Drag-and-drop: DragEnter, DragOver, DragLeave, DragDrop

content/browser/browser_plugin/browser_plugin_guest.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 806 matching lines @@
                                             blink::WebDragStatus drag_status,
                                             const DropData& drop_data,
                                             blink::WebDragOperationsMask mask,
                                             const gfx::Point& location) {
   RenderViewHost* host = GetWebContents()->GetRenderViewHost();
   auto* embedder = owner_web_contents_->GetBrowserPluginEmbedder();
   DropData filtered_data(drop_data);
   host->FilterDropData(&filtered_data);
   switch (drag_status) {
     case blink::WebDragStatusEnter:
-      host->DragTargetDragEnter(filtered_data, location, location, mask,
-                                drop_data.key_modifiers);
+      host->GetWidget()->DragTargetDragEnter(filtered_data, location, location,

[dcheng, 2016/11/09 20:23:16]

Is it worth adding a TODO here? Presumably we'll have to make this hit test at
some point.

[paulmeyer, 2016/11/09 23:19:11]

Done.

+                                             mask, drop_data.key_modifiers);
       // Only track the URL being dragged over the guest if the link isn't
       // coming from the guest.
       if (!embedder->DragEnteredGuest(this))
         ignore_dragged_url_ = false;
       break;
     case blink::WebDragStatusOver:
-      host->DragTargetDragOver(location, location, mask,
-                               drop_data.key_modifiers);
+      host->GetWidget()->DragTargetDragOver(location, location, mask,
+                                            drop_data.key_modifiers);
       break;
     case blink::WebDragStatusLeave:
       embedder->DragLeftGuest(this);
-      host->DragTargetDragLeave();
+      host->GetWidget()->DragTargetDragLeave();
       ignore_dragged_url_ = true;
       break;
     case blink::WebDragStatusDrop:
-      host->DragTargetDrop(filtered_data, location, location,
-                           drop_data.key_modifiers);
+      host->GetWidget()->DragTargetDrop(filtered_data, location, location,
+                                        drop_data.key_modifiers);
 
       if (!ignore_dragged_url_ && filtered_data.url.is_valid())
         delegate_->DidDropLink(filtered_data.url);
       ignore_dragged_url_ = true;
       break;
     case blink::WebDragStatusUnknown:
       ignore_dragged_url_ = true;
       NOTREACHED();
   }
   last_drag_status_ = drag_status;
@@ skipping 179 matching lines @@
           range, character_bounds);
 }
 #endif
 
 void BrowserPluginGuest::SetContextMenuPosition(const gfx::Point& position) {
   if (delegate_)
     delegate_->SetContextMenuPosition(position);
 }
 
 }  // namespace content