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/*
* Copyright (C) 2011, 2012 Apple Inc. 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. ``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
* 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.
*/
#pragma once
#if ENABLE(VIDEO_TRACK)
#include "EventListener.h"
#include "EventTarget.h"
#include "GenericEventQueue.h"
#include "Timer.h"
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class HTMLMediaElement;
class Element;
class TrackBase;
class TrackListBase : public RefCounted<TrackListBase>, public EventTargetWithInlineData {
public:
virtual ~TrackListBase();
virtual unsigned length() const;
virtual bool contains(TrackBase&) const;
virtual void remove(TrackBase&, bool scheduleEvent = true);
// EventTarget
EventTargetInterface eventTargetInterface() const override = 0;
using RefCounted<TrackListBase>::ref;
using RefCounted<TrackListBase>::deref;
ScriptExecutionContext* scriptExecutionContext() const final { return m_context; }
virtual void clearElement();
Element* element() const;
HTMLMediaElement* mediaElement() const { return m_element; }
// Needs to be public so tracks can call it
void scheduleChangeEvent();
bool isAnyTrackEnabled() const;
protected:
TrackListBase(HTMLMediaElement*, ScriptExecutionContext*);
void scheduleAddTrackEvent(Ref<TrackBase>&&);
void scheduleRemoveTrackEvent(Ref<TrackBase>&&);
Vector<RefPtr<TrackBase>> m_inbandTracks;
private:
void scheduleTrackEvent(const AtomicString& eventName, Ref<TrackBase>&&);
// EventTarget
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
ScriptExecutionContext* m_context;
HTMLMediaElement* m_element;
GenericEventQueue m_asyncEventQueue;
};
} // namespace WebCore
#endif // ENABLE(VIDEO_TRACK)
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