\n `,\n changeDetection: ChangeDetectionStrategy.OnPush\n }]\n }], ctorParameters: function () { return [{ type: i0.ChangeDetectorRef }]; }, propDecorators: { containerId: [{\n type: Input\n }], value: [{\n type: Input\n }], isVertical: [{\n type: Input\n }], slideShowActive: [{\n type: Input\n }], circular: [{\n type: Input\n }], responsiveOptions: [{\n type: Input\n }], contentHeight: [{\n type: Input\n }], showThumbnailNavigators: [{\n type: Input\n }], templates: [{\n type: Input\n }], onActiveIndexChange: [{\n type: Output\n }], stopSlideShow: [{\n type: Output\n }], itemsContainer: [{\n type: ViewChild,\n args: ['itemsContainer']\n }], numVisible: [{\n type: Input\n }], activeIndex: [{\n type: Input\n }] } });\nclass GalleriaModule {\n}\nGalleriaModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: GalleriaModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nGalleriaModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: GalleriaModule, declarations: [Galleria, GalleriaContent, GalleriaItemSlot, GalleriaItem, GalleriaThumbnails], imports: [CommonModule, SharedModule, RippleModule], exports: [CommonModule, Galleria, GalleriaContent, GalleriaItemSlot, GalleriaItem, GalleriaThumbnails, SharedModule] });\nGalleriaModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: GalleriaModule, imports: [[CommonModule, SharedModule, RippleModule], CommonModule, SharedModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: GalleriaModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule, SharedModule, RippleModule],\n exports: [CommonModule, Galleria, GalleriaContent, GalleriaItemSlot, GalleriaItem, GalleriaThumbnails, SharedModule],\n declarations: [Galleria, GalleriaContent, GalleriaItemSlot, GalleriaItem, GalleriaThumbnails]\n }]\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Galleria, GalleriaContent, GalleriaItem, GalleriaItemSlot, GalleriaModule, GalleriaThumbnails };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/20cce459a73117880e512df751112cb6.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/20cce459a73117880e512df751112cb6.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/20cce459a73117880e512df751112cb6.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i1 from '@angular/cdk/scrolling';\nimport { ScrollingModule } from '@angular/cdk/scrolling';\nexport { CdkScrollable, ScrollDispatcher, ViewportRuler } from '@angular/cdk/scrolling';\nimport * as i6 from '@angular/common';\nimport { DOCUMENT } from '@angular/common';\nimport * as i0 from '@angular/core';\nimport { Injectable, Inject, ElementRef, ApplicationRef, InjectionToken, Directive, EventEmitter, Optional, Input, Output, NgModule } from '@angular/core';\nimport { coerceCssPixelValue, coerceArray, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport * as i1$1 from '@angular/cdk/platform';\nimport { supportsScrollBehavior, _getEventTarget, _isTestEnvironment } from '@angular/cdk/platform';\nimport * as i5 from '@angular/cdk/bidi';\nimport { BidiModule } from '@angular/cdk/bidi';\nimport { DomPortalOutlet, TemplatePortal, PortalModule } from '@angular/cdk/portal';\nimport { Subject, Subscription, merge } from 'rxjs';\nimport { take, takeUntil, takeWhile } from 'rxjs/operators';\nimport { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nconst scrollBehaviorSupported = supportsScrollBehavior();\n/**\n * Strategy that will prevent the user from scrolling while the overlay is visible.\n */\n\nclass BlockScrollStrategy {\n constructor(_viewportRuler, document) {\n this._viewportRuler = _viewportRuler;\n this._previousHTMLStyles = {\n top: '',\n left: ''\n };\n this._isEnabled = false;\n this._document = document;\n }\n /** Attaches this scroll strategy to an overlay. */\n\n\n attach() {}\n /** Blocks page-level scroll while the attached overlay is open. */\n\n\n enable() {\n if (this._canBeEnabled()) {\n const root = this._document.documentElement;\n this._previousScrollPosition = this._viewportRuler.getViewportScrollPosition(); // Cache the previous inline styles in case the user had set them.\n\n this._previousHTMLStyles.left = root.style.left || '';\n this._previousHTMLStyles.top = root.style.top || ''; // Note: we're using the `html` node, instead of the `body`, because the `body` may\n // have the user agent margin, whereas the `html` is guaranteed not to have one.\n\n root.style.left = coerceCssPixelValue(-this._previousScrollPosition.left);\n root.style.top = coerceCssPixelValue(-this._previousScrollPosition.top);\n root.classList.add('cdk-global-scrollblock');\n this._isEnabled = true;\n }\n }\n /** Unblocks page-level scroll while the attached overlay is open. */\n\n\n disable() {\n if (this._isEnabled) {\n const html = this._document.documentElement;\n const body = this._document.body;\n const htmlStyle = html.style;\n const bodyStyle = body.style;\n const previousHtmlScrollBehavior = htmlStyle.scrollBehavior || '';\n const previousBodyScrollBehavior = bodyStyle.scrollBehavior || '';\n this._isEnabled = false;\n htmlStyle.left = this._previousHTMLStyles.left;\n htmlStyle.top = this._previousHTMLStyles.top;\n html.classList.remove('cdk-global-scrollblock'); // Disable user-defined smooth scrolling temporarily while we restore the scroll position.\n // See https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-behavior\n // Note that we don't mutate the property if the browser doesn't support `scroll-behavior`,\n // because it can throw off feature detections in `supportsScrollBehavior` which\n // checks for `'scrollBehavior' in documentElement.style`.\n\n if (scrollBehaviorSupported) {\n htmlStyle.scrollBehavior = bodyStyle.scrollBehavior = 'auto';\n }\n\n window.scroll(this._previousScrollPosition.left, this._previousScrollPosition.top);\n\n if (scrollBehaviorSupported) {\n htmlStyle.scrollBehavior = previousHtmlScrollBehavior;\n bodyStyle.scrollBehavior = previousBodyScrollBehavior;\n }\n }\n }\n\n _canBeEnabled() {\n // Since the scroll strategies can't be singletons, we have to use a global CSS class\n // (`cdk-global-scrollblock`) to make sure that we don't try to disable global\n // scrolling multiple times.\n const html = this._document.documentElement;\n\n if (html.classList.contains('cdk-global-scrollblock') || this._isEnabled) {\n return false;\n }\n\n const body = this._document.body;\n\n const viewport = this._viewportRuler.getViewportSize();\n\n return body.scrollHeight > viewport.height || body.scrollWidth > viewport.width;\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Returns an error to be thrown when attempting to attach an already-attached scroll strategy.\n */\n\n\nfunction getMatScrollStrategyAlreadyAttachedError() {\n return Error(`Scroll strategy has already been attached.`);\n}\n/**\n * Strategy that will close the overlay as soon as the user starts scrolling.\n */\n\n\nclass CloseScrollStrategy {\n constructor(_scrollDispatcher, _ngZone, _viewportRuler, _config) {\n this._scrollDispatcher = _scrollDispatcher;\n this._ngZone = _ngZone;\n this._viewportRuler = _viewportRuler;\n this._config = _config;\n this._scrollSubscription = null;\n /** Detaches the overlay ref and disables the scroll strategy. */\n\n this._detach = () => {\n this.disable();\n\n if (this._overlayRef.hasAttached()) {\n this._ngZone.run(() => this._overlayRef.detach());\n }\n };\n }\n /** Attaches this scroll strategy to an overlay. */\n\n\n attach(overlayRef) {\n if (this._overlayRef && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw getMatScrollStrategyAlreadyAttachedError();\n }\n\n this._overlayRef = overlayRef;\n }\n /** Enables the closing of the attached overlay on scroll. */\n\n\n enable() {\n if (this._scrollSubscription) {\n return;\n }\n\n const stream = this._scrollDispatcher.scrolled(0);\n\n if (this._config && this._config.threshold && this._config.threshold > 1) {\n this._initialScrollPosition = this._viewportRuler.getViewportScrollPosition().top;\n this._scrollSubscription = stream.subscribe(() => {\n const scrollPosition = this._viewportRuler.getViewportScrollPosition().top;\n\n if (Math.abs(scrollPosition - this._initialScrollPosition) > this._config.threshold) {\n this._detach();\n } else {\n this._overlayRef.updatePosition();\n }\n });\n } else {\n this._scrollSubscription = stream.subscribe(this._detach);\n }\n }\n /** Disables the closing the attached overlay on scroll. */\n\n\n disable() {\n if (this._scrollSubscription) {\n this._scrollSubscription.unsubscribe();\n\n this._scrollSubscription = null;\n }\n }\n\n detach() {\n this.disable();\n this._overlayRef = null;\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Scroll strategy that doesn't do anything. */\n\n\nclass NoopScrollStrategy {\n /** Does nothing, as this scroll strategy is a no-op. */\n enable() {}\n /** Does nothing, as this scroll strategy is a no-op. */\n\n\n disable() {}\n /** Does nothing, as this scroll strategy is a no-op. */\n\n\n attach() {}\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Gets whether an element is scrolled outside of view by any of its parent scrolling containers.\n * @param element Dimensions of the element (from getBoundingClientRect)\n * @param scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @returns Whether the element is scrolled out of view\n * @docs-private\n */\n\n\nfunction isElementScrolledOutsideView(element, scrollContainers) {\n return scrollContainers.some(containerBounds => {\n const outsideAbove = element.bottom < containerBounds.top;\n const outsideBelow = element.top > containerBounds.bottom;\n const outsideLeft = element.right < containerBounds.left;\n const outsideRight = element.left > containerBounds.right;\n return outsideAbove || outsideBelow || outsideLeft || outsideRight;\n });\n}\n/**\n * Gets whether an element is clipped by any of its scrolling containers.\n * @param element Dimensions of the element (from getBoundingClientRect)\n * @param scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @returns Whether the element is clipped\n * @docs-private\n */\n\n\nfunction isElementClippedByScrolling(element, scrollContainers) {\n return scrollContainers.some(scrollContainerRect => {\n const clippedAbove = element.top < scrollContainerRect.top;\n const clippedBelow = element.bottom > scrollContainerRect.bottom;\n const clippedLeft = element.left < scrollContainerRect.left;\n const clippedRight = element.right > scrollContainerRect.right;\n return clippedAbove || clippedBelow || clippedLeft || clippedRight;\n });\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Strategy that will update the element position as the user is scrolling.\n */\n\n\nclass RepositionScrollStrategy {\n constructor(_scrollDispatcher, _viewportRuler, _ngZone, _config) {\n this._scrollDispatcher = _scrollDispatcher;\n this._viewportRuler = _viewportRuler;\n this._ngZone = _ngZone;\n this._config = _config;\n this._scrollSubscription = null;\n }\n /** Attaches this scroll strategy to an overlay. */\n\n\n attach(overlayRef) {\n if (this._overlayRef && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw getMatScrollStrategyAlreadyAttachedError();\n }\n\n this._overlayRef = overlayRef;\n }\n /** Enables repositioning of the attached overlay on scroll. */\n\n\n enable() {\n if (!this._scrollSubscription) {\n const throttle = this._config ? this._config.scrollThrottle : 0;\n this._scrollSubscription = this._scrollDispatcher.scrolled(throttle).subscribe(() => {\n this._overlayRef.updatePosition(); // TODO(crisbeto): make `close` on by default once all components can handle it.\n\n\n if (this._config && this._config.autoClose) {\n const overlayRect = this._overlayRef.overlayElement.getBoundingClientRect();\n\n const {\n width,\n height\n } = this._viewportRuler.getViewportSize(); // TODO(crisbeto): include all ancestor scroll containers here once\n // we have a way of exposing the trigger element to the scroll strategy.\n\n\n const parentRects = [{\n width,\n height,\n bottom: height,\n right: width,\n top: 0,\n left: 0\n }];\n\n if (isElementScrolledOutsideView(overlayRect, parentRects)) {\n this.disable();\n\n this._ngZone.run(() => this._overlayRef.detach());\n }\n }\n });\n }\n }\n /** Disables repositioning of the attached overlay on scroll. */\n\n\n disable() {\n if (this._scrollSubscription) {\n this._scrollSubscription.unsubscribe();\n\n this._scrollSubscription = null;\n }\n }\n\n detach() {\n this.disable();\n this._overlayRef = null;\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Options for how an overlay will handle scrolling.\n *\n * Users can provide a custom value for `ScrollStrategyOptions` to replace the default\n * behaviors. This class primarily acts as a factory for ScrollStrategy instances.\n */\n\n\nclass ScrollStrategyOptions {\n constructor(_scrollDispatcher, _viewportRuler, _ngZone, document) {\n this._scrollDispatcher = _scrollDispatcher;\n this._viewportRuler = _viewportRuler;\n this._ngZone = _ngZone;\n /** Do nothing on scroll. */\n\n this.noop = () => new NoopScrollStrategy();\n /**\n * Close the overlay as soon as the user scrolls.\n * @param config Configuration to be used inside the scroll strategy.\n */\n\n\n this.close = config => new CloseScrollStrategy(this._scrollDispatcher, this._ngZone, this._viewportRuler, config);\n /** Block scrolling. */\n\n\n this.block = () => new BlockScrollStrategy(this._viewportRuler, this._document);\n /**\n * Update the overlay's position on scroll.\n * @param config Configuration to be used inside the scroll strategy.\n * Allows debouncing the reposition calls.\n */\n\n\n this.reposition = config => new RepositionScrollStrategy(this._scrollDispatcher, this._viewportRuler, this._ngZone, config);\n\n this._document = document;\n }\n\n}\n\nScrollStrategyOptions.ɵfac = function ScrollStrategyOptions_Factory(t) {\n return new (t || ScrollStrategyOptions)(i0.ɵɵinject(i1.ScrollDispatcher), i0.ɵɵinject(i1.ViewportRuler), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(DOCUMENT));\n};\n\nScrollStrategyOptions.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ScrollStrategyOptions,\n factory: ScrollStrategyOptions.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ScrollStrategyOptions, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.ScrollDispatcher\n }, {\n type: i1.ViewportRuler\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Initial configuration used when creating an overlay. */\n\n\nclass OverlayConfig {\n constructor(config) {\n /** Strategy to be used when handling scroll events while the overlay is open. */\n this.scrollStrategy = new NoopScrollStrategy();\n /** Custom class to add to the overlay pane. */\n\n this.panelClass = '';\n /** Whether the overlay has a backdrop. */\n\n this.hasBackdrop = false;\n /** Custom class to add to the backdrop */\n\n this.backdropClass = 'cdk-overlay-dark-backdrop';\n /**\n * Whether the overlay should be disposed of when the user goes backwards/forwards in history.\n * Note that this usually doesn't include clicking on links (unless the user is using\n * the `HashLocationStrategy`).\n */\n\n this.disposeOnNavigation = false;\n\n if (config) {\n // Use `Iterable` instead of `Array` because TypeScript, as of 3.6.3,\n // loses the array generic type in the `for of`. But we *also* have to use `Array` because\n // typescript won't iterate over an `Iterable` unless you compile with `--downlevelIteration`\n const configKeys = Object.keys(config);\n\n for (const key of configKeys) {\n if (config[key] !== undefined) {\n // TypeScript, as of version 3.5, sees the left-hand-side of this expression\n // as \"I don't know *which* key this is, so the only valid value is the intersection\n // of all the posible values.\" In this case, that happens to be `undefined`. TypeScript\n // is not smart enough to see that the right-hand-side is actually an access of the same\n // exact type with the same exact key, meaning that the value type must be identical.\n // So we use `any` to work around this.\n this[key] = config[key];\n }\n }\n }\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** The points of the origin element and the overlay element to connect. */\n\n\nclass ConnectionPositionPair {\n constructor(origin, overlay,\n /** Offset along the X axis. */\n offsetX,\n /** Offset along the Y axis. */\n offsetY,\n /** Class(es) to be applied to the panel while this position is active. */\n panelClass) {\n this.offsetX = offsetX;\n this.offsetY = offsetY;\n this.panelClass = panelClass;\n this.originX = origin.originX;\n this.originY = origin.originY;\n this.overlayX = overlay.overlayX;\n this.overlayY = overlay.overlayY;\n }\n\n}\n/**\n * Set of properties regarding the position of the origin and overlay relative to the viewport\n * with respect to the containing Scrollable elements.\n *\n * The overlay and origin are clipped if any part of their bounding client rectangle exceeds the\n * bounds of any one of the strategy's Scrollable's bounding client rectangle.\n *\n * The overlay and origin are outside view if there is no overlap between their bounding client\n * rectangle and any one of the strategy's Scrollable's bounding client rectangle.\n *\n * ----------- -----------\n * | outside | | clipped |\n * | view | --------------------------\n * | | | | | |\n * ---------- | ----------- |\n * -------------------------- | |\n * | | | Scrollable |\n * | | | |\n * | | --------------------------\n * | Scrollable |\n * | |\n * --------------------------\n *\n * @docs-private\n */\n\n\nclass ScrollingVisibility {}\n/** The change event emitted by the strategy when a fallback position is used. */\n\n\nclass ConnectedOverlayPositionChange {\n constructor(\n /** The position used as a result of this change. */\n connectionPair,\n /** @docs-private */\n scrollableViewProperties) {\n this.connectionPair = connectionPair;\n this.scrollableViewProperties = scrollableViewProperties;\n }\n\n}\n/**\n * Validates whether a vertical position property matches the expected values.\n * @param property Name of the property being validated.\n * @param value Value of the property being validated.\n * @docs-private\n */\n\n\nfunction validateVerticalPosition(property, value) {\n if (value !== 'top' && value !== 'bottom' && value !== 'center') {\n throw Error(`ConnectedPosition: Invalid ${property} \"${value}\". ` + `Expected \"top\", \"bottom\" or \"center\".`);\n }\n}\n/**\n * Validates whether a horizontal position property matches the expected values.\n * @param property Name of the property being validated.\n * @param value Value of the property being validated.\n * @docs-private\n */\n\n\nfunction validateHorizontalPosition(property, value) {\n if (value !== 'start' && value !== 'end' && value !== 'center') {\n throw Error(`ConnectedPosition: Invalid ${property} \"${value}\". ` + `Expected \"start\", \"end\" or \"center\".`);\n }\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Service for dispatching events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\n\n\nclass BaseOverlayDispatcher {\n constructor(document) {\n /** Currently attached overlays in the order they were attached. */\n this._attachedOverlays = [];\n this._document = document;\n }\n\n ngOnDestroy() {\n this.detach();\n }\n /** Add a new overlay to the list of attached overlay refs. */\n\n\n add(overlayRef) {\n // Ensure that we don't get the same overlay multiple times.\n this.remove(overlayRef);\n\n this._attachedOverlays.push(overlayRef);\n }\n /** Remove an overlay from the list of attached overlay refs. */\n\n\n remove(overlayRef) {\n const index = this._attachedOverlays.indexOf(overlayRef);\n\n if (index > -1) {\n this._attachedOverlays.splice(index, 1);\n } // Remove the global listener once there are no more overlays.\n\n\n if (this._attachedOverlays.length === 0) {\n this.detach();\n }\n }\n\n}\n\nBaseOverlayDispatcher.ɵfac = function BaseOverlayDispatcher_Factory(t) {\n return new (t || BaseOverlayDispatcher)(i0.ɵɵinject(DOCUMENT));\n};\n\nBaseOverlayDispatcher.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: BaseOverlayDispatcher,\n factory: BaseOverlayDispatcher.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(BaseOverlayDispatcher, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Service for dispatching keyboard events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\n\n\nclass OverlayKeyboardDispatcher extends BaseOverlayDispatcher {\n constructor(document) {\n super(document);\n /** Keyboard event listener that will be attached to the body. */\n\n this._keydownListener = event => {\n const overlays = this._attachedOverlays;\n\n for (let i = overlays.length - 1; i > -1; i--) {\n // Dispatch the keydown event to the top overlay which has subscribers to its keydown events.\n // We want to target the most recent overlay, rather than trying to match where the event came\n // from, because some components might open an overlay, but keep focus on a trigger element\n // (e.g. for select and autocomplete). We skip overlays without keydown event subscriptions,\n // because we don't want overlays that don't handle keyboard events to block the ones below\n // them that do.\n if (overlays[i]._keydownEvents.observers.length > 0) {\n overlays[i]._keydownEvents.next(event);\n\n break;\n }\n }\n };\n }\n /** Add a new overlay to the list of attached overlay refs. */\n\n\n add(overlayRef) {\n super.add(overlayRef); // Lazily start dispatcher once first overlay is added\n\n if (!this._isAttached) {\n this._document.body.addEventListener('keydown', this._keydownListener);\n\n this._isAttached = true;\n }\n }\n /** Detaches the global keyboard event listener. */\n\n\n detach() {\n if (this._isAttached) {\n this._document.body.removeEventListener('keydown', this._keydownListener);\n\n this._isAttached = false;\n }\n }\n\n}\n\nOverlayKeyboardDispatcher.ɵfac = function OverlayKeyboardDispatcher_Factory(t) {\n return new (t || OverlayKeyboardDispatcher)(i0.ɵɵinject(DOCUMENT));\n};\n\nOverlayKeyboardDispatcher.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: OverlayKeyboardDispatcher,\n factory: OverlayKeyboardDispatcher.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(OverlayKeyboardDispatcher, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Service for dispatching mouse click events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\n\n\nclass OverlayOutsideClickDispatcher extends BaseOverlayDispatcher {\n constructor(document, _platform) {\n super(document);\n this._platform = _platform;\n this._cursorStyleIsSet = false;\n /** Store pointerdown event target to track origin of click. */\n\n this._pointerDownListener = event => {\n this._pointerDownEventTarget = _getEventTarget(event);\n };\n /** Click event listener that will be attached to the body propagate phase. */\n\n\n this._clickListener = event => {\n const target = _getEventTarget(event); // In case of a click event, we want to check the origin of the click\n // (e.g. in case where a user starts a click inside the overlay and\n // releases the click outside of it).\n // This is done by using the event target of the preceding pointerdown event.\n // Every click event caused by a pointer device has a preceding pointerdown\n // event, unless the click was programmatically triggered (e.g. in a unit test).\n\n\n const origin = event.type === 'click' && this._pointerDownEventTarget ? this._pointerDownEventTarget : target; // Reset the stored pointerdown event target, to avoid having it interfere\n // in subsequent events.\n\n this._pointerDownEventTarget = null; // We copy the array because the original may be modified asynchronously if the\n // outsidePointerEvents listener decides to detach overlays resulting in index errors inside\n // the for loop.\n\n const overlays = this._attachedOverlays.slice(); // Dispatch the mouse event to the top overlay which has subscribers to its mouse events.\n // We want to target all overlays for which the click could be considered as outside click.\n // As soon as we reach an overlay for which the click is not outside click we break off\n // the loop.\n\n\n for (let i = overlays.length - 1; i > -1; i--) {\n const overlayRef = overlays[i];\n\n if (overlayRef._outsidePointerEvents.observers.length < 1 || !overlayRef.hasAttached()) {\n continue;\n } // If it's a click inside the overlay, just break - we should do nothing\n // If it's an outside click (both origin and target of the click) dispatch the mouse event,\n // and proceed with the next overlay\n\n\n if (overlayRef.overlayElement.contains(target) || overlayRef.overlayElement.contains(origin)) {\n break;\n }\n\n overlayRef._outsidePointerEvents.next(event);\n }\n };\n }\n /** Add a new overlay to the list of attached overlay refs. */\n\n\n add(overlayRef) {\n super.add(overlayRef); // Safari on iOS does not generate click events for non-interactive\n // elements. However, we want to receive a click for any element outside\n // the overlay. We can force a \"clickable\" state by setting\n // `cursor: pointer` on the document body. See:\n // https://developer.mozilla.org/en-US/docs/Web/API/Element/click_event#Safari_Mobile\n // https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/HandlingEvents/HandlingEvents.html\n\n if (!this._isAttached) {\n const body = this._document.body;\n body.addEventListener('pointerdown', this._pointerDownListener, true);\n body.addEventListener('click', this._clickListener, true);\n body.addEventListener('auxclick', this._clickListener, true);\n body.addEventListener('contextmenu', this._clickListener, true); // click event is not fired on iOS. To make element \"clickable\" we are\n // setting the cursor to pointer\n\n if (this._platform.IOS && !this._cursorStyleIsSet) {\n this._cursorOriginalValue = body.style.cursor;\n body.style.cursor = 'pointer';\n this._cursorStyleIsSet = true;\n }\n\n this._isAttached = true;\n }\n }\n /** Detaches the global keyboard event listener. */\n\n\n detach() {\n if (this._isAttached) {\n const body = this._document.body;\n body.removeEventListener('pointerdown', this._pointerDownListener, true);\n body.removeEventListener('click', this._clickListener, true);\n body.removeEventListener('auxclick', this._clickListener, true);\n body.removeEventListener('contextmenu', this._clickListener, true);\n\n if (this._platform.IOS && this._cursorStyleIsSet) {\n body.style.cursor = this._cursorOriginalValue;\n this._cursorStyleIsSet = false;\n }\n\n this._isAttached = false;\n }\n }\n\n}\n\nOverlayOutsideClickDispatcher.ɵfac = function OverlayOutsideClickDispatcher_Factory(t) {\n return new (t || OverlayOutsideClickDispatcher)(i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(i1$1.Platform));\n};\n\nOverlayOutsideClickDispatcher.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: OverlayOutsideClickDispatcher,\n factory: OverlayOutsideClickDispatcher.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(OverlayOutsideClickDispatcher, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: i1$1.Platform\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Container inside which all overlays will render. */\n\n\nclass OverlayContainer {\n constructor(document, _platform) {\n this._platform = _platform;\n this._document = document;\n }\n\n ngOnDestroy() {\n this._containerElement?.remove();\n }\n /**\n * This method returns the overlay container element. It will lazily\n * create the element the first time it is called to facilitate using\n * the container in non-browser environments.\n * @returns the container element\n */\n\n\n getContainerElement() {\n if (!this._containerElement) {\n this._createContainer();\n }\n\n return this._containerElement;\n }\n /**\n * Create the overlay container element, which is simply a div\n * with the 'cdk-overlay-container' class on the document body.\n */\n\n\n _createContainer() {\n const containerClass = 'cdk-overlay-container'; // TODO(crisbeto): remove the testing check once we have an overlay testing\n // module or Angular starts tearing down the testing `NgModule`. See:\n // https://github.com/angular/angular/issues/18831\n\n if (this._platform.isBrowser || _isTestEnvironment()) {\n const oppositePlatformContainers = this._document.querySelectorAll(`.${containerClass}[platform=\"server\"], ` + `.${containerClass}[platform=\"test\"]`); // Remove any old containers from the opposite platform.\n // This can happen when transitioning from the server to the client.\n\n\n for (let i = 0; i < oppositePlatformContainers.length; i++) {\n oppositePlatformContainers[i].remove();\n }\n }\n\n const container = this._document.createElement('div');\n\n container.classList.add(containerClass); // A long time ago we kept adding new overlay containers whenever a new app was instantiated,\n // but at some point we added logic which clears the duplicate ones in order to avoid leaks.\n // The new logic was a little too aggressive since it was breaking some legitimate use cases.\n // To mitigate the problem we made it so that only containers from a different platform are\n // cleared, but the side-effect was that people started depending on the overly-aggressive\n // logic to clean up their tests for them. Until we can introduce an overlay-specific testing\n // module which does the cleanup, we try to detect that we're in a test environment and we\n // always clear the container. See #17006.\n // TODO(crisbeto): remove the test environment check once we have an overlay testing module.\n\n if (_isTestEnvironment()) {\n container.setAttribute('platform', 'test');\n } else if (!this._platform.isBrowser) {\n container.setAttribute('platform', 'server');\n }\n\n this._document.body.appendChild(container);\n\n this._containerElement = container;\n }\n\n}\n\nOverlayContainer.ɵfac = function OverlayContainer_Factory(t) {\n return new (t || OverlayContainer)(i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(i1$1.Platform));\n};\n\nOverlayContainer.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: OverlayContainer,\n factory: OverlayContainer.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(OverlayContainer, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: i1$1.Platform\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Reference to an overlay that has been created with the Overlay service.\n * Used to manipulate or dispose of said overlay.\n */\n\n\nclass OverlayRef {\n constructor(_portalOutlet, _host, _pane, _config, _ngZone, _keyboardDispatcher, _document, _location, _outsideClickDispatcher) {\n this._portalOutlet = _portalOutlet;\n this._host = _host;\n this._pane = _pane;\n this._config = _config;\n this._ngZone = _ngZone;\n this._keyboardDispatcher = _keyboardDispatcher;\n this._document = _document;\n this._location = _location;\n this._outsideClickDispatcher = _outsideClickDispatcher;\n this._backdropElement = null;\n this._backdropClick = new Subject();\n this._attachments = new Subject();\n this._detachments = new Subject();\n this._locationChanges = Subscription.EMPTY;\n\n this._backdropClickHandler = event => this._backdropClick.next(event);\n /** Stream of keydown events dispatched to this overlay. */\n\n\n this._keydownEvents = new Subject();\n /** Stream of mouse outside events dispatched to this overlay. */\n\n this._outsidePointerEvents = new Subject();\n\n if (_config.scrollStrategy) {\n this._scrollStrategy = _config.scrollStrategy;\n\n this._scrollStrategy.attach(this);\n }\n\n this._positionStrategy = _config.positionStrategy;\n }\n /** The overlay's HTML element */\n\n\n get overlayElement() {\n return this._pane;\n }\n /** The overlay's backdrop HTML element. */\n\n\n get backdropElement() {\n return this._backdropElement;\n }\n /**\n * Wrapper around the panel element. Can be used for advanced\n * positioning where a wrapper with specific styling is\n * required around the overlay pane.\n */\n\n\n get hostElement() {\n return this._host;\n }\n /**\n * Attaches content, given via a Portal, to the overlay.\n * If the overlay is configured to have a backdrop, it will be created.\n *\n * @param portal Portal instance to which to attach the overlay.\n * @returns The portal attachment result.\n */\n\n\n attach(portal) {\n let attachResult = this._portalOutlet.attach(portal); // Update the pane element with the given configuration.\n\n\n if (!this._host.parentElement && this._previousHostParent) {\n this._previousHostParent.appendChild(this._host);\n }\n\n if (this._positionStrategy) {\n this._positionStrategy.attach(this);\n }\n\n this._updateStackingOrder();\n\n this._updateElementSize();\n\n this._updateElementDirection();\n\n if (this._scrollStrategy) {\n this._scrollStrategy.enable();\n } // Update the position once the zone is stable so that the overlay will be fully rendered\n // before attempting to position it, as the position may depend on the size of the rendered\n // content.\n\n\n this._ngZone.onStable.pipe(take(1)).subscribe(() => {\n // The overlay could've been detached before the zone has stabilized.\n if (this.hasAttached()) {\n this.updatePosition();\n }\n }); // Enable pointer events for the overlay pane element.\n\n\n this._togglePointerEvents(true);\n\n if (this._config.hasBackdrop) {\n this._attachBackdrop();\n }\n\n if (this._config.panelClass) {\n this._toggleClasses(this._pane, this._config.panelClass, true);\n } // Only emit the `attachments` event once all other setup is done.\n\n\n this._attachments.next(); // Track this overlay by the keyboard dispatcher\n\n\n this._keyboardDispatcher.add(this);\n\n if (this._config.disposeOnNavigation) {\n this._locationChanges = this._location.subscribe(() => this.dispose());\n }\n\n this._outsideClickDispatcher.add(this);\n\n return attachResult;\n }\n /**\n * Detaches an overlay from a portal.\n * @returns The portal detachment result.\n */\n\n\n detach() {\n if (!this.hasAttached()) {\n return;\n }\n\n this.detachBackdrop(); // When the overlay is detached, the pane element should disable pointer events.\n // This is necessary because otherwise the pane element will cover the page and disable\n // pointer events therefore. Depends on the position strategy and the applied pane boundaries.\n\n this._togglePointerEvents(false);\n\n if (this._positionStrategy && this._positionStrategy.detach) {\n this._positionStrategy.detach();\n }\n\n if (this._scrollStrategy) {\n this._scrollStrategy.disable();\n }\n\n const detachmentResult = this._portalOutlet.detach(); // Only emit after everything is detached.\n\n\n this._detachments.next(); // Remove this overlay from keyboard dispatcher tracking.\n\n\n this._keyboardDispatcher.remove(this); // Keeping the host element in the DOM can cause scroll jank, because it still gets\n // rendered, even though it's transparent and unclickable which is why we remove it.\n\n\n this._detachContentWhenStable();\n\n this._locationChanges.unsubscribe();\n\n this._outsideClickDispatcher.remove(this);\n\n return detachmentResult;\n }\n /** Cleans up the overlay from the DOM. */\n\n\n dispose() {\n const isAttached = this.hasAttached();\n\n if (this._positionStrategy) {\n this._positionStrategy.dispose();\n }\n\n this._disposeScrollStrategy();\n\n this._disposeBackdrop(this._backdropElement);\n\n this._locationChanges.unsubscribe();\n\n this._keyboardDispatcher.remove(this);\n\n this._portalOutlet.dispose();\n\n this._attachments.complete();\n\n this._backdropClick.complete();\n\n this._keydownEvents.complete();\n\n this._outsidePointerEvents.complete();\n\n this._outsideClickDispatcher.remove(this);\n\n this._host?.remove();\n this._previousHostParent = this._pane = this._host = null;\n\n if (isAttached) {\n this._detachments.next();\n }\n\n this._detachments.complete();\n }\n /** Whether the overlay has attached content. */\n\n\n hasAttached() {\n return this._portalOutlet.hasAttached();\n }\n /** Gets an observable that emits when the backdrop has been clicked. */\n\n\n backdropClick() {\n return this._backdropClick;\n }\n /** Gets an observable that emits when the overlay has been attached. */\n\n\n attachments() {\n return this._attachments;\n }\n /** Gets an observable that emits when the overlay has been detached. */\n\n\n detachments() {\n return this._detachments;\n }\n /** Gets an observable of keydown events targeted to this overlay. */\n\n\n keydownEvents() {\n return this._keydownEvents;\n }\n /** Gets an observable of pointer events targeted outside this overlay. */\n\n\n outsidePointerEvents() {\n return this._outsidePointerEvents;\n }\n /** Gets the current overlay configuration, which is immutable. */\n\n\n getConfig() {\n return this._config;\n }\n /** Updates the position of the overlay based on the position strategy. */\n\n\n updatePosition() {\n if (this._positionStrategy) {\n this._positionStrategy.apply();\n }\n }\n /** Switches to a new position strategy and updates the overlay position. */\n\n\n updatePositionStrategy(strategy) {\n if (strategy === this._positionStrategy) {\n return;\n }\n\n if (this._positionStrategy) {\n this._positionStrategy.dispose();\n }\n\n this._positionStrategy = strategy;\n\n if (this.hasAttached()) {\n strategy.attach(this);\n this.updatePosition();\n }\n }\n /** Update the size properties of the overlay. */\n\n\n updateSize(sizeConfig) {\n this._config = { ...this._config,\n ...sizeConfig\n };\n\n this._updateElementSize();\n }\n /** Sets the LTR/RTL direction for the overlay. */\n\n\n setDirection(dir) {\n this._config = { ...this._config,\n direction: dir\n };\n\n this._updateElementDirection();\n }\n /** Add a CSS class or an array of classes to the overlay pane. */\n\n\n addPanelClass(classes) {\n if (this._pane) {\n this._toggleClasses(this._pane, classes, true);\n }\n }\n /** Remove a CSS class or an array of classes from the overlay pane. */\n\n\n removePanelClass(classes) {\n if (this._pane) {\n this._toggleClasses(this._pane, classes, false);\n }\n }\n /**\n * Returns the layout direction of the overlay panel.\n */\n\n\n getDirection() {\n const direction = this._config.direction;\n\n if (!direction) {\n return 'ltr';\n }\n\n return typeof direction === 'string' ? direction : direction.value;\n }\n /** Switches to a new scroll strategy. */\n\n\n updateScrollStrategy(strategy) {\n if (strategy === this._scrollStrategy) {\n return;\n }\n\n this._disposeScrollStrategy();\n\n this._scrollStrategy = strategy;\n\n if (this.hasAttached()) {\n strategy.attach(this);\n strategy.enable();\n }\n }\n /** Updates the text direction of the overlay panel. */\n\n\n _updateElementDirection() {\n this._host.setAttribute('dir', this.getDirection());\n }\n /** Updates the size of the overlay element based on the overlay config. */\n\n\n _updateElementSize() {\n if (!this._pane) {\n return;\n }\n\n const style = this._pane.style;\n style.width = coerceCssPixelValue(this._config.width);\n style.height = coerceCssPixelValue(this._config.height);\n style.minWidth = coerceCssPixelValue(this._config.minWidth);\n style.minHeight = coerceCssPixelValue(this._config.minHeight);\n style.maxWidth = coerceCssPixelValue(this._config.maxWidth);\n style.maxHeight = coerceCssPixelValue(this._config.maxHeight);\n }\n /** Toggles the pointer events for the overlay pane element. */\n\n\n _togglePointerEvents(enablePointer) {\n this._pane.style.pointerEvents = enablePointer ? '' : 'none';\n }\n /** Attaches a backdrop for this overlay. */\n\n\n _attachBackdrop() {\n const showingClass = 'cdk-overlay-backdrop-showing';\n this._backdropElement = this._document.createElement('div');\n\n this._backdropElement.classList.add('cdk-overlay-backdrop');\n\n if (this._config.backdropClass) {\n this._toggleClasses(this._backdropElement, this._config.backdropClass, true);\n } // Insert the backdrop before the pane in the DOM order,\n // in order to handle stacked overlays properly.\n\n\n this._host.parentElement.insertBefore(this._backdropElement, this._host); // Forward backdrop clicks such that the consumer of the overlay can perform whatever\n // action desired when such a click occurs (usually closing the overlay).\n\n\n this._backdropElement.addEventListener('click', this._backdropClickHandler); // Add class to fade-in the backdrop after one frame.\n\n\n if (typeof requestAnimationFrame !== 'undefined') {\n this._ngZone.runOutsideAngular(() => {\n requestAnimationFrame(() => {\n if (this._backdropElement) {\n this._backdropElement.classList.add(showingClass);\n }\n });\n });\n } else {\n this._backdropElement.classList.add(showingClass);\n }\n }\n /**\n * Updates the stacking order of the element, moving it to the top if necessary.\n * This is required in cases where one overlay was detached, while another one,\n * that should be behind it, was destroyed. The next time both of them are opened,\n * the stacking will be wrong, because the detached element's pane will still be\n * in its original DOM position.\n */\n\n\n _updateStackingOrder() {\n if (this._host.nextSibling) {\n this._host.parentNode.appendChild(this._host);\n }\n }\n /** Detaches the backdrop (if any) associated with the overlay. */\n\n\n detachBackdrop() {\n const backdropToDetach = this._backdropElement;\n\n if (!backdropToDetach) {\n return;\n }\n\n let timeoutId;\n\n const finishDetach = () => {\n // It may not be attached to anything in certain cases (e.g. unit tests).\n if (backdropToDetach) {\n backdropToDetach.removeEventListener('click', this._backdropClickHandler);\n backdropToDetach.removeEventListener('transitionend', finishDetach);\n\n this._disposeBackdrop(backdropToDetach);\n }\n\n if (this._config.backdropClass) {\n this._toggleClasses(backdropToDetach, this._config.backdropClass, false);\n }\n\n clearTimeout(timeoutId);\n };\n\n backdropToDetach.classList.remove('cdk-overlay-backdrop-showing');\n\n this._ngZone.runOutsideAngular(() => {\n backdropToDetach.addEventListener('transitionend', finishDetach);\n }); // If the backdrop doesn't have a transition, the `transitionend` event won't fire.\n // In this case we make it unclickable and we try to remove it after a delay.\n\n\n backdropToDetach.style.pointerEvents = 'none'; // Run this outside the Angular zone because there's nothing that Angular cares about.\n // If it were to run inside the Angular zone, every test that used Overlay would have to be\n // either async or fakeAsync.\n\n timeoutId = this._ngZone.runOutsideAngular(() => setTimeout(finishDetach, 500));\n }\n /** Toggles a single CSS class or an array of classes on an element. */\n\n\n _toggleClasses(element, cssClasses, isAdd) {\n const classes = coerceArray(cssClasses || []).filter(c => !!c);\n\n if (classes.length) {\n isAdd ? element.classList.add(...classes) : element.classList.remove(...classes);\n }\n }\n /** Detaches the overlay content next time the zone stabilizes. */\n\n\n _detachContentWhenStable() {\n // Normally we wouldn't have to explicitly run this outside the `NgZone`, however\n // if the consumer is using `zone-patch-rxjs`, the `Subscription.unsubscribe` call will\n // be patched to run inside the zone, which will throw us into an infinite loop.\n this._ngZone.runOutsideAngular(() => {\n // We can't remove the host here immediately, because the overlay pane's content\n // might still be animating. This stream helps us avoid interrupting the animation\n // by waiting for the pane to become empty.\n const subscription = this._ngZone.onStable.pipe(takeUntil(merge(this._attachments, this._detachments))).subscribe(() => {\n // Needs a couple of checks for the pane and host, because\n // they may have been removed by the time the zone stabilizes.\n if (!this._pane || !this._host || this._pane.children.length === 0) {\n if (this._pane && this._config.panelClass) {\n this._toggleClasses(this._pane, this._config.panelClass, false);\n }\n\n if (this._host && this._host.parentElement) {\n this._previousHostParent = this._host.parentElement;\n\n this._host.remove();\n }\n\n subscription.unsubscribe();\n }\n });\n });\n }\n /** Disposes of a scroll strategy. */\n\n\n _disposeScrollStrategy() {\n const scrollStrategy = this._scrollStrategy;\n\n if (scrollStrategy) {\n scrollStrategy.disable();\n\n if (scrollStrategy.detach) {\n scrollStrategy.detach();\n }\n }\n }\n /** Removes a backdrop element from the DOM. */\n\n\n _disposeBackdrop(backdrop) {\n if (backdrop) {\n backdrop.remove(); // It is possible that a new portal has been attached to this overlay since we started\n // removing the backdrop. If that is the case, only clear the backdrop reference if it\n // is still the same instance that we started to remove.\n\n if (this._backdropElement === backdrop) {\n this._backdropElement = null;\n }\n }\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// TODO: refactor clipping detection into a separate thing (part of scrolling module)\n// TODO: doesn't handle both flexible width and height when it has to scroll along both axis.\n\n/** Class to be added to the overlay bounding box. */\n\n\nconst boundingBoxClass = 'cdk-overlay-connected-position-bounding-box';\n/** Regex used to split a string on its CSS units. */\n\nconst cssUnitPattern = /([A-Za-z%]+)$/;\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * implicit position relative some origin element. The relative position is defined in terms of\n * a point on the origin element that is connected to a point on the overlay element. For example,\n * a basic dropdown is connecting the bottom-left corner of the origin to the top-left corner\n * of the overlay.\n */\n\nclass FlexibleConnectedPositionStrategy {\n constructor(connectedTo, _viewportRuler, _document, _platform, _overlayContainer) {\n this._viewportRuler = _viewportRuler;\n this._document = _document;\n this._platform = _platform;\n this._overlayContainer = _overlayContainer;\n /** Last size used for the bounding box. Used to avoid resizing the overlay after open. */\n\n this._lastBoundingBoxSize = {\n width: 0,\n height: 0\n };\n /** Whether the overlay was pushed in a previous positioning. */\n\n this._isPushed = false;\n /** Whether the overlay can be pushed on-screen on the initial open. */\n\n this._canPush = true;\n /** Whether the overlay can grow via flexible width/height after the initial open. */\n\n this._growAfterOpen = false;\n /** Whether the overlay's width and height can be constrained to fit within the viewport. */\n\n this._hasFlexibleDimensions = true;\n /** Whether the overlay position is locked. */\n\n this._positionLocked = false;\n /** Amount of space that must be maintained between the overlay and the edge of the viewport. */\n\n this._viewportMargin = 0;\n /** The Scrollable containers used to check scrollable view properties on position change. */\n\n this._scrollables = [];\n /** Ordered list of preferred positions, from most to least desirable. */\n\n this._preferredPositions = [];\n /** Subject that emits whenever the position changes. */\n\n this._positionChanges = new Subject();\n /** Subscription to viewport size changes. */\n\n this._resizeSubscription = Subscription.EMPTY;\n /** Default offset for the overlay along the x axis. */\n\n this._offsetX = 0;\n /** Default offset for the overlay along the y axis. */\n\n this._offsetY = 0;\n /** Keeps track of the CSS classes that the position strategy has applied on the overlay panel. */\n\n this._appliedPanelClasses = [];\n /** Observable sequence of position changes. */\n\n this.positionChanges = this._positionChanges;\n this.setOrigin(connectedTo);\n }\n /** Ordered list of preferred positions, from most to least desirable. */\n\n\n get positions() {\n return this._preferredPositions;\n }\n /** Attaches this position strategy to an overlay. */\n\n\n attach(overlayRef) {\n if (this._overlayRef && overlayRef !== this._overlayRef && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('This position strategy is already attached to an overlay');\n }\n\n this._validatePositions();\n\n overlayRef.hostElement.classList.add(boundingBoxClass);\n this._overlayRef = overlayRef;\n this._boundingBox = overlayRef.hostElement;\n this._pane = overlayRef.overlayElement;\n this._isDisposed = false;\n this._isInitialRender = true;\n this._lastPosition = null;\n\n this._resizeSubscription.unsubscribe();\n\n this._resizeSubscription = this._viewportRuler.change().subscribe(() => {\n // When the window is resized, we want to trigger the next reposition as if it\n // was an initial render, in order for the strategy to pick a new optimal position,\n // otherwise position locking will cause it to stay at the old one.\n this._isInitialRender = true;\n this.apply();\n });\n }\n /**\n * Updates the position of the overlay element, using whichever preferred position relative\n * to the origin best fits on-screen.\n *\n * The selection of a position goes as follows:\n * - If any positions fit completely within the viewport as-is,\n * choose the first position that does so.\n * - If flexible dimensions are enabled and at least one satifies the given minimum width/height,\n * choose the position with the greatest available size modified by the positions' weight.\n * - If pushing is enabled, take the position that went off-screen the least and push it\n * on-screen.\n * - If none of the previous criteria were met, use the position that goes off-screen the least.\n * @docs-private\n */\n\n\n apply() {\n // We shouldn't do anything if the strategy was disposed or we're on the server.\n if (this._isDisposed || !this._platform.isBrowser) {\n return;\n } // If the position has been applied already (e.g. when the overlay was opened) and the\n // consumer opted into locking in the position, re-use the old position, in order to\n // prevent the overlay from jumping around.\n\n\n if (!this._isInitialRender && this._positionLocked && this._lastPosition) {\n this.reapplyLastPosition();\n return;\n }\n\n this._clearPanelClasses();\n\n this._resetOverlayElementStyles();\n\n this._resetBoundingBoxStyles(); // We need the bounding rects for the origin and the overlay to determine how to position\n // the overlay relative to the origin.\n // We use the viewport rect to determine whether a position would go off-screen.\n\n\n this._viewportRect = this._getNarrowedViewportRect();\n this._originRect = this._getOriginRect();\n this._overlayRect = this._pane.getBoundingClientRect();\n const originRect = this._originRect;\n const overlayRect = this._overlayRect;\n const viewportRect = this._viewportRect; // Positions where the overlay will fit with flexible dimensions.\n\n const flexibleFits = []; // Fallback if none of the preferred positions fit within the viewport.\n\n let fallback; // Go through each of the preferred positions looking for a good fit.\n // If a good fit is found, it will be applied immediately.\n\n for (let pos of this._preferredPositions) {\n // Get the exact (x, y) coordinate for the point-of-origin on the origin element.\n let originPoint = this._getOriginPoint(originRect, pos); // From that point-of-origin, get the exact (x, y) coordinate for the top-left corner of the\n // overlay in this position. We use the top-left corner for calculations and later translate\n // this into an appropriate (top, left, bottom, right) style.\n\n\n let overlayPoint = this._getOverlayPoint(originPoint, overlayRect, pos); // Calculate how well the overlay would fit into the viewport with this point.\n\n\n let overlayFit = this._getOverlayFit(overlayPoint, overlayRect, viewportRect, pos); // If the overlay, without any further work, fits into the viewport, use this position.\n\n\n if (overlayFit.isCompletelyWithinViewport) {\n this._isPushed = false;\n\n this._applyPosition(pos, originPoint);\n\n return;\n } // If the overlay has flexible dimensions, we can use this position\n // so long as there's enough space for the minimum dimensions.\n\n\n if (this._canFitWithFlexibleDimensions(overlayFit, overlayPoint, viewportRect)) {\n // Save positions where the overlay will fit with flexible dimensions. We will use these\n // if none of the positions fit *without* flexible dimensions.\n flexibleFits.push({\n position: pos,\n origin: originPoint,\n overlayRect,\n boundingBoxRect: this._calculateBoundingBoxRect(originPoint, pos)\n });\n continue;\n } // If the current preferred position does not fit on the screen, remember the position\n // if it has more visible area on-screen than we've seen and move onto the next preferred\n // position.\n\n\n if (!fallback || fallback.overlayFit.visibleArea < overlayFit.visibleArea) {\n fallback = {\n overlayFit,\n overlayPoint,\n originPoint,\n position: pos,\n overlayRect\n };\n }\n } // If there are any positions where the overlay would fit with flexible dimensions, choose the\n // one that has the greatest area available modified by the position's weight\n\n\n if (flexibleFits.length) {\n let bestFit = null;\n let bestScore = -1;\n\n for (const fit of flexibleFits) {\n const score = fit.boundingBoxRect.width * fit.boundingBoxRect.height * (fit.position.weight || 1);\n\n if (score > bestScore) {\n bestScore = score;\n bestFit = fit;\n }\n }\n\n this._isPushed = false;\n\n this._applyPosition(bestFit.position, bestFit.origin);\n\n return;\n } // When none of the preferred positions fit within the viewport, take the position\n // that went off-screen the least and attempt to push it on-screen.\n\n\n if (this._canPush) {\n // TODO(jelbourn): after pushing, the opening \"direction\" of the overlay might not make sense.\n this._isPushed = true;\n\n this._applyPosition(fallback.position, fallback.originPoint);\n\n return;\n } // All options for getting the overlay within the viewport have been exhausted, so go with the\n // position that went off-screen the least.\n\n\n this._applyPosition(fallback.position, fallback.originPoint);\n }\n\n detach() {\n this._clearPanelClasses();\n\n this._lastPosition = null;\n this._previousPushAmount = null;\n\n this._resizeSubscription.unsubscribe();\n }\n /** Cleanup after the element gets destroyed. */\n\n\n dispose() {\n if (this._isDisposed) {\n return;\n } // We can't use `_resetBoundingBoxStyles` here, because it resets\n // some properties to zero, rather than removing them.\n\n\n if (this._boundingBox) {\n extendStyles(this._boundingBox.style, {\n top: '',\n left: '',\n right: '',\n bottom: '',\n height: '',\n width: '',\n alignItems: '',\n justifyContent: ''\n });\n }\n\n if (this._pane) {\n this._resetOverlayElementStyles();\n }\n\n if (this._overlayRef) {\n this._overlayRef.hostElement.classList.remove(boundingBoxClass);\n }\n\n this.detach();\n\n this._positionChanges.complete();\n\n this._overlayRef = this._boundingBox = null;\n this._isDisposed = true;\n }\n /**\n * This re-aligns the overlay element with the trigger in its last calculated position,\n * even if a position higher in the \"preferred positions\" list would now fit. This\n * allows one to re-align the panel without changing the orientation of the panel.\n */\n\n\n reapplyLastPosition() {\n if (!this._isDisposed && (!this._platform || this._platform.isBrowser)) {\n this._originRect = this._getOriginRect();\n this._overlayRect = this._pane.getBoundingClientRect();\n this._viewportRect = this._getNarrowedViewportRect();\n const lastPosition = this._lastPosition || this._preferredPositions[0];\n\n const originPoint = this._getOriginPoint(this._originRect, lastPosition);\n\n this._applyPosition(lastPosition, originPoint);\n }\n }\n /**\n * Sets the list of Scrollable containers that host the origin element so that\n * on reposition we can evaluate if it or the overlay has been clipped or outside view. Every\n * Scrollable must be an ancestor element of the strategy's origin element.\n */\n\n\n withScrollableContainers(scrollables) {\n this._scrollables = scrollables;\n return this;\n }\n /**\n * Adds new preferred positions.\n * @param positions List of positions options for this overlay.\n */\n\n\n withPositions(positions) {\n this._preferredPositions = positions; // If the last calculated position object isn't part of the positions anymore, clear\n // it in order to avoid it being picked up if the consumer tries to re-apply.\n\n if (positions.indexOf(this._lastPosition) === -1) {\n this._lastPosition = null;\n }\n\n this._validatePositions();\n\n return this;\n }\n /**\n * Sets a minimum distance the overlay may be positioned to the edge of the viewport.\n * @param margin Required margin between the overlay and the viewport edge in pixels.\n */\n\n\n withViewportMargin(margin) {\n this._viewportMargin = margin;\n return this;\n }\n /** Sets whether the overlay's width and height can be constrained to fit within the viewport. */\n\n\n withFlexibleDimensions(flexibleDimensions = true) {\n this._hasFlexibleDimensions = flexibleDimensions;\n return this;\n }\n /** Sets whether the overlay can grow after the initial open via flexible width/height. */\n\n\n withGrowAfterOpen(growAfterOpen = true) {\n this._growAfterOpen = growAfterOpen;\n return this;\n }\n /** Sets whether the overlay can be pushed on-screen if none of the provided positions fit. */\n\n\n withPush(canPush = true) {\n this._canPush = canPush;\n return this;\n }\n /**\n * Sets whether the overlay's position should be locked in after it is positioned\n * initially. When an overlay is locked in, it won't attempt to reposition itself\n * when the position is re-applied (e.g. when the user scrolls away).\n * @param isLocked Whether the overlay should locked in.\n */\n\n\n withLockedPosition(isLocked = true) {\n this._positionLocked = isLocked;\n return this;\n }\n /**\n * Sets the origin, relative to which to position the overlay.\n * Using an element origin is useful for building components that need to be positioned\n * relatively to a trigger (e.g. dropdown menus or tooltips), whereas using a point can be\n * used for cases like contextual menus which open relative to the user's pointer.\n * @param origin Reference to the new origin.\n */\n\n\n setOrigin(origin) {\n this._origin = origin;\n return this;\n }\n /**\n * Sets the default offset for the overlay's connection point on the x-axis.\n * @param offset New offset in the X axis.\n */\n\n\n withDefaultOffsetX(offset) {\n this._offsetX = offset;\n return this;\n }\n /**\n * Sets the default offset for the overlay's connection point on the y-axis.\n * @param offset New offset in the Y axis.\n */\n\n\n withDefaultOffsetY(offset) {\n this._offsetY = offset;\n return this;\n }\n /**\n * Configures that the position strategy should set a `transform-origin` on some elements\n * inside the overlay, depending on the current position that is being applied. This is\n * useful for the cases where the origin of an animation can change depending on the\n * alignment of the overlay.\n * @param selector CSS selector that will be used to find the target\n * elements onto which to set the transform origin.\n */\n\n\n withTransformOriginOn(selector) {\n this._transformOriginSelector = selector;\n return this;\n }\n /**\n * Gets the (x, y) coordinate of a connection point on the origin based on a relative position.\n */\n\n\n _getOriginPoint(originRect, pos) {\n let x;\n\n if (pos.originX == 'center') {\n // Note: when centering we should always use the `left`\n // offset, otherwise the position will be wrong in RTL.\n x = originRect.left + originRect.width / 2;\n } else {\n const startX = this._isRtl() ? originRect.right : originRect.left;\n const endX = this._isRtl() ? originRect.left : originRect.right;\n x = pos.originX == 'start' ? startX : endX;\n }\n\n let y;\n\n if (pos.originY == 'center') {\n y = originRect.top + originRect.height / 2;\n } else {\n y = pos.originY == 'top' ? originRect.top : originRect.bottom;\n }\n\n return {\n x,\n y\n };\n }\n /**\n * Gets the (x, y) coordinate of the top-left corner of the overlay given a given position and\n * origin point to which the overlay should be connected.\n */\n\n\n _getOverlayPoint(originPoint, overlayRect, pos) {\n // Calculate the (overlayStartX, overlayStartY), the start of the\n // potential overlay position relative to the origin point.\n let overlayStartX;\n\n if (pos.overlayX == 'center') {\n overlayStartX = -overlayRect.width / 2;\n } else if (pos.overlayX === 'start') {\n overlayStartX = this._isRtl() ? -overlayRect.width : 0;\n } else {\n overlayStartX = this._isRtl() ? 0 : -overlayRect.width;\n }\n\n let overlayStartY;\n\n if (pos.overlayY == 'center') {\n overlayStartY = -overlayRect.height / 2;\n } else {\n overlayStartY = pos.overlayY == 'top' ? 0 : -overlayRect.height;\n } // The (x, y) coordinates of the overlay.\n\n\n return {\n x: originPoint.x + overlayStartX,\n y: originPoint.y + overlayStartY\n };\n }\n /** Gets how well an overlay at the given point will fit within the viewport. */\n\n\n _getOverlayFit(point, rawOverlayRect, viewport, position) {\n // Round the overlay rect when comparing against the\n // viewport, because the viewport is always rounded.\n const overlay = getRoundedBoundingClientRect(rawOverlayRect);\n let {\n x,\n y\n } = point;\n\n let offsetX = this._getOffset(position, 'x');\n\n let offsetY = this._getOffset(position, 'y'); // Account for the offsets since they could push the overlay out of the viewport.\n\n\n if (offsetX) {\n x += offsetX;\n }\n\n if (offsetY) {\n y += offsetY;\n } // How much the overlay would overflow at this position, on each side.\n\n\n let leftOverflow = 0 - x;\n let rightOverflow = x + overlay.width - viewport.width;\n let topOverflow = 0 - y;\n let bottomOverflow = y + overlay.height - viewport.height; // Visible parts of the element on each axis.\n\n let visibleWidth = this._subtractOverflows(overlay.width, leftOverflow, rightOverflow);\n\n let visibleHeight = this._subtractOverflows(overlay.height, topOverflow, bottomOverflow);\n\n let visibleArea = visibleWidth * visibleHeight;\n return {\n visibleArea,\n isCompletelyWithinViewport: overlay.width * overlay.height === visibleArea,\n fitsInViewportVertically: visibleHeight === overlay.height,\n fitsInViewportHorizontally: visibleWidth == overlay.width\n };\n }\n /**\n * Whether the overlay can fit within the viewport when it may resize either its width or height.\n * @param fit How well the overlay fits in the viewport at some position.\n * @param point The (x, y) coordinates of the overlat at some position.\n * @param viewport The geometry of the viewport.\n */\n\n\n _canFitWithFlexibleDimensions(fit, point, viewport) {\n if (this._hasFlexibleDimensions) {\n const availableHeight = viewport.bottom - point.y;\n const availableWidth = viewport.right - point.x;\n const minHeight = getPixelValue(this._overlayRef.getConfig().minHeight);\n const minWidth = getPixelValue(this._overlayRef.getConfig().minWidth);\n const verticalFit = fit.fitsInViewportVertically || minHeight != null && minHeight <= availableHeight;\n const horizontalFit = fit.fitsInViewportHorizontally || minWidth != null && minWidth <= availableWidth;\n return verticalFit && horizontalFit;\n }\n\n return false;\n }\n /**\n * Gets the point at which the overlay can be \"pushed\" on-screen. If the overlay is larger than\n * the viewport, the top-left corner will be pushed on-screen (with overflow occuring on the\n * right and bottom).\n *\n * @param start Starting point from which the overlay is pushed.\n * @param overlay Dimensions of the overlay.\n * @param scrollPosition Current viewport scroll position.\n * @returns The point at which to position the overlay after pushing. This is effectively a new\n * originPoint.\n */\n\n\n _pushOverlayOnScreen(start, rawOverlayRect, scrollPosition) {\n // If the position is locked and we've pushed the overlay already, reuse the previous push\n // amount, rather than pushing it again. If we were to continue pushing, the element would\n // remain in the viewport, which goes against the expectations when position locking is enabled.\n if (this._previousPushAmount && this._positionLocked) {\n return {\n x: start.x + this._previousPushAmount.x,\n y: start.y + this._previousPushAmount.y\n };\n } // Round the overlay rect when comparing against the\n // viewport, because the viewport is always rounded.\n\n\n const overlay = getRoundedBoundingClientRect(rawOverlayRect);\n const viewport = this._viewportRect; // Determine how much the overlay goes outside the viewport on each\n // side, which we'll use to decide which direction to push it.\n\n const overflowRight = Math.max(start.x + overlay.width - viewport.width, 0);\n const overflowBottom = Math.max(start.y + overlay.height - viewport.height, 0);\n const overflowTop = Math.max(viewport.top - scrollPosition.top - start.y, 0);\n const overflowLeft = Math.max(viewport.left - scrollPosition.left - start.x, 0); // Amount by which to push the overlay in each axis such that it remains on-screen.\n\n let pushX = 0;\n let pushY = 0; // If the overlay fits completely within the bounds of the viewport, push it from whichever\n // direction is goes off-screen. Otherwise, push the top-left corner such that its in the\n // viewport and allow for the trailing end of the overlay to go out of bounds.\n\n if (overlay.width <= viewport.width) {\n pushX = overflowLeft || -overflowRight;\n } else {\n pushX = start.x < this._viewportMargin ? viewport.left - scrollPosition.left - start.x : 0;\n }\n\n if (overlay.height <= viewport.height) {\n pushY = overflowTop || -overflowBottom;\n } else {\n pushY = start.y < this._viewportMargin ? viewport.top - scrollPosition.top - start.y : 0;\n }\n\n this._previousPushAmount = {\n x: pushX,\n y: pushY\n };\n return {\n x: start.x + pushX,\n y: start.y + pushY\n };\n }\n /**\n * Applies a computed position to the overlay and emits a position change.\n * @param position The position preference\n * @param originPoint The point on the origin element where the overlay is connected.\n */\n\n\n _applyPosition(position, originPoint) {\n this._setTransformOrigin(position);\n\n this._setOverlayElementStyles(originPoint, position);\n\n this._setBoundingBoxStyles(originPoint, position);\n\n if (position.panelClass) {\n this._addPanelClasses(position.panelClass);\n } // Save the last connected position in case the position needs to be re-calculated.\n\n\n this._lastPosition = position; // Notify that the position has been changed along with its change properties.\n // We only emit if we've got any subscriptions, because the scroll visibility\n // calculcations can be somewhat expensive.\n\n if (this._positionChanges.observers.length) {\n const scrollableViewProperties = this._getScrollVisibility();\n\n const changeEvent = new ConnectedOverlayPositionChange(position, scrollableViewProperties);\n\n this._positionChanges.next(changeEvent);\n }\n\n this._isInitialRender = false;\n }\n /** Sets the transform origin based on the configured selector and the passed-in position. */\n\n\n _setTransformOrigin(position) {\n if (!this._transformOriginSelector) {\n return;\n }\n\n const elements = this._boundingBox.querySelectorAll(this._transformOriginSelector);\n\n let xOrigin;\n let yOrigin = position.overlayY;\n\n if (position.overlayX === 'center') {\n xOrigin = 'center';\n } else if (this._isRtl()) {\n xOrigin = position.overlayX === 'start' ? 'right' : 'left';\n } else {\n xOrigin = position.overlayX === 'start' ? 'left' : 'right';\n }\n\n for (let i = 0; i < elements.length; i++) {\n elements[i].style.transformOrigin = `${xOrigin} ${yOrigin}`;\n }\n }\n /**\n * Gets the position and size of the overlay's sizing container.\n *\n * This method does no measuring and applies no styles so that we can cheaply compute the\n * bounds for all positions and choose the best fit based on these results.\n */\n\n\n _calculateBoundingBoxRect(origin, position) {\n const viewport = this._viewportRect;\n\n const isRtl = this._isRtl();\n\n let height, top, bottom;\n\n if (position.overlayY === 'top') {\n // Overlay is opening \"downward\" and thus is bound by the bottom viewport edge.\n top = origin.y;\n height = viewport.height - top + this._viewportMargin;\n } else if (position.overlayY === 'bottom') {\n // Overlay is opening \"upward\" and thus is bound by the top viewport edge. We need to add\n // the viewport margin back in, because the viewport rect is narrowed down to remove the\n // margin, whereas the `origin` position is calculated based on its `ClientRect`.\n bottom = viewport.height - origin.y + this._viewportMargin * 2;\n height = viewport.height - bottom + this._viewportMargin;\n } else {\n // If neither top nor bottom, it means that the overlay is vertically centered on the\n // origin point. Note that we want the position relative to the viewport, rather than\n // the page, which is why we don't use something like `viewport.bottom - origin.y` and\n // `origin.y - viewport.top`.\n const smallestDistanceToViewportEdge = Math.min(viewport.bottom - origin.y + viewport.top, origin.y);\n const previousHeight = this._lastBoundingBoxSize.height;\n height = smallestDistanceToViewportEdge * 2;\n top = origin.y - smallestDistanceToViewportEdge;\n\n if (height > previousHeight && !this._isInitialRender && !this._growAfterOpen) {\n top = origin.y - previousHeight / 2;\n }\n } // The overlay is opening 'right-ward' (the content flows to the right).\n\n\n const isBoundedByRightViewportEdge = position.overlayX === 'start' && !isRtl || position.overlayX === 'end' && isRtl; // The overlay is opening 'left-ward' (the content flows to the left).\n\n const isBoundedByLeftViewportEdge = position.overlayX === 'end' && !isRtl || position.overlayX === 'start' && isRtl;\n let width, left, right;\n\n if (isBoundedByLeftViewportEdge) {\n right = viewport.width - origin.x + this._viewportMargin;\n width = origin.x - this._viewportMargin;\n } else if (isBoundedByRightViewportEdge) {\n left = origin.x;\n width = viewport.right - origin.x;\n } else {\n // If neither start nor end, it means that the overlay is horizontally centered on the\n // origin point. Note that we want the position relative to the viewport, rather than\n // the page, which is why we don't use something like `viewport.right - origin.x` and\n // `origin.x - viewport.left`.\n const smallestDistanceToViewportEdge = Math.min(viewport.right - origin.x + viewport.left, origin.x);\n const previousWidth = this._lastBoundingBoxSize.width;\n width = smallestDistanceToViewportEdge * 2;\n left = origin.x - smallestDistanceToViewportEdge;\n\n if (width > previousWidth && !this._isInitialRender && !this._growAfterOpen) {\n left = origin.x - previousWidth / 2;\n }\n }\n\n return {\n top: top,\n left: left,\n bottom: bottom,\n right: right,\n width,\n height\n };\n }\n /**\n * Sets the position and size of the overlay's sizing wrapper. The wrapper is positioned on the\n * origin's connection point and stetches to the bounds of the viewport.\n *\n * @param origin The point on the origin element where the overlay is connected.\n * @param position The position preference\n */\n\n\n _setBoundingBoxStyles(origin, position) {\n const boundingBoxRect = this._calculateBoundingBoxRect(origin, position); // It's weird if the overlay *grows* while scrolling, so we take the last size into account\n // when applying a new size.\n\n\n if (!this._isInitialRender && !this._growAfterOpen) {\n boundingBoxRect.height = Math.min(boundingBoxRect.height, this._lastBoundingBoxSize.height);\n boundingBoxRect.width = Math.min(boundingBoxRect.width, this._lastBoundingBoxSize.width);\n }\n\n const styles = {};\n\n if (this._hasExactPosition()) {\n styles.top = styles.left = '0';\n styles.bottom = styles.right = styles.maxHeight = styles.maxWidth = '';\n styles.width = styles.height = '100%';\n } else {\n const maxHeight = this._overlayRef.getConfig().maxHeight;\n\n const maxWidth = this._overlayRef.getConfig().maxWidth;\n\n styles.height = coerceCssPixelValue(boundingBoxRect.height);\n styles.top = coerceCssPixelValue(boundingBoxRect.top);\n styles.bottom = coerceCssPixelValue(boundingBoxRect.bottom);\n styles.width = coerceCssPixelValue(boundingBoxRect.width);\n styles.left = coerceCssPixelValue(boundingBoxRect.left);\n styles.right = coerceCssPixelValue(boundingBoxRect.right); // Push the pane content towards the proper direction.\n\n if (position.overlayX === 'center') {\n styles.alignItems = 'center';\n } else {\n styles.alignItems = position.overlayX === 'end' ? 'flex-end' : 'flex-start';\n }\n\n if (position.overlayY === 'center') {\n styles.justifyContent = 'center';\n } else {\n styles.justifyContent = position.overlayY === 'bottom' ? 'flex-end' : 'flex-start';\n }\n\n if (maxHeight) {\n styles.maxHeight = coerceCssPixelValue(maxHeight);\n }\n\n if (maxWidth) {\n styles.maxWidth = coerceCssPixelValue(maxWidth);\n }\n }\n\n this._lastBoundingBoxSize = boundingBoxRect;\n extendStyles(this._boundingBox.style, styles);\n }\n /** Resets the styles for the bounding box so that a new positioning can be computed. */\n\n\n _resetBoundingBoxStyles() {\n extendStyles(this._boundingBox.style, {\n top: '0',\n left: '0',\n right: '0',\n bottom: '0',\n height: '',\n width: '',\n alignItems: '',\n justifyContent: ''\n });\n }\n /** Resets the styles for the overlay pane so that a new positioning can be computed. */\n\n\n _resetOverlayElementStyles() {\n extendStyles(this._pane.style, {\n top: '',\n left: '',\n bottom: '',\n right: '',\n position: '',\n transform: ''\n });\n }\n /** Sets positioning styles to the overlay element. */\n\n\n _setOverlayElementStyles(originPoint, position) {\n const styles = {};\n\n const hasExactPosition = this._hasExactPosition();\n\n const hasFlexibleDimensions = this._hasFlexibleDimensions;\n\n const config = this._overlayRef.getConfig();\n\n if (hasExactPosition) {\n const scrollPosition = this._viewportRuler.getViewportScrollPosition();\n\n extendStyles(styles, this._getExactOverlayY(position, originPoint, scrollPosition));\n extendStyles(styles, this._getExactOverlayX(position, originPoint, scrollPosition));\n } else {\n styles.position = 'static';\n } // Use a transform to apply the offsets. We do this because the `center` positions rely on\n // being in the normal flex flow and setting a `top` / `left` at all will completely throw\n // off the position. We also can't use margins, because they won't have an effect in some\n // cases where the element doesn't have anything to \"push off of\". Finally, this works\n // better both with flexible and non-flexible positioning.\n\n\n let transformString = '';\n\n let offsetX = this._getOffset(position, 'x');\n\n let offsetY = this._getOffset(position, 'y');\n\n if (offsetX) {\n transformString += `translateX(${offsetX}px) `;\n }\n\n if (offsetY) {\n transformString += `translateY(${offsetY}px)`;\n }\n\n styles.transform = transformString.trim(); // If a maxWidth or maxHeight is specified on the overlay, we remove them. We do this because\n // we need these values to both be set to \"100%\" for the automatic flexible sizing to work.\n // The maxHeight and maxWidth are set on the boundingBox in order to enforce the constraint.\n // Note that this doesn't apply when we have an exact position, in which case we do want to\n // apply them because they'll be cleared from the bounding box.\n\n if (config.maxHeight) {\n if (hasExactPosition) {\n styles.maxHeight = coerceCssPixelValue(config.maxHeight);\n } else if (hasFlexibleDimensions) {\n styles.maxHeight = '';\n }\n }\n\n if (config.maxWidth) {\n if (hasExactPosition) {\n styles.maxWidth = coerceCssPixelValue(config.maxWidth);\n } else if (hasFlexibleDimensions) {\n styles.maxWidth = '';\n }\n }\n\n extendStyles(this._pane.style, styles);\n }\n /** Gets the exact top/bottom for the overlay when not using flexible sizing or when pushing. */\n\n\n _getExactOverlayY(position, originPoint, scrollPosition) {\n // Reset any existing styles. This is necessary in case the\n // preferred position has changed since the last `apply`.\n let styles = {\n top: '',\n bottom: ''\n };\n\n let overlayPoint = this._getOverlayPoint(originPoint, this._overlayRect, position);\n\n if (this._isPushed) {\n overlayPoint = this._pushOverlayOnScreen(overlayPoint, this._overlayRect, scrollPosition);\n }\n\n let virtualKeyboardOffset = this._overlayContainer.getContainerElement().getBoundingClientRect().top; // Normally this would be zero, however when the overlay is attached to an input (e.g. in an\n // autocomplete), mobile browsers will shift everything in order to put the input in the middle\n // of the screen and to make space for the virtual keyboard. We need to account for this offset,\n // otherwise our positioning will be thrown off.\n\n\n overlayPoint.y -= virtualKeyboardOffset; // We want to set either `top` or `bottom` based on whether the overlay wants to appear\n // above or below the origin and the direction in which the element will expand.\n\n if (position.overlayY === 'bottom') {\n // When using `bottom`, we adjust the y position such that it is the distance\n // from the bottom of the viewport rather than the top.\n const documentHeight = this._document.documentElement.clientHeight;\n styles.bottom = `${documentHeight - (overlayPoint.y + this._overlayRect.height)}px`;\n } else {\n styles.top = coerceCssPixelValue(overlayPoint.y);\n }\n\n return styles;\n }\n /** Gets the exact left/right for the overlay when not using flexible sizing or when pushing. */\n\n\n _getExactOverlayX(position, originPoint, scrollPosition) {\n // Reset any existing styles. This is necessary in case the preferred position has\n // changed since the last `apply`.\n let styles = {\n left: '',\n right: ''\n };\n\n let overlayPoint = this._getOverlayPoint(originPoint, this._overlayRect, position);\n\n if (this._isPushed) {\n overlayPoint = this._pushOverlayOnScreen(overlayPoint, this._overlayRect, scrollPosition);\n } // We want to set either `left` or `right` based on whether the overlay wants to appear \"before\"\n // or \"after\" the origin, which determines the direction in which the element will expand.\n // For the horizontal axis, the meaning of \"before\" and \"after\" change based on whether the\n // page is in RTL or LTR.\n\n\n let horizontalStyleProperty;\n\n if (this._isRtl()) {\n horizontalStyleProperty = position.overlayX === 'end' ? 'left' : 'right';\n } else {\n horizontalStyleProperty = position.overlayX === 'end' ? 'right' : 'left';\n } // When we're setting `right`, we adjust the x position such that it is the distance\n // from the right edge of the viewport rather than the left edge.\n\n\n if (horizontalStyleProperty === 'right') {\n const documentWidth = this._document.documentElement.clientWidth;\n styles.right = `${documentWidth - (overlayPoint.x + this._overlayRect.width)}px`;\n } else {\n styles.left = coerceCssPixelValue(overlayPoint.x);\n }\n\n return styles;\n }\n /**\n * Gets the view properties of the trigger and overlay, including whether they are clipped\n * or completely outside the view of any of the strategy's scrollables.\n */\n\n\n _getScrollVisibility() {\n // Note: needs fresh rects since the position could've changed.\n const originBounds = this._getOriginRect();\n\n const overlayBounds = this._pane.getBoundingClientRect(); // TODO(jelbourn): instead of needing all of the client rects for these scrolling containers\n // every time, we should be able to use the scrollTop of the containers if the size of those\n // containers hasn't changed.\n\n\n const scrollContainerBounds = this._scrollables.map(scrollable => {\n return scrollable.getElementRef().nativeElement.getBoundingClientRect();\n });\n\n return {\n isOriginClipped: isElementClippedByScrolling(originBounds, scrollContainerBounds),\n isOriginOutsideView: isElementScrolledOutsideView(originBounds, scrollContainerBounds),\n isOverlayClipped: isElementClippedByScrolling(overlayBounds, scrollContainerBounds),\n isOverlayOutsideView: isElementScrolledOutsideView(overlayBounds, scrollContainerBounds)\n };\n }\n /** Subtracts the amount that an element is overflowing on an axis from its length. */\n\n\n _subtractOverflows(length, ...overflows) {\n return overflows.reduce((currentValue, currentOverflow) => {\n return currentValue - Math.max(currentOverflow, 0);\n }, length);\n }\n /** Narrows the given viewport rect by the current _viewportMargin. */\n\n\n _getNarrowedViewportRect() {\n // We recalculate the viewport rect here ourselves, rather than using the ViewportRuler,\n // because we want to use the `clientWidth` and `clientHeight` as the base. The difference\n // being that the client properties don't include the scrollbar, as opposed to `innerWidth`\n // and `innerHeight` that do. This is necessary, because the overlay container uses\n // 100% `width` and `height` which don't include the scrollbar either.\n const width = this._document.documentElement.clientWidth;\n const height = this._document.documentElement.clientHeight;\n\n const scrollPosition = this._viewportRuler.getViewportScrollPosition();\n\n return {\n top: scrollPosition.top + this._viewportMargin,\n left: scrollPosition.left + this._viewportMargin,\n right: scrollPosition.left + width - this._viewportMargin,\n bottom: scrollPosition.top + height - this._viewportMargin,\n width: width - 2 * this._viewportMargin,\n height: height - 2 * this._viewportMargin\n };\n }\n /** Whether the we're dealing with an RTL context */\n\n\n _isRtl() {\n return this._overlayRef.getDirection() === 'rtl';\n }\n /** Determines whether the overlay uses exact or flexible positioning. */\n\n\n _hasExactPosition() {\n return !this._hasFlexibleDimensions || this._isPushed;\n }\n /** Retrieves the offset of a position along the x or y axis. */\n\n\n _getOffset(position, axis) {\n if (axis === 'x') {\n // We don't do something like `position['offset' + axis]` in\n // order to avoid breking minifiers that rename properties.\n return position.offsetX == null ? this._offsetX : position.offsetX;\n }\n\n return position.offsetY == null ? this._offsetY : position.offsetY;\n }\n /** Validates that the current position match the expected values. */\n\n\n _validatePositions() {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (!this._preferredPositions.length) {\n throw Error('FlexibleConnectedPositionStrategy: At least one position is required.');\n } // TODO(crisbeto): remove these once Angular's template type\n // checking is advanced enough to catch these cases.\n\n\n this._preferredPositions.forEach(pair => {\n validateHorizontalPosition('originX', pair.originX);\n validateVerticalPosition('originY', pair.originY);\n validateHorizontalPosition('overlayX', pair.overlayX);\n validateVerticalPosition('overlayY', pair.overlayY);\n });\n }\n }\n /** Adds a single CSS class or an array of classes on the overlay panel. */\n\n\n _addPanelClasses(cssClasses) {\n if (this._pane) {\n coerceArray(cssClasses).forEach(cssClass => {\n if (cssClass !== '' && this._appliedPanelClasses.indexOf(cssClass) === -1) {\n this._appliedPanelClasses.push(cssClass);\n\n this._pane.classList.add(cssClass);\n }\n });\n }\n }\n /** Clears the classes that the position strategy has applied from the overlay panel. */\n\n\n _clearPanelClasses() {\n if (this._pane) {\n this._appliedPanelClasses.forEach(cssClass => {\n this._pane.classList.remove(cssClass);\n });\n\n this._appliedPanelClasses = [];\n }\n }\n /** Returns the ClientRect of the current origin. */\n\n\n _getOriginRect() {\n const origin = this._origin;\n\n if (origin instanceof ElementRef) {\n return origin.nativeElement.getBoundingClientRect();\n } // Check for Element so SVG elements are also supported.\n\n\n if (origin instanceof Element) {\n return origin.getBoundingClientRect();\n }\n\n const width = origin.width || 0;\n const height = origin.height || 0; // If the origin is a point, return a client rect as if it was a 0x0 element at the point.\n\n return {\n top: origin.y,\n bottom: origin.y + height,\n left: origin.x,\n right: origin.x + width,\n height,\n width\n };\n }\n\n}\n/** Shallow-extends a stylesheet object with another stylesheet object. */\n\n\nfunction extendStyles(destination, source) {\n for (let key in source) {\n if (source.hasOwnProperty(key)) {\n destination[key] = source[key];\n }\n }\n\n return destination;\n}\n/**\n * Extracts the pixel value as a number from a value, if it's a number\n * or a CSS pixel string (e.g. `1337px`). Otherwise returns null.\n */\n\n\nfunction getPixelValue(input) {\n if (typeof input !== 'number' && input != null) {\n const [value, units] = input.split(cssUnitPattern);\n return !units || units === 'px' ? parseFloat(value) : null;\n }\n\n return input || null;\n}\n/**\n * Gets a version of an element's bounding `ClientRect` where all the values are rounded down to\n * the nearest pixel. This allows us to account for the cases where there may be sub-pixel\n * deviations in the `ClientRect` returned by the browser (e.g. when zoomed in with a percentage\n * size, see #21350).\n */\n\n\nfunction getRoundedBoundingClientRect(clientRect) {\n return {\n top: Math.floor(clientRect.top),\n right: Math.floor(clientRect.right),\n bottom: Math.floor(clientRect.bottom),\n left: Math.floor(clientRect.left),\n width: Math.floor(clientRect.width),\n height: Math.floor(clientRect.height)\n };\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Class to be added to the overlay pane wrapper. */\n\n\nconst wrapperClass = 'cdk-global-overlay-wrapper';\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * explicit position relative to the browser's viewport. We use flexbox, instead of\n * transforms, in order to avoid issues with subpixel rendering which can cause the\n * element to become blurry.\n */\n\nclass GlobalPositionStrategy {\n constructor() {\n this._cssPosition = 'static';\n this._topOffset = '';\n this._bottomOffset = '';\n this._leftOffset = '';\n this._rightOffset = '';\n this._alignItems = '';\n this._justifyContent = '';\n this._width = '';\n this._height = '';\n }\n\n attach(overlayRef) {\n const config = overlayRef.getConfig();\n this._overlayRef = overlayRef;\n\n if (this._width && !config.width) {\n overlayRef.updateSize({\n width: this._width\n });\n }\n\n if (this._height && !config.height) {\n overlayRef.updateSize({\n height: this._height\n });\n }\n\n overlayRef.hostElement.classList.add(wrapperClass);\n this._isDisposed = false;\n }\n /**\n * Sets the top position of the overlay. Clears any previously set vertical position.\n * @param value New top offset.\n */\n\n\n top(value = '') {\n this._bottomOffset = '';\n this._topOffset = value;\n this._alignItems = 'flex-start';\n return this;\n }\n /**\n * Sets the left position of the overlay. Clears any previously set horizontal position.\n * @param value New left offset.\n */\n\n\n left(value = '') {\n this._rightOffset = '';\n this._leftOffset = value;\n this._justifyContent = 'flex-start';\n return this;\n }\n /**\n * Sets the bottom position of the overlay. Clears any previously set vertical position.\n * @param value New bottom offset.\n */\n\n\n bottom(value = '') {\n this._topOffset = '';\n this._bottomOffset = value;\n this._alignItems = 'flex-end';\n return this;\n }\n /**\n * Sets the right position of the overlay. Clears any previously set horizontal position.\n * @param value New right offset.\n */\n\n\n right(value = '') {\n this._leftOffset = '';\n this._rightOffset = value;\n this._justifyContent = 'flex-end';\n return this;\n }\n /**\n * Sets the overlay width and clears any previously set width.\n * @param value New width for the overlay\n * @deprecated Pass the `width` through the `OverlayConfig`.\n * @breaking-change 8.0.0\n */\n\n\n width(value = '') {\n if (this._overlayRef) {\n this._overlayRef.updateSize({\n width: value\n });\n } else {\n this._width = value;\n }\n\n return this;\n }\n /**\n * Sets the overlay height and clears any previously set height.\n * @param value New height for the overlay\n * @deprecated Pass the `height` through the `OverlayConfig`.\n * @breaking-change 8.0.0\n */\n\n\n height(value = '') {\n if (this._overlayRef) {\n this._overlayRef.updateSize({\n height: value\n });\n } else {\n this._height = value;\n }\n\n return this;\n }\n /**\n * Centers the overlay horizontally with an optional offset.\n * Clears any previously set horizontal position.\n *\n * @param offset Overlay offset from the horizontal center.\n */\n\n\n centerHorizontally(offset = '') {\n this.left(offset);\n this._justifyContent = 'center';\n return this;\n }\n /**\n * Centers the overlay vertically with an optional offset.\n * Clears any previously set vertical position.\n *\n * @param offset Overlay offset from the vertical center.\n */\n\n\n centerVertically(offset = '') {\n this.top(offset);\n this._alignItems = 'center';\n return this;\n }\n /**\n * Apply the position to the element.\n * @docs-private\n */\n\n\n apply() {\n // Since the overlay ref applies the strategy asynchronously, it could\n // have been disposed before it ends up being applied. If that is the\n // case, we shouldn't do anything.\n if (!this._overlayRef || !this._overlayRef.hasAttached()) {\n return;\n }\n\n const styles = this._overlayRef.overlayElement.style;\n const parentStyles = this._overlayRef.hostElement.style;\n\n const config = this._overlayRef.getConfig();\n\n const {\n width,\n height,\n maxWidth,\n maxHeight\n } = config;\n const shouldBeFlushHorizontally = (width === '100%' || width === '100vw') && (!maxWidth || maxWidth === '100%' || maxWidth === '100vw');\n const shouldBeFlushVertically = (height === '100%' || height === '100vh') && (!maxHeight || maxHeight === '100%' || maxHeight === '100vh');\n styles.position = this._cssPosition;\n styles.marginLeft = shouldBeFlushHorizontally ? '0' : this._leftOffset;\n styles.marginTop = shouldBeFlushVertically ? '0' : this._topOffset;\n styles.marginBottom = this._bottomOffset;\n styles.marginRight = this._rightOffset;\n\n if (shouldBeFlushHorizontally) {\n parentStyles.justifyContent = 'flex-start';\n } else if (this._justifyContent === 'center') {\n parentStyles.justifyContent = 'center';\n } else if (this._overlayRef.getConfig().direction === 'rtl') {\n // In RTL the browser will invert `flex-start` and `flex-end` automatically, but we\n // don't want that because our positioning is explicitly `left` and `right`, hence\n // why we do another inversion to ensure that the overlay stays in the same position.\n // TODO: reconsider this if we add `start` and `end` methods.\n if (this._justifyContent === 'flex-start') {\n parentStyles.justifyContent = 'flex-end';\n } else if (this._justifyContent === 'flex-end') {\n parentStyles.justifyContent = 'flex-start';\n }\n } else {\n parentStyles.justifyContent = this._justifyContent;\n }\n\n parentStyles.alignItems = shouldBeFlushVertically ? 'flex-start' : this._alignItems;\n }\n /**\n * Cleans up the DOM changes from the position strategy.\n * @docs-private\n */\n\n\n dispose() {\n if (this._isDisposed || !this._overlayRef) {\n return;\n }\n\n const styles = this._overlayRef.overlayElement.style;\n const parent = this._overlayRef.hostElement;\n const parentStyles = parent.style;\n parent.classList.remove(wrapperClass);\n parentStyles.justifyContent = parentStyles.alignItems = styles.marginTop = styles.marginBottom = styles.marginLeft = styles.marginRight = styles.position = '';\n this._overlayRef = null;\n this._isDisposed = true;\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Builder for overlay position strategy. */\n\n\nclass OverlayPositionBuilder {\n constructor(_viewportRuler, _document, _platform, _overlayContainer) {\n this._viewportRuler = _viewportRuler;\n this._document = _document;\n this._platform = _platform;\n this._overlayContainer = _overlayContainer;\n }\n /**\n * Creates a global position strategy.\n */\n\n\n global() {\n return new GlobalPositionStrategy();\n }\n /**\n * Creates a flexible position strategy.\n * @param origin Origin relative to which to position the overlay.\n */\n\n\n flexibleConnectedTo(origin) {\n return new FlexibleConnectedPositionStrategy(origin, this._viewportRuler, this._document, this._platform, this._overlayContainer);\n }\n\n}\n\nOverlayPositionBuilder.ɵfac = function OverlayPositionBuilder_Factory(t) {\n return new (t || OverlayPositionBuilder)(i0.ɵɵinject(i1.ViewportRuler), i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(i1$1.Platform), i0.ɵɵinject(OverlayContainer));\n};\n\nOverlayPositionBuilder.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: OverlayPositionBuilder,\n factory: OverlayPositionBuilder.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(OverlayPositionBuilder, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.ViewportRuler\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: i1$1.Platform\n }, {\n type: OverlayContainer\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Next overlay unique ID. */\n\n\nlet nextUniqueId = 0; // Note that Overlay is *not* scoped to the app root because of the ComponentFactoryResolver\n// which needs to be different depending on where OverlayModule is imported.\n\n/**\n * Service to create Overlays. Overlays are dynamically added pieces of floating UI, meant to be\n * used as a low-level building block for other components. Dialogs, tooltips, menus,\n * selects, etc. can all be built using overlays. The service should primarily be used by authors\n * of re-usable components rather than developers building end-user applications.\n *\n * An overlay *is* a PortalOutlet, so any kind of Portal can be loaded into one.\n */\n\nclass Overlay {\n constructor(\n /** Scrolling strategies that can be used when creating an overlay. */\n scrollStrategies, _overlayContainer, _componentFactoryResolver, _positionBuilder, _keyboardDispatcher, _injector, _ngZone, _document, _directionality, _location, _outsideClickDispatcher) {\n this.scrollStrategies = scrollStrategies;\n this._overlayContainer = _overlayContainer;\n this._componentFactoryResolver = _componentFactoryResolver;\n this._positionBuilder = _positionBuilder;\n this._keyboardDispatcher = _keyboardDispatcher;\n this._injector = _injector;\n this._ngZone = _ngZone;\n this._document = _document;\n this._directionality = _directionality;\n this._location = _location;\n this._outsideClickDispatcher = _outsideClickDispatcher;\n }\n /**\n * Creates an overlay.\n * @param config Configuration applied to the overlay.\n * @returns Reference to the created overlay.\n */\n\n\n create(config) {\n const host = this._createHostElement();\n\n const pane = this._createPaneElement(host);\n\n const portalOutlet = this._createPortalOutlet(pane);\n\n const overlayConfig = new OverlayConfig(config);\n overlayConfig.direction = overlayConfig.direction || this._directionality.value;\n return new OverlayRef(portalOutlet, host, pane, overlayConfig, this._ngZone, this._keyboardDispatcher, this._document, this._location, this._outsideClickDispatcher);\n }\n /**\n * Gets a position builder that can be used, via fluent API,\n * to construct and configure a position strategy.\n * @returns An overlay position builder.\n */\n\n\n position() {\n return this._positionBuilder;\n }\n /**\n * Creates the DOM element for an overlay and appends it to the overlay container.\n * @returns Newly-created pane element\n */\n\n\n _createPaneElement(host) {\n const pane = this._document.createElement('div');\n\n pane.id = `cdk-overlay-${nextUniqueId++}`;\n pane.classList.add('cdk-overlay-pane');\n host.appendChild(pane);\n return pane;\n }\n /**\n * Creates the host element that wraps around an overlay\n * and can be used for advanced positioning.\n * @returns Newly-create host element.\n */\n\n\n _createHostElement() {\n const host = this._document.createElement('div');\n\n this._overlayContainer.getContainerElement().appendChild(host);\n\n return host;\n }\n /**\n * Create a DomPortalOutlet into which the overlay content can be loaded.\n * @param pane The DOM element to turn into a portal outlet.\n * @returns A portal outlet for the given DOM element.\n */\n\n\n _createPortalOutlet(pane) {\n // We have to resolve the ApplicationRef later in order to allow people\n // to use overlay-based providers during app initialization.\n if (!this._appRef) {\n this._appRef = this._injector.get(ApplicationRef);\n }\n\n return new DomPortalOutlet(pane, this._componentFactoryResolver, this._appRef, this._injector, this._document);\n }\n\n}\n\nOverlay.ɵfac = function Overlay_Factory(t) {\n return new (t || Overlay)(i0.ɵɵinject(ScrollStrategyOptions), i0.ɵɵinject(OverlayContainer), i0.ɵɵinject(i0.ComponentFactoryResolver), i0.ɵɵinject(OverlayPositionBuilder), i0.ɵɵinject(OverlayKeyboardDispatcher), i0.ɵɵinject(i0.Injector), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(i5.Directionality), i0.ɵɵinject(i6.Location), i0.ɵɵinject(OverlayOutsideClickDispatcher));\n};\n\nOverlay.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: Overlay,\n factory: Overlay.ɵfac\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Overlay, [{\n type: Injectable\n }], function () {\n return [{\n type: ScrollStrategyOptions\n }, {\n type: OverlayContainer\n }, {\n type: i0.ComponentFactoryResolver\n }, {\n type: OverlayPositionBuilder\n }, {\n type: OverlayKeyboardDispatcher\n }, {\n type: i0.Injector\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: i5.Directionality\n }, {\n type: i6.Location\n }, {\n type: OverlayOutsideClickDispatcher\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Default set of positions for the overlay. Follows the behavior of a dropdown. */\n\n\nconst defaultPositionList = [{\n originX: 'start',\n originY: 'bottom',\n overlayX: 'start',\n overlayY: 'top'\n}, {\n originX: 'start',\n originY: 'top',\n overlayX: 'start',\n overlayY: 'bottom'\n}, {\n originX: 'end',\n originY: 'top',\n overlayX: 'end',\n overlayY: 'bottom'\n}, {\n originX: 'end',\n originY: 'bottom',\n overlayX: 'end',\n overlayY: 'top'\n}];\n/** Injection token that determines the scroll handling while the connected overlay is open. */\n\nconst CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY = new InjectionToken('cdk-connected-overlay-scroll-strategy');\n/**\n * Directive applied to an element to make it usable as an origin for an Overlay using a\n * ConnectedPositionStrategy.\n */\n\nclass CdkOverlayOrigin {\n constructor(\n /** Reference to the element on which the directive is applied. */\n elementRef) {\n this.elementRef = elementRef;\n }\n\n}\n\nCdkOverlayOrigin.ɵfac = function CdkOverlayOrigin_Factory(t) {\n return new (t || CdkOverlayOrigin)(i0.ɵɵdirectiveInject(i0.ElementRef));\n};\n\nCdkOverlayOrigin.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkOverlayOrigin,\n selectors: [[\"\", \"cdk-overlay-origin\", \"\"], [\"\", \"overlay-origin\", \"\"], [\"\", \"cdkOverlayOrigin\", \"\"]],\n exportAs: [\"cdkOverlayOrigin\"]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkOverlayOrigin, [{\n type: Directive,\n args: [{\n selector: '[cdk-overlay-origin], [overlay-origin], [cdkOverlayOrigin]',\n exportAs: 'cdkOverlayOrigin'\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }];\n }, null);\n})();\n/**\n * Directive to facilitate declarative creation of an\n * Overlay using a FlexibleConnectedPositionStrategy.\n */\n\n\nclass CdkConnectedOverlay {\n // TODO(jelbourn): inputs for size, scroll behavior, animation, etc.\n constructor(_overlay, templateRef, viewContainerRef, scrollStrategyFactory, _dir) {\n this._overlay = _overlay;\n this._dir = _dir;\n this._hasBackdrop = false;\n this._lockPosition = false;\n this._growAfterOpen = false;\n this._flexibleDimensions = false;\n this._push = false;\n this._backdropSubscription = Subscription.EMPTY;\n this._attachSubscription = Subscription.EMPTY;\n this._detachSubscription = Subscription.EMPTY;\n this._positionSubscription = Subscription.EMPTY;\n /** Margin between the overlay and the viewport edges. */\n\n this.viewportMargin = 0;\n /** Whether the overlay is open. */\n\n this.open = false;\n /** Whether the overlay can be closed by user interaction. */\n\n this.disableClose = false;\n /** Event emitted when the backdrop is clicked. */\n\n this.backdropClick = new EventEmitter();\n /** Event emitted when the position has changed. */\n\n this.positionChange = new EventEmitter();\n /** Event emitted when the overlay has been attached. */\n\n this.attach = new EventEmitter();\n /** Event emitted when the overlay has been detached. */\n\n this.detach = new EventEmitter();\n /** Emits when there are keyboard events that are targeted at the overlay. */\n\n this.overlayKeydown = new EventEmitter();\n /** Emits when there are mouse outside click events that are targeted at the overlay. */\n\n this.overlayOutsideClick = new EventEmitter();\n this._templatePortal = new TemplatePortal(templateRef, viewContainerRef);\n this._scrollStrategyFactory = scrollStrategyFactory;\n this.scrollStrategy = this._scrollStrategyFactory();\n }\n /** The offset in pixels for the overlay connection point on the x-axis */\n\n\n get offsetX() {\n return this._offsetX;\n }\n\n set offsetX(offsetX) {\n this._offsetX = offsetX;\n\n if (this._position) {\n this._updatePositionStrategy(this._position);\n }\n }\n /** The offset in pixels for the overlay connection point on the y-axis */\n\n\n get offsetY() {\n return this._offsetY;\n }\n\n set offsetY(offsetY) {\n this._offsetY = offsetY;\n\n if (this._position) {\n this._updatePositionStrategy(this._position);\n }\n }\n /** Whether or not the overlay should attach a backdrop. */\n\n\n get hasBackdrop() {\n return this._hasBackdrop;\n }\n\n set hasBackdrop(value) {\n this._hasBackdrop = coerceBooleanProperty(value);\n }\n /** Whether or not the overlay should be locked when scrolling. */\n\n\n get lockPosition() {\n return this._lockPosition;\n }\n\n set lockPosition(value) {\n this._lockPosition = coerceBooleanProperty(value);\n }\n /** Whether the overlay's width and height can be constrained to fit within the viewport. */\n\n\n get flexibleDimensions() {\n return this._flexibleDimensions;\n }\n\n set flexibleDimensions(value) {\n this._flexibleDimensions = coerceBooleanProperty(value);\n }\n /** Whether the overlay can grow after the initial open when flexible positioning is turned on. */\n\n\n get growAfterOpen() {\n return this._growAfterOpen;\n }\n\n set growAfterOpen(value) {\n this._growAfterOpen = coerceBooleanProperty(value);\n }\n /** Whether the overlay can be pushed on-screen if none of the provided positions fit. */\n\n\n get push() {\n return this._push;\n }\n\n set push(value) {\n this._push = coerceBooleanProperty(value);\n }\n /** The associated overlay reference. */\n\n\n get overlayRef() {\n return this._overlayRef;\n }\n /** The element's layout direction. */\n\n\n get dir() {\n return this._dir ? this._dir.value : 'ltr';\n }\n\n ngOnDestroy() {\n this._attachSubscription.unsubscribe();\n\n this._detachSubscription.unsubscribe();\n\n this._backdropSubscription.unsubscribe();\n\n this._positionSubscription.unsubscribe();\n\n if (this._overlayRef) {\n this._overlayRef.dispose();\n }\n }\n\n ngOnChanges(changes) {\n if (this._position) {\n this._updatePositionStrategy(this._position);\n\n this._overlayRef.updateSize({\n width: this.width,\n minWidth: this.minWidth,\n height: this.height,\n minHeight: this.minHeight\n });\n\n if (changes['origin'] && this.open) {\n this._position.apply();\n }\n }\n\n if (changes['open']) {\n this.open ? this._attachOverlay() : this._detachOverlay();\n }\n }\n /** Creates an overlay */\n\n\n _createOverlay() {\n if (!this.positions || !this.positions.length) {\n this.positions = defaultPositionList;\n }\n\n const overlayRef = this._overlayRef = this._overlay.create(this._buildConfig());\n\n this._attachSubscription = overlayRef.attachments().subscribe(() => this.attach.emit());\n this._detachSubscription = overlayRef.detachments().subscribe(() => this.detach.emit());\n overlayRef.keydownEvents().subscribe(event => {\n this.overlayKeydown.next(event);\n\n if (event.keyCode === ESCAPE && !this.disableClose && !hasModifierKey(event)) {\n event.preventDefault();\n\n this._detachOverlay();\n }\n });\n\n this._overlayRef.outsidePointerEvents().subscribe(event => {\n this.overlayOutsideClick.next(event);\n });\n }\n /** Builds the overlay config based on the directive's inputs */\n\n\n _buildConfig() {\n const positionStrategy = this._position = this.positionStrategy || this._createPositionStrategy();\n\n const overlayConfig = new OverlayConfig({\n direction: this._dir,\n positionStrategy,\n scrollStrategy: this.scrollStrategy,\n hasBackdrop: this.hasBackdrop\n });\n\n if (this.width || this.width === 0) {\n overlayConfig.width = this.width;\n }\n\n if (this.height || this.height === 0) {\n overlayConfig.height = this.height;\n }\n\n if (this.minWidth || this.minWidth === 0) {\n overlayConfig.minWidth = this.minWidth;\n }\n\n if (this.minHeight || this.minHeight === 0) {\n overlayConfig.minHeight = this.minHeight;\n }\n\n if (this.backdropClass) {\n overlayConfig.backdropClass = this.backdropClass;\n }\n\n if (this.panelClass) {\n overlayConfig.panelClass = this.panelClass;\n }\n\n return overlayConfig;\n }\n /** Updates the state of a position strategy, based on the values of the directive inputs. */\n\n\n _updatePositionStrategy(positionStrategy) {\n const positions = this.positions.map(currentPosition => ({\n originX: currentPosition.originX,\n originY: currentPosition.originY,\n overlayX: currentPosition.overlayX,\n overlayY: currentPosition.overlayY,\n offsetX: currentPosition.offsetX || this.offsetX,\n offsetY: currentPosition.offsetY || this.offsetY,\n panelClass: currentPosition.panelClass || undefined\n }));\n return positionStrategy.setOrigin(this._getFlexibleConnectedPositionStrategyOrigin()).withPositions(positions).withFlexibleDimensions(this.flexibleDimensions).withPush(this.push).withGrowAfterOpen(this.growAfterOpen).withViewportMargin(this.viewportMargin).withLockedPosition(this.lockPosition).withTransformOriginOn(this.transformOriginSelector);\n }\n /** Returns the position strategy of the overlay to be set on the overlay config */\n\n\n _createPositionStrategy() {\n const strategy = this._overlay.position().flexibleConnectedTo(this._getFlexibleConnectedPositionStrategyOrigin());\n\n this._updatePositionStrategy(strategy);\n\n return strategy;\n }\n\n _getFlexibleConnectedPositionStrategyOrigin() {\n if (this.origin instanceof CdkOverlayOrigin) {\n return this.origin.elementRef;\n } else {\n return this.origin;\n }\n }\n /** Attaches the overlay and subscribes to backdrop clicks if backdrop exists */\n\n\n _attachOverlay() {\n if (!this._overlayRef) {\n this._createOverlay();\n } else {\n // Update the overlay size, in case the directive's inputs have changed\n this._overlayRef.getConfig().hasBackdrop = this.hasBackdrop;\n }\n\n if (!this._overlayRef.hasAttached()) {\n this._overlayRef.attach(this._templatePortal);\n }\n\n if (this.hasBackdrop) {\n this._backdropSubscription = this._overlayRef.backdropClick().subscribe(event => {\n this.backdropClick.emit(event);\n });\n } else {\n this._backdropSubscription.unsubscribe();\n }\n\n this._positionSubscription.unsubscribe(); // Only subscribe to `positionChanges` if requested, because putting\n // together all the information for it can be expensive.\n\n\n if (this.positionChange.observers.length > 0) {\n this._positionSubscription = this._position.positionChanges.pipe(takeWhile(() => this.positionChange.observers.length > 0)).subscribe(position => {\n this.positionChange.emit(position);\n\n if (this.positionChange.observers.length === 0) {\n this._positionSubscription.unsubscribe();\n }\n });\n }\n }\n /** Detaches the overlay and unsubscribes to backdrop clicks if backdrop exists */\n\n\n _detachOverlay() {\n if (this._overlayRef) {\n this._overlayRef.detach();\n }\n\n this._backdropSubscription.unsubscribe();\n\n this._positionSubscription.unsubscribe();\n }\n\n}\n\nCdkConnectedOverlay.ɵfac = function CdkConnectedOverlay_Factory(t) {\n return new (t || CdkConnectedOverlay)(i0.ɵɵdirectiveInject(Overlay), i0.ɵɵdirectiveInject(i0.TemplateRef), i0.ɵɵdirectiveInject(i0.ViewContainerRef), i0.ɵɵdirectiveInject(CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY), i0.ɵɵdirectiveInject(i5.Directionality, 8));\n};\n\nCdkConnectedOverlay.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkConnectedOverlay,\n selectors: [[\"\", \"cdk-connected-overlay\", \"\"], [\"\", \"connected-overlay\", \"\"], [\"\", \"cdkConnectedOverlay\", \"\"]],\n inputs: {\n origin: [\"cdkConnectedOverlayOrigin\", \"origin\"],\n positions: [\"cdkConnectedOverlayPositions\", \"positions\"],\n positionStrategy: [\"cdkConnectedOverlayPositionStrategy\", \"positionStrategy\"],\n offsetX: [\"cdkConnectedOverlayOffsetX\", \"offsetX\"],\n offsetY: [\"cdkConnectedOverlayOffsetY\", \"offsetY\"],\n width: [\"cdkConnectedOverlayWidth\", \"width\"],\n height: [\"cdkConnectedOverlayHeight\", \"height\"],\n minWidth: [\"cdkConnectedOverlayMinWidth\", \"minWidth\"],\n minHeight: [\"cdkConnectedOverlayMinHeight\", \"minHeight\"],\n backdropClass: [\"cdkConnectedOverlayBackdropClass\", \"backdropClass\"],\n panelClass: [\"cdkConnectedOverlayPanelClass\", \"panelClass\"],\n viewportMargin: [\"cdkConnectedOverlayViewportMargin\", \"viewportMargin\"],\n scrollStrategy: [\"cdkConnectedOverlayScrollStrategy\", \"scrollStrategy\"],\n open: [\"cdkConnectedOverlayOpen\", \"open\"],\n disableClose: [\"cdkConnectedOverlayDisableClose\", \"disableClose\"],\n transformOriginSelector: [\"cdkConnectedOverlayTransformOriginOn\", \"transformOriginSelector\"],\n hasBackdrop: [\"cdkConnectedOverlayHasBackdrop\", \"hasBackdrop\"],\n lockPosition: [\"cdkConnectedOverlayLockPosition\", \"lockPosition\"],\n flexibleDimensions: [\"cdkConnectedOverlayFlexibleDimensions\", \"flexibleDimensions\"],\n growAfterOpen: [\"cdkConnectedOverlayGrowAfterOpen\", \"growAfterOpen\"],\n push: [\"cdkConnectedOverlayPush\", \"push\"]\n },\n outputs: {\n backdropClick: \"backdropClick\",\n positionChange: \"positionChange\",\n attach: \"attach\",\n detach: \"detach\",\n overlayKeydown: \"overlayKeydown\",\n overlayOutsideClick: \"overlayOutsideClick\"\n },\n exportAs: [\"cdkConnectedOverlay\"],\n features: [i0.ɵɵNgOnChangesFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkConnectedOverlay, [{\n type: Directive,\n args: [{\n selector: '[cdk-connected-overlay], [connected-overlay], [cdkConnectedOverlay]',\n exportAs: 'cdkConnectedOverlay'\n }]\n }], function () {\n return [{\n type: Overlay\n }, {\n type: i0.TemplateRef\n }, {\n type: i0.ViewContainerRef\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY]\n }]\n }, {\n type: i5.Directionality,\n decorators: [{\n type: Optional\n }]\n }];\n }, {\n origin: [{\n type: Input,\n args: ['cdkConnectedOverlayOrigin']\n }],\n positions: [{\n type: Input,\n args: ['cdkConnectedOverlayPositions']\n }],\n positionStrategy: [{\n type: Input,\n args: ['cdkConnectedOverlayPositionStrategy']\n }],\n offsetX: [{\n type: Input,\n args: ['cdkConnectedOverlayOffsetX']\n }],\n offsetY: [{\n type: Input,\n args: ['cdkConnectedOverlayOffsetY']\n }],\n width: [{\n type: Input,\n args: ['cdkConnectedOverlayWidth']\n }],\n height: [{\n type: Input,\n args: ['cdkConnectedOverlayHeight']\n }],\n minWidth: [{\n type: Input,\n args: ['cdkConnectedOverlayMinWidth']\n }],\n minHeight: [{\n type: Input,\n args: ['cdkConnectedOverlayMinHeight']\n }],\n backdropClass: [{\n type: Input,\n args: ['cdkConnectedOverlayBackdropClass']\n }],\n panelClass: [{\n type: Input,\n args: ['cdkConnectedOverlayPanelClass']\n }],\n viewportMargin: [{\n type: Input,\n args: ['cdkConnectedOverlayViewportMargin']\n }],\n scrollStrategy: [{\n type: Input,\n args: ['cdkConnectedOverlayScrollStrategy']\n }],\n open: [{\n type: Input,\n args: ['cdkConnectedOverlayOpen']\n }],\n disableClose: [{\n type: Input,\n args: ['cdkConnectedOverlayDisableClose']\n }],\n transformOriginSelector: [{\n type: Input,\n args: ['cdkConnectedOverlayTransformOriginOn']\n }],\n hasBackdrop: [{\n type: Input,\n args: ['cdkConnectedOverlayHasBackdrop']\n }],\n lockPosition: [{\n type: Input,\n args: ['cdkConnectedOverlayLockPosition']\n }],\n flexibleDimensions: [{\n type: Input,\n args: ['cdkConnectedOverlayFlexibleDimensions']\n }],\n growAfterOpen: [{\n type: Input,\n args: ['cdkConnectedOverlayGrowAfterOpen']\n }],\n push: [{\n type: Input,\n args: ['cdkConnectedOverlayPush']\n }],\n backdropClick: [{\n type: Output\n }],\n positionChange: [{\n type: Output\n }],\n attach: [{\n type: Output\n }],\n detach: [{\n type: Output\n }],\n overlayKeydown: [{\n type: Output\n }],\n overlayOutsideClick: [{\n type: Output\n }]\n });\n})();\n/** @docs-private */\n\n\nfunction CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {\n return () => overlay.scrollStrategies.reposition();\n}\n/** @docs-private */\n\n\nconst CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER = {\n provide: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY,\n deps: [Overlay],\n useFactory: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY\n};\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nclass OverlayModule {}\n\nOverlayModule.ɵfac = function OverlayModule_Factory(t) {\n return new (t || OverlayModule)();\n};\n\nOverlayModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: OverlayModule\n});\nOverlayModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n providers: [Overlay, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER],\n imports: [[BidiModule, PortalModule, ScrollingModule], ScrollingModule]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(OverlayModule, [{\n type: NgModule,\n args: [{\n imports: [BidiModule, PortalModule, ScrollingModule],\n exports: [CdkConnectedOverlay, CdkOverlayOrigin, ScrollingModule],\n declarations: [CdkConnectedOverlay, CdkOverlayOrigin],\n providers: [Overlay, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER]\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Alternative to OverlayContainer that supports correct displaying of overlay elements in\n * Fullscreen mode\n * https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullScreen\n *\n * Should be provided in the root component.\n */\n\n\nclass FullscreenOverlayContainer extends OverlayContainer {\n constructor(_document, platform) {\n super(_document, platform);\n }\n\n ngOnDestroy() {\n super.ngOnDestroy();\n\n if (this._fullScreenEventName && this._fullScreenListener) {\n this._document.removeEventListener(this._fullScreenEventName, this._fullScreenListener);\n }\n }\n\n _createContainer() {\n super._createContainer();\n\n this._adjustParentForFullscreenChange();\n\n this._addFullscreenChangeListener(() => this._adjustParentForFullscreenChange());\n }\n\n _adjustParentForFullscreenChange() {\n if (!this._containerElement) {\n return;\n }\n\n const fullscreenElement = this.getFullscreenElement();\n const parent = fullscreenElement || this._document.body;\n parent.appendChild(this._containerElement);\n }\n\n _addFullscreenChangeListener(fn) {\n const eventName = this._getEventName();\n\n if (eventName) {\n if (this._fullScreenListener) {\n this._document.removeEventListener(eventName, this._fullScreenListener);\n }\n\n this._document.addEventListener(eventName, fn);\n\n this._fullScreenListener = fn;\n }\n }\n\n _getEventName() {\n if (!this._fullScreenEventName) {\n const _document = this._document;\n\n if (_document.fullscreenEnabled) {\n this._fullScreenEventName = 'fullscreenchange';\n } else if (_document.webkitFullscreenEnabled) {\n this._fullScreenEventName = 'webkitfullscreenchange';\n } else if (_document.mozFullScreenEnabled) {\n this._fullScreenEventName = 'mozfullscreenchange';\n } else if (_document.msFullscreenEnabled) {\n this._fullScreenEventName = 'MSFullscreenChange';\n }\n }\n\n return this._fullScreenEventName;\n }\n /**\n * When the page is put into fullscreen mode, a specific element is specified.\n * Only that element and its children are visible when in fullscreen mode.\n */\n\n\n getFullscreenElement() {\n const _document = this._document;\n return _document.fullscreenElement || _document.webkitFullscreenElement || _document.mozFullScreenElement || _document.msFullscreenElement || null;\n }\n\n}\n\nFullscreenOverlayContainer.ɵfac = function FullscreenOverlayContainer_Factory(t) {\n return new (t || FullscreenOverlayContainer)(i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(i1$1.Platform));\n};\n\nFullscreenOverlayContainer.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: FullscreenOverlayContainer,\n factory: FullscreenOverlayContainer.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(FullscreenOverlayContainer, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: i1$1.Platform\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { BlockScrollStrategy, CdkConnectedOverlay, CdkOverlayOrigin, CloseScrollStrategy, ConnectedOverlayPositionChange, ConnectionPositionPair, FlexibleConnectedPositionStrategy, FullscreenOverlayContainer, GlobalPositionStrategy, NoopScrollStrategy, Overlay, OverlayConfig, OverlayContainer, OverlayKeyboardDispatcher, OverlayModule, OverlayOutsideClickDispatcher, OverlayPositionBuilder, OverlayRef, RepositionScrollStrategy, ScrollStrategyOptions, ScrollingVisibility, validateHorizontalPosition, validateVerticalPosition 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* as i1 from '@angular/cdk/scrolling';\nimport { ScrollingModule } from '@angular/cdk/scrolling';\nexport { CdkScrollable, ScrollDispatcher, ViewportRuler } from '@angular/cdk/scrolling';\nimport * as i6 from '@angular/common';\nimport { DOCUMENT } from '@angular/common';\nimport * as i0 from '@angular/core';\nimport { Injectable, Inject, ElementRef, ApplicationRef, InjectionToken, Directive, EventEmitter, Optional, Input, Output, NgModule } from '@angular/core';\nimport { coerceCssPixelValue, coerceArray, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport * as i1$1 from '@angular/cdk/platform';\nimport { supportsScrollBehavior, _getEventTarget, _isTestEnvironment } from '@angular/cdk/platform';\nimport * as i5 from '@angular/cdk/bidi';\nimport { BidiModule } from '@angular/cdk/bidi';\nimport { DomPortalOutlet, TemplatePortal, PortalModule } from '@angular/cdk/portal';\nimport { Subject, Subscription, merge } from 'rxjs';\nimport { take, takeUntil, takeWhile } from 'rxjs/operators';\nimport { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst scrollBehaviorSupported = supportsScrollBehavior();\n/**\n * Strategy that will prevent the user from scrolling while the overlay is visible.\n */\nclass BlockScrollStrategy {\n constructor(_viewportRuler, document) {\n this._viewportRuler = _viewportRuler;\n this._previousHTMLStyles = { top: '', left: '' };\n this._isEnabled = false;\n this._document = document;\n }\n /** Attaches this scroll strategy to an overlay. */\n attach() { }\n /** Blocks page-level scroll while the attached overlay is open. */\n enable() {\n if (this._canBeEnabled()) {\n const root = this._document.documentElement;\n this._previousScrollPosition = this._viewportRuler.getViewportScrollPosition();\n // Cache the previous inline styles in case the user had set them.\n this._previousHTMLStyles.left = root.style.left || '';\n this._previousHTMLStyles.top = root.style.top || '';\n // Note: we're using the `html` node, instead of the `body`, because the `body` may\n // have the user agent margin, whereas the `html` is guaranteed not to have one.\n root.style.left = coerceCssPixelValue(-this._previousScrollPosition.left);\n root.style.top = coerceCssPixelValue(-this._previousScrollPosition.top);\n root.classList.add('cdk-global-scrollblock');\n this._isEnabled = true;\n }\n }\n /** Unblocks page-level scroll while the attached overlay is open. */\n disable() {\n if (this._isEnabled) {\n const html = this._document.documentElement;\n const body = this._document.body;\n const htmlStyle = html.style;\n const bodyStyle = body.style;\n const previousHtmlScrollBehavior = htmlStyle.scrollBehavior || '';\n const previousBodyScrollBehavior = bodyStyle.scrollBehavior || '';\n this._isEnabled = false;\n htmlStyle.left = this._previousHTMLStyles.left;\n htmlStyle.top = this._previousHTMLStyles.top;\n html.classList.remove('cdk-global-scrollblock');\n // Disable user-defined smooth scrolling temporarily while we restore the scroll position.\n // See https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-behavior\n // Note that we don't mutate the property if the browser doesn't support `scroll-behavior`,\n // because it can throw off feature detections in `supportsScrollBehavior` which\n // checks for `'scrollBehavior' in documentElement.style`.\n if (scrollBehaviorSupported) {\n htmlStyle.scrollBehavior = bodyStyle.scrollBehavior = 'auto';\n }\n window.scroll(this._previousScrollPosition.left, this._previousScrollPosition.top);\n if (scrollBehaviorSupported) {\n htmlStyle.scrollBehavior = previousHtmlScrollBehavior;\n bodyStyle.scrollBehavior = previousBodyScrollBehavior;\n }\n }\n }\n _canBeEnabled() {\n // Since the scroll strategies can't be singletons, we have to use a global CSS class\n // (`cdk-global-scrollblock`) to make sure that we don't try to disable global\n // scrolling multiple times.\n const html = this._document.documentElement;\n if (html.classList.contains('cdk-global-scrollblock') || this._isEnabled) {\n return false;\n }\n const body = this._document.body;\n const viewport = this._viewportRuler.getViewportSize();\n return body.scrollHeight > viewport.height || body.scrollWidth > viewport.width;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Returns an error to be thrown when attempting to attach an already-attached scroll strategy.\n */\nfunction getMatScrollStrategyAlreadyAttachedError() {\n return Error(`Scroll strategy has already been attached.`);\n}\n\n/**\n * Strategy that will close the overlay as soon as the user starts scrolling.\n */\nclass CloseScrollStrategy {\n constructor(_scrollDispatcher, _ngZone, _viewportRuler, _config) {\n this._scrollDispatcher = _scrollDispatcher;\n this._ngZone = _ngZone;\n this._viewportRuler = _viewportRuler;\n this._config = _config;\n this._scrollSubscription = null;\n /** Detaches the overlay ref and disables the scroll strategy. */\n this._detach = () => {\n this.disable();\n if (this._overlayRef.hasAttached()) {\n this._ngZone.run(() => this._overlayRef.detach());\n }\n };\n }\n /** Attaches this scroll strategy to an overlay. */\n attach(overlayRef) {\n if (this._overlayRef && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw getMatScrollStrategyAlreadyAttachedError();\n }\n this._overlayRef = overlayRef;\n }\n /** Enables the closing of the attached overlay on scroll. */\n enable() {\n if (this._scrollSubscription) {\n return;\n }\n const stream = this._scrollDispatcher.scrolled(0);\n if (this._config && this._config.threshold && this._config.threshold > 1) {\n this._initialScrollPosition = this._viewportRuler.getViewportScrollPosition().top;\n this._scrollSubscription = stream.subscribe(() => {\n const scrollPosition = this._viewportRuler.getViewportScrollPosition().top;\n if (Math.abs(scrollPosition - this._initialScrollPosition) > this._config.threshold) {\n this._detach();\n }\n else {\n this._overlayRef.updatePosition();\n }\n });\n }\n else {\n this._scrollSubscription = stream.subscribe(this._detach);\n }\n }\n /** Disables the closing the attached overlay on scroll. */\n disable() {\n if (this._scrollSubscription) {\n this._scrollSubscription.unsubscribe();\n this._scrollSubscription = null;\n }\n }\n detach() {\n this.disable();\n this._overlayRef = null;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Scroll strategy that doesn't do anything. */\nclass NoopScrollStrategy {\n /** Does nothing, as this scroll strategy is a no-op. */\n enable() { }\n /** Does nothing, as this scroll strategy is a no-op. */\n disable() { }\n /** Does nothing, as this scroll strategy is a no-op. */\n attach() { }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Gets whether an element is scrolled outside of view by any of its parent scrolling containers.\n * @param element Dimensions of the element (from getBoundingClientRect)\n * @param scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @returns Whether the element is scrolled out of view\n * @docs-private\n */\nfunction isElementScrolledOutsideView(element, scrollContainers) {\n return scrollContainers.some(containerBounds => {\n const outsideAbove = element.bottom < containerBounds.top;\n const outsideBelow = element.top > containerBounds.bottom;\n const outsideLeft = element.right < containerBounds.left;\n const outsideRight = element.left > containerBounds.right;\n return outsideAbove || outsideBelow || outsideLeft || outsideRight;\n });\n}\n/**\n * Gets whether an element is clipped by any of its scrolling containers.\n * @param element Dimensions of the element (from getBoundingClientRect)\n * @param scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @returns Whether the element is clipped\n * @docs-private\n */\nfunction isElementClippedByScrolling(element, scrollContainers) {\n return scrollContainers.some(scrollContainerRect => {\n const clippedAbove = element.top < scrollContainerRect.top;\n const clippedBelow = element.bottom > scrollContainerRect.bottom;\n const clippedLeft = element.left < scrollContainerRect.left;\n const clippedRight = element.right > scrollContainerRect.right;\n return clippedAbove || clippedBelow || clippedLeft || clippedRight;\n });\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Strategy that will update the element position as the user is scrolling.\n */\nclass RepositionScrollStrategy {\n constructor(_scrollDispatcher, _viewportRuler, _ngZone, _config) {\n this._scrollDispatcher = _scrollDispatcher;\n this._viewportRuler = _viewportRuler;\n this._ngZone = _ngZone;\n this._config = _config;\n this._scrollSubscription = null;\n }\n /** Attaches this scroll strategy to an overlay. */\n attach(overlayRef) {\n if (this._overlayRef && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw getMatScrollStrategyAlreadyAttachedError();\n }\n this._overlayRef = overlayRef;\n }\n /** Enables repositioning of the attached overlay on scroll. */\n enable() {\n if (!this._scrollSubscription) {\n const throttle = this._config ? this._config.scrollThrottle : 0;\n this._scrollSubscription = this._scrollDispatcher.scrolled(throttle).subscribe(() => {\n this._overlayRef.updatePosition();\n // TODO(crisbeto): make `close` on by default once all components can handle it.\n if (this._config && this._config.autoClose) {\n const overlayRect = this._overlayRef.overlayElement.getBoundingClientRect();\n const { width, height } = this._viewportRuler.getViewportSize();\n // TODO(crisbeto): include all ancestor scroll containers here once\n // we have a way of exposing the trigger element to the scroll strategy.\n const parentRects = [{ width, height, bottom: height, right: width, top: 0, left: 0 }];\n if (isElementScrolledOutsideView(overlayRect, parentRects)) {\n this.disable();\n this._ngZone.run(() => this._overlayRef.detach());\n }\n }\n });\n }\n }\n /** Disables repositioning of the attached overlay on scroll. */\n disable() {\n if (this._scrollSubscription) {\n this._scrollSubscription.unsubscribe();\n this._scrollSubscription = null;\n }\n }\n detach() {\n this.disable();\n this._overlayRef = null;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Options for how an overlay will handle scrolling.\n *\n * Users can provide a custom value for `ScrollStrategyOptions` to replace the default\n * behaviors. This class primarily acts as a factory for ScrollStrategy instances.\n */\nclass ScrollStrategyOptions {\n constructor(_scrollDispatcher, _viewportRuler, _ngZone, document) {\n this._scrollDispatcher = _scrollDispatcher;\n this._viewportRuler = _viewportRuler;\n this._ngZone = _ngZone;\n /** Do nothing on scroll. */\n this.noop = () => new NoopScrollStrategy();\n /**\n * Close the overlay as soon as the user scrolls.\n * @param config Configuration to be used inside the scroll strategy.\n */\n this.close = (config) => new CloseScrollStrategy(this._scrollDispatcher, this._ngZone, this._viewportRuler, config);\n /** Block scrolling. */\n this.block = () => new BlockScrollStrategy(this._viewportRuler, this._document);\n /**\n * Update the overlay's position on scroll.\n * @param config Configuration to be used inside the scroll strategy.\n * Allows debouncing the reposition calls.\n */\n this.reposition = (config) => new RepositionScrollStrategy(this._scrollDispatcher, this._viewportRuler, this._ngZone, config);\n this._document = document;\n }\n}\nScrollStrategyOptions.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollStrategyOptions, deps: [{ token: i1.ScrollDispatcher }, { token: i1.ViewportRuler }, { token: i0.NgZone }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nScrollStrategyOptions.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollStrategyOptions, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollStrategyOptions, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.ScrollDispatcher }, { type: i1.ViewportRuler }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Initial configuration used when creating an overlay. */\nclass OverlayConfig {\n constructor(config) {\n /** Strategy to be used when handling scroll events while the overlay is open. */\n this.scrollStrategy = new NoopScrollStrategy();\n /** Custom class to add to the overlay pane. */\n this.panelClass = '';\n /** Whether the overlay has a backdrop. */\n this.hasBackdrop = false;\n /** Custom class to add to the backdrop */\n this.backdropClass = 'cdk-overlay-dark-backdrop';\n /**\n * Whether the overlay should be disposed of when the user goes backwards/forwards in history.\n * Note that this usually doesn't include clicking on links (unless the user is using\n * the `HashLocationStrategy`).\n */\n this.disposeOnNavigation = false;\n if (config) {\n // Use `Iterable` instead of `Array` because TypeScript, as of 3.6.3,\n // loses the array generic type in the `for of`. But we *also* have to use `Array` because\n // typescript won't iterate over an `Iterable` unless you compile with `--downlevelIteration`\n const configKeys = Object.keys(config);\n for (const key of configKeys) {\n if (config[key] !== undefined) {\n // TypeScript, as of version 3.5, sees the left-hand-side of this expression\n // as \"I don't know *which* key this is, so the only valid value is the intersection\n // of all the posible values.\" In this case, that happens to be `undefined`. TypeScript\n // is not smart enough to see that the right-hand-side is actually an access of the same\n // exact type with the same exact key, meaning that the value type must be identical.\n // So we use `any` to work around this.\n this[key] = config[key];\n }\n }\n }\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** The points of the origin element and the overlay element to connect. */\nclass ConnectionPositionPair {\n constructor(origin, overlay, \n /** Offset along the X axis. */\n offsetX, \n /** Offset along the Y axis. */\n offsetY, \n /** Class(es) to be applied to the panel while this position is active. */\n panelClass) {\n this.offsetX = offsetX;\n this.offsetY = offsetY;\n this.panelClass = panelClass;\n this.originX = origin.originX;\n this.originY = origin.originY;\n this.overlayX = overlay.overlayX;\n this.overlayY = overlay.overlayY;\n }\n}\n/**\n * Set of properties regarding the position of the origin and overlay relative to the viewport\n * with respect to the containing Scrollable elements.\n *\n * The overlay and origin are clipped if any part of their bounding client rectangle exceeds the\n * bounds of any one of the strategy's Scrollable's bounding client rectangle.\n *\n * The overlay and origin are outside view if there is no overlap between their bounding client\n * rectangle and any one of the strategy's Scrollable's bounding client rectangle.\n *\n * ----------- -----------\n * | outside | | clipped |\n * | view | --------------------------\n * | | | | | |\n * ---------- | ----------- |\n * -------------------------- | |\n * | | | Scrollable |\n * | | | |\n * | | --------------------------\n * | Scrollable |\n * | |\n * --------------------------\n *\n * @docs-private\n */\nclass ScrollingVisibility {\n}\n/** The change event emitted by the strategy when a fallback position is used. */\nclass ConnectedOverlayPositionChange {\n constructor(\n /** The position used as a result of this change. */\n connectionPair, \n /** @docs-private */\n scrollableViewProperties) {\n this.connectionPair = connectionPair;\n this.scrollableViewProperties = scrollableViewProperties;\n }\n}\n/**\n * Validates whether a vertical position property matches the expected values.\n * @param property Name of the property being validated.\n * @param value Value of the property being validated.\n * @docs-private\n */\nfunction validateVerticalPosition(property, value) {\n if (value !== 'top' && value !== 'bottom' && value !== 'center') {\n throw Error(`ConnectedPosition: Invalid ${property} \"${value}\". ` +\n `Expected \"top\", \"bottom\" or \"center\".`);\n }\n}\n/**\n * Validates whether a horizontal position property matches the expected values.\n * @param property Name of the property being validated.\n * @param value Value of the property being validated.\n * @docs-private\n */\nfunction validateHorizontalPosition(property, value) {\n if (value !== 'start' && value !== 'end' && value !== 'center') {\n throw Error(`ConnectedPosition: Invalid ${property} \"${value}\". ` +\n `Expected \"start\", \"end\" or \"center\".`);\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Service for dispatching events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\nclass BaseOverlayDispatcher {\n constructor(document) {\n /** Currently attached overlays in the order they were attached. */\n this._attachedOverlays = [];\n this._document = document;\n }\n ngOnDestroy() {\n this.detach();\n }\n /** Add a new overlay to the list of attached overlay refs. */\n add(overlayRef) {\n // Ensure that we don't get the same overlay multiple times.\n this.remove(overlayRef);\n this._attachedOverlays.push(overlayRef);\n }\n /** Remove an overlay from the list of attached overlay refs. */\n remove(overlayRef) {\n const index = this._attachedOverlays.indexOf(overlayRef);\n if (index > -1) {\n this._attachedOverlays.splice(index, 1);\n }\n // Remove the global listener once there are no more overlays.\n if (this._attachedOverlays.length === 0) {\n this.detach();\n }\n }\n}\nBaseOverlayDispatcher.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: BaseOverlayDispatcher, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nBaseOverlayDispatcher.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: BaseOverlayDispatcher, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: BaseOverlayDispatcher, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Service for dispatching keyboard events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\nclass OverlayKeyboardDispatcher extends BaseOverlayDispatcher {\n constructor(document) {\n super(document);\n /** Keyboard event listener that will be attached to the body. */\n this._keydownListener = (event) => {\n const overlays = this._attachedOverlays;\n for (let i = overlays.length - 1; i > -1; i--) {\n // Dispatch the keydown event to the top overlay which has subscribers to its keydown events.\n // We want to target the most recent overlay, rather than trying to match where the event came\n // from, because some components might open an overlay, but keep focus on a trigger element\n // (e.g. for select and autocomplete). We skip overlays without keydown event subscriptions,\n // because we don't want overlays that don't handle keyboard events to block the ones below\n // them that do.\n if (overlays[i]._keydownEvents.observers.length > 0) {\n overlays[i]._keydownEvents.next(event);\n break;\n }\n }\n };\n }\n /** Add a new overlay to the list of attached overlay refs. */\n add(overlayRef) {\n super.add(overlayRef);\n // Lazily start dispatcher once first overlay is added\n if (!this._isAttached) {\n this._document.body.addEventListener('keydown', this._keydownListener);\n this._isAttached = true;\n }\n }\n /** Detaches the global keyboard event listener. */\n detach() {\n if (this._isAttached) {\n this._document.body.removeEventListener('keydown', this._keydownListener);\n this._isAttached = false;\n }\n }\n}\nOverlayKeyboardDispatcher.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayKeyboardDispatcher, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nOverlayKeyboardDispatcher.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayKeyboardDispatcher, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayKeyboardDispatcher, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Service for dispatching mouse click events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\nclass OverlayOutsideClickDispatcher extends BaseOverlayDispatcher {\n constructor(document, _platform) {\n super(document);\n this._platform = _platform;\n this._cursorStyleIsSet = false;\n /** Store pointerdown event target to track origin of click. */\n this._pointerDownListener = (event) => {\n this._pointerDownEventTarget = _getEventTarget(event);\n };\n /** Click event listener that will be attached to the body propagate phase. */\n this._clickListener = (event) => {\n const target = _getEventTarget(event);\n // In case of a click event, we want to check the origin of the click\n // (e.g. in case where a user starts a click inside the overlay and\n // releases the click outside of it).\n // This is done by using the event target of the preceding pointerdown event.\n // Every click event caused by a pointer device has a preceding pointerdown\n // event, unless the click was programmatically triggered (e.g. in a unit test).\n const origin = event.type === 'click' && this._pointerDownEventTarget\n ? this._pointerDownEventTarget : target;\n // Reset the stored pointerdown event target, to avoid having it interfere\n // in subsequent events.\n this._pointerDownEventTarget = null;\n // We copy the array because the original may be modified asynchronously if the\n // outsidePointerEvents listener decides to detach overlays resulting in index errors inside\n // the for loop.\n const overlays = this._attachedOverlays.slice();\n // Dispatch the mouse event to the top overlay which has subscribers to its mouse events.\n // We want to target all overlays for which the click could be considered as outside click.\n // As soon as we reach an overlay for which the click is not outside click we break off\n // the loop.\n for (let i = overlays.length - 1; i > -1; i--) {\n const overlayRef = overlays[i];\n if (overlayRef._outsidePointerEvents.observers.length < 1 || !overlayRef.hasAttached()) {\n continue;\n }\n // If it's a click inside the overlay, just break - we should do nothing\n // If it's an outside click (both origin and target of the click) dispatch the mouse event,\n // and proceed with the next overlay\n if (overlayRef.overlayElement.contains(target) ||\n overlayRef.overlayElement.contains(origin)) {\n break;\n }\n overlayRef._outsidePointerEvents.next(event);\n }\n };\n }\n /** Add a new overlay to the list of attached overlay refs. */\n add(overlayRef) {\n super.add(overlayRef);\n // Safari on iOS does not generate click events for non-interactive\n // elements. However, we want to receive a click for any element outside\n // the overlay. We can force a \"clickable\" state by setting\n // `cursor: pointer` on the document body. See:\n // https://developer.mozilla.org/en-US/docs/Web/API/Element/click_event#Safari_Mobile\n // https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/HandlingEvents/HandlingEvents.html\n if (!this._isAttached) {\n const body = this._document.body;\n body.addEventListener('pointerdown', this._pointerDownListener, true);\n body.addEventListener('click', this._clickListener, true);\n body.addEventListener('auxclick', this._clickListener, true);\n body.addEventListener('contextmenu', this._clickListener, true);\n // click event is not fired on iOS. To make element \"clickable\" we are\n // setting the cursor to pointer\n if (this._platform.IOS && !this._cursorStyleIsSet) {\n this._cursorOriginalValue = body.style.cursor;\n body.style.cursor = 'pointer';\n this._cursorStyleIsSet = true;\n }\n this._isAttached = true;\n }\n }\n /** Detaches the global keyboard event listener. */\n detach() {\n if (this._isAttached) {\n const body = this._document.body;\n body.removeEventListener('pointerdown', this._pointerDownListener, true);\n body.removeEventListener('click', this._clickListener, true);\n body.removeEventListener('auxclick', this._clickListener, true);\n body.removeEventListener('contextmenu', this._clickListener, true);\n if (this._platform.IOS && this._cursorStyleIsSet) {\n body.style.cursor = this._cursorOriginalValue;\n this._cursorStyleIsSet = false;\n }\n this._isAttached = false;\n }\n }\n}\nOverlayOutsideClickDispatcher.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayOutsideClickDispatcher, deps: [{ token: DOCUMENT }, { token: i1$1.Platform }], target: i0.ɵɵFactoryTarget.Injectable });\nOverlayOutsideClickDispatcher.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayOutsideClickDispatcher, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayOutsideClickDispatcher, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: i1$1.Platform }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Container inside which all overlays will render. */\nclass OverlayContainer {\n constructor(document, _platform) {\n this._platform = _platform;\n this._document = document;\n }\n ngOnDestroy() {\n this._containerElement?.remove();\n }\n /**\n * This method returns the overlay container element. It will lazily\n * create the element the first time it is called to facilitate using\n * the container in non-browser environments.\n * @returns the container element\n */\n getContainerElement() {\n if (!this._containerElement) {\n this._createContainer();\n }\n return this._containerElement;\n }\n /**\n * Create the overlay container element, which is simply a div\n * with the 'cdk-overlay-container' class on the document body.\n */\n _createContainer() {\n const containerClass = 'cdk-overlay-container';\n // TODO(crisbeto): remove the testing check once we have an overlay testing\n // module or Angular starts tearing down the testing `NgModule`. See:\n // https://github.com/angular/angular/issues/18831\n if (this._platform.isBrowser || _isTestEnvironment()) {\n const oppositePlatformContainers = this._document.querySelectorAll(`.${containerClass}[platform=\"server\"], ` + `.${containerClass}[platform=\"test\"]`);\n // Remove any old containers from the opposite platform.\n // This can happen when transitioning from the server to the client.\n for (let i = 0; i < oppositePlatformContainers.length; i++) {\n oppositePlatformContainers[i].remove();\n }\n }\n const container = this._document.createElement('div');\n container.classList.add(containerClass);\n // A long time ago we kept adding new overlay containers whenever a new app was instantiated,\n // but at some point we added logic which clears the duplicate ones in order to avoid leaks.\n // The new logic was a little too aggressive since it was breaking some legitimate use cases.\n // To mitigate the problem we made it so that only containers from a different platform are\n // cleared, but the side-effect was that people started depending on the overly-aggressive\n // logic to clean up their tests for them. Until we can introduce an overlay-specific testing\n // module which does the cleanup, we try to detect that we're in a test environment and we\n // always clear the container. See #17006.\n // TODO(crisbeto): remove the test environment check once we have an overlay testing module.\n if (_isTestEnvironment()) {\n container.setAttribute('platform', 'test');\n }\n else if (!this._platform.isBrowser) {\n container.setAttribute('platform', 'server');\n }\n this._document.body.appendChild(container);\n this._containerElement = container;\n }\n}\nOverlayContainer.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayContainer, deps: [{ token: DOCUMENT }, { token: i1$1.Platform }], target: i0.ɵɵFactoryTarget.Injectable });\nOverlayContainer.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayContainer, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayContainer, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: i1$1.Platform }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Reference to an overlay that has been created with the Overlay service.\n * Used to manipulate or dispose of said overlay.\n */\nclass OverlayRef {\n constructor(_portalOutlet, _host, _pane, _config, _ngZone, _keyboardDispatcher, _document, _location, _outsideClickDispatcher) {\n this._portalOutlet = _portalOutlet;\n this._host = _host;\n this._pane = _pane;\n this._config = _config;\n this._ngZone = _ngZone;\n this._keyboardDispatcher = _keyboardDispatcher;\n this._document = _document;\n this._location = _location;\n this._outsideClickDispatcher = _outsideClickDispatcher;\n this._backdropElement = null;\n this._backdropClick = new Subject();\n this._attachments = new Subject();\n this._detachments = new Subject();\n this._locationChanges = Subscription.EMPTY;\n this._backdropClickHandler = (event) => this._backdropClick.next(event);\n /** Stream of keydown events dispatched to this overlay. */\n this._keydownEvents = new Subject();\n /** Stream of mouse outside events dispatched to this overlay. */\n this._outsidePointerEvents = new Subject();\n if (_config.scrollStrategy) {\n this._scrollStrategy = _config.scrollStrategy;\n this._scrollStrategy.attach(this);\n }\n this._positionStrategy = _config.positionStrategy;\n }\n /** The overlay's HTML element */\n get overlayElement() {\n return this._pane;\n }\n /** The overlay's backdrop HTML element. */\n get backdropElement() {\n return this._backdropElement;\n }\n /**\n * Wrapper around the panel element. Can be used for advanced\n * positioning where a wrapper with specific styling is\n * required around the overlay pane.\n */\n get hostElement() {\n return this._host;\n }\n /**\n * Attaches content, given via a Portal, to the overlay.\n * If the overlay is configured to have a backdrop, it will be created.\n *\n * @param portal Portal instance to which to attach the overlay.\n * @returns The portal attachment result.\n */\n attach(portal) {\n let attachResult = this._portalOutlet.attach(portal);\n // Update the pane element with the given configuration.\n if (!this._host.parentElement && this._previousHostParent) {\n this._previousHostParent.appendChild(this._host);\n }\n if (this._positionStrategy) {\n this._positionStrategy.attach(this);\n }\n this._updateStackingOrder();\n this._updateElementSize();\n this._updateElementDirection();\n if (this._scrollStrategy) {\n this._scrollStrategy.enable();\n }\n // Update the position once the zone is stable so that the overlay will be fully rendered\n // before attempting to position it, as the position may depend on the size of the rendered\n // content.\n this._ngZone.onStable.pipe(take(1)).subscribe(() => {\n // The overlay could've been detached before the zone has stabilized.\n if (this.hasAttached()) {\n this.updatePosition();\n }\n });\n // Enable pointer events for the overlay pane element.\n this._togglePointerEvents(true);\n if (this._config.hasBackdrop) {\n this._attachBackdrop();\n }\n if (this._config.panelClass) {\n this._toggleClasses(this._pane, this._config.panelClass, true);\n }\n // Only emit the `attachments` event once all other setup is done.\n this._attachments.next();\n // Track this overlay by the keyboard dispatcher\n this._keyboardDispatcher.add(this);\n if (this._config.disposeOnNavigation) {\n this._locationChanges = this._location.subscribe(() => this.dispose());\n }\n this._outsideClickDispatcher.add(this);\n return attachResult;\n }\n /**\n * Detaches an overlay from a portal.\n * @returns The portal detachment result.\n */\n detach() {\n if (!this.hasAttached()) {\n return;\n }\n this.detachBackdrop();\n // When the overlay is detached, the pane element should disable pointer events.\n // This is necessary because otherwise the pane element will cover the page and disable\n // pointer events therefore. Depends on the position strategy and the applied pane boundaries.