ScrollingStateStickyNode.h [plain text]
#pragma once
#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 Ref<ScrollingStateStickyNode> create(ScrollingStateTree&, ScrollingNodeID);
Ref<ScrollingStateNode> clone(ScrollingStateTree&) override;
virtual ~ScrollingStateStickyNode();
enum {
ViewportConstraints = NumStateNodeBits
};
WEBCORE_EXPORT void updateConstraints(const StickyPositionViewportConstraints&);
const StickyPositionViewportConstraints& viewportConstraints() const { return m_constraints; }
private:
ScrollingStateStickyNode(ScrollingStateTree&, ScrollingNodeID);
ScrollingStateStickyNode(const ScrollingStateStickyNode&, ScrollingStateTree&);
void reconcileLayerPositionForViewportRect(const LayoutRect& viewportRect, ScrollingLayerPositionAction) override;
void dumpProperties(TextStream&, int indent, ScrollingStateTreeAsTextBehavior) const override;
StickyPositionViewportConstraints m_constraints;
};
}
SPECIALIZE_TYPE_TRAITS_SCROLLING_STATE_NODE(ScrollingStateStickyNode, isStickyNode())
#endif // ENABLE(ASYNC_SCROLLING) || USE(COORDINATED_GRAPHICS)