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{"version":3,"file":"bottom-sheet.js","sources":["../../../../../../src/material/bottom-sheet/bottom-sheet-config.ts","../../../../../../src/material/bottom-sheet/bottom-sheet-animations.ts","../../../../../../src/material/bottom-sheet/bottom-sheet-container.ts","../../../../../../src/material/bottom-sheet/bottom-sheet-module.ts","../../../../../../src/material/bottom-sheet/bottom-sheet-ref.ts","../../../../../../src/material/bottom-sheet/bottom-sheet.ts","../../../../../../src/material/bottom-sheet/public-api.ts","../../../../../../src/material/bottom-sheet/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 {Direction} from '@angular/cdk/bidi';\nimport {ScrollStrategy} from '@angular/cdk/overlay';\nimport {InjectionToken, ViewContainerRef} from '@angular/core';\n\n/** Injection token that can be used to access the data that was passed in to a bottom sheet. */\nexport const MAT_BOTTOM_SHEET_DATA = new InjectionToken<any>('MatBottomSheetData');\n\n/**\n * Configuration used when opening a bottom sheet.\n */\nexport class MatBottomSheetConfig<D = any> {\n /** The view container to place the overlay for the bottom sheet into. */\n viewContainerRef?: ViewContainerRef;\n\n /** Extra CSS classes to be added to the bottom sheet container. */\n panelClass?: string | string[];\n\n /** Text layout direction for the bottom sheet. */\n direction?: Direction;\n\n /** Data being injected into the child component. */\n data?: D | null = null;\n\n /** Whether the bottom sheet has a backdrop. */\n hasBackdrop?: boolean = true;\n\n /** Custom class for the backdrop. */\n backdropClass?: string;\n\n /** Whether the user can use escape or clicking outside to close the bottom sheet. */\n disableClose?: boolean = false;\n\n /** Aria label to assign to the bottom sheet element. */\n ariaLabel?: string | null = null;\n\n /**\n * Whether the bottom sheet should close when the user goes backwards/forwards in history.\n * Note that this usually doesn't include clicking on links (unless the user is using\n * the `HashLocationStrategy`).\n */\n closeOnNavigation?: boolean = true;\n\n // Note that this is disabled by default, because while the a11y recommendations are to focus\n // the first focusable element, doing so prevents screen readers from reading out the\n // rest of the bottom sheet content.\n /** Whether the bottom sheet should focus the first focusable element on open. */\n autoFocus?: boolean = false;\n\n /**\n * Whether the bottom sheet should restore focus to the\n * previously-focused element, after it's closed.\n */\n restoreFocus?: boolean = true;\n\n /** Scroll strategy to be used for the bottom sheet. */\n scrollStrategy?: ScrollStrategy;\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';\nimport {AnimationCurves, AnimationDurations} from '@angular/material/core';\n\n/** Animations used by the Material bottom sheet. */\nexport const matBottomSheetAnimations: {\n readonly bottomSheetState: AnimationTriggerMetadata;\n} = {\n /** Animation that shows and hides a bottom sheet. */\n bottomSheetState: trigger('state', [\n state('void, hidden', style({transform: 'translateY(100%)'})),\n state('visible', style({transform: 'translateY(0%)'})),\n transition('visible => void, visible => hidden',\n animate(`${AnimationDurations.COMPLEX} ${AnimationCurves.ACCELERATION_CURVE}`)),\n transition('void => visible',\n animate(`${AnimationDurations.EXITING} ${AnimationCurves.DECELERATION_CURVE}`)),\n ])\n};\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n Component,\n ComponentRef,\n EmbeddedViewRef,\n ViewChild,\n OnDestroy,\n ElementRef,\n ChangeDetectionStrategy,\n ViewEncapsulation,\n ChangeDetectorRef,\n EventEmitter,\n Inject,\n Optional,\n} from '@angular/core';\nimport {AnimationEvent} from '@angular/animations';\nimport {\n BasePortalOutlet,\n ComponentPortal,\n TemplatePortal,\n CdkPortalOutlet,\n DomPortal,\n} from '@angular/cdk/portal';\nimport {BreakpointObserver, Breakpoints} from '@angular/cdk/layout';\nimport {MatBottomSheetConfig} from './bottom-sheet-config';\nimport {matBottomSheetAnimations} from './bottom-sheet-animations';\nimport {Subscription} from 'rxjs';\nimport {DOCUMENT} from '@angular/common';\nimport {FocusTrap, FocusTrapFactory} from '@angular/cdk/a11y';\n\n// TODO(crisbeto): consolidate some logic between this, MatDialog and MatSnackBar\n\n/**\n * Internal component that wraps user-provided bottom sheet content.