1/* 2 * Copyright (C) 2012, 2013 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 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 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 InbandTextTrack_h 27#define InbandTextTrack_h 28 29#if ENABLE(VIDEO_TRACK) 30 31#include "InbandTextTrackPrivateClient.h" 32#include "TextTrack.h" 33#include "TextTrackCueGeneric.h" 34#include <wtf/RefPtr.h> 35 36namespace WebCore { 37 38class InbandTextTrack : public TextTrack, public InbandTextTrackPrivateClient { 39public: 40 static PassRefPtr<InbandTextTrack> create(ScriptExecutionContext*, TextTrackClient*, PassRefPtr<InbandTextTrackPrivate>); 41 virtual ~InbandTextTrack(); 42 43 virtual bool isClosedCaptions() const override; 44 virtual bool isSDH() const override; 45 virtual bool containsOnlyForcedSubtitles() const override; 46 virtual bool isMainProgramContent() const override; 47 virtual bool isEasyToRead() const override; 48 virtual void setMode(const AtomicString&) override; 49 size_t inbandTrackIndex(); 50 51 virtual AtomicString inBandMetadataTrackDispatchType() const; 52 53 void setPrivate(PassRefPtr<InbandTextTrackPrivate>); 54 55 virtual bool isInband() const override { return true; } 56 57protected: 58 InbandTextTrack(ScriptExecutionContext*, TextTrackClient*, PassRefPtr<InbandTextTrackPrivate>); 59 60 void setModeInternal(const AtomicString&); 61 void updateKindFromPrivate(); 62 63 RefPtr<InbandTextTrackPrivate> m_private; 64 65private: 66 67 virtual void idChanged(TrackPrivateBase*, const AtomicString&) override; 68 virtual void labelChanged(TrackPrivateBase*, const AtomicString&) override; 69 virtual void languageChanged(TrackPrivateBase*, const AtomicString&) override; 70 virtual void willRemove(TrackPrivateBase*) override; 71 72 virtual void addDataCue(InbandTextTrackPrivate*, double, double, const void*, unsigned) override { ASSERT_NOT_REACHED(); } 73 74#if ENABLE(DATACUE_VALUE) 75 virtual void addDataCue(InbandTextTrackPrivate*, double, double, PassRefPtr<SerializedPlatformRepresentation>, const String&) override { ASSERT_NOT_REACHED(); } 76 virtual void updateDataCue(InbandTextTrackPrivate*, double, double, PassRefPtr<SerializedPlatformRepresentation>) override { ASSERT_NOT_REACHED(); } 77 virtual void removeDataCue(InbandTextTrackPrivate*, double, double, PassRefPtr<SerializedPlatformRepresentation>) override { ASSERT_NOT_REACHED(); } 78#endif 79 80 virtual void addGenericCue(InbandTextTrackPrivate*, PassRefPtr<GenericCueData>) override { ASSERT_NOT_REACHED(); } 81 virtual void updateGenericCue(InbandTextTrackPrivate*, GenericCueData*) override { ASSERT_NOT_REACHED(); } 82 virtual void removeGenericCue(InbandTextTrackPrivate*, GenericCueData*) override { ASSERT_NOT_REACHED(); } 83 84 virtual void parseWebVTTFileHeader(InbandTextTrackPrivate*, String) override { ASSERT_NOT_REACHED(); } 85 virtual void parseWebVTTCueData(InbandTextTrackPrivate*, const char*, unsigned) override { ASSERT_NOT_REACHED(); } 86 virtual void parseWebVTTCueData(InbandTextTrackPrivate*, const ISOWebVTTCue&) override { ASSERT_NOT_REACHED(); } 87 88 virtual double startTimeVariance() const; 89 90#if USE(PLATFORM_TEXT_TRACK_MENU) 91 virtual InbandTextTrackPrivate* privateTrack() override { return m_private.get(); } 92#endif 93}; 94 95TYPE_CASTS_BASE(InbandTextTrack, TextTrack, track, track->isInband(), track.isInband()); 96 97} // namespace WebCore 98 99#endif 100#endif 101