import { CdkAccordionItem, CdkAccordion, CdkAccordionModule } from '@angular/cdk/accordion'; import { TemplatePortal, PortalModule } from '@angular/cdk/portal'; import { DOCUMENT, CommonModule } from '@angular/common'; import { InjectionToken, Directive, TemplateRef, EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, Optional, SkipSelf, Inject, ChangeDetectorRef, ViewContainerRef, Input, Output, ContentChild, ViewChild, Host, ElementRef, Attribute, QueryList, ContentChildren, NgModule } from '@angular/core'; import { mixinTabIndex, MatCommonModule } from '@angular/material/core'; import { coerceBooleanProperty } from '@angular/cdk/coercion'; import { FocusMonitor, FocusKeyManager } from '@angular/cdk/a11y'; import { distinctUntilChanged, startWith, filter, take } from 'rxjs/operators'; import { ENTER, hasModifierKey, SPACE } from '@angular/cdk/keycodes'; import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations'; import { Subject, Subscription, EMPTY, merge } from 'rxjs'; import { trigger, state, style, transition, animate } from '@angular/animations'; import { UniqueSelectionDispatcher } from '@angular/cdk/collections'; /** * @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 */ /** * Token used to provide a `MatAccordion` to `MatExpansionPanel`. * Used primarily to avoid circular imports between `MatAccordion` and `MatExpansionPanel`. */ const MAT_ACCORDION = new InjectionToken('MAT_ACCORDION'); /** * @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 */ /** Time and timing curve for expansion panel animations. */ // Note: Keep this in sync with the Sass variable for the panel header animation. const EXPANSION_PANEL_ANIMATION_TIMING = '225ms cubic-bezier(0.4,0.0,0.2,1)'; /** * Animations used by the Material expansion panel. * * A bug in angular animation's `state` when ViewContainers are moved using ViewContainerRef.move() * causes the animation state of moved components to become `void` upon exit, and not update again * upon reentry into the DOM. This can lead a to situation for the expansion panel where the state * of the panel is `expanded` or `collapsed` but the animation state is `void`. * * To correctly handle animating to the next state, we animate between `void` and `collapsed` which * are defined to have the same styles. Since angular animates from the current styles to the * destination state's style definition, in situations where we are moving from `void`'s styles to * `collapsed` this acts a noop since no style values change. * * In the case where angular's animation state is out of sync with the expansion panel's state, the * expansion panel being `expanded` and angular animations being `void`, the animation from the * `expanded`'s effective styles (though in a `void` animation state) to the collapsed state will * occur as expected. * * Angular Bug: https://github.com/angular/angular/issues/18847 * * @docs-private */ const matExpansionAnimations = { /** Animation that rotates the indicator arrow. */ indicatorRotate: trigger('indicatorRotate', [ state('collapsed, void', style({ transform: 'rotate(0deg)' })), state('expanded', style({ transform: 'rotate(180deg)' })), transition('expanded <=> collapsed, void => collapsed', animate(EXPANSION_PANEL_ANIMATION_TIMING)), ]), /** Animation that expands and collapses the panel content. */ bodyExpansion: trigger('bodyExpansion', [ state('collapsed, void', style({ height: '0px', visibility: 'hidden' })), state('expanded', style({ height: '*', visibility: 'visible' })), transition('expanded <=> collapsed, void => collapsed', animate(EXPANSION_PANEL_ANIMATION_TIMING)), ]) }; /** * @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 */ /** * Expansion panel content that will