| {"version":3,"file":"snack-bar.js","sources":["../../../../../../src/material/snack-bar/snack-bar-config.ts","../../../../../../src/material/snack-bar/snack-bar-ref.ts","../../../../../../src/material/snack-bar/simple-snack-bar.ts","../../../../../../src/material/snack-bar/snack-bar-animations.ts","../../../../../../src/material/snack-bar/snack-bar-container.ts","../../../../../../src/material/snack-bar/snack-bar-module.ts","../../../../../../src/material/snack-bar/snack-bar.ts","../../../../../../src/material/snack-bar/public-api.ts","../../../../../../src/material/snack-bar/index.ts"],"sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ViewContainerRef, InjectionToken} from '@angular/core';\nimport {AriaLivePoliteness} from '@angular/cdk/a11y';\nimport {Direction} from '@angular/cdk/bidi';\n\n/** Injection token that can be used to access the data that was passed in to a snack bar. */\nexport const MAT_SNACK_BAR_DATA = new InjectionToken<any>('MatSnackBarData');\n\n/** Possible values for horizontalPosition on MatSnackBarConfig. */\nexport type MatSnackBarHorizontalPosition = 'start' | 'center' | 'end' | 'left' | 'right';\n\n/** Possible values for verticalPosition on MatSnackBarConfig. */\nexport type MatSnackBarVerticalPosition = 'top' | 'bottom';\n\n/**\n * Configuration used when opening a snack-bar.\n */\nexport class MatSnackBarConfig<D = any> {\n /** The politeness level for the MatAriaLiveAnnouncer announcement. */\n politeness?: AriaLivePoliteness = 'assertive';\n\n /**\n * Message to be announced by the LiveAnnouncer. When opening a snackbar without a custom\n * component or template, the announcement message will default to the specified message.\n */\n announcementMessage?: string = '';\n\n /**\n * The view container that serves as the parent for the snackbar for the purposes of dependency\n * injection. Note: this does not affect where the snackbar is inserted in the DOM.\n */\n viewContainerRef?: ViewContainerRef;\n\n /** The length of time in milliseconds to wait before automatically dismissing the snack bar. */\n duration?: number = 0;\n\n /** Extra CSS classes to be added to the snack bar container. */\n panelClass?: string | string[];\n\n /** Text layout direction for the snack bar. */\n direction?: Direction;\n\n /** Data being injected into the child component. */\n data?: D | null = null;\n\n /** The horizontal position to place the snack bar. */\n horizontalPosition?: MatSnackBarHorizontalPosition = 'center';\n\n /** The vertical position to place the snack bar. */\n verticalPosition?: MatSnackBarVerticalPosition = 'bottom';\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {OverlayRef} from '@angular/cdk/overlay';\nimport {Observable, Subject} from 'rxjs';\nimport {_SnackBarContainer} from './snack-bar-container';\n\n\n/** Event that is emitted when a snack bar is dismissed. */\nexport interface MatSnackBarDismiss {\n /** Whether the snack bar was dismissed using the action button. */\n dismissedByAction: boolean;\n}\n\n/** Maximum amount of milliseconds that can be passed into setTimeout. */\nconst MAX_TIMEOUT = Math.pow(2, 31) - 1;\n\n/**\n * Reference to a snack bar dispatched from the snack bar service.\n */\nexport class MatSnackBarRef<T> {\n /** The instance of the component making up the content of the snack bar. */\n instance: T;\n\n /**\n * The instance of the component making up the content of the snack bar.