\n this._togglePointerEvents(false);\n if (this._positionStrategy && this._positionStrategy.detach) {\n this._positionStrategy.detach();\n }\n if (this._scrollStrategy) {\n this._scrollStrategy.disable();\n }\n const detachmentResult = this._portalOutlet.detach();\n // Only emit after everything is detached.\n this._detachments.next();\n // Remove this overlay from keyboard dispatcher tracking.\n this._keyboardDispatcher.remove(this);\n // Keeping the host element in the DOM can cause scroll jank, because it still gets\n // rendered, even though it's transparent and unclickable which is why we remove it.\n this._detachContentWhenStable();\n this._locationChanges.unsubscribe();\n this._outsideClickDispatcher.remove(this);\n return detachmentResult;\n }\n /** Cleans up the overlay from the DOM. */\n dispose() {\n const isAttached = this.hasAttached();\n if (this._positionStrategy) {\n this._positionStrategy.dispose();\n }\n this._disposeScrollStrategy();\n this._disposeBackdrop(this._backdropElement);\n this._locationChanges.unsubscribe();\n this._keyboardDispatcher.remove(this);\n this._portalOutlet.dispose();\n this._attachments.complete();\n this._backdropClick.complete();\n this._keydownEvents.complete();\n this._outsidePointerEvents.complete();\n this._outsideClickDispatcher.remove(this);\n this._host?.remove();\n this._previousHostParent = this._pane = this._host = null;\n if (isAttached) {\n this._detachments.next();\n }\n this._detachments.complete();\n }\n /** Whether the overlay has attached content. */\n hasAttached() {\n return this._portalOutlet.hasAttached();\n }\n /** Gets an observable that emits when the backdrop has been clicked. */\n backdropClick() {\n return this._backdropClick;\n }\n /** Gets an observable that emits when the overlay has been attached. */\n attachments() {\n return this._attachments;\n }\n /** Gets an observable that emits when the overlay has been detached. */\n detachments() {\n return this._detachments;\n }\n /** Gets an observable of keydown events targeted to this overlay. */\n keydownEvents() {\n return this._keydownEvents;\n }\n /** Gets an observable of pointer events targeted outside this overlay. */\n outsidePointerEvents() {\n return this._outsidePointerEvents;\n }\n /** Gets the current overlay configuration, which is immutable. */\n getConfig() {\n return this._config;\n }\n /** Updates the position of the overlay based on the position strategy. */\n updatePosition() {\n if (this._positionStrategy) {\n this._positionStrategy.apply();\n }\n }\n /** Switches to a new position strategy and updates the overlay position. */\n updatePositionStrategy(strategy) {\n if (strategy === this._positionStrategy) {\n return;\n }\n if (this._positionStrategy) {\n this._positionStrategy.dispose();\n }\n this._positionStrategy = strategy;\n if (this.hasAttached()) {\n strategy.attach(this);\n this.updatePosition();\n }\n }\n /** Update the size properties of the overlay. */\n updateSize(sizeConfig) {\n this._config = { ...this._config, ...sizeConfig };\n this._updateElementSize();\n }\n /** Sets the LTR/RTL direction for the overlay. */\n setDirection(dir) {\n this._config = { ...this._config, direction: dir };\n this._updateElementDirection();\n }\n /** Add a CSS class or an array of classes to the overlay pane. */\n addPanelClass(classes) {\n if (this._pane) {\n this._toggleClasses(this._pane, classes, true);\n }\n }\n /** Remove a CSS class or an array of classes from the overlay pane. */\n removePanelClass(classes) {\n if (this._pane) {\n this._toggleClasses(this._pane, classes, false);\n }\n }\n /**\n * Returns the layout direction of the overlay panel.\n */\n getDirection() {\n const direction = this._config.direction;\n if (!direction) {\n return 'ltr';\n }\n return typeof direction === 'string' ? direction : direction.value;\n }\n /** Switches to a new scroll strategy. */\n updateScrollStrategy(strategy) {\n if (strategy === this._scrollStrategy) {\n return;\n }\n this._disposeScrollStrategy();\n this._scrollStrategy = strategy;\n if (this.hasAttached()) {\n strategy.attach(this);\n strategy.enable();\n }\n }\n /** Updates the text direction of the overlay panel. */\n _updateElementDirection() {\n this._host.setAttribute('dir', this.getDirection());\n }\n /** Updates the size of the overlay element based on the overlay config. */\n _updateElementSize() {\n if (!this._pane) {\n return;\n }\n const style = this._pane.style;\n style.width = coerceCssPixelValue(this._config.width);\n style.height = coerceCssPixelValue(this._config.height);\n style.minWidth = coerceCssPixelValue(this._config.minWidth);\n style.minHeight = coerceCssPixelValue(this._config.minHeight);\n style.maxWidth = coerceCssPixelValue(this._config.maxWidth);\n style.maxHeight = coerceCssPixelValue(this._config.maxHeight);\n }\n /** Toggles the pointer events for the overlay pane element. */\n _togglePointerEvents(enablePointer) {\n this._pane.style.pointerEvents = enablePointer ? '' : 'none';\n }\n /** Attaches a backdrop for this overlay. */\n _attachBackdrop() {\n const showingClass = 'cdk-overlay-backdrop-showing';\n this._backdropElement = this._document.createElement('div');\n this._backdropElement.classList.add('cdk-overlay-backdrop');\n if (this._config.backdropClass) {\n this._toggleClasses(this._backdropElement, this._config.backdropClass, true);\n }\n // Insert the backdrop before the pane in the DOM order,\n // in order to handle stacked overlays properly.\n this._host.parentElement.insertBefore(this._backdropElement, this._host);\n // Forward backdrop clicks such that the consumer of the overlay can perform whatever\n // action desired when such a click occurs (usually closing the overlay).\n this._backdropElement.addEventListener('click', this._backdropClickHandler);\n // Add class to fade-in the backdrop after one frame.\n if (typeof requestAnimationFrame !== 'undefined') {\n this._ngZone.runOutsideAngular(() => {\n requestAnimationFrame(() => {\n if (this._backdropElement) {\n this._backdropElement.classList.add(showingClass);\n }\n });\n });\n }\n else {\n this._backdropElement.classList.add(showingClass);\n }\n }\n /**\n * Updates the stacking order of the element, moving it to the top if necessary.\n * This is required in cases where one overlay was detached, while another one,\n * that should be behind it, was destroyed. The next time both of them are opened,\n * the stacking will be wrong, because the detached element's pane will still be\n * in its original DOM position.\n */\n _updateStackingOrder() {\n if (this._host.nextSibling) {\n this._host.parentNode.appendChild(this._host);\n }\n }\n /** Detaches the backdrop (if any) associated with the overlay. */\n detachBackdrop() {\n const backdropToDetach = this._backdropElement;\n if (!backdropToDetach) {\n return;\n }\n let timeoutId;\n const finishDetach = () => {\n // It may not be attached to anything in certain cases (e.g. unit tests).\n if (backdropToDetach) {\n backdropToDetach.removeEventListener('click', this._backdropClickHandler);\n backdropToDetach.removeEventListener('transitionend', finishDetach);\n this._disposeBackdrop(backdropToDetach);\n }\n if (this._config.backdropClass) {\n this._toggleClasses(backdropToDetach, this._config.backdropClass, false);\n }\n clearTimeout(timeoutId);\n };\n backdropToDetach.classList.remove('cdk-overlay-backdrop-showing');\n this._ngZone.runOutsideAngular(() => {\n backdropToDetach.addEventListener('transitionend', finishDetach);\n });\n // If the backdrop doesn't have a transition, the `transitionend` event won't fire.\n // In this case we make it unclickable and we try to remove it after a delay.\n backdropToDetach.style.pointerEvents = 'none';\n // Run this outside the Angular zone because there's nothing that Angular cares about.\n // If it were to run inside the Angular zone, every test that used Overlay would have to be\n // either async or fakeAsync.\n timeoutId = this._ngZone.runOutsideAngular(() => setTimeout(finishDetach, 500));\n }\n /** Toggles a single CSS class or an array of classes on an element. */\n _toggleClasses(element, cssClasses, isAdd) {\n const classes = coerceArray(cssClasses || []).filter(c => !!c);\n if (classes.length) {\n isAdd ? element.classList.add(...classes) : element.classList.remove(...classes);\n }\n }\n /** Detaches the overlay content next time the zone stabilizes. */\n _detachContentWhenStable() {\n // Normally we wouldn't have to explicitly run this outside the `NgZone`, however\n // if the consumer is using `zone-patch-rxjs`, the `Subscription.unsubscribe` call will\n // be patched to run inside the zone, which will throw us into an infinite loop.\n this._ngZone.runOutsideAngular(() => {\n // We can't remove the host here immediately, because the overlay pane's content\n // might still be animating. This stream helps us avoid interrupting the animation\n // by waiting for the pane to become empty.\n const subscription = this._ngZone.onStable\n .pipe(takeUntil(merge(this._attachments, this._detachments)))\n .subscribe(() => {\n // Needs a couple of checks for the pane and host, because\n // they may have been removed by the time the zone stabilizes.\n if (!this._pane || !this._host || this._pane.children.length === 0) {\n if (this._pane && this._config.panelClass) {\n this._toggleClasses(this._pane, this._config.panelClass, false);\n }\n if (this._host && this._host.parentElement) {\n this._previousHostParent = this._host.parentElement;\n this._host.remove();\n }\n subscription.unsubscribe();\n }\n });\n });\n }\n /** Disposes of a scroll strategy. */\n _disposeScrollStrategy() {\n const scrollStrategy = this._scrollStrategy;\n if (scrollStrategy) {\n scrollStrategy.disable();\n if (scrollStrategy.detach) {\n scrollStrategy.detach();\n }\n }\n }\n /** Removes a backdrop element from the DOM. */\n _disposeBackdrop(backdrop) {\n if (backdrop) {\n backdrop.remove();\n // It is possible that a new portal has been attached to this overlay since we started\n // removing the backdrop. If that is the case, only clear the backdrop reference if it\n // is still the same instance that we started to remove.\n if (this._backdropElement === backdrop) {\n this._backdropElement = null;\n }\n }\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// TODO: refactor clipping detection into a separate thing (part of scrolling module)\n// TODO: doesn't handle both flexible width and height when it has to scroll along both axis.\n/** Class to be added to the overlay bounding box. */\nconst boundingBoxClass = 'cdk-overlay-connected-position-bounding-box';\n/** Regex used to split a string on its CSS units. */\nconst cssUnitPattern = /([A-Za-z%]+)$/;\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * implicit position relative some origin element. The relative position is defined in terms of\n * a point on the origin element that is connected to a point on the overlay element. For example,\n * a basic dropdown is connecting the bottom-left corner of the origin to the top-left corner\n * of the overlay.\n */\nclass FlexibleConnectedPositionStrategy {\n constructor(connectedTo, _viewportRuler, _document, _platform, _overlayContainer) {\n this._viewportRuler = _viewportRuler;\n this._document = _document;\n this._platform = _platform;\n this._overlayContainer = _overlayContainer;\n /** Last size used for the bounding box. Used to avoid resizing the overlay after open. */\n this._lastBoundingBoxSize = { width: 0, height: 0 };\n /** Whether the overlay was pushed in a previous positioning. */\n this._isPushed = false;\n /** Whether the overlay can be pushed on-screen on the initial open. */\n this._canPush = true;\n /** Whether the overlay can grow via flexible width/height after the initial open. */\n this._growAfterOpen = false;\n /** Whether the overlay's width and height can be constrained to fit within the viewport. */\n this._hasFlexibleDimensions = true;\n /** Whether the overlay position is locked. */\n this._positionLocked = false;\n /** Amount of space that must be maintained between the overlay and the edge of the viewport. */\n this._viewportMargin = 0;\n /** The Scrollable containers used to check scrollable view properties on position change. */\n this._scrollables = [];\n /** Ordered list of preferred positions, from most to least desirable. */\n this._preferredPositions = [];\n /** Subject that emits whenever the position changes. */\n this._positionChanges = new Subject();\n /** Subscription to viewport size changes. */\n this._resizeSubscription = Subscription.EMPTY;\n /** Default offset for the overlay along the x axis. */\n this._offsetX = 0;\n /** Default offset for the overlay along the y axis. */\n this._offsetY = 0;\n /** Keeps track of the CSS classes that the position strategy has applied on the overlay panel. */\n this._appliedPanelClasses = [];\n /** Observable sequence of position changes. */\n this.positionChanges = this._positionChanges;\n this.setOrigin(connectedTo);\n }\n /** Ordered list of preferred positions, from most to least desirable. */\n get positions() {\n return this._preferredPositions;\n }\n /** Attaches this position strategy to an overlay. */\n attach(overlayRef) {\n if (this._overlayRef &&\n overlayRef !== this._overlayRef &&\n (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('This position strategy is already attached to an overlay');\n }\n this._validatePositions();\n overlayRef.hostElement.classList.add(boundingBoxClass);\n this._overlayRef = overlayRef;\n this._boundingBox = overlayRef.hostElement;\n this._pane = overlayRef.overlayElement;\n this._isDisposed = false;\n this._isInitialRender = true;\n this._lastPosition = null;\n this._resizeSubscription.unsubscribe();\n this._resizeSubscription = this._viewportRuler.change().subscribe(() => {\n // When the window is resized, we want to trigger the next reposition as if it\n // was an initial render, in order for the strategy to pick a new optimal position,\n // otherwise position locking will cause it to stay at the old one.\n this._isInitialRender = true;\n this.apply();\n });\n }\n /**\n * Updates the position of the overlay element, using whichever preferred position relative\n * to the origin best fits on-screen.\n *\n * The selection of a position goes as follows:\n * - If any positions fit completely within the viewport as-is,\n * choose the first position that does so.\n * - If flexible dimensions are enabled and at least one satifies the given minimum width/height,\n * choose the position with the greatest available size modified by the positions' weight.\n * - If pushing is enabled, take the position that went off-screen the least and push it\n * on-screen.\n * - If none of the previous criteria were met, use the position that goes off-screen the least.\n * @docs-private\n */\n apply() {\n // We shouldn't do anything if the strategy was disposed or we're on the server.\n if (this._isDisposed || !this._platform.isBrowser) {\n return;\n }\n // If the position has been applied already (e.g. when the overlay was opened) and the\n // consumer opted into locking in the position, re-use the old position, in order to\n // prevent the overlay from jumping around.\n if (!this._isInitialRender && this._positionLocked && this._lastPosition) {\n this.reapplyLastPosition();\n return;\n }\n this._clearPanelClasses();\n this._resetOverlayElementStyles();\n this._resetBoundingBoxStyles();\n // We need the bounding rects for the origin and the overlay to determine how to position\n // the overlay relative to the origin.\n // We use the viewport rect to determine whether a position would go off-screen.\n this._viewportRect = this._getNarrowedViewportRect();\n this._originRect = this._getOriginRect();\n this._overlayRect = this._pane.getBoundingClientRect();\n const originRect = this._originRect;\n const overlayRect = this._overlayRect;\n const viewportRect = this._viewportRect;\n // Positions where the overlay will fit with flexible dimensions.\n const flexibleFits = [];\n // Fallback if none of the preferred positions fit within the viewport.\n let fallback;\n // Go through each of the preferred positions looking for a good fit.\n // If a good fit is found, it will be applied immediately.\n for (let pos of this._preferredPositions) {\n // Get the exact (x, y) coordinate for the point-of-origin on the origin element.\n let originPoint = this._getOriginPoint(originRect, pos);\n // From that point-of-origin, get the exact (x, y) coordinate for the top-left corner of the\n // overlay in this position. We use the top-left corner for calculations and later translate\n // this into an appropriate (top, left, bottom, right) style.\n let overlayPoint = this._getOverlayPoint(originPoint, overlayRect, pos);\n // Calculate how well the overlay would fit into the viewport with this point.\n let overlayFit = this._getOverlayFit(overlayPoint, overlayRect, viewportRect, pos);\n // If the overlay, without any further work, fits into the viewport, use this position.\n if (overlayFit.isCompletelyWithinViewport) {\n this._isPushed = false;\n this._applyPosition(pos, originPoint);\n return;\n }\n // If the overlay has flexible dimensions, we can use this position\n // so long as there's enough space for the minimum dimensions.\n if (this._canFitWithFlexibleDimensions(overlayFit, overlayPoint, viewportRect)) {\n // Save positions where the overlay will fit with flexible dimensions. We will use these\n // if none of the positions fit *without* flexible dimensions.\n flexibleFits.push({\n position: pos,\n origin: originPoint,\n overlayRect,\n boundingBoxRect: this._calculateBoundingBoxRect(originPoint, pos),\n });\n continue;\n }\n // If the current preferred position does not fit on the screen, remember the position\n // if it has more visible area on-screen than we've seen and move onto the next preferred\n // position.\n if (!fallback || fallback.overlayFit.visibleArea < overlayFit.visibleArea) {\n fallback = { overlayFit, overlayPoint, originPoint, position: pos, overlayRect };\n }\n }\n // If there are any positions where the overlay would fit with flexible dimensions, choose the\n // one that has the greatest area available modified by the position's weight\n if (flexibleFits.length) {\n let bestFit = null;\n let bestScore = -1;\n for (const fit of flexibleFits) {\n const score = fit.boundingBoxRect.width * fit.boundingBoxRect.height * (fit.position.weight || 1);\n if (score > bestScore) {\n bestScore = score;\n bestFit = fit;\n }\n }\n this._isPushed = false;\n this._applyPosition(bestFit.position, bestFit.origin);\n return;\n }\n // When none of the preferred positions fit within the viewport, take the position\n // that went off-screen the least and attempt to push it on-screen.\n if (this._canPush) {\n // TODO(jelbourn): after pushing, the opening \"direction\" of the overlay might not make sense.\n this._isPushed = true;\n this._applyPosition(fallback.position, fallback.originPoint);\n return;\n }\n // All options for getting the overlay within the viewport have been exhausted, so go with the\n // position that went off-screen the least.\n this._applyPosition(fallback.position, fallback.originPoint);\n }\n detach() {\n this._clearPanelClasses();\n this._lastPosition = null;\n this._previousPushAmount = null;\n this._resizeSubscription.unsubscribe();\n }\n /** Cleanup after the element gets destroyed. */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n // We can't use `_resetBoundingBoxStyles` here, because it resets\n // some properties to zero, rather than removing them.\n if (this._boundingBox) {\n extendStyles(this._boundingBox.style, {\n top: '',\n left: '',\n right: '',\n bottom: '',\n height: '',\n width: '',\n alignItems: '',\n justifyContent: '',\n });\n }\n if (this._pane) {\n this._resetOverlayElementStyles();\n }\n if (this._overlayRef) {\n this._overlayRef.hostElement.classList.remove(boundingBoxClass);\n }\n this.detach();\n this._positionChanges.complete();\n this._overlayRef = this._boundingBox = null;\n this._isDisposed = true;\n }\n /**\n * This re-aligns the overlay element with the trigger in its last calculated position,\n * even if a position higher in the \"preferred positions\" list would now fit. This\n * allows one to re-align the panel without changing the orientation of the panel.\n */\n reapplyLastPosition() {\n if (!this._isDisposed && (!this._platform || this._platform.isBrowser)) {\n this._originRect = this._getOriginRect();\n this._overlayRect = this._pane.getBoundingClientRect();\n this._viewportRect = this._getNarrowedViewportRect();\n const lastPosition = this._lastPosition || this._preferredPositions[0];\n const originPoint = this._getOriginPoint(this._originRect, lastPosition);\n this._applyPosition(lastPosition, originPoint);\n }\n }\n /**\n * Sets the list of Scrollable containers that host the origin element so that\n * on reposition we can evaluate if it or the overlay has been clipped or outside view. Every\n * Scrollable must be an ancestor element of the strategy's origin element.\n */\n withScrollableContainers(scrollables) {\n this._scrollables = scrollables;\n return this;\n }\n /**\n * Adds new preferred positions.\n * @param positions List of positions options for this overlay.\n */\n withPositions(positions) {\n this._preferredPositions = positions;\n // If the last calculated position object isn't part of the positions anymore, clear\n // it in order to avoid it being picked up if the consumer tries to re-apply.\n if (positions.indexOf(this._lastPosition) === -1) {\n this._lastPosition = null;\n }\n this._validatePositions();\n return this;\n }\n /**\n * Sets a minimum distance the overlay may be positioned to the edge of the viewport.\n * @param margin Required margin between the overlay and the viewport edge in pixels.\n */\n withViewportMargin(margin) {\n this._viewportMargin = margin;\n return this;\n }\n /** Sets whether the overlay's width and height can be constrained to fit within the viewport. */\n withFlexibleDimensions(flexibleDimensions = true) {\n this._hasFlexibleDimensions = flexibleDimensions;\n return this;\n }\n /** Sets whether the overlay can grow after the initial open via flexible width/height. */\n withGrowAfterOpen(growAfterOpen = true) {\n this._growAfterOpen = growAfterOpen;\n return this;\n }\n /** Sets whether the overlay can be pushed on-screen if none of the provided positions fit. */\n withPush(canPush = true) {\n this._canPush = canPush;\n return this;\n }\n /**\n * Sets whether the overlay's position should be locked in after it is positioned\n * initially. When an overlay is locked in, it won't attempt to reposition itself\n * when the position is re-applied (e.g. when the user scrolls away).\n * @param isLocked Whether the overlay should locked in.\n */\n withLockedPosition(isLocked = true) {\n this._positionLocked = isLocked;\n return this;\n }\n /**\n * Sets the origin, relative to which to position the overlay.\n * Using an element origin is useful for building components that need to be positioned\n * relatively to a trigger (e.g. dropdown menus or tooltips), whereas using a point can be\n * used for cases like contextual menus which open relative to the user's pointer.\n * @param origin Reference to the new origin.\n */\n setOrigin(origin) {\n this._origin = origin;\n return this;\n }\n /**\n * Sets the default offset for the overlay's connection point on the x-axis.\n * @param offset New offset in the X axis.\n */\n withDefaultOffsetX(offset) {\n this._offsetX = offset;\n return this;\n }\n /**\n * Sets the default offset for the overlay's connection point on the y-axis.\n * @param offset New offset in the Y axis.\n */\n withDefaultOffsetY(offset) {\n this._offsetY = offset;\n return this;\n }\n /**\n * Configures that the position strategy should set a `transform-origin` on some elements\n * inside the overlay, depending on the current position that is being applied. This is\n * useful for the cases where the origin of an animation can change depending on the\n * alignment of the overlay.\n * @param selector CSS selector that will be used to find the target\n * elements onto which to set the transform origin.\n */\n withTransformOriginOn(selector) {\n this._transformOriginSelector = selector;\n return this;\n }\n /**\n * Gets the (x, y) coordinate of a connection point on the origin based on a relative position.\n */\n _getOriginPoint(originRect, pos) {\n let x;\n if (pos.originX == 'center') {\n // Note: when centering we should always use the `left`\n // offset, otherwise the position will be wrong in RTL.\n x = originRect.left + originRect.width / 2;\n }\n else {\n const startX = this._isRtl() ? originRect.right : originRect.left;\n const endX = this._isRtl() ? originRect.left : originRect.right;\n x = pos.originX == 'start' ? startX : endX;\n }\n let y;\n if (pos.originY == 'center') {\n y = originRect.top + originRect.height / 2;\n }\n else {\n y = pos.originY == 'top' ? originRect.top : originRect.bottom;\n }\n return { x, y };\n }\n /**\n * Gets the (x, y) coordinate of the top-left corner of the overlay given a given position and\n * origin point to which the overlay should be connected.\n */\n _getOverlayPoint(originPoint, overlayRect, pos) {\n // Calculate the (overlayStartX, overlayStartY), the start of the\n // potential overlay position relative to the origin point.\n let overlayStartX;\n if (pos.overlayX == 'center') {\n overlayStartX = -overlayRect.width / 2;\n }\n else if (pos.overlayX === 'start') {\n overlayStartX = this._isRtl() ? -overlayRect.width : 0;\n }\n else {\n overlayStartX = this._isRtl() ? 0 : -overlayRect.width;\n }\n let overlayStartY;\n if (pos.overlayY == 'center') {\n overlayStartY = -overlayRect.height / 2;\n }\n else {\n overlayStartY = pos.overlayY == 'top' ? 0 : -overlayRect.height;\n }\n // The (x, y) coordinates of the overlay.\n return {\n x: originPoint.x + overlayStartX,\n y: originPoint.y + overlayStartY,\n };\n }\n /** Gets how well an overlay at the given point will fit within the viewport. */\n _getOverlayFit(point, rawOverlayRect, viewport, position) {\n // Round the overlay rect when comparing against the\n // viewport, because the viewport is always rounded.\n const overlay = getRoundedBoundingClientRect(rawOverlayRect);\n let { x, y } = point;\n let offsetX = this._getOffset(position, 'x');\n let offsetY = this._getOffset(position, 'y');\n // Account for the offsets since they could push the overlay out of the viewport.\n if (offsetX) {\n x += offsetX;\n }\n if (offsetY) {\n y += offsetY;\n }\n // How much the overlay would overflow at this position, on each side.\n let leftOverflow = 0 - x;\n let rightOverflow = x + overlay.width - viewport.width;\n let topOverflow = 0 - y;\n let bottomOverflow = y + overlay.height - viewport.height;\n // Visible parts of the element on each axis.\n let visibleWidth = this._subtractOverflows(overlay.width, leftOverflow, rightOverflow);\n let visibleHeight = this._subtractOverflows(overlay.height, topOverflow, bottomOverflow);\n let visibleArea = visibleWidth * visibleHeight;\n return {\n visibleArea,\n isCompletelyWithinViewport: overlay.width * overlay.height === visibleArea,\n fitsInViewportVertically: visibleHeight === overlay.height,\n fitsInViewportHorizontally: visibleWidth == overlay.width,\n };\n }\n /**\n * Whether the overlay can fit within the viewport when it may resize either its width or height.\n * @param fit How well the overlay fits in the viewport at some position.\n * @param point The (x, y) coordinates of the overlat at some position.\n * @param viewport The geometry of the viewport.\n */\n _canFitWithFlexibleDimensions(fit, point, viewport) {\n if (this._hasFlexibleDimensions) {\n const availableHeight = viewport.bottom - point.y;\n const availableWidth = viewport.right - point.x;\n const minHeight = getPixelValue(this._overlayRef.getConfig().minHeight);\n const minWidth = getPixelValue(this._overlayRef.getConfig().minWidth);\n const verticalFit = fit.fitsInViewportVertically || (minHeight != null && minHeight <= availableHeight);\n const horizontalFit = fit.fitsInViewportHorizontally || (minWidth != null && minWidth <= availableWidth);\n return verticalFit && horizontalFit;\n }\n return false;\n }\n /**\n * Gets the point at which the overlay can be \"pushed\" on-screen. If the overlay is larger than\n * the viewport, the top-left corner will be pushed on-screen (with overflow occuring on the\n * right and bottom).\n *\n * @param start Starting point from which the overlay is pushed.\n * @param overlay Dimensions of the overlay.\n * @param scrollPosition Current viewport scroll position.\n * @returns The point at which to position the overlay after pushing. This is effectively a new\n * originPoint.\n */\n _pushOverlayOnScreen(start, rawOverlayRect, scrollPosition) {\n // If the position is locked and we've pushed the overlay already, reuse the previous push\n // amount, rather than pushing it again. If we were to continue pushing, the element would\n // remain in the viewport, which goes against the expectations when position locking is enabled.\n if (this._previousPushAmount && this._positionLocked) {\n return {\n x: start.x + this._previousPushAmount.x,\n y: start.y + this._previousPushAmount.y,\n };\n }\n // Round the overlay rect when comparing against the\n // viewport, because the viewport is always rounded.\n const overlay = getRoundedBoundingClientRect(rawOverlayRect);\n const viewport = this._viewportRect;\n // Determine how much the overlay goes outside the viewport on each\n // side, which we'll use to decide which direction to push it.\n const overflowRight = Math.max(start.x + overlay.width - viewport.width, 0);\n const overflowBottom = Math.max(start.y + overlay.height - viewport.height, 0);\n const overflowTop = Math.max(viewport.top - scrollPosition.top - start.y, 0);\n const overflowLeft = Math.max(viewport.left - scrollPosition.left - start.x, 0);\n // Amount by which to push the overlay in each axis such that it remains on-screen.\n let pushX = 0;\n let pushY = 0;\n // If the overlay fits completely within the bounds of the viewport, push it from whichever\n // direction is goes off-screen. Otherwise, push the top-left corner such that its in the\n // viewport and allow for the trailing end of the overlay to go out of bounds.\n if (overlay.width <= viewport.width) {\n pushX = overflowLeft || -overflowRight;\n }\n else {\n pushX = start.x < this._viewportMargin ? viewport.left - scrollPosition.left - start.x : 0;\n }\n if (overlay.height <= viewport.height) {\n pushY = overflowTop || -overflowBottom;\n }\n else {\n pushY = start.y < this._viewportMargin ? viewport.top - scrollPosition.top - start.y : 0;\n }\n this._previousPushAmount = { x: pushX, y: pushY };\n return {\n x: start.x + pushX,\n y: start.y + pushY,\n };\n }\n /**\n * Applies a computed position to the overlay and emits a position change.\n * @param position The position preference\n * @param originPoint The point on the origin element where the overlay is connected.\n */\n _applyPosition(position, originPoint) {\n this._setTransformOrigin(position);\n this._setOverlayElementStyles(originPoint, position);\n this._setBoundingBoxStyles(originPoint, position);\n if (position.panelClass) {\n this._addPanelClasses(position.panelClass);\n }\n // Save the last connected position in case the position needs to be re-calculated.\n this._lastPosition = position;\n // Notify that the position has been changed along with its change properties.\n // We only emit if we've got any subscriptions, because the scroll visibility\n // calculcations can be somewhat expensive.\n if (this._positionChanges.observers.length) {\n const scrollableViewProperties = this._getScrollVisibility();\n const changeEvent = new ConnectedOverlayPositionChange(position, scrollableViewProperties);\n this._positionChanges.next(changeEvent);\n }\n this._isInitialRender = false;\n }\n /** Sets the transform origin based on the configured selector and the passed-in position. */\n _setTransformOrigin(position) {\n if (!this._transformOriginSelector) {\n return;\n }\n const elements = this._boundingBox.querySelectorAll(this._transformOriginSelector);\n let xOrigin;\n let yOrigin = position.overlayY;\n if (position.overlayX === 'center') {\n xOrigin = 'center';\n }\n else if (this._isRtl()) {\n xOrigin = position.overlayX === 'start' ? 'right' : 'left';\n }\n else {\n xOrigin = position.overlayX === 'start' ? 'left' : 'right';\n }\n for (let i = 0; i < elements.length; i++) {\n elements[i].style.transformOrigin = `${xOrigin} ${yOrigin}`;\n }\n }\n /**\n * Gets the position and size of the overlay's sizing container.\n *\n * This method does no measuring and applies no styles so that we can cheaply compute the\n * bounds for all positions and choose the best fit based on these results.\n */\n _calculateBoundingBoxRect(origin, position) {\n const viewport = this._viewportRect;\n const isRtl = this._isRtl();\n let height, top, bottom;\n if (position.overlayY === 'top') {\n // Overlay is opening \"downward\" and thus is bound by the bottom viewport edge.\n top = origin.y;\n height = viewport.height - top + this._viewportMargin;\n }\n else if (position.overlayY === 'bottom') {\n // Overlay is opening \"upward\" and thus is bound by the top viewport edge. We need to add\n // the viewport margin back in, because the viewport rect is narrowed down to remove the\n // margin, whereas the `origin` position is calculated based on its `ClientRect`.\n bottom = viewport.height - origin.y + this._viewportMargin * 2;\n height = viewport.height - bottom + this._viewportMargin;\n }\n else {\n // If neither top nor bottom, it means that the overlay is vertically centered on the\n // origin point. Note that we want the position relative to the viewport, rather than\n // the page, which is why we don't use something like `viewport.bottom - origin.y` and\n // `origin.y - viewport.top`.\n const smallestDistanceToViewportEdge = Math.min(viewport.bottom - origin.y + viewport.top, origin.y);\n const previousHeight = this._lastBoundingBoxSize.height;\n height = smallestDistanceToViewportEdge * 2;\n top = origin.y - smallestDistanceToViewportEdge;\n if (height > previousHeight && !this._isInitialRender && !this._growAfterOpen) {\n top = origin.y - previousHeight / 2;\n }\n }\n // The overlay is opening 'right-ward' (the content flows to the right).\n const isBoundedByRightViewportEdge = (position.overlayX === 'start' && !isRtl) || (position.overlayX === 'end' && isRtl);\n // The overlay is opening 'left-ward' (the content flows to the left).\n const isBoundedByLeftViewportEdge = (position.overlayX === 'end' && !isRtl) || (position.overlayX === 'start' && isRtl);\n let width, left, right;\n if (isBoundedByLeftViewportEdge) {\n right = viewport.width - origin.x + this._viewportMargin;\n width = origin.x - this._viewportMargin;\n }\n else if (isBoundedByRightViewportEdge) {\n left = origin.x;\n width = viewport.right - origin.x;\n }\n else {\n // If neither start nor end, it means that the overlay is horizontally centered on the\n // origin point. Note that we want the position relative to the viewport, rather than\n // the page, which is why we don't use something like `viewport.right - origin.x` and\n // `origin.x - viewport.left`.\n const smallestDistanceToViewportEdge = Math.min(viewport.right - origin.x + viewport.left, origin.x);\n const previousWidth = this._lastBoundingBoxSize.width;\n width = smallestDistanceToViewportEdge * 2;\n left = origin.x - smallestDistanceToViewportEdge;\n if (width > previousWidth && !this._isInitialRender && !this._growAfterOpen) {\n left = origin.x - previousWidth / 2;\n }\n }\n return { top: top, left: left, bottom: bottom, right: right, width, height };\n }\n /**\n * Sets the position and size of the overlay's sizing wrapper. The wrapper is positioned on the\n * origin's connection point and stetches to the bounds of the viewport.\n *\n * @param origin The point on the origin element where the overlay is connected.\n * @param position The position preference\n */\n _setBoundingBoxStyles(origin, position) {\n const boundingBoxRect = this._calculateBoundingBoxRect(origin, position);\n // It's weird if the overlay *grows* while scrolling, so we take the last size into account\n // when applying a new size.\n if (!this._isInitialRender && !this._growAfterOpen) {\n boundingBoxRect.height = Math.min(boundingBoxRect.height, this._lastBoundingBoxSize.height);\n boundingBoxRect.width = Math.min(boundingBoxRect.width, this._lastBoundingBoxSize.width);\n }\n const styles = {};\n if (this._hasExactPosition()) {\n styles.top = styles.left = '0';\n styles.bottom = styles.right = styles.maxHeight = styles.maxWidth = '';\n styles.width = styles.height = '100%';\n }\n else {\n const maxHeight = this._overlayRef.getConfig().maxHeight;\n const maxWidth = this._overlayRef.getConfig().maxWidth;\n styles.height = coerceCssPixelValue(boundingBoxRect.height);\n styles.top = coerceCssPixelValue(boundingBoxRect.top);\n styles.bottom = coerceCssPixelValue(boundingBoxRect.bottom);\n styles.width = coerceCssPixelValue(boundingBoxRect.width);\n styles.left = coerceCssPixelValue(boundingBoxRect.left);\n styles.right = coerceCssPixelValue(boundingBoxRect.right);\n // Push the pane content towards the proper direction.\n if (position.overlayX === 'center') {\n styles.alignItems = 'center';\n }\n else {\n styles.alignItems = position.overlayX === 'end' ? 'flex-end' : 'flex-start';\n }\n if (position.overlayY === 'center') {\n styles.justifyContent = 'center';\n }\n else {\n styles.justifyContent = position.overlayY === 'bottom' ? 'flex-end' : 'flex-start';\n }\n if (maxHeight) {\n styles.maxHeight = coerceCssPixelValue(maxHeight);\n }\n if (maxWidth) {\n styles.maxWidth = coerceCssPixelValue(maxWidth);\n }\n }\n this._lastBoundingBoxSize = boundingBoxRect;\n extendStyles(this._boundingBox.style, styles);\n }\n /** Resets the styles for the bounding box so that a new positioning can be computed. */\n _resetBoundingBoxStyles() {\n extendStyles(this._boundingBox.style, {\n top: '0',\n left: '0',\n right: '0',\n bottom: '0',\n height: '',\n width: '',\n alignItems: '',\n justifyContent: '',\n });\n }\n /** Resets the styles for the overlay pane so that a new positioning can be computed. */\n _resetOverlayElementStyles() {\n extendStyles(this._pane.style, {\n top: '',\n left: '',\n bottom: '',\n right: '',\n position: '',\n transform: '',\n });\n }\n /** Sets positioning styles to the overlay element. */\n _setOverlayElementStyles(originPoint, position) {\n const styles = {};\n const hasExactPosition = this._hasExactPosition();\n const hasFlexibleDimensions = this._hasFlexibleDimensions;\n const config = this._overlayRef.getConfig();\n if (hasExactPosition) {\n const scrollPosition = this._viewportRuler.getViewportScrollPosition();\n extendStyles(styles, this._getExactOverlayY(position, originPoint, scrollPosition));\n extendStyles(styles, this._getExactOverlayX(position, originPoint, scrollPosition));\n }\n else {\n styles.position = 'static';\n }\n // Use a transform to apply the offsets. We do this because the `center` positions rely on\n // being in the normal flex flow and setting a `top` / `left` at all will completely throw\n // off the position. We also can't use margins, because they won't have an effect in some\n // cases where the element doesn't have anything to \"push off of\". Finally, this works\n // better both with flexible and non-flexible positioning.\n let transformString = '';\n let offsetX = this._getOffset(position, 'x');\n let offsetY = this._getOffset(position, 'y');\n if (offsetX) {\n transformString += `translateX(${offsetX}px) `;\n }\n if (offsetY) {\n transformString += `translateY(${offsetY}px)`;\n }\n styles.transform = transformString.trim();\n // If a maxWidth or maxHeight is specified on the overlay, we remove them. We do this because\n // we need these values to both be set to \"100%\" for the automatic flexible sizing to work.\n // The maxHeight and maxWidth are set on the boundingBox in order to enforce the constraint.\n // Note that this doesn't apply when we have an exact position, in which case we do want to\n // apply them because they'll be cleared from the bounding box.\n if (config.maxHeight) {\n if (hasExactPosition) {\n styles.maxHeight = coerceCssPixelValue(config.maxHeight);\n }\n else if (hasFlexibleDimensions) {\n styles.maxHeight = '';\n }\n }\n if (config.maxWidth) {\n if (hasExactPosition) {\n styles.maxWidth = coerceCssPixelValue(config.maxWidth);\n }\n else if (hasFlexibleDimensions) {\n styles.maxWidth = '';\n }\n }\n extendStyles(this._pane.style, styles);\n }\n /** Gets the exact top/bottom for the overlay when not using flexible sizing or when pushing. */\n _getExactOverlayY(position, originPoint, scrollPosition) {\n // Reset any existing styles. This is necessary in case the\n // preferred position has changed since the last `apply`.\n let styles = { top: '', bottom: '' };\n let overlayPoint = this._getOverlayPoint(originPoint, this._overlayRect, position);\n if (this._isPushed) {\n overlayPoint = this._pushOverlayOnScreen(overlayPoint, this._overlayRect, scrollPosition);\n }\n let virtualKeyboardOffset = this._overlayContainer\n .getContainerElement()\n .getBoundingClientRect().top;\n // Normally this would be zero, however when the overlay is attached to an input (e.g. in an\n // autocomplete), mobile browsers will shift everything in order to put the input in the middle\n // of the screen and to make space for the virtual keyboard. We need to account for this offset,\n // otherwise our positioning will be thrown off.\n overlayPoint.y -= virtualKeyboardOffset;\n // We want to set either `top` or `bottom` based on whether the overlay wants to appear\n // above or below the origin and the direction in which the element will expand.\n if (position.overlayY === 'bottom') {\n // When using `bottom`, we adjust the y position such that it is the distance\n // from the bottom of the viewport rather than the top.\n const documentHeight = this._document.documentElement.clientHeight;\n styles.bottom = `${documentHeight - (overlayPoint.y + this._overlayRect.height)}px`;\n }\n else {\n styles.top = coerceCssPixelValue(overlayPoint.y);\n }\n return styles;\n }\n /** Gets the exact left/right for the overlay when not using flexible sizing or when pushing. */\n _getExactOverlayX(position, originPoint, scrollPosition) {\n // Reset any existing styles. This is necessary in case the preferred position has\n // changed since the last `apply`.\n let styles = { left: '', right: '' };\n let overlayPoint = this._getOverlayPoint(originPoint, this._overlayRect, position);\n if (this._isPushed) {\n overlayPoint = this._pushOverlayOnScreen(overlayPoint, this._overlayRect, scrollPosition);\n }\n // We want to set either `left` or `right` based on whether the overlay wants to appear \"before\"\n // or \"after\" the origin, which determines the direction in which the element will expand.\n // For the horizontal axis, the meaning of \"before\" and \"after\" change based on whether the\n // page is in RTL or LTR.\n let horizontalStyleProperty;\n if (this._isRtl()) {\n horizontalStyleProperty = position.overlayX === 'end' ? 'left' : 'right';\n }\n else {\n horizontalStyleProperty = position.overlayX === 'end' ? 'right' : 'left';\n }\n // When we're setting `right`, we adjust the x position such that it is the distance\n // from the right edge of the viewport rather than the left edge.\n if (horizontalStyleProperty === 'right') {\n const documentWidth = this._document.documentElement.clientWidth;\n styles.right = `${documentWidth - (overlayPoint.x + this._overlayRect.width)}px`;\n }\n else {\n styles.left = coerceCssPixelValue(overlayPoint.x);\n }\n return styles;\n }\n /**\n * Gets the view properties of the trigger and overlay, including whether they are clipped\n * or completely outside the view of any of the strategy's scrollables.\n */\n _getScrollVisibility() {\n // Note: needs fresh rects since the position could've changed.\n const originBounds = this._getOriginRect();\n const overlayBounds = this._pane.getBoundingClientRect();\n // TODO(jelbourn): instead of needing all of the client rects for these scrolling containers\n // every time, we should be able to use the scrollTop of the containers if the size of those\n // containers hasn't changed.\n const scrollContainerBounds = this._scrollables.map(scrollable => {\n return scrollable.getElementRef().nativeElement.getBoundingClientRect();\n });\n return {\n isOriginClipped: isElementClippedByScrolling(originBounds, scrollContainerBounds),\n isOriginOutsideView: isElementScrolledOutsideView(originBounds, scrollContainerBounds),\n isOverlayClipped: isElementClippedByScrolling(overlayBounds, scrollContainerBounds),\n isOverlayOutsideView: isElementScrolledOutsideView(overlayBounds, scrollContainerBounds),\n };\n }\n /** Subtracts the amount that an element is overflowing on an axis from its length. */\n _subtractOverflows(length, ...overflows) {\n return overflows.reduce((currentValue, currentOverflow) => {\n return currentValue - Math.max(currentOverflow, 0);\n }, length);\n }\n /** Narrows the given viewport rect by the current _viewportMargin. */\n _getNarrowedViewportRect() {\n // We recalculate the viewport rect here ourselves, rather than using the ViewportRuler,\n // because we want to use the `clientWidth` and `clientHeight` as the base. The difference\n // being that the client properties don't include the scrollbar, as opposed to `innerWidth`\n // and `innerHeight` that do. This is necessary, because the overlay container uses\n // 100% `width` and `height` which don't include the scrollbar either.\n const width = this._document.documentElement.clientWidth;\n const height = this._document.documentElement.clientHeight;\n const scrollPosition = this._viewportRuler.getViewportScrollPosition();\n return {\n top: scrollPosition.top + this._viewportMargin,\n left: scrollPosition.left + this._viewportMargin,\n right: scrollPosition.left + width - this._viewportMargin,\n bottom: scrollPosition.top + height - this._viewportMargin,\n width: width - 2 * this._viewportMargin,\n height: height - 2 * this._viewportMargin,\n };\n }\n /** Whether the we're dealing with an RTL context */\n _isRtl() {\n return this._overlayRef.getDirection() === 'rtl';\n }\n /** Determines whether the overlay uses exact or flexible positioning. */\n _hasExactPosition() {\n return !this._hasFlexibleDimensions || this._isPushed;\n }\n /** Retrieves the offset of a position along the x or y axis. */\n _getOffset(position, axis) {\n if (axis === 'x') {\n // We don't do something like `position['offset' + axis]` in\n // order to avoid breking minifiers that rename properties.\n return position.offsetX == null ? this._offsetX : position.offsetX;\n }\n return position.offsetY == null ? this._offsetY : position.offsetY;\n }\n /** Validates that the current position match the expected values. */\n _validatePositions() {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (!this._preferredPositions.length) {\n throw Error('FlexibleConnectedPositionStrategy: At least one position is required.');\n }\n // TODO(crisbeto): remove these once Angular's template type\n // checking is advanced enough to catch these cases.\n this._preferredPositions.forEach(pair => {\n validateHorizontalPosition('originX', pair.originX);\n validateVerticalPosition('originY', pair.originY);\n validateHorizontalPosition('overlayX', pair.overlayX);\n validateVerticalPosition('overlayY', pair.overlayY);\n });\n }\n }\n /** Adds a single CSS class or an array of classes on the overlay panel. */\n _addPanelClasses(cssClasses) {\n if (this._pane) {\n coerceArray(cssClasses).forEach(cssClass => {\n if (cssClass !== '' && this._appliedPanelClasses.indexOf(cssClass) === -1) {\n this._appliedPanelClasses.push(cssClass);\n this._pane.classList.add(cssClass);\n }\n });\n }\n }\n /** Clears the classes that the position strategy has applied from the overlay panel. */\n _clearPanelClasses() {\n if (this._pane) {\n this._appliedPanelClasses.forEach(cssClass => {\n this._pane.classList.remove(cssClass);\n });\n this._appliedPanelClasses = [];\n }\n }\n /** Returns the ClientRect of the current origin. */\n _getOriginRect() {\n const origin = this._origin;\n if (origin instanceof ElementRef) {\n return origin.nativeElement.getBoundingClientRect();\n }\n // Check for Element so SVG elements are also supported.\n if (origin instanceof Element) {\n return origin.getBoundingClientRect();\n }\n const width = origin.width || 0;\n const height = origin.height || 0;\n // If the origin is a point, return a client rect as if it was a 0x0 element at the point.\n return {\n top: origin.y,\n bottom: origin.y + height,\n left: origin.x,\n right: origin.x + width,\n height,\n width,\n };\n }\n}\n/** Shallow-extends a stylesheet object with another stylesheet object. */\nfunction extendStyles(destination, source) {\n for (let key in source) {\n if (source.hasOwnProperty(key)) {\n destination[key] = source[key];\n }\n }\n return destination;\n}\n/**\n * Extracts the pixel value as a number from a value, if it's a number\n * or a CSS pixel string (e.g. `1337px`). Otherwise returns null.\n */\nfunction getPixelValue(input) {\n if (typeof input !== 'number' && input != null) {\n const [value, units] = input.split(cssUnitPattern);\n return !units || units === 'px' ? parseFloat(value) : null;\n }\n return input || null;\n}\n/**\n * Gets a version of an element's bounding `ClientRect` where all the values are rounded down to\n * the nearest pixel. This allows us to account for the cases where there may be sub-pixel\n * deviations in the `ClientRect` returned by the browser (e.g. when zoomed in with a percentage\n * size, see #21350).\n */\nfunction getRoundedBoundingClientRect(clientRect) {\n return {\n top: Math.floor(clientRect.top),\n right: Math.floor(clientRect.right),\n bottom: Math.floor(clientRect.bottom),\n left: Math.floor(clientRect.left),\n width: Math.floor(clientRect.width),\n height: Math.floor(clientRect.height),\n };\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Class to be added to the overlay pane wrapper. */\nconst wrapperClass = 'cdk-global-overlay-wrapper';\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * explicit position relative to the browser's viewport. We use flexbox, instead of\n * transforms, in order to avoid issues with subpixel rendering which can cause the\n * element to become blurry.\n */\nclass GlobalPositionStrategy {\n constructor() {\n this._cssPosition = 'static';\n this._topOffset = '';\n this._bottomOffset = '';\n this._leftOffset = '';\n this._rightOffset = '';\n this._alignItems = '';\n this._justifyContent = '';\n this._width = '';\n this._height = '';\n }\n attach(overlayRef) {\n const config = overlayRef.getConfig();\n this._overlayRef = overlayRef;\n if (this._width && !config.width) {\n overlayRef.updateSize({ width: this._width });\n }\n if (this._height && !config.height) {\n overlayRef.updateSize({ height: this._height });\n }\n overlayRef.hostElement.classList.add(wrapperClass);\n this._isDisposed = false;\n }\n /**\n * Sets the top position of the overlay. Clears any previously set vertical position.\n * @param value New top offset.\n */\n top(value = '') {\n this._bottomOffset = '';\n this._topOffset = value;\n this._alignItems = 'flex-start';\n return this;\n }\n /**\n * Sets the left position of the overlay. Clears any previously set horizontal position.\n * @param value New left offset.\n */\n left(value = '') {\n this._rightOffset = '';\n this._leftOffset = value;\n this._justifyContent = 'flex-start';\n return this;\n }\n /**\n * Sets the bottom position of the overlay. Clears any previously set vertical position.\n * @param value New bottom offset.\n */\n bottom(value = '') {\n this._topOffset = '';\n this._bottomOffset = value;\n this._alignItems = 'flex-end';\n return this;\n }\n /**\n * Sets the right position of the overlay. Clears any previously set horizontal position.\n * @param value New right offset.\n */\n right(value = '') {\n this._leftOffset = '';\n this._rightOffset = value;\n this._justifyContent = 'flex-end';\n return this;\n }\n /**\n * Sets the overlay width and clears any previously set width.\n * @param value New width for the overlay\n * @deprecated Pass the `width` through the `OverlayConfig`.\n * @breaking-change 8.0.0\n */\n width(value = '') {\n if (this._overlayRef) {\n this._overlayRef.updateSize({ width: value });\n }\n else {\n this._width = value;\n }\n return this;\n }\n /**\n * Sets the overlay height and clears any previously set height.\n * @param value New height for the overlay\n * @deprecated Pass the `height` through the `OverlayConfig`.\n * @breaking-change 8.0.0\n */\n height(value = '') {\n if (this._overlayRef) {\n this._overlayRef.updateSize({ height: value });\n }\n else {\n this._height = value;\n }\n return this;\n }\n /**\n * Centers the overlay horizontally with an optional offset.\n * Clears any previously set horizontal position.\n *\n * @param offset Overlay offset from the horizontal center.\n */\n centerHorizontally(offset = '') {\n this.left(offset);\n this._justifyContent = 'center';\n return this;\n }\n /**\n * Centers the overlay vertically with an optional offset.\n * Clears any previously set vertical position.\n *\n * @param offset Overlay offset from the vertical center.\n */\n centerVertically(offset = '') {\n this.top(offset);\n this._alignItems = 'center';\n return this;\n }\n /**\n * Apply the position to the element.\n * @docs-private\n */\n apply() {\n // Since the overlay ref applies the strategy asynchronously, it could\n // have been disposed before it ends up being applied. If that is the\n // case, we shouldn't do anything.\n if (!this._overlayRef || !this._overlayRef.hasAttached()) {\n return;\n }\n const styles = this._overlayRef.overlayElement.style;\n const parentStyles = this._overlayRef.hostElement.style;\n const config = this._overlayRef.getConfig();\n const { width, height, maxWidth, maxHeight } = config;\n const shouldBeFlushHorizontally = (width === '100%' || width === '100vw') &&\n (!maxWidth || maxWidth === '100%' || maxWidth === '100vw');\n const shouldBeFlushVertically = (height === '100%' || height === '100vh') &&\n (!maxHeight || maxHeight === '100%' || maxHeight === '100vh');\n styles.position = this._cssPosition;\n styles.marginLeft = shouldBeFlushHorizontally ? '0' : this._leftOffset;\n styles.marginTop = shouldBeFlushVertically ? '0' : this._topOffset;\n styles.marginBottom = this._bottomOffset;\n styles.marginRight = this._rightOffset;\n if (shouldBeFlushHorizontally) {\n parentStyles.justifyContent = 'flex-start';\n }\n else if (this._justifyContent === 'center') {\n parentStyles.justifyContent = 'center';\n }\n else if (this._overlayRef.getConfig().direction === 'rtl') {\n // In RTL the browser will invert `flex-start` and `flex-end` automatically, but we\n // don't want that because our positioning is explicitly `left` and `right`, hence\n // why we do another inversion to ensure that the overlay stays in the same position.\n // TODO: reconsider this if we add `start` and `end` methods.\n if (this._justifyContent === 'flex-start') {\n parentStyles.justifyContent = 'flex-end';\n }\n else if (this._justifyContent === 'flex-end') {\n parentStyles.justifyContent = 'flex-start';\n }\n }\n else {\n parentStyles.justifyContent = this._justifyContent;\n }\n parentStyles.alignItems = shouldBeFlushVertically ? 'flex-start' : this._alignItems;\n }\n /**\n * Cleans up the DOM changes from the position strategy.\n * @docs-private\n */\n dispose() {\n if (this._isDisposed || !this._overlayRef) {\n return;\n }\n const styles = this._overlayRef.overlayElement.style;\n const parent = this._overlayRef.hostElement;\n const parentStyles = parent.style;\n parent.classList.remove(wrapperClass);\n parentStyles.justifyContent =\n parentStyles.alignItems =\n styles.marginTop =\n styles.marginBottom =\n styles.marginLeft =\n styles.marginRight =\n styles.position =\n '';\n this._overlayRef = null;\n this._isDisposed = true;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Builder for overlay position strategy. */\nclass OverlayPositionBuilder {\n constructor(_viewportRuler, _document, _platform, _overlayContainer) {\n this._viewportRuler = _viewportRuler;\n this._document = _document;\n this._platform = _platform;\n this._overlayContainer = _overlayContainer;\n }\n /**\n * Creates a global position strategy.\n */\n global() {\n return new GlobalPositionStrategy();\n }\n /**\n * Creates a flexible position strategy.\n * @param origin Origin relative to which to position the overlay.\n */\n flexibleConnectedTo(origin) {\n return new FlexibleConnectedPositionStrategy(origin, this._viewportRuler, this._document, this._platform, this._overlayContainer);\n }\n}\nOverlayPositionBuilder.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayPositionBuilder, deps: [{ token: i1.ViewportRuler }, { token: DOCUMENT }, { token: i1$1.Platform }, { token: OverlayContainer }], target: i0.ɵɵFactoryTarget.Injectable });\nOverlayPositionBuilder.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayPositionBuilder, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayPositionBuilder, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.ViewportRuler }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: i1$1.Platform }, { type: OverlayContainer }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Next overlay unique ID. */\nlet nextUniqueId = 0;\n// Note that Overlay is *not* scoped to the app root because of the ComponentFactoryResolver\n// which needs to be different depending on where OverlayModule is imported.\n/**\n * Service to create Overlays. Overlays are dynamically added pieces of floating UI, meant to be\n * used as a low-level building block for other components. Dialogs, tooltips, menus,\n * selects, etc. can all be built using overlays. The service should primarily be used by authors\n * of re-usable components rather than developers building end-user applications.\n *\n * An overlay *is* a PortalOutlet, so any kind of Portal can be loaded into one.\n */\nclass Overlay {\n constructor(\n /** Scrolling strategies that can be used when creating an overlay. */\n scrollStrategies, _overlayContainer, _componentFactoryResolver, _positionBuilder, _keyboardDispatcher, _injector, _ngZone, _document, _directionality, _location, _outsideClickDispatcher) {\n this.scrollStrategies = scrollStrategies;\n this._overlayContainer = _overlayContainer;\n this._componentFactoryResolver = _componentFactoryResolver;\n this._positionBuilder = _positionBuilder;\n this._keyboardDispatcher = _keyboardDispatcher;\n this._injector = _injector;\n this._ngZone = _ngZone;\n this._document = _document;\n this._directionality = _directionality;\n this._location = _location;\n this._outsideClickDispatcher = _outsideClickDispatcher;\n }\n /**\n * Creates an overlay.\n * @param config Configuration applied to the overlay.\n * @returns Reference to the created overlay.\n */\n create(config) {\n const host = this._createHostElement();\n const pane = this._createPaneElement(host);\n const portalOutlet = this._createPortalOutlet(pane);\n const overlayConfig = new OverlayConfig(config);\n overlayConfig.direction = overlayConfig.direction || this._directionality.value;\n return new OverlayRef(portalOutlet, host, pane, overlayConfig, this._ngZone, this._keyboardDispatcher, this._document, this._location, this._outsideClickDispatcher);\n }\n /**\n * Gets a position builder that can be used, via fluent API,\n * to construct and configure a position strategy.\n * @returns An overlay position builder.\n */\n position() {\n return this._positionBuilder;\n }\n /**\n * Creates the DOM element for an overlay and appends it to the overlay container.\n * @returns Newly-created pane element\n */\n _createPaneElement(host) {\n const pane = this._document.createElement('div');\n pane.id = `cdk-overlay-${nextUniqueId++}`;\n pane.classList.add('cdk-overlay-pane');\n host.appendChild(pane);\n return pane;\n }\n /**\n * Creates the host element that wraps around an overlay\n * and can be used for advanced positioning.\n * @returns Newly-create host element.\n */\n _createHostElement() {\n const host = this._document.createElement('div');\n this._overlayContainer.getContainerElement().appendChild(host);\n return host;\n }\n /**\n * Create a DomPortalOutlet into which the overlay content can be loaded.\n * @param pane The DOM element to turn into a portal outlet.\n * @returns A portal outlet for the given DOM element.\n */\n _createPortalOutlet(pane) {\n // We have to resolve the ApplicationRef later in order to allow people\n // to use overlay-based providers during app initialization.\n if (!this._appRef) {\n this._appRef = this._injector.get(ApplicationRef);\n }\n return new DomPortalOutlet(pane, this._componentFactoryResolver, this._appRef, this._injector, this._document);\n }\n}\nOverlay.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: Overlay, deps: [{ token: ScrollStrategyOptions }, { token: OverlayContainer }, { token: i0.ComponentFactoryResolver }, { token: OverlayPositionBuilder }, { token: OverlayKeyboardDispatcher }, { token: i0.Injector }, { token: i0.NgZone }, { token: DOCUMENT }, { token: i5.Directionality }, { token: i6.Location }, { token: OverlayOutsideClickDispatcher }], target: i0.ɵɵFactoryTarget.Injectable });\nOverlay.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: Overlay });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: Overlay, decorators: [{\n type: Injectable\n }], ctorParameters: function () { return [{ type: ScrollStrategyOptions }, { type: OverlayContainer }, { type: i0.ComponentFactoryResolver }, { type: OverlayPositionBuilder }, { type: OverlayKeyboardDispatcher }, { type: i0.Injector }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: i5.Directionality }, { type: i6.Location }, { type: OverlayOutsideClickDispatcher }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Default set of positions for the overlay. Follows the behavior of a dropdown. */\nconst defaultPositionList = [\n {\n originX: 'start',\n originY: 'bottom',\n overlayX: 'start',\n overlayY: 'top',\n },\n {\n originX: 'start',\n originY: 'top',\n overlayX: 'start',\n overlayY: 'bottom',\n },\n {\n originX: 'end',\n originY: 'top',\n overlayX: 'end',\n overlayY: 'bottom',\n },\n {\n originX: 'end',\n originY: 'bottom',\n overlayX: 'end',\n overlayY: 'top',\n },\n];\n/** Injection token that determines the scroll handling while the connected overlay is open. */\nconst CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY = new InjectionToken('cdk-connected-overlay-scroll-strategy');\n/**\n * Directive applied to an element to make it usable as an origin for an Overlay using a\n * ConnectedPositionStrategy.\n */\nclass CdkOverlayOrigin {\n constructor(\n /** Reference to the element on which the directive is applied. */\n elementRef) {\n this.elementRef = elementRef;\n }\n}\nCdkOverlayOrigin.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkOverlayOrigin, deps: [{ token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Directive });\nCdkOverlayOrigin.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkOverlayOrigin, selector: \"[cdk-overlay-origin], [overlay-origin], [cdkOverlayOrigin]\", exportAs: [\"cdkOverlayOrigin\"], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkOverlayOrigin, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdk-overlay-origin], [overlay-origin], [cdkOverlayOrigin]',\n exportAs: 'cdkOverlayOrigin',\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }]; } });\n/**\n * Directive to facilitate declarative creation of an\n * Overlay using a FlexibleConnectedPositionStrategy.\n */\nclass CdkConnectedOverlay {\n // TODO(jelbourn): inputs for size, scroll behavior, animation, etc.\n constructor(_overlay, templateRef, viewContainerRef, scrollStrategyFactory, _dir) {\n this._overlay = _overlay;\n this._dir = _dir;\n this._hasBackdrop = false;\n this._lockPosition = false;\n this._growAfterOpen = false;\n this._flexibleDimensions = false;\n this._push = false;\n this._backdropSubscription = Subscription.EMPTY;\n this._attachSubscription = Subscription.EMPTY;\n this._detachSubscription = Subscription.EMPTY;\n this._positionSubscription = Subscription.EMPTY;\n /** Margin between the overlay and the viewport edges. */\n this.viewportMargin = 0;\n /** Whether the overlay is open. */\n this.open = false;\n /** Whether the overlay can be closed by user interaction. */\n this.disableClose = false;\n /** Event emitted when the backdrop is clicked. */\n this.backdropClick = new EventEmitter();\n /** Event emitted when the position has changed. */\n this.positionChange = new EventEmitter();\n /** Event emitted when the overlay has been attached. */\n this.attach = new EventEmitter();\n /** Event emitted when the overlay has been detached. */\n this.detach = new EventEmitter();\n /** Emits when there are keyboard events that are targeted at the overlay. */\n this.overlayKeydown = new EventEmitter();\n /** Emits when there are mouse outside click events that are targeted at the overlay. */\n this.overlayOutsideClick = new EventEmitter();\n this._templatePortal = new TemplatePortal(templateRef, viewContainerRef);\n this._scrollStrategyFactory = scrollStrategyFactory;\n this.scrollStrategy = this._scrollStrategyFactory();\n }\n /** The offset in pixels for the overlay connection point on the x-axis */\n get offsetX() {\n return this._offsetX;\n }\n set offsetX(offsetX) {\n this._offsetX = offsetX;\n if (this._position) {\n this._updatePositionStrategy(this._position);\n }\n }\n /** The offset in pixels for the overlay connection point on the y-axis */\n get offsetY() {\n return this._offsetY;\n }\n set offsetY(offsetY) {\n this._offsetY = offsetY;\n if (this._position) {\n this._updatePositionStrategy(this._position);\n }\n }\n /** Whether or not the overlay should attach a backdrop. */\n get hasBackdrop() {\n return this._hasBackdrop;\n }\n set hasBackdrop(value) {\n this._hasBackdrop = coerceBooleanProperty(value);\n }\n /** Whether or not the overlay should be locked when scrolling. */\n get lockPosition() {\n return this._lockPosition;\n }\n set lockPosition(value) {\n this._lockPosition = coerceBooleanProperty(value);\n }\n /** Whether the overlay's width and height can be constrained to fit within the viewport. */\n get flexibleDimensions() {\n return this._flexibleDimensions;\n }\n set flexibleDimensions(value) {\n this._flexibleDimensions = coerceBooleanProperty(value);\n }\n /** Whether the overlay can grow after the initial open when flexible positioning is turned on. */\n get growAfterOpen() {\n return this._growAfterOpen;\n }\n set growAfterOpen(value) {\n this._growAfterOpen = coerceBooleanProperty(value);\n }\n /** Whether the overlay can be pushed on-screen if none of the provided positions fit. */\n get push() {\n return this._push;\n }\n set push(value) {\n this._push = coerceBooleanProperty(value);\n }\n /** The associated overlay reference. */\n get overlayRef() {\n return this._overlayRef;\n }\n /** The element's layout direction. */\n get dir() {\n return this._dir ? this._dir.value : 'ltr';\n }\n ngOnDestroy() {\n this._attachSubscription.unsubscribe();\n this._detachSubscription.unsubscribe();\n this._backdropSubscription.unsubscribe();\n this._positionSubscription.unsubscribe();\n if (this._overlayRef) {\n this._overlayRef.dispose();\n }\n }\n ngOnChanges(changes) {\n if (this._position) {\n this._updatePositionStrategy(this._position);\n this._overlayRef.updateSize({\n width: this.width,\n minWidth: this.minWidth,\n height: this.height,\n minHeight: this.minHeight,\n });\n if (changes['origin'] && this.open) {\n this._position.apply();\n }\n }\n if (changes['open']) {\n this.open ? this._attachOverlay() : this._detachOverlay();\n }\n }\n /** Creates an overlay */\n _createOverlay() {\n if (!this.positions || !this.positions.length) {\n this.positions = defaultPositionList;\n }\n const overlayRef = (this._overlayRef = this._overlay.create(this._buildConfig()));\n this._attachSubscription = overlayRef.attachments().subscribe(() => this.attach.emit());\n this._detachSubscription = overlayRef.detachments().subscribe(() => this.detach.emit());\n overlayRef.keydownEvents().subscribe((event) => {\n this.overlayKeydown.next(event);\n if (event.keyCode === ESCAPE && !this.disableClose && !hasModifierKey(event)) {\n event.preventDefault();\n this._detachOverlay();\n }\n });\n this._overlayRef.outsidePointerEvents().subscribe((event) => {\n this.overlayOutsideClick.next(event);\n });\n }\n /** Builds the overlay config based on the directive's inputs */\n _buildConfig() {\n const positionStrategy = (this._position =\n this.positionStrategy || this._createPositionStrategy());\n const overlayConfig = new OverlayConfig({\n direction: this._dir,\n positionStrategy,\n scrollStrategy: this.scrollStrategy,\n hasBackdrop: this.hasBackdrop,\n });\n if (this.width || this.width === 0) {\n overlayConfig.width = this.width;\n }\n if (this.height || this.height === 0) {\n overlayConfig.height = this.height;\n }\n if (this.minWidth || this.minWidth === 0) {\n overlayConfig.minWidth = this.minWidth;\n }\n if (this.minHeight || this.minHeight === 0) {\n overlayConfig.minHeight = this.minHeight;\n }\n if (this.backdropClass) {\n overlayConfig.backdropClass = this.backdropClass;\n }\n if (this.panelClass) {\n overlayConfig.panelClass = this.panelClass;\n }\n return overlayConfig;\n }\n /** Updates the state of a position strategy, based on the values of the directive inputs. */\n _updatePositionStrategy(positionStrategy) {\n const positions = this.positions.map(currentPosition => ({\n originX: currentPosition.originX,\n originY: currentPosition.originY,\n overlayX: currentPosition.overlayX,\n overlayY: currentPosition.overlayY,\n offsetX: currentPosition.offsetX || this.offsetX,\n offsetY: currentPosition.offsetY || this.offsetY,\n panelClass: currentPosition.panelClass || undefined,\n }));\n return positionStrategy\n .setOrigin(this._getFlexibleConnectedPositionStrategyOrigin())\n .withPositions(positions)\n .withFlexibleDimensions(this.flexibleDimensions)\n .withPush(this.push)\n .withGrowAfterOpen(this.growAfterOpen)\n .withViewportMargin(this.viewportMargin)\n .withLockedPosition(this.lockPosition)\n .withTransformOriginOn(this.transformOriginSelector);\n }\n /** Returns the position strategy of the overlay to be set on the overlay config */\n _createPositionStrategy() {\n const strategy = this._overlay\n .position()\n .flexibleConnectedTo(this._getFlexibleConnectedPositionStrategyOrigin());\n this._updatePositionStrategy(strategy);\n return strategy;\n }\n _getFlexibleConnectedPositionStrategyOrigin() {\n if (this.origin instanceof CdkOverlayOrigin) {\n return this.origin.elementRef;\n }\n else {\n return this.origin;\n }\n }\n /** Attaches the overlay and subscribes to backdrop clicks if backdrop exists */\n _attachOverlay() {\n if (!this._overlayRef) {\n this._createOverlay();\n }\n else {\n // Update the overlay size, in case the directive's inputs have changed\n this._overlayRef.getConfig().hasBackdrop = this.hasBackdrop;\n }\n if (!this._overlayRef.hasAttached()) {\n this._overlayRef.attach(this._templatePortal);\n }\n if (this.hasBackdrop) {\n this._backdropSubscription = this._overlayRef.backdropClick().subscribe(event => {\n this.backdropClick.emit(event);\n });\n }\n else {\n this._backdropSubscription.unsubscribe();\n }\n this._positionSubscription.unsubscribe();\n // Only subscribe to `positionChanges` if requested, because putting\n // together all the information for it can be expensive.\n if (this.positionChange.observers.length > 0) {\n this._positionSubscription = this._position.positionChanges\n .pipe(takeWhile(() => this.positionChange.observers.length > 0))\n .subscribe(position => {\n this.positionChange.emit(position);\n if (this.positionChange.observers.length === 0) {\n this._positionSubscription.unsubscribe();\n }\n });\n }\n }\n /** Detaches the overlay and unsubscribes to backdrop clicks if backdrop exists */\n _detachOverlay() {\n if (this._overlayRef) {\n this._overlayRef.detach();\n }\n this._backdropSubscription.unsubscribe();\n this._positionSubscription.unsubscribe();\n }\n}\nCdkConnectedOverlay.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkConnectedOverlay, deps: [{ token: Overlay }, { token: i0.TemplateRef }, { token: i0.ViewContainerRef }, { token: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY }, { token: i5.Directionality, optional: true }], target: i0.ɵɵFactoryTarget.Directive });\nCdkConnectedOverlay.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkConnectedOverlay, selector: \"[cdk-connected-overlay], [connected-overlay], [cdkConnectedOverlay]\", inputs: { origin: [\"cdkConnectedOverlayOrigin\", \"origin\"], positions: [\"cdkConnectedOverlayPositions\", \"positions\"], positionStrategy: [\"cdkConnectedOverlayPositionStrategy\", \"positionStrategy\"], offsetX: [\"cdkConnectedOverlayOffsetX\", \"offsetX\"], offsetY: [\"cdkConnectedOverlayOffsetY\", \"offsetY\"], width: [\"cdkConnectedOverlayWidth\", \"width\"], height: [\"cdkConnectedOverlayHeight\", \"height\"], minWidth: [\"cdkConnectedOverlayMinWidth\", \"minWidth\"], minHeight: [\"cdkConnectedOverlayMinHeight\", \"minHeight\"], backdropClass: [\"cdkConnectedOverlayBackdropClass\", \"backdropClass\"], panelClass: [\"cdkConnectedOverlayPanelClass\", \"panelClass\"], viewportMargin: [\"cdkConnectedOverlayViewportMargin\", \"viewportMargin\"], scrollStrategy: [\"cdkConnectedOverlayScrollStrategy\", \"scrollStrategy\"], open: [\"cdkConnectedOverlayOpen\", \"open\"], disableClose: [\"cdkConnectedOverlayDisableClose\", \"disableClose\"], transformOriginSelector: [\"cdkConnectedOverlayTransformOriginOn\", \"transformOriginSelector\"], hasBackdrop: [\"cdkConnectedOverlayHasBackdrop\", \"hasBackdrop\"], lockPosition: [\"cdkConnectedOverlayLockPosition\", \"lockPosition\"], flexibleDimensions: [\"cdkConnectedOverlayFlexibleDimensions\", \"flexibleDimensions\"], growAfterOpen: [\"cdkConnectedOverlayGrowAfterOpen\", \"growAfterOpen\"], push: [\"cdkConnectedOverlayPush\", \"push\"] }, outputs: { backdropClick: \"backdropClick\", positionChange: \"positionChange\", attach: \"attach\", detach: \"detach\", overlayKeydown: \"overlayKeydown\", overlayOutsideClick: \"overlayOutsideClick\" }, exportAs: [\"cdkConnectedOverlay\"], usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkConnectedOverlay, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdk-connected-overlay], [connected-overlay], [cdkConnectedOverlay]',\n exportAs: 'cdkConnectedOverlay',\n }]\n }], ctorParameters: function () { return [{ type: Overlay }, { type: i0.TemplateRef }, { type: i0.ViewContainerRef }, { type: undefined, decorators: [{\n type: Inject,\n args: [CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY]\n }] }, { type: i5.Directionality, decorators: [{\n type: Optional\n }] }]; }, propDecorators: { origin: [{\n type: Input,\n args: ['cdkConnectedOverlayOrigin']\n }], positions: [{\n type: Input,\n args: ['cdkConnectedOverlayPositions']\n }], positionStrategy: [{\n type: Input,\n args: ['cdkConnectedOverlayPositionStrategy']\n }], offsetX: [{\n type: Input,\n args: ['cdkConnectedOverlayOffsetX']\n }], offsetY: [{\n type: Input,\n args: ['cdkConnectedOverlayOffsetY']\n }], width: [{\n type: Input,\n args: ['cdkConnectedOverlayWidth']\n }], height: [{\n type: Input,\n args: ['cdkConnectedOverlayHeight']\n }], minWidth: [{\n type: Input,\n args: ['cdkConnectedOverlayMinWidth']\n }], minHeight: [{\n type: Input,\n args: ['cdkConnectedOverlayMinHeight']\n }], backdropClass: [{\n type: Input,\n args: ['cdkConnectedOverlayBackdropClass']\n }], panelClass: [{\n type: Input,\n args: ['cdkConnectedOverlayPanelClass']\n }], viewportMargin: [{\n type: Input,\n args: ['cdkConnectedOverlayViewportMargin']\n }], scrollStrategy: [{\n type: Input,\n args: ['cdkConnectedOverlayScrollStrategy']\n }], open: [{\n type: Input,\n args: ['cdkConnectedOverlayOpen']\n }], disableClose: [{\n type: Input,\n args: ['cdkConnectedOverlayDisableClose']\n }], transformOriginSelector: [{\n type: Input,\n args: ['cdkConnectedOverlayTransformOriginOn']\n }], hasBackdrop: [{\n type: Input,\n args: ['cdkConnectedOverlayHasBackdrop']\n }], lockPosition: [{\n type: Input,\n args: ['cdkConnectedOverlayLockPosition']\n }], flexibleDimensions: [{\n type: Input,\n args: ['cdkConnectedOverlayFlexibleDimensions']\n }], growAfterOpen: [{\n type: Input,\n args: ['cdkConnectedOverlayGrowAfterOpen']\n }], push: [{\n type: Input,\n args: ['cdkConnectedOverlayPush']\n }], backdropClick: [{\n type: Output\n }], positionChange: [{\n type: Output\n }], attach: [{\n type: Output\n }], detach: [{\n type: Output\n }], overlayKeydown: [{\n type: Output\n }], overlayOutsideClick: [{\n type: Output\n }] } });\n/** @docs-private */\nfunction CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {\n return () => overlay.scrollStrategies.reposition();\n}\n/** @docs-private */\nconst CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER = {\n provide: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY,\n deps: [Overlay],\n useFactory: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY,\n};\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass OverlayModule {\n}\nOverlayModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nOverlayModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayModule, declarations: [CdkConnectedOverlay, CdkOverlayOrigin], imports: [BidiModule, PortalModule, ScrollingModule], exports: [CdkConnectedOverlay, CdkOverlayOrigin, ScrollingModule] });\nOverlayModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayModule, providers: [Overlay, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER], imports: [[BidiModule, PortalModule, ScrollingModule], ScrollingModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: OverlayModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [BidiModule, PortalModule, ScrollingModule],\n exports: [CdkConnectedOverlay, CdkOverlayOrigin, ScrollingModule],\n declarations: [CdkConnectedOverlay, CdkOverlayOrigin],\n providers: [Overlay, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Alternative to OverlayContainer that supports correct displaying of overlay elements in\n * Fullscreen mode\n * https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullScreen\n *\n * Should be provided in the root component.\n */\nclass FullscreenOverlayContainer extends OverlayContainer {\n constructor(_document, platform) {\n super(_document, platform);\n }\n ngOnDestroy() {\n super.ngOnDestroy();\n if (this._fullScreenEventName && this._fullScreenListener) {\n this._document.removeEventListener(this._fullScreenEventName, this._fullScreenListener);\n }\n }\n _createContainer() {\n super._createContainer();\n this._adjustParentForFullscreenChange();\n this._addFullscreenChangeListener(() => this._adjustParentForFullscreenChange());\n }\n _adjustParentForFullscreenChange() {\n if (!this._containerElement) {\n return;\n }\n const fullscreenElement = this.getFullscreenElement();\n const parent = fullscreenElement || this._document.body;\n parent.appendChild(this._containerElement);\n }\n _addFullscreenChangeListener(fn) {\n const eventName = this._getEventName();\n if (eventName) {\n if (this._fullScreenListener) {\n this._document.removeEventListener(eventName, this._fullScreenListener);\n }\n this._document.addEventListener(eventName, fn);\n this._fullScreenListener = fn;\n }\n }\n _getEventName() {\n if (!this._fullScreenEventName) {\n const _document = this._document;\n if (_document.fullscreenEnabled) {\n this._fullScreenEventName = 'fullscreenchange';\n }\n else if (_document.webkitFullscreenEnabled) {\n this._fullScreenEventName = 'webkitfullscreenchange';\n }\n else if (_document.mozFullScreenEnabled) {\n this._fullScreenEventName = 'mozfullscreenchange';\n }\n else if (_document.msFullscreenEnabled) {\n this._fullScreenEventName = 'MSFullscreenChange';\n }\n }\n return this._fullScreenEventName;\n }\n /**\n * When the page is put into fullscreen mode, a specific element is specified.\n * Only that element and its children are visible when in fullscreen mode.\n */\n getFullscreenElement() {\n const _document = this._document;\n return (_document.fullscreenElement ||\n _document.webkitFullscreenElement ||\n _document.mozFullScreenElement ||\n _document.msFullscreenElement ||\n null);\n }\n}\nFullscreenOverlayContainer.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FullscreenOverlayContainer, deps: [{ token: DOCUMENT }, { token: i1$1.Platform }], target: i0.ɵɵFactoryTarget.Injectable });\nFullscreenOverlayContainer.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FullscreenOverlayContainer, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FullscreenOverlayContainer, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: i1$1.Platform }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BlockScrollStrategy, CdkConnectedOverlay, CdkOverlayOrigin, CloseScrollStrategy, ConnectedOverlayPositionChange, ConnectionPositionPair, FlexibleConnectedPositionStrategy, FullscreenOverlayContainer, GlobalPositionStrategy, NoopScrollStrategy, Overlay, OverlayConfig, OverlayContainer, OverlayKeyboardDispatcher, OverlayModule, OverlayOutsideClickDispatcher, OverlayPositionBuilder, OverlayRef, RepositionScrollStrategy, ScrollStrategyOptions, ScrollingVisibility, validateHorizontalPosition, validateVerticalPosition };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/2af2a2feb8d48719324a884911c3b853.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/2af2a2feb8d48719324a884911c3b853.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/2af2a2feb8d48719324a884911c3b853.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, Input, Output, ViewChild, ContentChild, ContentChildren, NgModule } from '@angular/core';\nimport { Header, Footer, PrimeTemplate, SharedModule } from 'primeng/api';\nimport * as i2 from 'primeng/ripple';\nimport { RippleModule } from 'primeng/ripple';\nimport * as i1 from '@angular/common';\nimport { CommonModule } from '@angular/common';\nimport { UniqueComponentId } from 'primeng/utils';\nconst _c0 = [\"itemsContainer\"];\n\nfunction Carousel_div_1_ng_container_2_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nfunction Carousel_div_1_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 11);\n i0.ɵɵprojection(1);\n i0.ɵɵtemplate(2, Carousel_div_1_ng_container_2_Template, 1, 0, \"ng-container\", 12);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r0 = i0.ɵɵnextContext();\n i0.ɵɵadvance(2);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx_r0.headerTemplate);\n }\n}\n\nconst _c1 = function (a1) {\n return {\n \"p-carousel-prev p-link\": true,\n \"p-disabled\": a1\n };\n};\n\nconst _c2 = function (a1, a2) {\n return {\n \"p-carousel-prev-icon pi\": true,\n \"pi-chevron-left\": a1,\n \"pi-chevron-up\": a2\n };\n};\n\nfunction Carousel_button_4_Template(rf, ctx) {\n if (rf & 1) {\n const _r11 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"button\", 13);\n i0.ɵɵlistener(\"click\", function Carousel_button_4_Template_button_click_0_listener($event) {\n i0.ɵɵrestoreView(_r11);\n const ctx_r10 = i0.ɵɵnextContext();\n return ctx_r10.navBackward($event);\n });\n i0.ɵɵelement(1, \"span\", 2);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r1 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction1(3, _c1, ctx_r1.isBackwardNavDisabled()))(\"disabled\", ctx_r1.isBackwardNavDisabled());\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction2(5, _c2, !ctx_r1.isVertical(), ctx_r1.isVertical()));\n }\n}\n\nfunction Carousel_div_8_ng_container_1_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nconst _c3 = function (a1, a2, a3) {\n return {\n \"p-carousel-item p-carousel-item-cloned\": true,\n \"p-carousel-item-active\": a1,\n \"p-carousel-item-start\": a2,\n \"p-carousel-item-end\": a3\n };\n};\n\nconst _c4 = function (a0) {\n return {\n $implicit: a0\n };\n};\n\nfunction Carousel_div_8_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 2);\n i0.ɵɵtemplate(1, Carousel_div_8_ng_container_1_Template, 1, 0, \"ng-container\", 14);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const item_r12 = ctx.$implicit;\n const index_r13 = ctx.index;\n const ctx_r3 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction3(3, _c3, ctx_r3.totalShiftedItems * -1 === ctx_r3.value.length, 0 === index_r13, ctx_r3.clonedItemsForStarting.length - 1 === index_r13));\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx_r3.itemTemplate)(\"ngTemplateOutletContext\", i0.ɵɵpureFunction1(7, _c4, item_r12));\n }\n}\n\nfunction Carousel_div_9_ng_container_1_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nconst _c5 = function (a1, a2, a3) {\n return {\n \"p-carousel-item\": true,\n \"p-carousel-item-active\": a1,\n \"p-carousel-item-start\": a2,\n \"p-carousel-item-end\": a3\n };\n};\n\nfunction Carousel_div_9_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 2);\n i0.ɵɵtemplate(1, Carousel_div_9_ng_container_1_Template, 1, 0, \"ng-container\", 14);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const item_r15 = ctx.$implicit;\n const index_r16 = ctx.index;\n const ctx_r4 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction3(3, _c5, ctx_r4.firstIndex() <= index_r16 && ctx_r4.lastIndex() >= index_r16, ctx_r4.firstIndex() === index_r16, ctx_r4.lastIndex() === index_r16));\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx_r4.itemTemplate)(\"ngTemplateOutletContext\", i0.ɵɵpureFunction1(7, _c4, item_r15));\n }\n}\n\nfunction Carousel_div_10_ng_container_1_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nfunction Carousel_div_10_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 2);\n i0.ɵɵtemplate(1, Carousel_div_10_ng_container_1_Template, 1, 0, \"ng-container\", 14);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const item_r18 = ctx.$implicit;\n const index_r19 = ctx.index;\n const ctx_r5 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction3(3, _c3, ctx_r5.totalShiftedItems * -1 === ctx_r5.numVisible, 0 === index_r19, ctx_r5.clonedItemsForFinishing.length - 1 === index_r19));\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx_r5.itemTemplate)(\"ngTemplateOutletContext\", i0.ɵɵpureFunction1(7, _c4, item_r18));\n }\n}\n\nconst _c6 = function (a1) {\n return {\n \"p-carousel-next p-link\": true,\n \"p-disabled\": a1\n };\n};\n\nconst _c7 = function (a1, a2) {\n return {\n \"p-carousel-prev-icon pi\": true,\n \"pi-chevron-right\": a1,\n \"pi-chevron-down\": a2\n };\n};\n\nfunction Carousel_button_11_Template(rf, ctx) {\n if (rf & 1) {\n const _r22 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"button\", 13);\n i0.ɵɵlistener(\"click\", function Carousel_button_11_Template_button_click_0_listener($event) {\n i0.ɵɵrestoreView(_r22);\n const ctx_r21 = i0.ɵɵnextContext();\n return ctx_r21.navForward($event);\n });\n i0.ɵɵelement(1, \"span\", 2);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r6 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction1(3, _c6, ctx_r6.isForwardNavDisabled()))(\"disabled\", ctx_r6.isForwardNavDisabled());\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction2(5, _c7, !ctx_r6.isVertical(), ctx_r6.isVertical()));\n }\n}\n\nconst _c8 = function (a1) {\n return {\n \"p-carousel-indicator\": true,\n \"p-highlight\": a1\n };\n};\n\nfunction Carousel_ul_12_li_1_Template(rf, ctx) {\n if (rf & 1) {\n const _r27 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"li\", 2);\n i0.ɵɵelementStart(1, \"button\", 15);\n i0.ɵɵlistener(\"click\", function Carousel_ul_12_li_1_Template_button_click_1_listener($event) {\n const restoredCtx = i0.ɵɵrestoreView(_r27);\n const i_r25 = restoredCtx.index;\n const ctx_r26 = i0.ɵɵnextContext(2);\n return ctx_r26.onDotClick($event, i_r25);\n });\n i0.ɵɵelementEnd();\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const i_r25 = ctx.index;\n const ctx_r23 = i0.ɵɵnextContext(2);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction1(5, _c8, ctx_r23._page === i_r25));\n i0.ɵɵadvance(1);\n i0.ɵɵclassMap(ctx_r23.indicatorStyleClass);\n i0.ɵɵproperty(\"ngClass\", \"p-link\")(\"ngStyle\", ctx_r23.indicatorStyle);\n }\n}\n\nfunction Carousel_ul_12_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"ul\", 0);\n i0.ɵɵtemplate(1, Carousel_ul_12_li_1_Template, 2, 7, \"li\", 8);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r7 = i0.ɵɵnextContext();\n i0.ɵɵclassMap(ctx_r7.indicatorsContentClass);\n i0.ɵɵproperty(\"ngClass\", \"p-carousel-indicators p-reset\")(\"ngStyle\", ctx_r7.indicatorsContentStyle);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngForOf\", ctx_r7.totalDotsArray());\n }\n}\n\nfunction Carousel_div_13_ng_container_2_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nfunction Carousel_div_13_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 16);\n i0.ɵɵprojection(1, 1);\n i0.ɵɵtemplate(2, Carousel_div_13_ng_container_2_Template, 1, 0, \"ng-container\", 12);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r8 = i0.ɵɵnextContext();\n i0.ɵɵadvance(2);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx_r8.footerTemplate);\n }\n}\n\nconst _c9 = [[[\"p-header\"]], [[\"p-footer\"]]];\n\nconst _c10 = function (a1, a2) {\n return {\n \"p-carousel p-component\": true,\n \"p-carousel-vertical\": a1,\n \"p-carousel-horizontal\": a2\n };\n};\n\nconst _c11 = function (a0) {\n return {\n \"height\": a0\n };\n};\n\nconst _c12 = [\"p-header\", \"p-footer\"];\n\nclass Carousel {\n constructor(el, zone, cd) {\n this.el = el;\n this.zone = zone;\n this.cd = cd;\n this.orientation = \"horizontal\";\n this.verticalViewPortHeight = \"300px\";\n this.contentClass = \"\";\n this.indicatorsContentClass = \"\";\n this.indicatorStyleClass = \"\";\n this.circular = false;\n this.showIndicators = true;\n this.showNavigators = true;\n this.autoplayInterval = 0;\n this.onPage = new EventEmitter();\n this._numVisible = 1;\n this._numScroll = 1;\n this._oldNumScroll = 0;\n this.prevState = {\n numScroll: 0,\n numVisible: 0,\n value: []\n };\n this.defaultNumScroll = 1;\n this.defaultNumVisible = 1;\n this._page = 0;\n this.isRemainingItemsAdded = false;\n this.remainingItems = 0;\n this.swipeThreshold = 20;\n this.totalShiftedItems = this.page * this.numScroll * -1;\n }\n\n get page() {\n return this._page;\n }\n\n set page(val) {\n if (this.isCreated && val !== this._page) {\n if (this.autoplayInterval) {\n this.stopAutoplay();\n this.allowAutoplay = false;\n }\n\n if (val > this._page && val <= this.totalDots() - 1) {\n this.step(-1, val);\n } else if (val < this._page) {\n this.step(1, val);\n }\n }\n\n this._page = val;\n }\n\n get numVisible() {\n return this._numVisible;\n }\n\n set numVisible(val) {\n this._numVisible = val;\n }\n\n get numScroll() {\n return this._numVisible;\n }\n\n set numScroll(val) {\n this._numScroll = val;\n }\n\n get value() {\n return this._value;\n }\n\n set value(val) {\n this._value = val;\n }\n\n ngOnChanges(simpleChange) {\n if (simpleChange.value) {\n if (this.circular && this._value) {\n this.setCloneItems();\n }\n }\n\n if (this.isCreated) {\n if (simpleChange.numVisible) {\n if (this.responsiveOptions) {\n this.defaultNumVisible = this.numVisible;\n }\n\n if (this.isCircular()) {\n this.setCloneItems();\n }\n\n this.createStyle();\n this.calculatePosition();\n }\n\n if (simpleChange.numScroll) {\n if (this.responsiveOptions) {\n this.defaultNumScroll = this.numScroll;\n }\n }\n }\n }\n\n ngAfterContentInit() {\n this.id = UniqueComponentId();\n this.allowAutoplay = !!this.autoplayInterval;\n\n if (this.circular) {\n this.setCloneItems();\n }\n\n if (this.responsiveOptions) {\n this.defaultNumScroll = this._numScroll;\n this.defaultNumVisible = this._numVisible;\n }\n\n this.createStyle();\n this.calculatePosition();\n\n if (this.responsiveOptions) {\n this.bindDocumentListeners();\n }\n\n this.templates.forEach(item => {\n switch (item.getType()) {\n case 'item':\n this.itemTemplate = item.template;\n break;\n\n case 'header':\n this.headerTemplate = item.template;\n break;\n\n case 'footer':\n this.footerTemplate = item.template;\n break;\n\n default:\n this.itemTemplate = item.template;\n break;\n }\n });\n }\n\n ngAfterContentChecked() {\n const isCircular = this.isCircular();\n let totalShiftedItems = this.totalShiftedItems;\n\n if (this.value && this.itemsContainer && (this.prevState.numScroll !== this._numScroll || this.prevState.numVisible !== this._numVisible || this.prevState.value.length !== this.value.length)) {\n if (this.autoplayInterval) {\n this.stopAutoplay();\n }\n\n this.remainingItems = (this.value.length - this._numVisible) % this._numScroll;\n let page = this._page;\n\n if (this.totalDots() !== 0 && page >= this.totalDots()) {\n page = this.totalDots() - 1;\n this._page = page;\n this.onPage.emit({\n page: this.page\n });\n }\n\n totalShiftedItems = page * this._numScroll * -1;\n\n if (isCircular) {\n totalShiftedItems -= this._numVisible;\n }\n\n if (page === this.totalDots() - 1 && this.remainingItems > 0) {\n totalShiftedItems += -1 * this.remainingItems + this._numScroll;\n this.isRemainingItemsAdded = true;\n } else {\n this.isRemainingItemsAdded = false;\n }\n\n if (totalShiftedItems !== this.totalShiftedItems) {\n this.totalShiftedItems = totalShiftedItems;\n }\n\n this._oldNumScroll = this._numScroll;\n this.prevState.numScroll = this._numScroll;\n this.prevState.numVisible = this._numVisible;\n this.prevState.value = [...this._value];\n\n if (this.totalDots() > 0 && this.itemsContainer.nativeElement) {\n this.itemsContainer.nativeElement.style.transform = this.isVertical() ? `translate3d(0, ${totalShiftedItems * (100 / this._numVisible)}%, 0)` : `translate3d(${totalShiftedItems * (100 / this._numVisible)}%, 0, 0)`;\n }\n\n this.isCreated = true;\n\n if (this.autoplayInterval && this.isAutoplay()) {\n this.startAutoplay();\n }\n }\n\n if (isCircular) {\n if (this.page === 0) {\n totalShiftedItems = -1 * this._numVisible;\n } else if (totalShiftedItems === 0) {\n totalShiftedItems = -1 * this.value.length;\n\n if (this.remainingItems > 0) {\n this.isRemainingItemsAdded = true;\n }\n }\n\n if (totalShiftedItems !== this.totalShiftedItems) {\n this.totalShiftedItems = totalShiftedItems;\n }\n }\n }\n\n createStyle() {\n if (!this.carouselStyle) {\n this.carouselStyle = document.createElement('style');\n this.carouselStyle.type = 'text/css';\n document.body.appendChild(this.carouselStyle);\n }\n\n let innerHTML = `\n #${this.id} .p-carousel-item {\n\t\t\t\tflex: 1 0 ${100 / this.numVisible}%\n\t\t\t}\n `;\n\n if (this.responsiveOptions) {\n this.responsiveOptions.sort((data1, data2) => {\n const value1 = data1.breakpoint;\n const value2 = data2.breakpoint;\n let result = null;\n if (value1 == null && value2 != null) result = -1;else if (value1 != null && value2 == null) result = 1;else if (value1 == null && value2 == null) result = 0;else if (typeof value1 === 'string' && typeof value2 === 'string') result = value1.localeCompare(value2, undefined, {\n numeric: true\n });else result = value1 < value2 ? -1 : value1 > value2 ? 1 : 0;\n return -1 * result;\n });\n\n for (let i = 0; i < this.responsiveOptions.length; i++) {\n let res = this.responsiveOptions[i];\n innerHTML += `\n @media screen and (max-width: ${res.breakpoint}) {\n #${this.id} .p-carousel-item {\n flex: 1 0 ${100 / res.numVisible}%\n }\n }\n `;\n }\n }\n\n this.carouselStyle.innerHTML = innerHTML;\n }\n\n calculatePosition() {\n if (this.responsiveOptions) {\n let windowWidth = window.innerWidth;\n let matchedResponsiveData = {\n numVisible: this.defaultNumVisible,\n numScroll: this.defaultNumScroll\n };\n\n for (let i = 0; i < this.responsiveOptions.length; i++) {\n let res = this.responsiveOptions[i];\n\n if (parseInt(res.breakpoint, 10) >= windowWidth) {\n matchedResponsiveData = res;\n }\n }\n\n if (this._numScroll !== matchedResponsiveData.numScroll) {\n let page = this._page;\n page = Math.floor(page * this._numScroll / matchedResponsiveData.numScroll);\n let totalShiftedItems = matchedResponsiveData.numScroll * this.page * -1;\n\n if (this.isCircular()) {\n totalShiftedItems -= matchedResponsiveData.numVisible;\n }\n\n this.totalShiftedItems = totalShiftedItems;\n this._numScroll = matchedResponsiveData.numScroll;\n this._page = page;\n this.onPage.emit({\n page: this.page\n });\n }\n\n if (this._numVisible !== matchedResponsiveData.numVisible) {\n this._numVisible = matchedResponsiveData.numVisible;\n this.setCloneItems();\n }\n\n this.cd.markForCheck();\n }\n }\n\n setCloneItems() {\n this.clonedItemsForStarting = [];\n this.clonedItemsForFinishing = [];\n\n if (this.isCircular()) {\n this.clonedItemsForStarting.push(...this.value.slice(-1 * this._numVisible));\n this.clonedItemsForFinishing.push(...this.value.slice(0, this._numVisible));\n }\n }\n\n firstIndex() {\n return this.isCircular() ? -1 * (this.totalShiftedItems + this.numVisible) : this.totalShiftedItems * -1;\n }\n\n lastIndex() {\n return this.firstIndex() + this.numVisible - 1;\n }\n\n totalDots() {\n return this.value ? Math.ceil((this.value.length - this._numVisible) / this._numScroll) + 1 : 0;\n }\n\n totalDotsArray() {\n const totalDots = this.totalDots();\n return totalDots <= 0 ? [] : Array(totalDots).fill(0);\n }\n\n isVertical() {\n return this.orientation === 'vertical';\n }\n\n isCircular() {\n return this.circular && this.value && this.value.length >= this.numVisible;\n }\n\n isAutoplay() {\n return this.autoplayInterval && this.allowAutoplay;\n }\n\n isForwardNavDisabled() {\n return this.isEmpty() || this._page >= this.totalDots() - 1 && !this.isCircular();\n }\n\n isBackwardNavDisabled() {\n return this.isEmpty() || this._page <= 0 && !this.isCircular();\n }\n\n isEmpty() {\n return !this.value || this.value.length === 0;\n }\n\n navForward(e, index) {\n if (this.isCircular() || this._page < this.totalDots() - 1) {\n this.step(-1, index);\n }\n\n if (this.autoplayInterval) {\n this.stopAutoplay();\n this.allowAutoplay = false;\n }\n\n if (e && e.cancelable) {\n e.preventDefault();\n }\n }\n\n navBackward(e, index) {\n if (this.isCircular() || this._page !== 0) {\n this.step(1, index);\n }\n\n if (this.autoplayInterval) {\n this.stopAutoplay();\n this.allowAutoplay = false;\n }\n\n if (e && e.cancelable) {\n e.preventDefault();\n }\n }\n\n onDotClick(e, index) {\n let page = this._page;\n\n if (this.autoplayInterval) {\n this.stopAutoplay();\n this.allowAutoplay = false;\n }\n\n if (index > page) {\n this.navForward(e, index);\n } else if (index < page) {\n this.navBackward(e, index);\n }\n }\n\n step(dir, page) {\n let totalShiftedItems = this.totalShiftedItems;\n const isCircular = this.isCircular();\n\n if (page != null) {\n totalShiftedItems = this._numScroll * page * -1;\n\n if (isCircular) {\n totalShiftedItems -= this._numVisible;\n }\n\n this.isRemainingItemsAdded = false;\n } else {\n totalShiftedItems += this._numScroll * dir;\n\n if (this.isRemainingItemsAdded) {\n totalShiftedItems += this.remainingItems - this._numScroll * dir;\n this.isRemainingItemsAdded = false;\n }\n\n let originalShiftedItems = isCircular ? totalShiftedItems + this._numVisible : totalShiftedItems;\n page = Math.abs(Math.floor(originalShiftedItems / this._numScroll));\n }\n\n if (isCircular && this.page === this.totalDots() - 1 && dir === -1) {\n totalShiftedItems = -1 * (this.value.length + this._numVisible);\n page = 0;\n } else if (isCircular && this.page === 0 && dir === 1) {\n totalShiftedItems = 0;\n page = this.totalDots() - 1;\n } else if (page === this.totalDots() - 1 && this.remainingItems > 0) {\n totalShiftedItems += this.remainingItems * -1 - this._numScroll * dir;\n this.isRemainingItemsAdded = true;\n }\n\n if (this.itemsContainer) {\n this.itemsContainer.nativeElement.style.transform = this.isVertical() ? `translate3d(0, ${totalShiftedItems * (100 / this._numVisible)}%, 0)` : `translate3d(${totalShiftedItems * (100 / this._numVisible)}%, 0, 0)`;\n this.itemsContainer.nativeElement.style.transition = 'transform 500ms ease 0s';\n }\n\n this.totalShiftedItems = totalShiftedItems;\n this._page = page;\n this.onPage.emit({\n page: this.page\n });\n }\n\n startAutoplay() {\n this.interval = setInterval(() => {\n if (this.totalDots() > 0) {\n if (this.page === this.totalDots() - 1) {\n this.step(-1, 0);\n } else {\n this.step(-1, this.page + 1);\n }\n }\n }, this.autoplayInterval);\n }\n\n stopAutoplay() {\n if (this.interval) {\n clearInterval(this.interval);\n }\n }\n\n onTransitionEnd() {\n if (this.itemsContainer) {\n this.itemsContainer.nativeElement.style.transition = '';\n\n if ((this.page === 0 || this.page === this.totalDots() - 1) && this.isCircular()) {\n this.itemsContainer.nativeElement.style.transform = this.isVertical() ? `translate3d(0, ${this.totalShiftedItems * (100 / this._numVisible)}%, 0)` : `translate3d(${this.totalShiftedItems * (100 / this._numVisible)}%, 0, 0)`;\n }\n }\n }\n\n onTouchStart(e) {\n let touchobj = e.changedTouches[0];\n this.startPos = {\n x: touchobj.pageX,\n y: touchobj.pageY\n };\n }\n\n onTouchMove(e) {\n if (e.cancelable) {\n e.preventDefault();\n }\n }\n\n onTouchEnd(e) {\n let touchobj = e.changedTouches[0];\n\n if (this.isVertical()) {\n this.changePageOnTouch(e, touchobj.pageY - this.startPos.y);\n } else {\n this.changePageOnTouch(e, touchobj.pageX - this.startPos.x);\n }\n }\n\n changePageOnTouch(e, diff) {\n if (Math.abs(diff) > this.swipeThreshold) {\n if (diff < 0) {\n this.navForward(e);\n } else {\n this.navBackward(e);\n }\n }\n }\n\n bindDocumentListeners() {\n if (!this.documentResizeListener) {\n this.documentResizeListener = e => {\n this.calculatePosition();\n };\n\n window.addEventListener('resize', this.documentResizeListener);\n }\n }\n\n unbindDocumentListeners() {\n if (this.documentResizeListener) {\n window.removeEventListener('resize', this.documentResizeListener);\n this.documentResizeListener = null;\n }\n }\n\n ngOnDestroy() {\n if (this.responsiveOptions) {\n this.unbindDocumentListeners();\n }\n\n if (this.autoplayInterval) {\n this.stopAutoplay();\n }\n }\n\n}\n\nCarousel.ɵfac = function Carousel_Factory(t) {\n return new (t || Carousel)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i0.NgZone), i0.ɵɵdirectiveInject(i0.ChangeDetectorRef));\n};\n\nCarousel.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: Carousel,\n selectors: [[\"p-carousel\"]],\n contentQueries: function Carousel_ContentQueries(rf, ctx, dirIndex) {\n if (rf & 1) {\n i0.ɵɵcontentQuery(dirIndex, Header, 5);\n i0.ɵɵcontentQuery(dirIndex, Footer, 5);\n i0.ɵɵcontentQuery(dirIndex, PrimeTemplate, 4);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.headerFacet = _t.first);\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.footerFacet = _t.first);\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.templates = _t);\n }\n },\n viewQuery: function Carousel_Query(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵviewQuery(_c0, 5);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.itemsContainer = _t.first);\n }\n },\n hostAttrs: [1, \"p-element\"],\n inputs: {\n page: \"page\",\n numVisible: \"numVisible\",\n numScroll: \"numScroll\",\n responsiveOptions: \"responsiveOptions\",\n orientation: \"orientation\",\n verticalViewPortHeight: \"verticalViewPortHeight\",\n contentClass: \"contentClass\",\n indicatorsContentClass: \"indicatorsContentClass\",\n indicatorsContentStyle: \"indicatorsContentStyle\",\n indicatorStyleClass: \"indicatorStyleClass\",\n indicatorStyle: \"indicatorStyle\",\n value: \"value\",\n circular: \"circular\",\n showIndicators: \"showIndicators\",\n showNavigators: \"showNavigators\",\n autoplayInterval: \"autoplayInterval\",\n style: \"style\",\n styleClass: \"styleClass\"\n },\n outputs: {\n onPage: \"onPage\"\n },\n features: [i0.ɵɵNgOnChangesFeature],\n ngContentSelectors: _c12,\n decls: 14,\n vars: 22,\n consts: [[3, \"ngClass\", \"ngStyle\"], [\"class\", \"p-carousel-header\", 4, \"ngIf\"], [3, \"ngClass\"], [1, \"p-carousel-container\"], [\"type\", \"button\", \"pRipple\", \"\", 3, \"ngClass\", \"disabled\", \"click\", 4, \"ngIf\"], [1, \"p-carousel-items-content\", 3, \"ngStyle\"], [1, \"p-carousel-items-container\", 3, \"transitionend\", \"touchend\", \"touchstart\", \"touchmove\"], [\"itemsContainer\", \"\"], [3, \"ngClass\", 4, \"ngFor\", \"ngForOf\"], [3, \"ngClass\", \"class\", \"ngStyle\", 4, \"ngIf\"], [\"class\", \"p-carousel-footer\", 4, \"ngIf\"], [1, \"p-carousel-header\"], [4, \"ngTemplateOutlet\"], [\"type\", \"button\", \"pRipple\", \"\", 3, \"ngClass\", \"disabled\", \"click\"], [4, \"ngTemplateOutlet\", \"ngTemplateOutletContext\"], [\"type\", \"button\", 3, \"ngClass\", \"ngStyle\", \"click\"], [1, \"p-carousel-footer\"]],\n template: function Carousel_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef(_c9);\n i0.ɵɵelementStart(0, \"div\", 0);\n i0.ɵɵtemplate(1, Carousel_div_1_Template, 3, 1, \"div\", 1);\n i0.ɵɵelementStart(2, \"div\", 2);\n i0.ɵɵelementStart(3, \"div\", 3);\n i0.ɵɵtemplate(4, Carousel_button_4_Template, 2, 8, \"button\", 4);\n i0.ɵɵelementStart(5, \"div\", 5);\n i0.ɵɵelementStart(6, \"div\", 6, 7);\n i0.ɵɵlistener(\"transitionend\", function Carousel_Template_div_transitionend_6_listener() {\n return ctx.onTransitionEnd();\n })(\"touchend\", function Carousel_Template_div_touchend_6_listener($event) {\n return ctx.onTouchEnd($event);\n })(\"touchstart\", function Carousel_Template_div_touchstart_6_listener($event) {\n return ctx.onTouchStart($event);\n })(\"touchmove\", function Carousel_Template_div_touchmove_6_listener($event) {\n return ctx.onTouchMove($event);\n });\n i0.ɵɵtemplate(8, Carousel_div_8_Template, 2, 9, \"div\", 8);\n i0.ɵɵtemplate(9, Carousel_div_9_Template, 2, 9, \"div\", 8);\n i0.ɵɵtemplate(10, Carousel_div_10_Template, 2, 9, \"div\", 8);\n i0.ɵɵelementEnd();\n i0.ɵɵelementEnd();\n i0.ɵɵtemplate(11, Carousel_button_11_Template, 2, 8, \"button\", 4);\n i0.ɵɵelementEnd();\n i0.ɵɵtemplate(12, Carousel_ul_12_Template, 2, 5, \"ul\", 9);\n i0.ɵɵelementEnd();\n i0.ɵɵtemplate(13, Carousel_div_13_Template, 3, 1, \"div\", 10);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n i0.ɵɵclassMap(ctx.styleClass);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction2(17, _c10, ctx.isVertical(), !ctx.isVertical()))(\"ngStyle\", ctx.style);\n i0.ɵɵattribute(\"id\", ctx.id);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", ctx.headerFacet || ctx.headerTemplate);\n i0.ɵɵadvance(1);\n i0.ɵɵclassMap(ctx.contentClass);\n i0.ɵɵproperty(\"ngClass\", \"p-carousel-content\");\n i0.ɵɵadvance(2);\n i0.ɵɵproperty(\"ngIf\", ctx.showNavigators);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngStyle\", i0.ɵɵpureFunction1(20, _c11, ctx.isVertical() ? ctx.verticalViewPortHeight : \"auto\"));\n i0.ɵɵadvance(3);\n i0.ɵɵproperty(\"ngForOf\", ctx.clonedItemsForStarting);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngForOf\", ctx.value);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngForOf\", ctx.clonedItemsForFinishing);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", ctx.showNavigators);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", ctx.showIndicators);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", ctx.footerFacet || ctx.footerTemplate);\n }\n },\n directives: [i1.NgClass, i1.NgStyle, i1.NgIf, i1.NgForOf, i1.NgTemplateOutlet, i2.Ripple],\n styles: [\".p-carousel{display:flex;flex-direction:column}.p-carousel-content{display:flex;flex-direction:column;overflow:auto}.p-carousel-prev,.p-carousel-next{align-self:center;flex-grow:0;flex-shrink:0;display:flex;justify-content:center;align-items:center;overflow:hidden;position:relative}.p-carousel-container{display:flex;flex-direction:row}.p-carousel-items-content{overflow:hidden;width:100%}.p-carousel-items-container{display:flex;flex-direction:row}.p-carousel-indicators{display:flex;flex-direction:row;justify-content:center;flex-wrap:wrap}.p-carousel-indicator>button{display:flex;align-items:center;justify-content:center}.p-carousel-vertical .p-carousel-container{flex-direction:column}.p-carousel-vertical .p-carousel-items-container{flex-direction:column;height:100%}.p-items-hidden .p-carousel-item{visibility:hidden}.p-items-hidden .p-carousel-item.p-carousel-item-active{visibility:visible}\\n\"],\n encapsulation: 2,\n changeDetection: 0\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Carousel, [{\n type: Component,\n args: [{\n selector: 'p-carousel',\n template: `\n\t\t
\n `,\n changeDetection: ChangeDetectionStrategy.OnPush,\n host: {\n 'class': 'p-element'\n }\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.ChangeDetectorRef }]; }, propDecorators: { multiple: [{\n type: Input\n }], onClose: [{\n type: Output\n }], onOpen: [{\n type: Output\n }], style: [{\n type: Input\n }], styleClass: [{\n type: Input\n }], expandIcon: [{\n type: Input\n }], collapseIcon: [{\n type: Input\n }], activeIndexChange: [{\n type: Output\n }], tabList: [{\n type: ContentChildren,\n args: [AccordionTab]\n }], activeIndex: [{\n type: Input\n }] } });\nclass AccordionModule {\n}\nAccordionModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: AccordionModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nAccordionModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: AccordionModule, declarations: [Accordion, AccordionTab], imports: [CommonModule], exports: [Accordion, AccordionTab, SharedModule] });\nAccordionModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: AccordionModule, imports: [[CommonModule], SharedModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: AccordionModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule],\n exports: [Accordion, AccordionTab, SharedModule],\n declarations: [Accordion, AccordionTab]\n }]\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Accordion, AccordionModule, AccordionTab };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/4eade5afb8240d90689cd0aacafe2106.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/4eade5afb8240d90689cd0aacafe2106.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/4eade5afb8240d90689cd0aacafe2106.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { Directive, Input, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ContentChildren, Output, NgModule } from '@angular/core';\nimport { DomHandler } from 'primeng/dom';\nimport * as i2 from '@angular/common';\nimport { CommonModule } from '@angular/common';\nimport * as i1 from 'primeng/ripple';\nimport { RippleModule } from 'primeng/ripple';\nimport { PrimeTemplate } from 'primeng/api';\n\nfunction Button_ng_container_2_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nconst _c0 = function (a1, a2, a3, a4) {\n return {\n \"p-button-icon\": true,\n \"p-button-icon-left\": a1,\n \"p-button-icon-right\": a2,\n \"p-button-icon-top\": a3,\n \"p-button-icon-bottom\": a4\n };\n};\n\nfunction Button_span_3_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelement(0, \"span\", 4);\n }\n\n if (rf & 2) {\n const ctx_r1 = i0.ɵɵnextContext();\n i0.ɵɵclassMap(ctx_r1.loading ? \"p-button-loading-icon \" + ctx_r1.loadingIcon : ctx_r1.icon);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction4(4, _c0, ctx_r1.iconPos === \"left\" && ctx_r1.label, ctx_r1.iconPos === \"right\" && ctx_r1.label, ctx_r1.iconPos === \"top\" && ctx_r1.label, ctx_r1.iconPos === \"bottom\" && ctx_r1.label));\n i0.ɵɵattribute(\"aria-hidden\", true);\n }\n}\n\nfunction Button_span_4_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"span\", 5);\n i0.ɵɵtext(1);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r2 = i0.ɵɵnextContext();\n i0.ɵɵattribute(\"aria-hidden\", ctx_r2.icon && !ctx_r2.label);\n i0.ɵɵadvance(1);\n i0.ɵɵtextInterpolate(ctx_r2.label || \"\\xA0\");\n }\n}\n\nfunction Button_span_5_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"span\", 4);\n i0.ɵɵtext(1);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r3 = i0.ɵɵnextContext();\n i0.ɵɵclassMap(ctx_r3.badgeClass);\n i0.ɵɵproperty(\"ngClass\", ctx_r3.badgeStyleClass());\n i0.ɵɵadvance(1);\n i0.ɵɵtextInterpolate(ctx_r3.badge);\n }\n}\n\nconst _c1 = function (a1, a2, a3, a4, a5) {\n return {\n \"p-button p-component\": true,\n \"p-button-icon-only\": a1,\n \"p-button-vertical\": a2,\n \"p-disabled\": a3,\n \"p-button-loading\": a4,\n \"p-button-loading-label-only\": a5\n };\n};\n\nconst _c2 = [\"*\"];\n\nclass ButtonDirective {\n constructor(el) {\n this.el = el;\n this.iconPos = 'left';\n this.loadingIcon = \"pi pi-spinner pi-spin\";\n this._loading = false;\n }\n\n ngAfterViewInit() {\n this._initialStyleClass = this.el.nativeElement.className;\n DomHandler.addMultipleClasses(this.el.nativeElement, this.getStyleClass());\n\n if (this.icon || this.loading) {\n this.createIconEl();\n }\n\n let labelElement = document.createElement(\"span\");\n\n if (this.icon && !this.label) {\n labelElement.setAttribute('aria-hidden', 'true');\n }\n\n labelElement.className = 'p-button-label';\n if (this.label) labelElement.appendChild(document.createTextNode(this.label));else labelElement.innerHTML = ' ';\n this.el.nativeElement.appendChild(labelElement);\n this.initialized = true;\n }\n\n getStyleClass() {\n let styleClass = 'p-button p-component';\n\n if (this.icon && !this.label) {\n styleClass = styleClass + ' p-button-icon-only';\n }\n\n if (this.loading) {\n styleClass = styleClass + ' p-disabled p-button-loading';\n if (!this.icon && this.label) styleClass = styleClass + ' p-button-loading-label-only';\n }\n\n return styleClass;\n }\n\n setStyleClass() {\n let styleClass = this.getStyleClass();\n this.el.nativeElement.className = styleClass + ' ' + this._initialStyleClass;\n }\n\n createIconEl() {\n let iconElement = document.createElement(\"span\");\n iconElement.className = 'p-button-icon';\n iconElement.setAttribute(\"aria-hidden\", \"true\");\n let iconPosClass = this.label ? 'p-button-icon-' + this.iconPos : null;\n\n if (iconPosClass) {\n DomHandler.addClass(iconElement, iconPosClass);\n }\n\n let iconClass = this.getIconClass();\n\n if (iconClass) {\n DomHandler.addMultipleClasses(iconElement, iconClass);\n }\n\n let labelEl = DomHandler.findSingle(this.el.nativeElement, '.p-button-label');\n if (labelEl) this.el.nativeElement.insertBefore(iconElement, labelEl);else this.el.nativeElement.appendChild(iconElement);\n }\n\n getIconClass() {\n return this.loading ? 'p-button-loading-icon ' + this.loadingIcon : this._icon;\n }\n\n setIconClass() {\n let iconElement = DomHandler.findSingle(this.el.nativeElement, '.p-button-icon');\n\n if (iconElement) {\n if (this.iconPos) iconElement.className = 'p-button-icon p-button-icon-' + this.iconPos + ' ' + this.getIconClass();else iconElement.className = 'p-button-icon ' + this.getIconClass();\n } else {\n this.createIconEl();\n }\n }\n\n removeIconElement() {\n let iconElement = DomHandler.findSingle(this.el.nativeElement, '.p-button-icon');\n this.el.nativeElement.removeChild(iconElement);\n }\n\n get label() {\n return this._label;\n }\n\n set label(val) {\n this._label = val;\n\n if (this.initialized) {\n DomHandler.findSingle(this.el.nativeElement, '.p-button-label').textContent = this._label || ' ';\n\n if (this.loading || this.icon) {\n this.setIconClass();\n }\n\n this.setStyleClass();\n }\n }\n\n get icon() {\n return this._icon;\n }\n\n set icon(val) {\n this._icon = val;\n\n if (this.initialized) {\n this.setIconClass();\n this.setStyleClass();\n }\n }\n\n get loading() {\n return this._loading;\n }\n\n set loading(val) {\n this._loading = val;\n\n if (this.initialized) {\n if (this.loading || this.icon) this.setIconClass();else this.removeIconElement();\n this.setStyleClass();\n }\n }\n\n ngOnDestroy() {\n this.initialized = false;\n }\n\n}\n\nButtonDirective.ɵfac = function ButtonDirective_Factory(t) {\n return new (t || ButtonDirective)(i0.ɵɵdirectiveInject(i0.ElementRef));\n};\n\nButtonDirective.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: ButtonDirective,\n selectors: [[\"\", \"pButton\", \"\"]],\n hostAttrs: [1, \"p-element\"],\n inputs: {\n iconPos: \"iconPos\",\n loadingIcon: \"loadingIcon\",\n label: \"label\",\n icon: \"icon\",\n loading: \"loading\"\n }\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ButtonDirective, [{\n type: Directive,\n args: [{\n selector: '[pButton]',\n host: {\n 'class': 'p-element'\n }\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }];\n }, {\n iconPos: [{\n type: Input\n }],\n loadingIcon: [{\n type: Input\n }],\n label: [{\n type: Input\n }],\n icon: [{\n type: Input\n }],\n loading: [{\n type: Input\n }]\n });\n})();\n\nclass Button {\n constructor() {\n this.type = \"button\";\n this.iconPos = 'left';\n this.loading = false;\n this.loadingIcon = \"pi pi-spinner pi-spin\";\n this.onClick = new EventEmitter();\n this.onFocus = new EventEmitter();\n this.onBlur = new EventEmitter();\n }\n\n ngAfterContentInit() {\n this.templates.forEach(item => {\n switch (item.getType()) {\n case 'content':\n this.contentTemplate = item.template;\n break;\n\n default:\n this.contentTemplate = item.template;\n break;\n }\n });\n }\n\n badgeStyleClass() {\n return {\n 'p-badge p-component': true,\n 'p-badge-no-gutter': this.badge && String(this.badge).length === 1\n };\n }\n\n}\n\nButton.ɵfac = function Button_Factory(t) {\n return new (t || Button)();\n};\n\nButton.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: Button,\n selectors: [[\"p-button\"]],\n contentQueries: function Button_ContentQueries(rf, ctx, dirIndex) {\n if (rf & 1) {\n i0.ɵɵcontentQuery(dirIndex, PrimeTemplate, 4);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.templates = _t);\n }\n },\n hostAttrs: [1, \"p-element\"],\n inputs: {\n type: \"type\",\n iconPos: \"iconPos\",\n icon: \"icon\",\n badge: \"badge\",\n label: \"label\",\n disabled: \"disabled\",\n loading: \"loading\",\n loadingIcon: \"loadingIcon\",\n style: \"style\",\n styleClass: \"styleClass\",\n badgeClass: \"badgeClass\"\n },\n outputs: {\n onClick: \"onClick\",\n onFocus: \"onFocus\",\n onBlur: \"onBlur\"\n },\n ngContentSelectors: _c2,\n decls: 6,\n vars: 16,\n consts: [[\"pRipple\", \"\", 3, \"ngStyle\", \"disabled\", \"ngClass\", \"click\", \"focus\", \"blur\"], [4, \"ngTemplateOutlet\"], [3, \"ngClass\", \"class\", 4, \"ngIf\"], [\"class\", \"p-button-label\", 4, \"ngIf\"], [3, \"ngClass\"], [1, \"p-button-label\"]],\n template: function Button_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef();\n i0.ɵɵelementStart(0, \"button\", 0);\n i0.ɵɵlistener(\"click\", function Button_Template_button_click_0_listener($event) {\n return ctx.onClick.emit($event);\n })(\"focus\", function Button_Template_button_focus_0_listener($event) {\n return ctx.onFocus.emit($event);\n })(\"blur\", function Button_Template_button_blur_0_listener($event) {\n return ctx.onBlur.emit($event);\n });\n i0.ɵɵprojection(1);\n i0.ɵɵtemplate(2, Button_ng_container_2_Template, 1, 0, \"ng-container\", 1);\n i0.ɵɵtemplate(3, Button_span_3_Template, 1, 9, \"span\", 2);\n i0.ɵɵtemplate(4, Button_span_4_Template, 2, 2, \"span\", 3);\n i0.ɵɵtemplate(5, Button_span_5_Template, 2, 4, \"span\", 2);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n i0.ɵɵclassMap(ctx.styleClass);\n i0.ɵɵproperty(\"ngStyle\", ctx.style)(\"disabled\", ctx.disabled || ctx.loading)(\"ngClass\", i0.ɵɵpureFunction5(10, _c1, ctx.icon && !ctx.label, (ctx.iconPos === \"top\" || ctx.iconPos === \"bottom\") && ctx.label, ctx.disabled || ctx.loading, ctx.loading, ctx.loading && !ctx.icon && ctx.label));\n i0.ɵɵattribute(\"type\", ctx.type);\n i0.ɵɵadvance(2);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx.contentTemplate);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", !ctx.contentTemplate && (ctx.icon || ctx.loading));\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", !ctx.contentTemplate);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", !ctx.contentTemplate && ctx.badge);\n }\n },\n directives: [i1.Ripple, i2.NgStyle, i2.NgClass, i2.NgTemplateOutlet, i2.NgIf],\n encapsulation: 2,\n changeDetection: 0\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Button, [{\n type: Component,\n args: [{\n selector: 'p-button',\n template: `\n \n `,\n changeDetection: ChangeDetectionStrategy.OnPush,\n encapsulation: 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* as i0 from '@angular/core';\nimport { Directive, Input, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ContentChildren, Output, NgModule } from '@angular/core';\nimport { DomHandler } from 'primeng/dom';\nimport * as i2 from '@angular/common';\nimport { CommonModule } from '@angular/common';\nimport * as i1 from 'primeng/ripple';\nimport { RippleModule } from 'primeng/ripple';\nimport { PrimeTemplate } from 'primeng/api';\n\nclass ButtonDirective {\n constructor(el) {\n this.el = el;\n this.iconPos = 'left';\n this.loadingIcon = \"pi pi-spinner pi-spin\";\n this._loading = false;\n }\n ngAfterViewInit() {\n this._initialStyleClass = this.el.nativeElement.className;\n DomHandler.addMultipleClasses(this.el.nativeElement, this.getStyleClass());\n if (this.icon || this.loading) {\n this.createIconEl();\n }\n let labelElement = document.createElement(\"span\");\n if (this.icon && !this.label) {\n labelElement.setAttribute('aria-hidden', 'true');\n }\n labelElement.className = 'p-button-label';\n if (this.label)\n labelElement.appendChild(document.createTextNode(this.label));\n else\n labelElement.innerHTML = ' ';\n this.el.nativeElement.appendChild(labelElement);\n this.initialized = true;\n }\n getStyleClass() {\n let styleClass = 'p-button p-component';\n if (this.icon && !this.label) {\n styleClass = styleClass + ' p-button-icon-only';\n }\n if (this.loading) {\n styleClass = styleClass + ' p-disabled p-button-loading';\n if (!this.icon && this.label)\n styleClass = styleClass + ' p-button-loading-label-only';\n }\n return styleClass;\n }\n setStyleClass() {\n let styleClass = this.getStyleClass();\n this.el.nativeElement.className = styleClass + ' ' + this._initialStyleClass;\n }\n createIconEl() {\n let iconElement = document.createElement(\"span\");\n iconElement.className = 'p-button-icon';\n iconElement.setAttribute(\"aria-hidden\", \"true\");\n let iconPosClass = this.label ? 'p-button-icon-' + this.iconPos : null;\n if (iconPosClass) {\n DomHandler.addClass(iconElement, iconPosClass);\n }\n let iconClass = this.getIconClass();\n if (iconClass) {\n DomHandler.addMultipleClasses(iconElement, iconClass);\n }\n let labelEl = DomHandler.findSingle(this.el.nativeElement, '.p-button-label');\n if (labelEl)\n this.el.nativeElement.insertBefore(iconElement, labelEl);\n else\n this.el.nativeElement.appendChild(iconElement);\n }\n getIconClass() {\n return this.loading ? 'p-button-loading-icon ' + this.loadingIcon : this._icon;\n }\n setIconClass() {\n let iconElement = DomHandler.findSingle(this.el.nativeElement, '.p-button-icon');\n if (iconElement) {\n if (this.iconPos)\n iconElement.className = 'p-button-icon p-button-icon-' + this.iconPos + ' ' + this.getIconClass();\n else\n iconElement.className = 'p-button-icon ' + this.getIconClass();\n }\n else {\n this.createIconEl();\n }\n }\n removeIconElement() {\n let iconElement = DomHandler.findSingle(this.el.nativeElement, '.p-button-icon');\n this.el.nativeElement.removeChild(iconElement);\n }\n get label() {\n return this._label;\n }\n set label(val) {\n this._label = val;\n if (this.initialized) {\n DomHandler.findSingle(this.el.nativeElement, '.p-button-label').textContent = this._label || ' ';\n if (this.loading || this.icon) {\n this.setIconClass();\n }\n this.setStyleClass();\n }\n }\n get icon() {\n return this._icon;\n }\n set icon(val) {\n this._icon = val;\n if (this.initialized) {\n this.setIconClass();\n this.setStyleClass();\n }\n }\n get loading() {\n return this._loading;\n }\n set loading(val) {\n this._loading = val;\n if (this.initialized) {\n if (this.loading || this.icon)\n this.setIconClass();\n else\n this.removeIconElement();\n this.setStyleClass();\n }\n }\n ngOnDestroy() {\n this.initialized = false;\n }\n}\nButtonDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ButtonDirective, deps: [{ token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Directive });\nButtonDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.0\", type: ButtonDirective, selector: \"[pButton]\", inputs: { iconPos: \"iconPos\", loadingIcon: \"loadingIcon\", label: \"label\", icon: \"icon\", loading: \"loading\" }, host: { classAttribute: \"p-element\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ButtonDirective, decorators: [{\n type: Directive,\n args: [{\n selector: '[pButton]',\n host: {\n 'class': 'p-element'\n }\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }]; }, propDecorators: { iconPos: [{\n type: Input\n }], loadingIcon: [{\n type: Input\n }], label: [{\n type: Input\n }], icon: [{\n type: Input\n }], loading: [{\n type: Input\n }] } });\nclass Button {\n constructor() {\n this.type = \"button\";\n this.iconPos = 'left';\n this.loading = false;\n this.loadingIcon = \"pi pi-spinner pi-spin\";\n this.onClick = new EventEmitter();\n this.onFocus = new EventEmitter();\n this.onBlur = new EventEmitter();\n }\n ngAfterContentInit() {\n this.templates.forEach((item) => {\n switch (item.getType()) {\n case 'content':\n this.contentTemplate = item.template;\n break;\n default:\n this.contentTemplate = item.template;\n break;\n }\n });\n }\n badgeStyleClass() {\n return {\n 'p-badge p-component': true,\n 'p-badge-no-gutter': this.badge && String(this.badge).length === 1\n };\n }\n}\nButton.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Button, deps: [], target: i0.ɵɵFactoryTarget.Component });\nButton.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: \"12.0.0\", version: \"13.0.0\", type: Button, selector: \"p-button\", inputs: { type: \"type\", iconPos: \"iconPos\", icon: \"icon\", badge: \"badge\", label: \"label\", disabled: \"disabled\", loading: \"loading\", loadingIcon: \"loadingIcon\", style: \"style\", styleClass: \"styleClass\", badgeClass: \"badgeClass\" }, outputs: { onClick: \"onClick\", onFocus: \"onFocus\", onBlur: \"onBlur\" }, host: { classAttribute: \"p-element\" }, queries: [{ propertyName: \"templates\", predicate: PrimeTemplate }], ngImport: i0, template: `\n \n `, isInline: true, directives: [{ type: i1.Ripple, selector: \"[pRipple]\" }, { type: i2.NgStyle, selector: \"[ngStyle]\", inputs: [\"ngStyle\"] }, { type: i2.NgClass, selector: \"[ngClass]\", inputs: [\"class\", \"ngClass\"] }, { type: i2.NgTemplateOutlet, selector: \"[ngTemplateOutlet]\", inputs: [\"ngTemplateOutletContext\", \"ngTemplateOutlet\"] }, { type: i2.NgIf, selector: \"[ngIf]\", inputs: [\"ngIf\", \"ngIfThen\", \"ngIfElse\"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Button, decorators: [{\n type: Component,\n args: [{\n selector: 'p-button',\n template: `\n \n `,\n changeDetection: ChangeDetectionStrategy.OnPush,\n encapsulation: ViewEncapsulation.None,\n host: {\n 'class': 'p-element'\n }\n }]\n }], propDecorators: { type: [{\n type: Input\n }], iconPos: [{\n type: Input\n }], icon: [{\n type: Input\n }], badge: [{\n type: Input\n }], label: [{\n type: Input\n }], disabled: [{\n type: Input\n }], loading: [{\n type: Input\n }], loadingIcon: [{\n type: Input\n }], style: [{\n type: Input\n }], styleClass: [{\n type: Input\n }], badgeClass: [{\n type: Input\n }], templates: [{\n type: ContentChildren,\n args: [PrimeTemplate]\n }], onClick: [{\n type: Output\n }], onFocus: [{\n type: Output\n }], onBlur: [{\n type: Output\n }] } });\nclass ButtonModule {\n}\nButtonModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ButtonModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nButtonModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ButtonModule, declarations: [ButtonDirective, Button], imports: [CommonModule, RippleModule], exports: [ButtonDirective, Button] });\nButtonModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ButtonModule, imports: [[CommonModule, RippleModule]] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ButtonModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule, RippleModule],\n exports: [ButtonDirective, Button],\n declarations: [ButtonDirective, Button]\n }]\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Button, ButtonDirective, ButtonModule };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/4f80b520d7a3ca907b841f87a34d9490.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/4f80b520d7a3ca907b841f87a34d9490.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/4f80b520d7a3ca907b841f87a34d9490.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import { DOCUMENT } from '@angular/common';\nimport * as i0 from '@angular/core';\nimport { Injectable, Inject, QueryList, Directive, Input, InjectionToken, Optional, EventEmitter, Output, NgModule } from '@angular/core';\nimport { Subject, Subscription, BehaviorSubject, of } from 'rxjs';\nimport { hasModifierKey, A, Z, ZERO, NINE, END, HOME, LEFT_ARROW, RIGHT_ARROW, UP_ARROW, DOWN_ARROW, TAB, ALT, CONTROL, MAC_META, META, SHIFT } from '@angular/cdk/keycodes';\nimport { tap, debounceTime, filter, map, take, skip, distinctUntilChanged, takeUntil } from 'rxjs/operators';\nimport { coerceBooleanProperty, coerceElement } from '@angular/cdk/coercion';\nimport * as i1 from '@angular/cdk/platform';\nimport { _getFocusedElementPierceShadowDom, normalizePassiveListenerOptions, _getEventTarget, _getShadowRoot, PlatformModule } from '@angular/cdk/platform';\nimport * as i1$1 from '@angular/cdk/observers';\nimport { ObserversModule } from '@angular/cdk/observers';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** IDs are delimited by an empty space, as per the spec. */\n\nconst ID_DELIMITER = ' ';\n/**\n * Adds the given ID to the specified ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n */\n\nfunction addAriaReferencedId(el, attr, id) {\n const ids = getAriaReferenceIds(el, attr);\n\n if (ids.some(existingId => existingId.trim() == id.trim())) {\n return;\n }\n\n ids.push(id.trim());\n el.setAttribute(attr, ids.join(ID_DELIMITER));\n}\n/**\n * Removes the given ID from the specified ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n */\n\n\nfunction removeAriaReferencedId(el, attr, id) {\n const ids = getAriaReferenceIds(el, attr);\n const filteredIds = ids.filter(val => val != id.trim());\n\n if (filteredIds.length) {\n el.setAttribute(attr, filteredIds.join(ID_DELIMITER));\n } else {\n el.removeAttribute(attr);\n }\n}\n/**\n * Gets the list of IDs referenced by the given ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n */\n\n\nfunction getAriaReferenceIds(el, attr) {\n // Get string array of all individual ids (whitespace delimited) in the attribute value\n return (el.getAttribute(attr) || '').match(/\\S+/g) || [];\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** ID used for the body container where all messages are appended. */\n\n\nconst MESSAGES_CONTAINER_ID = 'cdk-describedby-message-container';\n/** ID prefix used for each created message element. */\n\nconst CDK_DESCRIBEDBY_ID_PREFIX = 'cdk-describedby-message';\n/** Attribute given to each host element that is described by a message element. */\n\nconst CDK_DESCRIBEDBY_HOST_ATTRIBUTE = 'cdk-describedby-host';\n/** Global incremental identifier for each registered message element. */\n\nlet nextId = 0;\n/** Global map of all registered message elements that have been placed into the document. */\n\nconst messageRegistry = new Map();\n/** Container for all registered messages. */\n\nlet messagesContainer = null;\n/**\n * Utility that creates visually hidden elements with a message content. Useful for elements that\n * want to use aria-describedby to further describe themselves without adding additional visual\n * content.\n */\n\nclass AriaDescriber {\n constructor(_document) {\n this._document = _document;\n }\n\n describe(hostElement, message, role) {\n if (!this._canBeDescribed(hostElement, message)) {\n return;\n }\n\n const key = getKey(message, role);\n\n if (typeof message !== 'string') {\n // We need to ensure that the element has an ID.\n setMessageId(message);\n messageRegistry.set(key, {\n messageElement: message,\n referenceCount: 0\n });\n } else if (!messageRegistry.has(key)) {\n this._createMessageElement(message, role);\n }\n\n if (!this._isElementDescribedByMessage(hostElement, key)) {\n this._addMessageReference(hostElement, key);\n }\n }\n\n removeDescription(hostElement, message, role) {\n if (!message || !this._isElementNode(hostElement)) {\n return;\n }\n\n const key = getKey(message, role);\n\n if (this._isElementDescribedByMessage(hostElement, key)) {\n this._removeMessageReference(hostElement, key);\n } // If the message is a string, it means that it's one that we created for the\n // consumer so we can remove it safely, otherwise we should leave it in place.\n\n\n if (typeof message === 'string') {\n const registeredMessage = messageRegistry.get(key);\n\n if (registeredMessage && registeredMessage.referenceCount === 0) {\n this._deleteMessageElement(key);\n }\n }\n\n if (messagesContainer && messagesContainer.childNodes.length === 0) {\n this._deleteMessagesContainer();\n }\n }\n /** Unregisters all created message elements and removes the message container. */\n\n\n ngOnDestroy() {\n const describedElements = this._document.querySelectorAll(`[${CDK_DESCRIBEDBY_HOST_ATTRIBUTE}]`);\n\n for (let i = 0; i < describedElements.length; i++) {\n this._removeCdkDescribedByReferenceIds(describedElements[i]);\n\n describedElements[i].removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);\n }\n\n if (messagesContainer) {\n this._deleteMessagesContainer();\n }\n\n messageRegistry.clear();\n }\n /**\n * Creates a new element in the visually hidden message container element with the message\n * as its content and adds it to the message registry.\n */\n\n\n _createMessageElement(message, role) {\n const messageElement = this._document.createElement('div');\n\n setMessageId(messageElement);\n messageElement.textContent = message;\n\n if (role) {\n messageElement.setAttribute('role', role);\n }\n\n this._createMessagesContainer();\n\n messagesContainer.appendChild(messageElement);\n messageRegistry.set(getKey(message, role), {\n messageElement,\n referenceCount: 0\n });\n }\n /** Deletes the message element from the global messages container. */\n\n\n _deleteMessageElement(key) {\n const registeredMessage = messageRegistry.get(key);\n registeredMessage?.messageElement?.remove();\n messageRegistry.delete(key);\n }\n /** Creates the global container for all aria-describedby messages. */\n\n\n _createMessagesContainer() {\n if (!messagesContainer) {\n const preExistingContainer = this._document.getElementById(MESSAGES_CONTAINER_ID); // When going from the server to the client, we may end up in a situation where there's\n // already a container on the page, but we don't have a reference to it. Clear the\n // old container so we don't get duplicates. Doing this, instead of emptying the previous\n // container, should be slightly faster.\n\n\n preExistingContainer?.remove();\n messagesContainer = this._document.createElement('div');\n messagesContainer.id = MESSAGES_CONTAINER_ID; // We add `visibility: hidden` in order to prevent text in this container from\n // being searchable by the browser's Ctrl + F functionality.\n // Screen-readers will still read the description for elements with aria-describedby even\n // when the description element is not visible.\n\n messagesContainer.style.visibility = 'hidden'; // Even though we use `visibility: hidden`, we still apply `cdk-visually-hidden` so that\n // the description element doesn't impact page layout.\n\n messagesContainer.classList.add('cdk-visually-hidden');\n\n this._document.body.appendChild(messagesContainer);\n }\n }\n /** Deletes the global messages container. */\n\n\n _deleteMessagesContainer() {\n if (messagesContainer) {\n messagesContainer.remove();\n messagesContainer = null;\n }\n }\n /** Removes all cdk-describedby messages that are hosted through the element. */\n\n\n _removeCdkDescribedByReferenceIds(element) {\n // Remove all aria-describedby reference IDs that are prefixed by CDK_DESCRIBEDBY_ID_PREFIX\n const originalReferenceIds = getAriaReferenceIds(element, 'aria-describedby').filter(id => id.indexOf(CDK_DESCRIBEDBY_ID_PREFIX) != 0);\n element.setAttribute('aria-describedby', originalReferenceIds.join(' '));\n }\n /**\n * Adds a message reference to the element using aria-describedby and increments the registered\n * message's reference count.\n */\n\n\n _addMessageReference(element, key) {\n const registeredMessage = messageRegistry.get(key); // Add the aria-describedby reference and set the\n // describedby_host attribute to mark the element.\n\n addAriaReferencedId(element, 'aria-describedby', registeredMessage.messageElement.id);\n element.setAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE, '');\n registeredMessage.referenceCount++;\n }\n /**\n * Removes a message reference from the element using aria-describedby\n * and decrements the registered message's reference count.\n */\n\n\n _removeMessageReference(element, key) {\n const registeredMessage = messageRegistry.get(key);\n registeredMessage.referenceCount--;\n removeAriaReferencedId(element, 'aria-describedby', registeredMessage.messageElement.id);\n element.removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);\n }\n /** Returns true if the element has been described by the provided message ID. */\n\n\n _isElementDescribedByMessage(element, key) {\n const referenceIds = getAriaReferenceIds(element, 'aria-describedby');\n const registeredMessage = messageRegistry.get(key);\n const messageId = registeredMessage && registeredMessage.messageElement.id;\n return !!messageId && referenceIds.indexOf(messageId) != -1;\n }\n /** Determines whether a message can be described on a particular element. */\n\n\n _canBeDescribed(element, message) {\n if (!this._isElementNode(element)) {\n return false;\n }\n\n if (message && typeof message === 'object') {\n // We'd have to make some assumptions about the description element's text, if the consumer\n // passed in an element. Assume that if an element is passed in, the consumer has verified\n // that it can be used as a description.\n return true;\n }\n\n const trimmedMessage = message == null ? '' : `${message}`.trim();\n const ariaLabel = element.getAttribute('aria-label'); // We shouldn't set descriptions if they're exactly the same as the `aria-label` of the\n // element, because screen readers will end up reading out the same text twice in a row.\n\n return trimmedMessage ? !ariaLabel || ariaLabel.trim() !== trimmedMessage : false;\n }\n /** Checks whether a node is an Element node. */\n\n\n _isElementNode(element) {\n return element.nodeType === this._document.ELEMENT_NODE;\n }\n\n}\n\nAriaDescriber.ɵfac = function AriaDescriber_Factory(t) {\n return new (t || AriaDescriber)(i0.ɵɵinject(DOCUMENT));\n};\n\nAriaDescriber.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: AriaDescriber,\n factory: AriaDescriber.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(AriaDescriber, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/** Gets a key that can be used to look messages up in the registry. */\n\n\nfunction getKey(message, role) {\n return typeof message === 'string' ? `${role || ''}/${message}` : message;\n}\n/** Assigns a unique ID to an element, if it doesn't have one already. */\n\n\nfunction setMessageId(element) {\n if (!element.id) {\n element.id = `${CDK_DESCRIBEDBY_ID_PREFIX}-${nextId++}`;\n }\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * This class manages keyboard events for selectable lists. If you pass it a query list\n * of items, it will set the active item correctly when arrow events occur.\n */\n\n\nclass ListKeyManager {\n constructor(_items) {\n this._items = _items;\n this._activeItemIndex = -1;\n this._activeItem = null;\n this._wrap = false;\n this._letterKeyStream = new Subject();\n this._typeaheadSubscription = Subscription.EMPTY;\n this._vertical = true;\n this._allowedModifierKeys = [];\n this._homeAndEnd = false;\n /**\n * Predicate function that can be used to check whether an item should be skipped\n * by the key manager. By default, disabled items are skipped.\n */\n\n this._skipPredicateFn = item => item.disabled; // Buffer for the letters that the user has pressed when the typeahead option is turned on.\n\n\n this._pressedLetters = [];\n /**\n * Stream that emits any time the TAB key is pressed, so components can react\n * when focus is shifted off of the list.\n */\n\n this.tabOut = new Subject();\n /** Stream that emits whenever the active item of the list manager changes. */\n\n this.change = new Subject(); // We allow for the items to be an array because, in some cases, the consumer may\n // not have access to a QueryList of the items they want to manage (e.g. when the\n // items aren't being collected via `ViewChildren` or `ContentChildren`).\n\n if (_items instanceof QueryList) {\n _items.changes.subscribe(newItems => {\n if (this._activeItem) {\n const itemArray = newItems.toArray();\n const newIndex = itemArray.indexOf(this._activeItem);\n\n if (newIndex > -1 && newIndex !== this._activeItemIndex) {\n this._activeItemIndex = newIndex;\n }\n }\n });\n }\n }\n /**\n * Sets the predicate function that determines which items should be skipped by the\n * list key manager.\n * @param predicate Function that determines whether the given item should be skipped.\n */\n\n\n skipPredicate(predicate) {\n this._skipPredicateFn = predicate;\n return this;\n }\n /**\n * Configures wrapping mode, which determines whether the active item will wrap to\n * the other end of list when there are no more items in the given direction.\n * @param shouldWrap Whether the list should wrap when reaching the end.\n */\n\n\n withWrap(shouldWrap = true) {\n this._wrap = shouldWrap;\n return this;\n }\n /**\n * Configures whether the key manager should be able to move the selection vertically.\n * @param enabled Whether vertical selection should be enabled.\n */\n\n\n withVerticalOrientation(enabled = true) {\n this._vertical = enabled;\n return this;\n }\n /**\n * Configures the key manager to move the selection horizontally.\n * Passing in `null` will disable horizontal movement.\n * @param direction Direction in which the selection can be moved.\n */\n\n\n withHorizontalOrientation(direction) {\n this._horizontal = direction;\n return this;\n }\n /**\n * Modifier keys which are allowed to be held down and whose default actions will be prevented\n * as the user is pressing the arrow keys. Defaults to not allowing any modifier keys.\n */\n\n\n withAllowedModifierKeys(keys) {\n this._allowedModifierKeys = keys;\n return this;\n }\n /**\n * Turns on typeahead mode which allows users to set the active item by typing.\n * @param debounceInterval Time to wait after the last keystroke before setting the active item.\n */\n\n\n withTypeAhead(debounceInterval = 200) {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && this._items.length && this._items.some(item => typeof item.getLabel !== 'function')) {\n throw Error('ListKeyManager items in typeahead mode must implement the `getLabel` method.');\n }\n\n this._typeaheadSubscription.unsubscribe(); // Debounce the presses of non-navigational keys, collect the ones that correspond to letters\n // and convert those letters back into a string. Afterwards find the first item that starts\n // with that string and select it.\n\n\n this._typeaheadSubscription = this._letterKeyStream.pipe(tap(letter => this._pressedLetters.push(letter)), debounceTime(debounceInterval), filter(() => this._pressedLetters.length > 0), map(() => this._pressedLetters.join(''))).subscribe(inputString => {\n const items = this._getItemsArray(); // Start at 1 because we want to start searching at the item immediately\n // following the current active item.\n\n\n for (let i = 1; i < items.length + 1; i++) {\n const index = (this._activeItemIndex + i) % items.length;\n const item = items[index];\n\n if (!this._skipPredicateFn(item) && item.getLabel().toUpperCase().trim().indexOf(inputString) === 0) {\n this.setActiveItem(index);\n break;\n }\n }\n\n this._pressedLetters = [];\n });\n return this;\n }\n /**\n * Configures the key manager to activate the first and last items\n * respectively when the Home or End key is pressed.\n * @param enabled Whether pressing the Home or End key activates the first/last item.\n */\n\n\n withHomeAndEnd(enabled = true) {\n this._homeAndEnd = enabled;\n return this;\n }\n\n setActiveItem(item) {\n const previousActiveItem = this._activeItem;\n this.updateActiveItem(item);\n\n if (this._activeItem !== previousActiveItem) {\n this.change.next(this._activeItemIndex);\n }\n }\n /**\n * Sets the active item depending on the key event passed in.\n * @param event Keyboard event to be used for determining which element should be active.\n */\n\n\n onKeydown(event) {\n const keyCode = event.keyCode;\n const modifiers = ['altKey', 'ctrlKey', 'metaKey', 'shiftKey'];\n const isModifierAllowed = modifiers.every(modifier => {\n return !event[modifier] || this._allowedModifierKeys.indexOf(modifier) > -1;\n });\n\n switch (keyCode) {\n case TAB:\n this.tabOut.next();\n return;\n\n case DOWN_ARROW:\n if (this._vertical && isModifierAllowed) {\n this.setNextItemActive();\n break;\n } else {\n return;\n }\n\n case UP_ARROW:\n if (this._vertical && isModifierAllowed) {\n this.setPreviousItemActive();\n break;\n } else {\n return;\n }\n\n case RIGHT_ARROW:\n if (this._horizontal && isModifierAllowed) {\n this._horizontal === 'rtl' ? this.setPreviousItemActive() : this.setNextItemActive();\n break;\n } else {\n return;\n }\n\n case LEFT_ARROW:\n if (this._horizontal && isModifierAllowed) {\n this._horizontal === 'rtl' ? this.setNextItemActive() : this.setPreviousItemActive();\n break;\n } else {\n return;\n }\n\n case HOME:\n if (this._homeAndEnd && isModifierAllowed) {\n this.setFirstItemActive();\n break;\n } else {\n return;\n }\n\n case END:\n if (this._homeAndEnd && isModifierAllowed) {\n this.setLastItemActive();\n break;\n } else {\n return;\n }\n\n default:\n if (isModifierAllowed || hasModifierKey(event, 'shiftKey')) {\n // Attempt to use the `event.key` which also maps it to the user's keyboard language,\n // otherwise fall back to resolving alphanumeric characters via the keyCode.\n if (event.key && event.key.length === 1) {\n this._letterKeyStream.next(event.key.toLocaleUpperCase());\n } else if (keyCode >= A && keyCode <= Z || keyCode >= ZERO && keyCode <= NINE) {\n this._letterKeyStream.next(String.fromCharCode(keyCode));\n }\n } // Note that we return here, in order to avoid preventing\n // the default action of non-navigational keys.\n\n\n return;\n }\n\n this._pressedLetters = [];\n event.preventDefault();\n }\n /** Index of the currently active item. */\n\n\n get activeItemIndex() {\n return this._activeItemIndex;\n }\n /** The active item. */\n\n\n get activeItem() {\n return this._activeItem;\n }\n /** Gets whether the user is currently typing into the manager using the typeahead feature. */\n\n\n isTyping() {\n return this._pressedLetters.length > 0;\n }\n /** Sets the active item to the first enabled item in the list. */\n\n\n setFirstItemActive() {\n this._setActiveItemByIndex(0, 1);\n }\n /** Sets the active item to the last enabled item in the list. */\n\n\n setLastItemActive() {\n this._setActiveItemByIndex(this._items.length - 1, -1);\n }\n /** Sets the active item to the next enabled item in the list. */\n\n\n setNextItemActive() {\n this._activeItemIndex < 0 ? this.setFirstItemActive() : this._setActiveItemByDelta(1);\n }\n /** Sets the active item to a previous enabled item in the list. */\n\n\n setPreviousItemActive() {\n this._activeItemIndex < 0 && this._wrap ? this.setLastItemActive() : this._setActiveItemByDelta(-1);\n }\n\n updateActiveItem(item) {\n const itemArray = this._getItemsArray();\n\n const index = typeof item === 'number' ? item : itemArray.indexOf(item);\n const activeItem = itemArray[index]; // Explicitly check for `null` and `undefined` because other falsy values are valid.