125 lines
3.6 KiB
TypeScript
125 lines
3.6 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 {Location, LocationStrategy} from '@angular/common';
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import {EventEmitter, Injectable} from '@angular/core';
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/**
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* A spy for {@link Location} that allows tests to fire simulated location events.
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*
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* @experimental
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*/
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@Injectable()
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export class SpyLocation implements Location {
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urlChanges: string[] = [];
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private _history: LocationState[] = [new LocationState('', '')];
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private _historyIndex: number = 0;
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/** @internal */
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_subject: EventEmitter<any> = new EventEmitter();
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/** @internal */
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_baseHref: string = '';
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/** @internal */
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_platformStrategy: LocationStrategy = null;
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setInitialPath(url: string) { this._history[this._historyIndex].path = url; }
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setBaseHref(url: string) { this._baseHref = url; }
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path(): string { return this._history[this._historyIndex].path; }
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isCurrentPathEqualTo(path: string, query: string = ''): boolean {
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const givenPath = path.endsWith('/') ? path.substring(0, path.length - 1) : path;
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const currPath =
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this.path().endsWith('/') ? this.path().substring(0, this.path().length - 1) : this.path();
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return currPath == givenPath + (query.length > 0 ? ('?' + query) : '');
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}
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simulateUrlPop(pathname: string) { this._subject.emit({'url': pathname, 'pop': true}); }
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simulateHashChange(pathname: string) {
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// Because we don't prevent the native event, the browser will independently update the path
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this.setInitialPath(pathname);
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this.urlChanges.push('hash: ' + pathname);
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this._subject.emit({'url': pathname, 'pop': true, 'type': 'hashchange'});
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}
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prepareExternalUrl(url: string): string {
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if (url.length > 0 && !url.startsWith('/')) {
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url = '/' + url;
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}
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return this._baseHref + url;
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}
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go(path: string, query: string = '') {
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path = this.prepareExternalUrl(path);
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if (this._historyIndex > 0) {
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this._history.splice(this._historyIndex + 1);
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}
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this._history.push(new LocationState(path, query));
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this._historyIndex = this._history.length - 1;
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const locationState = this._history[this._historyIndex - 1];
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if (locationState.path == path && locationState.query == query) {
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return;
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}
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const url = path + (query.length > 0 ? ('?' + query) : '');
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this.urlChanges.push(url);
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this._subject.emit({'url': url, 'pop': false});
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}
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replaceState(path: string, query: string = '') {
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path = this.prepareExternalUrl(path);
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const history = this._history[this._historyIndex];
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if (history.path == path && history.query == query) {
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return;
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}
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history.path = path;
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history.query = query;
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const url = path + (query.length > 0 ? ('?' + query) : '');
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this.urlChanges.push('replace: ' + url);
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}
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forward() {
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if (this._historyIndex < (this._history.length - 1)) {
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this._historyIndex++;
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this._subject.emit({'url': this.path(), 'pop': true});
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}
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}
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back() {
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if (this._historyIndex > 0) {
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this._historyIndex--;
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this._subject.emit({'url': this.path(), 'pop': true});
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}
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}
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subscribe(
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onNext: (value: any) => void, onThrow: (error: any) => void = null,
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onReturn: () => void = null): Object {
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return this._subject.subscribe({next: onNext, error: onThrow, complete: onReturn});
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}
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normalize(url: string): string { return null; }
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}
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class LocationState {
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path: string;
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query: string;
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constructor(path: string, query: string) {
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this.path = path;
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this.query = query;
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}
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}
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