\n * @docs-private\n */\n@Component({\n selector: 'mat-bottom-sheet-container',\n templateUrl: 'bottom-sheet-container.html',\n styleUrls: ['bottom-sheet-container.css'],\n // In Ivy embedded views will be change detected from their declaration place, rather than where\n // they were stamped out. This means that we can't have the bottom sheet container be OnPush,\n // because it might cause the sheets 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: [matBottomSheetAnimations.bottomSheetState],\n host: {\n 'class': 'mat-bottom-sheet-container',\n 'tabindex': '-1',\n 'role': 'dialog',\n 'aria-modal': 'true',\n '[attr.aria-label]': 'bottomSheetConfig?.ariaLabel',\n '[@state]': '_animationState',\n '(@state.start)': '_onAnimationStart($event)',\n '(@state.done)': '_onAnimationDone($event)'\n },\n})\nexport class MatBottomSheetContainer extends BasePortalOutlet implements OnDestroy {\n private _breakpointSubscription: Subscription;\n\n /** The portal outlet inside of this container into which the content will be loaded. */\n @ViewChild(CdkPortalOutlet, {static: true}) _portalOutlet: CdkPortalOutlet;\n\n /** The state of the bottom sheet animations. */\n _animationState: 'void' | 'visible' | 'hidden' = 'void';\n\n /** Emits whenever the state of the animation changes. */\n _animationStateChanged = new EventEmitter<AnimationEvent>();\n\n /** The class that traps and manages focus within the bottom sheet. */\n private _focusTrap: FocusTrap;\n\n /** Element that was focused before the bottom sheet was opened. */\n private _elementFocusedBeforeOpened: HTMLElement | null = null;\n\n /** Server-side rendering-compatible reference to the global document object. */\n private _document: Document;\n\n /** Whether the component has been destroyed. */\n private _destroyed: boolean;\n\n constructor(\n private _elementRef: ElementRef<HTMLElement>,\n private _changeDetectorRef: ChangeDetectorRef,\n private _focusTrapFactory: FocusTrapFactory,\n breakpointObserver: BreakpointObserver,\n @Optional() @Inject(DOCUMENT) document: any,\n /** The bottom sheet configuration. */\n public bottomSheetConfig: MatBottomSheetConfig) {\n super();\n\n this._document = document;\n this._breakpointSubscription = breakpointObserver\n .observe([Breakpoints.Medium, Breakpoints.Large, Breakpoints.XLarge])\n .subscribe(() => {\n this._toggleClass('mat-bottom-sheet-container-medium',\n breakpointObserver.isMatched(Breakpoints.Medium));\n this._toggleClass('mat-bottom-sheet-container-large',\n breakpointObserver.isMatched(Breakpoints.Large));\n this._toggleClass('mat-bottom-sheet-container-xlarge',\n breakpointObserver.isMatched(Breakpoints.XLarge));\n });\n }\n\n /** Attach a component portal as content to this bottom sheet container. */\n attachComponentPortal<T>(portal: ComponentPortal<T>): ComponentRef<T> {\n this._validatePortalAttached();\n this._setPanelClass();\n this._savePreviouslyFocusedElement();\n return this._portalOutlet.attachComponentPortal(portal);\n }\n\n /** Attach a template portal as content to this bottom sheet container. */\n attachTemplatePortal<C>(portal: TemplatePortal<C>): EmbeddedViewRef<C> {\n this._validatePortalAttached();\n this._setPanelClass();\n this._savePreviouslyFocusedElement();\n return this._portalOutlet.attachTemplatePortal(portal);\n }\n\n /**\n * Attaches a DOM portal to the bottom sheet container.\n * @deprecated To be turned into a method.