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/*
* Copyright (C) 2019 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 "ScrollingStatePositionedNode.h"
#include "GraphicsLayer.h"
#include "Logging.h"
#include "ScrollingStateTree.h"
#include <wtf/text/TextStream.h>
#if ENABLE(ASYNC_SCROLLING)
namespace WebCore {
Ref<ScrollingStatePositionedNode> ScrollingStatePositionedNode::create(ScrollingStateTree& stateTree, ScrollingNodeID nodeID)
{
return adoptRef(*new ScrollingStatePositionedNode(stateTree, nodeID));
}
ScrollingStatePositionedNode::ScrollingStatePositionedNode(ScrollingStateTree& tree, ScrollingNodeID nodeID)
: ScrollingStateNode(ScrollingNodeType::Positioned, tree, nodeID)
{
}
ScrollingStatePositionedNode::ScrollingStatePositionedNode(const ScrollingStatePositionedNode& node, ScrollingStateTree& adoptiveTree)
: ScrollingStateNode(node, adoptiveTree)
, m_relatedOverflowScrollingNodes(node.relatedOverflowScrollingNodes())
, m_constraints(node.layoutConstraints())
{
}
ScrollingStatePositionedNode::~ScrollingStatePositionedNode() = default;
Ref<ScrollingStateNode> ScrollingStatePositionedNode::clone(ScrollingStateTree& adoptiveTree)
{
return adoptRef(*new ScrollingStatePositionedNode(*this, adoptiveTree));
}
OptionSet<ScrollingStateNode::Property> ScrollingStatePositionedNode::applicableProperties() const
{
constexpr OptionSet<Property> nodeProperties = { Property::RelatedOverflowScrollingNodes, Property::LayoutConstraintData };
auto properties = ScrollingStateNode::applicableProperties();
properties.add(nodeProperties);
return properties;
}
void ScrollingStatePositionedNode::setRelatedOverflowScrollingNodes(Vector<ScrollingNodeID>&& nodes)
{
if (nodes == m_relatedOverflowScrollingNodes)
return;
m_relatedOverflowScrollingNodes = WTFMove(nodes);
setPropertyChanged(Property::RelatedOverflowScrollingNodes);
}
void ScrollingStatePositionedNode::updateConstraints(const AbsolutePositionConstraints& constraints)
{
if (m_constraints == constraints)
return;
LOG_WITH_STREAM(Scrolling, stream << "ScrollingStatePositionedNode " << scrollingNodeID() << " updateConstraints " << constraints);
m_constraints = constraints;
setPropertyChanged(Property::LayoutConstraintData);
}
void ScrollingStatePositionedNode::dumpProperties(TextStream& ts, OptionSet<ScrollingStateTreeAsTextBehavior> behavior) const
{
ts << "Positioned node";
ScrollingStateNode::dumpProperties(ts, behavior);
ts.dumpProperty("layout constraints", m_constraints);
ts.dumpProperty("related overflow nodes", m_relatedOverflowScrollingNodes.size());
if (behavior & ScrollingStateTreeAsTextBehavior::IncludeNodeIDs) {
if (!m_relatedOverflowScrollingNodes.isEmpty()) {
TextStream::GroupScope scope(ts);
ts << "overflow nodes";
for (auto nodeID : m_relatedOverflowScrollingNodes)
ts << "\n" << indent << "nodeID " << nodeID;
}
}
}
} // namespace WebCore
#endif // ENABLE(ASYNC_SCROLLING)
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