1 | /* |
2 | * Copyright (C) 2012-2017 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 | #include "InbandGenericTextTrack.h" |
28 | |
29 | #if ENABLE(VIDEO_TRACK) |
30 | |
31 | #include "DataCue.h" |
32 | #include "HTMLMediaElement.h" |
33 | #include "InbandTextTrackPrivate.h" |
34 | #include "Logging.h" |
35 | #include "VTTRegionList.h" |
36 | #include <math.h> |
37 | #include <wtf/IsoMallocInlines.h> |
38 | #include <wtf/text/CString.h> |
39 | |
40 | namespace WebCore { |
41 | |
42 | WTF_MAKE_ISO_ALLOCATED_IMPL(InbandGenericTextTrack); |
43 | |
44 | void GenericTextTrackCueMap::add(GenericCueData& cueData, TextTrackCueGeneric& cue) |
45 | { |
46 | m_dataToCueMap.add(&cueData, &cue); |
47 | m_cueToDataMap.add(&cue, &cueData); |
48 | } |
49 | |
50 | TextTrackCueGeneric* GenericTextTrackCueMap::find(GenericCueData& cueData) |
51 | { |
52 | return m_dataToCueMap.get(&cueData); |
53 | } |
54 | |
55 | GenericCueData* GenericTextTrackCueMap::find(TextTrackCue& cue) |
56 | { |
57 | return m_cueToDataMap.get(&cue); |
58 | } |
59 | |
60 | void GenericTextTrackCueMap::remove(GenericCueData& cueData) |
61 | { |
62 | if (auto cue = m_dataToCueMap.take(&cueData)) |
63 | m_cueToDataMap.remove(cue); |
64 | } |
65 | |
66 | void GenericTextTrackCueMap::remove(TextTrackCue& cue) |
67 | { |
68 | if (auto data = m_cueToDataMap.take(&cue)) |
69 | m_dataToCueMap.remove(data); |
70 | } |
71 | |
72 | inline InbandGenericTextTrack::InbandGenericTextTrack(ScriptExecutionContext& context, TextTrackClient& client, InbandTextTrackPrivate& trackPrivate) |
73 | : InbandTextTrack(context, client, trackPrivate) |
74 | { |
75 | } |
76 | |
77 | Ref<InbandGenericTextTrack> InbandGenericTextTrack::create(ScriptExecutionContext& context, TextTrackClient& client, InbandTextTrackPrivate& trackPrivate) |
78 | { |
79 | return adoptRef(*new InbandGenericTextTrack(context, client, trackPrivate)); |
80 | } |
81 | |
82 | InbandGenericTextTrack::~InbandGenericTextTrack() = default; |
83 | |
84 | void InbandGenericTextTrack::updateCueFromCueData(TextTrackCueGeneric& cue, GenericCueData& cueData) |
85 | { |
86 | cue.willChange(); |
87 | |
88 | cue.setStartTime(cueData.startTime()); |
89 | MediaTime endTime = cueData.endTime(); |
90 | if (endTime.isPositiveInfinite() && mediaElement()) |
91 | endTime = mediaElement()->durationMediaTime(); |
92 | cue.setEndTime(endTime); |
93 | cue.setText(cueData.content()); |
94 | cue.setId(cueData.id()); |
95 | cue.setBaseFontSizeRelativeToVideoHeight(cueData.baseFontSize()); |
96 | cue.setFontSizeMultiplier(cueData.relativeFontSize()); |
97 | cue.setFontName(cueData.fontName()); |
98 | |
99 | if (cueData.position() > 0) |
100 | cue.setPosition(std::round(cueData.position())); |
101 | if (cueData.line() > 0) |
102 | cue.setLine(std::round(cueData.line())); |
103 | if (cueData.size() > 0) |
104 | cue.setSize(std::round(cueData.size())); |
105 | if (cueData.backgroundColor().isValid()) |
106 | cue.setBackgroundColor(cueData.backgroundColor().rgb()); |
107 | if (cueData.foregroundColor().isValid()) |
108 | cue.setForegroundColor(cueData.foregroundColor().rgb()); |
109 | if (cueData.highlightColor().isValid()) |
110 | cue.setHighlightColor(cueData.highlightColor().rgb()); |
111 | |
112 | if (cueData.align() == GenericCueData::Start) |
113 | cue.setAlign("start"_s ); |
114 | else if (cueData.align() == GenericCueData::Middle) |
115 | cue.setAlign("middle"_s ); |
116 | else if (cueData.align() == GenericCueData::End) |