\n * @breaking-change 10.0.0\n */\n attachDomPortal = (portal: DomPortal) => {\n this._validatePortalAttached();\n this._setPanelClass();\n this._savePreviouslyFocusedElement();\n return this._portalOutlet.attachDomPortal(portal);\n }\n\n /** Begin animation of bottom sheet entrance into view. */\n enter(): void {\n if (!this._destroyed) {\n this._animationState = 'visible';\n this._changeDetectorRef.detectChanges();\n }\n }\n\n /** Begin animation of the bottom sheet exiting from view. */\n exit(): void {\n if (!this._destroyed) {\n this._animationState = 'hidden';\n this._changeDetectorRef.markForCheck();\n }\n }\n\n ngOnDestroy() {\n this._breakpointSubscription.unsubscribe();\n this._destroyed = true;\n }\n\n _onAnimationDone(event: AnimationEvent) {\n if (event.toState === 'hidden') {\n this._restoreFocus();\n } else if (event.toState === 'visible') {\n this._trapFocus();\n }\n\n this._animationStateChanged.emit(event);\n }\n\n _onAnimationStart(event: AnimationEvent) {\n this._animationStateChanged.emit(event);\n }\n\n private _toggleClass(cssClass: string, add: boolean) {\n const classList = this._elementRef.nativeElement.classList;\n add ? classList.add(cssClass) : classList.remove(cssClass);\n }\n\n private _validatePortalAttached() {\n if (this._portalOutlet.hasAttached() && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error('Attempting to attach bottom sheet content after content is already attached');\n }\n }\n\n private _setPanelClass() {\n const element: HTMLElement = this._elementRef.nativeElement;\n const panelClass = this.bottomSheetConfig.panelClass;\n\n if (Array.isArray(panelClass)) {\n // Note that we can't use a spread here, because IE doesn't support multiple arguments.\n panelClass.forEach(cssClass => element.classList.add(cssClass));\n } else if (panelClass) {\n element.classList.add(panelClass);\n }\n }\n\n /** Moves the focus inside the focus trap. */\n private _trapFocus() {\n const element = this._elementRef.nativeElement;\n\n if (!this._focusTrap) {\n this._focusTrap = this._focusTrapFactory.create(element);\n }\n\n if (this.bottomSheetConfig.autoFocus) {\n this._focusTrap.focusInitialElementWhenReady();\n } else {\n const activeElement = this._getActiveElement();\n\n // Otherwise ensure that focus is on the container. It's possible that a different\n // component tried to move focus while the open animation was running. See:\n // https://github.com/angular/components/issues/16215. Note that we only want to do this\n // if the focus isn't inside the bottom sheet already, because it's possible that the\n // consumer turned off `autoFocus` in order to move focus themselves.\n if (activeElement !== element && !element.contains(activeElement)) {\n element.focus();\n }\n }\n }\n\n /** Restores focus to the element that was focused before the bottom sheet was opened. */\n private _restoreFocus() {\n const toFocus = this._elementFocusedBeforeOpened;\n\n // We need the extra check, because IE can set the `activeElement` to null in some cases.\n if (this.bottomSheetConfig.restoreFocus && toFocus && typeof toFocus.focus === 'function') {\n const activeElement = this._getActiveElement();\n const element = this._elementRef.nativeElement;\n\n // Make sure that focus is still inside the bottom sheet or is on the body (usually because a\n // non-focusable element like the backdrop was clicked) before moving it. It's possible that\n // the consumer moved it themselves before the animation was done, in which case we shouldn't\n // do anything.\n if (!activeElement || activeElement === this._document.body || activeElement === element ||\n element.contains(activeElement)) {\n toFocus.focus();\n }\n }\n\n if (this._focusTrap) {\n this._focusTrap.destroy();\n }\n }\n\n /** Saves a reference to the element that was focused before the bottom sheet was opened. */\n private _savePreviouslyFocusedElement() {\n this._elementFocusedBeforeOpened = this._getActiveElement();\n\n // The `focus` method isn't available during server-side rendering.\n if (this._elementRef.nativeElement.focus) {\n Promise.resolve().then(() => this._elementRef.nativeElement.focus());\n }\n }\n\n /** Gets the currently-focused element on the page. */\n private _getActiveElement(): HTMLElement | null {\n // If the `activeElement` is inside a shadow root, `document.activeElement` will\n // point to the shadow root so we have to descend into it ourselves.