1 /* 2 * Copyright (C) 2011 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 TrackBase_h 27 #define TrackBase_h 28 29 #include "platform/heap/Handle.h" 30 #include "public/platform/WebMediaPlayer.h" 31 #include "wtf/RefCounted.h" 32 #include "wtf/text/AtomicString.h" 33 34 namespace blink { 35 36 class HTMLMediaElement; 37 38 class TrackBase : public RefCountedWillBeGarbageCollectedFinalized<TrackBase> { 39 public: 40 virtual ~TrackBase(); 41 trackId()42 blink::WebMediaPlayer::TrackId trackId() const { return m_trackId; } 43 44 enum Type { TextTrack, AudioTrack, VideoTrack }; type()45 Type type() const { return m_type; } 46 kind()47 const AtomicString& kind() const { return m_kind; } 48 virtual void setKind(const AtomicString&); 49 label()50 AtomicString label() const { return m_label; } setLabel(const AtomicString & label)51 void setLabel(const AtomicString& label) { m_label = label; } 52 language()53 AtomicString language() const { return m_language; } setLanguage(const AtomicString & language)54 void setLanguage(const AtomicString& language) { m_language = language; } 55 id()56 String id() const { return m_id; } setId(const String & id)57 void setId(const String& id) { m_id = id; } 58 setMediaElement(HTMLMediaElement * mediaElement)59 void setMediaElement(HTMLMediaElement* mediaElement) { m_mediaElement = mediaElement; } mediaElement()60 HTMLMediaElement* mediaElement() const { return m_mediaElement; } 61 Node* owner() const; 62 63 virtual void trace(Visitor*); 64 65 protected: 66 TrackBase(Type, const AtomicString& label, const AtomicString& language, const String& id); 67 68 virtual bool isValidKind(const AtomicString&) const = 0; 69 virtual AtomicString defaultKind() const = 0; 70 71 private: 72 blink::WebMediaPlayer::TrackId m_trackId; 73 Type m_type; 74 AtomicString m_kind; 75 AtomicString m_label; 76 AtomicString m_language; 77 String m_id; 78 RawPtrWillBeMember<HTMLMediaElement> m_mediaElement; 79 }; 80 81 #define DEFINE_TRACK_TYPE_CASTS(thisType, predicate) \ 82 DEFINE_TYPE_CASTS(thisType, TrackBase, track, track->type() == predicate, track.type() == predicate) 83 84 } // namespace blink 85 86 #endif // TrackBase_h 87