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
33namespace WebCore {
34
35class HTMLMediaElement;
36
37class HTMLTrackElement FINAL : public HTMLElement, public TextTrackClient {
38public:
39    static PassRefPtr<HTMLTrackElement> create(Document&);
40
41    const AtomicString& kind();
42    void setKind(const AtomicString&);
43
44    enum ReadyState { NONE = 0, LOADING = 1, LOADED = 2, TRACK_ERROR = 3 };
45    ReadyState readyState();
46    void setReadyState(ReadyState);
47
48    TextTrack* track();
49
50    void scheduleLoad();
51
52    enum LoadStatus { Failure, Success };
53    void didCompleteLoad(LoadStatus);
54
55    const AtomicString& mediaElementCrossOriginAttribute() const;
56
57private:
58    explicit HTMLTrackElement(Document&);
59    virtual ~HTMLTrackElement();
60
61    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
62
63    virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
64
65    virtual void removedFrom(ContainerNode*) OVERRIDE;
66    virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
67
68    void loadTimerFired(Timer<HTMLTrackElement>*);
69
70    HTMLMediaElement* mediaElement() const;
71
72    // TextTrackClient
73    virtual void textTrackModeChanged(TextTrack*) OVERRIDE;
74    virtual void textTrackKindChanged(TextTrack*) OVERRIDE;
75    virtual void textTrackAddCues(TextTrack*, const TextTrackCueList*) OVERRIDE;
76    virtual void textTrackRemoveCues(TextTrack*, const TextTrackCueList*) OVERRIDE;
77    virtual void textTrackAddCue(TextTrack*, PassRefPtr<TextTrackCue>) OVERRIDE;
78    virtual void textTrackRemoveCue(TextTrack*, PassRefPtr<TextTrackCue>) OVERRIDE;
79
80    LoadableTextTrack* ensureTrack();
81    bool canLoadUrl(const KURL&);
82
83    RefPtr<LoadableTextTrack> m_track;
84    Timer<HTMLTrackElement> m_loadTimer;
85};
86
87DEFINE_NODE_TYPE_CASTS(HTMLTrackElement, hasTagName(HTMLNames::trackTag));
88
89}
90
91#endif
92