#ifndef TrackListBase_h
#define TrackListBase_h
#if ENABLE(VIDEO_TRACK)
#include "EventListener.h"
#include "EventTarget.h"
#include "Timer.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class HTMLMediaElement;
class Element;
class TrackBase;
class TrackListBase : public RefCounted<TrackListBase>, public EventTarget {
public:
~TrackListBase();
virtual unsigned length() const;
virtual bool contains(TrackBase*) const;
virtual void remove(TrackBase*);
virtual const AtomicString& interfaceName() const = 0;
using RefCounted<TrackListBase>::ref;
using RefCounted<TrackListBase>::deref;
virtual ScriptExecutionContext* scriptExecutionContext() const { return m_context; }
DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack);
DEFINE_ATTRIBUTE_EVENT_LISTENER(change);
DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack);
void clearElement() { m_element = 0; }
Element* element() const;
HTMLMediaElement* mediaElement() const { return m_element; }
bool isFiringEventListeners() { return m_dispatchingEvents; }
void scheduleChangeEvent();
protected:
TrackListBase(HTMLMediaElement*, ScriptExecutionContext*);
void scheduleAddTrackEvent(PassRefPtr<TrackBase>);
void scheduleRemoveTrackEvent(PassRefPtr<TrackBase>);
Vector<RefPtr<TrackBase> > m_inbandTracks;
private:
virtual void refEventTarget() OVERRIDE { ref(); }
virtual void derefEventTarget() OVERRIDE { deref(); }
virtual EventTargetData* eventTargetData() OVERRIDE { return &m_eventTargetData; }
virtual EventTargetData* ensureEventTargetData() OVERRIDE { return &m_eventTargetData; }
void asyncEventTimerFired(Timer<TrackListBase>*);
ScriptExecutionContext* m_context;
HTMLMediaElement* m_element;
Vector<RefPtr<Event> > m_pendingEvents;
Timer<TrackListBase> m_pendingEventTimer;
EventTargetData m_eventTargetData;
int m_dispatchingEvents;
};
}
#endif
#endif