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
13namespace content {
14
15class 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_
56