content/renderer/screen_orientation/screen_orientation_dispatcher.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_
   6 #define CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_
   7
   8 #include "base/macros.h"
   9 #include "content/public/renderer/render_process_observer.h"
  10 #include "third_party/WebKit/public/platform/WebScreenOrientationType.h"
  11
  12 namespace blink {
  13 class WebScreenOrientationListener;
  14 }
  15
  16 namespace content {
  17
  18 class RenderThread;
  19
  20 // ScreenOrientationDispatcher listens to message from the browser process and
  21 // dispatch the orientation change ones to the WebScreenOrientationListener.
  22 class CONTENT_EXPORT ScreenOrientationDispatcher
  23     : public RenderProcessObserver {
  24  public:
  25   explicit ScreenOrientationDispatcher(RenderThread*);
  26   virtual ~ScreenOrientationDispatcher() {}
  27
  28   // RenderProcessObserver
  29   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
  30
  31   void setListener(blink::WebScreenOrientationListener* listener);
  32
  33  private:
  34   void OnOrientationChange(blink::WebScreenOrientationType orientation);
  35
  36   blink::WebScreenOrientationListener* listener_;
  37
  38   DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDispatcher);
  39 };
  40
  41 }  // namespace content
  42
  43 #endif // CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_