\n * @docs-private\n */\n containerInstance: _SnackBarContainer;\n\n /** Subject for notifying the user that the snack bar has been dismissed. */\n private readonly _afterDismissed = new Subject<MatSnackBarDismiss>();\n\n /** Subject for notifying the user that the snack bar has opened and appeared. */\n private readonly _afterOpened = new Subject<void>();\n\n /** Subject for notifying the user that the snack bar action was called. */\n private readonly _onAction = new Subject<void>();\n\n /**\n * Timeout ID for the duration setTimeout call. Used to clear the timeout if the snackbar is\n * dismissed before the duration passes.\n */\n private _durationTimeoutId: number;\n\n /** Whether the snack bar was dismissed using the action button. */\n private _dismissedByAction = false;\n\n constructor(containerInstance: _SnackBarContainer,\n private _overlayRef: OverlayRef) {\n this.containerInstance = containerInstance;\n // Dismiss snackbar on action.\n this.onAction().subscribe(() => this.dismiss());\n containerInstance._onExit.subscribe(() => this._finishDismiss());\n }\n\n /** Dismisses the snack bar. */\n dismiss(): void {\n if (!this._afterDismissed.closed) {\n this.containerInstance.exit();\n }\n clearTimeout(this._durationTimeoutId);\n }\n\n /** Marks the snackbar action clicked. */\n dismissWithAction(): void {\n if (!this._onAction.closed) {\n this._dismissedByAction = true;\n this._onAction.next();\n this._onAction.complete();\n }\n clearTimeout(this._durationTimeoutId);\n }\n\n\n /**\n * Marks the snackbar action clicked.\n * @deprecated Use `dismissWithAction` instead.\n * @breaking-change 8.0.0\n */\n closeWithAction(): void {\n this.dismissWithAction();\n }\n\n /** Dismisses the snack bar after some duration */\n _dismissAfter(duration: number): void {\n // Note that we need to cap the duration to the maximum value for setTimeout, because\n // it'll revert to 1 if somebody passes in something greater (e.g. `Infinity`). See #17234.\n this._durationTimeoutId = setTimeout(() => this.dismiss(), Math.min(duration, MAX_TIMEOUT));\n }\n\n /** Marks the snackbar as opened */\n _open(): void {\n if (!this._afterOpened.closed) {\n this._afterOpened.next();\n this._afterOpened.complete();\n }\n }\n\n /** Cleans up the DOM after closing. */\n private _finishDismiss(): void {\n this._overlayRef.dispose();\n\n if (!this._onAction.closed) {\n this._onAction.complete();\n }\n\n this._afterDismissed.next({dismissedByAction: this._dismissedByAction});\n this._afterDismissed.complete();\n this._dismissedByAction = false;\n }\n\n /** Gets an observable that is notified when the snack bar is finished closing. */\n afterDismissed(): Observable<MatSnackBarDismiss> {\n return this._afterDismissed;\n }\n\n /** Gets an observable that is notified when the snack bar has opened and appeared. */\n afterOpened(): Observable<void> {\n return this.containerInstance._onEnter;\n }\n\n /** Gets an observable that is notified when the snack bar action is called. */\n onAction(): Observable<void> {\n return this._onAction;\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ChangeDetectionStrategy, Component, Inject, ViewEncapsulation} from '@angular/core';\nimport {MAT_SNACK_BAR_DATA} from './snack-bar-config';\nimport {MatSnackBarRef} from './snack-bar-ref';\n\n\n/**\n * Interface for a simple snack bar component that has a message and a single action.\n */\nexport interface TextOnlySnackBar {\n data: {message: string, action: string};\n snackBarRef: MatSnackBarRef<TextOnlySnackBar>;\n action: () => void;\n hasAction: boolean;\n}\n\n/**\n * A component used to open as the default snack bar, matching material spec.\n * This should only be used internally by the snack bar service.