be rendered lazily * after the panel is opened for the first time. */ class MatExpansionPanelContent { constructor(_template) { this._template = _template; } } MatExpansionPanelContent.decorators = [ { type: Directive, args: [{ selector: 'ng-template[matExpansionPanelContent]' },] } ]; MatExpansionPanelContent.ctorParameters = () => [ { type: TemplateRef } ]; /** * @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 for generating unique element ids. */ let uniqueId = 0; /** * Injection token that can be used to configure the default * options for the expansion panel component. */ const MAT_EXPANSION_PANEL_DEFAULT_OPTIONS = new InjectionToken('MAT_EXPANSION_PANEL_DEFAULT_OPTIONS'); const ɵ0 = undefined; /** * This component can be used as a single element to show expandable content, or as one of * multiple children of an element with the MatAccordion directive attached. */ class MatExpansionPanel extends CdkAccordionItem { constructor(accordion, _changeDetectorRef, _uniqueSelectionDispatcher, _viewContainerRef, _document, _animationMode, defaultOptions) { super(accordion, _changeDetectorRef, _uniqueSelectionDispatcher); this._viewContainerRef = _viewContainerRef; this._animationMode = _animationMode; this._hideToggle = false; /** An event emitted after the body's expansion animation happens. */ this.afterExpand = new EventEmitter(); /** An event emitted after the body's collapse animation happens. */ this.afterCollapse = new EventEmitter(); /** Stream that emits for changes in `@Input` properties. */ this._inputChanges = new Subject(); /** ID for the associated header element. Used for a11y labelling. */ this._headerId = `mat-expansion-panel-header-${uniqueId++}`; /** Stream of body animation done events. */ this._bodyAnimationDone = new Subject(); this.accordion = accordion; this._document = _document; // We need a Subject with distinctUntilChanged, because the `done` event // fires twice on some browsers. See https://github.com/angular/angular/issues/24084 this._bodyAnimationDone.pipe(distinctUntilChanged((x, y) => { return x.fromState === y.fromState && x.toState === y.toState; })).subscribe(event => { if (event.fromState !== 'void') { if (event.toState === 'expanded') { this.afterExpand.emit(); } else if (event.toState === 'collapsed') { this.afterCollapse.emit(); } } }); if (defaultOptions) { this.hideToggle = defaultOptions.hideToggle; } } /** Whether the toggle indicator should be hidden. */ get hideToggle() { return this._hideToggle || (this.accordion && this.accordion.hideToggle); } set hideToggle(value) { this._hideToggle = coerceBooleanProperty(value); } /** The position of the expansion indicator. */ get togglePosition() { return this._togglePosition || (this.accordion && this.accordion.togglePosition); } set togglePosition(value) { this._togglePosition = value; } /** Determines whether the expansion panel should have spacing between it and its siblings. */ _hasSpacing() { if (this.accordion) { return this.expanded && this.accordion.displayMode === 'default'; } return false; } /** Gets the expanded state string. */ _getExpandedState() { return this.expanded ? 'expanded' : 'collapsed'; } /** Toggles the expanded state of the expansion panel. */ toggle() { this.expanded = !this.expanded; } /** Sets the expanded state of the expansion panel to false. */ close() { this.expanded = false; } /** Sets the expanded state of the expansion panel to true. */ open() { this.expanded = true; } ngAfterContentInit() { if (this._lazyContent) { // Render the content as soon as the panel becomes open. this.opened.pipe(startWith(null), filter(() => this.expanded && !this._portal), take(1)).subscribe(() => { this._portal = new