On Monday, January 31, 2005, at 08:08AM, Nick Zitzmann <email@hidden> wrote:
>
>On Jan 31, 2005, at 8:29 AM, David Kocher wrote:
>
>> While searching for this problem in the archives I also found the
>> discussion about the 'frozen' message queue problem described in this
>> [ http://www.cocoabuilder.com/archive/message/cocoa/2003/5/15/81424 ]
>> thread which I can't solve proberly as well because of the slideback
>> 'table row image' drawn when returning YES from
>> tableViewWriteRowsToPasteboard:. Is anyone out there who knows a
>> solution for this by now?
>
>The only solution for the message queue freeze problem that does not
>involve using private APIs is to subclass NSTableView, override
>-mouseDown:, and rewrite almost all of the functionality of the method.
>Which means it'll have to handle selecting rows and sending single and
>double-click actions. This breaks NSTableView's periodic event
>handling, so -mouseDragged: will be called when the mouse is dragged,
>and there you can begin the file-promise drag. If you begin a
>file-promise drag in -mouseDragged:, then the message queue will not
>freeze.
>
>Warning: This will probably also break the NSTableView -clickedRow
>method.
We've all filed bugs on this, right? Overriding -mouseDown: for NSTableView is insane if you want to preserve all of the proper selection/dragging behavior.
>
>Someone else in this group also figured out a way of doing this that
>doesn't involve overriding -mouseDown:, but does involve dependence on
>private AppKit APIs. I don't recommend doing this, but the message
>should be in the archives.
I did it without using private API or overriding -mouseDown:, so it can be done (the basic solution I used should be in the archives as well). It's not what the documentation recommends, but at least it works.
--
Adam
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