60af19f0e1
Closes #3573 BREAKING CHANGE Rename: - `appComponentTypeToken` => `APP_COMPONENT` - `coreDirectives` => `CORE_DIRECTIVES` - `formDirectives` => `FORM_DIRECTIVES` - `formInjectables` => `FORM_BINDINGS` - `httpInjectables` => `HTTP_BINDINGS` - `jsonpInjectables` => `JSONP_BINDINGS` - `PROTO_CHANGE_DETECTOR_KEY` => `PROTO_CHANGE_DETECTOR` - `appComponentRefPromiseToken` => `APP_COMPONENT_REF_PROMISE` - `appComponentTypeToken` => `APP_COMPONENT` - `undefinedValue` => `UNDEFINED` - `formDirectives` => `FORM_DIRECTIVES` - `DOCUMENT_TOKEN` => `DOCUMENT` - `APP_ID_TOKEN` => `APP_ID` - `MAX_IN_MEMORY_ELEMENTS_PER_TEMPLATE_TOKEN` => `MAX_IN_MEMORY_ELEMENTS_PER_TEMPLATE` - `appBaseHrefToken` => `APP_BASE_HREF`
99 lines
3.0 KiB
TypeScript
99 lines
3.0 KiB
TypeScript
import {LocationStrategy} from './location_strategy';
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import {StringWrapper, isPresent, CONST_EXPR} from 'angular2/src/facade/lang';
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import {EventEmitter, ObservableWrapper} from 'angular2/src/facade/async';
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import {BaseException, isBlank} from 'angular2/src/facade/lang';
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import {OpaqueToken, Injectable, Optional, Inject} from 'angular2/di';
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export const APP_BASE_HREF: OpaqueToken = CONST_EXPR(new OpaqueToken('appBaseHref'));
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/**
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* This is the service that an application developer will directly interact with.
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*
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* Responsible for normalizing the URL against the application's base href.
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* A normalized URL is absolute from the URL host, includes the application's base href, and has no
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* trailing slash:
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* - `/my/app/user/123` is normalized
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* - `my/app/user/123` **is not** normalized
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* - `/my/app/user/123/` **is not** normalized
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*/
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@Injectable()
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export class Location {
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private _subject: EventEmitter = new EventEmitter();
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private _baseHref: string;
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constructor(public _platformStrategy: LocationStrategy,
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@Optional() @Inject(APP_BASE_HREF) href?: string) {
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var browserBaseHref = isPresent(href) ? href : this._platformStrategy.getBaseHref();
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if (isBlank(browserBaseHref)) {
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throw new BaseException(
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`No base href set. Either provide a binding to "appBaseHrefToken" or add a base element.`);
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}
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this._baseHref = stripTrailingSlash(stripIndexHtml(browserBaseHref));
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this._platformStrategy.onPopState((_) => this._onPopState(_));
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}
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_onPopState(_): void {
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ObservableWrapper.callNext(this._subject, {'url': this.path(), 'pop': true});
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}
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path(): string { return this.normalize(this._platformStrategy.path()); }
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normalize(url: string): string {
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return stripTrailingSlash(this._stripBaseHref(stripIndexHtml(url)));
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}
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normalizeAbsolutely(url: string): string {
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if (!url.startsWith('/')) {
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url = '/' + url;
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}
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return stripTrailingSlash(this._addBaseHref(url));
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}
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_stripBaseHref(url: string): string {
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if (this._baseHref.length > 0 && url.startsWith(this._baseHref)) {
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return url.substring(this._baseHref.length);
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}
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return url;
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}
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_addBaseHref(url: string): string {
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if (!url.startsWith(this._baseHref)) {
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return this._baseHref + url;
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}
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return url;
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}
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go(url: string): void {
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var finalUrl = this.normalizeAbsolutely(url);
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this._platformStrategy.pushState(null, '', finalUrl);
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}
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forward(): void { this._platformStrategy.forward(); }
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back(): void { this._platformStrategy.back(); }
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subscribe(onNext: (value: any) => void, onThrow: (exception: any) => void = null,
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onReturn: () => void = null): void {
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ObservableWrapper.subscribe(this._subject, onNext, onThrow, onReturn);
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}
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}
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function stripIndexHtml(url: string): string {
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if (/\/index.html$/g.test(url)) {
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// '/index.html'.length == 11
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return url.substring(0, url.length - 11);
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}
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return url;
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}
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function stripTrailingSlash(url: string): string {
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if (/\/$/g.test(url)) {
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url = url.substring(0, url.length - 1);
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}
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return url;
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}
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