doubleClickHandlerRegistration.removeHandler();
doubleClickHandlerRegistration = null;
doubleClickJs = js.trim();
if(!doubleClickJs.isEmpty())
{
doubleClickHandlerRegistration = addDoubleClickHandler(new DoubleClickHandler() {
@Override
public void onDoubleClick(DoubleClickEvent event) {
VkStateHelper.getInstance().getEventHelper().executeEvent(doubleClickJs, event, true);
}
});