\n const activeElement = this._document.activeElement;\n return activeElement?.shadowRoot?.activeElement as HTMLElement || activeElement;\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 {NgModule} from '@angular/core';\nimport {MatCommonModule} from '@angular/material/core';\nimport {MatBottomSheetContainer} from './bottom-sheet-container';\n\n\n@NgModule({\n imports: [\n OverlayModule,\n MatCommonModule,\n PortalModule,\n ],\n exports: [MatBottomSheetContainer, MatCommonModule],\n declarations: [MatBottomSheetContainer],\n entryComponents: [MatBottomSheetContainer],\n})\nexport class MatBottomSheetModule {}\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 {ESCAPE, hasModifierKey} from '@angular/cdk/keycodes';\nimport {OverlayRef} from '@angular/cdk/overlay';\nimport {merge, Observable, Subject} from 'rxjs';\nimport {filter, take} from 'rxjs/operators';\nimport {MatBottomSheetContainer} from './bottom-sheet-container';\n\n\n/**\n * Reference to a bottom sheet dispatched from the bottom sheet service.\n */\nexport class MatBottomSheetRef<T = any, R = any> {\n /** Instance of the component making up the content of the bottom sheet. */\n instance: T;\n\n /**\n * Instance of the component into which the bottom sheet content is projected.\n * @docs-private\n */\n containerInstance: MatBottomSheetContainer;\n\n /** Whether the user is allowed to close the bottom sheet. */\n disableClose: boolean | undefined;\n\n /** Subject for notifying the user that the bottom sheet has been dismissed. */\n private readonly _afterDismissed = new Subject<R | undefined>();\n\n /** Subject for notifying the user that the bottom sheet has opened and appeared. */\n private readonly _afterOpened = new Subject<void>();\n\n /** Result to be passed down to the `afterDismissed` stream. */\n private _result: R | undefined;\n\n /** Handle to the timeout that's running as a fallback in case the exit animation doesn't fire. */\n private _closeFallbackTimeout: number;\n\n constructor(\n containerInstance: MatBottomSheetContainer,\n private _overlayRef: OverlayRef) {\n this.containerInstance = containerInstance;\n this.disableClose = containerInstance.bottomSheetConfig.disableClose;\n\n // Emit when opening animation completes\n containerInstance._animationStateChanged.pipe(\n filter(event => event.phaseName === 'done' && event.toState === 'visible'),\n take(1)\n )\n .subscribe(() => {\n this._afterOpened.next();\n this._afterOpened.complete();\n });\n\n // Dispose overlay when closing animation is complete\n containerInstance._animationStateChanged\n .pipe(filter(event => event.phaseName === 'done' && event.toState === 'hidden'), take(1))\n .subscribe(() => {\n clearTimeout(this._closeFallbackTimeout);\n _overlayRef.dispose();\n });\n\n _overlayRef.detachments().pipe(take(1)).subscribe(() => {\n this._afterDismissed.next(this._result);\n this._afterDismissed.complete();\n });\n\n merge(\n _overlayRef.backdropClick(),\n _overlayRef.keydownEvents().pipe(filter(event => event.keyCode === ESCAPE))\n ).subscribe(event => {\n if (!this.disableClose &&\n (event.type !== 'keydown' || !hasModifierKey(event as KeyboardEvent))) {\n event.preventDefault();\n this.dismiss();\n }\n });\n }\n\n /**\n * Dismisses the bottom sheet.\n * @param result Data to be passed back to the bottom sheet opener.\n */\n dismiss(result?: R): void {\n if (!this._afterDismissed.closed) {\n // Transition the backdrop in parallel to the bottom sheet.\n this.containerInstance._animationStateChanged.pipe(\n filter(event => event.phaseName === 'start'),\n take(1)\n ).subscribe(event => {\n // The logic that disposes of the overlay depends on the exit animation completing, however\n // it isn't guaranteed if the parent view is destroyed while it's running. Add a fallback\n // timeout which will clean everything up if the animation hasn't fired within the specified\n // amount of time plus 100ms. We don't need to run this outside the NgZone, because for the\n // vast majority of cases the timeout will have been cleared before it has fired.