fixing the issue related to the duplicate of the webcam publishing wi…

…ndow (http://code.google.com/p/bigbluebutton/issues/detail?id=1229)

bigbluebutton-client/src/org/bigbluebutton/modules/videoconf/views/PublishWindow.mxml

@@ -68,7 +68,7 @@
 			// the auto-publishing until after the Viewers's window has loaded
 			// to receive the publishing events. Otherwise, the user joining next
 			// won't be able to view the webcam.
-			private var autoPublishTimer:Timer;
+			private var autoPublishTimer:Timer = null;
 			
 			// Timer used to enable the start publishing button, only after get
 			// any activity on the camera. It avoids the problem of publishing
@@ -234,6 +234,9 @@
 			private function startPublishing():void{
 				if (_camera == null) return;
 
+				if (autoPublishTimer != null)
+					autoPublishTimer.stop();
+
 				showWarning('bbb.video.publish.hint.publishing', true, "0xFFFF00");
 				
 				defaultWidth = originalWidth;

bigbluebutton-client/src/org/bigbluebutton/modules/videoconf/views/ToolbarButton.mxml

@@ -21,6 +21,7 @@
 --> 
 
 <mx:Button xmlns:mx="http://www.adobe.com/2006/mxml" icon="{camIcon}" 
+		   xmlns:mate="http://mate.asfusion.com/"
 		   click="openPublishWindow()" creationComplete="init()" 
 		   toolTip="{ResourceUtil.getInstance().getString('bbb.toolbar.video.toolTip')}"
 		   visible="{isPresenter}"
@@ -48,8 +49,6 @@
 			
 			private function openPublishWindow():void{
 				dispatchEvent(new OpenPublishWindowEvent());
-				this.enabled = false;
-				camIcon = images.webcam;
 			}
 			
 			public function show():void{
@@ -62,4 +61,6 @@
 			}
 		]]>
 	</mx:Script>
+
+	<mate:Listener type="{OpenPublishWindowEvent.OPEN_PUBLISH_WINDOW}" receive="enabled=false" />
 </mx:Button>