Re: mouse pointer for drag copy
Re: mouse pointer for drag copy
- Subject: Re: mouse pointer for drag copy
- From: Adam Maxwell <email@hidden>
- Date: Thu, 29 Jul 2004 15:44:23 -0500
On Jul 29, 2004, at 15:34, Nick Zitzmann wrote:
On Jul 29, 2004, at 1:48 PM, Adam Maxwell wrote:
Incidentally, I take back what I said earlier; sending an array of
multiple types to the Finder caused my app to segfault on quit
That's due to a bug in Mac OS X 10.3 where, if you perform a
file-promise drag with multiple files at once, then the AppKit
deallocates the NSFilePromiseDragSource private class too early,
causing the app to crash when the AppKit tries to re-release the class
on termination. At least that's what I observed by watching the whole
process in GDB.
I filed a bug report, and apparently it was a known bug.
AFAIK there is only one workaround, and it is to add this to your
application's source:
[...]
Looks like you've been down this road! I might give that a try, thanks.
I also just re-introduced my bug where the files won't copy until I
click the mouse in the main window. In my tableview subclass, I have
this (suggested in the drag-and-drop documentation):
- (NSArray *)namesOfPromisedFilesDroppedAtDestination:(NSURL *)url{
NSArray *array = [NSArray arrayWithArray:[[self delegate]
namesOfSelectedFiles]];
// do this after a delay so we don't block the array receiver
[[self delegate] performSelector:@selector(copyDraggedFilesToURL:)
withObject:url
afterDelay:0.01];
// [[self delegate] copyDraggedFilesToURL:url];
return array;
}
setting a delay of 0.1 causes the program to stall, for whatever
reason. If I don't use the delay, it works fine, but the Finder is
useless until the copy completes. I think I'm going to comment the
code so I don't mess with the delay again...
--
Adam
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