Hi,
Based on an event, i invoke a long running task.
Before the task starts, i show a pop up to the user and when the task
finishes, the pop up is hide.
Code:
final PopupPanel pp = HotelClientUtil.getUpdatingPopup();
pp.center();
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
If I remember correctly PopupPanel also uses a deferred command to
reposition itself to the center and then reveal itself. So the browser may
not have enough time to show it before your blocking task runs because both
deferred commands are executed right after each other.
The best thing you