\n */\n@Component({\n selector: 'simple-snack-bar',\n templateUrl: 'simple-snack-bar.html',\n styleUrls: ['simple-snack-bar.css'],\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n host: {\n 'class': 'mat-simple-snackbar',\n }\n})\nexport class SimpleSnackBar implements TextOnlySnackBar {\n /** Data that was injected into the snack bar. */\n data: {message: string, action: string};\n\n constructor(\n public snackBarRef: MatSnackBarRef<SimpleSnackBar>,\n @Inject(MAT_SNACK_BAR_DATA) data: any) {\n this.data = data;\n }\n\n /** Performs the action on the snack bar. */\n action(): void {\n this.snackBarRef.dismissWithAction();\n }\n\n /** If the action button should be shown. */\n get hasAction(): boolean {\n return !!this.data.action;\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport {\n animate,\n state,\n style,\n transition,\n trigger,\n AnimationTriggerMetadata,\n} from '@angular/animations';\n\n/**\n * Animations used by the Material snack bar.\n * @docs-private\n */\nexport const matSnackBarAnimations: {\n readonly snackBarState: AnimationTriggerMetadata;\n} = {\n /** Animation that shows and hides a snack bar. */\n snackBarState: trigger('state', [\n state('void, hidden', style({\n transform: 'scale(0.8)',\n opacity: 0,\n })),\n state('visible', style({\n transform: 'scale(1)',\n opacity: 1,\n })),\n transition('* => visible', animate('150ms cubic-bezier(0, 0, 0.2, 1)')),\n transition('* => void, * => hidden', animate('75ms cubic-bezier(0.4, 0.0, 1, 1)', style({\n opacity: 0\n }))),\n ])\n};\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {AnimationEvent} from '@angular/animations';\nimport {AriaLivePoliteness} from '@angular/cdk/a11y';\nimport {Platform} from '@angular/cdk/platform';\nimport {\n BasePortalOutlet,\n CdkPortalOutlet,\n ComponentPortal,\n TemplatePortal,\n DomPortal,\n} from '@angular/cdk/portal';\nimport {\n ChangeDetectionStrategy,\n ChangeDetectorRef,\n Component,\n ComponentRef,\n ElementRef,\n EmbeddedViewRef,\n NgZone,\n OnDestroy,\n ViewChild,\n ViewEncapsulation,\n} from '@angular/core';\nimport {Observable, Subject} from 'rxjs';\nimport {take} from 'rxjs/operators';\nimport {matSnackBarAnimations} from './snack-bar-animations';\nimport {MatSnackBarConfig} from './snack-bar-config';\n\n/**\n * Internal interface for a snack bar container.\n * @docs-private\n */\nexport interface _SnackBarContainer {\n snackBarConfig: MatSnackBarConfig;\n _onAnnounce: Subject<any>;\n _onExit: Subject<any>;\n _onEnter: Subject<any>;\n enter: () => void;\n exit: () => Observable<void>;\n attachTemplatePortal: <C>(portal: TemplatePortal<C>) => EmbeddedViewRef<C>;\n attachComponentPortal: <T>(portal: ComponentPortal<T>) => ComponentRef<T>;\n}\n\n/**\n * Internal component that wraps user-provided snack bar content.\n * @docs-private\n */\n@Component({\n selector: 'snack-bar-container',\n templateUrl: 'snack-bar-container.html',\n styleUrls: ['snack-bar-container.css'],\n // In Ivy embedded views will be change detected from their declaration place, rather than\n // where they were stamped out. This means that we can't have the snack bar container be OnPush,\n // because it might cause snack bars that were opened from a template not to be out of date.\n // tslint:disable-next-line:validate-decorators\n changeDetection: ChangeDetectionStrategy.Default,\n encapsulation: ViewEncapsulation.None,\n animations: [matSnackBarAnimations.snackBarState],\n host: {\n 'class': 'mat-snack-bar-container',\n '[@state]': '_animationState',\n '(@state.done)': 'onAnimationEnd($event)'\n },\n})\nexport class MatSnackBarContainer extends BasePortalOutlet\n implements OnDestroy, _SnackBarContainer {\n /** The number of milliseconds to wait before announcing the snack bar's content. */\n private readonly _announceDelay: number = 150;\n\n /** The timeout for announcing the snack bar's content. */\n private _announceTimeoutId: number;\n\n /** Whether the component has been destroyed. */\n private _destroyed = false;\n\n /** The portal outlet inside of this container