TemplatePortal(this._lazyContent._template, this._viewContainerRef); }); } } ngOnChanges(changes) { this._inputChanges.next(changes); } ngOnDestroy() { super.ngOnDestroy(); this._bodyAnimationDone.complete(); this._inputChanges.complete(); } /** Checks whether the expansion panel's content contains the currently-focused element. */ _containsFocus() { if (this._body) { const focusedElement = this._document.activeElement; const bodyElement = this._body.nativeElement; return focusedElement === bodyElement || bodyElement.contains(focusedElement); } return false; } } MatExpansionPanel.decorators = [ { type: Component, args: [{ selector: 'mat-expansion-panel', exportAs: 'matExpansionPanel', template: "\n
\n
\n \n \n
\n \n
\n", encapsulation: ViewEncapsulation.None, changeDetection: ChangeDetectionStrategy.OnPush, inputs: ['disabled', 'expanded'], outputs: ['opened', 'closed', 'expandedChange'], animations: [matExpansionAnimations.bodyExpansion], providers: [ // Provide MatAccordion as undefined to prevent nested expansion panels from registering // to the same accordion. { provide: MAT_ACCORDION, useValue: ɵ0 }, ], host: { 'class': 'mat-expansion-panel', '[class.mat-expanded]': 'expanded', '[class._mat-animation-noopable]': '_animationMode === "NoopAnimations"', '[class.mat-expansion-panel-spacing]': '_hasSpacing()', }, styles: [".mat-expansion-panel{box-sizing:content-box;display:block;margin:0;border-radius:4px;overflow:hidden;transition:margin 225ms cubic-bezier(0.4, 0, 0.2, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);position:relative}.mat-accordion .mat-expansion-panel:not(.mat-expanded),.mat-accordion .mat-expansion-panel:not(.mat-expansion-panel-spacing){border-radius:0}.mat-accordion .mat-expansion-panel:first-of-type{border-top-right-radius:4px;border-top-left-radius:4px}.mat-accordion .mat-expansion-panel:last-of-type{border-bottom-right-radius:4px;border-bottom-left-radius:4px}.cdk-high-contrast-active .mat-expansion-panel{outline:solid 1px}.mat-expansion-panel.ng-animate-disabled,.ng-animate-disabled .mat-expansion-panel,.mat-expansion-panel._mat-animation-noopable{transition:none}.mat-expansion-panel-content{display:flex;flex-direction:column;overflow:visible}.mat-expansion-panel-body{padding:0 24px 16px}.mat-expansion-panel-spacing{margin:16px 0}.mat-accordion>.mat-expansion-panel-spacing:first-child,.mat-accordion>*:first-child:not(.mat-expansion-panel) .mat-expansion-panel-spacing{margin-top:0}.mat-accordion>.mat-expansion-panel-spacing:last-child,.mat-accordion>*:last-child:not(.mat-expansion-panel) .mat-expansion-panel-spacing{margin-bottom:0}.mat-action-row{border-top-style:solid;border-top-width:1px;display:flex;flex-direction:row;justify-content:flex-end;padding:16px 8px 16px 24px}.mat-action-row button.mat-button-base,.mat-action-row button.mat-mdc-button-base{margin-left:8px}[dir=rtl] .mat-action-row button.mat-button-base,[dir=rtl] .mat-action-row button.mat-mdc-button-base{margin-left:0;margin-right:8px}\n"] },] } ]; MatExpansionPanel.ctorParameters = () => [ { type: undefined, decorators: [{ type: Optional }, { type: SkipSelf }, { type: Inject, args: [MAT_ACCORDION,] }] }, { type: ChangeDetectorRef }, { type: UniqueSelectionDispatcher }, { type: ViewContainerRef }, { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }, { type: undefined, decorators: [{ type: Inject, args: [MAT_EXPANSION_PANEL_DEFAULT_OPTIONS,] }, { type: Optional }] } ]; MatExpansionPanel.propDecorators = { hideToggle: [{ type: Input }], togglePosition: [{ type: Input }], afterExpand: [{ type: Output }], afterCollapse: [{ type: Output }], _lazyContent: [{ type: ContentChild, args: [MatExpansionPanelContent,] }], _body: [{ type: ViewChild, args: ['body',] }] }; /** * Actions of a ``. */ class MatExpansionPanelActionRow { } MatExpansionPanelActionRow.decorators = [ { type: Directive, args: [{ selector: 'mat-action-row', host: { class: 'mat-action-row' } },] } ]; /** * @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 */ // Boilerplate for applying mixins to MatExpansionPanelHeader. /** @docs-private */ class MatExpansionPanelHeaderBase { } const _MatExpansionPanelHeaderMixinBase = mixinTabIndex(MatExpansionPanelHeaderBase); /** * Header element of a ``. */ class MatExpansionPanelHeader extends _MatExpansionPanelHeaderMixinBase { constructor(panel, _element, _focusMonitor, _changeDetectorRef, defaultOptions, _animationMode, tabIndex) { super(); this.panel = panel; this._element = _element; this._focusMonitor = _focusMonitor; this._changeDetectorRef = _changeDetectorRef; this._animationMode = _animationMode; this._parentChangeSubscription = Subscription.EMPTY; const accordionHideToggleChange = panel.accordion ? panel.accordion._stateChanges.pipe(filter(changes => !!(changes['hideToggle'] || changes['togglePosition']))) : EMPTY; this.tabIndex = parseInt(tabIndex || '') || 0; // Since the toggle state depends on an @Input on the panel, we // need to subscribe and trigger change detection manually. this._parentChangeSubscription = merge(panel.opened, panel.closed, accordionHideToggleChange, panel._inputChanges.pipe(filter(changes => { return !!(changes['hideToggle'] || changes['disabled'] || changes['togglePosition']); }))) .subscribe(() => this._changeDetectorRef.markForCheck()); // Avoids focus being lost if the panel contained the focused element and was closed. panel.closed .pipe(filter(() => panel._containsFocus())) .subscribe(() => _focusMonitor.focusVia(_element, 'program')); if (defaultOptions) { this.expandedHeight = defaultOptions.expandedHeight; this.collapsedHeight = defaultOptions.collapsedHeight; } } /** * Whether the associated panel is disabled. Implemented as a part of `FocusableOption`. * @docs-private */ get disabled() { return this.panel.disabled; } /** Toggles the expanded state of the panel. */ _toggle() { if (!this.disabled) { this.panel.toggle(); } } /** Gets whether the panel is expanded. */ _isExpanded() { return this.panel.expanded; } /** Gets the expanded state string of the panel. */ _getExpandedState() { return this.panel._getExpandedState(); } /** Gets the panel id. */ _getPanelId() { return this.panel.id; } /** Gets the toggle position for the header. */ _getTogglePosition() { return this.panel.togglePosition; } /** Gets whether the expand indicator should be shown. */ _showToggle() { return !this.panel.hideToggle && !this.panel.disabled; } /** * Gets the current height of the header. Null if no custom height has been * specified, and if the default height from the stylesheet should be used. */ _getHeaderHeight() { const isExpanded = this._isExpanded(); if (isExpanded && this.expandedHeight) { return this.expandedHeight; } else if (!isExpanded && this.collapsedHeight) { return this.collapsedHeight; } return null; } /** Handle keydown event calling to toggle() if appropriate. */ _keydown(event) { switch (event.keyCode) { // Toggle for space and enter keys. case SPACE: case ENTER: if (!hasModifierKey(event)) { event.preventDefault(); this._toggle(); } break; default: if (this.panel.accordion) { this.panel.accordion._handleHeaderKeydown(event); } return; } } /** * Focuses the panel header. Implemented as a part of `FocusableOption`. * @param origin Origin of the action that triggered the focus. * @docs-private */ focus(origin, options) { if (origin) { this._focusMonitor.focusVia(this._element, origin, options); } else { this._element.nativeElement.focus(options); } } ngAfterViewInit() { this._focusMonitor.monitor(this._element).subscribe(origin => { if (origin && this.panel.accordion) { this.panel.accordion._handleHeaderFocus(this); } }); } ngOnDestroy() { this._parentChangeSubscription.unsubscribe(); this._focusMonitor.stopMonitoring(this._element); } } MatExpansionPanelHeader.decorators = [ { type: Component, args: [{ selector: 'mat-expansion-panel-header', template: "\n \n \n \n\n\n", encapsulation: ViewEncapsulation.None, changeDetection: ChangeDetectionStrategy.OnPush, inputs: ['tabIndex'], animations: [ matExpansionAnimations.indicatorRotate, ], host: { 'class': 'mat-expansion-panel-header mat-focus-indicator', 'role': 'button', '[attr.id]': 'panel._headerId', '[attr.tabindex]': 'tabIndex', '[attr.aria-controls]': '_getPanelId()', '[attr.aria-expanded]': '_isExpanded()', '[attr.aria-disabled]': 'panel.disabled', '[class.mat-expanded]': '_isExpanded()', '[class.mat-expansion-toggle-indicator-after]': `_getTogglePosition() === 'after'`, '[class.mat-expansion-toggle-indicator-before]': `_getTogglePosition() === 'before'`, '[class._mat-animation-noopable]': '_animationMode === "NoopAnimations"', '[style.height]': '_getHeaderHeight()', '(click)': '_toggle()', '(keydown)': '_keydown($event)', }, styles: [".mat-expansion-panel-header{display:flex;flex-direction:row;align-items:center;padding:0 24px;border-radius:inherit;transition:height 225ms cubic-bezier(0.4, 0, 0.2, 1)}.mat-expansion-panel-header._mat-animation-noopable{transition:none}.mat-expansion-panel-header:focus,.mat-expansion-panel-header:hover{outline:none}.mat-expansion-panel-header.mat-expanded:focus,.mat-expansion-panel-header.mat-expanded:hover{background:inherit}.mat-expansion-panel-header:not([aria-disabled=true]){cursor:pointer}.mat-expansion-panel-header.mat-expansion-toggle-indicator-before{flex-direction:row-reverse}.mat-expansion-panel-header.mat-expansion-toggle-indicator-before .mat-expansion-indicator{margin:0 16px 0 0}[dir=rtl] .mat-expansion-panel-header.mat-expansion-toggle-indicator-before .mat-expansion-indicator{margin:0 0 0 16px}.mat-content{display:flex;flex:1;flex-direction:row;overflow:hidden}.mat-expansion-panel-header-title,.mat-expansion-panel-header-description{display:flex;flex-grow:1;margin-right:16px}[dir=rtl] .mat-expansion-panel-header-title,[dir=rtl] .mat-expansion-panel-header-description{margin-right:0;margin-left:16px}.mat-expansion-panel-header-description{flex-grow:2}.mat-expansion-indicator::after{border-style:solid;border-width:0 2px 2px 0;content:\"\";display:inline-block;padding:3px;transform:rotate(45deg);vertical-align:middle}.cdk-high-contrast-active .mat-expansion-panel .mat-expansion-panel-header.cdk-keyboard-focused:not([aria-disabled=true])::before,.cdk-high-contrast-active .mat-expansion-panel .mat-expansion-panel-header.cdk-program-focused:not([aria-disabled=true])::before,.cdk-high-contrast-active .mat-expansion-panel:not(.mat-expanded) .mat-expansion-panel-header:hover:not([aria-disabled=true])::before{top:0;left:0;right:0;bottom:0;position:absolute;box-sizing:border-box;pointer-events:none;border:3px solid;border-radius:4px;content:\"\"}.cdk-high-contrast-active .mat-expansion-panel-content{border-top:1px solid;border-top-left-radius:0;border-top-right-radius:0}\n"] },] } ]; MatExpansionPanelHeader.ctorParameters = () => [ { type: MatExpansionPanel, decorators: [{ type: Host }] }, { type: ElementRef }, { type: FocusMonitor }, { type: ChangeDetectorRef }, { type: undefined, decorators: [{ type: Inject, args: [MAT_EXPANSION_PANEL_DEFAULT_OPTIONS,] }, { type: Optional }] }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }, { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] } ]; MatExpansionPanelHeader.propDecorators = { expandedHeight: [{ type: Input }], collapsedHeight: [{ type: Input }] }; /** * Description element of a ``. */ class MatExpansionPanelDescription { } MatExpansionPanelDescription.decorators = [ { type: Directive, args: [{ selector: 'mat-panel-description', host: { class: 'mat-expansion-panel-header-description' } },] } ]; /** * Title element of a ``. */ class MatExpansionPanelTitle { } MatExpansionPanelTitle.decorators = [ { type: Directive, args: [{ selector: 'mat-panel-title', host: { class: 'mat-expansion-panel-header-title' } },] } ]; /** * @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 */ /** * Directive for a Material Design Accordion. */ class MatAccordion extends CdkAccordion { constructor() { super(...arguments); /** Headers belonging to this accordion. */ this._ownHeaders = new QueryList(); this._hideToggle = false; /** * Display mode used for all expansion panels in the accordion. Currently two display * modes exist: * default - a gutter-like spacing is placed around any expanded panel, placing the expanded * panel at a different elevation from the rest of the accordion. * flat - no spacing is placed around expanded panels, showing all panels at the same * elevation. */ this.displayMode = 'default'; /** The position of the expansion indicator. */ this.togglePosition = 'after'; } /** Whether the expansion indicator should be hidden. */ get hideToggle() { return this._hideToggle; } set hideToggle(show) { this._hideToggle = coerceBooleanProperty(show); } ngAfterContentInit() { this._headers.changes .pipe(startWith(this._headers)) .subscribe((headers) => { this._ownHeaders.reset(headers.filter(header => header.panel.accordion === this)); this._ownHeaders.notifyOnChanges(); }); this._keyManager = new FocusKeyManager(this._ownHeaders).withWrap().withHomeAndEnd(); } /** Handles keyboard events coming in from the panel headers. */ _handleHeaderKeydown(event) { this._keyManager.onKeydown(event); } _handleHeaderFocus(header) { this._keyManager.updateActiveItem(header); } ngOnDestroy() { super.ngOnDestroy(); this._ownHeaders.destroy(); } } MatAccordion.decorators = [ { type: Directive, args: [{ selector: 'mat-accordion', exportAs: 'matAccordion', inputs: ['multi'], providers: [{ provide: MAT_ACCORDION, useExisting: MatAccordion }], host: { class: 'mat-accordion', // Class binding which is only used by the test harness as there is no other // way for the harness to detect if multiple panel support is enabled. '[class.mat-accordion-multi]': 'this.multi', } },] } ]; MatAccordion.propDecorators = { _headers: [{ type: ContentChildren, args: [MatExpansionPanelHeader, { descendants: true },] }], hideToggle: [{ type: Input }], displayMode: [{ type: Input }], togglePosition: [{ 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 */ class MatExpansionModule { } MatExpansionModule.decorators = [ { type: NgModule, args: [{ imports: [CommonModule, MatCommonModule, CdkAccordionModule, PortalModule], exports: [ MatAccordion, MatExpansionPanel, MatExpansionPanelActionRow, MatExpansionPanelHeader, MatExpansionPanelTitle, MatExpansionPanelDescription, MatExpansionPanelContent, ], declarations: [ MatAccordion, MatExpansionPanel, MatExpansionPanelActionRow, MatExpansionPanelHeader, MatExpansionPanelTitle, MatExpansionPanelDescription, MatExpansionPanelContent, ], },] } ]; /** * @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 { EXPANSION_PANEL_ANIMATION_TIMING, MAT_ACCORDION, MAT_EXPANSION_PANEL_DEFAULT_OPTIONS, MatAccordion, MatExpansionModule, MatExpansionPanel, MatExpansionPanelActionRow, MatExpansionPanelContent, MatExpansionPanelDescription, MatExpansionPanelHeader, MatExpansionPanelTitle, matExpansionAnimations, ɵ0 }; //# sourceMappingURL=expansion.js.map