79472b77ca
This is part of ongoing work to make core platform-independent.
BREAKING CHANGE
All private exports from 'angular2/src/core/facade/{lang,collection,exception_handler}' should be replaced with 'angular2/src/facade/{lang,collection,exception_handler}'.
91 lines
2.5 KiB
TypeScript
91 lines
2.5 KiB
TypeScript
import {DOM} from 'angular2/src/core/dom/dom_adapter';
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import {Injectable} from 'angular2/angular2';
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import {LocationStrategy, normalizeQueryParams} from './location_strategy';
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import {EventListener, History, Location} from 'angular2/src/facade/browser';
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/**
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* `HashLocationStrategy` is a {@link LocationStrategy} used to configure the
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* {@link Location} service to represent its state in the
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* [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)
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* of the browser's URL.
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*
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* For instance, if you call `location.go('/foo')`, the browser's URL will become
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* `example.com#/foo`.
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*
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* ### Example
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*
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* ```
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* import {Component, provide} from 'angular2/angular2';
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* import {
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* ROUTER_DIRECTIVES,
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* ROUTER_PROVIDERS,
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* RouteConfig,
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* Location,
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* LocationStrategy,
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* HashLocationStrategy
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* } from 'angular2/router';
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*
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* @Component({directives: [ROUTER_DIRECTIVES]})
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* @RouteConfig([
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* {...},
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* ])
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* class AppCmp {
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* constructor(location: Location) {
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* location.go('/foo');
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* }
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* }
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*
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* bootstrap(AppCmp, [
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* ROUTER_PROVIDERS,
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* provide(LocationStrategy, {useClass: HashLocationStrategy})
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* ]);
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* ```
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*/
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@Injectable()
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export class HashLocationStrategy extends LocationStrategy {
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private _location: Location;
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private _history: History;
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constructor() {
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super();
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this._location = DOM.getLocation();
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this._history = DOM.getHistory();
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}
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onPopState(fn: EventListener): void {
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DOM.getGlobalEventTarget('window').addEventListener('popstate', fn, false);
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}
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getBaseHref(): string { return ''; }
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path(): string {
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// the hash value is always prefixed with a `#`
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// and if it is empty then it will stay empty
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var path = this._location.hash;
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// Dart will complain if a call to substring is
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// executed with a position value that extends the
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// length of string.
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return (path.length > 0 ? path.substring(1) : path) +
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normalizeQueryParams(this._location.search);
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}
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prepareExternalUrl(internal: string): string {
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return internal.length > 0 ? ('#' + internal) : internal;
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}
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pushState(state: any, title: string, path: string, queryParams: string) {
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var url = path + normalizeQueryParams(queryParams);
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if (url.length == 0) {
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url = this._location.pathname;
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} else {
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url = this.prepareExternalUrl(url);
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}
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this._history.pushState(state, title, url);
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}
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forward(): void { this._history.forward(); }
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back(): void { this._history.back(); }
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}
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