import { FocusKeyManager, FocusMonitor, A11yModule } from '@angular/cdk/a11y'; import { ObserversModule } from '@angular/cdk/observers'; import { CdkPortal, TemplatePortal, CdkPortalOutlet, PortalModule } from '@angular/cdk/portal'; import { DOCUMENT, CommonModule } from '@angular/common'; import { InjectionToken, Directive, ElementRef, NgZone, Inject, Optional, TemplateRef, ViewContainerRef, Component, ChangeDetectionStrategy, ViewEncapsulation, ContentChild, ViewChild, Input, ComponentFactoryResolver, forwardRef, EventEmitter, ChangeDetectorRef, Output, QueryList, ContentChildren, Attribute, NgModule } from '@angular/core'; import { mixinDisabled, mixinColor, mixinDisableRipple, mixinTabIndex, MAT_RIPPLE_GLOBAL_OPTIONS, RippleRenderer, MatCommonModule, MatRippleModule } from '@angular/material/core'; import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations'; import { Subject, Subscription, merge, fromEvent, of, timer } from 'rxjs'; import { Directionality } from '@angular/cdk/bidi'; import { trigger, state, style, transition, animate } from '@angular/animations'; import { startWith, distinctUntilChanged, takeUntil } from 'rxjs/operators'; import { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion'; import { ViewportRuler } from '@angular/cdk/scrolling'; import { normalizePassiveListenerOptions, Platform } from '@angular/cdk/platform'; import { hasModifierKey, SPACE, ENTER } from '@angular/cdk/keycodes'; /** * @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 for the MatInkBar's Positioner. */ const _MAT_INK_BAR_POSITIONER = new InjectionToken('MatInkBarPositioner', { providedIn: 'root', factory: _MAT_INK_BAR_POSITIONER_FACTORY }); /** * The default positioner function for the MatInkBar. * @docs-private */ function _MAT_INK_BAR_POSITIONER_FACTORY() { const method = (element) => ({ left: element ? (element.offsetLeft || 0) + 'px' : '0', width: element ? (element.offsetWidth || 0) + 'px' : '0', }); return method; } /** * The ink-bar is used to display and animate the line underneath the current active tab label. * @docs-private */ class MatInkBar { constructor(_elementRef, _ngZone, _inkBarPositioner, _animationMode) { this._elementRef = _elementRef; this._ngZone = _ngZone; this._inkBarPositioner = _inkBarPositioner; this._animationMode = _animationMode; } /** * Calculates the styles from the provided element in order to align the ink-bar to that element. * Shows the ink bar if previously set as hidden. * @param element */ alignToElement(element) { this.show(); if (typeof requestAnimationFrame !== 'undefined') { this._ngZone.runOutsideAngular(() => { requestAnimationFrame(() => this._setStyles(element)); }); } else { this._setStyles(element); } } /** Shows the ink bar. */ show() { this._elementRef.nativeElement.style.visibility = 'visible'; } /** Hides the ink bar. */ hide() { this._elementRef.nativeElement.style.visibility = 'hidden'; } /** * Sets the proper styles to the ink bar element. * @param element */ _setStyles(element) { const positions = this._inkBarPositioner(element); const inkBar = this._elementRef.nativeElement; inkBar.style.left = positions.left; inkBar.style.width = positions.width; } } MatInkBar.decorators = [ { type: Directive, args: [{ selector: 'mat-ink-bar', host: { 'class': 'mat-ink-bar', '[class._mat-animation-noopable]': `_animationMode === 'NoopAnimations'`, }, },] } ]; MatInkBar.ctorParameters = () => [ { type: ElementRef }, { type: NgZone }, { type: undefined, decorators: [{ type: Inject, args: [_MAT_INK_BAR_POSITIONER,] }] }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; /** * @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 `MatTabContent`. It serves as * alternative token to the actual `MatTabContent` class which could cause unnecessary * retention of the class and its directive metadata. */ const MAT_TAB_CONTENT = new InjectionToken('MatTabContent'); /** Decorates the `ng-template` tags and reads out the template from it. */ class MatTabContent { constructor( /** Content for the tab. */ template) { this.template = template; } } MatTabContent.decorators = [ { type: Directive, args: [{ selector: '[matTabContent]', providers: [{ provide: MAT_TAB_CONTENT, useExisting: MatTabContent }], },] } ]; MatTabContent.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 */ /** * Injection token that can be used to reference instances of `MatTabLabel`. It serves as * alternative token to the actual `MatTabLabel` class which could cause unnecessary * retention of the class and its directive metadata. */ const MAT_TAB_LABEL = new InjectionToken('MatTabLabel'); /** * Used to provide a tab label to a tab without causing a circular dependency. * @docs-private */ const MAT_TAB = new InjectionToken('MAT_TAB'); /** Used to flag tab labels for use with the portal directive */ class MatTabLabel extends CdkPortal { constructor(templateRef, viewContainerRef, _closestTab) { super(templateRef, viewContainerRef); this._closestTab = _closestTab; } } MatTabLabel.decorators = [ { type: Directive, args: [{ selector: '[mat-tab-label], [matTabLabel]', providers: [{ provide: MAT_TAB_LABEL, useExisting: MatTabLabel }], },] } ]; MatTabLabel.ctorParameters = () => [ { type: TemplateRef }, { type: ViewContainerRef }, { type: undefined, decorators: [{ type: Inject, args: [MAT_TAB,] }, { type: Optional }] } ]; /** * @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 MatTab. /** @docs-private */ const _MatTabBase = mixinDisabled(class { }); /** * Used to provide a tab group to a tab without causing a circular dependency. * @docs-private */ const MAT_TAB_GROUP = new InjectionToken('MAT_TAB_GROUP'); class MatTab extends _MatTabBase { constructor(_viewContainerRef, _closestTabGroup) { super(); this._viewContainerRef = _viewContainerRef; this._closestTabGroup = _closestTabGroup; /** Plain text label for the tab, used when there is no template label. */ this.textLabel = ''; /** Portal that will be the hosted content of the tab */ this._contentPortal = null; /** Emits whenever the internal state of the tab changes. */ this._stateChanges = new Subject(); /** * The relatively indexed position where 0 represents the center, negative is left, and positive * represents the right. */ this.position = null; /** * The initial relatively index origin of the tab if it was created and selected after there * was already a selected tab. Provides context of what position the tab should originate from. */ this.origin = null; /** * Whether the tab is currently active. */ this.isActive = false; } /** Content for the tab label given by ``. */ get templateLabel() { return this._templateLabel; } set templateLabel(value) { this._setTemplateLabelInput(value); } /** @docs-private */ get content() { return this._contentPortal; } ngOnChanges(changes) { if (changes.hasOwnProperty('textLabel') || changes.hasOwnProperty('disabled')) { this._stateChanges.next(); } } ngOnDestroy() { this._stateChanges.complete(); } ngOnInit() { this._contentPortal = new TemplatePortal(this._explicitContent || this._implicitContent, this._viewContainerRef); } /** * This has been extracted to a util because of TS 4 and VE. * View Engine doesn't support property rename inheritance. * TS 4.0 doesn't allow properties to override accessors or vice-versa. * @docs-private */ _setTemplateLabelInput(value) { // Only update the label if the query managed to find one. This works around an issue where a // user may have manually set `templateLabel` during creation mode, which would then get // clobbered by `undefined` when the query resolves. Also note that we check that the closest // tab matches the current one so that we don't pick up labels from nested tabs. if (value && value._closestTab === this) { this._templateLabel = value; } } } MatTab.decorators = [ { type: Component, args: [{ selector: 'mat-tab', template: "\n\n", inputs: ['disabled'], // tslint:disable-next-line:validate-decorators changeDetection: ChangeDetectionStrategy.Default, encapsulation: ViewEncapsulation.None, exportAs: 'matTab', providers: [{ provide: MAT_TAB, useExisting: MatTab }] },] } ]; MatTab.ctorParameters = () => [ { type: ViewContainerRef }, { type: undefined, decorators: [{ type: Inject, args: [MAT_TAB_GROUP,] }, { type: Optional }] } ]; MatTab.propDecorators = { templateLabel: [{ type: ContentChild, args: [MAT_TAB_LABEL,] }], _explicitContent: [{ type: ContentChild, args: [MAT_TAB_CONTENT, { read: TemplateRef, static: true },] }], _implicitContent: [{ type: ViewChild, args: [TemplateRef, { static: true },] }], textLabel: [{ type: Input, args: ['label',] }], ariaLabel: [{ type: Input, args: ['aria-label',] }], ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }] }; /** * @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 */ /** * Animations used by the Material tabs. * @docs-private */ const matTabsAnimations = { /** Animation translates a tab along the X axis. */ translateTab: trigger('translateTab', [ // Note: transitions to `none` instead of 0, because some browsers might blur the content. state('center, void, left-origin-center, right-origin-center', style({ transform: 'none' })), // If the tab is either on the left or right, we additionally add a `min-height` of 1px // in order to ensure that the element has a height before its state changes. This is // necessary because Chrome does seem to skip the transition in RTL mode if the element does // not have a static height and is not rendered. See related issue: #9465 state('left', style({ transform: 'translate3d(-100%, 0, 0)', minHeight: '1px' })), state('right', style({ transform: 'translate3d(100%, 0, 0)', minHeight: '1px' })), transition('* => left, * => right, left => center, right => center', animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')), transition('void => left-origin-center', [ style({ transform: 'translate3d(-100%, 0, 0)' }), animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)') ]), transition('void => right-origin-center', [ style({ transform: 'translate3d(100%, 0, 0)' }), animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)') ]) ]) }; /** * @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 */ /** * The portal host directive for the contents of the tab. * @docs-private */ class MatTabBodyPortal extends CdkPortalOutlet { constructor(componentFactoryResolver, viewContainerRef, _host, _document) { super(componentFactoryResolver, viewContainerRef, _document); this._host = _host; /** Subscription to events for when the tab body begins centering. */ this._centeringSub = Subscription.EMPTY; /** Subscription to events for when the tab body finishes leaving from center position. */ this._leavingSub = Subscription.EMPTY; } /** Set initial visibility or set up subscription for changing visibility. */ ngOnInit() { super.ngOnInit(); this._centeringSub = this._host._beforeCentering .pipe(startWith(this._host._isCenterPosition(this._host._position))) .subscribe((isCentering) => { if (isCentering && !this.hasAttached()) { this.attach(this._host._content); } }); this._leavingSub = this._host._afterLeavingCenter.subscribe(() => { this.detach(); }); } /** Clean up centering subscription. */ ngOnDestroy() { super.ngOnDestroy(); this._centeringSub.unsubscribe(); this._leavingSub.unsubscribe(); } } MatTabBodyPortal.decorators = [ { type: Directive, args: [{ selector: '[matTabBodyHost]' },] } ]; MatTabBodyPortal.ctorParameters = () => [ { type: ComponentFactoryResolver }, { type: ViewContainerRef }, { type: MatTabBody, decorators: [{ type: Inject, args: [forwardRef(() => MatTabBody),] }] }, { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] } ]; /** * Base class with all of the `MatTabBody` functionality. * @docs-private */ class _MatTabBodyBase { constructor(_elementRef, _dir, changeDetectorRef) { this._elementRef = _elementRef; this._dir = _dir; /** Subscription to the directionality change observable. */ this._dirChangeSubscription = Subscription.EMPTY; /** Emits when an animation on the tab is complete. */ this._translateTabComplete = new Subject(); /** Event emitted when the tab begins to animate towards the center as the active tab. */ this._onCentering = new EventEmitter(); /** Event emitted before the centering of the tab begins. */ this._beforeCentering = new EventEmitter(); /** Event emitted before the centering of the tab begins. */ this._afterLeavingCenter = new EventEmitter(); /** Event emitted when the tab completes its animation towards the center. */ this._onCentered = new EventEmitter(true); // Note that the default value will always be overwritten by `MatTabBody`, but we need one // anyway to prevent the animations module from throwing an error if the body is used on its own. /** Duration for the tab's animation. */ this.animationDuration = '500ms'; if (_dir) { this._dirChangeSubscription = _dir.change.subscribe((dir) => { this._computePositionAnimationState(dir); changeDetectorRef.markForCheck(); }); } // Ensure that we get unique animation events, because the `.done` callback can get // invoked twice in some browsers. See https://github.com/angular/angular/issues/24084. this._translateTabComplete.pipe(distinctUntilChanged((x, y) => { return x.fromState === y.fromState && x.toState === y.toState; })).subscribe(event => { // If the transition to the center is complete, emit an event. if (this._isCenterPosition(event.toState) && this._isCenterPosition(this._position)) { this._onCentered.emit(); } if (this._isCenterPosition(event.fromState) && !this._isCenterPosition(this._position)) { this._afterLeavingCenter.emit(); } }); } /** The shifted index position of the tab body, where zero represents the active center tab. */ set position(position) { this._positionIndex = position; this._computePositionAnimationState(); } /** * After initialized, check if the content is centered and has an origin. If so, set the * special position states that transition the tab from the left or right before centering. */ ngOnInit() { if (this._position == 'center' && this.origin != null) { this._position = this._computePositionFromOrigin(this.origin); } } ngOnDestroy() { this._dirChangeSubscription.unsubscribe(); this._translateTabComplete.complete(); } _onTranslateTabStarted(event) { const isCentering = this._isCenterPosition(event.toState); this._beforeCentering.emit(isCentering); if (isCentering) { this._onCentering.emit(this._elementRef.nativeElement.clientHeight); } } /** The text direction of the containing app. */ _getLayoutDirection() { return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr'; } /** Whether the provided position state is considered center, regardless of origin. */ _isCenterPosition(position) { return position == 'center' || position == 'left-origin-center' || position == 'right-origin-center'; } /** Computes the position state that will be used for the tab-body animation trigger. */ _computePositionAnimationState(dir = this._getLayoutDirection()) { if (this._positionIndex < 0) { this._position = dir == 'ltr' ? 'left' : 'right'; } else if (this._positionIndex > 0) { this._position = dir == 'ltr' ? 'right' : 'left'; } else { this._position = 'center'; } } /** * Computes the position state based on the specified origin position. This is used if the * tab is becoming visible immediately after creation. */ _computePositionFromOrigin(origin) { const dir = this._getLayoutDirection(); if ((dir == 'ltr' && origin <= 0) || (dir == 'rtl' && origin > 0)) { return 'left-origin-center'; } return 'right-origin-center'; } } _MatTabBodyBase.decorators = [ { type: Directive } ]; _MatTabBodyBase.ctorParameters = () => [ { type: ElementRef }, { type: Directionality, decorators: [{ type: Optional }] }, { type: ChangeDetectorRef } ]; _MatTabBodyBase.propDecorators = { _onCentering: [{ type: Output }], _beforeCentering: [{ type: Output }], _afterLeavingCenter: [{ type: Output }], _onCentered: [{ type: Output }], _content: [{ type: Input, args: ['content',] }], origin: [{ type: Input }], animationDuration: [{ type: Input }], position: [{ type: Input }] }; /** * Wrapper for the contents of a tab. * @docs-private */ class MatTabBody extends _MatTabBodyBase { constructor(elementRef, dir, changeDetectorRef) { super(elementRef, dir, changeDetectorRef); } } MatTabBody.decorators = [ { type: Component, args: [{ selector: 'mat-tab-body', template: "
\n \n
