| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WEBRTC_TRACK_OBSERVER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WEBRTC_TRACK_OBSERVER_H_ |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "base/single_thread_task_runner.h" |
| #include "third_party/blink/renderer/platform/platform_export.h" |
| #include "third_party/webrtc/api/media_stream_interface.h" |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT TrackObserver { |
| public: |
| TrackObserver(const scoped_refptr<base::SingleThreadTaskRunner>& main_thread, |
| const scoped_refptr<webrtc::MediaStreamTrackInterface>& track); |
| ~TrackObserver(); |
| |
| using OnChangedCallback = base::RepeatingCallback<void( |
| webrtc::MediaStreamTrackInterface::TrackState)>; |
| void SetCallback(const OnChangedCallback& callback); |
| |
| const scoped_refptr<webrtc::MediaStreamTrackInterface>& track() const; |
| |
| private: |
| class TrackObserverImpl; |
| const scoped_refptr<TrackObserverImpl> observer_; |
| DISALLOW_COPY_AND_ASSIGN(TrackObserver); |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WEBRTC_TRACK_OBSERVER_H_ |