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 class ResourceContext;
  23
  24 // MediaStreamDispatcherHost is a delegate for Media Stream API messages used by
  25 // MediaStreamImpl.  There is one MediaStreamDispatcherHost per
  26 // RenderProcessHost, the former owned by the latter.
  27 class CONTENT_EXPORT MediaStreamDispatcherHost : public BrowserMessageFilter,
  28                                                  public MediaStreamRequester {
  29  public:
  30   MediaStreamDispatcherHost(
  31       int render_process_id,
  32       const ResourceContext::SaltCallback& salt_callback,
  33       MediaStreamManager* media_stream_manager);
  34
  35   // MediaStreamRequester implementation.
  36   void StreamGenerated(int render_frame_id,
  37                        int page_request_id,
  38                        const std::string& label,
  39                        const StreamDeviceInfoArray& audio_devices,
  40                        const StreamDeviceInfoArray& video_devices) override;
  41   void StreamGenerationFailed(
  42       int render_frame_id,
  43       int page_request_id,
  44       content::MediaStreamRequestResult result) override;
  45   void DeviceStopped(int render_frame_id,
  46                      const std::string& label,
  47                      const StreamDeviceInfo& device) override;
  48   void DevicesEnumerated(int render_frame_id,
  49                          int page_request_id,
  50                          const std::string& label,
  51                          const StreamDeviceInfoArray& devices) override;
  52   void DeviceOpened(int render_frame_id,
  53                     int page_request_id,
  54                     const std::string& label,
  55                     const StreamDeviceInfo& video_device) override;
  56
  57   // BrowserMessageFilter implementation.
  58   bool OnMessageReceived(const IPC::Message& message) override;
  59   void OnChannelClosing() override;
  60
  61  protected:
  62   ~MediaStreamDispatcherHost() override;
  63
  64  private:
  65   friend class MockMediaStreamDispatcherHost;
  66
  67   void OnGenerateStream(int render_frame_id,
  68                         int page_request_id,
  69                         const StreamOptions& components,
  70                         const GURL& security_origin,
  71                         bool user_gesture);
  72   void OnCancelGenerateStream(int render_frame_id,
  73                               int page_request_id);
  74   void OnStopStreamDevice(int render_frame_id,
  75                           const std::string& device_id);
  76
  77   void OnEnumerateDevices(int render_frame_id,
  78                           int page_request_id,
  79                           MediaStreamType type,
  80                           const GURL& security_origin);
  81
  82   void OnCancelEnumerateDevices(int render_frame_id,
  83                                 int page_request_id);
  84
  85   void OnOpenDevice(int render_frame_id,
  86                     int page_request_id,
  87                     const std::string& device_id,
  88                     MediaStreamType type,
  89                     const GURL& security_origin);
  90
  91   void OnCloseDevice(int render_frame_id,
  92                      const std::string& label);
  93
  94   void StoreRequest(int render_frame_id,
  95                     int page_request_id,
  96                     const std::string& label);
  97
  98   bool IsURLAllowed(const GURL& url);
  99
 100   int render_process_id_;
 101   ResourceContext::SaltCallback salt_callback_;
 102   MediaStreamManager* media_stream_manager_;
 103
 104   DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcherHost);
 105 };
 106
 107 }  // namespace content
 108
 109 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_