\n this._closeFallbackTimeout = setTimeout(() => {\n this._overlayRef.dispose();\n }, event.totalTime + 100);\n\n this._overlayRef.detachBackdrop();\n });\n\n this._result = result;\n this.containerInstance.exit();\n }\n }\n\n /** Gets an observable that is notified when the bottom sheet is finished closing. */\n afterDismissed(): Observable<R | undefined> {\n return this._afterDismissed;\n }\n\n /** Gets an observable that is notified when the bottom sheet has opened and appeared. */\n afterOpened(): Observable<void> {\n return this._afterOpened;\n }\n\n /**\n * Gets an observable that emits when the overlay's backdrop has been clicked.\n */\n backdropClick(): Observable<MouseEvent> {\n return this._overlayRef.backdropClick();\n }\n\n /**\n * Gets an observable that emits when keydown events are targeted on the overlay.\n */\n keydownEvents(): Observable<KeyboardEvent> {\n return this._overlayRef.keydownEvents();\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 {Directionality} from '@angular/cdk/bidi';\nimport {Overlay, OverlayConfig, OverlayRef} from '@angular/cdk/overlay';\nimport {ComponentPortal, ComponentType, TemplatePortal} from '@angular/cdk/portal';\nimport {\n ComponentRef,\n Injectable,\n Injector,\n Optional,\n SkipSelf,\n TemplateRef,\n InjectionToken,\n Inject,\n OnDestroy,\n StaticProvider,\n} from '@angular/core';\nimport {of as observableOf} from 'rxjs';\nimport {MAT_BOTTOM_SHEET_DATA, MatBottomSheetConfig} from './bottom-sheet-config';\nimport {MatBottomSheetContainer} from './bottom-sheet-container';\nimport {MatBottomSheetModule} from './bottom-sheet-module';\nimport {MatBottomSheetRef} from './bottom-sheet-ref';\n\n\n/** Injection token that can be used to specify default bottom sheet options. */\nexport const MAT_BOTTOM_SHEET_DEFAULT_OPTIONS =\n new InjectionToken<MatBottomSheetConfig>('mat-bottom-sheet-default-options');\n\n/**\n * Service to trigger Material Design bottom sheets.\n */\n@Injectable({providedIn: MatBottomSheetModule})\nexport class MatBottomSheet implements OnDestroy {\n private _bottomSheetRefAtThisLevel: MatBottomSheetRef<any> | null = null;\n\n /** Reference to the currently opened bottom sheet. */\n get _openedBottomSheetRef(): MatBottomSheetRef<any> | null {\n const parent = this._parentBottomSheet;\n return parent ? parent._openedBottomSheetRef : this._bottomSheetRefAtThisLevel;\n }\n\n set _openedBottomSheetRef(value: MatBottomSheetRef<any> | null) {\n if (this._parentBottomSheet) {\n this._parentBottomSheet._openedBottomSheetRef = value;\n } else {\n this._bottomSheetRefAtThisLevel = value;\n }\n }\n\n constructor(\n private _overlay: Overlay,\n private _injector: Injector,\n @Optional() @SkipSelf() private _parentBottomSheet: MatBottomSheet,\n @Optional() @Inject(MAT_BOTTOM_SHEET_DEFAULT_OPTIONS)\n private _defaultOptions?: MatBottomSheetConfig) {}\n\n /**\n * Opens a bottom sheet containing the given component.\n * @param component Type of the component to load into the bottom sheet.\n * @param config Extra configuration options.\n * @returns Reference to the newly-opened bottom sheet.\n */\n open<T, D = any, R = any>(component: ComponentType<T>,\n config?: MatBottomSheetConfig<D>): MatBottomSheetRef<T, R>;\n\n /**\n * Opens a bottom sheet containing the given template.\n * @param template TemplateRef to instantiate as the bottom sheet content.\n * @param config Extra configuration options.\n * @returns Reference to the newly-opened bottom sheet.\n */\n open<T, D = any, R = any>(template: TemplateRef<T>,\n config?: MatBottomSheetConfig<D>): MatBottomSheetRef<T, R>;\n\n open<T, D = any, R = any>(componentOrTemplateRef: ComponentType<T> | TemplateRef<T>,\n config?: MatBottomSheetConfig<D>): MatBottomSheetRef<T, R> {\n\n const _config =\n _applyConfigDefaults(this._defaultOptions || new MatBottomSheetConfig(), config);\n const overlayRef = this._createOverlay(_config);\n const container = this._attachContainer(overlayRef, _config);\n const ref = new MatBottomSheetRef<T, R>(container, overlayRef);\n\n if (componentOrTemplateRef instanceof TemplateRef) {\n container.attachTemplatePortal(new TemplatePortal<T>(componentOrTemplateRef, null!, {\n $implicit: _config.data,\n bottomSheetRef: ref\n } as any));\n } else {\n const portal = new ComponentPortal(componentOrTemplateRef, undefined,\n this._createInjector(_config, ref));\n const contentRef = container.attachComponentPortal(portal);\n ref.instance = contentRef.instance;\n }\n\n // When the bottom sheet is dismissed, clear the reference to it.