I have two JFileChoosers to which I've attached custom TransferHandlers. I'd like to allow the user to drag from one file chooser to the other, but not from one chooser to itself. I can't find anywhere in the api to find the source of a drag, so I'm not sure that this can be done.
I can disallow drops completely, or allow drops in either, but not only from one to the other.
Any suggestions would be greatly appreciated.