NSPopover gets corrupted if -popoverShouldClose: returns NO when detaching

Originator:me
Number:rdar://13799357 Date Originated:02-May-2013 07:08 PM
Status:Open Resolved:
Product:OS X Product Version:10.8.3 (12D78)
Classification:Serious Bug Reproducible:Always
 
02-May-2013 07:08 PM Jonathon Mah:
When an NSPopover is detached to a window, it calls -popoverWillClose: on its delegate, passing the notification with the "detach to window" reason. But then it calls -popoverShouldClose:, and if the delegate happens to return NO (because that method has different criteria), the popover's window remains on-screen in a broken state. -popoverShouldClose: should NOT be called in that case, because the popover has already decided that it will close (it has sent and posted WillClose).

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