content/browser/media/media_web_contents_observer.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_MEDIA_MEDIA_WEB_CONTENTS_OBSERVER_H_
   6 #define CONTENT_BROWSER_MEDIA_MEDIA_WEB_CONTENTS_OBSERVER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/containers/scoped_ptr_hash_map.h"
  10 #include "content/common/content_export.h"
  11 #include "content/public/browser/web_contents_observer.h"
  12
  13 namespace content {
  14
  15 class BrowserCdmManager;
  16 class BrowserMediaPlayerManager;
  17
  18 // This class manages all RenderFrame based media related managers at the
  19 // browser side. It receives IPC messages from media RenderFrameObservers and
  20 // forwards them to the corresponding managers. The managers are responsible
  21 // for sending IPCs back to the RenderFrameObservers at the render side.
  22 class CONTENT_EXPORT MediaWebContentsObserver : public WebContentsObserver {
  23  public:
  24   explicit MediaWebContentsObserver(WebContents* web_contents);
  25   ~MediaWebContentsObserver() override;
  26
  27   // WebContentsObserver implementations.
  28   void RenderFrameDeleted(RenderFrameHost* render_frame_host) override;
  29
  30 #if defined(OS_ANDROID)
  31   bool OnMessageReceived(const IPC::Message& message,
  32                          RenderFrameHost* render_frame_host) override;
  33
  34   // Helper functions to handle media player IPC messages. Returns whether the
  35   // |message| is handled in the function.
  36   bool OnMediaPlayerMessageReceived(const IPC::Message& message,
  37                                     RenderFrameHost* render_frame_host);
  38   bool OnMediaPlayerSetCdmMessageReceived(const IPC::Message& message,
  39                                           RenderFrameHost* render_frame_host);
  40
  41   // Gets the media player manager associated with |render_frame_host|. Creates
  42   // a new one if it doesn't exist. The caller doesn't own the returned pointer.
  43   BrowserMediaPlayerManager* GetMediaPlayerManager(
  44       RenderFrameHost* render_frame_host);
  45
  46   void OnSetCdm(RenderFrameHost* render_frame_host, int player_id, int cdm_id);
  47
  48 #if defined(VIDEO_HOLE)
  49   void OnFrameInfoUpdated();
  50 #endif  // defined(VIDEO_HOLE)
  51
  52  private:
  53   // Map from RenderFrameHost* to BrowserMediaPlayerManager.
  54   typedef base::ScopedPtrHashMap<uintptr_t,
  55                                  scoped_ptr<BrowserMediaPlayerManager>>
  56       MediaPlayerManagerMap;
  57   MediaPlayerManagerMap media_player_managers_;
  58 #endif  // defined(OS_ANDROID)
  59
  60  private:
  61   DISALLOW_COPY_AND_ASSIGN(MediaWebContentsObserver);
  62 };
  63
  64 }  // namespace content
  65
  66 #endif  // CONTENT_BROWSER_MEDIA_MEDIA_WEB_CONTENTS_OBSERVER_H_