On Nov 5, 2017, at 11:53:07, Jim Crate <j...@quevivadev.com> wrote: > > If you really wanted it, it seems like it would be relatively simple to track > the last item selected, and if shift is down in > > collectionView:didSelectItemsAtIndexPaths: > > then add all items between to the selection. Is there something I’m missing > that makes that unworkable? I’m not sure why I didn’t try that before, but > since nobody missed shift-selecting I never revisited it.
It's not that simple. There are many things that must happen to correctly do shift-extend and shift-shrink. The anchor must be remembered and cleared as the result of many different operations. Shift-arrowKeys must be handled in the same way, extending or shrinking the selection around the anchor. Trust me, I've put in hours and hours with a combination of an NSCollectionView subclass and a delegate. There are just too many things happening behind the scenes that Apple doesn't expose. The last time I worked on it, I was getting close, but still had walls to break down. -- Steve Mills Drummer, Mac geek _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
