Hi List,I've asked this questions a couple of months back but never got a response. I'm bringing this up again in the hope that meanwhile someone else has figured out a workaround for the problem. Which is this:
NSCollectionView (new in 10.5) is broken with respect to the window keyloop (the keyloop is what cycles the input focus from control to control when pressing TAB). Apple's NSCollectionView demo shows the issue:
http://developer.apple.com/samplecode/IconCollection/index.htmlWhat happens is that the view (or contained sub-views) can get the focus by means of TAB-ing, but you can't tab out of a collection view. Never ever.
I've played with this quite some time now and I still don't have a good solution. The TAB keys do not seem to get processed correctly by the collection views. They are interpreted (presumably via - interpretKeyEvents:) and cause NSResponder's -insertTab: and - insertBacktab: to be called on the collection view. Which I think is totally useless. All it does is causing a beep because NSCollectionView doesn't implement those methods.
I'm wondering how I can repair this properly. I've a partially working thing by overwriting NSCollectionView's -keyDown: and handling TABs myself, but it has a number of issues: 1) I need to call the window's - recalculateKeyViewLoop: method manually after the items change. For some reason it doesn't work automatically even if the window's - autorecalculatesKeyViewLoop is set to YES (documentation says that it's updated automatically, well it's not). 2) It doesn't work quite as expected as all individual views inside the collection view are now cycled through as well. There are probably other issues I'm not aware of but those are show stoppers anyway.
For some strange reason CTRL-TAB does work, I assume it causes some completely different processing to take place that doesn't rely on the NSView keyloop setup. Can anyone shed some light on this mystery?
Regards Markus -- __________________________________________ Markus Spoettl
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