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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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| 186 | 186 |
| 187 // 10. If URL is not the empty string, perform a potentially CORS-enabled fe
tch of URL, with the mode being CORS | 187 // 10. If URL is not the empty string, perform a potentially CORS-enabled fe
tch of URL, with the mode being CORS |
| 188 // mode, the origin being the origin of the track element's node document, a
nd the default origin behaviour set to | 188 // mode, the origin being the origin of the track element's node document, a
nd the default origin behaviour set to |
| 189 // fail. | 189 // fail. |
| 190 if (!canLoadUrl(url)) { | 190 if (!canLoadUrl(url)) { |
| 191 didCompleteLoad(Failure); | 191 didCompleteLoad(Failure); |
| 192 return; | 192 return; |
| 193 } | 193 } |
| 194 | 194 |
| 195 if (url == m_url) { | 195 if (url == m_url) { |
| 196 ASSERT(m_loader); | 196 DCHECK(m_loader); |
| 197 switch (m_loader->loadState()) { | 197 switch (m_loader->loadState()) { |
| 198 case TextTrackLoader::Idle: | 198 case TextTrackLoader::Idle: |
| 199 case TextTrackLoader::Loading: | 199 case TextTrackLoader::Loading: |
| 200 // If loading of the resource from this URL is in progress, return e
arly. | 200 // If loading of the resource from this URL is in progress, return e
arly. |
| 201 break; | 201 break; |
| 202 case TextTrackLoader::Finished: | 202 case TextTrackLoader::Finished: |
| 203 didCompleteLoad(Success); | 203 didCompleteLoad(Success); |
| 204 break; | 204 break; |
| 205 case TextTrackLoader::Failed: | 205 case TextTrackLoader::Failed: |
| 206 didCompleteLoad(Failure); | 206 didCompleteLoad(Failure); |
| 207 break; | 207 break; |
| 208 default: | 208 default: |
| 209 ASSERT_NOT_REACHED(); | 209 NOTREACHED(); |
| 210 } | 210 } |
| 211 return; | 211 return; |
| 212 } | 212 } |
| 213 | 213 |
| 214 m_url = url; | 214 m_url = url; |
| 215 | 215 |
| 216 if (m_loader) | 216 if (m_loader) |
| 217 m_loader->cancelLoad(); | 217 m_loader->cancelLoad(); |
| 218 | 218 |
| 219 m_loader = TextTrackLoader::create(*this, document()); | 219 m_loader = TextTrackLoader::create(*this, document()); |
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| 264 | 264 |
| 265 // If the fetching algorithm does not fail, and the file was successfully pr
ocessed, then the final task that is | 265 // If the fetching algorithm does not fail, and the file was successfully pr
ocessed, then the final task that is |
| 266 // queued by the networking task source, after it has finished parsing the d
ata, must change the text track | 266 // queued by the networking task source, after it has finished parsing the d
ata, must change the text track |
| 267 // readiness state to loaded, and fire a simple event named load at the trac
k element. | 267 // readiness state to loaded, and fire a simple event named load at the trac
k element. |
| 268 setReadyState(LOADED); | 268 setReadyState(LOADED); |
| 269 dispatchEvent(Event::create(EventTypeNames::load)); | 269 dispatchEvent(Event::create(EventTypeNames::load)); |
| 270 } | 270 } |
| 271 | 271 |
| 272 void HTMLTrackElement::newCuesAvailable(TextTrackLoader* loader) | 272 void HTMLTrackElement::newCuesAvailable(TextTrackLoader* loader) |
| 273 { | 273 { |
| 274 ASSERT_UNUSED(loader, m_loader == loader); | 274 DCHECK_EQ(m_loader, loader); |
| 275 ASSERT(m_track); | 275 DCHECK(m_track); |
| 276 | 276 |
| 277 HeapVector<Member<TextTrackCue>> newCues; | 277 HeapVector<Member<TextTrackCue>> newCues; |