\n\n this._activeItem = activeItem == null ? null : activeItem;\n this._activeItemIndex = index;\n }\n /**\n * This method sets the active item, given a list of items and the delta between the\n * currently active item and the new active item. It will calculate differently\n * depending on whether wrap mode is turned on.\n */\n\n\n _setActiveItemByDelta(delta) {\n this._wrap ? this._setActiveInWrapMode(delta) : this._setActiveInDefaultMode(delta);\n }\n /**\n * Sets the active item properly given \"wrap\" mode. In other words, it will continue to move\n * down the list until it finds an item that is not disabled, and it will wrap if it\n * encounters either end of the list.\n */\n\n\n _setActiveInWrapMode(delta) {\n const items = this._getItemsArray();\n\n for (let i = 1; i <= items.length; i++) {\n const index = (this._activeItemIndex + delta * i + items.length) % items.length;\n const item = items[index];\n\n if (!this._skipPredicateFn(item)) {\n this.setActiveItem(index);\n return;\n }\n }\n }\n /**\n * Sets the active item properly given the default mode. In other words, it will\n * continue to move down the list until it finds an item that is not disabled. If\n * it encounters either end of the list, it will stop and not wrap.\n */\n\n\n _setActiveInDefaultMode(delta) {\n this._setActiveItemByIndex(this._activeItemIndex + delta, delta);\n }\n /**\n * Sets the active item to the first enabled item starting at the index specified. If the\n * item is disabled, it will move in the fallbackDelta direction until it either\n * finds an enabled item or encounters the end of the list.\n */\n\n\n _setActiveItemByIndex(index, fallbackDelta) {\n const items = this._getItemsArray();\n\n if (!items[index]) {\n return;\n }\n\n while (this._skipPredicateFn(items[index])) {\n index += fallbackDelta;\n\n if (!items[index]) {\n return;\n }\n }\n\n this.setActiveItem(index);\n }\n /** Returns the items as an array. */\n\n\n _getItemsArray() {\n return this._items instanceof QueryList ? this._items.toArray() : this._items;\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nclass ActiveDescendantKeyManager extends ListKeyManager {\n setActiveItem(index) {\n if (this.activeItem) {\n this.activeItem.setInactiveStyles();\n }\n\n super.setActiveItem(index);\n\n if (this.activeItem) {\n this.activeItem.setActiveStyles();\n }\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nclass FocusKeyManager extends ListKeyManager {\n constructor() {\n super(...arguments);\n this._origin = 'program';\n }\n /**\n * Sets the focus origin that will be passed in to the items for any subsequent `focus` calls.\n * @param origin Focus origin to be used when focusing items.\n */\n\n\n setFocusOrigin(origin) {\n this._origin = origin;\n return this;\n }\n\n setActiveItem(item) {\n super.setActiveItem(item);\n\n if (this.activeItem) {\n this.activeItem.focus(this._origin);\n }\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Configuration for the isFocusable method.\n */\n\n\nclass IsFocusableConfig {\n constructor() {\n /**\n * Whether to count an element as focusable even if it is not currently visible.\n */\n this.ignoreVisibility = false;\n }\n\n} // The InteractivityChecker leans heavily on the ally.js accessibility utilities.\n// Methods like `isTabbable` are only covering specific edge-cases for the browsers which are\n// supported.\n\n/**\n * Utility for checking the interactivity of an element, such as whether is is focusable or\n * tabbable.\n */\n\n\nclass InteractivityChecker {\n constructor(_platform) {\n this._platform = _platform;\n }\n /**\n * Gets whether an element is disabled.\n *\n * @param element Element to be checked.\n * @returns Whether the element is disabled.\n */\n\n\n isDisabled(element) {\n // This does not capture some cases, such as a non-form control with a disabled attribute or\n // a form control inside of a disabled form, but should capture the most common cases.\n return element.hasAttribute('disabled');\n }\n /**\n * Gets whether an element is visible for the purposes of interactivity.\n *\n * This will capture states like `display: none` and `visibility: hidden`, but not things like\n * being clipped by an `overflow: hidden` parent or being outside the viewport.\n *\n * @returns Whether the element is visible.\n */\n\n\n isVisible(element) {\n return hasGeometry(element) && getComputedStyle(element).visibility === 'visible';\n }\n /**\n * Gets whether an element can be reached via Tab key.\n * Assumes that the element has already been checked with isFocusable.\n *\n * @param element Element to be checked.\n * @returns Whether the element is tabbable.\n */\n\n\n isTabbable(element) {\n // Nothing is tabbable on the server 😎\n if (!this._platform.isBrowser) {\n return false;\n }\n\n const frameElement = getFrameElement(getWindow(element));\n\n if (frameElement) {\n // Frame elements inherit their tabindex onto all child elements.\n if (getTabIndexValue(frameElement) === -1) {\n return false;\n } // Browsers disable tabbing to an element inside of an invisible frame.\n\n\n if (!this.isVisible(frameElement)) {\n return false;\n }\n }\n\n let nodeName = element.nodeName.toLowerCase();\n let tabIndexValue = getTabIndexValue(element);\n\n if (element.hasAttribute('contenteditable')) {\n return tabIndexValue !== -1;\n }\n\n if (nodeName === 'iframe' || nodeName === 'object') {\n // The frame or object's content may be tabbable depending on the content, but it's\n // not possibly to reliably detect the content of the frames. We always consider such\n // elements as non-tabbable.\n return false;\n } // In iOS, the browser only considers some specific elements as tabbable.\n\n\n if (this._platform.WEBKIT && this._platform.IOS && !isPotentiallyTabbableIOS(element)) {\n return false;\n }\n\n if (nodeName === 'audio') {\n // Audio elements without controls enabled are never tabbable, regardless\n // of the tabindex attribute explicitly being set.\n if (!element.hasAttribute('controls')) {\n return false;\n } // Audio elements with controls are by default tabbable unless the\n // tabindex attribute is set to `-1` explicitly.\n\n\n return tabIndexValue !== -1;\n }\n\n if (nodeName === 'video') {\n // For all video elements, if the tabindex attribute is set to `-1`, the video\n // is not tabbable. Note: We cannot rely on the default `HTMLElement.tabIndex`\n // property as that one is set to `-1` in Chrome, Edge and Safari v13.1. The\n // tabindex attribute is the source of truth here.\n if (tabIndexValue === -1) {\n return false;\n } // If the tabindex is explicitly set, and not `-1` (as per check before), the\n // video element is always tabbable (regardless of whether it has controls or not).\n\n\n if (tabIndexValue !== null) {\n return true;\n } // Otherwise (when no explicit tabindex is set), a video is only tabbable if it\n // has controls enabled. Firefox is special as videos are always tabbable regardless\n // of whether there are controls or not.\n\n\n return this._platform.FIREFOX || element.hasAttribute('controls');\n }\n\n return element.tabIndex >= 0;\n }\n /**\n * Gets whether an element can be focused by the user.\n *\n * @param element Element to be checked.\n * @param config The config object with options to customize this method's behavior\n * @returns Whether the element is focusable.\n */\n\n\n isFocusable(element, config) {\n // Perform checks in order of left to most expensive.\n // Again, naive approach that does not capture many edge cases and browser quirks.\n return isPotentiallyFocusable(element) && !this.isDisabled(element) && (config?.ignoreVisibility || this.isVisible(element));\n }\n\n}\n\nInteractivityChecker.ɵfac = function InteractivityChecker_Factory(t) {\n return new (t || InteractivityChecker)(i0.ɵɵinject(i1.Platform));\n};\n\nInteractivityChecker.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: InteractivityChecker,\n factory: InteractivityChecker.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(InteractivityChecker, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.Platform\n }];\n }, null);\n})();\n/**\n * Returns the frame element from a window object. Since browsers like MS Edge throw errors if\n * the frameElement property is being accessed from a different host address, this property\n * should be accessed carefully.\n */\n\n\nfunction getFrameElement(window) {\n try {\n return window.frameElement;\n } catch {\n return null;\n }\n}\n/** Checks whether the specified element has any geometry / rectangles. */\n\n\nfunction hasGeometry(element) {\n // Use logic from jQuery to check for an invisible element.\n // See https://github.com/jquery/jquery/blob/master/src/css/hiddenVisibleSelectors.js#L12\n return !!(element.offsetWidth || element.offsetHeight || typeof element.getClientRects === 'function' && element.getClientRects().length);\n}\n/** Gets whether an element's */\n\n\nfunction isNativeFormElement(element) {\n let nodeName = element.nodeName.toLowerCase();\n return nodeName === 'input' || nodeName === 'select' || nodeName === 'button' || nodeName === 'textarea';\n}\n/** Gets whether an element is an ``. */\n\n\nfunction isHiddenInput(element) {\n return isInputElement(element) && element.type == 'hidden';\n}\n/** Gets whether an element is an anchor that has an href attribute. */\n\n\nfunction isAnchorWithHref(element) {\n return isAnchorElement(element) && element.hasAttribute('href');\n}\n/** Gets whether an element is an input element. */\n\n\nfunction isInputElement(element) {\n return element.nodeName.toLowerCase() == 'input';\n}\n/** Gets whether an element is an anchor element. */\n\n\nfunction isAnchorElement(element) {\n return element.nodeName.toLowerCase() == 'a';\n}\n/** Gets whether an element has a valid tabindex. */\n\n\nfunction hasValidTabIndex(element) {\n if (!element.hasAttribute('tabindex') || element.tabIndex === undefined) {\n return false;\n }\n\n let tabIndex = element.getAttribute('tabindex');\n return !!(tabIndex && !isNaN(parseInt(tabIndex, 10)));\n}\n/**\n * Returns the parsed tabindex from the element attributes instead of returning the\n * evaluated tabindex from the browsers defaults.\n */\n\n\nfunction getTabIndexValue(element) {\n if (!hasValidTabIndex(element)) {\n return null;\n } // See browser issue in Gecko https://bugzilla.mozilla.org/show_bug.cgi?id=1128054\n\n\n const tabIndex = parseInt(element.getAttribute('tabindex') || '', 10);\n return isNaN(tabIndex) ? -1 : tabIndex;\n}\n/** Checks whether the specified element is potentially tabbable on iOS */\n\n\nfunction isPotentiallyTabbableIOS(element) {\n let nodeName = element.nodeName.toLowerCase();\n let inputType = nodeName === 'input' && element.type;\n return inputType === 'text' || inputType === 'password' || nodeName === 'select' || nodeName === 'textarea';\n}\n/**\n * Gets whether an element is potentially focusable without taking current visible/disabled state\n * into account.\n */\n\n\nfunction isPotentiallyFocusable(element) {\n // Inputs are potentially focusable *unless* they're type=\"hidden\".\n if (isHiddenInput(element)) {\n return false;\n }\n\n return isNativeFormElement(element) || isAnchorWithHref(element) || element.hasAttribute('contenteditable') || hasValidTabIndex(element);\n}\n/** Gets the parent window of a DOM node with regards of being inside of an iframe. */\n\n\nfunction getWindow(node) {\n // ownerDocument is null if `node` itself *is* a document.\n return node.ownerDocument && node.ownerDocument.defaultView || window;\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Class that allows for trapping focus within a DOM element.\n *\n * This class currently uses a relatively simple approach to focus trapping.\n * It assumes that the tab order is the same as DOM order, which is not necessarily true.\n * Things like `tabIndex > 0`, flex `order`, and shadow roots can cause the two to be misaligned.\n *\n * @deprecated Use `ConfigurableFocusTrap` instead.\n * @breaking-change 11.0.0\n */\n\n\nclass FocusTrap {\n constructor(_element, _checker, _ngZone, _document, deferAnchors = false) {\n this._element = _element;\n this._checker = _checker;\n this._ngZone = _ngZone;\n this._document = _document;\n this._hasAttached = false; // Event listeners for the anchors. Need to be regular functions so that we can unbind them later.\n\n this.startAnchorListener = () => this.focusLastTabbableElement();\n\n this.endAnchorListener = () => this.focusFirstTabbableElement();\n\n this._enabled = true;\n\n if (!deferAnchors) {\n this.attachAnchors();\n }\n }\n /** Whether the focus trap is active. */\n\n\n get enabled() {\n return this._enabled;\n }\n\n set enabled(value) {\n this._enabled = value;\n\n if (this._startAnchor && this._endAnchor) {\n this._toggleAnchorTabIndex(value, this._startAnchor);\n\n this._toggleAnchorTabIndex(value, this._endAnchor);\n }\n }\n /** Destroys the focus trap by cleaning up the anchors. */\n\n\n destroy() {\n const startAnchor = this._startAnchor;\n const endAnchor = this._endAnchor;\n\n if (startAnchor) {\n startAnchor.removeEventListener('focus', this.startAnchorListener);\n startAnchor.remove();\n }\n\n if (endAnchor) {\n endAnchor.removeEventListener('focus', this.endAnchorListener);\n endAnchor.remove();\n }\n\n this._startAnchor = this._endAnchor = null;\n this._hasAttached = false;\n }\n /**\n * Inserts the anchors into the DOM. This is usually done automatically\n * in the constructor, but can be deferred for cases like directives with `*ngIf`.\n * @returns Whether the focus trap managed to attach successfully. This may not be the case\n * if the target element isn't currently in the DOM.\n */\n\n\n attachAnchors() {\n // If we're not on the browser, there can be no focus to trap.\n if (this._hasAttached) {\n return true;\n }\n\n this._ngZone.runOutsideAngular(() => {\n if (!this._startAnchor) {\n this._startAnchor = this._createAnchor();\n\n this._startAnchor.addEventListener('focus', this.startAnchorListener);\n }\n\n if (!this._endAnchor) {\n this._endAnchor = this._createAnchor();\n\n this._endAnchor.addEventListener('focus', this.endAnchorListener);\n }\n });\n\n if (this._element.parentNode) {\n this._element.parentNode.insertBefore(this._startAnchor, this._element);\n\n this._element.parentNode.insertBefore(this._endAnchor, this._element.nextSibling);\n\n this._hasAttached = true;\n }\n\n return this._hasAttached;\n }\n /**\n * Waits for the zone to stabilize, then focuses the first tabbable element.\n * @returns Returns a promise that resolves with a boolean, depending\n * on whether focus was moved successfully.\n */\n\n\n focusInitialElementWhenReady(options) {\n return new Promise(resolve => {\n this._executeOnStable(() => resolve(this.focusInitialElement(options)));\n });\n }\n /**\n * Waits for the zone to stabilize, then focuses\n * the first tabbable element within the focus trap region.\n * @returns Returns a promise that resolves with a boolean, depending\n * on whether focus was moved successfully.\n */\n\n\n focusFirstTabbableElementWhenReady(options) {\n return new Promise(resolve => {\n this._executeOnStable(() => resolve(this.focusFirstTabbableElement(options)));\n });\n }\n /**\n * Waits for the zone to stabilize, then focuses\n * the last tabbable element within the focus trap region.\n * @returns Returns a promise that resolves with a boolean, depending\n * on whether focus was moved successfully.\n */\n\n\n focusLastTabbableElementWhenReady(options) {\n return new Promise(resolve => {\n this._executeOnStable(() => resolve(this.focusLastTabbableElement(options)));\n });\n }\n /**\n * Get the specified boundary element of the trapped region.\n * @param bound The boundary to get (start or end of trapped region).\n * @returns The boundary element.\n */\n\n\n _getRegionBoundary(bound) {\n // Contains the deprecated version of selector, for temporary backwards comparability.\n let markers = this._element.querySelectorAll(`[cdk-focus-region-${bound}], ` + `[cdkFocusRegion${bound}], ` + `[cdk-focus-${bound}]`);\n\n for (let i = 0; i < markers.length; i++) {\n // @breaking-change 8.0.0\n if (markers[i].hasAttribute(`cdk-focus-${bound}`)) {\n console.warn(`Found use of deprecated attribute 'cdk-focus-${bound}', ` + `use 'cdkFocusRegion${bound}' instead. The deprecated ` + `attribute will be removed in 8.0.0.`, markers[i]);\n } else if (markers[i].hasAttribute(`cdk-focus-region-${bound}`)) {\n console.warn(`Found use of deprecated attribute 'cdk-focus-region-${bound}', ` + `use 'cdkFocusRegion${bound}' instead. The deprecated attribute ` + `will be removed in 8.0.0.`, markers[i]);\n }\n }\n\n if (bound == 'start') {\n return markers.length ? markers[0] : this._getFirstTabbableElement(this._element);\n }\n\n return markers.length ? markers[markers.length - 1] : this._getLastTabbableElement(this._element);\n }\n /**\n * Focuses the element that should be focused when the focus trap is initialized.\n * @returns Whether focus was moved successfully.\n */\n\n\n focusInitialElement(options) {\n // Contains the deprecated version of selector, for temporary backwards comparability.\n const redirectToElement = this._element.querySelector(`[cdk-focus-initial], ` + `[cdkFocusInitial]`);\n\n if (redirectToElement) {\n // @breaking-change 8.0.0\n if (redirectToElement.hasAttribute(`cdk-focus-initial`)) {\n console.warn(`Found use of deprecated attribute 'cdk-focus-initial', ` + `use 'cdkFocusInitial' instead. The deprecated attribute ` + `will be removed in 8.0.0`, redirectToElement);\n } // Warn the consumer if the element they've pointed to\n // isn't focusable, when not in production mode.\n\n\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && !this._checker.isFocusable(redirectToElement)) {\n console.warn(`Element matching '[cdkFocusInitial]' is not focusable.`, redirectToElement);\n }\n\n if (!this._checker.isFocusable(redirectToElement)) {\n const focusableChild = this._getFirstTabbableElement(redirectToElement);\n\n focusableChild?.focus(options);\n return !!focusableChild;\n }\n\n redirectToElement.focus(options);\n return true;\n }\n\n return this.focusFirstTabbableElement(options);\n }\n /**\n * Focuses the first tabbable element within the focus trap region.\n * @returns Whether focus was moved successfully.\n */\n\n\n focusFirstTabbableElement(options) {\n const redirectToElement = this._getRegionBoundary('start');\n\n if (redirectToElement) {\n redirectToElement.focus(options);\n }\n\n return !!redirectToElement;\n }\n /**\n * Focuses the last tabbable element within the focus trap region.\n * @returns Whether focus was moved successfully.\n */\n\n\n focusLastTabbableElement(options) {\n const redirectToElement = this._getRegionBoundary('end');\n\n if (redirectToElement) {\n redirectToElement.focus(options);\n }\n\n return !!redirectToElement;\n }\n /**\n * Checks whether the focus trap has successfully been attached.\n */\n\n\n hasAttached() {\n return this._hasAttached;\n }\n /** Get the first tabbable element from a DOM subtree (inclusive). */\n\n\n _getFirstTabbableElement(root) {\n if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {\n return root;\n }\n\n const children = root.children;\n\n for (let i = 0; i < children.length; i++) {\n const tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE ? this._getFirstTabbableElement(children[i]) : null;\n\n if (tabbableChild) {\n return tabbableChild;\n }\n }\n\n return null;\n }\n /** Get the last tabbable element from a DOM subtree (inclusive). */\n\n\n _getLastTabbableElement(root) {\n if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {\n return root;\n } // Iterate in reverse DOM order.\n\n\n const children = root.children;\n\n for (let i = children.length - 1; i >= 0; i--) {\n const tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE ? this._getLastTabbableElement(children[i]) : null;\n\n if (tabbableChild) {\n return tabbableChild;\n }\n }\n\n return null;\n }\n /** Creates an anchor element. */\n\n\n _createAnchor() {\n const anchor = this._document.createElement('div');\n\n this._toggleAnchorTabIndex(this._enabled, anchor);\n\n anchor.classList.add('cdk-visually-hidden');\n anchor.classList.add('cdk-focus-trap-anchor');\n anchor.setAttribute('aria-hidden', 'true');\n return anchor;\n }\n /**\n * Toggles the `tabindex` of an anchor, based on the enabled state of the focus trap.\n * @param isEnabled Whether the focus trap is enabled.\n * @param anchor Anchor on which to toggle the tabindex.\n */\n\n\n _toggleAnchorTabIndex(isEnabled, anchor) {\n // Remove the tabindex completely, rather than setting it to -1, because if the\n // element has a tabindex, the user might still hit it when navigating with the arrow keys.\n isEnabled ? anchor.setAttribute('tabindex', '0') : anchor.removeAttribute('tabindex');\n }\n /**\n * Toggles the`tabindex` of both anchors to either trap Tab focus or allow it to escape.\n * @param enabled: Whether the anchors should trap Tab.\n */\n\n\n toggleAnchors(enabled) {\n if (this._startAnchor && this._endAnchor) {\n this._toggleAnchorTabIndex(enabled, this._startAnchor);\n\n this._toggleAnchorTabIndex(enabled, this._endAnchor);\n }\n }\n /** Executes a function when the zone is stable. */\n\n\n _executeOnStable(fn) {\n if (this._ngZone.isStable) {\n fn();\n } else {\n this._ngZone.onStable.pipe(take(1)).subscribe(fn);\n }\n }\n\n}\n/**\n * Factory that allows easy instantiation of focus traps.\n * @deprecated Use `ConfigurableFocusTrapFactory` instead.\n * @breaking-change 11.0.0\n */\n\n\nclass FocusTrapFactory {\n constructor(_checker, _ngZone, _document) {\n this._checker = _checker;\n this._ngZone = _ngZone;\n this._document = _document;\n }\n /**\n * Creates a focus-trapped region around the given element.\n * @param element The element around which focus will be trapped.\n * @param deferCaptureElements Defers the creation of focus-capturing elements to be done\n * manually by the user.\n * @returns The created focus trap instance.\n */\n\n\n create(element, deferCaptureElements = false) {\n return new FocusTrap(element, this._checker, this._ngZone, this._document, deferCaptureElements);\n }\n\n}\n\nFocusTrapFactory.ɵfac = function FocusTrapFactory_Factory(t) {\n return new (t || FocusTrapFactory)(i0.ɵɵinject(InteractivityChecker), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(DOCUMENT));\n};\n\nFocusTrapFactory.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: FocusTrapFactory,\n factory: FocusTrapFactory.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(FocusTrapFactory, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: InteractivityChecker\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/** Directive for trapping focus within a region. */\n\n\nclass CdkTrapFocus {\n constructor(_elementRef, _focusTrapFactory,\n /**\n * @deprecated No longer being used. To be removed.\n * @breaking-change 13.0.0\n */\n _document) {\n this._elementRef = _elementRef;\n this._focusTrapFactory = _focusTrapFactory;\n /** Previously focused element to restore focus to upon destroy when using autoCapture. */\n\n this._previouslyFocusedElement = null;\n this.focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement, true);\n }\n /** Whether the focus trap is active. */\n\n\n get enabled() {\n return this.focusTrap.enabled;\n }\n\n set enabled(value) {\n this.focusTrap.enabled = coerceBooleanProperty(value);\n }\n /**\n * Whether the directive should automatically move focus into the trapped region upon\n * initialization and return focus to the previous activeElement upon destruction.\n */\n\n\n get autoCapture() {\n return this._autoCapture;\n }\n\n set autoCapture(value) {\n this._autoCapture = coerceBooleanProperty(value);\n }\n\n ngOnDestroy() {\n this.focusTrap.destroy(); // If we stored a previously focused element when using autoCapture, return focus to that\n // element now that the trapped region is being destroyed.\n\n if (this._previouslyFocusedElement) {\n this._previouslyFocusedElement.focus();\n\n this._previouslyFocusedElement = null;\n }\n }\n\n ngAfterContentInit() {\n this.focusTrap.attachAnchors();\n\n if (this.autoCapture) {\n this._captureFocus();\n }\n }\n\n ngDoCheck() {\n if (!this.focusTrap.hasAttached()) {\n this.focusTrap.attachAnchors();\n }\n }\n\n ngOnChanges(changes) {\n const autoCaptureChange = changes['autoCapture'];\n\n if (autoCaptureChange && !autoCaptureChange.firstChange && this.autoCapture && this.focusTrap.hasAttached()) {\n this._captureFocus();\n }\n }\n\n _captureFocus() {\n this._previouslyFocusedElement = _getFocusedElementPierceShadowDom();\n this.focusTrap.focusInitialElementWhenReady();\n }\n\n}\n\nCdkTrapFocus.ɵfac = function CdkTrapFocus_Factory(t) {\n return new (t || CdkTrapFocus)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(FocusTrapFactory), i0.ɵɵdirectiveInject(DOCUMENT));\n};\n\nCdkTrapFocus.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkTrapFocus,\n selectors: [[\"\", \"cdkTrapFocus\", \"\"]],\n inputs: {\n enabled: [\"cdkTrapFocus\", \"enabled\"],\n autoCapture: [\"cdkTrapFocusAutoCapture\", \"autoCapture\"]\n },\n exportAs: [\"cdkTrapFocus\"],\n features: [i0.ɵɵNgOnChangesFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkTrapFocus, [{\n type: Directive,\n args: [{\n selector: '[cdkTrapFocus]',\n exportAs: 'cdkTrapFocus'\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: FocusTrapFactory\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, {\n enabled: [{\n type: Input,\n args: ['cdkTrapFocus']\n }],\n autoCapture: [{\n type: Input,\n args: ['cdkTrapFocusAutoCapture']\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Class that allows for trapping focus within a DOM element.\n *\n * This class uses a strategy pattern that determines how it traps focus.\n * See FocusTrapInertStrategy.\n */\n\n\nclass ConfigurableFocusTrap extends FocusTrap {\n constructor(_element, _checker, _ngZone, _document, _focusTrapManager, _inertStrategy, config) {\n super(_element, _checker, _ngZone, _document, config.defer);\n this._focusTrapManager = _focusTrapManager;\n this._inertStrategy = _inertStrategy;\n\n this._focusTrapManager.register(this);\n }\n /** Whether the FocusTrap is enabled. */\n\n\n get enabled() {\n return this._enabled;\n }\n\n set enabled(value) {\n this._enabled = value;\n\n if (this._enabled) {\n this._focusTrapManager.register(this);\n } else {\n this._focusTrapManager.deregister(this);\n }\n }\n /** Notifies the FocusTrapManager that this FocusTrap will be destroyed. */\n\n\n destroy() {\n this._focusTrapManager.deregister(this);\n\n super.destroy();\n }\n /** @docs-private Implemented as part of ManagedFocusTrap. */\n\n\n _enable() {\n this._inertStrategy.preventFocus(this);\n\n this.toggleAnchors(true);\n }\n /** @docs-private Implemented as part of ManagedFocusTrap. */\n\n\n _disable() {\n this._inertStrategy.allowFocus(this);\n\n this.toggleAnchors(false);\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** The injection token used to specify the inert strategy. */\n\n\nconst FOCUS_TRAP_INERT_STRATEGY = new InjectionToken('FOCUS_TRAP_INERT_STRATEGY');\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Lightweight FocusTrapInertStrategy that adds a document focus event\n * listener to redirect focus back inside the FocusTrap.\n */\n\nclass EventListenerFocusTrapInertStrategy {\n constructor() {\n /** Focus event handler. */\n this._listener = null;\n }\n /** Adds a document event listener that keeps focus inside the FocusTrap. */\n\n\n preventFocus(focusTrap) {\n // Ensure there's only one listener per document\n if (this._listener) {\n focusTrap._document.removeEventListener('focus', this._listener, true);\n }\n\n this._listener = e => this._trapFocus(focusTrap, e);\n\n focusTrap._ngZone.runOutsideAngular(() => {\n focusTrap._document.addEventListener('focus', this._listener, true);\n });\n }\n /** Removes the event listener added in preventFocus. */\n\n\n allowFocus(focusTrap) {\n if (!this._listener) {\n return;\n }\n\n focusTrap._document.removeEventListener('focus', this._listener, true);\n\n this._listener = null;\n }\n /**\n * Refocuses the first element in the FocusTrap if the focus event target was outside\n * the FocusTrap.\n *\n * This is an event listener callback. The event listener is added in runOutsideAngular,\n * so all this code runs outside Angular as well.\n */\n\n\n _trapFocus(focusTrap, event) {\n const target = event.target;\n const focusTrapRoot = focusTrap._element; // Don't refocus if target was in an overlay, because the overlay might be associated\n // with an element inside the FocusTrap, ex. mat-select.\n\n if (target && !focusTrapRoot.contains(target) && !target.closest?.('div.cdk-overlay-pane')) {\n // Some legacy FocusTrap usages have logic that focuses some element on the page\n // just before FocusTrap is destroyed. For backwards compatibility, wait\n // to be sure FocusTrap is still enabled before refocusing.\n setTimeout(() => {\n // Check whether focus wasn't put back into the focus trap while the timeout was pending.\n if (focusTrap.enabled && !focusTrapRoot.contains(focusTrap._document.activeElement)) {\n focusTrap.focusFirstTabbableElement();\n }\n });\n }\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Injectable that ensures only the most recently enabled FocusTrap is active. */\n\n\nclass FocusTrapManager {\n constructor() {\n // A stack of the FocusTraps on the page. Only the FocusTrap at the\n // top of the stack is active.\n this._focusTrapStack = [];\n }\n /**\n * Disables the FocusTrap at the top of the stack, and then pushes\n * the new FocusTrap onto the stack.\n */\n\n\n register(focusTrap) {\n // Dedupe focusTraps that register multiple times.\n this._focusTrapStack = this._focusTrapStack.filter(ft => ft !== focusTrap);\n let stack = this._focusTrapStack;\n\n if (stack.length) {\n stack[stack.length - 1]._disable();\n }\n\n stack.push(focusTrap);\n\n focusTrap._enable();\n }\n /**\n * Removes the FocusTrap from the stack, and activates the\n * FocusTrap that is the new top of the stack.\n */\n\n\n deregister(focusTrap) {\n focusTrap._disable();\n\n const stack = this._focusTrapStack;\n const i = stack.indexOf(focusTrap);\n\n if (i !== -1) {\n stack.splice(i, 1);\n\n if (stack.length) {\n stack[stack.length - 1]._enable();\n }\n }\n }\n\n}\n\nFocusTrapManager.ɵfac = function FocusTrapManager_Factory(t) {\n return new (t || FocusTrapManager)();\n};\n\nFocusTrapManager.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: FocusTrapManager,\n factory: FocusTrapManager.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(FocusTrapManager, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Factory that allows easy instantiation of configurable focus traps. */\n\n\nclass ConfigurableFocusTrapFactory {\n constructor(_checker, _ngZone, _focusTrapManager, _document, _inertStrategy) {\n this._checker = _checker;\n this._ngZone = _ngZone;\n this._focusTrapManager = _focusTrapManager;\n this._document = _document; // TODO split up the strategies into different modules, similar to DateAdapter.\n\n this._inertStrategy = _inertStrategy || new EventListenerFocusTrapInertStrategy();\n }\n\n create(element, config = {\n defer: false\n }) {\n let configObject;\n\n if (typeof config === 'boolean') {\n configObject = {\n defer: config\n };\n } else {\n configObject = config;\n }\n\n return new ConfigurableFocusTrap(element, this._checker, this._ngZone, this._document, this._focusTrapManager, this._inertStrategy, configObject);\n }\n\n}\n\nConfigurableFocusTrapFactory.ɵfac = function ConfigurableFocusTrapFactory_Factory(t) {\n return new (t || ConfigurableFocusTrapFactory)(i0.ɵɵinject(InteractivityChecker), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(FocusTrapManager), i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(FOCUS_TRAP_INERT_STRATEGY, 8));\n};\n\nConfigurableFocusTrapFactory.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ConfigurableFocusTrapFactory,\n factory: ConfigurableFocusTrapFactory.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ConfigurableFocusTrapFactory, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: InteractivityChecker\n }, {\n type: i0.NgZone\n }, {\n type: FocusTrapManager\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [FOCUS_TRAP_INERT_STRATEGY]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Gets whether an event could be a faked `mousedown` event dispatched by a screen reader. */\n\n\nfunction isFakeMousedownFromScreenReader(event) {\n // Some screen readers will dispatch a fake `mousedown` event when pressing enter or space on\n // a clickable element. We can distinguish these events when both `offsetX` and `offsetY` are\n // zero. Note that there's an edge case where the user could click the 0x0 spot of the screen\n // themselves, but that is unlikely to contain interaction elements. Historically we used to\n // check `event.buttons === 0`, however that no longer works on recent versions of NVDA.\n return event.offsetX === 0 && event.offsetY === 0;\n}\n/** Gets whether an event could be a faked `touchstart` event dispatched by a screen reader. */\n\n\nfunction isFakeTouchstartFromScreenReader(event) {\n const touch = event.touches && event.touches[0] || event.changedTouches && event.changedTouches[0]; // A fake `touchstart` can be distinguished from a real one by looking at the `identifier`\n // which is typically >= 0 on a real device versus -1 from a screen reader. Just to be safe,\n // we can also look at `radiusX` and `radiusY`. This behavior was observed against a Windows 10\n // device with a touch screen running NVDA v2020.4 and Firefox 85 or Chrome 88.\n\n return !!touch && touch.identifier === -1 && (touch.radiusX == null || touch.radiusX === 1) && (touch.radiusY == null || touch.radiusY === 1);\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Injectable options for the InputModalityDetector. These are shallowly merged with the default\n * options.\n */\n\n\nconst INPUT_MODALITY_DETECTOR_OPTIONS = new InjectionToken('cdk-input-modality-detector-options');\n/**\n * Default options for the InputModalityDetector.\n *\n * Modifier keys are ignored by default (i.e. when pressed won't cause the service to detect\n * keyboard input modality) for two reasons:\n *\n * 1. Modifier keys are commonly used with mouse to perform actions such as 'right click' or 'open\n * in new tab', and are thus less representative of actual keyboard interaction.\n * 2. VoiceOver triggers some keyboard events when linearly navigating with Control + Option (but\n * confusingly not with Caps Lock). Thus, to have parity with other screen readers, we ignore\n * these keys so as to not update the input modality.\n *\n * Note that we do not by default ignore the right Meta key on Safari because it has the same key\n * code as the ContextMenu key on other browsers. When we switch to using event.key, we can\n * distinguish between the two.\n */\n\nconst INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS = {\n ignoreKeys: [ALT, CONTROL, MAC_META, META, SHIFT]\n};\n/**\n * The amount of time needed to pass after a touchstart event in order for a subsequent mousedown\n * event to be attributed as mouse and not touch.\n *\n * This is the value used by AngularJS Material. Through trial and error (on iPhone 6S) they found\n * that a value of around 650ms seems appropriate.\n */\n\nconst TOUCH_BUFFER_MS = 650;\n/**\n * Event listener options that enable capturing and also mark the listener as passive if the browser\n * supports it.\n */\n\nconst modalityEventListenerOptions = normalizePassiveListenerOptions({\n passive: true,\n capture: true\n});\n/**\n * Service that detects the user's input modality.\n *\n * This service does not update the input modality when a user navigates with a screen reader\n * (e.g. linear navigation with VoiceOver, object navigation / browse mode with NVDA, virtual PC\n * cursor mode with JAWS). This is in part due to technical limitations (i.e. keyboard events do not\n * fire as expected in these modes) but is also arguably the correct behavior. Navigating with a\n * screen reader is akin to visually scanning a page, and should not be interpreted as actual user\n * input interaction.\n *\n * When a user is not navigating but *interacting* with a screen reader, this service attempts to\n * update the input modality to keyboard, but in general this service's behavior is largely\n * undefined.\n */\n\nclass InputModalityDetector {\n constructor(_platform, ngZone, document, options) {\n this._platform = _platform;\n /**\n * The most recently detected input modality event target. Is null if no input modality has been\n * detected or if the associated event target is null for some unknown reason.\n */\n\n this._mostRecentTarget = null;\n /** The underlying BehaviorSubject that emits whenever an input modality is detected. */\n\n this._modality = new BehaviorSubject(null);\n /**\n * The timestamp of the last touch input modality. Used to determine whether mousedown events\n * should be attributed to mouse or touch.\n */\n\n this._lastTouchMs = 0;\n /**\n * Handles keydown events. Must be an arrow function in order to preserve the context when it gets\n * bound.\n */\n\n this._onKeydown = event => {\n // If this is one of the keys we should ignore, then ignore it and don't update the input\n // modality to keyboard.\n if (this._options?.ignoreKeys?.some(keyCode => keyCode === event.keyCode)) {\n return;\n }\n\n this._modality.next('keyboard');\n\n this._mostRecentTarget = _getEventTarget(event);\n };\n /**\n * Handles mousedown events. Must be an arrow function in order to preserve the context when it\n * gets bound.\n */\n\n\n this._onMousedown = event => {\n // Touches trigger both touch and mouse events, so we need to distinguish between mouse events\n // that were triggered via mouse vs touch. To do so, check if the mouse event occurs closely\n // after the previous touch event.\n if (Date.now() - this._lastTouchMs < TOUCH_BUFFER_MS) {\n return;\n } // Fake mousedown events are fired by some screen readers when controls are activated by the\n // screen reader. Attribute them to keyboard input modality.\n\n\n this._modality.next(isFakeMousedownFromScreenReader(event) ? 'keyboard' : 'mouse');\n\n this._mostRecentTarget = _getEventTarget(event);\n };\n /**\n * Handles touchstart events. Must be an arrow function in order to preserve the context when it\n * gets bound.\n */\n\n\n this._onTouchstart = event => {\n // Same scenario as mentioned in _onMousedown, but on touch screen devices, fake touchstart\n // events are fired. Again, attribute to keyboard input modality.\n if (isFakeTouchstartFromScreenReader(event)) {\n this._modality.next('keyboard');\n\n return;\n } // Store the timestamp of this touch event, as it's used to distinguish between mouse events\n // triggered via mouse vs touch.\n\n\n this._lastTouchMs = Date.now();\n\n this._modality.next('touch');\n\n this._mostRecentTarget = _getEventTarget(event);\n };\n\n this._options = { ...INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS,\n ...options\n }; // Skip the first emission as it's null.\n\n this.modalityDetected = this._modality.pipe(skip(1));\n this.modalityChanged = this.modalityDetected.pipe(distinctUntilChanged()); // If we're not in a browser, this service should do nothing, as there's no relevant input\n // modality to detect.\n\n if (_platform.isBrowser) {\n ngZone.runOutsideAngular(() => {\n document.addEventListener('keydown', this._onKeydown, modalityEventListenerOptions);\n document.addEventListener('mousedown', this._onMousedown, modalityEventListenerOptions);\n document.addEventListener('touchstart', this._onTouchstart, modalityEventListenerOptions);\n });\n }\n }\n /** The most recently detected input modality. */\n\n\n get mostRecentModality() {\n return this._modality.value;\n }\n\n ngOnDestroy() {\n this._modality.complete();\n\n if (this._platform.isBrowser) {\n document.removeEventListener('keydown', this._onKeydown, modalityEventListenerOptions);\n document.removeEventListener('mousedown', this._onMousedown, modalityEventListenerOptions);\n document.removeEventListener('touchstart', this._onTouchstart, modalityEventListenerOptions);\n }\n }\n\n}\n\nInputModalityDetector.ɵfac = function InputModalityDetector_Factory(t) {\n return new (t || InputModalityDetector)(i0.ɵɵinject(i1.Platform), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(INPUT_MODALITY_DETECTOR_OPTIONS, 8));\n};\n\nInputModalityDetector.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: InputModalityDetector,\n factory: InputModalityDetector.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(InputModalityDetector, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.Platform\n }, {\n type: i0.NgZone\n }, {\n type: Document,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [INPUT_MODALITY_DETECTOR_OPTIONS]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nconst LIVE_ANNOUNCER_ELEMENT_TOKEN = new InjectionToken('liveAnnouncerElement', {\n providedIn: 'root',\n factory: LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY\n});\n/** @docs-private */\n\nfunction LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY() {\n return null;\n}\n/** Injection token that can be used to configure the default options for the LiveAnnouncer. */\n\n\nconst LIVE_ANNOUNCER_DEFAULT_OPTIONS = new InjectionToken('LIVE_ANNOUNCER_DEFAULT_OPTIONS');\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nclass LiveAnnouncer {\n constructor(elementToken, _ngZone, _document, _defaultOptions) {\n this._ngZone = _ngZone;\n this._defaultOptions = _defaultOptions; // We inject the live element and document as `any` because the constructor signature cannot\n // reference browser globals (HTMLElement, Document) on non-browser environments, since having\n // a class decorator causes TypeScript to preserve the constructor signature types.\n\n this._document = _document;\n this._liveElement = elementToken || this._createLiveElement();\n }\n\n announce(message, ...args) {\n const defaultOptions = this._defaultOptions;\n let politeness;\n let duration;\n\n if (args.length === 1 && typeof args[0] === 'number') {\n duration = args[0];\n } else {\n [politeness, duration] = args;\n }\n\n this.clear();\n clearTimeout(this._previousTimeout);\n\n if (!politeness) {\n politeness = defaultOptions && defaultOptions.politeness ? defaultOptions.politeness : 'polite';\n }\n\n if (duration == null && defaultOptions) {\n duration = defaultOptions.duration;\n } // TODO: ensure changing the politeness works on all environments we support.\n\n\n this._liveElement.setAttribute('aria-live', politeness); // This 100ms timeout is necessary for some browser + screen-reader combinations:\n // - Both JAWS and NVDA over IE11 will not announce anything without a non-zero timeout.\n // - With Chrome and IE11 with NVDA or JAWS, a repeated (identical) message won't be read a\n // second time without clearing and then using a non-zero delay.\n // (using JAWS 17 at time of this writing).\n\n\n return this._ngZone.runOutsideAngular(() => {\n return new Promise(resolve => {\n clearTimeout(this._previousTimeout);\n this._previousTimeout = setTimeout(() => {\n this._liveElement.textContent = message;\n resolve();\n\n if (typeof duration === 'number') {\n this._previousTimeout = setTimeout(() => this.clear(), duration);\n }\n }, 100);\n });\n });\n }\n /**\n * Clears the current text from the announcer element. Can be used to prevent\n * screen readers from reading the text out again while the user is going\n * through the page landmarks.\n */\n\n\n clear() {\n if (this._liveElement) {\n this._liveElement.textContent = '';\n }\n }\n\n ngOnDestroy() {\n clearTimeout(this._previousTimeout);\n this._liveElement?.remove();\n this._liveElement = null;\n }\n\n _createLiveElement() {\n const elementClass = 'cdk-live-announcer-element';\n\n const previousElements = this._document.getElementsByClassName(elementClass);\n\n const liveEl = this._document.createElement('div'); // Remove any old containers. This can happen when coming in from a server-side-rendered page.\n\n\n for (let i = 0; i < previousElements.length; i++) {\n previousElements[i].remove();\n }\n\n liveEl.classList.add(elementClass);\n liveEl.classList.add('cdk-visually-hidden');\n liveEl.setAttribute('aria-atomic', 'true');\n liveEl.setAttribute('aria-live', 'polite');\n\n this._document.body.appendChild(liveEl);\n\n return liveEl;\n }\n\n}\n\nLiveAnnouncer.ɵfac = function LiveAnnouncer_Factory(t) {\n return new (t || LiveAnnouncer)(i0.ɵɵinject(LIVE_ANNOUNCER_ELEMENT_TOKEN, 8), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(LIVE_ANNOUNCER_DEFAULT_OPTIONS, 8));\n};\n\nLiveAnnouncer.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: LiveAnnouncer,\n factory: LiveAnnouncer.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(LiveAnnouncer, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [LIVE_ANNOUNCER_ELEMENT_TOKEN]\n }]\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [LIVE_ANNOUNCER_DEFAULT_OPTIONS]\n }]\n }];\n }, null);\n})();\n/**\n * A directive that works similarly to aria-live, but uses the LiveAnnouncer to ensure compatibility\n * with a wider range of browsers and screen readers.\n */\n\n\nclass CdkAriaLive {\n constructor(_elementRef, _liveAnnouncer, _contentObserver, _ngZone) {\n this._elementRef = _elementRef;\n this._liveAnnouncer = _liveAnnouncer;\n this._contentObserver = _contentObserver;\n this._ngZone = _ngZone;\n this._politeness = 'polite';\n }\n /** The aria-live politeness level to use when announcing messages. */\n\n\n get politeness() {\n return this._politeness;\n }\n\n set politeness(value) {\n this._politeness = value === 'off' || value === 'assertive' ? value : 'polite';\n\n if (this._politeness === 'off') {\n if (this._subscription) {\n this._subscription.unsubscribe();\n\n this._subscription = null;\n }\n } else if (!this._subscription) {\n this._subscription = this._ngZone.runOutsideAngular(() => {\n return this._contentObserver.observe(this._elementRef).subscribe(() => {\n // Note that we use textContent here, rather than innerText, in order to avoid a reflow.\n const elementText = this._elementRef.nativeElement.textContent; // The `MutationObserver` fires also for attribute\n // changes which we don't want to announce.\n\n if (elementText !== this._previousAnnouncedText) {\n this._liveAnnouncer.announce(elementText, this._politeness);\n\n this._previousAnnouncedText = elementText;\n }\n });\n });\n }\n }\n\n ngOnDestroy() {\n if (this._subscription) {\n this._subscription.unsubscribe();\n }\n }\n\n}\n\nCdkAriaLive.ɵfac = function CdkAriaLive_Factory(t) {\n return new (t || CdkAriaLive)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(LiveAnnouncer), i0.ɵɵdirectiveInject(i1$1.ContentObserver), i0.ɵɵdirectiveInject(i0.NgZone));\n};\n\nCdkAriaLive.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkAriaLive,\n selectors: [[\"\", \"cdkAriaLive\", \"\"]],\n inputs: {\n politeness: [\"cdkAriaLive\", \"politeness\"]\n },\n exportAs: [\"cdkAriaLive\"]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkAriaLive, [{\n type: Directive,\n args: [{\n selector: '[cdkAriaLive]',\n exportAs: 'cdkAriaLive'\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: LiveAnnouncer\n }, {\n type: i1$1.ContentObserver\n }, {\n type: i0.NgZone\n }];\n }, {\n politeness: [{\n type: Input,\n args: ['cdkAriaLive']\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** InjectionToken for FocusMonitorOptions. */\n\n\nconst FOCUS_MONITOR_DEFAULT_OPTIONS = new InjectionToken('cdk-focus-monitor-default-options');\n/**\n * Event listener options that enable capturing and also\n * mark the listener as passive if the browser supports it.\n */\n\nconst captureEventListenerOptions = normalizePassiveListenerOptions({\n passive: true,\n capture: true\n});\n/** Monitors mouse and keyboard events to determine the cause of focus events. */\n\nclass FocusMonitor {\n constructor(_ngZone, _platform, _inputModalityDetector,\n /** @breaking-change 11.0.0 make document required */\n document, options) {\n this._ngZone = _ngZone;\n this._platform = _platform;\n this._inputModalityDetector = _inputModalityDetector;\n /** The focus origin that the next focus event is a result of. */\n\n this._origin = null;\n /** Whether the window has just been focused. */\n\n this._windowFocused = false;\n /**\n * Whether the origin was determined via a touch interaction. Necessary as properly attributing\n * focus events to touch interactions requires special logic.\n */\n\n this._originFromTouchInteraction = false;\n /** Map of elements being monitored to their info. */\n\n this._elementInfo = new Map();\n /** The number of elements currently being monitored. */\n\n this._monitoredElementCount = 0;\n /**\n * Keeps track of the root nodes to which we've currently bound a focus/blur handler,\n * as well as the number of monitored elements that they contain. We have to treat focus/blur\n * handlers differently from the rest of the events, because the browser won't emit events\n * to the document when focus moves inside of a shadow root.\n */\n\n this._rootNodeFocusListenerCount = new Map();\n /**\n * Event listener for `focus` events on the window.\n * Needs to be an arrow function in order to preserve the context when it gets bound.\n */\n\n this._windowFocusListener = () => {\n // Make a note of when the window regains focus, so we can\n // restore the origin info for the focused element.\n this._windowFocused = true;\n this._windowFocusTimeoutId = setTimeout(() => this._windowFocused = false);\n };\n /** Subject for stopping our InputModalityDetector subscription. */\n\n\n this._stopInputModalityDetector = new Subject();\n /**\n * Event listener for `focus` and 'blur' events on the document.\n * Needs to be an arrow function in order to preserve the context when it gets bound.\n */\n\n this._rootNodeFocusAndBlurListener = event => {\n const target = _getEventTarget(event);\n\n const handler = event.type === 'focus' ? this._onFocus : this._onBlur; // We need to walk up the ancestor chain in order to support `checkChildren`.\n\n for (let element = target; element; element = element.parentElement) {\n handler.call(this, event, element);\n }\n };\n\n this._document = document;\n this._detectionMode = options?.detectionMode || 0\n /* IMMEDIATE */\n ;\n }\n\n monitor(element, checkChildren = false) {\n const nativeElement = coerceElement(element); // Do nothing if we're not on the browser platform or the passed in node isn't an element.\n\n if (!this._platform.isBrowser || nativeElement.nodeType !== 1) {\n return of(null);\n } // If the element is inside the shadow DOM, we need to bind our focus/blur listeners to\n // the shadow root, rather than the `document`, because the browser won't emit focus events\n // to the `document`, if focus is moving within the same shadow root.\n\n\n const rootNode = _getShadowRoot(nativeElement) || this._getDocument();\n\n const cachedInfo = this._elementInfo.get(nativeElement); // Check if we're already monitoring this element.\n\n\n if (cachedInfo) {\n if (checkChildren) {\n // TODO(COMP-318): this can be problematic, because it'll turn all non-checkChildren\n // observers into ones that behave as if `checkChildren` was turned on. We need a more\n // robust solution.\n cachedInfo.checkChildren = true;\n }\n\n return cachedInfo.subject;\n } // Create monitored element info.\n\n\n const info = {\n checkChildren: checkChildren,\n subject: new Subject(),\n rootNode\n };\n\n this._elementInfo.set(nativeElement, info);\n\n this._registerGlobalListeners(info);\n\n return info.subject;\n }\n\n stopMonitoring(element) {\n const nativeElement = coerceElement(element);\n\n const elementInfo = this._elementInfo.get(nativeElement);\n\n if (elementInfo) {\n elementInfo.subject.complete();\n\n this._setClasses(nativeElement);\n\n this._elementInfo.delete(nativeElement);\n\n this._removeGlobalListeners(elementInfo);\n }\n }\n\n focusVia(element, origin, options) {\n const nativeElement = coerceElement(element);\n\n const focusedElement = this._getDocument().activeElement; // If the element is focused already, calling `focus` again won't trigger the event listener\n // which means that the focus classes won't be updated. If that's the case, update the classes\n // directly without waiting for an event.\n\n\n if (nativeElement === focusedElement) {\n this._getClosestElementsInfo(nativeElement).forEach(([currentElement, info]) => this._originChanged(currentElement, origin, info));\n } else {\n this._setOrigin(origin); // `focus` isn't available on the server\n\n\n if (typeof nativeElement.focus === 'function') {\n nativeElement.focus(options);\n }\n }\n }\n\n ngOnDestroy() {\n this._elementInfo.forEach((_info, element) => this.stopMonitoring(element));\n }\n /** Access injected document if available or fallback to global document reference */\n\n\n _getDocument() {\n return this._document || document;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n\n\n _getWindow() {\n const doc = this._getDocument();\n\n return doc.defaultView || window;\n }\n\n _getFocusOrigin(focusEventTarget) {\n if (this._origin) {\n // If the origin was realized via a touch interaction, we need to perform additional checks\n // to determine whether the focus origin should be attributed to touch or program.\n if (this._originFromTouchInteraction) {\n return this._shouldBeAttributedToTouch(focusEventTarget) ? 'touch' : 'program';\n } else {\n return this._origin;\n }\n } // If the window has just regained focus, we can restore the most recent origin from before the\n // window blurred. Otherwise, we've reached the point where we can't identify the source of the\n // focus. This typically means one of two things happened:\n //\n // 1) The element was programmatically focused, or\n // 2) The element was focused via screen reader navigation (which generally doesn't fire\n // events).\n //\n // Because we can't distinguish between these two cases, we default to setting `program`.\n\n\n return this._windowFocused && this._lastFocusOrigin ? this._lastFocusOrigin : 'program';\n }\n /**\n * Returns whether the focus event should be attributed to touch. Recall that in IMMEDIATE mode, a\n * touch origin isn't immediately reset at the next tick (see _setOrigin). This means that when we\n * handle a focus event following a touch interaction, we need to determine whether (1) the focus\n * event was directly caused by the touch interaction or (2) the focus event was caused by a\n * subsequent programmatic focus call triggered by the touch interaction.\n * @param focusEventTarget The target of the focus event under examination.\n */\n\n\n _shouldBeAttributedToTouch(focusEventTarget) {\n // Please note that this check is not perfect. Consider the following edge case:\n //\n //
\n // \n //
\n //\n // Suppose there is a FocusMonitor in IMMEDIATE mode attached to #parent. When the user touches\n // #child, #parent is programmatically focused. This code will attribute the focus to touch\n // instead of program. This is a relatively minor edge-case that can be worked around by using\n // focusVia(parent, 'program') to focus #parent.\n return this._detectionMode === 1\n /* EVENTUAL */\n || !!focusEventTarget?.contains(this._inputModalityDetector._mostRecentTarget);\n }\n /**\n * Sets the focus classes on the element based on the given focus origin.\n * @param element The element to update the classes on.\n * @param origin The focus origin.\n */\n\n\n _setClasses(element, origin) {\n element.classList.toggle('cdk-focused', !!origin);\n element.classList.toggle('cdk-touch-focused', origin === 'touch');\n element.classList.toggle('cdk-keyboard-focused', origin === 'keyboard');\n element.classList.toggle('cdk-mouse-focused', origin === 'mouse');\n element.classList.toggle('cdk-program-focused', origin === 'program');\n }\n /**\n * Updates the focus origin. If we're using immediate detection mode, we schedule an async\n * function to clear the origin at the end of a timeout. The duration of the timeout depends on\n * the origin being set.\n * @param origin The origin to set.\n * @param isFromInteraction Whether we are setting the origin from an interaction event.\n */\n\n\n _setOrigin(origin, isFromInteraction = false) {\n this._ngZone.runOutsideAngular(() => {\n this._origin = origin;\n this._originFromTouchInteraction = origin === 'touch' && isFromInteraction; // If we're in IMMEDIATE mode, reset the origin at the next tick (or in `TOUCH_BUFFER_MS` ms\n // for a touch event). We reset the origin at the next tick because Firefox focuses one tick\n // after the interaction event. We wait `TOUCH_BUFFER_MS` ms before resetting the origin for\n // a touch event because when a touch event is fired, the associated focus event isn't yet in\n // the event queue. Before doing so, clear any pending timeouts.\n\n if (this._detectionMode === 0\n /* IMMEDIATE */\n ) {\n clearTimeout(this._originTimeoutId);\n const ms = this._originFromTouchInteraction ? TOUCH_BUFFER_MS : 1;\n this._originTimeoutId = setTimeout(() => this._origin = null, ms);\n }\n });\n }\n /**\n * Handles focus events on a registered element.\n * @param event The focus event.\n * @param element The monitored element.\n */\n\n\n _onFocus(event, element) {\n // NOTE(mmalerba): We currently set the classes based on the focus origin of the most recent\n // focus event affecting the monitored element. If we want to use the origin of the first event\n // instead we should check for the cdk-focused class here and return if the element already has\n // it. (This only matters for elements that have includesChildren = true).\n // If we are not counting child-element-focus as focused, make sure that the event target is the\n // monitored element itself.\n const elementInfo = this._elementInfo.get(element);\n\n const focusEventTarget = _getEventTarget(event);\n\n if (!elementInfo || !elementInfo.checkChildren && element !== focusEventTarget) {\n return;\n }\n\n this._originChanged(element, this._getFocusOrigin(focusEventTarget), elementInfo);\n }\n /**\n * Handles blur events on a registered element.\n * @param event The blur event.\n * @param element The monitored element.\n */\n\n\n _onBlur(event, element) {\n // If we are counting child-element-focus as focused, make sure that we aren't just blurring in\n // order to focus another child of the monitored element.\n const elementInfo = this._elementInfo.get(element);\n\n if (!elementInfo || elementInfo.checkChildren && event.relatedTarget instanceof Node && element.contains(event.relatedTarget)) {\n return;\n }\n\n this._setClasses(element);\n\n this._emitOrigin(elementInfo.subject, null);\n }\n\n _emitOrigin(subject, origin) {\n this._ngZone.run(() => subject.next(origin));\n }\n\n _registerGlobalListeners(elementInfo) {\n if (!this._platform.isBrowser) {\n return;\n }\n\n const rootNode = elementInfo.rootNode;\n const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode) || 0;\n\n if (!rootNodeFocusListeners) {\n this._ngZone.runOutsideAngular(() => {\n rootNode.addEventListener('focus', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n rootNode.addEventListener('blur', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n });\n }\n\n this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners + 1); // Register global listeners when first element is monitored.\n\n\n if (++this._monitoredElementCount === 1) {\n // Note: we listen to events in the capture phase so we\n // can detect them even if the user stops propagation.\n this._ngZone.runOutsideAngular(() => {\n const window = this._getWindow();\n\n window.addEventListener('focus', this._windowFocusListener);\n }); // The InputModalityDetector is also just a collection of global listeners.\n\n\n this._inputModalityDetector.modalityDetected.pipe(takeUntil(this._stopInputModalityDetector)).subscribe(modality => {\n this._setOrigin(modality, true\n /* isFromInteraction */\n );\n });\n }\n }\n\n _removeGlobalListeners(elementInfo) {\n const rootNode = elementInfo.rootNode;\n\n if (this._rootNodeFocusListenerCount.has(rootNode)) {\n const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode);\n\n if (rootNodeFocusListeners > 1) {\n this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners - 1);\n } else {\n rootNode.removeEventListener('focus', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n rootNode.removeEventListener('blur', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n\n this._rootNodeFocusListenerCount.delete(rootNode);\n }\n } // Unregister global listeners when last element is unmonitored.\n\n\n if (! --this._monitoredElementCount) {\n const window = this._getWindow();\n\n window.removeEventListener('focus', this._windowFocusListener); // Equivalently, stop our InputModalityDetector subscription.\n\n this._stopInputModalityDetector.next(); // Clear timeouts for all potentially pending timeouts to prevent the leaks.\n\n\n clearTimeout(this._windowFocusTimeoutId);\n clearTimeout(this._originTimeoutId);\n }\n }\n /** Updates all the state on an element once its focus origin has changed. */\n\n\n _originChanged(element, origin, elementInfo) {\n this._setClasses(element, origin);\n\n this._emitOrigin(elementInfo.subject, origin);\n\n this._lastFocusOrigin = origin;\n }\n /**\n * Collects the `MonitoredElementInfo` of a particular element and\n * all of its ancestors that have enabled `checkChildren`.\n * @param element Element from which to start the search.\n */\n\n\n _getClosestElementsInfo(element) {\n const results = [];\n\n this._elementInfo.forEach((info, currentElement) => {\n if (currentElement === element || info.checkChildren && currentElement.contains(element)) {\n results.push([currentElement, info]);\n }\n });\n\n return results;\n }\n\n}\n\nFocusMonitor.ɵfac = function FocusMonitor_Factory(t) {\n return new (t || FocusMonitor)(i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(i1.Platform), i0.ɵɵinject(InputModalityDetector), i0.ɵɵinject(DOCUMENT, 8), i0.ɵɵinject(FOCUS_MONITOR_DEFAULT_OPTIONS, 8));\n};\n\nFocusMonitor.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: FocusMonitor,\n factory: FocusMonitor.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(FocusMonitor, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i0.NgZone\n }, {\n type: i1.Platform\n }, {\n type: InputModalityDetector\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [FOCUS_MONITOR_DEFAULT_OPTIONS]\n }]\n }];\n }, null);\n})();\n/**\n * Directive that determines how a particular element was focused (via keyboard, mouse, touch, or\n * programmatically) and adds corresponding classes to the element.\n *\n * There are two variants of this directive:\n * 1) cdkMonitorElementFocus: does not consider an element to be focused if one of its children is\n * focused.\n * 2) cdkMonitorSubtreeFocus: considers an element focused if it or any of its children are focused.\n */\n\n\nclass CdkMonitorFocus {\n constructor(_elementRef, _focusMonitor) {\n this._elementRef = _elementRef;\n this._focusMonitor = _focusMonitor;\n this.cdkFocusChange = new EventEmitter();\n }\n\n ngAfterViewInit() {\n const element = this._elementRef.nativeElement;\n this._monitorSubscription = this._focusMonitor.monitor(element, element.nodeType === 1 && element.hasAttribute('cdkMonitorSubtreeFocus')).subscribe(origin => this.cdkFocusChange.emit(origin));\n }\n\n ngOnDestroy() {\n this._focusMonitor.stopMonitoring(this._elementRef);\n\n if (this._monitorSubscription) {\n this._monitorSubscription.unsubscribe();\n }\n }\n\n}\n\nCdkMonitorFocus.ɵfac = function CdkMonitorFocus_Factory(t) {\n return new (t || CdkMonitorFocus)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(FocusMonitor));\n};\n\nCdkMonitorFocus.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkMonitorFocus,\n selectors: [[\"\", \"cdkMonitorElementFocus\", \"\"], [\"\", \"cdkMonitorSubtreeFocus\", \"\"]],\n outputs: {\n cdkFocusChange: \"cdkFocusChange\"\n }\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkMonitorFocus, [{\n type: Directive,\n args: [{\n selector: '[cdkMonitorElementFocus], [cdkMonitorSubtreeFocus]'\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: FocusMonitor\n }];\n }, {\n cdkFocusChange: [{\n type: Output\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** CSS class applied to the document body when in black-on-white high-contrast mode. */\n\n\nconst BLACK_ON_WHITE_CSS_CLASS = 'cdk-high-contrast-black-on-white';\n/** CSS class applied to the document body when in white-on-black high-contrast mode. */\n\nconst WHITE_ON_BLACK_CSS_CLASS = 'cdk-high-contrast-white-on-black';\n/** CSS class applied to the document body when in high-contrast mode. */\n\nconst HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS = 'cdk-high-contrast-active';\n/**\n * Service to determine whether the browser is currently in a high-contrast-mode environment.\n *\n * Microsoft Windows supports an accessibility feature called \"High Contrast Mode\". This mode\n * changes the appearance of all applications, including web applications, to dramatically increase\n * contrast.\n *\n * IE, Edge, and Firefox currently support this mode. Chrome does not support Windows High Contrast\n * Mode. This service does not detect high-contrast mode as added by the Chrome \"High Contrast\"\n * browser extension.\n */\n\nclass HighContrastModeDetector {\n constructor(_platform, document) {\n this._platform = _platform;\n this._document = document;\n }\n /** Gets the current high-contrast-mode for the page. */\n\n\n getHighContrastMode() {\n if (!this._platform.isBrowser) {\n return 0\n /* NONE */\n ;\n } // Create a test element with an arbitrary background-color that is neither black nor\n // white; high-contrast mode will coerce the color to either black or white. Also ensure that\n // appending the test element to the DOM does not affect layout by absolutely positioning it\n\n\n const testElement = this._document.createElement('div');\n\n testElement.style.backgroundColor = 'rgb(1,2,3)';\n testElement.style.position = 'absolute';\n\n this._document.body.appendChild(testElement); // Get the computed style for the background color, collapsing spaces to normalize between\n // browsers. Once we get this color, we no longer need the test element. Access the `window`\n // via the document so we can fake it in tests. Note that we have extra null checks, because\n // this logic will likely run during app bootstrap and throwing can break the entire app.\n\n\n const documentWindow = this._document.defaultView || window;\n const computedStyle = documentWindow && documentWindow.getComputedStyle ? documentWindow.getComputedStyle(testElement) : null;\n const computedColor = (computedStyle && computedStyle.backgroundColor || '').replace(/ /g, '');\n testElement.remove();\n\n switch (computedColor) {\n case 'rgb(0,0,0)':\n return 2\n /* WHITE_ON_BLACK */\n ;\n\n case 'rgb(255,255,255)':\n return 1\n /* BLACK_ON_WHITE */\n ;\n }\n\n return 0\n /* NONE */\n ;\n }\n /** Applies CSS classes indicating high-contrast mode to document body (browser-only). */\n\n\n _applyBodyHighContrastModeCssClasses() {\n if (!this._hasCheckedHighContrastMode && this._platform.isBrowser && this._document.body) {\n const bodyClasses = this._document.body.classList; // IE11 doesn't support `classList` operations with multiple arguments\n\n bodyClasses.remove(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n bodyClasses.remove(BLACK_ON_WHITE_CSS_CLASS);\n bodyClasses.remove(WHITE_ON_BLACK_CSS_CLASS);\n this._hasCheckedHighContrastMode = true;\n const mode = this.getHighContrastMode();\n\n if (mode === 1\n /* BLACK_ON_WHITE */\n ) {\n bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n bodyClasses.add(BLACK_ON_WHITE_CSS_CLASS);\n } else if (mode === 2\n /* WHITE_ON_BLACK */\n ) {\n bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n bodyClasses.add(WHITE_ON_BLACK_CSS_CLASS);\n }\n }\n }\n\n}\n\nHighContrastModeDetector.ɵfac = function HighContrastModeDetector_Factory(t) {\n return new (t || HighContrastModeDetector)(i0.ɵɵinject(i1.Platform), i0.ɵɵinject(DOCUMENT));\n};\n\nHighContrastModeDetector.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: HighContrastModeDetector,\n factory: HighContrastModeDetector.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(HighContrastModeDetector, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.Platform\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nclass A11yModule {\n constructor(highContrastModeDetector) {\n highContrastModeDetector._applyBodyHighContrastModeCssClasses();\n }\n\n}\n\nA11yModule.ɵfac = function A11yModule_Factory(t) {\n return new (t || A11yModule)(i0.ɵɵinject(HighContrastModeDetector));\n};\n\nA11yModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: A11yModule\n});\nA11yModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n imports: [[PlatformModule, ObserversModule]]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(A11yModule, [{\n type: NgModule,\n args: [{\n imports: [PlatformModule, ObserversModule],\n declarations: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus],\n exports: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus]\n }]\n }], function () {\n return [{\n type: HighContrastModeDetector\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { A11yModule, ActiveDescendantKeyManager, AriaDescriber, CDK_DESCRIBEDBY_HOST_ATTRIBUTE, CDK_DESCRIBEDBY_ID_PREFIX, CdkAriaLive, CdkMonitorFocus, CdkTrapFocus, ConfigurableFocusTrap, ConfigurableFocusTrapFactory, EventListenerFocusTrapInertStrategy, FOCUS_MONITOR_DEFAULT_OPTIONS, FOCUS_TRAP_INERT_STRATEGY, FocusKeyManager, FocusMonitor, FocusTrap, FocusTrapFactory, HighContrastModeDetector, INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS, INPUT_MODALITY_DETECTOR_OPTIONS, InputModalityDetector, InteractivityChecker, IsFocusableConfig, LIVE_ANNOUNCER_DEFAULT_OPTIONS, LIVE_ANNOUNCER_ELEMENT_TOKEN, LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY, ListKeyManager, LiveAnnouncer, MESSAGES_CONTAINER_ID, isFakeMousedownFromScreenReader, isFakeTouchstartFromScreenReader 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{ DOCUMENT } from '@angular/common';\nimport * as i0 from '@angular/core';\nimport { Injectable, Inject, QueryList, Directive, Input, InjectionToken, Optional, EventEmitter, Output, NgModule } from '@angular/core';\nimport { Subject, Subscription, BehaviorSubject, of } from 'rxjs';\nimport { hasModifierKey, A, Z, ZERO, NINE, END, HOME, LEFT_ARROW, RIGHT_ARROW, UP_ARROW, DOWN_ARROW, TAB, ALT, CONTROL, MAC_META, META, SHIFT } from '@angular/cdk/keycodes';\nimport { tap, debounceTime, filter, map, take, skip, distinctUntilChanged, takeUntil } from 'rxjs/operators';\nimport { coerceBooleanProperty, coerceElement } from '@angular/cdk/coercion';\nimport * as i1 from '@angular/cdk/platform';\nimport { _getFocusedElementPierceShadowDom, normalizePassiveListenerOptions, _getEventTarget, _getShadowRoot, PlatformModule } from '@angular/cdk/platform';\nimport * as i1$1 from '@angular/cdk/observers';\nimport { ObserversModule } from '@angular/cdk/observers';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** IDs are delimited by an empty space, as per the spec. */\nconst ID_DELIMITER = ' ';\n/**\n * Adds the given ID to the specified ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n */\nfunction addAriaReferencedId(el, attr, id) {\n const ids = getAriaReferenceIds(el, attr);\n if (ids.some(existingId => existingId.trim() == id.trim())) {\n return;\n }\n ids.push(id.trim());\n el.setAttribute(attr, ids.join(ID_DELIMITER));\n}\n/**\n * Removes the given ID from the specified ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n */\nfunction removeAriaReferencedId(el, attr, id) {\n const ids = getAriaReferenceIds(el, attr);\n const filteredIds = ids.filter(val => val != id.trim());\n if (filteredIds.length) {\n el.setAttribute(attr, filteredIds.join(ID_DELIMITER));\n }\n else {\n el.removeAttribute(attr);\n }\n}\n/**\n * Gets the list of IDs referenced by the given ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n */\nfunction getAriaReferenceIds(el, attr) {\n // Get string array of all individual ids (whitespace delimited) in the attribute value\n return (el.getAttribute(attr) || '').match(/\\S+/g) || [];\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** ID used for the body container where all messages are appended. */\nconst MESSAGES_CONTAINER_ID = 'cdk-describedby-message-container';\n/** ID prefix used for each created message element. */\nconst CDK_DESCRIBEDBY_ID_PREFIX = 'cdk-describedby-message';\n/** Attribute given to each host element that is described by a message element. */\nconst CDK_DESCRIBEDBY_HOST_ATTRIBUTE = 'cdk-describedby-host';\n/** Global incremental identifier for each registered message element. */\nlet nextId = 0;\n/** Global map of all registered message elements that have been placed into the document. */\nconst messageRegistry = new Map();\n/** Container for all registered messages. */\nlet messagesContainer = null;\n/**\n * Utility that creates visually hidden elements with a message content. Useful for elements that\n * want to use aria-describedby to further describe themselves without adding additional visual\n * content.\n */\nclass AriaDescriber {\n constructor(_document) {\n this._document = _document;\n }\n describe(hostElement, message, role) {\n if (!this._canBeDescribed(hostElement, message)) {\n return;\n }\n const key = getKey(message, role);\n if (typeof message !== 'string') {\n // We need to ensure that the element has an ID.\n setMessageId(message);\n messageRegistry.set(key, { messageElement: message, referenceCount: 0 });\n }\n else if (!messageRegistry.has(key)) {\n this._createMessageElement(message, role);\n }\n if (!this._isElementDescribedByMessage(hostElement, key)) {\n this._addMessageReference(hostElement, key);\n }\n }\n removeDescription(hostElement, message, role) {\n if (!message || !this._isElementNode(hostElement)) {\n return;\n }\n const key = getKey(message, role);\n if (this._isElementDescribedByMessage(hostElement, key)) {\n this._removeMessageReference(hostElement, key);\n }\n // If the message is a string, it means that it's one that we created for the\n // consumer so we can remove it safely, otherwise we should leave it in place.\n if (typeof message === 'string') {\n const registeredMessage = messageRegistry.get(key);\n if (registeredMessage && registeredMessage.referenceCount === 0) {\n this._deleteMessageElement(key);\n }\n }\n if (messagesContainer && messagesContainer.childNodes.length === 0) {\n this._deleteMessagesContainer();\n }\n }\n /** Unregisters all created message elements and removes the message container. */\n ngOnDestroy() {\n const describedElements = this._document.querySelectorAll(`[${CDK_DESCRIBEDBY_HOST_ATTRIBUTE}]`);\n for (let i = 0; i < describedElements.length; i++) {\n this._removeCdkDescribedByReferenceIds(describedElements[i]);\n describedElements[i].removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);\n }\n if (messagesContainer) {\n this._deleteMessagesContainer();\n }\n messageRegistry.clear();\n }\n /**\n * Creates a new element in the visually hidden message container element with the message\n * as its content and adds it to the message registry.\n */\n _createMessageElement(message, role) {\n const messageElement = this._document.createElement('div');\n setMessageId(messageElement);\n messageElement.textContent = message;\n if (role) {\n messageElement.setAttribute('role', role);\n }\n this._createMessagesContainer();\n messagesContainer.appendChild(messageElement);\n messageRegistry.set(getKey(message, role), { messageElement, referenceCount: 0 });\n }\n /** Deletes the message element from the global messages container. */\n _deleteMessageElement(key) {\n const registeredMessage = messageRegistry.get(key);\n registeredMessage?.messageElement?.remove();\n messageRegistry.delete(key);\n }\n /** Creates the global container for all aria-describedby messages. */\n _createMessagesContainer() {\n if (!messagesContainer) {\n const preExistingContainer = this._document.getElementById(MESSAGES_CONTAINER_ID);\n // When going from the server to the client, we may end up in a situation where there's\n // already a container on the page, but we don't have a reference to it. Clear the\n // old container so we don't get duplicates. Doing this, instead of emptying the previous\n // container, should be slightly faster.\n preExistingContainer?.remove();\n messagesContainer = this._document.createElement('div');\n messagesContainer.id = MESSAGES_CONTAINER_ID;\n // We add `visibility: hidden` in order to prevent text in this container from\n // being searchable by the browser's Ctrl + F functionality.\n // Screen-readers will still read the description for elements with aria-describedby even\n // when the description element is not visible.\n messagesContainer.style.visibility = 'hidden';\n // Even though we use `visibility: hidden`, we still apply `cdk-visually-hidden` so that\n // the description element doesn't impact page layout.\n messagesContainer.classList.add('cdk-visually-hidden');\n this._document.body.appendChild(messagesContainer);\n }\n }\n /** Deletes the global messages container. */\n _deleteMessagesContainer() {\n if (messagesContainer) {\n messagesContainer.remove();\n messagesContainer = null;\n }\n }\n /** Removes all cdk-describedby messages that are hosted through the element. */\n _removeCdkDescribedByReferenceIds(element) {\n // Remove all aria-describedby reference IDs that are prefixed by CDK_DESCRIBEDBY_ID_PREFIX\n const originalReferenceIds = getAriaReferenceIds(element, 'aria-describedby').filter(id => id.indexOf(CDK_DESCRIBEDBY_ID_PREFIX) != 0);\n element.setAttribute('aria-describedby', originalReferenceIds.join(' '));\n }\n /**\n * Adds a message reference to the element using aria-describedby and increments the registered\n * message's reference count.\n */\n _addMessageReference(element, key) {\n const registeredMessage = messageRegistry.get(key);\n // Add the aria-describedby reference and set the\n // describedby_host attribute to mark the element.\n addAriaReferencedId(element, 'aria-describedby', registeredMessage.messageElement.id);\n element.setAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE, '');\n registeredMessage.referenceCount++;\n }\n /**\n * Removes a message reference from the element using aria-describedby\n * and decrements the registered message's reference count.\n */\n _removeMessageReference(element, key) {\n const registeredMessage = messageRegistry.get(key);\n registeredMessage.referenceCount--;\n removeAriaReferencedId(element, 'aria-describedby', registeredMessage.messageElement.id);\n element.removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);\n }\n /** Returns true if the element has been described by the provided message ID. */\n _isElementDescribedByMessage(element, key) {\n const referenceIds = getAriaReferenceIds(element, 'aria-describedby');\n const registeredMessage = messageRegistry.get(key);\n const messageId = registeredMessage && registeredMessage.messageElement.id;\n return !!messageId && referenceIds.indexOf(messageId) != -1;\n }\n /** Determines whether a message can be described on a particular element. */\n _canBeDescribed(element, message) {\n if (!this._isElementNode(element)) {\n return false;\n }\n if (message && typeof message === 'object') {\n // We'd have to make some assumptions about the description element's text, if the consumer\n // passed in an element. Assume that if an element is passed in, the consumer has verified\n // that it can be used as a description.\n return true;\n }\n const trimmedMessage = message == null ? '' : `${message}`.trim();\n const ariaLabel = element.getAttribute('aria-label');\n // We shouldn't set descriptions if they're exactly the same as the `aria-label` of the\n // element, because screen readers will end up reading out the same text twice in a row.\n return trimmedMessage ? !ariaLabel || ariaLabel.trim() !== trimmedMessage : false;\n }\n /** Checks whether a node is an Element node. */\n _isElementNode(element) {\n return element.nodeType === this._document.ELEMENT_NODE;\n }\n}\nAriaDescriber.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: AriaDescriber, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nAriaDescriber.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: AriaDescriber, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: AriaDescriber, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n/** Gets a key that can be used to look messages up in the registry. */\nfunction getKey(message, role) {\n return typeof message === 'string' ? `${role || ''}/${message}` : message;\n}\n/** Assigns a unique ID to an element, if it doesn't have one already. */\nfunction setMessageId(element) {\n if (!element.id) {\n element.id = `${CDK_DESCRIBEDBY_ID_PREFIX}-${nextId++}`;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This class manages keyboard events for selectable lists. If you pass it a query list\n * of items, it will set the active item correctly when arrow events occur.\n */\nclass ListKeyManager {\n constructor(_items) {\n this._items = _items;\n this._activeItemIndex = -1;\n this._activeItem = null;\n this._wrap = false;\n this._letterKeyStream = new Subject();\n this._typeaheadSubscription = Subscription.EMPTY;\n this._vertical = true;\n this._allowedModifierKeys = [];\n this._homeAndEnd = false;\n /**\n * Predicate function that can be used to check whether an item should be skipped\n * by the key manager. By default, disabled items are skipped.\n */\n this._skipPredicateFn = (item) => item.disabled;\n // Buffer for the letters that the user has pressed when the typeahead option is turned on.\n this._pressedLetters = [];\n /**\n * Stream that emits any time the TAB key is pressed, so components can react\n * when focus is shifted off of the list.\n */\n this.tabOut = new Subject();\n /** Stream that emits whenever the active item of the list manager changes. */\n this.change = new Subject();\n // We allow for the items to be an array because, in some cases, the consumer may\n // not have access to a QueryList of the items they want to manage (e.g. when the\n // items aren't being collected via `ViewChildren` or `ContentChildren`).\n if (_items instanceof QueryList) {\n _items.changes.subscribe((newItems) => {\n if (this._activeItem) {\n const itemArray = newItems.toArray();\n const newIndex = itemArray.indexOf(this._activeItem);\n if (newIndex > -1 && newIndex !== this._activeItemIndex) {\n this._activeItemIndex = newIndex;\n }\n }\n });\n }\n }\n /**\n * Sets the predicate function that determines which items should be skipped by the\n * list key manager.\n * @param predicate Function that determines whether the given item should be skipped.\n */\n skipPredicate(predicate) {\n this._skipPredicateFn = predicate;\n return this;\n }\n /**\n * Configures wrapping mode, which determines whether the active item will wrap to\n * the other end of list when there are no more items in the given direction.\n * @param shouldWrap Whether the list should wrap when reaching the end.\n */\n withWrap(shouldWrap = true) {\n this._wrap = shouldWrap;\n return this;\n }\n /**\n * Configures whether the key manager should be able to move the selection vertically.\n * @param enabled Whether vertical selection should be enabled.\n */\n withVerticalOrientation(enabled = true) {\n this._vertical = enabled;\n return this;\n }\n /**\n * Configures the key manager to move the selection horizontally.\n * Passing in `null` will disable horizontal movement.\n * @param direction Direction in which the selection can be moved.\n */\n withHorizontalOrientation(direction) {\n this._horizontal = direction;\n return this;\n }\n /**\n * Modifier keys which are allowed to be held down and whose default actions will be prevented\n * as the user is pressing the arrow keys. Defaults to not allowing any modifier keys.\n */\n withAllowedModifierKeys(keys) {\n this._allowedModifierKeys = keys;\n return this;\n }\n /**\n * Turns on typeahead mode which allows users to set the active item by typing.\n * @param debounceInterval Time to wait after the last keystroke before setting the active item.\n */\n withTypeAhead(debounceInterval = 200) {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n this._items.length &&\n this._items.some(item => typeof item.getLabel !== 'function')) {\n throw Error('ListKeyManager items in typeahead mode must implement the `getLabel` method.');\n }\n this._typeaheadSubscription.unsubscribe();\n // Debounce the presses of non-navigational keys, collect the ones that correspond to letters\n // and convert those letters back into a string. Afterwards find the first item that starts\n // with that string and select it.\n this._typeaheadSubscription = this._letterKeyStream\n .pipe(tap(letter => this._pressedLetters.push(letter)), debounceTime(debounceInterval), filter(() => this._pressedLetters.length > 0), map(() => this._pressedLetters.join('')))\n .subscribe(inputString => {\n const items = this._getItemsArray();\n // Start at 1 because we want to start searching at the item immediately\n // following the current active item.\n for (let i = 1; i < items.length + 1; i++) {\n const index = (this._activeItemIndex + i) % items.length;\n const item = items[index];\n if (!this._skipPredicateFn(item) &&\n item.getLabel().toUpperCase().trim().indexOf(inputString) === 0) {\n this.setActiveItem(index);\n break;\n }\n }\n this._pressedLetters = [];\n });\n return this;\n }\n /**\n * Configures the key manager to activate the first and last items\n * respectively when the Home or End key is pressed.\n * @param enabled Whether pressing the Home or End key activates the first/last item.\n */\n withHomeAndEnd(enabled = true) {\n this._homeAndEnd = enabled;\n return this;\n }\n setActiveItem(item) {\n const previousActiveItem = this._activeItem;\n this.updateActiveItem(item);\n if (this._activeItem !== previousActiveItem) {\n this.change.next(this._activeItemIndex);\n }\n }\n /**\n * Sets the active item depending on the key event passed in.\n * @param event Keyboard event to be used for determining which element should be active.\n */\n onKeydown(event) {\n const keyCode = event.keyCode;\n const modifiers = ['altKey', 'ctrlKey', 'metaKey', 'shiftKey'];\n const isModifierAllowed = modifiers.every(modifier => {\n return !event[modifier] || this._allowedModifierKeys.indexOf(modifier) > -1;\n });\n switch (keyCode) {\n case TAB:\n this.tabOut.next();\n return;\n case DOWN_ARROW:\n if (this._vertical && isModifierAllowed) {\n this.setNextItemActive();\n break;\n }\n else {\n return;\n }\n case UP_ARROW:\n if (this._vertical && isModifierAllowed) {\n this.setPreviousItemActive();\n break;\n }\n else {\n return;\n }\n case RIGHT_ARROW:\n if (this._horizontal && isModifierAllowed) {\n this._horizontal === 'rtl' ? this.setPreviousItemActive() : this.setNextItemActive();\n break;\n }\n else {\n return;\n }\n case LEFT_ARROW:\n if (this._horizontal && isModifierAllowed) {\n this._horizontal === 'rtl' ? this.setNextItemActive() : this.setPreviousItemActive();\n break;\n }\n else {\n return;\n }\n case HOME:\n if (this._homeAndEnd && isModifierAllowed) {\n this.setFirstItemActive();\n break;\n }\n else {\n return;\n }\n case END:\n if (this._homeAndEnd && isModifierAllowed) {\n this.setLastItemActive();\n break;\n }\n else {\n return;\n }\n default:\n if (isModifierAllowed || hasModifierKey(event, 'shiftKey')) {\n // Attempt to use the `event.key` which also maps it to the user's keyboard language,\n // otherwise fall back to resolving alphanumeric characters via the keyCode.\n if (event.key && event.key.length === 1) {\n this._letterKeyStream.next(event.key.toLocaleUpperCase());\n }\n else if ((keyCode >= A && keyCode <= Z) || (keyCode >= ZERO && keyCode <= NINE)) {\n this._letterKeyStream.next(String.fromCharCode(keyCode));\n }\n }\n // Note that we return here, in order to avoid preventing\n // the default action of non-navigational keys.\n return;\n }\n this._pressedLetters = [];\n event.preventDefault();\n }\n /** Index of the currently active item. */\n get activeItemIndex() {\n return this._activeItemIndex;\n }\n /** The active item. */\n get activeItem() {\n return this._activeItem;\n }\n /** Gets whether the user is currently typing into the manager using the typeahead feature. */\n isTyping() {\n return this._pressedLetters.length > 0;\n }\n /** Sets the active item to the first enabled item in the list. */\n setFirstItemActive() {\n this._setActiveItemByIndex(0, 1);\n }\n /** Sets the active item to the last enabled item in the list. */\n setLastItemActive() {\n this._setActiveItemByIndex(this._items.length - 1, -1);\n }\n /** Sets the active item to the next enabled item in the list. */\n setNextItemActive() {\n this._activeItemIndex < 0 ? this.setFirstItemActive() : this._setActiveItemByDelta(1);\n }\n /** Sets the active item to a previous enabled item in the list. */\n setPreviousItemActive() {\n this._activeItemIndex < 0 && this._wrap\n ? this.setLastItemActive()\n : this._setActiveItemByDelta(-1);\n }\n updateActiveItem(item) {\n const itemArray = this._getItemsArray();\n const index = typeof item === 'number' ? item : itemArray.indexOf(item);\n const activeItem = itemArray[index];\n // Explicitly check for `null` and `undefined` because other falsy values are valid.\n this._activeItem = activeItem == null ? null : activeItem;\n this._activeItemIndex = index;\n }\n /**\n * This method sets the active item, given a list of items and the delta between the\n * currently active item and the new active item. It will calculate differently\n * depending on whether wrap mode is turned on.\n */\n _setActiveItemByDelta(delta) {\n this._wrap ? this._setActiveInWrapMode(delta) : this._setActiveInDefaultMode(delta);\n }\n /**\n * Sets the active item properly given \"wrap\" mode. In other words, it will continue to move\n * down the list until it finds an item that is not disabled, and it will wrap if it\n * encounters either end of the list.\n */\n _setActiveInWrapMode(delta) {\n const items = this._getItemsArray();\n for (let i = 1; i <= items.length; i++) {\n const index = (this._activeItemIndex + delta * i + items.length) % items.length;\n const item = items[index];\n if (!this._skipPredicateFn(item)) {\n this.setActiveItem(index);\n return;\n }\n }\n }\n /**\n * Sets the active item properly given the default mode. In other words, it will\n * continue to move down the list until it finds an item that is not disabled. If\n * it encounters either end of the list, it will stop and not wrap.\n */\n _setActiveInDefaultMode(delta) {\n this._setActiveItemByIndex(this._activeItemIndex + delta, delta);\n }\n /**\n * Sets the active item to the first enabled item starting at the index specified. If the\n * item is disabled, it will move in the fallbackDelta direction until it either\n * finds an enabled item or encounters the end of the list.\n */\n _setActiveItemByIndex(index, fallbackDelta) {\n const items = this._getItemsArray();\n if (!items[index]) {\n return;\n }\n while (this._skipPredicateFn(items[index])) {\n index += fallbackDelta;\n if (!items[index]) {\n return;\n }\n }\n this.setActiveItem(index);\n }\n /** Returns the items as an array. */\n _getItemsArray() {\n return this._items instanceof QueryList ? this._items.toArray() : this._items;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass ActiveDescendantKeyManager extends ListKeyManager {\n setActiveItem(index) {\n if (this.activeItem) {\n this.activeItem.setInactiveStyles();\n }\n super.setActiveItem(index);\n if (this.activeItem) {\n this.activeItem.setActiveStyles();\n }\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass FocusKeyManager extends ListKeyManager {\n constructor() {\n super(...arguments);\n this._origin = 'program';\n }\n /**\n * Sets the focus origin that will be passed in to the items for any subsequent `focus` calls.\n * @param origin Focus origin to be used when focusing items.\n */\n setFocusOrigin(origin) {\n this._origin = origin;\n return this;\n }\n setActiveItem(item) {\n super.setActiveItem(item);\n if (this.activeItem) {\n this.activeItem.focus(this._origin);\n }\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Configuration for the isFocusable method.\n */\nclass IsFocusableConfig {\n constructor() {\n /**\n * Whether to count an element as focusable even if it is not currently visible.\n */\n this.ignoreVisibility = false;\n }\n}\n// The InteractivityChecker leans heavily on the ally.js accessibility utilities.\n// Methods like `isTabbable` are only covering specific edge-cases for the browsers which are\n// supported.\n/**\n * Utility for checking the interactivity of an element, such as whether is is focusable or\n * tabbable.\n */\nclass InteractivityChecker {\n constructor(_platform) {\n this._platform = _platform;\n }\n /**\n * Gets whether an element is disabled.\n *\n * @param element Element to be checked.\n * @returns Whether the element is disabled.\n */\n isDisabled(element) {\n // This does not capture some cases, such as a non-form control with a disabled attribute or\n // a form control inside of a disabled form, but should capture the most common cases.\n return element.hasAttribute('disabled');\n }\n /**\n * Gets whether an element is visible for the purposes of interactivity.\n *\n * This will capture states like `display: none` and `visibility: hidden`, but not things like\n * being clipped by an `overflow: hidden` parent or being outside the viewport.\n *\n * @returns Whether the element is visible.\n */\n isVisible(element) {\n return hasGeometry(element) && getComputedStyle(element).visibility === 'visible';\n }\n /**\n * Gets whether an element can be reached via Tab key.\n * Assumes that the element has already been checked with isFocusable.\n *\n * @param element Element to be checked.\n * @returns Whether the element is tabbable.\n */\n isTabbable(element) {\n // Nothing is tabbable on the server 😎\n if (!this._platform.isBrowser) {\n return false;\n }\n const frameElement = getFrameElement(getWindow(element));\n if (frameElement) {\n // Frame elements inherit their tabindex onto all child elements.\n if (getTabIndexValue(frameElement) === -1) {\n return false;\n }\n // Browsers disable tabbing to an element inside of an invisible frame.\n if (!this.isVisible(frameElement)) {\n return false;\n }\n }\n let nodeName = element.nodeName.toLowerCase();\n let tabIndexValue = getTabIndexValue(element);\n if (element.hasAttribute('contenteditable')) {\n return tabIndexValue !== -1;\n }\n if (nodeName === 'iframe' || nodeName === 'object') {\n // The frame or object's content may be tabbable depending on the content, but it's\n // not possibly to reliably detect the content of the frames. We always consider such\n // elements as non-tabbable.\n return false;\n }\n // In iOS, the browser only considers some specific elements as tabbable.\n if (this._platform.WEBKIT && this._platform.IOS && !isPotentiallyTabbableIOS(element)) {\n return false;\n }\n if (nodeName === 'audio') {\n // Audio elements without controls enabled are never tabbable, regardless\n // of the tabindex attribute explicitly being set.\n if (!element.hasAttribute('controls')) {\n return false;\n }\n // Audio elements with controls are by default tabbable unless the\n // tabindex attribute is set to `-1` explicitly.\n return tabIndexValue !== -1;\n }\n if (nodeName === 'video') {\n // For all video elements, if the tabindex attribute is set to `-1`, the video\n // is not tabbable. Note: We cannot rely on the default `HTMLElement.tabIndex`\n // property as that one is set to `-1` in Chrome, Edge and Safari v13.1. The\n // tabindex attribute is the source of truth here.\n if (tabIndexValue === -1) {\n return false;\n }\n // If the tabindex is explicitly set, and not `-1` (as per check before), the\n // video element is always tabbable (regardless of whether it has controls or not).\n if (tabIndexValue !== null) {\n return true;\n }\n // Otherwise (when no explicit tabindex is set), a video is only tabbable if it\n // has controls enabled. Firefox is special as videos are always tabbable regardless\n // of whether there are controls or not.\n return this._platform.FIREFOX || element.hasAttribute('controls');\n }\n return element.tabIndex >= 0;\n }\n /**\n * Gets whether an element can be focused by the user.\n *\n * @param element Element to be checked.\n * @param config The config object with options to customize this method's behavior\n * @returns Whether the element is focusable.\n */\n isFocusable(element, config) {\n // Perform checks in order of left to most expensive.\n // Again, naive approach that does not capture many edge cases and browser quirks.\n return (isPotentiallyFocusable(element) &&\n !this.isDisabled(element) &&\n (config?.ignoreVisibility || this.isVisible(element)));\n }\n}\nInteractivityChecker.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: InteractivityChecker, deps: [{ token: i1.Platform }], target: i0.ɵɵFactoryTarget.Injectable });\nInteractivityChecker.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: InteractivityChecker, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: InteractivityChecker, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.Platform }]; } });\n/**\n * Returns the frame element from a window object. Since browsers like MS Edge throw errors if\n * the frameElement property is being accessed from a different host address, this property\n * should be accessed carefully.\n */\nfunction getFrameElement(window) {\n try {\n return window.frameElement;\n }\n catch {\n return null;\n }\n}\n/** Checks whether the specified element has any geometry / rectangles. */\nfunction hasGeometry(element) {\n // Use logic from jQuery to check for an invisible element.\n // See https://github.com/jquery/jquery/blob/master/src/css/hiddenVisibleSelectors.js#L12\n return !!(element.offsetWidth ||\n element.offsetHeight ||\n (typeof element.getClientRects === 'function' && element.getClientRects().length));\n}\n/** Gets whether an element's */\nfunction isNativeFormElement(element) {\n let nodeName = element.nodeName.toLowerCase();\n return (nodeName === 'input' ||\n nodeName === 'select' ||\n nodeName === 'button' ||\n nodeName === 'textarea');\n}\n/** Gets whether an element is an ``. */\nfunction isHiddenInput(element) {\n return isInputElement(element) && element.type == 'hidden';\n}\n/** Gets whether an element is an anchor that has an href attribute. */\nfunction isAnchorWithHref(element) {\n return isAnchorElement(element) && element.hasAttribute('href');\n}\n/** Gets whether an element is an input element. */\nfunction isInputElement(element) {\n return element.nodeName.toLowerCase() == 'input';\n}\n/** Gets whether an element is an anchor element. */\nfunction isAnchorElement(element) {\n return element.nodeName.toLowerCase() == 'a';\n}\n/** Gets whether an element has a valid tabindex. */\nfunction hasValidTabIndex(element) {\n if (!element.hasAttribute('tabindex') || element.tabIndex === undefined) {\n return false;\n }\n let tabIndex = element.getAttribute('tabindex');\n return !!(tabIndex && !isNaN(parseInt(tabIndex, 10)));\n}\n/**\n * Returns the parsed tabindex from the element attributes instead of returning the\n * evaluated tabindex from the browsers defaults.\n */\nfunction getTabIndexValue(element) {\n if (!hasValidTabIndex(element)) {\n return null;\n }\n // See browser issue in Gecko https://bugzilla.mozilla.org/show_bug.cgi?id=1128054\n const tabIndex = parseInt(element.getAttribute('tabindex') || '', 10);\n return isNaN(tabIndex) ? -1 : tabIndex;\n}\n/** Checks whether the specified element is potentially tabbable on iOS */\nfunction isPotentiallyTabbableIOS(element) {\n let nodeName = element.nodeName.toLowerCase();\n let inputType = nodeName === 'input' && element.type;\n return (inputType === 'text' ||\n inputType === 'password' ||\n nodeName === 'select' ||\n nodeName === 'textarea');\n}\n/**\n * Gets whether an element is potentially focusable without taking current visible/disabled state\n * into account.\n */\nfunction isPotentiallyFocusable(element) {\n // Inputs are potentially focusable *unless* they're type=\"hidden\".\n if (isHiddenInput(element)) {\n return false;\n }\n return (isNativeFormElement(element) ||\n isAnchorWithHref(element) ||\n element.hasAttribute('contenteditable') ||\n hasValidTabIndex(element));\n}\n/** Gets the parent window of a DOM node with regards of being inside of an iframe. */\nfunction getWindow(node) {\n // ownerDocument is null if `node` itself *is* a document.\n return (node.ownerDocument && node.ownerDocument.defaultView) || window;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Class that allows for trapping focus within a DOM element.\n *\n * This class currently uses a relatively simple approach to focus trapping.\n * It assumes that the tab order is the same as DOM order, which is not necessarily true.\n * Things like `tabIndex > 0`, flex `order`, and shadow roots can cause the two to be misaligned.\n *\n * @deprecated Use `ConfigurableFocusTrap` instead.\n * @breaking-change 11.0.0\n */\nclass FocusTrap {\n constructor(_element, _checker, _ngZone, _document, deferAnchors = false) {\n this._element = _element;\n this._checker = _checker;\n this._ngZone = _ngZone;\n this._document = _document;\n this._hasAttached = false;\n // Event listeners for the anchors. Need to be regular functions so that we can unbind them later.\n this.startAnchorListener = () => this.focusLastTabbableElement();\n this.endAnchorListener = () => this.focusFirstTabbableElement();\n this._enabled = true;\n if (!deferAnchors) {\n this.attachAnchors();\n }\n }\n /** Whether the focus trap is active. */\n get enabled() {\n return this._enabled;\n }\n set enabled(value) {\n this._enabled = value;\n if (this._startAnchor && this._endAnchor) {\n this._toggleAnchorTabIndex(value, this._startAnchor);\n this._toggleAnchorTabIndex(value, this._endAnchor);\n }\n }\n /** Destroys the focus trap by cleaning up the anchors. */\n destroy() {\n const startAnchor = this._startAnchor;\n const endAnchor = this._endAnchor;\n if (startAnchor) {\n startAnchor.removeEventListener('focus', this.startAnchorListener);\n startAnchor.remove();\n }\n if (endAnchor) {\n endAnchor.removeEventListener('focus', this.endAnchorListener);\n endAnchor.remove();\n }\n this._startAnchor = this._endAnchor = null;\n this._hasAttached = false;\n }\n /**\n * Inserts the anchors into the DOM. This is usually done automatically\n * in the constructor, but can be deferred for cases like directives with `*ngIf`.\n * @returns Whether the focus trap managed to attach successfully. This may not be the case\n * if the target element isn't currently in the DOM.\n */\n attachAnchors() {\n // If we're not on the browser, there can be no focus to trap.\n if (this._hasAttached) {\n return true;\n }\n this._ngZone.runOutsideAngular(() => {\n if (!this._startAnchor) {\n this._startAnchor = this._createAnchor();\n this._startAnchor.addEventListener('focus', this.startAnchorListener);\n }\n if (!this._endAnchor) {\n this._endAnchor = this._createAnchor();\n this._endAnchor.addEventListener('focus', this.endAnchorListener);\n }\n });\n if (this._element.parentNode) {\n this._element.parentNode.insertBefore(this._startAnchor, this._element);\n this._element.parentNode.insertBefore(this._endAnchor, this._element.nextSibling);\n this._hasAttached = true;\n }\n return this._hasAttached;\n }\n /**\n * Waits for the zone to stabilize, then focuses the first tabbable element.\n * @returns Returns a promise that resolves with a boolean, depending\n * on whether focus was moved successfully.\n */\n focusInitialElementWhenReady(options) {\n return new Promise(resolve => {\n this._executeOnStable(() => resolve(this.focusInitialElement(options)));\n });\n }\n /**\n * Waits for the zone to stabilize, then focuses\n * the first tabbable element within the focus trap region.\n * @returns Returns a promise that resolves with a boolean, depending\n * on whether focus was moved successfully.\n */\n focusFirstTabbableElementWhenReady(options) {\n return new Promise(resolve => {\n this._executeOnStable(() => resolve(this.focusFirstTabbableElement(options)));\n });\n }\n /**\n * Waits for the zone to stabilize, then focuses\n * the last tabbable element within the focus trap region.\n * @returns Returns a promise that resolves with a boolean, depending\n * on whether focus was moved successfully.\n */\n focusLastTabbableElementWhenReady(options) {\n return new Promise(resolve => {\n this._executeOnStable(() => resolve(this.focusLastTabbableElement(options)));\n });\n }\n /**\n * Get the specified boundary element of the trapped region.\n * @param bound The boundary to get (start or end of trapped region).\n * @returns The boundary element.\n */\n _getRegionBoundary(bound) {\n // Contains the deprecated version of selector, for temporary backwards comparability.\n let markers = this._element.querySelectorAll(`[cdk-focus-region-${bound}], ` + `[cdkFocusRegion${bound}], ` + `[cdk-focus-${bound}]`);\n for (let i = 0; i < markers.length; i++) {\n // @breaking-change 8.0.0\n if (markers[i].hasAttribute(`cdk-focus-${bound}`)) {\n console.warn(`Found use of deprecated attribute 'cdk-focus-${bound}', ` +\n `use 'cdkFocusRegion${bound}' instead. The deprecated ` +\n `attribute will be removed in 8.0.0.`, markers[i]);\n }\n else if (markers[i].hasAttribute(`cdk-focus-region-${bound}`)) {\n console.warn(`Found use of deprecated attribute 'cdk-focus-region-${bound}', ` +\n `use 'cdkFocusRegion${bound}' instead. The deprecated attribute ` +\n `will be removed in 8.0.0.`, markers[i]);\n }\n }\n if (bound == 'start') {\n return markers.length ? markers[0] : this._getFirstTabbableElement(this._element);\n }\n return markers.length\n ? markers[markers.length - 1]\n : this._getLastTabbableElement(this._element);\n }\n /**\n * Focuses the element that should be focused when the focus trap is initialized.\n * @returns Whether focus was moved successfully.\n */\n focusInitialElement(options) {\n // Contains the deprecated version of selector, for temporary backwards comparability.\n const redirectToElement = this._element.querySelector(`[cdk-focus-initial], ` + `[cdkFocusInitial]`);\n if (redirectToElement) {\n // @breaking-change 8.0.0\n if (redirectToElement.hasAttribute(`cdk-focus-initial`)) {\n console.warn(`Found use of deprecated attribute 'cdk-focus-initial', ` +\n `use 'cdkFocusInitial' instead. The deprecated attribute ` +\n `will be removed in 8.0.0`, redirectToElement);\n }\n // Warn the consumer if the element they've pointed to\n // isn't focusable, when not in production mode.\n if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n !this._checker.isFocusable(redirectToElement)) {\n console.warn(`Element matching '[cdkFocusInitial]' is not focusable.`, redirectToElement);\n }\n if (!this._checker.isFocusable(redirectToElement)) {\n const focusableChild = this._getFirstTabbableElement(redirectToElement);\n focusableChild?.focus(options);\n return !!focusableChild;\n }\n redirectToElement.focus(options);\n return true;\n }\n return this.focusFirstTabbableElement(options);\n }\n /**\n * Focuses the first tabbable element within the focus trap region.\n * @returns Whether focus was moved successfully.\n */\n focusFirstTabbableElement(options) {\n const redirectToElement = this._getRegionBoundary('start');\n if (redirectToElement) {\n redirectToElement.focus(options);\n }\n return !!redirectToElement;\n }\n /**\n * Focuses the last tabbable element within the focus trap region.\n * @returns Whether focus was moved successfully.\n */\n focusLastTabbableElement(options) {\n const redirectToElement = this._getRegionBoundary('end');\n if (redirectToElement) {\n redirectToElement.focus(options);\n }\n return !!redirectToElement;\n }\n /**\n * Checks whether the focus trap has successfully been attached.\n */\n hasAttached() {\n return this._hasAttached;\n }\n /** Get the first tabbable element from a DOM subtree (inclusive). */\n _getFirstTabbableElement(root) {\n if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {\n return root;\n }\n const children = root.children;\n for (let i = 0; i < children.length; i++) {\n const tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE\n ? this._getFirstTabbableElement(children[i])\n : null;\n if (tabbableChild) {\n return tabbableChild;\n }\n }\n return null;\n }\n /** Get the last tabbable element from a DOM subtree (inclusive). */\n _getLastTabbableElement(root) {\n if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {\n return root;\n }\n // Iterate in reverse DOM order.\n const children = root.children;\n for (let i = children.length - 1; i >= 0; i--) {\n const tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE\n ? this._getLastTabbableElement(children[i])\n : null;\n if (tabbableChild) {\n return tabbableChild;\n }\n }\n return null;\n }\n /** Creates an anchor element. */\n _createAnchor() {\n const anchor = this._document.createElement('div');\n this._toggleAnchorTabIndex(this._enabled, anchor);\n anchor.classList.add('cdk-visually-hidden');\n anchor.classList.add('cdk-focus-trap-anchor');\n anchor.setAttribute('aria-hidden', 'true');\n return anchor;\n }\n /**\n * Toggles the `tabindex` of an anchor, based on the enabled state of the focus trap.\n * @param isEnabled Whether the focus trap is enabled.\n * @param anchor Anchor on which to toggle the tabindex.\n */\n _toggleAnchorTabIndex(isEnabled, anchor) {\n // Remove the tabindex completely, rather than setting it to -1, because if the\n // element has a tabindex, the user might still hit it when navigating with the arrow keys.\n isEnabled ? anchor.setAttribute('tabindex', '0') : anchor.removeAttribute('tabindex');\n }\n /**\n * Toggles the`tabindex` of both anchors to either trap Tab focus or allow it to escape.\n * @param enabled: Whether the anchors should trap Tab.\n */\n toggleAnchors(enabled) {\n if (this._startAnchor && this._endAnchor) {\n this._toggleAnchorTabIndex(enabled, this._startAnchor);\n this._toggleAnchorTabIndex(enabled, this._endAnchor);\n }\n }\n /** Executes a function when the zone is stable. */\n _executeOnStable(fn) {\n if (this._ngZone.isStable) {\n fn();\n }\n else {\n this._ngZone.onStable.pipe(take(1)).subscribe(fn);\n }\n }\n}\n/**\n * Factory that allows easy instantiation of focus traps.\n * @deprecated Use `ConfigurableFocusTrapFactory` instead.\n * @breaking-change 11.0.0\n */\nclass FocusTrapFactory {\n constructor(_checker, _ngZone, _document) {\n this._checker = _checker;\n this._ngZone = _ngZone;\n this._document = _document;\n }\n /**\n * Creates a focus-trapped region around the given element.\n * @param element The element around which focus will be trapped.\n * @param deferCaptureElements Defers the creation of focus-capturing elements to be done\n * manually by the user.\n * @returns The created focus trap instance.\n */\n create(element, deferCaptureElements = false) {\n return new FocusTrap(element, this._checker, this._ngZone, this._document, deferCaptureElements);\n }\n}\nFocusTrapFactory.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusTrapFactory, deps: [{ token: InteractivityChecker }, { token: i0.NgZone }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nFocusTrapFactory.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusTrapFactory, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusTrapFactory, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: InteractivityChecker }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n/** Directive for trapping focus within a region. */\nclass CdkTrapFocus {\n constructor(_elementRef, _focusTrapFactory, \n /**\n * @deprecated No longer being used. To be removed.\n * @breaking-change 13.0.0\n */\n _document) {\n this._elementRef = _elementRef;\n this._focusTrapFactory = _focusTrapFactory;\n /** Previously focused element to restore focus to upon destroy when using autoCapture. */\n this._previouslyFocusedElement = null;\n this.focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement, true);\n }\n /** Whether the focus trap is active. */\n get enabled() {\n return this.focusTrap.enabled;\n }\n set enabled(value) {\n this.focusTrap.enabled = coerceBooleanProperty(value);\n }\n /**\n * Whether the directive should automatically move focus into the trapped region upon\n * initialization and return focus to the previous activeElement upon destruction.\n */\n get autoCapture() {\n return this._autoCapture;\n }\n set autoCapture(value) {\n this._autoCapture = coerceBooleanProperty(value);\n }\n ngOnDestroy() {\n this.focusTrap.destroy();\n // If we stored a previously focused element when using autoCapture, return focus to that\n // element now that the trapped region is being destroyed.\n if (this._previouslyFocusedElement) {\n this._previouslyFocusedElement.focus();\n this._previouslyFocusedElement = null;\n }\n }\n ngAfterContentInit() {\n this.focusTrap.attachAnchors();\n if (this.autoCapture) {\n this._captureFocus();\n }\n }\n ngDoCheck() {\n if (!this.focusTrap.hasAttached()) {\n this.focusTrap.attachAnchors();\n }\n }\n ngOnChanges(changes) {\n const autoCaptureChange = changes['autoCapture'];\n if (autoCaptureChange &&\n !autoCaptureChange.firstChange &&\n this.autoCapture &&\n this.focusTrap.hasAttached()) {\n this._captureFocus();\n }\n }\n _captureFocus() {\n this._previouslyFocusedElement = _getFocusedElementPierceShadowDom();\n this.focusTrap.focusInitialElementWhenReady();\n }\n}\nCdkTrapFocus.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkTrapFocus, deps: [{ token: i0.ElementRef }, { token: FocusTrapFactory }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Directive });\nCdkTrapFocus.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkTrapFocus, selector: \"[cdkTrapFocus]\", inputs: { enabled: [\"cdkTrapFocus\", \"enabled\"], autoCapture: [\"cdkTrapFocusAutoCapture\", \"autoCapture\"] }, exportAs: [\"cdkTrapFocus\"], usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkTrapFocus, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkTrapFocus]',\n exportAs: 'cdkTrapFocus',\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: FocusTrapFactory }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; }, propDecorators: { enabled: [{\n type: Input,\n args: ['cdkTrapFocus']\n }], autoCapture: [{\n type: Input,\n args: ['cdkTrapFocusAutoCapture']\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Class that allows for trapping focus within a DOM element.\n *\n * This class uses a strategy pattern that determines how it traps focus.\n * See FocusTrapInertStrategy.\n */\nclass ConfigurableFocusTrap extends FocusTrap {\n constructor(_element, _checker, _ngZone, _document, _focusTrapManager, _inertStrategy, config) {\n super(_element, _checker, _ngZone, _document, config.defer);\n this._focusTrapManager = _focusTrapManager;\n this._inertStrategy = _inertStrategy;\n this._focusTrapManager.register(this);\n }\n /** Whether the FocusTrap is enabled. */\n get enabled() {\n return this._enabled;\n }\n set enabled(value) {\n this._enabled = value;\n if (this._enabled) {\n this._focusTrapManager.register(this);\n }\n else {\n this._focusTrapManager.deregister(this);\n }\n }\n /** Notifies the FocusTrapManager that this FocusTrap will be destroyed. */\n destroy() {\n this._focusTrapManager.deregister(this);\n super.destroy();\n }\n /** @docs-private Implemented as part of ManagedFocusTrap. */\n _enable() {\n this._inertStrategy.preventFocus(this);\n this.toggleAnchors(true);\n }\n /** @docs-private Implemented as part of ManagedFocusTrap. */\n _disable() {\n this._inertStrategy.allowFocus(this);\n this.toggleAnchors(false);\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** The injection token used to specify the inert strategy. */\nconst FOCUS_TRAP_INERT_STRATEGY = new InjectionToken('FOCUS_TRAP_INERT_STRATEGY');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Lightweight FocusTrapInertStrategy that adds a document focus event\n * listener to redirect focus back inside the FocusTrap.\n */\nclass EventListenerFocusTrapInertStrategy {\n constructor() {\n /** Focus event handler. */\n this._listener = null;\n }\n /** Adds a document event listener that keeps focus inside the FocusTrap. */\n preventFocus(focusTrap) {\n // Ensure there's only one listener per document\n if (this._listener) {\n focusTrap._document.removeEventListener('focus', this._listener, true);\n }\n this._listener = (e) => this._trapFocus(focusTrap, e);\n focusTrap._ngZone.runOutsideAngular(() => {\n focusTrap._document.addEventListener('focus', this._listener, true);\n });\n }\n /** Removes the event listener added in preventFocus. */\n allowFocus(focusTrap) {\n if (!this._listener) {\n return;\n }\n focusTrap._document.removeEventListener('focus', this._listener, true);\n this._listener = null;\n }\n /**\n * Refocuses the first element in the FocusTrap if the focus event target was outside\n * the FocusTrap.\n *\n * This is an event listener callback. The event listener is added in runOutsideAngular,\n * so all this code runs outside Angular as well.\n */\n _trapFocus(focusTrap, event) {\n const target = event.target;\n const focusTrapRoot = focusTrap._element;\n // Don't refocus if target was in an overlay, because the overlay might be associated\n // with an element inside the FocusTrap, ex. mat-select.\n if (target && !focusTrapRoot.contains(target) && !target.closest?.('div.cdk-overlay-pane')) {\n // Some legacy FocusTrap usages have logic that focuses some element on the page\n // just before FocusTrap is destroyed. For backwards compatibility, wait\n // to be sure FocusTrap is still enabled before refocusing.\n setTimeout(() => {\n // Check whether focus wasn't put back into the focus trap while the timeout was pending.\n if (focusTrap.enabled && !focusTrapRoot.contains(focusTrap._document.activeElement)) {\n focusTrap.focusFirstTabbableElement();\n }\n });\n }\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Injectable that ensures only the most recently enabled FocusTrap is active. */\nclass FocusTrapManager {\n constructor() {\n // A stack of the FocusTraps on the page. Only the FocusTrap at the\n // top of the stack is active.\n this._focusTrapStack = [];\n }\n /**\n * Disables the FocusTrap at the top of the stack, and then pushes\n * the new FocusTrap onto the stack.\n */\n register(focusTrap) {\n // Dedupe focusTraps that register multiple times.\n this._focusTrapStack = this._focusTrapStack.filter(ft => ft !== focusTrap);\n let stack = this._focusTrapStack;\n if (stack.length) {\n stack[stack.length - 1]._disable();\n }\n stack.push(focusTrap);\n focusTrap._enable();\n }\n /**\n * Removes the FocusTrap from the stack, and activates the\n * FocusTrap that is the new top of the stack.\n */\n deregister(focusTrap) {\n focusTrap._disable();\n const stack = this._focusTrapStack;\n const i = stack.indexOf(focusTrap);\n if (i !== -1) {\n stack.splice(i, 1);\n if (stack.length) {\n stack[stack.length - 1]._enable();\n }\n }\n }\n}\nFocusTrapManager.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusTrapManager, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nFocusTrapManager.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusTrapManager, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusTrapManager, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Factory that allows easy instantiation of configurable focus traps. */\nclass ConfigurableFocusTrapFactory {\n constructor(_checker, _ngZone, _focusTrapManager, _document, _inertStrategy) {\n this._checker = _checker;\n this._ngZone = _ngZone;\n this._focusTrapManager = _focusTrapManager;\n this._document = _document;\n // TODO split up the strategies into different modules, similar to DateAdapter.\n this._inertStrategy = _inertStrategy || new EventListenerFocusTrapInertStrategy();\n }\n create(element, config = { defer: false }) {\n let configObject;\n if (typeof config === 'boolean') {\n configObject = { defer: config };\n }\n else {\n configObject = config;\n }\n return new ConfigurableFocusTrap(element, this._checker, this._ngZone, this._document, this._focusTrapManager, this._inertStrategy, configObject);\n }\n}\nConfigurableFocusTrapFactory.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ConfigurableFocusTrapFactory, deps: [{ token: InteractivityChecker }, { token: i0.NgZone }, { token: FocusTrapManager }, { token: DOCUMENT }, { token: FOCUS_TRAP_INERT_STRATEGY, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nConfigurableFocusTrapFactory.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ConfigurableFocusTrapFactory, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ConfigurableFocusTrapFactory, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: InteractivityChecker }, { type: i0.NgZone }, { type: FocusTrapManager }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [FOCUS_TRAP_INERT_STRATEGY]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Gets whether an event could be a faked `mousedown` event dispatched by a screen reader. */\nfunction isFakeMousedownFromScreenReader(event) {\n // Some screen readers will dispatch a fake `mousedown` event when pressing enter or space on\n // a clickable element. We can distinguish these events when both `offsetX` and `offsetY` are\n // zero. Note that there's an edge case where the user could click the 0x0 spot of the screen\n // themselves, but that is unlikely to contain interaction elements. Historically we used to\n // check `event.buttons === 0`, however that no longer works on recent versions of NVDA.\n return event.offsetX === 0 && event.offsetY === 0;\n}\n/** Gets whether an event could be a faked `touchstart` event dispatched by a screen reader. */\nfunction isFakeTouchstartFromScreenReader(event) {\n const touch = (event.touches && event.touches[0]) || (event.changedTouches && event.changedTouches[0]);\n // A fake `touchstart` can be distinguished from a real one by looking at the `identifier`\n // which is typically >= 0 on a real device versus -1 from a screen reader. Just to be safe,\n // we can also look at `radiusX` and `radiusY`. This behavior was observed against a Windows 10\n // device with a touch screen running NVDA v2020.4 and Firefox 85 or Chrome 88.\n return (!!touch &&\n touch.identifier === -1 &&\n (touch.radiusX == null || touch.radiusX === 1) &&\n (touch.radiusY == null || touch.radiusY === 1));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Injectable options for the InputModalityDetector. These are shallowly merged with the default\n * options.\n */\nconst INPUT_MODALITY_DETECTOR_OPTIONS = new InjectionToken('cdk-input-modality-detector-options');\n/**\n * Default options for the InputModalityDetector.\n *\n * Modifier keys are ignored by default (i.e. when pressed won't cause the service to detect\n * keyboard input modality) for two reasons:\n *\n * 1. Modifier keys are commonly used with mouse to perform actions such as 'right click' or 'open\n * in new tab', and are thus less representative of actual keyboard interaction.\n * 2. VoiceOver triggers some keyboard events when linearly navigating with Control + Option (but\n * confusingly not with Caps Lock). Thus, to have parity with other screen readers, we ignore\n * these keys so as to not update the input modality.\n *\n * Note that we do not by default ignore the right Meta key on Safari because it has the same key\n * code as the ContextMenu key on other browsers. When we switch to using event.key, we can\n * distinguish between the two.\n */\nconst INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS = {\n ignoreKeys: [ALT, CONTROL, MAC_META, META, SHIFT],\n};\n/**\n * The amount of time needed to pass after a touchstart event in order for a subsequent mousedown\n * event to be attributed as mouse and not touch.\n *\n * This is the value used by AngularJS Material. Through trial and error (on iPhone 6S) they found\n * that a value of around 650ms seems appropriate.\n */\nconst TOUCH_BUFFER_MS = 650;\n/**\n * Event listener options that enable capturing and also mark the listener as passive if the browser\n * supports it.\n */\nconst modalityEventListenerOptions = normalizePassiveListenerOptions({\n passive: true,\n capture: true,\n});\n/**\n * Service that detects the user's input modality.\n *\n * This service does not update the input modality when a user navigates with a screen reader\n * (e.g. linear navigation with VoiceOver, object navigation / browse mode with NVDA, virtual PC\n * cursor mode with JAWS). This is in part due to technical limitations (i.e. keyboard events do not\n * fire as expected in these modes) but is also arguably the correct behavior. Navigating with a\n * screen reader is akin to visually scanning a page, and should not be interpreted as actual user\n * input interaction.\n *\n * When a user is not navigating but *interacting* with a screen reader, this service attempts to\n * update the input modality to keyboard, but in general this service's behavior is largely\n * undefined.\n */\nclass InputModalityDetector {\n constructor(_platform, ngZone, document, options) {\n this._platform = _platform;\n /**\n * The most recently detected input modality event target. Is null if no input modality has been\n * detected or if the associated event target is null for some unknown reason.\n */\n this._mostRecentTarget = null;\n /** The underlying BehaviorSubject that emits whenever an input modality is detected. */\n this._modality = new BehaviorSubject(null);\n /**\n * The timestamp of the last touch input modality. Used to determine whether mousedown events\n * should be attributed to mouse or touch.\n */\n this._lastTouchMs = 0;\n /**\n * Handles keydown events. Must be an arrow function in order to preserve the context when it gets\n * bound.\n */\n this._onKeydown = (event) => {\n // If this is one of the keys we should ignore, then ignore it and don't update the input\n // modality to keyboard.\n if (this._options?.ignoreKeys?.some(keyCode => keyCode === event.keyCode)) {\n return;\n }\n this._modality.next('keyboard');\n this._mostRecentTarget = _getEventTarget(event);\n };\n /**\n * Handles mousedown events. Must be an arrow function in order to preserve the context when it\n * gets bound.\n */\n this._onMousedown = (event) => {\n // Touches trigger both touch and mouse events, so we need to distinguish between mouse events\n // that were triggered via mouse vs touch. To do so, check if the mouse event occurs closely\n // after the previous touch event.\n if (Date.now() - this._lastTouchMs < TOUCH_BUFFER_MS) {\n return;\n }\n // Fake mousedown events are fired by some screen readers when controls are activated by the\n // screen reader. Attribute them to keyboard input modality.\n this._modality.next(isFakeMousedownFromScreenReader(event) ? 'keyboard' : 'mouse');\n this._mostRecentTarget = _getEventTarget(event);\n };\n /**\n * Handles touchstart events. Must be an arrow function in order to preserve the context when it\n * gets bound.\n */\n this._onTouchstart = (event) => {\n // Same scenario as mentioned in _onMousedown, but on touch screen devices, fake touchstart\n // events are fired. Again, attribute to keyboard input modality.\n if (isFakeTouchstartFromScreenReader(event)) {\n this._modality.next('keyboard');\n return;\n }\n // Store the timestamp of this touch event, as it's used to distinguish between mouse events\n // triggered via mouse vs touch.\n this._lastTouchMs = Date.now();\n this._modality.next('touch');\n this._mostRecentTarget = _getEventTarget(event);\n };\n this._options = {\n ...INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS,\n ...options,\n };\n // Skip the first emission as it's null.\n this.modalityDetected = this._modality.pipe(skip(1));\n this.modalityChanged = this.modalityDetected.pipe(distinctUntilChanged());\n // If we're not in a browser, this service should do nothing, as there's no relevant input\n // modality to detect.\n if (_platform.isBrowser) {\n ngZone.runOutsideAngular(() => {\n document.addEventListener('keydown', this._onKeydown, modalityEventListenerOptions);\n document.addEventListener('mousedown', this._onMousedown, modalityEventListenerOptions);\n document.addEventListener('touchstart', this._onTouchstart, modalityEventListenerOptions);\n });\n }\n }\n /** The most recently detected input modality. */\n get mostRecentModality() {\n return this._modality.value;\n }\n ngOnDestroy() {\n this._modality.complete();\n if (this._platform.isBrowser) {\n document.removeEventListener('keydown', this._onKeydown, modalityEventListenerOptions);\n document.removeEventListener('mousedown', this._onMousedown, modalityEventListenerOptions);\n document.removeEventListener('touchstart', this._onTouchstart, modalityEventListenerOptions);\n }\n }\n}\nInputModalityDetector.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: InputModalityDetector, deps: [{ token: i1.Platform }, { token: i0.NgZone }, { token: DOCUMENT }, { token: INPUT_MODALITY_DETECTOR_OPTIONS, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nInputModalityDetector.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: InputModalityDetector, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: InputModalityDetector, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.Platform }, { type: i0.NgZone }, { type: Document, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [INPUT_MODALITY_DETECTOR_OPTIONS]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst LIVE_ANNOUNCER_ELEMENT_TOKEN = new InjectionToken('liveAnnouncerElement', {\n providedIn: 'root',\n factory: LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY,\n});\n/** @docs-private */\nfunction LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY() {\n return null;\n}\n/** Injection token that can be used to configure the default options for the LiveAnnouncer. */\nconst LIVE_ANNOUNCER_DEFAULT_OPTIONS = new InjectionToken('LIVE_ANNOUNCER_DEFAULT_OPTIONS');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass LiveAnnouncer {\n constructor(elementToken, _ngZone, _document, _defaultOptions) {\n this._ngZone = _ngZone;\n this._defaultOptions = _defaultOptions;\n // We inject the live element and document as `any` because the constructor signature cannot\n // reference browser globals (HTMLElement, Document) on non-browser environments, since having\n // a class decorator causes TypeScript to preserve the constructor signature types.\n this._document = _document;\n this._liveElement = elementToken || this._createLiveElement();\n }\n announce(message, ...args) {\n const defaultOptions = this._defaultOptions;\n let politeness;\n let duration;\n if (args.length === 1 && typeof args[0] === 'number') {\n duration = args[0];\n }\n else {\n [politeness, duration] = args;\n }\n this.clear();\n clearTimeout(this._previousTimeout);\n if (!politeness) {\n politeness =\n defaultOptions && defaultOptions.politeness ? defaultOptions.politeness : 'polite';\n }\n if (duration == null && defaultOptions) {\n duration = defaultOptions.duration;\n }\n // TODO: ensure changing the politeness works on all environments we support.\n this._liveElement.setAttribute('aria-live', politeness);\n // This 100ms timeout is necessary for some browser + screen-reader combinations:\n // - Both JAWS and NVDA over IE11 will not announce anything without a non-zero timeout.\n // - With Chrome and IE11 with NVDA or JAWS, a repeated (identical) message won't be read a\n // second time without clearing and then using a non-zero delay.\n // (using JAWS 17 at time of this writing).\n return this._ngZone.runOutsideAngular(() => {\n return new Promise(resolve => {\n clearTimeout(this._previousTimeout);\n this._previousTimeout = setTimeout(() => {\n this._liveElement.textContent = message;\n resolve();\n if (typeof duration === 'number') {\n this._previousTimeout = setTimeout(() => this.clear(), duration);\n }\n }, 100);\n });\n });\n }\n /**\n * Clears the current text from the announcer element. Can be used to prevent\n * screen readers from reading the text out again while the user is going\n * through the page landmarks.\n */\n clear() {\n if (this._liveElement) {\n this._liveElement.textContent = '';\n }\n }\n ngOnDestroy() {\n clearTimeout(this._previousTimeout);\n this._liveElement?.remove();\n this._liveElement = null;\n }\n _createLiveElement() {\n const elementClass = 'cdk-live-announcer-element';\n const previousElements = this._document.getElementsByClassName(elementClass);\n const liveEl = this._document.createElement('div');\n // Remove any old containers. This can happen when coming in from a server-side-rendered page.\n for (let i = 0; i < previousElements.length; i++) {\n previousElements[i].remove();\n }\n liveEl.classList.add(elementClass);\n liveEl.classList.add('cdk-visually-hidden');\n liveEl.setAttribute('aria-atomic', 'true');\n liveEl.setAttribute('aria-live', 'polite');\n this._document.body.appendChild(liveEl);\n return liveEl;\n }\n}\nLiveAnnouncer.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: LiveAnnouncer, deps: [{ token: LIVE_ANNOUNCER_ELEMENT_TOKEN, optional: true }, { token: i0.NgZone }, { token: DOCUMENT }, { token: LIVE_ANNOUNCER_DEFAULT_OPTIONS, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nLiveAnnouncer.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: LiveAnnouncer, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: LiveAnnouncer, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [LIVE_ANNOUNCER_ELEMENT_TOKEN]\n }] }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [LIVE_ANNOUNCER_DEFAULT_OPTIONS]\n }] }]; } });\n/**\n * A directive that works similarly to aria-live, but uses the LiveAnnouncer to ensure compatibility\n * with a wider range of browsers and screen readers.\n */\nclass CdkAriaLive {\n constructor(_elementRef, _liveAnnouncer, _contentObserver, _ngZone) {\n this._elementRef = _elementRef;\n this._liveAnnouncer = _liveAnnouncer;\n this._contentObserver = _contentObserver;\n this._ngZone = _ngZone;\n this._politeness = 'polite';\n }\n /** The aria-live politeness level to use when announcing messages. */\n get politeness() {\n return this._politeness;\n }\n set politeness(value) {\n this._politeness = value === 'off' || value === 'assertive' ? value : 'polite';\n if (this._politeness === 'off') {\n if (this._subscription) {\n this._subscription.unsubscribe();\n this._subscription = null;\n }\n }\n else if (!this._subscription) {\n this._subscription = this._ngZone.runOutsideAngular(() => {\n return this._contentObserver.observe(this._elementRef).subscribe(() => {\n // Note that we use textContent here, rather than innerText, in order to avoid a reflow.\n const elementText = this._elementRef.nativeElement.textContent;\n // The `MutationObserver` fires also for attribute\n // changes which we don't want to announce.\n if (elementText !== this._previousAnnouncedText) {\n this._liveAnnouncer.announce(elementText, this._politeness);\n this._previousAnnouncedText = elementText;\n }\n });\n });\n }\n }\n ngOnDestroy() {\n if (this._subscription) {\n this._subscription.unsubscribe();\n }\n }\n}\nCdkAriaLive.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkAriaLive, deps: [{ token: i0.ElementRef }, { token: LiveAnnouncer }, { token: i1$1.ContentObserver }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Directive });\nCdkAriaLive.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkAriaLive, selector: \"[cdkAriaLive]\", inputs: { politeness: [\"cdkAriaLive\", \"politeness\"] }, exportAs: [\"cdkAriaLive\"], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkAriaLive, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkAriaLive]',\n exportAs: 'cdkAriaLive',\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: LiveAnnouncer }, { type: i1$1.ContentObserver }, { type: i0.NgZone }]; }, propDecorators: { politeness: [{\n type: Input,\n args: ['cdkAriaLive']\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** InjectionToken for FocusMonitorOptions. */\nconst FOCUS_MONITOR_DEFAULT_OPTIONS = new InjectionToken('cdk-focus-monitor-default-options');\n/**\n * Event listener options that enable capturing and also\n * mark the listener as passive if the browser supports it.\n */\nconst captureEventListenerOptions = normalizePassiveListenerOptions({\n passive: true,\n capture: true,\n});\n/** Monitors mouse and keyboard events to determine the cause of focus events. */\nclass FocusMonitor {\n constructor(_ngZone, _platform, _inputModalityDetector, \n /** @breaking-change 11.0.0 make document required */\n document, options) {\n this._ngZone = _ngZone;\n this._platform = _platform;\n this._inputModalityDetector = _inputModalityDetector;\n /** The focus origin that the next focus event is a result of. */\n this._origin = null;\n /** Whether the window has just been focused. */\n this._windowFocused = false;\n /**\n * Whether the origin was determined via a touch interaction. Necessary as properly attributing\n * focus events to touch interactions requires special logic.\n */\n this._originFromTouchInteraction = false;\n /** Map of elements being monitored to their info. */\n this._elementInfo = new Map();\n /** The number of elements currently being monitored. */\n this._monitoredElementCount = 0;\n /**\n * Keeps track of the root nodes to which we've currently bound a focus/blur handler,\n * as well as the number of monitored elements that they contain. We have to treat focus/blur\n * handlers differently from the rest of the events, because the browser won't emit events\n * to the document when focus moves inside of a shadow root.\n */\n this._rootNodeFocusListenerCount = new Map();\n /**\n * Event listener for `focus` events on the window.\n * Needs to be an arrow function in order to preserve the context when it gets bound.\n */\n this._windowFocusListener = () => {\n // Make a note of when the window regains focus, so we can\n // restore the origin info for the focused element.\n this._windowFocused = true;\n this._windowFocusTimeoutId = setTimeout(() => (this._windowFocused = false));\n };\n /** Subject for stopping our InputModalityDetector subscription. */\n this._stopInputModalityDetector = new Subject();\n /**\n * Event listener for `focus` and 'blur' events on the document.\n * Needs to be an arrow function in order to preserve the context when it gets bound.\n */\n this._rootNodeFocusAndBlurListener = (event) => {\n const target = _getEventTarget(event);\n const handler = event.type === 'focus' ? this._onFocus : this._onBlur;\n // We need to walk up the ancestor chain in order to support `checkChildren`.\n for (let element = target; element; element = element.parentElement) {\n handler.call(this, event, element);\n }\n };\n this._document = document;\n this._detectionMode = options?.detectionMode || 0 /* IMMEDIATE */;\n }\n monitor(element, checkChildren = false) {\n const nativeElement = coerceElement(element);\n // Do nothing if we're not on the browser platform or the passed in node isn't an element.\n if (!this._platform.isBrowser || nativeElement.nodeType !== 1) {\n return of(null);\n }\n // If the element is inside the shadow DOM, we need to bind our focus/blur listeners to\n // the shadow root, rather than the `document`, because the browser won't emit focus events\n // to the `document`, if focus is moving within the same shadow root.\n const rootNode = _getShadowRoot(nativeElement) || this._getDocument();\n const cachedInfo = this._elementInfo.get(nativeElement);\n // Check if we're already monitoring this element.\n if (cachedInfo) {\n if (checkChildren) {\n // TODO(COMP-318): this can be problematic, because it'll turn all non-checkChildren\n // observers into ones that behave as if `checkChildren` was turned on. We need a more\n // robust solution.\n cachedInfo.checkChildren = true;\n }\n return cachedInfo.subject;\n }\n // Create monitored element info.\n const info = {\n checkChildren: checkChildren,\n subject: new Subject(),\n rootNode,\n };\n this._elementInfo.set(nativeElement, info);\n this._registerGlobalListeners(info);\n return info.subject;\n }\n stopMonitoring(element) {\n const nativeElement = coerceElement(element);\n const elementInfo = this._elementInfo.get(nativeElement);\n if (elementInfo) {\n elementInfo.subject.complete();\n this._setClasses(nativeElement);\n this._elementInfo.delete(nativeElement);\n this._removeGlobalListeners(elementInfo);\n }\n }\n focusVia(element, origin, options) {\n const nativeElement = coerceElement(element);\n const focusedElement = this._getDocument().activeElement;\n // If the element is focused already, calling `focus` again won't trigger the event listener\n // which means that the focus classes won't be updated. If that's the case, update the classes\n // directly without waiting for an event.\n if (nativeElement === focusedElement) {\n this._getClosestElementsInfo(nativeElement).forEach(([currentElement, info]) => this._originChanged(currentElement, origin, info));\n }\n else {\n this._setOrigin(origin);\n // `focus` isn't available on the server\n if (typeof nativeElement.focus === 'function') {\n nativeElement.focus(options);\n }\n }\n }\n ngOnDestroy() {\n this._elementInfo.forEach((_info, element) => this.stopMonitoring(element));\n }\n /** Access injected document if available or fallback to global document reference */\n _getDocument() {\n return this._document || document;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n _getWindow() {\n const doc = this._getDocument();\n return doc.defaultView || window;\n }\n _getFocusOrigin(focusEventTarget) {\n if (this._origin) {\n // If the origin was realized via a touch interaction, we need to perform additional checks\n // to determine whether the focus origin should be attributed to touch or program.\n if (this._originFromTouchInteraction) {\n return this._shouldBeAttributedToTouch(focusEventTarget) ? 'touch' : 'program';\n }\n else {\n return this._origin;\n }\n }\n // If the window has just regained focus, we can restore the most recent origin from before the\n // window blurred. Otherwise, we've reached the point where we can't identify the source of the\n // focus. This typically means one of two things happened:\n //\n // 1) The element was programmatically focused, or\n // 2) The element was focused via screen reader navigation (which generally doesn't fire\n // events).\n //\n // Because we can't distinguish between these two cases, we default to setting `program`.\n return this._windowFocused && this._lastFocusOrigin ? this._lastFocusOrigin : 'program';\n }\n /**\n * Returns whether the focus event should be attributed to touch. Recall that in IMMEDIATE mode, a\n * touch origin isn't immediately reset at the next tick (see _setOrigin). This means that when we\n * handle a focus event following a touch interaction, we need to determine whether (1) the focus\n * event was directly caused by the touch interaction or (2) the focus event was caused by a\n * subsequent programmatic focus call triggered by the touch interaction.\n * @param focusEventTarget The target of the focus event under examination.\n */\n _shouldBeAttributedToTouch(focusEventTarget) {\n // Please note that this check is not perfect. Consider the following edge case:\n //\n //
\n // \n //
