Delete confirmation for calendar events

[Jennifer]

How can you make a working deletion confirmation? The following code obviously won't (and doesn't) work, because the callback to the SC.ask is asynchronous and the event has already been deleted by that point.

      calendar.addEventRemoveClickHandler(new EventRemoveClickHandler() {
         public void onEventRemoveClick(final CalendarEventRemoveClick calendarEventRemoveClick) {
            SC.ask("Are you sure you want to delete this event?", new BooleanCallback() {
               public void execute(Boolean aBoolean) {
                  if (!aBoolean) {
                     // doesn't work - asynch
                     calendarEventRemoveClick.cancel();
                  }
               }
            });
         }
      });

[sjivan]

Try this :

final Calendar calendar = new Calendar();
...
calendar.addEventRemoveClickHandler(new EventRemoveClickHandler() {
    public void onEventRemoveClick(final CalendarEventRemoveClick calendarEventRemoveClick) {

        final CalendarEvent event = calendarEventRemoveClick.getEvent();
        //always cancel the remove event and handle actual 
        //calendar event removal in the confirmation callback
        calendarEventRemoveClick.cancel();

        SC.ask("Are you sure you want to delete this event?", new BooleanCallback() {
            public void execute(Boolean aBoolean) {
                if (aBoolean) {
                    calendar.removeEvent(event);
                }
            }
        });
    }
});

Sanjiv