\n", encapsulation: ViewEncapsulation.None, // tslint:disable-next-line:validate-decorators changeDetection: ChangeDetectionStrategy.Default, animations: [matTabsAnimations.translateTab], host: { 'class': 'mat-tab-body', }, styles: [".mat-tab-body-content{height:100%;overflow:auto}.mat-tab-group-dynamic-height .mat-tab-body-content{overflow:hidden}\n"] },] } ]; MatTabBody.ctorParameters = () => [ { type: ElementRef }, { type: Directionality, decorators: [{ type: Optional }] }, { type: ChangeDetectorRef } ]; MatTabBody.propDecorators = { _portalHost: [{ type: ViewChild, args: [CdkPortalOutlet,] }] }; /** * @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 provide the default options the tabs module. */ const MAT_TABS_CONFIG = new InjectionToken('MAT_TABS_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 */ /** Used to generate unique ID's for each tab component */ let nextId = 0; /** A simple change event emitted on focus or selection changes. */ class MatTabChangeEvent { } // Boilerplate for applying mixins to MatTabGroup. /** @docs-private */ const _MatTabGroupMixinBase = mixinColor(mixinDisableRipple(class { constructor(_elementRef) { this._elementRef = _elementRef; } }), 'primary'); /** * Base class with all of the `MatTabGroupBase` functionality. * @docs-private */ class _MatTabGroupBase extends _MatTabGroupMixinBase { constructor(elementRef, _changeDetectorRef, defaultConfig, _animationMode) { var _a; super(elementRef); this._changeDetectorRef = _changeDetectorRef; this._animationMode = _animationMode; /** All of the tabs that belong to the group. */ this._tabs = new QueryList(); /** The tab index that should be selected after the content has been checked. */ this._indexToSelect = 0; /** Snapshot of the height of the tab body wrapper before another tab is activated. */ this._tabBodyWrapperHeight = 0; /** Subscription to tabs being added/removed. */ this._tabsSubscription = Subscription.EMPTY; /** Subscription to changes in the tab labels. */ this._tabLabelSubscription = Subscription.EMPTY; this._selectedIndex = null; /** Position of the tab header. */ this.headerPosition = 'above'; /** Output to enable support for two-way binding on `[(selectedIndex)]` */ this.selectedIndexChange = new EventEmitter(); /** Event emitted when focus has changed within a tab group. */ this.focusChange = new EventEmitter(); /** Event emitted when the body animation has completed */ this.animationDone = new EventEmitter(); /** Event emitted when the tab selection has changed. */ this.selectedTabChange = new EventEmitter(true); this._groupId = nextId++; this.animationDuration = defaultConfig && defaultConfig.animationDuration ? defaultConfig.animationDuration : '500ms'; this.disablePagination = defaultConfig && defaultConfig.disablePagination != null ? defaultConfig.disablePagination : false; this.dynamicHeight = defaultConfig && defaultConfig.dynamicHeight != null ? defaultConfig.dynamicHeight : false; this.contentTabIndex = (_a = defaultConfig === null || defaultConfig === void 0 ? void 0 : defaultConfig.contentTabIndex) !== null && _a !== void 0 ? _a : null; } /** Whether the tab group should grow to the size of the active tab. */ get dynamicHeight() { return this._dynamicHeight; } set dynamicHeight(value) { this._dynamicHeight = coerceBooleanProperty(value); } /** The index of the active tab. */ get selectedIndex() { return this._selectedIndex; } set selectedIndex(value) { this._indexToSelect = coerceNumberProperty(value, null); } /** Duration for the tab animation. Will be normalized to milliseconds if no units are set. */ get animationDuration() { return this._animationDuration; } set animationDuration(value) { this._animationDuration = /^\d+$/.test(value) ? value + 'ms' : value; } /** * `tabindex` to be set on the inner element that wraps the tab content. Can be used for improved * accessibility when the tab does not have focusable elements or if it has scrollable content. * The `tabindex` will be removed automatically for inactive tabs. * Read more at https://www.w3.org/TR/wai-aria-practices/examples/tabs/tabs-2/tabs.html */ get contentTabIndex() { return this._contentTabIndex; } set contentTabIndex(value) { this._contentTabIndex = coerceNumberProperty(value, null); } /** Background color of the tab group. */ get backgroundColor() { return this._backgroundColor; } set backgroundColor(value) { const nativeElement = this._elementRef.nativeElement; nativeElement.classList.remove(`mat-background-${this.backgroundColor}`); if (value) { nativeElement.classList.add(`mat-background-${value}`); } this._backgroundColor = value; } /** * After the content is checked, this component knows what tabs have been defined * and what the selected index should be. This is where we can know exactly what position * each tab should be in according to the new selected index, and additionally we know how * a new selected tab should transition in (from the left or right). */ ngAfterContentChecked() { // Don't clamp the `indexToSelect` immediately in the setter because it can happen that // the amount of tabs changes before the actual change detection runs. const indexToSelect = this._indexToSelect = this._clampTabIndex(this._indexToSelect); // If there is a change in selected index, emit a change event. Should not trigger if // the selected index has not yet been initialized. if (this._selectedIndex != indexToSelect) { const isFirstRun = this._selectedIndex == null; if (!isFirstRun) { this.selectedTabChange.emit(this._createChangeEvent(indexToSelect)); // Preserve the height so page doesn't scroll up during tab change. // Fixes https://stackblitz.com/edit/mat-tabs-scroll-page-top-on-tab-change const wrapper = this._tabBodyWrapper.nativeElement; wrapper.style.minHeight = wrapper.clientHeight + 'px'; } // Changing these values after change detection has run // since the checked content may contain references to them. Promise.resolve().then(() => { this._tabs.forEach((tab, index) => tab.isActive = index === indexToSelect); if (!isFirstRun) { this.selectedIndexChange.emit(indexToSelect); // Clear the min-height, this was needed during tab change to avoid // unnecessary scrolling. this._tabBodyWrapper.nativeElement.style.minHeight = ''; } }); } // Setup the position for each tab and optionally setup an origin on the next selected tab. this._tabs.forEach((tab, index) => { tab.position = index - indexToSelect; // If there is already a selected tab, then set up an origin for the next selected tab // if it doesn't have one already. if (this._selectedIndex != null && tab.position == 0 && !tab.origin) { tab.origin = indexToSelect - this._selectedIndex; } }); if (this._selectedIndex !== indexToSelect) { this._selectedIndex = indexToSelect; this._changeDetectorRef.markForCheck(); } } ngAfterContentInit() { this._subscribeToAllTabChanges(); this._subscribeToTabLabels(); // Subscribe to changes in the amount of tabs, in order to be // able to re-render the content as new tabs are added or removed. this._tabsSubscription = this._tabs.changes.subscribe(() => { const indexToSelect = this._clampTabIndex(this._indexToSelect); // Maintain the previously-selected tab if a new tab is added or removed and there is no // explicit change that selects a different tab. if (indexToSelect === this._selectedIndex) { const tabs = this._tabs.toArray(); for (let i = 0; i < tabs.length; i++) { if (tabs[i].isActive) { // Assign both to the `_indexToSelect` and `_selectedIndex` so we don't fire a changed // event, otherwise the consumer may end up in an infinite loop in some edge cases like // adding a tab within the `selectedIndexChange` event. this._indexToSelect = this._selectedIndex = i; break; } } } this._changeDetectorRef.markForCheck(); }); } /** Listens to changes in all of the tabs. */ _subscribeToAllTabChanges() { // Since we use a query with `descendants: true` to pick up the tabs, we may end up catching // some that are inside of nested tab groups. We filter them out manually by checking that // the closest group to the tab is the current one. this._allTabs.changes .pipe(startWith(this._allTabs)) .subscribe((tabs) => { this._tabs.reset(tabs.filter(tab => { return tab._closestTabGroup === this || !tab._closestTabGroup; })); this._tabs.notifyOnChanges(); }); } ngOnDestroy() { this._tabs.destroy(); this._tabsSubscription.unsubscribe(); this._tabLabelSubscription.unsubscribe(); } /** Re-aligns the ink bar to the selected tab element. */ realignInkBar() { if (this._tabHeader) { this._tabHeader._alignInkBarToSelectedTab(); } } /** * Sets focus to a particular tab. * @param index Index of the tab to be focused. */ focusTab(index) { const header = this._tabHeader; if (header) { header.focusIndex = index; } } _focusChanged(index) { this.focusChange.emit(this._createChangeEvent(index)); } _createChangeEvent(index) { const event = new MatTabChangeEvent; event.index = index; if (this._tabs && this._tabs.length) { event.tab = this._tabs.toArray()[index]; } return event; } /** * Subscribes to changes in the tab labels. This is needed, because the @Input for the label