source: trip-planner-front/node_modules/@angular/material/fesm2015/snack-bar.js@ 6c1585f

import * as i1 from '@angular/cdk/overlay';
import { OverlayModule, OverlayConfig, Overlay } from '@angular/cdk/overlay';
import { BasePortalOutlet, CdkPortalOutlet, PortalModule, ComponentPortal, TemplatePortal } from '@angular/cdk/portal';
import { CommonModule } from '@angular/common';
import * as i0 from '@angular/core';
import { InjectionToken, Component, ViewEncapsulation, ChangeDetectionStrategy, Inject, NgZone, ElementRef, ChangeDetectorRef, ViewChild, NgModule, Injector, TemplateRef, Injectable, Optional, SkipSelf } from '@angular/core';
import { MatCommonModule } from '@angular/material/core';
import { MatButtonModule } from '@angular/material/button';
import { Subject } from 'rxjs';
import { Platform } from '@angular/cdk/platform';
import { take, takeUntil } from 'rxjs/operators';
import { trigger, state, style, transition, animate } from '@angular/animations';
import * as i2 from '@angular/cdk/a11y';
import { LiveAnnouncer } from '@angular/cdk/a11y';
import * as i3 from '@angular/cdk/layout';
import { Breakpoints, BreakpointObserver } from '@angular/cdk/layout';

/**
 * @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 access the data that was passed in to a snack bar. */
const MAT_SNACK_BAR_DATA = new InjectionToken('MatSnackBarData');
/**
 * Configuration used when opening a snack-bar.
 */
class MatSnackBarConfig {
    constructor() {
        /** The politeness level for the MatAriaLiveAnnouncer announcement. */
        this.politeness = 'assertive';
        /**
         * Message to be announced by the LiveAnnouncer. When opening a snackbar without a custom
         * component or template, the announcement message will default to the specified message.
         */
        this.announcementMessage = '';
        /** The length of time in milliseconds to wait before automatically dismissing the snack bar. */
        this.duration = 0;
        /** Data being injected into the child component. */
        this.data = null;
        /** The horizontal position to place the snack bar. */
        this.horizontalPosition = 'center';
        /** The vertical position to place the snack bar. */
        this.verticalPosition = 'bottom';
    }
}

/**
 * @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
 */
/** Maximum amount of milliseconds that can be passed into setTimeout. */
const MAX_TIMEOUT = Math.pow(2, 31) - 1;
/**
 * Reference to a snack bar dispatched from the snack bar service.
 */
class MatSnackBarRef {
    constructor(containerInstance, _overlayRef) {
        this._overlayRef = _overlayRef;
        /** Subject for notifying the user that the snack bar has been dismissed. */
        this._afterDismissed = new Subject();
        /** Subject for notifying the user that the snack bar has opened and appeared. */
        this._afterOpened = new Subject();
        /** Subject for notifying the user that the snack bar action was called. */
        this._onAction = new Subject();
        /** Whether the snack bar was dismissed using the action button. */
        this._dismissedByAction = false;
        this.containerInstance = containerInstance;
        // Dismiss snackbar on action.
        this.onAction().subscribe(() => this.dismiss());
        containerInstance._onExit.subscribe(() => this._finishDismiss());
    }
    /** Dismisses the snack bar. */
    dismiss() {
        if (!this._afterDismissed.closed) {
            this.containerInstance.exit();
        }
        clearTimeout(this._durationTimeoutId);
    }
    /** Marks the snackbar action clicked. */
    dismissWithAction() {
        if (!this._onAction.closed) {
            this._dismissedByAction = true;
            this._onAction.next();
            this._onAction.complete();
        }
        clearTimeout(this._durationTimeoutId);
    }
    /**
     * Marks the snackbar action clicked.
     * @deprecated Use `dismissWithAction` instead.
     * @breaking-change 8.0.0
     */
    closeWithAction() {
        this.dismissWithAction();
    }
    /** Dismisses the snack bar after some duration */
    _dismissAfter(duration) {
        // Note that we need to cap the duration to the maximum value for setTimeout, because
        // it'll revert to 1 if somebody passes in something greater (e.g. `Infinity`). See #17234.
        this._durationTimeoutId = setTimeout(() => this.dismiss(), Math.min(duration, MAX_TIMEOUT));
    }
    /** Marks the snackbar as opened */
    _open() {
        if (!this._afterOpened.closed) {
            this._afterOpened.next();
            this._afterOpened.complete();
        }
    }
    /** Cleans up the DOM after closing. */
    _finishDismiss() {
        this._overlayRef.dispose();
        if (!this._onAction.closed) {
            this._onAction.complete();
        }
        this._afterDismissed.next({ dismissedByAction: this._dismissedByAction });
        this._afterDismissed.complete();
        this._dismissedByAction = false;
    }
    /** Gets an observable that is notified when the snack bar is finished closing. */
    afterDismissed() {
        return this._afterDismissed;
    }
    /** Gets an observable that is notified when the snack bar has opened and appeared. */
    afterOpened() {
        return this.containerInstance._onEnter;
    }
    /** Gets an observable that is notified when the snack bar action is called. */
    onAction() {
        return this._onAction;
    }
}