into which the snack bar content will be loaded. */\n @ViewChild(CdkPortalOutlet, {static: true}) _portalOutlet: CdkPortalOutlet;\n\n /** Subject for notifying that the snack bar has announced to screen readers. */\n readonly _onAnnounce: Subject<void> = new Subject();\n\n /** Subject for notifying that the snack bar has exited from view. */\n readonly _onExit: Subject<void> = new Subject();\n\n /** Subject for notifying that the snack bar has finished entering the view. */\n readonly _onEnter: Subject<void> = new Subject();\n\n /** The state of the snack bar animations. */\n _animationState = 'void';\n\n /** aria-live value for the live region. */\n _live: AriaLivePoliteness;\n\n /**\n * Role of the live region. This is only for Firefox as there is a known issue where Firefox +\n * JAWS does not read out aria-live message.\n */\n _role?: 'status' | 'alert';\n\n constructor(\n private _ngZone: NgZone,\n private _elementRef: ElementRef<HTMLElement>,\n private _changeDetectorRef: ChangeDetectorRef,\n private _platform: Platform,\n /** The snack bar configuration. */\n public snackBarConfig: MatSnackBarConfig) {\n\n super();\n\n // Use aria-live rather than a live role like 'alert' or 'status'\n // because NVDA and JAWS have show inconsistent behavior with live roles.\n if (snackBarConfig.politeness === 'assertive' && !snackBarConfig.announcementMessage) {\n this._live = 'assertive';\n } else if (snackBarConfig.politeness === 'off') {\n this._live = 'off';\n } else {\n this._live = 'polite';\n }\n\n // Only set role for Firefox. Set role based on aria-live because setting role=\"alert\" implies\n // aria-live=\"assertive\" which may cause issues if aria-live is set to \"polite\" above.\n if (this._platform.FIREFOX) {\n if (this._live === 'polite') {\n this._role = 'status';\n }\n if (this._live === 'assertive') {\n this._role = 'alert';\n }\n }\n }\n\n /** Attach a component portal as content to this snack bar container. */\n attachComponentPortal<T>(portal: ComponentPortal<T>): ComponentRef<T> {\n this._assertNotAttached();\n this._applySnackBarClasses();\n return this._portalOutlet.attachComponentPortal(portal);\n }\n\n /** Attach a template portal as content to this snack bar container. */\n attachTemplatePortal<C>(portal: TemplatePortal<C>): EmbeddedViewRef<C> {\n this._assertNotAttached();\n this._applySnackBarClasses();\n return this._portalOutlet.attachTemplatePortal(portal);\n }\n\n /**\n * Attaches a DOM portal to the snack bar container.\n * @deprecated To be turned into a method.\n * @breaking-change 10.0.0\n */\n attachDomPortal = (portal: DomPortal) => {\n this._assertNotAttached();\n this._applySnackBarClasses();\n return this._portalOutlet.attachDomPortal(portal);\n }\n\n /** Handle end of animations, updating the state of the snackbar. */\n onAnimationEnd(event: AnimationEvent) {\n const {fromState, toState} = event;\n\n if ((toState === 'void' && fromState !== 'void') || toState === 'hidden') {\n this._completeExit();\n }\n\n if (toState === 'visible') {\n // Note: we shouldn't use `this` inside the zone callback,\n // because it can cause a memory leak.\n const onEnter = this._onEnter;\n\n this._ngZone.run(() => {\n onEnter.next();\n onEnter.complete();\n });\n }\n }\n\n /** Begin animation of snack bar entrance into view. */\n enter(): void {\n if (!this._destroyed) {\n this._animationState = 'visible';\n this._changeDetectorRef.detectChanges();\n this._screenReaderAnnounce();\n }\n }\n\n /** Begin animation of the snack bar exiting from view. */\n exit(): Observable<void> {\n // Note: this one transitions to `hidden`, rather than `void`, in order to handle the case\n // where multiple snack bars are opened in quick succession (e.g. two consecutive calls to\n // `MatSnackBar.open`).