From a67f2314f997a785d01163498b231435cb9b4680 Mon Sep 17 00:00:00 2001
From: Brian Ford <btford@umich.edu>
Date: Mon, 15 Jun 2015 14:34:14 -0700
Subject: [PATCH] feat(router): add support for hash-based location

Closes #2555
---
 modules/angular2/router.ts                    |  1 +
 .../src/router/hash_location_strategy.ts      | 32 +++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 modules/angular2/src/router/hash_location_strategy.ts

diff --git a/modules/angular2/router.ts b/modules/angular2/router.ts
index 70a041e09b..fecc2a7f34 100644
--- a/modules/angular2/router.ts
+++ b/modules/angular2/router.ts
@@ -12,6 +12,7 @@ export {RouterLink} from './src/router/router_link';
 export {RouteParams} from './src/router/instruction';
 export {RouteRegistry} from './src/router/route_registry';
 export {LocationStrategy} from './src/router/location_strategy';
+export {HashLocationStrategy} from './src/router/hash_location_strategy';
 export {HTML5LocationStrategy} from './src/router/html5_location_strategy';
 export {Location, appBaseHrefToken} from './src/router/location';
 export {Pipeline} from './src/router/pipeline';
diff --git a/modules/angular2/src/router/hash_location_strategy.ts b/modules/angular2/src/router/hash_location_strategy.ts
new file mode 100644
index 0000000000..9d3540448b
--- /dev/null
+++ b/modules/angular2/src/router/hash_location_strategy.ts
@@ -0,0 +1,32 @@
+import {DOM} from 'angular2/src/dom/dom_adapter';
+import {Injectable} from 'angular2/di';
+import {LocationStrategy} from './location_strategy';
+import {EventListener, History, Location} from 'angular2/src/facade/browser';
+
+@Injectable()
+export class HashLocationStrategy extends LocationStrategy {
+  private _location: Location;
+  private _history: History;
+
+  constructor() {
+    super();
+    this._location = DOM.getLocation();
+    this._history = DOM.getHistory();
+  }
+
+  onPopState(fn: EventListener): void {
+    DOM.getGlobalEventTarget('window').addEventListener('popstate', fn, false);
+  }
+
+  getBaseHref(): string { return ''; }
+
+  path(): string { return this._location.hash; }
+
+  pushState(state: any, title: string, url: string) {
+    this._history.pushState(state, title, '#' + url);
+  }
+
+  forward(): void { this._history.forward(); }
+
+  back(): void { this._history.back(); }
+}