@Override
 public void onCloseEvent() {
   if (SWFWrapper.INSTANCE.isOpened()) {
     SWFWrapper.INSTANCE.unload();
     return;
   }
   final MessageBoxControler messageBoxControler =
       Xulor.getInstance()
           .msgBox(
               WakfuTranslator.getInstance().getString("question.quit"),
               WakfuMessageBoxConstants.getMessageBoxIconUrl(0),
               2073L,
               102,
               1);
   messageBoxControler.addEventListener(
       new MessageBoxEventListener() {
         @Override
         public void messageBoxClosed(final int type, final String userEntry) {
           if (type == 8) {
             WakfuApplicationUI.this.onCloseEvent();
           }
         }
       });
 }