Re: Drag and drop... without moving mouse? -- SOLUTION?

FROM : Kevin Perry
DATE : Sat Jul 22 22:57:13 2006

OK, I was really confused, because I found that if I replaced my own 
view with an NSTextView it worked fine... what was the difference???

I'm still not exactly sure, but I found that if I call -[NSWindow 
nextEventMatchingMask:...] when I display the panel, my view gets 
draggingEntered: on mouse up. I'm guessing that's because 
nextEventMatchingMask:... runs the run loop, which causes the 
dragging IPC message to be received again.

Complicated... This should not be a problem for people creating their 
own NSView subclasses (especially since it seems the standard Cocoa 
views work correctly... why make it hard for us?)... Anyone think I 
should file a bug?

[kevin perry]

> Hi,
>
> In my program, I have a feature where initiating a drag and drop 
> and holding the dragged data over a certain part of the screen 
> brings up a panel (think spring-loaded folders in the Finder). I 
> want a view on this panel to be the drag destination. However, 
> because the panel ends up sliding under the mouse cursor, if I 
> don't move the mouse before letting it go and finishing the drag, 
> then the panel can never receive draggingEntered: and whatever was 
> under the panel ends up receiving the drag and drop... Is there a 
> way to make that panel receive the drag and drop in this case? (it 
> works in the Finder...)
>
> Thanks!
>
> [kevin perry]