Oilpan: add transition types to track interface objects.

Source/core/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 288 matching lines @@
 }
 
 HTMLMediaElement::~HTMLMediaElement()
 {
     WTF_LOG(Media, "HTMLMediaElement::~HTMLMediaElement");
 
     m_asyncEventQueue->close();
 
     setShouldDelayLoadEvent(false);
 
-    if (m_textTracks)
+    if (m_textTracks) {
         m_textTracks->clearOwner();
+        m_textTracks->dispose();

[haraken, 2014/04/22 02:37:47]

Can we merge clearOwner() into dispose()?

[sof, 2014/04/22 06:27:52]

Done; dispose() remained.

+    }
 
     if (m_mediaController) {
         m_mediaController->removeMediaElement(this);
         m_mediaController = nullptr;
     }
 
     closeMediaSource();
 
     removeElementFromDocumentMap(this, &document());
 
@@ skipping 933 matching lines @@
 
 void HTMLMediaElement::textTrackRemoveCues(TextTrack*, const TextTrackCueList* cues)
 {
     WTF_LOG(Media, "HTMLMediaElement::textTrackRemoveCues");
 
     TrackDisplayUpdateScope scope(this);
     for (size_t i = 0; i < cues->length(); ++i)
         textTrackRemoveCue(cues->item(i)->track(), cues->item(i));
 }
 
-void HTMLMediaElement::textTrackAddCue(TextTrack* track, PassRefPtr<TextTrackCue> cue)
+void HTMLMediaElement::textTrackAddCue(TextTrack* track, PassRefPtrWillBeRawPtr<TextTrackCue> cue)
 {
     if (track->mode() == TextTrack::disabledKeyword())
         return;
 
     // Negative duration cues need be treated in the interval tree as
     // zero-length cues.
     double endTime = max(cue->startTime(), cue->endTime());
 
     CueInterval interval = m_cueTree.createInterval(cue->startTime(), endTime, cue.get());
     if (!m_cueTree.contains(interval))
         m_cueTree.add(interval);
     updateActiveTextTrackCues(currentTime());
 }
 
-void HTMLMediaElement::textTrackRemoveCue(TextTrack*, PassRefPtr<TextTrackCue> cue)
+void HTMLMediaElement::textTrackRemoveCue(TextTrack*, PassRefPtrWillBeRawPtr<TextTrackCue> cue)
 {
     // Negative duration cues need to be treated in the interval tree as
     // zero-length cues.
     double endTime = max(cue->startTime(), cue->endTime());
 
     CueInterval interval = m_cueTree.createInterval(cue->startTime(), endTime, cue.get());
     m_cueTree.remove(interval);
 
     // Since the cue will be removed from the media element and likely the
     // TextTrack might also be destructed, notifying the region of the cue
@@ skipping 999 matching lines @@
 
 void HTMLMediaElement::forgetResourceSpecificTracks()
 {
     if (m_textTracks) {
         TrackDisplayUpdateScope scope(this);
         m_textTracks->removeAllInbandTracks();
         closeCaptionTracksChanged();
     }
 }
 
-PassRefPtr<TextTrack> HTMLMediaElement::addTextTrack(const AtomicString& kind, const AtomicString& label, const AtomicString& language, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<TextTrack> HTMLMediaElement::addTextTrack(const AtomicString& kind, const AtomicString& label, const AtomicString& language, ExceptionState& exceptionState)
 {
     // 4.8.10.12.4 Text track API
     // The addTextTrack(kind, label, language) method of media elements, when invoked, must run the following steps:
 
     // 1. If kind is not one of the following strings, then throw a SyntaxError exception and abort these steps
     if (!TextTrack::isValidKindKeyword(kind)) {
         exceptionState.throwDOMException(SyntaxError, "The 'kind' provided ('" + kind + "') is invalid.");
         return nullptr;
     }
 
     // 2. If the label argument was omitted, let label be the empty string.
     // 3. If the language argument was omitted, let language be the empty string.
     // 4. Create a new TextTrack object.
 
