94 lines
2.7 KiB
TypeScript
94 lines
2.7 KiB
TypeScript
import {Injectable, Inject, Optional} from 'angular2/core';
|
|
import {
|
|
LocationStrategy,
|
|
joinWithSlash,
|
|
APP_BASE_HREF,
|
|
normalizeQueryParams
|
|
} from './location_strategy';
|
|
import {EventListener} from 'angular2/src/facade/browser';
|
|
import {isPresent} from 'angular2/src/facade/lang';
|
|
import {PlatformLocation} from './platform_location';
|
|
|
|
/**
|
|
* `HashLocationStrategy` is a {@link LocationStrategy} used to configure the
|
|
* {@link Location} service to represent its state in the
|
|
* [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)
|
|
* of the browser's URL.
|
|
*
|
|
* For instance, if you call `location.go('/foo')`, the browser's URL will become
|
|
* `example.com#/foo`.
|
|
*
|
|
* ### Example
|
|
*
|
|
* ```
|
|
* import {Component, provide} from 'angular2/angular2';
|
|
* import {
|
|
* ROUTER_DIRECTIVES,
|
|
* ROUTER_PROVIDERS,
|
|
* RouteConfig,
|
|
* Location,
|
|
* LocationStrategy,
|
|
* HashLocationStrategy
|
|
* } from 'angular2/router';
|
|
*
|
|
* @Component({directives: [ROUTER_DIRECTIVES]})
|
|
* @RouteConfig([
|
|
* {...},
|
|
* ])
|
|
* class AppCmp {
|
|
* constructor(location: Location) {
|
|
* location.go('/foo');
|
|
* }
|
|
* }
|
|
*
|
|
* bootstrap(AppCmp, [
|
|
* ROUTER_PROVIDERS,
|
|
* provide(LocationStrategy, {useClass: HashLocationStrategy})
|
|
* ]);
|
|
* ```
|
|
*/
|
|
@Injectable()
|
|
export class HashLocationStrategy extends LocationStrategy {
|
|
private _baseHref: string = '';
|
|
constructor(private _platformLocation: PlatformLocation,
|
|
@Optional() @Inject(APP_BASE_HREF) _baseHref?: string) {
|
|
super();
|
|
if (isPresent(_baseHref)) {
|
|
this._baseHref = _baseHref;
|
|
}
|
|
}
|
|
|
|
onPopState(fn: EventListener): void { this._platformLocation.onPopState(fn); }
|
|
|
|
getBaseHref(): string { return this._baseHref; }
|
|
|
|
path(): string {
|
|
// the hash value is always prefixed with a `#`
|
|
// and if it is empty then it will stay empty
|
|
var path = this._platformLocation.hash;
|
|
|
|
// Dart will complain if a call to substring is
|
|
// executed with a position value that extends the
|
|
// length of string.
|
|
return (path.length > 0 ? path.substring(1) : path) +
|
|
normalizeQueryParams(this._platformLocation.search);
|
|
}
|
|
|
|
prepareExternalUrl(internal: string): string {
|
|
var url = joinWithSlash(this._baseHref, internal);
|
|
return url.length > 0 ? ('#' + url) : url;
|
|
}
|
|
|
|
pushState(state: any, title: string, path: string, queryParams: string) {
|
|
var url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
|
|
if (url.length == 0) {
|
|
url = this._platformLocation.pathname;
|
|
}
|
|
this._platformLocation.pushState(state, title, url);
|
|
}
|
|
|
|
forward(): void { this._platformLocation.forward(); }
|
|
|
|
back(): void { this._platformLocation.back(); }
|
|
}
|