@Override
public void onBrowserEvent(Event event) {
    if (!suppressKeyupTabEvent) {
        super.onBrowserEvent(event);
        return;
    }

    int type = DOM.eventGetType(event);
    if (type == Event.ONKEYUP && event.getKeyCode() == KeyCodes.KEY_TAB) {
        //Dont delegate event - used to prevent AasSuggestBox to show suggestions when you tab into the field.
        return;
    }
    super.onBrowserEvent(event);
}