GTK: implement extension bookmark manager drag api....

chrome/browser/cocoa/web_drop_target.mm

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/cocoa/web_drop_target.h"
 
 #include "base/sys_string_conversions.h"
+#include "chrome/browser/bookmarks/bookmark_drag_data.h"
 #include "chrome/browser/bookmarks/bookmark_pasteboard_helper_mac.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #import "third_party/mozilla/include/NSPasteboard+Utils.h"
 #include "webkit/glue/webdropdata.h"
 #include "webkit/glue/window_open_disposition.h"
 
 using WebKit::WebDragOperationsMask;
 
 @implementation WebDropTarget
@@ skipping 57 matching lines @@
 
   if ([self onlyAllowsNavigation]) {
     if ([[info draggingPasteboard] containsURLData])
       return NSDragOperationCopy;
     return NSDragOperationNone;
   }
 
   // If the tab is showing the boomark manager, send BookmarkDrag events
   RenderViewHostDelegate::BookmarkDrag* dragDelegate =
       tabContents_->GetBookmarkDragDelegate();
-  if(dragDelegate)
-    dragDelegate->OnDragEnter(NULL);
+  BookmarkDragData dragData;
+  if(dragDelegate && dragData.ReadFromDragClipboard())
+    dragDelegate->OnDragEnter(dragData);
 
   // Fill out a WebDropData from pasteboard.
   WebDropData data;
   [self populateWebDropData:&data fromPasteboard:[info draggingPasteboard]];
 
   // Create the appropriate mouse locations for WebCore. The draggingLocation
   // is in window coordinates. Both need to be flipped.
   NSPoint windowPoint = [info draggingLocation];
   NSPoint viewPoint = [self flipWindowPointToView:windowPoint view:view];
   NSPoint screenPoint = [self flipWindowPointToScreen:windowPoint view:view];
@@ skipping 38 matching lines @@
   NSPoint screenPoint = [self flipWindowPointToScreen:windowPoint view:view];
   NSDragOperation mask = [info draggingSourceOperationMask];
   tabContents_->render_view_host()->DragTargetDragOver(
       gfx::Point(viewPoint.x, viewPoint.y),
       gfx::Point(screenPoint.x, screenPoint.y),
       static_cast<WebDragOperationsMask>(mask));
 
   // If the tab is showing the boomark manager, send BookmarkDrag events
   RenderViewHostDelegate::BookmarkDrag* dragDelegate =
       tabContents_->GetBookmarkDragDelegate();
-  if(dragDelegate)
-    dragDelegate->OnDragOver(NULL);
+  BookmarkDragData dragData;
+  if(dragDelegate && dragData.ReadFromDragClipboard())
+    dragDelegate->OnDragOver(dragData);
   return current_operation_;
 }
 
 - (BOOL)performDragOperation:(id<NSDraggingInfo>)info
                               view:(NSView*)view {
   if (currentRVH_ != tabContents_->render_view_host())
     [self draggingEntered:info view:view];
 
   // Check if we only allow navigation and navigate to a url on the pasteboard.
   if ([self onlyAllowsNavigation]) {
     NSPasteboard* pboard = [info draggingPasteboard];
     if ([pboard containsURLData]) {
       WebDropData data;
       [self populateURLAndTitle:&data fromPasteboard:pboard];
       tabContents_->OpenURL(data.url, GURL(), CURRENT_TAB,
                             PageTransition::AUTO_BOOKMARK);
       return YES;
     }
     return NO;
   }
 
   // If the tab is showing the boomark manager, send BookmarkDrag events
   RenderViewHostDelegate::BookmarkDrag* dragDelegate =
       tabContents_->GetBookmarkDragDelegate();
-  if(dragDelegate)
-    dragDelegate->OnDrop(NULL);
+  BookmarkDragData dragData;
+  if(dragDelegate && dragData.ReadFromDragClipboard())
+    dragDelegate->OnDrop(dragData);
 
   currentRVH_ = NULL;
 
   // Create the appropriate mouse locations for WebCore. The draggingLocation
   // is in window coordinates. Both need to be flipped.
   NSPoint windowPoint = [info draggingLocation];
   NSPoint viewPoint = [self flipWindowPointToView:windowPoint view:view];
   NSPoint screenPoint = [self flipWindowPointToScreen:windowPoint view:view];
   tabContents_->render_view_host()->DragTargetDrop(
       gfx::Point(viewPoint.x, viewPoint.y),
@@ skipping 78 matching lines @@
         if (exists && !isDir)
           data->filenames.push_back(base::SysNSStringToUTF16(filename));
       }
     }
   }
 
   // TODO(pinkerton): Get file contents. http://crbug.com/34661
 }
 
 @end