Re: NSOutlineView drag and drop problem
Re: NSOutlineView drag and drop problem
- Subject: Re: NSOutlineView drag and drop problem
- From: Jens Alfke <email@hidden>
- Date: Thu, 10 Jun 2010 11:12:25 -0700
On Jun 9, 2010, at 11:12 PM, Graham Cox wrote:
> In –outlineView:acceptDrop:item:childIndex: I can work out much the same set of conditions as above and mostly do the right thing, but since a move or a copy is equally likely, I need a way to determine what the last drag operation returned during validation actually was. There doesn't seem to be a way to do this by requesting it from any of the parameters passed to that method.
Well, since acceptDrop takes the same parameters as validateDrop, it seems you should be able to work out the same operation that validateDrop arrived at. I often end up writing a subroutine that takes the dragging info and items and works out the operation and other useful stuff, and then have both of those methods call it.
—Jens
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