#ifndef TextTrack_h
#define TextTrack_h
#if ENABLE(VIDEO_TRACK)
#include "ExceptionCode.h"
#include "TrackBase.h"
#include <wtf/PassOwnPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class HTMLMediaElement;
class TextTrack;
class TextTrackCue;
class TextTrackCueList;
class TextTrackClient {
public:
virtual ~TextTrackClient() { }
virtual void textTrackKindChanged(TextTrack*) = 0;
virtual void textTrackModeChanged(TextTrack*) = 0;
virtual void textTrackAddCues(TextTrack*, const TextTrackCueList*) = 0;
virtual void textTrackRemoveCues(TextTrack*, const TextTrackCueList*) = 0;
virtual void textTrackAddCue(TextTrack*, PassRefPtr<TextTrackCue>) = 0;
virtual void textTrackRemoveCue(TextTrack*, PassRefPtr<TextTrackCue>) = 0;
};
class TextTrack : public TrackBase {
public:
static PassRefPtr<TextTrack> create(ScriptExecutionContext* context, TextTrackClient* client, const String& kind, const String& label, const String& language)
{
return adoptRef(new TextTrack(context, client, kind, label, language, AddTrack));
}
virtual ~TextTrack();
void setMediaElement(HTMLMediaElement* element) { m_mediaElement = element; }
HTMLMediaElement* mediaElement() { return m_mediaElement; }
String kind() const { return m_kind; }
void setKind(const String&);
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&);
String label() const { return m_label; }
void setLabel(const String& label) { m_label = label; }
String language() const { return m_language; }
void setLanguage(const String& language) { m_language = language; }
enum Mode { DISABLED = 0, HIDDEN = 1, SHOWING = 2 };
Mode mode() const;
void setMode(unsigned short, ExceptionCode&);
bool showingByDefault() const { return m_showingByDefault; }
void setShowingByDefault(bool showing) { m_showingByDefault = showing; }
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;
virtual void clearClient() { m_client = 0; }
TextTrackClient* client() { return m_client; }
void addCue(PassRefPtr<TextTrackCue>, ExceptionCode&);
void removeCue(TextTrackCue*, ExceptionCode&);
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();
protected:
TextTrack(ScriptExecutionContext*, TextTrackClient*, const String& kind, const String& label, const String& language, TextTrackType);
RefPtr<TextTrackCueList> m_cues;
private:
TextTrackCueList* ensureTextTrackCueList();
HTMLMediaElement* m_mediaElement;
String m_kind;
String m_label;
String m_language;
Mode m_mode;
TextTrackClient* m_client;
TextTrackType m_trackType;
ReadinessState m_readinessState;
bool m_showingByDefault;
int m_trackIndex;
};
}
#endif
#endif