/**
* Adds a {@link com.google.gwt.event.dom.client.FocusEvent} handler.
*
* @param handler the focus handler
* @return {@link com.google.gwt.event.shared.HandlerRegistration} used to remove this handler
*/
@Override
public HandlerRegistration addFocusHandler(FocusHandler handler) {
return impl.addFocusHandler(handler);
}
