#pragma once
#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 Ref<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();
float opacity();
bool isHiddenByStyle() const final;
std::unique_ptr<RenderStyle> getScrollbarPseudoStyle(ScrollbarPart, PseudoId) const;
private:
RenderScrollbar(ScrollableArea&, ScrollbarOrientation, Element*, Frame*);
bool isOverlayScrollbar() const override { return false; }
void setParent(ScrollView*) override;
void setEnabled(bool) override;
void paint(GraphicsContext&, const IntRect& damageRect, Widget::SecurityOriginPaintPolicy) override;
void setHoveredPart(ScrollbarPart) override;
void setPressedPart(ScrollbarPart) override;
void styleChanged() override;
void updateScrollbarParts();
void updateScrollbarPart(ScrollbarPart);
RefPtr<Element> m_ownerElement;
Frame* m_owningFrame;
HashMap<unsigned, RenderPtr<RenderScrollbarPart>> m_parts;
};
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::RenderScrollbar)
static bool isType(const WebCore::Scrollbar& scrollbar) { return scrollbar.isCustomScrollbar(); }
SPECIALIZE_TYPE_TRAITS_END()