| /* |
| * Copyright (C) 2011 Google Inc. All rights reserved. |
| * Copyright (C) 2011 Ericsson AB. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef MediaStreamTrack_h |
| #define MediaStreamTrack_h |
| |
| #include "bindings/core/v8/ActiveScriptWrappable.h" |
| #include "core/dom/ContextLifecycleObserver.h" |
| #include "modules/EventTargetModules.h" |
| #include "modules/ModulesExport.h" |
| #include "platform/mediastream/MediaStreamDescriptor.h" |
| #include "platform/mediastream/MediaStreamSource.h" |
| #include "public/platform/WebMediaConstraints.h" |
| #include "wtf/Forward.h" |
| #include <memory> |
| |
| namespace blink { |
| |
| class AudioSourceProvider; |
| class ExceptionState; |
| class MediaTrackConstraints; |
| class MediaStream; |
| class MediaTrackSettings; |
| |
| class MODULES_EXPORT MediaStreamTrack |
| : public EventTargetWithInlineData, |
| public ActiveScriptWrappable<MediaStreamTrack>, |
| public ContextLifecycleObserver, |
| public MediaStreamSource::Observer { |
| USING_GARBAGE_COLLECTED_MIXIN(MediaStreamTrack); |
| DEFINE_WRAPPERTYPEINFO(); |
| |
| public: |
| static MediaStreamTrack* create(ExecutionContext*, MediaStreamComponent*); |
| ~MediaStreamTrack() override; |
| |
| String kind() const; |
| String id() const; |
| String label() const; |
| |
| bool enabled() const; |
| void setEnabled(bool); |
| |
| bool muted() const; |
| |
| String contentHint() const; |
| void setContentHint(const String&); |
| |
| String readyState() const; |
| |
| void stopTrack(ExceptionState&); |
| virtual MediaStreamTrack* clone(ScriptState*); |
| |
| void getConstraints(MediaTrackConstraints&); |
| |
| // This function is called when constrains have been successfully applied. |
| // Called from UserMediaRequest when it succeeds. It is not IDL-exposed. |
| void setConstraints(const WebMediaConstraints&); |
| |
| void getSettings(MediaTrackSettings&); |
| |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(mute); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(unmute); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(ended); |
| |
| MediaStreamComponent* component() { return m_component; } |
| bool ended() const; |
| |
| void registerMediaStream(MediaStream*); |
| void unregisterMediaStream(MediaStream*); |
| |
| // EventTarget |
| const AtomicString& interfaceName() const override; |
| ExecutionContext* getExecutionContext() const override; |
| |
| // ScriptWrappable |
| bool hasPendingActivity() const final; |
| |
| // ContextLifecycleObserver |
| void contextDestroyed(ExecutionContext*) override; |
| |
| std::unique_ptr<AudioSourceProvider> createWebAudioSource(); |
| |
| DECLARE_VIRTUAL_TRACE(); |
| |
| private: |
| friend class CanvasCaptureMediaStreamTrack; |
| |
| MediaStreamTrack(ExecutionContext*, MediaStreamComponent*); |
| |
| // MediaStreamSourceObserver |
| void sourceChangedState() override; |
| |
| void propagateTrackEnded(); |
| |
| MediaStreamSource::ReadyState m_readyState; |
| HeapHashSet<Member<MediaStream>> m_registeredMediaStreams; |
| bool m_isIteratingRegisteredMediaStreams; |
| bool m_stopped; |
| Member<MediaStreamComponent> m_component; |
| WebMediaConstraints m_constraints; |
| }; |
| |
| typedef HeapVector<Member<MediaStreamTrack>> MediaStreamTrackVector; |
| |
| } // namespace blink |
| |
| #endif // MediaStreamTrack_h |