\n //\n // Suppose there is a FocusMonitor in IMMEDIATE mode attached to #parent. When the user touches\n // #child, #parent is programmatically focused. This code will attribute the focus to touch\n // instead of program. This is a relatively minor edge-case that can be worked around by using\n // focusVia(parent, 'program') to focus #parent.\n return (this._detectionMode === 1 /* EVENTUAL */ ||\n !!focusEventTarget?.contains(this._inputModalityDetector._mostRecentTarget));\n }\n /**\n * Sets the focus classes on the element based on the given focus origin.\n * @param element The element to update the classes on.\n * @param origin The focus origin.\n */\n _setClasses(element, origin) {\n element.classList.toggle('cdk-focused', !!origin);\n element.classList.toggle('cdk-touch-focused', origin === 'touch');\n element.classList.toggle('cdk-keyboard-focused', origin === 'keyboard');\n element.classList.toggle('cdk-mouse-focused', origin === 'mouse');\n element.classList.toggle('cdk-program-focused', origin === 'program');\n }\n /**\n * Updates the focus origin. If we're using immediate detection mode, we schedule an async\n * function to clear the origin at the end of a timeout. The duration of the timeout depends on\n * the origin being set.\n * @param origin The origin to set.\n * @param isFromInteraction Whether we are setting the origin from an interaction event.\n */\n _setOrigin(origin, isFromInteraction = false) {\n this._ngZone.runOutsideAngular(() => {\n this._origin = origin;\n this._originFromTouchInteraction = origin === 'touch' && isFromInteraction;\n // If we're in IMMEDIATE mode, reset the origin at the next tick (or in `TOUCH_BUFFER_MS` ms\n // for a touch event). We reset the origin at the next tick because Firefox focuses one tick\n // after the interaction event. We wait `TOUCH_BUFFER_MS` ms before resetting the origin for\n // a touch event because when a touch event is fired, the associated focus event isn't yet in\n // the event queue. Before doing so, clear any pending timeouts.\n if (this._detectionMode === 0 /* IMMEDIATE */) {\n clearTimeout(this._originTimeoutId);\n const ms = this._originFromTouchInteraction ? TOUCH_BUFFER_MS : 1;\n this._originTimeoutId = setTimeout(() => (this._origin = null), ms);\n }\n });\n }\n /**\n * Handles focus events on a registered element.\n * @param event The focus event.\n * @param element The monitored element.\n */\n _onFocus(event, element) {\n // NOTE(mmalerba): We currently set the classes based on the focus origin of the most recent\n // focus event affecting the monitored element. If we want to use the origin of the first event\n // instead we should check for the cdk-focused class here and return if the element already has\n // it. (This only matters for elements that have includesChildren = true).\n // If we are not counting child-element-focus as focused, make sure that the event target is the\n // monitored element itself.\n const elementInfo = this._elementInfo.get(element);\n const focusEventTarget = _getEventTarget(event);\n if (!elementInfo || (!elementInfo.checkChildren && element !== focusEventTarget)) {\n return;\n }\n this._originChanged(element, this._getFocusOrigin(focusEventTarget), elementInfo);\n }\n /**\n * Handles blur events on a registered element.\n * @param event The blur event.\n * @param element The monitored element.\n */\n _onBlur(event, element) {\n // If we are counting child-element-focus as focused, make sure that we aren't just blurring in\n // order to focus another child of the monitored element.\n const elementInfo = this._elementInfo.get(element);\n if (!elementInfo ||\n (elementInfo.checkChildren &&\n event.relatedTarget instanceof Node &&\n element.contains(event.relatedTarget))) {\n return;\n }\n this._setClasses(element);\n this._emitOrigin(elementInfo.subject, null);\n }\n _emitOrigin(subject, origin) {\n this._ngZone.run(() => subject.next(origin));\n }\n _registerGlobalListeners(elementInfo) {\n if (!this._platform.isBrowser) {\n return;\n }\n const rootNode = elementInfo.rootNode;\n const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode) || 0;\n if (!rootNodeFocusListeners) {\n this._ngZone.runOutsideAngular(() => {\n rootNode.addEventListener('focus', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n rootNode.addEventListener('blur', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n });\n }\n this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners + 1);\n // Register global listeners when first element is monitored.\n if (++this._monitoredElementCount === 1) {\n // Note: we listen to events in the capture phase so we\n // can detect them even if the user stops propagation.\n this._ngZone.runOutsideAngular(() => {\n const window = this._getWindow();\n window.addEventListener('focus', this._windowFocusListener);\n });\n // The InputModalityDetector is also just a collection of global listeners.\n this._inputModalityDetector.modalityDetected\n .pipe(takeUntil(this._stopInputModalityDetector))\n .subscribe(modality => {\n this._setOrigin(modality, true /* isFromInteraction */);\n });\n }\n }\n _removeGlobalListeners(elementInfo) {\n const rootNode = elementInfo.rootNode;\n if (this._rootNodeFocusListenerCount.has(rootNode)) {\n const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode);\n if (rootNodeFocusListeners > 1) {\n this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners - 1);\n }\n else {\n rootNode.removeEventListener('focus', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n rootNode.removeEventListener('blur', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n this._rootNodeFocusListenerCount.delete(rootNode);\n }\n }\n // Unregister global listeners when last element is unmonitored.\n if (!--this._monitoredElementCount) {\n const window = this._getWindow();\n window.removeEventListener('focus', this._windowFocusListener);\n // Equivalently, stop our InputModalityDetector subscription.\n this._stopInputModalityDetector.next();\n // Clear timeouts for all potentially pending timeouts to prevent the leaks.\n clearTimeout(this._windowFocusTimeoutId);\n clearTimeout(this._originTimeoutId);\n }\n }\n /** Updates all the state on an element once its focus origin has changed. */\n _originChanged(element, origin, elementInfo) {\n this._setClasses(element, origin);\n this._emitOrigin(elementInfo.subject, origin);\n this._lastFocusOrigin = origin;\n }\n /**\n * Collects the `MonitoredElementInfo` of a particular element and\n * all of its ancestors that have enabled `checkChildren`.\n * @param element Element from which to start the search.\n */\n _getClosestElementsInfo(element) {\n const results = [];\n this._elementInfo.forEach((info, currentElement) => {\n if (currentElement === element || (info.checkChildren && currentElement.contains(element))) {\n results.push([currentElement, info]);\n }\n });\n return results;\n }\n}\nFocusMonitor.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusMonitor, deps: [{ token: i0.NgZone }, { token: i1.Platform }, { token: InputModalityDetector }, { token: DOCUMENT, optional: true }, { token: FOCUS_MONITOR_DEFAULT_OPTIONS, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nFocusMonitor.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusMonitor, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: FocusMonitor, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i0.NgZone }, { type: i1.Platform }, { type: InputModalityDetector }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [FOCUS_MONITOR_DEFAULT_OPTIONS]\n }] }]; } });\n/**\n * Directive that determines how a particular element was focused (via keyboard, mouse, touch, or\n * programmatically) and adds corresponding classes to the element.\n *\n * There are two variants of this directive:\n * 1) cdkMonitorElementFocus: does not consider an element to be focused if one of its children is\n * focused.\n * 2) cdkMonitorSubtreeFocus: considers an element focused if it or any of its children are focused.\n */\nclass CdkMonitorFocus {\n constructor(_elementRef, _focusMonitor) {\n this._elementRef = _elementRef;\n this._focusMonitor = _focusMonitor;\n this.cdkFocusChange = new EventEmitter();\n }\n ngAfterViewInit() {\n const element = this._elementRef.nativeElement;\n this._monitorSubscription = this._focusMonitor\n .monitor(element, element.nodeType === 1 && element.hasAttribute('cdkMonitorSubtreeFocus'))\n .subscribe(origin => this.cdkFocusChange.emit(origin));\n }\n ngOnDestroy() {\n this._focusMonitor.stopMonitoring(this._elementRef);\n if (this._monitorSubscription) {\n this._monitorSubscription.unsubscribe();\n }\n }\n}\nCdkMonitorFocus.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkMonitorFocus, deps: [{ token: i0.ElementRef }, { token: FocusMonitor }], target: i0.ɵɵFactoryTarget.Directive });\nCdkMonitorFocus.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkMonitorFocus, selector: \"[cdkMonitorElementFocus], [cdkMonitorSubtreeFocus]\", outputs: { cdkFocusChange: \"cdkFocusChange\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkMonitorFocus, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkMonitorElementFocus], [cdkMonitorSubtreeFocus]',\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: FocusMonitor }]; }, propDecorators: { cdkFocusChange: [{\n type: Output\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** CSS class applied to the document body when in black-on-white high-contrast mode. */\nconst BLACK_ON_WHITE_CSS_CLASS = 'cdk-high-contrast-black-on-white';\n/** CSS class applied to the document body when in white-on-black high-contrast mode. */\nconst WHITE_ON_BLACK_CSS_CLASS = 'cdk-high-contrast-white-on-black';\n/** CSS class applied to the document body when in high-contrast mode. */\nconst HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS = 'cdk-high-contrast-active';\n/**\n * Service to determine whether the browser is currently in a high-contrast-mode environment.\n *\n * Microsoft Windows supports an accessibility feature called \"High Contrast Mode\". This mode\n * changes the appearance of all applications, including web applications, to dramatically increase\n * contrast.\n *\n * IE, Edge, and Firefox currently support this mode. Chrome does not support Windows High Contrast\n * Mode. This service does not detect high-contrast mode as added by the Chrome \"High Contrast\"\n * browser extension.\n */\nclass HighContrastModeDetector {\n constructor(_platform, document) {\n this._platform = _platform;\n this._document = document;\n }\n /** Gets the current high-contrast-mode for the page. */\n getHighContrastMode() {\n if (!this._platform.isBrowser) {\n return 0 /* NONE */;\n }\n // Create a test element with an arbitrary background-color that is neither black nor\n // white; high-contrast mode will coerce the color to either black or white. Also ensure that\n // appending the test element to the DOM does not affect layout by absolutely positioning it\n const testElement = this._document.createElement('div');\n testElement.style.backgroundColor = 'rgb(1,2,3)';\n testElement.style.position = 'absolute';\n this._document.body.appendChild(testElement);\n // Get the computed style for the background color, collapsing spaces to normalize between\n // browsers. Once we get this color, we no longer need the test element. Access the `window`\n // via the document so we can fake it in tests. Note that we have extra null checks, because\n // this logic will likely run during app bootstrap and throwing can break the entire app.\n const documentWindow = this._document.defaultView || window;\n const computedStyle = documentWindow && documentWindow.getComputedStyle\n ? documentWindow.getComputedStyle(testElement)\n : null;\n const computedColor = ((computedStyle && computedStyle.backgroundColor) || '').replace(/ /g, '');\n testElement.remove();\n switch (computedColor) {\n case 'rgb(0,0,0)':\n return 2 /* WHITE_ON_BLACK */;\n case 'rgb(255,255,255)':\n return 1 /* BLACK_ON_WHITE */;\n }\n return 0 /* NONE */;\n }\n /** Applies CSS classes indicating high-contrast mode to document body (browser-only). */\n _applyBodyHighContrastModeCssClasses() {\n if (!this._hasCheckedHighContrastMode && this._platform.isBrowser && this._document.body) {\n const bodyClasses = this._document.body.classList;\n // IE11 doesn't support `classList` operations with multiple arguments\n bodyClasses.remove(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n bodyClasses.remove(BLACK_ON_WHITE_CSS_CLASS);\n bodyClasses.remove(WHITE_ON_BLACK_CSS_CLASS);\n this._hasCheckedHighContrastMode = true;\n const mode = this.getHighContrastMode();\n if (mode === 1 /* BLACK_ON_WHITE */) {\n bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n bodyClasses.add(BLACK_ON_WHITE_CSS_CLASS);\n }\n else if (mode === 2 /* WHITE_ON_BLACK */) {\n bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n bodyClasses.add(WHITE_ON_BLACK_CSS_CLASS);\n }\n }\n }\n}\nHighContrastModeDetector.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: HighContrastModeDetector, deps: [{ token: i1.Platform }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nHighContrastModeDetector.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: HighContrastModeDetector, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: HighContrastModeDetector, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.Platform }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass A11yModule {\n constructor(highContrastModeDetector) {\n highContrastModeDetector._applyBodyHighContrastModeCssClasses();\n }\n}\nA11yModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: A11yModule, deps: [{ token: HighContrastModeDetector }], target: i0.ɵɵFactoryTarget.NgModule });\nA11yModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: A11yModule, declarations: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus], imports: [PlatformModule, ObserversModule], exports: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus] });\nA11yModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: A11yModule, imports: [[PlatformModule, ObserversModule]] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: A11yModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [PlatformModule, ObserversModule],\n declarations: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus],\n exports: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus],\n }]\n }], ctorParameters: function () { return [{ type: HighContrastModeDetector }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { A11yModule, ActiveDescendantKeyManager, AriaDescriber, CDK_DESCRIBEDBY_HOST_ATTRIBUTE, CDK_DESCRIBEDBY_ID_PREFIX, CdkAriaLive, CdkMonitorFocus, CdkTrapFocus, ConfigurableFocusTrap, ConfigurableFocusTrapFactory, EventListenerFocusTrapInertStrategy, FOCUS_MONITOR_DEFAULT_OPTIONS, FOCUS_TRAP_INERT_STRATEGY, FocusKeyManager, FocusMonitor, FocusTrap, FocusTrapFactory, HighContrastModeDetector, INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS, INPUT_MODALITY_DETECTOR_OPTIONS, InputModalityDetector, InteractivityChecker, IsFocusableConfig, LIVE_ANNOUNCER_DEFAULT_OPTIONS, LIVE_ANNOUNCER_ELEMENT_TOKEN, LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY, ListKeyManager, LiveAnnouncer, MESSAGES_CONTAINER_ID, isFakeMousedownFromScreenReader, isFakeTouchstartFromScreenReader };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/5ba4da4d1bf064eae6eb9ece04754c6f.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/5ba4da4d1bf064eae6eb9ece04754c6f.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/5ba4da4d1bf064eae6eb9ece04754c6f.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, Input, Output, ViewChild, ContentChildren, NgModule } from '@angular/core';\nimport * as i1 from '@angular/common';\nimport { CommonModule } from '@angular/common';\nimport * as i3 from 'primeng/api';\nimport { PrimeTemplate, SharedModule } from 'primeng/api';\nimport { UniqueComponentId, ZIndexUtils } from 'primeng/utils';\nimport * as i2 from 'primeng/ripple';\nimport { RippleModule } from 'primeng/ripple';\nimport { trigger, state, style, transition, animate, query, animateChild } from '@angular/animations';\nconst _c0 = [\"container\"];\n\nconst _c1 = function (a0, a1, a2, a3) {\n return {\n \"pi-info-circle\": a0,\n \"pi-exclamation-triangle\": a1,\n \"pi-times-circle\": a2,\n \"pi-check\": a3\n };\n};\n\nfunction ToastItem_ng_container_3_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainerStart(0);\n i0.ɵɵelement(1, \"span\", 6);\n i0.ɵɵelementStart(2, \"div\", 7);\n i0.ɵɵelementStart(3, \"div\", 8);\n i0.ɵɵtext(4);\n i0.ɵɵelementEnd();\n i0.ɵɵelementStart(5, \"div\", 9);\n i0.ɵɵtext(6);\n i0.ɵɵelementEnd();\n i0.ɵɵelementEnd();\n i0.ɵɵelementContainerEnd();\n }\n\n if (rf & 2) {\n const ctx_r1 = i0.ɵɵnextContext();\n i0.ɵɵadvance(1);\n i0.ɵɵclassMap(\"p-toast-message-icon pi\" + (ctx_r1.message.icon ? \" \" + ctx_r1.message.icon : \"\"));\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction4(5, _c1, ctx_r1.message.severity == \"info\", ctx_r1.message.severity == \"warn\", ctx_r1.message.severity == \"error\", ctx_r1.message.severity == \"success\"));\n i0.ɵɵadvance(3);\n i0.ɵɵtextInterpolate(ctx_r1.message.summary);\n i0.ɵɵadvance(2);\n i0.ɵɵtextInterpolate(ctx_r1.message.detail);\n }\n}\n\nfunction ToastItem_ng_container_4_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nfunction ToastItem_button_5_Template(rf, ctx) {\n if (rf & 1) {\n const _r5 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"button\", 10);\n i0.ɵɵlistener(\"click\", function ToastItem_button_5_Template_button_click_0_listener($event) {\n i0.ɵɵrestoreView(_r5);\n const ctx_r4 = i0.ɵɵnextContext();\n return ctx_r4.onCloseIconClick($event);\n })(\"keydown.enter\", function ToastItem_button_5_Template_button_keydown_enter_0_listener($event) {\n i0.ɵɵrestoreView(_r5);\n const ctx_r6 = i0.ɵɵnextContext();\n return ctx_r6.onCloseIconClick($event);\n });\n i0.ɵɵelement(1, \"span\", 11);\n i0.ɵɵelementEnd();\n }\n}\n\nconst _c2 = function (a0) {\n return [a0, \"p-toast-message\"];\n};\n\nconst _c3 = function (a0, a1, a2, a3) {\n return {\n showTransformParams: a0,\n hideTransformParams: a1,\n showTransitionParams: a2,\n hideTransitionParams: a3\n };\n};\n\nconst _c4 = function (a1) {\n return {\n value: \"visible\",\n params: a1\n };\n};\n\nconst _c5 = function (a0) {\n return {\n $implicit: a0\n };\n};\n\nfunction Toast_p_toastItem_2_Template(rf, ctx) {\n if (rf & 1) {\n const _r5 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"p-toastItem\", 3);\n i0.ɵɵlistener(\"onClose\", function Toast_p_toastItem_2_Template_p_toastItem_onClose_0_listener($event) {\n i0.ɵɵrestoreView(_r5);\n const ctx_r4 = i0.ɵɵnextContext();\n return ctx_r4.onMessageClose($event);\n })(\"@toastAnimation.start\", function Toast_p_toastItem_2_Template_p_toastItem_animation_toastAnimation_start_0_listener($event) {\n i0.ɵɵrestoreView(_r5);\n const ctx_r6 = i0.ɵɵnextContext();\n return ctx_r6.onAnimationStart($event);\n })(\"@toastAnimation.done\", function Toast_p_toastItem_2_Template_p_toastItem_animation_toastAnimation_done_0_listener($event) {\n i0.ɵɵrestoreView(_r5);\n const ctx_r7 = i0.ɵɵnextContext();\n return ctx_r7.onAnimationEnd($event);\n });\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const msg_r2 = ctx.$implicit;\n const i_r3 = ctx.index;\n const ctx_r1 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"message\", msg_r2)(\"index\", i_r3)(\"template\", ctx_r1.template)(\"@toastAnimation\", undefined)(\"showTransformOptions\", ctx_r1.showTransformOptions)(\"hideTransformOptions\", ctx_r1.hideTransformOptions)(\"showTransitionOptions\", ctx_r1.showTransitionOptions)(\"hideTransitionOptions\", ctx_r1.hideTransitionOptions);\n }\n}\n\nclass ToastItem {\n constructor(zone) {\n this.zone = zone;\n this.onClose = new EventEmitter();\n }\n\n ngAfterViewInit() {\n this.initTimeout();\n }\n\n initTimeout() {\n if (!this.message.sticky) {\n this.zone.runOutsideAngular(() => {\n this.timeout = setTimeout(() => {\n this.onClose.emit({\n index: this.index,\n message: this.message\n });\n }, this.message.life || 3000);\n });\n }\n }\n\n clearTimeout() {\n if (this.timeout) {\n clearTimeout(this.timeout);\n this.timeout = null;\n }\n }\n\n onMouseEnter() {\n this.clearTimeout();\n }\n\n onMouseLeave() {\n this.initTimeout();\n }\n\n onCloseIconClick(event) {\n this.clearTimeout();\n this.onClose.emit({\n index: this.index,\n message: this.message\n });\n event.preventDefault();\n }\n\n ngOnDestroy() {\n this.clearTimeout();\n }\n\n}\n\nToastItem.ɵfac = function ToastItem_Factory(t) {\n return new (t || ToastItem)(i0.ɵɵdirectiveInject(i0.NgZone));\n};\n\nToastItem.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: ToastItem,\n selectors: [[\"p-toastItem\"]],\n viewQuery: function ToastItem_Query(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵviewQuery(_c0, 5);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.containerViewChild = _t.first);\n }\n },\n hostAttrs: [1, \"p-element\"],\n inputs: {\n message: \"message\",\n index: \"index\",\n template: \"template\",\n showTransformOptions: \"showTransformOptions\",\n hideTransformOptions: \"hideTransformOptions\",\n showTransitionOptions: \"showTransitionOptions\",\n hideTransitionOptions: \"hideTransitionOptions\"\n },\n outputs: {\n onClose: \"onClose\"\n },\n decls: 6,\n vars: 21,\n consts: [[3, \"ngClass\", \"mouseenter\", \"mouseleave\"], [\"container\", \"\"], [\"role\", \"alert\", \"aria-live\", \"assertive\", \"aria-atomic\", \"true\", 1, \"p-toast-message-content\", 3, \"ngClass\"], [4, \"ngIf\"], [4, \"ngTemplateOutlet\", \"ngTemplateOutletContext\"], [\"type\", \"button\", \"class\", \"p-toast-icon-close p-link\", \"pRipple\", \"\", 3, \"click\", \"keydown.enter\", 4, \"ngIf\"], [3, \"ngClass\"], [1, \"p-toast-message-text\"], [1, \"p-toast-summary\"], [1, \"p-toast-detail\"], [\"type\", \"button\", \"pRipple\", \"\", 1, \"p-toast-icon-close\", \"p-link\", 3, \"click\", \"keydown.enter\"], [1, \"p-toast-icon-close-icon\", \"pi\", \"pi-times\"]],\n template: function ToastItem_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 0, 1);\n i0.ɵɵlistener(\"mouseenter\", function ToastItem_Template_div_mouseenter_0_listener() {\n return ctx.onMouseEnter();\n })(\"mouseleave\", function ToastItem_Template_div_mouseleave_0_listener() {\n return ctx.onMouseLeave();\n });\n i0.ɵɵelementStart(2, \"div\", 2);\n i0.ɵɵtemplate(3, ToastItem_ng_container_3_Template, 7, 10, \"ng-container\", 3);\n i0.ɵɵtemplate(4, ToastItem_ng_container_4_Template, 1, 0, \"ng-container\", 4);\n i0.ɵɵtemplate(5, ToastItem_button_5_Template, 2, 0, \"button\", 5);\n i0.ɵɵelementEnd();\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n i0.ɵɵclassMap(ctx.message.styleClass);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction1(10, _c2, \"p-toast-message-\" + ctx.message.severity))(\"@messageState\", i0.ɵɵpureFunction1(17, _c4, i0.ɵɵpureFunction4(12, _c3, ctx.showTransformOptions, ctx.hideTransformOptions, ctx.showTransitionOptions, ctx.hideTransitionOptions)));\n i0.ɵɵattribute(\"id\", ctx.message.id);\n i0.ɵɵadvance(2);\n i0.ɵɵproperty(\"ngClass\", ctx.message.contentStyleClass);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", !ctx.template);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx.template)(\"ngTemplateOutletContext\", i0.ɵɵpureFunction1(19, _c5, ctx.message));\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", ctx.message.closable !== false);\n }\n },\n directives: [i1.NgClass, i1.NgIf, i1.NgTemplateOutlet, i2.Ripple],\n encapsulation: 2,\n data: {\n animation: [trigger('messageState', [state('visible', style({\n transform: 'translateY(0)',\n opacity: 1\n })), transition('void => *', [style({\n transform: '{{showTransformParams}}',\n opacity: 0\n }), animate('{{showTransitionParams}}')]), transition('* => void', [animate('{{hideTransitionParams}}', style({\n height: 0,\n opacity: 0,\n transform: '{{hideTransformParams}}'\n }))])])]\n },\n changeDetection: 0\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ToastItem, [{\n type: Component,\n args: [{\n selector: 'p-toastItem',\n template: `\n
\n `, animations: [\n trigger('toastAnimation', [\n transition(':enter, :leave', [\n query('@*', animateChild())\n ])\n ])\n ], changeDetection: ChangeDetectionStrategy.OnPush, encapsulation: ViewEncapsulation.None, host: {\n 'class': 'p-element'\n }, styles: [\".p-toast{position:fixed;width:25rem}.p-toast-message{overflow:hidden}.p-toast-message-content{display:flex;align-items:flex-start}.p-toast-message-text{flex:1 1 auto}.p-toast-top-right{top:20px;right:20px}.p-toast-top-left{top:20px;left:20px}.p-toast-bottom-left{bottom:20px;left:20px}.p-toast-bottom-right{bottom:20px;right:20px}.p-toast-top-center{top:20px;left:50%;transform:translate(-50%)}.p-toast-bottom-center{bottom:20px;left:50%;transform:translate(-50%)}.p-toast-center{left:50%;top:50%;min-width:20vw;transform:translate(-50%,-50%)}.p-toast-icon-close{display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.p-toast-icon-close.p-link{cursor:pointer}\\n\"] }]\n }], ctorParameters: function () { return [{ type: i3.MessageService }, { type: i0.ChangeDetectorRef }, { type: i3.PrimeNGConfig }]; }, propDecorators: { key: [{\n type: Input\n }], autoZIndex: [{\n type: Input\n }], baseZIndex: [{\n type: Input\n }], style: [{\n type: Input\n }], styleClass: [{\n type: Input\n }], position: [{\n type: Input\n }], preventOpenDuplicates: [{\n type: Input\n }], preventDuplicates: [{\n type: Input\n }], showTransformOptions: [{\n type: Input\n }], hideTransformOptions: [{\n type: Input\n }], showTransitionOptions: [{\n type: Input\n }], hideTransitionOptions: [{\n type: Input\n }], breakpoints: [{\n type: Input\n }], onClose: [{\n type: Output\n }], containerViewChild: [{\n type: ViewChild,\n args: ['container']\n }], templates: [{\n type: ContentChildren,\n args: [PrimeTemplate]\n }] } });\nclass ToastModule {\n}\nToastModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ToastModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nToastModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ToastModule, declarations: [Toast, ToastItem], imports: [CommonModule, RippleModule], exports: [Toast, SharedModule] });\nToastModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ToastModule, imports: [[CommonModule, RippleModule], SharedModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ToastModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule, RippleModule],\n exports: [Toast, SharedModule],\n declarations: [Toast, ToastItem]\n }]\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Toast, ToastItem, ToastModule };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/7ee093b06a84f61d8e496977c9a25700.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/7ee093b06a84f61d8e496977c9a25700.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/7ee093b06a84f61d8e496977c9a25700.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { Injectable, Component, Directive, Input, NgModule } from '@angular/core';\nimport { Subject } from 'rxjs';\nimport { ObjectUtils } from 'primeng/utils';\nimport { CommonModule } from '@angular/common';\nconst _c0 = [\"*\"];\n\nclass FilterMatchMode {}\n\nFilterMatchMode.STARTS_WITH = 'startsWith';\nFilterMatchMode.CONTAINS = 'contains';\nFilterMatchMode.NOT_CONTAINS = 'notContains';\nFilterMatchMode.ENDS_WITH = 'endsWith';\nFilterMatchMode.EQUALS = 'equals';\nFilterMatchMode.NOT_EQUALS = 'notEquals';\nFilterMatchMode.IN = 'in';\nFilterMatchMode.LESS_THAN = 'lt';\nFilterMatchMode.LESS_THAN_OR_EQUAL_TO = 'lte';\nFilterMatchMode.GREATER_THAN = 'gt';\nFilterMatchMode.GREATER_THAN_OR_EQUAL_TO = 'gte';\nFilterMatchMode.BETWEEN = 'between';\nFilterMatchMode.IS = 'is';\nFilterMatchMode.IS_NOT = 'isNot';\nFilterMatchMode.BEFORE = 'before';\nFilterMatchMode.AFTER = 'after';\nFilterMatchMode.DATE_IS = 'dateIs';\nFilterMatchMode.DATE_IS_NOT = 'dateIsNot';\nFilterMatchMode.DATE_BEFORE = 'dateBefore';\nFilterMatchMode.DATE_AFTER = 'dateAfter';\n\nclass PrimeNGConfig {\n constructor() {\n this.ripple = false;\n this.filterMatchModeOptions = {\n text: [FilterMatchMode.STARTS_WITH, FilterMatchMode.CONTAINS, FilterMatchMode.NOT_CONTAINS, FilterMatchMode.ENDS_WITH, FilterMatchMode.EQUALS, FilterMatchMode.NOT_EQUALS],\n numeric: [FilterMatchMode.EQUALS, FilterMatchMode.NOT_EQUALS, FilterMatchMode.LESS_THAN, FilterMatchMode.LESS_THAN_OR_EQUAL_TO, FilterMatchMode.GREATER_THAN, FilterMatchMode.GREATER_THAN_OR_EQUAL_TO],\n date: [FilterMatchMode.DATE_IS, FilterMatchMode.DATE_IS_NOT, FilterMatchMode.DATE_BEFORE, FilterMatchMode.DATE_AFTER]\n };\n this.translation = {\n startsWith: 'Starts with',\n contains: 'Contains',\n notContains: 'Not contains',\n endsWith: 'Ends with',\n equals: 'Equals',\n notEquals: 'Not equals',\n noFilter: 'No Filter',\n lt: 'Less than',\n lte: 'Less than or equal to',\n gt: 'Greater than',\n gte: 'Greater than or equal to',\n is: 'Is',\n isNot: 'Is not',\n before: 'Before',\n after: 'After',\n dateIs: 'Date is',\n dateIsNot: 'Date is not',\n dateBefore: 'Date is before',\n dateAfter: 'Date is after',\n clear: 'Clear',\n apply: 'Apply',\n matchAll: 'Match All',\n matchAny: 'Match Any',\n addRule: 'Add Rule',\n removeRule: 'Remove Rule',\n accept: 'Yes',\n reject: 'No',\n choose: 'Choose',\n upload: 'Upload',\n cancel: 'Cancel',\n dayNames: [\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"],\n dayNamesShort: [\"Sun\", \"Mon\", \"Tue\", \"Wed\", \"Thu\", \"Fri\", \"Sat\"],\n dayNamesMin: [\"Su\", \"Mo\", \"Tu\", \"We\", \"Th\", \"Fr\", \"Sa\"],\n monthNames: [\"January\", \"February\", \"March\", \"April\", \"May\", \"June\", \"July\", \"August\", \"September\", \"October\", \"November\", \"December\"],\n monthNamesShort: [\"Jan\", \"Feb\", \"Mar\", \"Apr\", \"May\", \"Jun\", \"Jul\", \"Aug\", \"Sep\", \"Oct\", \"Nov\", \"Dec\"],\n dateFormat: 'mm/dd/yy',\n today: 'Today',\n weekHeader: 'Wk',\n weak: 'Weak',\n medium: 'Medium',\n strong: 'Strong',\n passwordPrompt: 'Enter a password',\n emptyMessage: 'No results found',\n emptyFilterMessage: 'No results found'\n };\n this.zIndex = {\n modal: 1100,\n overlay: 1000,\n menu: 1000,\n tooltip: 1100\n };\n this.translationSource = new Subject();\n this.translationObserver = this.translationSource.asObservable();\n }\n\n getTranslation(key) {\n return this.translation[key];\n }\n\n setTranslation(value) {\n this.translation = { ...this.translation,\n ...value\n };\n this.translationSource.next(this.translation);\n }\n\n}\n\nPrimeNGConfig.ɵfac = function PrimeNGConfig_Factory(t) {\n return new (t || PrimeNGConfig)();\n};\n\nPrimeNGConfig.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: PrimeNGConfig,\n factory: PrimeNGConfig.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(PrimeNGConfig, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], null, null);\n})();\n\nclass TranslationKeys {}\n\nTranslationKeys.STARTS_WITH = 'startsWith';\nTranslationKeys.CONTAINS = 'contains';\nTranslationKeys.NOT_CONTAINS = 'notContains';\nTranslationKeys.ENDS_WITH = 'endsWith';\nTranslationKeys.EQUALS = 'equals';\nTranslationKeys.NOT_EQUALS = 'notEquals';\nTranslationKeys.NO_FILTER = 'noFilter';\nTranslationKeys.LT = 'lt';\nTranslationKeys.LTE = 'lte';\nTranslationKeys.GT = 'gt';\nTranslationKeys.GTE = 'gte';\nTranslationKeys.IS = 'is';\nTranslationKeys.IS_NOT = 'isNot';\nTranslationKeys.BEFORE = 'before';\nTranslationKeys.AFTER = 'after';\nTranslationKeys.CLEAR = 'clear';\nTranslationKeys.APPLY = 'apply';\nTranslationKeys.MATCH_ALL = 'matchAll';\nTranslationKeys.MATCH_ANY = 'matchAny';\nTranslationKeys.ADD_RULE = 'addRule';\nTranslationKeys.REMOVE_RULE = 'removeRule';\nTranslationKeys.ACCEPT = 'accept';\nTranslationKeys.REJECT = 'reject';\nTranslationKeys.CHOOSE = 'choose';\nTranslationKeys.UPLOAD = 'upload';\nTranslationKeys.CANCEL = 'cancel';\nTranslationKeys.DAY_NAMES = 'dayNames';\nTranslationKeys.DAY_NAMES_SHORT = 'dayNamesShort';\nTranslationKeys.DAY_NAMES_MIN = 'dayNamesMin';\nTranslationKeys.MONTH_NAMES = 'monthNames';\nTranslationKeys.MONTH_NAMES_SHORT = 'monthNamesShort';\nTranslationKeys.TODAY = 'today';\nTranslationKeys.WEEK_HEADER = 'weekHeader';\nTranslationKeys.WEAK = 'weak';\nTranslationKeys.MEDIUM = 'medium';\nTranslationKeys.STRONG = 'strong';\nTranslationKeys.PASSWORD_PROMPT = 'passwordPrompt';\nTranslationKeys.EMPTY_MESSAGE = 'emptyMessage';\nTranslationKeys.EMPTY_FILTER_MESSAGE = 'emptyFilterMessage';\nvar ConfirmEventType;\n\n(function (ConfirmEventType) {\n ConfirmEventType[ConfirmEventType[\"ACCEPT\"] = 0] = \"ACCEPT\";\n ConfirmEventType[ConfirmEventType[\"REJECT\"] = 1] = \"REJECT\";\n ConfirmEventType[ConfirmEventType[\"CANCEL\"] = 2] = \"CANCEL\";\n})(ConfirmEventType || (ConfirmEventType = {}));\n\nclass ConfirmationService {\n constructor() {\n this.requireConfirmationSource = new Subject();\n this.acceptConfirmationSource = new Subject();\n this.requireConfirmation$ = this.requireConfirmationSource.asObservable();\n this.accept = this.acceptConfirmationSource.asObservable();\n }\n\n confirm(confirmation) {\n this.requireConfirmationSource.next(confirmation);\n return this;\n }\n\n close() {\n this.requireConfirmationSource.next(null);\n return this;\n }\n\n onAccept() {\n this.acceptConfirmationSource.next(null);\n }\n\n}\n\nConfirmationService.ɵfac = function ConfirmationService_Factory(t) {\n return new (t || ConfirmationService)();\n};\n\nConfirmationService.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ConfirmationService,\n factory: ConfirmationService.ɵfac\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ConfirmationService, [{\n type: Injectable\n }], null, null);\n})();\n\nclass FilterService {\n constructor() {\n this.filters = {\n startsWith: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || filter.trim() === '') {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.slice(0, filterValue.length) === filterValue;\n },\n contains: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || typeof filter === 'string' && filter.trim() === '') {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.indexOf(filterValue) !== -1;\n },\n notContains: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || typeof filter === 'string' && filter.trim() === '') {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.indexOf(filterValue) === -1;\n },\n endsWith: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || filter.trim() === '') {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.indexOf(filterValue, stringValue.length - filterValue.length) !== -1;\n },\n equals: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || typeof filter === 'string' && filter.trim() === '') {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n if (value.getTime && filter.getTime) return value.getTime() === filter.getTime();else return ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale) == ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n },\n notEquals: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || typeof filter === 'string' && filter.trim() === '') {\n return false;\n }\n\n if (value === undefined || value === null) {\n return true;\n }\n\n if (value.getTime && filter.getTime) return value.getTime() !== filter.getTime();else return ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale) != ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n },\n in: (value, filter) => {\n if (filter === undefined || filter === null || filter.length === 0) {\n return true;\n }\n\n for (let i = 0; i < filter.length; i++) {\n if (ObjectUtils.equals(value, filter[i])) {\n return true;\n }\n }\n\n return false;\n },\n between: (value, filter) => {\n if (filter == null || filter[0] == null || filter[1] == null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n if (value.getTime) return filter[0].getTime() <= value.getTime() && value.getTime() <= filter[1].getTime();else return filter[0] <= value && value <= filter[1];\n },\n lt: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n if (value.getTime && filter.getTime) return value.getTime() < filter.getTime();else return value < filter;\n },\n lte: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n if (value.getTime && filter.getTime) return value.getTime() <= filter.getTime();else return value <= filter;\n },\n gt: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n if (value.getTime && filter.getTime) return value.getTime() > filter.getTime();else return value > filter;\n },\n gte: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n if (value.getTime && filter.getTime) return value.getTime() >= filter.getTime();else return value >= filter;\n },\n is: (value, filter, filterLocale) => {\n return this.filters.equals(value, filter, filterLocale);\n },\n isNot: (value, filter, filterLocale) => {\n return this.filters.notEquals(value, filter, filterLocale);\n },\n before: (value, filter, filterLocale) => {\n return this.filters.lt(value, filter, filterLocale);\n },\n after: (value, filter, filterLocale) => {\n return this.filters.gt(value, filter, filterLocale);\n },\n dateIs: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n return value.toDateString() === filter.toDateString();\n },\n dateIsNot: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n return value.toDateString() !== filter.toDateString();\n },\n dateBefore: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n return value.getTime() < filter.getTime();\n },\n dateAfter: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n\n if (value === undefined || value === null) {\n return false;\n }\n\n return value.getTime() > filter.getTime();\n }\n };\n }\n\n filter(value, fields, filterValue, filterMatchMode, filterLocale) {\n let filteredItems = [];\n\n if (value) {\n for (let item of value) {\n for (let field of fields) {\n let fieldValue = ObjectUtils.resolveFieldData(item, field);\n\n if (this.filters[filterMatchMode](fieldValue, filterValue, filterLocale)) {\n filteredItems.push(item);\n break;\n }\n }\n }\n }\n\n return filteredItems;\n }\n\n register(rule, fn) {\n this.filters[rule] = fn;\n }\n\n}\n\nFilterService.ɵfac = function FilterService_Factory(t) {\n return new (t || FilterService)();\n};\n\nFilterService.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: FilterService,\n factory: FilterService.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(FilterService, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], null, null);\n})();\n\nclass ContextMenuService {\n constructor() {\n this.activeItemKeyChange = new Subject();\n this.activeItemKeyChange$ = this.activeItemKeyChange.asObservable();\n }\n\n changeKey(key) {\n this.activeItemKey = key;\n this.activeItemKeyChange.next(this.activeItemKey);\n }\n\n reset() {\n this.activeItemKey = null;\n this.activeItemKeyChange.next(this.activeItemKey);\n }\n\n}\n\nContextMenuService.ɵfac = function ContextMenuService_Factory(t) {\n return new (t || ContextMenuService)();\n};\n\nContextMenuService.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ContextMenuService,\n factory: ContextMenuService.ɵfac\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ContextMenuService, [{\n type: Injectable\n }], null, null);\n})();\n\nclass MessageService {\n constructor() {\n this.messageSource = new Subject();\n this.clearSource = new Subject();\n this.messageObserver = this.messageSource.asObservable();\n this.clearObserver = this.clearSource.asObservable();\n }\n\n add(message) {\n if (message) {\n this.messageSource.next(message);\n }\n }\n\n addAll(messages) {\n if (messages && messages.length) {\n this.messageSource.next(messages);\n }\n }\n\n clear(key) {\n this.clearSource.next(key || null);\n }\n\n}\n\nMessageService.ɵfac = function MessageService_Factory(t) {\n return new (t || MessageService)();\n};\n\nMessageService.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: MessageService,\n factory: MessageService.ɵfac\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MessageService, [{\n type: Injectable\n }], null, null);\n})();\n\nclass OverlayService {\n constructor() {\n this.clickSource = new Subject();\n this.clickObservable = this.clickSource.asObservable();\n }\n\n add(event) {\n if (event) {\n this.clickSource.next(event);\n }\n }\n\n}\n\nOverlayService.ɵfac = function OverlayService_Factory(t) {\n return new (t || OverlayService)();\n};\n\nOverlayService.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: OverlayService,\n factory: OverlayService.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(OverlayService, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], null, null);\n})();\n\nclass PrimeIcons {}\n\nPrimeIcons.ALIGN_CENTER = 'pi pi-align-center';\nPrimeIcons.ALIGN_JUSTIFY = 'pi pi-align-justify';\nPrimeIcons.ALIGN_LEFT = 'pi pi-align-left';\nPrimeIcons.ALIGN_RIGHT = 'pi pi-align-right';\nPrimeIcons.AMAZON = 'pi pi-amazon';\nPrimeIcons.ANDROID = 'pi pi-android';\nPrimeIcons.ANGLE_DOUBLE_DOWN = 'pi pi-angle-double-down';\nPrimeIcons.ANGLE_DOUBLE_LEFT = 'pi pi-angle-double-left';\nPrimeIcons.ANGLE_DOUBLE_RIGHT = 'pi pi-angle-double-right';\nPrimeIcons.ANGLE_DOUBLE_UP = 'pi pi-angle-double-up';\nPrimeIcons.ANGLE_DOWN = 'pi pi-angle-down';\nPrimeIcons.ANGLE_LEFT = 'pi pi-angle-left';\nPrimeIcons.ANGLE_RIGHT = 'pi pi-angle-right';\nPrimeIcons.ANGLE_UP = 'pi pi-angle-up';\nPrimeIcons.APPLE = 'pi pi-apple';\nPrimeIcons.ARROW_CIRCLE_DOWN = 'pi pi-arrow-circle-down';\nPrimeIcons.ARROW_CIRCLE_LEFT = 'pi pi-arrow-circle-left';\nPrimeIcons.ARROW_CIRCLE_RIGHT = 'pi pi-arrow-circle-right';\nPrimeIcons.ARROW_CIRCLE_UP = 'pi pi-arrow-circle-up';\nPrimeIcons.ARROW_DOWN = 'pi pi-arrow-down';\nPrimeIcons.ARROW_DOWN_LEFT = 'pi pi-arrow-down-left';\nPrimeIcons.ARROW_DOWN_RIGHT = 'pi pi-arrow-down-right';\nPrimeIcons.ARROW_LEFT = 'pi pi-arrow-left';\nPrimeIcons.ARROW_RIGHT = 'pi pi-arrow-right';\nPrimeIcons.ARROW_UP = 'pi pi-arrow-up';\nPrimeIcons.ARROW_UP_LEFT = 'pi pi-arrow-up-left';\nPrimeIcons.ARROW_UP_RIGHT = 'pi pi-arrow-up-right';\nPrimeIcons.ARROW_H = 'pi pi-arrow-h';\nPrimeIcons.ARROW_V = 'pi pi-arrow-v';\nPrimeIcons.AT = 'pi pi-at';\nPrimeIcons.BACKWARD = 'pi pi-backward';\nPrimeIcons.BAN = 'pi pi-ban';\nPrimeIcons.BARS = 'pi pi-bars';\nPrimeIcons.BELL = 'pi pi-bell';\nPrimeIcons.BOLT = 'pi pi-bolt';\nPrimeIcons.BOOK = 'pi pi-book';\nPrimeIcons.BOOKMARK = 'pi pi-bookmark';\nPrimeIcons.BOOKMARK_FILL = 'pi pi-bookmark-fill';\nPrimeIcons.BOX = 'pi pi-box';\nPrimeIcons.BRIEFCASE = 'pi pi-briefcase';\nPrimeIcons.BUILDING = 'pi pi-building';\nPrimeIcons.CALENDAR = 'pi pi-calendar';\nPrimeIcons.CALENDAR_MINUS = 'pi pi-calendar-minus';\nPrimeIcons.CALENDAR_PLUS = 'pi pi-calendar-plus';\nPrimeIcons.CALENDAR_TIMES = 'pi pi-calendar-times';\nPrimeIcons.CAMERA = 'pi pi-camera';\nPrimeIcons.CAR = 'pi pi-car';\nPrimeIcons.CARET_DOWN = 'pi pi-caret-down';\nPrimeIcons.CARET_LEFT = 'pi pi-caret-left';\nPrimeIcons.CARET_RIGHT = 'pi pi-caret-right';\nPrimeIcons.CARET_UP = 'pi pi-caret-up';\nPrimeIcons.CHART_BAR = 'pi pi-chart-bar';\nPrimeIcons.CHART_LINE = 'pi pi-chart-line';\nPrimeIcons.CHART_PIE = 'pi pi-chart-pie';\nPrimeIcons.CHECK = 'pi pi-check';\nPrimeIcons.CHECK_CIRCLE = 'pi pi-check-circle';\nPrimeIcons.CHECK_SQUARE = 'pi pi-check-square';\nPrimeIcons.CHEVRON_CIRCLE_DOWN = 'pi pi-chevron-circle-down';\nPrimeIcons.CHEVRON_CIRCLE_LEFT = 'pi pi-chevron-circle-left';\nPrimeIcons.CHEVRON_CIRCLE_RIGHT = 'pi pi-chevron-circle-right';\nPrimeIcons.CHEVRON_CIRCLE_UP = 'pi pi-chevron-circle-up';\nPrimeIcons.CHEVRON_DOWN = 'pi pi-chevron-down';\nPrimeIcons.CHEVRON_LEFT = 'pi pi-chevron-left';\nPrimeIcons.CHEVRON_RIGHT = 'pi pi-chevron-right';\nPrimeIcons.CHEVRON_UP = 'pi pi-chevron-up';\nPrimeIcons.CIRCLE = 'pi pi-circle';\nPrimeIcons.CIRCLE_FILL = 'pi pi-circle-fill';\nPrimeIcons.CLOCK = 'pi pi-clock';\nPrimeIcons.CLONE = 'pi pi-clone';\nPrimeIcons.CLOUD = 'pi pi-cloud';\nPrimeIcons.CLOUD_DOWNLOAD = 'pi pi-cloud-download';\nPrimeIcons.CLOUD_UPLOAD = 'pi pi-cloud-upload';\nPrimeIcons.CODE = 'pi pi-code';\nPrimeIcons.COG = 'pi pi-cog';\nPrimeIcons.COMMENT = 'pi pi-comment';\nPrimeIcons.COMMENTS = 'pi pi-comments';\nPrimeIcons.COMPASS = 'pi pi-compass';\nPrimeIcons.COPY = 'pi pi-copy';\nPrimeIcons.CREDIT_CARD = 'pi pi-credit-card';\nPrimeIcons.DATABASE = 'pi pi-database';\nPrimeIcons.DESKTOP = 'pi pi-desktop';\nPrimeIcons.DIRECTIONS = 'pi pi-directions';\nPrimeIcons.DIRECTIONS_ALT = 'pi pi-directions-alt';\nPrimeIcons.DISCORD = 'pi pi-discord';\nPrimeIcons.DOLLAR = 'pi pi-dollar';\nPrimeIcons.DOWNLOAD = 'pi pi-download';\nPrimeIcons.EJECT = 'pi pi-eject';\nPrimeIcons.ELLIPSIS_H = 'pi pi-ellipsis-h';\nPrimeIcons.ELLIPSIS_V = 'pi pi-ellipsis-v';\nPrimeIcons.ENVELOPE = 'pi pi-envelope';\nPrimeIcons.EURO = 'pi pi-euro';\nPrimeIcons.EXCLAMATION_CIRCLE = 'pi pi-exclamation-circle';\nPrimeIcons.EXCLAMATION_TRIANGLE = 'pi pi-exclamation-triangle';\nPrimeIcons.EXTERNAL_LINK = 'pi pi-external-link';\nPrimeIcons.EYE = 'pi pi-eye';\nPrimeIcons.EYE_SLASH = 'pi pi-eye-slash';\nPrimeIcons.FACEBOOK = 'pi pi-facebook';\nPrimeIcons.FAST_BACKWARD = 'pi pi-fast-backward';\nPrimeIcons.FAST_FORWARD = 'pi pi-fast-forward';\nPrimeIcons.FILE = 'pi pi-file';\nPrimeIcons.FILE_EXCEL = 'pi pi-file-excel';\nPrimeIcons.FILE_PDF = 'pi pi-file-pdf';\nPrimeIcons.FILTER = 'pi pi-filter';\nPrimeIcons.FILTER_FILL = 'pi pi-filter-fill';\nPrimeIcons.FILTER_SLASH = 'pi pi-filter-slash';\nPrimeIcons.FLAG = 'pi pi-flag';\nPrimeIcons.FLAG_FILL = 'pi pi-flag-fill';\nPrimeIcons.FOLDER = 'pi pi-folder';\nPrimeIcons.FOLDER_OPEN = 'pi pi-folder-open';\nPrimeIcons.FORWARD = 'pi pi-forward';\nPrimeIcons.GITHUB = 'pi pi-github';\nPrimeIcons.GLOBE = 'pi pi-globe';\nPrimeIcons.GOOGLE = 'pi pi-google';\nPrimeIcons.HASHTAG = 'pi pi-hashtag';\nPrimeIcons.HEART = 'pi pi-heart';\nPrimeIcons.HEART_FILL = 'pi pi-heart-fill';\nPrimeIcons.HISTORY = 'pi pi-history';\nPrimeIcons.HOME = 'pi pi-home';\nPrimeIcons.ID_CARD = 'pi pi-id-card';\nPrimeIcons.IMAGE = 'pi pi-image';\nPrimeIcons.IMAGES = 'pi pi-images';\nPrimeIcons.INBOX = 'pi pi-inbox';\nPrimeIcons.INFO = 'pi pi-info';\nPrimeIcons.INFO_CIRCLE = 'pi pi-info-circle';\nPrimeIcons.INSTAGRAM = 'pi pi-instagram';\nPrimeIcons.KEY = 'pi pi-key';\nPrimeIcons.LINK = 'pi pi-link';\nPrimeIcons.LINKEDIN = 'pi pi-linkedin';\nPrimeIcons.LIST = 'pi pi-list';\nPrimeIcons.LOCK = 'pi pi-lock';\nPrimeIcons.LOCK_OPEN = 'pi pi-lock-open';\nPrimeIcons.MAP = 'pi pi-map';\nPrimeIcons.MAP_MARKER = 'pi pi-map-marker';\nPrimeIcons.MICROSOFT = 'pi pi-microsoft';\nPrimeIcons.MINUS = 'pi pi-minus';\nPrimeIcons.MINUS_CIRCLE = 'pi pi-minus-circle';\nPrimeIcons.MOBILE = 'pi pi-mobile';\nPrimeIcons.MONEY_BILL = 'pi pi-money-bill';\nPrimeIcons.MOON = 'pi pi-moon';\nPrimeIcons.PALETTE = 'pi pi-palette';\nPrimeIcons.PAPERCLIP = 'pi pi-paperclip';\nPrimeIcons.PAUSE = 'pi pi-pause';\nPrimeIcons.PAYPAL = 'pi pi-paypal';\nPrimeIcons.PENCIL = 'pi pi-pencil';\nPrimeIcons.PERCENTAGE = 'pi pi-percentage';\nPrimeIcons.PHONE = 'pi pi-phone';\nPrimeIcons.PLAY = 'pi pi-play';\nPrimeIcons.PLUS = 'pi pi-plus';\nPrimeIcons.PLUS_CIRCLE = 'pi pi-plus-circle';\nPrimeIcons.POUND = 'pi pi-pound';\nPrimeIcons.POWER_OFF = 'pi pi-power-off';\nPrimeIcons.PRIME = 'pi pi-prime';\nPrimeIcons.PRINT = 'pi pi-print';\nPrimeIcons.QRCODE = 'pi pi-qrcode';\nPrimeIcons.QUESTION = 'pi pi-question';\nPrimeIcons.QUESTION_CIRCLE = 'pi pi-question-circle';\nPrimeIcons.REDDIT = 'pi pi-reddit';\nPrimeIcons.REFRESH = 'pi pi-refresh';\nPrimeIcons.REPLAY = 'pi pi-replay';\nPrimeIcons.REPLY = 'pi pi-reply';\nPrimeIcons.SAVE = 'pi pi-save';\nPrimeIcons.SEARCH = 'pi pi-search';\nPrimeIcons.SEARCH_MINUS = 'pi pi-search-minus';\nPrimeIcons.SEARCH_PLUS = 'pi pi-search-plus';\nPrimeIcons.SEND = 'pi pi-send';\nPrimeIcons.SERVER = 'pi pi-server';\nPrimeIcons.SHARE_ALT = 'pi pi-share-alt';\nPrimeIcons.SHIELD = 'pi pi-shield';\nPrimeIcons.SHOPPING_BAG = 'pi pi-shopping-bag';\nPrimeIcons.SHOPPING_CART = 'pi pi-shopping-cart';\nPrimeIcons.SIGN_IN = 'pi pi-sign-in';\nPrimeIcons.SIGN_OUT = 'pi pi-sign-out';\nPrimeIcons.SITEMAP = 'pi pi-sitemap';\nPrimeIcons.SLACK = 'pi pi-slack';\nPrimeIcons.SLIDERS_H = 'pi pi-sliders-h';\nPrimeIcons.SLIDERS_V = 'pi pi-sliders-v';\nPrimeIcons.SORT = 'pi pi-sort';\nPrimeIcons.SORT_ALPHA_DOWN = 'pi pi-sort-alpha-down';\nPrimeIcons.SORT_ALPHA_ALT_DOWN = 'pi pi-sort-alpha-alt-down';\nPrimeIcons.SORT_ALPHA_UP = 'pi pi-sort-alpha-up';\nPrimeIcons.SORT_ALPHA_ALT_UP = 'pi pi-sort-alpha-alt-up';\nPrimeIcons.SORT_ALT = 'pi pi-sort-alt';\nPrimeIcons.SORT_ALT_SLASH = 'pi pi-sort-slash';\nPrimeIcons.SORT_AMOUNT_DOWN = 'pi pi-sort-amount-down';\nPrimeIcons.SORT_AMOUNT_DOWN_ALT = 'pi pi-sort-amount-down-alt';\nPrimeIcons.SORT_AMOUNT_UP = 'pi pi-sort-amount-up';\nPrimeIcons.SORT_AMOUNT_UP_ALT = 'pi pi-sort-amount-up-alt';\nPrimeIcons.SORT_DOWN = 'pi pi-sort-down';\nPrimeIcons.SORT_NUMERIC_DOWN = 'pi pi-sort-numeric-down';\nPrimeIcons.SORT_NUMERIC_ALT_DOWN = 'pi pi-sort-numeric-alt-down';\nPrimeIcons.SORT_NUMERIC_UP = 'pi pi-sort-numeric-up';\nPrimeIcons.SORT_NUMERIC_ALT_UP = 'pi pi-sort-numeric-alt-up';\nPrimeIcons.SORT_UP = 'pi pi-sort-up';\nPrimeIcons.SPINNER = 'pi pi-spinner';\nPrimeIcons.STAR = 'pi pi-star';\nPrimeIcons.STAR_FILL = 'pi pi-star-fill';\nPrimeIcons.STEP_BACKWARD = 'pi pi-step-backward';\nPrimeIcons.STEP_BACKWARD_ALT = 'pi pi-step-backward-alt';\nPrimeIcons.STEP_FORWARD = 'pi pi-step-forward';\nPrimeIcons.STEP_FORWARD_ALT = 'pi pi-step-forward-alt';\nPrimeIcons.STOP = 'pi pi-stop';\nPrimeIcons.STOP_CIRCLE = 'pi pi-stop-circle';\nPrimeIcons.SUN = 'pi pi-sun';\nPrimeIcons.SYNC = 'pi pi-sync';\nPrimeIcons.TABLE = 'pi pi-table';\nPrimeIcons.TABLET = 'pi pi-tablet';\nPrimeIcons.TAG = 'pi pi-tag';\nPrimeIcons.TAGS = 'pi pi-tags';\nPrimeIcons.TELEGRAM = 'pi pi-telegram';\nPrimeIcons.TH_LARGE = 'pi pi-th-large';\nPrimeIcons.THUMBS_DOWN = 'pi pi-thumbs-down';\nPrimeIcons.THUMBS_UP = 'pi pi-thumbs-up';\nPrimeIcons.TICKET = 'pi pi-ticket';\nPrimeIcons.TIMES = 'pi pi-times';\nPrimeIcons.TIMES_CIRCLE = 'pi pi-times-circle';\nPrimeIcons.TRASH = 'pi pi-trash';\nPrimeIcons.TWITTER = 'pi pi-twitter';\nPrimeIcons.UNDO = 'pi pi-undo';\nPrimeIcons.UNLOCK = 'pi pi-unlock';\nPrimeIcons.UPLOAD = 'pi pi-upload';\nPrimeIcons.USER = 'pi pi-user';\nPrimeIcons.USER_EDIT = 'pi pi-user-edit';\nPrimeIcons.USER_MINUS = 'pi pi-user-minus';\nPrimeIcons.USER_PLUS = 'pi pi-user-plus';\nPrimeIcons.USERS = 'pi pi-users';\nPrimeIcons.VIDEO = 'pi pi-video';\nPrimeIcons.VIMEO = 'pi pi-vimeo';\nPrimeIcons.VOLUME_DOWN = 'pi pi-volume-down';\nPrimeIcons.VOLUME_OFF = 'pi pi-volume-off';\nPrimeIcons.VOLUME_UP = 'pi pi-volume-up';\nPrimeIcons.WALLET = 'pi pi-wallet';\nPrimeIcons.WHATSAPP = 'pi pi-whatsapp';\nPrimeIcons.WIFI = 'pi pi-wifi';\nPrimeIcons.WINDOW_MAXIMIZE = 'pi pi-window-maximize';\nPrimeIcons.WINDOW_MINIMIZE = 'pi pi-window-minimize';\nPrimeIcons.YOUTUBE = 'pi pi-youtube';\n\nclass FilterOperator {}\n\nFilterOperator.AND = 'and';\nFilterOperator.OR = 'or';\n\nclass Header {}\n\nHeader.ɵfac = function Header_Factory(t) {\n return new (t || Header)();\n};\n\nHeader.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: Header,\n selectors: [[\"p-header\"]],\n ngContentSelectors: _c0,\n decls: 1,\n vars: 0,\n template: function Header_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef();\n i0.ɵɵprojection(0);\n }\n },\n encapsulation: 2\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Header, [{\n type: Component,\n args: [{\n selector: 'p-header',\n template: ''\n }]\n }], null, null);\n})();\n\nclass Footer {}\n\nFooter.ɵfac = function Footer_Factory(t) {\n return new (t || Footer)();\n};\n\nFooter.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: Footer,\n selectors: [[\"p-footer\"]],\n ngContentSelectors: _c0,\n decls: 1,\n vars: 0,\n template: function Footer_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef();\n i0.ɵɵprojection(0);\n }\n },\n encapsulation: 2\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Footer, [{\n type: Component,\n args: [{\n selector: 'p-footer',\n template: ''\n }]\n }], null, null);\n})();\n\nclass PrimeTemplate {\n constructor(template) {\n this.template = template;\n }\n\n getType() {\n return this.name;\n }\n\n}\n\nPrimeTemplate.ɵfac = function PrimeTemplate_Factory(t) {\n return new (t || PrimeTemplate)(i0.ɵɵdirectiveInject(i0.TemplateRef));\n};\n\nPrimeTemplate.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: PrimeTemplate,\n selectors: [[\"\", \"pTemplate\", \"\"]],\n inputs: {\n type: \"type\",\n name: [\"pTemplate\", \"name\"]\n }\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(PrimeTemplate, [{\n type: Directive,\n args: [{\n selector: '[pTemplate]',\n host: {}\n }]\n }], function () {\n return [{\n type: i0.TemplateRef\n }];\n }, {\n type: [{\n type: Input\n }],\n name: [{\n type: Input,\n args: ['pTemplate']\n }]\n });\n})();\n\nclass SharedModule {}\n\nSharedModule.ɵfac = function SharedModule_Factory(t) {\n return new (t || SharedModule)();\n};\n\nSharedModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: SharedModule\n});\nSharedModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n imports: [[CommonModule]]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(SharedModule, [{\n type: NgModule,\n args: [{\n imports: [CommonModule],\n exports: [Header, Footer, PrimeTemplate],\n declarations: [Header, Footer, PrimeTemplate]\n }]\n }], null, null);\n})();\n\nclass TreeDragDropService {\n constructor() {\n this.dragStartSource = new Subject();\n this.dragStopSource = new Subject();\n this.dragStart$ = this.dragStartSource.asObservable();\n this.dragStop$ = this.dragStopSource.asObservable();\n }\n\n startDrag(event) {\n this.dragStartSource.next(event);\n }\n\n stopDrag(event) {\n this.dragStopSource.next(event);\n }\n\n}\n\nTreeDragDropService.ɵfac = function TreeDragDropService_Factory(t) {\n return new (t || TreeDragDropService)();\n};\n\nTreeDragDropService.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: TreeDragDropService,\n factory: TreeDragDropService.ɵfac\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(TreeDragDropService, [{\n type: Injectable\n }], null, null);\n})();\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { ConfirmEventType, ConfirmationService, ContextMenuService, FilterMatchMode, FilterOperator, FilterService, Footer, Header, MessageService, OverlayService, PrimeIcons, PrimeNGConfig, PrimeTemplate, SharedModule, TranslationKeys, TreeDragDropService 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* as i0 from '@angular/core';\nimport { Injectable, Component, Directive, Input, NgModule } from '@angular/core';\nimport { Subject } from 'rxjs';\nimport { ObjectUtils } from 'primeng/utils';\nimport { CommonModule } from '@angular/common';\n\nclass FilterMatchMode {\n}\nFilterMatchMode.STARTS_WITH = 'startsWith';\nFilterMatchMode.CONTAINS = 'contains';\nFilterMatchMode.NOT_CONTAINS = 'notContains';\nFilterMatchMode.ENDS_WITH = 'endsWith';\nFilterMatchMode.EQUALS = 'equals';\nFilterMatchMode.NOT_EQUALS = 'notEquals';\nFilterMatchMode.IN = 'in';\nFilterMatchMode.LESS_THAN = 'lt';\nFilterMatchMode.LESS_THAN_OR_EQUAL_TO = 'lte';\nFilterMatchMode.GREATER_THAN = 'gt';\nFilterMatchMode.GREATER_THAN_OR_EQUAL_TO = 'gte';\nFilterMatchMode.BETWEEN = 'between';\nFilterMatchMode.IS = 'is';\nFilterMatchMode.IS_NOT = 'isNot';\nFilterMatchMode.BEFORE = 'before';\nFilterMatchMode.AFTER = 'after';\nFilterMatchMode.DATE_IS = 'dateIs';\nFilterMatchMode.DATE_IS_NOT = 'dateIsNot';\nFilterMatchMode.DATE_BEFORE = 'dateBefore';\nFilterMatchMode.DATE_AFTER = 'dateAfter';\n\nclass PrimeNGConfig {\n constructor() {\n this.ripple = false;\n this.filterMatchModeOptions = {\n text: [\n FilterMatchMode.STARTS_WITH,\n FilterMatchMode.CONTAINS,\n FilterMatchMode.NOT_CONTAINS,\n FilterMatchMode.ENDS_WITH,\n FilterMatchMode.EQUALS,\n FilterMatchMode.NOT_EQUALS\n ],\n numeric: [\n FilterMatchMode.EQUALS,\n FilterMatchMode.NOT_EQUALS,\n FilterMatchMode.LESS_THAN,\n FilterMatchMode.LESS_THAN_OR_EQUAL_TO,\n FilterMatchMode.GREATER_THAN,\n FilterMatchMode.GREATER_THAN_OR_EQUAL_TO\n ],\n date: [\n FilterMatchMode.DATE_IS,\n FilterMatchMode.DATE_IS_NOT,\n FilterMatchMode.DATE_BEFORE,\n FilterMatchMode.DATE_AFTER\n ]\n };\n this.translation = {\n startsWith: 'Starts with',\n contains: 'Contains',\n notContains: 'Not contains',\n endsWith: 'Ends with',\n equals: 'Equals',\n notEquals: 'Not equals',\n noFilter: 'No Filter',\n lt: 'Less than',\n lte: 'Less than or equal to',\n gt: 'Greater than',\n gte: 'Greater than or equal to',\n is: 'Is',\n isNot: 'Is not',\n before: 'Before',\n after: 'After',\n dateIs: 'Date is',\n dateIsNot: 'Date is not',\n dateBefore: 'Date is before',\n dateAfter: 'Date is after',\n clear: 'Clear',\n apply: 'Apply',\n matchAll: 'Match All',\n matchAny: 'Match Any',\n addRule: 'Add Rule',\n removeRule: 'Remove Rule',\n accept: 'Yes',\n reject: 'No',\n choose: 'Choose',\n upload: 'Upload',\n cancel: 'Cancel',\n dayNames: [\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"],\n dayNamesShort: [\"Sun\", \"Mon\", \"Tue\", \"Wed\", \"Thu\", \"Fri\", \"Sat\"],\n dayNamesMin: [\"Su\", \"Mo\", \"Tu\", \"We\", \"Th\", \"Fr\", \"Sa\"],\n monthNames: [\"January\", \"February\", \"March\", \"April\", \"May\", \"June\", \"July\", \"August\", \"September\", \"October\", \"November\", \"December\"],\n monthNamesShort: [\"Jan\", \"Feb\", \"Mar\", \"Apr\", \"May\", \"Jun\", \"Jul\", \"Aug\", \"Sep\", \"Oct\", \"Nov\", \"Dec\"],\n dateFormat: 'mm/dd/yy',\n today: 'Today',\n weekHeader: 'Wk',\n weak: 'Weak',\n medium: 'Medium',\n strong: 'Strong',\n passwordPrompt: 'Enter a password',\n emptyMessage: 'No results found',\n emptyFilterMessage: 'No results found'\n };\n this.zIndex = {\n modal: 1100,\n overlay: 1000,\n menu: 1000,\n tooltip: 1100\n };\n this.translationSource = new Subject();\n this.translationObserver = this.translationSource.asObservable();\n }\n getTranslation(key) {\n return this.translation[key];\n }\n setTranslation(value) {\n this.translation = { ...this.translation, ...value };\n this.translationSource.next(this.translation);\n }\n}\nPrimeNGConfig.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: PrimeNGConfig, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nPrimeNGConfig.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: PrimeNGConfig, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: PrimeNGConfig, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }] });\n\nclass TranslationKeys {\n}\nTranslationKeys.STARTS_WITH = 'startsWith';\nTranslationKeys.CONTAINS = 'contains';\nTranslationKeys.NOT_CONTAINS = 'notContains';\nTranslationKeys.ENDS_WITH = 'endsWith';\nTranslationKeys.EQUALS = 'equals';\nTranslationKeys.NOT_EQUALS = 'notEquals';\nTranslationKeys.NO_FILTER = 'noFilter';\nTranslationKeys.LT = 'lt';\nTranslationKeys.LTE = 'lte';\nTranslationKeys.GT = 'gt';\nTranslationKeys.GTE = 'gte';\nTranslationKeys.IS = 'is';\nTranslationKeys.IS_NOT = 'isNot';\nTranslationKeys.BEFORE = 'before';\nTranslationKeys.AFTER = 'after';\nTranslationKeys.CLEAR = 'clear';\nTranslationKeys.APPLY = 'apply';\nTranslationKeys.MATCH_ALL = 'matchAll';\nTranslationKeys.MATCH_ANY = 'matchAny';\nTranslationKeys.ADD_RULE = 'addRule';\nTranslationKeys.REMOVE_RULE = 'removeRule';\nTranslationKeys.ACCEPT = 'accept';\nTranslationKeys.REJECT = 'reject';\nTranslationKeys.CHOOSE = 'choose';\nTranslationKeys.UPLOAD = 'upload';\nTranslationKeys.CANCEL = 'cancel';\nTranslationKeys.DAY_NAMES = 'dayNames';\nTranslationKeys.DAY_NAMES_SHORT = 'dayNamesShort';\nTranslationKeys.DAY_NAMES_MIN = 'dayNamesMin';\nTranslationKeys.MONTH_NAMES = 'monthNames';\nTranslationKeys.MONTH_NAMES_SHORT = 'monthNamesShort';\nTranslationKeys.TODAY = 'today';\nTranslationKeys.WEEK_HEADER = 'weekHeader';\nTranslationKeys.WEAK = 'weak';\nTranslationKeys.MEDIUM = 'medium';\nTranslationKeys.STRONG = 'strong';\nTranslationKeys.PASSWORD_PROMPT = 'passwordPrompt';\nTranslationKeys.EMPTY_MESSAGE = 'emptyMessage';\nTranslationKeys.EMPTY_FILTER_MESSAGE = 'emptyFilterMessage';\n\nvar ConfirmEventType;\n(function (ConfirmEventType) {\n ConfirmEventType[ConfirmEventType[\"ACCEPT\"] = 0] = \"ACCEPT\";\n ConfirmEventType[ConfirmEventType[\"REJECT\"] = 1] = \"REJECT\";\n ConfirmEventType[ConfirmEventType[\"CANCEL\"] = 2] = \"CANCEL\";\n})(ConfirmEventType || (ConfirmEventType = {}));\n\nclass ConfirmationService {\n constructor() {\n this.requireConfirmationSource = new Subject();\n this.acceptConfirmationSource = new Subject();\n this.requireConfirmation$ = this.requireConfirmationSource.asObservable();\n this.accept = this.acceptConfirmationSource.asObservable();\n }\n confirm(confirmation) {\n this.requireConfirmationSource.next(confirmation);\n return this;\n }\n close() {\n this.requireConfirmationSource.next(null);\n return this;\n }\n onAccept() {\n this.acceptConfirmationSource.next(null);\n }\n}\nConfirmationService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ConfirmationService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nConfirmationService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ConfirmationService });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ConfirmationService, decorators: [{\n type: Injectable\n }] });\n\nclass FilterService {\n constructor() {\n this.filters = {\n startsWith: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || filter.trim() === '') {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.slice(0, filterValue.length) === filterValue;\n },\n contains: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || (typeof filter === 'string' && filter.trim() === '')) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.indexOf(filterValue) !== -1;\n },\n notContains: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || (typeof filter === 'string' && filter.trim() === '')) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.indexOf(filterValue) === -1;\n },\n endsWith: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || filter.trim() === '') {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n let filterValue = ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n let stringValue = ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale);\n return stringValue.indexOf(filterValue, stringValue.length - filterValue.length) !== -1;\n },\n equals: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || (typeof filter === 'string' && filter.trim() === '')) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n if (value.getTime && filter.getTime)\n return value.getTime() === filter.getTime();\n else\n return ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale) == ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n },\n notEquals: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null || (typeof filter === 'string' && filter.trim() === '')) {\n return false;\n }\n if (value === undefined || value === null) {\n return true;\n }\n if (value.getTime && filter.getTime)\n return value.getTime() !== filter.getTime();\n else\n return ObjectUtils.removeAccents(value.toString()).toLocaleLowerCase(filterLocale) != ObjectUtils.removeAccents(filter.toString()).toLocaleLowerCase(filterLocale);\n },\n in: (value, filter) => {\n if (filter === undefined || filter === null || filter.length === 0) {\n return true;\n }\n for (let i = 0; i < filter.length; i++) {\n if (ObjectUtils.equals(value, filter[i])) {\n return true;\n }\n }\n return false;\n },\n between: (value, filter) => {\n if (filter == null || filter[0] == null || filter[1] == null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n if (value.getTime)\n return filter[0].getTime() <= value.getTime() && value.getTime() <= filter[1].getTime();\n else\n return filter[0] <= value && value <= filter[1];\n },\n lt: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n if (value.getTime && filter.getTime)\n return value.getTime() < filter.getTime();\n else\n return value < filter;\n },\n lte: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n if (value.getTime && filter.getTime)\n return value.getTime() <= filter.getTime();\n else\n return value <= filter;\n },\n gt: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n if (value.getTime && filter.getTime)\n return value.getTime() > filter.getTime();\n else\n return value > filter;\n },\n gte: (value, filter, filterLocale) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n if (value.getTime && filter.getTime)\n return value.getTime() >= filter.getTime();\n else\n return value >= filter;\n },\n is: (value, filter, filterLocale) => {\n return this.filters.equals(value, filter, filterLocale);\n },\n isNot: (value, filter, filterLocale) => {\n return this.filters.notEquals(value, filter, filterLocale);\n },\n before: (value, filter, filterLocale) => {\n return this.filters.lt(value, filter, filterLocale);\n },\n after: (value, filter, filterLocale) => {\n return this.filters.gt(value, filter, filterLocale);\n },\n dateIs: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n return value.toDateString() === filter.toDateString();\n },\n dateIsNot: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n return value.toDateString() !== filter.toDateString();\n },\n dateBefore: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n return value.getTime() < filter.getTime();\n },\n dateAfter: (value, filter) => {\n if (filter === undefined || filter === null) {\n return true;\n }\n if (value === undefined || value === null) {\n return false;\n }\n return value.getTime() > filter.getTime();\n }\n };\n }\n filter(value, fields, filterValue, filterMatchMode, filterLocale) {\n let filteredItems = [];\n if (value) {\n for (let item of value) {\n for (let field of fields) {\n let fieldValue = ObjectUtils.resolveFieldData(item, field);\n if (this.filters[filterMatchMode](fieldValue, filterValue, filterLocale)) {\n filteredItems.push(item);\n break;\n }\n }\n }\n }\n return filteredItems;\n }\n register(rule, fn) {\n this.filters[rule] = fn;\n }\n}\nFilterService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: FilterService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nFilterService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: FilterService, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: FilterService, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }] });\n\nclass ContextMenuService {\n constructor() {\n this.activeItemKeyChange = new Subject();\n this.activeItemKeyChange$ = this.activeItemKeyChange.asObservable();\n }\n changeKey(key) {\n this.activeItemKey = key;\n this.activeItemKeyChange.next(this.activeItemKey);\n }\n reset() {\n this.activeItemKey = null;\n this.activeItemKeyChange.next(this.activeItemKey);\n }\n}\nContextMenuService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ContextMenuService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nContextMenuService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ContextMenuService });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: ContextMenuService, decorators: [{\n type: Injectable\n }] });\n\nclass MessageService {\n constructor() {\n this.messageSource = new Subject();\n this.clearSource = new Subject();\n this.messageObserver = this.messageSource.asObservable();\n this.clearObserver = this.clearSource.asObservable();\n }\n add(message) {\n if (message) {\n this.messageSource.next(message);\n }\n }\n addAll(messages) {\n if (messages && messages.length) {\n this.messageSource.next(messages);\n }\n }\n clear(key) {\n this.clearSource.next(key || null);\n }\n}\nMessageService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: MessageService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nMessageService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: MessageService });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: MessageService, decorators: [{\n type: Injectable\n }] });\n\nclass OverlayService {\n constructor() {\n this.clickSource = new Subject();\n this.clickObservable = this.clickSource.asObservable();\n }\n add(event) {\n if (event) {\n this.clickSource.next(event);\n }\n }\n}\nOverlayService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: OverlayService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nOverlayService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: OverlayService, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: OverlayService, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }] });\n\nclass PrimeIcons {\n}\nPrimeIcons.ALIGN_CENTER = 'pi pi-align-center';\nPrimeIcons.ALIGN_JUSTIFY = 'pi pi-align-justify';\nPrimeIcons.ALIGN_LEFT = 'pi pi-align-left';\nPrimeIcons.ALIGN_RIGHT = 'pi pi-align-right';\nPrimeIcons.AMAZON = 'pi pi-amazon';\nPrimeIcons.ANDROID = 'pi pi-android';\nPrimeIcons.ANGLE_DOUBLE_DOWN = 'pi pi-angle-double-down';\nPrimeIcons.ANGLE_DOUBLE_LEFT = 'pi pi-angle-double-left';\nPrimeIcons.ANGLE_DOUBLE_RIGHT = 'pi pi-angle-double-right';\nPrimeIcons.ANGLE_DOUBLE_UP = 'pi pi-angle-double-up';\nPrimeIcons.ANGLE_DOWN = 'pi pi-angle-down';\nPrimeIcons.ANGLE_LEFT = 'pi pi-angle-left';\nPrimeIcons.ANGLE_RIGHT = 'pi pi-angle-right';\nPrimeIcons.ANGLE_UP = 'pi pi-angle-up';\nPrimeIcons.APPLE = 'pi pi-apple';\nPrimeIcons.ARROW_CIRCLE_DOWN = 'pi pi-arrow-circle-down';\nPrimeIcons.ARROW_CIRCLE_LEFT = 'pi pi-arrow-circle-left';\nPrimeIcons.ARROW_CIRCLE_RIGHT = 'pi pi-arrow-circle-right';\nPrimeIcons.ARROW_CIRCLE_UP = 'pi pi-arrow-circle-up';\nPrimeIcons.ARROW_DOWN = 'pi pi-arrow-down';\nPrimeIcons.ARROW_DOWN_LEFT = 'pi pi-arrow-down-left';\nPrimeIcons.ARROW_DOWN_RIGHT = 'pi pi-arrow-down-right';\nPrimeIcons.ARROW_LEFT = 'pi pi-arrow-left';\nPrimeIcons.ARROW_RIGHT = 'pi pi-arrow-right';\nPrimeIcons.ARROW_UP = 'pi pi-arrow-up';\nPrimeIcons.ARROW_UP_LEFT = 'pi pi-arrow-up-left';\nPrimeIcons.ARROW_UP_RIGHT = 'pi pi-arrow-up-right';\nPrimeIcons.ARROW_H = 'pi pi-arrow-h';\nPrimeIcons.ARROW_V = 'pi pi-arrow-v';\nPrimeIcons.AT = 'pi pi-at';\nPrimeIcons.BACKWARD = 'pi pi-backward';\nPrimeIcons.BAN = 'pi pi-ban';\nPrimeIcons.BARS = 'pi pi-bars';\nPrimeIcons.BELL = 'pi pi-bell';\nPrimeIcons.BOLT = 'pi pi-bolt';\nPrimeIcons.BOOK = 'pi pi-book';\nPrimeIcons.BOOKMARK = 'pi pi-bookmark';\nPrimeIcons.BOOKMARK_FILL = 'pi pi-bookmark-fill';\nPrimeIcons.BOX = 'pi pi-box';\nPrimeIcons.BRIEFCASE = 'pi pi-briefcase';\nPrimeIcons.BUILDING = 'pi pi-building';\nPrimeIcons.CALENDAR = 'pi pi-calendar';\nPrimeIcons.CALENDAR_MINUS = 'pi pi-calendar-minus';\nPrimeIcons.CALENDAR_PLUS = 'pi pi-calendar-plus';\nPrimeIcons.CALENDAR_TIMES = 'pi pi-calendar-times';\nPrimeIcons.CAMERA = 'pi pi-camera';\nPrimeIcons.CAR = 'pi pi-car';\nPrimeIcons.CARET_DOWN = 'pi pi-caret-down';\nPrimeIcons.CARET_LEFT = 'pi pi-caret-left';\nPrimeIcons.CARET_RIGHT = 'pi pi-caret-right';\nPrimeIcons.CARET_UP = 'pi pi-caret-up';\nPrimeIcons.CHART_BAR = 'pi pi-chart-bar';\nPrimeIcons.CHART_LINE = 'pi pi-chart-line';\nPrimeIcons.CHART_PIE = 'pi pi-chart-pie';\nPrimeIcons.CHECK = 'pi pi-check';\nPrimeIcons.CHECK_CIRCLE = 'pi pi-check-circle';\nPrimeIcons.CHECK_SQUARE = 'pi pi-check-square';\nPrimeIcons.CHEVRON_CIRCLE_DOWN = 'pi pi-chevron-circle-down';\nPrimeIcons.CHEVRON_CIRCLE_LEFT = 'pi pi-chevron-circle-left';\nPrimeIcons.CHEVRON_CIRCLE_RIGHT = 'pi pi-chevron-circle-right';\nPrimeIcons.CHEVRON_CIRCLE_UP = 'pi pi-chevron-circle-up';\nPrimeIcons.CHEVRON_DOWN = 'pi pi-chevron-down';\nPrimeIcons.CHEVRON_LEFT = 'pi pi-chevron-left';\nPrimeIcons.CHEVRON_RIGHT = 'pi pi-chevron-right';\nPrimeIcons.CHEVRON_UP = 'pi pi-chevron-up';\nPrimeIcons.CIRCLE = 'pi pi-circle';\nPrimeIcons.CIRCLE_FILL = 'pi pi-circle-fill';\nPrimeIcons.CLOCK = 'pi pi-clock';\nPrimeIcons.CLONE = 'pi pi-clone';\nPrimeIcons.CLOUD = 'pi pi-cloud';\nPrimeIcons.CLOUD_DOWNLOAD = 'pi pi-cloud-download';\nPrimeIcons.CLOUD_UPLOAD = 'pi pi-cloud-upload';\nPrimeIcons.CODE = 'pi pi-code';\nPrimeIcons.COG = 'pi pi-cog';\nPrimeIcons.COMMENT = 'pi pi-comment';\nPrimeIcons.COMMENTS = 'pi pi-comments';\nPrimeIcons.COMPASS = 'pi pi-compass';\nPrimeIcons.COPY = 'pi pi-copy';\nPrimeIcons.CREDIT_CARD = 'pi pi-credit-card';\nPrimeIcons.DATABASE = 'pi pi-database';\nPrimeIcons.DESKTOP = 'pi pi-desktop';\nPrimeIcons.DIRECTIONS = 'pi pi-directions';\nPrimeIcons.DIRECTIONS_ALT = 'pi pi-directions-alt';\nPrimeIcons.DISCORD = 'pi pi-discord';\nPrimeIcons.DOLLAR = 'pi pi-dollar';\nPrimeIcons.DOWNLOAD = 'pi pi-download';\nPrimeIcons.EJECT = 'pi pi-eject';\nPrimeIcons.ELLIPSIS_H = 'pi pi-ellipsis-h';\nPrimeIcons.ELLIPSIS_V = 'pi pi-ellipsis-v';\nPrimeIcons.ENVELOPE = 'pi pi-envelope';\nPrimeIcons.EURO = 'pi pi-euro';\nPrimeIcons.EXCLAMATION_CIRCLE = 'pi pi-exclamation-circle';\nPrimeIcons.EXCLAMATION_TRIANGLE = 'pi pi-exclamation-triangle';\nPrimeIcons.EXTERNAL_LINK = 'pi pi-external-link';\nPrimeIcons.EYE = 'pi pi-eye';\nPrimeIcons.EYE_SLASH = 'pi pi-eye-slash';\nPrimeIcons.FACEBOOK = 'pi pi-facebook';\nPrimeIcons.FAST_BACKWARD = 'pi pi-fast-backward';\nPrimeIcons.FAST_FORWARD = 'pi pi-fast-forward';\nPrimeIcons.FILE = 'pi pi-file';\nPrimeIcons.FILE_EXCEL = 'pi pi-file-excel';\nPrimeIcons.FILE_PDF = 'pi pi-file-pdf';\nPrimeIcons.FILTER = 'pi pi-filter';\nPrimeIcons.FILTER_FILL = 'pi pi-filter-fill';\nPrimeIcons.FILTER_SLASH = 'pi pi-filter-slash';\nPrimeIcons.FLAG = 'pi pi-flag';\nPrimeIcons.FLAG_FILL = 'pi pi-flag-fill';\nPrimeIcons.FOLDER = 'pi pi-folder';\nPrimeIcons.FOLDER_OPEN = 'pi pi-folder-open';\nPrimeIcons.FORWARD = 'pi pi-forward';\nPrimeIcons.GITHUB = 'pi pi-github';\nPrimeIcons.GLOBE = 'pi pi-globe';\nPrimeIcons.GOOGLE = 'pi pi-google';\nPrimeIcons.HASHTAG = 'pi pi-hashtag';\nPrimeIcons.HEART = 'pi pi-heart';\nPrimeIcons.HEART_FILL = 'pi pi-heart-fill';\nPrimeIcons.HISTORY = 'pi pi-history';\nPrimeIcons.HOME = 'pi pi-home';\nPrimeIcons.ID_CARD = 'pi pi-id-card';\nPrimeIcons.IMAGE = 'pi pi-image';\nPrimeIcons.IMAGES = 'pi pi-images';\nPrimeIcons.INBOX = 'pi pi-inbox';\nPrimeIcons.INFO = 'pi pi-info';\nPrimeIcons.INFO_CIRCLE = 'pi pi-info-circle';\nPrimeIcons.INSTAGRAM = 'pi pi-instagram';\nPrimeIcons.KEY = 'pi pi-key';\nPrimeIcons.LINK = 'pi pi-link';\nPrimeIcons.LINKEDIN = 'pi pi-linkedin';\nPrimeIcons.LIST = 'pi pi-list';\nPrimeIcons.LOCK = 'pi pi-lock';\nPrimeIcons.LOCK_OPEN = 'pi pi-lock-open';\nPrimeIcons.MAP = 'pi pi-map';\nPrimeIcons.MAP_MARKER = 'pi pi-map-marker';\nPrimeIcons.MICROSOFT = 'pi pi-microsoft';\nPrimeIcons.MINUS = 'pi pi-minus';\nPrimeIcons.MINUS_CIRCLE = 'pi pi-minus-circle';\nPrimeIcons.MOBILE = 'pi pi-mobile';\nPrimeIcons.MONEY_BILL = 'pi pi-money-bill';\nPrimeIcons.MOON = 'pi pi-moon';\nPrimeIcons.PALETTE = 'pi pi-palette';\nPrimeIcons.PAPERCLIP = 'pi pi-paperclip';\nPrimeIcons.PAUSE = 'pi pi-pause';\nPrimeIcons.PAYPAL = 'pi pi-paypal';\nPrimeIcons.PENCIL = 'pi pi-pencil';\nPrimeIcons.PERCENTAGE = 'pi pi-percentage';\nPrimeIcons.PHONE = 'pi pi-phone';\nPrimeIcons.PLAY = 'pi pi-play';\nPrimeIcons.PLUS = 'pi pi-plus';\nPrimeIcons.PLUS_CIRCLE = 'pi pi-plus-circle';\nPrimeIcons.POUND = 'pi pi-pound';\nPrimeIcons.POWER_OFF = 'pi pi-power-off';\nPrimeIcons.PRIME = 'pi pi-prime';\nPrimeIcons.PRINT = 'pi pi-print';\nPrimeIcons.QRCODE = 'pi pi-qrcode';\nPrimeIcons.QUESTION = 'pi pi-question';\nPrimeIcons.QUESTION_CIRCLE = 'pi pi-question-circle';\nPrimeIcons.REDDIT = 'pi pi-reddit';\nPrimeIcons.REFRESH = 'pi pi-refresh';\nPrimeIcons.REPLAY = 'pi pi-replay';\nPrimeIcons.REPLY = 'pi pi-reply';\nPrimeIcons.SAVE = 'pi pi-save';\nPrimeIcons.SEARCH = 'pi pi-search';\nPrimeIcons.SEARCH_MINUS = 'pi pi-search-minus';\nPrimeIcons.SEARCH_PLUS = 'pi pi-search-plus';\nPrimeIcons.SEND = 'pi pi-send';\nPrimeIcons.SERVER = 'pi pi-server';\nPrimeIcons.SHARE_ALT = 'pi pi-share-alt';\nPrimeIcons.SHIELD = 'pi pi-shield';\nPrimeIcons.SHOPPING_BAG = 'pi pi-shopping-bag';\nPrimeIcons.SHOPPING_CART = 'pi pi-shopping-cart';\nPrimeIcons.SIGN_IN = 'pi pi-sign-in';\nPrimeIcons.SIGN_OUT = 'pi pi-sign-out';\nPrimeIcons.SITEMAP = 'pi pi-sitemap';\nPrimeIcons.SLACK = 'pi pi-slack';\nPrimeIcons.SLIDERS_H = 'pi pi-sliders-h';\nPrimeIcons.SLIDERS_V = 'pi pi-sliders-v';\nPrimeIcons.SORT = 'pi pi-sort';\nPrimeIcons.SORT_ALPHA_DOWN = 'pi pi-sort-alpha-down';\nPrimeIcons.SORT_ALPHA_ALT_DOWN = 'pi pi-sort-alpha-alt-down';\nPrimeIcons.SORT_ALPHA_UP = 'pi pi-sort-alpha-up';\nPrimeIcons.SORT_ALPHA_ALT_UP = 'pi pi-sort-alpha-alt-up';\nPrimeIcons.SORT_ALT = 'pi pi-sort-alt';\nPrimeIcons.SORT_ALT_SLASH = 'pi pi-sort-slash';\nPrimeIcons.SORT_AMOUNT_DOWN = 'pi pi-sort-amount-down';\nPrimeIcons.SORT_AMOUNT_DOWN_ALT = 'pi pi-sort-amount-down-alt';\nPrimeIcons.SORT_AMOUNT_UP = 'pi pi-sort-amount-up';\nPrimeIcons.SORT_AMOUNT_UP_ALT = 'pi pi-sort-amount-up-alt';\nPrimeIcons.SORT_DOWN = 'pi pi-sort-down';\nPrimeIcons.SORT_NUMERIC_DOWN = 'pi pi-sort-numeric-down';\nPrimeIcons.SORT_NUMERIC_ALT_DOWN = 'pi pi-sort-numeric-alt-down';\nPrimeIcons.SORT_NUMERIC_UP = 'pi pi-sort-numeric-up';\nPrimeIcons.SORT_NUMERIC_ALT_UP = 'pi pi-sort-numeric-alt-up';\nPrimeIcons.SORT_UP = 'pi pi-sort-up';\nPrimeIcons.SPINNER = 'pi pi-spinner';\nPrimeIcons.STAR = 'pi pi-star';\nPrimeIcons.STAR_FILL = 'pi pi-star-fill';\nPrimeIcons.STEP_BACKWARD = 'pi pi-step-backward';\nPrimeIcons.STEP_BACKWARD_ALT = 'pi pi-step-backward-alt';\nPrimeIcons.STEP_FORWARD = 'pi pi-step-forward';\nPrimeIcons.STEP_FORWARD_ALT = 'pi pi-step-forward-alt';\nPrimeIcons.STOP = 'pi pi-stop';\nPrimeIcons.STOP_CIRCLE = 'pi pi-stop-circle';\nPrimeIcons.SUN = 'pi pi-sun';\nPrimeIcons.SYNC = 'pi pi-sync';\nPrimeIcons.TABLE = 'pi pi-table';\nPrimeIcons.TABLET = 'pi pi-tablet';\nPrimeIcons.TAG = 'pi pi-tag';\nPrimeIcons.TAGS = 'pi pi-tags';\nPrimeIcons.TELEGRAM = 'pi pi-telegram';\nPrimeIcons.TH_LARGE = 'pi pi-th-large';\nPrimeIcons.THUMBS_DOWN = 'pi pi-thumbs-down';\nPrimeIcons.THUMBS_UP = 'pi pi-thumbs-up';\nPrimeIcons.TICKET = 'pi pi-ticket';\nPrimeIcons.TIMES = 'pi pi-times';\nPrimeIcons.TIMES_CIRCLE = 'pi pi-times-circle';\nPrimeIcons.TRASH = 'pi pi-trash';\nPrimeIcons.TWITTER = 'pi pi-twitter';\nPrimeIcons.UNDO = 'pi pi-undo';\nPrimeIcons.UNLOCK = 'pi pi-unlock';\nPrimeIcons.UPLOAD = 'pi pi-upload';\nPrimeIcons.USER = 'pi pi-user';\nPrimeIcons.USER_EDIT = 'pi pi-user-edit';\nPrimeIcons.USER_MINUS = 'pi pi-user-minus';\nPrimeIcons.USER_PLUS = 'pi pi-user-plus';\nPrimeIcons.USERS = 'pi pi-users';\nPrimeIcons.VIDEO = 'pi pi-video';\nPrimeIcons.VIMEO = 'pi pi-vimeo';\nPrimeIcons.VOLUME_DOWN = 'pi pi-volume-down';\nPrimeIcons.VOLUME_OFF = 'pi pi-volume-off';\nPrimeIcons.VOLUME_UP = 'pi pi-volume-up';\nPrimeIcons.WALLET = 'pi pi-wallet';\nPrimeIcons.WHATSAPP = 'pi pi-whatsapp';\nPrimeIcons.WIFI = 'pi pi-wifi';\nPrimeIcons.WINDOW_MAXIMIZE = 'pi pi-window-maximize';\nPrimeIcons.WINDOW_MINIMIZE = 'pi pi-window-minimize';\nPrimeIcons.YOUTUBE = 'pi pi-youtube';\n\nclass FilterOperator {\n}\nFilterOperator.AND = 'and';\nFilterOperator.OR = 'or';\n\nclass Header {\n}\nHeader.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Header, deps: [], target: i0.ɵɵFactoryTarget.Component });\nHeader.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: \"12.0.0\", version: \"13.0.0\", type: Header, selector: \"p-header\", ngImport: i0, template: '', isInline: true });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Header, decorators: [{\n type: Component,\n args: [{\n selector: 'p-header',\n template: ''\n }]\n }] });\nclass Footer {\n}\nFooter.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Footer, deps: [], target: i0.ɵɵFactoryTarget.Component });\nFooter.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: \"12.0.0\", version: \"13.0.0\", type: Footer, selector: \"p-footer\", ngImport: i0, template: '', isInline: true });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Footer, decorators: [{\n type: Component,\n args: [{\n selector: 'p-footer',\n template: ''\n }]\n }] });\nclass PrimeTemplate {\n constructor(template) {\n this.template = template;\n }\n getType() {\n return this.name;\n }\n}\nPrimeTemplate.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: PrimeTemplate, deps: [{ token: i0.TemplateRef }], target: i0.ɵɵFactoryTarget.Directive });\nPrimeTemplate.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.0\", type: PrimeTemplate, selector: \"[pTemplate]\", inputs: { type: \"type\", name: [\"pTemplate\", \"name\"] }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: PrimeTemplate, decorators: [{\n type: Directive,\n args: [{\n selector: '[pTemplate]',\n host: {}\n }]\n }], ctorParameters: function () { return [{ type: i0.TemplateRef }]; }, propDecorators: { type: [{\n type: Input\n }], name: [{\n type: Input,\n args: ['pTemplate']\n }] } });\nclass SharedModule {\n}\nSharedModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: SharedModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nSharedModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: SharedModule, declarations: [Header, Footer, PrimeTemplate], imports: [CommonModule], exports: [Header, Footer, PrimeTemplate] });\nSharedModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: SharedModule, imports: [[CommonModule]] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: SharedModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule],\n exports: [Header, Footer, PrimeTemplate],\n declarations: [Header, Footer, PrimeTemplate]\n }]\n }] });\n\nclass TreeDragDropService {\n constructor() {\n this.dragStartSource = new Subject();\n this.dragStopSource = new Subject();\n this.dragStart$ = this.dragStartSource.asObservable();\n this.dragStop$ = this.dragStopSource.asObservable();\n }\n startDrag(event) {\n this.dragStartSource.next(event);\n }\n stopDrag(event) {\n this.dragStopSource.next(event);\n }\n}\nTreeDragDropService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TreeDragDropService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nTreeDragDropService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TreeDragDropService });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TreeDragDropService, decorators: [{\n type: Injectable\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ConfirmEventType, ConfirmationService, ContextMenuService, FilterMatchMode, FilterOperator, FilterService, Footer, Header, MessageService, OverlayService, PrimeIcons, PrimeNGConfig, PrimeTemplate, SharedModule, TranslationKeys, TreeDragDropService };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/8cee76f8008e87b3da2c721873b51a23.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/8cee76f8008e87b3da2c721873b51a23.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/8cee76f8008e87b3da2c721873b51a23.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import { coerceNumberProperty, coerceElement, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport * as i0 from '@angular/core';\nimport { InjectionToken, forwardRef, Directive, Input, Injectable, Optional, Inject, Component, ViewEncapsulation, ChangeDetectionStrategy, Output, ViewChild, SkipSelf, NgModule } from '@angular/core';\nimport { Subject, of, Observable, fromEvent, animationFrameScheduler, asapScheduler, Subscription, isObservable } from 'rxjs';\nimport { distinctUntilChanged, auditTime, filter, takeUntil, startWith, pairwise, switchMap, shareReplay } from 'rxjs/operators';\nimport * as i1 from '@angular/cdk/platform';\nimport { getRtlScrollAxisType, supportsScrollBehavior, PlatformModule } from '@angular/cdk/platform';\nimport { DOCUMENT } from '@angular/common';\nimport * as i2 from '@angular/cdk/bidi';\nimport { BidiModule } from '@angular/cdk/bidi';\nimport * as i2$1 from '@angular/cdk/collections';\nimport { isDataSource, ArrayDataSource, _VIEW_REPEATER_STRATEGY, _RecycleViewRepeaterStrategy } from '@angular/cdk/collections';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** The injection token used to specify the virtual scrolling strategy. */\n\nconst _c0 = [\"contentWrapper\"];\nconst _c1 = [\"*\"];\nconst VIRTUAL_SCROLL_STRATEGY = new InjectionToken('VIRTUAL_SCROLL_STRATEGY');\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Virtual scrolling strategy for lists with items of known fixed size. */\n\nclass FixedSizeVirtualScrollStrategy {\n /**\n * @param itemSize The size of the items in the virtually scrolling list.\n * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n */\n constructor(itemSize, minBufferPx, maxBufferPx) {\n this._scrolledIndexChange = new Subject();\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n\n this.scrolledIndexChange = this._scrolledIndexChange.pipe(distinctUntilChanged());\n /** The attached viewport. */\n\n this._viewport = null;\n this._itemSize = itemSize;\n this._minBufferPx = minBufferPx;\n this._maxBufferPx = maxBufferPx;\n }\n /**\n * Attaches this scroll strategy to a viewport.\n * @param viewport The viewport to attach this strategy to.\n */\n\n\n attach(viewport) {\n this._viewport = viewport;\n\n this._updateTotalContentSize();\n\n this._updateRenderedRange();\n }\n /** Detaches this scroll strategy from the currently attached viewport. */\n\n\n detach() {\n this._scrolledIndexChange.complete();\n\n this._viewport = null;\n }\n /**\n * Update the item size and buffer size.\n * @param itemSize The size of the items in the virtually scrolling list.\n * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n */\n\n\n updateItemAndBufferSize(itemSize, minBufferPx, maxBufferPx) {\n if (maxBufferPx < minBufferPx && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('CDK virtual scroll: maxBufferPx must be greater than or equal to minBufferPx');\n }\n\n this._itemSize = itemSize;\n this._minBufferPx = minBufferPx;\n this._maxBufferPx = maxBufferPx;\n\n this._updateTotalContentSize();\n\n this._updateRenderedRange();\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n\n\n onContentScrolled() {\n this._updateRenderedRange();\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n\n\n onDataLengthChanged() {\n this._updateTotalContentSize();\n\n this._updateRenderedRange();\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n\n\n onContentRendered() {\n /* no-op */\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n\n\n onRenderedOffsetChanged() {\n /* no-op */\n }\n /**\n * Scroll to the offset for the given index.\n * @param index The index of the element to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling.\n */\n\n\n scrollToIndex(index, behavior) {\n if (this._viewport) {\n this._viewport.scrollToOffset(index * this._itemSize, behavior);\n }\n }\n /** Update the viewport's total content size. */\n\n\n _updateTotalContentSize() {\n if (!this._viewport) {\n return;\n }\n\n this._viewport.setTotalContentSize(this._viewport.getDataLength() * this._itemSize);\n }\n /** Update the viewport's rendered range. */\n\n\n _updateRenderedRange() {\n if (!this._viewport) {\n return;\n }\n\n const renderedRange = this._viewport.getRenderedRange();\n\n const newRange = {\n start: renderedRange.start,\n end: renderedRange.end\n };\n\n const viewportSize = this._viewport.getViewportSize();\n\n const dataLength = this._viewport.getDataLength();\n\n let scrollOffset = this._viewport.measureScrollOffset(); // Prevent NaN as result when dividing by zero.\n\n\n let firstVisibleIndex = this._itemSize > 0 ? scrollOffset / this._itemSize : 0; // If user scrolls to the bottom of the list and data changes to a smaller list\n\n if (newRange.end > dataLength) {\n // We have to recalculate the first visible index based on new data length and viewport size.\n const maxVisibleItems = Math.ceil(viewportSize / this._itemSize);\n const newVisibleIndex = Math.max(0, Math.min(firstVisibleIndex, dataLength - maxVisibleItems)); // If first visible index changed we must update scroll offset to handle start/end buffers\n // Current range must also be adjusted to cover the new position (bottom of new list).\n\n if (firstVisibleIndex != newVisibleIndex) {\n firstVisibleIndex = newVisibleIndex;\n scrollOffset = newVisibleIndex * this._itemSize;\n newRange.start = Math.floor(firstVisibleIndex);\n }\n\n newRange.end = Math.max(0, Math.min(dataLength, newRange.start + maxVisibleItems));\n }\n\n const startBuffer = scrollOffset - newRange.start * this._itemSize;\n\n if (startBuffer < this._minBufferPx && newRange.start != 0) {\n const expandStart = Math.ceil((this._maxBufferPx - startBuffer) / this._itemSize);\n newRange.start = Math.max(0, newRange.start - expandStart);\n newRange.end = Math.min(dataLength, Math.ceil(firstVisibleIndex + (viewportSize + this._minBufferPx) / this._itemSize));\n } else {\n const endBuffer = newRange.end * this._itemSize - (scrollOffset + viewportSize);\n\n if (endBuffer < this._minBufferPx && newRange.end != dataLength) {\n const expandEnd = Math.ceil((this._maxBufferPx - endBuffer) / this._itemSize);\n\n if (expandEnd > 0) {\n newRange.end = Math.min(dataLength, newRange.end + expandEnd);\n newRange.start = Math.max(0, Math.floor(firstVisibleIndex - this._minBufferPx / this._itemSize));\n }\n }\n }\n\n this._viewport.setRenderedRange(newRange);\n\n this._viewport.setRenderedContentOffset(this._itemSize * newRange.start);\n\n this._scrolledIndexChange.next(Math.floor(firstVisibleIndex));\n }\n\n}\n/**\n * Provider factory for `FixedSizeVirtualScrollStrategy` that simply extracts the already created\n * `FixedSizeVirtualScrollStrategy` from the given directive.\n * @param fixedSizeDir The instance of `CdkFixedSizeVirtualScroll` to extract the\n * `FixedSizeVirtualScrollStrategy` from.\n */\n\n\nfunction _fixedSizeVirtualScrollStrategyFactory(fixedSizeDir) {\n return fixedSizeDir._scrollStrategy;\n}\n/** A virtual scroll strategy that supports fixed-size items. */\n\n\nclass CdkFixedSizeVirtualScroll {\n constructor() {\n this._itemSize = 20;\n this._minBufferPx = 100;\n this._maxBufferPx = 200;\n /** The scroll strategy used by this directive. */\n\n this._scrollStrategy = new FixedSizeVirtualScrollStrategy(this.itemSize, this.minBufferPx, this.maxBufferPx);\n }\n /** The size of the items in the list (in pixels). */\n\n\n get itemSize() {\n return this._itemSize;\n }\n\n set itemSize(value) {\n this._itemSize = coerceNumberProperty(value);\n }\n /**\n * The minimum amount of buffer rendered beyond the viewport (in pixels).\n * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.\n */\n\n\n get minBufferPx() {\n return this._minBufferPx;\n }\n\n set minBufferPx(value) {\n this._minBufferPx = coerceNumberProperty(value);\n }\n /**\n * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.\n */\n\n\n get maxBufferPx() {\n return this._maxBufferPx;\n }\n\n set maxBufferPx(value) {\n this._maxBufferPx = coerceNumberProperty(value);\n }\n\n ngOnChanges() {\n this._scrollStrategy.updateItemAndBufferSize(this.itemSize, this.minBufferPx, this.maxBufferPx);\n }\n\n}\n\nCdkFixedSizeVirtualScroll.ɵfac = function CdkFixedSizeVirtualScroll_Factory(t) {\n return new (t || CdkFixedSizeVirtualScroll)();\n};\n\nCdkFixedSizeVirtualScroll.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkFixedSizeVirtualScroll,\n selectors: [[\"cdk-virtual-scroll-viewport\", \"itemSize\", \"\"]],\n inputs: {\n itemSize: \"itemSize\",\n minBufferPx: \"minBufferPx\",\n maxBufferPx: \"maxBufferPx\"\n },\n features: [i0.ɵɵProvidersFeature([{\n provide: VIRTUAL_SCROLL_STRATEGY,\n useFactory: _fixedSizeVirtualScrollStrategyFactory,\n deps: [forwardRef(() => CdkFixedSizeVirtualScroll)]\n }]), i0.ɵɵNgOnChangesFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkFixedSizeVirtualScroll, [{\n type: Directive,\n args: [{\n selector: 'cdk-virtual-scroll-viewport[itemSize]',\n providers: [{\n provide: VIRTUAL_SCROLL_STRATEGY,\n useFactory: _fixedSizeVirtualScrollStrategyFactory,\n deps: [forwardRef(() => CdkFixedSizeVirtualScroll)]\n }]\n }]\n }], null, {\n itemSize: [{\n type: Input\n }],\n minBufferPx: [{\n type: Input\n }],\n maxBufferPx: [{\n type: Input\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Time in ms to throttle the scrolling events by default. */\n\n\nconst DEFAULT_SCROLL_TIME = 20;\n/**\n * Service contained all registered Scrollable references and emits an event when any one of the\n * Scrollable references emit a scrolled event.\n */\n\nclass ScrollDispatcher {\n constructor(_ngZone, _platform, document) {\n this._ngZone = _ngZone;\n this._platform = _platform;\n /** Subject for notifying that a registered scrollable reference element has been scrolled. */\n\n this._scrolled = new Subject();\n /** Keeps track of the global `scroll` and `resize` subscriptions. */\n\n this._globalSubscription = null;\n /** Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards. */\n\n this._scrolledCount = 0;\n /**\n * Map of all the scrollable references that are registered with the service and their\n * scroll event subscriptions.\n */\n\n this.scrollContainers = new Map();\n this._document = document;\n }\n /**\n * Registers a scrollable instance with the service and listens for its scrolled events. When the\n * scrollable is scrolled, the service emits the event to its scrolled observable.\n * @param scrollable Scrollable instance to be registered.\n */\n\n\n register(scrollable) {\n if (!this.scrollContainers.has(scrollable)) {\n this.scrollContainers.set(scrollable, scrollable.elementScrolled().subscribe(() => this._scrolled.next(scrollable)));\n }\n }\n /**\n * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n * @param scrollable Scrollable instance to be deregistered.\n */\n\n\n deregister(scrollable) {\n const scrollableReference = this.scrollContainers.get(scrollable);\n\n if (scrollableReference) {\n scrollableReference.unsubscribe();\n this.scrollContainers.delete(scrollable);\n }\n }\n /**\n * Returns an observable that emits an event whenever any of the registered Scrollable\n * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n * to override the default \"throttle\" time.\n *\n * **Note:** in order to avoid hitting change detection for every scroll event,\n * all of the events emitted from this stream will be run outside the Angular zone.\n * If you need to update any data bindings as a result of a scroll event, you have\n * to run the callback using `NgZone.run`.\n */\n\n\n scrolled(auditTimeInMs = DEFAULT_SCROLL_TIME) {\n if (!this._platform.isBrowser) {\n return of();\n }\n\n return new Observable(observer => {\n if (!this._globalSubscription) {\n this._addGlobalListener();\n } // In the case of a 0ms delay, use an observable without auditTime\n // since it does add a perceptible delay in processing overhead.\n\n\n const subscription = auditTimeInMs > 0 ? this._scrolled.pipe(auditTime(auditTimeInMs)).subscribe(observer) : this._scrolled.subscribe(observer);\n this._scrolledCount++;\n return () => {\n subscription.unsubscribe();\n this._scrolledCount--;\n\n if (!this._scrolledCount) {\n this._removeGlobalListener();\n }\n };\n });\n }\n\n ngOnDestroy() {\n this._removeGlobalListener();\n\n this.scrollContainers.forEach((_, container) => this.deregister(container));\n\n this._scrolled.complete();\n }\n /**\n * Returns an observable that emits whenever any of the\n * scrollable ancestors of an element are scrolled.\n * @param elementOrElementRef Element whose ancestors to listen for.\n * @param auditTimeInMs Time to throttle the scroll events.\n */\n\n\n ancestorScrolled(elementOrElementRef, auditTimeInMs) {\n const ancestors = this.getAncestorScrollContainers(elementOrElementRef);\n return this.scrolled(auditTimeInMs).pipe(filter(target => {\n return !target || ancestors.indexOf(target) > -1;\n }));\n }\n /** Returns all registered Scrollables that contain the provided element. */\n\n\n getAncestorScrollContainers(elementOrElementRef) {\n const scrollingContainers = [];\n this.scrollContainers.forEach((_subscription, scrollable) => {\n if (this._scrollableContainsElement(scrollable, elementOrElementRef)) {\n scrollingContainers.push(scrollable);\n }\n });\n return scrollingContainers;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n\n\n _getWindow() {\n return this._document.defaultView || window;\n }\n /** Returns true if the element is contained within the provided Scrollable. */\n\n\n _scrollableContainsElement(scrollable, elementOrElementRef) {\n let element = coerceElement(elementOrElementRef);\n let scrollableElement = scrollable.getElementRef().nativeElement; // Traverse through the element parents until we reach null, checking if any of the elements\n // are the scrollable's element.\n\n do {\n if (element == scrollableElement) {\n return true;\n }\n } while (element = element.parentElement);\n\n return false;\n }\n /** Sets up the global scroll listeners. */\n\n\n _addGlobalListener() {\n this._globalSubscription = this._ngZone.runOutsideAngular(() => {\n const window = this._getWindow();\n\n return fromEvent(window.document, 'scroll').subscribe(() => this._scrolled.next());\n });\n }\n /** Cleans up the global scroll listener. */\n\n\n _removeGlobalListener() {\n if (this._globalSubscription) {\n this._globalSubscription.unsubscribe();\n\n this._globalSubscription = null;\n }\n }\n\n}\n\nScrollDispatcher.ɵfac = function ScrollDispatcher_Factory(t) {\n return new (t || ScrollDispatcher)(i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(i1.Platform), i0.ɵɵinject(DOCUMENT, 8));\n};\n\nScrollDispatcher.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ScrollDispatcher,\n factory: ScrollDispatcher.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ScrollDispatcher, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i0.NgZone\n }, {\n type: i1.Platform\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Sends an event when the directive's element is scrolled. Registers itself with the\n * ScrollDispatcher service to include itself as part of its collection of scrolling events that it\n * can be listened to through the service.\n */\n\n\nclass CdkScrollable {\n constructor(elementRef, scrollDispatcher, ngZone, dir) {\n this.elementRef = elementRef;\n this.scrollDispatcher = scrollDispatcher;\n this.ngZone = ngZone;\n this.dir = dir;\n this._destroyed = new Subject();\n this._elementScrolled = new Observable(observer => this.ngZone.runOutsideAngular(() => fromEvent(this.elementRef.nativeElement, 'scroll').pipe(takeUntil(this._destroyed)).subscribe(observer)));\n }\n\n ngOnInit() {\n this.scrollDispatcher.register(this);\n }\n\n ngOnDestroy() {\n this.scrollDispatcher.deregister(this);\n\n this._destroyed.next();\n\n this._destroyed.complete();\n }\n /** Returns observable that emits when a scroll event is fired on the host element. */\n\n\n elementScrolled() {\n return this._elementScrolled;\n }\n /** Gets the ElementRef for the viewport. */\n\n\n getElementRef() {\n return this.elementRef;\n }\n /**\n * Scrolls to the specified offsets. This is a normalized version of the browser's native scrollTo\n * method, since browsers are not consistent about what scrollLeft means in RTL. For this method\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param options specified the offsets to scroll to.\n */\n\n\n scrollTo(options) {\n const el = this.elementRef.nativeElement;\n const isRtl = this.dir && this.dir.value == 'rtl'; // Rewrite start & end offsets as right or left offsets.\n\n if (options.left == null) {\n options.left = isRtl ? options.end : options.start;\n }\n\n if (options.right == null) {\n options.right = isRtl ? options.start : options.end;\n } // Rewrite the bottom offset as a top offset.\n\n\n if (options.bottom != null) {\n options.top = el.scrollHeight - el.clientHeight - options.bottom;\n } // Rewrite the right offset as a left offset.\n\n\n if (isRtl && getRtlScrollAxisType() != 0\n /* NORMAL */\n ) {\n if (options.left != null) {\n options.right = el.scrollWidth - el.clientWidth - options.left;\n }\n\n if (getRtlScrollAxisType() == 2\n /* INVERTED */\n ) {\n options.left = options.right;\n } else if (getRtlScrollAxisType() == 1\n /* NEGATED */\n ) {\n options.left = options.right ? -options.right : options.right;\n }\n } else {\n if (options.right != null) {\n options.left = el.scrollWidth - el.clientWidth - options.right;\n }\n }\n\n this._applyScrollToOptions(options);\n }\n\n _applyScrollToOptions(options) {\n const el = this.elementRef.nativeElement;\n\n if (supportsScrollBehavior()) {\n el.scrollTo(options);\n } else {\n if (options.top != null) {\n el.scrollTop = options.top;\n }\n\n if (options.left != null) {\n el.scrollLeft = options.left;\n }\n }\n }\n /**\n * Measures the scroll offset relative to the specified edge of the viewport. This method can be\n * used instead of directly checking scrollLeft or scrollTop, since browsers are not consistent\n * about what scrollLeft means in RTL. The values returned by this method are normalized such that\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param from The edge to measure from.\n */\n\n\n measureScrollOffset(from) {\n const LEFT = 'left';\n const RIGHT = 'right';\n const el = this.elementRef.nativeElement;\n\n if (from == 'top') {\n return el.scrollTop;\n }\n\n if (from == 'bottom') {\n return el.scrollHeight - el.clientHeight - el.scrollTop;\n } // Rewrite start & end as left or right offsets.\n\n\n const isRtl = this.dir && this.dir.value == 'rtl';\n\n if (from == 'start') {\n from = isRtl ? RIGHT : LEFT;\n } else if (from == 'end') {\n from = isRtl ? LEFT : RIGHT;\n }\n\n if (isRtl && getRtlScrollAxisType() == 2\n /* INVERTED */\n ) {\n // For INVERTED, scrollLeft is (scrollWidth - clientWidth) when scrolled all the way left and\n // 0 when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollWidth - el.clientWidth - el.scrollLeft;\n } else {\n return el.scrollLeft;\n }\n } else if (isRtl && getRtlScrollAxisType() == 1\n /* NEGATED */\n ) {\n // For NEGATED, scrollLeft is -(scrollWidth - clientWidth) when scrolled all the way left and\n // 0 when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollLeft + el.scrollWidth - el.clientWidth;\n } else {\n return -el.scrollLeft;\n }\n } else {\n // For NORMAL, as well as non-RTL contexts, scrollLeft is 0 when scrolled all the way left and\n // (scrollWidth - clientWidth) when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollLeft;\n } else {\n return el.scrollWidth - el.clientWidth - el.scrollLeft;\n }\n }\n }\n\n}\n\nCdkScrollable.ɵfac = function CdkScrollable_Factory(t) {\n return new (t || CdkScrollable)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(ScrollDispatcher), i0.ɵɵdirectiveInject(i0.NgZone), i0.ɵɵdirectiveInject(i2.Directionality, 8));\n};\n\nCdkScrollable.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkScrollable,\n selectors: [[\"\", \"cdk-scrollable\", \"\"], [\"\", \"cdkScrollable\", \"\"]]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkScrollable, [{\n type: Directive,\n args: [{\n selector: '[cdk-scrollable], [cdkScrollable]'\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: ScrollDispatcher\n }, {\n type: i0.NgZone\n }, {\n type: i2.Directionality,\n decorators: [{\n type: Optional\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Time in ms to throttle the resize events by default. */\n\n\nconst DEFAULT_RESIZE_TIME = 20;\n/**\n * Simple utility for getting the bounds of the browser viewport.\n * @docs-private\n */\n\nclass ViewportRuler {\n constructor(_platform, ngZone, document) {\n this._platform = _platform;\n /** Stream of viewport change events. */\n\n this._change = new Subject();\n /** Event listener that will be used to handle the viewport change events. */\n\n this._changeListener = event => {\n this._change.next(event);\n };\n\n this._document = document;\n ngZone.runOutsideAngular(() => {\n if (_platform.isBrowser) {\n const window = this._getWindow(); // Note that bind the events ourselves, rather than going through something like RxJS's\n // `fromEvent` so that we can ensure that they're bound outside of the NgZone.\n\n\n window.addEventListener('resize', this._changeListener);\n window.addEventListener('orientationchange', this._changeListener);\n } // Clear the cached position so that the viewport is re-measured next time it is required.\n // We don't need to keep track of the subscription, because it is completed on destroy.\n\n\n this.change().subscribe(() => this._viewportSize = null);\n });\n }\n\n ngOnDestroy() {\n if (this._platform.isBrowser) {\n const window = this._getWindow();\n\n window.removeEventListener('resize', this._changeListener);\n window.removeEventListener('orientationchange', this._changeListener);\n }\n\n this._change.complete();\n }\n /** Returns the viewport's width and height. */\n\n\n getViewportSize() {\n if (!this._viewportSize) {\n this._updateViewportSize();\n }\n\n const output = {\n width: this._viewportSize.width,\n height: this._viewportSize.height\n }; // If we're not on a browser, don't cache the size since it'll be mocked out anyway.\n\n if (!this._platform.isBrowser) {\n this._viewportSize = null;\n }\n\n return output;\n }\n /** Gets a ClientRect for the viewport's bounds. */\n\n\n getViewportRect() {\n // Use the document element's bounding rect rather than the window scroll properties\n // (e.g. pageYOffset, scrollY) due to in issue in Chrome and IE where window scroll\n // properties and client coordinates (boundingClientRect, clientX/Y, etc.) are in different\n // conceptual viewports. Under most circumstances these viewports are equivalent, but they\n // can disagree when the page is pinch-zoomed (on devices that support touch).\n // See https://bugs.chromium.org/p/chromium/issues/detail?id=489206#c4\n // We use the documentElement instead of the body because, by default (without a css reset)\n // browsers typically give the document body an 8px margin, which is not included in\n // getBoundingClientRect().\n const scrollPosition = this.getViewportScrollPosition();\n const {\n width,\n height\n } = this.getViewportSize();\n return {\n top: scrollPosition.top,\n left: scrollPosition.left,\n bottom: scrollPosition.top + height,\n right: scrollPosition.left + width,\n height,\n width\n };\n }\n /** Gets the (top, left) scroll position of the viewport. */\n\n\n getViewportScrollPosition() {\n // While we can get a reference to the fake document\n // during SSR, it doesn't have getBoundingClientRect.\n if (!this._platform.isBrowser) {\n return {\n top: 0,\n left: 0\n };\n } // The top-left-corner of the viewport is determined by the scroll position of the document\n // body, normally just (scrollLeft, scrollTop). However, Chrome and Firefox disagree about\n // whether `document.body` or `document.documentElement` is the scrolled element, so reading\n // `scrollTop` and `scrollLeft` is inconsistent. However, using the bounding rect of\n // `document.documentElement` works consistently, where the `top` and `left` values will\n // equal negative the scroll position.\n\n\n const document = this._document;\n\n const window = this._getWindow();\n\n const documentElement = document.documentElement;\n const documentRect = documentElement.getBoundingClientRect();\n const top = -documentRect.top || document.body.scrollTop || window.scrollY || documentElement.scrollTop || 0;\n const left = -documentRect.left || document.body.scrollLeft || window.scrollX || documentElement.scrollLeft || 0;\n return {\n top,\n left\n };\n }\n /**\n * Returns a stream that emits whenever the size of the viewport changes.\n * This stream emits outside of the Angular zone.\n * @param throttleTime Time in milliseconds to throttle the stream.\n */\n\n\n change(throttleTime = DEFAULT_RESIZE_TIME) {\n return throttleTime > 0 ? this._change.pipe(auditTime(throttleTime)) : this._change;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n\n\n _getWindow() {\n return this._document.defaultView || window;\n }\n /** Updates the cached viewport size. */\n\n\n _updateViewportSize() {\n const window = this._getWindow();\n\n this._viewportSize = this._platform.isBrowser ? {\n width: window.innerWidth,\n height: window.innerHeight\n } : {\n width: 0,\n height: 0\n };\n }\n\n}\n\nViewportRuler.ɵfac = function ViewportRuler_Factory(t) {\n return new (t || ViewportRuler)(i0.ɵɵinject(i1.Platform), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(DOCUMENT, 8));\n};\n\nViewportRuler.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ViewportRuler,\n factory: ViewportRuler.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ViewportRuler, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.Platform\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Checks if the given ranges are equal. */\n\n\nfunction rangesEqual(r1, r2) {\n return r1.start == r2.start && r1.end == r2.end;\n}\n/**\n * Scheduler to be used for scroll events. Needs to fall back to\n * something that doesn't rely on requestAnimationFrame on environments\n * that don't support it (e.g. server-side rendering).\n */\n\n\nconst SCROLL_SCHEDULER = typeof requestAnimationFrame !== 'undefined' ? animationFrameScheduler : asapScheduler;\n/** A viewport that virtualizes its scrolling with the help of `CdkVirtualForOf`. */\n\nclass CdkVirtualScrollViewport extends CdkScrollable {\n constructor(elementRef, _changeDetectorRef, ngZone, _scrollStrategy, dir, scrollDispatcher, viewportRuler) {\n super(elementRef, scrollDispatcher, ngZone, dir);\n this.elementRef = elementRef;\n this._changeDetectorRef = _changeDetectorRef;\n this._scrollStrategy = _scrollStrategy;\n /** Emits when the viewport is detached from a CdkVirtualForOf. */\n\n this._detachedSubject = new Subject();\n /** Emits when the rendered range changes. */\n\n this._renderedRangeSubject = new Subject();\n this._orientation = 'vertical';\n this._appendOnly = false; // Note: we don't use the typical EventEmitter here because we need to subscribe to the scroll\n // strategy lazily (i.e. only if the user is actually listening to the events). We do this because\n // depending on how the strategy calculates the scrolled index, it may come at a cost to\n // performance.\n\n /** Emits when the index of the first element visible in the viewport changes. */\n\n this.scrolledIndexChange = new Observable(observer => this._scrollStrategy.scrolledIndexChange.subscribe(index => Promise.resolve().then(() => this.ngZone.run(() => observer.next(index)))));\n /** A stream that emits whenever the rendered range changes. */\n\n this.renderedRangeStream = this._renderedRangeSubject;\n /**\n * The total size of all content (in pixels), including content that is not currently rendered.\n */\n\n this._totalContentSize = 0;\n /** A string representing the `style.width` property value to be used for the spacer element. */\n\n this._totalContentWidth = '';\n /** A string representing the `style.height` property value to be used for the spacer element. */\n\n this._totalContentHeight = '';\n /** The currently rendered range of indices. */\n\n this._renderedRange = {\n start: 0,\n end: 0\n };\n /** The length of the data bound to this viewport (in number of items). */\n\n this._dataLength = 0;\n /** The size of the viewport (in pixels). */\n\n this._viewportSize = 0;\n /** The last rendered content offset that was set. */\n\n this._renderedContentOffset = 0;\n /**\n * Whether the last rendered content offset was to the end of the content (and therefore needs to\n * be rewritten as an offset to the start of the content).\n */\n\n this._renderedContentOffsetNeedsRewrite = false;\n /** Whether there is a pending change detection cycle. */\n\n this._isChangeDetectionPending = false;\n /** A list of functions to run after the next change detection cycle. */\n\n this._runAfterChangeDetection = [];\n /** Subscription to changes in the viewport size. */\n\n this._viewportChanges = Subscription.EMPTY;\n\n if (!_scrollStrategy && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Error: cdk-virtual-scroll-viewport requires the \"itemSize\" property to be set.');\n }\n\n this._viewportChanges = viewportRuler.change().subscribe(() => {\n this.checkViewportSize();\n });\n }\n /** The direction the viewport scrolls. */\n\n\n get orientation() {\n return this._orientation;\n }\n\n set orientation(orientation) {\n if (this._orientation !== orientation) {\n this._orientation = orientation;\n\n this._calculateSpacerSize();\n }\n }\n /**\n * Whether rendered items should persist in the DOM after scrolling out of view. By default, items\n * will be removed.\n */\n\n\n get appendOnly() {\n return this._appendOnly;\n }\n\n set appendOnly(value) {\n this._appendOnly = coerceBooleanProperty(value);\n }\n\n ngOnInit() {\n super.ngOnInit(); // It's still too early to measure the viewport at this point. Deferring with a promise allows\n // the Viewport to be rendered with the correct size before we measure. We run this outside the\n // zone to avoid causing more change detection cycles. We handle the change detection loop\n // ourselves instead.\n\n this.ngZone.runOutsideAngular(() => Promise.resolve().then(() => {\n this._measureViewportSize();\n\n this._scrollStrategy.attach(this);\n\n this.elementScrolled().pipe( // Start off with a fake scroll event so we properly detect our initial position.\n startWith(null), // Collect multiple events into one until the next animation frame. This way if\n // there are multiple scroll events in the same frame we only need to recheck\n // our layout once.\n auditTime(0, SCROLL_SCHEDULER)).subscribe(() => this._scrollStrategy.onContentScrolled());\n\n this._markChangeDetectionNeeded();\n }));\n }\n\n ngOnDestroy() {\n this.detach();\n\n this._scrollStrategy.detach(); // Complete all subjects\n\n\n this._renderedRangeSubject.complete();\n\n this._detachedSubject.complete();\n\n this._viewportChanges.unsubscribe();\n\n super.ngOnDestroy();\n }\n /** Attaches a `CdkVirtualScrollRepeater` to this viewport. */\n\n\n attach(forOf) {\n if (this._forOf && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('CdkVirtualScrollViewport is already attached.');\n } // Subscribe to the data stream of the CdkVirtualForOf to keep track of when the data length\n // changes. Run outside the zone to avoid triggering change detection, since we're managing the\n // change detection loop ourselves.\n\n\n this.ngZone.runOutsideAngular(() => {\n this._forOf = forOf;\n\n this._forOf.dataStream.pipe(takeUntil(this._detachedSubject)).subscribe(data => {\n const newLength = data.length;\n\n if (newLength !== this._dataLength) {\n this._dataLength = newLength;\n\n this._scrollStrategy.onDataLengthChanged();\n }\n\n this._doChangeDetection();\n });\n });\n }\n /** Detaches the current `CdkVirtualForOf`. */\n\n\n detach() {\n this._forOf = null;\n\n this._detachedSubject.next();\n }\n /** Gets the length of the data bound to this viewport (in number of items). */\n\n\n getDataLength() {\n return this._dataLength;\n }\n /** Gets the size of the viewport (in pixels). */\n\n\n getViewportSize() {\n return this._viewportSize;\n } // TODO(mmalerba): This is technically out of sync with what's really rendered until a render\n // cycle happens. I'm being careful to only call it after the render cycle is complete and before\n // setting it to something else, but its error prone and should probably be split into\n // `pendingRange` and `renderedRange`, the latter reflecting whats actually in the DOM.\n\n /** Get the current rendered range of items. */\n\n\n getRenderedRange() {\n return this._renderedRange;\n }\n /**\n * Sets the total size of all content (in pixels), including content that is not currently\n * rendered.\n */\n\n\n setTotalContentSize(size) {\n if (this._totalContentSize !== size) {\n this._totalContentSize = size;\n\n this._calculateSpacerSize();\n\n this._markChangeDetectionNeeded();\n }\n }\n /** Sets the currently rendered range of indices. */\n\n\n setRenderedRange(range) {\n if (!rangesEqual(this._renderedRange, range)) {\n if (this.appendOnly) {\n range = {\n start: 0,\n end: Math.max(this._renderedRange.end, range.end)\n };\n }\n\n this._renderedRangeSubject.next(this._renderedRange = range);\n\n this._markChangeDetectionNeeded(() => this._scrollStrategy.onContentRendered());\n }\n }\n /**\n * Gets the offset from the start of the viewport to the start of the rendered data (in pixels).\n */\n\n\n getOffsetToRenderedContentStart() {\n return this._renderedContentOffsetNeedsRewrite ? null : this._renderedContentOffset;\n }\n /**\n * Sets the offset from the start of the viewport to either the start or end of the rendered data\n * (in pixels).\n */\n\n\n setRenderedContentOffset(offset, to = 'to-start') {\n // For a horizontal viewport in a right-to-left language we need to translate along the x-axis\n // in the negative direction.\n const isRtl = this.dir && this.dir.value == 'rtl';\n const isHorizontal = this.orientation == 'horizontal';\n const axis = isHorizontal ? 'X' : 'Y';\n const axisDirection = isHorizontal && isRtl ? -1 : 1;\n let transform = `translate${axis}(${Number(axisDirection * offset)}px)`;\n this._renderedContentOffset = offset;\n\n if (to === 'to-end') {\n transform += ` translate${axis}(-100%)`; // The viewport should rewrite this as a `to-start` offset on the next render cycle. Otherwise\n // elements will appear to expand in the wrong direction (e.g. `mat-expansion-panel` would\n // expand upward).\n\n this._renderedContentOffsetNeedsRewrite = true;\n }\n\n if (this._renderedContentTransform != transform) {\n // We know this value is safe because we parse `offset` with `Number()` before passing it\n // into the string.\n this._renderedContentTransform = transform;\n\n this._markChangeDetectionNeeded(() => {\n if (this._renderedContentOffsetNeedsRewrite) {\n this._renderedContentOffset -= this.measureRenderedContentSize();\n this._renderedContentOffsetNeedsRewrite = false;\n this.setRenderedContentOffset(this._renderedContentOffset);\n } else {\n this._scrollStrategy.onRenderedOffsetChanged();\n }\n });\n }\n }\n /**\n * Scrolls to the given offset from the start of the viewport. Please note that this is not always\n * the same as setting `scrollTop` or `scrollLeft`. In a horizontal viewport with right-to-left\n * direction, this would be the equivalent of setting a fictional `scrollRight` property.\n * @param offset The offset to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n */\n\n\n scrollToOffset(offset, behavior = 'auto') {\n const options = {\n behavior\n };\n\n if (this.orientation === 'horizontal') {\n options.start = offset;\n } else {\n options.top = offset;\n }\n\n this.scrollTo(options);\n }\n /**\n * Scrolls to the offset for the given index.\n * @param index The index of the element to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n */\n\n\n scrollToIndex(index, behavior = 'auto') {\n this._scrollStrategy.scrollToIndex(index, behavior);\n }\n /**\n * Gets the current scroll offset from the start of the viewport (in pixels).\n * @param from The edge to measure the offset from. Defaults to 'top' in vertical mode and 'start'\n * in horizontal mode.\n */\n\n\n measureScrollOffset(from) {\n return from ? super.measureScrollOffset(from) : super.measureScrollOffset(this.orientation === 'horizontal' ? 'start' : 'top');\n }\n /** Measure the combined size of all of the rendered items. */\n\n\n measureRenderedContentSize() {\n const contentEl = this._contentWrapper.nativeElement;\n return this.orientation === 'horizontal' ? contentEl.offsetWidth : contentEl.offsetHeight;\n }\n /**\n * Measure the total combined size of the given range. Throws if the range includes items that are\n * not rendered.\n */\n\n\n measureRangeSize(range) {\n if (!this._forOf) {\n return 0;\n }\n\n return this._forOf.measureRangeSize(range, this.orientation);\n }\n /** Update the viewport dimensions and re-render. */\n\n\n checkViewportSize() {\n // TODO: Cleanup later when add logic for handling content resize\n this._measureViewportSize();\n\n this._scrollStrategy.onDataLengthChanged();\n }\n /** Measure the viewport size. */\n\n\n _measureViewportSize() {\n const viewportEl = this.elementRef.nativeElement;\n this._viewportSize = this.orientation === 'horizontal' ? viewportEl.clientWidth : viewportEl.clientHeight;\n }\n /** Queue up change detection to run. */\n\n\n _markChangeDetectionNeeded(runAfter) {\n if (runAfter) {\n this._runAfterChangeDetection.push(runAfter);\n } // Use a Promise to batch together calls to `_doChangeDetection`. This way if we set a bunch of\n // properties sequentially we only have to run `_doChangeDetection` once at the end.\n\n\n if (!this._isChangeDetectionPending) {\n this._isChangeDetectionPending = true;\n this.ngZone.runOutsideAngular(() => Promise.resolve().then(() => {\n this._doChangeDetection();\n }));\n }\n }\n /** Run change detection. */\n\n\n _doChangeDetection() {\n this._isChangeDetectionPending = false; // Apply the content transform. The transform can't be set via an Angular binding because\n // bypassSecurityTrustStyle is banned in Google. However the value is safe, it's composed of\n // string literals, a variable that can only be 'X' or 'Y', and user input that is run through\n // the `Number` function first to coerce it to a numeric value.\n\n this._contentWrapper.nativeElement.style.transform = this._renderedContentTransform; // Apply changes to Angular bindings. Note: We must call `markForCheck` to run change detection\n // from the root, since the repeated items are content projected in. Calling `detectChanges`\n // instead does not properly check the projected content.\n\n this.ngZone.run(() => this._changeDetectorRef.markForCheck());\n const runAfterChangeDetection = this._runAfterChangeDetection;\n this._runAfterChangeDetection = [];\n\n for (const fn of runAfterChangeDetection) {\n fn();\n }\n }\n /** Calculates the `style.width` and `style.height` for the spacer element. */\n\n\n _calculateSpacerSize() {\n this._totalContentHeight = this.orientation === 'horizontal' ? '' : `${this._totalContentSize}px`;\n this._totalContentWidth = this.orientation === 'horizontal' ? `${this._totalContentSize}px` : '';\n }\n\n}\n\nCdkVirtualScrollViewport.ɵfac = function CdkVirtualScrollViewport_Factory(t) {\n return new (t || CdkVirtualScrollViewport)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i0.ChangeDetectorRef), i0.ɵɵdirectiveInject(i0.NgZone), i0.ɵɵdirectiveInject(VIRTUAL_SCROLL_STRATEGY, 8), i0.ɵɵdirectiveInject(i2.Directionality, 8), i0.ɵɵdirectiveInject(ScrollDispatcher), i0.ɵɵdirectiveInject(ViewportRuler));\n};\n\nCdkVirtualScrollViewport.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: CdkVirtualScrollViewport,\n selectors: [[\"cdk-virtual-scroll-viewport\"]],\n viewQuery: function CdkVirtualScrollViewport_Query(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵviewQuery(_c0, 7);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx._contentWrapper = _t.first);\n }\n },\n hostAttrs: [1, \"cdk-virtual-scroll-viewport\"],\n hostVars: 4,\n hostBindings: function CdkVirtualScrollViewport_HostBindings(rf, ctx) {\n if (rf & 2) {\n i0.ɵɵclassProp(\"cdk-virtual-scroll-orientation-horizontal\", ctx.orientation === \"horizontal\")(\"cdk-virtual-scroll-orientation-vertical\", ctx.orientation !== \"horizontal\");\n }\n },\n inputs: {\n orientation: \"orientation\",\n appendOnly: \"appendOnly\"\n },\n outputs: {\n scrolledIndexChange: \"scrolledIndexChange\"\n },\n features: [i0.ɵɵProvidersFeature([{\n provide: CdkScrollable,\n useExisting: CdkVirtualScrollViewport\n }]), i0.ɵɵInheritDefinitionFeature],\n ngContentSelectors: _c1,\n decls: 4,\n vars: 4,\n consts: [[1, \"cdk-virtual-scroll-content-wrapper\"], [\"contentWrapper\", \"\"], [1, \"cdk-virtual-scroll-spacer\"]],\n template: function CdkVirtualScrollViewport_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef();\n i0.ɵɵelementStart(0, \"div\", 0, 1);\n i0.ɵɵprojection(2);\n i0.ɵɵelementEnd();\n i0.ɵɵelement(3, \"div\", 2);\n }\n\n if (rf & 2) {\n i0.ɵɵadvance(3);\n i0.ɵɵstyleProp(\"width\", ctx._totalContentWidth)(\"height\", ctx._totalContentHeight);\n }\n },\n styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"],\n encapsulation: 2,\n changeDetection: 0\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkVirtualScrollViewport, [{\n type: Component,\n args: [{\n selector: 'cdk-virtual-scroll-viewport',\n host: {\n 'class': 'cdk-virtual-scroll-viewport',\n '[class.cdk-virtual-scroll-orientation-horizontal]': 'orientation === \"horizontal\"',\n '[class.cdk-virtual-scroll-orientation-vertical]': 'orientation !== \"horizontal\"'\n },\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n providers: [{\n provide: CdkScrollable,\n useExisting: CdkVirtualScrollViewport\n }],\n template: \"\\n
\\n \\n
\\n\\n\\n\",\n styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"]\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: i0.ChangeDetectorRef\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [VIRTUAL_SCROLL_STRATEGY]\n }]\n }, {\n type: i2.Directionality,\n decorators: [{\n type: Optional\n }]\n }, {\n type: ScrollDispatcher\n }, {\n type: ViewportRuler\n }];\n }, {\n orientation: [{\n type: Input\n }],\n appendOnly: [{\n type: Input\n }],\n scrolledIndexChange: [{\n type: Output\n }],\n _contentWrapper: [{\n type: ViewChild,\n args: ['contentWrapper', {\n static: true\n }]\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Helper to extract the offset of a DOM Node in a certain direction. */\n\n\nfunction getOffset(orientation, direction, node) {\n const el = node;\n\n if (!el.getBoundingClientRect) {\n return 0;\n }\n\n const rect = el.getBoundingClientRect();\n\n if (orientation === 'horizontal') {\n return direction === 'start' ? rect.left : rect.right;\n }\n\n return direction === 'start' ? rect.top : rect.bottom;\n}\n/**\n * A directive similar to `ngForOf` to be used for rendering data inside a virtual scrolling\n * container.\n */\n\n\nclass CdkVirtualForOf {\n constructor(\n /** The view container to add items to. */\n _viewContainerRef,\n /** The template to use when stamping out new items. */\n _template,\n /** The set of available differs. */\n _differs,\n /** The strategy used to render items in the virtual scroll viewport. */\n _viewRepeater,\n /** The virtual scrolling viewport that these items are being rendered in. */\n _viewport, ngZone) {\n this._viewContainerRef = _viewContainerRef;\n this._template = _template;\n this._differs = _differs;\n this._viewRepeater = _viewRepeater;\n this._viewport = _viewport;\n /** Emits when the rendered view of the data changes. */\n\n this.viewChange = new Subject();\n /** Subject that emits when a new DataSource instance is given. */\n\n this._dataSourceChanges = new Subject();\n /** Emits whenever the data in the current DataSource changes. */\n\n this.dataStream = this._dataSourceChanges.pipe( // Start off with null `DataSource`.\n startWith(null), // Bundle up the previous and current data sources so we can work with both.\n pairwise(), // Use `_changeDataSource` to disconnect from the previous data source and connect to the\n // new one, passing back a stream of data changes which we run through `switchMap` to give\n // us a data stream that emits the latest data from whatever the current `DataSource` is.\n switchMap(([prev, cur]) => this._changeDataSource(prev, cur)), // Replay the last emitted data when someone subscribes.\n shareReplay(1));\n /** The differ used to calculate changes to the data. */\n\n this._differ = null;\n /** Whether the rendered data should be updated during the next ngDoCheck cycle. */\n\n this._needsUpdate = false;\n this._destroyed = new Subject();\n this.dataStream.subscribe(data => {\n this._data = data;\n\n this._onRenderedDataChange();\n });\n\n this._viewport.renderedRangeStream.pipe(takeUntil(this._destroyed)).subscribe(range => {\n this._renderedRange = range;\n ngZone.run(() => this.viewChange.next(this._renderedRange));\n\n this._onRenderedDataChange();\n });\n\n this._viewport.attach(this);\n }\n /** The DataSource to display. */\n\n\n get cdkVirtualForOf() {\n return this._cdkVirtualForOf;\n }\n\n set cdkVirtualForOf(value) {\n this._cdkVirtualForOf = value;\n\n if (isDataSource(value)) {\n this._dataSourceChanges.next(value);\n } else {\n // If value is an an NgIterable, convert it to an array.\n this._dataSourceChanges.next(new ArrayDataSource(isObservable(value) ? value : Array.from(value || [])));\n }\n }\n /**\n * The `TrackByFunction` to use for tracking changes. The `TrackByFunction` takes the index and\n * the item and produces a value to be used as the item's identity when tracking changes.\n */\n\n\n get cdkVirtualForTrackBy() {\n return this._cdkVirtualForTrackBy;\n }\n\n set cdkVirtualForTrackBy(fn) {\n this._needsUpdate = true;\n this._cdkVirtualForTrackBy = fn ? (index, item) => fn(index + (this._renderedRange ? this._renderedRange.start : 0), item) : undefined;\n }\n /** The template used to stamp out new elements. */\n\n\n set cdkVirtualForTemplate(value) {\n if (value) {\n this._needsUpdate = true;\n this._template = value;\n }\n }\n /**\n * The size of the cache used to store templates that are not being used for re-use later.\n * Setting the cache size to `0` will disable caching. Defaults to 20 templates.\n */\n\n\n get cdkVirtualForTemplateCacheSize() {\n return this._viewRepeater.viewCacheSize;\n }\n\n set cdkVirtualForTemplateCacheSize(size) {\n this._viewRepeater.viewCacheSize = coerceNumberProperty(size);\n }\n /**\n * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n * in the specified range. Throws an error if the range includes items that are not currently\n * rendered.\n */\n\n\n measureRangeSize(range, orientation) {\n if (range.start >= range.end) {\n return 0;\n }\n\n if ((range.start < this._renderedRange.start || range.end > this._renderedRange.end) && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error(`Error: attempted to measure an item that isn't rendered.`);\n } // The index into the list of rendered views for the first item in the range.\n\n\n const renderedStartIndex = range.start - this._renderedRange.start; // The length of the range we're measuring.\n\n const rangeLen = range.end - range.start; // Loop over all the views, find the first and land node and compute the size by subtracting\n // the top of the first node from the bottom of the last one.\n\n let firstNode;\n let lastNode; // Find the first node by starting from the beginning and going forwards.\n\n for (let i = 0; i < rangeLen; i++) {\n const view = this._viewContainerRef.get(i + renderedStartIndex);\n\n if (view && view.rootNodes.length) {\n firstNode = lastNode = view.rootNodes[0];\n break;\n }\n } // Find the last node by starting from the end and going backwards.\n\n\n for (let i = rangeLen - 1; i > -1; i--) {\n const view = this._viewContainerRef.get(i + renderedStartIndex);\n\n if (view && view.rootNodes.length) {\n lastNode = view.rootNodes[view.rootNodes.length - 1];\n break;\n }\n }\n\n return firstNode && lastNode ? getOffset(orientation, 'end', lastNode) - getOffset(orientation, 'start', firstNode) : 0;\n }\n\n ngDoCheck() {\n if (this._differ && this._needsUpdate) {\n // TODO(mmalerba): We should differentiate needs update due to scrolling and a new portion of\n // this list being rendered (can use simpler algorithm) vs needs update due to data actually\n // changing (need to do this diff).\n const changes = this._differ.diff(this._renderedItems);\n\n if (!changes) {\n this._updateContext();\n } else {\n this._applyChanges(changes);\n }\n\n this._needsUpdate = false;\n }\n }\n\n ngOnDestroy() {\n this._viewport.detach();\n\n this._dataSourceChanges.next(undefined);\n\n this._dataSourceChanges.complete();\n\n this.viewChange.complete();\n\n this._destroyed.next();\n\n this._destroyed.complete();\n\n this._viewRepeater.detach();\n }\n /** React to scroll state changes in the viewport. */\n\n\n _onRenderedDataChange() {\n if (!this._renderedRange) {\n return;\n }\n\n this._renderedItems = this._data.slice(this._renderedRange.start, this._renderedRange.end);\n\n if (!this._differ) {\n // Use a wrapper function for the `trackBy` so any new values are\n // picked up automatically without having to recreate the differ.\n this._differ = this._differs.find(this._renderedItems).create((index, item) => {\n return this.cdkVirtualForTrackBy ? this.cdkVirtualForTrackBy(index, item) : item;\n });\n }\n\n this._needsUpdate = true;\n }\n /** Swap out one `DataSource` for another. */\n\n\n _changeDataSource(oldDs, newDs) {\n if (oldDs) {\n oldDs.disconnect(this);\n }\n\n this._needsUpdate = true;\n return newDs ? newDs.connect(this) : of();\n }\n /** Update the `CdkVirtualForOfContext` for all views. */\n\n\n _updateContext() {\n const count = this._data.length;\n let i = this._viewContainerRef.length;\n\n while (i--) {\n const view = this._viewContainerRef.get(i);\n\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n\n this._updateComputedContextProperties(view.context);\n\n view.detectChanges();\n }\n }\n /** Apply changes to the DOM. */\n\n\n _applyChanges(changes) {\n this._viewRepeater.applyChanges(changes, this._viewContainerRef, (record, _adjustedPreviousIndex, currentIndex) => this._getEmbeddedViewArgs(record, currentIndex), record => record.item); // Update $implicit for any items that had an identity change.\n\n\n changes.forEachIdentityChange(record => {\n const view = this._viewContainerRef.get(record.currentIndex);\n\n view.context.$implicit = record.item;\n }); // Update the context variables on all items.\n\n const count = this._data.length;\n let i = this._viewContainerRef.length;\n\n while (i--) {\n const view = this._viewContainerRef.get(i);\n\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n\n this._updateComputedContextProperties(view.context);\n }\n }\n /** Update the computed properties on the `CdkVirtualForOfContext`. */\n\n\n _updateComputedContextProperties(context) {\n context.first = context.index === 0;\n context.last = context.index === context.count - 1;\n context.even = context.index % 2 === 0;\n context.odd = !context.even;\n }\n\n _getEmbeddedViewArgs(record, index) {\n // Note that it's important that we insert the item directly at the proper index,\n // rather than inserting it and the moving it in place, because if there's a directive\n // on the same node that injects the `ViewContainerRef`, Angular will insert another\n // comment node which can throw off the move when it's being repeated for all items.\n return {\n templateRef: this._template,\n context: {\n $implicit: record.item,\n // It's guaranteed that the iterable is not \"undefined\" or \"null\" because we only\n // generate views for elements if the \"cdkVirtualForOf\" iterable has elements.\n cdkVirtualForOf: this._cdkVirtualForOf,\n index: -1,\n count: -1,\n first: false,\n last: false,\n odd: false,\n even: false\n },\n index\n };\n }\n\n}\n\nCdkVirtualForOf.ɵfac = function CdkVirtualForOf_Factory(t) {\n return new (t || CdkVirtualForOf)(i0.ɵɵdirectiveInject(i0.ViewContainerRef), i0.ɵɵdirectiveInject(i0.TemplateRef), i0.ɵɵdirectiveInject(i0.IterableDiffers), i0.ɵɵdirectiveInject(_VIEW_REPEATER_STRATEGY), i0.ɵɵdirectiveInject(CdkVirtualScrollViewport, 4), i0.ɵɵdirectiveInject(i0.NgZone));\n};\n\nCdkVirtualForOf.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkVirtualForOf,\n selectors: [[\"\", \"cdkVirtualFor\", \"\", \"cdkVirtualForOf\", \"\"]],\n inputs: {\n cdkVirtualForOf: \"cdkVirtualForOf\",\n cdkVirtualForTrackBy: \"cdkVirtualForTrackBy\",\n cdkVirtualForTemplate: \"cdkVirtualForTemplate\",\n cdkVirtualForTemplateCacheSize: \"cdkVirtualForTemplateCacheSize\"\n },\n features: [i0.ɵɵProvidersFeature([{\n provide: _VIEW_REPEATER_STRATEGY,\n useClass: _RecycleViewRepeaterStrategy\n }])]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkVirtualForOf, [{\n type: Directive,\n args: [{\n selector: '[cdkVirtualFor][cdkVirtualForOf]',\n providers: [{\n provide: _VIEW_REPEATER_STRATEGY,\n useClass: _RecycleViewRepeaterStrategy\n }]\n }]\n }], function () {\n return [{\n type: i0.ViewContainerRef\n }, {\n type: i0.TemplateRef\n }, {\n type: i0.IterableDiffers\n }, {\n type: i2$1._RecycleViewRepeaterStrategy,\n decorators: [{\n type: Inject,\n args: [_VIEW_REPEATER_STRATEGY]\n }]\n }, {\n type: CdkVirtualScrollViewport,\n decorators: [{\n type: SkipSelf\n }]\n }, {\n type: i0.NgZone\n }];\n }, {\n cdkVirtualForOf: [{\n type: Input\n }],\n cdkVirtualForTrackBy: [{\n type: Input\n }],\n cdkVirtualForTemplate: [{\n type: Input\n }],\n cdkVirtualForTemplateCacheSize: [{\n type: Input\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nclass CdkScrollableModule {}\n\nCdkScrollableModule.ɵfac = function CdkScrollableModule_Factory(t) {\n return new (t || CdkScrollableModule)();\n};\n\nCdkScrollableModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: CdkScrollableModule\n});\nCdkScrollableModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkScrollableModule, [{\n type: NgModule,\n args: [{\n exports: [CdkScrollable],\n declarations: [CdkScrollable]\n }]\n }], null, null);\n})();\n/**\n * @docs-primary-export\n */\n\n\nclass ScrollingModule {}\n\nScrollingModule.ɵfac = function ScrollingModule_Factory(t) {\n return new (t || ScrollingModule)();\n};\n\nScrollingModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: ScrollingModule\n});\nScrollingModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n imports: [[BidiModule, PlatformModule, CdkScrollableModule], BidiModule, CdkScrollableModule]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ScrollingModule, [{\n type: NgModule,\n args: [{\n imports: [BidiModule, PlatformModule, CdkScrollableModule],\n exports: [BidiModule, CdkScrollableModule, CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport],\n declarations: [CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport]\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. 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{ coerceNumberProperty, coerceElement, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport * as i0 from '@angular/core';\nimport { InjectionToken, forwardRef, Directive, Input, Injectable, Optional, Inject, Component, ViewEncapsulation, ChangeDetectionStrategy, Output, ViewChild, SkipSelf, NgModule } from '@angular/core';\nimport { Subject, of, Observable, fromEvent, animationFrameScheduler, asapScheduler, Subscription, isObservable } from 'rxjs';\nimport { distinctUntilChanged, auditTime, filter, takeUntil, startWith, pairwise, switchMap, shareReplay } from 'rxjs/operators';\nimport * as i1 from '@angular/cdk/platform';\nimport { getRtlScrollAxisType, supportsScrollBehavior, PlatformModule } from '@angular/cdk/platform';\nimport { DOCUMENT } from '@angular/common';\nimport * as i2 from '@angular/cdk/bidi';\nimport { BidiModule } from '@angular/cdk/bidi';\nimport * as i2$1 from '@angular/cdk/collections';\nimport { isDataSource, ArrayDataSource, _VIEW_REPEATER_STRATEGY, _RecycleViewRepeaterStrategy } from '@angular/cdk/collections';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** The injection token used to specify the virtual scrolling strategy. */\nconst VIRTUAL_SCROLL_STRATEGY = new InjectionToken('VIRTUAL_SCROLL_STRATEGY');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Virtual scrolling strategy for lists with items of known fixed size. */\nclass FixedSizeVirtualScrollStrategy {\n /**\n * @param itemSize The size of the items in the virtually scrolling list.\n * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n */\n constructor(itemSize, minBufferPx, maxBufferPx) {\n this._scrolledIndexChange = new Subject();\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n this.scrolledIndexChange = this._scrolledIndexChange.pipe(distinctUntilChanged());\n /** The attached viewport. */\n this._viewport = null;\n this._itemSize = itemSize;\n this._minBufferPx = minBufferPx;\n this._maxBufferPx = maxBufferPx;\n }\n /**\n * Attaches this scroll strategy to a viewport.\n * @param viewport The viewport to attach this strategy to.\n */\n attach(viewport) {\n this._viewport = viewport;\n this._updateTotalContentSize();\n this._updateRenderedRange();\n }\n /** Detaches this scroll strategy from the currently attached viewport. */\n detach() {\n this._scrolledIndexChange.complete();\n this._viewport = null;\n }\n /**\n * Update the item size and buffer size.\n * @param itemSize The size of the items in the virtually scrolling list.\n * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n */\n updateItemAndBufferSize(itemSize, minBufferPx, maxBufferPx) {\n if (maxBufferPx < minBufferPx && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('CDK virtual scroll: maxBufferPx must be greater than or equal to minBufferPx');\n }\n this._itemSize = itemSize;\n this._minBufferPx = minBufferPx;\n this._maxBufferPx = maxBufferPx;\n this._updateTotalContentSize();\n this._updateRenderedRange();\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n onContentScrolled() {\n this._updateRenderedRange();\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n onDataLengthChanged() {\n this._updateTotalContentSize();\n this._updateRenderedRange();\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n onContentRendered() {\n /* no-op */\n }\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n onRenderedOffsetChanged() {\n /* no-op */\n }\n /**\n * Scroll to the offset for the given index.\n * @param index The index of the element to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling.\n */\n scrollToIndex(index, behavior) {\n if (this._viewport) {\n this._viewport.scrollToOffset(index * this._itemSize, behavior);\n }\n }\n /** Update the viewport's total content size. */\n _updateTotalContentSize() {\n if (!this._viewport) {\n return;\n }\n this._viewport.setTotalContentSize(this._viewport.getDataLength() * this._itemSize);\n }\n /** Update the viewport's rendered range. */\n _updateRenderedRange() {\n if (!this._viewport) {\n return;\n }\n const renderedRange = this._viewport.getRenderedRange();\n const newRange = { start: renderedRange.start, end: renderedRange.end };\n const viewportSize = this._viewport.getViewportSize();\n const dataLength = this._viewport.getDataLength();\n let scrollOffset = this._viewport.measureScrollOffset();\n // Prevent NaN as result when dividing by zero.\n let firstVisibleIndex = this._itemSize > 0 ? scrollOffset / this._itemSize : 0;\n // If user scrolls to the bottom of the list and data changes to a smaller list\n if (newRange.end > dataLength) {\n // We have to recalculate the first visible index based on new data length and viewport size.\n const maxVisibleItems = Math.ceil(viewportSize / this._itemSize);\n const newVisibleIndex = Math.max(0, Math.min(firstVisibleIndex, dataLength - maxVisibleItems));\n // If first visible index changed we must update scroll offset to handle start/end buffers\n // Current range must also be adjusted to cover the new position (bottom of new list).\n if (firstVisibleIndex != newVisibleIndex) {\n firstVisibleIndex = newVisibleIndex;\n scrollOffset = newVisibleIndex * this._itemSize;\n newRange.start = Math.floor(firstVisibleIndex);\n }\n newRange.end = Math.max(0, Math.min(dataLength, newRange.start + maxVisibleItems));\n }\n const startBuffer = scrollOffset - newRange.start * this._itemSize;\n if (startBuffer < this._minBufferPx && newRange.start != 0) {\n const expandStart = Math.ceil((this._maxBufferPx - startBuffer) / this._itemSize);\n newRange.start = Math.max(0, newRange.start - expandStart);\n newRange.end = Math.min(dataLength, Math.ceil(firstVisibleIndex + (viewportSize + this._minBufferPx) / this._itemSize));\n }\n else {\n const endBuffer = newRange.end * this._itemSize - (scrollOffset + viewportSize);\n if (endBuffer < this._minBufferPx && newRange.end != dataLength) {\n const expandEnd = Math.ceil((this._maxBufferPx - endBuffer) / this._itemSize);\n if (expandEnd > 0) {\n newRange.end = Math.min(dataLength, newRange.end + expandEnd);\n newRange.start = Math.max(0, Math.floor(firstVisibleIndex - this._minBufferPx / this._itemSize));\n }\n }\n }\n this._viewport.setRenderedRange(newRange);\n this._viewport.setRenderedContentOffset(this._itemSize * newRange.start);\n this._scrolledIndexChange.next(Math.floor(firstVisibleIndex));\n }\n}\n/**\n * Provider factory for `FixedSizeVirtualScrollStrategy` that simply extracts the already created\n * `FixedSizeVirtualScrollStrategy` from the given directive.\n * @param fixedSizeDir The instance of `CdkFixedSizeVirtualScroll` to extract the\n * `FixedSizeVirtualScrollStrategy` from.\n */\nfunction _fixedSizeVirtualScrollStrategyFactory(fixedSizeDir) {\n return fixedSizeDir._scrollStrategy;\n}\n/** A virtual scroll strategy that supports fixed-size items. */\nclass CdkFixedSizeVirtualScroll {\n constructor() {\n this._itemSize = 20;\n this._minBufferPx = 100;\n this._maxBufferPx = 200;\n /** The scroll strategy used by this directive. */\n this._scrollStrategy = new FixedSizeVirtualScrollStrategy(this.itemSize, this.minBufferPx, this.maxBufferPx);\n }\n /** The size of the items in the list (in pixels). */\n get itemSize() {\n return this._itemSize;\n }\n set itemSize(value) {\n this._itemSize = coerceNumberProperty(value);\n }\n /**\n * The minimum amount of buffer rendered beyond the viewport (in pixels).\n * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.\n */\n get minBufferPx() {\n return this._minBufferPx;\n }\n set minBufferPx(value) {\n this._minBufferPx = coerceNumberProperty(value);\n }\n /**\n * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.\n */\n get maxBufferPx() {\n return this._maxBufferPx;\n }\n set maxBufferPx(value) {\n this._maxBufferPx = coerceNumberProperty(value);\n }\n ngOnChanges() {\n this._scrollStrategy.updateItemAndBufferSize(this.itemSize, this.minBufferPx, this.maxBufferPx);\n }\n}\nCdkFixedSizeVirtualScroll.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkFixedSizeVirtualScroll, deps: [], target: i0.ɵɵFactoryTarget.Directive });\nCdkFixedSizeVirtualScroll.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkFixedSizeVirtualScroll, selector: \"cdk-virtual-scroll-viewport[itemSize]\", inputs: { itemSize: \"itemSize\", minBufferPx: \"minBufferPx\", maxBufferPx: \"maxBufferPx\" }, providers: [\n {\n provide: VIRTUAL_SCROLL_STRATEGY,\n useFactory: _fixedSizeVirtualScrollStrategyFactory,\n deps: [forwardRef(() => CdkFixedSizeVirtualScroll)],\n },\n ], usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkFixedSizeVirtualScroll, decorators: [{\n type: Directive,\n args: [{\n selector: 'cdk-virtual-scroll-viewport[itemSize]',\n providers: [\n {\n provide: VIRTUAL_SCROLL_STRATEGY,\n useFactory: _fixedSizeVirtualScrollStrategyFactory,\n deps: [forwardRef(() => CdkFixedSizeVirtualScroll)],\n },\n ],\n }]\n }], propDecorators: { itemSize: [{\n type: Input\n }], minBufferPx: [{\n type: Input\n }], maxBufferPx: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Time in ms to throttle the scrolling events by default. */\nconst DEFAULT_SCROLL_TIME = 20;\n/**\n * Service contained all registered Scrollable references and emits an event when any one of the\n * Scrollable references emit a scrolled event.\n */\nclass ScrollDispatcher {\n constructor(_ngZone, _platform, document) {\n this._ngZone = _ngZone;\n this._platform = _platform;\n /** Subject for notifying that a registered scrollable reference element has been scrolled. */\n this._scrolled = new Subject();\n /** Keeps track of the global `scroll` and `resize` subscriptions. */\n this._globalSubscription = null;\n /** Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards. */\n this._scrolledCount = 0;\n /**\n * Map of all the scrollable references that are registered with the service and their\n * scroll event subscriptions.\n */\n this.scrollContainers = new Map();\n this._document = document;\n }\n /**\n * Registers a scrollable instance with the service and listens for its scrolled events. When the\n * scrollable is scrolled, the service emits the event to its scrolled observable.\n * @param scrollable Scrollable instance to be registered.\n */\n register(scrollable) {\n if (!this.scrollContainers.has(scrollable)) {\n this.scrollContainers.set(scrollable, scrollable.elementScrolled().subscribe(() => this._scrolled.next(scrollable)));\n }\n }\n /**\n * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n * @param scrollable Scrollable instance to be deregistered.\n */\n deregister(scrollable) {\n const scrollableReference = this.scrollContainers.get(scrollable);\n if (scrollableReference) {\n scrollableReference.unsubscribe();\n this.scrollContainers.delete(scrollable);\n }\n }\n /**\n * Returns an observable that emits an event whenever any of the registered Scrollable\n * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n * to override the default \"throttle\" time.\n *\n * **Note:** in order to avoid hitting change detection for every scroll event,\n * all of the events emitted from this stream will be run outside the Angular zone.\n * If you need to update any data bindings as a result of a scroll event, you have\n * to run the callback using `NgZone.run`.\n */\n scrolled(auditTimeInMs = DEFAULT_SCROLL_TIME) {\n if (!this._platform.isBrowser) {\n return of();\n }\n return new Observable((observer) => {\n if (!this._globalSubscription) {\n this._addGlobalListener();\n }\n // In the case of a 0ms delay, use an observable without auditTime\n // since it does add a perceptible delay in processing overhead.\n const subscription = auditTimeInMs > 0\n ? this._scrolled.pipe(auditTime(auditTimeInMs)).subscribe(observer)\n : this._scrolled.subscribe(observer);\n this._scrolledCount++;\n return () => {\n subscription.unsubscribe();\n this._scrolledCount--;\n if (!this._scrolledCount) {\n this._removeGlobalListener();\n }\n };\n });\n }\n ngOnDestroy() {\n this._removeGlobalListener();\n this.scrollContainers.forEach((_, container) => this.deregister(container));\n this._scrolled.complete();\n }\n /**\n * Returns an observable that emits whenever any of the\n * scrollable ancestors of an element are scrolled.\n * @param elementOrElementRef Element whose ancestors to listen for.\n * @param auditTimeInMs Time to throttle the scroll events.\n */\n ancestorScrolled(elementOrElementRef, auditTimeInMs) {\n const ancestors = this.getAncestorScrollContainers(elementOrElementRef);\n return this.scrolled(auditTimeInMs).pipe(filter(target => {\n return !target || ancestors.indexOf(target) > -1;\n }));\n }\n /** Returns all registered Scrollables that contain the provided element. */\n getAncestorScrollContainers(elementOrElementRef) {\n const scrollingContainers = [];\n this.scrollContainers.forEach((_subscription, scrollable) => {\n if (this._scrollableContainsElement(scrollable, elementOrElementRef)) {\n scrollingContainers.push(scrollable);\n }\n });\n return scrollingContainers;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n _getWindow() {\n return this._document.defaultView || window;\n }\n /** Returns true if the element is contained within the provided Scrollable. */\n _scrollableContainsElement(scrollable, elementOrElementRef) {\n let element = coerceElement(elementOrElementRef);\n let scrollableElement = scrollable.getElementRef().nativeElement;\n // Traverse through the element parents until we reach null, checking if any of the elements\n // are the scrollable's element.\n do {\n if (element == scrollableElement) {\n return true;\n }\n } while ((element = element.parentElement));\n return false;\n }\n /** Sets up the global scroll listeners. */\n _addGlobalListener() {\n this._globalSubscription = this._ngZone.runOutsideAngular(() => {\n const window = this._getWindow();\n return fromEvent(window.document, 'scroll').subscribe(() => this._scrolled.next());\n });\n }\n /** Cleans up the global scroll listener. */\n _removeGlobalListener() {\n if (this._globalSubscription) {\n this._globalSubscription.unsubscribe();\n this._globalSubscription = null;\n }\n }\n}\nScrollDispatcher.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollDispatcher, deps: [{ token: i0.NgZone }, { token: i1.Platform }, { token: DOCUMENT, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nScrollDispatcher.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollDispatcher, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollDispatcher, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i0.NgZone }, { type: i1.Platform }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Sends an event when the directive's element is scrolled. Registers itself with the\n * ScrollDispatcher service to include itself as part of its collection of scrolling events that it\n * can be listened to through the service.