2 * Copyright (C) 2011 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
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11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 #ifndef TextTrackList_h
27 #define TextTrackList_h
29 #if ENABLE(VIDEO_TRACK)
31 #include "EventListener.h"
32 #include "EventTarget.h"
35 #include <wtf/PassRefPtr.h>
36 #include <wtf/RefCounted.h>
37 #include <wtf/Vector.h>
41 class HTMLMediaElement;
45 class TextTrackList : public RefCounted<TextTrackList>, public EventTarget {
47 static PassRefPtr<TextTrackList> create(HTMLMediaElement* owner, ScriptExecutionContext* context)
49 return adoptRef(new TextTrackList(owner, context));
53 unsigned length() const;
54 TextTrack* item(unsigned index);
55 void append(PassRefPtr<TextTrack>);
56 void remove(PassRefPtr<TextTrack>);
59 virtual const AtomicString& interfaceName() const;
60 using RefCounted<TextTrackList>::ref;
61 using RefCounted<TextTrackList>::deref;
62 virtual ScriptExecutionContext* scriptExecutionContext() const { return m_context; }
64 DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack);
66 void clearOwner() { m_owner = 0; }
67 HTMLMediaElement* owner() { return m_owner; }
69 bool isFiringEventListeners() { return m_dispatchingEvents; }
72 TextTrackList(HTMLMediaElement*, ScriptExecutionContext*);
75 virtual void refEventTarget() { ref(); }
76 virtual void derefEventTarget() { deref(); }
77 virtual EventTargetData* eventTargetData() { return &m_eventTargetData; }
78 virtual EventTargetData* ensureEventTargetData() { return &m_eventTargetData; }
80 void scheduleAddTrackEvent(PassRefPtr<TextTrack>);
81 void asyncEventTimerFired(Timer<TextTrackList>*);
83 ScriptExecutionContext* m_context;
84 HTMLMediaElement* m_owner;
86 Vector<RefPtr<Event> > m_pendingEvents;
87 Timer<TextTrackList> m_pendingEventTimer;
89 EventTargetData m_eventTargetData;
90 Vector<RefPtr<TextTrack> > m_addTrackTracks;
91 Vector<RefPtr<TextTrack> > m_elementTracks;
93 int m_dispatchingEvents;
96 } // namespace WebCore