/** * @license * Copyright Google LLC All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import { LiveAnnouncer } from '@angular/cdk/a11y'; import { BreakpointObserver, Breakpoints } from '@angular/cdk/layout'; import { Overlay, OverlayConfig } from '@angular/cdk/overlay'; import { ComponentPortal, TemplatePortal } from '@angular/cdk/portal'; import { Inject, Injectable, InjectionToken, Injector, Optional, SkipSelf, TemplateRef, } from '@angular/core'; import { takeUntil } from 'rxjs/operators'; import { SimpleSnackBar } from './simple-snack-bar'; import { MAT_SNACK_BAR_DATA, MatSnackBarConfig } from './snack-bar-config'; import { MatSnackBarContainer } from './snack-bar-container'; import { MatSnackBarModule } from './snack-bar-module'; import { MatSnackBarRef } from './snack-bar-ref'; import * as i0 from "@angular/core"; import * as i1 from "@angular/cdk/overlay"; import * as i2 from "@angular/cdk/a11y"; import * as i3 from "@angular/cdk/layout"; import * as i4 from "./snack-bar-module"; /** Injection token that can be used to specify default snack bar. */ import * as ɵngcc0 from '@angular/core'; import * as ɵngcc1 from '@angular/cdk/overlay'; import * as ɵngcc2 from '@angular/cdk/a11y'; import * as ɵngcc3 from '@angular/cdk/layout'; import * as ɵngcc4 from './snack-bar-config'; export const MAT_SNACK_BAR_DEFAULT_OPTIONS = new InjectionToken('mat-snack-bar-default-options', { providedIn: 'root', factory: MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY, }); /** @docs-private */ export function MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY() { return new MatSnackBarConfig(); } /** * Service to dispatch Material Design snack bar messages. */ export class MatSnackBar { constructor(_overlay, _live, _injector, _breakpointObserver, _parentSnackBar, _defaultConfig) { this._overlay = _overlay; this._live = _live; this._injector = _injector; this._breakpointObserver = _breakpointObserver; this._parentSnackBar = _parentSnackBar; this._defaultConfig = _defaultConfig; /** * Reference to the current snack bar in the view *at this level* (in the Angular injector tree). * If there is a parent snack-bar service, all operations should delegate to that parent * via `_openedSnackBarRef`. */ this._snackBarRefAtThisLevel = null; /** The component that should be rendered as the snack bar's simple component. */ this.simpleSnackBarComponent = SimpleSnackBar; /** The container component that attaches the provided template or component. */ this.snackBarContainerComponent = MatSnackBarContainer; /** The CSS class to apply for handset mode. */ this.handsetCssClass = 'mat-snack-bar-handset'; } /** Reference to the currently opened snackbar at *any* level. */ get _openedSnackBarRef() { const parent = this._parentSnackBar; return parent ? parent._openedSnackBarRef : this._snackBarRefAtThisLevel; } set _openedSnackBarRef(value) { if (this._parentSnackBar) { this._parentSnackBar._openedSnackBarRef = value; } else { this._snackBarRefAtThisLevel = value; } } /** * Creates and dispatches a snack bar with a custom component for the content, removing any * currently opened snack bars. * * @param component Component to be instantiated. * @param config Extra configuration for the snack bar. */ openFromComponent(component, config) { return this._attach(component, config); } /** * Creates and dispatches a snack bar with a custom template for the content, removing any * currently opened snack bars. * * @param template Template to be instantiated. * @param config Extra configuration for the snack bar. */ openFromTemplate(template, config) { return this._attach(template, config); } /** * Opens a snackbar with a message and an optional action. * @param message The message to show in the snackbar. * @param action The label for the snackbar action. * @param config Additional configuration options for the snackbar. */ open(message, action = '', config) { const _config = Object.assign(Object.assign({}, this._defaultConfig), config); // Since the user doesn't have access to the component, we can // override the data to pass in our own message and action. _config.data = { message, action }; // Since the snack bar has `role="alert"`, we don't // want to announce the same message twice. if (_config.announcementMessage === message) { _config.announcementMessage = undefined; } return this.openFromComponent(this.simpleSnackBarComponent, _config); } /** * Dismisses the currently-visible snack bar. */ dismiss() { if (this._openedSnackBarRef) { this._openedSnackBarRef.dismiss(); } } ngOnDestroy() { // Only dismiss the snack bar at the current level on destroy. if (this._snackBarRefAtThisLevel) { this._snackBarRefAtThisLevel.dismiss(); } } /** * Attaches the snack bar container component to the overlay. */ _attachSnackBarContainer(overlayRef, config) { const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector; const injector = Injector.create({ parent: userInjector || this._injector, providers: [{ provide: MatSnackBarConfig, useValue: config }] }); const containerPortal = new ComponentPortal(this.snackBarContainerComponent, config.viewContainerRef, injector); const containerRef = overlayRef.attach(containerPortal); containerRef.instance.snackBarConfig = config; return containerRef.instance; } /** * Places a new component or a template as the content of the snack bar container. */ _attach(content, userConfig) { const config = Object.assign(Object.assign(Object.assign({}, new MatSnackBarConfig()), this._defaultConfig), userConfig); const overlayRef = this._createOverlay(config); const container = this._attachSnackBarContainer(overlayRef, config); const snackBarRef = new MatSnackBarRef(container, overlayRef); if (content instanceof TemplateRef) { const portal = new TemplatePortal(content, null, { $implicit: config.data, snackBarRef }); snackBarRef.instance = container.attachTemplatePortal(portal); } else { const injector = this._createInjector(config, snackBarRef); const portal = new ComponentPortal(content, undefined, injector); const contentRef = container.attachComponentPortal(portal); // We can't pass this via the injector, because the injector is created earlier. snackBarRef.instance = contentRef.instance; } // Subscribe to the breakpoint observer and attach the mat-snack-bar-handset class as // appropriate. This class is applied to the overlay element because the overlay must expand to // fill the width of the screen for full width snackbars. this._breakpointObserver.observe(Breakpoints.HandsetPortrait).pipe(takeUntil(overlayRef.detachments())).subscribe(state => { const classList = overlayRef.overlayElement.classList; state.matches ? classList.add(this.handsetCssClass) : classList.remove(this.handsetCssClass); }); if (config.announcementMessage) { // Wait until the snack bar contents have been announced then deliver this message. container._onAnnounce.subscribe(() => { this._live.announce(config.announcementMessage, config.politeness); }); } this._animateSnackBar(snackBarRef, config); this._openedSnackBarRef = snackBarRef; return this._openedSnackBarRef; } /** Animates the old snack bar out and the new one in. */ _animateSnackBar(snackBarRef, config) { // When the snackbar is dismissed, clear the reference to it. snackBarRef.afterDismissed().subscribe(() => { // Clear the snackbar ref if it hasn't already been replaced by a newer snackbar. if (this._openedSnackBarRef == snackBarRef) { this._openedSnackBarRef = null; } if (config.announcementMessage) { this._live.clear(); } }); if (this._openedSnackBarRef) { // If a snack bar is already in view, dismiss it and enter the // new snack bar after exit animation is complete. this._openedSnackBarRef.afterDismissed().subscribe(() => { snackBarRef.containerInstance.enter(); }); this._openedSnackBarRef.dismiss(); } else { // If no snack bar is in view, enter the new snack bar. snackBarRef.containerInstance.enter(); } // If a dismiss timeout is provided, set up dismiss based on after the snackbar is opened. if (config.duration && config.duration > 0) { snackBarRef.afterOpened().subscribe(() => snackBarRef._dismissAfter(config.duration)); } } /** * Creates a new overlay and places it in the correct location. * @param config The user-specified snack bar config. */ _createOverlay(config) { const overlayConfig = new OverlayConfig(); overlayConfig.direction = config.direction; let positionStrategy = this._overlay.position().global(); // Set horizontal position. const isRtl = config.direction === 'rtl'; const isLeft = (config.horizontalPosition === 'left' || (config.horizontalPosition === 'start' && !isRtl) || (config.horizontalPosition === 'end' && isRtl)); const isRight = !isLeft && config.horizontalPosition !== 'center'; if (isLeft) { positionStrategy.left('0'); } else if (isRight) { positionStrategy.right('0'); } else { positionStrategy.centerHorizontally(); } // Set horizontal position. if (config.verticalPosition === 'top') { positionStrategy.top('0'); } else { positionStrategy.bottom('0'); } overlayConfig.positionStrategy = positionStrategy; return this._overlay.create(overlayConfig); } /** * Creates an injector to be used inside of a snack bar component. * @param config Config that was used to create the snack bar. * @param snackBarRef Reference to the snack bar. */ _createInjector(config, snackBarRef) { const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector; return Injector.create({ parent: userInjector || this._injector, providers: [ { provide: MatSnackBarRef, useValue: snackBarRef }, { provide: MAT_SNACK_BAR_DATA, useValue: config.data } ] }); } } MatSnackBar.ɵfac = function MatSnackBar_Factory(t) { return new (t || MatSnackBar)(ɵngcc0.ɵɵinject(ɵngcc1.Overlay), ɵngcc0.ɵɵinject(ɵngcc2.LiveAnnouncer), ɵngcc0.ɵɵinject(ɵngcc0.Injector), ɵngcc0.ɵɵinject(ɵngcc3.BreakpointObserver), ɵngcc0.ɵɵinject(MatSnackBar, 12), ɵngcc0.ɵɵinject(MAT_SNACK_BAR_DEFAULT_OPTIONS)); }; MatSnackBar.ɵprov = i0.ɵɵdefineInjectable({ factory: function MatSnackBar_Factory() { return new MatSnackBar(i0.ɵɵinject(i1.Overlay), i0.ɵɵinject(i2.LiveAnnouncer), i0.ɵɵinject(i0.INJECTOR), i0.ɵɵinject(i3.BreakpointObserver), i0.ɵɵinject(MatSnackBar, 12), i0.ɵɵinject(MAT_SNACK_BAR_DEFAULT_OPTIONS)); }, token: MatSnackBar, providedIn: i4.MatSnackBarModule }); MatSnackBar.ctorParameters = () => [ { type: Overlay }, { type: LiveAnnouncer }, { type: Injector }, { type: BreakpointObserver }, { type: MatSnackBar, decorators: [{ type: Optional }, { type: SkipSelf }] }, { type: MatSnackBarConfig, decorators: [{ type: Inject, args: [MAT_SNACK_BAR_DEFAULT_OPTIONS,] }] } ]; (function () { (typeof ngDevMode === "undefined" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(MatSnackBar, [{ type: Injectable, args: [{ providedIn: MatSnackBarModule }] }], function () { return [{ type: ɵngcc1.Overlay }, { type: ɵngcc2.LiveAnnouncer }, { type: ɵngcc0.Injector }, { type: ɵngcc3.BreakpointObserver }, { type: MatSnackBar, decorators: [{ type: Optional }, { type: SkipSelf }] }, { type: ɵngcc4.MatSnackBarConfig, decorators: [{ type: Inject, args: [MAT_SNACK_BAR_DEFAULT_OPTIONS] }] }]; }, null); })(); //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\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"]}