final int top = update.getInt(PROPERTY.POPUP_POSITION_TOP);
popup.setPopupPosition(left, top);
} else if (update.containsKey(PROPERTY.POPUP_DRAGGABLE)) {
final boolean draggable = update.containsKey(PROPERTY.POPUP_DRAGGABLE);
if (draggable) {
popup.addDomHandler(this, MouseDownEvent.getType());
popup.addDomHandler(this, MouseUpEvent.getType());
popup.addDomHandler(this, MouseMoveEvent.getType());
}
} else {
super.update(update, uiService);