Subclass WebView and override the standard NSDraggingDestination methods. On 28 Oct 2010, at 00:19, Wayne Shao wrote:
> 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 > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/cocoadev%40mikeabdullah.net > > This email sent to cocoa...@mikeabdullah.net _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
