dragging to desktop
dragging to desktop
- Subject: dragging to desktop
- From: Torsten Curdt <email@hidden>
- Date: Thu, 01 Dec 2011 16:19:22 +0100
I have a NSImageView and the user should be able to drag from it onto
the Finder which will then create a file. While I found this in the
archives
http://www.cocoabuilder.com/archive/cocoa/43556-drag-and-drop-onto-the-desktop.html
the docs and some other posts on the internetz suggest to use a "HFS
Promise Drag" instead
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/DragandDrop/Tasks/DraggingFiles.html#//apple_ref/doc/uid/20001288-CEGJFDFG
http://speirs.org/blog/2009/12/5/hfs-promise-drags-from-ikimagebrowserview.html
So on a mouse down I am now calling
[self dragPromisedFilesOfTypes:[NSArray arrayWithObject:@"pdf"]
fromRect:imageLocation
source:self
slideBack:YES
event:theEvent];
which initiates the drag session. When I drop it onto the Finder
namesOfPromisedFilesDroppedAtDestination: gets called.
Now while I could create the file in
namesOfPromisedFilesDroppedAtDestination: I am not sure whether that
is the correct place. The docs state "After a drag operation is
dropped, the dragging destination receives a performDragOperation:
message." but I don't see that method getting called at all.
Where is the correct place to create the files for the drop destination?
And will this also work when sandbox'ed?
cheers,
Torsten
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