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(
  27       int request_id,
  28       content::MediaStreamRequestResult result) = 0;
  29
  30   // A device has been stopped in the browser processes.
  31   virtual void OnDeviceStopped(
  32       const std::string& label,
  33       const StreamDeviceInfo& device_info) = 0;
  34
  35   // A new list of devices have been enumerated.
  36   virtual void OnDevicesEnumerated(
  37       int request_id,
  38       const StreamDeviceInfoArray& device_array) = 0;
  39
  40   // A device has been opened.
  41   virtual void OnDeviceOpened(
  42       int request_id,
  43       const std::string& label,
  44       const StreamDeviceInfo& device_info) = 0;
  45
  46   // Failed to open the device.
  47   virtual void OnDeviceOpenFailed(int request_id) = 0;
  48
  49  protected:
  50   virtual ~MediaStreamDispatcherEventHandler() {}
  51 };
  52
  53 }  // namespace content
  54
  55 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_EVENTHANDLER_H_