| 278 m_loader->getNewCues(newCues); | 278 m_loader->getNewCues(newCues); |
| 279 | 279 |
| 280 m_track->addListOfCues(newCues); | 280 m_track->addListOfCues(newCues); |
| 281 } | 281 } |
| 282 | 282 |
| 283 void HTMLTrackElement::newRegionsAvailable(TextTrackLoader* loader) | 283 void HTMLTrackElement::newRegionsAvailable(TextTrackLoader* loader) |
| 284 { | 284 { |
| 285 ASSERT_UNUSED(loader, m_loader == loader); | 285 DCHECK_EQ(m_loader, loader); |
| 286 ASSERT(m_track); | 286 DCHECK(m_track); |
| 287 | 287 |
| 288 HeapVector<Member<VTTRegion>> newRegions; | 288 HeapVector<Member<VTTRegion>> newRegions; |
| 289 m_loader->getNewRegions(newRegions); | 289 m_loader->getNewRegions(newRegions); |
| 290 | 290 |
| 291 m_track->addRegions(newRegions); | 291 m_track->addRegions(newRegions); |
| 292 } | 292 } |
| 293 | 293 |
| 294 void HTMLTrackElement::cueLoadingCompleted(TextTrackLoader* loader, bool loading
Failed) | 294 void HTMLTrackElement::cueLoadingCompleted(TextTrackLoader* loader, bool loading
Failed) |
| 295 { | 295 { |
| 296 ASSERT_UNUSED(loader, m_loader == loader); | 296 DCHECK_EQ(m_loader, loader); |
| 297 | 297 |
| 298 didCompleteLoad(loadingFailed ? Failure : Success); | 298 didCompleteLoad(loadingFailed ? Failure : Success); |
| 299 } | 299 } |
| 300 | 300 |
| 301 // NOTE: The values in the TextTrack::ReadinessState enum must stay in sync with
those in HTMLTrackElement::ReadyState. | 301 // NOTE: The values in the TextTrack::ReadinessState enum must stay in sync with
those in HTMLTrackElement::ReadyState. |
| 302 static_assert(HTMLTrackElement::NONE == static_cast<HTMLTrackElement::ReadyState
>(TextTrack::NotLoaded), "HTMLTrackElement::NONE should be in sync with TextTrac
k::NotLoaded"); | 302 static_assert(HTMLTrackElement::NONE == static_cast<HTMLTrackElement::ReadyState
>(TextTrack::NotLoaded), "HTMLTrackElement::NONE should be in sync with TextTrac
k::NotLoaded"); |
| 303 static_assert(HTMLTrackElement::LOADING == static_cast<HTMLTrackElement::ReadySt
ate>(TextTrack::Loading), "HTMLTrackElement::LOADING should be in sync with Text
Track::Loading"); | 303 static_assert(HTMLTrackElement::LOADING == static_cast<HTMLTrackElement::ReadySt
ate>(TextTrack::Loading), "HTMLTrackElement::LOADING should be in sync with Text
Track::Loading"); |
| 304 static_assert(HTMLTrackElement::LOADED == static_cast<HTMLTrackElement::ReadySta
te>(TextTrack::Loaded), "HTMLTrackElement::LOADED should be in sync with TextTra
ck::Loaded"); | 304 static_assert(HTMLTrackElement::LOADED == static_cast<HTMLTrackElement::ReadySta
te>(TextTrack::Loaded), "HTMLTrackElement::LOADED should be in sync with TextTra
ck::Loaded"); |
| 305 static_assert(HTMLTrackElement::TRACK_ERROR == static_cast<HTMLTrackElement::Rea
dyState>(TextTrack::FailedToLoad), "HTMLTrackElement::TRACK_ERROR should be in s
ync with TextTrack::FailedToLoad"); | 305 static_assert(HTMLTrackElement::TRACK_ERROR == static_cast<HTMLTrackElement::Rea
dyState>(TextTrack::FailedToLoad), "HTMLTrackElement::TRACK_ERROR should be in s
ync with TextTrack::FailedToLoad"); |
| 306 | 306 |
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| 333 } | 333 } |
| 334 | 334 |
| 335 DEFINE_TRACE(HTMLTrackElement) | 335 DEFINE_TRACE(HTMLTrackElement) |
| 336 { | 336 { |
| 337 visitor->trace(m_track); | 337 visitor->trace(m_track); |
| 338 visitor->trace(m_loader); | 338 visitor->trace(m_loader); |
| 339 HTMLElement::trace(visitor); | 339 HTMLElement::trace(visitor); |
| 340 } | 340 } |
| 341 | 341 |
| 342 } // namespace blink | 342 } // namespace blink |
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