is * on the MatTab component, whereas the data binding is inside the MatTabGroup. In order for the * binding to be updated, we need to subscribe to changes in it and trigger change detection * manually. */ _subscribeToTabLabels() { if (this._tabLabelSubscription) { this._tabLabelSubscription.unsubscribe(); } this._tabLabelSubscription = merge(...this._tabs.map(tab => tab._stateChanges)) .subscribe(() => this._changeDetectorRef.markForCheck()); } /** Clamps the given index to the bounds of 0 and the tabs length. */ _clampTabIndex(index) { // Note the `|| 0`, which ensures that values like NaN can't get through // and which would otherwise throw the component into an infinite loop // (since Math.max(NaN, 0) === NaN). return Math.min(this._tabs.length - 1, Math.max(index || 0, 0)); } /** Returns a unique id for each tab label element */ _getTabLabelId(i) { return `mat-tab-label-${this._groupId}-${i}`; } /** Returns a unique id for each tab content element */ _getTabContentId(i) { return `mat-tab-content-${this._groupId}-${i}`; } /** * Sets the height of the body wrapper to the height of the activating tab if dynamic * height property is true. */ _setTabBodyWrapperHeight(tabHeight) { if (!this._dynamicHeight || !this._tabBodyWrapperHeight) { return; } const wrapper = this._tabBodyWrapper.nativeElement; wrapper.style.height = this._tabBodyWrapperHeight + 'px'; // This conditional forces the browser to paint the height so that // the animation to the new height can have an origin. if (this._tabBodyWrapper.nativeElement.offsetHeight) { wrapper.style.height = tabHeight + 'px'; } } /** Removes the height of the tab body wrapper. */ _removeTabBodyWrapperHeight() { const wrapper = this._tabBodyWrapper.nativeElement; this._tabBodyWrapperHeight = wrapper.clientHeight; wrapper.style.height = ''; this.animationDone.emit(); } /** Handle click events, setting new selected index if appropriate. */ _handleClick(tab, tabHeader, index) { if (!tab.disabled) { this.selectedIndex = tabHeader.focusIndex = index; } } /** Retrieves the tabindex for the tab. */ _getTabIndex(tab, idx) { if (tab.disabled) { return null; } return this.selectedIndex === idx ? 0 : -1; } /** Callback for when the focused state of a tab has changed. */ _tabFocusChanged(focusOrigin, index) { // Mouse/touch focus happens during the `mousedown`/`touchstart` phase which // can cause the tab to be moved out from under the pointer, interrupting the // click sequence (see #21898). We don't need to scroll the tab into view for // such cases anyway, because it will be done when the tab becomes selected. if (focusOrigin && focusOrigin !== 'mouse' && focusOrigin !== 'touch') { this._tabHeader.focusIndex = index; } } } _MatTabGroupBase.decorators = [ { type: Directive } ]; _MatTabGroupBase.ctorParameters = () => [ { type: ElementRef }, { type: ChangeDetectorRef }, { type: undefined, decorators: [{ type: Inject, args: [MAT_TABS_CONFIG,] }, { type: Optional }] }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; _MatTabGroupBase.propDecorators = { dynamicHeight: [{ type: Input }], selectedIndex: [{ type: Input }], headerPosition: [{ type: Input }], animationDuration: [{ type: Input }], contentTabIndex: [{ type: Input }], disablePagination: [{ type: Input }], backgroundColor: [{ type: Input }], selectedIndexChange: [{ type: Output }], focusChange: [{ type: Output }], animationDone: [{ type: Output }], selectedTabChange: [{ type: Output }] }; /** * Material design tab-group component. Supports basic tab pairs (label + content) and includes * animated ink-bar, keyboard navigation, and screen reader. * See: https://material.io/design/components/tabs.html */ class MatTabGroup extends _MatTabGroupBase { constructor(elementRef, changeDetectorRef, defaultConfig, animationMode) { super(elementRef, changeDetectorRef, defaultConfig, animationMode); } } MatTabGroup.decorators = [ { type: Component, args: [{ selector: 'mat-tab-group', exportAs: 'matTabGroup', template: "\n
\n\n\n
\n \n \n \n \n\n \n {{tab.textLabel}}\n
\n
\n\n\n\n \n \n\n", encapsulation: ViewEncapsulation.None, // tslint:disable-next-line:validate-decorators changeDetection: ChangeDetectionStrategy.Default, inputs: ['color', 'disableRipple'], providers: [{ provide: MAT_TAB_GROUP, useExisting: MatTabGroup }], host: { 'class': 'mat-tab-group', '[class.mat-tab-group-dynamic-height]': 'dynamicHeight', '[class.mat-tab-group-inverted-header]': 'headerPosition === "below"', }, styles: [".mat-tab-group{display:flex;flex-direction:column;max-width:100%}.mat-tab-group.mat-tab-group-inverted-header{flex-direction:column-reverse}.mat-tab-label{height:48px;padding:0 24px;cursor:pointer;box-sizing:border-box;opacity:.6;min-width:160px;text-align:center;display:inline-flex;justify-content:center;align-items:center;white-space:nowrap;position:relative}.mat-tab-label:focus{outline:none}.mat-tab-label:focus:not(.mat-tab-disabled){opacity:1}.cdk-high-contrast-active .mat-tab-label:focus{outline:dotted 2px;outline-offset:-2px}.mat-tab-label.mat-tab-disabled{cursor:default}.cdk-high-contrast-active .mat-tab-label.mat-tab-disabled{opacity:.5}.mat-tab-label .mat-tab-label-content{display:inline-flex;justify-content:center;align-items:center;white-space:nowrap}.cdk-high-contrast-active .mat-tab-label{opacity:1}@media(max-width: 599px){.mat-tab-label{padding:0 12px}}@media(max-width: 959px){.mat-tab-label{padding:0 12px}}.mat-tab-group[mat-stretch-tabs]>.mat-tab-header .mat-tab-label{flex-basis:0;flex-grow:1}.mat-tab-body-wrapper{position:relative;overflow:hidden;display:flex;transition:height 500ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable.mat-tab-body-wrapper{transition:none;animation:none}.mat-tab-body{top:0;left:0;right:0;bottom:0;position:absolute;display:block;overflow:hidden;outline:0;flex-basis:100%}.mat-tab-body.mat-tab-body-active{position:relative;overflow-x:hidden;overflow-y:auto;z-index:1;flex-grow:1}.mat-tab-group.mat-tab-group-dynamic-height .mat-tab-body.mat-tab-body-active{overflow-y:hidden}\n"] },] } ]; MatTabGroup.ctorParameters = () => [ { type: ElementRef }, { type: ChangeDetectorRef }, { type: undefined, decorators: [{ type: Inject, args: [MAT_TABS_CONFIG,] }, { type: Optional }] }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; MatTabGroup.propDecorators = { _allTabs: [{ type: ContentChildren, args: [MatTab, { descendants: true },] }], _tabBodyWrapper: [{ type: ViewChild, args: ['tabBodyWrapper',] }], _tabHeader: [{ type: ViewChild, args: ['tabHeader',] }] }; /** * @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 MatTabLabelWrapper. /** @docs-private */ const _MatTabLabelWrapperBase = mixinDisabled(class { }); /** * Used in the `mat-tab-group` view to display tab labels. * @docs-private */ class MatTabLabelWrapper extends _MatTabLabelWrapperBase { constructor(elementRef) { super(); this.elementRef = elementRef; } /** Sets focus on the wrapper element */ focus() { this.elementRef.nativeElement.focus(); } getOffsetLeft() { return this.elementRef.nativeElement.offsetLeft; } getOffsetWidth() { return this.elementRef.nativeElement.offsetWidth; } } MatTabLabelWrapper.decorators = [ { type: Directive, args: [{ selector: '[matTabLabelWrapper]', inputs: ['disabled'], host: { '[class.mat-tab-disabled]': 'disabled', '[attr.aria-disabled]': '!!disabled', } },] } ]; MatTabLabelWrapper.ctorParameters = () => [ { type: ElementRef } ]; /** * @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 */ /** Config used to bind passive event listeners */ const passiveEventListenerOptions = normalizePassiveListenerOptions({ passive: true }); /** * The distance in pixels that will be overshot when scrolling a tab label into view. This helps * provide a small affordance to the label next to it. */ const EXAGGERATED_OVERSCROLL = 60; /** * Amount of milliseconds to wait before starting to scroll the header automatically. * Set a little conservatively in order to handle fake events dispatched on touch devices. */ const HEADER_SCROLL_DELAY = 650; /** * Interval in milliseconds at which to scroll the header * while the user is holding their pointer. */ const HEADER_SCROLL_INTERVAL = 100; /** * Base class for a tab header that supported pagination. * @docs-private */ class MatPaginatedTabHeader { constructor(_elementRef, _changeDetectorRef, _viewportRuler, _dir, _ngZone, _platform, _animationMode) { this._elementRef = _elementRef; this._changeDetectorRef = _changeDetectorRef; this._viewportRuler = _viewportRuler; this._dir = _dir; this._ngZone = _ngZone; this._platform = _platform; this._animationMode = _animationMode; /** The distance in pixels that the tab labels should be translated to the left. */ this._scrollDistance = 0; /** Whether the header should scroll to the selected index after the view has been checked. */ this._selectedIndexChanged = false; /** Emits when the component is destroyed. */ this._destroyed = new Subject(); /** Whether the controls for pagination should be displayed */ this._showPaginationControls = false; /** Whether the tab list can be scrolled more towards the end of the tab label list. */ this._disableScrollAfter = true; /** Whether the tab list can be scrolled more towards the beginning of the tab label list. */ this._disableScrollBefore = true; /** Stream that will stop the automated scrolling. */ this._stopScrolling = new Subject(); /** * Whether pagination should be disabled. This can be used to avoid unnecessary * layout recalculations if it's known that pagination won't be required. */ this.disablePagination = false; this._selectedIndex = 0; /** Event emitted when the option is selected. */ this.selectFocusedIndex = new EventEmitter(); /** Event emitted when a label is focused. */ this.indexFocused = new EventEmitter(); // Bind the `mouseleave` event on the outside since it doesn't change anything in the view. _ngZone.runOutsideAngular(() => { fromEvent(_elementRef.nativeElement, 'mouseleave') .pipe(takeUntil(this._destroyed)) .subscribe(() => { this._stopInterval(); }); }); } /** The index of the active tab. */ get selectedIndex() { return this._selectedIndex; } set selectedIndex(value) { value = coerceNumberProperty(value); if (this._selectedIndex != value) { this._selectedIndexChanged = true; this._selectedIndex = value; if (this._keyManager) { this._keyManager.updateActiveItem(value); } } } ngAfterViewInit() { // We need to handle these events manually, because we want to bind passive event listeners. fromEvent(this._previousPaginator.nativeElement, 'touchstart', passiveEventListenerOptions) .pipe(takeUntil(this._destroyed)) .subscribe(() => { this._handlePaginatorPress('before'); }); fromEvent(this._nextPaginator.nativeElement, 'touchstart', passiveEventListenerOptions) .pipe(takeUntil(this._destroyed)) .subscribe(() => { this._handlePaginatorPress('after'); }); } ngAfterContentInit() { const dirChange = this._dir ? this._dir.change : of('ltr'); const resize = this._viewportRuler.change(150); const realign = () => { this.updatePagination(); this._alignInkBarToSelectedTab(); }; this._keyManager = new FocusKeyManager(this._items) .withHorizontalOrientation(this._getLayoutDirection()) .withHomeAndEnd() .withWrap(); this._keyManager.updateActiveItem(this._selectedIndex); // Defer the first call in order to allow for slower browsers to lay out the elements. // This helps in cases where the user lands directly on a page with paginated tabs. typeof requestAnimationFrame !== 'undefined' ? requestAnimationFrame(realign) : realign(); // On dir change or window resize, realign the ink bar and update the orientation of // the key manager if the direction has changed. merge(dirChange, resize, this._items.changes).pipe(takeUntil(this._destroyed)).subscribe(() => { // We need to defer this to give the browser some time to recalculate // the element dimensions. The call has to be wrapped in `NgZone.run`, // because the viewport change handler runs outside of Angular. this._ngZone.run(() => Promise.resolve().then(realign)); this._keyManager.withHorizontalOrientation(this._getLayoutDirection()); }); // If there is a change in the focus key manager we need to emit the `indexFocused` // event in order to provide a public event that notifies about focus changes. Also we realign // the tabs container by scrolling the new focused tab into the visible section. this._keyManager.change.pipe(takeUntil(this._destroyed)).subscribe(newFocusIndex => { this.indexFocused.emit(newFocusIndex); this._setTabFocus(newFocusIndex); }); } ngAfterContentChecked() { // If the number of tab labels have changed, check if scrolling should be enabled if (this._tabLabelCount != this._items.length) { this.updatePagination(); this._tabLabelCount = this._items.length; this._changeDetectorRef.markForCheck(); } // If the selected index has changed, scroll to the label and check if the scrolling controls // should be disabled. if (this._selectedIndexChanged) { this._scrollToLabel(this._selectedIndex); this._checkScrollingControls(); this._alignInkBarToSelectedTab(); this._selectedIndexChanged = false; this._changeDetectorRef.markForCheck(); } // If the scroll distance has been changed (tab selected, focused, scroll controls activated), // then translate the header to reflect this. if (this._scrollDistanceChanged) { this._updateTabScrollPosition(); this._scrollDistanceChanged = false; this._changeDetectorRef.markForCheck(); } } ngOnDestroy() { this._destroyed.next(); this._destroyed.complete(); this._stopScrolling.complete(); } /** Handles keyboard events on the header. */ _handleKeydown(event) { // We don't handle any key bindings with a modifier key. if (hasModifierKey(event)) { return; } switch (event.keyCode) { case ENTER: case SPACE: if (this.focusIndex !== this.selectedIndex) { this.selectFocusedIndex.emit(this.focusIndex); this._itemSelected(event); } break; default: this._keyManager.onKeydown(event); } } /** * Callback for when the MutationObserver detects that the content has changed. */ _onContentChanges() { const textContent = this._elementRef.nativeElement.textContent; // We need to diff the text content of the header, because the MutationObserver callback // will fire even if the text content didn't change which is inefficient and is prone // to infinite loops if a poorly constructed expression is passed in (see #14249). if (textContent !== this._currentTextContent) { this._currentTextContent = textContent || ''; // The content observer runs outside the `NgZone` by default, which // means that we need to bring the callback back in ourselves. this._ngZone.run(() => { this.updatePagination(); this._alignInkBarToSelectedTab(); this._changeDetectorRef.markForCheck(); }); } } /** * Updates the view whether pagination should be enabled or not. * * WARNING: Calling this method can be very costly in terms of performance. It should be called * as infrequently as possible from outside of the Tabs component as it causes a reflow of the * page. */ updatePagination() { this._checkPaginationEnabled(); this._checkScrollingControls(); this._updateTabScrollPosition(); } /** Tracks which element has focus; used for keyboard navigation */ get focusIndex() { return this._keyManager ? this._keyManager.activeItemIndex : 0; } /** When the focus index is set, we must manually send focus to the correct label */ set focusIndex(value) { if (!this._isValidIndex(value) || this.focusIndex === value || !this._keyManager) { return; } this._keyManager.setActiveItem(value); } /** * Determines if an index is valid. If the tabs are not ready yet, we assume that the user is * providing a valid index and return true. */ _isValidIndex(index) { if (!this._items) { return true; } const tab = this._items ? this._items.toArray()[index] : null; return !!tab && !tab.disabled; } /** * Sets focus on the HTML element for the label wrapper and scrolls it into the view if * scrolling is enabled. */ _setTabFocus(tabIndex) { if (this._showPaginationControls) { this._scrollToLabel(tabIndex); } if (this._items && this._items.length) { this._items.toArray()[tabIndex].focus(); // Do not let the browser manage scrolling to focus the element, this will be handled // by using translation. In LTR, the scroll left should be 0. In RTL, the scroll width // should be the full width minus the offset width. const containerEl = this._tabListContainer.nativeElement; const dir = this._getLayoutDirection(); if (dir == 'ltr') { containerEl.scrollLeft = 0; } else { containerEl.scrollLeft = containerEl.scrollWidth - containerEl.offsetWidth; } } } /** The layout direction of the containing app. */ _getLayoutDirection() { return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr'; } /** Performs the CSS transformation on the tab list that will cause the list to scroll. */ _updateTabScrollPosition() { if (this.disablePagination) { return; } const scrollDistance = this.scrollDistance; const translateX = this._getLayoutDirection() === 'ltr' ? -scrollDistance : scrollDistance; // Don't use `translate3d` here because we don't want to create a new layer. A new layer // seems to cause flickering and overflow in Internet Explorer. For example, the ink bar // and ripples will exceed the boundaries of the visible tab bar. // See: https://github.com/angular/components/issues/10276 // We round the `transform` here, because transforms with sub-pixel precision cause some // browsers to blur the content of the element. this._tabList.nativeElement.style.transform = `translateX(${Math.round(translateX)}px)`; // Setting the `transform` on IE will change the scroll offset of the parent, causing the // position to be thrown off in some cases. We have to reset it ourselves to ensure that // it doesn't get thrown off. Note that we scope it only to IE and Edge, because messing // with the scroll position throws off Chrome 71+ in RTL mode (see #14689). if (this._platform.TRIDENT || this._platform.EDGE) { this._tabListContainer.nativeElement.scrollLeft = 0; } } /** Sets the distance in pixels that the tab header should be transformed in the X-axis. */ get scrollDistance() { return this._scrollDistance; } set scrollDistance(value) { this._scrollTo(value); } /** * Moves the tab list in the 'before' or 'after' direction (towards the beginning of the list or * the end of the list, respectively). The distance to scroll is computed to be a third of the * length of the tab list view window. * * This is an expensive call that forces a layout reflow to compute box and scroll metrics and * should be called sparingly. */ _scrollHeader(direction) { const viewLength = this._tabListContainer.nativeElement.offsetWidth; // Move the scroll distance one-third the length of the tab list's viewport. const scrollAmount = (direction == 'before' ? -1 : 1) * viewLength / 3; return this._scrollTo(this._scrollDistance + scrollAmount); } /** Handles click events on the pagination arrows. */ _handlePaginatorClick(direction) { this._stopInterval(); this._scrollHeader(direction); } /** * Moves the tab list such that the desired tab label (marked by index) is moved into view. * * This is an expensive call that forces a layout reflow to compute box and scroll metrics and * should be called sparingly. */ _scrollToLabel(labelIndex) { if (this.disablePagination) { return; } const selectedLabel = this._items ? this._items.toArray()[labelIndex] : null; if (!selectedLabel) { return; } // The view length is the visible width of the tab labels. const viewLength = this._tabListContainer.nativeElement.offsetWidth; const { offsetLeft, offsetWidth } = selectedLabel.elementRef.nativeElement; let labelBeforePos, labelAfterPos; if (this._getLayoutDirection() == 'ltr') { labelBeforePos = offsetLeft; labelAfterPos = labelBeforePos + offsetWidth; } else { labelAfterPos = this._tabList.nativeElement.offsetWidth - offsetLeft; labelBeforePos = labelAfterPos - offsetWidth; } const beforeVisiblePos = this.scrollDistance; const afterVisiblePos = this.scrollDistance + viewLength; if (labelBeforePos < beforeVisiblePos) { // Scroll header to move label to the before direction this.scrollDistance -= beforeVisiblePos - labelBeforePos + EXAGGERATED_OVERSCROLL; } else if (labelAfterPos > afterVisiblePos) { // Scroll header to move label to the after direction this.scrollDistance += labelAfterPos - afterVisiblePos + EXAGGERATED_OVERSCROLL; } } /** * Evaluate whether the pagination controls should be displayed. If the scroll width of the * tab list is wider than the size of the header container, then the pagination controls should * be shown. * * This is an expensive call that forces a layout reflow to compute box and scroll metrics and * should be called sparingly. */ _checkPaginationEnabled() { if (this.disablePagination) { this._showPaginationControls = false; } else { const isEnabled = this._tabList.nativeElement.scrollWidth > this._elementRef.nativeElement.offsetWidth; if (!isEnabled) { this.scrollDistance = 0; } if (isEnabled !== this._showPaginationControls) { this._changeDetectorRef.markForCheck(); } this._showPaginationControls = isEnabled; } } /** * Evaluate whether the before and after controls should be enabled or disabled. * If the header is at the beginning of the list (scroll distance is equal to 0) then disable the * before button. If the header is at the end of the list (scroll distance is equal to the * maximum distance we can scroll), then disable the after button. * * This is an expensive call that forces a layout reflow to compute box and scroll metrics and * should be called sparingly. */ _checkScrollingControls() { if (this.disablePagination) { this._disableScrollAfter = this._disableScrollBefore = true; } else { // Check if the pagination arrows should be activated. this._disableScrollBefore = this.scrollDistance == 0; this._disableScrollAfter = this.scrollDistance == this._getMaxScrollDistance(); this._changeDetectorRef.markForCheck(); } } /** * Determines what is the maximum length in pixels that can be set for the scroll distance. This * is equal to the difference in width between the tab list container and tab header container. * * This is an expensive call that forces a layout reflow to compute box and scroll metrics and * should be called sparingly. */ _getMaxScrollDistance() { const lengthOfTabList = this._tabList.nativeElement.scrollWidth; const viewLength = this._tabListContainer.nativeElement.offsetWidth; return (lengthOfTabList - viewLength) || 0; } /** Tells the ink-bar to align itself to the current label wrapper */ _alignInkBarToSelectedTab() { const selectedItem = this._items && this._items.length ? this._items.toArray()[this.selectedIndex] : null; const selectedLabelWrapper = selectedItem ? selectedItem.elementRef.nativeElement : null; if (selectedLabelWrapper) { this._inkBar.alignToElement(selectedLabelWrapper); } else { this._inkBar.hide(); } } /** Stops the currently-running paginator interval. */ _stopInterval() { this._stopScrolling.next(); } /** * Handles the user pressing down on one of the paginators. * Starts scrolling the header after a certain amount of time. * @param direction In which direction the paginator should be scrolled. */ _handlePaginatorPress(direction, mouseEvent) { // Don't start auto scrolling for right mouse button clicks. Note that we shouldn't have to // null check the `button`, but we do it so we don't break tests that use fake events. if (mouseEvent && mouseEvent.button != null && mouseEvent.button !== 0) { return; } // Avoid overlapping timers. this._stopInterval(); // Start a timer after the delay and keep firing based on the interval. timer(HEADER_SCROLL_DELAY, HEADER_SCROLL_INTERVAL) // Keep the timer going until something tells it to stop or the component is destroyed. .pipe(takeUntil(merge(this._stopScrolling, this._destroyed))) .subscribe(() => { const { maxScrollDistance, distance } = this._scrollHeader(direction); // Stop the timer if we've reached the start or the end. if (distance === 0 || distance >= maxScrollDistance) { this._stopInterval(); } }); } /** * Scrolls the header to a given position. * @param position Position to which to scroll. * @returns Information on the current scroll distance and the maximum. */ _scrollTo(position) { if (this.disablePagination) { return { maxScrollDistance: 0, distance: 0 }; } const maxScrollDistance = this._getMaxScrollDistance(); this._scrollDistance = Math.max(0, Math.min(maxScrollDistance, position)); // Mark that the scroll distance has changed so that after the view is checked, the CSS // transformation can move the header. this._scrollDistanceChanged = true; this._checkScrollingControls(); return { maxScrollDistance, distance: this._scrollDistance }; } } MatPaginatedTabHeader.decorators = [ { type: Directive } ]; MatPaginatedTabHeader.ctorParameters = () => [ { type: ElementRef }, { type: ChangeDetectorRef }, { type: ViewportRuler }, { type: Directionality, decorators: [{ type: Optional }] }, { type: NgZone }, { type: Platform }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; MatPaginatedTabHeader.propDecorators = { disablePagination: [{ 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 */ /** * Base class with all of the `MatTabHeader` functionality. * @docs-private */ class _MatTabHeaderBase extends MatPaginatedTabHeader { constructor(elementRef, changeDetectorRef, viewportRuler, dir, ngZone, platform, animationMode) { super(elementRef, changeDetectorRef, viewportRuler, dir, ngZone, platform, animationMode); this._disableRipple = false; } /** Whether the ripple effect is disabled or not. */ get disableRipple() { return this._disableRipple; } set disableRipple(value) { this._disableRipple = coerceBooleanProperty(value); } _itemSelected(event) { event.preventDefault(); } } _MatTabHeaderBase.decorators = [ { type: Directive } ]; _MatTabHeaderBase.ctorParameters = () => [ { type: ElementRef }, { type: ChangeDetectorRef }, { type: ViewportRuler }, { type: Directionality, decorators: [{ type: Optional }] }, { type: NgZone }, { type: Platform }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; _MatTabHeaderBase.propDecorators = { disableRipple: [{ type: Input }] }; /** * The header of the tab group which displays a list of all the tabs in the tab group. Includes * an ink bar that follows the currently selected tab. When the tabs list's width exceeds the * width of the header container, then arrows will be displayed to allow the user to scroll * left and right across the header. * @docs-private */ class MatTabHeader extends _MatTabHeaderBase { constructor(elementRef, changeDetectorRef, viewportRuler, dir, ngZone, platform, animationMode) { super(elementRef, changeDetectorRef, viewportRuler, dir, ngZone, platform, animationMode); } } MatTabHeader.decorators = [ { type: Component, args: [{ selector: 'mat-tab-header', template: "
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\n", inputs: ['selectedIndex'], outputs: ['selectFocusedIndex', 'indexFocused'], encapsulation: ViewEncapsulation.None, // tslint:disable-next-line:validate-decorators changeDetection: ChangeDetectionStrategy.Default, host: { 'class': 'mat-tab-header', '[class.mat-tab-header-pagination-controls-enabled]': '_showPaginationControls', '[class.mat-tab-header-rtl]': "_getLayoutDirection() == 'rtl'", }, styles: [".mat-tab-header{display:flex;overflow:hidden;position:relative;flex-shrink:0}.mat-tab-header-pagination{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;position:relative;display:none;justify-content:center;align-items:center;min-width:32px;cursor:pointer;z-index:2;-webkit-tap-highlight-color:transparent;touch-action:none}.mat-tab-header-pagination-controls-enabled .mat-tab-header-pagination{display:flex}.mat-tab-header-pagination-before,.mat-tab-header-rtl .mat-tab-header-pagination-after{padding-left:4px}.mat-tab-header-pagination-before .mat-tab-header-pagination-chevron,.mat-tab-header-rtl .mat-tab-header-pagination-after .mat-tab-header-pagination-chevron{transform:rotate(-135deg)}.mat-tab-header-rtl .mat-tab-header-pagination-before,.mat-tab-header-pagination-after{padding-right:4px}.mat-tab-header-rtl .mat-tab-header-pagination-before .mat-tab-header-pagination-chevron,.mat-tab-header-pagination-after .mat-tab-header-pagination-chevron{transform:rotate(45deg)}.mat-tab-header-pagination-chevron{border-style:solid;border-width:2px 2px 0 0;content:\"\";height:8px;width:8px}.mat-tab-header-pagination-disabled{box-shadow:none;cursor:default}.mat-tab-list{flex-grow:1;position:relative;transition:transform 500ms cubic-bezier(0.35, 0, 0.25, 1)}.mat-ink-bar{position:absolute;bottom:0;height:2px;transition:500ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable.mat-ink-bar{transition:none;animation:none}.mat-tab-group-inverted-header .mat-ink-bar{bottom:auto;top:0}.cdk-high-contrast-active .mat-ink-bar{outline:solid 2px;height:0}.mat-tab-labels{display:flex}[mat-align-tabs=center]>.mat-tab-header .mat-tab-labels{justify-content:center}[mat-align-tabs=end]>.mat-tab-header .mat-tab-labels{justify-content:flex-end}.mat-tab-label-container{display:flex;flex-grow:1;overflow:hidden;z-index:1}._mat-animation-noopable.mat-tab-list{transition:none;animation:none}.mat-tab-label{height:48px;padding:0 24px;cursor:pointer;box-sizing:border-box;opacity:.6;min-width:160px;text-align:center;display:inline-flex;justify-content:center;align-items:center;white-space:nowrap;position:relative}.mat-tab-label:focus{outline:none}.mat-tab-label:focus:not(.mat-tab-disabled){opacity:1}.cdk-high-contrast-active .mat-tab-label:focus{outline:dotted 2px;outline-offset:-2px}.mat-tab-label.mat-tab-disabled{cursor:default}.cdk-high-contrast-active .mat-tab-label.mat-tab-disabled{opacity:.5}.mat-tab-label .mat-tab-label-content{display:inline-flex;justify-content:center;align-items:center;white-space:nowrap}.cdk-high-contrast-active .mat-tab-label{opacity:1}@media(max-width: 599px){.mat-tab-label{min-width:72px}}\n"] },] } ]; MatTabHeader.ctorParameters = () => [ { type: ElementRef }, { type: ChangeDetectorRef }, { type: ViewportRuler }, { type: Directionality, decorators: [{ type: Optional }] }, { type: NgZone }, { type: Platform }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; MatTabHeader.propDecorators = { _items: [{ type: ContentChildren, args: [MatTabLabelWrapper, { descendants: false },] }], _inkBar: [{ type: ViewChild, args: [MatInkBar, { static: true },] }], _tabListContainer: [{ type: ViewChild, args: ['tabListContainer', { static: true },] }], _tabList: [{ type: ViewChild, args: ['tabList', { static: true },] }], _nextPaginator: [{ type: ViewChild, args: ['nextPaginator',] }], _previousPaginator: [{ type: ViewChild, args: ['previousPaginator',] }] }; /** * @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 */ /** * Base class with all of the `MatTabNav` functionality. * @docs-private */ class _MatTabNavBase extends MatPaginatedTabHeader { constructor(elementRef, dir, ngZone, changeDetectorRef, viewportRuler, platform, animationMode) { super(elementRef, changeDetectorRef, viewportRuler, dir, ngZone, platform, animationMode); this._disableRipple = false; /** Theme color of the nav bar. */ this.color = 'primary'; } /** Background color of the tab nav. */ get backgroundColor() { return this._backgroundColor; } set backgroundColor(value) { const classList = this._elementRef.nativeElement.classList; classList.remove(`mat-background-${this.backgroundColor}`); if (value) { classList.add(`mat-background-${value}`); } this._backgroundColor = value; } /** Whether the ripple effect is disabled or not. */ get disableRipple() { return this._disableRipple; } set disableRipple(value) { this._disableRipple = coerceBooleanProperty(value); } _itemSelected() { // noop } ngAfterContentInit() { // We need this to run before the `changes` subscription in parent to ensure that the // selectedIndex is up-to-date by the time the super class starts looking for it. this._items.changes.pipe(startWith(null), takeUntil(this._destroyed)).subscribe(() => { this.updateActiveLink(); }); super.ngAfterContentInit(); } /** Notifies the component that the active link has been changed. */ updateActiveLink() { if (!this._items) { return; } const items = this._items.toArray(); for (let i = 0; i < items.length; i++) { if (items[i].active) { this.selectedIndex = i; this._changeDetectorRef.markForCheck(); return; } } // The ink bar should hide itself if no items are active. this.selectedIndex = -1; this._inkBar.hide(); } } _MatTabNavBase.decorators = [ { type: Directive } ]; _MatTabNavBase.ctorParameters = () => [ { type: ElementRef }, { type: Directionality, decorators: [{ type: Optional }] }, { type: NgZone }, { type: ChangeDetectorRef }, { type: ViewportRuler }, { type: Platform }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; _MatTabNavBase.propDecorators = { backgroundColor: [{ type: Input }], disableRipple: [{ type: Input }], color: [{ type: Input }] }; /** * Navigation component matching the styles of the tab group header. * Provides anchored navigation with animated ink bar. */ class MatTabNav extends _MatTabNavBase { constructor(elementRef, dir, ngZone, changeDetectorRef, viewportRuler, platform, animationMode) { super(elementRef, dir, ngZone, changeDetectorRef, viewportRuler, platform, animationMode); } } MatTabNav.decorators = [ { type: Component, args: [{ selector: '[mat-tab-nav-bar]', exportAs: 'matTabNavBar, matTabNav', inputs: ['color'], template: "
\n
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\n\n
\n \n
\n \n
\n \n
\n\n\n