\n */\nclass CdkScrollable {\n constructor(elementRef, scrollDispatcher, ngZone, dir) {\n this.elementRef = elementRef;\n this.scrollDispatcher = scrollDispatcher;\n this.ngZone = ngZone;\n this.dir = dir;\n this._destroyed = new Subject();\n this._elementScrolled = new Observable((observer) => this.ngZone.runOutsideAngular(() => fromEvent(this.elementRef.nativeElement, 'scroll')\n .pipe(takeUntil(this._destroyed))\n .subscribe(observer)));\n }\n ngOnInit() {\n this.scrollDispatcher.register(this);\n }\n ngOnDestroy() {\n this.scrollDispatcher.deregister(this);\n this._destroyed.next();\n this._destroyed.complete();\n }\n /** Returns observable that emits when a scroll event is fired on the host element. */\n elementScrolled() {\n return this._elementScrolled;\n }\n /** Gets the ElementRef for the viewport. */\n getElementRef() {\n return this.elementRef;\n }\n /**\n * Scrolls to the specified offsets. This is a normalized version of the browser's native scrollTo\n * method, since browsers are not consistent about what scrollLeft means in RTL. For this method\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param options specified the offsets to scroll to.\n */\n scrollTo(options) {\n const el = this.elementRef.nativeElement;\n const isRtl = this.dir && this.dir.value == 'rtl';\n // Rewrite start & end offsets as right or left offsets.\n if (options.left == null) {\n options.left = isRtl ? options.end : options.start;\n }\n if (options.right == null) {\n options.right = isRtl ? options.start : options.end;\n }\n // Rewrite the bottom offset as a top offset.\n if (options.bottom != null) {\n options.top =\n el.scrollHeight - el.clientHeight - options.bottom;\n }\n // Rewrite the right offset as a left offset.\n if (isRtl && getRtlScrollAxisType() != 0 /* NORMAL */) {\n if (options.left != null) {\n options.right =\n el.scrollWidth - el.clientWidth - options.left;\n }\n if (getRtlScrollAxisType() == 2 /* INVERTED */) {\n options.left = options.right;\n }\n else if (getRtlScrollAxisType() == 1 /* NEGATED */) {\n options.left = options.right ? -options.right : options.right;\n }\n }\n else {\n if (options.right != null) {\n options.left =\n el.scrollWidth - el.clientWidth - options.right;\n }\n }\n this._applyScrollToOptions(options);\n }\n _applyScrollToOptions(options) {\n const el = this.elementRef.nativeElement;\n if (supportsScrollBehavior()) {\n el.scrollTo(options);\n }\n else {\n if (options.top != null) {\n el.scrollTop = options.top;\n }\n if (options.left != null) {\n el.scrollLeft = options.left;\n }\n }\n }\n /**\n * Measures the scroll offset relative to the specified edge of the viewport. This method can be\n * used instead of directly checking scrollLeft or scrollTop, since browsers are not consistent\n * about what scrollLeft means in RTL. The values returned by this method are normalized such that\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param from The edge to measure from.\n */\n measureScrollOffset(from) {\n const LEFT = 'left';\n const RIGHT = 'right';\n const el = this.elementRef.nativeElement;\n if (from == 'top') {\n return el.scrollTop;\n }\n if (from == 'bottom') {\n return el.scrollHeight - el.clientHeight - el.scrollTop;\n }\n // Rewrite start & end as left or right offsets.\n const isRtl = this.dir && this.dir.value == 'rtl';\n if (from == 'start') {\n from = isRtl ? RIGHT : LEFT;\n }\n else if (from == 'end') {\n from = isRtl ? LEFT : RIGHT;\n }\n if (isRtl && getRtlScrollAxisType() == 2 /* INVERTED */) {\n // For INVERTED, scrollLeft is (scrollWidth - clientWidth) when scrolled all the way left and\n // 0 when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollWidth - el.clientWidth - el.scrollLeft;\n }\n else {\n return el.scrollLeft;\n }\n }\n else if (isRtl && getRtlScrollAxisType() == 1 /* NEGATED */) {\n // For NEGATED, scrollLeft is -(scrollWidth - clientWidth) when scrolled all the way left and\n // 0 when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollLeft + el.scrollWidth - el.clientWidth;\n }\n else {\n return -el.scrollLeft;\n }\n }\n else {\n // For NORMAL, as well as non-RTL contexts, scrollLeft is 0 when scrolled all the way left and\n // (scrollWidth - clientWidth) when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollLeft;\n }\n else {\n return el.scrollWidth - el.clientWidth - el.scrollLeft;\n }\n }\n }\n}\nCdkScrollable.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkScrollable, deps: [{ token: i0.ElementRef }, { token: ScrollDispatcher }, { token: i0.NgZone }, { token: i2.Directionality, optional: true }], target: i0.ɵɵFactoryTarget.Directive });\nCdkScrollable.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkScrollable, selector: \"[cdk-scrollable], [cdkScrollable]\", ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkScrollable, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdk-scrollable], [cdkScrollable]',\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: ScrollDispatcher }, { type: i0.NgZone }, { type: i2.Directionality, decorators: [{\n type: Optional\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Time in ms to throttle the resize events by default. */\nconst DEFAULT_RESIZE_TIME = 20;\n/**\n * Simple utility for getting the bounds of the browser viewport.\n * @docs-private\n */\nclass ViewportRuler {\n constructor(_platform, ngZone, document) {\n this._platform = _platform;\n /** Stream of viewport change events. */\n this._change = new Subject();\n /** Event listener that will be used to handle the viewport change events. */\n this._changeListener = (event) => {\n this._change.next(event);\n };\n this._document = document;\n ngZone.runOutsideAngular(() => {\n if (_platform.isBrowser) {\n const window = this._getWindow();\n // Note that bind the events ourselves, rather than going through something like RxJS's\n // `fromEvent` so that we can ensure that they're bound outside of the NgZone.\n window.addEventListener('resize', this._changeListener);\n window.addEventListener('orientationchange', this._changeListener);\n }\n // Clear the cached position so that the viewport is re-measured next time it is required.\n // We don't need to keep track of the subscription, because it is completed on destroy.\n this.change().subscribe(() => (this._viewportSize = null));\n });\n }\n ngOnDestroy() {\n if (this._platform.isBrowser) {\n const window = this._getWindow();\n window.removeEventListener('resize', this._changeListener);\n window.removeEventListener('orientationchange', this._changeListener);\n }\n this._change.complete();\n }\n /** Returns the viewport's width and height. */\n getViewportSize() {\n if (!this._viewportSize) {\n this._updateViewportSize();\n }\n const output = { width: this._viewportSize.width, height: this._viewportSize.height };\n // If we're not on a browser, don't cache the size since it'll be mocked out anyway.\n if (!this._platform.isBrowser) {\n this._viewportSize = null;\n }\n return output;\n }\n /** Gets a ClientRect for the viewport's bounds. */\n getViewportRect() {\n // Use the document element's bounding rect rather than the window scroll properties\n // (e.g. pageYOffset, scrollY) due to in issue in Chrome and IE where window scroll\n // properties and client coordinates (boundingClientRect, clientX/Y, etc.) are in different\n // conceptual viewports. Under most circumstances these viewports are equivalent, but they\n // can disagree when the page is pinch-zoomed (on devices that support touch).\n // See https://bugs.chromium.org/p/chromium/issues/detail?id=489206#c4\n // We use the documentElement instead of the body because, by default (without a css reset)\n // browsers typically give the document body an 8px margin, which is not included in\n // getBoundingClientRect().\n const scrollPosition = this.getViewportScrollPosition();\n const { width, height } = this.getViewportSize();\n return {\n top: scrollPosition.top,\n left: scrollPosition.left,\n bottom: scrollPosition.top + height,\n right: scrollPosition.left + width,\n height,\n width,\n };\n }\n /** Gets the (top, left) scroll position of the viewport. */\n getViewportScrollPosition() {\n // While we can get a reference to the fake document\n // during SSR, it doesn't have getBoundingClientRect.\n if (!this._platform.isBrowser) {\n return { top: 0, left: 0 };\n }\n // The top-left-corner of the viewport is determined by the scroll position of the document\n // body, normally just (scrollLeft, scrollTop). However, Chrome and Firefox disagree about\n // whether `document.body` or `document.documentElement` is the scrolled element, so reading\n // `scrollTop` and `scrollLeft` is inconsistent. However, using the bounding rect of\n // `document.documentElement` works consistently, where the `top` and `left` values will\n // equal negative the scroll position.\n const document = this._document;\n const window = this._getWindow();\n const documentElement = document.documentElement;\n const documentRect = documentElement.getBoundingClientRect();\n const top = -documentRect.top ||\n document.body.scrollTop ||\n window.scrollY ||\n documentElement.scrollTop ||\n 0;\n const left = -documentRect.left ||\n document.body.scrollLeft ||\n window.scrollX ||\n documentElement.scrollLeft ||\n 0;\n return { top, left };\n }\n /**\n * Returns a stream that emits whenever the size of the viewport changes.\n * This stream emits outside of the Angular zone.\n * @param throttleTime Time in milliseconds to throttle the stream.\n */\n change(throttleTime = DEFAULT_RESIZE_TIME) {\n return throttleTime > 0 ? this._change.pipe(auditTime(throttleTime)) : this._change;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n _getWindow() {\n return this._document.defaultView || window;\n }\n /** Updates the cached viewport size. */\n _updateViewportSize() {\n const window = this._getWindow();\n this._viewportSize = this._platform.isBrowser\n ? { width: window.innerWidth, height: window.innerHeight }\n : { width: 0, height: 0 };\n }\n}\nViewportRuler.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ViewportRuler, deps: [{ token: i1.Platform }, { token: i0.NgZone }, { token: DOCUMENT, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nViewportRuler.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ViewportRuler, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ViewportRuler, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.Platform }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Checks if the given ranges are equal. */\nfunction rangesEqual(r1, r2) {\n return r1.start == r2.start && r1.end == r2.end;\n}\n/**\n * Scheduler to be used for scroll events. Needs to fall back to\n * something that doesn't rely on requestAnimationFrame on environments\n * that don't support it (e.g. server-side rendering).\n */\nconst SCROLL_SCHEDULER = typeof requestAnimationFrame !== 'undefined' ? animationFrameScheduler : asapScheduler;\n/** A viewport that virtualizes its scrolling with the help of `CdkVirtualForOf`. */\nclass CdkVirtualScrollViewport extends CdkScrollable {\n constructor(elementRef, _changeDetectorRef, ngZone, _scrollStrategy, dir, scrollDispatcher, viewportRuler) {\n super(elementRef, scrollDispatcher, ngZone, dir);\n this.elementRef = elementRef;\n this._changeDetectorRef = _changeDetectorRef;\n this._scrollStrategy = _scrollStrategy;\n /** Emits when the viewport is detached from a CdkVirtualForOf. */\n this._detachedSubject = new Subject();\n /** Emits when the rendered range changes. */\n this._renderedRangeSubject = new Subject();\n this._orientation = 'vertical';\n this._appendOnly = false;\n // Note: we don't use the typical EventEmitter here because we need to subscribe to the scroll\n // strategy lazily (i.e. only if the user is actually listening to the events). We do this because\n // depending on how the strategy calculates the scrolled index, it may come at a cost to\n // performance.\n /** Emits when the index of the first element visible in the viewport changes. */\n this.scrolledIndexChange = new Observable((observer) => this._scrollStrategy.scrolledIndexChange.subscribe(index => Promise.resolve().then(() => this.ngZone.run(() => observer.next(index)))));\n /** A stream that emits whenever the rendered range changes. */\n this.renderedRangeStream = this._renderedRangeSubject;\n /**\n * The total size of all content (in pixels), including content that is not currently rendered.\n */\n this._totalContentSize = 0;\n /** A string representing the `style.width` property value to be used for the spacer element. */\n this._totalContentWidth = '';\n /** A string representing the `style.height` property value to be used for the spacer element. */\n this._totalContentHeight = '';\n /** The currently rendered range of indices. */\n this._renderedRange = { start: 0, end: 0 };\n /** The length of the data bound to this viewport (in number of items). */\n this._dataLength = 0;\n /** The size of the viewport (in pixels). */\n this._viewportSize = 0;\n /** The last rendered content offset that was set. */\n this._renderedContentOffset = 0;\n /**\n * Whether the last rendered content offset was to the end of the content (and therefore needs to\n * be rewritten as an offset to the start of the content).\n */\n this._renderedContentOffsetNeedsRewrite = false;\n /** Whether there is a pending change detection cycle. */\n this._isChangeDetectionPending = false;\n /** A list of functions to run after the next change detection cycle. */\n this._runAfterChangeDetection = [];\n /** Subscription to changes in the viewport size. */\n this._viewportChanges = Subscription.EMPTY;\n if (!_scrollStrategy && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Error: cdk-virtual-scroll-viewport requires the \"itemSize\" property to be set.');\n }\n this._viewportChanges = viewportRuler.change().subscribe(() => {\n this.checkViewportSize();\n });\n }\n /** The direction the viewport scrolls. */\n get orientation() {\n return this._orientation;\n }\n set orientation(orientation) {\n if (this._orientation !== orientation) {\n this._orientation = orientation;\n this._calculateSpacerSize();\n }\n }\n /**\n * Whether rendered items should persist in the DOM after scrolling out of view. By default, items\n * will be removed.\n */\n get appendOnly() {\n return this._appendOnly;\n }\n set appendOnly(value) {\n this._appendOnly = coerceBooleanProperty(value);\n }\n ngOnInit() {\n super.ngOnInit();\n // It's still too early to measure the viewport at this point. Deferring with a promise allows\n // the Viewport to be rendered with the correct size before we measure. We run this outside the\n // zone to avoid causing more change detection cycles. We handle the change detection loop\n // ourselves instead.\n this.ngZone.runOutsideAngular(() => Promise.resolve().then(() => {\n this._measureViewportSize();\n this._scrollStrategy.attach(this);\n this.elementScrolled()\n .pipe(\n // Start off with a fake scroll event so we properly detect our initial position.\n startWith(null), \n // Collect multiple events into one until the next animation frame. This way if\n // there are multiple scroll events in the same frame we only need to recheck\n // our layout once.\n auditTime(0, SCROLL_SCHEDULER))\n .subscribe(() => this._scrollStrategy.onContentScrolled());\n this._markChangeDetectionNeeded();\n }));\n }\n ngOnDestroy() {\n this.detach();\n this._scrollStrategy.detach();\n // Complete all subjects\n this._renderedRangeSubject.complete();\n this._detachedSubject.complete();\n this._viewportChanges.unsubscribe();\n super.ngOnDestroy();\n }\n /** Attaches a `CdkVirtualScrollRepeater` to this viewport. */\n attach(forOf) {\n if (this._forOf && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('CdkVirtualScrollViewport is already attached.');\n }\n // Subscribe to the data stream of the CdkVirtualForOf to keep track of when the data length\n // changes. Run outside the zone to avoid triggering change detection, since we're managing the\n // change detection loop ourselves.\n this.ngZone.runOutsideAngular(() => {\n this._forOf = forOf;\n this._forOf.dataStream.pipe(takeUntil(this._detachedSubject)).subscribe(data => {\n const newLength = data.length;\n if (newLength !== this._dataLength) {\n this._dataLength = newLength;\n this._scrollStrategy.onDataLengthChanged();\n }\n this._doChangeDetection();\n });\n });\n }\n /** Detaches the current `CdkVirtualForOf`. */\n detach() {\n this._forOf = null;\n this._detachedSubject.next();\n }\n /** Gets the length of the data bound to this viewport (in number of items). */\n getDataLength() {\n return this._dataLength;\n }\n /** Gets the size of the viewport (in pixels). */\n getViewportSize() {\n return this._viewportSize;\n }\n // TODO(mmalerba): This is technically out of sync with what's really rendered until a render\n // cycle happens. I'm being careful to only call it after the render cycle is complete and before\n // setting it to something else, but its error prone and should probably be split into\n // `pendingRange` and `renderedRange`, the latter reflecting whats actually in the DOM.\n /** Get the current rendered range of items. */\n getRenderedRange() {\n return this._renderedRange;\n }\n /**\n * Sets the total size of all content (in pixels), including content that is not currently\n * rendered.\n */\n setTotalContentSize(size) {\n if (this._totalContentSize !== size) {\n this._totalContentSize = size;\n this._calculateSpacerSize();\n this._markChangeDetectionNeeded();\n }\n }\n /** Sets the currently rendered range of indices. */\n setRenderedRange(range) {\n if (!rangesEqual(this._renderedRange, range)) {\n if (this.appendOnly) {\n range = { start: 0, end: Math.max(this._renderedRange.end, range.end) };\n }\n this._renderedRangeSubject.next((this._renderedRange = range));\n this._markChangeDetectionNeeded(() => this._scrollStrategy.onContentRendered());\n }\n }\n /**\n * Gets the offset from the start of the viewport to the start of the rendered data (in pixels).\n */\n getOffsetToRenderedContentStart() {\n return this._renderedContentOffsetNeedsRewrite ? null : this._renderedContentOffset;\n }\n /**\n * Sets the offset from the start of the viewport to either the start or end of the rendered data\n * (in pixels).\n */\n setRenderedContentOffset(offset, to = 'to-start') {\n // For a horizontal viewport in a right-to-left language we need to translate along the x-axis\n // in the negative direction.\n const isRtl = this.dir && this.dir.value == 'rtl';\n const isHorizontal = this.orientation == 'horizontal';\n const axis = isHorizontal ? 'X' : 'Y';\n const axisDirection = isHorizontal && isRtl ? -1 : 1;\n let transform = `translate${axis}(${Number(axisDirection * offset)}px)`;\n this._renderedContentOffset = offset;\n if (to === 'to-end') {\n transform += ` translate${axis}(-100%)`;\n // The viewport should rewrite this as a `to-start` offset on the next render cycle. Otherwise\n // elements will appear to expand in the wrong direction (e.g. `mat-expansion-panel` would\n // expand upward).\n this._renderedContentOffsetNeedsRewrite = true;\n }\n if (this._renderedContentTransform != transform) {\n // We know this value is safe because we parse `offset` with `Number()` before passing it\n // into the string.\n this._renderedContentTransform = transform;\n this._markChangeDetectionNeeded(() => {\n if (this._renderedContentOffsetNeedsRewrite) {\n this._renderedContentOffset -= this.measureRenderedContentSize();\n this._renderedContentOffsetNeedsRewrite = false;\n this.setRenderedContentOffset(this._renderedContentOffset);\n }\n else {\n this._scrollStrategy.onRenderedOffsetChanged();\n }\n });\n }\n }\n /**\n * Scrolls to the given offset from the start of the viewport. Please note that this is not always\n * the same as setting `scrollTop` or `scrollLeft`. In a horizontal viewport with right-to-left\n * direction, this would be the equivalent of setting a fictional `scrollRight` property.\n * @param offset The offset to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n */\n scrollToOffset(offset, behavior = 'auto') {\n const options = { behavior };\n if (this.orientation === 'horizontal') {\n options.start = offset;\n }\n else {\n options.top = offset;\n }\n this.scrollTo(options);\n }\n /**\n * Scrolls to the offset for the given index.\n * @param index The index of the element to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n */\n scrollToIndex(index, behavior = 'auto') {\n this._scrollStrategy.scrollToIndex(index, behavior);\n }\n /**\n * Gets the current scroll offset from the start of the viewport (in pixels).\n * @param from The edge to measure the offset from. Defaults to 'top' in vertical mode and 'start'\n * in horizontal mode.\n */\n measureScrollOffset(from) {\n return from\n ? super.measureScrollOffset(from)\n : super.measureScrollOffset(this.orientation === 'horizontal' ? 'start' : 'top');\n }\n /** Measure the combined size of all of the rendered items. */\n measureRenderedContentSize() {\n const contentEl = this._contentWrapper.nativeElement;\n return this.orientation === 'horizontal' ? contentEl.offsetWidth : contentEl.offsetHeight;\n }\n /**\n * Measure the total combined size of the given range. Throws if the range includes items that are\n * not rendered.\n */\n measureRangeSize(range) {\n if (!this._forOf) {\n return 0;\n }\n return this._forOf.measureRangeSize(range, this.orientation);\n }\n /** Update the viewport dimensions and re-render. */\n checkViewportSize() {\n // TODO: Cleanup later when add logic for handling content resize\n this._measureViewportSize();\n this._scrollStrategy.onDataLengthChanged();\n }\n /** Measure the viewport size. */\n _measureViewportSize() {\n const viewportEl = this.elementRef.nativeElement;\n this._viewportSize =\n this.orientation === 'horizontal' ? viewportEl.clientWidth : viewportEl.clientHeight;\n }\n /** Queue up change detection to run. */\n _markChangeDetectionNeeded(runAfter) {\n if (runAfter) {\n this._runAfterChangeDetection.push(runAfter);\n }\n // Use a Promise to batch together calls to `_doChangeDetection`. This way if we set a bunch of\n // properties sequentially we only have to run `_doChangeDetection` once at the end.\n if (!this._isChangeDetectionPending) {\n this._isChangeDetectionPending = true;\n this.ngZone.runOutsideAngular(() => Promise.resolve().then(() => {\n this._doChangeDetection();\n }));\n }\n }\n /** Run change detection. */\n _doChangeDetection() {\n this._isChangeDetectionPending = false;\n // Apply the content transform. The transform can't be set via an Angular binding because\n // bypassSecurityTrustStyle is banned in Google. However the value is safe, it's composed of\n // string literals, a variable that can only be 'X' or 'Y', and user input that is run through\n // the `Number` function first to coerce it to a numeric value.\n this._contentWrapper.nativeElement.style.transform = this._renderedContentTransform;\n // Apply changes to Angular bindings. Note: We must call `markForCheck` to run change detection\n // from the root, since the repeated items are content projected in. Calling `detectChanges`\n // instead does not properly check the projected content.\n this.ngZone.run(() => this._changeDetectorRef.markForCheck());\n const runAfterChangeDetection = this._runAfterChangeDetection;\n this._runAfterChangeDetection = [];\n for (const fn of runAfterChangeDetection) {\n fn();\n }\n }\n /** Calculates the `style.width` and `style.height` for the spacer element. */\n _calculateSpacerSize() {\n this._totalContentHeight =\n this.orientation === 'horizontal' ? '' : `${this._totalContentSize}px`;\n this._totalContentWidth =\n this.orientation === 'horizontal' ? `${this._totalContentSize}px` : '';\n }\n}\nCdkVirtualScrollViewport.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkVirtualScrollViewport, deps: [{ token: i0.ElementRef }, { token: i0.ChangeDetectorRef }, { token: i0.NgZone }, { token: VIRTUAL_SCROLL_STRATEGY, optional: true }, { token: i2.Directionality, optional: true }, { token: ScrollDispatcher }, { token: ViewportRuler }], target: i0.ɵɵFactoryTarget.Component });\nCdkVirtualScrollViewport.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkVirtualScrollViewport, selector: \"cdk-virtual-scroll-viewport\", inputs: { orientation: \"orientation\", appendOnly: \"appendOnly\" }, outputs: { scrolledIndexChange: \"scrolledIndexChange\" }, host: { properties: { \"class.cdk-virtual-scroll-orientation-horizontal\": \"orientation === \\\"horizontal\\\"\", \"class.cdk-virtual-scroll-orientation-vertical\": \"orientation !== \\\"horizontal\\\"\" }, classAttribute: \"cdk-virtual-scroll-viewport\" }, providers: [\n {\n provide: CdkScrollable,\n useExisting: CdkVirtualScrollViewport,\n },\n ], viewQueries: [{ propertyName: \"_contentWrapper\", first: true, predicate: [\"contentWrapper\"], descendants: true, static: true }], usesInheritance: true, ngImport: i0, template: \"\\n
\\n\\n\\n\", styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"] }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.ChangeDetectorRef }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [VIRTUAL_SCROLL_STRATEGY]\n }] }, { type: i2.Directionality, decorators: [{\n type: Optional\n }] }, { type: ScrollDispatcher }, { type: ViewportRuler }]; }, propDecorators: { orientation: [{\n type: Input\n }], appendOnly: [{\n type: Input\n }], scrolledIndexChange: [{\n type: Output\n }], _contentWrapper: [{\n type: ViewChild,\n args: ['contentWrapper', { static: true }]\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Helper to extract the offset of a DOM Node in a certain direction. */\nfunction getOffset(orientation, direction, node) {\n const el = node;\n if (!el.getBoundingClientRect) {\n return 0;\n }\n const rect = el.getBoundingClientRect();\n if (orientation === 'horizontal') {\n return direction === 'start' ? rect.left : rect.right;\n }\n return direction === 'start' ? rect.top : rect.bottom;\n}\n/**\n * A directive similar to `ngForOf` to be used for rendering data inside a virtual scrolling\n * container.\n */\nclass CdkVirtualForOf {\n constructor(\n /** The view container to add items to. */\n _viewContainerRef, \n /** The template to use when stamping out new items. */\n _template, \n /** The set of available differs. */\n _differs, \n /** The strategy used to render items in the virtual scroll viewport. */\n _viewRepeater, \n /** The virtual scrolling viewport that these items are being rendered in. */\n _viewport, ngZone) {\n this._viewContainerRef = _viewContainerRef;\n this._template = _template;\n this._differs = _differs;\n this._viewRepeater = _viewRepeater;\n this._viewport = _viewport;\n /** Emits when the rendered view of the data changes. */\n this.viewChange = new Subject();\n /** Subject that emits when a new DataSource instance is given. */\n this._dataSourceChanges = new Subject();\n /** Emits whenever the data in the current DataSource changes. */\n this.dataStream = this._dataSourceChanges.pipe(\n // Start off with null `DataSource`.\n startWith(null), \n // Bundle up the previous and current data sources so we can work with both.\n pairwise(), \n // Use `_changeDataSource` to disconnect from the previous data source and connect to the\n // new one, passing back a stream of data changes which we run through `switchMap` to give\n // us a data stream that emits the latest data from whatever the current `DataSource` is.\n switchMap(([prev, cur]) => this._changeDataSource(prev, cur)), \n // Replay the last emitted data when someone subscribes.\n shareReplay(1));\n /** The differ used to calculate changes to the data. */\n this._differ = null;\n /** Whether the rendered data should be updated during the next ngDoCheck cycle. */\n this._needsUpdate = false;\n this._destroyed = new Subject();\n this.dataStream.subscribe(data => {\n this._data = data;\n this._onRenderedDataChange();\n });\n this._viewport.renderedRangeStream.pipe(takeUntil(this._destroyed)).subscribe(range => {\n this._renderedRange = range;\n ngZone.run(() => this.viewChange.next(this._renderedRange));\n this._onRenderedDataChange();\n });\n this._viewport.attach(this);\n }\n /** The DataSource to display. */\n get cdkVirtualForOf() {\n return this._cdkVirtualForOf;\n }\n set cdkVirtualForOf(value) {\n this._cdkVirtualForOf = value;\n if (isDataSource(value)) {\n this._dataSourceChanges.next(value);\n }\n else {\n // If value is an an NgIterable, convert it to an array.\n this._dataSourceChanges.next(new ArrayDataSource(isObservable(value) ? value : Array.from(value || [])));\n }\n }\n /**\n * The `TrackByFunction` to use for tracking changes. The `TrackByFunction` takes the index and\n * the item and produces a value to be used as the item's identity when tracking changes.\n */\n get cdkVirtualForTrackBy() {\n return this._cdkVirtualForTrackBy;\n }\n set cdkVirtualForTrackBy(fn) {\n this._needsUpdate = true;\n this._cdkVirtualForTrackBy = fn\n ? (index, item) => fn(index + (this._renderedRange ? this._renderedRange.start : 0), item)\n : undefined;\n }\n /** The template used to stamp out new elements. */\n set cdkVirtualForTemplate(value) {\n if (value) {\n this._needsUpdate = true;\n this._template = value;\n }\n }\n /**\n * The size of the cache used to store templates that are not being used for re-use later.\n * Setting the cache size to `0` will disable caching. Defaults to 20 templates.\n */\n get cdkVirtualForTemplateCacheSize() {\n return this._viewRepeater.viewCacheSize;\n }\n set cdkVirtualForTemplateCacheSize(size) {\n this._viewRepeater.viewCacheSize = coerceNumberProperty(size);\n }\n /**\n * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n * in the specified range. Throws an error if the range includes items that are not currently\n * rendered.\n */\n measureRangeSize(range, orientation) {\n if (range.start >= range.end) {\n return 0;\n }\n if ((range.start < this._renderedRange.start || range.end > this._renderedRange.end) &&\n (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error(`Error: attempted to measure an item that isn't rendered.`);\n }\n // The index into the list of rendered views for the first item in the range.\n const renderedStartIndex = range.start - this._renderedRange.start;\n // The length of the range we're measuring.\n const rangeLen = range.end - range.start;\n // Loop over all the views, find the first and land node and compute the size by subtracting\n // the top of the first node from the bottom of the last one.\n let firstNode;\n let lastNode;\n // Find the first node by starting from the beginning and going forwards.\n for (let i = 0; i < rangeLen; i++) {\n const view = this._viewContainerRef.get(i + renderedStartIndex);\n if (view && view.rootNodes.length) {\n firstNode = lastNode = view.rootNodes[0];\n break;\n }\n }\n // Find the last node by starting from the end and going backwards.\n for (let i = rangeLen - 1; i > -1; i--) {\n const view = this._viewContainerRef.get(i + renderedStartIndex);\n if (view && view.rootNodes.length) {\n lastNode = view.rootNodes[view.rootNodes.length - 1];\n break;\n }\n }\n return firstNode && lastNode\n ? getOffset(orientation, 'end', lastNode) - getOffset(orientation, 'start', firstNode)\n : 0;\n }\n ngDoCheck() {\n if (this._differ && this._needsUpdate) {\n // TODO(mmalerba): We should differentiate needs update due to scrolling and a new portion of\n // this list being rendered (can use simpler algorithm) vs needs update due to data actually\n // changing (need to do this diff).\n const changes = this._differ.diff(this._renderedItems);\n if (!changes) {\n this._updateContext();\n }\n else {\n this._applyChanges(changes);\n }\n this._needsUpdate = false;\n }\n }\n ngOnDestroy() {\n this._viewport.detach();\n this._dataSourceChanges.next(undefined);\n this._dataSourceChanges.complete();\n this.viewChange.complete();\n this._destroyed.next();\n this._destroyed.complete();\n this._viewRepeater.detach();\n }\n /** React to scroll state changes in the viewport. */\n _onRenderedDataChange() {\n if (!this._renderedRange) {\n return;\n }\n this._renderedItems = this._data.slice(this._renderedRange.start, this._renderedRange.end);\n if (!this._differ) {\n // Use a wrapper function for the `trackBy` so any new values are\n // picked up automatically without having to recreate the differ.\n this._differ = this._differs.find(this._renderedItems).create((index, item) => {\n return this.cdkVirtualForTrackBy ? this.cdkVirtualForTrackBy(index, item) : item;\n });\n }\n this._needsUpdate = true;\n }\n /** Swap out one `DataSource` for another. */\n _changeDataSource(oldDs, newDs) {\n if (oldDs) {\n oldDs.disconnect(this);\n }\n this._needsUpdate = true;\n return newDs ? newDs.connect(this) : of();\n }\n /** Update the `CdkVirtualForOfContext` for all views. */\n _updateContext() {\n const count = this._data.length;\n let i = this._viewContainerRef.length;\n while (i--) {\n const view = this._viewContainerRef.get(i);\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n this._updateComputedContextProperties(view.context);\n view.detectChanges();\n }\n }\n /** Apply changes to the DOM. */\n _applyChanges(changes) {\n this._viewRepeater.applyChanges(changes, this._viewContainerRef, (record, _adjustedPreviousIndex, currentIndex) => this._getEmbeddedViewArgs(record, currentIndex), record => record.item);\n // Update $implicit for any items that had an identity change.\n changes.forEachIdentityChange((record) => {\n const view = this._viewContainerRef.get(record.currentIndex);\n view.context.$implicit = record.item;\n });\n // Update the context variables on all items.\n const count = this._data.length;\n let i = this._viewContainerRef.length;\n while (i--) {\n const view = this._viewContainerRef.get(i);\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n this._updateComputedContextProperties(view.context);\n }\n }\n /** Update the computed properties on the `CdkVirtualForOfContext`. */\n _updateComputedContextProperties(context) {\n context.first = context.index === 0;\n context.last = context.index === context.count - 1;\n context.even = context.index % 2 === 0;\n context.odd = !context.even;\n }\n _getEmbeddedViewArgs(record, index) {\n // Note that it's important that we insert the item directly at the proper index,\n // rather than inserting it and the moving it in place, because if there's a directive\n // on the same node that injects the `ViewContainerRef`, Angular will insert another\n // comment node which can throw off the move when it's being repeated for all items.\n return {\n templateRef: this._template,\n context: {\n $implicit: record.item,\n // It's guaranteed that the iterable is not \"undefined\" or \"null\" because we only\n // generate views for elements if the \"cdkVirtualForOf\" iterable has elements.\n cdkVirtualForOf: this._cdkVirtualForOf,\n index: -1,\n count: -1,\n first: false,\n last: false,\n odd: false,\n even: false,\n },\n index,\n };\n }\n}\nCdkVirtualForOf.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkVirtualForOf, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: i0.IterableDiffers }, { token: _VIEW_REPEATER_STRATEGY }, { token: CdkVirtualScrollViewport, skipSelf: true }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Directive });\nCdkVirtualForOf.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkVirtualForOf, selector: \"[cdkVirtualFor][cdkVirtualForOf]\", inputs: { cdkVirtualForOf: \"cdkVirtualForOf\", cdkVirtualForTrackBy: \"cdkVirtualForTrackBy\", cdkVirtualForTemplate: \"cdkVirtualForTemplate\", cdkVirtualForTemplateCacheSize: \"cdkVirtualForTemplateCacheSize\" }, providers: [{ provide: _VIEW_REPEATER_STRATEGY, useClass: _RecycleViewRepeaterStrategy }], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkVirtualForOf, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkVirtualFor][cdkVirtualForOf]',\n providers: [{ provide: _VIEW_REPEATER_STRATEGY, useClass: _RecycleViewRepeaterStrategy }],\n }]\n }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: i0.IterableDiffers }, { type: i2$1._RecycleViewRepeaterStrategy, decorators: [{\n type: Inject,\n args: [_VIEW_REPEATER_STRATEGY]\n }] }, { type: CdkVirtualScrollViewport, decorators: [{\n type: SkipSelf\n }] }, { type: i0.NgZone }]; }, propDecorators: { cdkVirtualForOf: [{\n type: Input\n }], cdkVirtualForTrackBy: [{\n type: Input\n }], cdkVirtualForTemplate: [{\n type: Input\n }], cdkVirtualForTemplateCacheSize: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass CdkScrollableModule {\n}\nCdkScrollableModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkScrollableModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nCdkScrollableModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkScrollableModule, declarations: [CdkScrollable], exports: [CdkScrollable] });\nCdkScrollableModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkScrollableModule });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkScrollableModule, decorators: [{\n type: NgModule,\n args: [{\n exports: [CdkScrollable],\n declarations: [CdkScrollable],\n }]\n }] });\n/**\n * @docs-primary-export\n */\nclass ScrollingModule {\n}\nScrollingModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollingModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nScrollingModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollingModule, declarations: [CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport], imports: [BidiModule, PlatformModule, CdkScrollableModule], exports: [BidiModule, CdkScrollableModule, CdkFixedSizeVirtualScroll,\n CdkVirtualForOf,\n CdkVirtualScrollViewport] });\nScrollingModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollingModule, imports: [[BidiModule, PlatformModule, CdkScrollableModule], BidiModule, CdkScrollableModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ScrollingModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [BidiModule, PlatformModule, CdkScrollableModule],\n exports: [\n BidiModule,\n CdkScrollableModule,\n CdkFixedSizeVirtualScroll,\n CdkVirtualForOf,\n CdkVirtualScrollViewport,\n ],\n declarations: [CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { CdkFixedSizeVirtualScroll, CdkScrollable, CdkScrollableModule, CdkVirtualForOf, CdkVirtualScrollViewport, DEFAULT_RESIZE_TIME, DEFAULT_SCROLL_TIME, FixedSizeVirtualScrollStrategy, ScrollDispatcher, ScrollingModule, VIRTUAL_SCROLL_STRATEGY, ViewportRuler, _fixedSizeVirtualScrollStrategyFactory };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/9fb2c7badc47d0b343f733008a56e657.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/9fb2c7badc47d0b343f733008a56e657.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/9fb2c7badc47d0b343f733008a56e657.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { Directive, Input, NgModule } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { DomHandler, ConnectedOverlayScrollHandler } from 'primeng/dom';\nimport { ZIndexUtils } from 'primeng/utils';\nimport * as i1 from 'primeng/api';\n\nclass Tooltip {\n constructor(el, zone, config) {\n this.el = el;\n this.zone = zone;\n this.config = config;\n this.escape = true;\n this._tooltipOptions = {\n tooltipPosition: 'right',\n tooltipEvent: 'hover',\n appendTo: 'body',\n tooltipZIndex: 'auto',\n escape: false,\n positionTop: 0,\n positionLeft: 0\n };\n }\n\n get disabled() {\n return this._disabled;\n }\n\n set disabled(val) {\n this._disabled = val;\n this.deactivate();\n }\n\n ngAfterViewInit() {\n this.zone.runOutsideAngular(() => {\n if (this.getOption('tooltipEvent') === 'hover') {\n this.mouseEnterListener = this.onMouseEnter.bind(this);\n this.mouseLeaveListener = this.onMouseLeave.bind(this);\n this.clickListener = this.onClick.bind(this);\n this.el.nativeElement.addEventListener('mouseenter', this.mouseEnterListener);\n this.el.nativeElement.addEventListener('mouseleave', this.mouseLeaveListener);\n this.el.nativeElement.addEventListener('click', this.clickListener);\n } else if (this.getOption('tooltipEvent') === 'focus') {\n this.focusListener = this.onFocus.bind(this);\n this.blurListener = this.onBlur.bind(this);\n this.el.nativeElement.addEventListener('focus', this.focusListener);\n this.el.nativeElement.addEventListener('blur', this.blurListener);\n }\n });\n }\n\n ngOnChanges(simpleChange) {\n if (simpleChange.tooltipPosition) {\n this.setOption({\n tooltipPosition: simpleChange.tooltipPosition.currentValue\n });\n }\n\n if (simpleChange.tooltipEvent) {\n this.setOption({\n tooltipEvent: simpleChange.tooltipEvent.currentValue\n });\n }\n\n if (simpleChange.appendTo) {\n this.setOption({\n appendTo: simpleChange.appendTo.currentValue\n });\n }\n\n if (simpleChange.positionStyle) {\n this.setOption({\n positionStyle: simpleChange.positionStyle.currentValue\n });\n }\n\n if (simpleChange.tooltipStyleClass) {\n this.setOption({\n tooltipStyleClass: simpleChange.tooltipStyleClass.currentValue\n });\n }\n\n if (simpleChange.tooltipZIndex) {\n this.setOption({\n tooltipZIndex: simpleChange.tooltipZIndex.currentValue\n });\n }\n\n if (simpleChange.escape) {\n this.setOption({\n escape: simpleChange.escape.currentValue\n });\n }\n\n if (simpleChange.showDelay) {\n this.setOption({\n showDelay: simpleChange.showDelay.currentValue\n });\n }\n\n if (simpleChange.hideDelay) {\n this.setOption({\n hideDelay: simpleChange.hideDelay.currentValue\n });\n }\n\n if (simpleChange.life) {\n this.setOption({\n life: simpleChange.life.currentValue\n });\n }\n\n if (simpleChange.positionTop) {\n this.setOption({\n positionTop: simpleChange.positionTop.currentValue\n });\n }\n\n if (simpleChange.positionLeft) {\n this.setOption({\n positionLeft: simpleChange.positionLeft.currentValue\n });\n }\n\n if (simpleChange.disabled) {\n this.setOption({\n disabled: simpleChange.disabled.currentValue\n });\n }\n\n if (simpleChange.text) {\n this.setOption({\n tooltipLabel: simpleChange.text.currentValue\n });\n\n if (this.active) {\n if (simpleChange.text.currentValue) {\n if (this.container && this.container.offsetParent) {\n this.updateText();\n this.align();\n } else {\n this.show();\n }\n } else {\n this.hide();\n }\n }\n }\n\n if (simpleChange.tooltipOptions) {\n this._tooltipOptions = { ...this._tooltipOptions,\n ...simpleChange.tooltipOptions.currentValue\n };\n this.deactivate();\n\n if (this.active) {\n if (this.getOption('tooltipLabel')) {\n if (this.container && this.container.offsetParent) {\n this.updateText();\n this.align();\n } else {\n this.show();\n }\n } else {\n this.hide();\n }\n }\n }\n }\n\n onMouseEnter(e) {\n if (!this.container && !this.showTimeout) {\n this.activate();\n }\n }\n\n onMouseLeave(e) {\n this.deactivate();\n }\n\n onFocus(e) {\n this.activate();\n }\n\n onBlur(e) {\n this.deactivate();\n }\n\n onClick(e) {\n this.deactivate();\n }\n\n activate() {\n this.active = true;\n this.clearHideTimeout();\n if (this.getOption('showDelay')) this.showTimeout = setTimeout(() => {\n this.show();\n }, this.getOption('showDelay'));else this.show();\n\n if (this.getOption('life')) {\n let duration = this.getOption('showDelay') ? this.getOption('life') + this.getOption('showDelay') : this.getOption('life');\n this.hideTimeout = setTimeout(() => {\n this.hide();\n }, duration);\n }\n }\n\n deactivate() {\n this.active = false;\n this.clearShowTimeout();\n\n if (this.getOption('hideDelay')) {\n this.clearHideTimeout(); //life timeout\n\n this.hideTimeout = setTimeout(() => {\n this.hide();\n }, this.getOption('hideDelay'));\n } else {\n this.hide();\n }\n }\n\n create() {\n if (this.container) {\n this.clearHideTimeout();\n this.remove();\n }\n\n this.container = document.createElement('div');\n let tooltipArrow = document.createElement('div');\n tooltipArrow.className = 'p-tooltip-arrow';\n this.container.appendChild(tooltipArrow);\n this.tooltipText = document.createElement('div');\n this.tooltipText.className = 'p-tooltip-text';\n this.updateText();\n\n if (this.getOption('positionStyle')) {\n this.container.style.position = this.getOption('positionStyle');\n }\n\n this.container.appendChild(this.tooltipText);\n if (this.getOption('appendTo') === 'body') document.body.appendChild(this.container);else if (this.getOption('appendTo') === 'target') DomHandler.appendChild(this.container, this.el.nativeElement);else DomHandler.appendChild(this.container, this.getOption('appendTo'));\n this.container.style.display = 'inline-block';\n }\n\n show() {\n if (!this.getOption('tooltipLabel') || this.getOption('disabled')) {\n return;\n }\n\n this.create();\n this.align();\n DomHandler.fadeIn(this.container, 250);\n if (this.getOption('tooltipZIndex') === 'auto') ZIndexUtils.set('tooltip', this.container, this.config.zIndex.tooltip);else this.container.style.zIndex = this.getOption('tooltipZIndex');\n this.bindDocumentResizeListener();\n this.bindScrollListener();\n }\n\n hide() {\n if (this.getOption('tooltipZIndex') === 'auto') {\n ZIndexUtils.clear(this.container);\n }\n\n this.remove();\n }\n\n updateText() {\n if (this.getOption('escape')) {\n this.tooltipText.innerHTML = '';\n this.tooltipText.appendChild(document.createTextNode(this.getOption('tooltipLabel')));\n } else {\n this.tooltipText.innerHTML = this.getOption('tooltipLabel');\n }\n }\n\n align() {\n let position = this.getOption('tooltipPosition');\n\n switch (position) {\n case 'top':\n this.alignTop();\n\n if (this.isOutOfBounds()) {\n this.alignBottom();\n\n if (this.isOutOfBounds()) {\n this.alignRight();\n\n if (this.isOutOfBounds()) {\n this.alignLeft();\n }\n }\n }\n\n break;\n\n case 'bottom':\n this.alignBottom();\n\n if (this.isOutOfBounds()) {\n this.alignTop();\n\n if (this.isOutOfBounds()) {\n this.alignRight();\n\n if (this.isOutOfBounds()) {\n this.alignLeft();\n }\n }\n }\n\n break;\n\n case 'left':\n this.alignLeft();\n\n if (this.isOutOfBounds()) {\n this.alignRight();\n\n if (this.isOutOfBounds()) {\n this.alignTop();\n\n if (this.isOutOfBounds()) {\n this.alignBottom();\n }\n }\n }\n\n break;\n\n case 'right':\n this.alignRight();\n\n if (this.isOutOfBounds()) {\n this.alignLeft();\n\n if (this.isOutOfBounds()) {\n this.alignTop();\n\n if (this.isOutOfBounds()) {\n this.alignBottom();\n }\n }\n }\n\n break;\n }\n }\n\n getHostOffset() {\n if (this.getOption('appendTo') === 'body' || this.getOption('appendTo') === 'target') {\n let offset = this.el.nativeElement.getBoundingClientRect();\n let targetLeft = offset.left + DomHandler.getWindowScrollLeft();\n let targetTop = offset.top + DomHandler.getWindowScrollTop();\n return {\n left: targetLeft,\n top: targetTop\n };\n } else {\n return {\n left: 0,\n top: 0\n };\n }\n }\n\n alignRight() {\n this.preAlign('right');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left + DomHandler.getOuterWidth(this.el.nativeElement);\n let top = hostOffset.top + (DomHandler.getOuterHeight(this.el.nativeElement) - DomHandler.getOuterHeight(this.container)) / 2;\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n\n alignLeft() {\n this.preAlign('left');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left - DomHandler.getOuterWidth(this.container);\n let top = hostOffset.top + (DomHandler.getOuterHeight(this.el.nativeElement) - DomHandler.getOuterHeight(this.container)) / 2;\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n\n alignTop() {\n this.preAlign('top');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left + (DomHandler.getOuterWidth(this.el.nativeElement) - DomHandler.getOuterWidth(this.container)) / 2;\n let top = hostOffset.top - DomHandler.getOuterHeight(this.container);\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n\n alignBottom() {\n this.preAlign('bottom');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left + (DomHandler.getOuterWidth(this.el.nativeElement) - DomHandler.getOuterWidth(this.container)) / 2;\n let top = hostOffset.top + DomHandler.getOuterHeight(this.el.nativeElement);\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n\n setOption(option) {\n this._tooltipOptions = { ...this._tooltipOptions,\n ...option\n };\n }\n\n getOption(option) {\n return this._tooltipOptions[option];\n }\n\n preAlign(position) {\n this.container.style.left = -999 + 'px';\n this.container.style.top = -999 + 'px';\n let defaultClassName = 'p-tooltip p-component p-tooltip-' + position;\n this.container.className = this.getOption('tooltipStyleClass') ? defaultClassName + ' ' + this.getOption('tooltipStyleClass') : defaultClassName;\n }\n\n isOutOfBounds() {\n let offset = this.container.getBoundingClientRect();\n let targetTop = offset.top;\n let targetLeft = offset.left;\n let width = DomHandler.getOuterWidth(this.container);\n let height = DomHandler.getOuterHeight(this.container);\n let viewport = DomHandler.getViewport();\n return targetLeft + width > viewport.width || targetLeft < 0 || targetTop < 0 || targetTop + height > viewport.height;\n }\n\n onWindowResize(e) {\n this.hide();\n }\n\n bindDocumentResizeListener() {\n this.zone.runOutsideAngular(() => {\n this.resizeListener = this.onWindowResize.bind(this);\n window.addEventListener('resize', this.resizeListener);\n });\n }\n\n unbindDocumentResizeListener() {\n if (this.resizeListener) {\n window.removeEventListener('resize', this.resizeListener);\n this.resizeListener = null;\n }\n }\n\n bindScrollListener() {\n if (!this.scrollHandler) {\n this.scrollHandler = new ConnectedOverlayScrollHandler(this.el.nativeElement, () => {\n if (this.container) {\n this.hide();\n }\n });\n }\n\n this.scrollHandler.bindScrollListener();\n }\n\n unbindScrollListener() {\n if (this.scrollHandler) {\n this.scrollHandler.unbindScrollListener();\n }\n }\n\n unbindEvents() {\n if (this.getOption('tooltipEvent') === 'hover') {\n this.el.nativeElement.removeEventListener('mouseenter', this.mouseEnterListener);\n this.el.nativeElement.removeEventListener('mouseleave', this.mouseLeaveListener);\n this.el.nativeElement.removeEventListener('click', this.clickListener);\n } else if (this.getOption('tooltipEvent') === 'focus') {\n this.el.nativeElement.removeEventListener('focus', this.focusListener);\n this.el.nativeElement.removeEventListener('blur', this.blurListener);\n }\n\n this.unbindDocumentResizeListener();\n }\n\n remove() {\n if (this.container && this.container.parentElement) {\n if (this.getOption('appendTo') === 'body') document.body.removeChild(this.container);else if (this.getOption('appendTo') === 'target') this.el.nativeElement.removeChild(this.container);else DomHandler.removeChild(this.container, this.getOption('appendTo'));\n }\n\n this.unbindDocumentResizeListener();\n this.unbindScrollListener();\n this.clearTimeouts();\n this.container = null;\n this.scrollHandler = null;\n }\n\n clearShowTimeout() {\n if (this.showTimeout) {\n clearTimeout(this.showTimeout);\n this.showTimeout = null;\n }\n }\n\n clearHideTimeout() {\n if (this.hideTimeout) {\n clearTimeout(this.hideTimeout);\n this.hideTimeout = null;\n }\n }\n\n clearTimeouts() {\n this.clearShowTimeout();\n this.clearHideTimeout();\n }\n\n ngOnDestroy() {\n this.unbindEvents();\n\n if (this.container) {\n ZIndexUtils.clear(this.container);\n }\n\n this.remove();\n\n if (this.scrollHandler) {\n this.scrollHandler.destroy();\n this.scrollHandler = null;\n }\n }\n\n}\n\nTooltip.ɵfac = function Tooltip_Factory(t) {\n return new (t || Tooltip)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i0.NgZone), i0.ɵɵdirectiveInject(i1.PrimeNGConfig));\n};\n\nTooltip.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: Tooltip,\n selectors: [[\"\", \"pTooltip\", \"\"]],\n hostAttrs: [1, \"p-element\"],\n inputs: {\n tooltipPosition: \"tooltipPosition\",\n tooltipEvent: \"tooltipEvent\",\n appendTo: \"appendTo\",\n positionStyle: \"positionStyle\",\n tooltipStyleClass: \"tooltipStyleClass\",\n tooltipZIndex: \"tooltipZIndex\",\n escape: \"escape\",\n showDelay: \"showDelay\",\n hideDelay: \"hideDelay\",\n life: \"life\",\n positionTop: \"positionTop\",\n positionLeft: \"positionLeft\",\n text: [\"pTooltip\", \"text\"],\n disabled: [\"tooltipDisabled\", \"disabled\"],\n tooltipOptions: \"tooltipOptions\"\n },\n features: [i0.ɵɵNgOnChangesFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Tooltip, [{\n type: Directive,\n args: [{\n selector: '[pTooltip]',\n host: {\n 'class': 'p-element'\n }\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: i0.NgZone\n }, {\n type: i1.PrimeNGConfig\n }];\n }, {\n tooltipPosition: [{\n type: Input\n }],\n tooltipEvent: [{\n type: Input\n }],\n appendTo: [{\n type: Input\n }],\n positionStyle: [{\n type: Input\n }],\n tooltipStyleClass: [{\n type: Input\n }],\n tooltipZIndex: [{\n type: Input\n }],\n escape: [{\n type: Input\n }],\n showDelay: [{\n type: Input\n }],\n hideDelay: [{\n type: Input\n }],\n life: [{\n type: Input\n }],\n positionTop: [{\n type: Input\n }],\n positionLeft: [{\n type: Input\n }],\n text: [{\n type: Input,\n args: ['pTooltip']\n }],\n disabled: [{\n type: Input,\n args: [\"tooltipDisabled\"]\n }],\n tooltipOptions: [{\n type: Input\n }]\n });\n})();\n\nclass TooltipModule {}\n\nTooltipModule.ɵfac = function TooltipModule_Factory(t) {\n return new (t || TooltipModule)();\n};\n\nTooltipModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: TooltipModule\n});\nTooltipModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n imports: [[CommonModule]]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(TooltipModule, [{\n type: NgModule,\n args: [{\n imports: [CommonModule],\n exports: [Tooltip],\n declarations: [Tooltip]\n }]\n }], null, null);\n})();\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { Tooltip, TooltipModule 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this.onClick.bind(this);\n this.el.nativeElement.addEventListener('mouseenter', this.mouseEnterListener);\n this.el.nativeElement.addEventListener('mouseleave', this.mouseLeaveListener);\n this.el.nativeElement.addEventListener('click', this.clickListener);\n }\n else if (this.getOption('tooltipEvent') === 'focus') {\n this.focusListener = this.onFocus.bind(this);\n this.blurListener = this.onBlur.bind(this);\n this.el.nativeElement.addEventListener('focus', this.focusListener);\n this.el.nativeElement.addEventListener('blur', this.blurListener);\n }\n });\n }\n ngOnChanges(simpleChange) {\n if (simpleChange.tooltipPosition) {\n this.setOption({ tooltipPosition: simpleChange.tooltipPosition.currentValue });\n }\n if (simpleChange.tooltipEvent) {\n this.setOption({ tooltipEvent: simpleChange.tooltipEvent.currentValue });\n }\n if (simpleChange.appendTo) {\n this.setOption({ appendTo: simpleChange.appendTo.currentValue });\n }\n if (simpleChange.positionStyle) {\n this.setOption({ positionStyle: simpleChange.positionStyle.currentValue });\n }\n if (simpleChange.tooltipStyleClass) {\n this.setOption({ tooltipStyleClass: simpleChange.tooltipStyleClass.currentValue });\n }\n if (simpleChange.tooltipZIndex) {\n this.setOption({ tooltipZIndex: simpleChange.tooltipZIndex.currentValue });\n }\n if (simpleChange.escape) {\n this.setOption({ escape: simpleChange.escape.currentValue });\n }\n if (simpleChange.showDelay) {\n this.setOption({ showDelay: simpleChange.showDelay.currentValue });\n }\n if (simpleChange.hideDelay) {\n this.setOption({ hideDelay: simpleChange.hideDelay.currentValue });\n }\n if (simpleChange.life) {\n this.setOption({ life: simpleChange.life.currentValue });\n }\n if (simpleChange.positionTop) {\n this.setOption({ positionTop: simpleChange.positionTop.currentValue });\n }\n if (simpleChange.positionLeft) {\n this.setOption({ positionLeft: simpleChange.positionLeft.currentValue });\n }\n if (simpleChange.disabled) {\n this.setOption({ disabled: simpleChange.disabled.currentValue });\n }\n if (simpleChange.text) {\n this.setOption({ tooltipLabel: simpleChange.text.currentValue });\n if (this.active) {\n if (simpleChange.text.currentValue) {\n if (this.container && this.container.offsetParent) {\n this.updateText();\n this.align();\n }\n else {\n this.show();\n }\n }\n else {\n this.hide();\n }\n }\n }\n if (simpleChange.tooltipOptions) {\n this._tooltipOptions = { ...this._tooltipOptions, ...simpleChange.tooltipOptions.currentValue };\n this.deactivate();\n if (this.active) {\n if (this.getOption('tooltipLabel')) {\n if (this.container && this.container.offsetParent) {\n this.updateText();\n this.align();\n }\n else {\n this.show();\n }\n }\n else {\n this.hide();\n }\n }\n }\n }\n onMouseEnter(e) {\n if (!this.container && !this.showTimeout) {\n this.activate();\n }\n }\n onMouseLeave(e) {\n this.deactivate();\n }\n onFocus(e) {\n this.activate();\n }\n onBlur(e) {\n this.deactivate();\n }\n onClick(e) {\n this.deactivate();\n }\n activate() {\n this.active = true;\n this.clearHideTimeout();\n if (this.getOption('showDelay'))\n this.showTimeout = setTimeout(() => { this.show(); }, this.getOption('showDelay'));\n else\n this.show();\n if (this.getOption('life')) {\n let duration = this.getOption('showDelay') ? this.getOption('life') + this.getOption('showDelay') : this.getOption('life');\n this.hideTimeout = setTimeout(() => { this.hide(); }, duration);\n }\n }\n deactivate() {\n this.active = false;\n this.clearShowTimeout();\n if (this.getOption('hideDelay')) {\n this.clearHideTimeout(); //life timeout\n this.hideTimeout = setTimeout(() => { this.hide(); }, this.getOption('hideDelay'));\n }\n else {\n this.hide();\n }\n }\n create() {\n if (this.container) {\n this.clearHideTimeout();\n this.remove();\n }\n this.container = document.createElement('div');\n let tooltipArrow = document.createElement('div');\n tooltipArrow.className = 'p-tooltip-arrow';\n this.container.appendChild(tooltipArrow);\n this.tooltipText = document.createElement('div');\n this.tooltipText.className = 'p-tooltip-text';\n this.updateText();\n if (this.getOption('positionStyle')) {\n this.container.style.position = this.getOption('positionStyle');\n }\n this.container.appendChild(this.tooltipText);\n if (this.getOption('appendTo') === 'body')\n document.body.appendChild(this.container);\n else if (this.getOption('appendTo') === 'target')\n DomHandler.appendChild(this.container, this.el.nativeElement);\n else\n DomHandler.appendChild(this.container, this.getOption('appendTo'));\n this.container.style.display = 'inline-block';\n }\n show() {\n if (!this.getOption('tooltipLabel') || this.getOption('disabled')) {\n return;\n }\n this.create();\n this.align();\n DomHandler.fadeIn(this.container, 250);\n if (this.getOption('tooltipZIndex') === 'auto')\n ZIndexUtils.set('tooltip', this.container, this.config.zIndex.tooltip);\n else\n this.container.style.zIndex = this.getOption('tooltipZIndex');\n this.bindDocumentResizeListener();\n this.bindScrollListener();\n }\n hide() {\n if (this.getOption('tooltipZIndex') === 'auto') {\n ZIndexUtils.clear(this.container);\n }\n this.remove();\n }\n updateText() {\n if (this.getOption('escape')) {\n this.tooltipText.innerHTML = '';\n this.tooltipText.appendChild(document.createTextNode(this.getOption('tooltipLabel')));\n }\n else {\n this.tooltipText.innerHTML = this.getOption('tooltipLabel');\n }\n }\n align() {\n let position = this.getOption('tooltipPosition');\n switch (position) {\n case 'top':\n this.alignTop();\n if (this.isOutOfBounds()) {\n this.alignBottom();\n if (this.isOutOfBounds()) {\n this.alignRight();\n if (this.isOutOfBounds()) {\n this.alignLeft();\n }\n }\n }\n break;\n case 'bottom':\n this.alignBottom();\n if (this.isOutOfBounds()) {\n this.alignTop();\n if (this.isOutOfBounds()) {\n this.alignRight();\n if (this.isOutOfBounds()) {\n this.alignLeft();\n }\n }\n }\n break;\n case 'left':\n this.alignLeft();\n if (this.isOutOfBounds()) {\n this.alignRight();\n if (this.isOutOfBounds()) {\n this.alignTop();\n if (this.isOutOfBounds()) {\n this.alignBottom();\n }\n }\n }\n break;\n case 'right':\n this.alignRight();\n if (this.isOutOfBounds()) {\n this.alignLeft();\n if (this.isOutOfBounds()) {\n this.alignTop();\n if (this.isOutOfBounds()) {\n this.alignBottom();\n }\n }\n }\n break;\n }\n }\n getHostOffset() {\n if (this.getOption('appendTo') === 'body' || this.getOption('appendTo') === 'target') {\n let offset = this.el.nativeElement.getBoundingClientRect();\n let targetLeft = offset.left + DomHandler.getWindowScrollLeft();\n let targetTop = offset.top + DomHandler.getWindowScrollTop();\n return { left: targetLeft, top: targetTop };\n }\n else {\n return { left: 0, top: 0 };\n }\n }\n alignRight() {\n this.preAlign('right');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left + DomHandler.getOuterWidth(this.el.nativeElement);\n let top = hostOffset.top + (DomHandler.getOuterHeight(this.el.nativeElement) - DomHandler.getOuterHeight(this.container)) / 2;\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n alignLeft() {\n this.preAlign('left');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left - DomHandler.getOuterWidth(this.container);\n let top = hostOffset.top + (DomHandler.getOuterHeight(this.el.nativeElement) - DomHandler.getOuterHeight(this.container)) / 2;\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n alignTop() {\n this.preAlign('top');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left + (DomHandler.getOuterWidth(this.el.nativeElement) - DomHandler.getOuterWidth(this.container)) / 2;\n let top = hostOffset.top - DomHandler.getOuterHeight(this.container);\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n alignBottom() {\n this.preAlign('bottom');\n let hostOffset = this.getHostOffset();\n let left = hostOffset.left + (DomHandler.getOuterWidth(this.el.nativeElement) - DomHandler.getOuterWidth(this.container)) / 2;\n let top = hostOffset.top + DomHandler.getOuterHeight(this.el.nativeElement);\n this.container.style.left = left + this.getOption('positionLeft') + 'px';\n this.container.style.top = top + this.getOption('positionTop') + 'px';\n }\n setOption(option) {\n this._tooltipOptions = { ...this._tooltipOptions, ...option };\n }\n getOption(option) {\n return this._tooltipOptions[option];\n }\n preAlign(position) {\n this.container.style.left = -999 + 'px';\n this.container.style.top = -999 + 'px';\n let defaultClassName = 'p-tooltip p-component p-tooltip-' + position;\n this.container.className = this.getOption('tooltipStyleClass') ? defaultClassName + ' ' + this.getOption('tooltipStyleClass') : defaultClassName;\n }\n isOutOfBounds() {\n let offset = this.container.getBoundingClientRect();\n let targetTop = offset.top;\n let targetLeft = offset.left;\n let width = DomHandler.getOuterWidth(this.container);\n let height = DomHandler.getOuterHeight(this.container);\n let viewport = DomHandler.getViewport();\n return (targetLeft + width > viewport.width) || (targetLeft < 0) || (targetTop < 0) || (targetTop + height > viewport.height);\n }\n onWindowResize(e) {\n this.hide();\n }\n bindDocumentResizeListener() {\n this.zone.runOutsideAngular(() => {\n this.resizeListener = this.onWindowResize.bind(this);\n window.addEventListener('resize', this.resizeListener);\n });\n }\n unbindDocumentResizeListener() {\n if (this.resizeListener) {\n window.removeEventListener('resize', this.resizeListener);\n this.resizeListener = null;\n }\n }\n bindScrollListener() {\n if (!this.scrollHandler) {\n this.scrollHandler = new ConnectedOverlayScrollHandler(this.el.nativeElement, () => {\n if (this.container) {\n this.hide();\n }\n });\n }\n this.scrollHandler.bindScrollListener();\n }\n unbindScrollListener() {\n if (this.scrollHandler) {\n this.scrollHandler.unbindScrollListener();\n }\n }\n unbindEvents() {\n if (this.getOption('tooltipEvent') === 'hover') {\n this.el.nativeElement.removeEventListener('mouseenter', this.mouseEnterListener);\n this.el.nativeElement.removeEventListener('mouseleave', this.mouseLeaveListener);\n this.el.nativeElement.removeEventListener('click', this.clickListener);\n }\n else if (this.getOption('tooltipEvent') === 'focus') {\n this.el.nativeElement.removeEventListener('focus', this.focusListener);\n this.el.nativeElement.removeEventListener('blur', this.blurListener);\n }\n this.unbindDocumentResizeListener();\n }\n remove() {\n if (this.container && this.container.parentElement) {\n if (this.getOption('appendTo') === 'body')\n document.body.removeChild(this.container);\n else if (this.getOption('appendTo') === 'target')\n this.el.nativeElement.removeChild(this.container);\n else\n DomHandler.removeChild(this.container, this.getOption('appendTo'));\n }\n this.unbindDocumentResizeListener();\n this.unbindScrollListener();\n this.clearTimeouts();\n this.container = null;\n this.scrollHandler = null;\n }\n clearShowTimeout() {\n if (this.showTimeout) {\n clearTimeout(this.showTimeout);\n this.showTimeout = null;\n }\n }\n clearHideTimeout() {\n if (this.hideTimeout) {\n clearTimeout(this.hideTimeout);\n this.hideTimeout = null;\n }\n }\n clearTimeouts() {\n this.clearShowTimeout();\n this.clearHideTimeout();\n }\n ngOnDestroy() {\n this.unbindEvents();\n if (this.container) {\n ZIndexUtils.clear(this.container);\n }\n this.remove();\n if (this.scrollHandler) {\n this.scrollHandler.destroy();\n this.scrollHandler = null;\n }\n }\n}\nTooltip.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Tooltip, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i1.PrimeNGConfig }], target: i0.ɵɵFactoryTarget.Directive });\nTooltip.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.0\", type: Tooltip, selector: \"[pTooltip]\", inputs: { tooltipPosition: \"tooltipPosition\", tooltipEvent: \"tooltipEvent\", appendTo: \"appendTo\", positionStyle: \"positionStyle\", tooltipStyleClass: \"tooltipStyleClass\", tooltipZIndex: \"tooltipZIndex\", escape: \"escape\", showDelay: \"showDelay\", hideDelay: \"hideDelay\", life: \"life\", positionTop: \"positionTop\", positionLeft: \"positionLeft\", text: [\"pTooltip\", \"text\"], disabled: [\"tooltipDisabled\", \"disabled\"], tooltipOptions: \"tooltipOptions\" }, host: { classAttribute: \"p-element\" }, usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: Tooltip, decorators: [{\n type: Directive,\n args: [{\n selector: '[pTooltip]',\n host: {\n 'class': 'p-element'\n }\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i1.PrimeNGConfig }]; }, propDecorators: { tooltipPosition: [{\n type: Input\n }], tooltipEvent: [{\n type: Input\n }], appendTo: [{\n type: Input\n }], positionStyle: [{\n type: Input\n }], tooltipStyleClass: [{\n type: Input\n }], tooltipZIndex: [{\n type: Input\n }], escape: [{\n type: Input\n }], showDelay: [{\n type: Input\n }], hideDelay: [{\n type: Input\n }], life: [{\n type: Input\n }], positionTop: [{\n type: Input\n }], positionLeft: [{\n type: Input\n }], text: [{\n type: Input,\n args: ['pTooltip']\n }], disabled: [{\n type: Input,\n args: [\"tooltipDisabled\"]\n }], tooltipOptions: [{\n type: Input\n }] } });\nclass TooltipModule {\n}\nTooltipModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TooltipModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nTooltipModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TooltipModule, declarations: [Tooltip], imports: [CommonModule], exports: [Tooltip] });\nTooltipModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TooltipModule, imports: [[CommonModule]] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TooltipModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule],\n exports: [Tooltip],\n declarations: [Tooltip]\n }]\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Tooltip, TooltipModule };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/b00f53da3a80c8b6accb48596eeb556e.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/b00f53da3a80c8b6accb48596eeb556e.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/b00f53da3a80c8b6accb48596eeb556e.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { ElementRef, Directive, EventEmitter, Inject, Output, NgModule } from '@angular/core';\nimport { DOCUMENT } from '@angular/common';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Throws an exception when attempting to attach a null portal to a host.\n * @docs-private\n */\n\nfunction throwNullPortalError() {\n throw Error('Must provide a portal to attach');\n}\n/**\n * Throws an exception when attempting to attach a portal to a host that is already attached.\n * @docs-private\n */\n\n\nfunction throwPortalAlreadyAttachedError() {\n throw Error('Host already has a portal attached');\n}\n/**\n * Throws an exception when attempting to attach a portal to an already-disposed host.\n * @docs-private\n */\n\n\nfunction throwPortalOutletAlreadyDisposedError() {\n throw Error('This PortalOutlet has already been disposed');\n}\n/**\n * Throws an exception when attempting to attach an unknown portal type.\n * @docs-private\n */\n\n\nfunction throwUnknownPortalTypeError() {\n throw Error('Attempting to attach an unknown Portal type. BasePortalOutlet accepts either ' + 'a ComponentPortal or a TemplatePortal.');\n}\n/**\n * Throws an exception when attempting to attach a portal to a null host.\n * @docs-private\n */\n\n\nfunction throwNullPortalOutletError() {\n throw Error('Attempting to attach a portal to a null PortalOutlet');\n}\n/**\n * Throws an exception when attempting to detach a portal that is not attached.\n * @docs-private\n */\n\n\nfunction throwNoPortalAttachedError() {\n throw Error('Attempting to detach a portal that is not attached to a host');\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * A `Portal` is something that you want to render somewhere else.\n * It can be attach to / detached from a `PortalOutlet`.\n */\n\n\nclass Portal {\n /** Attach this portal to a host. */\n attach(host) {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (host == null) {\n throwNullPortalOutletError();\n }\n\n if (host.hasAttached()) {\n throwPortalAlreadyAttachedError();\n }\n }\n\n this._attachedHost = host;\n return host.attach(this);\n }\n /** Detach this portal from its host */\n\n\n detach() {\n let host = this._attachedHost;\n\n if (host != null) {\n this._attachedHost = null;\n host.detach();\n } else if (typeof ngDevMode === 'undefined' || ngDevMode) {\n throwNoPortalAttachedError();\n }\n }\n /** Whether this portal is attached to a host. */\n\n\n get isAttached() {\n return this._attachedHost != null;\n }\n /**\n * Sets the PortalOutlet reference without performing `attach()`. This is used directly by\n * the PortalOutlet when it is performing an `attach()` or `detach()`.\n */\n\n\n setAttachedHost(host) {\n this._attachedHost = host;\n }\n\n}\n/**\n * A `ComponentPortal` is a portal that instantiates some Component upon attachment.\n */\n\n\nclass ComponentPortal extends Portal {\n constructor(component, viewContainerRef, injector, componentFactoryResolver) {\n super();\n this.component = component;\n this.viewContainerRef = viewContainerRef;\n this.injector = injector;\n this.componentFactoryResolver = componentFactoryResolver;\n }\n\n}\n/**\n * A `TemplatePortal` is a portal that represents some embedded template (TemplateRef).\n */\n\n\nclass TemplatePortal extends Portal {\n constructor(template, viewContainerRef, context) {\n super();\n this.templateRef = template;\n this.viewContainerRef = viewContainerRef;\n this.context = context;\n }\n\n get origin() {\n return this.templateRef.elementRef;\n }\n /**\n * Attach the portal to the provided `PortalOutlet`.\n * When a context is provided it will override the `context` property of the `TemplatePortal`\n * instance.\n */\n\n\n attach(host, context = this.context) {\n this.context = context;\n return super.attach(host);\n }\n\n detach() {\n this.context = undefined;\n return super.detach();\n }\n\n}\n/**\n * A `DomPortal` is a portal whose DOM element will be taken from its current position\n * in the DOM and moved into a portal outlet, when it is attached. On detach, the content\n * will be restored to its original position.\n */\n\n\nclass DomPortal extends Portal {\n constructor(element) {\n super();\n this.element = element instanceof ElementRef ? element.nativeElement : element;\n }\n\n}\n/**\n * Partial implementation of PortalOutlet that handles attaching\n * ComponentPortal and TemplatePortal.\n */\n\n\nclass BasePortalOutlet {\n constructor() {\n /** Whether this host has already been permanently disposed. */\n this._isDisposed = false; // @breaking-change 10.0.0 `attachDomPortal` to become a required abstract method.\n\n this.attachDomPortal = null;\n }\n /** Whether this host has an attached portal. */\n\n\n hasAttached() {\n return !!this._attachedPortal;\n }\n /** Attaches a portal. */\n\n\n attach(portal) {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (!portal) {\n throwNullPortalError();\n }\n\n if (this.hasAttached()) {\n throwPortalAlreadyAttachedError();\n }\n\n if (this._isDisposed) {\n throwPortalOutletAlreadyDisposedError();\n }\n }\n\n if (portal instanceof ComponentPortal) {\n this._attachedPortal = portal;\n return this.attachComponentPortal(portal);\n } else if (portal instanceof TemplatePortal) {\n this._attachedPortal = portal;\n return this.attachTemplatePortal(portal); // @breaking-change 10.0.0 remove null check for `this.attachDomPortal`.\n } else if (this.attachDomPortal && portal instanceof DomPortal) {\n this._attachedPortal = portal;\n return this.attachDomPortal(portal);\n }\n\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n throwUnknownPortalTypeError();\n }\n }\n /** Detaches a previously attached portal. */\n\n\n detach() {\n if (this._attachedPortal) {\n this._attachedPortal.setAttachedHost(null);\n\n this._attachedPortal = null;\n }\n\n this._invokeDisposeFn();\n }\n /** Permanently dispose of this portal host. */\n\n\n dispose() {\n if (this.hasAttached()) {\n this.detach();\n }\n\n this._invokeDisposeFn();\n\n this._isDisposed = true;\n }\n /** @docs-private */\n\n\n setDisposeFn(fn) {\n this._disposeFn = fn;\n }\n\n _invokeDisposeFn() {\n if (this._disposeFn) {\n this._disposeFn();\n\n this._disposeFn = null;\n }\n }\n\n}\n/**\n * @deprecated Use `BasePortalOutlet` instead.\n * @breaking-change 9.0.0\n */\n\n\nclass BasePortalHost extends BasePortalOutlet {}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * A PortalOutlet for attaching portals to an arbitrary DOM element outside of the Angular\n * application context.\n */\n\n\nclass DomPortalOutlet extends BasePortalOutlet {\n constructor(\n /** Element into which the content is projected. */\n outletElement, _componentFactoryResolver, _appRef, _defaultInjector,\n /**\n * @deprecated `_document` Parameter to be made required.\n * @breaking-change 10.0.0\n */\n _document) {\n super();\n this.outletElement = outletElement;\n this._componentFactoryResolver = _componentFactoryResolver;\n this._appRef = _appRef;\n this._defaultInjector = _defaultInjector;\n /**\n * Attaches a DOM portal by transferring its content into the outlet.\n * @param portal Portal to be attached.\n * @deprecated To be turned into a method.\n * @breaking-change 10.0.0\n */\n\n this.attachDomPortal = portal => {\n // @breaking-change 10.0.0 Remove check and error once the\n // `_document` constructor parameter is required.\n if (!this._document && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Cannot attach DOM portal without _document constructor parameter');\n }\n\n const element = portal.element;\n\n if (!element.parentNode && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('DOM portal content must be attached to a parent node.');\n } // Anchor used to save the element's previous position so\n // that we can restore it when the portal is detached.\n\n\n const anchorNode = this._document.createComment('dom-portal');\n\n element.parentNode.insertBefore(anchorNode, element);\n this.outletElement.appendChild(element);\n this._attachedPortal = portal;\n super.setDisposeFn(() => {\n // We can't use `replaceWith` here because IE doesn't support it.\n if (anchorNode.parentNode) {\n anchorNode.parentNode.replaceChild(element, anchorNode);\n }\n });\n };\n\n this._document = _document;\n }\n /**\n * Attach the given ComponentPortal to DOM element using the ComponentFactoryResolver.\n * @param portal Portal to be attached\n * @returns Reference to the created component.\n */\n\n\n attachComponentPortal(portal) {\n const resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n const componentFactory = resolver.resolveComponentFactory(portal.component);\n let componentRef; // If the portal specifies a ViewContainerRef, we will use that as the attachment point\n // for the component (in terms of Angular's component tree, not rendering).\n // When the ViewContainerRef is missing, we use the factory to create the component directly\n // and then manually attach the view to the application.\n\n if (portal.viewContainerRef) {\n componentRef = portal.viewContainerRef.createComponent(componentFactory, portal.viewContainerRef.length, portal.injector || portal.viewContainerRef.injector);\n this.setDisposeFn(() => componentRef.destroy());\n } else {\n componentRef = componentFactory.create(portal.injector || this._defaultInjector);\n\n this._appRef.attachView(componentRef.hostView);\n\n this.setDisposeFn(() => {\n this._appRef.detachView(componentRef.hostView);\n\n componentRef.destroy();\n });\n } // At this point the component has been instantiated, so we move it to the location in the DOM\n // where we want it to be rendered.\n\n\n this.outletElement.appendChild(this._getComponentRootNode(componentRef));\n this._attachedPortal = portal;\n return componentRef;\n }\n /**\n * Attaches a template portal to the DOM as an embedded view.\n * @param portal Portal to be attached.\n * @returns Reference to the created embedded view.\n */\n\n\n attachTemplatePortal(portal) {\n let viewContainer = portal.viewContainerRef;\n let viewRef = viewContainer.createEmbeddedView(portal.templateRef, portal.context); // The method `createEmbeddedView` will add the view as a child of the viewContainer.\n // But for the DomPortalOutlet the view can be added everywhere in the DOM\n // (e.g Overlay Container) To move the view to the specified host element. We just\n // re-append the existing root nodes.\n\n viewRef.rootNodes.forEach(rootNode => this.outletElement.appendChild(rootNode)); // Note that we want to detect changes after the nodes have been moved so that\n // any directives inside the portal that are looking at the DOM inside a lifecycle\n // hook won't be invoked too early.\n\n viewRef.detectChanges();\n this.setDisposeFn(() => {\n let index = viewContainer.indexOf(viewRef);\n\n if (index !== -1) {\n viewContainer.remove(index);\n }\n });\n this._attachedPortal = portal; // TODO(jelbourn): Return locals from view.\n\n return viewRef;\n }\n /**\n * Clears out a portal from the DOM.\n */\n\n\n dispose() {\n super.dispose();\n this.outletElement.remove();\n }\n /** Gets the root HTMLElement for an instantiated component. */\n\n\n _getComponentRootNode(componentRef) {\n return componentRef.hostView.rootNodes[0];\n }\n\n}\n/**\n * @deprecated Use `DomPortalOutlet` instead.\n * @breaking-change 9.0.0\n */\n\n\nclass DomPortalHost extends DomPortalOutlet {}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Directive version of a `TemplatePortal`. Because the directive *is* a TemplatePortal,\n * the directive instance itself can be attached to a host, enabling declarative use of portals.\n */\n\n\nclass CdkPortal extends TemplatePortal {\n constructor(templateRef, viewContainerRef) {\n super(templateRef, viewContainerRef);\n }\n\n}\n\nCdkPortal.ɵfac = function CdkPortal_Factory(t) {\n return new (t || CdkPortal)(i0.ɵɵdirectiveInject(i0.TemplateRef), i0.ɵɵdirectiveInject(i0.ViewContainerRef));\n};\n\nCdkPortal.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkPortal,\n selectors: [[\"\", \"cdkPortal\", \"\"]],\n exportAs: [\"cdkPortal\"],\n features: [i0.ɵɵInheritDefinitionFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkPortal, [{\n type: Directive,\n args: [{\n selector: '[cdkPortal]',\n exportAs: 'cdkPortal'\n }]\n }], function () {\n return [{\n type: i0.TemplateRef\n }, {\n type: i0.ViewContainerRef\n }];\n }, null);\n})();\n/**\n * @deprecated Use `CdkPortal` instead.\n * @breaking-change 9.0.0\n */\n\n\nclass TemplatePortalDirective extends CdkPortal {}\n\nTemplatePortalDirective.ɵfac = /* @__PURE__ */function () {\n let ɵTemplatePortalDirective_BaseFactory;\n return function TemplatePortalDirective_Factory(t) {\n return (ɵTemplatePortalDirective_BaseFactory || (ɵTemplatePortalDirective_BaseFactory = i0.ɵɵgetInheritedFactory(TemplatePortalDirective)))(t || TemplatePortalDirective);\n };\n}();\n\nTemplatePortalDirective.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: TemplatePortalDirective,\n selectors: [[\"\", \"cdk-portal\", \"\"], [\"\", \"portal\", \"\"]],\n exportAs: [\"cdkPortal\"],\n features: [i0.ɵɵProvidersFeature([{\n provide: CdkPortal,\n useExisting: TemplatePortalDirective\n }]), i0.ɵɵInheritDefinitionFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(TemplatePortalDirective, [{\n type: Directive,\n args: [{\n selector: '[cdk-portal], [portal]',\n exportAs: 'cdkPortal',\n providers: [{\n provide: CdkPortal,\n useExisting: TemplatePortalDirective\n }]\n }]\n }], null, null);\n})();\n/**\n * Directive version of a PortalOutlet. Because the directive *is* a PortalOutlet, portals can be\n * directly attached to it, enabling declarative use.\n *\n * Usage:\n * ``\n */\n\n\nclass CdkPortalOutlet extends BasePortalOutlet {\n constructor(_componentFactoryResolver, _viewContainerRef,\n /**\n * @deprecated `_document` parameter to be made required.\n * @breaking-change 9.0.0\n */\n _document) {\n super();\n this._componentFactoryResolver = _componentFactoryResolver;\n this._viewContainerRef = _viewContainerRef;\n /** Whether the portal component is initialized. */\n\n this._isInitialized = false;\n /** Emits when a portal is attached to the outlet. */\n\n this.attached = new EventEmitter();\n /**\n * Attaches the given DomPortal to this PortalHost by moving all of the portal content into it.\n * @param portal Portal to be attached.\n * @deprecated To be turned into a method.\n * @breaking-change 10.0.0\n */\n\n this.attachDomPortal = portal => {\n // @breaking-change 9.0.0 Remove check and error once the\n // `_document` constructor parameter is required.\n if (!this._document && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Cannot attach DOM portal without _document constructor parameter');\n }\n\n const element = portal.element;\n\n if (!element.parentNode && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('DOM portal content must be attached to a parent node.');\n } // Anchor used to save the element's previous position so\n // that we can restore it when the portal is detached.\n\n\n const anchorNode = this._document.createComment('dom-portal');\n\n portal.setAttachedHost(this);\n element.parentNode.insertBefore(anchorNode, element);\n\n this._getRootNode().appendChild(element);\n\n this._attachedPortal = portal;\n super.setDisposeFn(() => {\n if (anchorNode.parentNode) {\n anchorNode.parentNode.replaceChild(element, anchorNode);\n }\n });\n };\n\n this._document = _document;\n }\n /** Portal associated with the Portal outlet. */\n\n\n get portal() {\n return this._attachedPortal;\n }\n\n set portal(portal) {\n // Ignore the cases where the `portal` is set to a falsy value before the lifecycle hooks have\n // run. 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`\n // and attach a portal programmatically in the parent component. When Angular does the first CD\n // round, it will fire the setter with empty string, causing the user's content to be cleared.\n if (this.hasAttached() && !portal && !this._isInitialized) {\n return;\n }\n\n if (this.hasAttached()) {\n super.detach();\n }\n\n if (portal) {\n super.attach(portal);\n }\n\n this._attachedPortal = portal;\n }\n /** Component or view reference that is attached to the portal. */\n\n\n get attachedRef() {\n return this._attachedRef;\n }\n\n ngOnInit() {\n this._isInitialized = true;\n }\n\n ngOnDestroy() {\n super.dispose();\n this._attachedPortal = null;\n this._attachedRef = null;\n }\n /**\n * Attach the given ComponentPortal to this PortalOutlet using the ComponentFactoryResolver.\n *\n * @param portal Portal to be attached to the portal outlet.\n * @returns Reference to the created component.\n */\n\n\n attachComponentPortal(portal) {\n portal.setAttachedHost(this); // If the portal specifies an origin, use that as the logical location of the component\n // in the application tree. Otherwise use the location of this PortalOutlet.\n\n const viewContainerRef = portal.viewContainerRef != null ? portal.viewContainerRef : this._viewContainerRef;\n const resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n const componentFactory = resolver.resolveComponentFactory(portal.component);\n const ref = viewContainerRef.createComponent(componentFactory, viewContainerRef.length, portal.injector || viewContainerRef.injector); // If we're using a view container that's different from the injected one (e.g. when the portal\n // specifies its own) we need to move the component into the outlet, otherwise it'll be rendered\n // inside of the alternate view container.\n\n if (viewContainerRef !== this._viewContainerRef) {\n this._getRootNode().appendChild(ref.hostView.rootNodes[0]);\n }\n\n super.setDisposeFn(() => ref.destroy());\n this._attachedPortal = portal;\n this._attachedRef = ref;\n this.attached.emit(ref);\n return ref;\n }\n /**\n * Attach the given TemplatePortal to this PortalHost as an embedded View.\n * @param portal Portal to be attached.\n * @returns Reference to the created embedded view.\n */\n\n\n attachTemplatePortal(portal) {\n portal.setAttachedHost(this);\n\n const viewRef = this._viewContainerRef.createEmbeddedView(portal.templateRef, portal.context);\n\n super.setDisposeFn(() => this._viewContainerRef.clear());\n this._attachedPortal = portal;\n this._attachedRef = viewRef;\n this.attached.emit(viewRef);\n return viewRef;\n }\n /** Gets the root node of the portal outlet. */\n\n\n _getRootNode() {\n const nativeElement = this._viewContainerRef.element.nativeElement; // The directive could be set on a template which will result in a comment\n // node being the root. 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Do not edit.\n */\n\n\nexport { BasePortalHost, BasePortalOutlet, CdkPortal, CdkPortalOutlet, ComponentPortal, DomPortal, DomPortalHost, DomPortalOutlet, Portal, PortalHostDirective, PortalInjector, PortalModule, TemplatePortal, TemplatePortalDirective 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* as i0 from '@angular/core';\nimport { ElementRef, Directive, EventEmitter, Inject, Output, NgModule } from '@angular/core';\nimport { DOCUMENT } from '@angular/common';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Throws an exception when attempting to attach a null portal to a host.\n * @docs-private\n */\nfunction throwNullPortalError() {\n throw Error('Must provide a portal to attach');\n}\n/**\n * Throws an exception when attempting to attach a portal to a host that is already attached.\n * @docs-private\n */\nfunction throwPortalAlreadyAttachedError() {\n throw Error('Host already has a portal attached');\n}\n/**\n * Throws an exception when attempting to attach a portal to an already-disposed host.\n * @docs-private\n */\nfunction throwPortalOutletAlreadyDisposedError() {\n throw Error('This PortalOutlet has already been disposed');\n}\n/**\n * Throws an exception when attempting to attach an unknown portal type.\n * @docs-private\n */\nfunction throwUnknownPortalTypeError() {\n throw Error('Attempting to attach an unknown Portal type. BasePortalOutlet accepts either ' +\n 'a ComponentPortal or a TemplatePortal.');\n}\n/**\n * Throws an exception when attempting to attach a portal to a null host.\n * @docs-private\n */\nfunction throwNullPortalOutletError() {\n throw Error('Attempting to attach a portal to a null PortalOutlet');\n}\n/**\n * Throws an exception when attempting to detach a portal that is not attached.\n * @docs-private\n */\nfunction throwNoPortalAttachedError() {\n throw Error('Attempting to detach a portal that is not attached to a host');\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A `Portal` is something that you want to render somewhere else.\n * It can be attach to / detached from a `PortalOutlet`.\n */\nclass Portal {\n /** Attach this portal to a host. */\n attach(host) {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (host == null) {\n throwNullPortalOutletError();\n }\n if (host.hasAttached()) {\n throwPortalAlreadyAttachedError();\n }\n }\n this._attachedHost = host;\n return host.attach(this);\n }\n /** Detach this portal from its host */\n detach() {\n let host = this._attachedHost;\n if (host != null) {\n this._attachedHost = null;\n host.detach();\n }\n else if (typeof ngDevMode === 'undefined' || ngDevMode) {\n throwNoPortalAttachedError();\n }\n }\n /** Whether this portal is attached to a host. */\n get isAttached() {\n return this._attachedHost != null;\n }\n /**\n * Sets the PortalOutlet reference without performing `attach()`. This is used directly by\n * the PortalOutlet when it is performing an `attach()` or `detach()`.\n */\n setAttachedHost(host) {\n this._attachedHost = host;\n }\n}\n/**\n * A `ComponentPortal` is a portal that instantiates some Component upon attachment.\n */\nclass ComponentPortal extends Portal {\n constructor(component, viewContainerRef, injector, componentFactoryResolver) {\n super();\n this.component = component;\n this.viewContainerRef = viewContainerRef;\n this.injector = injector;\n this.componentFactoryResolver = componentFactoryResolver;\n }\n}\n/**\n * A `TemplatePortal` is a portal that represents some embedded template (TemplateRef).\n */\nclass TemplatePortal extends Portal {\n constructor(template, viewContainerRef, context) {\n super();\n this.templateRef = template;\n this.viewContainerRef = viewContainerRef;\n this.context = context;\n }\n get origin() {\n return this.templateRef.elementRef;\n }\n /**\n * Attach the portal to the provided `PortalOutlet`.\n * When a context is provided it will override the `context` property of the `TemplatePortal`\n * instance.\n */\n attach(host, context = this.context) {\n this.context = context;\n return super.attach(host);\n }\n detach() {\n this.context = undefined;\n return super.detach();\n }\n}\n/**\n * A `DomPortal` is a portal whose DOM element will be taken from its current position\n * in the DOM and moved into a portal outlet, when it is attached. On detach, the content\n * will be restored to its original position.\n */\nclass DomPortal extends Portal {\n constructor(element) {\n super();\n this.element = element instanceof ElementRef ? element.nativeElement : element;\n }\n}\n/**\n * Partial implementation of PortalOutlet that handles attaching\n * ComponentPortal and TemplatePortal.\n */\nclass BasePortalOutlet {\n constructor() {\n /** Whether this host has already been permanently disposed. */\n this._isDisposed = false;\n // @breaking-change 10.0.0 `attachDomPortal` to become a required abstract method.\n this.attachDomPortal = null;\n }\n /** Whether this host has an attached portal. */\n hasAttached() {\n return !!this._attachedPortal;\n }\n /** Attaches a portal. */\n attach(portal) {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (!portal) {\n throwNullPortalError();\n }\n if (this.hasAttached()) {\n throwPortalAlreadyAttachedError();\n }\n if (this._isDisposed) {\n throwPortalOutletAlreadyDisposedError();\n }\n }\n if (portal instanceof ComponentPortal) {\n this._attachedPortal = portal;\n return this.attachComponentPortal(portal);\n }\n else if (portal instanceof TemplatePortal) {\n this._attachedPortal = portal;\n return this.attachTemplatePortal(portal);\n // @breaking-change 10.0.0 remove null check for `this.attachDomPortal`.\n }\n else if (this.attachDomPortal && portal instanceof DomPortal) {\n this._attachedPortal = portal;\n return this.attachDomPortal(portal);\n }\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n throwUnknownPortalTypeError();\n }\n }\n /** Detaches a previously attached portal. */\n detach() {\n if (this._attachedPortal) {\n this._attachedPortal.setAttachedHost(null);\n this._attachedPortal = null;\n }\n this._invokeDisposeFn();\n }\n /** Permanently dispose of this portal host. */\n dispose() {\n if (this.hasAttached()) {\n this.detach();\n }\n this._invokeDisposeFn();\n this._isDisposed = true;\n }\n /** @docs-private */\n setDisposeFn(fn) {\n this._disposeFn = fn;\n }\n _invokeDisposeFn() {\n if (this._disposeFn) {\n this._disposeFn();\n this._disposeFn = null;\n }\n }\n}\n/**\n * @deprecated Use `BasePortalOutlet` instead.\n * @breaking-change 9.0.0\n */\nclass BasePortalHost extends BasePortalOutlet {\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A PortalOutlet for attaching portals to an arbitrary DOM element outside of the Angular\n * application context.\n */\nclass DomPortalOutlet extends BasePortalOutlet {\n constructor(\n /** Element into which the content is projected. */\n outletElement, _componentFactoryResolver, _appRef, _defaultInjector, \n /**\n * @deprecated `_document` Parameter to be made required.\n * @breaking-change 10.0.0\n */\n _document) {\n super();\n this.outletElement = outletElement;\n this._componentFactoryResolver = _componentFactoryResolver;\n this._appRef = _appRef;\n this._defaultInjector = _defaultInjector;\n /**\n * Attaches a DOM portal by transferring its content into the outlet.\n * @param portal Portal to be attached.\n * @deprecated To be turned into a method.\n * @breaking-change 10.0.0\n */\n this.attachDomPortal = (portal) => {\n // @breaking-change 10.0.0 Remove check and error once the\n // `_document` constructor parameter is required.\n if (!this._document && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Cannot attach DOM portal without _document constructor parameter');\n }\n const element = portal.element;\n if (!element.parentNode && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('DOM portal content must be attached to a parent node.');\n }\n // Anchor used to save the element's previous position so\n // that we can restore it when the portal is detached.\n const anchorNode = this._document.createComment('dom-portal');\n element.parentNode.insertBefore(anchorNode, element);\n this.outletElement.appendChild(element);\n this._attachedPortal = portal;\n super.setDisposeFn(() => {\n // We can't use `replaceWith` here because IE doesn't support it.\n if (anchorNode.parentNode) {\n anchorNode.parentNode.replaceChild(element, anchorNode);\n }\n });\n };\n this._document = _document;\n }\n /**\n * Attach the given ComponentPortal to DOM element using the ComponentFactoryResolver.\n * @param portal Portal to be attached\n * @returns Reference to the created component.\n */\n attachComponentPortal(portal) {\n const resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n const componentFactory = resolver.resolveComponentFactory(portal.component);\n let componentRef;\n // If the portal specifies a ViewContainerRef, we will use that as the attachment point\n // for the component (in terms of Angular's component tree, not rendering).\n // When the ViewContainerRef is missing, we use the factory to create the component directly\n // and then manually attach the view to the application.\n if (portal.viewContainerRef) {\n componentRef = portal.viewContainerRef.createComponent(componentFactory, portal.viewContainerRef.length, portal.injector || portal.viewContainerRef.injector);\n this.setDisposeFn(() => componentRef.destroy());\n }\n else {\n componentRef = componentFactory.create(portal.injector || this._defaultInjector);\n this._appRef.attachView(componentRef.hostView);\n this.setDisposeFn(() => {\n this._appRef.detachView(componentRef.hostView);\n componentRef.destroy();\n });\n }\n // At this point the component has been instantiated, so we move it to the location in the DOM\n // where we want it to be rendered.\n this.outletElement.appendChild(this._getComponentRootNode(componentRef));\n this._attachedPortal = portal;\n return componentRef;\n }\n /**\n * Attaches a template portal to the DOM as an embedded view.\n * @param portal Portal to be attached.\n * @returns Reference to the created embedded view.\n */\n attachTemplatePortal(portal) {\n let viewContainer = portal.viewContainerRef;\n let viewRef = viewContainer.createEmbeddedView(portal.templateRef, portal.context);\n // The method `createEmbeddedView` will add the view as a child of the viewContainer.\n // But for the DomPortalOutlet the view can be added everywhere in the DOM\n // (e.g Overlay Container) To move the view to the specified host element. We just\n // re-append the existing root nodes.\n viewRef.rootNodes.forEach(rootNode => this.outletElement.appendChild(rootNode));\n // Note that we want to detect changes after the nodes have been moved so that\n // any directives inside the portal that are looking at the DOM inside a lifecycle\n // hook won't be invoked too early.\n viewRef.detectChanges();\n this.setDisposeFn(() => {\n let index = viewContainer.indexOf(viewRef);\n if (index !== -1) {\n viewContainer.remove(index);\n }\n });\n this._attachedPortal = portal;\n // TODO(jelbourn): Return locals from view.\n return viewRef;\n }\n /**\n * Clears out a portal from the DOM.\n */\n dispose() {\n super.dispose();\n this.outletElement.remove();\n }\n /** Gets the root HTMLElement for an instantiated component. */\n _getComponentRootNode(componentRef) {\n return componentRef.hostView.rootNodes[0];\n }\n}\n/**\n * @deprecated Use `DomPortalOutlet` instead.\n * @breaking-change 9.0.0\n */\nclass DomPortalHost extends DomPortalOutlet {\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Directive version of a `TemplatePortal`. Because the directive *is* a TemplatePortal,\n * the directive instance itself can be attached to a host, enabling declarative use of portals.\n */\nclass CdkPortal extends TemplatePortal {\n constructor(templateRef, viewContainerRef) {\n super(templateRef, viewContainerRef);\n }\n}\nCdkPortal.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkPortal, deps: [{ token: i0.TemplateRef }, { token: i0.ViewContainerRef }], target: i0.ɵɵFactoryTarget.Directive });\nCdkPortal.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkPortal, selector: \"[cdkPortal]\", exportAs: [\"cdkPortal\"], usesInheritance: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkPortal, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkPortal]',\n exportAs: 'cdkPortal',\n }]\n }], ctorParameters: function () { return [{ type: i0.TemplateRef }, { type: i0.ViewContainerRef }]; } });\n/**\n * @deprecated Use `CdkPortal` instead.\n * @breaking-change 9.0.0\n */\nclass TemplatePortalDirective extends CdkPortal {\n}\nTemplatePortalDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: TemplatePortalDirective, deps: null, target: i0.ɵɵFactoryTarget.Directive });\nTemplatePortalDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: TemplatePortalDirective, selector: \"[cdk-portal], [portal]\", providers: [\n {\n provide: CdkPortal,\n useExisting: TemplatePortalDirective,\n },\n ], exportAs: [\"cdkPortal\"], usesInheritance: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: TemplatePortalDirective, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdk-portal], [portal]',\n exportAs: 'cdkPortal',\n providers: [\n {\n provide: CdkPortal,\n useExisting: TemplatePortalDirective,\n },\n ],\n }]\n }] });\n/**\n * Directive version of a PortalOutlet. Because the directive *is* a PortalOutlet, portals can be\n * directly attached to it, enabling declarative use.\n *\n * Usage:\n * ``\n */\nclass CdkPortalOutlet extends BasePortalOutlet {\n constructor(_componentFactoryResolver, _viewContainerRef, \n /**\n * @deprecated `_document` parameter to be made required.\n * @breaking-change 9.0.0\n */\n _document) {\n super();\n this._componentFactoryResolver = _componentFactoryResolver;\n this._viewContainerRef = _viewContainerRef;\n /** Whether the portal component is initialized. */\n this._isInitialized = false;\n /** Emits when a portal is attached to the outlet. */\n this.attached = new EventEmitter();\n /**\n * Attaches the given DomPortal to this PortalHost by moving all of the portal content into it.\n * @param portal Portal to be attached.\n * @deprecated To be turned into a method.\n * @breaking-change 10.0.0\n */\n this.attachDomPortal = (portal) => {\n // @breaking-change 9.0.0 Remove check and error once the\n // `_document` constructor parameter is required.\n if (!this._document && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Cannot attach DOM portal without _document constructor parameter');\n }\n const element = portal.element;\n if (!element.parentNode && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('DOM portal content must be attached to a parent node.');\n }\n // Anchor used to save the element's previous position so\n // that we can restore it when the portal is detached.\n const anchorNode = this._document.createComment('dom-portal');\n portal.setAttachedHost(this);\n element.parentNode.insertBefore(anchorNode, element);\n this._getRootNode().appendChild(element);\n this._attachedPortal = portal;\n super.setDisposeFn(() => {\n if (anchorNode.parentNode) {\n anchorNode.parentNode.replaceChild(element, anchorNode);\n }\n });\n };\n this._document = _document;\n }\n /** Portal associated with the Portal outlet. */\n get portal() {\n return this._attachedPortal;\n }\n set portal(portal) {\n // Ignore the cases where the `portal` is set to a falsy value before the lifecycle hooks have\n // run. This handles the cases where the user might do something like `
`\n // and attach a portal programmatically in the parent component. When Angular does the first CD\n // round, it will fire the setter with empty string, causing the user's content to be cleared.\n if (this.hasAttached() && !portal && !this._isInitialized) {\n return;\n }\n if (this.hasAttached()) {\n super.detach();\n }\n if (portal) {\n super.attach(portal);\n }\n this._attachedPortal = portal;\n }\n /** Component or view reference that is attached to the portal. */\n get attachedRef() {\n return this._attachedRef;\n }\n ngOnInit() {\n this._isInitialized = true;\n }\n ngOnDestroy() {\n super.dispose();\n this._attachedPortal = null;\n this._attachedRef = null;\n }\n /**\n * Attach the given ComponentPortal to this PortalOutlet using the ComponentFactoryResolver.\n *\n * @param portal Portal to be attached to the portal outlet.\n * @returns Reference to the created component.\n */\n attachComponentPortal(portal) {\n portal.setAttachedHost(this);\n // If the portal specifies an origin, use that as the logical location of the component\n // in the application tree. Otherwise use the location of this PortalOutlet.\n const viewContainerRef = portal.viewContainerRef != null ? portal.viewContainerRef : this._viewContainerRef;\n const resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n const componentFactory = resolver.resolveComponentFactory(portal.component);\n const ref = viewContainerRef.createComponent(componentFactory, viewContainerRef.length, portal.injector || viewContainerRef.injector);\n // If we're using a view container that's different from the injected one (e.g. when the portal\n // specifies its own) we need to move the component into the outlet, otherwise it'll be rendered\n // inside of the alternate view container.\n if (viewContainerRef !== this._viewContainerRef) {\n this._getRootNode().appendChild(ref.hostView.rootNodes[0]);\n }\n super.setDisposeFn(() => ref.destroy());\n this._attachedPortal = portal;\n this._attachedRef = ref;\n this.attached.emit(ref);\n return ref;\n }\n /**\n * Attach the given TemplatePortal to this PortalHost as an embedded View.\n * @param portal Portal to be attached.\n * @returns Reference to the created embedded view.\n */\n attachTemplatePortal(portal) {\n portal.setAttachedHost(this);\n const viewRef = this._viewContainerRef.createEmbeddedView(portal.templateRef, portal.context);\n super.setDisposeFn(() => this._viewContainerRef.clear());\n this._attachedPortal = portal;\n this._attachedRef = viewRef;\n this.attached.emit(viewRef);\n return viewRef;\n }\n /** Gets the root node of the portal outlet. */\n _getRootNode() {\n const nativeElement = this._viewContainerRef.element.nativeElement;\n // The directive could be set on a template which will result in a comment\n // node being the root. Use the comment's parent node if that is the case.\n return (nativeElement.nodeType === nativeElement.ELEMENT_NODE\n ? nativeElement\n : nativeElement.parentNode);\n }\n}\nCdkPortalOutlet.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkPortalOutlet, deps: [{ token: i0.ComponentFactoryResolver }, { token: i0.ViewContainerRef }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Directive });\nCdkPortalOutlet.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkPortalOutlet, selector: \"[cdkPortalOutlet]\", inputs: { portal: [\"cdkPortalOutlet\", \"portal\"] }, outputs: { attached: \"attached\" }, exportAs: [\"cdkPortalOutlet\"], usesInheritance: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkPortalOutlet, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkPortalOutlet]',\n exportAs: 'cdkPortalOutlet',\n inputs: ['portal: cdkPortalOutlet'],\n }]\n }], ctorParameters: function () { return [{ type: i0.ComponentFactoryResolver }, { type: i0.ViewContainerRef }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; }, propDecorators: { attached: [{\n type: Output\n }] } });\n/**\n * @deprecated Use `CdkPortalOutlet` instead.\n * @breaking-change 9.0.0\n */\nclass PortalHostDirective extends CdkPortalOutlet {\n}\nPortalHostDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PortalHostDirective, deps: null, target: i0.ɵɵFactoryTarget.Directive });\nPortalHostDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: PortalHostDirective, selector: \"[cdkPortalHost], [portalHost]\", inputs: { portal: [\"cdkPortalHost\", \"portal\"] }, providers: [\n {\n provide: CdkPortalOutlet,\n useExisting: PortalHostDirective,\n },\n ], exportAs: [\"cdkPortalHost\"], usesInheritance: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PortalHostDirective, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkPortalHost], [portalHost]',\n exportAs: 'cdkPortalHost',\n inputs: ['portal: cdkPortalHost'],\n providers: [\n {\n provide: CdkPortalOutlet,\n useExisting: PortalHostDirective,\n },\n ],\n }]\n }] });\nclass PortalModule {\n}\nPortalModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PortalModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nPortalModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PortalModule, declarations: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective], exports: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective] });\nPortalModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PortalModule });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PortalModule, decorators: [{\n type: NgModule,\n args: [{\n exports: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective],\n declarations: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Custom injector to be used when providing custom\n * injection tokens to components inside a portal.\n * @docs-private\n * @deprecated Use `Injector.create` instead.\n * @breaking-change 11.0.0\n */\nclass PortalInjector {\n constructor(_parentInjector, _customTokens) {\n this._parentInjector = _parentInjector;\n this._customTokens = _customTokens;\n }\n get(token, notFoundValue) {\n const value = this._customTokens.get(token);\n if (typeof value !== 'undefined') {\n return value;\n }\n return this._parentInjector.get(token, notFoundValue);\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BasePortalHost, BasePortalOutlet, CdkPortal, CdkPortalOutlet, ComponentPortal, DomPortal, DomPortalHost, DomPortalOutlet, Portal, PortalHostDirective, PortalInjector, PortalModule, TemplatePortal, TemplatePortalDirective };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/b4e498c40d763a82231cd83ef0b0da6f.json
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--- trip-planner-front/node_modules/.cache/babel-webpack/b4e498c40d763a82231cd83ef0b0da6f.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/b4e498c40d763a82231cd83ef0b0da6f.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i1 from '@angular/cdk/platform';\nimport { normalizePassiveListenerOptions, PlatformModule } from '@angular/cdk/platform';\nimport * as i0 from '@angular/core';\nimport { Injectable, EventEmitter, Directive, Output, Optional, Inject, Input, NgModule } from '@angular/core';\nimport { coerceElement, coerceNumberProperty, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { EMPTY, Subject, fromEvent } from 'rxjs';\nimport { auditTime, takeUntil } from 'rxjs/operators';\nimport { DOCUMENT } from '@angular/common';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Options to pass to the animationstart listener. */\n\nconst listenerOptions = normalizePassiveListenerOptions({\n passive: true\n});\n/**\n * An injectable service that can be used to monitor the autofill state of an input.\n * Based on the following blog post:\n * https://medium.com/@brunn/detecting-autofilled-fields-in-javascript-aed598d25da7\n */\n\nclass AutofillMonitor {\n constructor(_platform, _ngZone) {\n this._platform = _platform;\n this._ngZone = _ngZone;\n this._monitoredElements = new Map();\n }\n\n monitor(elementOrRef) {\n if (!this._platform.isBrowser) {\n return EMPTY;\n }\n\n const element = coerceElement(elementOrRef);\n\n const info = this._monitoredElements.get(element);\n\n if (info) {\n return info.subject;\n }\n\n const result = new Subject();\n const cssClass = 'cdk-text-field-autofilled';\n\n const listener = event => {\n // Animation events fire on initial element render, we check for the presence of the autofill\n // CSS class to make sure this is a real change in state, not just the initial render before\n // we fire off events.\n if (event.animationName === 'cdk-text-field-autofill-start' && !element.classList.contains(cssClass)) {\n element.classList.add(cssClass);\n\n this._ngZone.run(() => result.next({\n target: event.target,\n isAutofilled: true\n }));\n } else if (event.animationName === 'cdk-text-field-autofill-end' && element.classList.contains(cssClass)) {\n element.classList.remove(cssClass);\n\n this._ngZone.run(() => result.next({\n target: event.target,\n isAutofilled: false\n }));\n }\n };\n\n this._ngZone.runOutsideAngular(() => {\n element.addEventListener('animationstart', listener, listenerOptions);\n element.classList.add('cdk-text-field-autofill-monitored');\n });\n\n this._monitoredElements.set(element, {\n subject: result,\n unlisten: () => {\n element.removeEventListener('animationstart', listener, listenerOptions);\n }\n });\n\n return result;\n }\n\n stopMonitoring(elementOrRef) {\n const element = coerceElement(elementOrRef);\n\n const info = this._monitoredElements.get(element);\n\n if (info) {\n info.unlisten();\n info.subject.complete();\n element.classList.remove('cdk-text-field-autofill-monitored');\n element.classList.remove('cdk-text-field-autofilled');\n\n this._monitoredElements.delete(element);\n }\n }\n\n ngOnDestroy() {\n this._monitoredElements.forEach((_info, element) => this.stopMonitoring(element));\n }\n\n}\n\nAutofillMonitor.ɵfac = function AutofillMonitor_Factory(t) {\n return new (t || AutofillMonitor)(i0.ɵɵinject(i1.Platform), i0.ɵɵinject(i0.NgZone));\n};\n\nAutofillMonitor.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: AutofillMonitor,\n factory: AutofillMonitor.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(AutofillMonitor, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: i1.Platform\n }, {\n type: i0.NgZone\n }];\n }, null);\n})();\n/** A directive that can be used to monitor the autofill state of an input. */\n\n\nclass CdkAutofill {\n constructor(_elementRef, _autofillMonitor) {\n this._elementRef = _elementRef;\n this._autofillMonitor = _autofillMonitor;\n /** Emits when the autofill state of the element changes. */\n\n this.cdkAutofill = new EventEmitter();\n }\n\n ngOnInit() {\n this._autofillMonitor.monitor(this._elementRef).subscribe(event => this.cdkAutofill.emit(event));\n }\n\n ngOnDestroy() {\n this._autofillMonitor.stopMonitoring(this._elementRef);\n }\n\n}\n\nCdkAutofill.ɵfac = function CdkAutofill_Factory(t) {\n return new (t || CdkAutofill)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(AutofillMonitor));\n};\n\nCdkAutofill.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkAutofill,\n selectors: [[\"\", \"cdkAutofill\", \"\"]],\n outputs: {\n cdkAutofill: \"cdkAutofill\"\n }\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkAutofill, [{\n type: Directive,\n args: [{\n selector: '[cdkAutofill]'\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: AutofillMonitor\n }];\n }, {\n cdkAutofill: [{\n type: Output\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Directive to automatically resize a textarea to fit its content. */\n\n\nclass CdkTextareaAutosize {\n constructor(_elementRef, _platform, _ngZone,\n /** @breaking-change 11.0.0 make document required */\n document) {\n this._elementRef = _elementRef;\n this._platform = _platform;\n this._ngZone = _ngZone;\n this._destroyed = new Subject();\n this._enabled = true;\n /**\n * Value of minRows as of last resize. If the minRows has decreased, the\n * height of the textarea needs to be recomputed to reflect the new minimum. The maxHeight\n * does not have the same problem because it does not affect the textarea's scrollHeight.\n */\n\n this._previousMinRows = -1;\n this._isViewInited = false;\n /** Handles `focus` and `blur` events. */\n\n this._handleFocusEvent = event => {\n this._hasFocus = event.type === 'focus';\n };\n\n this._document = document;\n this._textareaElement = this._elementRef.nativeElement;\n }\n /** Minimum amount of rows in the textarea. */\n\n\n get minRows() {\n return this._minRows;\n }\n\n set minRows(value) {\n this._minRows = coerceNumberProperty(value);\n\n this._setMinHeight();\n }\n /** Maximum amount of rows in the textarea. */\n\n\n get maxRows() {\n return this._maxRows;\n }\n\n set maxRows(value) {\n this._maxRows = coerceNumberProperty(value);\n\n this._setMaxHeight();\n }\n /** Whether autosizing is enabled or not */\n\n\n get enabled() {\n return this._enabled;\n }\n\n set enabled(value) {\n value = coerceBooleanProperty(value); // Only act if the actual value changed. This specifically helps to not run\n // resizeToFitContent too early (i.e. before ngAfterViewInit)\n\n if (this._enabled !== value) {\n (this._enabled = value) ? this.resizeToFitContent(true) : this.reset();\n }\n }\n\n get placeholder() {\n return this._textareaElement.placeholder;\n }\n\n set placeholder(value) {\n this._cachedPlaceholderHeight = undefined;\n this._textareaElement.placeholder = value;\n\n this._cacheTextareaPlaceholderHeight();\n }\n /** Sets the minimum height of the textarea as determined by minRows. */\n\n\n _setMinHeight() {\n const minHeight = this.minRows && this._cachedLineHeight ? `${this.minRows * this._cachedLineHeight}px` : null;\n\n if (minHeight) {\n this._textareaElement.style.minHeight = minHeight;\n }\n }\n /** Sets the maximum height of the textarea as determined by maxRows. */\n\n\n _setMaxHeight() {\n const maxHeight = this.maxRows && this._cachedLineHeight ? `${this.maxRows * this._cachedLineHeight}px` : null;\n\n if (maxHeight) {\n this._textareaElement.style.maxHeight = maxHeight;\n }\n }\n\n ngAfterViewInit() {\n if (this._platform.isBrowser) {\n // Remember the height which we started with in case autosizing is disabled\n this._initialHeight = this._textareaElement.style.height;\n this.resizeToFitContent();\n\n this._ngZone.runOutsideAngular(() => {\n const window = this._getWindow();\n\n fromEvent(window, 'resize').pipe(auditTime(16), takeUntil(this._destroyed)).subscribe(() => this.resizeToFitContent(true));\n\n this._textareaElement.addEventListener('focus', this._handleFocusEvent);\n\n this._textareaElement.addEventListener('blur', this._handleFocusEvent);\n });\n\n this._isViewInited = true;\n this.resizeToFitContent(true);\n }\n }\n\n ngOnDestroy() {\n this._textareaElement.removeEventListener('focus', this._handleFocusEvent);\n\n this._textareaElement.removeEventListener('blur', this._handleFocusEvent);\n\n this._destroyed.next();\n\n this._destroyed.complete();\n }\n /**\n * Cache the height of a single-row textarea if it has not already been cached.\n *\n * We need to know how large a single \"row\" of a textarea is in order to apply minRows and\n * maxRows. For the initial version, we will assume that the height of a single line in the\n * textarea does not ever change.\n */\n\n\n _cacheTextareaLineHeight() {\n if (this._cachedLineHeight) {\n return;\n } // Use a clone element because we have to override some styles.\n\n\n let textareaClone = this._textareaElement.cloneNode(false);\n\n textareaClone.rows = 1; // Use `position: absolute` so that this doesn't cause a browser layout and use\n // `visibility: hidden` so that nothing is rendered. Clear any other styles that\n // would affect the height.\n\n textareaClone.style.position = 'absolute';\n textareaClone.style.visibility = 'hidden';\n textareaClone.style.border = 'none';\n textareaClone.style.padding = '0';\n textareaClone.style.height = '';\n textareaClone.style.minHeight = '';\n textareaClone.style.maxHeight = ''; // In Firefox it happens that textarea elements are always bigger than the specified amount\n // of rows. This is because Firefox tries to add extra space for the horizontal scrollbar.\n // As a workaround that removes the extra space for the scrollbar, we can just set overflow\n // to hidden. This ensures that there is no invalid calculation of the line height.\n // See Firefox bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=33654\n\n textareaClone.style.overflow = 'hidden';\n\n this._textareaElement.parentNode.appendChild(textareaClone);\n\n this._cachedLineHeight = textareaClone.clientHeight;\n textareaClone.remove(); // Min and max heights have to be re-calculated if the cached line height changes\n\n this._setMinHeight();\n\n this._setMaxHeight();\n }\n\n _measureScrollHeight() {\n const element = this._textareaElement;\n const previousMargin = element.style.marginBottom || '';\n const isFirefox = this._platform.FIREFOX;\n const needsMarginFiller = isFirefox && this._hasFocus;\n const measuringClass = isFirefox ? 'cdk-textarea-autosize-measuring-firefox' : 'cdk-textarea-autosize-measuring'; // In some cases the page might move around while we're measuring the `textarea` on Firefox. We\n // work around it by assigning a temporary margin with the same height as the `textarea` so that\n // it occupies the same amount of space. 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On Firefox resizing the textarea will\n * prevent it from scrolling to the caret position. We need to re-set the selection\n * in order for it to scroll to the proper position.\n */\n\n\n _scrollToCaretPosition(textarea) {\n const {\n selectionStart,\n selectionEnd\n } = textarea; // IE will throw an \"Unspecified error\" if we try to set the selection range after the\n // element has been removed from the DOM. Assert that the directive hasn't been destroyed\n // between the time we requested the animation frame and when it was executed.\n // Also note that we have to assert that the textarea is focused before we set the\n // selection range. Setting the selection range on a non-focused textarea will cause\n // it to receive focus on IE and Edge.\n\n if (!this._destroyed.isStopped && this._hasFocus) {\n textarea.setSelectionRange(selectionStart, selectionEnd);\n }\n }\n\n}\n\nCdkTextareaAutosize.ɵfac = function CdkTextareaAutosize_Factory(t) {\n return new (t || CdkTextareaAutosize)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i1.Platform), i0.ɵɵdirectiveInject(i0.NgZone), i0.ɵɵdirectiveInject(DOCUMENT, 8));\n};\n\nCdkTextareaAutosize.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkTextareaAutosize,\n selectors: [[\"textarea\", \"cdkTextareaAutosize\", \"\"]],\n hostAttrs: [\"rows\", \"1\", 1, \"cdk-textarea-autosize\"],\n hostBindings: function CdkTextareaAutosize_HostBindings(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵlistener(\"input\", function CdkTextareaAutosize_input_HostBindingHandler() {\n return ctx._noopInputHandler();\n });\n }\n },\n inputs: {\n minRows: [\"cdkAutosizeMinRows\", \"minRows\"],\n maxRows: [\"cdkAutosizeMaxRows\", \"maxRows\"],\n enabled: [\"cdkTextareaAutosize\", \"enabled\"],\n placeholder: \"placeholder\"\n },\n exportAs: [\"cdkTextareaAutosize\"]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkTextareaAutosize, [{\n type: Directive,\n args: [{\n selector: 'textarea[cdkTextareaAutosize]',\n exportAs: 'cdkTextareaAutosize',\n host: {\n 'class': 'cdk-textarea-autosize',\n // Textarea elements that have the directive applied should have a single row by default.\n // Browsers normally show two rows by default and therefore this limits the minRows binding.\n 'rows': '1',\n '(input)': '_noopInputHandler()'\n }\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: i1.Platform\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }]\n }];\n }, {\n minRows: [{\n type: Input,\n args: ['cdkAutosizeMinRows']\n }],\n maxRows: [{\n type: Input,\n args: ['cdkAutosizeMaxRows']\n }],\n enabled: [{\n type: Input,\n args: ['cdkTextareaAutosize']\n }],\n placeholder: [{\n type: Input\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nclass TextFieldModule {}\n\nTextFieldModule.ɵfac = function TextFieldModule_Factory(t) {\n return new (t || TextFieldModule)();\n};\n\nTextFieldModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: TextFieldModule\n});\nTextFieldModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n imports: [[PlatformModule]]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(TextFieldModule, [{\n type: NgModule,\n args: [{\n declarations: [CdkAutofill, CdkTextareaAutosize],\n imports: [PlatformModule],\n exports: [CdkAutofill, CdkTextareaAutosize]\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. 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* as i1 from '@angular/cdk/platform';\nimport { normalizePassiveListenerOptions, PlatformModule } from '@angular/cdk/platform';\nimport * as i0 from '@angular/core';\nimport { Injectable, EventEmitter, Directive, Output, Optional, Inject, Input, NgModule } from '@angular/core';\nimport { coerceElement, coerceNumberProperty, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { EMPTY, Subject, fromEvent } from 'rxjs';\nimport { auditTime, takeUntil } from 'rxjs/operators';\nimport { DOCUMENT } from '@angular/common';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Options to pass to the animationstart listener. */\nconst listenerOptions = normalizePassiveListenerOptions({ passive: true });\n/**\n * An injectable service that can be used to monitor the autofill state of an input.\n * Based on the following blog post:\n * https://medium.com/@brunn/detecting-autofilled-fields-in-javascript-aed598d25da7\n */\nclass AutofillMonitor {\n constructor(_platform, _ngZone) {\n this._platform = _platform;\n this._ngZone = _ngZone;\n this._monitoredElements = new Map();\n }\n monitor(elementOrRef) {\n if (!this._platform.isBrowser) {\n return EMPTY;\n }\n const element = coerceElement(elementOrRef);\n const info = this._monitoredElements.get(element);\n if (info) {\n return info.subject;\n }\n const result = new Subject();\n const cssClass = 'cdk-text-field-autofilled';\n const listener = ((event) => {\n // Animation events fire on initial element render, we check for the presence of the autofill\n // CSS class to make sure this is a real change in state, not just the initial render before\n // we fire off events.\n if (event.animationName === 'cdk-text-field-autofill-start' &&\n !element.classList.contains(cssClass)) {\n element.classList.add(cssClass);\n this._ngZone.run(() => result.next({ target: event.target, isAutofilled: true }));\n }\n else if (event.animationName === 'cdk-text-field-autofill-end' &&\n element.classList.contains(cssClass)) {\n element.classList.remove(cssClass);\n this._ngZone.run(() => result.next({ target: event.target, isAutofilled: false }));\n }\n });\n this._ngZone.runOutsideAngular(() => {\n element.addEventListener('animationstart', listener, listenerOptions);\n element.classList.add('cdk-text-field-autofill-monitored');\n });\n this._monitoredElements.set(element, {\n subject: result,\n unlisten: () => {\n element.removeEventListener('animationstart', listener, listenerOptions);\n },\n });\n return result;\n }\n stopMonitoring(elementOrRef) {\n const element = coerceElement(elementOrRef);\n const info = this._monitoredElements.get(element);\n if (info) {\n info.unlisten();\n info.subject.complete();\n element.classList.remove('cdk-text-field-autofill-monitored');\n element.classList.remove('cdk-text-field-autofilled');\n this._monitoredElements.delete(element);\n }\n }\n ngOnDestroy() {\n this._monitoredElements.forEach((_info, element) => this.stopMonitoring(element));\n }\n}\nAutofillMonitor.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: AutofillMonitor, deps: [{ token: i1.Platform }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Injectable });\nAutofillMonitor.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: AutofillMonitor, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: AutofillMonitor, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: i1.Platform }, { type: i0.NgZone }]; } });\n/** A directive that can be used to monitor the autofill state of an input. */\nclass CdkAutofill {\n constructor(_elementRef, _autofillMonitor) {\n this._elementRef = _elementRef;\n this._autofillMonitor = _autofillMonitor;\n /** Emits when the autofill state of the element changes. */\n this.cdkAutofill = new EventEmitter();\n }\n ngOnInit() {\n this._autofillMonitor\n .monitor(this._elementRef)\n .subscribe(event => this.cdkAutofill.emit(event));\n }\n ngOnDestroy() {\n this._autofillMonitor.stopMonitoring(this._elementRef);\n }\n}\nCdkAutofill.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkAutofill, deps: [{ token: i0.ElementRef }, { token: AutofillMonitor }], target: i0.ɵɵFactoryTarget.Directive });\nCdkAutofill.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkAutofill, selector: \"[cdkAutofill]\", outputs: { cdkAutofill: \"cdkAutofill\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkAutofill, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkAutofill]',\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: AutofillMonitor }]; }, propDecorators: { cdkAutofill: [{\n type: Output\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Directive to automatically resize a textarea to fit its content. */\nclass CdkTextareaAutosize {\n constructor(_elementRef, _platform, _ngZone, \n /** @breaking-change 11.0.0 make document required */\n document) {\n this._elementRef = _elementRef;\n this._platform = _platform;\n this._ngZone = _ngZone;\n this._destroyed = new Subject();\n this._enabled = true;\n /**\n * Value of minRows as of last resize. If the minRows has decreased, the\n * height of the textarea needs to be recomputed to reflect the new minimum. The maxHeight\n * does not have the same problem because it does not affect the textarea's scrollHeight.\n */\n this._previousMinRows = -1;\n this._isViewInited = false;\n /** Handles `focus` and `blur` events. */\n this._handleFocusEvent = (event) => {\n this._hasFocus = event.type === 'focus';\n };\n this._document = document;\n this._textareaElement = this._elementRef.nativeElement;\n }\n /** Minimum amount of rows in the textarea. */\n get minRows() {\n return this._minRows;\n }\n set minRows(value) {\n this._minRows = coerceNumberProperty(value);\n this._setMinHeight();\n }\n /** Maximum amount of rows in the textarea. */\n get maxRows() {\n return this._maxRows;\n }\n set maxRows(value) {\n this._maxRows = coerceNumberProperty(value);\n this._setMaxHeight();\n }\n /** Whether autosizing is enabled or not */\n get enabled() {\n return this._enabled;\n }\n set enabled(value) {\n value = coerceBooleanProperty(value);\n // Only act if the actual value changed. This specifically helps to not run\n // resizeToFitContent too early (i.e. before ngAfterViewInit)\n if (this._enabled !== value) {\n (this._enabled = value) ? this.resizeToFitContent(true) : this.reset();\n }\n }\n get placeholder() {\n return this._textareaElement.placeholder;\n }\n set placeholder(value) {\n this._cachedPlaceholderHeight = undefined;\n this._textareaElement.placeholder = value;\n this._cacheTextareaPlaceholderHeight();\n }\n /** Sets the minimum height of the textarea as determined by minRows. */\n _setMinHeight() {\n const minHeight = this.minRows && this._cachedLineHeight ? `${this.minRows * this._cachedLineHeight}px` : null;\n if (minHeight) {\n this._textareaElement.style.minHeight = minHeight;\n }\n }\n /** Sets the maximum height of the textarea as determined by maxRows. */\n _setMaxHeight() {\n const maxHeight = this.maxRows && this._cachedLineHeight ? `${this.maxRows * this._cachedLineHeight}px` : null;\n if (maxHeight) {\n this._textareaElement.style.maxHeight = maxHeight;\n }\n }\n ngAfterViewInit() {\n if (this._platform.isBrowser) {\n // Remember the height which we started with in case autosizing is disabled\n this._initialHeight = this._textareaElement.style.height;\n this.resizeToFitContent();\n this._ngZone.runOutsideAngular(() => {\n const window = this._getWindow();\n fromEvent(window, 'resize')\n .pipe(auditTime(16), takeUntil(this._destroyed))\n .subscribe(() => this.resizeToFitContent(true));\n this._textareaElement.addEventListener('focus', this._handleFocusEvent);\n this._textareaElement.addEventListener('blur', this._handleFocusEvent);\n });\n this._isViewInited = true;\n this.resizeToFitContent(true);\n }\n }\n ngOnDestroy() {\n this._textareaElement.removeEventListener('focus', this._handleFocusEvent);\n this._textareaElement.removeEventListener('blur', this._handleFocusEvent);\n this._destroyed.next();\n this._destroyed.complete();\n }\n /**\n * Cache the height of a single-row textarea if it has not already been cached.\n *\n * We need to know how large a single \"row\" of a textarea is in order to apply minRows and\n * maxRows. For the initial version, we will assume that the height of a single line in the\n * textarea does not ever change.\n */\n _cacheTextareaLineHeight() {\n if (this._cachedLineHeight) {\n return;\n }\n // Use a clone element because we have to override some styles.\n let textareaClone = this._textareaElement.cloneNode(false);\n textareaClone.rows = 1;\n // Use `position: absolute` so that this doesn't cause a browser layout and use\n // `visibility: hidden` so that nothing is rendered. Clear any other styles that\n // would affect the height.\n textareaClone.style.position = 'absolute';\n textareaClone.style.visibility = 'hidden';\n textareaClone.style.border = 'none';\n textareaClone.style.padding = '0';\n textareaClone.style.height = '';\n textareaClone.style.minHeight = '';\n textareaClone.style.maxHeight = '';\n // In Firefox it happens that textarea elements are always bigger than the specified amount\n // of rows. This is because Firefox tries to add extra space for the horizontal scrollbar.\n // As a workaround that removes the extra space for the scrollbar, we can just set overflow\n // to hidden. This ensures that there is no invalid calculation of the line height.\n // See Firefox bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=33654\n textareaClone.style.overflow = 'hidden';\n this._textareaElement.parentNode.appendChild(textareaClone);\n this._cachedLineHeight = textareaClone.clientHeight;\n textareaClone.remove();\n // Min and max heights have to be re-calculated if the cached line height changes\n this._setMinHeight();\n this._setMaxHeight();\n }\n _measureScrollHeight() {\n const element = this._textareaElement;\n const previousMargin = element.style.marginBottom || '';\n const isFirefox = this._platform.FIREFOX;\n const needsMarginFiller = isFirefox && this._hasFocus;\n const measuringClass = isFirefox\n ? 'cdk-textarea-autosize-measuring-firefox'\n : 'cdk-textarea-autosize-measuring';\n // In some cases the page might move around while we're measuring the `textarea` on Firefox. We\n // work around it by assigning a temporary margin with the same height as the `textarea` so that\n // it occupies the same amount of space. See #23233.\n if (needsMarginFiller) {\n element.style.marginBottom = `${element.clientHeight}px`;\n }\n // Reset the textarea height to auto in order to shrink back to its default size.\n // Also temporarily force overflow:hidden, so scroll bars do not interfere with calculations.\n element.classList.add(measuringClass);\n // The measuring class includes a 2px padding to workaround an issue with Chrome,\n // so we account for that extra space here by subtracting 4 (2px top + 2px bottom).\n const scrollHeight = element.scrollHeight - 4;\n element.classList.remove(measuringClass);\n if (needsMarginFiller) {\n element.style.marginBottom = previousMargin;\n }\n return scrollHeight;\n }\n _cacheTextareaPlaceholderHeight() {\n if (!this._isViewInited || this._cachedPlaceholderHeight != undefined) {\n return;\n }\n if (!this.placeholder) {\n this._cachedPlaceholderHeight = 0;\n return;\n }\n const value = this._textareaElement.value;\n this._textareaElement.value = this._textareaElement.placeholder;\n this._cachedPlaceholderHeight = this._measureScrollHeight();\n this._textareaElement.value = value;\n }\n ngDoCheck() {\n if (this._platform.isBrowser) {\n this.resizeToFitContent();\n }\n }\n /**\n * Resize the textarea to fit its content.\n * @param force Whether to force a height recalculation. By default the height will be\n * recalculated only if the value changed since the last call.\n */\n resizeToFitContent(force = false) {\n // If autosizing is disabled, just skip everything else\n if (!this._enabled) {\n return;\n }\n this._cacheTextareaLineHeight();\n this._cacheTextareaPlaceholderHeight();\n // If we haven't determined the line-height yet, we know we're still hidden and there's no point\n // in checking the height of the textarea.\n if (!this._cachedLineHeight) {\n return;\n }\n const textarea = this._elementRef.nativeElement;\n const value = textarea.value;\n // Only resize if the value or minRows have changed since these calculations can be expensive.\n if (!force && this._minRows === this._previousMinRows && value === this._previousValue) {\n return;\n }\n const scrollHeight = this._measureScrollHeight();\n const height = Math.max(scrollHeight, this._cachedPlaceholderHeight || 0);\n // Use the scrollHeight to know how large the textarea *would* be if fit its entire value.\n textarea.style.height = `${height}px`;\n this._ngZone.runOutsideAngular(() => {\n if (typeof requestAnimationFrame !== 'undefined') {\n requestAnimationFrame(() => this._scrollToCaretPosition(textarea));\n }\n else {\n setTimeout(() => this._scrollToCaretPosition(textarea));\n }\n });\n this._previousValue = value;\n this._previousMinRows = this._minRows;\n }\n /**\n * Resets the textarea to its original size\n */\n reset() {\n // Do not try to change the textarea, if the initialHeight has not been determined yet\n // This might potentially remove styles when reset() is called before ngAfterViewInit\n if (this._initialHeight !== undefined) {\n this._textareaElement.style.height = this._initialHeight;\n }\n }\n _noopInputHandler() {\n // no-op handler that ensures we're running change detection on input events.\n }\n /** Access injected document if available or fallback to global document reference */\n _getDocument() {\n return this._document || document;\n }\n /** Use defaultView of injected document if available or fallback to global window reference */\n _getWindow() {\n const doc = this._getDocument();\n return doc.defaultView || window;\n }\n /**\n * Scrolls a textarea to the caret position. On Firefox resizing the textarea will\n * prevent it from scrolling to the caret position. We need to re-set the selection\n * in order for it to scroll to the proper position.\n */\n _scrollToCaretPosition(textarea) {\n const { selectionStart, selectionEnd } = textarea;\n // IE will throw an \"Unspecified error\" if we try to set the selection range after the\n // element has been removed from the DOM. Assert that the directive hasn't been destroyed\n // between the time we requested the animation frame and when it was executed.\n // Also note that we have to assert that the textarea is focused before we set the\n // selection range. Setting the selection range on a non-focused textarea will cause\n // it to receive focus on IE and Edge.\n if (!this._destroyed.isStopped && this._hasFocus) {\n textarea.setSelectionRange(selectionStart, selectionEnd);\n }\n }\n}\nCdkTextareaAutosize.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkTextareaAutosize, deps: [{ token: i0.ElementRef }, { token: i1.Platform }, { token: i0.NgZone }, { token: DOCUMENT, optional: true }], target: i0.ɵɵFactoryTarget.Directive });\nCdkTextareaAutosize.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkTextareaAutosize, selector: \"textarea[cdkTextareaAutosize]\", inputs: { minRows: [\"cdkAutosizeMinRows\", \"minRows\"], maxRows: [\"cdkAutosizeMaxRows\", \"maxRows\"], enabled: [\"cdkTextareaAutosize\", \"enabled\"], placeholder: \"placeholder\" }, host: { attributes: { \"rows\": \"1\" }, listeners: { \"input\": \"_noopInputHandler()\" }, classAttribute: \"cdk-textarea-autosize\" }, exportAs: [\"cdkTextareaAutosize\"], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkTextareaAutosize, decorators: [{\n type: Directive,\n args: [{\n selector: 'textarea[cdkTextareaAutosize]',\n exportAs: 'cdkTextareaAutosize',\n host: {\n 'class': 'cdk-textarea-autosize',\n // Textarea elements that have the directive applied should have a single row by default.\n // Browsers normally show two rows by default and therefore this limits the minRows binding.\n 'rows': '1',\n '(input)': '_noopInputHandler()',\n },\n }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i1.Platform }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [DOCUMENT]\n }] }]; }, propDecorators: { minRows: [{\n type: Input,\n args: ['cdkAutosizeMinRows']\n }], maxRows: [{\n type: Input,\n args: ['cdkAutosizeMaxRows']\n }], enabled: [{\n type: Input,\n args: ['cdkTextareaAutosize']\n }], placeholder: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass TextFieldModule {\n}\nTextFieldModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: TextFieldModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nTextFieldModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: TextFieldModule, declarations: [CdkAutofill, CdkTextareaAutosize], imports: [PlatformModule], exports: [CdkAutofill, CdkTextareaAutosize] });\nTextFieldModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: TextFieldModule, imports: [[PlatformModule]] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: TextFieldModule, decorators: [{\n type: NgModule,\n args: [{\n declarations: [CdkAutofill, CdkTextareaAutosize],\n imports: [PlatformModule],\n exports: [CdkAutofill, CdkTextareaAutosize],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AutofillMonitor, CdkAutofill, CdkTextareaAutosize, TextFieldModule };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/cdec284094ef06313fc56d2dd9479cad.json
