ScrollingStateStickyNode.h [plain text]
#ifndef ScrollingStateStickyNode_h
#define ScrollingStateStickyNode_h
#if ENABLE(ASYNC_SCROLLING) || USE(COORDINATED_GRAPHICS)
#include "ScrollingConstraints.h"
#include "ScrollingStateNode.h"
#include <wtf/Forward.h>
namespace WebCore {
class StickyPositionViewportConstraints;
class ScrollingStateStickyNode final : public ScrollingStateNode {
public:
static PassRefPtr<ScrollingStateStickyNode> create(ScrollingStateTree&, ScrollingNodeID);
virtual PassRefPtr<ScrollingStateNode> clone(ScrollingStateTree&);
virtual ~ScrollingStateStickyNode();
enum {
ViewportConstraints = NumStateNodeBits
};
void updateConstraints(const StickyPositionViewportConstraints&);
const StickyPositionViewportConstraints& viewportConstraints() const { return m_constraints; }
private:
ScrollingStateStickyNode(ScrollingStateTree&, ScrollingNodeID);
ScrollingStateStickyNode(const ScrollingStateStickyNode&, ScrollingStateTree&);
virtual void syncLayerPositionForViewportRect(const LayoutRect& viewportRect) override;
virtual void dumpProperties(TextStream&, int indent) const override;
StickyPositionViewportConstraints m_constraints;
};
SCROLLING_STATE_NODE_TYPE_CASTS(ScrollingStateStickyNode, isStickyNode());
}
#endif // ENABLE(ASYNC_SCROLLING) || USE(COORDINATED_GRAPHICS)
#endif // ScrollingStateStickyNode_h