src/content/browser/renderer_host/media/media_stream_dispatcher_host.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_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
   7
   8 #include <map>
   9 #include <string>
  10 #include <utility>
  11
  12 #include "content/browser/renderer_host/media/media_stream_manager.h"
  13 #include "content/browser/renderer_host/media/media_stream_requester.h"
  14 #include "content/common/content_export.h"
  15 #include "content/common/media/media_stream_options.h"
  16 #include "content/public/browser/browser_message_filter.h"
  17 #include "content/public/browser/resource_context.h"
  18
  19 namespace content {
  20
  21 class MediaStreamManager;
  22
  23 // MediaStreamDispatcherHost is a delegate for Media Stream API messages used by
  24 // MediaStreamImpl. It's the complement of MediaStreamDispatcher
  25 // (owned by RenderView).
  26 class CONTENT_EXPORT MediaStreamDispatcherHost : public BrowserMessageFilter,
  27                                                  public MediaStreamRequester {
  28  public:
  29   MediaStreamDispatcherHost(
  30       int render_process_id,
  31       const ResourceContext::SaltCallback& salt_callback,
  32       MediaStreamManager* media_stream_manager);
  33
  34   // MediaStreamRequester implementation.
  35   virtual void StreamGenerated(
  36       int render_view_id,
  37       int page_request_id,
  38       const std::string& label,
  39       const StreamDeviceInfoArray& audio_devices,
  40       const StreamDeviceInfoArray& video_devices) OVERRIDE;
  41   virtual void StreamGenerationFailed(int render_view_id,
  42                                       int page_request_id) OVERRIDE;
  43   virtual void DeviceStopped(int render_view_id,
  44                              const std::string& label,
  45                              const StreamDeviceInfo& device) OVERRIDE;
  46   virtual void DevicesEnumerated(int render_view_id,
  47                                  int page_request_id,
  48                                  const std::string& label,
  49                                  const StreamDeviceInfoArray& devices) OVERRIDE;
  50   virtual void DeviceOpened(int render_view_id,
  51                             int page_request_id,
  52                             const std::string& label,
  53                             const StreamDeviceInfo& video_device) OVERRIDE;
  54
  55   // BrowserMessageFilter implementation.
  56   virtual bool OnMessageReceived(const IPC::Message& message,
  57                                  bool* message_was_ok) OVERRIDE;
  58   virtual void OnChannelClosing() OVERRIDE;
  59
  60  protected:
  61   virtual ~MediaStreamDispatcherHost();
  62
  63  private:
  64   friend class MockMediaStreamDispatcherHost;
  65
  66   void OnGenerateStream(int render_view_id,
  67                         int page_request_id,
  68                         const StreamOptions& components,
  69                         const GURL& security_origin);
  70   void OnCancelGenerateStream(int render_view_id,
  71                               int page_request_id);
  72   void OnStopStreamDevice(int render_view_id,
  73                           const std::string& device_id);
  74
  75   void OnEnumerateDevices(int render_view_id,
  76                           int page_request_id,
  77                           MediaStreamType type,
  78                           const GURL& security_origin);
  79
  80   void OnCancelEnumerateDevices(int render_view_id,
  81                                 int page_request_id);
  82
  83   void OnOpenDevice(int render_view_id,
  84                     int page_request_id,
  85                     const std::string& device_id,
  86                     MediaStreamType type,
  87                     const GURL& security_origin);
  88
  89   void OnCloseDevice(int render_view_id,
  90                      const std::string& label);
  91
  92   void StoreRequest(int render_view_id,
  93                     int page_request_id,
  94                     const std::string& label);;
  95
  96   int render_process_id_;
  97   ResourceContext::SaltCallback salt_callback_;
  98   MediaStreamManager* media_stream_manager_;
  99
 100   DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcherHost);
 101 };
 102
 103 }  // namespace content
 104
 105 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_