I would like to handle drop to WebView to not load the  dropped object, but
to perform some customized action.
However, I ran into similar issues as described here:

http://lists.apple.com/archives/webkitsdk-dev/2005/May/msg00046.html

Basically, for these two callbacks in WebUIDelegate,

   - A. – 
webView:dragDestinationActionMaskForDraggingInfo:<http://developer.apple.com/library/mac/documentation/Cocoa/Reference/WebKit/Protocols/WebUIDelegate_Protocol/Reference/Reference.html#//apple_ref/occ/instm/NSObject/webView:dragDestinationActionMaskForDraggingInfo:>
   -
   - B. – 
webView:willPerformDragDestinationAction:forDraggingInfo:<http://developer.apple.com/library/mac/documentation/Cocoa/Reference/WebKit/Protocols/WebUIDelegate_Protocol/Reference/Reference.html#//apple_ref/occ/instm/NSObject/webView:willPerformDragDestinationAction:forDraggingInfo:>
   -

My question is: How can I return something other
than WebDragDestinationActionLoad in A and still have a chance to process
the data in method B?

Currently, the issues are:


   - If I return WebDragDestinationActionDHTML, B is never called.
   - If  return WebDragDestinationActionLoad, B is called, but I do not want
   to load the dropped resource. I want to customize it by extracting data and
   update the current resource in WebView.
   - Another option is to do the custom data extraction in A and
    return WebDragDestinationActionNone. But the callback A is invoked multiple
   times during a drag/drop operation, I need to only process it once at the
   last callback.  i.e., the correct place to do it is in callback method B.

Any solutions?

Thanks,
-- 
W. Shao
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