\n this._animationState = 'hidden';\n\n // Mark this element with an 'exit' attribute to indicate that the snackbar has\n // been dismissed and will soon be removed from the DOM. This is used by the snackbar\n // test harness.\n this._elementRef.nativeElement.setAttribute('mat-exit', '');\n\n // If the snack bar hasn't been announced by the time it exits it wouldn't have been open\n // long enough to visually read it either, so clear the timeout for announcing.\n clearTimeout(this._announceTimeoutId);\n\n return this._onExit;\n }\n\n /** Makes sure the exit callbacks have been invoked when the element is destroyed. */\n ngOnDestroy() {\n this._destroyed = true;\n this._completeExit();\n }\n\n /**\n * Waits for the zone to settle before removing the element. Helps prevent\n * errors where we end up removing an element which is in the middle of an animation.\n */\n private _completeExit() {\n this._ngZone.onMicrotaskEmpty.pipe(take(1)).subscribe(() => {\n this._onExit.next();\n this._onExit.complete();\n });\n }\n\n /** Applies the various positioning and user-configured CSS classes to the snack bar. */\n private _applySnackBarClasses() {\n const element: HTMLElement = this._elementRef.nativeElement;\n const panelClasses = this.snackBarConfig.panelClass;\n\n if (panelClasses) {\n if (Array.isArray(panelClasses)) {\n // Note that we can't use a spread here, because IE doesn't support multiple arguments.\n panelClasses.forEach(cssClass => element.classList.add(cssClass));\n } else {\n element.classList.add(panelClasses);\n }\n }\n\n if (this.snackBarConfig.horizontalPosition === 'center') {\n element.classList.add('mat-snack-bar-center');\n }\n\n if (this.snackBarConfig.verticalPosition === 'top') {\n element.classList.add('mat-snack-bar-top');\n }\n }\n\n /** Asserts that no content is already attached to the container. */\n private _assertNotAttached() {\n if (this._portalOutlet.hasAttached() && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Attempting to attach snack bar content after content is already attached');\n }\n }\n\n /**\n * Starts a timeout to move the snack bar content to the live region so screen readers will\n * announce it.\n */\n private _screenReaderAnnounce() {\n if (!this._announceTimeoutId) {\n this._ngZone.runOutsideAngular(() => {\n this._announceTimeoutId = setTimeout(() => {\n const inertElement = this._elementRef.nativeElement.querySelector('[aria-hidden]');\n const liveElement = this._elementRef.nativeElement.querySelector('[aria-live]');\n\n if (inertElement && liveElement) {\n // If an element in the snack bar content is focused before being moved\n // track it and restore focus after moving to the live region.\n let focusedElement: HTMLElement | null = null;\n if (this._platform.isBrowser &&\n document.activeElement instanceof HTMLElement &&\n inertElement.contains(document.activeElement)) {\n focusedElement = document.activeElement;\n }\n\n inertElement.removeAttribute('aria-hidden');\n liveElement.appendChild(inertElement);\n focusedElement?.focus();\n\n this._onAnnounce.next();\n this._onAnnounce.complete();\n }\n }, this._announceDelay);\n });\n }\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {OverlayModule} from '@angular/cdk/overlay';\nimport {PortalModule} from '@angular/cdk/portal';\nimport {CommonModule} from '@angular/common';\nimport {NgModule} from '@angular/core';\nimport {MatCommonModule} from '@angular/material/core';\nimport {MatButtonModule} from '@angular/material/button';\nimport {SimpleSnackBar} from './simple-snack-bar';\nimport {MatSnackBarContainer} from './snack-bar-container';\n\n\n@NgModule({\n imports: [\n OverlayModule,\n PortalModule,\n CommonModule,\n