     // 5. Create a new text track corresponding to the new object, and set its text track kind to kind, its text
     // track label to label, its text track language to language...
-    RefPtr<TextTrack> textTrack = TextTrack::create(document(), kind, label, language);
+    RefPtrWillBeRawPtr<TextTrack> textTrack = TextTrack::create(document(), kind, label, language);
 
     // Note, due to side effects when changing track parameters, we have to
     // first append the track to the text track list.
 
     // 6. Add the new text track to the media element's list of text tracks.
     addTextTrack(textTrack.get());
 
     // ... its text track readiness state to the text track loaded state ...
     textTrack->setReadinessState(TextTrack::Loaded);
 
@@ skipping 10 matching lines @@
 
     return m_textTracks.get();
 }
 
 void HTMLMediaElement::didAddTrackElement(HTMLTrackElement* trackElement)
 {
     // 4.8.10.12.3 Sourcing out-of-band text tracks
     // When a track element's parent element changes and the new parent is a media element,
     // then the user agent must add the track element's corresponding text track to the
     // media element's list of text tracks ... [continues in TextTrackList::append]
-    RefPtr<TextTrack> textTrack = trackElement->track();
+    RefPtrWillBeRawPtr<TextTrack> textTrack = trackElement->track();
     if (!textTrack)
         return;
 
     addTextTrack(textTrack.get());
 
     // Do not schedule the track loading until parsing finishes so we don't start before all tracks
     // in the markup have been added.
     if (isFinishedParsingChildren())
         scheduleDelayedAction(LoadTextTrackResource);
 
     if (hasMediaControls())
         mediaControls()->closedCaptionTracksChanged();
 }
 
 void HTMLMediaElement::didRemoveTrackElement(HTMLTrackElement* trackElement)
 {
 #if !LOG_DISABLED
     KURL url = trackElement->getNonEmptyURLAttribute(srcAttr);
     WTF_LOG(Media, "HTMLMediaElement::didRemoveTrackElement - 'src' is %s", urlForLoggingMedia(url).utf8().data());
 #endif
 
-    RefPtr<TextTrack> textTrack = trackElement->track();
+    RefPtrWillBeRawPtr<TextTrack> textTrack = trackElement->track();
     if (!textTrack)
         return;
 
     textTrack->setHasBeenConfigured(false);
 
     if (!m_textTracks)
         return;
 
     // 4.8.10.12.3 Sourcing out-of-band text tracks
     // When a track element's parent element changes and the old parent was a media element,
@@ skipping 41 matching lines @@
 
 void HTMLMediaElement::configureTextTrackGroup(const TrackGroup& group)
 {
     ASSERT(group.tracks.size());
 
     WTF_LOG(Media, "HTMLMediaElement::configureTextTrackGroup(%d)", group.kind);
 
     Settings* settings = document().settings();
 
     // First, find the track in the group that should be enabled (if any).
-    Vector<RefPtr<TextTrack> > currentlyEnabledTracks;
-    RefPtr<TextTrack> trackToEnable;
-    RefPtr<TextTrack> defaultTrack;
-    RefPtr<TextTrack> fallbackTrack;
+    WillBeHeapVector<RefPtrWillBeMember<TextTrack> > currentlyEnabledTracks;
+    RefPtrWillBeRawPtr<TextTrack> trackToEnable = nullptr;
+    RefPtrWillBeRawPtr<TextTrack> defaultTrack = nullptr;
+    RefPtrWillBeRawPtr<TextTrack> fallbackTrack = nullptr;
     int highestTrackScore = 0;
     for (size_t i = 0; i < group.tracks.size(); ++i) {
-        RefPtr<TextTrack> textTrack = group.tracks[i];
+        RefPtrWillBeRawPtr<TextTrack> textTrack = group.tracks[i];
 
