Hi Peter, On Mar 24, 2010, at 11:13 PM, Peter Ammon wrote: > Yes, this is a known problem on Leopard. The issue is that when NSToolbar > shows the customization palette, well, a view can't be in the toolbar and the > customization palette simultaneously, so NSToolbar "copies" the popup via > NSKeyedArchiver. Unfortunately, NSMenu's encodeWithCoder: method encodes its > delegate unconditionally, and if the delegate doesn't implement NSCoding, you > get an exception. > > In SnowLeopard, NSToolbar was revamped to render the views into images and > show the images - not the views - in the customization palette. So NSToolbar > in SnowLeopard no longer "copies" views, which is why the problem does not > reproduce. > > I think the easiest workaround is to implement NSCoding on your NSMenu > delegate. The delegate doesn't have to do a very good job encoding itself, > because the delegate will not actually be used in the customization palette. > In fact, you may be able to get away with implementing > replacementObjectForCoder: on your delegate to just return nil.
Thanks a lot for the detailed explanation. Something else must be playing into this because my delegate is an NSWindowController subclass which already conforms to the NSCoding protocol. A second instance actually gets created during the customizer setup, but it's dealloc'd before the crash happens. Regards Markus -- __________________________________________ Markus Spoettl
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