MatButtonModule,\n MatCommonModule,\n ],\n exports: [MatSnackBarContainer, MatCommonModule],\n declarations: [MatSnackBarContainer, SimpleSnackBar],\n entryComponents: [MatSnackBarContainer, SimpleSnackBar],\n})\nexport class MatSnackBarModule {}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {LiveAnnouncer} from '@angular/cdk/a11y';\nimport {BreakpointObserver, Breakpoints} from '@angular/cdk/layout';\nimport {Overlay, OverlayConfig, OverlayRef} from '@angular/cdk/overlay';\nimport {ComponentPortal, ComponentType, TemplatePortal} from '@angular/cdk/portal';\nimport {\n ComponentRef,\n EmbeddedViewRef,\n Inject,\n Injectable,\n InjectionToken,\n Injector,\n Optional,\n SkipSelf,\n TemplateRef,\n OnDestroy, Type,\n} from '@angular/core';\nimport {takeUntil} from 'rxjs/operators';\nimport {TextOnlySnackBar, SimpleSnackBar} from './simple-snack-bar';\nimport {MAT_SNACK_BAR_DATA, MatSnackBarConfig} from './snack-bar-config';\nimport {MatSnackBarContainer, _SnackBarContainer} from './snack-bar-container';\nimport {MatSnackBarModule} from './snack-bar-module';\nimport {MatSnackBarRef} from './snack-bar-ref';\n\n\n/** Injection token that can be used to specify default snack bar. */\nexport const MAT_SNACK_BAR_DEFAULT_OPTIONS =\n new InjectionToken<MatSnackBarConfig>('mat-snack-bar-default-options', {\n providedIn: 'root',\n factory: MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY,\n });\n\n/** @docs-private */\nexport function MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY(): MatSnackBarConfig {\n return new MatSnackBarConfig();\n}\n\n/**\n * Service to dispatch Material Design snack bar messages.\n */\n@Injectable({providedIn: MatSnackBarModule})\nexport class MatSnackBar implements OnDestroy {\n /**\n * Reference to the current snack bar in the view *at this level* (in the Angular injector tree).\n * If there is a parent snack-bar service, all operations should delegate to that parent\n * via `_openedSnackBarRef`.\n */\n private _snackBarRefAtThisLevel: MatSnackBarRef<any> | null = null;\n\n /** The component that should be rendered as the snack bar's simple component. */\n protected simpleSnackBarComponent: Type<TextOnlySnackBar> = SimpleSnackBar;\n\n /** The container component that attaches the provided template or component. */\n protected snackBarContainerComponent: Type<_SnackBarContainer> = MatSnackBarContainer;\n\n /** The CSS class to apply for handset mode. */\n protected handsetCssClass = 'mat-snack-bar-handset';\n\n /** Reference to the currently opened snackbar at *any* level. */\n get _openedSnackBarRef(): MatSnackBarRef<any> | null {\n const parent = this._parentSnackBar;\n return parent ? parent._openedSnackBarRef : this._snackBarRefAtThisLevel;\n }\n\n set _openedSnackBarRef(value: MatSnackBarRef<any> | null) {\n if (this._parentSnackBar) {\n this._parentSnackBar._openedSnackBarRef = value;\n } else {\n this._snackBarRefAtThisLevel = value;\n }\n }\n\n constructor(\n private _overlay: Overlay,\n private _live: LiveAnnouncer,\n private _injector: Injector,\n private _breakpointObserver: BreakpointObserver,\n @Optional() @SkipSelf() private _parentSnackBar: MatSnackBar,\n @Inject(MAT_SNACK_BAR_DEFAULT_OPTIONS) private _defaultConfig: MatSnackBarConfig) {}\n\n /**\n * Creates and dispatches a snack bar with a custom component for the content, removing any\n * currently opened snack bars.\n *\n * @param component Component to be instantiated.\n * @param config Extra configuration for the snack bar.\n */\n openFromComponent<T>(component: ComponentType<T>, config?: MatSnackBarConfig):\n MatSnackBarRef<T> {\n return this._attach(component, config) as MatSnackBarRef<T>;\n }\n\n /**\n * Creates and dispatches a snack bar with a custom template for the content, removing any\n * currently opened snack bars.