/**
 * @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
 */
/**
 * A component used to open as the default snack bar, matching material spec.
 * This should only be used internally by the snack bar service.
 */
class SimpleSnackBar {
    constructor(snackBarRef, data) {
        this.snackBarRef = snackBarRef;
        this.data = data;
    }
    /** Performs the action on the snack bar. */
    action() {
        this.snackBarRef.dismissWithAction();
    }
    /** If the action button should be shown. */
    get hasAction() {
        return !!this.data.action;
    }
}
SimpleSnackBar.decorators = [
    { type: Component, args: [{
                selector: 'simple-snack-bar',
                template: "<span>{{data.message}}</span>\n<div class=\"mat-simple-snackbar-action\"  *ngIf=\"hasAction\">\n  <button mat-button (click)=\"action()\">{{data.action}}</button>\n</div>\n",
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
                host: {
                    'class': 'mat-simple-snackbar',
                },
                styles: [".mat-simple-snackbar{display:flex;justify-content:space-between;align-items:center;line-height:20px;opacity:1}.mat-simple-snackbar-action{flex-shrink:0;margin:-8px -8px -8px 8px}.mat-simple-snackbar-action button{max-height:36px;min-width:0}[dir=rtl] .mat-simple-snackbar-action{margin-left:-8px;margin-right:8px}\n"]
            },] }
];
SimpleSnackBar.ctorParameters = () => [
    { type: MatSnackBarRef },
    { type: undefined, decorators: [{ type: Inject, args: [MAT_SNACK_BAR_DATA,] }] }
];

/**
 * @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 snack bar.
 * @docs-private
 */
const matSnackBarAnimations = {
    /** Animation that shows and hides a snack bar. */
    snackBarState: trigger('state', [
        state('void, hidden', style({
            transform: 'scale(0.8)',
            opacity: 0,
        })),
        state('visible', style({
            transform: 'scale(1)',
            opacity: 1,
        })),
        transition('* => visible', animate('150ms cubic-bezier(0, 0, 0.2, 1)')),
        transition('* => void, * => hidden', animate('75ms cubic-bezier(0.4, 0.0, 1, 1)', style({
            opacity: 0
        }))),
    ])
};

