Mouse lock implementation, including the renderer side and the Windows version of the browser side.

content/renderer/render_widget.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 24 matching lines @@
 
 namespace IPC {
 class SyncMessage;
 }
 
 namespace skia {
 class PlatformCanvas;
 }
 
 namespace WebKit {
+class WebInputEvent;
 class WebMouseEvent;
 class WebWidget;
 struct WebPopupMenuInfo;
 }
 
 namespace webkit {
 namespace npapi {
 struct WebPluginGeometry;
 }  // namespace npapi
 
@@ skipping 238 matching lines @@
   // a time period where we may have set a new window rect which has not yet
   // been processed by the browser.  So we maintain a pending window rect
   // size.  If JS code sets the WindowRect, and then immediately calls
   // GetWindowRect() we'll use this pending window rect as the size.
   void SetPendingWindowRect(const WebKit::WebRect& r);
 
   // Called by OnHandleInputEvent() to notify subclasses that a key event was
   // just handled.
   virtual void DidHandleKeyEvent() {}
 
+  // Called by OnHandleInputEvent() to notify subclasses that a mouse event is
+  // about to be handled.
+  // Returns true if no further handling is needed. In that case, the event
+  // won't be sent to WebKit or trigger DidHandleMouseEvent().
+  virtual bool WillHandleMouseEvent(const WebKit::WebMouseEvent& event);
+
   // Called by OnHandleInputEvent() to notify subclasses that a mouse event was
   // just handled.
   virtual void DidHandleMouseEvent(const WebKit::WebMouseEvent& event) {}
 
   // Routing ID that allows us to communicate to the parent browser process
   // RenderWidgetHost. When MSG_ROUTING_NONE, no messages may be sent.
   int32 routing_id_;
 
   // We are responsible for destroying this object via its Close method.
   WebKit::WebWidget* webwidget_;
@@ skipping 125 matching lines @@
   bool animation_task_posted_;
   bool invalidation_task_posted_;
 
   bool has_disable_gpu_vsync_switch_;
   base::TimeTicks last_do_deferred_update_time_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_