         if (m_processingPreferenceChange && textTrack->mode() == TextTrack::showingKeyword())
             currentlyEnabledTracks.append(textTrack);
 
         int trackScore = textTrackSelectionScore(*textTrack, settings);
         if (trackScore) {
             // * If the text track kind is { [subtitles or captions] [descriptions] } and the user has indicated an interest in having a
             // track with this text track kind, text track language, and text track label enabled, and there is no
             // other text track in the media element's list of text tracks with a text track kind of either subtitles
             // or captions whose text track mode is showing
@@ skipping 25 matching lines @@
     // If no track matches the user's preferred language and non was marked 'default', enable the first track
     // because the user has explicitly stated a preference for this kind of track.
     if (!fallbackTrack && m_closedCaptionsVisible && group.kind == TrackGroup::CaptionsAndSubtitles)
         fallbackTrack = group.tracks[0];
 
     if (!trackToEnable && fallbackTrack)
         trackToEnable = fallbackTrack;
 
     if (currentlyEnabledTracks.size()) {
         for (size_t i = 0; i < currentlyEnabledTracks.size(); ++i) {
-            RefPtr<TextTrack> textTrack = currentlyEnabledTracks[i];
+            RefPtrWillBeRawPtr<TextTrack> textTrack = currentlyEnabledTracks[i];
             if (textTrack != trackToEnable)
                 textTrack->setMode(TextTrack::disabledKeyword());
         }
     }
 
     if (trackToEnable)
         trackToEnable->setMode(TextTrack::showingKeyword());
 }
 
 void HTMLMediaElement::configureTextTracks()
 {
     TrackGroup captionAndSubtitleTracks(TrackGroup::CaptionsAndSubtitles);
     TrackGroup descriptionTracks(TrackGroup::Description);
     TrackGroup chapterTracks(TrackGroup::Chapter);
     TrackGroup metadataTracks(TrackGroup::Metadata);
     TrackGroup otherTracks(TrackGroup::Other);
 
     if (!m_textTracks)
         return;
 
     for (size_t i = 0; i < m_textTracks->length(); ++i) {
-        RefPtr<TextTrack> textTrack = m_textTracks->item(i);
+        RefPtrWillBeRawPtr<TextTrack> textTrack = m_textTracks->item(i);
         if (!textTrack)
             continue;
 
         String kind = textTrack->kind();
         TrackGroup* currentGroup;
         if (kind == TextTrack::subtitlesKeyword() || kind == TextTrack::captionsKeyword())
             currentGroup = &captionAndSubtitleTracks;
         else if (kind == TextTrack::descriptionsKeyword())
             currentGroup = &descriptionTracks;
         else if (kind == TextTrack::chaptersKeyword())
@@ skipping 868 matching lines @@
 {
     if (!m_textTracks)
         return;
 
     // Mark all tracks as not "configured" so that configureTextTracks()
     // will reconsider which tracks to display in light of new user preferences
     // (e.g. default tracks should not be displayed if the user has turned off
     // captions and non-default tracks should be displayed based on language
     // preferences if the user has turned captions on).
     for (unsigned i = 0; i < m_textTracks->length(); ++i) {
-        RefPtr<TextTrack> textTrack = m_textTracks->item(i);
+        RefPtrWillBeRawPtr<TextTrack> textTrack = m_textTracks->item(i);
         String kind = textTrack->kind();
 
         if (kind == TextTrack::subtitlesKeyword() || kind == TextTrack::captionsKeyword())
             textTrack->setHasBeenConfigured(false);
     }
     configureTextTracks();
 }
 
 bool HTMLMediaElement::willRespondToMouseClickEvents()
 {
@@ skipping 237 matching lines @@
     return fastHasAttribute(controlsAttr);
 }
 
 void HTMLMediaElement::trace(Visitor* visitor)
 {
     Supplementable<HTMLMediaElement>::trace(visitor);
     HTMLElement::trace(visitor);
 }
 
 }