Don't know, if it's the correct way, but for me (and extending
ListBox) this was the only thing I had to do to make DoubleClick-
handling work:
...extends ListBox implements HasDoubleClickHandlers...
public HandlerRegistration addDoubleClickHandler(DoubleClickHandler
handler) {
return addDomHandler(handler, DoubleClickEvent.getType());
}
as far as I understood HandlerManager is already an instance in
Widget, so you don't need to create your own, when you extend an
existing widget.
On 4 Jun., 08:00, nina <juliadot...@gmail.com> wrote:
> Could I please get some clarification on how to use the double click
> event handling? The classes are there
> (e.g.http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/g...)
> but don't seem to be implemented anywhere.
>
> I would like to add double click handling to an Image, could someone
> please give me some example snippet of code on how to do this? I've
> tried simple things like extending Image and implementing
> HasDoubleClickHandlers, e.g.
>
> private class CommandButton extends Image implements
> DoubleClickHandler, HasDoubleClickHandlers {
>
> private HandlerManager clickHandlers = new
> HandlerManager(this);
>
> public CommandButton(){
> super("images/favicon-2.png");
> addDoubleClickHandler(this);
> }
>
> @Override
> public void onDoubleClick(DoubleClickEvent event) {
> Log.debug("doubleclicked command button");
> }
>
> @Override
> public HandlerRegistration
> addDoubleClickHandler(DoubleClickHandler
> handler) {
> return
> clickHandlers.addHandler(DoubleClickEvent.getType(),
> handler);
> }
>
> @Override
> public void fireEvent(GwtEvent<?> event){
> handlers.fireEvent(event);
> }
> }
>
> but of course this doesn't handle double click events.
>
> Thanks!
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