117 | cue.setAlign("end"_s ); |
118 | cue.setSnapToLines(false); |
119 | |
120 | cue.didChange(); |
121 | } |
122 | |
123 | void InbandGenericTextTrack::addGenericCue(GenericCueData& cueData) |
124 | { |
125 | if (m_cueMap.find(cueData)) |
126 | return; |
127 | |
128 | auto cue = TextTrackCueGeneric::create(*scriptExecutionContext(), cueData.startTime(), cueData.endTime(), cueData.content()); |
129 | updateCueFromCueData(cue.get(), cueData); |
130 | if (hasCue(cue.ptr(), TextTrackCue::IgnoreDuration)) { |
131 | INFO_LOG(LOGIDENTIFIER, "ignoring already added cue: " , cue.get()); |
132 | return; |
133 | } |
134 | |
135 | INFO_LOG(LOGIDENTIFIER, "added cue: " , cue.get()); |
136 | |
137 | if (cueData.status() != GenericCueData::Complete) |
138 | m_cueMap.add(cueData, cue); |
139 | |
140 | addCue(WTFMove(cue)); |
141 | } |
142 | |
143 | void InbandGenericTextTrack::updateGenericCue(GenericCueData& cueData) |
144 | { |
145 | auto cue = makeRefPtr(m_cueMap.find(cueData)); |
146 | if (!cue) |
147 | return; |
148 | |
149 | updateCueFromCueData(*cue, cueData); |
150 | |
151 | if (cueData.status() == GenericCueData::Complete) |
152 | m_cueMap.remove(cueData); |
153 | } |
154 | |
155 | void InbandGenericTextTrack::removeGenericCue(GenericCueData& cueData) |
156 | { |
157 | auto cue = makeRefPtr(m_cueMap.find(cueData)); |
158 | if (cue) { |
159 | INFO_LOG(LOGIDENTIFIER, *cue); |
160 | removeCue(*cue); |
161 | } else |
162 | INFO_LOG(LOGIDENTIFIER, "UNABLE to find cue: " , cueData); |
163 | |
164 | } |
165 | |
166 | ExceptionOr<void> InbandGenericTextTrack::removeCue(TextTrackCue& cue) |
167 | { |
168 | auto result = TextTrack::removeCue(cue); |
169 | if (!result.hasException()) |
170 | m_cueMap.remove(cue); |
171 | return result; |
172 | } |
173 | |
174 | WebVTTParser& InbandGenericTextTrack::parser() |
175 | { |
176 | if (!m_webVTTParser) |
177 | m_webVTTParser = std::make_unique<WebVTTParser>(static_cast<WebVTTParserClient*>(this), scriptExecutionContext()); |
178 | return *m_webVTTParser; |
179 | } |
180 | |
181 | void InbandGenericTextTrack::parseWebVTTCueData(const ISOWebVTTCue& cueData) |
182 | { |
183 | parser().parseCueData(cueData); |
184 | } |
185 | |
186 | void InbandGenericTextTrack::parseWebVTTFileHeader(String&& ) |
187 | { |
188 | parser().parseFileHeader(WTFMove(header)); |
189 | } |
190 | |
191 | void InbandGenericTextTrack::newCuesParsed() |
192 | { |
193 | Vector<RefPtr<WebVTTCueData>> cues; |
194 | parser().getNewCues(cues); |
195 | |
196 | for (auto& cueData : cues) { |
197 | auto vttCue = VTTCue::create(*scriptExecutionContext(), *cueData); |
198 | |
199 | if (hasCue(vttCue.ptr(), TextTrackCue::IgnoreDuration)) { |
200 | INFO_LOG(LOGIDENTIFIER, "ignoring already added cue: " , vttCue.get()); |
201 | return; |
202 | } |
203 | |
204 | INFO_LOG(LOGIDENTIFIER, vttCue.get()); |
205 | |
206 | addCue(WTFMove(vttCue)); |
207 | } |
208 | } |
209 | |
210 | void InbandGenericTextTrack::newRegionsParsed() |
211 | { |
212 | Vector<RefPtr<VTTRegion>> newRegions; |
213 | parser().getNewRegions(newRegions); |
214 | |
215 | for (auto& region : newRegions) { |
216 | region->setTrack(this); |
217 | regions()->add(region.releaseNonNull()); |
218 | } |
219 | } |
220 | |
221 | void InbandGenericTextTrack::newStyleSheetsParsed() |
222 | { |
223 | } |
224 | |
225 | void InbandGenericTextTrack::fileFailedToParse() |
226 | { |
227 | ERROR_LOG(LOGIDENTIFIER); |
228 | } |
229 | |
230 | } // namespace WebCore |
231 | |
232 | #endif |
233 | |