fix(browser): patch Window when EventTarget is missing. (#368)

In browsers without EventTarget, window.addEventListener() is not patched.

Fixes #367.

Author: alxhub

lib/browser/event-target.ts

@@ -1,7 +1,7 @@
 import {patchEventTargetMethods} from '../common/utils';
 
 const WTF_ISSUE_555 = 'Anchor,Area,Audio,BR,Base,BaseFont,Body,Button,Canvas,Content,DList,Directory,Div,Embed,FieldSet,Font,Form,Frame,FrameSet,HR,Head,Heading,Html,IFrame,Image,Input,Keygen,LI,Label,Legend,Link,Map,Marquee,Media,Menu,Meta,Meter,Mod,OList,Object,OptGroup,Option,Output,Paragraph,Pre,Progress,Quote,Script,Select,Source,Span,Style,TableCaption,TableCell,TableCol,Table,TableRow,TableSection,TextArea,Title,Track,UList,Unknown,Video';
-const NO_EVENT_TARGET = 'ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex'.split(',');
+const NO_EVENT_TARGET = 'ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Window,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex'.split(',');
 const EVENT_TARGET = 'EventTarget';
 
 export function eventTargetPatch(_global) {

test/browser/browser.spec.ts

@@ -1,3 +1,9 @@
+import {ifEnvSupports} from '../test-util';
+
+function windowPrototype() {
+  return !!(global['Window'] && global['Window'].prototype);
+}
+
 describe('Zone', function () {
   var rootZone = Zone.current;
 
@@ -72,6 +78,28 @@ describe('Zone', function () {
         expect(eventListenerSpy).toHaveBeenCalled();
       });
 
+      it('should support addEventListener on window', ifEnvSupports(windowPrototype, function () {
+        var hookSpy = jasmine.createSpy('hook');
+        var eventListenerSpy = jasmine.createSpy('eventListener');
+        var zone = rootZone.fork({
+          name: 'spy',
+          onScheduleTask: (parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone,
+                                task: Task): any => {
+            hookSpy();
+            return parentZoneDelegate.scheduleTask(targetZone, task);
+          }
+        });
+
+        zone.run(function() {
+          window.addEventListener('click', eventListenerSpy);
+        });
+        
+        window.dispatchEvent(clickEvent);
+
+        expect(hookSpy).toHaveBeenCalled();
+        expect(eventListenerSpy).toHaveBeenCalled();
+      }));
+
       it('should support removeEventListener', function () {
         var hookSpy = jasmine.createSpy('hook');
         var eventListenerSpy = jasmine.createSpy('eventListener');