\n *\n * @param template Template to be instantiated.\n * @param config Extra configuration for the snack bar.\n */\n openFromTemplate(template: TemplateRef<any>, config?: MatSnackBarConfig):\n MatSnackBarRef<EmbeddedViewRef<any>> {\n return this._attach(template, config);\n }\n\n /**\n * Opens a snackbar with a message and an optional action.\n * @param message The message to show in the snackbar.\n * @param action The label for the snackbar action.\n * @param config Additional configuration options for the snackbar.\n */\n open(message: string, action: string = '', config?: MatSnackBarConfig):\n MatSnackBarRef<TextOnlySnackBar> {\n const _config = {...this._defaultConfig, ...config};\n\n // Since the user doesn't have access to the component, we can\n // override the data to pass in our own message and action.\n _config.data = {message, action};\n\n // Since the snack bar has `role=\"alert\"`, we don't\n // want to announce the same message twice.\n if (_config.announcementMessage === message) {\n _config.announcementMessage = undefined;\n }\n\n return this.openFromComponent(this.simpleSnackBarComponent, _config);\n }\n\n /**\n * Dismisses the currently-visible snack bar.\n */\n dismiss(): void {\n if (this._openedSnackBarRef) {\n this._openedSnackBarRef.dismiss();\n }\n }\n\n ngOnDestroy() {\n // Only dismiss the snack bar at the current level on destroy.\n if (this._snackBarRefAtThisLevel) {\n this._snackBarRefAtThisLevel.dismiss();\n }\n }\n\n /**\n * Attaches the snack bar container component to the overlay.\n */\n private _attachSnackBarContainer(overlayRef: OverlayRef,\n config: MatSnackBarConfig): _SnackBarContainer {\n\n const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n const injector = Injector.create({\n parent: userInjector || this._injector,\n providers: [{provide: MatSnackBarConfig, useValue: config}]\n });\n\n const containerPortal =\n new ComponentPortal(this.snackBarContainerComponent, config.viewContainerRef, injector);\n const containerRef: ComponentRef<_SnackBarContainer> =\n overlayRef.attach(containerPortal);\n containerRef.instance.snackBarConfig = config;\n return containerRef.instance;\n }\n\n /**\n * Places a new component or a template as the content of the snack bar container.\n */\n private _attach<T>(content: ComponentType<T> | TemplateRef<T>, userConfig?: MatSnackBarConfig):\n MatSnackBarRef<T | EmbeddedViewRef<any>> {\n\n const config = {...new MatSnackBarConfig(), ...this._defaultConfig, ...userConfig};\n const overlayRef = this._createOverlay(config);\n const container = this._attachSnackBarContainer(overlayRef, config);\n const snackBarRef = new MatSnackBarRef<T | EmbeddedViewRef<any>>(container, overlayRef);\n\n if (content instanceof TemplateRef) {\n const portal = new TemplatePortal(content, null!, {\n $implicit: config.data,\n snackBarRef\n } as any);\n\n snackBarRef.instance = container.attachTemplatePortal(portal);\n } else {\n const injector = this._createInjector(config, snackBarRef);\n const portal = new ComponentPortal(content, undefined, injector);\n const contentRef = container.attachComponentPortal<T>(portal);\n\n // We can't pass this via the injector, because the injector is created earlier.\n snackBarRef.instance = contentRef.instance;\n }\n\n // Subscribe to the breakpoint observer and attach the mat-snack-bar-handset class as\n // appropriate. This class is applied to the overlay element because the overlay must expand to\n // fill the width of the screen for full width snackbars.