1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * Copyright (C) 2012, 2013 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef TextTrackCue_h 33 #define TextTrackCue_h 34 35 #include "core/events/EventTarget.h" 36 #include "core/html/HTMLDivElement.h" 37 #include "platform/heap/Handle.h" 38 #include "wtf/RefCounted.h" 39 40 namespace blink { 41 42 class ExceptionState; 43 44 class TextTrackCue : public RefCountedWillBeGarbageCollectedFinalized<TextTrackCue>, public EventTargetWithInlineData { 45 DEFINE_WRAPPERTYPEINFO(); 46 REFCOUNTED_EVENT_TARGET(TextTrackCue); 47 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(TextTrackCue); 48 public: cueShadowPseudoId()49 static const AtomicString& cueShadowPseudoId() 50 { 51 DEFINE_STATIC_LOCAL(const AtomicString, cue, ("cue", AtomicString::ConstructFromLiteral)); 52 return cue; 53 } 54 ~TextTrackCue()55 virtual ~TextTrackCue() { } 56 57 TextTrack* track() const; 58 void setTrack(TextTrack*); 59 60 Node* owner() const; 61 id()62 const AtomicString& id() const { return m_id; } 63 void setId(const AtomicString&); 64 startTime()65 double startTime() const { return m_startTime; } 66 void setStartTime(double); 67 endTime()68 double endTime() const { return m_endTime; } 69 void setEndTime(double); 70 pauseOnExit()71 bool pauseOnExit() const { return m_pauseOnExit; } 72 void setPauseOnExit(bool); 73 74 int cueIndex(); 75 void invalidateCueIndex(); 76 77 using EventTarget::dispatchEvent; 78 virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE; 79 80 bool isActive(); 81 void setIsActive(bool); 82 83 virtual void updateDisplay(const IntSize& videoSize, HTMLDivElement& container) = 0; 84 85 // FIXME: Consider refactoring to eliminate or merge the following three members. 86 // https://code.google.com/p/chromium/issues/detail?id=322434 87 virtual void updateDisplayTree(double movieTime) = 0; 88 virtual void removeDisplayTree() = 0; 89 virtual void notifyRegionWhenRemovingDisplayTree(bool notifyRegion) = 0; 90 91 virtual const AtomicString& interfaceName() const OVERRIDE; 92 93 #ifndef NDEBUG 94 virtual String toString() const = 0; 95 #endif 96 97 DEFINE_ATTRIBUTE_EVENT_LISTENER(enter); 98 DEFINE_ATTRIBUTE_EVENT_LISTENER(exit); 99 100 virtual void trace(Visitor*) OVERRIDE; 101 102 protected: 103 TextTrackCue(double start, double end); 104 105 void cueWillChange(); 106 virtual void cueDidChange(); 107 108 private: 109 AtomicString m_id; 110 double m_startTime; 111 double m_endTime; 112 int m_cueIndex; 113 114 RawPtrWillBeMember<TextTrack> m_track; 115 116 bool m_isActive : 1; 117 bool m_pauseOnExit : 1; 118 }; 119 120 } // namespace blink 121 122 #endif // TextTrackCue_h 123