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--- trip-planner-front/node_modules/.cache/babel-webpack/cdec284094ef06313fc56d2dd9479cad.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/cdec284094ef06313fc56d2dd9479cad.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { PLATFORM_ID, Injectable, Inject, NgModule } from '@angular/core';\nimport { isPlatformBrowser } from '@angular/common';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Whether the current platform supports the V8 Break Iterator. The V8 check\n// is necessary to detect all Blink based browsers.\n\nlet hasV8BreakIterator; // We need a try/catch around the reference to `Intl`, because accessing it in some cases can\n// cause IE to throw. These cases are tied to particular versions of Windows and can happen if\n// the consumer is providing a polyfilled `Map`. See:\n// https://github.com/Microsoft/ChakraCore/issues/3189\n// https://github.com/angular/components/issues/15687\n\ntry {\n hasV8BreakIterator = typeof Intl !== 'undefined' && Intl.v8BreakIterator;\n} catch {\n hasV8BreakIterator = false;\n}\n/**\n * Service to detect the current platform by comparing the userAgent strings and\n * checking browser-specific global properties.\n */\n\n\nclass Platform {\n constructor(_platformId) {\n this._platformId = _platformId; // We want to use the Angular platform check because if the Document is shimmed\n // without the navigator, the following checks will fail. This is preferred because\n // sometimes the Document may be shimmed without the user's knowledge or intention\n\n /** Whether the Angular application is being rendered in the browser. */\n\n this.isBrowser = this._platformId ? isPlatformBrowser(this._platformId) : typeof document === 'object' && !!document;\n /** Whether the current browser is Microsoft Edge. */\n\n this.EDGE = this.isBrowser && /(edge)/i.test(navigator.userAgent);\n /** Whether the current rendering engine is Microsoft Trident. */\n\n this.TRIDENT = this.isBrowser && /(msie|trident)/i.test(navigator.userAgent); // EdgeHTML and Trident mock Blink specific things and need to be excluded from this check.\n\n /** Whether the current rendering engine is Blink. */\n\n this.BLINK = this.isBrowser && !!(window.chrome || hasV8BreakIterator) && typeof CSS !== 'undefined' && !this.EDGE && !this.TRIDENT; // Webkit is part of the userAgent in EdgeHTML, Blink and Trident. Therefore we need to\n // ensure that Webkit runs standalone and is not used as another engine's base.\n\n /** Whether the current rendering engine is WebKit. */\n\n this.WEBKIT = this.isBrowser && /AppleWebKit/i.test(navigator.userAgent) && !this.BLINK && !this.EDGE && !this.TRIDENT;\n /** Whether the current platform is Apple iOS. */\n\n this.IOS = this.isBrowser && /iPad|iPhone|iPod/.test(navigator.userAgent) && !('MSStream' in window); // It's difficult to detect the plain Gecko engine, because most of the browsers identify\n // them self as Gecko-like browsers and modify the userAgent's according to that.\n // Since we only cover one explicit Firefox case, we can simply check for Firefox\n // instead of having an unstable check for Gecko.\n\n /** Whether the current browser is Firefox. */\n\n this.FIREFOX = this.isBrowser && /(firefox|minefield)/i.test(navigator.userAgent);\n /** Whether the current platform is Android. */\n // Trident on mobile adds the android platform to the userAgent to trick detections.\n\n this.ANDROID = this.isBrowser && /android/i.test(navigator.userAgent) && !this.TRIDENT; // Safari browsers will include the Safari keyword in their userAgent. Some browsers may fake\n // this and just place the Safari keyword in the userAgent. To be more safe about Safari every\n // Safari browser should also use Webkit as its layout engine.\n\n /** Whether the current browser is Safari. */\n\n this.SAFARI = this.isBrowser && /safari/i.test(navigator.userAgent) && this.WEBKIT;\n }\n\n}\n\nPlatform.ɵfac = function Platform_Factory(t) {\n return new (t || Platform)(i0.ɵɵinject(PLATFORM_ID));\n};\n\nPlatform.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: Platform,\n factory: Platform.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Platform, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: Object,\n decorators: [{\n type: Inject,\n args: [PLATFORM_ID]\n }]\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nclass PlatformModule {}\n\nPlatformModule.ɵfac = function PlatformModule_Factory(t) {\n return new (t || PlatformModule)();\n};\n\nPlatformModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: PlatformModule\n});\nPlatformModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(PlatformModule, [{\n type: NgModule,\n args: [{}]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Cached result Set of input types support by the current browser. */\n\n\nlet supportedInputTypes;\n/** Types of `` that *might* be supported. */\n\nconst candidateInputTypes = [// `color` must come first. Chrome 56 shows a warning if we change the type to `color` after\n// first changing it to something else:\n// The specified value \"\" does not conform to the required format.\n// The format is \"#rrggbb\" where rr, gg, bb are two-digit hexadecimal numbers.\n'color', 'button', 'checkbox', 'date', 'datetime-local', 'email', 'file', 'hidden', 'image', 'month', 'number', 'password', 'radio', 'range', 'reset', 'search', 'submit', 'tel', 'text', 'time', 'url', 'week'];\n/** @returns The input types supported by this browser. */\n\nfunction getSupportedInputTypes() {\n // Result is cached.\n if (supportedInputTypes) {\n return supportedInputTypes;\n } // We can't check if an input type is not supported until we're on the browser, so say that\n // everything is supported when not on the browser. We don't use `Platform` here since it's\n // just a helper function and can't inject it.\n\n\n if (typeof document !== 'object' || !document) {\n supportedInputTypes = new Set(candidateInputTypes);\n return supportedInputTypes;\n }\n\n let featureTestInput = document.createElement('input');\n supportedInputTypes = new Set(candidateInputTypes.filter(value => {\n featureTestInput.setAttribute('type', value);\n return featureTestInput.type === value;\n }));\n return supportedInputTypes;\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Cached result of whether the user's browser supports passive event listeners. */\n\n\nlet supportsPassiveEvents;\n/**\n * Checks whether the user's browser supports passive event listeners.\n * See: https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md\n */\n\nfunction supportsPassiveEventListeners() {\n if (supportsPassiveEvents == null && typeof window !== 'undefined') {\n try {\n window.addEventListener('test', null, Object.defineProperty({}, 'passive', {\n get: () => supportsPassiveEvents = true\n }));\n } finally {\n supportsPassiveEvents = supportsPassiveEvents || false;\n }\n }\n\n return supportsPassiveEvents;\n}\n/**\n * Normalizes an `AddEventListener` object to something that can be passed\n * to `addEventListener` on any browser, no matter whether it supports the\n * `options` parameter.\n * @param options Object to be normalized.\n */\n\n\nfunction normalizePassiveListenerOptions(options) {\n return supportsPassiveEventListeners() ? options : !!options.capture;\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Cached result of the way the browser handles the horizontal scroll axis in RTL mode. */\n\n\nlet rtlScrollAxisType;\n/** Cached result of the check that indicates whether the browser supports scroll behaviors. */\n\nlet scrollBehaviorSupported;\n/** Check whether the browser supports scroll behaviors. */\n\nfunction supportsScrollBehavior() {\n if (scrollBehaviorSupported == null) {\n // If we're not in the browser, it can't be supported. 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The V8 check\n// is necessary to detect all Blink based browsers.\nlet hasV8BreakIterator;\n// We need a try/catch around the reference to `Intl`, because accessing it in some cases can\n// cause IE to throw. These cases are tied to particular versions of Windows and can happen if\n// the consumer is providing a polyfilled `Map`. See:\n// https://github.com/Microsoft/ChakraCore/issues/3189\n// https://github.com/angular/components/issues/15687\ntry {\n hasV8BreakIterator = typeof Intl !== 'undefined' && Intl.v8BreakIterator;\n}\ncatch {\n hasV8BreakIterator = false;\n}\n/**\n * Service to detect the current platform by comparing the userAgent strings and\n * checking browser-specific global properties.\n */\nclass Platform {\n constructor(_platformId) {\n this._platformId = _platformId;\n // We want to use the Angular platform check because if the Document is shimmed\n // without the navigator, the following checks will fail. 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To be more safe about Safari every\n // Safari browser should also use Webkit as its layout engine.\n /** Whether the current browser is Safari. */\n this.SAFARI = this.isBrowser && /safari/i.test(navigator.userAgent) && this.WEBKIT;\n }\n}\nPlatform.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: Platform, deps: [{ token: PLATFORM_ID }], target: i0.ɵɵFactoryTarget.Injectable });\nPlatform.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: Platform, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: Platform, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: Object, decorators: [{\n type: Inject,\n args: [PLATFORM_ID]\n }] }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass PlatformModule {\n}\nPlatformModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PlatformModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nPlatformModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PlatformModule });\nPlatformModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PlatformModule });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: PlatformModule, decorators: [{\n type: NgModule,\n args: [{}]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Cached result Set of input types support by the current browser. */\nlet supportedInputTypes;\n/** Types of `` that *might* be supported. */\nconst candidateInputTypes = [\n // `color` must come first. Chrome 56 shows a warning if we change the type to `color` after\n // first changing it to something else:\n // The specified value \"\" does not conform to the required format.\n // The format is \"#rrggbb\" where rr, gg, bb are two-digit hexadecimal numbers.\n 'color',\n 'button',\n 'checkbox',\n 'date',\n 'datetime-local',\n 'email',\n 'file',\n 'hidden',\n 'image',\n 'month',\n 'number',\n 'password',\n 'radio',\n 'range',\n 'reset',\n 'search',\n 'submit',\n 'tel',\n 'text',\n 'time',\n 'url',\n 'week',\n];\n/** @returns The input types supported by this browser. */\nfunction getSupportedInputTypes() {\n // Result is cached.\n if (supportedInputTypes) {\n return supportedInputTypes;\n }\n // We can't check if an input type is not supported until we're on the browser, so say that\n // everything is supported when not on the browser. We don't use `Platform` here since it's\n // just a helper function and can't inject it.\n if (typeof document !== 'object' || !document) {\n supportedInputTypes = new Set(candidateInputTypes);\n return supportedInputTypes;\n }\n let featureTestInput = document.createElement('input');\n supportedInputTypes = new Set(candidateInputTypes.filter(value => {\n featureTestInput.setAttribute('type', value);\n return featureTestInput.type === value;\n }));\n return supportedInputTypes;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Cached result of whether the user's browser supports passive event listeners. */\nlet supportsPassiveEvents;\n/**\n * Checks whether the user's browser supports passive event listeners.\n * See: https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md\n */\nfunction supportsPassiveEventListeners() {\n if (supportsPassiveEvents == null && typeof window !== 'undefined') {\n try {\n window.addEventListener('test', null, Object.defineProperty({}, 'passive', {\n get: () => (supportsPassiveEvents = true),\n }));\n }\n finally {\n supportsPassiveEvents = supportsPassiveEvents || false;\n }\n }\n return supportsPassiveEvents;\n}\n/**\n * Normalizes an `AddEventListener` object to something that can be passed\n * to `addEventListener` on any browser, no matter whether it supports the\n * `options` parameter.\n * @param options Object to be normalized.\n */\nfunction normalizePassiveListenerOptions(options) {\n return supportsPassiveEventListeners() ? options : !!options.capture;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Cached result of the way the browser handles the horizontal scroll axis in RTL mode. */\nlet rtlScrollAxisType;\n/** Cached result of the check that indicates whether the browser supports scroll behaviors. */\nlet scrollBehaviorSupported;\n/** Check whether the browser supports scroll behaviors. */\nfunction supportsScrollBehavior() {\n if (scrollBehaviorSupported == null) {\n // If we're not in the browser, it can't be supported. Also check for `Element`, because\n // some projects stub out the global `document` during SSR which can throw us off.\n if (typeof document !== 'object' || !document || typeof Element !== 'function' || !Element) {\n scrollBehaviorSupported = false;\n return scrollBehaviorSupported;\n }\n // If the element can have a `scrollBehavior` style, we can be sure that it's supported.\n if ('scrollBehavior' in document.documentElement.style) {\n scrollBehaviorSupported = true;\n }\n else {\n // At this point we have 3 possibilities: `scrollTo` isn't supported at all, it's\n // supported but it doesn't handle scroll behavior, or it has been polyfilled.\n const scrollToFunction = Element.prototype.scrollTo;\n if (scrollToFunction) {\n // We can detect if the function has been polyfilled by calling `toString` on it. Native\n // functions are obfuscated using `[native code]`, whereas if it was overwritten we'd get\n // the actual function source. Via https://davidwalsh.name/detect-native-function. Consider\n // polyfilled functions as supporting scroll behavior.\n scrollBehaviorSupported = !/\\{\\s*\\[native code\\]\\s*\\}/.test(scrollToFunction.toString());\n }\n else {\n scrollBehaviorSupported = false;\n }\n }\n }\n return scrollBehaviorSupported;\n}\n/**\n * Checks the type of RTL scroll axis used by this browser. As of time of writing, Chrome is NORMAL,\n * Firefox & Safari are NEGATED, and IE & Edge are INVERTED.\n */\nfunction getRtlScrollAxisType() {\n // We can't check unless we're on the browser. Just assume 'normal' if we're not.\n if (typeof document !== 'object' || !document) {\n return 0 /* NORMAL */;\n }\n if (rtlScrollAxisType == null) {\n // Create a 1px wide scrolling container and a 2px wide content element.\n const scrollContainer = document.createElement('div');\n const containerStyle = scrollContainer.style;\n scrollContainer.dir = 'rtl';\n containerStyle.width = '1px';\n containerStyle.overflow = 'auto';\n containerStyle.visibility = 'hidden';\n containerStyle.pointerEvents = 'none';\n containerStyle.position = 'absolute';\n const content = document.createElement('div');\n const contentStyle = content.style;\n contentStyle.width = '2px';\n contentStyle.height = '1px';\n scrollContainer.appendChild(content);\n document.body.appendChild(scrollContainer);\n rtlScrollAxisType = 0 /* NORMAL */;\n // The viewport starts scrolled all the way to the right in RTL mode. If we are in a NORMAL\n // browser this would mean that the scrollLeft should be 1. If it's zero instead we know we're\n // dealing with one of the other two types of browsers.\n if (scrollContainer.scrollLeft === 0) {\n // In a NEGATED browser the scrollLeft is always somewhere in [-maxScrollAmount, 0]. For an\n // INVERTED browser it is always somewhere in [0, maxScrollAmount]. We can determine which by\n // setting to the scrollLeft to 1. This is past the max for a NEGATED browser, so it will\n // return 0 when we read it again.\n scrollContainer.scrollLeft = 1;\n rtlScrollAxisType =\n scrollContainer.scrollLeft === 0 ? 1 /* NEGATED */ : 2 /* INVERTED */;\n }\n scrollContainer.remove();\n }\n return rtlScrollAxisType;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nlet shadowDomIsSupported;\n/** Checks whether the user's browser support Shadow DOM. */\nfunction _supportsShadowDom() {\n if (shadowDomIsSupported == null) {\n const head = typeof document !== 'undefined' ? document.head : null;\n shadowDomIsSupported = !!(head && (head.createShadowRoot || head.attachShadow));\n }\n return shadowDomIsSupported;\n}\n/** Gets the shadow root of an element, if supported and the element is inside the Shadow DOM. */\nfunction _getShadowRoot(element) {\n if (_supportsShadowDom()) {\n const rootNode = element.getRootNode ? element.getRootNode() : null;\n // Note that this should be caught by `_supportsShadowDom`, but some\n // teams have been able to hit this code path on unsupported browsers.\n if (typeof ShadowRoot !== 'undefined' && ShadowRoot && rootNode instanceof ShadowRoot) {\n return rootNode;\n }\n }\n return null;\n}\n/**\n * Gets the currently-focused element on the page while\n * also piercing through Shadow DOM boundaries.\n */\nfunction _getFocusedElementPierceShadowDom() {\n let activeElement = typeof document !== 'undefined' && document\n ? document.activeElement\n : null;\n while (activeElement && activeElement.shadowRoot) {\n const newActiveElement = activeElement.shadowRoot.activeElement;\n if (newActiveElement === activeElement) {\n break;\n }\n else {\n activeElement = newActiveElement;\n }\n }\n return activeElement;\n}\n/** Gets the target of an event while accounting for Shadow DOM. */\nfunction _getEventTarget(event) {\n // If an event is bound outside the Shadow DOM, the `event.target` will\n // point to the shadow root so we have to use `composedPath` instead.\n return (event.composedPath ? event.composedPath()[0] : event.target);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Gets whether the code is currently running in a test environment. */\nfunction _isTestEnvironment() {\n // We can't use `declare const` because it causes conflicts inside Google with the real typings\n // for these symbols and we can't read them off the global object, because they don't appear to\n // be attached there for some runners like Jest.\n // (see: https://github.com/angular/components/issues/23365#issuecomment-938146643)\n return (\n // @ts-ignore\n (typeof __karma__ !== 'undefined' && !!__karma__) ||\n // @ts-ignore\n (typeof jasmine !== 'undefined' && !!jasmine) ||\n // @ts-ignore\n (typeof jest !== 'undefined' && !!jest) ||\n // @ts-ignore\n (typeof Mocha !== 'undefined' && !!Mocha));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Platform, PlatformModule, _getEventTarget, _getFocusedElementPierceShadowDom, _getShadowRoot, _isTestEnvironment, _supportsShadowDom, getRtlScrollAxisType, getSupportedInputTypes, normalizePassiveListenerOptions, supportsPassiveEventListeners, supportsScrollBehavior };\n"]},"metadata":{},"sourceType":"module"}
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@@ -0,0 +1,1 @@
+{"ast":null,"code":"import { isObservable, of, Subject } from 'rxjs';\nimport * as i0 from '@angular/core';\nimport { Injectable, InjectionToken } from '@angular/core';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nclass DataSource {}\n/** Checks whether an object is a data source. */\n\n\nfunction isDataSource(value) {\n // Check if the value is a DataSource by observing if it has a connect function. Cannot\n // be checked as an `instanceof DataSource` since people could create their own sources\n // that match the interface, but don't extend DataSource.\n return value && typeof value.connect === 'function';\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** DataSource wrapper for a native array. */\n\n\nclass ArrayDataSource extends DataSource {\n constructor(_data) {\n super();\n this._data = _data;\n }\n\n connect() {\n return isObservable(this._data) ? this._data : of(this._data);\n }\n\n disconnect() {}\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * A repeater that destroys views when they are removed from a\n * {@link ViewContainerRef}. When new items are inserted into the container,\n * the repeater will always construct a new embedded view for each item.\n *\n * @template T The type for the embedded view's $implicit property.\n * @template R The type for the item in each IterableDiffer change record.\n * @template C The type for the context passed to each embedded view.\n */\n\n\nclass _DisposeViewRepeaterStrategy {\n applyChanges(changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {\n changes.forEachOperation((record, adjustedPreviousIndex, currentIndex) => {\n let view;\n let operation;\n\n if (record.previousIndex == null) {\n const insertContext = itemContextFactory(record, adjustedPreviousIndex, currentIndex);\n view = viewContainerRef.createEmbeddedView(insertContext.templateRef, insertContext.context, insertContext.index);\n operation = 1\n /* INSERTED */\n ;\n } else if (currentIndex == null) {\n viewContainerRef.remove(adjustedPreviousIndex);\n operation = 3\n /* REMOVED */\n ;\n } else {\n view = viewContainerRef.get(adjustedPreviousIndex);\n viewContainerRef.move(view, currentIndex);\n operation = 2\n /* MOVED */\n ;\n }\n\n if (itemViewChanged) {\n itemViewChanged({\n context: view?.context,\n operation,\n record\n });\n }\n });\n }\n\n detach() {}\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * A repeater that caches views when they are removed from a\n * {@link ViewContainerRef}. When new items are inserted into the container,\n * the repeater will reuse one of the cached views instead of creating a new\n * embedded view. Recycling cached views reduces the quantity of expensive DOM\n * inserts.\n *\n * @template T The type for the embedded view's $implicit property.\n * @template R The type for the item in each IterableDiffer change record.\n * @template C The type for the context passed to each embedded view.\n */\n\n\nclass _RecycleViewRepeaterStrategy {\n constructor() {\n /**\n * The size of the cache used to store unused views.\n * Setting the cache size to `0` will disable caching. Defaults to 20 views.\n */\n this.viewCacheSize = 20;\n /**\n * View cache that stores embedded view instances that have been previously stamped out,\n * but don't are not currently rendered. The view repeater will reuse these views rather than\n * creating brand new ones.\n *\n * TODO(michaeljamesparsons) Investigate whether using a linked list would improve performance.\n */\n\n this._viewCache = [];\n }\n /** Apply changes to the DOM. */\n\n\n applyChanges(changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {\n // Rearrange the views to put them in the right location.\n changes.forEachOperation((record, adjustedPreviousIndex, currentIndex) => {\n let view;\n let operation;\n\n if (record.previousIndex == null) {\n // Item added.\n const viewArgsFactory = () => itemContextFactory(record, adjustedPreviousIndex, currentIndex);\n\n view = this._insertView(viewArgsFactory, currentIndex, viewContainerRef, itemValueResolver(record));\n operation = view ? 1\n /* INSERTED */\n : 0\n /* REPLACED */\n ;\n } else if (currentIndex == null) {\n // Item removed.\n this._detachAndCacheView(adjustedPreviousIndex, viewContainerRef);\n\n operation = 3\n /* REMOVED */\n ;\n } else {\n // Item moved.\n view = this._moveView(adjustedPreviousIndex, currentIndex, viewContainerRef, itemValueResolver(record));\n operation = 2\n /* MOVED */\n ;\n }\n\n if (itemViewChanged) {\n itemViewChanged({\n context: view?.context,\n operation,\n record\n });\n }\n });\n }\n\n detach() {\n for (const view of this._viewCache) {\n view.destroy();\n }\n\n this._viewCache = [];\n }\n /**\n * Inserts a view for a new item, either from the cache or by creating a new\n * one. Returns `undefined` if the item was inserted into a cached view.\n */\n\n\n _insertView(viewArgsFactory, currentIndex, viewContainerRef, value) {\n const cachedView = this._insertViewFromCache(currentIndex, viewContainerRef);\n\n if (cachedView) {\n cachedView.context.$implicit = value;\n return undefined;\n }\n\n const viewArgs = viewArgsFactory();\n return viewContainerRef.createEmbeddedView(viewArgs.templateRef, viewArgs.context, viewArgs.index);\n }\n /** Detaches the view at the given index and inserts into the view cache. */\n\n\n _detachAndCacheView(index, viewContainerRef) {\n const detachedView = viewContainerRef.detach(index);\n\n this._maybeCacheView(detachedView, viewContainerRef);\n }\n /** Moves view at the previous index to the current index. */\n\n\n _moveView(adjustedPreviousIndex, currentIndex, viewContainerRef, value) {\n const view = viewContainerRef.get(adjustedPreviousIndex);\n viewContainerRef.move(view, currentIndex);\n view.context.$implicit = value;\n return view;\n }\n /**\n * Cache the given detached view. If the cache is full, the view will be\n * destroyed.\n */\n\n\n _maybeCacheView(view, viewContainerRef) {\n if (this._viewCache.length < this.viewCacheSize) {\n this._viewCache.push(view);\n } else {\n const index = viewContainerRef.indexOf(view); // The host component could remove views from the container outside of\n // the view repeater. It's unlikely this will occur, but just in case,\n // destroy the view on its own, otherwise destroy it through the\n // container to ensure that all the references are removed.\n\n if (index === -1) {\n view.destroy();\n } else {\n viewContainerRef.remove(index);\n }\n }\n }\n /** Inserts a recycled view from the cache at the given index. */\n\n\n _insertViewFromCache(index, viewContainerRef) {\n const cachedView = this._viewCache.pop();\n\n if (cachedView) {\n viewContainerRef.insert(cachedView, index);\n }\n\n return cachedView || null;\n }\n\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Class to be used to power selecting one or more options from a list.\n */\n\n\nclass SelectionModel {\n constructor(_multiple = false, initiallySelectedValues, _emitChanges = true) {\n this._multiple = _multiple;\n this._emitChanges = _emitChanges;\n /** Currently-selected values. */\n\n this._selection = new Set();\n /** Keeps track of the deselected options that haven't been emitted by the change event. */\n\n this._deselectedToEmit = [];\n /** Keeps track of the selected options that haven't been emitted by the change event. */\n\n this._selectedToEmit = [];\n /** Event emitted when the value has changed. */\n\n this.changed = new Subject();\n\n if (initiallySelectedValues && initiallySelectedValues.length) {\n if (_multiple) {\n initiallySelectedValues.forEach(value => this._markSelected(value));\n } else {\n this._markSelected(initiallySelectedValues[0]);\n } // Clear the array in order to avoid firing the change event for preselected values.\n\n\n this._selectedToEmit.length = 0;\n }\n }\n /** Selected values. */\n\n\n get selected() {\n if (!this._selected) {\n this._selected = Array.from(this._selection.values());\n }\n\n return this._selected;\n }\n /**\n * Selects a value or an array of values.\n */\n\n\n select(...values) {\n this._verifyValueAssignment(values);\n\n values.forEach(value => this._markSelected(value));\n\n this._emitChangeEvent();\n }\n /**\n * Deselects a value or an array of values.\n */\n\n\n deselect(...values) {\n this._verifyValueAssignment(values);\n\n values.forEach(value => this._unmarkSelected(value));\n\n this._emitChangeEvent();\n }\n /**\n * Toggles a value between selected and deselected.\n */\n\n\n toggle(value) {\n this.isSelected(value) ? this.deselect(value) : this.select(value);\n }\n /**\n * Clears all of the selected values.\n */\n\n\n clear() {\n this._unmarkAll();\n\n this._emitChangeEvent();\n }\n /**\n * Determines whether a value is selected.\n */\n\n\n isSelected(value) {\n return this._selection.has(value);\n }\n /**\n * Determines whether the model does not have a value.\n */\n\n\n isEmpty() {\n return this._selection.size === 0;\n }\n /**\n * Determines whether the model has a value.\n */\n\n\n hasValue() {\n return !this.isEmpty();\n }\n /**\n * Sorts the selected values based on a predicate function.\n */\n\n\n sort(predicate) {\n if (this._multiple && this.selected) {\n this._selected.sort(predicate);\n }\n }\n /**\n * Gets whether multiple values can be selected.\n */\n\n\n isMultipleSelection() {\n return this._multiple;\n }\n /** Emits a change event and clears the records of selected and deselected values. */\n\n\n _emitChangeEvent() {\n // Clear the selected values so they can be re-cached.\n this._selected = null;\n\n if (this._selectedToEmit.length || this._deselectedToEmit.length) {\n this.changed.next({\n source: this,\n added: this._selectedToEmit,\n removed: this._deselectedToEmit\n });\n this._deselectedToEmit = [];\n this._selectedToEmit = [];\n }\n }\n /** Selects a value. */\n\n\n _markSelected(value) {\n if (!this.isSelected(value)) {\n if (!this._multiple) {\n this._unmarkAll();\n }\n\n this._selection.add(value);\n\n if (this._emitChanges) {\n this._selectedToEmit.push(value);\n }\n }\n }\n /** Deselects a value. */\n\n\n _unmarkSelected(value) {\n if (this.isSelected(value)) {\n this._selection.delete(value);\n\n if (this._emitChanges) {\n this._deselectedToEmit.push(value);\n }\n }\n }\n /** Clears out the selected values. */\n\n\n _unmarkAll() {\n if (!this.isEmpty()) {\n this._selection.forEach(value => this._unmarkSelected(value));\n }\n }\n /**\n * Verifies the value assignment and throws an error if the specified value array is\n * including multiple values while the selection model is not supporting multiple values.\n */\n\n\n _verifyValueAssignment(values) {\n if (values.length > 1 && !this._multiple && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw getMultipleValuesInSingleSelectionError();\n }\n }\n\n}\n/**\n * Returns an error that reports that multiple values are passed into a selection model\n * with a single value.\n * @docs-private\n */\n\n\nfunction getMultipleValuesInSingleSelectionError() {\n return Error('Cannot pass multiple values into SelectionModel with single-value mode.');\n}\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Class to coordinate unique selection based on name.\n * Intended to be consumed as an Angular service.\n * This service is needed because native radio change events are only fired on the item currently\n * being selected, and we still need to uncheck the previous selection.\n *\n * This service does not *store* any IDs and names because they may change at any time, so it is\n * less error-prone if they are simply passed through when the events occur.\n */\n\n\nclass UniqueSelectionDispatcher {\n constructor() {\n this._listeners = [];\n }\n /**\n * Notify other items that selection for the given name has been set.\n * @param id ID of the item.\n * @param name Name of the item.\n */\n\n\n notify(id, name) {\n for (let listener of this._listeners) {\n listener(id, name);\n }\n }\n /**\n * Listen for future changes to item selection.\n * @return Function used to deregister listener\n */\n\n\n listen(listener) {\n this._listeners.push(listener);\n\n return () => {\n this._listeners = this._listeners.filter(registered => {\n return listener !== registered;\n });\n };\n }\n\n ngOnDestroy() {\n this._listeners = [];\n }\n\n}\n\nUniqueSelectionDispatcher.ɵfac = function UniqueSelectionDispatcher_Factory(t) {\n return new (t || UniqueSelectionDispatcher)();\n};\n\nUniqueSelectionDispatcher.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: UniqueSelectionDispatcher,\n factory: UniqueSelectionDispatcher.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(UniqueSelectionDispatcher, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Injection token for {@link _ViewRepeater}. This token is for use by Angular Material only.\n * @docs-private\n */\n\n\nconst _VIEW_REPEATER_STRATEGY = new InjectionToken('_ViewRepeater');\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { ArrayDataSource, DataSource, SelectionModel, UniqueSelectionDispatcher, _DisposeViewRepeaterStrategy, _RecycleViewRepeaterStrategy, _VIEW_REPEATER_STRATEGY, getMultipleValuesInSingleSelectionError, isDataSource 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Cannot\n // be checked as an `instanceof DataSource` since people could create their own sources\n // that match the interface, but don't extend DataSource.\n return value && typeof value.connect === 'function';\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** DataSource wrapper for a native array. */\nclass ArrayDataSource extends DataSource {\n constructor(_data) {\n super();\n this._data = _data;\n }\n connect() {\n return isObservable(this._data) ? this._data : of(this._data);\n }\n disconnect() { }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A repeater that destroys views when they are removed from a\n * {@link ViewContainerRef}. When new items are inserted into the container,\n * the repeater will always construct a new embedded view for each item.\n *\n * @template T The type for the embedded view's $implicit property.\n * @template R The type for the item in each IterableDiffer change record.\n * @template C The type for the context passed to each embedded view.\n */\nclass _DisposeViewRepeaterStrategy {\n applyChanges(changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {\n changes.forEachOperation((record, adjustedPreviousIndex, currentIndex) => {\n let view;\n let operation;\n if (record.previousIndex == null) {\n const insertContext = itemContextFactory(record, adjustedPreviousIndex, currentIndex);\n view = viewContainerRef.createEmbeddedView(insertContext.templateRef, insertContext.context, insertContext.index);\n operation = 1 /* INSERTED */;\n }\n else if (currentIndex == null) {\n viewContainerRef.remove(adjustedPreviousIndex);\n operation = 3 /* REMOVED */;\n }\n else {\n view = viewContainerRef.get(adjustedPreviousIndex);\n viewContainerRef.move(view, currentIndex);\n operation = 2 /* MOVED */;\n }\n if (itemViewChanged) {\n itemViewChanged({\n context: view?.context,\n operation,\n record,\n });\n }\n });\n }\n detach() { }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A repeater that caches views when they are removed from a\n * {@link ViewContainerRef}. When new items are inserted into the container,\n * the repeater will reuse one of the cached views instead of creating a new\n * embedded view. Recycling cached views reduces the quantity of expensive DOM\n * inserts.\n *\n * @template T The type for the embedded view's $implicit property.\n * @template R The type for the item in each IterableDiffer change record.\n * @template C The type for the context passed to each embedded view.\n */\nclass _RecycleViewRepeaterStrategy {\n constructor() {\n /**\n * The size of the cache used to store unused views.\n * Setting the cache size to `0` will disable caching. Defaults to 20 views.\n */\n this.viewCacheSize = 20;\n /**\n * View cache that stores embedded view instances that have been previously stamped out,\n * but don't are not currently rendered. The view repeater will reuse these views rather than\n * creating brand new ones.\n *\n * TODO(michaeljamesparsons) Investigate whether using a linked list would improve performance.\n */\n this._viewCache = [];\n }\n /** Apply changes to the DOM. */\n applyChanges(changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {\n // Rearrange the views to put them in the right location.\n changes.forEachOperation((record, adjustedPreviousIndex, currentIndex) => {\n let view;\n let operation;\n if (record.previousIndex == null) {\n // Item added.\n const viewArgsFactory = () => itemContextFactory(record, adjustedPreviousIndex, currentIndex);\n view = this._insertView(viewArgsFactory, currentIndex, viewContainerRef, itemValueResolver(record));\n operation = view ? 1 /* INSERTED */ : 0 /* REPLACED */;\n }\n else if (currentIndex == null) {\n // Item removed.\n this._detachAndCacheView(adjustedPreviousIndex, viewContainerRef);\n operation = 3 /* REMOVED */;\n }\n else {\n // Item moved.\n view = this._moveView(adjustedPreviousIndex, currentIndex, viewContainerRef, itemValueResolver(record));\n operation = 2 /* MOVED */;\n }\n if (itemViewChanged) {\n itemViewChanged({\n context: view?.context,\n operation,\n record,\n });\n }\n });\n }\n detach() {\n for (const view of this._viewCache) {\n view.destroy();\n }\n this._viewCache = [];\n }\n /**\n * Inserts a view for a new item, either from the cache or by creating a new\n * one. Returns `undefined` if the item was inserted into a cached view.\n */\n _insertView(viewArgsFactory, currentIndex, viewContainerRef, value) {\n const cachedView = this._insertViewFromCache(currentIndex, viewContainerRef);\n if (cachedView) {\n cachedView.context.$implicit = value;\n return undefined;\n }\n const viewArgs = viewArgsFactory();\n return viewContainerRef.createEmbeddedView(viewArgs.templateRef, viewArgs.context, viewArgs.index);\n }\n /** Detaches the view at the given index and inserts into the view cache. */\n _detachAndCacheView(index, viewContainerRef) {\n const detachedView = viewContainerRef.detach(index);\n this._maybeCacheView(detachedView, viewContainerRef);\n }\n /** Moves view at the previous index to the current index. */\n _moveView(adjustedPreviousIndex, currentIndex, viewContainerRef, value) {\n const view = viewContainerRef.get(adjustedPreviousIndex);\n viewContainerRef.move(view, currentIndex);\n view.context.$implicit = value;\n return view;\n }\n /**\n * Cache the given detached view. If the cache is full, the view will be\n * destroyed.\n */\n _maybeCacheView(view, viewContainerRef) {\n if (this._viewCache.length < this.viewCacheSize) {\n this._viewCache.push(view);\n }\n else {\n const index = viewContainerRef.indexOf(view);\n // The host component could remove views from the container outside of\n // the view repeater. It's unlikely this will occur, but just in case,\n // destroy the view on its own, otherwise destroy it through the\n // container to ensure that all the references are removed.\n if (index === -1) {\n view.destroy();\n }\n else {\n viewContainerRef.remove(index);\n }\n }\n }\n /** Inserts a recycled view from the cache at the given index. */\n _insertViewFromCache(index, viewContainerRef) {\n const cachedView = this._viewCache.pop();\n if (cachedView) {\n viewContainerRef.insert(cachedView, index);\n }\n return cachedView || null;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Class to be used to power selecting one or more options from a list.\n */\nclass SelectionModel {\n constructor(_multiple = false, initiallySelectedValues, _emitChanges = true) {\n this._multiple = _multiple;\n this._emitChanges = _emitChanges;\n /** Currently-selected values. */\n this._selection = new Set();\n /** Keeps track of the deselected options that haven't been emitted by the change event. */\n this._deselectedToEmit = [];\n /** Keeps track of the selected options that haven't been emitted by the change event. */\n this._selectedToEmit = [];\n /** Event emitted when the value has changed. */\n this.changed = new Subject();\n if (initiallySelectedValues && initiallySelectedValues.length) {\n if (_multiple) {\n initiallySelectedValues.forEach(value => this._markSelected(value));\n }\n else {\n this._markSelected(initiallySelectedValues[0]);\n }\n // Clear the array in order to avoid firing the change event for preselected values.\n this._selectedToEmit.length = 0;\n }\n }\n /** Selected values. */\n get selected() {\n if (!this._selected) {\n this._selected = Array.from(this._selection.values());\n }\n return this._selected;\n }\n /**\n * Selects a value or an array of values.\n */\n select(...values) {\n this._verifyValueAssignment(values);\n values.forEach(value => this._markSelected(value));\n this._emitChangeEvent();\n }\n /**\n * Deselects a value or an array of values.\n */\n deselect(...values) {\n this._verifyValueAssignment(values);\n values.forEach(value => this._unmarkSelected(value));\n this._emitChangeEvent();\n }\n /**\n * Toggles a value between selected and deselected.\n */\n toggle(value) {\n this.isSelected(value) ? this.deselect(value) : this.select(value);\n }\n /**\n * Clears all of the selected values.\n */\n clear() {\n this._unmarkAll();\n this._emitChangeEvent();\n }\n /**\n * Determines whether a value is selected.\n */\n isSelected(value) {\n return this._selection.has(value);\n }\n /**\n * Determines whether the model does not have a value.\n */\n isEmpty() {\n return this._selection.size === 0;\n }\n /**\n * Determines whether the model has a value.\n */\n hasValue() {\n return !this.isEmpty();\n }\n /**\n * Sorts the selected values based on a predicate function.\n */\n sort(predicate) {\n if (this._multiple && this.selected) {\n this._selected.sort(predicate);\n }\n }\n /**\n * Gets whether multiple values can be selected.\n */\n isMultipleSelection() {\n return this._multiple;\n }\n /** Emits a change event and clears the records of selected and deselected values. */\n _emitChangeEvent() {\n // Clear the selected values so they can be re-cached.\n this._selected = null;\n if (this._selectedToEmit.length || this._deselectedToEmit.length) {\n this.changed.next({\n source: this,\n added: this._selectedToEmit,\n removed: this._deselectedToEmit,\n });\n this._deselectedToEmit = [];\n this._selectedToEmit = [];\n }\n }\n /** Selects a value. */\n _markSelected(value) {\n if (!this.isSelected(value)) {\n if (!this._multiple) {\n this._unmarkAll();\n }\n this._selection.add(value);\n if (this._emitChanges) {\n this._selectedToEmit.push(value);\n }\n }\n }\n /** Deselects a value. */\n _unmarkSelected(value) {\n if (this.isSelected(value)) {\n this._selection.delete(value);\n if (this._emitChanges) {\n this._deselectedToEmit.push(value);\n }\n }\n }\n /** Clears out the selected values. */\n _unmarkAll() {\n if (!this.isEmpty()) {\n this._selection.forEach(value => this._unmarkSelected(value));\n }\n }\n /**\n * Verifies the value assignment and throws an error if the specified value array is\n * including multiple values while the selection model is not supporting multiple values.\n */\n _verifyValueAssignment(values) {\n if (values.length > 1 && !this._multiple && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw getMultipleValuesInSingleSelectionError();\n }\n }\n}\n/**\n * Returns an error that reports that multiple values are passed into a selection model\n * with a single value.\n * @docs-private\n */\nfunction getMultipleValuesInSingleSelectionError() {\n return Error('Cannot pass multiple values into SelectionModel with single-value mode.');\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Class to coordinate unique selection based on name.\n * Intended to be consumed as an Angular service.\n * This service is needed because native radio change events are only fired on the item currently\n * being selected, and we still need to uncheck the previous selection.\n *\n * This service does not *store* any IDs and names because they may change at any time, so it is\n * less error-prone if they are simply passed through when the events occur.\n */\nclass UniqueSelectionDispatcher {\n constructor() {\n this._listeners = [];\n }\n /**\n * Notify other items that selection for the given name has been set.\n * @param id ID of the item.\n * @param name Name of the item.\n */\n notify(id, name) {\n for (let listener of this._listeners) {\n listener(id, name);\n }\n }\n /**\n * Listen for future changes to item selection.\n * @return Function used to deregister listener\n */\n listen(listener) {\n this._listeners.push(listener);\n return () => {\n this._listeners = this._listeners.filter((registered) => {\n return listener !== registered;\n });\n };\n }\n ngOnDestroy() {\n this._listeners = [];\n }\n}\nUniqueSelectionDispatcher.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: UniqueSelectionDispatcher, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nUniqueSelectionDispatcher.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: UniqueSelectionDispatcher, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: UniqueSelectionDispatcher, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Injection token for {@link _ViewRepeater}. This token is for use by Angular Material only.\n * @docs-private\n */\nconst _VIEW_REPEATER_STRATEGY = new InjectionToken('_ViewRepeater');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ArrayDataSource, DataSource, SelectionModel, UniqueSelectionDispatcher, _DisposeViewRepeaterStrategy, _RecycleViewRepeaterStrategy, _VIEW_REPEATER_STRATEGY, getMultipleValuesInSingleSelectionError, isDataSource };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/ddf6274480e5dc6b0e08258638ae6fbb.json
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--- trip-planner-front/node_modules/.cache/babel-webpack/ddf6274480e5dc6b0e08258638ae6fbb.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/ddf6274480e5dc6b0e08258638ae6fbb.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import * as i0 from '@angular/core';\nimport { forwardRef, Component, Inject, Input, ContentChildren, EventEmitter, ChangeDetectionStrategy, ViewEncapsulation, ViewChild, Output, NgModule } from '@angular/core';\nimport * as i1 from '@angular/common';\nimport { CommonModule } from '@angular/common';\nimport * as i3 from 'primeng/tooltip';\nimport { TooltipModule } from 'primeng/tooltip';\nimport * as i2 from 'primeng/ripple';\nimport { RippleModule } from 'primeng/ripple';\nimport { PrimeTemplate, SharedModule } from 'primeng/api';\nimport { DomHandler } from 'primeng/dom';\n\nfunction TabPanel_div_0_ng_container_2_ng_container_1_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nfunction TabPanel_div_0_ng_container_2_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainerStart(0);\n i0.ɵɵtemplate(1, TabPanel_div_0_ng_container_2_ng_container_1_Template, 1, 0, \"ng-container\", 3);\n i0.ɵɵelementContainerEnd();\n }\n\n if (rf & 2) {\n const ctx_r1 = i0.ɵɵnextContext(2);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngTemplateOutlet\", ctx_r1.contentTemplate);\n }\n}\n\nfunction TabPanel_div_0_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementStart(0, \"div\", 1);\n i0.ɵɵprojection(1);\n i0.ɵɵtemplate(2, TabPanel_div_0_ng_container_2_Template, 2, 1, \"ng-container\", 2);\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const ctx_r0 = i0.ɵɵnextContext();\n i0.ɵɵproperty(\"hidden\", !ctx_r0.selected);\n i0.ɵɵattribute(\"id\", ctx_r0.id)(\"aria-hidden\", !ctx_r0.selected)(\"aria-labelledby\", ctx_r0.id + \"-label\");\n i0.ɵɵadvance(2);\n i0.ɵɵproperty(\"ngIf\", ctx_r0.contentTemplate && (ctx_r0.cache ? ctx_r0.loaded : ctx_r0.selected));\n }\n}\n\nconst _c0 = [\"*\"];\nconst _c1 = [\"content\"];\nconst _c2 = [\"navbar\"];\nconst _c3 = [\"prevBtn\"];\nconst _c4 = [\"nextBtn\"];\nconst _c5 = [\"inkbar\"];\n\nfunction TabView_button_2_Template(rf, ctx) {\n if (rf & 1) {\n const _r8 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"button\", 12, 13);\n i0.ɵɵlistener(\"click\", function TabView_button_2_Template_button_click_0_listener() {\n i0.ɵɵrestoreView(_r8);\n const ctx_r7 = i0.ɵɵnextContext();\n return ctx_r7.navBackward();\n });\n i0.ɵɵelement(2, \"span\", 14);\n i0.ɵɵelementEnd();\n }\n}\n\nfunction TabView_ng_template_7_li_0_ng_container_2_span_1_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelement(0, \"span\", 24);\n }\n\n if (rf & 2) {\n const tab_r9 = i0.ɵɵnextContext(3).$implicit;\n i0.ɵɵproperty(\"ngClass\", tab_r9.leftIcon);\n }\n}\n\nfunction TabView_ng_template_7_li_0_ng_container_2_span_4_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelement(0, \"span\", 25);\n }\n\n if (rf & 2) {\n const tab_r9 = i0.ɵɵnextContext(3).$implicit;\n i0.ɵɵproperty(\"ngClass\", tab_r9.rightIcon);\n }\n}\n\nfunction TabView_ng_template_7_li_0_ng_container_2_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainerStart(0);\n i0.ɵɵtemplate(1, TabView_ng_template_7_li_0_ng_container_2_span_1_Template, 1, 1, \"span\", 21);\n i0.ɵɵelementStart(2, \"span\", 22);\n i0.ɵɵtext(3);\n i0.ɵɵelementEnd();\n i0.ɵɵtemplate(4, TabView_ng_template_7_li_0_ng_container_2_span_4_Template, 1, 1, \"span\", 23);\n i0.ɵɵelementContainerEnd();\n }\n\n if (rf & 2) {\n const tab_r9 = i0.ɵɵnextContext(2).$implicit;\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", tab_r9.leftIcon);\n i0.ɵɵadvance(2);\n i0.ɵɵtextInterpolate(tab_r9.header);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", tab_r9.rightIcon);\n }\n}\n\nfunction TabView_ng_template_7_li_0_ng_container_3_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵelementContainer(0);\n }\n}\n\nfunction TabView_ng_template_7_li_0_span_4_Template(rf, ctx) {\n if (rf & 1) {\n const _r21 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"span\", 26);\n i0.ɵɵlistener(\"click\", function TabView_ng_template_7_li_0_span_4_Template_span_click_0_listener($event) {\n i0.ɵɵrestoreView(_r21);\n const tab_r9 = i0.ɵɵnextContext(2).$implicit;\n const ctx_r19 = i0.ɵɵnextContext();\n return ctx_r19.close($event, tab_r9);\n });\n i0.ɵɵelementEnd();\n }\n}\n\nconst _c6 = function (a0, a1) {\n return {\n \"p-highlight\": a0,\n \"p-disabled\": a1\n };\n};\n\nfunction TabView_ng_template_7_li_0_Template(rf, ctx) {\n if (rf & 1) {\n const _r24 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"li\", 16);\n i0.ɵɵelementStart(1, \"a\", 17);\n i0.ɵɵlistener(\"click\", function TabView_ng_template_7_li_0_Template_a_click_1_listener($event) {\n i0.ɵɵrestoreView(_r24);\n const tab_r9 = i0.ɵɵnextContext().$implicit;\n const ctx_r22 = i0.ɵɵnextContext();\n return ctx_r22.open($event, tab_r9);\n })(\"keydown.enter\", function TabView_ng_template_7_li_0_Template_a_keydown_enter_1_listener($event) {\n i0.ɵɵrestoreView(_r24);\n const tab_r9 = i0.ɵɵnextContext().$implicit;\n const ctx_r25 = i0.ɵɵnextContext();\n return ctx_r25.open($event, tab_r9);\n });\n i0.ɵɵtemplate(2, TabView_ng_template_7_li_0_ng_container_2_Template, 5, 3, \"ng-container\", 18);\n i0.ɵɵtemplate(3, TabView_ng_template_7_li_0_ng_container_3_Template, 1, 0, \"ng-container\", 19);\n i0.ɵɵtemplate(4, TabView_ng_template_7_li_0_span_4_Template, 1, 0, \"span\", 20);\n i0.ɵɵelementEnd();\n i0.ɵɵelementEnd();\n }\n\n if (rf & 2) {\n const tab_r9 = i0.ɵɵnextContext().$implicit;\n i0.ɵɵclassMap(tab_r9.headerStyleClass);\n i0.ɵɵproperty(\"ngClass\", i0.ɵɵpureFunction2(16, _c6, tab_r9.selected, tab_r9.disabled))(\"ngStyle\", tab_r9.headerStyle);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"pTooltip\", tab_r9.tooltip)(\"tooltipPosition\", tab_r9.tooltipPosition)(\"positionStyle\", tab_r9.tooltipPositionStyle)(\"tooltipStyleClass\", tab_r9.tooltipStyleClass);\n i0.ɵɵattribute(\"id\", tab_r9.id + \"-label\")(\"aria-selected\", tab_r9.selected)(\"aria-controls\", tab_r9.id)(\"aria-selected\", tab_r9.selected)(\"tabindex\", tab_r9.disabled ? null : \"0\");\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", !tab_r9.headerTemplate);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngTemplateOutlet\", tab_r9.headerTemplate);\n i0.ɵɵadvance(1);\n i0.ɵɵproperty(\"ngIf\", tab_r9.closable);\n }\n}\n\nfunction TabView_ng_template_7_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵtemplate(0, TabView_ng_template_7_li_0_Template, 5, 19, \"li\", 15);\n }\n\n if (rf & 2) {\n const tab_r9 = ctx.$implicit;\n i0.ɵɵproperty(\"ngIf\", !tab_r9.closed);\n }\n}\n\nfunction TabView_button_10_Template(rf, ctx) {\n if (rf & 1) {\n const _r30 = i0.ɵɵgetCurrentView();\n\n i0.ɵɵelementStart(0, \"button\", 27, 28);\n i0.ɵɵlistener(\"click\", function TabView_button_10_Template_button_click_0_listener() {\n i0.ɵɵrestoreView(_r30);\n const ctx_r29 = i0.ɵɵnextContext();\n return ctx_r29.navForward();\n });\n i0.ɵɵelement(2, \"span\", 29);\n i0.ɵɵelementEnd();\n }\n}\n\nconst _c7 = function (a1) {\n return {\n \"p-tabview p-component\": true,\n \"p-tabview-scrollable\": a1\n };\n};\n\nlet idx = 0;\n\nclass TabPanel {\n constructor(tabView, viewContainer, cd) {\n this.viewContainer = viewContainer;\n this.cd = cd;\n this.cache = true;\n this.tooltipPosition = 'top';\n this.tooltipPositionStyle = 'absolute';\n this.id = `p-tabpanel-${idx++}`;\n this.tabView = tabView;\n }\n\n ngAfterContentInit() {\n this.templates.forEach(item => {\n switch (item.getType()) {\n case 'header':\n this.headerTemplate = item.template;\n break;\n\n case 'content':\n this.contentTemplate = item.template;\n break;\n\n default:\n this.contentTemplate = item.template;\n break;\n }\n });\n }\n\n get selected() {\n return this._selected;\n }\n\n set selected(val) {\n this._selected = val;\n\n if (!this.loaded) {\n this.cd.detectChanges();\n }\n\n if (val) this.loaded = true;\n }\n\n get disabled() {\n return this._disabled;\n }\n\n set disabled(disabled) {\n this._disabled = disabled;\n this.tabView.cd.markForCheck();\n }\n\n get header() {\n return this._header;\n }\n\n set header(header) {\n this._header = header;\n this.tabView.cd.markForCheck();\n }\n\n get leftIcon() {\n return this._leftIcon;\n }\n\n set leftIcon(leftIcon) {\n this._leftIcon = leftIcon;\n this.tabView.cd.markForCheck();\n }\n\n get rightIcon() {\n return this._rightIcon;\n }\n\n set rightIcon(rightIcon) {\n this._rightIcon = rightIcon;\n this.tabView.cd.markForCheck();\n }\n\n ngOnDestroy() {\n this.view = null;\n }\n\n}\n\nTabPanel.ɵfac = function TabPanel_Factory(t) {\n return new (t || TabPanel)(i0.ɵɵdirectiveInject(forwardRef(() => TabView)), i0.ɵɵdirectiveInject(i0.ViewContainerRef), i0.ɵɵdirectiveInject(i0.ChangeDetectorRef));\n};\n\nTabPanel.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: TabPanel,\n selectors: [[\"p-tabPanel\"]],\n contentQueries: function TabPanel_ContentQueries(rf, ctx, dirIndex) {\n if (rf & 1) {\n i0.ɵɵcontentQuery(dirIndex, PrimeTemplate, 4);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.templates = _t);\n }\n },\n hostAttrs: [1, \"p-element\"],\n inputs: {\n closable: \"closable\",\n headerStyle: \"headerStyle\",\n headerStyleClass: \"headerStyleClass\",\n cache: \"cache\",\n tooltip: \"tooltip\",\n tooltipPosition: \"tooltipPosition\",\n tooltipPositionStyle: \"tooltipPositionStyle\",\n tooltipStyleClass: \"tooltipStyleClass\",\n selected: \"selected\",\n disabled: \"disabled\",\n header: \"header\",\n leftIcon: \"leftIcon\",\n rightIcon: \"rightIcon\"\n },\n ngContentSelectors: _c0,\n decls: 1,\n vars: 1,\n consts: [[\"class\", \"p-tabview-panel\", \"role\", \"tabpanel\", 3, \"hidden\", 4, \"ngIf\"], [\"role\", \"tabpanel\", 1, \"p-tabview-panel\", 3, \"hidden\"], [4, \"ngIf\"], [4, \"ngTemplateOutlet\"]],\n template: function TabPanel_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef();\n i0.ɵɵtemplate(0, TabPanel_div_0_Template, 3, 5, \"div\", 0);\n }\n\n if (rf & 2) {\n i0.ɵɵproperty(\"ngIf\", !ctx.closed);\n }\n },\n directives: [i1.NgIf, i1.NgTemplateOutlet],\n encapsulation: 2\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(TabPanel, [{\n type: Component,\n args: [{\n selector: 'p-tabPanel',\n template: `\n
\n `, changeDetection: ChangeDetectionStrategy.OnPush, encapsulation: ViewEncapsulation.None, host: {\n 'class': 'p-element'\n }, styles: [\".p-tabview-nav-container{position:relative}.p-tabview-scrollable .p-tabview-nav-container{overflow:hidden}.p-tabview-nav-content{overflow-x:auto;overflow-y:hidden;scroll-behavior:smooth;scrollbar-width:none;-ms-scroll-chaining:contain auto;overscroll-behavior:contain auto}.p-tabview-nav{display:flex;margin:0;padding:0;list-style-type:none;flex:1 1 auto}.p-tabview-nav-link{cursor:pointer;-webkit-user-select:none;-ms-user-select:none;user-select:none;display:flex;align-items:center;position:relative;text-decoration:none;overflow:hidden}.p-tabview-ink-bar{display:none;z-index:1}.p-tabview-nav-link:focus{z-index:1}.p-tabview-title{line-height:1;white-space:nowrap}.p-tabview-nav-btn{position:absolute;top:0;z-index:2;height:100%;display:flex;align-items:center;justify-content:center}.p-tabview-nav-prev{left:0}.p-tabview-nav-next{right:0}.p-tabview-nav-content::-webkit-scrollbar{display:none}.p-tabview-close{z-index:1}\\n\"] }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.ChangeDetectorRef }]; }, propDecorators: { orientation: [{\n type: Input\n }], style: [{\n type: Input\n }], styleClass: [{\n type: Input\n }], controlClose: [{\n type: Input\n }], scrollable: [{\n type: Input\n }], content: [{\n type: ViewChild,\n args: ['content']\n }], navbar: [{\n type: ViewChild,\n args: ['navbar']\n }], prevBtn: [{\n type: ViewChild,\n args: ['prevBtn']\n }], nextBtn: [{\n type: ViewChild,\n args: ['nextBtn']\n }], inkbar: [{\n type: ViewChild,\n args: ['inkbar']\n }], tabPanels: [{\n type: ContentChildren,\n args: [TabPanel]\n }], onChange: [{\n type: Output\n }], onClose: [{\n type: Output\n }], activeIndexChange: [{\n type: Output\n }], activeIndex: [{\n type: Input\n }] } });\nclass TabViewModule {\n}\nTabViewModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TabViewModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nTabViewModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TabViewModule, declarations: [TabView, TabPanel], imports: [CommonModule, SharedModule, TooltipModule, RippleModule], exports: [TabView, TabPanel, SharedModule] });\nTabViewModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TabViewModule, imports: [[CommonModule, SharedModule, TooltipModule, RippleModule], SharedModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.0\", ngImport: i0, type: TabViewModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [CommonModule, SharedModule, TooltipModule, RippleModule],\n exports: [TabView, TabPanel, SharedModule],\n declarations: [TabView, TabPanel]\n }]\n }] });\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { TabPanel, TabView, TabViewModule };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.cache/babel-webpack/e11eae4f53d59eef7706df861cec50eb.json
===================================================================
--- trip-planner-front/node_modules/.cache/babel-webpack/e11eae4f53d59eef7706df861cec50eb.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/.cache/babel-webpack/e11eae4f53d59eef7706df861cec50eb.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1 @@
+{"ast":null,"code":"import { coerceElement, coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';\nimport * as i0 from '@angular/core';\nimport { Injectable, EventEmitter, Directive, Output, Input, NgModule } from '@angular/core';\nimport { Observable, Subject } from 'rxjs';\nimport { debounceTime } from 'rxjs/operators';\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Factory that creates a new MutationObserver and allows us to stub it out in unit tests.\n * @docs-private\n */\n\nclass MutationObserverFactory {\n create(callback) {\n return typeof MutationObserver === 'undefined' ? null : new MutationObserver(callback);\n }\n\n}\n\nMutationObserverFactory.ɵfac = function MutationObserverFactory_Factory(t) {\n return new (t || MutationObserverFactory)();\n};\n\nMutationObserverFactory.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: MutationObserverFactory,\n factory: MutationObserverFactory.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MutationObserverFactory, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], null, null);\n})();\n/** An injectable service that allows watching elements for changes to their content. */\n\n\nclass ContentObserver {\n constructor(_mutationObserverFactory) {\n this._mutationObserverFactory = _mutationObserverFactory;\n /** Keeps track of the existing MutationObservers so they can be reused. */\n\n this._observedElements = new Map();\n }\n\n ngOnDestroy() {\n this._observedElements.forEach((_, element) => this._cleanupObserver(element));\n }\n\n observe(elementOrRef) {\n const element = coerceElement(elementOrRef);\n return new Observable(observer => {\n const stream = this._observeElement(element);\n\n const subscription = stream.subscribe(observer);\n return () => {\n subscription.unsubscribe();\n\n this._unobserveElement(element);\n };\n });\n }\n /**\n * Observes the given element by using the existing MutationObserver if available, or creating a\n * new one if not.\n */\n\n\n _observeElement(element) {\n if (!this._observedElements.has(element)) {\n const stream = new Subject();\n\n const observer = this._mutationObserverFactory.create(mutations => stream.next(mutations));\n\n if (observer) {\n observer.observe(element, {\n characterData: true,\n childList: true,\n subtree: true\n });\n }\n\n this._observedElements.set(element, {\n observer,\n stream,\n count: 1\n });\n } else {\n this._observedElements.get(element).count++;\n }\n\n return this._observedElements.get(element).stream;\n }\n /**\n * Un-observes the given element and cleans up the underlying MutationObserver if nobody else is\n * observing this element.\n */\n\n\n _unobserveElement(element) {\n if (this._observedElements.has(element)) {\n this._observedElements.get(element).count--;\n\n if (!this._observedElements.get(element).count) {\n this._cleanupObserver(element);\n }\n }\n }\n /** Clean up the underlying MutationObserver for the specified element. */\n\n\n _cleanupObserver(element) {\n if (this._observedElements.has(element)) {\n const {\n observer,\n stream\n } = this._observedElements.get(element);\n\n if (observer) {\n observer.disconnect();\n }\n\n stream.complete();\n\n this._observedElements.delete(element);\n }\n }\n\n}\n\nContentObserver.ɵfac = function ContentObserver_Factory(t) {\n return new (t || ContentObserver)(i0.ɵɵinject(MutationObserverFactory));\n};\n\nContentObserver.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: ContentObserver,\n factory: ContentObserver.ɵfac,\n providedIn: 'root'\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ContentObserver, [{\n type: Injectable,\n args: [{\n providedIn: 'root'\n }]\n }], function () {\n return [{\n type: MutationObserverFactory\n }];\n }, null);\n})();\n/**\n * Directive that triggers a callback whenever the content of\n * its associated element has changed.\n */\n\n\nclass CdkObserveContent {\n constructor(_contentObserver, _elementRef, _ngZone) {\n this._contentObserver = _contentObserver;\n this._elementRef = _elementRef;\n this._ngZone = _ngZone;\n /** Event emitted for each change in the element's content. */\n\n this.event = new EventEmitter();\n this._disabled = false;\n this._currentSubscription = null;\n }\n /**\n * Whether observing content is disabled. This option can be used\n * to disconnect the underlying MutationObserver until it is needed.\n */\n\n\n get disabled() {\n return this._disabled;\n }\n\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n this._disabled ? this._unsubscribe() : this._subscribe();\n }\n /** Debounce interval for emitting the changes. */\n\n\n get debounce() {\n return this._debounce;\n }\n\n set debounce(value) {\n this._debounce = coerceNumberProperty(value);\n\n this._subscribe();\n }\n\n ngAfterContentInit() {\n if (!this._currentSubscription && !this.disabled) {\n this._subscribe();\n }\n }\n\n ngOnDestroy() {\n this._unsubscribe();\n }\n\n _subscribe() {\n this._unsubscribe();\n\n const stream = this._contentObserver.observe(this._elementRef); // TODO(mmalerba): We shouldn't be emitting on this @Output() outside the zone.\n // Consider brining it back inside the zone next time we're making breaking changes.\n // Bringing it back inside can cause things like infinite change detection loops and changed\n // after checked errors if people's code isn't handling it properly.\n\n\n this._ngZone.runOutsideAngular(() => {\n this._currentSubscription = (this.debounce ? stream.pipe(debounceTime(this.debounce)) : stream).subscribe(this.event);\n });\n }\n\n _unsubscribe() {\n this._currentSubscription?.unsubscribe();\n }\n\n}\n\nCdkObserveContent.ɵfac = function CdkObserveContent_Factory(t) {\n return new (t || CdkObserveContent)(i0.ɵɵdirectiveInject(ContentObserver), i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i0.NgZone));\n};\n\nCdkObserveContent.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: CdkObserveContent,\n selectors: [[\"\", \"cdkObserveContent\", \"\"]],\n inputs: {\n disabled: [\"cdkObserveContentDisabled\", \"disabled\"],\n debounce: \"debounce\"\n },\n outputs: {\n event: \"cdkObserveContent\"\n },\n exportAs: [\"cdkObserveContent\"]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(CdkObserveContent, [{\n type: Directive,\n args: [{\n selector: '[cdkObserveContent]',\n exportAs: 'cdkObserveContent'\n }]\n }], function () {\n return [{\n type: ContentObserver\n }, {\n type: i0.ElementRef\n }, {\n type: i0.NgZone\n }];\n }, {\n event: [{\n type: Output,\n args: ['cdkObserveContent']\n }],\n disabled: [{\n type: Input,\n args: ['cdkObserveContentDisabled']\n }],\n debounce: [{\n type: Input\n }]\n });\n})();\n\nclass ObserversModule {}\n\nObserversModule.ɵfac = function ObserversModule_Factory(t) {\n return new (t || ObserversModule)();\n};\n\nObserversModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: ObserversModule\n});\nObserversModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n providers: [MutationObserverFactory]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(ObserversModule, [{\n type: NgModule,\n args: [{\n exports: [CdkObserveContent],\n declarations: [CdkObserveContent],\n providers: [MutationObserverFactory]\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { CdkObserveContent, ContentObserver, MutationObserverFactory, ObserversModule 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this._observedElements.get(element).count--;\n if (!this._observedElements.get(element).count) {\n this._cleanupObserver(element);\n }\n }\n }\n /** Clean up the underlying MutationObserver for the specified element. */\n _cleanupObserver(element) {\n if (this._observedElements.has(element)) {\n const { observer, stream } = this._observedElements.get(element);\n if (observer) {\n observer.disconnect();\n }\n stream.complete();\n this._observedElements.delete(element);\n }\n }\n}\nContentObserver.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ContentObserver, deps: [{ token: MutationObserverFactory }], target: i0.ɵɵFactoryTarget.Injectable });\nContentObserver.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ContentObserver, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ContentObserver, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root' }]\n }], ctorParameters: function () { return [{ type: MutationObserverFactory }]; } });\n/**\n * Directive that triggers a callback whenever the content of\n * its associated element has changed.\n */\nclass CdkObserveContent {\n constructor(_contentObserver, _elementRef, _ngZone) {\n this._contentObserver = _contentObserver;\n this._elementRef = _elementRef;\n this._ngZone = _ngZone;\n /** Event emitted for each change in the element's content. */\n this.event = new EventEmitter();\n this._disabled = false;\n this._currentSubscription = null;\n }\n /**\n * Whether observing content is disabled. This option can be used\n * to disconnect the underlying MutationObserver until it is needed.\n */\n get disabled() {\n return this._disabled;\n }\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n this._disabled ? this._unsubscribe() : this._subscribe();\n }\n /** Debounce interval for emitting the changes. */\n get debounce() {\n return this._debounce;\n }\n set debounce(value) {\n this._debounce = coerceNumberProperty(value);\n this._subscribe();\n }\n ngAfterContentInit() {\n if (!this._currentSubscription && !this.disabled) {\n this._subscribe();\n }\n }\n ngOnDestroy() {\n this._unsubscribe();\n }\n _subscribe() {\n this._unsubscribe();\n const stream = this._contentObserver.observe(this._elementRef);\n // TODO(mmalerba): We shouldn't be emitting on this @Output() outside the zone.\n // Consider brining it back inside the zone next time we're making breaking changes.\n // Bringing it back inside can cause things like infinite change detection loops and changed\n // after checked errors if people's code isn't handling it properly.\n this._ngZone.runOutsideAngular(() => {\n this._currentSubscription = (this.debounce ? stream.pipe(debounceTime(this.debounce)) : stream).subscribe(this.event);\n });\n }\n _unsubscribe() {\n this._currentSubscription?.unsubscribe();\n }\n}\nCdkObserveContent.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkObserveContent, deps: [{ token: ContentObserver }, { token: i0.ElementRef }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Directive });\nCdkObserveContent.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.0.1\", type: CdkObserveContent, selector: \"[cdkObserveContent]\", inputs: { disabled: [\"cdkObserveContentDisabled\", \"disabled\"], debounce: \"debounce\" }, outputs: { event: \"cdkObserveContent\" }, exportAs: [\"cdkObserveContent\"], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: CdkObserveContent, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkObserveContent]',\n exportAs: 'cdkObserveContent',\n }]\n }], ctorParameters: function () { return [{ type: ContentObserver }, { type: i0.ElementRef }, { type: i0.NgZone }]; }, propDecorators: { event: [{\n type: Output,\n args: ['cdkObserveContent']\n }], disabled: [{\n type: Input,\n args: ['cdkObserveContentDisabled']\n }], debounce: [{\n type: Input\n }] } });\nclass ObserversModule {\n}\nObserversModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ObserversModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nObserversModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ObserversModule, declarations: [CdkObserveContent], exports: [CdkObserveContent] });\nObserversModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ObserversModule, providers: [MutationObserverFactory] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.0.1\", ngImport: i0, type: ObserversModule, decorators: [{\n type: NgModule,\n args: [{\n exports: [CdkObserveContent],\n declarations: [CdkObserveContent],\n providers: [MutationObserverFactory],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { CdkObserveContent, ContentObserver, MutationObserverFactory, ObserversModule };\n"]},"metadata":{},"sourceType":"module"}
Index: trip-planner-front/node_modules/.package-lock.json
===================================================================
--- trip-planner-front/node_modules/.package-lock.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/.package-lock.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -3447,12 +3447,4 @@
"dev": true
},
- "node_modules/bootstrap": {
- "version": "3.4.1",
- "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-3.4.1.tgz",
- "integrity": "sha512-yN5oZVmRCwe5aKwzRj6736nSmKDX7pLYwsXiCj/EYmo16hODaBiT4En5btW/jhBF/seV+XMx3aYwukYC3A49DA==",
- "engines": {
- "node": ">=6"
- }
- },
"node_modules/brace-expansion": {
"version": "1.1.11",
Index: trip-planner-front/node_modules/@ampproject/remapping/package.json
===================================================================
--- trip-planner-front/node_modules/@ampproject/remapping/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@ampproject/remapping/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,6 +1,69 @@
{
- "name": "@ampproject/remapping",
- "version": "1.0.1",
+ "_args": [
+ [
+ "@ampproject/remapping@1.0.1",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@ampproject/remapping@1.0.1",
+ "_id": "@ampproject/remapping@1.0.1",
+ "_inBundle": false,
+ "_integrity": "sha512-Ta9bMA3EtUHDaZJXqUoT5cn/EecwOp+SXpKJqxDbDuMbLvEMu6YTyDDuvTWeStODfdmXyfMo7LymQyPkN3BicA==",
+ "_location": "/@ampproject/remapping",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@ampproject/remapping@1.0.1",
+ "name": "@ampproject/remapping",
+ "escapedName": "@ampproject%2fremapping",
+ "scope": "@ampproject",
+ "rawSpec": "1.0.1",
+ "saveSpec": null,
+ "fetchSpec": "1.0.1"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/build-angular"
+ ],
+ "_resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-1.0.1.tgz",
+ "_spec": "1.0.1",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Justin Ridgewell",
+ "email": "jridgewell@google.com"
+ },
+ "bugs": {
+ "url": "https://github.com/ampproject/remapping/issues"
+ },
+ "dependencies": {
+ "@jridgewell/resolve-uri": "1.0.0",
+ "sourcemap-codec": "1.4.8"
+ },
"description": "Remap sequential sourcemaps through transformations to point at the original source code",
+ "devDependencies": {
+ "@rollup/plugin-node-resolve": "11.0.1",
+ "@rollup/plugin-typescript": "8.1.0",
+ "@types/jest": "26.0.19",
+ "@typescript-eslint/eslint-plugin": "4.10.0",
+ "@typescript-eslint/parser": "4.10.0",
+ "eslint": "7.15.0",
+ "eslint-config-prettier": "7.0.0",
+ "jest": "26.6.3",
+ "jest-config": "26.6.3",
+ "npm-run-all": "4.1.5",
+ "prettier": "2.2.1",
+ "rollup": "2.35.1",
+ "ts-jest": "26.4.4",
+ "tslib": "2.0.3",
+ "typescript": "4.1.3"
+ },
+ "engines": {
+ "node": ">=6.0.0"
+ },
+ "files": [
+ "dist"
+ ],
+ "homepage": "https://github.com/ampproject/remapping#readme",
"keywords": [
"source",
@@ -8,18 +71,11 @@
"remap"
],
+ "license": "Apache-2.0",
"main": "dist/remapping.umd.js",
"module": "dist/remapping.mjs",
- "typings": "dist/types/remapping.d.ts",
- "files": [
- "dist"
- ],
- "author": "Justin Ridgewell ",
+ "name": "@ampproject/remapping",
"repository": {
"type": "git",
"url": "git+https://github.com/ampproject/remapping.git"
- },
- "license": "Apache-2.0",
- "engines": {
- "node": ">=6.0.0"
},
"scripts": {
@@ -41,24 +97,5 @@
"test:watch": "jest --coverage --watch"
},
- "devDependencies": {
- "@rollup/plugin-node-resolve": "11.0.1",
- "@rollup/plugin-typescript": "8.1.0",
- "@types/jest": "26.0.19",
- "@typescript-eslint/eslint-plugin": "4.10.0",
- "@typescript-eslint/parser": "4.10.0",
- "eslint": "7.15.0",
- "eslint-config-prettier": "7.0.0",
- "jest": "26.6.3",
- "jest-config": "26.6.3",
- "npm-run-all": "4.1.5",
- "prettier": "2.2.1",
- "rollup": "2.35.1",
- "ts-jest": "26.4.4",
- "tslib": "2.0.3",
- "typescript": "4.1.3"
- },
- "dependencies": {
- "@jridgewell/resolve-uri": "1.0.0",
- "sourcemap-codec": "1.4.8"
- }
+ "typings": "dist/types/remapping.d.ts",
+ "version": "1.0.1"
}
Index: trip-planner-front/node_modules/@angular-devkit/architect/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/architect/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/architect/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,14 +1,54 @@
{
- "name": "@angular-devkit/architect",
- "version": "0.1202.9",
- "description": "Angular Build Facade",
- "experimental": true,
- "main": "src/index.js",
- "typings": "src/index.d.ts",
+ "_args": [
+ [
+ "@angular-devkit/architect@0.1202.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@angular-devkit/architect@0.1202.9",
+ "_id": "@angular-devkit/architect@0.1202.9",
+ "_inBundle": false,
+ "_integrity": "sha512-s2NcFqZjsdYoR0vhJWLCwykF6hG7F0C5fJJs49i6IJMKj5Ai58z7d2IFYvD8nA60paMvjFS14OQ+E/FEEEZ88Q==",
+ "_location": "/@angular-devkit/architect",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular-devkit/architect@0.1202.9",
+ "name": "@angular-devkit/architect",
+ "escapedName": "@angular-devkit%2farchitect",
+ "scope": "@angular-devkit",
+ "rawSpec": "0.1202.9",
+ "saveSpec": null,
+ "fetchSpec": "0.1202.9"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/build-angular",
+ "/@angular-devkit/build-webpack",
+ "/@angular/cli"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular-devkit/architect/-/architect-0.1202.9.tgz",
+ "_spec": "0.1202.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Angular Authors"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular-cli/issues"
+ },
+ "builders": "./builders/builders.json",
"dependencies": {
"@angular-devkit/core": "12.2.9",
"rxjs": "6.6.7"
},
- "builders": "./builders/builders.json",
+ "description": "Angular Build Facade",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0",
+ "npm": "^6.11.0 || ^7.5.6",
+ "yarn": ">= 1.13.0"
+ },
+ "experimental": true,
+ "homepage": "https://github.com/angular/angular-cli",
"keywords": [
"angular",
@@ -18,18 +58,12 @@
"Angular DevKit"
],
+ "license": "MIT",
+ "main": "src/index.js",
+ "name": "@angular-devkit/architect",
"repository": {
"type": "git",
- "url": "https://github.com/angular/angular-cli.git"
+ "url": "git+https://github.com/angular/angular-cli.git"
},
- "engines": {
- "node": "^12.14.1 || >=14.0.0",
- "npm": "^6.11.0 || ^7.5.6",
- "yarn": ">= 1.13.0"
- },
- "author": "Angular Authors",
- "license": "MIT",
- "bugs": {
- "url": "https://github.com/angular/angular-cli/issues"
- },
- "homepage": "https://github.com/angular/angular-cli"
+ "typings": "src/index.d.ts",
+ "version": "0.1202.9"
}
Index: trip-planner-front/node_modules/@angular-devkit/build-angular/node_modules/tslib/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/build-angular/node_modules/tslib/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/build-angular/node_modules/tslib/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,37 +1,68 @@
{
+ "_args": [
+ [
+ "tslib@2.3.0",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "tslib@2.3.0",
+ "_id": "tslib@2.3.0",
+ "_inBundle": false,
+ "_integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg==",
+ "_location": "/@angular-devkit/build-angular/tslib",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "tslib@2.3.0",
"name": "tslib",
- "author": "Microsoft Corp.",
- "homepage": "https://www.typescriptlang.org/",
- "version": "2.3.0",
- "license": "0BSD",
- "description": "Runtime library for TypeScript helper functions",
- "keywords": [
- "TypeScript",
- "Microsoft",
- "compiler",
- "language",
- "javascript",
- "tslib",
- "runtime"
- ],
- "bugs": {
- "url": "https://github.com/Microsoft/TypeScript/issues"
+ "escapedName": "tslib",
+ "rawSpec": "2.3.0",
+ "saveSpec": null,
+ "fetchSpec": "2.3.0"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/build-angular"
+ ],
+ "_resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+ "_spec": "2.3.0",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Microsoft Corp."
+ },
+ "bugs": {
+ "url": "https://github.com/Microsoft/TypeScript/issues"
+ },
+ "description": "Runtime library for TypeScript helper functions",
+ "exports": {
+ ".": {
+ "module": "./tslib.es6.js",
+ "import": "./modules/index.js",
+ "default": "./tslib.js"
},
- "repository": {
- "type": "git",
- "url": "https://github.com/Microsoft/tslib.git"
- },
- "main": "tslib.js",
- "module": "tslib.es6.js",
- "jsnext:main": "tslib.es6.js",
- "typings": "tslib.d.ts",
- "sideEffects": false,
- "exports": {
- ".": {
- "module": "./tslib.es6.js",
- "import": "./modules/index.js",
- "default": "./tslib.js"
- },
- "./": "./"
- }
+ "./": "./"
+ },
+ "homepage": "https://www.typescriptlang.org/",
+ "jsnext:main": "tslib.es6.js",
+ "keywords": [
+ "TypeScript",
+ "Microsoft",
+ "compiler",
+ "language",
+ "javascript",
+ "tslib",
+ "runtime"
+ ],
+ "license": "0BSD",
+ "main": "tslib.js",
+ "module": "tslib.es6.js",
+ "name": "tslib",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/Microsoft/tslib.git"
+ },
+ "sideEffects": false,
+ "typings": "tslib.d.ts",
+ "version": "2.3.0"
}
Index: trip-planner-front/node_modules/@angular-devkit/build-angular/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/build-angular/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/build-angular/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,8 +1,39 @@
{
- "name": "@angular-devkit/build-angular",
- "version": "12.2.9",
- "description": "Angular Webpack Build Facade",
- "main": "src/index.js",
- "typings": "src/index.d.ts",
+ "_args": [
+ [
+ "@angular-devkit/build-angular@12.2.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@angular-devkit/build-angular@12.2.9",
+ "_id": "@angular-devkit/build-angular@12.2.9",
+ "_inBundle": false,
+ "_integrity": "sha512-A8yddhGpUnrTcA4WCiUxwklFbfkNMfvlST5CT9VLVjz4MEwwOpdaNmIF39+NMr4XTgOBbP6Bq/t3ciIsB5+/Uw==",
+ "_location": "/@angular-devkit/build-angular",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular-devkit/build-angular@12.2.9",
+ "name": "@angular-devkit/build-angular",
+ "escapedName": "@angular-devkit%2fbuild-angular",
+ "scope": "@angular-devkit",
+ "rawSpec": "12.2.9",
+ "saveSpec": null,
+ "fetchSpec": "12.2.9"
+ },
+ "_requiredBy": [
+ "#DEV:/"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular-devkit/build-angular/-/build-angular-12.2.9.tgz",
+ "_spec": "12.2.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Angular Authors"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular-cli/issues"
+ },
"builders": "builders.json",
"dependencies": {
@@ -35,4 +66,5 @@
"css-loader": "6.2.0",
"css-minimizer-webpack-plugin": "3.0.2",
+ "esbuild": "0.13.4",
"esbuild-wasm": "0.13.4",
"find-cache-dir": "3.3.1",
@@ -77,4 +109,21 @@
"webpack-subresource-integrity": "1.5.2"
},
+ "description": "Angular Webpack Build Facade",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0",
+ "npm": "^6.11.0 || ^7.5.6",
+ "yarn": ">= 1.13.0"
+ },
+ "homepage": "https://github.com/angular/angular-cli",
+ "keywords": [
+ "angular",
+ "Angular CLI",
+ "devkit",
+ "sdk",
+ "Angular DevKit"
+ ],
+ "license": "MIT",
+ "main": "src/index.js",
+ "name": "@angular-devkit/build-angular",
"optionalDependencies": {
"esbuild": "0.13.4"
@@ -114,25 +163,9 @@
}
},
- "keywords": [
- "angular",
- "Angular CLI",
- "devkit",
- "sdk",
- "Angular DevKit"
- ],
"repository": {
"type": "git",
- "url": "https://github.com/angular/angular-cli.git"
+ "url": "git+https://github.com/angular/angular-cli.git"
},
- "engines": {
- "node": "^12.14.1 || >=14.0.0",
- "npm": "^6.11.0 || ^7.5.6",
- "yarn": ">= 1.13.0"
- },
- "author": "Angular Authors",
- "license": "MIT",
- "bugs": {
- "url": "https://github.com/angular/angular-cli/issues"
- },
- "homepage": "https://github.com/angular/angular-cli"
+ "typings": "src/index.d.ts",
+ "version": "12.2.9"
}
Index: trip-planner-front/node_modules/@angular-devkit/build-optimizer/node_modules/tslib/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/build-optimizer/node_modules/tslib/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/build-optimizer/node_modules/tslib/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,37 +1,68 @@
{
+ "_args": [
+ [
+ "tslib@2.3.0",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "tslib@2.3.0",
+ "_id": "tslib@2.3.0",
+ "_inBundle": false,
+ "_integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg==",
+ "_location": "/@angular-devkit/build-optimizer/tslib",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "tslib@2.3.0",
"name": "tslib",
- "author": "Microsoft Corp.",
- "homepage": "https://www.typescriptlang.org/",
- "version": "2.3.0",
- "license": "0BSD",
- "description": "Runtime library for TypeScript helper functions",
- "keywords": [
- "TypeScript",
- "Microsoft",
- "compiler",
- "language",
- "javascript",
- "tslib",
- "runtime"
- ],
- "bugs": {
- "url": "https://github.com/Microsoft/TypeScript/issues"
+ "escapedName": "tslib",
+ "rawSpec": "2.3.0",
+ "saveSpec": null,
+ "fetchSpec": "2.3.0"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/build-optimizer"
+ ],
+ "_resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+ "_spec": "2.3.0",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Microsoft Corp."
+ },
+ "bugs": {
+ "url": "https://github.com/Microsoft/TypeScript/issues"
+ },
+ "description": "Runtime library for TypeScript helper functions",
+ "exports": {
+ ".": {
+ "module": "./tslib.es6.js",
+ "import": "./modules/index.js",
+ "default": "./tslib.js"
},
- "repository": {
- "type": "git",
- "url": "https://github.com/Microsoft/tslib.git"
- },
- "main": "tslib.js",
- "module": "tslib.es6.js",
- "jsnext:main": "tslib.es6.js",
- "typings": "tslib.d.ts",
- "sideEffects": false,
- "exports": {
- ".": {
- "module": "./tslib.es6.js",
- "import": "./modules/index.js",
- "default": "./tslib.js"
- },
- "./": "./"
- }
+ "./": "./"
+ },
+ "homepage": "https://www.typescriptlang.org/",
+ "jsnext:main": "tslib.es6.js",
+ "keywords": [
+ "TypeScript",
+ "Microsoft",
+ "compiler",
+ "language",
+ "javascript",
+ "tslib",
+ "runtime"
+ ],
+ "license": "0BSD",
+ "main": "tslib.js",
+ "module": "tslib.es6.js",
+ "name": "tslib",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/Microsoft/tslib.git"
+ },
+ "sideEffects": false,
+ "typings": "tslib.d.ts",
+ "version": "2.3.0"
}
Index: trip-planner-front/node_modules/@angular-devkit/build-optimizer/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/build-optimizer/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/build-optimizer/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,11 +1,41 @@
{
- "name": "@angular-devkit/build-optimizer",
- "version": "0.1202.9",
- "description": "Angular Build Optimizer",
- "experimental": true,
- "main": "src/index.js",
- "typings": "src/index.d.ts",
+ "_args": [
+ [
+ "@angular-devkit/build-optimizer@0.1202.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@angular-devkit/build-optimizer@0.1202.9",
+ "_id": "@angular-devkit/build-optimizer@0.1202.9",
+ "_inBundle": false,
+ "_integrity": "sha512-yDR7f2fRWzJdqa7U0eIYu5fCRIae3tcSsYE18UPiV5ypGK3talMIpZ1ibkklr9Nm9SAB6Js1/EdVBGB5jo3R9A==",
+ "_location": "/@angular-devkit/build-optimizer",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular-devkit/build-optimizer@0.1202.9",
+ "name": "@angular-devkit/build-optimizer",
+ "escapedName": "@angular-devkit%2fbuild-optimizer",
+ "scope": "@angular-devkit",
+ "rawSpec": "0.1202.9",
+ "saveSpec": null,
+ "fetchSpec": "0.1202.9"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/build-angular"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular-devkit/build-optimizer/-/build-optimizer-0.1202.9.tgz",
+ "_spec": "0.1202.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Angular Authors"
+ },
"bin": {
- "build-optimizer": "./src/build-optimizer/cli.js"
+ "build-optimizer": "src/build-optimizer/cli.js"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular-cli/issues"
},
"dependencies": {
@@ -14,4 +44,22 @@
"typescript": "4.3.5"
},
+ "description": "Angular Build Optimizer",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0",
+ "npm": "^6.11.0 || ^7.5.6",
+ "yarn": ">= 1.13.0"
+ },
+ "experimental": true,
+ "homepage": "https://github.com/angular/angular-cli",
+ "keywords": [
+ "angular",
+ "Angular CLI",
+ "devkit",
+ "sdk",
+ "Angular DevKit"
+ ],
+ "license": "MIT",
+ "main": "src/index.js",
+ "name": "@angular-devkit/build-optimizer",
"peerDependencies": {
"webpack": "^5.30.0"
@@ -22,25 +70,9 @@
}
},
- "keywords": [
- "angular",
- "Angular CLI",
- "devkit",
- "sdk",
- "Angular DevKit"
- ],
"repository": {
"type": "git",
- "url": "https://github.com/angular/angular-cli.git"
+ "url": "git+https://github.com/angular/angular-cli.git"
},
- "engines": {
- "node": "^12.14.1 || >=14.0.0",
- "npm": "^6.11.0 || ^7.5.6",
- "yarn": ">= 1.13.0"
- },
- "author": "Angular Authors",
- "license": "MIT",
- "bugs": {
- "url": "https://github.com/angular/angular-cli/issues"
- },
- "homepage": "https://github.com/angular/angular-cli"
+ "typings": "src/index.d.ts",
+ "version": "0.1202.9"
}
Index: trip-planner-front/node_modules/@angular-devkit/build-webpack/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/build-webpack/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/build-webpack/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,9 +1,39 @@
{
- "name": "@angular-devkit/build-webpack",
- "version": "0.1202.9",
- "description": "Webpack Builder for Architect",
- "experimental": true,
- "main": "src/index.js",
- "typings": "src/index.d.ts",
+ "_args": [
+ [
+ "@angular-devkit/build-webpack@0.1202.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@angular-devkit/build-webpack@0.1202.9",
+ "_id": "@angular-devkit/build-webpack@0.1202.9",
+ "_inBundle": false,
+ "_integrity": "sha512-UKVxFTRSyDpQDxM1yk1OJiynhbryrbsy+WgZ/gFcnZcrRGtrpAWOq+uMXfq05zET6CNqpOKBnxy9LSHAwXR5Ig==",
+ "_location": "/@angular-devkit/build-webpack",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular-devkit/build-webpack@0.1202.9",
+ "name": "@angular-devkit/build-webpack",
+ "escapedName": "@angular-devkit%2fbuild-webpack",
+ "scope": "@angular-devkit",
+ "rawSpec": "0.1202.9",
+ "saveSpec": null,
+ "fetchSpec": "0.1202.9"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/build-angular"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular-devkit/build-webpack/-/build-webpack-0.1202.9.tgz",
+ "_spec": "0.1202.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Angular Authors"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular-cli/issues"
+ },
"builders": "builders.json",
"dependencies": {
@@ -11,8 +41,12 @@
"rxjs": "6.6.7"
},
- "peerDependencies": {
- "webpack": "^5.30.0",
- "webpack-dev-server": "^3.1.4"
+ "description": "Webpack Builder for Architect",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0",
+ "npm": "^6.11.0 || ^7.5.6",
+ "yarn": ">= 1.13.0"
},
+ "experimental": true,
+ "homepage": "https://github.com/angular/angular-cli",
"keywords": [
"angular",
@@ -22,18 +56,16 @@
"Angular DevKit"
],
+ "license": "MIT",
+ "main": "src/index.js",
+ "name": "@angular-devkit/build-webpack",
+ "peerDependencies": {
+ "webpack": "^5.30.0",
+ "webpack-dev-server": "^3.1.4"
+ },
"repository": {
"type": "git",
- "url": "https://github.com/angular/angular-cli.git"
+ "url": "git+https://github.com/angular/angular-cli.git"
},
- "engines": {
- "node": "^12.14.1 || >=14.0.0",
- "npm": "^6.11.0 || ^7.5.6",
- "yarn": ">= 1.13.0"
- },
- "author": "Angular Authors",
- "license": "MIT",
- "bugs": {
- "url": "https://github.com/angular/angular-cli/issues"
- },
- "homepage": "https://github.com/angular/angular-cli"
+ "typings": "src/index.d.ts",
+ "version": "0.1202.9"
}
Index: trip-planner-front/node_modules/@angular-devkit/core/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/core/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/core/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,8 +1,58 @@
{
- "name": "@angular-devkit/core",
- "version": "12.2.9",
+ "_args": [
+ [
+ "@angular-devkit/core@12.2.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@angular-devkit/core@12.2.9",
+ "_id": "@angular-devkit/core@12.2.9",
+ "_inBundle": false,
+ "_integrity": "sha512-iPHQiga08bbryiVq3QYzwpuq9sNb8CB/MVy65MHJ0fuW1z6RYDeUh1EziitBBUT2d81KWKPO1wQ2DuUoxOg4mg==",
+ "_location": "/@angular-devkit/core",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular-devkit/core@12.2.9",
+ "name": "@angular-devkit/core",
+ "escapedName": "@angular-devkit%2fcore",
+ "scope": "@angular-devkit",
+ "rawSpec": "12.2.9",
+ "saveSpec": null,
+ "fetchSpec": "12.2.9"
+ },
+ "_requiredBy": [
+ "/@angular-devkit/architect",
+ "/@angular-devkit/build-angular",
+ "/@angular-devkit/schematics",
+ "/@angular/cli",
+ "/@schematics/angular"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular-devkit/core/-/core-12.2.9.tgz",
+ "_spec": "12.2.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Angular Authors"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular-cli/issues"
+ },
+ "dependencies": {
+ "ajv": "8.6.2",
+ "ajv-formats": "2.1.0",
+ "fast-json-stable-stringify": "2.1.0",
+ "magic-string": "0.25.7",
+ "rxjs": "6.6.7",
+ "source-map": "0.7.3"
+ },
"description": "Angular DevKit - Core Utility Library",
- "main": "src/index.js",
- "typings": "src/index.d.ts",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0",
+ "npm": "^6.11.0 || ^7.5.6",
+ "yarn": ">= 1.13.0"
+ },
+ "homepage": "https://github.com/angular/angular-cli",
"keywords": [
"angular",
@@ -13,26 +63,12 @@
"core"
],
- "dependencies": {
- "ajv": "8.6.2",
- "ajv-formats": "2.1.0",
- "fast-json-stable-stringify": "2.1.0",
- "magic-string": "0.25.7",
- "rxjs": "6.6.7",
- "source-map": "0.7.3"
- },
+ "license": "MIT",
+ "main": "src/index.js",
+ "name": "@angular-devkit/core",
"repository": {
"type": "git",
- "url": "https://github.com/angular/angular-cli.git"
+ "url": "git+https://github.com/angular/angular-cli.git"
},
- "engines": {
- "node": "^12.14.1 || >=14.0.0",
- "npm": "^6.11.0 || ^7.5.6",
- "yarn": ">= 1.13.0"
- },
- "author": "Angular Authors",
- "license": "MIT",
- "bugs": {
- "url": "https://github.com/angular/angular-cli/issues"
- },
- "homepage": "https://github.com/angular/angular-cli"
+ "typings": "src/index.d.ts",
+ "version": "12.2.9"
}
Index: trip-planner-front/node_modules/@angular-devkit/schematics/package.json
===================================================================
--- trip-planner-front/node_modules/@angular-devkit/schematics/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular-devkit/schematics/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,8 +1,52 @@
{
- "name": "@angular-devkit/schematics",
- "version": "12.2.9",
+ "_args": [
+ [
+ "@angular-devkit/schematics@12.2.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_development": true,
+ "_from": "@angular-devkit/schematics@12.2.9",
+ "_id": "@angular-devkit/schematics@12.2.9",
+ "_inBundle": false,
+ "_integrity": "sha512-OcMDCdlIxiir8XntrNXdXEPi9/8BRx54oYZeRosr0sJZlz4pPzsHs36t5uX2DURYYMkNNMaBnf2luUIC+77ZsA==",
+ "_location": "/@angular-devkit/schematics",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular-devkit/schematics@12.2.9",
+ "name": "@angular-devkit/schematics",
+ "escapedName": "@angular-devkit%2fschematics",
+ "scope": "@angular-devkit",
+ "rawSpec": "12.2.9",
+ "saveSpec": null,
+ "fetchSpec": "12.2.9"
+ },
+ "_requiredBy": [
+ "/@angular/cli",
+ "/@schematics/angular"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular-devkit/schematics/-/schematics-12.2.9.tgz",
+ "_spec": "12.2.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "Angular Authors"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular-cli/issues"
+ },
+ "dependencies": {
+ "@angular-devkit/core": "12.2.9",
+ "ora": "5.4.1",
+ "rxjs": "6.6.7"
+ },
"description": "Angular Schematics - Library",
- "main": "src/index.js",
- "typings": "src/index.d.ts",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0",
+ "npm": "^6.11.0 || ^7.5.6",
+ "yarn": ">= 1.13.0"
+ },
+ "homepage": "https://github.com/angular/angular-cli",
"keywords": [
"angular",
@@ -18,23 +62,12 @@
"schematics"
],
- "dependencies": {
- "@angular-devkit/core": "12.2.9",
- "ora": "5.4.1",
- "rxjs": "6.6.7"
- },
+ "license": "MIT",
+ "main": "src/index.js",
+ "name": "@angular-devkit/schematics",
"repository": {
"type": "git",
- "url": "https://github.com/angular/angular-cli.git"
+ "url": "git+https://github.com/angular/angular-cli.git"
},
- "engines": {
- "node": "^12.14.1 || >=14.0.0",
- "npm": "^6.11.0 || ^7.5.6",
- "yarn": ">= 1.13.0"
- },
- "author": "Angular Authors",
- "license": "MIT",
- "bugs": {
- "url": "https://github.com/angular/angular-cli/issues"
- },
- "homepage": "https://github.com/angular/angular-cli"
+ "typings": "src/index.d.ts",
+ "version": "12.2.9"
}
Index: trip-planner-front/node_modules/@angular/animations/package.json
===================================================================
--- trip-planner-front/node_modules/@angular/animations/package.json (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/animations/package.json (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -1,22 +1,56 @@
{
- "name": "@angular/animations",
- "version": "12.2.9",
- "description": "Angular - animations integration with web-animations",
- "author": "angular",
- "license": "MIT",
- "engines": {
- "node": "^12.14.1 || >=14.0.0"
+ "_args": [
+ [
+ "@angular/animations@12.2.9",
+ "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front"
+ ]
+ ],
+ "_from": "@angular/animations@12.2.9",
+ "_id": "@angular/animations@12.2.9",
+ "_inBundle": false,
+ "_integrity": "sha512-duGhAuXw4OtgnWi5KqS/qnnWDtvG3jbPjjalTMhFPHHdUl7p3pJ2sM9WX7Fqp3QPnxBnQ+vdgQYbfUQ7c/g2cA==",
+ "_location": "/@angular/animations",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "@angular/animations@12.2.9",
+ "name": "@angular/animations",
+ "escapedName": "@angular%2fanimations",
+ "scope": "@angular",
+ "rawSpec": "12.2.9",
+ "saveSpec": null,
+ "fetchSpec": "12.2.9"
+ },
+ "_requiredBy": [
+ "/"
+ ],
+ "_resolved": "https://registry.npmjs.org/@angular/animations/-/animations-12.2.9.tgz",
+ "_spec": "12.2.9",
+ "_where": "C:\\Users\\DELL\\Desktop\\bachelor-thesis\\trip-planner-front",
+ "author": {
+ "name": "angular"
+ },
+ "bugs": {
+ "url": "https://github.com/angular/angular/issues"
},
"dependencies": {
"tslib": "^2.2.0"
},
- "peerDependencies": {
- "@angular/core": "12.2.9"
+ "description": "Angular - animations integration with web-animations",
+ "engines": {
+ "node": "^12.14.1 || >=14.0.0"
},
- "repository": {
- "type": "git",
- "url": "https://github.com/angular/angular.git",
- "directory": "packages/animations"
- },
+ "es2015_ivy_ngcc": "__ivy_ngcc__/fesm2015/animations.js",
+ "es2015": "./fesm2015/animations.js",
+ "esm2015": "./esm2015/animations.js",
+ "fesm2015_ivy_ngcc": "__ivy_ngcc__/fesm2015/animations.js",
+ "fesm2015": "./fesm2015/animations.js",
+ "homepage": "https://github.com/angular/angular#readme",
+ "license": "MIT",
+ "main": "./bundles/animations.umd.js",
+ "module_ivy_ngcc": "__ivy_ngcc__/fesm2015/animations.js",
+ "module": "./fesm2015/animations.js",
+ "name": "@angular/animations",
"ng-update": {
"packageGroup": [
@@ -39,14 +73,15 @@
]
},
+ "peerDependencies": {
+ "@angular/core": "12.2.9"
+ },
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/angular/angular.git",
+ "directory": "packages/animations"
+ },
"sideEffects": false,
- "main": "./bundles/animations.umd.js",
- "fesm2015_ivy_ngcc": "__ivy_ngcc__/fesm2015/animations.js",
- "fesm2015": "./fesm2015/animations.js",
- "esm2015": "./esm2015/animations.js",
"typings": "./animations.d.ts",
- "module_ivy_ngcc": "__ivy_ngcc__/fesm2015/animations.js",
- "module": "./fesm2015/animations.js",
- "es2015_ivy_ngcc": "__ivy_ngcc__/fesm2015/animations.js",
- "es2015": "./fesm2015/animations.js",
+ "version": "12.2.9",
"__processed_by_ivy_ngcc__": {
"es2015": "12.2.9",
Index: ip-planner-front/node_modules/@angular/cdk/__ivy_ngcc__/fesm2015/drag-drop.js
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/__ivy_ngcc__/fesm2015/drag-drop.js (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,3801 +1,0 @@
-import * as i0 from '@angular/core';
-import { Injectable, NgZone, Inject, InjectionToken, Directive, Input, EventEmitter, ElementRef, ChangeDetectorRef, Optional, SkipSelf, Output, TemplateRef, ViewContainerRef, Self, ContentChildren, ContentChild, NgModule } from '@angular/core';
-import * as i1 from '@angular/common';
-import { DOCUMENT } from '@angular/common';
-import * as i2 from '@angular/cdk/scrolling';
-import { ViewportRuler, ScrollDispatcher, CdkScrollableModule } from '@angular/cdk/scrolling';
-import { _getEventTarget, normalizePassiveListenerOptions, _getShadowRoot } from '@angular/cdk/platform';
-import { coerceBooleanProperty, coerceElement, coerceArray, coerceNumberProperty } from '@angular/cdk/coercion';
-import { isFakeTouchstartFromScreenReader, isFakeMousedownFromScreenReader } from '@angular/cdk/a11y';
-import { Subject, Subscription, interval, animationFrameScheduler, Observable, merge } from 'rxjs';
-import { takeUntil, startWith, map, take, tap, switchMap } from 'rxjs/operators';
-import { Directionality } from '@angular/cdk/bidi';
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Shallow-extends a stylesheet object with another stylesheet-like object.
- * Note that the keys in `source` have to be dash-cased.
- * @docs-private
- */
-import * as ɵngcc0 from '@angular/core';
-import * as ɵngcc1 from '@angular/cdk/scrolling';
-import * as ɵngcc2 from '@angular/cdk/bidi';
-function extendStyles(dest, source, importantProperties) {
- for (let key in source) {
- if (source.hasOwnProperty(key)) {
- const value = source[key];
- if (value) {
- dest.setProperty(key, value, (importantProperties === null || importantProperties === void 0 ? void 0 : importantProperties.has(key)) ? 'important' : '');
- }
- else {
- dest.removeProperty(key);
- }
- }
- }
- return dest;
-}
-/**
- * Toggles whether the native drag interactions should be enabled for an element.
- * @param element Element on which to toggle the drag interactions.
- * @param enable Whether the drag interactions should be enabled.
- * @docs-private
- */
-function toggleNativeDragInteractions(element, enable) {
- const userSelect = enable ? '' : 'none';
- extendStyles(element.style, {
- 'touch-action': enable ? '' : 'none',
- '-webkit-user-drag': enable ? '' : 'none',
- '-webkit-tap-highlight-color': enable ? '' : 'transparent',
- 'user-select': userSelect,
- '-ms-user-select': userSelect,
- '-webkit-user-select': userSelect,
- '-moz-user-select': userSelect
- });
-}
-/**
- * Toggles whether an element is visible while preserving its dimensions.
- * @param element Element whose visibility to toggle
- * @param enable Whether the element should be visible.
- * @param importantProperties Properties to be set as `!important`.
- * @docs-private
- */
-function toggleVisibility(element, enable, importantProperties) {
- extendStyles(element.style, {
- position: enable ? '' : 'fixed',
- top: enable ? '' : '0',
- opacity: enable ? '' : '0',
- left: enable ? '' : '-999em'
- }, importantProperties);
-}
-/**
- * Combines a transform string with an optional other transform
- * that exited before the base transform was applied.
- */
-function combineTransforms(transform, initialTransform) {
- return initialTransform && initialTransform != 'none' ?
- (transform + ' ' + initialTransform) :
- transform;
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Parses a CSS time value to milliseconds. */
-function parseCssTimeUnitsToMs(value) {
- // Some browsers will return it in seconds, whereas others will return milliseconds.
- const multiplier = value.toLowerCase().indexOf('ms') > -1 ? 1 : 1000;
- return parseFloat(value) * multiplier;
-}
-/** Gets the transform transition duration, including the delay, of an element in milliseconds. */
-function getTransformTransitionDurationInMs(element) {
- const computedStyle = getComputedStyle(element);
- const transitionedProperties = parseCssPropertyValue(computedStyle, 'transition-property');
- const property = transitionedProperties.find(prop => prop === 'transform' || prop === 'all');
- // If there's no transition for `all` or `transform`, we shouldn't do anything.
- if (!property) {
- return 0;
- }
- // Get the index of the property that we're interested in and match
- // it up to the same index in `transition-delay` and `transition-duration`.
- const propertyIndex = transitionedProperties.indexOf(property);
- const rawDurations = parseCssPropertyValue(computedStyle, 'transition-duration');
- const rawDelays = parseCssPropertyValue(computedStyle, 'transition-delay');
- return parseCssTimeUnitsToMs(rawDurations[propertyIndex]) +
- parseCssTimeUnitsToMs(rawDelays[propertyIndex]);
-}
-/** Parses out multiple values from a computed style into an array. */
-function parseCssPropertyValue(computedStyle, name) {
- const value = computedStyle.getPropertyValue(name);
- return value.split(',').map(part => part.trim());
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Gets a mutable version of an element's bounding `ClientRect`. */
-function getMutableClientRect(element) {
- const clientRect = element.getBoundingClientRect();
- // We need to clone the `clientRect` here, because all the values on it are readonly
- // and we need to be able to update them. Also we can't use a spread here, because
- // the values on a `ClientRect` aren't own properties. See:
- // https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect#Notes
- return {
- top: clientRect.top,
- right: clientRect.right,
- bottom: clientRect.bottom,
- left: clientRect.left,
- width: clientRect.width,
- height: clientRect.height
- };
-}
-/**
- * Checks whether some coordinates are within a `ClientRect`.
- * @param clientRect ClientRect that is being checked.
- * @param x Coordinates along the X axis.
- * @param y Coordinates along the Y axis.
- */
-function isInsideClientRect(clientRect, x, y) {
- const { top, bottom, left, right } = clientRect;
- return y >= top && y <= bottom && x >= left && x <= right;
-}
-/**
- * Updates the top/left positions of a `ClientRect`, as well as their bottom/right counterparts.
- * @param clientRect `ClientRect` that should be updated.
- * @param top Amount to add to the `top` position.
- * @param left Amount to add to the `left` position.
- */
-function adjustClientRect(clientRect, top, left) {
- clientRect.top += top;
- clientRect.bottom = clientRect.top + clientRect.height;
- clientRect.left += left;
- clientRect.right = clientRect.left + clientRect.width;
-}
-/**
- * Checks whether the pointer coordinates are close to a ClientRect.
- * @param rect ClientRect to check against.
- * @param threshold Threshold around the ClientRect.
- * @param pointerX Coordinates along the X axis.
- * @param pointerY Coordinates along the Y axis.
- */
-function isPointerNearClientRect(rect, threshold, pointerX, pointerY) {
- const { top, right, bottom, left, width, height } = rect;
- const xThreshold = width * threshold;
- const yThreshold = height * threshold;
- return pointerY > top - yThreshold && pointerY < bottom + yThreshold &&
- pointerX > left - xThreshold && pointerX < right + xThreshold;
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Keeps track of the scroll position and dimensions of the parents of an element. */
-class ParentPositionTracker {
- constructor(_document, _viewportRuler) {
- this._document = _document;
- this._viewportRuler = _viewportRuler;
- /** Cached positions of the scrollable parent elements. */
- this.positions = new Map();
- }
- /** Clears the cached positions. */
- clear() {
- this.positions.clear();
- }
- /** Caches the positions. Should be called at the beginning of a drag sequence. */
- cache(elements) {
- this.clear();
- this.positions.set(this._document, {
- scrollPosition: this._viewportRuler.getViewportScrollPosition(),
- });
- elements.forEach(element => {
- this.positions.set(element, {
- scrollPosition: { top: element.scrollTop, left: element.scrollLeft },
- clientRect: getMutableClientRect(element)
- });
- });
- }
- /** Handles scrolling while a drag is taking place. */
- handleScroll(event) {
- const target = _getEventTarget(event);
- const cachedPosition = this.positions.get(target);
- if (!cachedPosition) {
- return null;
- }
- // Used when figuring out whether an element is inside the scroll parent. If the scrolled
- // parent is the `document`, we use the `documentElement`, because IE doesn't support
- // `contains` on the `document`.
- const scrolledParentNode = target === this._document ? target.documentElement : target;
- const scrollPosition = cachedPosition.scrollPosition;
- let newTop;
- let newLeft;
- if (target === this._document) {
- const viewportScrollPosition = this._viewportRuler.getViewportScrollPosition();
- newTop = viewportScrollPosition.top;
- newLeft = viewportScrollPosition.left;
- }
- else {
- newTop = target.scrollTop;
- newLeft = target.scrollLeft;
- }
- const topDifference = scrollPosition.top - newTop;
- const leftDifference = scrollPosition.left - newLeft;
- // Go through and update the cached positions of the scroll
- // parents that are inside the element that was scrolled.
- this.positions.forEach((position, node) => {
- if (position.clientRect && target !== node && scrolledParentNode.contains(node)) {
- adjustClientRect(position.clientRect, topDifference, leftDifference);
- }
- });
- scrollPosition.top = newTop;
- scrollPosition.left = newLeft;
- return { top: topDifference, left: leftDifference };
- }
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Creates a deep clone of an element. */
-function deepCloneNode(node) {
- const clone = node.cloneNode(true);
- const descendantsWithId = clone.querySelectorAll('[id]');
- const nodeName = node.nodeName.toLowerCase();
- // Remove the `id` to avoid having multiple elements with the same id on the page.
- clone.removeAttribute('id');
- for (let i = 0; i < descendantsWithId.length; i++) {
- descendantsWithId[i].removeAttribute('id');
- }
- if (nodeName === 'canvas') {
- transferCanvasData(node, clone);
- }
- else if (nodeName === 'input' || nodeName === 'select' || nodeName === 'textarea') {
- transferInputData(node, clone);
- }
- transferData('canvas', node, clone, transferCanvasData);
- transferData('input, textarea, select', node, clone, transferInputData);
- return clone;
-}
-/** Matches elements between an element and its clone and allows for their data to be cloned. */
-function transferData(selector, node, clone, callback) {
- const descendantElements = node.querySelectorAll(selector);
- if (descendantElements.length) {
- const cloneElements = clone.querySelectorAll(selector);
- for (let i = 0; i < descendantElements.length; i++) {
- callback(descendantElements[i], cloneElements[i]);
- }
- }
-}
-// Counter for unique cloned radio button names.
-let cloneUniqueId = 0;
-/** Transfers the data of one input element to another. */
-function transferInputData(source, clone) {
- // Browsers throw an error when assigning the value of a file input programmatically.
- if (clone.type !== 'file') {
- clone.value = source.value;
- }
- // Radio button `name` attributes must be unique for radio button groups
- // otherwise original radio buttons can lose their checked state
- // once the clone is inserted in the DOM.
- if (clone.type === 'radio' && clone.name) {
- clone.name = `mat-clone-${clone.name}-${cloneUniqueId++}`;
- }
-}
-/** Transfers the data of one canvas element to another. */
-function transferCanvasData(source, clone) {
- const context = clone.getContext('2d');
- if (context) {
- // In some cases `drawImage` can throw (e.g. if the canvas size is 0x0).
- // We can't do much about it so just ignore the error.
- try {
- context.drawImage(source, 0, 0);
- }
- catch (_a) { }
- }
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Options that can be used to bind a passive event listener. */
-const passiveEventListenerOptions = normalizePassiveListenerOptions({ passive: true });
-/** Options that can be used to bind an active event listener. */
-const activeEventListenerOptions = normalizePassiveListenerOptions({ passive: false });
-/**
- * Time in milliseconds for which to ignore mouse events, after
- * receiving a touch event. Used to avoid doing double work for
- * touch devices where the browser fires fake mouse events, in
- * addition to touch events.
- */
-const MOUSE_EVENT_IGNORE_TIME = 800;
-/** Inline styles to be set as `!important` while dragging. */
-const dragImportantProperties = new Set([
- // Needs to be important, because some `mat-table` sets `position: sticky !important`. See #22781.
- 'position'
-]);
-/**
- * Reference to a draggable item. Used to manipulate or dispose of the item.
- */
-class DragRef {
- constructor(element, _config, _document, _ngZone, _viewportRuler, _dragDropRegistry) {
- this._config = _config;
- this._document = _document;
- this._ngZone = _ngZone;
- this._viewportRuler = _viewportRuler;
- this._dragDropRegistry = _dragDropRegistry;
- /**
- * CSS `transform` applied to the element when it isn't being dragged. We need a
- * passive transform in order for the dragged element to retain its new position
- * after the user has stopped dragging and because we need to know the relative
- * position in case they start dragging again. This corresponds to `element.style.transform`.
- */
- this._passiveTransform = { x: 0, y: 0 };
- /** CSS `transform` that is applied to the element while it's being dragged. */
- this._activeTransform = { x: 0, y: 0 };
- /**
- * Whether the dragging sequence has been started. Doesn't
- * necessarily mean that the element has been moved.
- */
- this._hasStartedDragging = false;
- /** Emits when the item is being moved. */
- this._moveEvents = new Subject();
- /** Subscription to pointer movement events. */
- this._pointerMoveSubscription = Subscription.EMPTY;
- /** Subscription to the event that is dispatched when the user lifts their pointer. */
- this._pointerUpSubscription = Subscription.EMPTY;
- /** Subscription to the viewport being scrolled. */
- this._scrollSubscription = Subscription.EMPTY;
- /** Subscription to the viewport being resized. */
- this._resizeSubscription = Subscription.EMPTY;
- /** Cached reference to the boundary element. */
- this._boundaryElement = null;
- /** Whether the native dragging interactions have been enabled on the root element. */
- this._nativeInteractionsEnabled = true;
- /** Elements that can be used to drag the draggable item. */
- this._handles = [];
- /** Registered handles that are currently disabled. */
- this._disabledHandles = new Set();
- /** Layout direction of the item. */
- this._direction = 'ltr';
- /**
- * Amount of milliseconds to wait after the user has put their
- * pointer down before starting to drag the element.
- */
- this.dragStartDelay = 0;
- this._disabled = false;
- /** Emits as the drag sequence is being prepared. */
- this.beforeStarted = new Subject();
- /** Emits when the user starts dragging the item. */
- this.started = new Subject();
- /** Emits when the user has released a drag item, before any animations have started. */
- this.released = new Subject();
- /** Emits when the user stops dragging an item in the container. */
- this.ended = new Subject();
- /** Emits when the user has moved the item into a new container. */
- this.entered = new Subject();
- /** Emits when the user removes the item its container by dragging it into another container. */
- this.exited = new Subject();
- /** Emits when the user drops the item inside a container. */
- this.dropped = new Subject();
- /**
- * Emits as the user is dragging the item. Use with caution,
- * because this event will fire for every pixel that the user has dragged.
- */
- this.moved = this._moveEvents;
- /** Handler for the `mousedown`/`touchstart` events. */
- this._pointerDown = (event) => {
- this.beforeStarted.next();
- // Delegate the event based on whether it started from a handle or the element itself.
- if (this._handles.length) {
- const targetHandle = this._handles.find(handle => {
- const target = _getEventTarget(event);
- return !!target && (target === handle || handle.contains(target));
- });
- if (targetHandle && !this._disabledHandles.has(targetHandle) && !this.disabled) {
- this._initializeDragSequence(targetHandle, event);
- }
- }
- else if (!this.disabled) {
- this._initializeDragSequence(this._rootElement, event);
- }
- };
- /** Handler that is invoked when the user moves their pointer after they've initiated a drag. */
- this._pointerMove = (event) => {
- const pointerPosition = this._getPointerPositionOnPage(event);
- if (!this._hasStartedDragging) {
- const distanceX = Math.abs(pointerPosition.x - this._pickupPositionOnPage.x);
- const distanceY = Math.abs(pointerPosition.y - this._pickupPositionOnPage.y);
- const isOverThreshold = distanceX + distanceY >= this._config.dragStartThreshold;
- // Only start dragging after the user has moved more than the minimum distance in either
- // direction. Note that this is preferrable over doing something like `skip(minimumDistance)`
- // in the `pointerMove` subscription, because we're not guaranteed to have one move event
- // per pixel of movement (e.g. if the user moves their pointer quickly).
- if (isOverThreshold) {
- const isDelayElapsed = Date.now() >= this._dragStartTime + this._getDragStartDelay(event);
- const container = this._dropContainer;
- if (!isDelayElapsed) {
- this._endDragSequence(event);
- return;
- }
- // Prevent other drag sequences from starting while something in the container is still
- // being dragged. This can happen while we're waiting for the drop animation to finish
- // and can cause errors, because some elements might still be moving around.
- if (!container || (!container.isDragging() && !container.isReceiving())) {
- // Prevent the default action as soon as the dragging sequence is considered as
- // "started" since waiting for the next event can allow the device to begin scrolling.
- event.preventDefault();
- this._hasStartedDragging = true;
- this._ngZone.run(() => this._startDragSequence(event));
- }
- }
- return;
- }
- // We only need the preview dimensions if we have a boundary element.
- if (this._boundaryElement) {
- // Cache the preview element rect if we haven't cached it already or if
- // we cached it too early before the element dimensions were computed.
- if (!this._previewRect || (!this._previewRect.width && !this._previewRect.height)) {
- this._previewRect = (this._preview || this._rootElement).getBoundingClientRect();
- }
- }
- // We prevent the default action down here so that we know that dragging has started. This is
- // important for touch devices where doing this too early can unnecessarily block scrolling,
- // if there's a dragging delay.
- event.preventDefault();
- const constrainedPointerPosition = this._getConstrainedPointerPosition(pointerPosition);
- this._hasMoved = true;
- this._lastKnownPointerPosition = pointerPosition;
- this._updatePointerDirectionDelta(constrainedPointerPosition);
- if (this._dropContainer) {
- this._updateActiveDropContainer(constrainedPointerPosition, pointerPosition);
- }
- else {
- const activeTransform = this._activeTransform;
- activeTransform.x =
- constrainedPointerPosition.x - this._pickupPositionOnPage.x + this._passiveTransform.x;
- activeTransform.y =
- constrainedPointerPosition.y - this._pickupPositionOnPage.y + this._passiveTransform.y;
- this._applyRootElementTransform(activeTransform.x, activeTransform.y);
- // Apply transform as attribute if dragging and svg element to work for IE
- if (typeof SVGElement !== 'undefined' && this._rootElement instanceof SVGElement) {
- const appliedTransform = `translate(${activeTransform.x} ${activeTransform.y})`;
- this._rootElement.setAttribute('transform', appliedTransform);
- }
- }
- // Since this event gets fired for every pixel while dragging, we only
- // want to fire it if the consumer opted into it. Also we have to
- // re-enter the zone because we run all of the events on the outside.
- if (this._moveEvents.observers.length) {
- this._ngZone.run(() => {
- this._moveEvents.next({
- source: this,
- pointerPosition: constrainedPointerPosition,
- event,
- distance: this._getDragDistance(constrainedPointerPosition),
- delta: this._pointerDirectionDelta
- });
- });
- }
- };
- /** Handler that is invoked when the user lifts their pointer up, after initiating a drag. */
- this._pointerUp = (event) => {
- this._endDragSequence(event);
- };
- this.withRootElement(element).withParent(_config.parentDragRef || null);
- this._parentPositions = new ParentPositionTracker(_document, _viewportRuler);
- _dragDropRegistry.registerDragItem(this);
- }
- /** Whether starting to drag this element is disabled. */
- get disabled() {
- return this._disabled || !!(this._dropContainer && this._dropContainer.disabled);
- }
- set disabled(value) {
- const newValue = coerceBooleanProperty(value);
- if (newValue !== this._disabled) {
- this._disabled = newValue;
- this._toggleNativeDragInteractions();
- this._handles.forEach(handle => toggleNativeDragInteractions(handle, newValue));
- }
- }
- /**
- * Returns the element that is being used as a placeholder
- * while the current element is being dragged.
- */
- getPlaceholderElement() {
- return this._placeholder;
- }
- /** Returns the root draggable element. */
- getRootElement() {
- return this._rootElement;
- }
- /**
- * Gets the currently-visible element that represents the drag item.
- * While dragging this is the placeholder, otherwise it's the root element.
- */
- getVisibleElement() {
- return this.isDragging() ? this.getPlaceholderElement() : this.getRootElement();
- }
- /** Registers the handles that can be used to drag the element. */
- withHandles(handles) {
- this._handles = handles.map(handle => coerceElement(handle));
- this._handles.forEach(handle => toggleNativeDragInteractions(handle, this.disabled));
- this._toggleNativeDragInteractions();
- // Delete any lingering disabled handles that may have been destroyed. Note that we re-create
- // the set, rather than iterate over it and filter out the destroyed handles, because while
- // the ES spec allows for sets to be modified while they're being iterated over, some polyfills
- // use an array internally which may throw an error.
- const disabledHandles = new Set();
- this._disabledHandles.forEach(handle => {
- if (this._handles.indexOf(handle) > -1) {
- disabledHandles.add(handle);
- }
- });
- this._disabledHandles = disabledHandles;
- return this;
- }
- /**
- * Registers the template that should be used for the drag preview.
- * @param template Template that from which to stamp out the preview.
- */
- withPreviewTemplate(template) {
- this._previewTemplate = template;
- return this;
- }
- /**
- * Registers the template that should be used for the drag placeholder.
- * @param template Template that from which to stamp out the placeholder.
- */
- withPlaceholderTemplate(template) {
- this._placeholderTemplate = template;
- return this;
- }
- /**
- * Sets an alternate drag root element. The root element is the element that will be moved as
- * the user is dragging. Passing an alternate root element is useful when trying to enable
- * dragging on an element that you might not have access to.
- */
- withRootElement(rootElement) {
- const element = coerceElement(rootElement);
- if (element !== this._rootElement) {
- if (this._rootElement) {
- this._removeRootElementListeners(this._rootElement);
- }
- this._ngZone.runOutsideAngular(() => {
- element.addEventListener('mousedown', this._pointerDown, activeEventListenerOptions);
- element.addEventListener('touchstart', this._pointerDown, passiveEventListenerOptions);
- });
- this._initialTransform = undefined;
- this._rootElement = element;
- }
- if (typeof SVGElement !== 'undefined' && this._rootElement instanceof SVGElement) {
- this._ownerSVGElement = this._rootElement.ownerSVGElement;
- }
- return this;
- }
- /**
- * Element to which the draggable's position will be constrained.
- */
- withBoundaryElement(boundaryElement) {
- this._boundaryElement = boundaryElement ? coerceElement(boundaryElement) : null;
- this._resizeSubscription.unsubscribe();
- if (boundaryElement) {
- this._resizeSubscription = this._viewportRuler
- .change(10)
- .subscribe(() => this._containInsideBoundaryOnResize());
- }
- return this;
- }
- /** Sets the parent ref that the ref is nested in. */
- withParent(parent) {
- this._parentDragRef = parent;
- return this;
- }
- /** Removes the dragging functionality from the DOM element. */
- dispose() {
- this._removeRootElementListeners(this._rootElement);
- // Do this check before removing from the registry since it'll
- // stop being considered as dragged once it is removed.
- if (this.isDragging()) {
- // Since we move out the element to the end of the body while it's being
- // dragged, we have to make sure that it's removed if it gets destroyed.
- removeNode(this._rootElement);
- }
- removeNode(this._anchor);
- this._destroyPreview();
- this._destroyPlaceholder();
- this._dragDropRegistry.removeDragItem(this);
- this._removeSubscriptions();
- this.beforeStarted.complete();
- this.started.complete();
- this.released.complete();
- this.ended.complete();
- this.entered.complete();
- this.exited.complete();
- this.dropped.complete();
- this._moveEvents.complete();
- this._handles = [];
- this._disabledHandles.clear();
- this._dropContainer = undefined;
- this._resizeSubscription.unsubscribe();
- this._parentPositions.clear();
- this._boundaryElement = this._rootElement = this._ownerSVGElement = this._placeholderTemplate =
- this._previewTemplate = this._anchor = this._parentDragRef = null;
- }
- /** Checks whether the element is currently being dragged. */
- isDragging() {
- return this._hasStartedDragging && this._dragDropRegistry.isDragging(this);
- }
- /** Resets a standalone drag item to its initial position. */
- reset() {
- this._rootElement.style.transform = this._initialTransform || '';
- this._activeTransform = { x: 0, y: 0 };
- this._passiveTransform = { x: 0, y: 0 };
- }
- /**
- * Sets a handle as disabled. While a handle is disabled, it'll capture and interrupt dragging.
- * @param handle Handle element that should be disabled.
- */
- disableHandle(handle) {
- if (!this._disabledHandles.has(handle) && this._handles.indexOf(handle) > -1) {
- this._disabledHandles.add(handle);
- toggleNativeDragInteractions(handle, true);
- }
- }
- /**
- * Enables a handle, if it has been disabled.
- * @param handle Handle element to be enabled.
- */
- enableHandle(handle) {
- if (this._disabledHandles.has(handle)) {
- this._disabledHandles.delete(handle);
- toggleNativeDragInteractions(handle, this.disabled);
- }
- }
- /** Sets the layout direction of the draggable item. */
- withDirection(direction) {
- this._direction = direction;
- return this;
- }
- /** Sets the container that the item is part of. */
- _withDropContainer(container) {
- this._dropContainer = container;
- }
- /**
- * Gets the current position in pixels the draggable outside of a drop container.
- */
- getFreeDragPosition() {
- const position = this.isDragging() ? this._activeTransform : this._passiveTransform;
- return { x: position.x, y: position.y };
- }
- /**
- * Sets the current position in pixels the draggable outside of a drop container.
- * @param value New position to be set.
- */
- setFreeDragPosition(value) {
- this._activeTransform = { x: 0, y: 0 };
- this._passiveTransform.x = value.x;
- this._passiveTransform.y = value.y;
- if (!this._dropContainer) {
- this._applyRootElementTransform(value.x, value.y);
- }
- return this;
- }
- /**
- * Sets the container into which to insert the preview element.
- * @param value Container into which to insert the preview.
- */
- withPreviewContainer(value) {
- this._previewContainer = value;
- return this;
- }
- /** Updates the item's sort order based on the last-known pointer position. */
- _sortFromLastPointerPosition() {
- const position = this._lastKnownPointerPosition;
- if (position && this._dropContainer) {
- this._updateActiveDropContainer(this._getConstrainedPointerPosition(position), position);
- }
- }
- /** Unsubscribes from the global subscriptions. */
- _removeSubscriptions() {
- this._pointerMoveSubscription.unsubscribe();
- this._pointerUpSubscription.unsubscribe();
- this._scrollSubscription.unsubscribe();
- }
- /** Destroys the preview element and its ViewRef. */
- _destroyPreview() {
- if (this._preview) {
- removeNode(this._preview);
- }
- if (this._previewRef) {
- this._previewRef.destroy();
- }
- this._preview = this._previewRef = null;
- }
- /** Destroys the placeholder element and its ViewRef. */
- _destroyPlaceholder() {
- if (this._placeholder) {
- removeNode(this._placeholder);
- }
- if (this._placeholderRef) {
- this._placeholderRef.destroy();
- }
- this._placeholder = this._placeholderRef = null;
- }
- /**
- * Clears subscriptions and stops the dragging sequence.
- * @param event Browser event object that ended the sequence.
- */
- _endDragSequence(event) {
- // Note that here we use `isDragging` from the service, rather than from `this`.
- // The difference is that the one from the service reflects whether a dragging sequence
- // has been initiated, whereas the one on `this` includes whether the user has passed
- // the minimum dragging threshold.
- if (!this._dragDropRegistry.isDragging(this)) {
- return;
- }
- this._removeSubscriptions();
- this._dragDropRegistry.stopDragging(this);
- this._toggleNativeDragInteractions();
- if (this._handles) {
- this._rootElement.style.webkitTapHighlightColor = this._rootElementTapHighlight;
- }
- if (!this._hasStartedDragging) {
- return;
- }
- this.released.next({ source: this });
- if (this._dropContainer) {
- // Stop scrolling immediately, instead of waiting for the animation to finish.
- this._dropContainer._stopScrolling();
- this._animatePreviewToPlaceholder().then(() => {
- this._cleanupDragArtifacts(event);
- this._cleanupCachedDimensions();
- this._dragDropRegistry.stopDragging(this);
- });
- }
- else {
- // Convert the active transform into a passive one. This means that next time
- // the user starts dragging the item, its position will be calculated relatively
- // to the new passive transform.
- this._passiveTransform.x = this._activeTransform.x;
- const pointerPosition = this._getPointerPositionOnPage(event);
- this._passiveTransform.y = this._activeTransform.y;
- this._ngZone.run(() => {
- this.ended.next({
- source: this,
- distance: this._getDragDistance(pointerPosition),
- dropPoint: pointerPosition
- });
- });
- this._cleanupCachedDimensions();
- this._dragDropRegistry.stopDragging(this);
- }
- }
- /** Starts the dragging sequence. */
- _startDragSequence(event) {
- if (isTouchEvent(event)) {
- this._lastTouchEventTime = Date.now();
- }
- this._toggleNativeDragInteractions();
- const dropContainer = this._dropContainer;
- if (dropContainer) {
- const element = this._rootElement;
- const parent = element.parentNode;
- const placeholder = this._placeholder = this._createPlaceholderElement();
- const anchor = this._anchor = this._anchor || this._document.createComment('');
- // Needs to happen before the root element is moved.
- const shadowRoot = this._getShadowRoot();
- // Insert an anchor node so that we can restore the element's position in the DOM.
- parent.insertBefore(anchor, element);
- // There's no risk of transforms stacking when inside a drop container so
- // we can keep the initial transform up to date any time dragging starts.
- this._initialTransform = element.style.transform || '';
- // Create the preview after the initial transform has
- // been cached, because it can be affected by the transform.
- this._preview = this._createPreviewElement();
- // We move the element out at the end of the body and we make it hidden, because keeping it in
- // place will throw off the consumer's `:last-child` selectors. We can't remove the element
- // from the DOM completely, because iOS will stop firing all subsequent events in the chain.
- toggleVisibility(element, false, dragImportantProperties);
- this._document.body.appendChild(parent.replaceChild(placeholder, element));
- this._getPreviewInsertionPoint(parent, shadowRoot).appendChild(this._preview);
- this.started.next({ source: this }); // Emit before notifying the container.
- dropContainer.start();
- this._initialContainer = dropContainer;
- this._initialIndex = dropContainer.getItemIndex(this);
- }
- else {
- this.started.next({ source: this });
- this._initialContainer = this._initialIndex = undefined;
- }
- // Important to run after we've called `start` on the parent container
- // so that it has had time to resolve its scrollable parents.
- this._parentPositions.cache(dropContainer ? dropContainer.getScrollableParents() : []);
- }
- /**
- * Sets up the different variables and subscriptions
- * that will be necessary for the dragging sequence.
- * @param referenceElement Element that started the drag sequence.
- * @param event Browser event object that started the sequence.
- */
- _initializeDragSequence(referenceElement, event) {
- // Stop propagation if the item is inside another
- // draggable so we don't start multiple drag sequences.
- if (this._parentDragRef) {
- event.stopPropagation();
- }
- const isDragging = this.isDragging();
- const isTouchSequence = isTouchEvent(event);
- const isAuxiliaryMouseButton = !isTouchSequence && event.button !== 0;
- const rootElement = this._rootElement;
- const target = _getEventTarget(event);
- const isSyntheticEvent = !isTouchSequence && this._lastTouchEventTime &&
- this._lastTouchEventTime + MOUSE_EVENT_IGNORE_TIME > Date.now();
- const isFakeEvent = isTouchSequence ? isFakeTouchstartFromScreenReader(event) :
- isFakeMousedownFromScreenReader(event);
- // If the event started from an element with the native HTML drag&drop, it'll interfere
- // with our own dragging (e.g. `img` tags do it by default). Prevent the default action
- // to stop it from happening. Note that preventing on `dragstart` also seems to work, but
- // it's flaky and it fails if the user drags it away quickly. Also note that we only want
- // to do this for `mousedown` since doing the same for `touchstart` will stop any `click`
- // events from firing on touch devices.
- if (target && target.draggable && event.type === 'mousedown') {
- event.preventDefault();
- }
- // Abort if the user is already dragging or is using a mouse button other than the primary one.
- if (isDragging || isAuxiliaryMouseButton || isSyntheticEvent || isFakeEvent) {
- return;
- }
- // If we've got handles, we need to disable the tap highlight on the entire root element,
- // otherwise iOS will still add it, even though all the drag interactions on the handle
- // are disabled.
- if (this._handles.length) {
- this._rootElementTapHighlight = rootElement.style.webkitTapHighlightColor || '';
- rootElement.style.webkitTapHighlightColor = 'transparent';
- }
- this._hasStartedDragging = this._hasMoved = false;
- // Avoid multiple subscriptions and memory leaks when multi touch
- // (isDragging check above isn't enough because of possible temporal and/or dimensional delays)
- this._removeSubscriptions();
- this._pointerMoveSubscription = this._dragDropRegistry.pointerMove.subscribe(this._pointerMove);
- this._pointerUpSubscription = this._dragDropRegistry.pointerUp.subscribe(this._pointerUp);
- this._scrollSubscription = this._dragDropRegistry
- .scrolled(this._getShadowRoot())
- .subscribe(scrollEvent => this._updateOnScroll(scrollEvent));
- if (this._boundaryElement) {
- this._boundaryRect = getMutableClientRect(this._boundaryElement);
- }
- // If we have a custom preview we can't know ahead of time how large it'll be so we position
- // it next to the cursor. The exception is when the consumer has opted into making the preview
- // the same size as the root element, in which case we do know the size.
- const previewTemplate = this._previewTemplate;
- this._pickupPositionInElement = previewTemplate && previewTemplate.template &&
- !previewTemplate.matchSize ? { x: 0, y: 0 } :
- this._getPointerPositionInElement(referenceElement, event);
- const pointerPosition = this._pickupPositionOnPage = this._lastKnownPointerPosition =
- this._getPointerPositionOnPage(event);
- this._pointerDirectionDelta = { x: 0, y: 0 };
- this._pointerPositionAtLastDirectionChange = { x: pointerPosition.x, y: pointerPosition.y };
- this._dragStartTime = Date.now();
- this._dragDropRegistry.startDragging(this, event);
- }
- /** Cleans up the DOM artifacts that were added to facilitate the element being dragged. */
- _cleanupDragArtifacts(event) {
- // Restore the element's visibility and insert it at its old position in the DOM.
- // It's important that we maintain the position, because moving the element around in the DOM
- // can throw off `NgFor` which does smart diffing and re-creates elements only when necessary,
- // while moving the existing elements in all other cases.
- toggleVisibility(this._rootElement, true, dragImportantProperties);
- this._anchor.parentNode.replaceChild(this._rootElement, this._anchor);
- this._destroyPreview();
- this._destroyPlaceholder();
- this._boundaryRect = this._previewRect = this._initialTransform = undefined;
- // Re-enter the NgZone since we bound `document` events on the outside.
- this._ngZone.run(() => {
- const container = this._dropContainer;
- const currentIndex = container.getItemIndex(this);
- const pointerPosition = this._getPointerPositionOnPage(event);
- const distance = this._getDragDistance(pointerPosition);
- const isPointerOverContainer = container._isOverContainer(pointerPosition.x, pointerPosition.y);
- this.ended.next({ source: this, distance, dropPoint: pointerPosition });
- this.dropped.next({
- item: this,
- currentIndex,
- previousIndex: this._initialIndex,
- container: container,
- previousContainer: this._initialContainer,
- isPointerOverContainer,
- distance,
- dropPoint: pointerPosition
- });
- container.drop(this, currentIndex, this._initialIndex, this._initialContainer, isPointerOverContainer, distance, pointerPosition);
- this._dropContainer = this._initialContainer;
- });
- }
- /**
- * Updates the item's position in its drop container, or moves it
- * into a new one, depending on its current drag position.
- */
- _updateActiveDropContainer({ x, y }, { x: rawX, y: rawY }) {
- // Drop container that draggable has been moved into.
- let newContainer = this._initialContainer._getSiblingContainerFromPosition(this, x, y);
- // If we couldn't find a new container to move the item into, and the item has left its
- // initial container, check whether the it's over the initial container. This handles the
- // case where two containers are connected one way and the user tries to undo dragging an
- // item into a new container.
- if (!newContainer && this._dropContainer !== this._initialContainer &&
- this._initialContainer._isOverContainer(x, y)) {
- newContainer = this._initialContainer;
- }
- if (newContainer && newContainer !== this._dropContainer) {
- this._ngZone.run(() => {
- // Notify the old container that the item has left.
- this.exited.next({ item: this, container: this._dropContainer });
- this._dropContainer.exit(this);
- // Notify the new container that the item has entered.
- this._dropContainer = newContainer;
- this._dropContainer.enter(this, x, y, newContainer === this._initialContainer &&
- // If we're re-entering the initial container and sorting is disabled,
- // put item the into its starting index to begin with.
- newContainer.sortingDisabled ? this._initialIndex : undefined);
- this.entered.next({
- item: this,
- container: newContainer,
- currentIndex: newContainer.getItemIndex(this)
- });
- });
- }
- // Dragging may have been interrupted as a result of the events above.
- if (this.isDragging()) {
- this._dropContainer._startScrollingIfNecessary(rawX, rawY);
- this._dropContainer._sortItem(this, x, y, this._pointerDirectionDelta);
- this._applyPreviewTransform(x - this._pickupPositionInElement.x, y - this._pickupPositionInElement.y);
- }
- }
- /**
- * Creates the element that will be rendered next to the user's pointer
- * and will be used as a preview of the element that is being dragged.
- */
- _createPreviewElement() {
- const previewConfig = this._previewTemplate;
- const previewClass = this.previewClass;
- const previewTemplate = previewConfig ? previewConfig.template : null;
- let preview;
- if (previewTemplate && previewConfig) {
- // Measure the element before we've inserted the preview
- // since the insertion could throw off the measurement.
- const rootRect = previewConfig.matchSize ? this._rootElement.getBoundingClientRect() : null;
- const viewRef = previewConfig.viewContainer.createEmbeddedView(previewTemplate, previewConfig.context);
- viewRef.detectChanges();
- preview = getRootNode(viewRef, this._document);
- this._previewRef = viewRef;
- if (previewConfig.matchSize) {
- matchElementSize(preview, rootRect);
- }
- else {
- preview.style.transform =
- getTransform(this._pickupPositionOnPage.x, this._pickupPositionOnPage.y);
- }
- }
- else {
- const element = this._rootElement;
- preview = deepCloneNode(element);
- matchElementSize(preview, element.getBoundingClientRect());
- if (this._initialTransform) {
- preview.style.transform = this._initialTransform;
- }
- }
- extendStyles(preview.style, {
- // It's important that we disable the pointer events on the preview, because
- // it can throw off the `document.elementFromPoint` calls in the `CdkDropList`.
- 'pointer-events': 'none',
- // We have to reset the margin, because it can throw off positioning relative to the viewport.
- 'margin': '0',
- 'position': 'fixed',
- 'top': '0',
- 'left': '0',
- 'z-index': `${this._config.zIndex || 1000}`
- }, dragImportantProperties);
- toggleNativeDragInteractions(preview, false);
- preview.classList.add('cdk-drag-preview');
- preview.setAttribute('dir', this._direction);
- if (previewClass) {
- if (Array.isArray(previewClass)) {
- previewClass.forEach(className => preview.classList.add(className));
- }
- else {
- preview.classList.add(previewClass);
- }
- }
- return preview;
- }
- /**
- * Animates the preview element from its current position to the location of the drop placeholder.
- * @returns Promise that resolves when the animation completes.
- */
- _animatePreviewToPlaceholder() {
- // If the user hasn't moved yet, the transitionend event won't fire.
- if (!this._hasMoved) {
- return Promise.resolve();
- }
- const placeholderRect = this._placeholder.getBoundingClientRect();
- // Apply the class that adds a transition to the preview.
- this._preview.classList.add('cdk-drag-animating');
- // Move the preview to the placeholder position.
- this._applyPreviewTransform(placeholderRect.left, placeholderRect.top);
- // If the element doesn't have a `transition`, the `transitionend` event won't fire. Since
- // we need to trigger a style recalculation in order for the `cdk-drag-animating` class to
- // apply its style, we take advantage of the available info to figure out whether we need to
- // bind the event in the first place.
- const duration = getTransformTransitionDurationInMs(this._preview);
- if (duration === 0) {
- return Promise.resolve();
- }
- return this._ngZone.runOutsideAngular(() => {
- return new Promise(resolve => {
- const handler = ((event) => {
- var _a;
- if (!event || (_getEventTarget(event) === this._preview &&
- event.propertyName === 'transform')) {
- (_a = this._preview) === null || _a === void 0 ? void 0 : _a.removeEventListener('transitionend', handler);
- resolve();
- clearTimeout(timeout);
- }
- });
- // If a transition is short enough, the browser might not fire the `transitionend` event.
- // Since we know how long it's supposed to take, add a timeout with a 50% buffer that'll
- // fire if the transition hasn't completed when it was supposed to.
- const timeout = setTimeout(handler, duration * 1.5);
- this._preview.addEventListener('transitionend', handler);
- });
- });
- }
- /** Creates an element that will be shown instead of the current element while dragging. */
- _createPlaceholderElement() {
- const placeholderConfig = this._placeholderTemplate;
- const placeholderTemplate = placeholderConfig ? placeholderConfig.template : null;
- let placeholder;
- if (placeholderTemplate) {
- this._placeholderRef = placeholderConfig.viewContainer.createEmbeddedView(placeholderTemplate, placeholderConfig.context);
- this._placeholderRef.detectChanges();
- placeholder = getRootNode(this._placeholderRef, this._document);
- }
- else {
- placeholder = deepCloneNode(this._rootElement);
- }
- placeholder.classList.add('cdk-drag-placeholder');
- return placeholder;
- }
- /**
- * Figures out the coordinates at which an element was picked up.
- * @param referenceElement Element that initiated the dragging.
- * @param event Event that initiated the dragging.
- */
- _getPointerPositionInElement(referenceElement, event) {
- const elementRect = this._rootElement.getBoundingClientRect();
- const handleElement = referenceElement === this._rootElement ? null : referenceElement;
- const referenceRect = handleElement ? handleElement.getBoundingClientRect() : elementRect;
- const point = isTouchEvent(event) ? event.targetTouches[0] : event;
- const scrollPosition = this._getViewportScrollPosition();
- const x = point.pageX - referenceRect.left - scrollPosition.left;
- const y = point.pageY - referenceRect.top - scrollPosition.top;
- return {
- x: referenceRect.left - elementRect.left + x,
- y: referenceRect.top - elementRect.top + y
- };
- }
- /** Determines the point of the page that was touched by the user. */
- _getPointerPositionOnPage(event) {
- const scrollPosition = this._getViewportScrollPosition();
- const point = isTouchEvent(event) ?
- // `touches` will be empty for start/end events so we have to fall back to `changedTouches`.
- // Also note that on real devices we're guaranteed for either `touches` or `changedTouches`
- // to have a value, but Firefox in device emulation mode has a bug where both can be empty
- // for `touchstart` and `touchend` so we fall back to a dummy object in order to avoid
- // throwing an error. The value returned here will be incorrect, but since this only
- // breaks inside a developer tool and the value is only used for secondary information,
- // we can get away with it. See https://bugzilla.mozilla.org/show_bug.cgi?id=1615824.
- (event.touches[0] || event.changedTouches[0] || { pageX: 0, pageY: 0 }) : event;
- const x = point.pageX - scrollPosition.left;
- const y = point.pageY - scrollPosition.top;
- // if dragging SVG element, try to convert from the screen coordinate system to the SVG
- // coordinate system
- if (this._ownerSVGElement) {
- const svgMatrix = this._ownerSVGElement.getScreenCTM();
- if (svgMatrix) {
- const svgPoint = this._ownerSVGElement.createSVGPoint();
- svgPoint.x = x;
- svgPoint.y = y;
- return svgPoint.matrixTransform(svgMatrix.inverse());
- }
- }
- return { x, y };
- }
- /** Gets the pointer position on the page, accounting for any position constraints. */
- _getConstrainedPointerPosition(point) {
- const dropContainerLock = this._dropContainer ? this._dropContainer.lockAxis : null;
- let { x, y } = this.constrainPosition ? this.constrainPosition(point, this) : point;
- if (this.lockAxis === 'x' || dropContainerLock === 'x') {
- y = this._pickupPositionOnPage.y;
- }
- else if (this.lockAxis === 'y' || dropContainerLock === 'y') {
- x = this._pickupPositionOnPage.x;
- }
- if (this._boundaryRect) {
- const { x: pickupX, y: pickupY } = this._pickupPositionInElement;
- const boundaryRect = this._boundaryRect;
- const previewRect = this._previewRect;
- const minY = boundaryRect.top + pickupY;
- const maxY = boundaryRect.bottom - (previewRect.height - pickupY);
- const minX = boundaryRect.left + pickupX;
- const maxX = boundaryRect.right - (previewRect.width - pickupX);
- x = clamp$1(x, minX, maxX);
- y = clamp$1(y, minY, maxY);
- }
- return { x, y };
- }
- /** Updates the current drag delta, based on the user's current pointer position on the page. */
- _updatePointerDirectionDelta(pointerPositionOnPage) {
- const { x, y } = pointerPositionOnPage;
- const delta = this._pointerDirectionDelta;
- const positionSinceLastChange = this._pointerPositionAtLastDirectionChange;
- // Amount of pixels the user has dragged since the last time the direction changed.
- const changeX = Math.abs(x - positionSinceLastChange.x);
- const changeY = Math.abs(y - positionSinceLastChange.y);
- // Because we handle pointer events on a per-pixel basis, we don't want the delta
- // to change for every pixel, otherwise anything that depends on it can look erratic.
- // To make the delta more consistent, we track how much the user has moved since the last
- // delta change and we only update it after it has reached a certain threshold.
- if (changeX > this._config.pointerDirectionChangeThreshold) {
- delta.x = x > positionSinceLastChange.x ? 1 : -1;
- positionSinceLastChange.x = x;
- }
- if (changeY > this._config.pointerDirectionChangeThreshold) {
- delta.y = y > positionSinceLastChange.y ? 1 : -1;
- positionSinceLastChange.y = y;
- }
- return delta;
- }
- /** Toggles the native drag interactions, based on how many handles are registered. */
- _toggleNativeDragInteractions() {
- if (!this._rootElement || !this._handles) {
- return;
- }
- const shouldEnable = this._handles.length > 0 || !this.isDragging();
- if (shouldEnable !== this._nativeInteractionsEnabled) {
- this._nativeInteractionsEnabled = shouldEnable;
- toggleNativeDragInteractions(this._rootElement, shouldEnable);
- }
- }
- /** Removes the manually-added event listeners from the root element. */
- _removeRootElementListeners(element) {
- element.removeEventListener('mousedown', this._pointerDown, activeEventListenerOptions);
- element.removeEventListener('touchstart', this._pointerDown, passiveEventListenerOptions);
- }
- /**
- * Applies a `transform` to the root element, taking into account any existing transforms on it.
- * @param x New transform value along the X axis.
- * @param y New transform value along the Y axis.
- */
- _applyRootElementTransform(x, y) {
- const transform = getTransform(x, y);
- // Cache the previous transform amount only after the first drag sequence, because
- // we don't want our own transforms to stack on top of each other.
- // Should be excluded none because none + translate3d(x, y, x) is invalid css
- if (this._initialTransform == null) {
- this._initialTransform = this._rootElement.style.transform
- && this._rootElement.style.transform != 'none'
- ? this._rootElement.style.transform
- : '';
- }
- // Preserve the previous `transform` value, if there was one. Note that we apply our own
- // transform before the user's, because things like rotation can affect which direction
- // the element will be translated towards.
- this._rootElement.style.transform = combineTransforms(transform, this._initialTransform);
- }
- /**
- * Applies a `transform` to the preview, taking into account any existing transforms on it.
- * @param x New transform value along the X axis.
- * @param y New transform value along the Y axis.
- */
- _applyPreviewTransform(x, y) {
- var _a;
- // Only apply the initial transform if the preview is a clone of the original element, otherwise
- // it could be completely different and the transform might not make sense anymore.
- const initialTransform = ((_a = this._previewTemplate) === null || _a === void 0 ? void 0 : _a.template) ? undefined : this._initialTransform;
- const transform = getTransform(x, y);
- this._preview.style.transform = combineTransforms(transform, initialTransform);
- }
- /**
- * Gets the distance that the user has dragged during the current drag sequence.
- * @param currentPosition Current position of the user's pointer.
- */
- _getDragDistance(currentPosition) {
- const pickupPosition = this._pickupPositionOnPage;
- if (pickupPosition) {
- return { x: currentPosition.x - pickupPosition.x, y: currentPosition.y - pickupPosition.y };
- }
- return { x: 0, y: 0 };
- }
- /** Cleans up any cached element dimensions that we don't need after dragging has stopped. */
- _cleanupCachedDimensions() {
- this._boundaryRect = this._previewRect = undefined;
- this._parentPositions.clear();
- }
- /**
- * Checks whether the element is still inside its boundary after the viewport has been resized.
- * If not, the position is adjusted so that the element fits again.
- */
- _containInsideBoundaryOnResize() {
- let { x, y } = this._passiveTransform;
- if ((x === 0 && y === 0) || this.isDragging() || !this._boundaryElement) {
- return;
- }
- const boundaryRect = this._boundaryElement.getBoundingClientRect();
- const elementRect = this._rootElement.getBoundingClientRect();
- // It's possible that the element got hidden away after dragging (e.g. by switching to a
- // different tab). Don't do anything in this case so we don't clear the user's position.
- if ((boundaryRect.width === 0 && boundaryRect.height === 0) ||
- (elementRect.width === 0 && elementRect.height === 0)) {
- return;
- }
- const leftOverflow = boundaryRect.left - elementRect.left;
- const rightOverflow = elementRect.right - boundaryRect.right;
- const topOverflow = boundaryRect.top - elementRect.top;
- const bottomOverflow = elementRect.bottom - boundaryRect.bottom;
- // If the element has become wider than the boundary, we can't
- // do much to make it fit so we just anchor it to the left.
- if (boundaryRect.width > elementRect.width) {
- if (leftOverflow > 0) {
- x += leftOverflow;
- }
- if (rightOverflow > 0) {
- x -= rightOverflow;
- }
- }
- else {
- x = 0;
- }
- // If the element has become taller than the boundary, we can't
- // do much to make it fit so we just anchor it to the top.
- if (boundaryRect.height > elementRect.height) {
- if (topOverflow > 0) {
- y += topOverflow;
- }
- if (bottomOverflow > 0) {
- y -= bottomOverflow;
- }
- }
- else {
- y = 0;
- }
- if (x !== this._passiveTransform.x || y !== this._passiveTransform.y) {
- this.setFreeDragPosition({ y, x });
- }
- }
- /** Gets the drag start delay, based on the event type. */
- _getDragStartDelay(event) {
- const value = this.dragStartDelay;
- if (typeof value === 'number') {
- return value;
- }
- else if (isTouchEvent(event)) {
- return value.touch;
- }
- return value ? value.mouse : 0;
- }
- /** Updates the internal state of the draggable element when scrolling has occurred. */
- _updateOnScroll(event) {
- const scrollDifference = this._parentPositions.handleScroll(event);
- if (scrollDifference) {
- const target = _getEventTarget(event);
- // ClientRect dimensions are based on the scroll position of the page and its parent node so
- // we have to update the cached boundary ClientRect if the user has scrolled. Check for
- // the `document` specifically since IE doesn't support `contains` on it.
- if (this._boundaryRect && (target === this._document ||
- (target !== this._boundaryElement && target.contains(this._boundaryElement)))) {
- adjustClientRect(this._boundaryRect, scrollDifference.top, scrollDifference.left);
- }
- this._pickupPositionOnPage.x += scrollDifference.left;
- this._pickupPositionOnPage.y += scrollDifference.top;
- // If we're in free drag mode, we have to update the active transform, because
- // it isn't relative to the viewport like the preview inside a drop list.
- if (!this._dropContainer) {
- this._activeTransform.x -= scrollDifference.left;
- this._activeTransform.y -= scrollDifference.top;
- this._applyRootElementTransform(this._activeTransform.x, this._activeTransform.y);
- }
- }
- }
- /** Gets the scroll position of the viewport. */
- _getViewportScrollPosition() {
- const cachedPosition = this._parentPositions.positions.get(this._document);
- return cachedPosition ? cachedPosition.scrollPosition :
- this._viewportRuler.getViewportScrollPosition();
- }
- /**
- * Lazily resolves and returns the shadow root of the element. We do this in a function, rather
- * than saving it in property directly on init, because we want to resolve it as late as possible
- * in order to ensure that the element has been moved into the shadow DOM. Doing it inside the
- * constructor might be too early if the element is inside of something like `ngFor` or `ngIf`.
- */
- _getShadowRoot() {
- if (this._cachedShadowRoot === undefined) {
- this._cachedShadowRoot = _getShadowRoot(this._rootElement);
- }
- return this._cachedShadowRoot;
- }
- /** Gets the element into which the drag preview should be inserted. */
- _getPreviewInsertionPoint(initialParent, shadowRoot) {
- const previewContainer = this._previewContainer || 'global';
- if (previewContainer === 'parent') {
- return initialParent;
- }
- if (previewContainer === 'global') {
- const documentRef = this._document;
- // We can't use the body if the user is in fullscreen mode,
- // because the preview will render under the fullscreen element.
- // TODO(crisbeto): dedupe this with the `FullscreenOverlayContainer` eventually.
- return shadowRoot ||
- documentRef.fullscreenElement ||
- documentRef.webkitFullscreenElement ||
- documentRef.mozFullScreenElement ||
- documentRef.msFullscreenElement ||
- documentRef.body;
- }
- return coerceElement(previewContainer);
- }
-}
-/**
- * Gets a 3d `transform` that can be applied to an element.
- * @param x Desired position of the element along the X axis.
- * @param y Desired position of the element along the Y axis.
- */
-function getTransform(x, y) {
- // Round the transforms since some browsers will
- // blur the elements for sub-pixel transforms.
- return `translate3d(${Math.round(x)}px, ${Math.round(y)}px, 0)`;
-}
-/** Clamps a value between a minimum and a maximum. */
-function clamp$1(value, min, max) {
- return Math.max(min, Math.min(max, value));
-}
-/**
- * Helper to remove a node from the DOM and to do all the necessary null checks.
- * @param node Node to be removed.
- */
-function removeNode(node) {
- if (node && node.parentNode) {
- node.parentNode.removeChild(node);
- }
-}
-/** Determines whether an event is a touch event. */
-function isTouchEvent(event) {
- // This function is called for every pixel that the user has dragged so we need it to be
- // as fast as possible. Since we only bind mouse events and touch events, we can assume
- // that if the event's name starts with `t`, it's a touch event.
- return event.type[0] === 't';
-}
-/**
- * Gets the root HTML element of an embedded view.
- * If the root is not an HTML element it gets wrapped in one.
- */
-function getRootNode(viewRef, _document) {
- const rootNodes = viewRef.rootNodes;
- if (rootNodes.length === 1 && rootNodes[0].nodeType === _document.ELEMENT_NODE) {
- return rootNodes[0];
- }
- const wrapper = _document.createElement('div');
- rootNodes.forEach(node => wrapper.appendChild(node));
- return wrapper;
-}
-/**
- * Matches the target element's size to the source's size.
- * @param target Element that needs to be resized.
