RemoteScrollingCoordinatorProxyIOS.mm [plain text]
/*
* Copyright (C) 2014 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 "RemoteScrollingCoordinatorProxy.h"
#if PLATFORM(IOS)
#if ENABLE(ASYNC_SCROLLING)
#include "LayerRepresentation.h"
#include "RemoteLayerTreeHost.h"
#include "WebPageProxy.h"
#include <WebCore/ScrollingStateFrameScrollingNode.h>
#include <WebCore/ScrollingStateOverflowScrollingNode.h>
#include <WebCore/ScrollingStateTree.h>
#include <UIKit/UIView.h>
using namespace WebCore;
namespace WebKit {
static LayerRepresentation layerRepresentationFromLayerOrView(LayerOrView *layerOrView)
{
return LayerRepresentation(layerOrView.layer);
}
void RemoteScrollingCoordinatorProxy::connectStateNodeLayers(ScrollingStateTree& stateTree, const RemoteLayerTreeHost& layerTreeHost)
{
for (auto& currNode : stateTree.nodeMap().values()) {
switch (currNode->nodeType()) {
case OverflowScrollingNode: {
ScrollingStateOverflowScrollingNode* scrollingStateNode = toScrollingStateOverflowScrollingNode(currNode);
if (scrollingStateNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
scrollingStateNode->setLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(scrollingStateNode->layer())));
if (scrollingStateNode->hasChangedProperty(ScrollingStateOverflowScrollingNode::ScrolledContentsLayer))
scrollingStateNode->setScrolledContentsLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(scrollingStateNode->scrolledContentsLayer())));
break;
};
case FrameScrollingNode: {
ScrollingStateFrameScrollingNode* scrollingStateNode = toScrollingStateFrameScrollingNode(currNode);
if (scrollingStateNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
scrollingStateNode->setLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(scrollingStateNode->layer())));
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::CounterScrollingLayer))
scrollingStateNode->setCounterScrollingLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(scrollingStateNode->counterScrollingLayer())));
// FIXME: we should never have header and footer layers coming from the WebProcess.
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::HeaderLayer))
scrollingStateNode->setHeaderLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(scrollingStateNode->headerLayer())));
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::FooterLayer))
scrollingStateNode->setFooterLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(scrollingStateNode->footerLayer())));
break;
}
case FixedNode:
case StickyNode:
if (currNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
currNode->setLayer(layerRepresentationFromLayerOrView(layerTreeHost.getLayer(currNode->layer())));
break;
}
}
}
FloatRect RemoteScrollingCoordinatorProxy::customFixedPositionRect() const
{
return m_webPageProxy.computeCustomFixedPositionRect(m_webPageProxy.unobscuredContentRect(), m_webPageProxy.displayedContentScale());
}
void RemoteScrollingCoordinatorProxy::scrollingTreeNodeWillStartPanGesture()
{
m_webPageProxy.overflowScrollViewWillStartPanGesture();
}
void RemoteScrollingCoordinatorProxy::scrollingTreeNodeWillStartScroll()
{
m_webPageProxy.overflowScrollWillStartScroll();
}
void RemoteScrollingCoordinatorProxy::scrollingTreeNodeDidEndScroll()
{
m_webPageProxy.overflowScrollDidEndScroll();
}
} // namespace WebKit
#endif // ENABLE(ASYNC_SCROLLING)
#endif // PLATFORM(IOS)