Re: Stillborn dragstart event

Some progress on this native drag-n-drop issue:

Drag-n-drop working only once, then failing on subsequent tries, only fails due to a dead event when you delegate to your UiRenderer (native DnD, in DevMode, using GWT 2.5.1, in an AbstractCell).

Fails after first time:

@Override  public void onBrowserEvent( Context context, Element parent, TaskProxy value,      NativeEvent event, ValueUpdater<TaskProxy> valueUpdater ) {      renderer.onBrowserEvent( this, event, parent, context );  }    @UiHandler("root")  void onDragStart( DragStartEvent event, Element parent, Context context ) {      event.setData( "text", String.valueOf( context.getIndex() ) );      event.getDataTransfer().setDragImage( parent, 25, 15 );  }

If you replace the delegation to 'renderer' with code that sets the data to transfer directly on the NativeEvent, everything works great:

@Override  public void onBrowserEvent( Context context, Element parent, TaskProxy value,      NativeEvent event, ValueUpdater<TaskProxy> valueUpdater ) {      // TODO - Add check to ensure event came from "root."      if ( DRAGSTART.equals( event.getType() ) ) {          DataTransfer dataTransfer = event.getDataTransfer();          dataTransfer.setData( "text", String.valueOf( context.getIndex() ) );          dataTransfer.setDragImage( parent, 25, 15 );      }  }

I only found out after getting it working, that this is how DesktopTaskEditView originally worked before UiRenderer came along:

https://code.google.com/p/google-web-toolkit/source/browse/trunk/samples/mobilewebapp/src/main/com/google/gwt/sample/mobilewebapp/client/desktop/DesktopTaskEditView.java?spec=svn10138&r=10138

Enrique

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