- * @param sourceRect Dimensions of the source element.
- */
-function matchElementSize(target, sourceRect) {
- target.style.width = `${sourceRect.width}px`;
- target.style.height = `${sourceRect.height}px`;
- target.style.transform = getTransform(sourceRect.left, sourceRect.top);
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Moves an item one index in an array to another.
- * @param array Array in which to move the item.
- * @param fromIndex Starting index of the item.
- * @param toIndex Index to which the item should be moved.
- */
-function moveItemInArray(array, fromIndex, toIndex) {
- const from = clamp(fromIndex, array.length - 1);
- const to = clamp(toIndex, array.length - 1);
- if (from === to) {
- return;
- }
- const target = array[from];
- const delta = to < from ? -1 : 1;
- for (let i = from; i !== to; i += delta) {
- array[i] = array[i + delta];
- }
- array[to] = target;
-}
-/**
- * Moves an item from one array to another.
- * @param currentArray Array from which to transfer the item.
- * @param targetArray Array into which to put the item.
- * @param currentIndex Index of the item in its current array.
- * @param targetIndex Index at which to insert the item.
- */
-function transferArrayItem(currentArray, targetArray, currentIndex, targetIndex) {
- const from = clamp(currentIndex, currentArray.length - 1);
- const to = clamp(targetIndex, targetArray.length);
- if (currentArray.length) {
- targetArray.splice(to, 0, currentArray.splice(from, 1)[0]);
- }
-}
-/**
- * Copies an item from one array to another, leaving it in its
- * original position in current array.
- * @param currentArray Array from which to copy the item.
- * @param targetArray Array into which is copy the item.
- * @param currentIndex Index of the item in its current array.
- * @param targetIndex Index at which to insert the item.
- *
- */
-function copyArrayItem(currentArray, targetArray, currentIndex, targetIndex) {
- const to = clamp(targetIndex, targetArray.length);
- if (currentArray.length) {
- targetArray.splice(to, 0, currentArray[currentIndex]);
- }
-}
-/** Clamps a number between zero and a maximum. */
-function clamp(value, max) {
- return Math.max(0, Math.min(max, value));
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Proximity, as a ratio to width/height, at which a
- * dragged item will affect the drop container.
- */
-const DROP_PROXIMITY_THRESHOLD = 0.05;
-/**
- * Proximity, as a ratio to width/height at which to start auto-scrolling the drop list or the
- * viewport. The value comes from trying it out manually until it feels right.
- */
-const SCROLL_PROXIMITY_THRESHOLD = 0.05;
-/**
- * Reference to a drop list. Used to manipulate or dispose of the container.
- */
-class DropListRef {
- constructor(element, _dragDropRegistry, _document, _ngZone, _viewportRuler) {
- this._dragDropRegistry = _dragDropRegistry;
- this._ngZone = _ngZone;
- this._viewportRuler = _viewportRuler;
- /** Whether starting a dragging sequence from this container is disabled. */
- this.disabled = false;
- /** Whether sorting items within the list is disabled. */
- this.sortingDisabled = false;
- /**
- * Whether auto-scrolling the view when the user
- * moves their pointer close to the edges is disabled.
- */
- this.autoScrollDisabled = false;
- /** Number of pixels to scroll for each frame when auto-scrolling an element. */
- this.autoScrollStep = 2;
- /**
- * Function that is used to determine whether an item
- * is allowed to be moved into a drop container.
- */
- this.enterPredicate = () => true;
- /** Functions that is used to determine whether an item can be sorted into a particular index. */
- this.sortPredicate = () => true;
- /** Emits right before dragging has started. */
- this.beforeStarted = new Subject();
- /**
- * Emits when the user has moved a new drag item into this container.
- */
- this.entered = new Subject();
- /**
- * Emits when the user removes an item from the container
- * by dragging it into another container.
- */
- this.exited = new Subject();
- /** Emits when the user drops an item inside the container. */
- this.dropped = new Subject();
- /** Emits as the user is swapping items while actively dragging. */
- this.sorted = new Subject();
- /** Whether an item in the list is being dragged. */
- this._isDragging = false;
- /** Cache of the dimensions of all the items inside the container. */
- this._itemPositions = [];
- /**
- * Keeps track of the item that was last swapped with the dragged item, as well as what direction
- * the pointer was moving in when the swap occured and whether the user's pointer continued to
- * overlap with the swapped item after the swapping occurred.
- */
- this._previousSwap = { drag: null, delta: 0, overlaps: false };
- /** Draggable items in the container. */
- this._draggables = [];
- /** Drop lists that are connected to the current one. */
- this._siblings = [];
- /** Direction in which the list is oriented. */
- this._orientation = 'vertical';
- /** Connected siblings that currently have a dragged item. */
- this._activeSiblings = new Set();
- /** Layout direction of the drop list. */
- this._direction = 'ltr';
- /** Subscription to the window being scrolled. */
- this._viewportScrollSubscription = Subscription.EMPTY;
- /** Vertical direction in which the list is currently scrolling. */
- this._verticalScrollDirection = 0 /* NONE */;
- /** Horizontal direction in which the list is currently scrolling. */
- this._horizontalScrollDirection = 0 /* NONE */;
- /** Used to signal to the current auto-scroll sequence when to stop. */
- this._stopScrollTimers = new Subject();
- /** Shadow root of the current element. Necessary for `elementFromPoint` to resolve correctly. */
- this._cachedShadowRoot = null;
- /** Starts the interval that'll auto-scroll the element. */
- this._startScrollInterval = () => {
- this._stopScrolling();
- interval(0, animationFrameScheduler)
- .pipe(takeUntil(this._stopScrollTimers))
- .subscribe(() => {
- const node = this._scrollNode;
- const scrollStep = this.autoScrollStep;
- if (this._verticalScrollDirection === 1 /* UP */) {
- incrementVerticalScroll(node, -scrollStep);
- }
- else if (this._verticalScrollDirection === 2 /* DOWN */) {
- incrementVerticalScroll(node, scrollStep);
- }
- if (this._horizontalScrollDirection === 1 /* LEFT */) {
- incrementHorizontalScroll(node, -scrollStep);
- }
- else if (this._horizontalScrollDirection === 2 /* RIGHT */) {
- incrementHorizontalScroll(node, scrollStep);
- }
- });
- };
- this.element = coerceElement(element);
- this._document = _document;
- this.withScrollableParents([this.element]);
- _dragDropRegistry.registerDropContainer(this);
- this._parentPositions = new ParentPositionTracker(_document, _viewportRuler);
- }
- /** Removes the drop list functionality from the DOM element. */
- dispose() {
- this._stopScrolling();
- this._stopScrollTimers.complete();
- this._viewportScrollSubscription.unsubscribe();
- this.beforeStarted.complete();
- this.entered.complete();
- this.exited.complete();
- this.dropped.complete();
- this.sorted.complete();
- this._activeSiblings.clear();
- this._scrollNode = null;
- this._parentPositions.clear();
- this._dragDropRegistry.removeDropContainer(this);
- }
- /** Whether an item from this list is currently being dragged. */
- isDragging() {
- return this._isDragging;
- }
- /** Starts dragging an item. */
- start() {
- this._draggingStarted();
- this._notifyReceivingSiblings();
- }
- /**
- * Emits an event to indicate that the user moved an item into the container.
- * @param item Item that was moved into the container.
- * @param pointerX Position of the item along the X axis.
- * @param pointerY Position of the item along the Y axis.
- * @param index Index at which the item entered. If omitted, the container will try to figure it
- * out automatically.
- */
- enter(item, pointerX, pointerY, index) {
- this._draggingStarted();
- // If sorting is disabled, we want the item to return to its starting
- // position if the user is returning it to its initial container.
- let newIndex;
- if (index == null) {
- newIndex = this.sortingDisabled ? this._draggables.indexOf(item) : -1;
- if (newIndex === -1) {
- // We use the coordinates of where the item entered the drop
- // zone to figure out at which index it should be inserted.
- newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY);
- }
- }
- else {
- newIndex = index;
- }
- const activeDraggables = this._activeDraggables;
- const currentIndex = activeDraggables.indexOf(item);
- const placeholder = item.getPlaceholderElement();
- let newPositionReference = activeDraggables[newIndex];
- // If the item at the new position is the same as the item that is being dragged,
- // it means that we're trying to restore the item to its initial position. In this
- // case we should use the next item from the list as the reference.
- if (newPositionReference === item) {
- newPositionReference = activeDraggables[newIndex + 1];
- }
- // Since the item may be in the `activeDraggables` already (e.g. if the user dragged it
- // into another container and back again), we have to ensure that it isn't duplicated.
- if (currentIndex > -1) {
- activeDraggables.splice(currentIndex, 1);
- }
- // Don't use items that are being dragged as a reference, because
- // their element has been moved down to the bottom of the body.
- if (newPositionReference && !this._dragDropRegistry.isDragging(newPositionReference)) {
- const element = newPositionReference.getRootElement();
- element.parentElement.insertBefore(placeholder, element);
- activeDraggables.splice(newIndex, 0, item);
- }
- else if (this._shouldEnterAsFirstChild(pointerX, pointerY)) {
- const reference = activeDraggables[0].getRootElement();
- reference.parentNode.insertBefore(placeholder, reference);
- activeDraggables.unshift(item);
- }
- else {
- coerceElement(this.element).appendChild(placeholder);
- activeDraggables.push(item);
- }
- // The transform needs to be cleared so it doesn't throw off the measurements.
- placeholder.style.transform = '';
- // Note that the positions were already cached when we called `start` above,
- // but we need to refresh them since the amount of items has changed and also parent rects.
- this._cacheItemPositions();
- this._cacheParentPositions();
- // Notify siblings at the end so that the item has been inserted into the `activeDraggables`.
- this._notifyReceivingSiblings();
- this.entered.next({ item, container: this, currentIndex: this.getItemIndex(item) });
- }
- /**
- * Removes an item from the container after it was dragged into another container by the user.
- * @param item Item that was dragged out.
- */
- exit(item) {
- this._reset();
- this.exited.next({ item, container: this });
- }
- /**
- * Drops an item into this container.
- * @param item Item being dropped into the container.
- * @param currentIndex Index at which the item should be inserted.
- * @param previousIndex Index of the item when dragging started.
- * @param previousContainer Container from which the item got dragged in.
- * @param isPointerOverContainer Whether the user's pointer was over the
- * container when the item was dropped.
- * @param distance Distance the user has dragged since the start of the dragging sequence.
- */
- drop(item, currentIndex, previousIndex, previousContainer, isPointerOverContainer, distance, dropPoint) {
- this._reset();
- this.dropped.next({
- item,
- currentIndex,
- previousIndex,
- container: this,
- previousContainer,
- isPointerOverContainer,
- distance,
- dropPoint
- });
- }
- /**
- * Sets the draggable items that are a part of this list.
- * @param items Items that are a part of this list.
- */
- withItems(items) {
- const previousItems = this._draggables;
- this._draggables = items;
- items.forEach(item => item._withDropContainer(this));
- if (this.isDragging()) {
- const draggedItems = previousItems.filter(item => item.isDragging());
- // If all of the items being dragged were removed
- // from the list, abort the current drag sequence.
- if (draggedItems.every(item => items.indexOf(item) === -1)) {
- this._reset();
- }
- else {
- this._cacheItems();
- }
- }
- return this;
- }
- /** Sets the layout direction of the drop list. */
- withDirection(direction) {
- this._direction = direction;
- return this;
- }
- /**
- * Sets the containers that are connected to this one. When two or more containers are
- * connected, the user will be allowed to transfer items between them.
- * @param connectedTo Other containers that the current containers should be connected to.
- */
- connectedTo(connectedTo) {
- this._siblings = connectedTo.slice();
- return this;
- }
- /**
- * Sets the orientation of the container.
- * @param orientation New orientation for the container.
- */
- withOrientation(orientation) {
- this._orientation = orientation;
- return this;
- }
- /**
- * Sets which parent elements are can be scrolled while the user is dragging.
- * @param elements Elements that can be scrolled.
- */
- withScrollableParents(elements) {
- const element = coerceElement(this.element);
- // We always allow the current element to be scrollable
- // so we need to ensure that it's in the array.
- this._scrollableElements =
- elements.indexOf(element) === -1 ? [element, ...elements] : elements.slice();
- return this;
- }
- /** Gets the scrollable parents that are registered with this drop container. */
- getScrollableParents() {
- return this._scrollableElements;
- }
- /**
- * Figures out the index of an item in the container.
- * @param item Item whose index should be determined.
- */
- getItemIndex(item) {
- if (!this._isDragging) {
- return this._draggables.indexOf(item);
- }
- // Items are sorted always by top/left in the cache, however they flow differently in RTL.
- // The rest of the logic still stands no matter what orientation we're in, however
- // we need to invert the array when determining the index.
- const items = this._orientation === 'horizontal' && this._direction === 'rtl' ?
- this._itemPositions.slice().reverse() : this._itemPositions;
- return findIndex(items, currentItem => currentItem.drag === item);
- }
- /**
- * Whether the list is able to receive the item that
- * is currently being dragged inside a connected drop list.
- */
- isReceiving() {
- return this._activeSiblings.size > 0;
- }
- /**
- * Sorts an item inside the container based on its position.
- * @param item Item to be sorted.
- * @param pointerX Position of the item along the X axis.
- * @param pointerY Position of the item along the Y axis.
- * @param pointerDelta Direction in which the pointer is moving along each axis.
- */
- _sortItem(item, pointerX, pointerY, pointerDelta) {
- // Don't sort the item if sorting is disabled or it's out of range.
- if (this.sortingDisabled || !this._clientRect ||
- !isPointerNearClientRect(this._clientRect, DROP_PROXIMITY_THRESHOLD, pointerX, pointerY)) {
- return;
- }
- const siblings = this._itemPositions;
- const newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY, pointerDelta);
- if (newIndex === -1 && siblings.length > 0) {
- return;
- }
- const isHorizontal = this._orientation === 'horizontal';
- const currentIndex = findIndex(siblings, currentItem => currentItem.drag === item);
- const siblingAtNewPosition = siblings[newIndex];
- const currentPosition = siblings[currentIndex].clientRect;
- const newPosition = siblingAtNewPosition.clientRect;
- const delta = currentIndex > newIndex ? 1 : -1;
- // How many pixels the item's placeholder should be offset.
- const itemOffset = this._getItemOffsetPx(currentPosition, newPosition, delta);
- // How many pixels all the other items should be offset.
- const siblingOffset = this._getSiblingOffsetPx(currentIndex, siblings, delta);
- // Save the previous order of the items before moving the item to its new index.
- // We use this to check whether an item has been moved as a result of the sorting.
- const oldOrder = siblings.slice();
- // Shuffle the array in place.
- moveItemInArray(siblings, currentIndex, newIndex);
- this.sorted.next({
- previousIndex: currentIndex,
- currentIndex: newIndex,
- container: this,
- item
- });
- siblings.forEach((sibling, index) => {
- // Don't do anything if the position hasn't changed.
- if (oldOrder[index] === sibling) {
- return;
- }
- const isDraggedItem = sibling.drag === item;
- const offset = isDraggedItem ? itemOffset : siblingOffset;
- const elementToOffset = isDraggedItem ? item.getPlaceholderElement() :
- sibling.drag.getRootElement();
- // Update the offset to reflect the new position.
- sibling.offset += offset;
- // Since we're moving the items with a `transform`, we need to adjust their cached
- // client rects to reflect their new position, as well as swap their positions in the cache.
- // Note that we shouldn't use `getBoundingClientRect` here to update the cache, because the
- // elements may be mid-animation which will give us a wrong result.
- if (isHorizontal) {
- // Round the transforms since some browsers will
- // blur the elements, for sub-pixel transforms.
- elementToOffset.style.transform = combineTransforms(`translate3d(${Math.round(sibling.offset)}px, 0, 0)`, sibling.initialTransform);
- adjustClientRect(sibling.clientRect, 0, offset);
- }
- else {
- elementToOffset.style.transform = combineTransforms(`translate3d(0, ${Math.round(sibling.offset)}px, 0)`, sibling.initialTransform);
- adjustClientRect(sibling.clientRect, offset, 0);
- }
- });
- // Note that it's important that we do this after the client rects have been adjusted.
- this._previousSwap.overlaps = isInsideClientRect(newPosition, pointerX, pointerY);
- this._previousSwap.drag = siblingAtNewPosition.drag;
- this._previousSwap.delta = isHorizontal ? pointerDelta.x : pointerDelta.y;
- }
- /**
- * Checks whether the user's pointer is close to the edges of either the
- * viewport or the drop list and starts the auto-scroll sequence.
- * @param pointerX User's pointer position along the x axis.
- * @param pointerY User's pointer position along the y axis.
- */
- _startScrollingIfNecessary(pointerX, pointerY) {
- if (this.autoScrollDisabled) {
- return;
- }
- let scrollNode;
- let verticalScrollDirection = 0 /* NONE */;
- let horizontalScrollDirection = 0 /* NONE */;
- // Check whether we should start scrolling any of the parent containers.
- this._parentPositions.positions.forEach((position, element) => {
- // We have special handling for the `document` below. Also this would be
- // nicer with a for...of loop, but it requires changing a compiler flag.
- if (element === this._document || !position.clientRect || scrollNode) {
- return;
- }
- if (isPointerNearClientRect(position.clientRect, DROP_PROXIMITY_THRESHOLD, pointerX, pointerY)) {
- [verticalScrollDirection, horizontalScrollDirection] = getElementScrollDirections(element, position.clientRect, pointerX, pointerY);
- if (verticalScrollDirection || horizontalScrollDirection) {
- scrollNode = element;
- }
- }
- });
- // Otherwise check if we can start scrolling the viewport.
- if (!verticalScrollDirection && !horizontalScrollDirection) {
- const { width, height } = this._viewportRuler.getViewportSize();
- const clientRect = { width, height, top: 0, right: width, bottom: height, left: 0 };
- verticalScrollDirection = getVerticalScrollDirection(clientRect, pointerY);
- horizontalScrollDirection = getHorizontalScrollDirection(clientRect, pointerX);
- scrollNode = window;
- }
- if (scrollNode && (verticalScrollDirection !== this._verticalScrollDirection ||
- horizontalScrollDirection !== this._horizontalScrollDirection ||
- scrollNode !== this._scrollNode)) {
- this._verticalScrollDirection = verticalScrollDirection;
- this._horizontalScrollDirection = horizontalScrollDirection;
- this._scrollNode = scrollNode;
- if ((verticalScrollDirection || horizontalScrollDirection) && scrollNode) {
- this._ngZone.runOutsideAngular(this._startScrollInterval);
- }
- else {
- this._stopScrolling();
- }
- }
- }
- /** Stops any currently-running auto-scroll sequences. */
- _stopScrolling() {
- this._stopScrollTimers.next();
- }
- /** Starts the dragging sequence within the list. */
- _draggingStarted() {
- const styles = coerceElement(this.element).style;
- this.beforeStarted.next();
- this._isDragging = true;
- // We need to disable scroll snapping while the user is dragging, because it breaks automatic
- // scrolling. The browser seems to round the value based on the snapping points which means
- // that we can't increment/decrement the scroll position.
- this._initialScrollSnap = styles.msScrollSnapType || styles.scrollSnapType || '';
- styles.scrollSnapType = styles.msScrollSnapType = 'none';
- this._cacheItems();
- this._viewportScrollSubscription.unsubscribe();
- this._listenToScrollEvents();
- }
- /** Caches the positions of the configured scrollable parents. */
- _cacheParentPositions() {
- const element = coerceElement(this.element);
- this._parentPositions.cache(this._scrollableElements);
- // The list element is always in the `scrollableElements`
- // so we can take advantage of the cached `ClientRect`.
- this._clientRect = this._parentPositions.positions.get(element).clientRect;
- }
- /** Refreshes the position cache of the items and sibling containers. */
- _cacheItemPositions() {
- const isHorizontal = this._orientation === 'horizontal';
- this._itemPositions = this._activeDraggables.map(drag => {
- const elementToMeasure = drag.getVisibleElement();
- return {
- drag,
- offset: 0,
- initialTransform: elementToMeasure.style.transform || '',
- clientRect: getMutableClientRect(elementToMeasure),
- };
- }).sort((a, b) => {
- return isHorizontal ? a.clientRect.left - b.clientRect.left :
- a.clientRect.top - b.clientRect.top;
- });
- }
- /** Resets the container to its initial state. */
- _reset() {
- this._isDragging = false;
- const styles = coerceElement(this.element).style;
- styles.scrollSnapType = styles.msScrollSnapType = this._initialScrollSnap;
- // TODO(crisbeto): may have to wait for the animations to finish.
- this._activeDraggables.forEach(item => {
- var _a;
- const rootElement = item.getRootElement();
- if (rootElement) {
- const initialTransform = (_a = this._itemPositions
- .find(current => current.drag === item)) === null || _a === void 0 ? void 0 : _a.initialTransform;
- rootElement.style.transform = initialTransform || '';
- }
- });
- this._siblings.forEach(sibling => sibling._stopReceiving(this));
- this._activeDraggables = [];
- this._itemPositions = [];
- this._previousSwap.drag = null;
- this._previousSwap.delta = 0;
- this._previousSwap.overlaps = false;
- this._stopScrolling();
- this._viewportScrollSubscription.unsubscribe();
- this._parentPositions.clear();
- }
- /**
- * Gets the offset in pixels by which the items that aren't being dragged should be moved.
- * @param currentIndex Index of the item currently being dragged.
- * @param siblings All of the items in the list.
- * @param delta Direction in which the user is moving.
- */
- _getSiblingOffsetPx(currentIndex, siblings, delta) {
- const isHorizontal = this._orientation === 'horizontal';
- const currentPosition = siblings[currentIndex].clientRect;
- const immediateSibling = siblings[currentIndex + delta * -1];
- let siblingOffset = currentPosition[isHorizontal ? 'width' : 'height'] * delta;
- if (immediateSibling) {
- const start = isHorizontal ? 'left' : 'top';
- const end = isHorizontal ? 'right' : 'bottom';
- // Get the spacing between the start of the current item and the end of the one immediately
- // after it in the direction in which the user is dragging, or vice versa. We add it to the
- // offset in order to push the element to where it will be when it's inline and is influenced
- // by the `margin` of its siblings.
- if (delta === -1) {
- siblingOffset -= immediateSibling.clientRect[start] - currentPosition[end];
- }
- else {
- siblingOffset += currentPosition[start] - immediateSibling.clientRect[end];
- }
- }
- return siblingOffset;
- }
- /**
- * Gets the offset in pixels by which the item that is being dragged should be moved.
- * @param currentPosition Current position of the item.
- * @param newPosition Position of the item where the current item should be moved.
- * @param delta Direction in which the user is moving.
- */
- _getItemOffsetPx(currentPosition, newPosition, delta) {
- const isHorizontal = this._orientation === 'horizontal';
- let itemOffset = isHorizontal ? newPosition.left - currentPosition.left :
- newPosition.top - currentPosition.top;
- // Account for differences in the item width/height.
- if (delta === -1) {
- itemOffset += isHorizontal ? newPosition.width - currentPosition.width :
- newPosition.height - currentPosition.height;
- }
- return itemOffset;
- }
- /**
- * Checks if pointer is entering in the first position
- * @param pointerX Position of the user's pointer along the X axis.
- * @param pointerY Position of the user's pointer along the Y axis.
- */
- _shouldEnterAsFirstChild(pointerX, pointerY) {
- if (!this._activeDraggables.length) {
- return false;
- }
- const itemPositions = this._itemPositions;
- const isHorizontal = this._orientation === 'horizontal';
- // `itemPositions` are sorted by position while `activeDraggables` are sorted by child index
- // check if container is using some sort of "reverse" ordering (eg: flex-direction: row-reverse)
- const reversed = itemPositions[0].drag !== this._activeDraggables[0];
- if (reversed) {
- const lastItemRect = itemPositions[itemPositions.length - 1].clientRect;
- return isHorizontal ? pointerX >= lastItemRect.right : pointerY >= lastItemRect.bottom;
- }
- else {
- const firstItemRect = itemPositions[0].clientRect;
- return isHorizontal ? pointerX <= firstItemRect.left : pointerY <= firstItemRect.top;
- }
- }
- /**
- * Gets the index of an item in the drop container, based on the position of the user's pointer.
- * @param item Item that is being sorted.
- * @param pointerX Position of the user's pointer along the X axis.
- * @param pointerY Position of the user's pointer along the Y axis.
- * @param delta Direction in which the user is moving their pointer.
- */
- _getItemIndexFromPointerPosition(item, pointerX, pointerY, delta) {
- const isHorizontal = this._orientation === 'horizontal';
- const index = findIndex(this._itemPositions, ({ drag, clientRect }, _, array) => {
- if (drag === item) {
- // If there's only one item left in the container, it must be
- // the dragged item itself so we use it as a reference.
- return array.length < 2;
- }
- if (delta) {
- const direction = isHorizontal ? delta.x : delta.y;
- // If the user is still hovering over the same item as last time, their cursor hasn't left
- // the item after we made the swap, and they didn't change the direction in which they're
- // dragging, we don't consider it a direction swap.
- if (drag === this._previousSwap.drag && this._previousSwap.overlaps &&
- direction === this._previousSwap.delta) {
- return false;
- }
- }
- return isHorizontal ?
- // Round these down since most browsers report client rects with
- // sub-pixel precision, whereas the pointer coordinates are rounded to pixels.
- pointerX >= Math.floor(clientRect.left) && pointerX < Math.floor(clientRect.right) :
- pointerY >= Math.floor(clientRect.top) && pointerY < Math.floor(clientRect.bottom);
- });
- return (index === -1 || !this.sortPredicate(index, item, this)) ? -1 : index;
- }
- /** Caches the current items in the list and their positions. */
- _cacheItems() {
- this._activeDraggables = this._draggables.slice();
- this._cacheItemPositions();
- this._cacheParentPositions();
- }
- /**
- * Checks whether the user's pointer is positioned over the container.
- * @param x Pointer position along the X axis.
- * @param y Pointer position along the Y axis.
- */
- _isOverContainer(x, y) {
- return this._clientRect != null && isInsideClientRect(this._clientRect, x, y);
- }
- /**
- * Figures out whether an item should be moved into a sibling
- * drop container, based on its current position.
- * @param item Drag item that is being moved.
- * @param x Position of the item along the X axis.
- * @param y Position of the item along the Y axis.
- */
- _getSiblingContainerFromPosition(item, x, y) {
- return this._siblings.find(sibling => sibling._canReceive(item, x, y));
- }
- /**
- * Checks whether the drop list can receive the passed-in item.
- * @param item Item that is being dragged into the list.
- * @param x Position of the item along the X axis.
- * @param y Position of the item along the Y axis.
- */
- _canReceive(item, x, y) {
- if (!this._clientRect || !isInsideClientRect(this._clientRect, x, y) ||
- !this.enterPredicate(item, this)) {
- return false;
- }
- const elementFromPoint = this._getShadowRoot().elementFromPoint(x, y);
- // If there's no element at the pointer position, then
- // the client rect is probably scrolled out of the view.
- if (!elementFromPoint) {
- return false;
- }
- const nativeElement = coerceElement(this.element);
- // The `ClientRect`, that we're using to find the container over which the user is
- // hovering, doesn't give us any information on whether the element has been scrolled
- // out of the view or whether it's overlapping with other containers. This means that
- // we could end up transferring the item into a container that's invisible or is positioned
- // below another one. We use the result from `elementFromPoint` to get the top-most element
- // at the pointer position and to find whether it's one of the intersecting drop containers.
- return elementFromPoint === nativeElement || nativeElement.contains(elementFromPoint);
- }
- /**
- * Called by one of the connected drop lists when a dragging sequence has started.
- * @param sibling Sibling in which dragging has started.
- */
- _startReceiving(sibling, items) {
- const activeSiblings = this._activeSiblings;
- if (!activeSiblings.has(sibling) && items.every(item => {
- // Note that we have to add an exception to the `enterPredicate` for items that started off
- // in this drop list. The drag ref has logic that allows an item to return to its initial
- // container, if it has left the initial container and none of the connected containers
- // allow it to enter. See `DragRef._updateActiveDropContainer` for more context.
- return this.enterPredicate(item, this) || this._draggables.indexOf(item) > -1;
- })) {
- activeSiblings.add(sibling);
- this._cacheParentPositions();
- this._listenToScrollEvents();
- }
- }
- /**
- * Called by a connected drop list when dragging has stopped.
- * @param sibling Sibling whose dragging has stopped.
- */
- _stopReceiving(sibling) {
- this._activeSiblings.delete(sibling);
- this._viewportScrollSubscription.unsubscribe();
- }
- /**
- * Starts listening to scroll events on the viewport.
- * Used for updating the internal state of the list.
- */
- _listenToScrollEvents() {
- this._viewportScrollSubscription = this._dragDropRegistry
- .scrolled(this._getShadowRoot())
- .subscribe(event => {
- if (this.isDragging()) {
- const scrollDifference = this._parentPositions.handleScroll(event);
- if (scrollDifference) {
- // Since we know the amount that the user has scrolled we can shift all of the
- // client rectangles ourselves. This is cheaper than re-measuring everything and
- // we can avoid inconsistent behavior where we might be measuring the element before
- // its position has changed.
- this._itemPositions.forEach(({ clientRect }) => {
- adjustClientRect(clientRect, scrollDifference.top, scrollDifference.left);
- });
- // We need two loops for this, because we want all of the cached
- // positions to be up-to-date before we re-sort the item.
- this._itemPositions.forEach(({ drag }) => {
- if (this._dragDropRegistry.isDragging(drag)) {
- // We need to re-sort the item manually, because the pointer move
- // events won't be dispatched while the user is scrolling.
- drag._sortFromLastPointerPosition();
- }
- });
- }
- }
- else if (this.isReceiving()) {
- this._cacheParentPositions();
- }
- });
- }
- /**
- * Lazily resolves and returns the shadow root of the element. We do this in a function, rather
- * than saving it in property directly on init, because we want to resolve it as late as possible
- * in order to ensure that the element has been moved into the shadow DOM. Doing it inside the
- * constructor might be too early if the element is inside of something like `ngFor` or `ngIf`.
- */
- _getShadowRoot() {
- if (!this._cachedShadowRoot) {
- const shadowRoot = _getShadowRoot(coerceElement(this.element));
- this._cachedShadowRoot = shadowRoot || this._document;
- }
- return this._cachedShadowRoot;
- }
- /** Notifies any siblings that may potentially receive the item. */
- _notifyReceivingSiblings() {
- const draggedItems = this._activeDraggables.filter(item => item.isDragging());
- this._siblings.forEach(sibling => sibling._startReceiving(this, draggedItems));
- }
-}
-/**
- * Finds the index of an item that matches a predicate function. Used as an equivalent
- * of `Array.prototype.findIndex` which isn't part of the standard Google typings.
- * @param array Array in which to look for matches.
- * @param predicate Function used to determine whether an item is a match.
- */
-function findIndex(array, predicate) {
- for (let i = 0; i < array.length; i++) {
- if (predicate(array[i], i, array)) {
- return i;
- }
- }
- return -1;
-}
-/**
- * Increments the vertical scroll position of a node.
- * @param node Node whose scroll position should change.
- * @param amount Amount of pixels that the `node` should be scrolled.
- */
-function incrementVerticalScroll(node, amount) {
- if (node === window) {
- node.scrollBy(0, amount);
- }
- else {
- // Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.
- node.scrollTop += amount;
- }
-}
-/**
- * Increments the horizontal scroll position of a node.
- * @param node Node whose scroll position should change.
- * @param amount Amount of pixels that the `node` should be scrolled.
- */
-function incrementHorizontalScroll(node, amount) {
- if (node === window) {
- node.scrollBy(amount, 0);
- }
- else {
- // Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.
- node.scrollLeft += amount;
- }
-}
-/**
- * Gets whether the vertical auto-scroll direction of a node.
- * @param clientRect Dimensions of the node.
- * @param pointerY Position of the user's pointer along the y axis.
- */
-function getVerticalScrollDirection(clientRect, pointerY) {
- const { top, bottom, height } = clientRect;
- const yThreshold = height * SCROLL_PROXIMITY_THRESHOLD;
- if (pointerY >= top - yThreshold && pointerY <= top + yThreshold) {
- return 1 /* UP */;
- }
- else if (pointerY >= bottom - yThreshold && pointerY <= bottom + yThreshold) {
- return 2 /* DOWN */;
- }
- return 0 /* NONE */;
-}
-/**
- * Gets whether the horizontal auto-scroll direction of a node.
- * @param clientRect Dimensions of the node.
- * @param pointerX Position of the user's pointer along the x axis.
- */
-function getHorizontalScrollDirection(clientRect, pointerX) {
- const { left, right, width } = clientRect;
- const xThreshold = width * SCROLL_PROXIMITY_THRESHOLD;
- if (pointerX >= left - xThreshold && pointerX <= left + xThreshold) {
- return 1 /* LEFT */;
- }
- else if (pointerX >= right - xThreshold && pointerX <= right + xThreshold) {
- return 2 /* RIGHT */;
- }
- return 0 /* NONE */;
-}
-/**
- * Gets the directions in which an element node should be scrolled,
- * assuming that the user's pointer is already within it scrollable region.
- * @param element Element for which we should calculate the scroll direction.
- * @param clientRect Bounding client rectangle of the element.
- * @param pointerX Position of the user's pointer along the x axis.
- * @param pointerY Position of the user's pointer along the y axis.
- */
-function getElementScrollDirections(element, clientRect, pointerX, pointerY) {
- const computedVertical = getVerticalScrollDirection(clientRect, pointerY);
- const computedHorizontal = getHorizontalScrollDirection(clientRect, pointerX);
- let verticalScrollDirection = 0 /* NONE */;
- let horizontalScrollDirection = 0 /* NONE */;
- // Note that we here we do some extra checks for whether the element is actually scrollable in
- // a certain direction and we only assign the scroll direction if it is. We do this so that we
- // can allow other elements to be scrolled, if the current element can't be scrolled anymore.
- // This allows us to handle cases where the scroll regions of two scrollable elements overlap.
- if (computedVertical) {
- const scrollTop = element.scrollTop;
- if (computedVertical === 1 /* UP */) {
- if (scrollTop > 0) {
- verticalScrollDirection = 1 /* UP */;
- }
- }
- else if (element.scrollHeight - scrollTop > element.clientHeight) {
- verticalScrollDirection = 2 /* DOWN */;
- }
- }
- if (computedHorizontal) {
- const scrollLeft = element.scrollLeft;
- if (computedHorizontal === 1 /* LEFT */) {
- if (scrollLeft > 0) {
- horizontalScrollDirection = 1 /* LEFT */;
- }
- }
- else if (element.scrollWidth - scrollLeft > element.clientWidth) {
- horizontalScrollDirection = 2 /* RIGHT */;
- }
- }
- return [verticalScrollDirection, horizontalScrollDirection];
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Event options that can be used to bind an active, capturing event. */
-const activeCapturingEventOptions = normalizePassiveListenerOptions({
- passive: false,
- capture: true
-});
-/**
- * Service that keeps track of all the drag item and drop container
- * instances, and manages global event listeners on the `document`.
- * @docs-private
- */
-// Note: this class is generic, rather than referencing CdkDrag and CdkDropList directly, in order
-// to avoid circular imports. If we were to reference them here, importing the registry into the
-// classes that are registering themselves will introduce a circular import.
-class DragDropRegistry {
- constructor(_ngZone, _document) {
- this._ngZone = _ngZone;
- /** Registered drop container instances. */
- this._dropInstances = new Set();
- /** Registered drag item instances. */
- this._dragInstances = new Set();
- /** Drag item instances that are currently being dragged. */
- this._activeDragInstances = [];
- /** Keeps track of the event listeners that we've bound to the `document`. */
- this._globalListeners = new Map();
- /**
- * Predicate function to check if an item is being dragged. Moved out into a property,
- * because it'll be called a lot and we don't want to create a new function every time.
- */
- this._draggingPredicate = (item) => item.isDragging();
- /**
- * Emits the `touchmove` or `mousemove` events that are dispatched
- * while the user is dragging a drag item instance.
- */
- this.pointerMove = new Subject();
- /**
- * Emits the `touchend` or `mouseup` events that are dispatched
- * while the user is dragging a drag item instance.
- */
- this.pointerUp = new Subject();
- /**
- * Emits when the viewport has been scrolled while the user is dragging an item.
- * @deprecated To be turned into a private member. Use the `scrolled` method instead.
- * @breaking-change 13.0.0
- */
- this.scroll = new Subject();
- /**
- * Event listener that will prevent the default browser action while the user is dragging.
- * @param event Event whose default action should be prevented.
- */
- this._preventDefaultWhileDragging = (event) => {
- if (this._activeDragInstances.length > 0) {
- event.preventDefault();
- }
- };
- /** Event listener for `touchmove` that is bound even if no dragging is happening. */
- this._persistentTouchmoveListener = (event) => {
- if (this._activeDragInstances.length > 0) {
- // Note that we only want to prevent the default action after dragging has actually started.
- // Usually this is the same time at which the item is added to the `_activeDragInstances`,
- // but it could be pushed back if the user has set up a drag delay or threshold.
- if (this._activeDragInstances.some(this._draggingPredicate)) {
- event.preventDefault();
- }
- this.pointerMove.next(event);
- }
- };
- this._document = _document;
- }
- /** Adds a drop container to the registry. */
- registerDropContainer(drop) {
- if (!this._dropInstances.has(drop)) {
- this._dropInstances.add(drop);
- }
- }
- /** Adds a drag item instance to the registry. */
- registerDragItem(drag) {
- this._dragInstances.add(drag);
- // The `touchmove` event gets bound once, ahead of time, because WebKit
- // won't preventDefault on a dynamically-added `touchmove` listener.
- // See https://bugs.webkit.org/show_bug.cgi?id=184250.
- if (this._dragInstances.size === 1) {
- this._ngZone.runOutsideAngular(() => {
- // The event handler has to be explicitly active,
- // because newer browsers make it passive by default.
- this._document.addEventListener('touchmove', this._persistentTouchmoveListener, activeCapturingEventOptions);
- });
- }
- }
- /** Removes a drop container from the registry. */
- removeDropContainer(drop) {
- this._dropInstances.delete(drop);
- }
- /** Removes a drag item instance from the registry. */
- removeDragItem(drag) {
- this._dragInstances.delete(drag);
- this.stopDragging(drag);
- if (this._dragInstances.size === 0) {
- this._document.removeEventListener('touchmove', this._persistentTouchmoveListener, activeCapturingEventOptions);
- }
- }
- /**
- * Starts the dragging sequence for a drag instance.
- * @param drag Drag instance which is being dragged.
- * @param event Event that initiated the dragging.
- */
- startDragging(drag, event) {
- // Do not process the same drag twice to avoid memory leaks and redundant listeners
- if (this._activeDragInstances.indexOf(drag) > -1) {
- return;
- }
- this._activeDragInstances.push(drag);
- if (this._activeDragInstances.length === 1) {
- const isTouchEvent = event.type.startsWith('touch');
- // We explicitly bind __active__ listeners here, because newer browsers will default to
- // passive ones for `mousemove` and `touchmove`. The events need to be active, because we
- // use `preventDefault` to prevent the page from scrolling while the user is dragging.
- this._globalListeners
- .set(isTouchEvent ? 'touchend' : 'mouseup', {
- handler: (e) => this.pointerUp.next(e),
- options: true
- })
- .set('scroll', {
- handler: (e) => this.scroll.next(e),
- // Use capturing so that we pick up scroll changes in any scrollable nodes that aren't
- // the document. See https://github.com/angular/components/issues/17144.
- options: true
- })
- // Preventing the default action on `mousemove` isn't enough to disable text selection
- // on Safari so we need to prevent the selection event as well. Alternatively this can
- // be done by setting `user-select: none` on the `body`, however it has causes a style
- // recalculation which can be expensive on pages with a lot of elements.
- .set('selectstart', {
- handler: this._preventDefaultWhileDragging,
- options: activeCapturingEventOptions
- });
- // We don't have to bind a move event for touch drag sequences, because
- // we already have a persistent global one bound from `registerDragItem`.
- if (!isTouchEvent) {
- this._globalListeners.set('mousemove', {
- handler: (e) => this.pointerMove.next(e),
- options: activeCapturingEventOptions
- });
- }
- this._ngZone.runOutsideAngular(() => {
- this._globalListeners.forEach((config, name) => {
- this._document.addEventListener(name, config.handler, config.options);
- });
- });
- }
- }
- /** Stops dragging a drag item instance. */
- stopDragging(drag) {
- const index = this._activeDragInstances.indexOf(drag);
- if (index > -1) {
- this._activeDragInstances.splice(index, 1);
- if (this._activeDragInstances.length === 0) {
- this._clearGlobalListeners();
- }
- }
- }
- /** Gets whether a drag item instance is currently being dragged. */
- isDragging(drag) {
- return this._activeDragInstances.indexOf(drag) > -1;
- }
- /**
- * Gets a stream that will emit when any element on the page is scrolled while an item is being
- * dragged.
- * @param shadowRoot Optional shadow root that the current dragging sequence started from.
- * Top-level listeners won't pick up events coming from the shadow DOM so this parameter can
- * be used to include an additional top-level listener at the shadow root level.
- */
- scrolled(shadowRoot) {
- const streams = [this.scroll];
- if (shadowRoot && shadowRoot !== this._document) {
- // Note that this is basically the same as `fromEvent` from rjxs, but we do it ourselves,
- // because we want to guarantee that the event is bound outside of the `NgZone`. With
- // `fromEvent` it'll only happen if the subscription is outside the `NgZone`.
- streams.push(new Observable((observer) => {
- return this._ngZone.runOutsideAngular(() => {
- const eventOptions = true;
- const callback = (event) => {
- if (this._activeDragInstances.length) {
- observer.next(event);
- }
- };
- shadowRoot.addEventListener('scroll', callback, eventOptions);
- return () => {
- shadowRoot.removeEventListener('scroll', callback, eventOptions);
- };
- });
- }));
- }
- return merge(...streams);
- }
- ngOnDestroy() {
- this._dragInstances.forEach(instance => this.removeDragItem(instance));
- this._dropInstances.forEach(instance => this.removeDropContainer(instance));
- this._clearGlobalListeners();
- this.pointerMove.complete();
- this.pointerUp.complete();
- }
- /** Clears out the global event listeners from the `document`. */
- _clearGlobalListeners() {
- this._globalListeners.forEach((config, name) => {
- this._document.removeEventListener(name, config.handler, config.options);
- });
- this._globalListeners.clear();
- }
-}
-DragDropRegistry.ɵfac = function DragDropRegistry_Factory(t) { return new (t || DragDropRegistry)(ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT)); };
-DragDropRegistry.ɵprov = i0.ɵɵdefineInjectable({ factory: function DragDropRegistry_Factory() { return new DragDropRegistry(i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(i1.DOCUMENT)); }, token: DragDropRegistry, providedIn: "root" });
-DragDropRegistry.ctorParameters = () => [
- { type: NgZone },
- { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }
-];
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(DragDropRegistry, [{
- type: Injectable,
- args: [{ providedIn: 'root' }]
- }], function () { return [{ type: ɵngcc0.NgZone }, { type: undefined, decorators: [{
- type: Inject,
- args: [DOCUMENT]
- }] }]; }, null); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Default configuration to be used when creating a `DragRef`. */
-const DEFAULT_CONFIG = {
- dragStartThreshold: 5,
- pointerDirectionChangeThreshold: 5
-};
-/**
- * Service that allows for drag-and-drop functionality to be attached to DOM elements.
- */
-class DragDrop {
- constructor(_document, _ngZone, _viewportRuler, _dragDropRegistry) {
- this._document = _document;
- this._ngZone = _ngZone;
- this._viewportRuler = _viewportRuler;
- this._dragDropRegistry = _dragDropRegistry;
- }
- /**
- * Turns an element into a draggable item.
- * @param element Element to which to attach the dragging functionality.
- * @param config Object used to configure the dragging behavior.
- */
- createDrag(element, config = DEFAULT_CONFIG) {
- return new DragRef(element, config, this._document, this._ngZone, this._viewportRuler, this._dragDropRegistry);
- }
- /**
- * Turns an element into a drop list.
- * @param element Element to which to attach the drop list functionality.
- */
- createDropList(element) {
- return new DropListRef(element, this._dragDropRegistry, this._document, this._ngZone, this._viewportRuler);
- }
-}
-DragDrop.ɵfac = function DragDrop_Factory(t) { return new (t || DragDrop)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(ɵngcc1.ViewportRuler), ɵngcc0.ɵɵinject(DragDropRegistry)); };
-DragDrop.ɵprov = i0.ɵɵdefineInjectable({ factory: function DragDrop_Factory() { return new DragDrop(i0.ɵɵinject(i1.DOCUMENT), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(i2.ViewportRuler), i0.ɵɵinject(DragDropRegistry)); }, token: DragDrop, providedIn: "root" });
-DragDrop.ctorParameters = () => [
- { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
- { type: NgZone },
- { type: ViewportRuler },
- { type: DragDropRegistry }
-];
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(DragDrop, [{
- type: Injectable,
- args: [{ providedIn: 'root' }]
- }], function () { return [{ type: undefined, decorators: [{
- type: Inject,
- args: [DOCUMENT]
- }] }, { type: ɵngcc0.NgZone }, { type: ɵngcc1.ViewportRuler }, { type: DragDropRegistry }]; }, null); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Injection token that can be used for a `CdkDrag` to provide itself as a parent to the
- * drag-specific child directive (`CdkDragHandle`, `CdkDragPreview` etc.). Used primarily
- * to avoid circular imports.
- * @docs-private
- */
-const CDK_DRAG_PARENT = new InjectionToken('CDK_DRAG_PARENT');
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Injection token that can be used to reference instances of `CdkDropListGroup`. It serves as
- * alternative token to the actual `CdkDropListGroup` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-const CDK_DROP_LIST_GROUP = new InjectionToken('CdkDropListGroup');
-/**
- * Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`
- * elements that are placed inside a `cdkDropListGroup` will be connected to each other
- * automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input
- * from `cdkDropList`.
- */
-class CdkDropListGroup {
- constructor() {
- /** Drop lists registered inside the group. */
- this._items = new Set();
- this._disabled = false;
- }
- /** Whether starting a dragging sequence from inside this group is disabled. */
- get disabled() { return this._disabled; }
- set disabled(value) {
- this._disabled = coerceBooleanProperty(value);
- }
- ngOnDestroy() {
- this._items.clear();
- }
-}
-CdkDropListGroup.ɵfac = function CdkDropListGroup_Factory(t) { return new (t || CdkDropListGroup)(); };
-CdkDropListGroup.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkDropListGroup, selectors: [["", "cdkDropListGroup", ""]], inputs: { disabled: ["cdkDropListGroupDisabled", "disabled"] }, exportAs: ["cdkDropListGroup"], features: [ɵngcc0.ɵɵProvidersFeature([{ provide: CDK_DROP_LIST_GROUP, useExisting: CdkDropListGroup }])] });
-CdkDropListGroup.propDecorators = {
- disabled: [{ type: Input, args: ['cdkDropListGroupDisabled',] }]
-};
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkDropListGroup, [{
- type: Directive,
- args: [{
- selector: '[cdkDropListGroup]',
- exportAs: 'cdkDropListGroup',
- providers: [{ provide: CDK_DROP_LIST_GROUP, useExisting: CdkDropListGroup }]
- }]
- }], function () { return []; }, { disabled: [{
- type: Input,
- args: ['cdkDropListGroupDisabled']
- }] }); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Injection token that can be used to configure the
- * behavior of the drag&drop-related components.
- */
-const CDK_DRAG_CONFIG = new InjectionToken('CDK_DRAG_CONFIG');
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Asserts that a particular node is an element.
- * @param node Node to be checked.
- * @param name Name to attach to the error message.
- */
-function assertElementNode(node, name) {
- if (node.nodeType !== 1) {
- throw Error(`${name} must be attached to an element node. ` +
- `Currently attached to "${node.nodeName}".`);
- }
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/** Counter used to generate unique ids for drop zones. */
-let _uniqueIdCounter = 0;
-/**
- * Injection token that can be used to reference instances of `CdkDropList`. It serves as
- * alternative token to the actual `CdkDropList` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-const CDK_DROP_LIST = new InjectionToken('CdkDropList');
-const ɵ0 = undefined;
-/** Container that wraps a set of draggable items. */
-class CdkDropList {
- constructor(
- /** Element that the drop list is attached to. */
- element, dragDrop, _changeDetectorRef, _scrollDispatcher, _dir, _group, config) {
- this.element = element;
- this._changeDetectorRef = _changeDetectorRef;
- this._scrollDispatcher = _scrollDispatcher;
- this._dir = _dir;
- this._group = _group;
- /** Emits when the list has been destroyed. */
- this._destroyed = new Subject();
- /**
- * Other draggable containers that this container is connected to and into which the
- * container's items can be transferred. Can either be references to other drop containers,
- * or their unique IDs.
- */
- this.connectedTo = [];
- /**
- * Unique ID for the drop zone. Can be used as a reference
- * in the `connectedTo` of another `CdkDropList`.
- */
- this.id = `cdk-drop-list-${_uniqueIdCounter++}`;
- /**
- * Function that is used to determine whether an item
- * is allowed to be moved into a drop container.
- */
- this.enterPredicate = () => true;
- /** Functions that is used to determine whether an item can be sorted into a particular index. */
- this.sortPredicate = () => true;
- /** Emits when the user drops an item inside the container. */
- this.dropped = new EventEmitter();
- /**
- * Emits when the user has moved a new drag item into this container.
- */
- this.entered = new EventEmitter();
- /**
- * Emits when the user removes an item from the container
- * by dragging it into another container.
- */
- this.exited = new EventEmitter();
- /** Emits as the user is swapping items while actively dragging. */
- this.sorted = new EventEmitter();
- /**
- * Keeps track of the items that are registered with this container. Historically we used to
- * do this with a `ContentChildren` query, however queries don't handle transplanted views very
- * well which means that we can't handle cases like dragging the headers of a `mat-table`
- * correctly. What we do instead is to have the items register themselves with the container
- * and then we sort them based on their position in the DOM.
- */
- this._unsortedItems = new Set();
- if (typeof ngDevMode === 'undefined' || ngDevMode) {
- assertElementNode(element.nativeElement, 'cdkDropList');
- }
- this._dropListRef = dragDrop.createDropList(element);
- this._dropListRef.data = this;
- if (config) {
- this._assignDefaults(config);
- }
- this._dropListRef.enterPredicate = (drag, drop) => {
- return this.enterPredicate(drag.data, drop.data);
- };
- this._dropListRef.sortPredicate =
- (index, drag, drop) => {
- return this.sortPredicate(index, drag.data, drop.data);
- };
- this._setupInputSyncSubscription(this._dropListRef);
- this._handleEvents(this._dropListRef);
- CdkDropList._dropLists.push(this);
- if (_group) {
- _group._items.add(this);
- }
- }
- /** Whether starting a dragging sequence from this container is disabled. */
- get disabled() {
- return this._disabled || (!!this._group && this._group.disabled);
- }
- set disabled(value) {
- // Usually we sync the directive and ref state right before dragging starts, in order to have
- // a single point of failure and to avoid having to use setters for everything. `disabled` is
- // a special case, because it can prevent the `beforeStarted` event from firing, which can lock
- // the user in a disabled state, so we also need to sync it as it's being set.
- this._dropListRef.disabled = this._disabled = coerceBooleanProperty(value);
- }
- /** Registers an items with the drop list. */
- addItem(item) {
- this._unsortedItems.add(item);
- if (this._dropListRef.isDragging()) {
- this._syncItemsWithRef();
- }
- }
- /** Removes an item from the drop list. */
- removeItem(item) {
- this._unsortedItems.delete(item);
- if (this._dropListRef.isDragging()) {
- this._syncItemsWithRef();
- }
- }
- /** Gets the registered items in the list, sorted by their position in the DOM. */
- getSortedItems() {
- return Array.from(this._unsortedItems).sort((a, b) => {
- const documentPosition = a._dragRef.getVisibleElement().compareDocumentPosition(b._dragRef.getVisibleElement());
- // `compareDocumentPosition` returns a bitmask so we have to use a bitwise operator.
- // https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition
- // tslint:disable-next-line:no-bitwise
- return documentPosition & Node.DOCUMENT_POSITION_FOLLOWING ? -1 : 1;
- });
- }
- ngOnDestroy() {
- const index = CdkDropList._dropLists.indexOf(this);
- if (index > -1) {
- CdkDropList._dropLists.splice(index, 1);
- }
- if (this._group) {
- this._group._items.delete(this);
- }
- this._unsortedItems.clear();
- this._dropListRef.dispose();
- this._destroyed.next();
- this._destroyed.complete();
- }
- /** Syncs the inputs of the CdkDropList with the options of the underlying DropListRef. */
- _setupInputSyncSubscription(ref) {
- if (this._dir) {
- this._dir.change
- .pipe(startWith(this._dir.value), takeUntil(this._destroyed))
- .subscribe(value => ref.withDirection(value));
- }
- ref.beforeStarted.subscribe(() => {
- const siblings = coerceArray(this.connectedTo).map(drop => {
- if (typeof drop === 'string') {
- const correspondingDropList = CdkDropList._dropLists.find(list => list.id === drop);
- if (!correspondingDropList && (typeof ngDevMode === 'undefined' || ngDevMode)) {
- console.warn(`CdkDropList could not find connected drop list with id "${drop}"`);
- }
- return correspondingDropList;
- }
- return drop;
- });
- if (this._group) {
- this._group._items.forEach(drop => {
- if (siblings.indexOf(drop) === -1) {
- siblings.push(drop);
- }
- });
- }
- // Note that we resolve the scrollable parents here so that we delay the resolution
- // as long as possible, ensuring that the element is in its final place in the DOM.
- if (!this._scrollableParentsResolved) {
- const scrollableParents = this._scrollDispatcher
- .getAncestorScrollContainers(this.element)
- .map(scrollable => scrollable.getElementRef().nativeElement);
- this._dropListRef.withScrollableParents(scrollableParents);
- // Only do this once since it involves traversing the DOM and the parents
- // shouldn't be able to change without the drop list being destroyed.
- this._scrollableParentsResolved = true;
- }
- ref.disabled = this.disabled;
- ref.lockAxis = this.lockAxis;
- ref.sortingDisabled = coerceBooleanProperty(this.sortingDisabled);
- ref.autoScrollDisabled = coerceBooleanProperty(this.autoScrollDisabled);
- ref.autoScrollStep = coerceNumberProperty(this.autoScrollStep, 2);
- ref
- .connectedTo(siblings.filter(drop => drop && drop !== this).map(list => list._dropListRef))
- .withOrientation(this.orientation);
- });
- }
- /** Handles events from the underlying DropListRef. */
- _handleEvents(ref) {
- ref.beforeStarted.subscribe(() => {
- this._syncItemsWithRef();
- this._changeDetectorRef.markForCheck();
- });
- ref.entered.subscribe(event => {
- this.entered.emit({
- container: this,
- item: event.item.data,
- currentIndex: event.currentIndex
- });
- });
- ref.exited.subscribe(event => {
- this.exited.emit({
- container: this,
- item: event.item.data
- });
- this._changeDetectorRef.markForCheck();
- });
- ref.sorted.subscribe(event => {
- this.sorted.emit({
- previousIndex: event.previousIndex,
- currentIndex: event.currentIndex,
- container: this,
- item: event.item.data
- });
- });
- ref.dropped.subscribe(event => {
- this.dropped.emit({
- previousIndex: event.previousIndex,
- currentIndex: event.currentIndex,
- previousContainer: event.previousContainer.data,
- container: event.container.data,
- item: event.item.data,
- isPointerOverContainer: event.isPointerOverContainer,
- distance: event.distance,
- dropPoint: event.dropPoint
- });
- // Mark for check since all of these events run outside of change
- // detection and we're not guaranteed for something else to have triggered it.
- this._changeDetectorRef.markForCheck();
- });
- }
- /** Assigns the default input values based on a provided config object. */
- _assignDefaults(config) {
- const { lockAxis, draggingDisabled, sortingDisabled, listAutoScrollDisabled, listOrientation } = config;
- this.disabled = draggingDisabled == null ? false : draggingDisabled;
- this.sortingDisabled = sortingDisabled == null ? false : sortingDisabled;
- this.autoScrollDisabled = listAutoScrollDisabled == null ? false : listAutoScrollDisabled;
- this.orientation = listOrientation || 'vertical';
- if (lockAxis) {
- this.lockAxis = lockAxis;
- }
- }
- /** Syncs up the registered drag items with underlying drop list ref. */
- _syncItemsWithRef() {
- this._dropListRef.withItems(this.getSortedItems().map(item => item._dragRef));
- }
-}
-CdkDropList.ɵfac = function CdkDropList_Factory(t) { return new (t || CdkDropList)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(DragDrop), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.ScrollDispatcher), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(CDK_DROP_LIST_GROUP, 12), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_CONFIG, 8)); };
-CdkDropList.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkDropList, selectors: [["", "cdkDropList", ""], ["cdk-drop-list"]], hostAttrs: [1, "cdk-drop-list"], hostVars: 7, hostBindings: function CdkDropList_HostBindings(rf, ctx) { if (rf & 2) {
- ɵngcc0.ɵɵattribute("id", ctx.id);
- ɵngcc0.ɵɵclassProp("cdk-drop-list-disabled", ctx.disabled)("cdk-drop-list-dragging", ctx._dropListRef.isDragging())("cdk-drop-list-receiving", ctx._dropListRef.isReceiving());
- } }, inputs: { connectedTo: ["cdkDropListConnectedTo", "connectedTo"], id: "id", enterPredicate: ["cdkDropListEnterPredicate", "enterPredicate"], sortPredicate: ["cdkDropListSortPredicate", "sortPredicate"], disabled: ["cdkDropListDisabled", "disabled"], sortingDisabled: ["cdkDropListSortingDisabled", "sortingDisabled"], autoScrollDisabled: ["cdkDropListAutoScrollDisabled", "autoScrollDisabled"], orientation: ["cdkDropListOrientation", "orientation"], lockAxis: ["cdkDropListLockAxis", "lockAxis"], data: ["cdkDropListData", "data"], autoScrollStep: ["cdkDropListAutoScrollStep", "autoScrollStep"] }, outputs: { dropped: "cdkDropListDropped", entered: "cdkDropListEntered", exited: "cdkDropListExited", sorted: "cdkDropListSorted" }, exportAs: ["cdkDropList"], features: [ɵngcc0.ɵɵProvidersFeature([
- // Prevent child drop lists from picking up the same group as their parent.
- { provide: CDK_DROP_LIST_GROUP, useValue: ɵ0 },
- { provide: CDK_DROP_LIST, useExisting: CdkDropList },
- ])] });
-/** Keeps track of the drop lists that are currently on the page. */
-CdkDropList._dropLists = [];
-CdkDropList.ctorParameters = () => [
- { type: ElementRef },
- { type: DragDrop },
- { type: ChangeDetectorRef },
- { type: ScrollDispatcher },
- { type: Directionality, decorators: [{ type: Optional }] },
- { type: CdkDropListGroup, decorators: [{ type: Optional }, { type: Inject, args: [CDK_DROP_LIST_GROUP,] }, { type: SkipSelf }] },
- { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [CDK_DRAG_CONFIG,] }] }
-];
-CdkDropList.propDecorators = {
- connectedTo: [{ type: Input, args: ['cdkDropListConnectedTo',] }],
- data: [{ type: Input, args: ['cdkDropListData',] }],
- orientation: [{ type: Input, args: ['cdkDropListOrientation',] }],
- id: [{ type: Input }],
- lockAxis: [{ type: Input, args: ['cdkDropListLockAxis',] }],
- disabled: [{ type: Input, args: ['cdkDropListDisabled',] }],
- sortingDisabled: [{ type: Input, args: ['cdkDropListSortingDisabled',] }],
- enterPredicate: [{ type: Input, args: ['cdkDropListEnterPredicate',] }],
- sortPredicate: [{ type: Input, args: ['cdkDropListSortPredicate',] }],
- autoScrollDisabled: [{ type: Input, args: ['cdkDropListAutoScrollDisabled',] }],
- autoScrollStep: [{ type: Input, args: ['cdkDropListAutoScrollStep',] }],
- dropped: [{ type: Output, args: ['cdkDropListDropped',] }],
- entered: [{ type: Output, args: ['cdkDropListEntered',] }],
- exited: [{ type: Output, args: ['cdkDropListExited',] }],
- sorted: [{ type: Output, args: ['cdkDropListSorted',] }]
-};
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkDropList, [{
- type: Directive,
- args: [{
- selector: '[cdkDropList], cdk-drop-list',
- exportAs: 'cdkDropList',
- providers: [
- // Prevent child drop lists from picking up the same group as their parent.
- { provide: CDK_DROP_LIST_GROUP, useValue: ɵ0 },
- { provide: CDK_DROP_LIST, useExisting: CdkDropList },
- ],
- host: {
- 'class': 'cdk-drop-list',
- '[attr.id]': 'id',
- '[class.cdk-drop-list-disabled]': 'disabled',
- '[class.cdk-drop-list-dragging]': '_dropListRef.isDragging()',
- '[class.cdk-drop-list-receiving]': '_dropListRef.isReceiving()'
- }
- }]
- }], function () { return [{ type: ɵngcc0.ElementRef }, { type: DragDrop }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc1.ScrollDispatcher }, { type: ɵngcc2.Directionality, decorators: [{
- type: Optional
- }] }, { type: CdkDropListGroup, decorators: [{
- type: Optional
- }, {
- type: Inject,
- args: [CDK_DROP_LIST_GROUP]
- }, {
- type: SkipSelf
- }] }, { type: undefined, decorators: [{
- type: Optional
- }, {
- type: Inject,
- args: [CDK_DRAG_CONFIG]
- }] }]; }, { connectedTo: [{
- type: Input,
- args: ['cdkDropListConnectedTo']
- }], id: [{
- type: Input
- }], enterPredicate: [{
- type: Input,
- args: ['cdkDropListEnterPredicate']
- }], sortPredicate: [{
- type: Input,
- args: ['cdkDropListSortPredicate']
- }], dropped: [{
- type: Output,
- args: ['cdkDropListDropped']
- }], entered: [{
- type: Output,
- args: ['cdkDropListEntered']
- }], exited: [{
- type: Output,
- args: ['cdkDropListExited']
- }], sorted: [{
- type: Output,
- args: ['cdkDropListSorted']
- }], disabled: [{
- type: Input,
- args: ['cdkDropListDisabled']
- }], sortingDisabled: [{
- type: Input,
- args: ['cdkDropListSortingDisabled']
- }], autoScrollDisabled: [{
- type: Input,
- args: ['cdkDropListAutoScrollDisabled']
- }], orientation: [{
- type: Input,
- args: ['cdkDropListOrientation']
- }], lockAxis: [{
- type: Input,
- args: ['cdkDropListLockAxis']
- }], data: [{
- type: Input,
- args: ['cdkDropListData']
- }], autoScrollStep: [{
- type: Input,
- args: ['cdkDropListAutoScrollStep']
- }] }); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Injection token that can be used to reference instances of `CdkDragHandle`. It serves as
- * alternative token to the actual `CdkDragHandle` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-const CDK_DRAG_HANDLE = new InjectionToken('CdkDragHandle');
-/** Handle that can be used to drag a CdkDrag instance. */
-class CdkDragHandle {
- constructor(element, parentDrag) {
- this.element = element;
- /** Emits when the state of the handle has changed. */
- this._stateChanges = new Subject();
- this._disabled = false;
- if (typeof ngDevMode === 'undefined' || ngDevMode) {
- assertElementNode(element.nativeElement, 'cdkDragHandle');
- }
- this._parentDrag = parentDrag;
- }
- /** Whether starting to drag through this handle is disabled. */
- get disabled() { return this._disabled; }
- set disabled(value) {
- this._disabled = coerceBooleanProperty(value);
- this._stateChanges.next(this);
- }
- ngOnDestroy() {
- this._stateChanges.complete();
- }
-}
-CdkDragHandle.ɵfac = function CdkDragHandle_Factory(t) { return new (t || CdkDragHandle)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_PARENT, 12)); };
-CdkDragHandle.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkDragHandle, selectors: [["", "cdkDragHandle", ""]], hostAttrs: [1, "cdk-drag-handle"], inputs: { disabled: ["cdkDragHandleDisabled", "disabled"] }, features: [ɵngcc0.ɵɵProvidersFeature([{ provide: CDK_DRAG_HANDLE, useExisting: CdkDragHandle }])] });
-CdkDragHandle.ctorParameters = () => [
- { type: ElementRef },
- { type: undefined, decorators: [{ type: Inject, args: [CDK_DRAG_PARENT,] }, { type: Optional }, { type: SkipSelf }] }
-];
-CdkDragHandle.propDecorators = {
- disabled: [{ type: Input, args: ['cdkDragHandleDisabled',] }]
-};
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkDragHandle, [{
- type: Directive,
- args: [{
- selector: '[cdkDragHandle]',
- host: {
- 'class': 'cdk-drag-handle'
- },
- providers: [{ provide: CDK_DRAG_HANDLE, useExisting: CdkDragHandle }]
- }]
- }], function () { return [{ type: ɵngcc0.ElementRef }, { type: undefined, decorators: [{
- type: Inject,
- args: [CDK_DRAG_PARENT]
- }, {
- type: Optional
- }, {
- type: SkipSelf
- }] }]; }, { disabled: [{
- type: Input,
- args: ['cdkDragHandleDisabled']
- }] }); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Injection token that can be used to reference instances of `CdkDragPlaceholder`. It serves as
- * alternative token to the actual `CdkDragPlaceholder` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-const CDK_DRAG_PLACEHOLDER = new InjectionToken('CdkDragPlaceholder');
-/**
- * Element that will be used as a template for the placeholder of a CdkDrag when
- * it is being dragged. The placeholder is displayed in place of the element being dragged.
- */
-class CdkDragPlaceholder {
- constructor(templateRef) {
- this.templateRef = templateRef;
- }
-}
-CdkDragPlaceholder.ɵfac = function CdkDragPlaceholder_Factory(t) { return new (t || CdkDragPlaceholder)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef)); };
-CdkDragPlaceholder.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkDragPlaceholder, selectors: [["ng-template", "cdkDragPlaceholder", ""]], inputs: { data: "data" }, features: [ɵngcc0.ɵɵProvidersFeature([{ provide: CDK_DRAG_PLACEHOLDER, useExisting: CdkDragPlaceholder }])] });
-CdkDragPlaceholder.ctorParameters = () => [
- { type: TemplateRef }
-];
-CdkDragPlaceholder.propDecorators = {
- data: [{ type: Input }]
-};
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkDragPlaceholder, [{
- type: Directive,
- args: [{
- selector: 'ng-template[cdkDragPlaceholder]',
- providers: [{ provide: CDK_DRAG_PLACEHOLDER, useExisting: CdkDragPlaceholder }]
- }]
- }], function () { return [{ type: ɵngcc0.TemplateRef }]; }, { data: [{
- type: Input
- }] }); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-/**
- * Injection token that can be used to reference instances of `CdkDragPreview`. It serves as
- * alternative token to the actual `CdkDragPreview` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-const CDK_DRAG_PREVIEW = new InjectionToken('CdkDragPreview');
-/**
- * Element that will be used as a template for the preview
- * of a CdkDrag when it is being dragged.
- */
-class CdkDragPreview {
- constructor(templateRef) {
- this.templateRef = templateRef;
- this._matchSize = false;
- }
- /** Whether the preview should preserve the same size as the item that is being dragged. */
- get matchSize() { return this._matchSize; }
- set matchSize(value) { this._matchSize = coerceBooleanProperty(value); }
-}
-CdkDragPreview.ɵfac = function CdkDragPreview_Factory(t) { return new (t || CdkDragPreview)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef)); };
-CdkDragPreview.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkDragPreview, selectors: [["ng-template", "cdkDragPreview", ""]], inputs: { matchSize: "matchSize", data: "data" }, features: [ɵngcc0.ɵɵProvidersFeature([{ provide: CDK_DRAG_PREVIEW, useExisting: CdkDragPreview }])] });
-CdkDragPreview.ctorParameters = () => [
- { type: TemplateRef }
-];
-CdkDragPreview.propDecorators = {
- data: [{ type: Input }],
- matchSize: [{ type: Input }]
-};
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkDragPreview, [{
- type: Directive,
- args: [{
- selector: 'ng-template[cdkDragPreview]',
- providers: [{ provide: CDK_DRAG_PREVIEW, useExisting: CdkDragPreview }]
- }]
- }], function () { return [{ type: ɵngcc0.TemplateRef }]; }, { matchSize: [{
- type: Input
- }], data: [{
- type: Input
- }] }); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-const DRAG_HOST_CLASS = 'cdk-drag';
-/** Element that can be moved inside a CdkDropList container. */
-class CdkDrag {
- constructor(
- /** Element that the draggable is attached to. */
- element,
- /** Droppable container that the draggable is a part of. */
- dropContainer,
- /**
- * @deprecated `_document` parameter no longer being used and will be removed.
- * @breaking-change 12.0.0
- */
- _document, _ngZone, _viewContainerRef, config, _dir, dragDrop, _changeDetectorRef, _selfHandle, _parentDrag) {
- this.element = element;
- this.dropContainer = dropContainer;
- this._ngZone = _ngZone;
- this._viewContainerRef = _viewContainerRef;
- this._dir = _dir;
- this._changeDetectorRef = _changeDetectorRef;
- this._selfHandle = _selfHandle;
- this._parentDrag = _parentDrag;
- this._destroyed = new Subject();
- /** Emits when the user starts dragging the item. */
- this.started = new EventEmitter();
- /** Emits when the user has released a drag item, before any animations have started. */
- this.released = new EventEmitter();
- /** Emits when the user stops dragging an item in the container. */
- this.ended = new EventEmitter();
- /** Emits when the user has moved the item into a new container. */
- this.entered = new EventEmitter();
- /** Emits when the user removes the item its container by dragging it into another container. */
- this.exited = new EventEmitter();
- /** Emits when the user drops the item inside a container. */
- this.dropped = new EventEmitter();
- /**
- * Emits as the user is dragging the item. Use with caution,
- * because this event will fire for every pixel that the user has dragged.
- */
- this.moved = new Observable((observer) => {
- const subscription = this._dragRef.moved.pipe(map(movedEvent => ({
- source: this,
- pointerPosition: movedEvent.pointerPosition,
- event: movedEvent.event,
- delta: movedEvent.delta,
- distance: movedEvent.distance
- }))).subscribe(observer);
- return () => {
- subscription.unsubscribe();
- };
- });
- this._dragRef = dragDrop.createDrag(element, {
- dragStartThreshold: config && config.dragStartThreshold != null ?
- config.dragStartThreshold : 5,
- pointerDirectionChangeThreshold: config && config.pointerDirectionChangeThreshold != null ?
- config.pointerDirectionChangeThreshold : 5,
- zIndex: config === null || config === void 0 ? void 0 : config.zIndex,
- });
- this._dragRef.data = this;
- // We have to keep track of the drag instances in order to be able to match an element to
- // a drag instance. We can't go through the global registry of `DragRef`, because the root
- // element could be different.
- CdkDrag._dragInstances.push(this);
- if (config) {
- this._assignDefaults(config);
- }
- // Note that usually the container is assigned when the drop list is picks up the item, but in
- // some cases (mainly transplanted views with OnPush, see #18341) we may end up in a situation
- // where there are no items on the first change detection pass, but the items get picked up as
- // soon as the user triggers another pass by dragging. This is a problem, because the item would
- // have to switch from standalone mode to drag mode in the middle of the dragging sequence which
- // is too late since the two modes save different kinds of information. We work around it by
- // assigning the drop container both from here and the list.
- if (dropContainer) {
- this._dragRef._withDropContainer(dropContainer._dropListRef);
- dropContainer.addItem(this);
- }
- this._syncInputs(this._dragRef);
- this._handleEvents(this._dragRef);
- }
- /** Whether starting to drag this element is disabled. */
- get disabled() {
- return this._disabled || (this.dropContainer && this.dropContainer.disabled);
- }
- set disabled(value) {
- this._disabled = coerceBooleanProperty(value);
- this._dragRef.disabled = this._disabled;
- }
- /**
- * Returns the element that is being used as a placeholder
- * while the current element is being dragged.
- */
- getPlaceholderElement() {
- return this._dragRef.getPlaceholderElement();
- }
- /** Returns the root draggable element. */
- getRootElement() {
- return this._dragRef.getRootElement();
- }
- /** Resets a standalone drag item to its initial position. */
- reset() {
- this._dragRef.reset();
- }
- /**
- * Gets the pixel coordinates of the draggable outside of a drop container.
- */
- getFreeDragPosition() {
- return this._dragRef.getFreeDragPosition();
- }
- ngAfterViewInit() {
- // Normally this isn't in the zone, but it can cause major performance regressions for apps
- // using `zone-patch-rxjs` because it'll trigger a change detection when it unsubscribes.
- this._ngZone.runOutsideAngular(() => {
- // We need to wait for the zone to stabilize, in order for the reference
- // element to be in the proper place in the DOM. This is mostly relevant
- // for draggable elements inside portals since they get stamped out in
- // their original DOM position and then they get transferred to the portal.
- this._ngZone.onStable
- .pipe(take(1), takeUntil(this._destroyed))
- .subscribe(() => {
- this._updateRootElement();
- this._setupHandlesListener();
- if (this.freeDragPosition) {
- this._dragRef.setFreeDragPosition(this.freeDragPosition);
- }
- });
- });
- }
- ngOnChanges(changes) {
- const rootSelectorChange = changes['rootElementSelector'];
- const positionChange = changes['freeDragPosition'];
- // We don't have to react to the first change since it's being
- // handled in `ngAfterViewInit` where it needs to be deferred.
- if (rootSelectorChange && !rootSelectorChange.firstChange) {
- this._updateRootElement();
- }
- // Skip the first change since it's being handled in `ngAfterViewInit`.
- if (positionChange && !positionChange.firstChange && this.freeDragPosition) {
- this._dragRef.setFreeDragPosition(this.freeDragPosition);
- }
- }
- ngOnDestroy() {
- if (this.dropContainer) {
- this.dropContainer.removeItem(this);
- }
- const index = CdkDrag._dragInstances.indexOf(this);
- if (index > -1) {
- CdkDrag._dragInstances.splice(index, 1);
- }
- // Unnecessary in most cases, but used to avoid extra change detections with `zone-paths-rxjs`.
- this._ngZone.runOutsideAngular(() => {
- this._destroyed.next();
- this._destroyed.complete();
- this._dragRef.dispose();
- });
- }
- /** Syncs the root element with the `DragRef`. */
- _updateRootElement() {
- const element = this.element.nativeElement;
- const rootElement = this.rootElementSelector ?
- getClosestMatchingAncestor(element, this.rootElementSelector) : element;
- if (rootElement && (typeof ngDevMode === 'undefined' || ngDevMode)) {
- assertElementNode(rootElement, 'cdkDrag');
- }
- this._dragRef.withRootElement(rootElement || element);
- }
- /** Gets the boundary element, based on the `boundaryElement` value. */
- _getBoundaryElement() {
- const boundary = this.boundaryElement;
- if (!boundary) {
- return null;
- }
- if (typeof boundary === 'string') {
- return getClosestMatchingAncestor(this.element.nativeElement, boundary);
- }
- const element = coerceElement(boundary);
- if ((typeof ngDevMode === 'undefined' || ngDevMode) &&
- !element.contains(this.element.nativeElement)) {
- throw Error('Draggable element is not inside of the node passed into cdkDragBoundary.');
- }
- return element;
- }
- /** Syncs the inputs of the CdkDrag with the options of the underlying DragRef. */
- _syncInputs(ref) {
- ref.beforeStarted.subscribe(() => {
- if (!ref.isDragging()) {
- const dir = this._dir;
- const dragStartDelay = this.dragStartDelay;
- const placeholder = this._placeholderTemplate ? {
- template: this._placeholderTemplate.templateRef,
- context: this._placeholderTemplate.data,
- viewContainer: this._viewContainerRef
- } : null;
- const preview = this._previewTemplate ? {
- template: this._previewTemplate.templateRef,
- context: this._previewTemplate.data,
- matchSize: this._previewTemplate.matchSize,
- viewContainer: this._viewContainerRef
- } : null;
- ref.disabled = this.disabled;
- ref.lockAxis = this.lockAxis;
- ref.dragStartDelay = (typeof dragStartDelay === 'object' && dragStartDelay) ?
- dragStartDelay : coerceNumberProperty(dragStartDelay);
- ref.constrainPosition = this.constrainPosition;
- ref.previewClass = this.previewClass;
- ref
- .withBoundaryElement(this._getBoundaryElement())
- .withPlaceholderTemplate(placeholder)
- .withPreviewTemplate(preview)
- .withPreviewContainer(this.previewContainer || 'global');
- if (dir) {
- ref.withDirection(dir.value);
- }
- }
- });
- // This only needs to be resolved once.
- ref.beforeStarted.pipe(take(1)).subscribe(() => {
- var _a, _b;
- // If we managed to resolve a parent through DI, use it.
- if (this._parentDrag) {
- ref.withParent(this._parentDrag._dragRef);
- return;
- }
- // Otherwise fall back to resolving the parent by looking up the DOM. This can happen if
- // the item was projected into another item by something like `ngTemplateOutlet`.
- let parent = this.element.nativeElement.parentElement;
- while (parent) {
- // `classList` needs to be null checked, because IE doesn't have it on some elements.
- if ((_a = parent.classList) === null || _a === void 0 ? void 0 : _a.contains(DRAG_HOST_CLASS)) {
- ref.withParent(((_b = CdkDrag._dragInstances.find(drag => {
- return drag.element.nativeElement === parent;
- })) === null || _b === void 0 ? void 0 : _b._dragRef) || null);
- break;
- }
- parent = parent.parentElement;
- }
- });
- }
- /** Handles the events from the underlying `DragRef`. */
- _handleEvents(ref) {
- ref.started.subscribe(() => {
- this.started.emit({ source: this });
- // Since all of these events run outside of change detection,
- // we need to ensure that everything is marked correctly.
- this._changeDetectorRef.markForCheck();
- });
- ref.released.subscribe(() => {
- this.released.emit({ source: this });
- });
- ref.ended.subscribe(event => {
- this.ended.emit({
- source: this,
- distance: event.distance,
- dropPoint: event.dropPoint
- });
- // Since all of these events run outside of change detection,
- // we need to ensure that everything is marked correctly.
- this._changeDetectorRef.markForCheck();
- });
- ref.entered.subscribe(event => {
- this.entered.emit({
- container: event.container.data,
- item: this,
- currentIndex: event.currentIndex
- });
- });
- ref.exited.subscribe(event => {
- this.exited.emit({
- container: event.container.data,
- item: this
- });
- });
- ref.dropped.subscribe(event => {
- this.dropped.emit({
- previousIndex: event.previousIndex,
- currentIndex: event.currentIndex,
- previousContainer: event.previousContainer.data,
- container: event.container.data,
- isPointerOverContainer: event.isPointerOverContainer,
- item: this,
- distance: event.distance,
- dropPoint: event.dropPoint
- });
- });
- }
- /** Assigns the default input values based on a provided config object. */
- _assignDefaults(config) {
- const { lockAxis, dragStartDelay, constrainPosition, previewClass, boundaryElement, draggingDisabled, rootElementSelector, previewContainer } = config;
- this.disabled = draggingDisabled == null ? false : draggingDisabled;
- this.dragStartDelay = dragStartDelay || 0;
- if (lockAxis) {
- this.lockAxis = lockAxis;
- }
- if (constrainPosition) {
- this.constrainPosition = constrainPosition;
- }
- if (previewClass) {
- this.previewClass = previewClass;
- }
- if (boundaryElement) {
- this.boundaryElement = boundaryElement;
- }
- if (rootElementSelector) {
- this.rootElementSelector = rootElementSelector;
- }
- if (previewContainer) {
- this.previewContainer = previewContainer;
- }
- }
- /** Sets up the listener that syncs the handles with the drag ref. */
- _setupHandlesListener() {
- // Listen for any newly-added handles.
- this._handles.changes.pipe(startWith(this._handles),
- // Sync the new handles with the DragRef.
- tap((handles) => {
- const childHandleElements = handles
- .filter(handle => handle._parentDrag === this)
- .map(handle => handle.element);
- // Usually handles are only allowed to be a descendant of the drag element, but if
- // the consumer defined a different drag root, we should allow the drag element
- // itself to be a handle too.
- if (this._selfHandle && this.rootElementSelector) {
- childHandleElements.push(this.element);
- }
- this._dragRef.withHandles(childHandleElements);
- }),
- // Listen if the state of any of the handles changes.
- switchMap((handles) => {
- return merge(...handles.map(item => {
- return item._stateChanges.pipe(startWith(item));
- }));
- }), takeUntil(this._destroyed)).subscribe(handleInstance => {
- // Enabled/disable the handle that changed in the DragRef.
- const dragRef = this._dragRef;
- const handle = handleInstance.element.nativeElement;
- handleInstance.disabled ? dragRef.disableHandle(handle) : dragRef.enableHandle(handle);
- });
- }
-}
-CdkDrag.ɵfac = function CdkDrag_Factory(t) { return new (t || CdkDrag)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(CDK_DROP_LIST, 12), ɵngcc0.ɵɵdirectiveInject(DOCUMENT), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_CONFIG, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(DragDrop), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_HANDLE, 10), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_PARENT, 12)); };
-CdkDrag.ɵdir = /*@__PURE__*/ ɵngcc0.ɵɵdefineDirective({ type: CdkDrag, selectors: [["", "cdkDrag", ""]], contentQueries: function CdkDrag_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {
- ɵngcc0.ɵɵcontentQuery(dirIndex, CDK_DRAG_PREVIEW, 5);
- ɵngcc0.ɵɵcontentQuery(dirIndex, CDK_DRAG_PLACEHOLDER, 5);
- ɵngcc0.ɵɵcontentQuery(dirIndex, CDK_DRAG_HANDLE, 5);
- } if (rf & 2) {
- let _t;
- ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._previewTemplate = _t.first);
- ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._placeholderTemplate = _t.first);
- ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._handles = _t);
- } }, hostAttrs: [1, "cdk-drag"], hostVars: 4, hostBindings: function CdkDrag_HostBindings(rf, ctx) { if (rf & 2) {
- ɵngcc0.ɵɵclassProp("cdk-drag-disabled", ctx.disabled)("cdk-drag-dragging", ctx._dragRef.isDragging());
- } }, inputs: { disabled: ["cdkDragDisabled", "disabled"], dragStartDelay: ["cdkDragStartDelay", "dragStartDelay"], lockAxis: ["cdkDragLockAxis", "lockAxis"], constrainPosition: ["cdkDragConstrainPosition", "constrainPosition"], previewClass: ["cdkDragPreviewClass", "previewClass"], boundaryElement: ["cdkDragBoundary", "boundaryElement"], rootElementSelector: ["cdkDragRootElement", "rootElementSelector"], previewContainer: ["cdkDragPreviewContainer", "previewContainer"], data: ["cdkDragData", "data"], freeDragPosition: ["cdkDragFreeDragPosition", "freeDragPosition"] }, outputs: { started: "cdkDragStarted", released: "cdkDragReleased", ended: "cdkDragEnded", entered: "cdkDragEntered", exited: "cdkDragExited", dropped: "cdkDragDropped", moved: "cdkDragMoved" }, exportAs: ["cdkDrag"], features: [ɵngcc0.ɵɵProvidersFeature([{ provide: CDK_DRAG_PARENT, useExisting: CdkDrag }]), ɵngcc0.ɵɵNgOnChangesFeature] });
-CdkDrag._dragInstances = [];
-CdkDrag.ctorParameters = () => [
- { type: ElementRef },
- { type: undefined, decorators: [{ type: Inject, args: [CDK_DROP_LIST,] }, { type: Optional }, { type: SkipSelf }] },
- { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
- { type: NgZone },
- { type: ViewContainerRef },
- { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [CDK_DRAG_CONFIG,] }] },
- { type: Directionality, decorators: [{ type: Optional }] },
- { type: DragDrop },
- { type: ChangeDetectorRef },
- { type: CdkDragHandle, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [CDK_DRAG_HANDLE,] }] },
- { type: CdkDrag, decorators: [{ type: Optional }, { type: SkipSelf }, { type: Inject, args: [CDK_DRAG_PARENT,] }] }
-];
-CdkDrag.propDecorators = {
- _handles: [{ type: ContentChildren, args: [CDK_DRAG_HANDLE, { descendants: true },] }],
- _previewTemplate: [{ type: ContentChild, args: [CDK_DRAG_PREVIEW,] }],
- _placeholderTemplate: [{ type: ContentChild, args: [CDK_DRAG_PLACEHOLDER,] }],
- data: [{ type: Input, args: ['cdkDragData',] }],
- lockAxis: [{ type: Input, args: ['cdkDragLockAxis',] }],
- rootElementSelector: [{ type: Input, args: ['cdkDragRootElement',] }],
- boundaryElement: [{ type: Input, args: ['cdkDragBoundary',] }],
- dragStartDelay: [{ type: Input, args: ['cdkDragStartDelay',] }],
- freeDragPosition: [{ type: Input, args: ['cdkDragFreeDragPosition',] }],
- disabled: [{ type: Input, args: ['cdkDragDisabled',] }],
- constrainPosition: [{ type: Input, args: ['cdkDragConstrainPosition',] }],
- previewClass: [{ type: Input, args: ['cdkDragPreviewClass',] }],
- previewContainer: [{ type: Input, args: ['cdkDragPreviewContainer',] }],
- started: [{ type: Output, args: ['cdkDragStarted',] }],
- released: [{ type: Output, args: ['cdkDragReleased',] }],
- ended: [{ type: Output, args: ['cdkDragEnded',] }],
- entered: [{ type: Output, args: ['cdkDragEntered',] }],
- exited: [{ type: Output, args: ['cdkDragExited',] }],
- dropped: [{ type: Output, args: ['cdkDragDropped',] }],
- moved: [{ type: Output, args: ['cdkDragMoved',] }]
-};
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(CdkDrag, [{
- type: Directive,
- args: [{
- selector: '[cdkDrag]',
- exportAs: 'cdkDrag',
- host: {
- 'class': DRAG_HOST_CLASS,
- '[class.cdk-drag-disabled]': 'disabled',
- '[class.cdk-drag-dragging]': '_dragRef.isDragging()'
- },
- providers: [{ provide: CDK_DRAG_PARENT, useExisting: CdkDrag }]
- }]
- }], function () { return [{ type: ɵngcc0.ElementRef }, { type: undefined, decorators: [{
- type: Inject,
- args: [CDK_DROP_LIST]
- }, {
- type: Optional
- }, {
- type: SkipSelf
- }] }, { type: undefined, decorators: [{
- type: Inject,
- args: [DOCUMENT]
- }] }, { type: ɵngcc0.NgZone }, { type: ɵngcc0.ViewContainerRef }, { type: undefined, decorators: [{
- type: Optional
- }, {
- type: Inject,
- args: [CDK_DRAG_CONFIG]
- }] }, { type: ɵngcc2.Directionality, decorators: [{
- type: Optional
- }] }, { type: DragDrop }, { type: ɵngcc0.ChangeDetectorRef }, { type: CdkDragHandle, decorators: [{
- type: Optional
- }, {
- type: Self
- }, {
- type: Inject,
- args: [CDK_DRAG_HANDLE]
- }] }, { type: CdkDrag, decorators: [{
- type: Optional
- }, {
- type: SkipSelf
- }, {
- type: Inject,
- args: [CDK_DRAG_PARENT]
- }] }]; }, { started: [{
- type: Output,
- args: ['cdkDragStarted']
- }], released: [{
- type: Output,
- args: ['cdkDragReleased']
- }], ended: [{
- type: Output,
- args: ['cdkDragEnded']
- }], entered: [{
- type: Output,
- args: ['cdkDragEntered']
- }], exited: [{
- type: Output,
- args: ['cdkDragExited']
- }], dropped: [{
- type: Output,
- args: ['cdkDragDropped']
- }], moved: [{
- type: Output,
- args: ['cdkDragMoved']
- }], disabled: [{
- type: Input,
- args: ['cdkDragDisabled']
- }], dragStartDelay: [{
- type: Input,
- args: ['cdkDragStartDelay']
- }], lockAxis: [{
- type: Input,
- args: ['cdkDragLockAxis']
- }], constrainPosition: [{
- type: Input,
- args: ['cdkDragConstrainPosition']
- }], previewClass: [{
- type: Input,
- args: ['cdkDragPreviewClass']
- }], boundaryElement: [{
- type: Input,
- args: ['cdkDragBoundary']
- }], rootElementSelector: [{
- type: Input,
- args: ['cdkDragRootElement']
- }], previewContainer: [{
- type: Input,
- args: ['cdkDragPreviewContainer']
- }], _handles: [{
- type: ContentChildren,
- args: [CDK_DRAG_HANDLE, { descendants: true }]
- }], _previewTemplate: [{
- type: ContentChild,
- args: [CDK_DRAG_PREVIEW]
- }], _placeholderTemplate: [{
- type: ContentChild,
- args: [CDK_DRAG_PLACEHOLDER]
- }], data: [{
- type: Input,
- args: ['cdkDragData']
- }], freeDragPosition: [{
- type: Input,
- args: ['cdkDragFreeDragPosition']
- }] }); })();
-/** Gets the closest ancestor of an element that matches a selector. */
-function getClosestMatchingAncestor(element, selector) {
- let currentElement = element.parentElement;
- while (currentElement) {
- // IE doesn't support `matches` so we have to fall back to `msMatchesSelector`.
- if (currentElement.matches ? currentElement.matches(selector) :
- currentElement.msMatchesSelector(selector)) {
- return currentElement;
- }
- currentElement = currentElement.parentElement;
- }
- return null;
-}
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-class DragDropModule {
-}
-DragDropModule.ɵfac = function DragDropModule_Factory(t) { return new (t || DragDropModule)(); };
-DragDropModule.ɵmod = /*@__PURE__*/ ɵngcc0.ɵɵdefineNgModule({ type: DragDropModule });
-DragDropModule.ɵinj = /*@__PURE__*/ ɵngcc0.ɵɵdefineInjector({ providers: [
- DragDrop,
- ], imports: [CdkScrollableModule] });
-(function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(DragDropModule, [{
- type: NgModule,
- args: [{
- declarations: [
- CdkDropList,
- CdkDropListGroup,
- CdkDrag,
- CdkDragHandle,
- CdkDragPreview,
- CdkDragPlaceholder,
- ],
- exports: [
- CdkScrollableModule,
- CdkDropList,
- CdkDropListGroup,
- CdkDrag,
- CdkDragHandle,
- CdkDragPreview,
- CdkDragPlaceholder,
- ],
- providers: [
- DragDrop,
- ]
- }]
- }], null, null); })();
-(function () { (typeof ngJitMode === "undefined" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(DragDropModule, { declarations: function () { return [CdkDropList, CdkDropListGroup, CdkDrag, CdkDragHandle, CdkDragPreview, CdkDragPlaceholder]; }, exports: function () { return [CdkScrollableModule, CdkDropList, CdkDropListGroup, CdkDrag, CdkDragHandle, CdkDragPreview, CdkDragPlaceholder]; } }); })();
-
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-/**
- * Generated bundle index. Do not edit.
- */
-
-export { CDK_DRAG_CONFIG, CDK_DRAG_HANDLE, CDK_DRAG_PARENT, CDK_DRAG_PLACEHOLDER, CDK_DRAG_PREVIEW, CDK_DROP_LIST, CDK_DROP_LIST_GROUP, CdkDrag, CdkDragHandle, CdkDragPlaceholder, CdkDragPreview, CdkDropList, CdkDropListGroup, DragDrop, DragDropModule, DragDropRegistry, DragRef, DropListRef, copyArrayItem, moveItemInArray, transferArrayItem };
-
-//# sourceMappingURL=drag-drop.js.map
Index: ip-planner-front/node_modules/@angular/cdk/__ivy_ngcc__/fesm2015/drag-drop.js.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/__ivy_ngcc__/fesm2015/drag-drop.js.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Extended CSSStyleDeclaration that includes a couple of drag-related\n * properties that aren't in the built-in TS typings.\n */\n export interface DragCSSStyleDeclaration extends CSSStyleDeclaration {\n msScrollSnapType: string;\n scrollSnapType: string;\n}\n\n/**\n * Shallow-extends a stylesheet object with another stylesheet-like object.\n * Note that the keys in `source` have to be dash-cased.\n * @docs-private\n */\nexport function extendStyles(dest: CSSStyleDeclaration,\n source: Record,\n importantProperties?: Set) {\n for (let key in source) {\n if (source.hasOwnProperty(key)) {\n const value = source[key];\n\n if (value) {\n dest.setProperty(key, value, importantProperties?.has(key) ? 'important' : '');\n } else {\n dest.removeProperty(key);\n }\n }\n }\n\n return dest;\n}\n\n\n/**\n * Toggles whether the native drag interactions should be enabled for an element.\n * @param element Element on which to toggle the drag interactions.\n * @param enable Whether the drag interactions should be enabled.\n * @docs-private\n */\nexport function toggleNativeDragInteractions(element: HTMLElement, enable: boolean) {\n const userSelect = enable ? '' : 'none';\n\n extendStyles(element.style, {\n 'touch-action': enable ? '' : 'none',\n '-webkit-user-drag': enable ? '' : 'none',\n '-webkit-tap-highlight-color': enable ? '' : 'transparent',\n 'user-select': userSelect,\n '-ms-user-select': userSelect,\n '-webkit-user-select': userSelect,\n '-moz-user-select': userSelect\n });\n}\n\n/**\n * Toggles whether an element is visible while preserving its dimensions.\n * @param element Element whose visibility to toggle\n * @param enable Whether the element should be visible.\n * @param importantProperties Properties to be set as `!important`.\n * @docs-private\n */\nexport function toggleVisibility(element: HTMLElement,\n enable: boolean,\n importantProperties?: Set) {\n extendStyles(element.style, {\n position: enable ? '' : 'fixed',\n top: enable ? '' : '0',\n opacity: enable ? '' : '0',\n left: enable ? '' : '-999em'\n }, importantProperties);\n}\n\n/**\n * Combines a transform string with an optional other transform\n * that exited before the base transform was applied.\n */\nexport function combineTransforms(transform: string, initialTransform?: string): string {\n return initialTransform && initialTransform != 'none' ?\n (transform + ' ' + initialTransform) :\n transform;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Parses a CSS time value to milliseconds. */\nfunction parseCssTimeUnitsToMs(value: string): number {\n // Some browsers will return it in seconds, whereas others will return milliseconds.\n const multiplier = value.toLowerCase().indexOf('ms') > -1 ? 1 : 1000;\n return parseFloat(value) * multiplier;\n}\n\n/** Gets the transform transition duration, including the delay, of an element in milliseconds. */\nexport function getTransformTransitionDurationInMs(element: HTMLElement): number {\n const computedStyle = getComputedStyle(element);\n const transitionedProperties = parseCssPropertyValue(computedStyle, 'transition-property');\n const property = transitionedProperties.find(prop => prop === 'transform' || prop === 'all');\n\n // If there's no transition for `all` or `transform`, we shouldn't do anything.\n if (!property) {\n return 0;\n }\n\n // Get the index of the property that we're interested in and match\n // it up to the same index in `transition-delay` and `transition-duration`.\n const propertyIndex = transitionedProperties.indexOf(property);\n const rawDurations = parseCssPropertyValue(computedStyle, 'transition-duration');\n const rawDelays = parseCssPropertyValue(computedStyle, 'transition-delay');\n\n return parseCssTimeUnitsToMs(rawDurations[propertyIndex]) +\n parseCssTimeUnitsToMs(rawDelays[propertyIndex]);\n}\n\n/** Parses out multiple values from a computed style into an array. */\nfunction parseCssPropertyValue(computedStyle: CSSStyleDeclaration, name: string): string[] {\n const value = computedStyle.getPropertyValue(name);\n return value.split(',').map(part => part.trim());\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Gets a mutable version of an element's bounding `ClientRect`. */\nexport function getMutableClientRect(element: Element): ClientRect {\n const clientRect = element.getBoundingClientRect();\n\n // We need to clone the `clientRect` here, because all the values on it are readonly\n // and we need to be able to update them. Also we can't use a spread here, because\n // the values on a `ClientRect` aren't own properties. See:\n // https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect#Notes\n return {\n top: clientRect.top,\n right: clientRect.right,\n bottom: clientRect.bottom,\n left: clientRect.left,\n width: clientRect.width,\n height: clientRect.height\n };\n}\n\n/**\n * Checks whether some coordinates are within a `ClientRect`.\n * @param clientRect ClientRect that is being checked.\n * @param x Coordinates along the X axis.\n * @param y Coordinates along the Y axis.\n */\nexport function isInsideClientRect(clientRect: ClientRect, x: number, y: number) {\n const {top, bottom, left, right} = clientRect;\n return y >= top && y <= bottom && x >= left && x <= right;\n}\n\n/**\n * Updates the top/left positions of a `ClientRect`, as well as their bottom/right counterparts.\n * @param clientRect `ClientRect` that should be updated.\n * @param top Amount to add to the `top` position.\n * @param left Amount to add to the `left` position.\n */\nexport function adjustClientRect(clientRect: ClientRect, top: number, left: number) {\n clientRect.top += top;\n clientRect.bottom = clientRect.top + clientRect.height;\n\n clientRect.left += left;\n clientRect.right = clientRect.left + clientRect.width;\n}\n\n/**\n * Checks whether the pointer coordinates are close to a ClientRect.\n * @param rect ClientRect to check against.\n * @param threshold Threshold around the ClientRect.\n * @param pointerX Coordinates along the X axis.\n * @param pointerY Coordinates along the Y axis.\n */\nexport function isPointerNearClientRect(rect: ClientRect,\n threshold: number,\n pointerX: number,\n pointerY: number): boolean {\n const {top, right, bottom, left, width, height} = rect;\n const xThreshold = width * threshold;\n const yThreshold = height * threshold;\n\n return pointerY > top - yThreshold && pointerY < bottom + yThreshold &&\n pointerX > left - xThreshold && pointerX < right + xThreshold;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ViewportRuler} from '@angular/cdk/scrolling';\nimport {_getEventTarget} from '@angular/cdk/platform';\nimport {getMutableClientRect, adjustClientRect} from './client-rect';\n\n/** Object holding the scroll position of something. */\ninterface ScrollPosition {\n top: number;\n left: number;\n}\n\n/** Keeps track of the scroll position and dimensions of the parents of an element. */\nexport class ParentPositionTracker {\n /** Cached positions of the scrollable parent elements. */\n readonly positions = new Map();\n\n constructor(private _document: Document, private _viewportRuler: ViewportRuler) {}\n\n /** Clears the cached positions. */\n clear() {\n this.positions.clear();\n }\n\n /** Caches the positions. Should be called at the beginning of a drag sequence. */\n cache(elements: readonly HTMLElement[]) {\n this.clear();\n this.positions.set(this._document, {\n scrollPosition: this._viewportRuler.getViewportScrollPosition(),\n });\n\n elements.forEach(element => {\n this.positions.set(element, {\n scrollPosition: {top: element.scrollTop, left: element.scrollLeft},\n clientRect: getMutableClientRect(element)\n });\n });\n }\n\n /** Handles scrolling while a drag is taking place. */\n handleScroll(event: Event): ScrollPosition | null {\n const target = _getEventTarget(event)!;\n const cachedPosition = this.positions.get(target);\n\n if (!cachedPosition) {\n return null;\n }\n\n // Used when figuring out whether an element is inside the scroll parent. If the scrolled\n // parent is the `document`, we use the `documentElement`, because IE doesn't support\n // `contains` on the `document`.\n const scrolledParentNode = target === this._document ? target.documentElement : target;\n const scrollPosition = cachedPosition.scrollPosition;\n let newTop: number;\n let newLeft: number;\n\n if (target === this._document) {\n const viewportScrollPosition = this._viewportRuler!.getViewportScrollPosition();\n newTop = viewportScrollPosition.top;\n newLeft = viewportScrollPosition.left;\n } else {\n newTop = (target as HTMLElement).scrollTop;\n newLeft = (target as HTMLElement).scrollLeft;\n }\n\n const topDifference = scrollPosition.top - newTop;\n const leftDifference = scrollPosition.left - newLeft;\n\n // Go through and update the cached positions of the scroll\n // parents that are inside the element that was scrolled.\n this.positions.forEach((position, node) => {\n if (position.clientRect && target !== node && scrolledParentNode.contains(node)) {\n adjustClientRect(position.clientRect, topDifference, leftDifference);\n }\n });\n\n scrollPosition.top = newTop;\n scrollPosition.left = newLeft;\n\n return {top: topDifference, left: leftDifference};\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Creates a deep clone of an element. */\nexport function deepCloneNode(node: HTMLElement): HTMLElement {\n const clone = node.cloneNode(true) as HTMLElement;\n const descendantsWithId = clone.querySelectorAll('[id]');\n const nodeName = node.nodeName.toLowerCase();\n\n // Remove the `id` to avoid having multiple elements with the same id on the page.\n clone.removeAttribute('id');\n\n for (let i = 0; i < descendantsWithId.length; i++) {\n descendantsWithId[i].removeAttribute('id');\n }\n\n if (nodeName === 'canvas') {\n transferCanvasData(node as HTMLCanvasElement, clone as HTMLCanvasElement);\n } else if (nodeName === 'input' || nodeName === 'select' || nodeName === 'textarea') {\n transferInputData(node as HTMLInputElement, clone as HTMLInputElement);\n }\n\n transferData('canvas', node, clone, transferCanvasData);\n transferData('input, textarea, select', node, clone, transferInputData);\n return clone;\n}\n\n/** Matches elements between an element and its clone and allows for their data to be cloned. */\nfunction transferData(selector: string, node: HTMLElement, clone: HTMLElement,\n callback: (source: T, clone: T) => void) {\n const descendantElements = node.querySelectorAll(selector);\n\n if (descendantElements.length) {\n const cloneElements = clone.querySelectorAll(selector);\n\n for (let i = 0; i < descendantElements.length; i++) {\n callback(descendantElements[i], cloneElements[i]);\n }\n }\n}\n\n// Counter for unique cloned radio button names.\nlet cloneUniqueId = 0;\n\n/** Transfers the data of one input element to another. */\nfunction transferInputData(source: Element & {value: string},\n clone: Element & {value: string; name: string; type: string}) {\n // Browsers throw an error when assigning the value of a file input programmatically.\n if (clone.type !== 'file') {\n clone.value = source.value;\n }\n\n // Radio button `name` attributes must be unique for radio button groups\n // otherwise original radio buttons can lose their checked state\n // once the clone is inserted in the DOM.\n if (clone.type === 'radio' && clone.name) {\n clone.name = `mat-clone-${clone.name}-${cloneUniqueId++}`;\n }\n}\n\n/** Transfers the data of one canvas element to another. */\nfunction transferCanvasData(source: HTMLCanvasElement, clone: HTMLCanvasElement) {\n const context = clone.getContext('2d');\n\n if (context) {\n // In some cases `drawImage` can throw (e.g. if the canvas size is 0x0).\n // We can't do much about it so just ignore the error.\n try {\n context.drawImage(source, 0, 0);\n } catch {}\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {EmbeddedViewRef, ElementRef, NgZone, ViewContainerRef, TemplateRef} from '@angular/core';\nimport {ViewportRuler} from '@angular/cdk/scrolling';\nimport {Direction} from '@angular/cdk/bidi';\nimport {\n normalizePassiveListenerOptions,\n _getEventTarget,\n _getShadowRoot,\n} from '@angular/cdk/platform';\nimport {coerceBooleanProperty, coerceElement} from '@angular/cdk/coercion';\nimport {\n isFakeMousedownFromScreenReader,\n isFakeTouchstartFromScreenReader,\n} from '@angular/cdk/a11y';\nimport {Subscription, Subject, Observable} from 'rxjs';\nimport {DropListRefInternal as DropListRef} from './drop-list-ref';\nimport {DragDropRegistry} from './drag-drop-registry';\nimport {\n combineTransforms,\n extendStyles,\n toggleNativeDragInteractions,\n toggleVisibility,\n} from './drag-styling';\nimport {getTransformTransitionDurationInMs} from './transition-duration';\nimport {getMutableClientRect, adjustClientRect} from './client-rect';\nimport {ParentPositionTracker} from './parent-position-tracker';\nimport {deepCloneNode} from './clone-node';\n\n/** Object that can be used to configure the behavior of DragRef. */\nexport interface DragRefConfig {\n /**\n * Minimum amount of pixels that the user should\n * drag, before the CDK initiates a drag sequence.\n */\n dragStartThreshold: number;\n\n /**\n * Amount the pixels the user should drag before the CDK\n * considers them to have changed the drag direction.\n */\n pointerDirectionChangeThreshold: number;\n\n /** `z-index` for the absolutely-positioned elements that are created by the drag item. */\n zIndex?: number;\n\n /** Ref that the current drag item is nested in. */\n parentDragRef?: DragRef;\n}\n\n/** Options that can be used to bind a passive event listener. */\nconst passiveEventListenerOptions = normalizePassiveListenerOptions({passive: true});\n\n/** Options that can be used to bind an active event listener. */\nconst activeEventListenerOptions = normalizePassiveListenerOptions({passive: false});\n\n/**\n * Time in milliseconds for which to ignore mouse events, after\n * receiving a touch event. Used to avoid doing double work for\n * touch devices where the browser fires fake mouse events, in\n * addition to touch events.\n */\nconst MOUSE_EVENT_IGNORE_TIME = 800;\n\n// TODO(crisbeto): add an API for moving a draggable up/down the\n// list programmatically. Useful for keyboard controls.\n\n/**\n * Internal compile-time-only representation of a `DragRef`.\n * Used to avoid circular import issues between the `DragRef` and the `DropListRef`.\n * @docs-private\n */\nexport interface DragRefInternal extends DragRef {}\n\n/** Template that can be used to create a drag helper element (e.g. a preview or a placeholder). */\ninterface DragHelperTemplate {\n template: TemplateRef | null;\n viewContainer: ViewContainerRef;\n context: T;\n}\n\n/** Template that can be used to create a drag preview element. */\ninterface DragPreviewTemplate extends DragHelperTemplate {\n matchSize?: boolean;\n}\n\n/** Point on the page or within an element. */\nexport interface Point {\n x: number;\n y: number;\n}\n\n/** Inline styles to be set as `!important` while dragging. */\nconst dragImportantProperties = new Set([\n // Needs to be important, because some `mat-table` sets `position: sticky !important`. See #22781.\n 'position'\n]);\n\n/**\n * Possible places into which the preview of a drag item can be inserted.\n * - `global` - Preview will be inserted at the bottom of the ``. The advantage is that\n * you don't have to worry about `overflow: hidden` or `z-index`, but the item won't retain\n * its inherited styles.\n * - `parent` - Preview will be inserted into the parent of the drag item. The advantage is that\n * inherited styles will be preserved, but it may be clipped by `overflow: hidden` or not be\n * visible due to `z-index`. Furthermore, the preview is going to have an effect over selectors\n * like `:nth-child` and some flexbox configurations.\n * - `ElementRef | HTMLElement` - Preview will be inserted into a specific element.\n * Same advantages and disadvantages as `parent`.\n */\nexport type PreviewContainer = 'global' | 'parent' | ElementRef | HTMLElement;\n\n/**\n * Reference to a draggable item. Used to manipulate or dispose of the item.\n */\nexport class DragRef {\n /** Element displayed next to the user's pointer while the element is dragged. */\n private _preview: HTMLElement;\n\n /** Reference to the view of the preview element. */\n private _previewRef: EmbeddedViewRef | null;\n\n /** Container into which to insert the preview. */\n private _previewContainer: PreviewContainer | undefined;\n\n /** Reference to the view of the placeholder element. */\n private _placeholderRef: EmbeddedViewRef | null;\n\n /** Element that is rendered instead of the draggable item while it is being sorted. */\n private _placeholder: HTMLElement;\n\n /** Coordinates within the element at which the user picked up the element. */\n private _pickupPositionInElement: Point;\n\n /** Coordinates on the page at which the user picked up the element. */\n private _pickupPositionOnPage: Point;\n\n /**\n * Anchor node used to save the place in the DOM where the element was\n * picked up so that it can be restored at the end of the drag sequence.\n */\n private _anchor: Comment;\n\n /**\n * CSS `transform` applied to the element when it isn't being dragged. We need a\n * passive transform in order for the dragged element to retain its new position\n * after the user has stopped dragging and because we need to know the relative\n * position in case they start dragging again. This corresponds to `element.style.transform`.\n */\n private _passiveTransform: Point = {x: 0, y: 0};\n\n /** CSS `transform` that is applied to the element while it's being dragged. */\n private _activeTransform: Point = {x: 0, y: 0};\n\n /** Inline `transform` value that the element had before the first dragging sequence. */\n private _initialTransform?: string;\n\n /**\n * Whether the dragging sequence has been started. Doesn't\n * necessarily mean that the element has been moved.\n */\n private _hasStartedDragging = false;\n\n /** Whether the element has moved since the user started dragging it. */\n private _hasMoved: boolean;\n\n /** Drop container in which the DragRef resided when dragging began. */\n private _initialContainer: DropListRef;\n\n /** Index at which the item started in its initial container. */\n private _initialIndex: number;\n\n /** Cached positions of scrollable parent elements. */\n private _parentPositions: ParentPositionTracker;\n\n /** Emits when the item is being moved. */\n private readonly _moveEvents = new Subject<{\n source: DragRef;\n pointerPosition: {x: number, y: number};\n event: MouseEvent | TouchEvent;\n distance: Point;\n delta: {x: -1 | 0 | 1, y: -1 | 0 | 1};\n }>();\n\n /** Keeps track of the direction in which the user is dragging along each axis. */\n private _pointerDirectionDelta: {x: -1 | 0 | 1, y: -1 | 0 | 1};\n\n /** Pointer position at which the last change in the delta occurred. */\n private _pointerPositionAtLastDirectionChange: Point;\n\n /** Position of the pointer at the last pointer event. */\n private _lastKnownPointerPosition: Point;\n\n /**\n * Root DOM node of the drag instance. This is the element that will\n * be moved around as the user is dragging.\n */\n private _rootElement: HTMLElement;\n\n /**\n * Nearest ancestor SVG, relative to which coordinates are calculated if dragging SVGElement\n */\n private _ownerSVGElement: SVGSVGElement | null;\n\n /**\n * Inline style value of `-webkit-tap-highlight-color` at the time the\n * dragging was started. Used to restore the value once we're done dragging.\n */\n private _rootElementTapHighlight: string;\n\n /** Subscription to pointer movement events. */\n private _pointerMoveSubscription = Subscription.EMPTY;\n\n /** Subscription to the event that is dispatched when the user lifts their pointer. */\n private _pointerUpSubscription = Subscription.EMPTY;\n\n /** Subscription to the viewport being scrolled. */\n private _scrollSubscription = Subscription.EMPTY;\n\n /** Subscription to the viewport being resized. */\n private _resizeSubscription = Subscription.EMPTY;\n\n /**\n * Time at which the last touch event occurred. Used to avoid firing the same\n * events multiple times on touch devices where the browser will fire a fake\n * mouse event for each touch event, after a certain time.\n */\n private _lastTouchEventTime: number;\n\n /** Time at which the last dragging sequence was started. */\n private _dragStartTime: number;\n\n /** Cached reference to the boundary element. */\n private _boundaryElement: HTMLElement | null = null;\n\n /** Whether the native dragging interactions have been enabled on the root element. */\n private _nativeInteractionsEnabled = true;\n\n /** Cached dimensions of the preview element. */\n private _previewRect?: ClientRect;\n\n /** Cached dimensions of the boundary element. */\n private _boundaryRect?: ClientRect;\n\n /** Element that will be used as a template to create the draggable item's preview. */\n private _previewTemplate?: DragPreviewTemplate | null;\n\n /** Template for placeholder element rendered to show where a draggable would be dropped. */\n private _placeholderTemplate?: DragHelperTemplate | null;\n\n /** Elements that can be used to drag the draggable item. */\n private _handles: HTMLElement[] = [];\n\n /** Registered handles that are currently disabled. */\n private _disabledHandles = new Set();\n\n /** Droppable container that the draggable is a part of. */\n private _dropContainer?: DropListRef;\n\n /** Layout direction of the item. */\n private _direction: Direction = 'ltr';\n\n /** Ref that the current drag item is nested in. */\n private _parentDragRef: DragRef | null;\n\n /**\n * Cached shadow root that the element is placed in. `null` means that the element isn't in\n * the shadow DOM and `undefined` means that it hasn't been resolved yet. Should be read via\n * `_getShadowRoot`, not directly.\n */\n private _cachedShadowRoot: ShadowRoot | null | undefined;\n\n /** Axis along which dragging is locked. */\n lockAxis: 'x' | 'y';\n\n /**\n * Amount of milliseconds to wait after the user has put their\n * pointer down before starting to drag the element.\n */\n dragStartDelay: number | {touch: number, mouse: number} = 0;\n\n /** Class to be added to the preview element. */\n previewClass: string|string[]|undefined;\n\n /** Whether starting to drag this element is disabled. */\n get disabled(): boolean {\n return this._disabled || !!(this._dropContainer && this._dropContainer.disabled);\n }\n set disabled(value: boolean) {\n const newValue = coerceBooleanProperty(value);\n\n if (newValue !== this._disabled) {\n this._disabled = newValue;\n this._toggleNativeDragInteractions();\n this._handles.forEach(handle => toggleNativeDragInteractions(handle, newValue));\n }\n }\n private _disabled = false;\n\n /** Emits as the drag sequence is being prepared. */\n readonly beforeStarted = new Subject();\n\n /** Emits when the user starts dragging the item. */\n readonly started = new Subject<{source: DragRef}>();\n\n /** Emits when the user has released a drag item, before any animations have started. */\n readonly released = new Subject<{source: DragRef}>();\n\n /** Emits when the user stops dragging an item in the container. */\n readonly ended = new Subject<{source: DragRef, distance: Point, dropPoint: Point}>();\n\n /** Emits when the user has moved the item into a new container. */\n readonly entered = new Subject<{container: DropListRef, item: DragRef, currentIndex: number}>();\n\n /** Emits when the user removes the item its container by dragging it into another container. */\n readonly exited = new Subject<{container: DropListRef, item: DragRef}>();\n\n /** Emits when the user drops the item inside a container. */\n readonly dropped = new Subject<{\n previousIndex: number;\n currentIndex: number;\n item: DragRef;\n container: DropListRef;\n previousContainer: DropListRef;\n distance: Point;\n dropPoint: Point;\n isPointerOverContainer: boolean;\n }>();\n\n /**\n * Emits as the user is dragging the item. Use with caution,\n * because this event will fire for every pixel that the user has dragged.\n */\n readonly moved: Observable<{\n source: DragRef;\n pointerPosition: {x: number, y: number};\n event: MouseEvent | TouchEvent;\n distance: Point;\n delta: {x: -1 | 0 | 1, y: -1 | 0 | 1};\n }> = this._moveEvents;\n\n /** Arbitrary data that can be attached to the drag item. */\n data: T;\n\n /**\n * Function that can be used to customize the logic of how the position of the drag item\n * is limited while it's being dragged. Gets called with a point containing the current position\n * of the user's pointer on the page and should return a point describing where the item should\n * be rendered.\n */\n constrainPosition?: (point: Point, dragRef: DragRef) => Point;\n\n constructor(\n element: ElementRef | HTMLElement,\n private _config: DragRefConfig,\n private _document: Document,\n private _ngZone: NgZone,\n private _viewportRuler: ViewportRuler,\n private _dragDropRegistry: DragDropRegistry) {\n\n this.withRootElement(element).withParent(_config.parentDragRef || null);\n this._parentPositions = new ParentPositionTracker(_document, _viewportRuler);\n _dragDropRegistry.registerDragItem(this);\n }\n\n /**\n * Returns the element that is being used as a placeholder\n * while the current element is being dragged.\n */\n getPlaceholderElement(): HTMLElement {\n return this._placeholder;\n }\n\n /** Returns the root draggable element. */\n getRootElement(): HTMLElement {\n return this._rootElement;\n }\n\n /**\n * Gets the currently-visible element that represents the drag item.\n * While dragging this is the placeholder, otherwise it's the root element.\n */\n getVisibleElement(): HTMLElement {\n return this.isDragging() ? this.getPlaceholderElement() : this.getRootElement();\n }\n\n /** Registers the handles that can be used to drag the element. */\n withHandles(handles: (HTMLElement | ElementRef)[]): this {\n this._handles = handles.map(handle => coerceElement(handle));\n this._handles.forEach(handle => toggleNativeDragInteractions(handle, this.disabled));\n this._toggleNativeDragInteractions();\n\n // Delete any lingering disabled handles that may have been destroyed. Note that we re-create\n // the set, rather than iterate over it and filter out the destroyed handles, because while\n // the ES spec allows for sets to be modified while they're being iterated over, some polyfills\n // use an array internally which may throw an error.\n const disabledHandles = new Set();\n this._disabledHandles.forEach(handle => {\n if (this._handles.indexOf(handle) > -1) {\n disabledHandles.add(handle);\n }\n });\n this._disabledHandles = disabledHandles;\n return this;\n }\n\n /**\n * Registers the template that should be used for the drag preview.\n * @param template Template that from which to stamp out the preview.\n */\n withPreviewTemplate(template: DragPreviewTemplate | null): this {\n this._previewTemplate = template;\n return this;\n }\n\n /**\n * Registers the template that should be used for the drag placeholder.\n * @param template Template that from which to stamp out the placeholder.\n */\n withPlaceholderTemplate(template: DragHelperTemplate | null): this {\n this._placeholderTemplate = template;\n return this;\n }\n\n /**\n * Sets an alternate drag root element. The root element is the element that will be moved as\n * the user is dragging. Passing an alternate root element is useful when trying to enable\n * dragging on an element that you might not have access to.\n */\n withRootElement(rootElement: ElementRef | HTMLElement): this {\n const element = coerceElement(rootElement);\n\n if (element !== this._rootElement) {\n if (this._rootElement) {\n this._removeRootElementListeners(this._rootElement);\n }\n\n this._ngZone.runOutsideAngular(() => {\n element.addEventListener('mousedown', this._pointerDown, activeEventListenerOptions);\n element.addEventListener('touchstart', this._pointerDown, passiveEventListenerOptions);\n });\n this._initialTransform = undefined;\n this._rootElement = element;\n }\n\n if (typeof SVGElement !== 'undefined' && this._rootElement instanceof SVGElement) {\n this._ownerSVGElement = this._rootElement.ownerSVGElement;\n }\n\n return this;\n }\n\n /**\n * Element to which the draggable's position will be constrained.\n */\n withBoundaryElement(boundaryElement: ElementRef | HTMLElement | null): this {\n this._boundaryElement = boundaryElement ? coerceElement(boundaryElement) : null;\n this._resizeSubscription.unsubscribe();\n if (boundaryElement) {\n this._resizeSubscription = this._viewportRuler\n .change(10)\n .subscribe(() => this._containInsideBoundaryOnResize());\n }\n return this;\n }\n\n /** Sets the parent ref that the ref is nested in. */\n withParent(parent: DragRef | null): this {\n this._parentDragRef = parent;\n return this;\n }\n\n /** Removes the dragging functionality from the DOM element. */\n dispose() {\n this._removeRootElementListeners(this._rootElement);\n\n // Do this check before removing from the registry since it'll\n // stop being considered as dragged once it is removed.\n if (this.isDragging()) {\n // Since we move out the element to the end of the body while it's being\n // dragged, we have to make sure that it's removed if it gets destroyed.\n removeNode(this._rootElement);\n }\n\n removeNode(this._anchor);\n this._destroyPreview();\n this._destroyPlaceholder();\n this._dragDropRegistry.removeDragItem(this);\n this._removeSubscriptions();\n this.beforeStarted.complete();\n this.started.complete();\n this.released.complete();\n this.ended.complete();\n this.entered.complete();\n this.exited.complete();\n this.dropped.complete();\n this._moveEvents.complete();\n this._handles = [];\n this._disabledHandles.clear();\n this._dropContainer = undefined;\n this._resizeSubscription.unsubscribe();\n this._parentPositions.clear();\n this._boundaryElement = this._rootElement = this._ownerSVGElement = this._placeholderTemplate =\n this._previewTemplate = this._anchor = this._parentDragRef = null!;\n }\n\n /** Checks whether the element is currently being dragged. */\n isDragging(): boolean {\n return this._hasStartedDragging && this._dragDropRegistry.isDragging(this);\n }\n\n /** Resets a standalone drag item to its initial position. */\n reset(): void {\n this._rootElement.style.transform = this._initialTransform || '';\n this._activeTransform = {x: 0, y: 0};\n this._passiveTransform = {x: 0, y: 0};\n }\n\n /**\n * Sets a handle as disabled. While a handle is disabled, it'll capture and interrupt dragging.\n * @param handle Handle element that should be disabled.\n */\n disableHandle(handle: HTMLElement) {\n if (!this._disabledHandles.has(handle) && this._handles.indexOf(handle) > -1) {\n this._disabledHandles.add(handle);\n toggleNativeDragInteractions(handle, true);\n }\n }\n\n /**\n * Enables a handle, if it has been disabled.\n * @param handle Handle element to be enabled.\n */\n enableHandle(handle: HTMLElement) {\n if (this._disabledHandles.has(handle)) {\n this._disabledHandles.delete(handle);\n toggleNativeDragInteractions(handle, this.disabled);\n }\n }\n\n /** Sets the layout direction of the draggable item. */\n withDirection(direction: Direction): this {\n this._direction = direction;\n return this;\n }\n\n /** Sets the container that the item is part of. */\n _withDropContainer(container: DropListRef) {\n this._dropContainer = container;\n }\n\n /**\n * Gets the current position in pixels the draggable outside of a drop container.\n */\n getFreeDragPosition(): Readonly {\n const position = this.isDragging() ? this._activeTransform : this._passiveTransform;\n return {x: position.x, y: position.y};\n }\n\n /**\n * Sets the current position in pixels the draggable outside of a drop container.\n * @param value New position to be set.\n */\n setFreeDragPosition(value: Point): this {\n this._activeTransform = {x: 0, y: 0};\n this._passiveTransform.x = value.x;\n this._passiveTransform.y = value.y;\n\n if (!this._dropContainer) {\n this._applyRootElementTransform(value.x, value.y);\n }\n\n return this;\n }\n\n /**\n * Sets the container into which to insert the preview element.\n * @param value Container into which to insert the preview.\n */\n withPreviewContainer(value: PreviewContainer): this {\n this._previewContainer = value;\n return this;\n }\n\n /** Updates the item's sort order based on the last-known pointer position. */\n _sortFromLastPointerPosition() {\n const position = this._lastKnownPointerPosition;\n\n if (position && this._dropContainer) {\n this._updateActiveDropContainer(this._getConstrainedPointerPosition(position), position);\n }\n }\n\n /** Unsubscribes from the global subscriptions. */\n private _removeSubscriptions() {\n this._pointerMoveSubscription.unsubscribe();\n this._pointerUpSubscription.unsubscribe();\n this._scrollSubscription.unsubscribe();\n }\n\n /** Destroys the preview element and its ViewRef. */\n private _destroyPreview() {\n if (this._preview) {\n removeNode(this._preview);\n }\n\n if (this._previewRef) {\n this._previewRef.destroy();\n }\n\n this._preview = this._previewRef = null!;\n }\n\n /** Destroys the placeholder element and its ViewRef. */\n private _destroyPlaceholder() {\n if (this._placeholder) {\n removeNode(this._placeholder);\n }\n\n if (this._placeholderRef) {\n this._placeholderRef.destroy();\n }\n\n this._placeholder = this._placeholderRef = null!;\n }\n\n /** Handler for the `mousedown`/`touchstart` events. */\n private _pointerDown = (event: MouseEvent | TouchEvent) => {\n this.beforeStarted.next();\n\n // Delegate the event based on whether it started from a handle or the element itself.\n if (this._handles.length) {\n const targetHandle = this._handles.find(handle => {\n const target = _getEventTarget(event);\n return !!target && (target === handle || handle.contains(target as HTMLElement));\n });\n\n if (targetHandle && !this._disabledHandles.has(targetHandle) && !this.disabled) {\n this._initializeDragSequence(targetHandle, event);\n }\n } else if (!this.disabled) {\n this._initializeDragSequence(this._rootElement, event);\n }\n }\n\n /** Handler that is invoked when the user moves their pointer after they've initiated a drag. */\n private _pointerMove = (event: MouseEvent | TouchEvent) => {\n const pointerPosition = this._getPointerPositionOnPage(event);\n\n if (!this._hasStartedDragging) {\n const distanceX = Math.abs(pointerPosition.x - this._pickupPositionOnPage.x);\n const distanceY = Math.abs(pointerPosition.y - this._pickupPositionOnPage.y);\n const isOverThreshold = distanceX + distanceY >= this._config.dragStartThreshold;\n\n // Only start dragging after the user has moved more than the minimum distance in either\n // direction. Note that this is preferrable over doing something like `skip(minimumDistance)`\n // in the `pointerMove` subscription, because we're not guaranteed to have one move event\n // per pixel of movement (e.g. if the user moves their pointer quickly).\n if (isOverThreshold) {\n const isDelayElapsed = Date.now() >= this._dragStartTime + this._getDragStartDelay(event);\n const container = this._dropContainer;\n\n if (!isDelayElapsed) {\n this._endDragSequence(event);\n return;\n }\n\n // Prevent other drag sequences from starting while something in the container is still\n // being dragged. This can happen while we're waiting for the drop animation to finish\n // and can cause errors, because some elements might still be moving around.\n if (!container || (!container.isDragging() && !container.isReceiving())) {\n // Prevent the default action as soon as the dragging sequence is considered as\n // \"started\" since waiting for the next event can allow the device to begin scrolling.\n event.preventDefault();\n this._hasStartedDragging = true;\n this._ngZone.run(() => this._startDragSequence(event));\n }\n }\n\n return;\n }\n\n // We only need the preview dimensions if we have a boundary element.\n if (this._boundaryElement) {\n // Cache the preview element rect if we haven't cached it already or if\n // we cached it too early before the element dimensions were computed.\n if (!this._previewRect || (!this._previewRect.width && !this._previewRect.height)) {\n this._previewRect = (this._preview || this._rootElement).getBoundingClientRect();\n }\n }\n\n // We prevent the default action down here so that we know that dragging has started. This is\n // important for touch devices where doing this too early can unnecessarily block scrolling,\n // if there's a dragging delay.\n event.preventDefault();\n\n const constrainedPointerPosition = this._getConstrainedPointerPosition(pointerPosition);\n this._hasMoved = true;\n this._lastKnownPointerPosition = pointerPosition;\n this._updatePointerDirectionDelta(constrainedPointerPosition);\n\n if (this._dropContainer) {\n this._updateActiveDropContainer(constrainedPointerPosition, pointerPosition);\n } else {\n const activeTransform = this._activeTransform;\n activeTransform.x =\n constrainedPointerPosition.x - this._pickupPositionOnPage.x + this._passiveTransform.x;\n activeTransform.y =\n constrainedPointerPosition.y - this._pickupPositionOnPage.y + this._passiveTransform.y;\n\n this._applyRootElementTransform(activeTransform.x, activeTransform.y);\n\n // Apply transform as attribute if dragging and svg element to work for IE\n if (typeof SVGElement !== 'undefined' && this._rootElement instanceof SVGElement) {\n const appliedTransform = `translate(${activeTransform.x} ${activeTransform.y})`;\n this._rootElement.setAttribute('transform', appliedTransform);\n }\n }\n\n // Since this event gets fired for every pixel while dragging, we only\n // want to fire it if the consumer opted into it. Also we have to\n // re-enter the zone because we run all of the events on the outside.\n if (this._moveEvents.observers.length) {\n this._ngZone.run(() => {\n this._moveEvents.next({\n source: this,\n pointerPosition: constrainedPointerPosition,\n event,\n distance: this._getDragDistance(constrainedPointerPosition),\n delta: this._pointerDirectionDelta\n });\n });\n }\n }\n\n /** Handler that is invoked when the user lifts their pointer up, after initiating a drag. */\n private _pointerUp = (event: MouseEvent | TouchEvent) => {\n this._endDragSequence(event);\n }\n\n /**\n * Clears subscriptions and stops the dragging sequence.\n * @param event Browser event object that ended the sequence.\n */\n private _endDragSequence(event: MouseEvent | TouchEvent) {\n // Note that here we use `isDragging` from the service, rather than from `this`.\n // The difference is that the one from the service reflects whether a dragging sequence\n // has been initiated, whereas the one on `this` includes whether the user has passed\n // the minimum dragging threshold.\n if (!this._dragDropRegistry.isDragging(this)) {\n return;\n }\n\n this._removeSubscriptions();\n this._dragDropRegistry.stopDragging(this);\n this._toggleNativeDragInteractions();\n\n if (this._handles) {\n this._rootElement.style.webkitTapHighlightColor = this._rootElementTapHighlight;\n }\n\n if (!this._hasStartedDragging) {\n return;\n }\n\n this.released.next({source: this});\n\n if (this._dropContainer) {\n // Stop scrolling immediately, instead of waiting for the animation to finish.\n this._dropContainer._stopScrolling();\n this._animatePreviewToPlaceholder().then(() => {\n this._cleanupDragArtifacts(event);\n this._cleanupCachedDimensions();\n this._dragDropRegistry.stopDragging(this);\n });\n } else {\n // Convert the active transform into a passive one. This means that next time\n // the user starts dragging the item, its position will be calculated relatively\n // to the new passive transform.\n this._passiveTransform.x = this._activeTransform.x;\n const pointerPosition = this._getPointerPositionOnPage(event);\n this._passiveTransform.y = this._activeTransform.y;\n this._ngZone.run(() => {\n this.ended.next({\n source: this,\n distance: this._getDragDistance(pointerPosition),\n dropPoint: pointerPosition\n });\n });\n this._cleanupCachedDimensions();\n this._dragDropRegistry.stopDragging(this);\n }\n }\n\n /** Starts the dragging sequence. */\n private _startDragSequence(event: MouseEvent | TouchEvent) {\n if (isTouchEvent(event)) {\n this._lastTouchEventTime = Date.now();\n }\n\n this._toggleNativeDragInteractions();\n\n const dropContainer = this._dropContainer;\n\n if (dropContainer) {\n const element = this._rootElement;\n const parent = element.parentNode as HTMLElement;\n const placeholder = this._placeholder = this._createPlaceholderElement();\n const anchor = this._anchor = this._anchor || this._document.createComment('');\n\n // Needs to happen before the root element is moved.\n const shadowRoot = this._getShadowRoot();\n\n // Insert an anchor node so that we can restore the element's position in the DOM.\n parent.insertBefore(anchor, element);\n\n // There's no risk of transforms stacking when inside a drop container so\n // we can keep the initial transform up to date any time dragging starts.\n this._initialTransform = element.style.transform || '';\n\n // Create the preview after the initial transform has\n // been cached, because it can be affected by the transform.\n this._preview = this._createPreviewElement();\n\n // We move the element out at the end of the body and we make it hidden, because keeping it in\n // place will throw off the consumer's `:last-child` selectors. We can't remove the element\n // from the DOM completely, because iOS will stop firing all subsequent events in the chain.\n toggleVisibility(element, false, dragImportantProperties);\n this._document.body.appendChild(parent.replaceChild(placeholder, element));\n this._getPreviewInsertionPoint(parent, shadowRoot).appendChild(this._preview);\n this.started.next({source: this}); // Emit before notifying the container.\n dropContainer.start();\n this._initialContainer = dropContainer;\n this._initialIndex = dropContainer.getItemIndex(this);\n } else {\n this.started.next({source: this});\n this._initialContainer = this._initialIndex = undefined!;\n }\n\n // Important to run after we've called `start` on the parent container\n // so that it has had time to resolve its scrollable parents.\n this._parentPositions.cache(dropContainer ? dropContainer.getScrollableParents() : []);\n }\n\n /**\n * Sets up the different variables and subscriptions\n * that will be necessary for the dragging sequence.\n * @param referenceElement Element that started the drag sequence.\n * @param event Browser event object that started the sequence.\n */\n private _initializeDragSequence(referenceElement: HTMLElement, event: MouseEvent | TouchEvent) {\n // Stop propagation if the item is inside another\n // draggable so we don't start multiple drag sequences.\n if (this._parentDragRef) {\n event.stopPropagation();\n }\n\n const isDragging = this.isDragging();\n const isTouchSequence = isTouchEvent(event);\n const isAuxiliaryMouseButton = !isTouchSequence && (event as MouseEvent).button !== 0;\n const rootElement = this._rootElement;\n const target = _getEventTarget(event);\n const isSyntheticEvent = !isTouchSequence && this._lastTouchEventTime &&\n this._lastTouchEventTime + MOUSE_EVENT_IGNORE_TIME > Date.now();\n const isFakeEvent = isTouchSequence ? isFakeTouchstartFromScreenReader(event as TouchEvent) :\n isFakeMousedownFromScreenReader(event as MouseEvent);\n\n // If the event started from an element with the native HTML drag&drop, it'll interfere\n // with our own dragging (e.g. `img` tags do it by default). Prevent the default action\n // to stop it from happening. Note that preventing on `dragstart` also seems to work, but\n // it's flaky and it fails if the user drags it away quickly. Also note that we only want\n // to do this for `mousedown` since doing the same for `touchstart` will stop any `click`\n // events from firing on touch devices.\n if (target && (target as HTMLElement).draggable && event.type === 'mousedown') {\n event.preventDefault();\n }\n\n // Abort if the user is already dragging or is using a mouse button other than the primary one.\n if (isDragging || isAuxiliaryMouseButton || isSyntheticEvent || isFakeEvent) {\n return;\n }\n\n // If we've got handles, we need to disable the tap highlight on the entire root element,\n // otherwise iOS will still add it, even though all the drag interactions on the handle\n // are disabled.\n if (this._handles.length) {\n this._rootElementTapHighlight = rootElement.style.webkitTapHighlightColor || '';\n rootElement.style.webkitTapHighlightColor = 'transparent';\n }\n\n this._hasStartedDragging = this._hasMoved = false;\n\n // Avoid multiple subscriptions and memory leaks when multi touch\n // (isDragging check above isn't enough because of possible temporal and/or dimensional delays)\n this._removeSubscriptions();\n this._pointerMoveSubscription = this._dragDropRegistry.pointerMove.subscribe(this._pointerMove);\n this._pointerUpSubscription = this._dragDropRegistry.pointerUp.subscribe(this._pointerUp);\n this._scrollSubscription = this._dragDropRegistry\n .scrolled(this._getShadowRoot())\n .subscribe(scrollEvent => this._updateOnScroll(scrollEvent));\n\n if (this._boundaryElement) {\n this._boundaryRect = getMutableClientRect(this._boundaryElement);\n }\n\n // If we have a custom preview we can't know ahead of time how large it'll be so we position\n // it next to the cursor. The exception is when the consumer has opted into making the preview\n // the same size as the root element, in which case we do know the size.\n const previewTemplate = this._previewTemplate;\n this._pickupPositionInElement = previewTemplate && previewTemplate.template &&\n !previewTemplate.matchSize ? {x: 0, y: 0} :\n this._getPointerPositionInElement(referenceElement, event);\n const pointerPosition = this._pickupPositionOnPage = this._lastKnownPointerPosition =\n this._getPointerPositionOnPage(event);\n this._pointerDirectionDelta = {x: 0, y: 0};\n this._pointerPositionAtLastDirectionChange = {x: pointerPosition.x, y: pointerPosition.y};\n this._dragStartTime = Date.now();\n this._dragDropRegistry.startDragging(this, event);\n }\n\n /** Cleans up the DOM artifacts that were added to facilitate the element being dragged. */\n private _cleanupDragArtifacts(event: MouseEvent | TouchEvent) {\n // Restore the element's visibility and insert it at its old position in the DOM.\n // It's important that we maintain the position, because moving the element around in the DOM\n // can throw off `NgFor` which does smart diffing and re-creates elements only when necessary,\n // while moving the existing elements in all other cases.\n toggleVisibility(this._rootElement, true, dragImportantProperties);\n this._anchor.parentNode!.replaceChild(this._rootElement, this._anchor);\n\n this._destroyPreview();\n this._destroyPlaceholder();\n this._boundaryRect = this._previewRect = this._initialTransform = undefined;\n\n // Re-enter the NgZone since we bound `document` events on the outside.\n this._ngZone.run(() => {\n const container = this._dropContainer!;\n const currentIndex = container.getItemIndex(this);\n const pointerPosition = this._getPointerPositionOnPage(event);\n const distance = this._getDragDistance(pointerPosition);\n const isPointerOverContainer = container._isOverContainer(\n pointerPosition.x, pointerPosition.y);\n\n this.ended.next({source: this, distance, dropPoint: pointerPosition});\n this.dropped.next({\n item: this,\n currentIndex,\n previousIndex: this._initialIndex,\n container: container,\n previousContainer: this._initialContainer,\n isPointerOverContainer,\n distance,\n dropPoint: pointerPosition\n });\n container.drop(this, currentIndex, this._initialIndex, this._initialContainer,\n isPointerOverContainer, distance, pointerPosition);\n this._dropContainer = this._initialContainer;\n });\n }\n\n /**\n * Updates the item's position in its drop container, or moves it\n * into a new one, depending on its current drag position.\n */\n private _updateActiveDropContainer({x, y}: Point, {x: rawX, y: rawY}: Point) {\n // Drop container that draggable has been moved into.\n let newContainer = this._initialContainer._getSiblingContainerFromPosition(this, x, y);\n\n // If we couldn't find a new container to move the item into, and the item has left its\n // initial container, check whether the it's over the initial container. This handles the\n // case where two containers are connected one way and the user tries to undo dragging an\n // item into a new container.\n if (!newContainer && this._dropContainer !== this._initialContainer &&\n this._initialContainer._isOverContainer(x, y)) {\n newContainer = this._initialContainer;\n }\n\n if (newContainer && newContainer !== this._dropContainer) {\n this._ngZone.run(() => {\n // Notify the old container that the item has left.\n this.exited.next({item: this, container: this._dropContainer!});\n this._dropContainer!.exit(this);\n // Notify the new container that the item has entered.\n this._dropContainer = newContainer!;\n this._dropContainer.enter(this, x, y, newContainer === this._initialContainer &&\n // If we're re-entering the initial container and sorting is disabled,\n // put item the into its starting index to begin with.\n newContainer.sortingDisabled ? this._initialIndex : undefined);\n this.entered.next({\n item: this,\n container: newContainer!,\n currentIndex: newContainer!.getItemIndex(this)\n });\n });\n }\n\n // Dragging may have been interrupted as a result of the events above.\n if (this.isDragging()) {\n this._dropContainer!._startScrollingIfNecessary(rawX, rawY);\n this._dropContainer!._sortItem(this, x, y, this._pointerDirectionDelta);\n this._applyPreviewTransform(\n x - this._pickupPositionInElement.x, y - this._pickupPositionInElement.y);\n }\n }\n\n /**\n * Creates the element that will be rendered next to the user's pointer\n * and will be used as a preview of the element that is being dragged.\n */\n private _createPreviewElement(): HTMLElement {\n const previewConfig = this._previewTemplate;\n const previewClass = this.previewClass;\n const previewTemplate = previewConfig ? previewConfig.template : null;\n let preview: HTMLElement;\n\n if (previewTemplate && previewConfig) {\n // Measure the element before we've inserted the preview\n // since the insertion could throw off the measurement.\n const rootRect = previewConfig.matchSize ? this._rootElement.getBoundingClientRect() : null;\n const viewRef = previewConfig.viewContainer.createEmbeddedView(previewTemplate,\n previewConfig.context);\n viewRef.detectChanges();\n preview = getRootNode(viewRef, this._document);\n this._previewRef = viewRef;\n if (previewConfig.matchSize) {\n matchElementSize(preview, rootRect!);\n } else {\n preview.style.transform =\n getTransform(this._pickupPositionOnPage.x, this._pickupPositionOnPage.y);\n }\n } else {\n const element = this._rootElement;\n preview = deepCloneNode(element);\n matchElementSize(preview, element.getBoundingClientRect());\n\n if (this._initialTransform) {\n preview.style.transform = this._initialTransform;\n }\n }\n\n extendStyles(preview.style, {\n // It's important that we disable the pointer events on the preview, because\n // it can throw off the `document.elementFromPoint` calls in the `CdkDropList`.\n 'pointer-events': 'none',\n // We have to reset the margin, because it can throw off positioning relative to the viewport.\n 'margin': '0',\n 'position': 'fixed',\n 'top': '0',\n 'left': '0',\n 'z-index': `${this._config.zIndex || 1000}`\n }, dragImportantProperties);\n\n toggleNativeDragInteractions(preview, false);\n preview.classList.add('cdk-drag-preview');\n preview.setAttribute('dir', this._direction);\n\n if (previewClass) {\n if (Array.isArray(previewClass)) {\n previewClass.forEach(className => preview.classList.add(className));\n } else {\n preview.classList.add(previewClass);\n }\n }\n\n return preview;\n }\n\n /**\n * Animates the preview element from its current position to the location of the drop placeholder.\n * @returns Promise that resolves when the animation completes.\n */\n private _animatePreviewToPlaceholder(): Promise {\n // If the user hasn't moved yet, the transitionend event won't fire.\n if (!this._hasMoved) {\n return Promise.resolve();\n }\n\n const placeholderRect = this._placeholder.getBoundingClientRect();\n\n // Apply the class that adds a transition to the preview.\n this._preview.classList.add('cdk-drag-animating');\n\n // Move the preview to the placeholder position.\n this._applyPreviewTransform(placeholderRect.left, placeholderRect.top);\n\n // If the element doesn't have a `transition`, the `transitionend` event won't fire. Since\n // we need to trigger a style recalculation in order for the `cdk-drag-animating` class to\n // apply its style, we take advantage of the available info to figure out whether we need to\n // bind the event in the first place.\n const duration = getTransformTransitionDurationInMs(this._preview);\n\n if (duration === 0) {\n return Promise.resolve();\n }\n\n return this._ngZone.runOutsideAngular(() => {\n return new Promise(resolve => {\n const handler = ((event: TransitionEvent) => {\n if (!event || (_getEventTarget(event) === this._preview &&\n event.propertyName === 'transform')) {\n this._preview?.removeEventListener('transitionend', handler);\n resolve();\n clearTimeout(timeout);\n }\n }) as EventListenerOrEventListenerObject;\n\n // If a transition is short enough, the browser might not fire the `transitionend` event.\n // Since we know how long it's supposed to take, add a timeout with a 50% buffer that'll\n // fire if the transition hasn't completed when it was supposed to.\n const timeout = setTimeout(handler as Function, duration * 1.5);\n this._preview.addEventListener('transitionend', handler);\n });\n });\n }\n\n /** Creates an element that will be shown instead of the current element while dragging. */\n private _createPlaceholderElement(): HTMLElement {\n const placeholderConfig = this._placeholderTemplate;\n const placeholderTemplate = placeholderConfig ? placeholderConfig.template : null;\n let placeholder: HTMLElement;\n\n if (placeholderTemplate) {\n this._placeholderRef = placeholderConfig!.viewContainer.createEmbeddedView(\n placeholderTemplate,\n placeholderConfig!.context\n );\n this._placeholderRef.detectChanges();\n placeholder = getRootNode(this._placeholderRef, this._document);\n } else {\n placeholder = deepCloneNode(this._rootElement);\n }\n\n placeholder.classList.add('cdk-drag-placeholder');\n return placeholder;\n }\n\n /**\n * Figures out the coordinates at which an element was picked up.\n * @param referenceElement Element that initiated the dragging.\n * @param event Event that initiated the dragging.\n */\n private _getPointerPositionInElement(referenceElement: HTMLElement,\n event: MouseEvent | TouchEvent): Point {\n const elementRect = this._rootElement.getBoundingClientRect();\n const handleElement = referenceElement === this._rootElement ? null : referenceElement;\n const referenceRect = handleElement ? handleElement.getBoundingClientRect() : elementRect;\n const point = isTouchEvent(event) ? event.targetTouches[0] : event;\n const scrollPosition = this._getViewportScrollPosition();\n const x = point.pageX - referenceRect.left - scrollPosition.left;\n const y = point.pageY - referenceRect.top - scrollPosition.top;\n\n return {\n x: referenceRect.left - elementRect.left + x,\n y: referenceRect.top - elementRect.top + y\n };\n }\n\n /** Determines the point of the page that was touched by the user. */\n private _getPointerPositionOnPage(event: MouseEvent | TouchEvent): Point {\n const scrollPosition = this._getViewportScrollPosition();\n const point = isTouchEvent(event) ?\n // `touches` will be empty for start/end events so we have to fall back to `changedTouches`.\n // Also note that on real devices we're guaranteed for either `touches` or `changedTouches`\n // to have a value, but Firefox in device emulation mode has a bug where both can be empty\n // for `touchstart` and `touchend` so we fall back to a dummy object in order to avoid\n // throwing an error. The value returned here will be incorrect, but since this only\n // breaks inside a developer tool and the value is only used for secondary information,\n // we can get away with it. See https://bugzilla.mozilla.org/show_bug.cgi?id=1615824.\n (event.touches[0] || event.changedTouches[0] || {pageX: 0, pageY: 0}) : event;\n\n const x = point.pageX - scrollPosition.left;\n const y = point.pageY - scrollPosition.top;\n\n // if dragging SVG element, try to convert from the screen coordinate system to the SVG\n // coordinate system\n if (this._ownerSVGElement) {\n const svgMatrix = this._ownerSVGElement.getScreenCTM();\n if (svgMatrix) {\n const svgPoint = this._ownerSVGElement.createSVGPoint();\n svgPoint.x = x;\n svgPoint.y = y;\n return svgPoint.matrixTransform(svgMatrix.inverse());\n }\n }\n\n return {x, y};\n }\n\n\n /** Gets the pointer position on the page, accounting for any position constraints. */\n private _getConstrainedPointerPosition(point: Point): Point {\n const dropContainerLock = this._dropContainer ? this._dropContainer.lockAxis : null;\n let {x, y} = this.constrainPosition ? this.constrainPosition(point, this) : point;\n\n if (this.lockAxis === 'x' || dropContainerLock === 'x') {\n y = this._pickupPositionOnPage.y;\n } else if (this.lockAxis === 'y' || dropContainerLock === 'y') {\n x = this._pickupPositionOnPage.x;\n }\n\n if (this._boundaryRect) {\n const {x: pickupX, y: pickupY} = this._pickupPositionInElement;\n const boundaryRect = this._boundaryRect;\n const previewRect = this._previewRect!;\n const minY = boundaryRect.top + pickupY;\n const maxY = boundaryRect.bottom - (previewRect.height - pickupY);\n const minX = boundaryRect.left + pickupX;\n const maxX = boundaryRect.right - (previewRect.width - pickupX);\n\n x = clamp(x, minX, maxX);\n y = clamp(y, minY, maxY);\n }\n\n return {x, y};\n }\n\n\n /** Updates the current drag delta, based on the user's current pointer position on the page. */\n private _updatePointerDirectionDelta(pointerPositionOnPage: Point) {\n const {x, y} = pointerPositionOnPage;\n const delta = this._pointerDirectionDelta;\n const positionSinceLastChange = this._pointerPositionAtLastDirectionChange;\n\n // Amount of pixels the user has dragged since the last time the direction changed.\n const changeX = Math.abs(x - positionSinceLastChange.x);\n const changeY = Math.abs(y - positionSinceLastChange.y);\n\n // Because we handle pointer events on a per-pixel basis, we don't want the delta\n // to change for every pixel, otherwise anything that depends on it can look erratic.\n // To make the delta more consistent, we track how much the user has moved since the last\n // delta change and we only update it after it has reached a certain threshold.\n if (changeX > this._config.pointerDirectionChangeThreshold) {\n delta.x = x > positionSinceLastChange.x ? 1 : -1;\n positionSinceLastChange.x = x;\n }\n\n if (changeY > this._config.pointerDirectionChangeThreshold) {\n delta.y = y > positionSinceLastChange.y ? 