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 #if defined(OS_ANDROID) 17 class BrowserMediaPlayerManager; 18 #endif // defined(OS_ANDROID) 19 class RenderViewHost; 20 21 // This class manages all RenderFrame based media related managers at the 22 // browser side. It receives IPC messages from media RenderFrameObservers and 23 // forwards them to the corresponding managers. The managers are responsible 24 // for sending IPCs back to the RenderFrameObservers at the render side. 25 class CONTENT_EXPORT MediaWebContentsObserver : public WebContentsObserver { 26 public: 27 explicit MediaWebContentsObserver(RenderViewHost* render_view_host); 28 virtual ~MediaWebContentsObserver(); 29 30 // WebContentsObserver implementations. 31 virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) OVERRIDE; 32 virtual bool OnMessageReceived(const IPC::Message& message, 33 RenderFrameHost* render_frame_host) OVERRIDE; 34 35 // Helper function to handle CDM IPC messages. Returns whether the |message| 36 // is handled in the function. 37 bool OnCdmMessageReceived(const IPC::Message& message, 38 RenderFrameHost* render_frame_host); 39 40 // Gets the CDM manager associated with |render_frame_host|. Creates 41 // a new one if it doesn't exist. The caller doesn't own the returned pointer. 42 BrowserCdmManager* GetCdmManager(RenderFrameHost* render_frame_host); 43 44 #if defined(OS_ANDROID) 45 // Helper functions to handle media player IPC messages. Returns whether the 46 // |message| is handled in the function. 47 bool OnMediaPlayerMessageReceived(const IPC::Message& message, 48 RenderFrameHost* render_frame_host); 49 bool OnMediaPlayerSetCdmMessageReceived(const IPC::Message& message, 50 RenderFrameHost* render_frame_host); 51 52 // Gets the media player manager associated with |render_frame_host|. Creates 53 // a new one if it doesn't exist. The caller doesn't own the returned pointer. 54 BrowserMediaPlayerManager* GetMediaPlayerManager( 55 RenderFrameHost* render_frame_host); 56 57 void OnSetCdm(RenderFrameHost* render_frame_host, int player_id, int cdm_id); 58 59 // Pauses all media player. 60 void PauseVideo(); 61 62 #if defined(VIDEO_HOLE) 63 void OnFrameInfoUpdated(); 64 #endif // defined(VIDEO_HOLE) 65 66 #endif // defined(OS_ANDROID) 67 68 private: 69 // Map from RenderFrameHost* to BrowserCdmManager. 70 typedef base::ScopedPtrHashMap<uintptr_t, BrowserCdmManager> CdmManagerMap; 71 CdmManagerMap cdm_managers_; 72 73 #if defined(OS_ANDROID) 74 // Map from RenderFrameHost* to BrowserMediaPlayerManager. 75 typedef base::ScopedPtrHashMap<uintptr_t, BrowserMediaPlayerManager> 76 MediaPlayerManagerMap; 77 MediaPlayerManagerMap media_player_managers_; 78 #endif // defined(OS_ANDROID) 79 80 DISALLOW_COPY_AND_ASSIGN(MediaWebContentsObserver); 81 }; 82 83 } // namespace content 84 85 #endif // CONTENT_BROWSER_MEDIA_MEDIA_WEB_CONTENTS_OBSERVER_H_ 86
