I searched for answers for these two questions and did not find anything
pertinent:
1. I noticed that, on Snow Leopard, when the user clicks on a collection view
item, the item is selected, but it doesn't do this on Leopard. Instead, on
Leopard, the only way to select an item is to click and drag to select items. I
can confirm it's not just my application by using the SourceView sample under
Leopard. Normally I would work around this by overriding -mouseDown: and using
-frameForItemAtIndex: to figure out what the user clicked on, but that method
is only present in Snow Leopard. So has anyone figured out how to get
NSCollectionView's selection behavior on Snow Leopard to work on Leopard as
well?
2. I'm also wondering if anyone has been successful in doing file promise drags
with NSCollectionView in Snow Leopard, and if so, then what did you have to do
to get it to work? I'm doing this:
- (BOOL)collectionView:(NSCollectionView *)collectionView
writeItemsAtIndexes:(NSIndexSet *)indexes toPasteboard:(NSPasteboard *)pboard
{
[pboard addTypes:[NSArray arrayWithObject:NSFilesPromisePboardType]
owner:self];
[pboard setPropertyList:[NSArray arrayWithObjects:@"rtf", @"rtfd", nil]
forType:NSFilesPromisePboardType];
return YES;
}
If I look at the pasteboard in Pasteboard Inspector, I can see the file promise
pasteboard types being written to the pasteboard. However, the Finder will not
accept the drag. If I do the exact same thing in a table view
writeItemsAtIndexes:... method, then it works as expected. If I inspect its
pasteboard in Pasteboard Inspector, then it turns out to be identical to the
collection view's pasteboard.
Nick Zitzmann
<http://www.chronosnet.com/>
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