ScrollingTreeFrameScrollingNodeMac.h [plain text]
#pragma once
#if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)
#include "ScrollbarThemeMac.h"
#include "ScrollingStateFrameScrollingNode.h"
#include "ScrollingTreeFrameScrollingNode.h"
#include "ScrollingTreeScrollingNodeDelegateMac.h"
#include <wtf/RetainPtr.h>
OBJC_CLASS CALayer;
namespace WebCore {
class WEBCORE_EXPORT ScrollingTreeFrameScrollingNodeMac : public ScrollingTreeFrameScrollingNode {
public:
static Ref<ScrollingTreeFrameScrollingNode> create(ScrollingTree&, ScrollingNodeType, ScrollingNodeID);
virtual ~ScrollingTreeFrameScrollingNodeMac();
RetainPtr<CALayer> rootContentsLayer() const { return m_rootContentsLayer; }
protected:
ScrollingTreeFrameScrollingNodeMac(ScrollingTree&, ScrollingNodeType, ScrollingNodeID);
void commitStateBeforeChildren(const ScrollingStateNode&) override;
void commitStateAfterChildren(const ScrollingStateNode&) override;
WheelEventHandlingResult handleWheelEvent(const PlatformWheelEvent&, EventTargeting) override;
WEBCORE_EXPORT void repositionRelatedLayers() override;
FloatPoint minimumScrollPosition() const override;
FloatPoint maximumScrollPosition() const override;
void updateMainFramePinAndRubberbandState();
unsigned exposedUnfilledArea() const;
private:
void willBeDestroyed() final;
void willDoProgrammaticScroll(const FloatPoint&) final;
FloatPoint adjustedScrollPosition(const FloatPoint&, ScrollClamping) const final;
void currentScrollPositionChanged(ScrollType, ScrollingLayerPositionAction) final;
void repositionScrollingLayers() final;
ScrollingTreeScrollingNodeDelegateMac m_delegate;
RetainPtr<CALayer> m_rootContentsLayer;
RetainPtr<CALayer> m_counterScrollingLayer;
RetainPtr<CALayer> m_insetClipLayer;
RetainPtr<CALayer> m_contentShadowLayer;
RetainPtr<CALayer> m_headerLayer;
RetainPtr<CALayer> m_footerLayer;
bool m_lastScrollHadUnfilledPixels { false };
bool m_hadFirstUpdate { false };
};
}
#endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)