\n ref.afterDismissed().subscribe(() => {\n // Clear the bottom sheet ref if it hasn't already been replaced by a newer one.\n if (this._openedBottomSheetRef == ref) {\n this._openedBottomSheetRef = null;\n }\n });\n\n if (this._openedBottomSheetRef) {\n // If a bottom sheet is already in view, dismiss it and enter the\n // new bottom sheet after exit animation is complete.\n this._openedBottomSheetRef.afterDismissed().subscribe(() => ref.containerInstance.enter());\n this._openedBottomSheetRef.dismiss();\n } else {\n // If no bottom sheet is in view, enter the new bottom sheet.\n ref.containerInstance.enter();\n }\n\n this._openedBottomSheetRef = ref;\n\n return ref;\n }\n\n /**\n * Dismisses the currently-visible bottom sheet.\n * @param result Data to pass to the bottom sheet instance.\n */\n dismiss<R = any>(result?: R): void {\n if (this._openedBottomSheetRef) {\n this._openedBottomSheetRef.dismiss(result);\n }\n }\n\n ngOnDestroy() {\n if (this._bottomSheetRefAtThisLevel) {\n this._bottomSheetRefAtThisLevel.dismiss();\n }\n }\n\n /**\n * Attaches the bottom sheet container component to the overlay.\n */\n private _attachContainer(overlayRef: OverlayRef,\n config: MatBottomSheetConfig): MatBottomSheetContainer {\n\n const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n const injector = Injector.create({\n parent: userInjector || this._injector,\n providers: [{provide: MatBottomSheetConfig, useValue: config}]\n });\n\n const containerPortal =\n new ComponentPortal(MatBottomSheetContainer, config.viewContainerRef, injector);\n const containerRef: ComponentRef<MatBottomSheetContainer> = overlayRef.attach(containerPortal);\n return containerRef.instance;\n }\n\n /**\n * Creates a new overlay and places it in the correct location.\n * @param config The user-specified bottom sheet config.\n */\n private _createOverlay(config: MatBottomSheetConfig): OverlayRef {\n const overlayConfig = new OverlayConfig({\n direction: config.direction,\n hasBackdrop: config.hasBackdrop,\n disposeOnNavigation: config.closeOnNavigation,\n maxWidth: '100%',\n scrollStrategy: config.scrollStrategy || this._overlay.scrollStrategies.block(),\n positionStrategy: this._overlay.position().global().centerHorizontally().bottom('0')\n });\n\n if (config.backdropClass) {\n overlayConfig.backdropClass = config.backdropClass;\n }\n\n return this._overlay.create(overlayConfig);\n }\n\n /**\n * Creates an injector to be used inside of a bottom sheet component.\n * @param config Config that was used to create the bottom sheet.\n * @param bottomSheetRef Reference to the bottom sheet.\n */\n private _createInjector<T>(config: MatBottomSheetConfig,\n bottomSheetRef: MatBottomSheetRef<T>): Injector {\n\n const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n const providers: StaticProvider[] = [\n {provide: MatBottomSheetRef, useValue: bottomSheetRef},\n {provide: MAT_BOTTOM_SHEET_DATA, useValue: config.data}\n ];\n\n if (config.direction &&\n (!userInjector || !userInjector.get<Directionality | null>(Directionality, null))) {\n providers.push({\n provide: Directionality,\n useValue: {value: config.direction, change: observableOf()}\n });\n }\n\n return Injector.create({parent: userInjector || this._injector, providers});\n }\n}\n\n/**\n * Applies default options to the bottom sheet config.\n * @param defaults Object containing the default values to which to fall back.\n * @param config The configuration to which the defaults will be applied.\n * @returns The new configuration object with defaults applied.\n */\nfunction _applyConfigDefaults(defaults: MatBottomSheetConfig,\n config?: MatBottomSheetConfig): MatBottomSheetConfig {\n return {...defaults, ...config};\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 './bottom-sheet-module';\nexport * from './bottom-sheet';\nexport * from './bottom-sheet-config';\nexport * from './bottom-sheet-container';\nexport * from './bottom-sheet-animations';\nexport * from './bottom-sheet-ref';\n","/**\n * Generated bundle index. Do not edit.\n */\n\nexport * from 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