Implement pointer lock API for out-of-process iframes.

content/renderer/render_widget.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_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <deque>
 #include <map>
 #include <memory>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/common/cursors/webcursor.h"
 #include "content/common/input/synthetic_gesture_params.h"
 #include "content/renderer/devtools/render_widget_screen_metrics_emulator_delegate.h"
 #include "content/renderer/gpu/render_widget_compositor_delegate.h"
 #include "content/renderer/input/render_widget_input_handler.h"
 #include "content/renderer/input/render_widget_input_handler_delegate.h"
 #include "content/renderer/message_delivery_policy.h"
+#include "content/renderer/mouse_lock_dispatcher.h"
+#include "content/renderer/render_widget_mouse_lock_dispatcher.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "third_party/WebKit/public/platform/WebDisplayMode.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/WebPopupType.h"
 #include "third_party/WebKit/public/web/WebTextDirection.h"
 #include "third_party/WebKit/public/web/WebTextInputInfo.h"
 #include "third_party/WebKit/public/web/WebTouchAction.h"
@@ skipping 214 matching lines @@
   void resetInputMethod() override;
   void didHandleGestureEvent(const blink::WebGestureEvent& event,
                              bool event_cancelled) override;
   void didOverscroll(const blink::WebFloatSize& overscrollDelta,
                      const blink::WebFloatSize& accumulatedOverscroll,
                      const blink::WebFloatPoint& position,
                      const blink::WebFloatSize& velocity) override;
   void showImeIfNeeded() override;
   void convertViewportToWindow(blink::WebRect* rect) override;
   void convertWindowToViewport(blink::WebFloatRect* rect) override;
+  bool requestPointerLock() override;
+  void requestPointerUnlock() override;
+  bool isPointerLocked() override;
 
   // Override point to obtain that the current input method state and caret
   // position.
   virtual ui::TextInputType GetTextInputType();
   virtual ui::TextInputType WebKitToUiTextInputType(
       blink::WebTextInputType type);
 
 #if defined(OS_ANDROID)
   // Notifies that a tap was not consumed, so showing a UI for the unhandled
   // tap may be needed.
@@ skipping 84 matching lines @@
   // handle composition range and composition character bounds.
   void UpdateCompositionInfo(bool should_update_range);
 
   // Change the device ICC color profile while running a layout test.
   void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
   void ResetDeviceColorProfileForTesting();
 
   // Indicates whether this widget has focus.
   bool has_focus() const { return has_focus_; }
 
+  MouseLockDispatcher* mouse_lock_dispatcher() {
+    return mouse_lock_dispatcher_.get();
+  }
+
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
   friend class base::RefCounted<RenderWidget>;
 
   // For unit tests.
   friend class RenderWidgetTest;
 
   enum ResizeAck {
     SEND_RESIZE_ACK,
@@ skipping 374 matching lines @@
   // are sent to each frame in the list for events such as changing
   // visibility state for example.
   base::ObserverList<RenderFrameImpl> render_frames_;
 
   bool has_host_context_menu_location_;
   gfx::Point host_context_menu_location_;
 
   std::unique_ptr<scheduler::RenderWidgetSchedulingState>
       render_widget_scheduling_state_;
 
+  // Mouse Lock dispatcher attached to this view.
+  std::unique_ptr<RenderWidgetMouseLockDispatcher> mouse_lock_dispatcher_;
+
+  // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
+  std::unique_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
+
  private:
   // When emulated, this returns original device scale factor.
   float GetOriginalDeviceScaleFactor() const;
 
   // Indicates whether this widget has focus.
   bool has_focus_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_