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#if ENABLE(VIDEO_TRACK)
30#include "HTMLElement.h"
31#include "LoadableTextTrack.h"
32#include "TextTrack.h"
33
34namespace WebCore {
35
36class HTMLMediaElement;
37
38class HTMLTrackElement FINAL : public HTMLElement, public TextTrackClient {
39public:
40    static PassRefPtr<HTMLTrackElement> create(const QualifiedName&, Document*);
41
42    KURL src() const;
43    void setSrc(const String&);
44
45    String kind();
46    void setKind(const String&);
47
48    String srclang() const;
49    void setSrclang(const String&);
50
51    String label() const;
52    void setLabel(const String&);
53
54    bool isDefault() const;
55    void setIsDefault(bool);
56
57    enum ReadyState { NONE = 0, LOADING = 1, LOADED = 2, TRACK_ERROR = 3 };
58    ReadyState readyState();
59    void setReadyState(ReadyState);
60
61    TextTrack* track();
62
63    void scheduleLoad();
64
65    enum LoadStatus { Failure, Success };
66    virtual void didCompleteLoad(LoadableTextTrack*, LoadStatus);
67
68    const AtomicString& mediaElementCrossOriginAttribute() const;
69
70private:
71    HTMLTrackElement(const QualifiedName&, Document*);
72    virtual ~HTMLTrackElement();
73
74    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
75
76    virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
77
78    virtual void removedFrom(ContainerNode*) OVERRIDE;
79    virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
80
81    void loadTimerFired(Timer<HTMLTrackElement>*);
82
83#if ENABLE(MICRODATA)
84    virtual String itemValueText() const OVERRIDE;
85    virtual void setItemValueText(const String&, ExceptionCode&) OVERRIDE;
86#endif
87
88    HTMLMediaElement* mediaElement() const;
89
90    // TextTrackClient
91    virtual void textTrackModeChanged(TextTrack*);
92    virtual void textTrackKindChanged(TextTrack*);
93    virtual void textTrackAddCues(TextTrack*, const TextTrackCueList*);
94    virtual void textTrackRemoveCues(TextTrack*, const TextTrackCueList*);
95    virtual void textTrackAddCue(TextTrack*, PassRefPtr<TextTrackCue>);
96    virtual void textTrackRemoveCue(TextTrack*, PassRefPtr<TextTrackCue>);
97
98    LoadableTextTrack* ensureTrack();
99    virtual bool canLoadUrl(const KURL&);
100
101    RefPtr<LoadableTextTrack> m_track;
102    Timer<HTMLTrackElement> m_loadTimer;
103};
104
105}
106
107#endif
108#endif
109