Silent mouse lock after unlock by target

content/browser/renderer_host/render_widget_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #pragma once
 
 #include <deque>
 #include <string>
@@ skipping 389 matching lines @@
 
   // Called when auto-resize resulted in the renderer size changing.
   virtual void OnRenderAutoResized(const gfx::Size& new_size) {}
 
   // ---------------------------------------------------------------------------
 
   // RenderViewHost overrides this method to impose further restrictions on when
   // to allow mouse lock.
   // Once the request is approved or rejected, GotResponseToLockMouseRequest()
   // will be called.
-  virtual void RequestToLockMouse(bool user_gesture);
+  virtual void RequestToLockMouse(bool user_gesture,

[jochen (gone - plz use gerrit), 2012/05/25 21:53:46]

the fact that this requires the presence of a RVH means that pepper fullscreen
can't use this code path. Is this intended?

[scheib, 2012/05/26 01:12:34]

Currently this is only used by web pages containing pepper/NaCl or javascript
applications.

We do have a pepper example that uses fullscreen and mouse lock:
src/ppapi/examples/mouse_lock/mouse_lock.cc

yzshen initially placed the mouse lock etc code at the RenderWidget level
because the implementation is done in the platform specific RenderWidgetHostView
objects, and related IPC messages already pass through the Widget. yzshen also
intends to add additional support for non RenderViewHost instances using mouse
lock, and will add implementation when needed.

+      bool after_unlocked_by_target);
 
   void RejectMouseLockOrUnlockIfNecessary();
   bool IsMouseLocked() const;
 
   // RenderViewHost overrides this method to report when in fullscreen mode.
   virtual bool IsFullscreen() const;
 
   // Indicates if the render widget host should track the render widget's size
   // as opposed to visa versa.
   void SetShouldAutoResize(bool enable);
@@ skipping 55 matching lines @@
   void OnMsgDidChangeNumTouchEvents(int count);
 
   void OnMsgSetCursor(const WebCursor& cursor);
   void OnMsgTextInputStateChanged(ui::TextInputType type,
                                   bool can_compose_inline);
   void OnMsgImeCompositionRangeChanged(const ui::Range& range);
   void OnMsgImeCancelComposition();
 
   void OnMsgDidActivateAcceleratedCompositing(bool activated);
 
-  void OnMsgLockMouse(bool user_gesture);
+  void OnMsgLockMouse(bool user_gesture, bool after_unlocked_by_target);
   void OnMsgUnlockMouse();
 
 #if defined(OS_POSIX) || defined(USE_AURA)
   void OnMsgGetWindowRect(gfx::NativeViewId window_id, gfx::Rect* results);
   void OnMsgGetRootWindowRect(gfx::NativeViewId window_id, gfx::Rect* results);
 #endif
 #if defined(OS_MACOSX)
   void OnMsgPluginFocusChanged(bool focused, int plugin_id);
   void OnMsgStartPluginIme();
   void OnAllocateFakePluginWindowHandle(bool opaque,
@@ skipping 220 matching lines @@
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   scoped_ptr<TapSuppressionController> tap_suppression_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_