84 lines
2.3 KiB
TypeScript
84 lines
2.3 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {LocationStrategy} from '@angular/common';
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import {EventEmitter, Injectable} from '@angular/core';
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/**
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* A mock implementation of {@link LocationStrategy} that allows tests to fire simulated
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* location events.
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*
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* @stable
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*/
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@Injectable()
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export class MockLocationStrategy extends LocationStrategy {
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internalBaseHref: string = '/';
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internalPath: string = '/';
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internalTitle: string = '';
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urlChanges: string[] = [];
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/** @internal */
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_subject: EventEmitter<any> = new EventEmitter();
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constructor() { super(); }
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simulatePopState(url: string): void {
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this.internalPath = url;
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this._subject.emit(new _MockPopStateEvent(this.path()));
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}
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path(includeHash: boolean = false): string { return this.internalPath; }
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prepareExternalUrl(internal: string): string {
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if (internal.startsWith('/') && this.internalBaseHref.endsWith('/')) {
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return this.internalBaseHref + internal.substring(1);
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}
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return this.internalBaseHref + internal;
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}
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pushState(ctx: any, title: string, path: string, query: string): void {
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this.internalTitle = title;
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const url = path + (query.length > 0 ? ('?' + query) : '');
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this.internalPath = url;
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const externalUrl = this.prepareExternalUrl(url);
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this.urlChanges.push(externalUrl);
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}
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replaceState(ctx: any, title: string, path: string, query: string): void {
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this.internalTitle = title;
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const url = path + (query.length > 0 ? ('?' + query) : '');
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this.internalPath = url;
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const externalUrl = this.prepareExternalUrl(url);
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this.urlChanges.push('replace: ' + externalUrl);
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}
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onPopState(fn: (value: any) => void): void { this._subject.subscribe({next: fn}); }
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getBaseHref(): string { return this.internalBaseHref; }
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back(): void {
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if (this.urlChanges.length > 0) {
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this.urlChanges.pop();
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const nextUrl = this.urlChanges.length > 0 ? this.urlChanges[this.urlChanges.length - 1] : '';
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this.simulatePopState(nextUrl);
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}
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}
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forward(): void { throw 'not implemented'; }
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}
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class _MockPopStateEvent {
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pop: boolean = true;
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type: string = 'popstate';
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constructor(public newUrl: string) {}
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}
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