adding UiLocationStrategy

Author: ocombe

src/ng2/services.ts

@@ -0,0 +1,43 @@
+import {Injectable} from "angular2/core";
+import {PlatformLocation, LocationStrategy, PathLocationStrategy} from "angular2/router";
+import {services} from "../common/coreservices";
+import {isDefined} from "../common/predicates";
+
+@Injectable()
+export class UiLocationStrategy {
+  private hashPrefix: string = '!';
+
+  constructor(private locationStrategy: LocationStrategy, private _platformLocation: PlatformLocation) {
+  }
+  
+  init() {
+    let loc = <any> services.location;
+
+    loc.hash = () => this._platformLocation.hash;
+    loc.path = this.locationStrategy.path;
+    loc.search = () => location.search;
+    loc.url = (url) => {
+      if(url) {
+        location.hash = url;
+      }
+      return loc.path();
+    };
+    loc.replace = this.locationStrategy.replaceState;
+    // should we use location.onPopState instead ? https://github.com/angular/angular/blob/d272f96e23f379e1b565435b3af010138e710ab9/modules/angular2/src/router/location/hash_location_strategy.ts#L61
+    loc.onChange = this._platformLocation.onHashChange;
+
+    let locCfg = <any> services.locationConfig;
+
+    locCfg.port = () => location.port;
+    locCfg.protocol = () => location.protocol;
+    locCfg.host = () => location.host;
+    locCfg.baseHref = this.locationStrategy.getBaseHref;
+    locCfg.html5Mode = () => this.locationStrategy instanceof PathLocationStrategy; // does it work ?
+    locCfg.hashPrefix = (newprefix: string): string => {
+      if(isDefined(newprefix)) {
+        this.hashPrefix = newprefix;
+      }
+      return this.hashPrefix;
+    };
+  }
+}