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\n", host: { 'class': 'mat-tab-nav-bar mat-tab-header', '[class.mat-tab-header-pagination-controls-enabled]': '_showPaginationControls', '[class.mat-tab-header-rtl]': "_getLayoutDirection() == 'rtl'", '[class.mat-primary]': 'color !== "warn" && color !== "accent"', '[class.mat-accent]': 'color === "accent"', '[class.mat-warn]': 'color === "warn"', }, encapsulation: ViewEncapsulation.None, // tslint:disable-next-line:validate-decorators changeDetection: ChangeDetectionStrategy.Default, styles: [".mat-tab-header{display:flex;overflow:hidden;position:relative;flex-shrink:0}.mat-tab-header-pagination{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;position:relative;display:none;justify-content:center;align-items:center;min-width:32px;cursor:pointer;z-index:2;-webkit-tap-highlight-color:transparent;touch-action:none}.mat-tab-header-pagination-controls-enabled .mat-tab-header-pagination{display:flex}.mat-tab-header-pagination-before,.mat-tab-header-rtl .mat-tab-header-pagination-after{padding-left:4px}.mat-tab-header-pagination-before .mat-tab-header-pagination-chevron,.mat-tab-header-rtl .mat-tab-header-pagination-after .mat-tab-header-pagination-chevron{transform:rotate(-135deg)}.mat-tab-header-rtl .mat-tab-header-pagination-before,.mat-tab-header-pagination-after{padding-right:4px}.mat-tab-header-rtl .mat-tab-header-pagination-before .mat-tab-header-pagination-chevron,.mat-tab-header-pagination-after .mat-tab-header-pagination-chevron{transform:rotate(45deg)}.mat-tab-header-pagination-chevron{border-style:solid;border-width:2px 2px 0 0;content:\"\";height:8px;width:8px}.mat-tab-header-pagination-disabled{box-shadow:none;cursor:default}.mat-tab-list{flex-grow:1;position:relative;transition:transform 500ms cubic-bezier(0.35, 0, 0.25, 1)}.mat-tab-links{display:flex}[mat-align-tabs=center]>.mat-tab-link-container .mat-tab-links{justify-content:center}[mat-align-tabs=end]>.mat-tab-link-container .mat-tab-links{justify-content:flex-end}.mat-ink-bar{position:absolute;bottom:0;height:2px;transition:500ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable.mat-ink-bar{transition:none;animation:none}.mat-tab-group-inverted-header .mat-ink-bar{bottom:auto;top:0}.cdk-high-contrast-active .mat-ink-bar{outline:solid 2px;height:0}.mat-tab-link-container{display:flex;flex-grow:1;overflow:hidden;z-index:1}.mat-tab-link{height:48px;padding:0 24px;cursor:pointer;box-sizing:border-box;opacity:.6;min-width:160px;text-align:center;display:inline-flex;justify-content:center;align-items:center;white-space:nowrap;vertical-align:top;text-decoration:none;position:relative;overflow:hidden;-webkit-tap-highlight-color:transparent}.mat-tab-link:focus{outline:none}.mat-tab-link:focus:not(.mat-tab-disabled){opacity:1}.cdk-high-contrast-active .mat-tab-link:focus{outline:dotted 2px;outline-offset:-2px}.mat-tab-link.mat-tab-disabled{cursor:default}.cdk-high-contrast-active .mat-tab-link.mat-tab-disabled{opacity:.5}.mat-tab-link .mat-tab-label-content{display:inline-flex;justify-content:center;align-items:center;white-space:nowrap}.cdk-high-contrast-active .mat-tab-link{opacity:1}[mat-stretch-tabs] .mat-tab-link{flex-basis:0;flex-grow:1}.mat-tab-link.mat-tab-disabled{pointer-events:none}@media(max-width: 599px){.mat-tab-link{min-width:72px}}\n"] },] } ]; MatTabNav.ctorParameters = () => [ { type: ElementRef }, { type: Directionality, decorators: [{ type: Optional }] }, { type: NgZone }, { type: ChangeDetectorRef }, { type: ViewportRuler }, { type: Platform }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; MatTabNav.propDecorators = { _items: [{ type: ContentChildren, args: [forwardRef(() => MatTabLink), { descendants: true },] }], _inkBar: [{ type: ViewChild, args: [MatInkBar, { static: true },] }], _tabListContainer: [{ type: ViewChild, args: ['tabListContainer', { static: true },] }], _tabList: [{ type: ViewChild, args: ['tabList', { static: true },] }], _nextPaginator: [{ type: ViewChild, args: ['nextPaginator',] }], _previousPaginator: [{ type: ViewChild, args: ['previousPaginator',] }] }; // Boilerplate for applying mixins to MatTabLink. const _MatTabLinkMixinBase = mixinTabIndex(mixinDisableRipple(mixinDisabled(class { }))); /** Base class with all of the `MatTabLink` functionality. */ class _MatTabLinkBase extends _MatTabLinkMixinBase { constructor(_tabNavBar, /** @docs-private */ elementRef, globalRippleOptions, tabIndex, _focusMonitor, animationMode) { super(); this._tabNavBar = _tabNavBar; this.elementRef = elementRef; this._focusMonitor = _focusMonitor; /** Whether the tab link is active or not. */ this._isActive = false; this.rippleConfig = globalRippleOptions || {}; this.tabIndex = parseInt(tabIndex) || 0; if (animationMode === 'NoopAnimations') { this.rippleConfig.animation = { enterDuration: 0, exitDuration: 0 }; } } /** Whether the link is active. */ get active() { return this._isActive; } set active(value) { const newValue = coerceBooleanProperty(value); if (newValue !== this._isActive) { this._isActive = value; this._tabNavBar.updateActiveLink(); } } /** * Whether ripples are disabled on interaction. * @docs-private */ get rippleDisabled() { return this.disabled || this.disableRipple || this._tabNavBar.disableRipple || !!this.rippleConfig.disabled; } /** Focuses the tab link. */ focus() { this.elementRef.nativeElement.focus(); } ngAfterViewInit() { this._focusMonitor.monitor(this.elementRef); } ngOnDestroy() { this._focusMonitor.stopMonitoring(this.elementRef); } _handleFocus() { // Since we allow navigation through tabbing in the nav bar, we // have to update the focused index whenever the link receives focus. this._tabNavBar.focusIndex = this._tabNavBar._items.toArray().indexOf(this); } } _MatTabLinkBase.decorators = [ { type: Directive } ]; _MatTabLinkBase.ctorParameters = () => [ { type: _MatTabNavBase }, { type: ElementRef }, { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_RIPPLE_GLOBAL_OPTIONS,] }] }, { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }, { type: FocusMonitor }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; _MatTabLinkBase.propDecorators = { active: [{ type: Input }] }; /** * Link inside of a `mat-tab-nav-bar`. */ class MatTabLink extends _MatTabLinkBase { constructor(tabNavBar, elementRef, ngZone, platform, globalRippleOptions, tabIndex, focusMonitor, animationMode) { super(tabNavBar, elementRef, globalRippleOptions, tabIndex, focusMonitor, animationMode); this._tabLinkRipple = new RippleRenderer(this, ngZone, elementRef, platform); this._tabLinkRipple.setupTriggerEvents(elementRef.nativeElement); } ngOnDestroy() { super.ngOnDestroy(); this._tabLinkRipple._removeTriggerEvents(); } } MatTabLink.decorators = [ { type: Directive, args: [{ selector: '[mat-tab-link], [matTabLink]', exportAs: 'matTabLink', inputs: ['disabled', 'disableRipple', 'tabIndex'], host: { 'class': 'mat-tab-link mat-focus-indicator', '[attr.aria-current]': 'active ? "page" : null', '[attr.aria-disabled]': 'disabled', '[attr.tabIndex]': 'tabIndex', '[class.mat-tab-disabled]': 'disabled', '[class.mat-tab-label-active]': 'active', '(focus)': '_handleFocus()' } },] } ]; MatTabLink.ctorParameters = () => [ { type: MatTabNav }, { type: ElementRef }, { type: NgZone }, { type: Platform }, { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_RIPPLE_GLOBAL_OPTIONS,] }] }, { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }, { type: FocusMonitor }, { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] } ]; /** * @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 MatTabsModule { } MatTabsModule.decorators = [ { type: NgModule, args: [{ imports: [ CommonModule, MatCommonModule, PortalModule, MatRippleModule, ObserversModule, A11yModule, ], // Don't export all components because some are only to be used internally. exports: [ MatCommonModule, MatTabGroup, MatTabLabel, MatTab, MatTabNav, MatTabLink, MatTabContent, ], declarations: [ MatTabGroup, MatTabLabel, MatTab, MatInkBar, MatTabLabelWrapper, MatTabNav, MatTabLink, MatTabBody, MatTabBodyPortal, MatTabHeader, MatTabContent, ], },] } ]; /** * @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 */ /** * Generated bundle index. Do not edit. */ export { MAT_TAB, MAT_TABS_CONFIG, MAT_TAB_GROUP, MatInkBar, MatTab, MatTabBody, MatTabBodyPortal, MatTabChangeEvent, MatTabContent, MatTabGroup, MatTabHeader, MatTabLabel, MatTabLabelWrapper, MatTabLink, MatTabNav, MatTabsModule, _MAT_INK_BAR_POSITIONER, _MatTabBodyBase, _MatTabGroupBase, _MatTabHeaderBase, _MatTabLinkBase, _MatTabNavBase, matTabsAnimations, _MAT_INK_BAR_POSITIONER_FACTORY as ɵangular_material_src_material_tabs_tabs_a, MAT_TAB_LABEL as ɵangular_material_src_material_tabs_tabs_b, MAT_TAB_CONTENT as ɵangular_material_src_material_tabs_tabs_c, MatPaginatedTabHeader as ɵangular_material_src_material_tabs_tabs_d }; //# sourceMappingURL=tabs.js.map