/**
 * @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
 */
/**
 * Internal component that wraps user-provided snack bar content.
 * @docs-private
 */
class MatSnackBarContainer extends BasePortalOutlet {
    constructor(_ngZone, _elementRef, _changeDetectorRef, _platform, 
    /** The snack bar configuration. */
    snackBarConfig) {
        super();
        this._ngZone = _ngZone;
        this._elementRef = _elementRef;
        this._changeDetectorRef = _changeDetectorRef;
        this._platform = _platform;
        this.snackBarConfig = snackBarConfig;
        /** The number of milliseconds to wait before announcing the snack bar's content. */
        this._announceDelay = 150;
        /** Whether the component has been destroyed. */
        this._destroyed = false;
        /** Subject for notifying that the snack bar has announced to screen readers. */
        this._onAnnounce = new Subject();
        /** Subject for notifying that the snack bar has exited from view. */
        this._onExit = new Subject();
        /** Subject for notifying that the snack bar has finished entering the view. */
        this._onEnter = new Subject();
        /** The state of the snack bar animations. */
        this._animationState = 'void';
        /**
         * Attaches a DOM portal to the snack bar container.
         * @deprecated To be turned into a method.
         * @breaking-change 10.0.0
         */
        this.attachDomPortal = (portal) => {
            this._assertNotAttached();
            this._applySnackBarClasses();
            return this._portalOutlet.attachDomPortal(portal);
        };
        // Use aria-live rather than a live role like 'alert' or 'status'
        // because NVDA and JAWS have show inconsistent behavior with live roles.
        if (snackBarConfig.politeness === 'assertive' && !snackBarConfig.announcementMessage) {
            this._live = 'assertive';
        }
        else if (snackBarConfig.politeness === 'off') {
            this._live = 'off';
        }
        else {
            this._live = 'polite';
        }
        // Only set role for Firefox. Set role based on aria-live because setting role="alert" implies
        // aria-live="assertive" which may cause issues if aria-live is set to "polite" above.
        if (this._platform.FIREFOX) {
            if (this._live === 'polite') {
                this._role = 'status';
            }
            if (this._live === 'assertive') {
                this._role = 'alert';
            }
        }
    }
    /** Attach a component portal as content to this snack bar container. */
    attachComponentPortal(portal) {
        this._assertNotAttached();
        this._applySnackBarClasses();
        return this._portalOutlet.attachComponentPortal(portal);
    }
    /** Attach a template portal as content to this snack bar container. */
    attachTemplatePortal(portal) {
        this._assertNotAttached();
        this._applySnackBarClasses();
        return this._portalOutlet.attachTemplatePortal(portal);
    }
    /** Handle end of animations, updating the state of the snackbar. */
    onAnimationEnd(event) {
        const { fromState, toState } = event;
        if ((toState === 'void' && fromState !== 'void') || toState === 'hidden') {
            this._completeExit();
        }
        if (toState === 'visible') {
            // Note: we shouldn't use `this` inside the zone callback,
            // because it can cause a memory leak.
            const onEnter = this._onEnter;
            this._ngZone.run(() => {
                onEnter.next();
                onEnter.complete();
            });
        }
    }
    /** Begin animation of snack bar entrance into view. */
    enter() {
        if (!this._destroyed) {
            this._animationState = 'visible';
            this._changeDetectorRef.detectChanges();
            this._screenReaderAnnounce();
        }
    }
    /** Begin animation of the snack bar exiting from view. */
    exit() {
        // Note: this one transitions to `hidden`, rather than `void`, in order to handle the case
        // where multiple snack bars are opened in quick succession (e.g. two consecutive calls to
        // `MatSnackBar.open`).
        this._animationState = 'hidden';
        // Mark this element with an 'exit' attribute to indicate that the snackbar has
        // been dismissed and will soon be removed from the DOM. This is used by the snackbar
        // test harness.
        this._elementRef.nativeElement.setAttribute('mat-exit', '');
        // If the snack bar hasn't been announced by the time it exits it wouldn't have been open
        // long enough to visually read it either, so clear the timeout for announcing.
        clearTimeout(this._announceTimeoutId);
        return this._onExit;
    }
    /** Makes sure the exit callbacks have been invoked when the element is destroyed. */
    ngOnDestroy() {
        this._destroyed = true;
        this._completeExit();
    }
    /**
     * Waits for the zone to settle before removing the element. Helps prevent
     * errors where we end up removing an element which is in the middle of an animation.
     */
    _completeExit() {
        this._ngZone.onMicrotaskEmpty.pipe(take(1)).subscribe(() => {
            this._onExit.next();
            this._onExit.complete();
        });
    }
    /** Applies the various positioning and user-configured CSS classes to the snack bar. */
    _applySnackBarClasses() {
        const element = this._elementRef.nativeElement;
        const panelClasses = this.snackBarConfig.panelClass;
        if (panelClasses) {
            if (Array.isArray(panelClasses)) {
                // Note that we can't use a spread here, because IE doesn't support multiple arguments.
                panelClasses.forEach(cssClass => element.classList.add(cssClass));
            }
            else {
                element.classList.add(panelClasses);
            }
        }
        if (this.snackBarConfig.horizontalPosition === 'center') {
            element.classList.add('mat-snack-bar-center');
        }
        if (this.snackBarConfig.verticalPosition === 'top') {
            element.classList.add('mat-snack-bar-top');
        }
    }
    /** Asserts that no content is already attached to the container. */
    _assertNotAttached() {
        if (this._portalOutlet.hasAttached() && (typeof ngDevMode === 'undefined' || ngDevMode)) {
            throw Error('Attempting to attach snack bar content after content is already attached');
        }
    }
    /**
     * Starts a timeout to move the snack bar content to the live region so screen readers will
     * announce it.
     */
    _screenReaderAnnounce() {
        if (!this._announceTimeoutId) {
            this._ngZone.runOutsideAngular(() => {
                this._announceTimeoutId = setTimeout(() => {
                    const inertElement = this._elementRef.nativeElement.querySelector('[aria-hidden]');
                    const liveElement = this._elementRef.nativeElement.querySelector('[aria-live]');
                    if (inertElement && liveElement) {
                        // If an element in the snack bar content is focused before being moved
                        // track it and restore focus after moving to the live region.
                        let focusedElement = null;
                        if (this._platform.isBrowser &&
                            document.activeElement instanceof HTMLElement &&
                            inertElement.contains(document.activeElement)) {
                            focusedElement = document.activeElement;
                        }
                        inertElement.removeAttribute('aria-hidden');
                        liveElement.appendChild(inertElement);
                        focusedElement === null || focusedElement === void 0 ? void 0 : focusedElement.focus();
                        this._onAnnounce.next();
                        this._onAnnounce.complete();
                    }
                }, this._announceDelay);
            });
        }
    }
}
MatSnackBarContainer.decorators = [
    { type: Component, args: [{
                selector: 'snack-bar-container',
                template: "<!-- Initially holds the snack bar content, will be empty after announcing to screen readers. -->\n<div aria-hidden=\"true\">\n  <ng-template cdkPortalOutlet></ng-template>\n</div>\n\n<!-- Will receive the snack bar content from the non-live div, move will happen a short delay after opening -->\n<div [attr.aria-live]=\"_live\" [attr.role]=\"_role\"></div>\n",
                // In Ivy embedded views will be change detected from their declaration place, rather than
                // where they were stamped out. This means that we can't have the snack bar container be OnPush,
                // because it might cause snack bars that were opened from a template not to be out of date.
                // tslint:disable-next-line:validate-decorators
                changeDetection: ChangeDetectionStrategy.Default,
                encapsulation: ViewEncapsulation.None,
                animations: [matSnackBarAnimations.snackBarState],
                host: {
                    'class': 'mat-snack-bar-container',
                    '[@state]': '_animationState',
                    '(@state.done)': 'onAnimationEnd($event)'
                },
                styles: [".mat-snack-bar-container{border-radius:4px;box-sizing:border-box;display:block;margin:24px;max-width:33vw;min-width:344px;padding:14px 16px;min-height:48px;transform-origin:center}.cdk-high-contrast-active .mat-snack-bar-container{border:solid 1px}.mat-snack-bar-handset{width:100%}.mat-snack-bar-handset .mat-snack-bar-container{margin:8px;max-width:100%;min-width:0;width:100%}\n"]
            },] }
];
MatSnackBarContainer.ctorParameters = () => [
    { type: NgZone },
    { type: ElementRef },
    { type: ChangeDetectorRef },
    { type: Platform },
    { type: MatSnackBarConfig }
];
MatSnackBarContainer.propDecorators = {
    _portalOutlet: [{ type: ViewChild, args: [CdkPortalOutlet, { static: true },] }]
};

