Hi Rahul,
A couple of options:
Option 1:
Extend TextBox and use the native DoubleClickEvent as follows:
import com.google.gwt.event.dom.client.DoubleClickEvent;
import com.google.gwt.event.dom.client.DoubleClickHandler;
import com.google.gwt.event.dom.client.HasDoubleClickHandlers;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.TextBox;
public class CustomTextBox extends TextBox implements
HasDoubleClickHandlers {
public CustomTextBox() {
super();
}
@Override
public HandlerRegistration addDoubleClickHandler(final
DoubleClickHandler handler) {
return addDomHandler(handler, DoubleClickEvent.getType());
}
}
To to test your requirement:
final CustomTextBox textBox = new CustomTextBox();
textBox.addDoubleClickHandler(new DoubleClickHandler() {
@Override
public void onDoubleClick(final DoubleClickEvent event) {
textBox.setText("");
}
});
Option 2:
Increment a clickCount variable inside a ClickHandler. Start a Timer
on the first click which resets the clickCount after a certain
timeout. If the click count is >= 2 on any click then you have a
double click. Obviously this is not as good as Option 1 since you have
to use your own double click timeout which may be different to the
user's operating system setting.
Hope this helps.
Cheers,
Paul.
On Jul 26, 2:39 pm, Hussain Cutpiecewala <[email protected]>
wrote:
> HI Rahul..
> This is hussain.
> can you tell me whether you are looking for solution in web development or
> desktop development?
>
> On Fri, Jul 24, 2009 at 8:28 PM, Rahul <[email protected]> wrote:
>
> > Hi
> > i would like the functionality that when a user double clicks on the
> > textbox, the existing text on the textbox deletes itself
>
> > how should i proceed to do that so ?
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