blob: 4831e51b25a89b74c5cabad55707a69cc323118c [file] [log] [blame]
/*
* 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.
*/
#include "config.h"
#include "ScrollingStateStickyNode.h"
#if ENABLE(THREADED_SCROLLING) || USE(COORDINATED_GRAPHICS)
#include "GraphicsLayer.h"
#include "ScrollingStateTree.h"
#include "TextStream.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
PassOwnPtr<ScrollingStateStickyNode> ScrollingStateStickyNode::create(ScrollingStateTree* stateTree, ScrollingNodeID nodeID)
{
return adoptPtr(new ScrollingStateStickyNode(stateTree, nodeID));
}
ScrollingStateStickyNode::ScrollingStateStickyNode(ScrollingStateTree* tree, ScrollingNodeID nodeID)
: ScrollingStateNode(tree, nodeID)
{
}
ScrollingStateStickyNode::ScrollingStateStickyNode(const ScrollingStateStickyNode& node)
: ScrollingStateNode(node)
, m_constraints(StickyPositionViewportConstraints(node.viewportConstraints()))
{
}
ScrollingStateStickyNode::~ScrollingStateStickyNode()
{
}
PassOwnPtr<ScrollingStateNode> ScrollingStateStickyNode::clone()
{
return adoptPtr(new ScrollingStateStickyNode(*this));
}
void ScrollingStateStickyNode::updateConstraints(const StickyPositionViewportConstraints& constraints)
{
if (m_constraints == constraints)
return;
m_constraints = constraints;
setPropertyChanged(ViewportConstraints);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateStickyNode::syncLayerPositionForViewportRect(const LayoutRect& viewportRect)
{
FloatPoint position = m_constraints.layerPositionForViewportRect(viewportRect);
graphicsLayer()->syncPosition(position);
}
void ScrollingStateStickyNode::dumpProperties(TextStream& ts, int indent) const
{
ts << "(" << "Sticky node" << "\n";
if (m_constraints.anchorEdges()) {
writeIndent(ts, indent + 1);
ts << "(anchor edges: ";
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeLeft))
ts << "AnchorEdgeLeft ";
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeRight))
ts << "AnchorEdgeRight ";
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeTop))
ts << "AnchorEdgeTop ";
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeBottom))
ts << "AnchorEdgeBottom";
ts << ")\n";
}
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeLeft)) {
writeIndent(ts, indent + 1);
ts << "(left offset " << m_constraints.leftOffset() << ")\n";
}
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeRight)) {
writeIndent(ts, indent + 1);
ts << "(right offset " << m_constraints.rightOffset() << ")\n";
}
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeTop)) {
writeIndent(ts, indent + 1);
ts << "(top offset " << m_constraints.topOffset() << ")\n";
}
if (m_constraints.hasAnchorEdge(ViewportConstraints::AnchorEdgeBottom)) {
writeIndent(ts, indent + 1);
ts << "(bottom offset " << m_constraints.bottomOffset() << ")\n";
}
writeIndent(ts, indent + 1);
FloatRect r = m_constraints.absoluteContainingBlockRect();
ts << "(containing block rect " << r.x() << ", " << r.y() << " " << r.width() << " x " << r.height() << ")\n";
writeIndent(ts, indent + 1);
r = m_constraints.absoluteStickyBoxRect();
ts << "(sticky box rect " << r.x() << " " << r.y() << " " << r.width() << " " << r.height() << ")\n";
writeIndent(ts, indent + 1);
r = m_constraints.absoluteStickyBoxRect();
ts << "(sticky box rect " << r.x() << " " << r.y() << " " << r.width() << " " << r.height() << ")\n";
writeIndent(ts, indent + 1);
ts << "(sticky offset at last layout " << m_constraints.stickyOffsetAtLastLayout().width() << " " << m_constraints.stickyOffsetAtLastLayout().height() << ")\n";
writeIndent(ts, indent + 1);
ts << "(layer position at last layout " << m_constraints.layerPositionAtLastLayout().x() << " " << m_constraints.layerPositionAtLastLayout().y() << ")\n";
}
} // namespace WebCore
#endif // ENABLE(THREADED_SCROLLING) || USE(COORDINATED_GRAPHICS)