| /* |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "modules/mediastream/MediaStreamTrack.h" |
| |
| #include "bindings/v8/ExceptionState.h" |
| #include "core/dom/Event.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "core/dom/ScriptExecutionContext.h" |
| #include "core/platform/mediastream/MediaStreamCenter.h" |
| #include "core/platform/mediastream/MediaStreamComponent.h" |
| #include "modules/mediastream/MediaStreamTrackSourcesCallback.h" |
| #include "modules/mediastream/MediaStreamTrackSourcesRequest.h" |
| #include "public/platform/WebSourceInfo.h" |
| |
| namespace WebCore { |
| |
| PassRefPtr<MediaStreamTrack> MediaStreamTrack::create(ScriptExecutionContext* context, MediaStreamComponent* component) |
| { |
| RefPtr<MediaStreamTrack> track = adoptRef(new MediaStreamTrack(context, component)); |
| track->suspendIfNeeded(); |
| return track.release(); |
| } |
| |
| MediaStreamTrack::MediaStreamTrack(ScriptExecutionContext* context, MediaStreamComponent* component) |
| : ActiveDOMObject(context) |
| , m_stopped(false) |
| , m_component(component) |
| { |
| ScriptWrappable::init(this); |
| m_component->source()->addObserver(this); |
| } |
| |
| MediaStreamTrack::~MediaStreamTrack() |
| { |
| m_component->source()->removeObserver(this); |
| } |
| |
| String MediaStreamTrack::kind() const |
| { |
| DEFINE_STATIC_LOCAL(String, audioKind, ("audio")); |
| DEFINE_STATIC_LOCAL(String, videoKind, ("video")); |
| |
| switch (m_component->source()->type()) { |
| case MediaStreamSource::TypeAudio: |
| return audioKind; |
| case MediaStreamSource::TypeVideo: |
| return videoKind; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return audioKind; |
| } |
| |
| String MediaStreamTrack::id() const |
| { |
| return m_component->id(); |
| } |
| |
| String MediaStreamTrack::label() const |
| { |
| return m_component->source()->name(); |
| } |
| |
| bool MediaStreamTrack::enabled() const |
| { |
| return m_component->enabled(); |
| } |
| |
| void MediaStreamTrack::setEnabled(bool enabled) |
| { |
| if (m_stopped || enabled == m_component->enabled()) |
| return; |
| |
| m_component->setEnabled(enabled); |
| |
| if (m_component->stream()->ended()) |
| return; |
| |
| MediaStreamCenter::instance().didSetMediaStreamTrackEnabled(m_component->stream(), m_component.get()); |
| } |
| |
| String MediaStreamTrack::readyState() const |
| { |
| if (m_stopped) |
| return "ended"; |
| |
| switch (m_component->source()->readyState()) { |
| case MediaStreamSource::ReadyStateLive: |
| return "live"; |
| case MediaStreamSource::ReadyStateMuted: |
| return "muted"; |
| case MediaStreamSource::ReadyStateEnded: |
| return "ended"; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return String(); |
| } |
| |
| void MediaStreamTrack::getSources(ScriptExecutionContext* context, PassRefPtr<MediaStreamTrackSourcesCallback> callback, ExceptionState& es) |
| { |
| RefPtr<MediaStreamTrackSourcesRequest> request = MediaStreamTrackSourcesRequest::create(context, callback); |
| bool ok = MediaStreamCenter::instance().getMediaStreamTrackSources(request.release()); |
| if (!ok) |
| es.throwDOMException(NotSupportedError); |
| } |
| |
| bool MediaStreamTrack::ended() const |
| { |
| return m_stopped || (m_component->source()->readyState() == MediaStreamSource::ReadyStateEnded); |
| } |
| |
| void MediaStreamTrack::sourceChangedState() |
| { |
| if (m_stopped) |
| return; |
| |
| switch (m_component->source()->readyState()) { |
| case MediaStreamSource::ReadyStateLive: |
| dispatchEvent(Event::create(eventNames().unmuteEvent)); |
| break; |
| case MediaStreamSource::ReadyStateMuted: |
| dispatchEvent(Event::create(eventNames().muteEvent)); |
| break; |
| case MediaStreamSource::ReadyStateEnded: |
| dispatchEvent(Event::create(eventNames().endedEvent)); |
| didEndTrack(); |
| break; |
| } |
| } |
| |
| void MediaStreamTrack::didEndTrack() |
| { |
| MediaStreamDescriptorClient* client = m_component->stream()->client(); |
| if (!client) |
| return; |
| |
| client->trackEnded(); |
| } |
| |
| MediaStreamComponent* MediaStreamTrack::component() |
| { |
| return m_component.get(); |
| } |
| |
| void MediaStreamTrack::stop() |
| { |
| m_stopped = true; |
| } |
| |
| const AtomicString& MediaStreamTrack::interfaceName() const |
| { |
| return eventNames().interfaceForMediaStreamTrack; |
| } |
| |
| ScriptExecutionContext* MediaStreamTrack::scriptExecutionContext() const |
| { |
| return ActiveDOMObject::scriptExecutionContext(); |
| } |
| |
| EventTargetData* MediaStreamTrack::eventTargetData() |
| { |
| return &m_eventTargetData; |
| } |
| |
| EventTargetData* MediaStreamTrack::ensureEventTargetData() |
| { |
| return &m_eventTargetData; |
| } |
| |
| } // namespace WebCore |