1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
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
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef HTMLTrackElement_h
27#define HTMLTrackElement_h
28
29#include "core/html/HTMLElement.h"
30#include "core/html/track/LoadableTextTrack.h"
31#include "core/html/track/TextTrack.h"
32#include "platform/heap/Handle.h"
33
34namespace blink {
35
36class HTMLMediaElement;
37
38class HTMLTrackElement FINAL : public HTMLElement {
39    DEFINE_WRAPPERTYPEINFO();
40public:
41    DECLARE_NODE_FACTORY(HTMLTrackElement);
42
43    const AtomicString& kind();
44    void setKind(const AtomicString&);
45
46    enum ReadyState { NONE = 0, LOADING = 1, LOADED = 2, TRACK_ERROR = 3 };
47    ReadyState readyState();
48    void setReadyState(ReadyState);
49
50    TextTrack* track();
51
52    void scheduleLoad();
53
54    enum LoadStatus { Failure, Success };
55    void didCompleteLoad(LoadStatus);
56
57    const AtomicString& mediaElementCrossOriginAttribute() const;
58
59    virtual void trace(Visitor*) OVERRIDE;
60
61private:
62    explicit HTMLTrackElement(Document&);
63    virtual ~HTMLTrackElement();
64
65    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
66
67    virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
68
69    virtual void removedFrom(ContainerNode*) OVERRIDE;
70    virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
71
72    void loadTimerFired(Timer<HTMLTrackElement>*);
73
74    HTMLMediaElement* mediaElement() const;
75
76    LoadableTextTrack* ensureTrack();
77    bool canLoadUrl(const KURL&);
78
79    RefPtrWillBeMember<LoadableTextTrack> m_track;
80    Timer<HTMLTrackElement> m_loadTimer;
81};
82
83} // namespace blink
84
85#endif // HTMLTrackElement_h
86