1 /* 2 * Copyright (C) 2011, 2012 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 COMPUTER, 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 COMPUTER, 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 #ifndef TextTrackList_h 27 #define TextTrackList_h 28 29 #include "bindings/v8/ScriptWrappable.h" 30 #include "core/events/EventListener.h" 31 #include "core/events/EventTarget.h" 32 #include "core/html/HTMLMediaElement.h" 33 #include "platform/Timer.h" 34 #include "platform/heap/Handle.h" 35 #include "wtf/PassRefPtr.h" 36 #include "wtf/RefCounted.h" 37 #include "wtf/Vector.h" 38 39 namespace WebCore { 40 41 class GenericEventQueue; 42 class TextTrack; 43 44 class TextTrackList FINAL : public RefCountedWillBeRefCountedGarbageCollected<TextTrackList>, public ScriptWrappable, public EventTargetWithInlineData { 45 REFCOUNTED_EVENT_TARGET(TextTrackList); 46 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(TextTrackList); 47 public: 48 static PassRefPtrWillBeRawPtr<TextTrackList> create(HTMLMediaElement* owner) 49 { 50 return adoptRefWillBeRefCountedGarbageCollected(new TextTrackList(owner)); 51 } 52 virtual ~TextTrackList(); 53 54 unsigned length() const; 55 int getTrackIndex(TextTrack*); 56 int getTrackIndexRelativeToRenderedTracks(TextTrack*); 57 bool contains(TextTrack*) const; 58 59 TextTrack* item(unsigned index); 60 TextTrack* getTrackById(const AtomicString& id); 61 void append(PassRefPtrWillBeRawPtr<TextTrack>); 62 void remove(TextTrack*); 63 64 // EventTarget 65 virtual const AtomicString& interfaceName() const OVERRIDE; 66 virtual ExecutionContext* executionContext() const OVERRIDE; 67 68 DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack); 69 DEFINE_ATTRIBUTE_EVENT_LISTENER(change); 70 DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack); 71 72 #if !ENABLE(OILPAN) 73 void clearOwner(); 74 #endif 75 HTMLMediaElement* owner() const; 76 77 void scheduleChangeEvent(); 78 void removeAllInbandTracks(); 79 80 virtual void trace(Visitor*) OVERRIDE; 81 82 private: 83 explicit TextTrackList(HTMLMediaElement*); 84 85 void scheduleTrackEvent(const AtomicString& eventName, PassRefPtrWillBeRawPtr<TextTrack>); 86 87 void scheduleAddTrackEvent(PassRefPtrWillBeRawPtr<TextTrack>); 88 void scheduleRemoveTrackEvent(PassRefPtrWillBeRawPtr<TextTrack>); 89 90 void invalidateTrackIndexesAfterTrack(TextTrack*); 91 92 RawPtrWillBeMember<HTMLMediaElement> m_owner; 93 94 OwnPtrWillBeMember<GenericEventQueue> m_asyncEventQueue; 95 96 WillBeHeapVector<RefPtrWillBeMember<TextTrack> > m_addTrackTracks; 97 WillBeHeapVector<RefPtrWillBeMember<TextTrack> > m_elementTracks; 98 WillBeHeapVector<RefPtrWillBeMember<TextTrack> > m_inbandTracks; 99 }; 100 101 } // namespace WebCore 102 103 #endif 104
