content/browser/screen_orientation/screen_orientation_dispatcher_host.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_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_H_
   6 #define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_H_
   7
   8 #include "content/public/browser/browser_message_filter.h"
   9 #include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
  10 #include "third_party/WebKit/public/platform/WebScreenOrientationType.h"
  11
  12 namespace content {
  13
  14 class ScreenOrientationProvider;
  15
  16 // ScreenOrientationDispatcherHost is a browser filter for Screen Orientation
  17 // messages and also helps dispatching messages about orientation changes to the
  18 // renderers.
  19 class CONTENT_EXPORT ScreenOrientationDispatcherHost
  20     : public BrowserMessageFilter {
  21  public:
  22   ScreenOrientationDispatcherHost();
  23
  24   // BrowserMessageFilter
  25   virtual bool OnMessageReceived(const IPC::Message&, bool*) OVERRIDE;
  26
  27   void OnOrientationChange(blink::WebScreenOrientationType orientation);
  28
  29   void SetProviderForTests(ScreenOrientationProvider* provider);
  30
  31  private:
  32   virtual ~ScreenOrientationDispatcherHost();
  33
  34   void OnLockRequest(blink::WebScreenOrientationLockType orientations);
  35   void OnUnlockRequest();
  36
  37   static ScreenOrientationProvider* CreateProvider();
  38
  39   scoped_ptr<ScreenOrientationProvider> provider_;
  40
  41   DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDispatcherHost);
  42 };
  43
  44 }  // namespace content
  45
  46 #endif // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_H_