/**
 * @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 MatSnackBarModule {
}
MatSnackBarModule.decorators = [
    { type: NgModule, args: [{
                imports: [
                    OverlayModule,
                    PortalModule,
                    CommonModule,
                    MatButtonModule,
                    MatCommonModule,
                ],
                exports: [MatSnackBarContainer, MatCommonModule],
                declarations: [MatSnackBarContainer, SimpleSnackBar],
                entryComponents: [MatSnackBarContainer, SimpleSnackBar],
            },] }
];

/**
 * @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 specify default snack bar. */
const MAT_SNACK_BAR_DEFAULT_OPTIONS = new InjectionToken('mat-snack-bar-default-options', {
    providedIn: 'root',
    factory: MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY,
});
/** @docs-private */
function MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY() {
    return new MatSnackBarConfig();
}
/**
 * Service to dispatch Material Design snack bar messages.
 */
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.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: MatSnackBarModule });
MatSnackBar.decorators = [
    { type: Injectable, args: [{ providedIn: 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,] }] }
];

/**
 * @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_SNACK_BAR_DATA, MAT_SNACK_BAR_DEFAULT_OPTIONS, MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY, MatSnackBar, MatSnackBarConfig, MatSnackBarContainer, MatSnackBarModule, MatSnackBarRef, SimpleSnackBar, matSnackBarAnimations };
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