\n this._breakpointObserver.observe(Breakpoints.HandsetPortrait).pipe(\n takeUntil(overlayRef.detachments())\n ).subscribe(state => {\n const classList = overlayRef.overlayElement.classList;\n state.matches ? classList.add(this.handsetCssClass) : classList.remove(this.handsetCssClass);\n });\n\n if (config.announcementMessage) {\n // Wait until the snack bar contents have been announced then deliver this message.\n container._onAnnounce.subscribe(() => {\n this._live.announce(config.announcementMessage!, config.politeness);\n });\n }\n\n this._animateSnackBar(snackBarRef, config);\n this._openedSnackBarRef = snackBarRef;\n return this._openedSnackBarRef;\n }\n\n /** Animates the old snack bar out and the new one in. */\n private _animateSnackBar(snackBarRef: MatSnackBarRef<any>, config: MatSnackBarConfig) {\n // When the snackbar is dismissed, clear the reference to it.\n snackBarRef.afterDismissed().subscribe(() => {\n // Clear the snackbar ref if it hasn't already been replaced by a newer snackbar.\n if (this._openedSnackBarRef == snackBarRef) {\n this._openedSnackBarRef = null;\n }\n\n if (config.announcementMessage) {\n this._live.clear();\n }\n });\n\n if (this._openedSnackBarRef) {\n // If a snack bar is already in view, dismiss it and enter the\n // new snack bar after exit animation is complete.\n this._openedSnackBarRef.afterDismissed().subscribe(() => {\n snackBarRef.containerInstance.enter();\n });\n this._openedSnackBarRef.dismiss();\n } else {\n // If no snack bar is in view, enter the new snack bar.\n snackBarRef.containerInstance.enter();\n }\n\n // If a dismiss timeout is provided, set up dismiss based on after the snackbar is opened.\n if (config.duration && config.duration > 0) {\n snackBarRef.afterOpened().subscribe(() => snackBarRef._dismissAfter(config.duration!));\n }\n }\n\n /**\n * Creates a new overlay and places it in the correct location.\n * @param config The user-specified snack bar config.\n */\n private _createOverlay(config: MatSnackBarConfig): OverlayRef {\n const overlayConfig = new OverlayConfig();\n overlayConfig.direction = config.direction;\n\n let positionStrategy = this._overlay.position().global();\n // Set horizontal position.\n const isRtl = config.direction === 'rtl';\n const isLeft = (\n config.horizontalPosition === 'left' ||\n (config.horizontalPosition === 'start' && !isRtl) ||\n (config.horizontalPosition === 'end' && isRtl));\n const isRight = !isLeft && config.horizontalPosition !== 'center';\n if (isLeft) {\n positionStrategy.left('0');\n } else if (isRight) {\n positionStrategy.right('0');\n } else {\n positionStrategy.centerHorizontally();\n }\n // Set horizontal position.\n if (config.verticalPosition === 'top') {\n positionStrategy.top('0');\n } else {\n positionStrategy.bottom('0');\n }\n\n overlayConfig.positionStrategy = positionStrategy;\n return this._overlay.create(overlayConfig);\n }\n\n /**\n * Creates an injector to be used inside of a snack bar component.\n * @param config Config that was used to create the snack bar.\n * @param snackBarRef Reference to the snack bar.\n */\n private _createInjector<T>(config: MatSnackBarConfig, snackBarRef: MatSnackBarRef<T>): Injector {\n const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n\n return Injector.create({\n parent: userInjector || this._injector,\n providers: [\n {provide: MatSnackBarRef, useValue: snackBarRef},\n {provide: MAT_SNACK_BAR_DATA, useValue: config.data}\n ]\n });\n }\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nexport * from './snack-bar-module';\nexport * from './snack-bar';\nexport * from './snack-bar-container';\nexport * from './snack-bar-config';\nexport * from './snack-bar-ref';\nexport * from './simple-snack-bar';\nexport * from './snack-bar-animations';\n","/**\n * Generated bundle index. 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