register KeyDownHandler on VerticalPanel

[Yahya Elyasse]

hello,
I have a gwt VerticalPanel class that i need to handel KeyDown events for it.
the method i used to implement keyboard handler in my class is:
i add :

this.sinkEvents(Event.ONKEYDOWN);

to constructor
then i override method onBrowserEvent() to handle key down event.

/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * com.google.gwt.user.client.ui.Widget#onBrowserEvent(com.google.gwt.user
	 * .client.Event)
	 */
	@Override
	public void onBrowserEvent(Event event) {
		// TODO Auto-generated method stub
		super.onBrowserEvent(event);
		int type = DOM.eventGetType(event);
		switch (type) {
		case Event.ONKEYDOWN:
                        //call method to handle this keydown event
			onKeyDownEvent(event);
			break;
		default:
			return;

		}
	}

however this method doesn’t work for this VerticalPanel class which extends a VerticalPanel.no KeyDown Event is fired when i press a key!

there are specific gwt widgets that support KeyDownHandler like Button etc..VerticalPanel is not one of them..so we need a work around to register a KeyDownHandler on a class extending VerticalPanel.
can you suggest an idea or hint?
thanks

thanks

[Suhas Bilaye]

Hi,

You need to implement the HasKeyDownHandlers interface in order to add the key down handler capability to your vertical panel.

[Yahya Elyasse]

Suhas Bilaye wrote:Hi,

You need to implement the HasKeyDownHandlers interface in order to add the key down handler capability to your vertical panel.

yes I solved it by wrapping VerticalPanel inside a FocusPane. gwt Focuspanel support most events handlers including key events.
thanks for the reply.