1/*
2 * Copyright (C) 2012 Apple 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#include "config.h"
27#include "core/html/track/InbandTextTrack.h"
28
29#include "bindings/core/v8/ExceptionStatePlaceholder.h"
30#include "core/html/HTMLMediaElement.h"
31#include "core/html/track/vtt/VTTCue.h"
32#include "platform/Logging.h"
33#include "public/platform/WebInbandTextTrack.h"
34#include "public/platform/WebString.h"
35#include <math.h>
36
37using blink::WebInbandTextTrack;
38using blink::WebString;
39
40namespace blink {
41
42PassRefPtrWillBeRawPtr<InbandTextTrack> InbandTextTrack::create(WebInbandTextTrack* webTrack)
43{
44    return adoptRefWillBeNoop(new InbandTextTrack(webTrack));
45}
46
47InbandTextTrack::InbandTextTrack(WebInbandTextTrack* webTrack)
48    : TextTrack(emptyAtom, webTrack->label(), webTrack->language(), webTrack->id(), InBand)
49    , m_webTrack(webTrack)
50{
51    m_webTrack->setClient(this);
52
53    switch (m_webTrack->kind()) {
54    case WebInbandTextTrack::KindSubtitles:
55        setKind(TextTrack::subtitlesKeyword());
56        break;
57    case WebInbandTextTrack::KindCaptions:
58        setKind(TextTrack::captionsKeyword());
59        break;
60    case WebInbandTextTrack::KindDescriptions:
61        setKind(TextTrack::descriptionsKeyword());
62        break;
63    case WebInbandTextTrack::KindChapters:
64        setKind(TextTrack::chaptersKeyword());
65        break;
66    case WebInbandTextTrack::KindMetadata:
67        setKind(TextTrack::metadataKeyword());
68        break;
69    case WebInbandTextTrack::KindNone:
70    default:
71        ASSERT_NOT_REACHED();
72        break;
73    }
74}
75
76InbandTextTrack::~InbandTextTrack()
77{
78#if ENABLE(OILPAN)
79    if (m_webTrack)
80        m_webTrack->setClient(0);
81#else
82    // Make sure m_webTrack was cleared by trackRemoved() before destruction.
83    ASSERT(!m_webTrack);
84#endif
85}
86
87size_t InbandTextTrack::inbandTrackIndex()
88{
89    ASSERT(m_webTrack);
90    return m_webTrack->textTrackIndex();
91}
92
93void InbandTextTrack::setTrackList(TextTrackList* trackList)
94{
95    TextTrack::setTrackList(trackList);
96    if (trackList)
97        return;
98
99    ASSERT(m_webTrack);
100    m_webTrack->setClient(0);
101    m_webTrack = 0;
102}
103
104void InbandTextTrack::addWebVTTCue(double start, double end, const WebString& id, const WebString& content, const WebString& settings)
105{
106    HTMLMediaElement* owner = mediaElement();
107    ASSERT(owner);
108    RefPtrWillBeRawPtr<VTTCue> cue = VTTCue::create(owner->document(), start, end, content);
109    cue->setId(id);
110    cue->parseSettings(settings);
111    addCue(cue);
112}
113
114} // namespace blink
115