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/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ScrollingStateScrollingNode_h
#define ScrollingStateScrollingNode_h
#if ENABLE(ASYNC_SCROLLING) || USE(COORDINATED_GRAPHICS)
#include "ScrollTypes.h"
#include "ScrollingCoordinator.h"
#include "ScrollingStateNode.h"
#include <wtf/PassOwnPtr.h>
namespace WebCore {
class ScrollingStateScrollingNode : public ScrollingStateNode {
public:
virtual ~ScrollingStateScrollingNode();
enum ChangedProperty {
ScrollableAreaSize = NumStateNodeBits,
TotalContentsSize,
ReachableContentsSize,
ScrollPosition,
ScrollOrigin,
ScrollableAreaParams,
RequestedScrollPosition,
NumScrollingStateNodeBits,
#if ENABLE(CSS_SCROLL_SNAP)
HorizontalSnapOffsets,
VerticalSnapOffsets,
#endif
};
const FloatSize& scrollableAreaSize() const { return m_scrollableAreaSize; }
WEBCORE_EXPORT void setScrollableAreaSize(const FloatSize&);
const FloatSize& totalContentsSize() const { return m_totalContentsSize; }
WEBCORE_EXPORT void setTotalContentsSize(const FloatSize&);
const FloatSize& reachableContentsSize() const { return m_reachableContentsSize; }
WEBCORE_EXPORT void setReachableContentsSize(const FloatSize&);
const FloatPoint& scrollPosition() const { return m_scrollPosition; }
WEBCORE_EXPORT void setScrollPosition(const FloatPoint&);
const IntPoint& scrollOrigin() const { return m_scrollOrigin; }
WEBCORE_EXPORT void setScrollOrigin(const IntPoint&);
#if ENABLE(CSS_SCROLL_SNAP)
const Vector<float>& horizontalSnapOffsets() const { return m_horizontalSnapOffsets; }
WEBCORE_EXPORT void setHorizontalSnapOffsets(const Vector<float>&);
const Vector<float>& verticalSnapOffsets() const { return m_verticalSnapOffsets; }
WEBCORE_EXPORT void setVerticalSnapOffsets(const Vector<float>&);
#endif
const ScrollableAreaParameters& scrollableAreaParameters() const { return m_scrollableAreaParameters; }
WEBCORE_EXPORT void setScrollableAreaParameters(const ScrollableAreaParameters& params);
const FloatPoint& requestedScrollPosition() const { return m_requestedScrollPosition; }
bool requestedScrollPositionRepresentsProgrammaticScroll() const { return m_requestedScrollPositionRepresentsProgrammaticScroll; }
WEBCORE_EXPORT void setRequestedScrollPosition(const FloatPoint&, bool representsProgrammaticScroll);
virtual void dumpProperties(TextStream&, int indent) const override;
protected:
ScrollingStateScrollingNode(ScrollingStateTree&, ScrollingNodeType, ScrollingNodeID);
ScrollingStateScrollingNode(const ScrollingStateScrollingNode&, ScrollingStateTree&);
private:
FloatSize m_scrollableAreaSize;
FloatSize m_totalContentsSize;
FloatSize m_reachableContentsSize;
FloatPoint m_scrollPosition;
FloatPoint m_requestedScrollPosition;
IntPoint m_scrollOrigin;
#if ENABLE(CSS_SCROLL_SNAP)
Vector<float> m_horizontalSnapOffsets;
Vector<float> m_verticalSnapOffsets;
#endif
ScrollableAreaParameters m_scrollableAreaParameters;
bool m_requestedScrollPositionRepresentsProgrammaticScroll;
};
SCROLLING_STATE_NODE_TYPE_CASTS(ScrollingStateScrollingNode, isScrollingNode());
} // namespace WebCore
#endif // ENABLE(ASYNC_SCROLLING) || USE(COORDINATED_GRAPHICS)
#endif // ScrollingStateScrollingNode_h
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