1/*
2 * Copyright (C) 2012, 2014 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 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 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
28#if ENABLE(VIDEO_TRACK)
29
30#include "InbandWebVTTTextTrack.h"
31
32#include "InbandTextTrackPrivate.h"
33#include "Logging.h"
34#include "NotImplemented.h"
35#include <wtf/text/CString.h>
36
37#if ENABLE(WEBVTT_REGIONS)
38#include "VTTRegionList.h"
39#endif
40
41namespace WebCore {
42
43PassRefPtr<InbandTextTrack> InbandWebVTTTextTrack::create(ScriptExecutionContext* context, TextTrackClient* client, PassRefPtr<InbandTextTrackPrivate> playerPrivate)
44{
45    return adoptRef(new InbandWebVTTTextTrack(context, client, playerPrivate));
46}
47
48InbandWebVTTTextTrack::InbandWebVTTTextTrack(ScriptExecutionContext* context, TextTrackClient* client, PassRefPtr<InbandTextTrackPrivate> trackPrivate)
49    : InbandTextTrack(context, client, trackPrivate)
50{
51}
52
53InbandWebVTTTextTrack::~InbandWebVTTTextTrack()
54{
55}
56
57WebVTTParser& InbandWebVTTTextTrack::parser()
58{
59    if (!m_webVTTParser)
60        m_webVTTParser = std::make_unique<WebVTTParser>(static_cast<WebVTTParserClient*>(this), scriptExecutionContext());
61    return *m_webVTTParser;
62}
63
64void InbandWebVTTTextTrack::parseWebVTTCueData(InbandTextTrackPrivate* trackPrivate, const char* data, unsigned length)
65{
66    ASSERT_UNUSED(trackPrivate, trackPrivate == m_private);
67    parser().parseBytes(data, length);
68}
69
70void InbandWebVTTTextTrack::parseWebVTTCueData(InbandTextTrackPrivate* trackPrivate, const ISOWebVTTCue& cueData)
71{
72    ASSERT_UNUSED(trackPrivate, trackPrivate == m_private);
73    parser().parseCueData(cueData);
74}
75
76void InbandWebVTTTextTrack::newCuesParsed()
77{
78    Vector<RefPtr<WebVTTCueData>> cues;
79    parser().getNewCues(cues);
80
81    for (auto& cueData : cues) {
82        RefPtr<VTTCue> vttCue = VTTCue::create(*scriptExecutionContext(), *cueData);
83
84        if (hasCue(vttCue.get(), TextTrackCue::IgnoreDuration)) {
85            LOG(Media, "InbandWebVTTTextTrack::newCuesParsed ignoring already added cue: start=%.2f, end=%.2f, content=\"%s\"\n", vttCue->startTime(), vttCue->endTime(), vttCue->text().utf8().data());
86            return;
87        }
88        addCue(vttCue.release(), ASSERT_NO_EXCEPTION);
89    }
90}
91
92#if ENABLE(WEBVTT_REGIONS)
93void InbandWebVTTTextTrack::newRegionsParsed()
94{
95    Vector<RefPtr<VTTRegion>> newRegions;
96    parser().getNewRegions(newRegions);
97
98    for (auto& region : newRegions) {
99        region->setTrack(this);
100        regions()->add(region);
101    }
102}
103#endif
104
105void InbandWebVTTTextTrack::fileFailedToParse()
106{
107    LOG(Media, "Error parsing WebVTT stream.");
108}
109
110} // namespace WebCore
111
112#endif
113