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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 "ScrollingStateOverflowScrollProxyNode.h"
#if ENABLE(ASYNC_SCROLLING)
#include "ScrollingStateOverflowScrollingNode.h"
#include "ScrollingStateTree.h"
#include <wtf/text/TextStream.h>
namespace WebCore {
Ref<ScrollingStateOverflowScrollProxyNode> ScrollingStateOverflowScrollProxyNode::create(ScrollingStateTree& stateTree, ScrollingNodeID nodeID)
{
return adoptRef(*new ScrollingStateOverflowScrollProxyNode(stateTree, nodeID));
}
ScrollingStateOverflowScrollProxyNode::ScrollingStateOverflowScrollProxyNode(ScrollingStateTree& stateTree, ScrollingNodeID nodeID)
: ScrollingStateNode(ScrollingNodeType::OverflowProxy, stateTree, nodeID)
{
}
ScrollingStateOverflowScrollProxyNode::ScrollingStateOverflowScrollProxyNode(const ScrollingStateOverflowScrollProxyNode& stateNode, ScrollingStateTree& adoptiveTree)
: ScrollingStateNode(stateNode, adoptiveTree)
, m_overflowScrollingNodeID(stateNode.overflowScrollingNode())
{
}
ScrollingStateOverflowScrollProxyNode::~ScrollingStateOverflowScrollProxyNode() = default;
Ref<ScrollingStateNode> ScrollingStateOverflowScrollProxyNode::clone(ScrollingStateTree& adoptiveTree)
{
return adoptRef(*new ScrollingStateOverflowScrollProxyNode(*this, adoptiveTree));
}
OptionSet<ScrollingStateNode::Property> ScrollingStateOverflowScrollProxyNode::applicableProperties() const
{
constexpr OptionSet<Property> nodeProperties = { Property::OverflowScrollingNode };
auto properties = ScrollingStateNode::applicableProperties();
properties.add(nodeProperties);
return properties;
}
void ScrollingStateOverflowScrollProxyNode::setOverflowScrollingNode(ScrollingNodeID nodeID)
{
if (nodeID == m_overflowScrollingNodeID)
return;
m_overflowScrollingNodeID = nodeID;
setPropertyChanged(Property::OverflowScrollingNode);
}
void ScrollingStateOverflowScrollProxyNode::dumpProperties(TextStream& ts, OptionSet<ScrollingStateTreeAsTextBehavior> behavior) const
{
ts << "Overflow scroll proxy node";
ScrollingStateNode::dumpProperties(ts, behavior);
if (auto* relatedOverflowNode = scrollingStateTree().stateNodeForID(m_overflowScrollingNodeID)) {
auto scrollPosition = downcast<ScrollingStateOverflowScrollingNode>(*relatedOverflowNode).scrollPosition();
ts.dumpProperty("related overflow scrolling node scroll position", scrollPosition);
}
if (behavior & ScrollingStateTreeAsTextBehavior::IncludeNodeIDs)
ts.dumpProperty("overflow scrolling node", overflowScrollingNode());
}
} // namespace WebCore
#endif // ENABLE(ASYNC_SCROLLING)