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mouseDragged not working in NSSplitView subview

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mouseDragged not working in NSSplitView subview

Subject: mouseDragged not working in NSSplitView subview
From: "Adam R. Maxwell" <email@hidden>
Date: Sat, 8 Sep 2007 17:28:12 -0700

I have an NSView subclass that implements mouseDragged: to initiate a promised file drag, and it works quite well as a standalone view. If I make it a subview of an NSSplitView, my mouseDragged: method is no longer called, though.

I used poseAsClass: to override NSSplitView's mouseDown: and only call super's implementation when it actually gets a click on a divider rect, and that works (my mouseDragged: method is called). Obviously subclassing would be preferable to posing.

I could run a while(1) loop in mouseDown: and get events myself, but that solution isn't as aesthetically pleasing to me and it seems to screw up event handling in cases like mine. Is that really the right thing to do? Sketch does it, and apparently NSSplitView as well (and Apple's DraggableScrollView example, IIRC).

thanks,
Adam
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