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34 #if ENABLE(VIDEO_TRACK)
37 #include <wtf/MediaTime.h>
43 class TextTrackCue : public RefCounted<TextTrackCue>, public EventTargetWithInlineData {
45 static const AtomicString& cueShadowPseudoId();
47 TextTrack* track() const;
48 void setTrack(TextTrack*);
50 const String& id() const { return m_id; }
51 void setId(const String&);
53 double startTime() const { return startMediaTime().toDouble(); }
54 void setStartTime(double);
56 double endTime() const { return endMediaTime().toDouble(); }
57 void setEndTime(double);
59 bool pauseOnExit() const { return m_pauseOnExit; }
60 void setPauseOnExit(bool);
62 MediaTime startMediaTime() const { return m_startTime; }
63 void setStartTime(const MediaTime&);
65 MediaTime endMediaTime() const { return m_endTime; }
66 void setEndTime(const MediaTime&);
69 void invalidateCueIndex();
72 virtual void setIsActive(bool);
74 virtual bool isOrderedBefore(const TextTrackCue*) const;
75 virtual bool isPositionedAbove(const TextTrackCue* cue) const { return isOrderedBefore(cue); }
77 bool hasEquivalentStartTime(const TextTrackCue&) const;
79 enum CueType { Data, Generic, WebVTT };
80 virtual CueType cueType() const = 0;
81 virtual bool isRenderable() const { return false; }
83 enum CueMatchRules { MatchAllFields, IgnoreDuration };
84 virtual bool isEqual(const TextTrackCue&, CueMatchRules) const;
86 virtual bool cueContentsMatch(const TextTrackCue&) const;
88 virtual bool doesExtendCue(const TextTrackCue&) const;
91 virtual void didChange();
93 using RefCounted::ref;
94 using RefCounted::deref;
97 TextTrackCue(ScriptExecutionContext&, const MediaTime& start, const MediaTime& end);
99 Document& ownerDocument() { return downcast<Document>(m_scriptExecutionContext); }
102 void refEventTarget() final { ref(); }
103 void derefEventTarget() final { deref(); }
105 using EventTarget::dispatchEvent;
106 bool dispatchEvent(Event&) final;
108 EventTargetInterface eventTargetInterface() const final { return TextTrackCueEventTargetInterfaceType; }
109 ScriptExecutionContext* scriptExecutionContext() const final { return &m_scriptExecutionContext; }
112 MediaTime m_startTime;
115 int m_processingCueChanges;
119 ScriptExecutionContext& m_scriptExecutionContext;
122 bool m_pauseOnExit : 1;
125 } // namespace WebCore