ScrollingTreeFrameScrollingNodeMac.h [plain text]
#ifndef ScrollingTreeFrameScrollingNodeMac_h
#define ScrollingTreeFrameScrollingNodeMac_h
#if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)
#include "ScrollElasticityController.h"
#include "ScrollbarThemeMac.h"
#include "ScrollingTreeFrameScrollingNode.h"
#include <wtf/RetainPtr.h>
OBJC_CLASS CALayer;
namespace WebCore {
class ScrollingTreeFrameScrollingNodeMac : public ScrollingTreeFrameScrollingNode, private ScrollElasticityControllerClient {
public:
static PassRefPtr<ScrollingTreeFrameScrollingNode> create(ScrollingTree&, ScrollingNodeID);
virtual ~ScrollingTreeFrameScrollingNodeMac();
private:
ScrollingTreeFrameScrollingNodeMac(ScrollingTree&, ScrollingNodeID);
virtual void updateBeforeChildren(const ScrollingStateNode&) override;
virtual void updateAfterChildren(const ScrollingStateNode&) override;
virtual void handleWheelEvent(const PlatformWheelEvent&) override;
virtual bool allowsHorizontalStretching() override;
virtual bool allowsVerticalStretching() override;
virtual IntSize stretchAmount() override;
virtual bool pinnedInDirection(const FloatSize&) override;
virtual bool canScrollHorizontally() override;
virtual bool canScrollVertically() override;
virtual bool shouldRubberBandInDirection(ScrollDirection) override;
virtual IntPoint absoluteScrollPosition() override;
virtual void immediateScrollBy(const FloatSize&) override;
virtual void immediateScrollByWithoutContentEdgeConstraints(const FloatSize&) override;
virtual void startSnapRubberbandTimer() override;
virtual void stopSnapRubberbandTimer() override;
virtual void adjustScrollPositionToBoundsIfNecessary() override;
virtual FloatPoint scrollPosition() const override;
virtual void setScrollPosition(const FloatPoint&) override;
virtual void setScrollPositionWithoutContentEdgeConstraints(const FloatPoint&) override;
virtual void updateLayersAfterViewportChange(const FloatRect& fixedPositionRect, double scale) override;
virtual void setScrollLayerPosition(const FloatPoint&) override;
virtual FloatPoint minimumScrollPosition() const override;
virtual FloatPoint maximumScrollPosition() const override;
void updateMainFramePinState(const FloatPoint& scrollPosition);
void logExposedUnfilledArea();
ScrollElasticityController m_scrollElasticityController;
RetainPtr<CFRunLoopTimerRef> m_snapRubberbandTimer;
RetainPtr<CALayer> m_scrollLayer;
RetainPtr<CALayer> m_scrolledContentsLayer;
RetainPtr<CALayer> m_counterScrollingLayer;
RetainPtr<CALayer> m_insetClipLayer;
RetainPtr<CALayer> m_contentShadowLayer;
RetainPtr<CALayer> m_headerLayer;
RetainPtr<CALayer> m_footerLayer;
RetainPtr<ScrollbarPainter> m_verticalScrollbarPainter;
RetainPtr<ScrollbarPainter> m_horizontalScrollbarPainter;
FloatPoint m_probableMainThreadScrollPosition;
bool m_lastScrollHadUnfilledPixels;
};
}
#endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)
#endif // ScrollingTreeFrameScrollingNodeMac_h