1 : -1;\n positionSinceLastChange.y = y;\n }\n\n return delta;\n }\n\n /** Toggles the native drag interactions, based on how many handles are registered. */\n private _toggleNativeDragInteractions() {\n if (!this._rootElement || !this._handles) {\n return;\n }\n\n const shouldEnable = this._handles.length > 0 || !this.isDragging();\n\n if (shouldEnable !== this._nativeInteractionsEnabled) {\n this._nativeInteractionsEnabled = shouldEnable;\n toggleNativeDragInteractions(this._rootElement, shouldEnable);\n }\n }\n\n /** Removes the manually-added event listeners from the root element. */\n private _removeRootElementListeners(element: HTMLElement) {\n element.removeEventListener('mousedown', this._pointerDown, activeEventListenerOptions);\n element.removeEventListener('touchstart', this._pointerDown, passiveEventListenerOptions);\n }\n\n /**\n * Applies a `transform` to the root element, taking into account any existing transforms on it.\n * @param x New transform value along the X axis.\n * @param y New transform value along the Y axis.\n */\n private _applyRootElementTransform(x: number, y: number) {\n const transform = getTransform(x, y);\n\n // Cache the previous transform amount only after the first drag sequence, because\n // we don't want our own transforms to stack on top of each other.\n // Should be excluded none because none + translate3d(x, y, x) is invalid css\n if (this._initialTransform == null) {\n this._initialTransform = this._rootElement.style.transform\n && this._rootElement.style.transform != 'none'\n ? this._rootElement.style.transform\n : '';\n }\n\n // Preserve the previous `transform` value, if there was one. Note that we apply our own\n // transform before the user's, because things like rotation can affect which direction\n // the element will be translated towards.\n this._rootElement.style.transform = combineTransforms(transform, this._initialTransform);\n }\n\n /**\n * Applies a `transform` to the preview, taking into account any existing transforms on it.\n * @param x New transform value along the X axis.\n * @param y New transform value along the Y axis.\n */\n private _applyPreviewTransform(x: number, y: number) {\n // Only apply the initial transform if the preview is a clone of the original element, otherwise\n // it could be completely different and the transform might not make sense anymore.\n const initialTransform = this._previewTemplate?.template ? undefined : this._initialTransform;\n const transform = getTransform(x, y);\n this._preview.style.transform = combineTransforms(transform, initialTransform);\n }\n\n /**\n * Gets the distance that the user has dragged during the current drag sequence.\n * @param currentPosition Current position of the user's pointer.\n */\n private _getDragDistance(currentPosition: Point): Point {\n const pickupPosition = this._pickupPositionOnPage;\n\n if (pickupPosition) {\n return {x: currentPosition.x - pickupPosition.x, y: currentPosition.y - pickupPosition.y};\n }\n\n return {x: 0, y: 0};\n }\n\n /** Cleans up any cached element dimensions that we don't need after dragging has stopped. */\n private _cleanupCachedDimensions() {\n this._boundaryRect = this._previewRect = undefined;\n this._parentPositions.clear();\n }\n\n /**\n * Checks whether the element is still inside its boundary after the viewport has been resized.\n * If not, the position is adjusted so that the element fits again.\n */\n private _containInsideBoundaryOnResize() {\n let {x, y} = this._passiveTransform;\n\n if ((x === 0 && y === 0) || this.isDragging() || !this._boundaryElement) {\n return;\n }\n\n const boundaryRect = this._boundaryElement.getBoundingClientRect();\n const elementRect = this._rootElement.getBoundingClientRect();\n\n // It's possible that the element got hidden away after dragging (e.g. by switching to a\n // different tab). Don't do anything in this case so we don't clear the user's position.\n if ((boundaryRect.width === 0 && boundaryRect.height === 0) ||\n (elementRect.width === 0 && elementRect.height === 0)) {\n return;\n }\n\n const leftOverflow = boundaryRect.left - elementRect.left;\n const rightOverflow = elementRect.right - boundaryRect.right;\n const topOverflow = boundaryRect.top - elementRect.top;\n const bottomOverflow = elementRect.bottom - boundaryRect.bottom;\n\n // If the element has become wider than the boundary, we can't\n // do much to make it fit so we just anchor it to the left.\n if (boundaryRect.width > elementRect.width) {\n if (leftOverflow > 0) {\n x += leftOverflow;\n }\n\n if (rightOverflow > 0) {\n x -= rightOverflow;\n }\n } else {\n x = 0;\n }\n\n // If the element has become taller than the boundary, we can't\n // do much to make it fit so we just anchor it to the top.\n if (boundaryRect.height > elementRect.height) {\n if (topOverflow > 0) {\n y += topOverflow;\n }\n\n if (bottomOverflow > 0) {\n y -= bottomOverflow;\n }\n } else {\n y = 0;\n }\n\n if (x !== this._passiveTransform.x || y !== this._passiveTransform.y) {\n this.setFreeDragPosition({y, x});\n }\n }\n\n /** Gets the drag start delay, based on the event type. */\n private _getDragStartDelay(event: MouseEvent | TouchEvent): number {\n const value = this.dragStartDelay;\n\n if (typeof value === 'number') {\n return value;\n } else if (isTouchEvent(event)) {\n return value.touch;\n }\n\n return value ? value.mouse : 0;\n }\n\n /** Updates the internal state of the draggable element when scrolling has occurred. */\n private _updateOnScroll(event: Event) {\n const scrollDifference = this._parentPositions.handleScroll(event);\n\n if (scrollDifference) {\n const target = _getEventTarget(event)!;\n\n // ClientRect dimensions are based on the scroll position of the page and its parent node so\n // we have to update the cached boundary ClientRect if the user has scrolled. Check for\n // the `document` specifically since IE doesn't support `contains` on it.\n if (this._boundaryRect && (target === this._document ||\n (target !== this._boundaryElement && target.contains(this._boundaryElement)))) {\n adjustClientRect(this._boundaryRect, scrollDifference.top, scrollDifference.left);\n }\n\n this._pickupPositionOnPage.x += scrollDifference.left;\n this._pickupPositionOnPage.y += scrollDifference.top;\n\n // If we're in free drag mode, we have to update the active transform, because\n // it isn't relative to the viewport like the preview inside a drop list.\n if (!this._dropContainer) {\n this._activeTransform.x -= scrollDifference.left;\n this._activeTransform.y -= scrollDifference.top;\n this._applyRootElementTransform(this._activeTransform.x, this._activeTransform.y);\n }\n }\n }\n\n /** Gets the scroll position of the viewport. */\n private _getViewportScrollPosition() {\n const cachedPosition = this._parentPositions.positions.get(this._document);\n return cachedPosition ? cachedPosition.scrollPosition :\n this._viewportRuler.getViewportScrollPosition();\n }\n\n /**\n * Lazily resolves and returns the shadow root of the element. We do this in a function, rather\n * than saving it in property directly on init, because we want to resolve it as late as possible\n * in order to ensure that the element has been moved into the shadow DOM. Doing it inside the\n * constructor might be too early if the element is inside of something like `ngFor` or `ngIf`.\n */\n private _getShadowRoot(): ShadowRoot | null {\n if (this._cachedShadowRoot === undefined) {\n this._cachedShadowRoot = _getShadowRoot(this._rootElement);\n }\n\n return this._cachedShadowRoot;\n }\n\n /** Gets the element into which the drag preview should be inserted. */\n private _getPreviewInsertionPoint(initialParent: HTMLElement,\n shadowRoot: ShadowRoot | null): HTMLElement {\n const previewContainer = this._previewContainer || 'global';\n\n if (previewContainer === 'parent') {\n return initialParent;\n }\n\n if (previewContainer === 'global') {\n const documentRef = this._document;\n\n // We can't use the body if the user is in fullscreen mode,\n // because the preview will render under the fullscreen element.\n // TODO(crisbeto): dedupe this with the `FullscreenOverlayContainer` eventually.\n return shadowRoot ||\n documentRef.fullscreenElement ||\n (documentRef as any).webkitFullscreenElement ||\n (documentRef as any).mozFullScreenElement ||\n (documentRef as any).msFullscreenElement ||\n documentRef.body;\n }\n\n return coerceElement(previewContainer);\n }\n}\n\n/**\n * Gets a 3d `transform` that can be applied to an element.\n * @param x Desired position of the element along the X axis.\n * @param y Desired position of the element along the Y axis.\n */\nfunction getTransform(x: number, y: number): string {\n // Round the transforms since some browsers will\n // blur the elements for sub-pixel transforms.\n return `translate3d(${Math.round(x)}px, ${Math.round(y)}px, 0)`;\n}\n\n/** Clamps a value between a minimum and a maximum. */\nfunction clamp(value: number, min: number, max: number) {\n return Math.max(min, Math.min(max, value));\n}\n\n/**\n * Helper to remove a node from the DOM and to do all the necessary null checks.\n * @param node Node to be removed.\n */\nfunction removeNode(node: Node | null) {\n if (node && node.parentNode) {\n node.parentNode.removeChild(node);\n }\n}\n\n/** Determines whether an event is a touch event. */\nfunction isTouchEvent(event: MouseEvent | TouchEvent): event is TouchEvent {\n // This function is called for every pixel that the user has dragged so we need it to be\n // as fast as possible. Since we only bind mouse events and touch events, we can assume\n // that if the event's name starts with `t`, it's a touch event.\n return event.type[0] === 't';\n}\n\n/**\n * Gets the root HTML element of an embedded view.\n * If the root is not an HTML element it gets wrapped in one.\n */\nfunction getRootNode(viewRef: EmbeddedViewRef, _document: Document): HTMLElement {\n const rootNodes: Node[] = viewRef.rootNodes;\n\n if (rootNodes.length === 1 && rootNodes[0].nodeType === _document.ELEMENT_NODE) {\n return rootNodes[0] as HTMLElement;\n }\n\n const wrapper = _document.createElement('div');\n rootNodes.forEach(node => wrapper.appendChild(node));\n return wrapper;\n}\n\n/**\n * Matches the target element's size to the source's size.\n * @param target Element that needs to be resized.\n * @param sourceRect Dimensions of the source element.\n */\nfunction matchElementSize(target: HTMLElement, sourceRect: ClientRect): void {\n target.style.width = `${sourceRect.width}px`;\n target.style.height = `${sourceRect.height}px`;\n target.style.transform = getTransform(sourceRect.left, sourceRect.top);\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Moves an item one index in an array to another.\n * @param array Array in which to move the item.\n * @param fromIndex Starting index of the item.\n * @param toIndex Index to which the item should be moved.\n */\nexport function moveItemInArray(array: T[], fromIndex: number, toIndex: number): void {\n const from = clamp(fromIndex, array.length - 1);\n const to = clamp(toIndex, array.length - 1);\n\n if (from === to) {\n return;\n }\n\n const target = array[from];\n const delta = to < from ? -1 : 1;\n\n for (let i = from; i !== to; i += delta) {\n array[i] = array[i + delta];\n }\n\n array[to] = target;\n}\n\n\n/**\n * Moves an item from one array to another.\n * @param currentArray Array from which to transfer the item.\n * @param targetArray Array into which to put the item.\n * @param currentIndex Index of the item in its current array.\n * @param targetIndex Index at which to insert the item.\n */\nexport function transferArrayItem(currentArray: T[],\n targetArray: T[],\n currentIndex: number,\n targetIndex: number): void {\n const from = clamp(currentIndex, currentArray.length - 1);\n const to = clamp(targetIndex, targetArray.length);\n\n if (currentArray.length) {\n targetArray.splice(to, 0, currentArray.splice(from, 1)[0]);\n }\n}\n\n/**\n * Copies an item from one array to another, leaving it in its\n * original position in current array.\n * @param currentArray Array from which to copy the item.\n * @param targetArray Array into which is copy the item.\n * @param currentIndex Index of the item in its current array.\n * @param targetIndex Index at which to insert the item.\n *\n */\nexport function copyArrayItem(currentArray: T[],\n targetArray: T[],\n currentIndex: number,\n targetIndex: number): void {\n const to = clamp(targetIndex, targetArray.length);\n\n if (currentArray.length) {\n targetArray.splice(to, 0, currentArray[currentIndex]);\n }\n}\n\n/** Clamps a number between zero and a maximum. */\nfunction clamp(value: number, max: number): number {\n return Math.max(0, Math.min(max, value));\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ElementRef, NgZone} from '@angular/core';\nimport {Direction} from '@angular/cdk/bidi';\nimport {coerceElement} from '@angular/cdk/coercion';\nimport {ViewportRuler} from '@angular/cdk/scrolling';\nimport {_getShadowRoot} from '@angular/cdk/platform';\nimport {Subject, Subscription, interval, animationFrameScheduler} from 'rxjs';\nimport {takeUntil} from 'rxjs/operators';\nimport {moveItemInArray} from './drag-utils';\nimport {DragDropRegistry} from './drag-drop-registry';\nimport {DragRefInternal as DragRef, Point} from './drag-ref';\nimport {\n isPointerNearClientRect,\n adjustClientRect,\n getMutableClientRect,\n isInsideClientRect,\n} from './client-rect';\nimport {ParentPositionTracker} from './parent-position-tracker';\nimport {combineTransforms, DragCSSStyleDeclaration} from './drag-styling';\n\n/**\n * Proximity, as a ratio to width/height, at which a\n * dragged item will affect the drop container.\n */\nconst DROP_PROXIMITY_THRESHOLD = 0.05;\n\n/**\n * Proximity, as a ratio to width/height at which to start auto-scrolling the drop list or the\n * viewport. The value comes from trying it out manually until it feels right.\n */\nconst SCROLL_PROXIMITY_THRESHOLD = 0.05;\n\n/**\n * Entry in the position cache for draggable items.\n * @docs-private\n */\ninterface CachedItemPosition {\n /** Instance of the drag item. */\n drag: DragRef;\n /** Dimensions of the item. */\n clientRect: ClientRect;\n /** Amount by which the item has been moved since dragging started. */\n offset: number;\n /** Inline transform that the drag item had when dragging started. */\n initialTransform: string;\n}\n\n/** Vertical direction in which we can auto-scroll. */\nconst enum AutoScrollVerticalDirection {NONE, UP, DOWN}\n\n/** Horizontal direction in which we can auto-scroll. */\nconst enum AutoScrollHorizontalDirection {NONE, LEFT, RIGHT}\n\n/**\n * Internal compile-time-only representation of a `DropListRef`.\n * Used to avoid circular import issues between the `DropListRef` and the `DragRef`.\n * @docs-private\n */\nexport interface DropListRefInternal extends DropListRef {}\n\n/**\n * Reference to a drop list. Used to manipulate or dispose of the container.\n */\nexport class DropListRef {\n /** Element that the drop list is attached to. */\n element: HTMLElement | ElementRef;\n\n /** Whether starting a dragging sequence from this container is disabled. */\n disabled: boolean = false;\n\n /** Whether sorting items within the list is disabled. */\n sortingDisabled: boolean = false;\n\n /** Locks the position of the draggable elements inside the container along the specified axis. */\n lockAxis: 'x' | 'y';\n\n /**\n * Whether auto-scrolling the view when the user\n * moves their pointer close to the edges is disabled.\n */\n autoScrollDisabled: boolean = false;\n\n /** Number of pixels to scroll for each frame when auto-scrolling an element. */\n autoScrollStep: number = 2;\n\n /**\n * Function that is used to determine whether an item\n * is allowed to be moved into a drop container.\n */\n enterPredicate: (drag: DragRef, drop: DropListRef) => boolean = () => true;\n\n /** Functions that is used to determine whether an item can be sorted into a particular index. */\n sortPredicate: (index: number, drag: DragRef, drop: DropListRef) => boolean = () => true;\n\n /** Emits right before dragging has started. */\n readonly beforeStarted = new Subject();\n\n /**\n * Emits when the user has moved a new drag item into this container.\n */\n readonly entered = new Subject<{item: DragRef, container: DropListRef, currentIndex: number}>();\n\n /**\n * Emits when the user removes an item from the container\n * by dragging it into another container.\n */\n readonly exited = new Subject<{item: DragRef, container: DropListRef}>();\n\n /** Emits when the user drops an item inside the container. */\n readonly dropped = new Subject<{\n item: DragRef,\n currentIndex: number,\n previousIndex: number,\n container: DropListRef,\n previousContainer: DropListRef,\n isPointerOverContainer: boolean,\n distance: Point;\n dropPoint: Point;\n }>();\n\n /** Emits as the user is swapping items while actively dragging. */\n readonly sorted = new Subject<{\n previousIndex: number,\n currentIndex: number,\n container: DropListRef,\n item: DragRef\n }>();\n\n /** Arbitrary data that can be attached to the drop list. */\n data: T;\n\n /** Whether an item in the list is being dragged. */\n private _isDragging = false;\n\n /** Cache of the dimensions of all the items inside the container. */\n private _itemPositions: CachedItemPosition[] = [];\n\n /** Keeps track of the positions of any parent scrollable elements. */\n private _parentPositions: ParentPositionTracker;\n\n /** Cached `ClientRect` of the drop list. */\n private _clientRect: ClientRect | undefined;\n\n /**\n * Draggable items that are currently active inside the container. Includes the items\n * from `_draggables`, as well as any items that have been dragged in, but haven't\n * been dropped yet.\n */\n private _activeDraggables: DragRef[];\n\n /**\n * Keeps track of the item that was last swapped with the dragged item, as well as what direction\n * the pointer was moving in when the swap occured and whether the user's pointer continued to\n * overlap with the swapped item after the swapping occurred.\n */\n private _previousSwap = {drag: null as DragRef | null, delta: 0, overlaps: false};\n\n /** Draggable items in the container. */\n private _draggables: readonly DragRef[] = [];\n\n /** Drop lists that are connected to the current one. */\n private _siblings: readonly DropListRef[] = [];\n\n /** Direction in which the list is oriented. */\n private _orientation: 'horizontal' | 'vertical' = 'vertical';\n\n /** Connected siblings that currently have a dragged item. */\n private _activeSiblings = new Set();\n\n /** Layout direction of the drop list. */\n private _direction: Direction = 'ltr';\n\n /** Subscription to the window being scrolled. */\n private _viewportScrollSubscription = Subscription.EMPTY;\n\n /** Vertical direction in which the list is currently scrolling. */\n private _verticalScrollDirection = AutoScrollVerticalDirection.NONE;\n\n /** Horizontal direction in which the list is currently scrolling. */\n private _horizontalScrollDirection = AutoScrollHorizontalDirection.NONE;\n\n /** Node that is being auto-scrolled. */\n private _scrollNode: HTMLElement | Window;\n\n /** Used to signal to the current auto-scroll sequence when to stop. */\n private readonly _stopScrollTimers = new Subject();\n\n /** Shadow root of the current element. Necessary for `elementFromPoint` to resolve correctly. */\n private _cachedShadowRoot: DocumentOrShadowRoot | null = null;\n\n /** Reference to the document. */\n private _document: Document;\n\n /** Elements that can be scrolled while the user is dragging. */\n private _scrollableElements: HTMLElement[];\n\n /** Initial value for the element's `scroll-snap-type` style. */\n private _initialScrollSnap: string;\n\n constructor(\n element: ElementRef | HTMLElement,\n private _dragDropRegistry: DragDropRegistry,\n _document: any,\n private _ngZone: NgZone,\n private _viewportRuler: ViewportRuler) {\n this.element = coerceElement(element);\n this._document = _document;\n this.withScrollableParents([this.element]);\n _dragDropRegistry.registerDropContainer(this);\n this._parentPositions = new ParentPositionTracker(_document, _viewportRuler);\n }\n\n /** Removes the drop list functionality from the DOM element. */\n dispose() {\n this._stopScrolling();\n this._stopScrollTimers.complete();\n this._viewportScrollSubscription.unsubscribe();\n this.beforeStarted.complete();\n this.entered.complete();\n this.exited.complete();\n this.dropped.complete();\n this.sorted.complete();\n this._activeSiblings.clear();\n this._scrollNode = null!;\n this._parentPositions.clear();\n this._dragDropRegistry.removeDropContainer(this);\n }\n\n /** Whether an item from this list is currently being dragged. */\n isDragging() {\n return this._isDragging;\n }\n\n /** Starts dragging an item. */\n start(): void {\n this._draggingStarted();\n this._notifyReceivingSiblings();\n }\n\n /**\n * Emits an event to indicate that the user moved an item into the container.\n * @param item Item that was moved into the container.\n * @param pointerX Position of the item along the X axis.\n * @param pointerY Position of the item along the Y axis.\n * @param index Index at which the item entered. If omitted, the container will try to figure it\n * out automatically.\n */\n enter(item: DragRef, pointerX: number, pointerY: number, index?: number): void {\n this._draggingStarted();\n\n // If sorting is disabled, we want the item to return to its starting\n // position if the user is returning it to its initial container.\n let newIndex: number;\n\n if (index == null) {\n newIndex = this.sortingDisabled ? this._draggables.indexOf(item) : -1;\n\n if (newIndex === -1) {\n // We use the coordinates of where the item entered the drop\n // zone to figure out at which index it should be inserted.\n newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY);\n }\n } else {\n newIndex = index;\n }\n\n const activeDraggables = this._activeDraggables;\n const currentIndex = activeDraggables.indexOf(item);\n const placeholder = item.getPlaceholderElement();\n let newPositionReference: DragRef | undefined = activeDraggables[newIndex];\n\n // If the item at the new position is the same as the item that is being dragged,\n // it means that we're trying to restore the item to its initial position. In this\n // case we should use the next item from the list as the reference.\n if (newPositionReference === item) {\n newPositionReference = activeDraggables[newIndex + 1];\n }\n\n // Since the item may be in the `activeDraggables` already (e.g. if the user dragged it\n // into another container and back again), we have to ensure that it isn't duplicated.\n if (currentIndex > -1) {\n activeDraggables.splice(currentIndex, 1);\n }\n\n // Don't use items that are being dragged as a reference, because\n // their element has been moved down to the bottom of the body.\n if (newPositionReference && !this._dragDropRegistry.isDragging(newPositionReference)) {\n const element = newPositionReference.getRootElement();\n element.parentElement!.insertBefore(placeholder, element);\n activeDraggables.splice(newIndex, 0, item);\n } else if (this._shouldEnterAsFirstChild(pointerX, pointerY)) {\n const reference = activeDraggables[0].getRootElement();\n reference.parentNode!.insertBefore(placeholder, reference);\n activeDraggables.unshift(item);\n } else {\n coerceElement(this.element).appendChild(placeholder);\n activeDraggables.push(item);\n }\n\n // The transform needs to be cleared so it doesn't throw off the measurements.\n placeholder.style.transform = '';\n\n // Note that the positions were already cached when we called `start` above,\n // but we need to refresh them since the amount of items has changed and also parent rects.\n this._cacheItemPositions();\n this._cacheParentPositions();\n\n // Notify siblings at the end so that the item has been inserted into the `activeDraggables`.\n this._notifyReceivingSiblings();\n this.entered.next({item, container: this, currentIndex: this.getItemIndex(item)});\n }\n\n /**\n * Removes an item from the container after it was dragged into another container by the user.\n * @param item Item that was dragged out.\n */\n exit(item: DragRef): void {\n this._reset();\n this.exited.next({item, container: this});\n }\n\n /**\n * Drops an item into this container.\n * @param item Item being dropped into the container.\n * @param currentIndex Index at which the item should be inserted.\n * @param previousIndex Index of the item when dragging started.\n * @param previousContainer Container from which the item got dragged in.\n * @param isPointerOverContainer Whether the user's pointer was over the\n * container when the item was dropped.\n * @param distance Distance the user has dragged since the start of the dragging sequence.\n */\n drop(item: DragRef, currentIndex: number, previousIndex: number, previousContainer: DropListRef,\n isPointerOverContainer: boolean, distance: Point, dropPoint: Point): void {\n this._reset();\n this.dropped.next({\n item,\n currentIndex,\n previousIndex,\n container: this,\n previousContainer,\n isPointerOverContainer,\n distance,\n dropPoint\n });\n }\n\n /**\n * Sets the draggable items that are a part of this list.\n * @param items Items that are a part of this list.\n */\n withItems(items: DragRef[]): this {\n const previousItems = this._draggables;\n this._draggables = items;\n items.forEach(item => item._withDropContainer(this));\n\n if (this.isDragging()) {\n const draggedItems = previousItems.filter(item => item.isDragging());\n\n // If all of the items being dragged were removed\n // from the list, abort the current drag sequence.\n if (draggedItems.every(item => items.indexOf(item) === -1)) {\n this._reset();\n } else {\n this._cacheItems();\n }\n }\n\n return this;\n }\n\n /** Sets the layout direction of the drop list. */\n withDirection(direction: Direction): this {\n this._direction = direction;\n return this;\n }\n\n /**\n * Sets the containers that are connected to this one. When two or more containers are\n * connected, the user will be allowed to transfer items between them.\n * @param connectedTo Other containers that the current containers should be connected to.\n */\n connectedTo(connectedTo: DropListRef[]): this {\n this._siblings = connectedTo.slice();\n return this;\n }\n\n /**\n * Sets the orientation of the container.\n * @param orientation New orientation for the container.\n */\n withOrientation(orientation: 'vertical' | 'horizontal'): this {\n this._orientation = orientation;\n return this;\n }\n\n /**\n * Sets which parent elements are can be scrolled while the user is dragging.\n * @param elements Elements that can be scrolled.\n */\n withScrollableParents(elements: HTMLElement[]): this {\n const element = coerceElement(this.element);\n\n // We always allow the current element to be scrollable\n // so we need to ensure that it's in the array.\n this._scrollableElements =\n elements.indexOf(element) === -1 ? [element, ...elements] : elements.slice();\n return this;\n }\n\n /** Gets the scrollable parents that are registered with this drop container. */\n getScrollableParents(): readonly HTMLElement[] {\n return this._scrollableElements;\n }\n\n /**\n * Figures out the index of an item in the container.\n * @param item Item whose index should be determined.\n */\n getItemIndex(item: DragRef): number {\n if (!this._isDragging) {\n return this._draggables.indexOf(item);\n }\n\n // Items are sorted always by top/left in the cache, however they flow differently in RTL.\n // The rest of the logic still stands no matter what orientation we're in, however\n // we need to invert the array when determining the index.\n const items = this._orientation === 'horizontal' && this._direction === 'rtl' ?\n this._itemPositions.slice().reverse() : this._itemPositions;\n\n return findIndex(items, currentItem => currentItem.drag === item);\n }\n\n /**\n * Whether the list is able to receive the item that\n * is currently being dragged inside a connected drop list.\n */\n isReceiving(): boolean {\n return this._activeSiblings.size > 0;\n }\n\n /**\n * Sorts an item inside the container based on its position.\n * @param item Item to be sorted.\n * @param pointerX Position of the item along the X axis.\n * @param pointerY Position of the item along the Y axis.\n * @param pointerDelta Direction in which the pointer is moving along each axis.\n */\n _sortItem(item: DragRef, pointerX: number, pointerY: number,\n pointerDelta: {x: number, y: number}): void {\n // Don't sort the item if sorting is disabled or it's out of range.\n if (this.sortingDisabled || !this._clientRect ||\n !isPointerNearClientRect(this._clientRect, DROP_PROXIMITY_THRESHOLD, pointerX, pointerY)) {\n return;\n }\n\n const siblings = this._itemPositions;\n const newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY, pointerDelta);\n\n if (newIndex === -1 && siblings.length > 0) {\n return;\n }\n\n const isHorizontal = this._orientation === 'horizontal';\n const currentIndex = findIndex(siblings, currentItem => currentItem.drag === item);\n const siblingAtNewPosition = siblings[newIndex];\n const currentPosition = siblings[currentIndex].clientRect;\n const newPosition = siblingAtNewPosition.clientRect;\n const delta = currentIndex > newIndex ? 1 : -1;\n\n // How many pixels the item's placeholder should be offset.\n const itemOffset = this._getItemOffsetPx(currentPosition, newPosition, delta);\n\n // How many pixels all the other items should be offset.\n const siblingOffset = this._getSiblingOffsetPx(currentIndex, siblings, delta);\n\n // Save the previous order of the items before moving the item to its new index.\n // We use this to check whether an item has been moved as a result of the sorting.\n const oldOrder = siblings.slice();\n\n // Shuffle the array in place.\n moveItemInArray(siblings, currentIndex, newIndex);\n\n this.sorted.next({\n previousIndex: currentIndex,\n currentIndex: newIndex,\n container: this,\n item\n });\n\n siblings.forEach((sibling, index) => {\n // Don't do anything if the position hasn't changed.\n if (oldOrder[index] === sibling) {\n return;\n }\n\n const isDraggedItem = sibling.drag === item;\n const offset = isDraggedItem ? itemOffset : siblingOffset;\n const elementToOffset = isDraggedItem ? item.getPlaceholderElement() :\n sibling.drag.getRootElement();\n\n // Update the offset to reflect the new position.\n sibling.offset += offset;\n\n // Since we're moving the items with a `transform`, we need to adjust their cached\n // client rects to reflect their new position, as well as swap their positions in the cache.\n // Note that we shouldn't use `getBoundingClientRect` here to update the cache, because the\n // elements may be mid-animation which will give us a wrong result.\n if (isHorizontal) {\n // Round the transforms since some browsers will\n // blur the elements, for sub-pixel transforms.\n elementToOffset.style.transform = combineTransforms(\n `translate3d(${Math.round(sibling.offset)}px, 0, 0)`, sibling.initialTransform);\n adjustClientRect(sibling.clientRect, 0, offset);\n } else {\n elementToOffset.style.transform = combineTransforms(\n `translate3d(0, ${Math.round(sibling.offset)}px, 0)`, sibling.initialTransform);\n adjustClientRect(sibling.clientRect, offset, 0);\n }\n });\n\n // Note that it's important that we do this after the client rects have been adjusted.\n this._previousSwap.overlaps = isInsideClientRect(newPosition, pointerX, pointerY);\n this._previousSwap.drag = siblingAtNewPosition.drag;\n this._previousSwap.delta = isHorizontal ? pointerDelta.x : pointerDelta.y;\n }\n\n /**\n * Checks whether the user's pointer is close to the edges of either the\n * viewport or the drop list and starts the auto-scroll sequence.\n * @param pointerX User's pointer position along the x axis.\n * @param pointerY User's pointer position along the y axis.\n */\n _startScrollingIfNecessary(pointerX: number, pointerY: number) {\n if (this.autoScrollDisabled) {\n return;\n }\n\n let scrollNode: HTMLElement | Window | undefined;\n let verticalScrollDirection = AutoScrollVerticalDirection.NONE;\n let horizontalScrollDirection = AutoScrollHorizontalDirection.NONE;\n\n // Check whether we should start scrolling any of the parent containers.\n this._parentPositions.positions.forEach((position, element) => {\n // We have special handling for the `document` below. Also this would be\n // nicer with a for...of loop, but it requires changing a compiler flag.\n if (element === this._document || !position.clientRect || scrollNode) {\n return;\n }\n\n if (isPointerNearClientRect(position.clientRect, DROP_PROXIMITY_THRESHOLD,\n pointerX, pointerY)) {\n [verticalScrollDirection, horizontalScrollDirection] = getElementScrollDirections(\n element as HTMLElement, position.clientRect, pointerX, pointerY);\n\n if (verticalScrollDirection || horizontalScrollDirection) {\n scrollNode = element as HTMLElement;\n }\n }\n });\n\n // Otherwise check if we can start scrolling the viewport.\n if (!verticalScrollDirection && !horizontalScrollDirection) {\n const {width, height} = this._viewportRuler.getViewportSize();\n const clientRect = {width, height, top: 0, right: width, bottom: height, left: 0};\n verticalScrollDirection = getVerticalScrollDirection(clientRect, pointerY);\n horizontalScrollDirection = getHorizontalScrollDirection(clientRect, pointerX);\n scrollNode = window;\n }\n\n if (scrollNode && (verticalScrollDirection !== this._verticalScrollDirection ||\n horizontalScrollDirection !== this._horizontalScrollDirection ||\n scrollNode !== this._scrollNode)) {\n this._verticalScrollDirection = verticalScrollDirection;\n this._horizontalScrollDirection = horizontalScrollDirection;\n this._scrollNode = scrollNode;\n\n if ((verticalScrollDirection || horizontalScrollDirection) && scrollNode) {\n this._ngZone.runOutsideAngular(this._startScrollInterval);\n } else {\n this._stopScrolling();\n }\n }\n }\n\n /** Stops any currently-running auto-scroll sequences. */\n _stopScrolling() {\n this._stopScrollTimers.next();\n }\n\n /** Starts the dragging sequence within the list. */\n private _draggingStarted() {\n const styles = coerceElement(this.element).style as DragCSSStyleDeclaration;\n this.beforeStarted.next();\n this._isDragging = true;\n\n // We need to disable scroll snapping while the user is dragging, because it breaks automatic\n // scrolling. The browser seems to round the value based on the snapping points which means\n // that we can't increment/decrement the scroll position.\n this._initialScrollSnap = styles.msScrollSnapType || styles.scrollSnapType || '';\n styles.scrollSnapType = styles.msScrollSnapType = 'none';\n this._cacheItems();\n this._viewportScrollSubscription.unsubscribe();\n this._listenToScrollEvents();\n }\n\n /** Caches the positions of the configured scrollable parents. */\n private _cacheParentPositions() {\n const element = coerceElement(this.element);\n this._parentPositions.cache(this._scrollableElements);\n\n // The list element is always in the `scrollableElements`\n // so we can take advantage of the cached `ClientRect`.\n this._clientRect = this._parentPositions.positions.get(element)!.clientRect!;\n }\n\n /** Refreshes the position cache of the items and sibling containers. */\n private _cacheItemPositions() {\n const isHorizontal = this._orientation === 'horizontal';\n\n this._itemPositions = this._activeDraggables.map(drag => {\n const elementToMeasure = drag.getVisibleElement();\n return {\n drag,\n offset: 0,\n initialTransform: elementToMeasure.style.transform || '',\n clientRect: getMutableClientRect(elementToMeasure),\n };\n }).sort((a, b) => {\n return isHorizontal ? a.clientRect.left - b.clientRect.left :\n a.clientRect.top - b.clientRect.top;\n });\n }\n\n /** Resets the container to its initial state. */\n private _reset() {\n this._isDragging = false;\n\n const styles = coerceElement(this.element).style as DragCSSStyleDeclaration;\n styles.scrollSnapType = styles.msScrollSnapType = this._initialScrollSnap;\n\n // TODO(crisbeto): may have to wait for the animations to finish.\n this._activeDraggables.forEach(item => {\n const rootElement = item.getRootElement();\n\n if (rootElement) {\n const initialTransform = this._itemPositions\n .find(current => current.drag === item)?.initialTransform;\n rootElement.style.transform = initialTransform || '';\n }\n });\n this._siblings.forEach(sibling => sibling._stopReceiving(this));\n this._activeDraggables = [];\n this._itemPositions = [];\n this._previousSwap.drag = null;\n this._previousSwap.delta = 0;\n this._previousSwap.overlaps = false;\n this._stopScrolling();\n this._viewportScrollSubscription.unsubscribe();\n this._parentPositions.clear();\n }\n\n /**\n * Gets the offset in pixels by which the items that aren't being dragged should be moved.\n * @param currentIndex Index of the item currently being dragged.\n * @param siblings All of the items in the list.\n * @param delta Direction in which the user is moving.\n */\n private _getSiblingOffsetPx(currentIndex: number,\n siblings: CachedItemPosition[],\n delta: 1 | -1) {\n\n const isHorizontal = this._orientation === 'horizontal';\n const currentPosition = siblings[currentIndex].clientRect;\n const immediateSibling = siblings[currentIndex + delta * -1];\n let siblingOffset = currentPosition[isHorizontal ? 'width' : 'height'] * delta;\n\n if (immediateSibling) {\n const start = isHorizontal ? 'left' : 'top';\n const end = isHorizontal ? 'right' : 'bottom';\n\n // Get the spacing between the start of the current item and the end of the one immediately\n // after it in the direction in which the user is dragging, or vice versa. We add it to the\n // offset in order to push the element to where it will be when it's inline and is influenced\n // by the `margin` of its siblings.\n if (delta === -1) {\n siblingOffset -= immediateSibling.clientRect[start] - currentPosition[end];\n } else {\n siblingOffset += currentPosition[start] - immediateSibling.clientRect[end];\n }\n }\n\n return siblingOffset;\n }\n\n /**\n * Gets the offset in pixels by which the item that is being dragged should be moved.\n * @param currentPosition Current position of the item.\n * @param newPosition Position of the item where the current item should be moved.\n * @param delta Direction in which the user is moving.\n */\n private _getItemOffsetPx(currentPosition: ClientRect, newPosition: ClientRect, delta: 1 | -1) {\n const isHorizontal = this._orientation === 'horizontal';\n let itemOffset = isHorizontal ? newPosition.left - currentPosition.left :\n newPosition.top - currentPosition.top;\n\n // Account for differences in the item width/height.\n if (delta === -1) {\n itemOffset += isHorizontal ? newPosition.width - currentPosition.width :\n newPosition.height - currentPosition.height;\n }\n\n return itemOffset;\n }\n\n /**\n * Checks if pointer is entering in the first position\n * @param pointerX Position of the user's pointer along the X axis.\n * @param pointerY Position of the user's pointer along the Y axis.\n */\n private _shouldEnterAsFirstChild(pointerX: number, pointerY: number) {\n if (!this._activeDraggables.length) {\n return false;\n }\n\n const itemPositions = this._itemPositions;\n const isHorizontal = this._orientation === 'horizontal';\n\n // `itemPositions` are sorted by position while `activeDraggables` are sorted by child index\n // check if container is using some sort of \"reverse\" ordering (eg: flex-direction: row-reverse)\n const reversed = itemPositions[0].drag !== this._activeDraggables[0];\n if (reversed) {\n const lastItemRect = itemPositions[itemPositions.length - 1].clientRect;\n return isHorizontal ? pointerX >= lastItemRect.right : pointerY >= lastItemRect.bottom;\n } else {\n const firstItemRect = itemPositions[0].clientRect;\n return isHorizontal ? pointerX <= firstItemRect.left : pointerY <= firstItemRect.top;\n }\n }\n\n /**\n * Gets the index of an item in the drop container, based on the position of the user's pointer.\n * @param item Item that is being sorted.\n * @param pointerX Position of the user's pointer along the X axis.\n * @param pointerY Position of the user's pointer along the Y axis.\n * @param delta Direction in which the user is moving their pointer.\n */\n private _getItemIndexFromPointerPosition(item: DragRef, pointerX: number, pointerY: number,\n delta?: {x: number, y: number}): number {\n const isHorizontal = this._orientation === 'horizontal';\n const index = findIndex(this._itemPositions, ({drag, clientRect}, _, array) => {\n if (drag === item) {\n // If there's only one item left in the container, it must be\n // the dragged item itself so we use it as a reference.\n return array.length < 2;\n }\n\n if (delta) {\n const direction = isHorizontal ? delta.x : delta.y;\n\n // If the user is still hovering over the same item as last time, their cursor hasn't left\n // the item after we made the swap, and they didn't change the direction in which they're\n // dragging, we don't consider it a direction swap.\n if (drag === this._previousSwap.drag && this._previousSwap.overlaps &&\n direction === this._previousSwap.delta) {\n return false;\n }\n }\n\n return isHorizontal ?\n // Round these down since most browsers report client rects with\n // sub-pixel precision, whereas the pointer coordinates are rounded to pixels.\n pointerX >= Math.floor(clientRect.left) && pointerX < Math.floor(clientRect.right) :\n pointerY >= Math.floor(clientRect.top) && pointerY < Math.floor(clientRect.bottom);\n });\n\n return (index === -1 || !this.sortPredicate(index, item, this)) ? -1 : index;\n }\n\n /** Caches the current items in the list and their positions. */\n private _cacheItems(): void {\n this._activeDraggables = this._draggables.slice();\n this._cacheItemPositions();\n this._cacheParentPositions();\n }\n\n /** Starts the interval that'll auto-scroll the element. */\n private _startScrollInterval = () => {\n this._stopScrolling();\n\n interval(0, animationFrameScheduler)\n .pipe(takeUntil(this._stopScrollTimers))\n .subscribe(() => {\n const node = this._scrollNode;\n const scrollStep = this.autoScrollStep;\n\n if (this._verticalScrollDirection === AutoScrollVerticalDirection.UP) {\n incrementVerticalScroll(node, -scrollStep);\n } else if (this._verticalScrollDirection === AutoScrollVerticalDirection.DOWN) {\n incrementVerticalScroll(node, scrollStep);\n }\n\n if (this._horizontalScrollDirection === AutoScrollHorizontalDirection.LEFT) {\n incrementHorizontalScroll(node, -scrollStep);\n } else if (this._horizontalScrollDirection === AutoScrollHorizontalDirection.RIGHT) {\n incrementHorizontalScroll(node, scrollStep);\n }\n });\n }\n\n /**\n * Checks whether the user's pointer is positioned over the container.\n * @param x Pointer position along the X axis.\n * @param y Pointer position along the Y axis.\n */\n _isOverContainer(x: number, y: number): boolean {\n return this._clientRect != null && isInsideClientRect(this._clientRect, x, y);\n }\n\n /**\n * Figures out whether an item should be moved into a sibling\n * drop container, based on its current position.\n * @param item Drag item that is being moved.\n * @param x Position of the item along the X axis.\n * @param y Position of the item along the Y axis.\n */\n _getSiblingContainerFromPosition(item: DragRef, x: number, y: number): DropListRef | undefined {\n return this._siblings.find(sibling => sibling._canReceive(item, x, y));\n }\n\n /**\n * Checks whether the drop list can receive the passed-in item.\n * @param item Item that is being dragged into the list.\n * @param x Position of the item along the X axis.\n * @param y Position of the item along the Y axis.\n */\n _canReceive(item: DragRef, x: number, y: number): boolean {\n if (!this._clientRect || !isInsideClientRect(this._clientRect, x, y) ||\n !this.enterPredicate(item, this)) {\n return false;\n }\n\n const elementFromPoint = this._getShadowRoot().elementFromPoint(x, y) as HTMLElement | null;\n\n // If there's no element at the pointer position, then\n // the client rect is probably scrolled out of the view.\n if (!elementFromPoint) {\n return false;\n }\n\n const nativeElement = coerceElement(this.element);\n\n // The `ClientRect`, that we're using to find the container over which the user is\n // hovering, doesn't give us any information on whether the element has been scrolled\n // out of the view or whether it's overlapping with other containers. This means that\n // we could end up transferring the item into a container that's invisible or is positioned\n // below another one. We use the result from `elementFromPoint` to get the top-most element\n // at the pointer position and to find whether it's one of the intersecting drop containers.\n return elementFromPoint === nativeElement || nativeElement.contains(elementFromPoint);\n }\n\n /**\n * Called by one of the connected drop lists when a dragging sequence has started.\n * @param sibling Sibling in which dragging has started.\n */\n _startReceiving(sibling: DropListRef, items: DragRef[]) {\n const activeSiblings = this._activeSiblings;\n\n if (!activeSiblings.has(sibling) && items.every(item => {\n // Note that we have to add an exception to the `enterPredicate` for items that started off\n // in this drop list. The drag ref has logic that allows an item to return to its initial\n // container, if it has left the initial container and none of the connected containers\n // allow it to enter. See `DragRef._updateActiveDropContainer` for more context.\n return this.enterPredicate(item, this) || this._draggables.indexOf(item) > -1;\n })) {\n activeSiblings.add(sibling);\n this._cacheParentPositions();\n this._listenToScrollEvents();\n }\n }\n\n /**\n * Called by a connected drop list when dragging has stopped.\n * @param sibling Sibling whose dragging has stopped.\n */\n _stopReceiving(sibling: DropListRef) {\n this._activeSiblings.delete(sibling);\n this._viewportScrollSubscription.unsubscribe();\n }\n\n /**\n * Starts listening to scroll events on the viewport.\n * Used for updating the internal state of the list.\n */\n private _listenToScrollEvents() {\n this._viewportScrollSubscription = this._dragDropRegistry\n .scrolled(this._getShadowRoot())\n .subscribe(event => {\n if (this.isDragging()) {\n const scrollDifference = this._parentPositions.handleScroll(event);\n\n if (scrollDifference) {\n // Since we know the amount that the user has scrolled we can shift all of the\n // client rectangles ourselves. This is cheaper than re-measuring everything and\n // we can avoid inconsistent behavior where we might be measuring the element before\n // its position has changed.\n this._itemPositions.forEach(({clientRect}) => {\n adjustClientRect(clientRect, scrollDifference.top, scrollDifference.left);\n });\n\n // We need two loops for this, because we want all of the cached\n // positions to be up-to-date before we re-sort the item.\n this._itemPositions.forEach(({drag}) => {\n if (this._dragDropRegistry.isDragging(drag)) {\n // We need to re-sort the item manually, because the pointer move\n // events won't be dispatched while the user is scrolling.\n drag._sortFromLastPointerPosition();\n }\n });\n }\n } else if (this.isReceiving()) {\n this._cacheParentPositions();\n }\n });\n }\n\n /**\n * Lazily resolves and returns the shadow root of the element. We do this in a function, rather\n * than saving it in property directly on init, because we want to resolve it as late as possible\n * in order to ensure that the element has been moved into the shadow DOM. Doing it inside the\n * constructor might be too early if the element is inside of something like `ngFor` or `ngIf`.\n */\n private _getShadowRoot(): DocumentOrShadowRoot {\n if (!this._cachedShadowRoot) {\n const shadowRoot = _getShadowRoot(coerceElement(this.element));\n this._cachedShadowRoot = shadowRoot || this._document;\n }\n\n return this._cachedShadowRoot;\n }\n\n /** Notifies any siblings that may potentially receive the item. */\n private _notifyReceivingSiblings() {\n const draggedItems = this._activeDraggables.filter(item => item.isDragging());\n this._siblings.forEach(sibling => sibling._startReceiving(this, draggedItems));\n }\n}\n\n\n/**\n * Finds the index of an item that matches a predicate function. Used as an equivalent\n * of `Array.prototype.findIndex` which isn't part of the standard Google typings.\n * @param array Array in which to look for matches.\n * @param predicate Function used to determine whether an item is a match.\n */\nfunction findIndex(array: T[],\n predicate: (value: T, index: number, obj: T[]) => boolean): number {\n\n for (let i = 0; i < array.length; i++) {\n if (predicate(array[i], i, array)) {\n return i;\n }\n }\n\n return -1;\n}\n\n/**\n * Increments the vertical scroll position of a node.\n * @param node Node whose scroll position should change.\n * @param amount Amount of pixels that the `node` should be scrolled.\n */\nfunction incrementVerticalScroll(node: HTMLElement | Window, amount: number) {\n if (node === window) {\n (node as Window).scrollBy(0, amount);\n } else {\n // Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.\n (node as HTMLElement).scrollTop += amount;\n }\n}\n\n/**\n * Increments the horizontal scroll position of a node.\n * @param node Node whose scroll position should change.\n * @param amount Amount of pixels that the `node` should be scrolled.\n */\nfunction incrementHorizontalScroll(node: HTMLElement | Window, amount: number) {\n if (node === window) {\n (node as Window).scrollBy(amount, 0);\n } else {\n // Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.\n (node as HTMLElement).scrollLeft += amount;\n }\n}\n\n/**\n * Gets whether the vertical auto-scroll direction of a node.\n * @param clientRect Dimensions of the node.\n * @param pointerY Position of the user's pointer along the y axis.\n */\nfunction getVerticalScrollDirection(clientRect: ClientRect, pointerY: number) {\n const {top, bottom, height} = clientRect;\n const yThreshold = height * SCROLL_PROXIMITY_THRESHOLD;\n\n if (pointerY >= top - yThreshold && pointerY <= top + yThreshold) {\n return AutoScrollVerticalDirection.UP;\n } else if (pointerY >= bottom - yThreshold && pointerY <= bottom + yThreshold) {\n return AutoScrollVerticalDirection.DOWN;\n }\n\n return AutoScrollVerticalDirection.NONE;\n}\n\n/**\n * Gets whether the horizontal auto-scroll direction of a node.\n * @param clientRect Dimensions of the node.\n * @param pointerX Position of the user's pointer along the x axis.\n */\nfunction getHorizontalScrollDirection(clientRect: ClientRect, pointerX: number) {\n const {left, right, width} = clientRect;\n const xThreshold = width * SCROLL_PROXIMITY_THRESHOLD;\n\n if (pointerX >= left - xThreshold && pointerX <= left + xThreshold) {\n return AutoScrollHorizontalDirection.LEFT;\n } else if (pointerX >= right - xThreshold && pointerX <= right + xThreshold) {\n return AutoScrollHorizontalDirection.RIGHT;\n }\n\n return AutoScrollHorizontalDirection.NONE;\n}\n\n/**\n * Gets the directions in which an element node should be scrolled,\n * assuming that the user's pointer is already within it scrollable region.\n * @param element Element for which we should calculate the scroll direction.\n * @param clientRect Bounding client rectangle of the element.\n * @param pointerX Position of the user's pointer along the x axis.\n * @param pointerY Position of the user's pointer along the y axis.\n */\nfunction getElementScrollDirections(element: HTMLElement, clientRect: ClientRect, pointerX: number,\n pointerY: number): [AutoScrollVerticalDirection, AutoScrollHorizontalDirection] {\n const computedVertical = getVerticalScrollDirection(clientRect, pointerY);\n const computedHorizontal = getHorizontalScrollDirection(clientRect, pointerX);\n let verticalScrollDirection = AutoScrollVerticalDirection.NONE;\n let horizontalScrollDirection = AutoScrollHorizontalDirection.NONE;\n\n // Note that we here we do some extra checks for whether the element is actually scrollable in\n // a certain direction and we only assign the scroll direction if it is. We do this so that we\n // can allow other elements to be scrolled, if the current element can't be scrolled anymore.\n // This allows us to handle cases where the scroll regions of two scrollable elements overlap.\n if (computedVertical) {\n const scrollTop = element.scrollTop;\n\n if (computedVertical === AutoScrollVerticalDirection.UP) {\n if (scrollTop > 0) {\n verticalScrollDirection = AutoScrollVerticalDirection.UP;\n }\n } else if (element.scrollHeight - scrollTop > element.clientHeight) {\n verticalScrollDirection = AutoScrollVerticalDirection.DOWN;\n }\n }\n\n if (computedHorizontal) {\n const scrollLeft = element.scrollLeft;\n\n if (computedHorizontal === AutoScrollHorizontalDirection.LEFT) {\n if (scrollLeft > 0) {\n horizontalScrollDirection = AutoScrollHorizontalDirection.LEFT;\n }\n } else if (element.scrollWidth - scrollLeft > element.clientWidth) {\n horizontalScrollDirection = AutoScrollHorizontalDirection.RIGHT;\n }\n }\n\n return [verticalScrollDirection, horizontalScrollDirection];\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Injectable, NgZone, OnDestroy, Inject} from '@angular/core';\nimport {DOCUMENT} from '@angular/common';\nimport {normalizePassiveListenerOptions} from '@angular/cdk/platform';\nimport {merge, Observable, Observer, Subject} from 'rxjs';\n\n/** Event options that can be used to bind an active, capturing event. */\nconst activeCapturingEventOptions = normalizePassiveListenerOptions({\n passive: false,\n capture: true\n});\n\n/**\n * Service that keeps track of all the drag item and drop container\n * instances, and manages global event listeners on the `document`.\n * @docs-private\n */\n// Note: this class is generic, rather than referencing CdkDrag and CdkDropList directly, in order\n// to avoid circular imports. If we were to reference them here, importing the registry into the\n// classes that are registering themselves will introduce a circular import.\n@Injectable({providedIn: 'root'})\nexport class DragDropRegistry implements OnDestroy {\n private _document: Document;\n\n /** Registered drop container instances. */\n private _dropInstances = new Set();\n\n /** Registered drag item instances. */\n private _dragInstances = new Set();\n\n /** Drag item instances that are currently being dragged. */\n private _activeDragInstances: I[] = [];\n\n /** Keeps track of the event listeners that we've bound to the `document`. */\n private _globalListeners = new Map void,\n options?: AddEventListenerOptions | boolean\n }>();\n\n /**\n * Predicate function to check if an item is being dragged. Moved out into a property,\n * because it'll be called a lot and we don't want to create a new function every time.\n */\n private _draggingPredicate = (item: I) => item.isDragging();\n\n /**\n * Emits the `touchmove` or `mousemove` events that are dispatched\n * while the user is dragging a drag item instance.\n */\n readonly pointerMove: Subject = new Subject();\n\n /**\n * Emits the `touchend` or `mouseup` events that are dispatched\n * while the user is dragging a drag item instance.\n */\n readonly pointerUp: Subject = new Subject();\n\n /**\n * Emits when the viewport has been scrolled while the user is dragging an item.\n * @deprecated To be turned into a private member. Use the `scrolled` method instead.\n * @breaking-change 13.0.0\n */\n readonly scroll: Subject = new Subject();\n\n constructor(\n private _ngZone: NgZone,\n @Inject(DOCUMENT) _document: any) {\n this._document = _document;\n }\n\n /** Adds a drop container to the registry. */\n registerDropContainer(drop: C) {\n if (!this._dropInstances.has(drop)) {\n this._dropInstances.add(drop);\n }\n }\n\n /** Adds a drag item instance to the registry. */\n registerDragItem(drag: I) {\n this._dragInstances.add(drag);\n\n // The `touchmove` event gets bound once, ahead of time, because WebKit\n // won't preventDefault on a dynamically-added `touchmove` listener.\n // See https://bugs.webkit.org/show_bug.cgi?id=184250.\n if (this._dragInstances.size === 1) {\n this._ngZone.runOutsideAngular(() => {\n // The event handler has to be explicitly active,\n // because newer browsers make it passive by default.\n this._document.addEventListener('touchmove', this._persistentTouchmoveListener,\n activeCapturingEventOptions);\n });\n }\n }\n\n /** Removes a drop container from the registry. */\n removeDropContainer(drop: C) {\n this._dropInstances.delete(drop);\n }\n\n /** Removes a drag item instance from the registry. */\n removeDragItem(drag: I) {\n this._dragInstances.delete(drag);\n this.stopDragging(drag);\n\n if (this._dragInstances.size === 0) {\n this._document.removeEventListener('touchmove', this._persistentTouchmoveListener,\n activeCapturingEventOptions);\n }\n }\n\n /**\n * Starts the dragging sequence for a drag instance.\n * @param drag Drag instance which is being dragged.\n * @param event Event that initiated the dragging.\n */\n startDragging(drag: I, event: TouchEvent | MouseEvent) {\n // Do not process the same drag twice to avoid memory leaks and redundant listeners\n if (this._activeDragInstances.indexOf(drag) > -1) {\n return;\n }\n\n this._activeDragInstances.push(drag);\n\n if (this._activeDragInstances.length === 1) {\n const isTouchEvent = event.type.startsWith('touch');\n\n // We explicitly bind __active__ listeners here, because newer browsers will default to\n // passive ones for `mousemove` and `touchmove`. The events need to be active, because we\n // use `preventDefault` to prevent the page from scrolling while the user is dragging.\n this._globalListeners\n .set(isTouchEvent ? 'touchend' : 'mouseup', {\n handler: (e: Event) => this.pointerUp.next(e as TouchEvent | MouseEvent),\n options: true\n })\n .set('scroll', {\n handler: (e: Event) => this.scroll.next(e),\n // Use capturing so that we pick up scroll changes in any scrollable nodes that aren't\n // the document. See https://github.com/angular/components/issues/17144.\n options: true\n })\n // Preventing the default action on `mousemove` isn't enough to disable text selection\n // on Safari so we need to prevent the selection event as well. Alternatively this can\n // be done by setting `user-select: none` on the `body`, however it has causes a style\n // recalculation which can be expensive on pages with a lot of elements.\n .set('selectstart', {\n handler: this._preventDefaultWhileDragging,\n options: activeCapturingEventOptions\n });\n\n // We don't have to bind a move event for touch drag sequences, because\n // we already have a persistent global one bound from `registerDragItem`.\n if (!isTouchEvent) {\n this._globalListeners.set('mousemove', {\n handler: (e: Event) => this.pointerMove.next(e as MouseEvent),\n options: activeCapturingEventOptions\n });\n }\n\n this._ngZone.runOutsideAngular(() => {\n this._globalListeners.forEach((config, name) => {\n this._document.addEventListener(name, config.handler, config.options);\n });\n });\n }\n }\n\n /** Stops dragging a drag item instance. */\n stopDragging(drag: I) {\n const index = this._activeDragInstances.indexOf(drag);\n\n if (index > -1) {\n this._activeDragInstances.splice(index, 1);\n\n if (this._activeDragInstances.length === 0) {\n this._clearGlobalListeners();\n }\n }\n }\n\n /** Gets whether a drag item instance is currently being dragged. */\n isDragging(drag: I) {\n return this._activeDragInstances.indexOf(drag) > -1;\n }\n\n /**\n * Gets a stream that will emit when any element on the page is scrolled while an item is being\n * dragged.\n * @param shadowRoot Optional shadow root that the current dragging sequence started from.\n * Top-level listeners won't pick up events coming from the shadow DOM so this parameter can\n * be used to include an additional top-level listener at the shadow root level.\n */\n scrolled(shadowRoot?: DocumentOrShadowRoot | null): Observable {\n const streams: Observable[] = [this.scroll];\n\n if (shadowRoot && shadowRoot !== this._document) {\n // Note that this is basically the same as `fromEvent` from rjxs, but we do it ourselves,\n // because we want to guarantee that the event is bound outside of the `NgZone`. With\n // `fromEvent` it'll only happen if the subscription is outside the `NgZone`.\n streams.push(new Observable((observer: Observer) => {\n return this._ngZone.runOutsideAngular(() => {\n const eventOptions = true;\n const callback = (event: Event) => {\n if (this._activeDragInstances.length) {\n observer.next(event);\n }\n };\n\n (shadowRoot as ShadowRoot).addEventListener('scroll', callback, eventOptions);\n\n return () => {\n (shadowRoot as ShadowRoot).removeEventListener('scroll', callback, eventOptions);\n };\n });\n }));\n }\n\n return merge(...streams);\n }\n\n ngOnDestroy() {\n this._dragInstances.forEach(instance => this.removeDragItem(instance));\n this._dropInstances.forEach(instance => this.removeDropContainer(instance));\n this._clearGlobalListeners();\n this.pointerMove.complete();\n this.pointerUp.complete();\n }\n\n /**\n * Event listener that will prevent the default browser action while the user is dragging.\n * @param event Event whose default action should be prevented.\n */\n private _preventDefaultWhileDragging = (event: Event) => {\n if (this._activeDragInstances.length > 0) {\n event.preventDefault();\n }\n }\n\n /** Event listener for `touchmove` that is bound even if no dragging is happening. */\n private _persistentTouchmoveListener = (event: TouchEvent) => {\n if (this._activeDragInstances.length > 0) {\n // Note that we only want to prevent the default action after dragging has actually started.\n // Usually this is the same time at which the item is added to the `_activeDragInstances`,\n // but it could be pushed back if the user has set up a drag delay or threshold.\n if (this._activeDragInstances.some(this._draggingPredicate)) {\n event.preventDefault();\n }\n\n this.pointerMove.next(event);\n }\n }\n\n /** Clears out the global event listeners from the `document`. */\n private _clearGlobalListeners() {\n this._globalListeners.forEach((config, name) => {\n this._document.removeEventListener(name, config.handler, config.options);\n });\n\n this._globalListeners.clear();\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Injectable, Inject, NgZone, ElementRef} from '@angular/core';\nimport {DOCUMENT} from '@angular/common';\nimport {ViewportRuler} from '@angular/cdk/scrolling';\nimport {DragRef, DragRefConfig} from './drag-ref';\nimport {DropListRef} from './drop-list-ref';\nimport {DragDropRegistry} from './drag-drop-registry';\n\n/** Default configuration to be used when creating a `DragRef`. */\nconst DEFAULT_CONFIG = {\n dragStartThreshold: 5,\n pointerDirectionChangeThreshold: 5\n};\n\n/**\n * Service that allows for drag-and-drop functionality to be attached to DOM elements.\n */\n@Injectable({providedIn: 'root'})\nexport class DragDrop {\n constructor(\n @Inject(DOCUMENT) private _document: any,\n private _ngZone: NgZone,\n private _viewportRuler: ViewportRuler,\n private _dragDropRegistry: DragDropRegistry) {}\n\n /**\n * Turns an element into a draggable item.\n * @param element Element to which to attach the dragging functionality.\n * @param config Object used to configure the dragging behavior.\n */\n createDrag(element: ElementRef | HTMLElement,\n config: DragRefConfig = DEFAULT_CONFIG): DragRef {\n\n return new DragRef(element, config, this._document, this._ngZone, this._viewportRuler,\n this._dragDropRegistry);\n }\n\n /**\n * Turns an element into a drop list.\n * @param element Element to which to attach the drop list functionality.\n */\n createDropList(element: ElementRef | HTMLElement): DropListRef {\n return new DropListRef(element, this._dragDropRegistry, this._document, this._ngZone,\n this._viewportRuler);\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {InjectionToken} from '@angular/core';\n\n/**\n * Injection token that can be used for a `CdkDrag` to provide itself as a parent to the\n * drag-specific child directive (`CdkDragHandle`, `CdkDragPreview` etc.). Used primarily\n * to avoid circular imports.\n * @docs-private\n */\nexport const CDK_DRAG_PARENT = new InjectionToken<{}>('CDK_DRAG_PARENT');\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {CdkDrag} from './directives/drag';\nimport {CdkDropList} from './directives/drop-list';\n\n/** Event emitted when the user starts dragging a draggable. */\nexport interface CdkDragStart {\n /** Draggable that emitted the event. */\n source: CdkDrag;\n}\n\n/** Event emitted when the user releases an item, before any animations have started. */\nexport interface CdkDragRelease {\n /** Draggable that emitted the event. */\n source: CdkDrag;\n}\n\n/** Event emitted when the user stops dragging a draggable. */\nexport interface CdkDragEnd {\n /** Draggable that emitted the event. */\n source: CdkDrag;\n /** Distance in pixels that the user has dragged since the drag sequence started. */\n distance: {x: number, y: number};\n /** Position where the pointer was when the item was dropped */\n dropPoint: {x: number, y: number};\n}\n\n/** Event emitted when the user moves an item into a new drop container. */\nexport interface CdkDragEnter {\n /** Container into which the user has moved the item. */\n container: CdkDropList;\n /** Item that was moved into the container. */\n item: CdkDrag;\n /** Index at which the item has entered the container. */\n currentIndex: number;\n}\n\n/**\n * Event emitted when the user removes an item from a\n * drop container by moving it into another one.\n */\nexport interface CdkDragExit {\n /** Container from which the user has a removed an item. */\n container: CdkDropList;\n /** Item that was removed from the container. */\n item: CdkDrag;\n}\n\n\n/** Event emitted when the user drops a draggable item inside a drop container. */\nexport interface CdkDragDrop {\n /** Index of the item when it was picked up. */\n previousIndex: number;\n /** Current index of the item. */\n currentIndex: number;\n /** Item that is being dropped. */\n item: CdkDrag;\n /** Container in which the item was dropped. */\n container: CdkDropList;\n /** Container from which the item was picked up. Can be the same as the `container`. */\n previousContainer: CdkDropList;\n /** Whether the user's pointer was over the container when the item was dropped. */\n isPointerOverContainer: boolean;\n /** Distance in pixels that the user has dragged since the drag sequence started. */\n distance: {x: number, y: number};\n /** Position where the pointer was when the item was dropped */\n dropPoint: {x: number, y: number};\n}\n\n/** Event emitted as the user is dragging a draggable item. */\nexport interface CdkDragMove {\n /** Item that is being dragged. */\n source: CdkDrag;\n /** Position of the user's pointer on the page. */\n pointerPosition: {x: number, y: number};\n /** Native event that is causing the dragging. */\n event: MouseEvent | TouchEvent;\n /** Distance in pixels that the user has dragged since the drag sequence started. */\n distance: {x: number, y: number};\n /**\n * Indicates the direction in which the user is dragging the element along each axis.\n * `1` means that the position is increasing (e.g. the user is moving to the right or downwards),\n * whereas `-1` means that it's decreasing (they're moving to the left or upwards). `0` means\n * that the position hasn't changed.\n */\n delta: {x: -1 | 0 | 1, y: -1 | 0 | 1};\n}\n\n/** Event emitted when the user swaps the position of two drag items. */\nexport interface CdkDragSortEvent {\n /** Index from which the item was sorted previously. */\n previousIndex: number;\n /** Index that the item is currently in. */\n currentIndex: number;\n /** Container that the item belongs to. */\n container: CdkDropList;\n /** Item that is being sorted. */\n item: CdkDrag;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Directive, OnDestroy, Input, InjectionToken} from '@angular/core';\nimport {BooleanInput, coerceBooleanProperty} from '@angular/cdk/coercion';\n\n/**\n * Injection token that can be used to reference instances of `CdkDropListGroup`. It serves as\n * alternative token to the actual `CdkDropListGroup` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport const CDK_DROP_LIST_GROUP =\n new InjectionToken>('CdkDropListGroup');\n\n/**\n * Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`\n * elements that are placed inside a `cdkDropListGroup` will be connected to each other\n * automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input\n * from `cdkDropList`.\n */\n@Directive({\n selector: '[cdkDropListGroup]',\n exportAs: 'cdkDropListGroup',\n providers: [{provide: CDK_DROP_LIST_GROUP, useExisting: CdkDropListGroup}],\n})\nexport class CdkDropListGroup implements OnDestroy {\n /** Drop lists registered inside the group. */\n readonly _items = new Set();\n\n /** Whether starting a dragging sequence from inside this group is disabled. */\n @Input('cdkDropListGroupDisabled')\n get disabled(): boolean { return this._disabled; }\n set disabled(value: boolean) {\n this._disabled = coerceBooleanProperty(value);\n }\n private _disabled = false;\n\n ngOnDestroy() {\n this._items.clear();\n }\n\n static ngAcceptInputType_disabled: BooleanInput;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {InjectionToken} from '@angular/core';\nimport {DragRefConfig, Point, DragRef} from '../drag-ref';\n\n/** Possible values that can be used to configure the drag start delay. */\nexport type DragStartDelay = number | {touch: number, mouse: number};\n\n/** Possible axis along which dragging can be locked. */\nexport type DragAxis = 'x' | 'y';\n\n/** Function that can be used to constrain the position of a dragged element. */\nexport type DragConstrainPosition = (point: Point, dragRef: DragRef) => Point;\n\n/** Possible orientations for a drop list. */\nexport type DropListOrientation = 'horizontal' | 'vertical';\n\n/**\n * Injection token that can be used to configure the\n * behavior of the drag&drop-related components.\n */\nexport const CDK_DRAG_CONFIG = new InjectionToken('CDK_DRAG_CONFIG');\n\n/**\n * Object that can be used to configure the drag\n * items and drop lists within a module or a component.\n */\nexport interface DragDropConfig extends Partial {\n lockAxis?: DragAxis;\n dragStartDelay?: DragStartDelay;\n constrainPosition?: DragConstrainPosition;\n previewClass?: string | string[];\n boundaryElement?: string;\n rootElementSelector?: string;\n draggingDisabled?: boolean;\n sortingDisabled?: boolean;\n listAutoScrollDisabled?: boolean;\n listOrientation?: DropListOrientation;\n zIndex?: number;\n previewContainer?: 'global' | 'parent';\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Asserts that a particular node is an element.\n * @param node Node to be checked.\n * @param name Name to attach to the error message.\n */\nexport function assertElementNode(node: Node, name: string): asserts node is HTMLElement {\n if (node.nodeType !== 1) {\n throw Error(`${name} must be attached to an element node. ` +\n `Currently attached to \"${node.nodeName}\".`);\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n BooleanInput,\n coerceArray,\n coerceNumberProperty,\n coerceBooleanProperty,\n NumberInput,\n} from '@angular/cdk/coercion';\nimport {\n ElementRef,\n EventEmitter,\n Input,\n OnDestroy,\n Output,\n Optional,\n Directive,\n ChangeDetectorRef,\n SkipSelf,\n Inject,\n InjectionToken,\n} from '@angular/core';\nimport {Directionality} from '@angular/cdk/bidi';\nimport {ScrollDispatcher} from '@angular/cdk/scrolling';\nimport {CdkDrag} from './drag';\nimport {CdkDragDrop, CdkDragEnter, CdkDragExit, CdkDragSortEvent} from '../drag-events';\nimport {CDK_DROP_LIST_GROUP, CdkDropListGroup} from './drop-list-group';\nimport {DropListRef} from '../drop-list-ref';\nimport {DragRef} from '../drag-ref';\nimport {DragDrop} from '../drag-drop';\nimport {DropListOrientation, DragAxis, DragDropConfig, CDK_DRAG_CONFIG} from './config';\nimport {Subject} from 'rxjs';\nimport {startWith, takeUntil} from 'rxjs/operators';\nimport {assertElementNode} from './assertions';\n\n/** Counter used to generate unique ids for drop zones. */\nlet _uniqueIdCounter = 0;\n\n/**\n * Internal compile-time-only representation of a `CdkDropList`.\n * Used to avoid circular import issues between the `CdkDropList` and the `CdkDrag`.\n * @docs-private\n */\nexport interface CdkDropListInternal extends CdkDropList {}\n\n/**\n * Injection token that can be used to reference instances of `CdkDropList`. It serves as\n * alternative token to the actual `CdkDropList` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport const CDK_DROP_LIST = new InjectionToken('CdkDropList');\n\n/** Container that wraps a set of draggable items. */\n@Directive({\n selector: '[cdkDropList], cdk-drop-list',\n exportAs: 'cdkDropList',\n providers: [\n // Prevent child drop lists from picking up the same group as their parent.\n {provide: CDK_DROP_LIST_GROUP, useValue: undefined},\n {provide: CDK_DROP_LIST, useExisting: CdkDropList},\n ],\n host: {\n 'class': 'cdk-drop-list',\n '[attr.id]': 'id',\n '[class.cdk-drop-list-disabled]': 'disabled',\n '[class.cdk-drop-list-dragging]': '_dropListRef.isDragging()',\n '[class.cdk-drop-list-receiving]': '_dropListRef.isReceiving()',\n }\n})\nexport class CdkDropList implements OnDestroy {\n /** Emits when the list has been destroyed. */\n private readonly _destroyed = new Subject();\n\n /** Whether the element's scrollable parents have been resolved. */\n private _scrollableParentsResolved: boolean;\n\n /** Keeps track of the drop lists that are currently on the page. */\n private static _dropLists: CdkDropList[] = [];\n\n /** Reference to the underlying drop list instance. */\n _dropListRef: DropListRef>;\n\n /**\n * Other draggable containers that this container is connected to and into which the\n * container's items can be transferred. Can either be references to other drop containers,\n * or their unique IDs.\n */\n @Input('cdkDropListConnectedTo')\n connectedTo: (CdkDropList | string)[] | CdkDropList | string = [];\n\n /** Arbitrary data to attach to this container. */\n @Input('cdkDropListData') data: T;\n\n /** Direction in which the list is oriented. */\n @Input('cdkDropListOrientation') orientation: DropListOrientation;\n\n /**\n * Unique ID for the drop zone. Can be used as a reference\n * in the `connectedTo` of another `CdkDropList`.\n */\n @Input() id: string = `cdk-drop-list-${_uniqueIdCounter++}`;\n\n /** Locks the position of the draggable elements inside the container along the specified axis. */\n @Input('cdkDropListLockAxis') lockAxis: DragAxis;\n\n /** Whether starting a dragging sequence from this container is disabled. */\n @Input('cdkDropListDisabled')\n get disabled(): boolean {\n return this._disabled || (!!this._group && this._group.disabled);\n }\n set disabled(value: boolean) {\n // Usually we sync the directive and ref state right before dragging starts, in order to have\n // a single point of failure and to avoid having to use setters for everything. `disabled` is\n // a special case, because it can prevent the `beforeStarted` event from firing, which can lock\n // the user in a disabled state, so we also need to sync it as it's being set.\n this._dropListRef.disabled = this._disabled = coerceBooleanProperty(value);\n }\n private _disabled: boolean;\n\n /** Whether sorting within this drop list is disabled. */\n @Input('cdkDropListSortingDisabled')\n sortingDisabled: boolean;\n\n /**\n * Function that is used to determine whether an item\n * is allowed to be moved into a drop container.\n */\n @Input('cdkDropListEnterPredicate')\n enterPredicate: (drag: CdkDrag, drop: CdkDropList) => boolean = () => true\n\n /** Functions that is used to determine whether an item can be sorted into a particular index. */\n @Input('cdkDropListSortPredicate')\n sortPredicate: (index: number, drag: CdkDrag, drop: CdkDropList) => boolean = () => true\n\n /** Whether to auto-scroll the view when the user moves their pointer close to the edges. */\n @Input('cdkDropListAutoScrollDisabled')\n autoScrollDisabled: boolean;\n\n /** Number of pixels to scroll for each frame when auto-scrolling an element. */\n @Input('cdkDropListAutoScrollStep')\n autoScrollStep: number;\n\n /** Emits when the user drops an item inside the container. */\n @Output('cdkDropListDropped')\n readonly dropped: EventEmitter> = new EventEmitter>();\n\n /**\n * Emits when the user has moved a new drag item into this container.\n */\n @Output('cdkDropListEntered')\n readonly entered: EventEmitter> = new EventEmitter>();\n\n /**\n * Emits when the user removes an item from the container\n * by dragging it into another container.\n */\n @Output('cdkDropListExited')\n readonly exited: EventEmitter> = new EventEmitter>();\n\n /** Emits as the user is swapping items while actively dragging. */\n @Output('cdkDropListSorted')\n readonly sorted: EventEmitter> = new EventEmitter>();\n\n /**\n * Keeps track of the items that are registered with this container. Historically we used to\n * do this with a `ContentChildren` query, however queries don't handle transplanted views very\n * well which means that we can't handle cases like dragging the headers of a `mat-table`\n * correctly. What we do instead is to have the items register themselves with the container\n * and then we sort them based on their position in the DOM.\n */\n private _unsortedItems = new Set();\n\n constructor(\n /** Element that the drop list is attached to. */\n public element: ElementRef, dragDrop: DragDrop,\n private _changeDetectorRef: ChangeDetectorRef,\n private _scrollDispatcher: ScrollDispatcher,\n @Optional() private _dir?: Directionality,\n @Optional() @Inject(CDK_DROP_LIST_GROUP) @SkipSelf()\n private _group?: CdkDropListGroup,\n @Optional() @Inject(CDK_DRAG_CONFIG) config?: DragDropConfig) {\n\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n assertElementNode(element.nativeElement, 'cdkDropList');\n }\n\n this._dropListRef = dragDrop.createDropList(element);\n this._dropListRef.data = this;\n\n if (config) {\n this._assignDefaults(config);\n }\n\n this._dropListRef.enterPredicate = (drag: DragRef, drop: DropListRef) => {\n return this.enterPredicate(drag.data, drop.data);\n };\n\n this._dropListRef.sortPredicate =\n (index: number, drag: DragRef, drop: DropListRef) => {\n return this.sortPredicate(index, drag.data, drop.data);\n };\n\n this._setupInputSyncSubscription(this._dropListRef);\n this._handleEvents(this._dropListRef);\n CdkDropList._dropLists.push(this);\n\n if (_group) {\n _group._items.add(this);\n }\n }\n\n /** Registers an items with the drop list. */\n addItem(item: CdkDrag): void {\n this._unsortedItems.add(item);\n\n if (this._dropListRef.isDragging()) {\n this._syncItemsWithRef();\n }\n }\n\n /** Removes an item from the drop list. */\n removeItem(item: CdkDrag): void {\n this._unsortedItems.delete(item);\n\n if (this._dropListRef.isDragging()) {\n this._syncItemsWithRef();\n }\n }\n\n /** Gets the registered items in the list, sorted by their position in the DOM. */\n getSortedItems(): CdkDrag[] {\n return Array.from(this._unsortedItems).sort((a: CdkDrag, b: CdkDrag) => {\n const documentPosition =\n a._dragRef.getVisibleElement().compareDocumentPosition(b._dragRef.getVisibleElement());\n\n // `compareDocumentPosition` returns a bitmask so we have to use a bitwise operator.\n // https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition\n // tslint:disable-next-line:no-bitwise\n return documentPosition & Node.DOCUMENT_POSITION_FOLLOWING ? -1 : 1;\n });\n }\n\n ngOnDestroy() {\n const index = CdkDropList._dropLists.indexOf(this);\n\n if (index > -1) {\n CdkDropList._dropLists.splice(index, 1);\n }\n\n if (this._group) {\n this._group._items.delete(this);\n }\n\n this._unsortedItems.clear();\n this._dropListRef.dispose();\n this._destroyed.next();\n this._destroyed.complete();\n }\n\n /** Syncs the inputs of the CdkDropList with the options of the underlying DropListRef. */\n private _setupInputSyncSubscription(ref: DropListRef) {\n if (this._dir) {\n this._dir.change\n .pipe(startWith(this._dir.value), takeUntil(this._destroyed))\n .subscribe(value => ref.withDirection(value));\n }\n\n ref.beforeStarted.subscribe(() => {\n const siblings = coerceArray(this.connectedTo).map(drop => {\n if (typeof drop === 'string') {\n const correspondingDropList = CdkDropList._dropLists.find(list => list.id === drop);\n\n if (!correspondingDropList && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n console.warn(`CdkDropList could not find connected drop list with id \"${drop}\"`);\n }\n\n return correspondingDropList!;\n }\n\n return drop;\n });\n\n if (this._group) {\n this._group._items.forEach(drop => {\n if (siblings.indexOf(drop) === -1) {\n siblings.push(drop);\n }\n });\n }\n\n // Note that we resolve the scrollable parents here so that we delay the resolution\n // as long as possible, ensuring that the element is in its final place in the DOM.\n if (!this._scrollableParentsResolved) {\n const scrollableParents = this._scrollDispatcher\n .getAncestorScrollContainers(this.element)\n .map(scrollable => scrollable.getElementRef().nativeElement);\n this._dropListRef.withScrollableParents(scrollableParents);\n\n // Only do this once since it involves traversing the DOM and the parents\n // shouldn't be able to change without the drop list being destroyed.\n this._scrollableParentsResolved = true;\n }\n\n ref.disabled = this.disabled;\n ref.lockAxis = this.lockAxis;\n ref.sortingDisabled = coerceBooleanProperty(this.sortingDisabled);\n ref.autoScrollDisabled = coerceBooleanProperty(this.autoScrollDisabled);\n ref.autoScrollStep = coerceNumberProperty(this.autoScrollStep, 2);\n ref\n .connectedTo(siblings.filter(drop => drop && drop !== this).map(list => list._dropListRef))\n .withOrientation(this.orientation);\n });\n }\n\n /** Handles events from the underlying DropListRef. */\n private _handleEvents(ref: DropListRef) {\n ref.beforeStarted.subscribe(() => {\n this._syncItemsWithRef();\n this._changeDetectorRef.markForCheck();\n });\n\n ref.entered.subscribe(event => {\n this.entered.emit({\n container: this,\n item: event.item.data,\n currentIndex: event.currentIndex\n });\n });\n\n ref.exited.subscribe(event => {\n this.exited.emit({\n container: this,\n item: event.item.data\n });\n this._changeDetectorRef.markForCheck();\n });\n\n ref.sorted.subscribe(event => {\n this.sorted.emit({\n previousIndex: event.previousIndex,\n currentIndex: event.currentIndex,\n container: this,\n item: event.item.data\n });\n });\n\n ref.dropped.subscribe(event => {\n this.dropped.emit({\n previousIndex: event.previousIndex,\n currentIndex: event.currentIndex,\n previousContainer: event.previousContainer.data,\n container: event.container.data,\n item: event.item.data,\n isPointerOverContainer: event.isPointerOverContainer,\n distance: event.distance,\n dropPoint: event.dropPoint\n });\n\n // Mark for check since all of these events run outside of change\n // detection and we're not guaranteed for something else to have triggered it.\n this._changeDetectorRef.markForCheck();\n });\n }\n\n /** Assigns the default input values based on a provided config object. */\n private _assignDefaults(config: DragDropConfig) {\n const {\n lockAxis, draggingDisabled, sortingDisabled, listAutoScrollDisabled, listOrientation\n } = config;\n\n this.disabled = draggingDisabled == null ? false : draggingDisabled;\n this.sortingDisabled = sortingDisabled == null ? false : sortingDisabled;\n this.autoScrollDisabled = listAutoScrollDisabled == null ? false : listAutoScrollDisabled;\n this.orientation = listOrientation || 'vertical';\n\n if (lockAxis) {\n this.lockAxis = lockAxis;\n }\n }\n\n /** Syncs up the registered drag items with underlying drop list ref. */\n private _syncItemsWithRef() {\n this._dropListRef.withItems(this.getSortedItems().map(item => item._dragRef));\n }\n\n static ngAcceptInputType_disabled: BooleanInput;\n static ngAcceptInputType_sortingDisabled: BooleanInput;\n static ngAcceptInputType_autoScrollDisabled: BooleanInput;\n static ngAcceptInputType_autoScrollStep: NumberInput;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {BooleanInput, coerceBooleanProperty} from '@angular/cdk/coercion';\nimport {\n Directive,\n ElementRef,\n Inject,\n InjectionToken,\n Input,\n OnDestroy,\n Optional,\n SkipSelf,\n} from '@angular/core';\nimport {Subject} from 'rxjs';\nimport {CDK_DRAG_PARENT} from '../drag-parent';\nimport {assertElementNode} from './assertions';\n\n/**\n * Injection token that can be used to reference instances of `CdkDragHandle`. It serves as\n * alternative token to the actual `CdkDragHandle` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport const CDK_DRAG_HANDLE = new InjectionToken('CdkDragHandle');\n\n/** Handle that can be used to drag a CdkDrag instance. */\n@Directive({\n selector: '[cdkDragHandle]',\n host: {\n 'class': 'cdk-drag-handle'\n },\n providers: [{provide: CDK_DRAG_HANDLE, useExisting: CdkDragHandle}],\n})\nexport class CdkDragHandle implements OnDestroy {\n /** Closest parent draggable instance. */\n _parentDrag: {} | undefined;\n\n /** Emits when the state of the handle has changed. */\n readonly _stateChanges = new Subject();\n\n /** Whether starting to drag through this handle is disabled. */\n @Input('cdkDragHandleDisabled')\n get disabled(): boolean { return this._disabled; }\n set disabled(value: boolean) {\n this._disabled = coerceBooleanProperty(value);\n this._stateChanges.next(this);\n }\n private _disabled = false;\n\n constructor(\n public element: ElementRef,\n @Inject(CDK_DRAG_PARENT) @Optional() @SkipSelf() parentDrag?: any) {\n\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n assertElementNode(element.nativeElement, 'cdkDragHandle');\n }\n\n this._parentDrag = parentDrag;\n }\n\n ngOnDestroy() {\n this._stateChanges.complete();\n }\n\n static ngAcceptInputType_disabled: BooleanInput;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Directive, TemplateRef, Input, InjectionToken} from '@angular/core';\n\n/**\n * Injection token that can be used to reference instances of `CdkDragPlaceholder`. It serves as\n * alternative token to the actual `CdkDragPlaceholder` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport const CDK_DRAG_PLACEHOLDER = new InjectionToken('CdkDragPlaceholder');\n\n/**\n * Element that will be used as a template for the placeholder of a CdkDrag when\n * it is being dragged. The placeholder is displayed in place of the element being dragged.\n */\n@Directive({\n selector: 'ng-template[cdkDragPlaceholder]',\n providers: [{provide: CDK_DRAG_PLACEHOLDER, useExisting: CdkDragPlaceholder}],\n})\nexport class CdkDragPlaceholder {\n /** Context data to be added to the placeholder template instance. */\n @Input() data: T;\n constructor(public templateRef: TemplateRef) {}\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {BooleanInput, coerceBooleanProperty} from '@angular/cdk/coercion';\nimport {Directive, InjectionToken, Input, TemplateRef} from '@angular/core';\n\n/**\n * Injection token that can be used to reference instances of `CdkDragPreview`. It serves as\n * alternative token to the actual `CdkDragPreview` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport const CDK_DRAG_PREVIEW = new InjectionToken('CdkDragPreview');\n\n/**\n * Element that will be used as a template for the preview\n * of a CdkDrag when it is being dragged.\n */\n@Directive({\n selector: 'ng-template[cdkDragPreview]',\n providers: [{provide: CDK_DRAG_PREVIEW, useExisting: CdkDragPreview}],\n})\nexport class CdkDragPreview {\n /** Context data to be added to the preview template instance. */\n @Input() data: T;\n\n /** Whether the preview should preserve the same size as the item that is being dragged. */\n @Input()\n get matchSize(): boolean { return this._matchSize; }\n set matchSize(value: boolean) { this._matchSize = coerceBooleanProperty(value); }\n private _matchSize = false;\n\n constructor(public templateRef: TemplateRef) {}\n\n static ngAcceptInputType_matchSize: BooleanInput;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Directionality} from '@angular/cdk/bidi';\nimport {DOCUMENT} from '@angular/common';\nimport {\n AfterViewInit,\n ContentChild,\n ContentChildren,\n Directive,\n ElementRef,\n EventEmitter,\n Inject,\n Input,\n NgZone,\n OnDestroy,\n Optional,\n Output,\n QueryList,\n SkipSelf,\n ViewContainerRef,\n OnChanges,\n SimpleChanges,\n ChangeDetectorRef,\n Self,\n} from '@angular/core';\nimport {\n coerceBooleanProperty,\n coerceNumberProperty,\n coerceElement,\n BooleanInput\n} from '@angular/cdk/coercion';\nimport {Observable, Observer, Subject, merge} from 'rxjs';\nimport {startWith, take, map, takeUntil, switchMap, tap} from 'rxjs/operators';\nimport {\n CdkDragDrop,\n CdkDragEnd,\n CdkDragEnter,\n CdkDragExit,\n CdkDragMove,\n CdkDragStart,\n CdkDragRelease,\n} from '../drag-events';\nimport {CDK_DRAG_HANDLE, CdkDragHandle} from './drag-handle';\nimport {CDK_DRAG_PLACEHOLDER, CdkDragPlaceholder} from './drag-placeholder';\nimport {CDK_DRAG_PREVIEW, CdkDragPreview} from './drag-preview';\nimport {CDK_DRAG_PARENT} from '../drag-parent';\nimport {DragRef, Point, PreviewContainer} from '../drag-ref';\nimport {CDK_DROP_LIST, CdkDropListInternal as CdkDropList} from './drop-list';\nimport {DragDrop} from '../drag-drop';\nimport {CDK_DRAG_CONFIG, DragDropConfig, DragStartDelay, DragAxis} from './config';\nimport {assertElementNode} from './assertions';\n\nconst DRAG_HOST_CLASS = 'cdk-drag';\n\n/** Element that can be moved inside a CdkDropList container. */\n@Directive({\n selector: '[cdkDrag]',\n exportAs: 'cdkDrag',\n host: {\n 'class': DRAG_HOST_CLASS,\n '[class.cdk-drag-disabled]': 'disabled',\n '[class.cdk-drag-dragging]': '_dragRef.isDragging()',\n },\n providers: [{provide: CDK_DRAG_PARENT, useExisting: CdkDrag}]\n})\nexport class CdkDrag implements AfterViewInit, OnChanges, OnDestroy {\n private readonly _destroyed = new Subject();\n private static _dragInstances: CdkDrag[] = [];\n\n /** Reference to the underlying drag instance. */\n _dragRef: DragRef>;\n\n /** Elements that can be used to drag the draggable item. */\n @ContentChildren(CDK_DRAG_HANDLE, {descendants: true}) _handles: QueryList;\n\n /** Element that will be used as a template to create the draggable item's preview. */\n @ContentChild(CDK_DRAG_PREVIEW) _previewTemplate: CdkDragPreview;\n\n /** Template for placeholder element rendered to show where a draggable would be dropped. */\n @ContentChild(CDK_DRAG_PLACEHOLDER) _placeholderTemplate: CdkDragPlaceholder;\n\n /** Arbitrary data to attach to this drag instance. */\n @Input('cdkDragData') data: T;\n\n /** Locks the position of the dragged element along the specified axis. */\n @Input('cdkDragLockAxis') lockAxis: DragAxis;\n\n /**\n * Selector that will be used to determine the root draggable element, starting from\n * the `cdkDrag` element and going up the DOM. Passing an alternate root element is useful\n * when trying to enable dragging on an element that you might not have access to.\n */\n @Input('cdkDragRootElement') rootElementSelector: string;\n\n /**\n * Node or selector that will be used to determine the element to which the draggable's\n * position will be constrained. If a string is passed in, it'll be used as a selector that\n * will be matched starting from the element's parent and going up the DOM until a match\n * has been found.\n */\n @Input('cdkDragBoundary') boundaryElement: string | ElementRef | HTMLElement;\n\n /**\n * Amount of milliseconds to wait after the user has put their\n * pointer down before starting to drag the element.\n */\n @Input('cdkDragStartDelay') dragStartDelay: DragStartDelay;\n\n /**\n * Sets the position of a `CdkDrag` that is outside of a drop container.\n * Can be used to restore the element's position for a returning user.\n */\n @Input('cdkDragFreeDragPosition') freeDragPosition: {x: number, y: number};\n\n /** Whether starting to drag this element is disabled. */\n @Input('cdkDragDisabled')\n get disabled(): boolean {\n return this._disabled || (this.dropContainer && this.dropContainer.disabled);\n }\n set disabled(value: boolean) {\n this._disabled = coerceBooleanProperty(value);\n this._dragRef.disabled = this._disabled;\n }\n private _disabled: boolean;\n\n /**\n * Function that can be used to customize the logic of how the position of the drag item\n * is limited while it's being dragged. Gets called with a point containing the current position\n * of the user's pointer on the page and should return a point describing where the item should\n * be rendered.\n */\n @Input('cdkDragConstrainPosition') constrainPosition?: (point: Point, dragRef: DragRef) => Point;\n\n /** Class to be added to the preview element. */\n @Input('cdkDragPreviewClass') previewClass: string | string[];\n\n /**\n * Configures the place into which the preview of the item will be inserted. Can be configured\n * globally through `CDK_DROP_LIST`. Possible values:\n * - `global` - Preview will be inserted at the bottom of the ``. The advantage is that\n * you don't have to worry about `overflow: hidden` or `z-index`, but the item won't retain\n * its inherited styles.\n * - `parent` - Preview will be inserted into the parent of the drag item. The advantage is that\n * inherited styles will be preserved, but it may be clipped by `overflow: hidden` or not be\n * visible due to `z-index`. Furthermore, the preview is going to have an effect over selectors\n * like `:nth-child` and some flexbox configurations.\n * - `ElementRef | HTMLElement` - Preview will be inserted into a specific element.\n * Same advantages and disadvantages as `parent`.\n */\n @Input('cdkDragPreviewContainer') previewContainer: PreviewContainer;\n\n /** Emits when the user starts dragging the item. */\n @Output('cdkDragStarted') readonly started: EventEmitter =\n new EventEmitter();\n\n /** Emits when the user has released a drag item, before any animations have started. */\n @Output('cdkDragReleased') readonly released: EventEmitter =\n new EventEmitter();\n\n /** Emits when the user stops dragging an item in the container. */\n @Output('cdkDragEnded') readonly ended: EventEmitter = new EventEmitter();\n\n /** Emits when the user has moved the item into a new container. */\n @Output('cdkDragEntered') readonly entered: EventEmitter> =\n new EventEmitter>();\n\n /** Emits when the user removes the item its container by dragging it into another container. */\n @Output('cdkDragExited') readonly exited: EventEmitter> =\n new EventEmitter>();\n\n /** Emits when the user drops the item inside a container. */\n @Output('cdkDragDropped') readonly dropped: EventEmitter> =\n new EventEmitter>();\n\n /**\n * Emits as the user is dragging the item. Use with caution,\n * because this event will fire for every pixel that the user has dragged.\n */\n @Output('cdkDragMoved')\n readonly moved: Observable> =\n new Observable((observer: Observer>) => {\n const subscription = this._dragRef.moved.pipe(map(movedEvent => ({\n source: this,\n pointerPosition: movedEvent.pointerPosition,\n event: movedEvent.event,\n delta: movedEvent.delta,\n distance: movedEvent.distance\n }))).subscribe(observer);\n\n return () => {\n subscription.unsubscribe();\n };\n });\n\n constructor(\n /** Element that the draggable is attached to. */\n public element: ElementRef,\n /** Droppable container that the draggable is a part of. */\n @Inject(CDK_DROP_LIST) @Optional() @SkipSelf() public dropContainer: CdkDropList,\n /**\n * @deprecated `_document` parameter no longer being used and will be removed.\n * @breaking-change 12.0.0\n */\n @Inject(DOCUMENT) _document: any, private _ngZone: NgZone,\n private _viewContainerRef: ViewContainerRef,\n @Optional() @Inject(CDK_DRAG_CONFIG) config: DragDropConfig,\n @Optional() private _dir: Directionality, dragDrop: DragDrop,\n private _changeDetectorRef: ChangeDetectorRef,\n @Optional() @Self() @Inject(CDK_DRAG_HANDLE) private _selfHandle?: CdkDragHandle,\n @Optional() @SkipSelf() @Inject(CDK_DRAG_PARENT) private _parentDrag?: CdkDrag) {\n this._dragRef = dragDrop.createDrag(element, {\n dragStartThreshold: config && config.dragStartThreshold != null ?\n config.dragStartThreshold : 5,\n pointerDirectionChangeThreshold: config && config.pointerDirectionChangeThreshold != null ?\n config.pointerDirectionChangeThreshold : 5,\n zIndex: config?.zIndex,\n });\n this._dragRef.data = this;\n\n // We have to keep track of the drag instances in order to be able to match an element to\n // a drag instance. We can't go through the global registry of `DragRef`, because the root\n // element could be different.\n CdkDrag._dragInstances.push(this);\n\n if (config) {\n this._assignDefaults(config);\n }\n\n // Note that usually the container is assigned when the drop list is picks up the item, but in\n // some cases (mainly transplanted views with OnPush, see #18341) we may end up in a situation\n // where there are no items on the first change detection pass, but the items get picked up as\n // soon as the user triggers another pass by dragging. This is a problem, because the item would\n // have to switch from standalone mode to drag mode in the middle of the dragging sequence which\n // is too late since the two modes save different kinds of information. We work around it by\n // assigning the drop container both from here and the list.\n if (dropContainer) {\n this._dragRef._withDropContainer(dropContainer._dropListRef);\n dropContainer.addItem(this);\n }\n\n this._syncInputs(this._dragRef);\n this._handleEvents(this._dragRef);\n }\n\n /**\n * Returns the element that is being used as a placeholder\n * while the current element is being dragged.\n */\n getPlaceholderElement(): HTMLElement {\n return this._dragRef.getPlaceholderElement();\n }\n\n /** Returns the root draggable element. */\n getRootElement(): HTMLElement {\n return this._dragRef.getRootElement();\n }\n\n /** Resets a standalone drag item to its initial position. */\n reset(): void {\n this._dragRef.reset();\n }\n\n /**\n * Gets the pixel coordinates of the draggable outside of a drop container.\n */\n getFreeDragPosition(): {readonly x: number, readonly y: number} {\n return this._dragRef.getFreeDragPosition();\n }\n\n ngAfterViewInit() {\n // Normally this isn't in the zone, but it can cause major performance regressions for apps\n // using `zone-patch-rxjs` because it'll trigger a change detection when it unsubscribes.\n this._ngZone.runOutsideAngular(() => {\n // We need to wait for the zone to stabilize, in order for the reference\n // element to be in the proper place in the DOM. This is mostly relevant\n // for draggable elements inside portals since they get stamped out in\n // their original DOM position and then they get transferred to the portal.\n this._ngZone.onStable\n .pipe(take(1), takeUntil(this._destroyed))\n .subscribe(() => {\n this._updateRootElement();\n this._setupHandlesListener();\n\n if (this.freeDragPosition) {\n this._dragRef.setFreeDragPosition(this.freeDragPosition);\n }\n });\n });\n }\n\n ngOnChanges(changes: SimpleChanges) {\n const rootSelectorChange = changes['rootElementSelector'];\n const positionChange = changes['freeDragPosition'];\n\n // We don't have to react to the first change since it's being\n // handled in `ngAfterViewInit` where it needs to be deferred.\n if (rootSelectorChange && !rootSelectorChange.firstChange) {\n this._updateRootElement();\n }\n\n // Skip the first change since it's being handled in `ngAfterViewInit`.\n if (positionChange && !positionChange.firstChange && this.freeDragPosition) {\n this._dragRef.setFreeDragPosition(this.freeDragPosition);\n }\n }\n\n ngOnDestroy() {\n if (this.dropContainer) {\n this.dropContainer.removeItem(this);\n }\n\n const index = CdkDrag._dragInstances.indexOf(this);\n if (index > -1) {\n CdkDrag._dragInstances.splice(index, 1);\n }\n\n // Unnecessary in most cases, but used to avoid extra change detections with `zone-paths-rxjs`.\n this._ngZone.runOutsideAngular(() => {\n this._destroyed.next();\n this._destroyed.complete();\n this._dragRef.dispose();\n });\n }\n\n /** Syncs the root element with the `DragRef`. */\n private _updateRootElement() {\n const element = this.element.nativeElement;\n const rootElement = this.rootElementSelector ?\n getClosestMatchingAncestor(element, this.rootElementSelector) : element;\n\n if (rootElement && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n assertElementNode(rootElement, 'cdkDrag');\n }\n\n this._dragRef.withRootElement(rootElement || element);\n }\n\n /** Gets the boundary element, based on the `boundaryElement` value. */\n private _getBoundaryElement() {\n const boundary = this.boundaryElement;\n\n if (!boundary) {\n return null;\n }\n\n if (typeof boundary === 'string') {\n return getClosestMatchingAncestor(this.element.nativeElement, boundary);\n }\n\n const element = coerceElement(boundary);\n\n if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n !element.contains(this.element.nativeElement)) {\n throw Error('Draggable element is not inside of the node passed into cdkDragBoundary.');\n }\n\n return element;\n }\n\n /** Syncs the inputs of the CdkDrag with the options of the underlying DragRef. */\n private _syncInputs(ref: DragRef>) {\n ref.beforeStarted.subscribe(() => {\n if (!ref.isDragging()) {\n const dir = this._dir;\n const dragStartDelay = this.dragStartDelay;\n const placeholder = this._placeholderTemplate ? {\n template: this._placeholderTemplate.templateRef,\n context: this._placeholderTemplate.data,\n viewContainer: this._viewContainerRef\n } : null;\n const preview = this._previewTemplate ? {\n template: this._previewTemplate.templateRef,\n context: this._previewTemplate.data,\n matchSize: this._previewTemplate.matchSize,\n viewContainer: this._viewContainerRef\n } : null;\n\n ref.disabled = this.disabled;\n ref.lockAxis = this.lockAxis;\n ref.dragStartDelay = (typeof dragStartDelay === 'object' && dragStartDelay) ?\n dragStartDelay : coerceNumberProperty(dragStartDelay);\n ref.constrainPosition = this.constrainPosition;\n ref.previewClass = this.previewClass;\n ref\n .withBoundaryElement(this._getBoundaryElement())\n .withPlaceholderTemplate(placeholder)\n .withPreviewTemplate(preview)\n .withPreviewContainer(this.previewContainer || 'global');\n\n if (dir) {\n ref.withDirection(dir.value);\n }\n }\n });\n\n // This only needs to be resolved once.\n ref.beforeStarted.pipe(take(1)).subscribe(() => {\n // If we managed to resolve a parent through DI, use it.\n if (this._parentDrag) {\n ref.withParent(this._parentDrag._dragRef);\n return;\n }\n\n // Otherwise fall back to resolving the parent by looking up the DOM. This can happen if\n // the item was projected into another item by something like `ngTemplateOutlet`.\n let parent = this.element.nativeElement.parentElement;\n while (parent) {\n // `classList` needs to be null checked, because IE doesn't have it on some elements.\n if (parent.classList?.contains(DRAG_HOST_CLASS)) {\n ref.withParent(CdkDrag._dragInstances.find(drag => {\n return drag.element.nativeElement === parent;\n })?._dragRef || null);\n break;\n }\n parent = parent.parentElement;\n }\n });\n }\n\n /** Handles the events from the underlying `DragRef`. */\n private _handleEvents(ref: DragRef>) {\n ref.started.subscribe(() => {\n this.started.emit({source: this});\n\n // Since all of these events run outside of change detection,\n // we need to ensure that everything is marked correctly.\n this._changeDetectorRef.markForCheck();\n });\n\n ref.released.subscribe(() => {\n this.released.emit({source: this});\n });\n\n ref.ended.subscribe(event => {\n this.ended.emit({\n source: this,\n distance: event.distance,\n dropPoint: event.dropPoint\n });\n\n // Since all of these events run outside of change detection,\n // we need to ensure that everything is marked correctly.\n this._changeDetectorRef.markForCheck();\n });\n\n ref.entered.subscribe(event => {\n this.entered.emit({\n container: event.container.data,\n item: this,\n currentIndex: event.currentIndex\n });\n });\n\n ref.exited.subscribe(event => {\n this.exited.emit({\n container: event.container.data,\n item: this\n });\n });\n\n ref.dropped.subscribe(event => {\n this.dropped.emit({\n previousIndex: event.previousIndex,\n currentIndex: event.currentIndex,\n previousContainer: event.previousContainer.data,\n container: event.container.data,\n isPointerOverContainer: event.isPointerOverContainer,\n item: this,\n distance: event.distance,\n dropPoint: event.dropPoint\n });\n });\n }\n\n /** Assigns the default input values based on a provided config object. */\n private _assignDefaults(config: DragDropConfig) {\n const {\n lockAxis, dragStartDelay, constrainPosition, previewClass, boundaryElement, draggingDisabled,\n rootElementSelector, previewContainer\n } = config;\n\n this.disabled = draggingDisabled == null ? false : draggingDisabled;\n this.dragStartDelay = dragStartDelay || 0;\n\n if (lockAxis) {\n this.lockAxis = lockAxis;\n }\n\n if (constrainPosition) {\n this.constrainPosition = constrainPosition;\n }\n\n if (previewClass) {\n this.previewClass = previewClass;\n }\n\n if (boundaryElement) {\n this.boundaryElement = boundaryElement;\n }\n\n if (rootElementSelector) {\n this.rootElementSelector = rootElementSelector;\n }\n\n if (previewContainer) {\n this.previewContainer = previewContainer;\n }\n }\n\n /** Sets up the listener that syncs the handles with the drag ref. */\n private _setupHandlesListener() {\n // Listen for any newly-added handles.\n this._handles.changes.pipe(\n startWith(this._handles),\n // Sync the new handles with the DragRef.\n tap((handles: QueryList) => {\n const childHandleElements = handles\n .filter(handle => handle._parentDrag === this)\n .map(handle => handle.element);\n\n // Usually handles are only allowed to be a descendant of the drag element, but if\n // the consumer defined a different drag root, we should allow the drag element\n // itself to be a handle too.\n if (this._selfHandle && this.rootElementSelector) {\n childHandleElements.push(this.element);\n }\n\n this._dragRef.withHandles(childHandleElements);\n }),\n // Listen if the state of any of the handles changes.\n switchMap((handles: QueryList) => {\n return merge(...handles.map(item => {\n return item._stateChanges.pipe(startWith(item));\n })) as Observable;\n }),\n takeUntil(this._destroyed)\n ).subscribe(handleInstance => {\n // Enabled/disable the handle that changed in the DragRef.\n const dragRef = this._dragRef;\n const handle = handleInstance.element.nativeElement;\n handleInstance.disabled ? dragRef.disableHandle(handle) : dragRef.enableHandle(handle);\n });\n }\n\n static ngAcceptInputType_disabled: BooleanInput;\n}\n\n/** Gets the closest ancestor of an element that matches a selector. */\nfunction getClosestMatchingAncestor(element: HTMLElement, selector: string) {\n let currentElement = element.parentElement as HTMLElement | null;\n\n while (currentElement) {\n // IE doesn't support `matches` so we have to fall back to `msMatchesSelector`.\n if (currentElement.matches ? currentElement.matches(selector) :\n (currentElement as any).msMatchesSelector(selector)) {\n return currentElement;\n }\n\n currentElement = currentElement.parentElement;\n }\n\n return null;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {NgModule} from '@angular/core';\nimport {CdkScrollableModule} from '@angular/cdk/scrolling';\nimport {CdkDropList} from './directives/drop-list';\nimport {CdkDropListGroup} from './directives/drop-list-group';\nimport {CdkDrag} from './directives/drag';\nimport {CdkDragHandle} from './directives/drag-handle';\nimport {CdkDragPreview} from './directives/drag-preview';\nimport {CdkDragPlaceholder} from './directives/drag-placeholder';\nimport {DragDrop} from './drag-drop';\n\n@NgModule({\n declarations: [\n CdkDropList,\n CdkDropListGroup,\n CdkDrag,\n CdkDragHandle,\n CdkDragPreview,\n CdkDragPlaceholder,\n ],\n exports: [\n CdkScrollableModule,\n CdkDropList,\n CdkDropListGroup,\n CdkDrag,\n CdkDragHandle,\n CdkDragPreview,\n CdkDragPlaceholder,\n ],\n providers: [\n DragDrop,\n ]\n})\nexport class DragDropModule {}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nexport {DragDrop} from './drag-drop';\nexport {DragRef, DragRefConfig, Point, PreviewContainer} from './drag-ref';\nexport {DropListRef} from './drop-list-ref';\nexport {CDK_DRAG_PARENT} from './drag-parent';\n\nexport * from './drag-events';\nexport * from './drag-utils';\nexport * from './drag-drop-module';\nexport * from './drag-drop-registry';\n\nexport {CdkDropList, CDK_DROP_LIST} from './directives/drop-list';\nexport * from './directives/config';\nexport * from './directives/drop-list-group';\nexport * from './directives/drag';\nexport * from './directives/drag-handle';\nexport * from './directives/drag-preview';\nexport * from './directives/drag-placeholder';\n","/**\n * Generated bundle index. Do not edit.\n */\n\nexport * from './public-api';\n\nexport {CdkDropListInternal as ɵangular_material_src_cdk_drag_drop_drag_drop_a} from './directives/drop-list';"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -14,5 +14,4 @@
* retention of the class and its directive metadata.
*/
-import * as ɵngcc0 from '@angular/core';
export declare const CDK_DRAG_HANDLE: InjectionToken;
/** Handle that can be used to drag a CdkDrag instance. */
@@ -30,7 +29,3 @@
ngOnDestroy(): void;
static ngAcceptInputType_disabled: BooleanInput;
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration;
- static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration;
}
-
-//# sourceMappingURL=drag-handle.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,31 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { BooleanInput } from '@angular/cdk/coercion';
-import { ElementRef, InjectionToken, OnDestroy } from '@angular/core';
-import { Subject } from 'rxjs';
-/**
- * Injection token that can be used to reference instances of `CdkDragHandle`. It serves as
- * alternative token to the actual `CdkDragHandle` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-export declare const CDK_DRAG_HANDLE: InjectionToken;
-/** Handle that can be used to drag a CdkDrag instance. */
-export declare class CdkDragHandle implements OnDestroy {
- element: ElementRef;
- /** Closest parent draggable instance. */
- _parentDrag: {} | undefined;
- /** Emits when the state of the handle has changed. */
- readonly _stateChanges: Subject;
- /** Whether starting to drag through this handle is disabled. */
- get disabled(): boolean;
- set disabled(value: boolean);
- private _disabled;
- constructor(element: ElementRef, parentDrag?: any);
- ngOnDestroy(): void;
- static ngAcceptInputType_disabled: BooleanInput;
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-handle.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drag-handle.d.ts","sources":["drag-handle.d.ts"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AACA","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { BooleanInput } from '@angular/cdk/coercion';\nimport { ElementRef, InjectionToken, OnDestroy } from '@angular/core';\nimport { Subject } from 'rxjs';\n/**\n * Injection token that can be used to reference instances of `CdkDragHandle`. It serves as\n * alternative token to the actual `CdkDragHandle` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport declare const CDK_DRAG_HANDLE: InjectionToken;\n/** Handle that can be used to drag a CdkDrag instance. */\nexport declare class CdkDragHandle implements OnDestroy {\n element: ElementRef;\n /** Closest parent draggable instance. */\n _parentDrag: {} | undefined;\n /** Emits when the state of the handle has changed. */\n readonly _stateChanges: Subject;\n /** Whether starting to drag through this handle is disabled. */\n get disabled(): boolean;\n set disabled(value: boolean);\n private _disabled;\n constructor(element: ElementRef, parentDrag?: any);\n ngOnDestroy(): void;\n static ngAcceptInputType_disabled: BooleanInput;\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -12,5 +12,4 @@
* retention of the class and its directive metadata.
*/
-import * as ɵngcc0 from '@angular/core';
export declare const CDK_DRAG_PLACEHOLDER: InjectionToken>;
/**
@@ -23,7 +22,3 @@
data: T;
constructor(templateRef: TemplateRef);
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration, never>;
- static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration, "ng-template[cdkDragPlaceholder]", never, { "data": "data"; }, {}, never>;
}
-
-//# sourceMappingURL=drag-placeholder.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,24 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { TemplateRef, InjectionToken } from '@angular/core';
-/**
- * Injection token that can be used to reference instances of `CdkDragPlaceholder`. It serves as
- * alternative token to the actual `CdkDragPlaceholder` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-export declare const CDK_DRAG_PLACEHOLDER: InjectionToken>;
-/**
- * Element that will be used as a template for the placeholder of a CdkDrag when
- * it is being dragged. The placeholder is displayed in place of the element being dragged.
- */
-export declare class CdkDragPlaceholder {
- templateRef: TemplateRef;
- /** Context data to be added to the placeholder template instance. */
- data: T;
- constructor(templateRef: TemplateRef);
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-placeholder.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drag-placeholder.d.ts","sources":["drag-placeholder.d.ts"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AACA","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { TemplateRef, InjectionToken } from '@angular/core';\n/**\n * Injection token that can be used to reference instances of `CdkDragPlaceholder`. It serves as\n * alternative token to the actual `CdkDragPlaceholder` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport declare const CDK_DRAG_PLACEHOLDER: InjectionToken>;\n/**\n * Element that will be used as a template for the placeholder of a CdkDrag when\n * it is being dragged. The placeholder is displayed in place of the element being dragged.\n */\nexport declare class CdkDragPlaceholder {\n templateRef: TemplateRef;\n /** Context data to be added to the placeholder template instance. */\n data: T;\n constructor(templateRef: TemplateRef);\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -13,5 +13,4 @@
* retention of the class and its directive metadata.
*/
-import * as ɵngcc0 from '@angular/core';
export declare const CDK_DRAG_PREVIEW: InjectionToken>;
/**
@@ -29,7 +28,3 @@
constructor(templateRef: TemplateRef);
static ngAcceptInputType_matchSize: BooleanInput;
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration, never>;
- static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration, "ng-template[cdkDragPreview]", never, { "matchSize": "matchSize"; "data": "data"; }, {}, never>;
}
-
-//# sourceMappingURL=drag-preview.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,30 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { BooleanInput } from '@angular/cdk/coercion';
-import { InjectionToken, TemplateRef } from '@angular/core';
-/**
- * Injection token that can be used to reference instances of `CdkDragPreview`. It serves as
- * alternative token to the actual `CdkDragPreview` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-export declare const CDK_DRAG_PREVIEW: InjectionToken>;
-/**
- * Element that will be used as a template for the preview
- * of a CdkDrag when it is being dragged.
- */
-export declare class CdkDragPreview {
- templateRef: TemplateRef;
- /** Context data to be added to the preview template instance. */
- data: T;
- /** Whether the preview should preserve the same size as the item that is being dragged. */
- get matchSize(): boolean;
- set matchSize(value: boolean);
- private _matchSize;
- constructor(templateRef: TemplateRef);
- static ngAcceptInputType_matchSize: BooleanInput;
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag-preview.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drag-preview.d.ts","sources":["drag-preview.d.ts"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AACA","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { BooleanInput } from '@angular/cdk/coercion';\nimport { InjectionToken, TemplateRef } from '@angular/core';\n/**\n * Injection token that can be used to reference instances of `CdkDragPreview`. It serves as\n * alternative token to the actual `CdkDragPreview` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport declare const CDK_DRAG_PREVIEW: InjectionToken>;\n/**\n * Element that will be used as a template for the preview\n * of a CdkDrag when it is being dragged.\n */\nexport declare class CdkDragPreview {\n templateRef: TemplateRef;\n /** Context data to be added to the preview template instance. */\n data: T;\n /** Whether the preview should preserve the same size as the item that is being dragged. */\n get matchSize(): boolean;\n set matchSize(value: boolean);\n private _matchSize;\n constructor(templateRef: TemplateRef);\n static ngAcceptInputType_matchSize: BooleanInput;\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -19,5 +19,4 @@
import { DragDropConfig, DragStartDelay, DragAxis } from './config';
/** Element that can be moved inside a CdkDropList container. */
-import * as ɵngcc0 from '@angular/core';
export declare class CdkDrag implements AfterViewInit, OnChanges, OnDestroy {
/** Element that the draggable is attached to. */
@@ -157,7 +156,3 @@
private _setupHandlesListener;
static ngAcceptInputType_disabled: BooleanInput;
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration, [null, { optional: true; skipSelf: true; }, null, null, null, { optional: true; }, { optional: true; }, null, null, { optional: true; self: true; }, { optional: true; skipSelf: true; }]>;
- static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration, "[cdkDrag]", ["cdkDrag"], { "disabled": "cdkDragDisabled"; "dragStartDelay": "cdkDragStartDelay"; "lockAxis": "cdkDragLockAxis"; "constrainPosition": "cdkDragConstrainPosition"; "previewClass": "cdkDragPreviewClass"; "boundaryElement": "cdkDragBoundary"; "rootElementSelector": "cdkDragRootElement"; "previewContainer": "cdkDragPreviewContainer"; "data": "cdkDragData"; "freeDragPosition": "cdkDragFreeDragPosition"; }, { "started": "cdkDragStarted"; "released": "cdkDragReleased"; "ended": "cdkDragEnded"; "entered": "cdkDragEntered"; "exited": "cdkDragExited"; "dropped": "cdkDragDropped"; "moved": "cdkDragMoved"; }, ["_previewTemplate", "_placeholderTemplate", "_handles"]>;
}
-
-//# sourceMappingURL=drag.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,158 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { Directionality } from '@angular/cdk/bidi';
-import { AfterViewInit, ElementRef, EventEmitter, NgZone, OnDestroy, QueryList, ViewContainerRef, OnChanges, SimpleChanges, ChangeDetectorRef } from '@angular/core';
-import { BooleanInput } from '@angular/cdk/coercion';
-import { Observable } from 'rxjs';
-import { CdkDragDrop, CdkDragEnd, CdkDragEnter, CdkDragExit, CdkDragMove, CdkDragStart, CdkDragRelease } from '../drag-events';
-import { CdkDragHandle } from './drag-handle';
-import { CdkDragPlaceholder } from './drag-placeholder';
-import { CdkDragPreview } from './drag-preview';
-import { DragRef, Point, PreviewContainer } from '../drag-ref';
-import { CdkDropListInternal as CdkDropList } from './drop-list';
-import { DragDrop } from '../drag-drop';
-import { DragDropConfig, DragStartDelay, DragAxis } from './config';
-/** Element that can be moved inside a CdkDropList container. */
-export declare class CdkDrag implements AfterViewInit, OnChanges, OnDestroy {
- /** Element that the draggable is attached to. */
- element: ElementRef;
- /** Droppable container that the draggable is a part of. */
- dropContainer: CdkDropList;
- private _ngZone;
- private _viewContainerRef;
- private _dir;
- private _changeDetectorRef;
- private _selfHandle?;
- private _parentDrag?;
- private readonly _destroyed;
- private static _dragInstances;
- /** Reference to the underlying drag instance. */
- _dragRef: DragRef>;
- /** Elements that can be used to drag the draggable item. */
- _handles: QueryList;
- /** Element that will be used as a template to create the draggable item's preview. */
- _previewTemplate: CdkDragPreview;
- /** Template for placeholder element rendered to show where a draggable would be dropped. */
- _placeholderTemplate: CdkDragPlaceholder;
- /** Arbitrary data to attach to this drag instance. */
- data: T;
- /** Locks the position of the dragged element along the specified axis. */
- lockAxis: DragAxis;
- /**
- * Selector that will be used to determine the root draggable element, starting from
- * the `cdkDrag` element and going up the DOM. Passing an alternate root element is useful
- * when trying to enable dragging on an element that you might not have access to.
- */
- rootElementSelector: string;
- /**
- * Node or selector that will be used to determine the element to which the draggable's
- * position will be constrained. If a string is passed in, it'll be used as a selector that
- * will be matched starting from the element's parent and going up the DOM until a match
- * has been found.
- */
- boundaryElement: string | ElementRef | HTMLElement;
- /**
- * Amount of milliseconds to wait after the user has put their
- * pointer down before starting to drag the element.
- */
- dragStartDelay: DragStartDelay;
- /**
- * Sets the position of a `CdkDrag` that is outside of a drop container.
- * Can be used to restore the element's position for a returning user.
- */
- freeDragPosition: {
- x: number;
- y: number;
- };
- /** Whether starting to drag this element is disabled. */
- get disabled(): boolean;
- set disabled(value: boolean);
- private _disabled;
- /**
- * Function that can be used to customize the logic of how the position of the drag item
- * is limited while it's being dragged. Gets called with a point containing the current position
- * of the user's pointer on the page and should return a point describing where the item should
- * be rendered.
- */
- constrainPosition?: (point: Point, dragRef: DragRef) => Point;
- /** Class to be added to the preview element. */
- previewClass: string | string[];
- /**
- * Configures the place into which the preview of the item will be inserted. Can be configured
- * globally through `CDK_DROP_LIST`. Possible values:
- * - `global` - Preview will be inserted at the bottom of the ``. The advantage is that
- * you don't have to worry about `overflow: hidden` or `z-index`, but the item won't retain
- * its inherited styles.
- * - `parent` - Preview will be inserted into the parent of the drag item. The advantage is that
- * inherited styles will be preserved, but it may be clipped by `overflow: hidden` or not be
- * visible due to `z-index`. Furthermore, the preview is going to have an effect over selectors
- * like `:nth-child` and some flexbox configurations.
- * - `ElementRef | HTMLElement` - Preview will be inserted into a specific element.
- * Same advantages and disadvantages as `parent`.
- */
- previewContainer: PreviewContainer;
- /** Emits when the user starts dragging the item. */
- readonly started: EventEmitter;
- /** Emits when the user has released a drag item, before any animations have started. */
- readonly released: EventEmitter;
- /** Emits when the user stops dragging an item in the container. */
- readonly ended: EventEmitter;
- /** Emits when the user has moved the item into a new container. */
- readonly entered: EventEmitter>;
- /** Emits when the user removes the item its container by dragging it into another container. */
- readonly exited: EventEmitter>;
- /** Emits when the user drops the item inside a container. */
- readonly dropped: EventEmitter>;
- /**
- * Emits as the user is dragging the item. Use with caution,
- * because this event will fire for every pixel that the user has dragged.
- */
- readonly moved: Observable>;
- constructor(
- /** Element that the draggable is attached to. */
- element: ElementRef,
- /** Droppable container that the draggable is a part of. */
- dropContainer: CdkDropList,
- /**
- * @deprecated `_document` parameter no longer being used and will be removed.
- * @breaking-change 12.0.0
- */
- _document: any, _ngZone: NgZone, _viewContainerRef: ViewContainerRef, config: DragDropConfig, _dir: Directionality, dragDrop: DragDrop, _changeDetectorRef: ChangeDetectorRef, _selfHandle?: CdkDragHandle | undefined, _parentDrag?: CdkDrag | undefined);
- /**
- * Returns the element that is being used as a placeholder
- * while the current element is being dragged.
- */
- getPlaceholderElement(): HTMLElement;
- /** Returns the root draggable element. */
- getRootElement(): HTMLElement;
- /** Resets a standalone drag item to its initial position. */
- reset(): void;
- /**
- * Gets the pixel coordinates of the draggable outside of a drop container.
- */
- getFreeDragPosition(): {
- readonly x: number;
- readonly y: number;
- };
- ngAfterViewInit(): void;
- ngOnChanges(changes: SimpleChanges): void;
- ngOnDestroy(): void;
- /** Syncs the root element with the `DragRef`. */
- private _updateRootElement;
- /** Gets the boundary element, based on the `boundaryElement` value. */
- private _getBoundaryElement;
- /** Syncs the inputs of the CdkDrag with the options of the underlying DragRef. */
- private _syncInputs;
- /** Handles the events from the underlying `DragRef`. */
- private _handleEvents;
- /** Assigns the default input values based on a provided config object. */
- private _assignDefaults;
- /** Sets up the listener that syncs the handles with the drag ref. */
- private _setupHandlesListener;
- static ngAcceptInputType_disabled: BooleanInput;
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drag.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drag.d.ts","sources":["drag.d.ts"],"names":[],"mappings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sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Directionality } from '@angular/cdk/bidi';\nimport { AfterViewInit, ElementRef, EventEmitter, NgZone, OnDestroy, QueryList, ViewContainerRef, OnChanges, SimpleChanges, ChangeDetectorRef } from '@angular/core';\nimport { BooleanInput } from '@angular/cdk/coercion';\nimport { Observable } from 'rxjs';\nimport { CdkDragDrop, CdkDragEnd, CdkDragEnter, CdkDragExit, CdkDragMove, CdkDragStart, CdkDragRelease } from '../drag-events';\nimport { CdkDragHandle } from './drag-handle';\nimport { CdkDragPlaceholder } from './drag-placeholder';\nimport { CdkDragPreview } from './drag-preview';\nimport { DragRef, Point, PreviewContainer } from '../drag-ref';\nimport { CdkDropListInternal as CdkDropList } from './drop-list';\nimport { DragDrop } from '../drag-drop';\nimport { DragDropConfig, DragStartDelay, DragAxis } from './config';\n/** Element that can be moved inside a CdkDropList container. */\nexport declare class CdkDrag implements AfterViewInit, OnChanges, OnDestroy {\n /** Element that the draggable is attached to. */\n element: ElementRef;\n /** Droppable container that the draggable is a part of. */\n dropContainer: CdkDropList;\n private _ngZone;\n private _viewContainerRef;\n private _dir;\n private _changeDetectorRef;\n private _selfHandle?;\n private _parentDrag?;\n private readonly _destroyed;\n private static _dragInstances;\n /** Reference to the underlying drag instance. */\n _dragRef: DragRef>;\n /** Elements that can be used to drag the draggable item. */\n _handles: QueryList;\n /** Element that will be used as a template to create the draggable item's preview. */\n _previewTemplate: CdkDragPreview;\n /** Template for placeholder element rendered to show where a draggable would be dropped. */\n _placeholderTemplate: CdkDragPlaceholder;\n /** Arbitrary data to attach to this drag instance. */\n data: T;\n /** Locks the position of the dragged element along the specified axis. */\n lockAxis: DragAxis;\n /**\n * Selector that will be used to determine the root draggable element, starting from\n * the `cdkDrag` element and going up the DOM. Passing an alternate root element is useful\n * when trying to enable dragging on an element that you might not have access to.\n */\n rootElementSelector: string;\n /**\n * Node or selector that will be used to determine the element to which the draggable's\n * position will be constrained. If a string is passed in, it'll be used as a selector that\n * will be matched starting from the element's parent and going up the DOM until a match\n * has been found.\n */\n boundaryElement: string | ElementRef | HTMLElement;\n /**\n * Amount of milliseconds to wait after the user has put their\n * pointer down before starting to drag the element.\n */\n dragStartDelay: DragStartDelay;\n /**\n * Sets the position of a `CdkDrag` that is outside of a drop container.\n * Can be used to restore the element's position for a returning user.\n */\n freeDragPosition: {\n x: number;\n y: number;\n };\n /** Whether starting to drag this element is disabled. */\n get disabled(): boolean;\n set disabled(value: boolean);\n private _disabled;\n /**\n * Function that can be used to customize the logic of how the position of the drag item\n * is limited while it's being dragged. Gets called with a point containing the current position\n * of the user's pointer on the page and should return a point describing where the item should\n * be rendered.\n */\n constrainPosition?: (point: Point, dragRef: DragRef) => Point;\n /** Class to be added to the preview element. */\n previewClass: string | string[];\n /**\n * Configures the place into which the preview of the item will be inserted. Can be configured\n * globally through `CDK_DROP_LIST`. Possible values:\n * - `global` - Preview will be inserted at the bottom of the ``. The advantage is that\n * you don't have to worry about `overflow: hidden` or `z-index`, but the item won't retain\n * its inherited styles.\n * - `parent` - Preview will be inserted into the parent of the drag item. The advantage is that\n * inherited styles will be preserved, but it may be clipped by `overflow: hidden` or not be\n * visible due to `z-index`. Furthermore, the preview is going to have an effect over selectors\n * like `:nth-child` and some flexbox configurations.\n * - `ElementRef | HTMLElement` - Preview will be inserted into a specific element.\n * Same advantages and disadvantages as `parent`.\n */\n previewContainer: PreviewContainer;\n /** Emits when the user starts dragging the item. */\n readonly started: EventEmitter;\n /** Emits when the user has released a drag item, before any animations have started. */\n readonly released: EventEmitter;\n /** Emits when the user stops dragging an item in the container. */\n readonly ended: EventEmitter;\n /** Emits when the user has moved the item into a new container. */\n readonly entered: EventEmitter>;\n /** Emits when the user removes the item its container by dragging it into another container. */\n readonly exited: EventEmitter>;\n /** Emits when the user drops the item inside a container. */\n readonly dropped: EventEmitter>;\n /**\n * Emits as the user is dragging the item. Use with caution,\n * because this event will fire for every pixel that the user has dragged.\n */\n readonly moved: Observable>;\n constructor(\n /** Element that the draggable is attached to. */\n element: ElementRef, \n /** Droppable container that the draggable is a part of. */\n dropContainer: CdkDropList, \n /**\n * @deprecated `_document` parameter no longer being used and will be removed.\n * @breaking-change 12.0.0\n */\n _document: any, _ngZone: NgZone, _viewContainerRef: ViewContainerRef, config: DragDropConfig, _dir: Directionality, dragDrop: DragDrop, _changeDetectorRef: ChangeDetectorRef, _selfHandle?: CdkDragHandle | undefined, _parentDrag?: CdkDrag | undefined);\n /**\n * Returns the element that is being used as a placeholder\n * while the current element is being dragged.\n */\n getPlaceholderElement(): HTMLElement;\n /** Returns the root draggable element. */\n getRootElement(): HTMLElement;\n /** Resets a standalone drag item to its initial position. */\n reset(): void;\n /**\n * Gets the pixel coordinates of the draggable outside of a drop container.\n */\n getFreeDragPosition(): {\n readonly x: number;\n readonly y: number;\n };\n ngAfterViewInit(): void;\n ngOnChanges(changes: SimpleChanges): void;\n ngOnDestroy(): void;\n /** Syncs the root element with the `DragRef`. */\n private _updateRootElement;\n /** Gets the boundary element, based on the `boundaryElement` value. */\n private _getBoundaryElement;\n /** Syncs the inputs of the CdkDrag with the options of the underlying DragRef. */\n private _syncInputs;\n /** Handles the events from the underlying `DragRef`. */\n private _handleEvents;\n /** Assigns the default input values based on a provided config object. */\n private _assignDefaults;\n /** Sets up the listener that syncs the handles with the drag ref. */\n private _setupHandlesListener;\n static ngAcceptInputType_disabled: BooleanInput;\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -13,5 +13,4 @@
* retention of the class and its directive metadata.
*/
-import * as ɵngcc0 from '@angular/core';
export declare const CDK_DROP_LIST_GROUP: InjectionToken>;
/**
@@ -30,7 +29,3 @@
ngOnDestroy(): void;
static ngAcceptInputType_disabled: BooleanInput;
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration, never>;
- static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration, "[cdkDropListGroup]", ["cdkDropListGroup"], { "disabled": "cdkDropListGroupDisabled"; }, {}, never>;
}
-
-//# sourceMappingURL=drop-list-group.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,31 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { OnDestroy, InjectionToken } from '@angular/core';
-import { BooleanInput } from '@angular/cdk/coercion';
-/**
- * Injection token that can be used to reference instances of `CdkDropListGroup`. It serves as
- * alternative token to the actual `CdkDropListGroup` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-export declare const CDK_DROP_LIST_GROUP: InjectionToken>;
-/**
- * Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`
- * elements that are placed inside a `cdkDropListGroup` will be connected to each other
- * automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input
- * from `cdkDropList`.
- */
-export declare class CdkDropListGroup implements OnDestroy {
- /** Drop lists registered inside the group. */
- readonly _items: Set;
- /** Whether starting a dragging sequence from inside this group is disabled. */
- get disabled(): boolean;
- set disabled(value: boolean);
- private _disabled;
- ngOnDestroy(): void;
- static ngAcceptInputType_disabled: BooleanInput;
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list-group.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drop-list-group.d.ts","sources":["drop-list-group.d.ts"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AACA","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { OnDestroy, InjectionToken } from '@angular/core';\nimport { BooleanInput } from '@angular/cdk/coercion';\n/**\n * Injection token that can be used to reference instances of `CdkDropListGroup`. It serves as\n * alternative token to the actual `CdkDropListGroup` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport declare const CDK_DROP_LIST_GROUP: InjectionToken>;\n/**\n * Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`\n * elements that are placed inside a `cdkDropListGroup` will be connected to each other\n * automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input\n * from `cdkDropList`.\n */\nexport declare class CdkDropListGroup implements OnDestroy {\n /** Drop lists registered inside the group. */\n readonly _items: Set;\n /** Whether starting a dragging sequence from inside this group is disabled. */\n get disabled(): boolean;\n set disabled(value: boolean);\n private _disabled;\n ngOnDestroy(): void;\n static ngAcceptInputType_disabled: BooleanInput;\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -21,5 +21,4 @@
* @docs-private
*/
-import * as ɵngcc0 from '@angular/core';
export interface CdkDropListInternal extends CdkDropList {
}
@@ -123,7 +122,3 @@
static ngAcceptInputType_autoScrollDisabled: BooleanInput;
static ngAcceptInputType_autoScrollStep: NumberInput;
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration, [null, null, null, null, { optional: true; }, { optional: true; skipSelf: true; }, { optional: true; }]>;
- static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration, "[cdkDropList], cdk-drop-list", ["cdkDropList"], { "connectedTo": "cdkDropListConnectedTo"; "id": "id"; "enterPredicate": "cdkDropListEnterPredicate"; "sortPredicate": "cdkDropListSortPredicate"; "disabled": "cdkDropListDisabled"; "sortingDisabled": "cdkDropListSortingDisabled"; "autoScrollDisabled": "cdkDropListAutoScrollDisabled"; "orientation": "cdkDropListOrientation"; "lockAxis": "cdkDropListLockAxis"; "data": "cdkDropListData"; "autoScrollStep": "cdkDropListAutoScrollStep"; }, { "dropped": "cdkDropListDropped"; "entered": "cdkDropListEntered"; "exited": "cdkDropListExited"; "sorted": "cdkDropListSorted"; }, never>;
}
-
-//# sourceMappingURL=drop-list.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,124 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { BooleanInput, NumberInput } from '@angular/cdk/coercion';
-import { ElementRef, EventEmitter, OnDestroy, ChangeDetectorRef, InjectionToken } from '@angular/core';
-import { Directionality } from '@angular/cdk/bidi';
-import { ScrollDispatcher } from '@angular/cdk/scrolling';
-import { CdkDrag } from './drag';
-import { CdkDragDrop, CdkDragEnter, CdkDragExit, CdkDragSortEvent } from '../drag-events';
-import { CdkDropListGroup } from './drop-list-group';
-import { DropListRef } from '../drop-list-ref';
-import { DragDrop } from '../drag-drop';
-import { DropListOrientation, DragAxis, DragDropConfig } from './config';
-/**
- * Internal compile-time-only representation of a `CdkDropList`.
- * Used to avoid circular import issues between the `CdkDropList` and the `CdkDrag`.
- * @docs-private
- */
-export interface CdkDropListInternal extends CdkDropList {
-}
-/**
- * Injection token that can be used to reference instances of `CdkDropList`. It serves as
- * alternative token to the actual `CdkDropList` class which could cause unnecessary
- * retention of the class and its directive metadata.
- */
-export declare const CDK_DROP_LIST: InjectionToken>;
-/** Container that wraps a set of draggable items. */
-export declare class CdkDropList implements OnDestroy {
- /** Element that the drop list is attached to. */
- element: ElementRef;
- private _changeDetectorRef;
- private _scrollDispatcher;
- private _dir?;
- private _group?;
- /** Emits when the list has been destroyed. */
- private readonly _destroyed;
- /** Whether the element's scrollable parents have been resolved. */
- private _scrollableParentsResolved;
- /** Keeps track of the drop lists that are currently on the page. */
- private static _dropLists;
- /** Reference to the underlying drop list instance. */
- _dropListRef: DropListRef>;
- /**
- * Other draggable containers that this container is connected to and into which the
- * container's items can be transferred. Can either be references to other drop containers,
- * or their unique IDs.
- */
- connectedTo: (CdkDropList | string)[] | CdkDropList | string;
- /** Arbitrary data to attach to this container. */
- data: T;
- /** Direction in which the list is oriented. */
- orientation: DropListOrientation;
- /**
- * Unique ID for the drop zone. Can be used as a reference
- * in the `connectedTo` of another `CdkDropList`.
- */
- id: string;
- /** Locks the position of the draggable elements inside the container along the specified axis. */
- lockAxis: DragAxis;
- /** Whether starting a dragging sequence from this container is disabled. */
- get disabled(): boolean;
- set disabled(value: boolean);
- private _disabled;
- /** Whether sorting within this drop list is disabled. */
- sortingDisabled: boolean;
- /**
- * Function that is used to determine whether an item
- * is allowed to be moved into a drop container.
- */
- enterPredicate: (drag: CdkDrag, drop: CdkDropList) => boolean;
- /** Functions that is used to determine whether an item can be sorted into a particular index. */
- sortPredicate: (index: number, drag: CdkDrag, drop: CdkDropList) => boolean;
- /** Whether to auto-scroll the view when the user moves their pointer close to the edges. */
- autoScrollDisabled: boolean;
- /** Number of pixels to scroll for each frame when auto-scrolling an element. */
- autoScrollStep: number;
- /** Emits when the user drops an item inside the container. */
- readonly dropped: EventEmitter>;
- /**
- * Emits when the user has moved a new drag item into this container.
- */
- readonly entered: EventEmitter>;
- /**
- * Emits when the user removes an item from the container
- * by dragging it into another container.
- */
- readonly exited: EventEmitter>;
- /** Emits as the user is swapping items while actively dragging. */
- readonly sorted: EventEmitter>;
- /**
- * Keeps track of the items that are registered with this container. Historically we used to
- * do this with a `ContentChildren` query, however queries don't handle transplanted views very
- * well which means that we can't handle cases like dragging the headers of a `mat-table`
- * correctly. What we do instead is to have the items register themselves with the container
- * and then we sort them based on their position in the DOM.
- */
- private _unsortedItems;
- constructor(
- /** Element that the drop list is attached to. */
- element: ElementRef, dragDrop: DragDrop, _changeDetectorRef: ChangeDetectorRef, _scrollDispatcher: ScrollDispatcher, _dir?: Directionality | undefined, _group?: CdkDropListGroup> | undefined, config?: DragDropConfig);
- /** Registers an items with the drop list. */
- addItem(item: CdkDrag): void;
- /** Removes an item from the drop list. */
- removeItem(item: CdkDrag): void;
- /** Gets the registered items in the list, sorted by their position in the DOM. */
- getSortedItems(): CdkDrag[];
- ngOnDestroy(): void;
- /** Syncs the inputs of the CdkDropList with the options of the underlying DropListRef. */
- private _setupInputSyncSubscription;
- /** Handles events from the underlying DropListRef. */
- private _handleEvents;
- /** Assigns the default input values based on a provided config object. */
- private _assignDefaults;
- /** Syncs up the registered drag items with underlying drop list ref. */
- private _syncItemsWithRef;
- static ngAcceptInputType_disabled: BooleanInput;
- static ngAcceptInputType_sortingDisabled: BooleanInput;
- static ngAcceptInputType_autoScrollDisabled: BooleanInput;
- static ngAcceptInputType_autoScrollStep: NumberInput;
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/directives/drop-list.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drop-list.d.ts","sources":["drop-list.d.ts"],"names":[],"mappings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sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { BooleanInput, NumberInput } from '@angular/cdk/coercion';\nimport { ElementRef, EventEmitter, OnDestroy, ChangeDetectorRef, InjectionToken } from '@angular/core';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { ScrollDispatcher } from '@angular/cdk/scrolling';\nimport { CdkDrag } from './drag';\nimport { CdkDragDrop, CdkDragEnter, CdkDragExit, CdkDragSortEvent } from '../drag-events';\nimport { CdkDropListGroup } from './drop-list-group';\nimport { DropListRef } from '../drop-list-ref';\nimport { DragDrop } from '../drag-drop';\nimport { DropListOrientation, DragAxis, DragDropConfig } from './config';\n/**\n * Internal compile-time-only representation of a `CdkDropList`.\n * Used to avoid circular import issues between the `CdkDropList` and the `CdkDrag`.\n * @docs-private\n */\nexport interface CdkDropListInternal extends CdkDropList {\n}\n/**\n * Injection token that can be used to reference instances of `CdkDropList`. It serves as\n * alternative token to the actual `CdkDropList` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nexport declare const CDK_DROP_LIST: InjectionToken>;\n/** Container that wraps a set of draggable items. */\nexport declare class CdkDropList implements OnDestroy {\n /** Element that the drop list is attached to. */\n element: ElementRef;\n private _changeDetectorRef;\n private _scrollDispatcher;\n private _dir?;\n private _group?;\n /** Emits when the list has been destroyed. */\n private readonly _destroyed;\n /** Whether the element's scrollable parents have been resolved. */\n private _scrollableParentsResolved;\n /** Keeps track of the drop lists that are currently on the page. */\n private static _dropLists;\n /** Reference to the underlying drop list instance. */\n _dropListRef: DropListRef>;\n /**\n * Other draggable containers that this container is connected to and into which the\n * container's items can be transferred. Can either be references to other drop containers,\n * or their unique IDs.\n */\n connectedTo: (CdkDropList | string)[] | CdkDropList | string;\n /** Arbitrary data to attach to this container. */\n data: T;\n /** Direction in which the list is oriented. */\n orientation: DropListOrientation;\n /**\n * Unique ID for the drop zone. Can be used as a reference\n * in the `connectedTo` of another `CdkDropList`.\n */\n id: string;\n /** Locks the position of the draggable elements inside the container along the specified axis. */\n lockAxis: DragAxis;\n /** Whether starting a dragging sequence from this container is disabled. */\n get disabled(): boolean;\n set disabled(value: boolean);\n private _disabled;\n /** Whether sorting within this drop list is disabled. */\n sortingDisabled: boolean;\n /**\n * Function that is used to determine whether an item\n * is allowed to be moved into a drop container.\n */\n enterPredicate: (drag: CdkDrag, drop: CdkDropList) => boolean;\n /** Functions that is used to determine whether an item can be sorted into a particular index. */\n sortPredicate: (index: number, drag: CdkDrag, drop: CdkDropList) => boolean;\n /** Whether to auto-scroll the view when the user moves their pointer close to the edges. */\n autoScrollDisabled: boolean;\n /** Number of pixels to scroll for each frame when auto-scrolling an element. */\n autoScrollStep: number;\n /** Emits when the user drops an item inside the container. */\n readonly dropped: EventEmitter>;\n /**\n * Emits when the user has moved a new drag item into this container.\n */\n readonly entered: EventEmitter>;\n /**\n * Emits when the user removes an item from the container\n * by dragging it into another container.\n */\n readonly exited: EventEmitter>;\n /** Emits as the user is swapping items while actively dragging. */\n readonly sorted: EventEmitter>;\n /**\n * Keeps track of the items that are registered with this container. Historically we used to\n * do this with a `ContentChildren` query, however queries don't handle transplanted views very\n * well which means that we can't handle cases like dragging the headers of a `mat-table`\n * correctly. What we do instead is to have the items register themselves with the container\n * and then we sort them based on their position in the DOM.\n */\n private _unsortedItems;\n constructor(\n /** Element that the drop list is attached to. */\n element: ElementRef, dragDrop: DragDrop, _changeDetectorRef: ChangeDetectorRef, _scrollDispatcher: ScrollDispatcher, _dir?: Directionality | undefined, _group?: CdkDropListGroup> | undefined, config?: DragDropConfig);\n /** Registers an items with the drop list. */\n addItem(item: CdkDrag): void;\n /** Removes an item from the drop list. */\n removeItem(item: CdkDrag): void;\n /** Gets the registered items in the list, sorted by their position in the DOM. */\n getSortedItems(): CdkDrag[];\n ngOnDestroy(): void;\n /** Syncs the inputs of the CdkDropList with the options of the underlying DropListRef. */\n private _setupInputSyncSubscription;\n /** Handles events from the underlying DropListRef. */\n private _handleEvents;\n /** Assigns the default input values based on a provided config object. */\n private _assignDefaults;\n /** Syncs up the registered drag items with underlying drop list ref. */\n private _syncItemsWithRef;\n static ngAcceptInputType_disabled: BooleanInput;\n static ngAcceptInputType_sortingDisabled: BooleanInput;\n static ngAcceptInputType_autoScrollDisabled: BooleanInput;\n static ngAcceptInputType_autoScrollStep: NumberInput;\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -6,17 +6,4 @@
* found in the LICENSE file at https://angular.io/license
*/
-import * as ɵngcc0 from '@angular/core';
-import * as ɵngcc1 from './directives/drop-list';
-import * as ɵngcc2 from './directives/drop-list-group';
-import * as ɵngcc3 from './directives/drag';
-import * as ɵngcc4 from './directives/drag-handle';
-import * as ɵngcc5 from './directives/drag-preview';
-import * as ɵngcc6 from './directives/drag-placeholder';
-import * as ɵngcc7 from '@angular/cdk/scrolling';
export declare class DragDropModule {
- static ɵfac: ɵngcc0.ɵɵFactoryDeclaration;
- static ɵmod: ɵngcc0.ɵɵNgModuleDeclaration;
- static ɵinj: ɵngcc0.ɵɵInjectorDeclaration;
}
-
-//# sourceMappingURL=drag-drop-module.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,9 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-export declare class DragDropModule {
-}
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts.map
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-module.d.ts.map (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,1 +1,0 @@
-{"version":3,"file":"drag-drop-module.d.ts","sources":["drag-drop-module.d.ts"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;;;;;;;;;AACA;;;;AACA","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nexport declare class DragDropModule {\n}\n"]}
Index: trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-registry.d.ts
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-registry.d.ts (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-registry.d.ts (revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -13,5 +13,4 @@
* @docs-private
*/
-import * as ɵngcc0 from '@angular/core';
export declare class DragDropRegistry, never>;
}
-
-//# sourceMappingURL=drag-drop-registry.d.ts.map
Index: ip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-registry.d.ts.__ivy_ngcc_bak
===================================================================
--- trip-planner-front/node_modules/@angular/cdk/drag-drop/drag-drop-registry.d.ts.__ivy_ngcc_bak (revision ceaed429447854991cde276cd74df8d5dc9a2009)
+++ (revision )
@@ -1,86 +1,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-import { NgZone, OnDestroy } from '@angular/core';
-import { Observable, Subject } from 'rxjs';
-/**
- * Service that keeps track of all the drag item and drop container
- * instances, and manages global event listeners on the `document`.
- * @docs-private
- */
-export declare class DragDropRegistry implements OnDestroy {
- private _ngZone;
- private _document;
- /** Registered drop container instances. */
- private _dropInstances;
- /** Registered drag item instances. */
- private _dragInstances;
- /** Drag item instances that are currently being dragged. */
- private _activeDragInstances;
- /** Keeps track of the event listeners that we've bound to the `document`. */
- private _globalListeners;
- /**
- * Predicate function to check if an item is being dragged. Moved out into a property,
- * because it'll be called a lot and we don't want to create a new function every time.
- */
- private _draggingPredicate;
- /**
- * Emits the `touchmove` or `mousemove` events that are dispatched
- * while the user is dragging a drag item instance.
- */
- readonly pointerMove: Subject;
- /**
- * Emits the `touchend` or `mouseup` events that are dispatched
- * while the user is dragging a drag item instance.
- */
- readonly pointerUp: Subject