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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2011, 2012, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TextTrack_h
#define TextTrack_h
#include "core/events/EventTarget.h"
#include "core/html/track/TrackBase.h"
#include "platform/heap/Handle.h"
#include "wtf/text/WTFString.h"
namespace blink {
class ExceptionState;
class HTMLMediaElement;
class TextTrack;
class TextTrackCue;
class TextTrackCueList;
class TextTrackList;
class VTTRegion;
class VTTRegionList;
class TextTrack : public EventTargetWithInlineData, public TrackBase {
DEFINE_WRAPPERTYPEINFO();
REFCOUNTED_EVENT_TARGET(TrackBase);
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(TextTrack);
public:
static PassRefPtrWillBeRawPtr<TextTrack> create(const AtomicString& kind, const AtomicString& label, const AtomicString& language)
{
return adoptRefWillBeNoop(new TextTrack(kind, label, language, emptyAtom, AddTrack));
}
virtual ~TextTrack();
virtual void setTrackList(TextTrackList*);
TextTrackList* trackList() { return m_trackList; }
virtual void setKind(const AtomicString&) override;
static const AtomicString& subtitlesKeyword();
static const AtomicString& captionsKeyword();
static const AtomicString& descriptionsKeyword();
static const AtomicString& chaptersKeyword();
static const AtomicString& metadataKeyword();
static bool isValidKindKeyword(const String&);
static const AtomicString& disabledKeyword();
static const AtomicString& hiddenKeyword();
static const AtomicString& showingKeyword();
AtomicString mode() const { return m_mode; }
virtual void setMode(const AtomicString&);
enum ReadinessState { NotLoaded = 0, Loading = 1, Loaded = 2, FailedToLoad = 3 };
ReadinessState readinessState() const { return m_readinessState; }
void setReadinessState(ReadinessState state) { m_readinessState = state; }
TextTrackCueList* cues();
TextTrackCueList* activeCues() const;
HTMLMediaElement* mediaElement() const;
Node* owner() const;
void addCue(PassRefPtrWillBeRawPtr<TextTrackCue>);
void removeCue(TextTrackCue*, ExceptionState&);
VTTRegionList* regions();
void addRegion(PassRefPtrWillBeRawPtr<VTTRegion>);
void removeRegion(VTTRegion*, ExceptionState&);
void cueWillChange(TextTrackCue*);
void cueDidChange(TextTrackCue*);
DEFINE_ATTRIBUTE_EVENT_LISTENER(cuechange);
enum TextTrackType { TrackElement, AddTrack, InBand };
TextTrackType trackType() const { return m_trackType; }
int trackIndex();
void invalidateTrackIndex();
bool isRendered();
int trackIndexRelativeToRenderedTracks();
bool hasBeenConfigured() const { return m_hasBeenConfigured; }
void setHasBeenConfigured(bool flag) { m_hasBeenConfigured = flag; }
virtual bool isDefault() const { return false; }
virtual void setIsDefault(bool) { }
void removeAllCues();
// EventTarget methods
virtual const AtomicString& interfaceName() const override;
virtual ExecutionContext* executionContext() const override;
virtual void trace(Visitor*) override;
protected:
TextTrack(const AtomicString& kind, const AtomicString& label, const AtomicString& language, const AtomicString& id, TextTrackType);
virtual bool isValidKind(const AtomicString& kind) const override { return isValidKindKeyword(kind); }
virtual AtomicString defaultKind() const override { return subtitlesKeyword(); }
RefPtrWillBeMember<TextTrackCueList> m_cues;
private:
VTTRegionList* ensureVTTRegionList();
RefPtrWillBeMember<VTTRegionList> m_regions;
TextTrackCueList* ensureTextTrackCueList();
RawPtrWillBeMember<TextTrackList> m_trackList;
AtomicString m_mode;
TextTrackType m_trackType;
ReadinessState m_readinessState;
int m_trackIndex;
int m_renderedTrackIndex;
bool m_hasBeenConfigured;
};
DEFINE_TRACK_TYPE_CASTS(TextTrack, TrackBase::TextTrack);
} // namespace blink
#endif // TextTrack_h
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