#ifndef VTTRegion_h
#define VTTRegion_h
#if ENABLE(VIDEO_TRACK) && ENABLE(WEBVTT_REGIONS)
#include "ContextDestructionObserver.h"
#include "Document.h"
#include "FloatPoint.h"
#include "TextTrack.h"
#include <wtf/RefCounted.h>
namespace WebCore {
class HTMLDivElement;
class VTTCueBox;
class VTTScanner;
class VTTRegion final : public RefCounted<VTTRegion>, public ContextDestructionObserver {
public:
static Ref<VTTRegion> create(ScriptExecutionContext& context)
{
return adoptRef(*new VTTRegion(context));
}
virtual ~VTTRegion();
TextTrack* track() const { return m_track; }
void setTrack(TextTrack*);
const String& id() const { return m_id; }
void setId(const String&);
double width() const { return m_width; }
void setWidth(double, ExceptionCode&);
long height() const { return m_heightInLines; }
void setHeight(long, ExceptionCode&);
double regionAnchorX() const { return m_regionAnchor.x(); }
void setRegionAnchorX(double, ExceptionCode&);
double regionAnchorY() const { return m_regionAnchor.y(); }
void setRegionAnchorY(double, ExceptionCode&);
double viewportAnchorX() const { return m_viewportAnchor.x(); }
void setViewportAnchorX(double, ExceptionCode&);
double viewportAnchorY() const { return m_viewportAnchor.y(); }
void setViewportAnchorY(double, ExceptionCode&);
const AtomicString scroll() const;
void setScroll(const AtomicString&, ExceptionCode&);
void updateParametersFromRegion(VTTRegion*);
const String& regionSettings() const { return m_settings; }
void setRegionSettings(const String&);
bool isScrollingRegion() { return m_scroll; }
PassRefPtr<HTMLDivElement> getDisplayTree();
void appendTextTrackCueBox(PassRefPtr<VTTCueBox>);
void displayLastTextTrackCueBox();
void willRemoveTextTrackCueBox(VTTCueBox*);
private:
VTTRegion(ScriptExecutionContext&);
Document* ownerDocument() { return downcast<Document>(m_scriptExecutionContext); }
void prepareRegionDisplayTree();
void startTimer();
void stopTimer();
void scrollTimerFired();
enum RegionSetting {
None,
Id,
Width,
Height,
RegionAnchor,
ViewportAnchor,
Scroll
};
RegionSetting scanSettingName(VTTScanner&);
void parseSettingValue(RegionSetting, VTTScanner&);
static const AtomicString& textTrackCueContainerShadowPseudoId();
static const AtomicString& textTrackCueContainerScrollingClass();
static const AtomicString& textTrackRegionShadowPseudoId();
String m_id;
String m_settings;
double m_width;
unsigned m_heightInLines;
FloatPoint m_regionAnchor;
FloatPoint m_viewportAnchor;
bool m_scroll;
RefPtr<HTMLDivElement> m_cueContainer;
RefPtr<HTMLDivElement> m_regionDisplayTree;
TextTrack* m_track;
double m_currentTop;
Timer m_scrollTimer;
};
}
#endif
#endif