content/renderer/media/media_stream_dispatcher_eventhandler.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_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_
   6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_
   7
   8 #include <string>
   9
  10 #include "content/common/content_export.h"
  11 #include "content/common/media/media_stream_options.h"
  12
  13 namespace content {
  14
  15 class CONTENT_EXPORT MediaStreamDispatcherEventHandler {
  16  public:
  17   // A new media stream have been created.
  18   virtual void OnStreamGenerated(
  19       int request_id,
  20       const std::string& label,
  21       const StreamDeviceInfoArray& audio_device_array,
  22       const StreamDeviceInfoArray& video_device_array) = 0;
  23
  24   // Creation of a new media stream failed. The user might have denied access
  25   // to the requested devices or no device is available.
  26   virtual void OnStreamGenerationFailed(int request_id) = 0;
  27
  28   // A new list of devices have been enumerated.
  29   virtual void OnDevicesEnumerated(
  30       int request_id,
  31       const StreamDeviceInfoArray& device_array) = 0;
  32
  33   // Failed to enumerate devices.
  34   virtual void OnDevicesEnumerationFailed(int request_id) = 0;
  35
  36   // A device has been opened.
  37   virtual void OnDeviceOpened(
  38       int request_id,
  39       const std::string& label,
  40       const StreamDeviceInfo& device_info) = 0;
  41
  42   // Failed to open the device.
  43   virtual void OnDeviceOpenFailed(int request_id) = 0;
  44
  45  protected:
  46   virtual ~MediaStreamDispatcherEventHandler() {}
  47 };
  48
  49 }  // namespace content
  50
  51 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_