#ifndef RenderScrollbar_h
#define RenderScrollbar_h
#include "RenderPtr.h"
#include "RenderStyleConstants.h"
#include "Scrollbar.h"
#include <wtf/HashMap.h>
namespace WebCore {
class Frame;
class Element;
class RenderBox;
class RenderScrollbarPart;
class RenderStyle;
class RenderScrollbar final : public Scrollbar {
public:
friend class Scrollbar;
static RefPtr<Scrollbar> createCustomScrollbar(ScrollableArea*, ScrollbarOrientation, Element*, Frame* owningFrame = nullptr);
virtual ~RenderScrollbar();
RenderBox* owningRenderer() const;
void paintPart(GraphicsContext*, ScrollbarPart, const IntRect&);
IntRect buttonRect(ScrollbarPart);
IntRect trackRect(int startLength, int endLength);
IntRect trackPieceRectWithMargins(ScrollbarPart, const IntRect&);
int minimumThumbLength();
virtual bool isOverlayScrollbar() const { return false; }
float opacity();
PassRefPtr<RenderStyle> getScrollbarPseudoStyle(ScrollbarPart, PseudoId);
private:
RenderScrollbar(ScrollableArea*, ScrollbarOrientation, Element*, Frame*);
virtual void setParent(ScrollView*) override;
virtual void setEnabled(bool) override;
virtual void paint(GraphicsContext*, const IntRect& damageRect) override;
virtual void setHoveredPart(ScrollbarPart) override;
virtual void setPressedPart(ScrollbarPart) override;
virtual void styleChanged() override;
void updateScrollbarParts();
void updateScrollbarPart(ScrollbarPart);
RefPtr<Element> m_ownerElement;
Frame* m_owningFrame;
HashMap<unsigned, RenderPtr<RenderScrollbarPart>> m_parts;
};
inline RenderScrollbar* toRenderScrollbar(ScrollbarThemeClient* scrollbar)
{
ASSERT_WITH_SECURITY_IMPLICATION(!scrollbar || scrollbar->isCustomScrollbar());
return static_cast<RenderScrollbar*>(scrollbar);
}
void toRenderScrollbar(const RenderScrollbar*);
}
#endif // RenderScrollbar_h