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#if ENABLE(VIDEO_TRACK) 30 31#include "EventTarget.h" 32#include <wtf/RefCounted.h> 33 34namespace WebCore { 35 36class Element; 37class HTMLMediaElement; 38 39class TrackBase : public RefCounted<TrackBase> { 40public: 41 virtual ~TrackBase(); 42 43 enum Type { BaseTrack, TextTrack, AudioTrack, VideoTrack }; 44 Type type() const { return m_type; } 45 46 void setMediaElement(HTMLMediaElement* element) { m_mediaElement = element; } 47 HTMLMediaElement* mediaElement() { return m_mediaElement; } 48 virtual Element* element(); 49 50 AtomicString kind() const { return m_kind; } 51 virtual void setKind(const AtomicString&); 52 53 AtomicString label() const { return m_label; } 54 void setLabel(const AtomicString& label) { m_label = label; } 55 56 AtomicString language() const { return m_language; } 57 void setLanguage(const AtomicString& language) { m_language = language; } 58 59 virtual void clearClient() = 0; 60 61protected: 62 TrackBase(Type, const AtomicString& label, const AtomicString& language); 63 64 virtual bool isValidKind(const AtomicString&) const = 0; 65 virtual const AtomicString& defaultKindKeyword() const = 0; 66 67 HTMLMediaElement* m_mediaElement; 68 69private: 70 Type m_type; 71 AtomicString m_kind; 72 AtomicString m_label; 73 AtomicString m_language; 74}; 75 76} // namespace WebCore 77 78#endif 79#endif // TrackBase_h 80