content/renderer/device_orientation_dispatcher.h

   1 // Copyright (c) 2012 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_DEVICE_ORIENTATION_DISPATCHER_H_
   6 #define CONTENT_RENDERER_DEVICE_ORIENTATION_DISPATCHER_H_
   7
   8 #include "third_party/WebKit/public/web/WebDeviceOrientationClient.h"
   9 #include "third_party/WebKit/public/web/WebDeviceOrientation.h"
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "content/public/renderer/render_view_observer.h"
  13
  14 struct DeviceOrientationMsg_Updated_Params;
  15
  16 namespace content {
  17 class RenderViewImpl;
  18
  19 class DeviceOrientationDispatcher : public RenderViewObserver,
  20                                     public WebKit::WebDeviceOrientationClient {
  21  public:
  22   explicit DeviceOrientationDispatcher(RenderViewImpl* render_view);
  23   virtual ~DeviceOrientationDispatcher();
  24
  25  private:
  26   // RenderView::Observer implementation.
  27   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  28
  29   // From WebKit::WebDeviceOrientationClient.
  30   virtual void setController(
  31       WebKit::WebDeviceOrientationController* controller);
  32   virtual void startUpdating();
  33   virtual void stopUpdating();
  34   virtual WebKit::WebDeviceOrientation lastOrientation() const;
  35
  36   void OnDeviceOrientationUpdated(
  37       const DeviceOrientationMsg_Updated_Params& p);
  38
  39   scoped_ptr<WebKit::WebDeviceOrientationController> controller_;
  40   WebKit::WebDeviceOrientation last_orientation_;
  41   bool started_;
  42 };
  43
  44 }  // namespace content
  45
  46 #endif  // CONTENT_RENDERER_DEVICE_ORIENTATION_DISPATCHER_H_