GWT: PushButton is not removing hovering if the click opens dialog - events

Question

I've got a simple GWT PushButton which opens some dialog by click. The CSS styles are written in such a way that onHovering changes the appearance of the button.
The problem starts when I open some dialog by clicking on this button and close it. The onHovering styles remain!
This happens because in the CustomButtom which is the parent of PushButton there is a code which removes the hovering only when MouseOut event occurs. The problem is that if you open dialog with some dark semi-transparent screen it never occurs. The corresponding event is not issued and the button remains in onHovered state.
I try to fix this by firing this event manually. Fortunately, when the user closes that dialog I can catch onBlur event and try to do something in that moment. I try to create OnMouseOut event manually:
#Override
public void onBrowserEvent(Event event) {
int type = DOM.eventGetType(event);
if (type == Event.ONBLUR)
{
NativeEvent evt2 = Document.get().createMouseOutEvent(1, 0, 0, 0, 0, false, false, false, false, NativeEvent.BUTTON_LEFT, MyPushButton.this.getElement());
MyPushButton.this.getElement().dispatchEvent(evt2);
}
logger.info(event.getType());
super.onBrowserEvent(event);
}
... but for some reasons this code never sends an event. New MouseOut event is not logged in console and the onHovering styles are not changed. No exceptions are thrown.
Why I cannot fire the event?
Is there other ways to solve this issue?
GWT 2.5.1

Answer 1

This is a known issue: https://code.google.com/p/google-web-toolkit/issues/detail?id=2228
Actually, there are several issues with custom buttons, and you're encouraged to use Button (or SubmitButton or ResetButton) and CSS if possible; or maybe TextButton (or a custom cell-based ButtonBase subclass).
ToggleButton might be an exception as it has no real equivalent, other than a checkbox.

Answer 2

Finally I've made it working. Please notice Thomas Broyer's answer which is more broad.
#Override
/**
* In case onClick opens dialog, mouseOutEvent is not issued, thus preventing the button
* from removing the onHovering styles. Firing that event manually onBlur.
*/
public void onBrowserEvent(Event event)
{
if (DOM.eventGetType(event) == Event.ONBLUR)
{
NativeEvent mouseOutEvent = Document.get().createMouseOutEvent(1, 0, 0, 0, 0, false, false, false, false, NativeEvent.BUTTON_LEFT, getElement().getParentElement());
getElement().dispatchEvent(mouseOutEvent);
super.onBrowserEvent(Event.as(mouseOutEvent));
}
super.onBrowserEvent(event);
}