#pragma once
#if ENABLE(VIDEO)
#include "ContextDestructionObserver.h"
#include "FloatPoint.h"
#include "TextTrack.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; }
ExceptionOr<void> setWidth(double);
int lines() const { return m_lines; }
ExceptionOr<void> setLines(int);
double regionAnchorX() const { return m_regionAnchor.x(); }
ExceptionOr<void> setRegionAnchorX(double);
double regionAnchorY() const { return m_regionAnchor.y(); }
ExceptionOr<void> setRegionAnchorY(double);
double viewportAnchorX() const { return m_viewportAnchor.x(); }
ExceptionOr<void> setViewportAnchorX(double);
double viewportAnchorY() const { return m_viewportAnchor.y(); }
ExceptionOr<void> setViewportAnchorY(double);
const AtomString& scroll() const;
ExceptionOr<void> setScroll(const AtomString&);
void updateParametersFromRegion(const VTTRegion&);
const String& regionSettings() const { return m_settings; }
void setRegionSettings(const String&);
bool isScrollingRegion() { return m_scroll; }
HTMLDivElement& getDisplayTree();
void appendTextTrackCueBox(Ref<TextTrackCueBox>&&);
void displayLastTextTrackCueBox();
void willRemoveTextTrackCueBox(VTTCueBox*);
void cueStyleChanged() { m_recalculateStyles = true; }
private:
VTTRegion(ScriptExecutionContext&);
void prepareRegionDisplayTree();
void startTimer();
void stopTimer();
void scrollTimerFired();
enum RegionSetting {
None,
Id,
Width,
Lines,
RegionAnchor,
ViewportAnchor,
Scroll
};
RegionSetting scanSettingName(VTTScanner&);
void parseSettingValue(RegionSetting, VTTScanner&);
static const AtomString& textTrackCueContainerShadowPseudoId();
static const AtomString& textTrackCueContainerScrollingClass();
static const AtomString& textTrackRegionShadowPseudoId();
String m_id;
String m_settings;
double m_width { 100 };
unsigned m_lines { 3 };
FloatPoint m_regionAnchor { 0, 100 };
FloatPoint m_viewportAnchor { 0, 100 };
bool m_scroll { false };
RefPtr<HTMLDivElement> m_cueContainer;
RefPtr<HTMLDivElement> m_regionDisplayTree;
TextTrack* m_track { nullptr };
double m_currentTop { 0 };
Timer m_scrollTimer;
bool m_recalculateStyles { true };
};
}
#endif