void RemoteScrollingCoordinatorProxy::connectStateNodeLayers(ScrollingStateTree& stateTree, const RemoteLayerTreeHost& layerTreeHost)
{
for (auto it : stateTree.nodeMap()) {
ScrollingStateNode* currNode = it.value;
switch (currNode->nodeType()) {
case ScrollingNode: {
ScrollingStateScrollingNode* scrollingStateNode = toScrollingStateScrollingNode(currNode);
if (scrollingStateNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
scrollingStateNode->setLayer(layerTreeHost.getLayer(scrollingStateNode->layer()));
if (scrollingStateNode->hasChangedProperty(ScrollingStateScrollingNode::CounterScrollingLayer))
scrollingStateNode->setCounterScrollingLayer(layerTreeHost.getLayer(scrollingStateNode->counterScrollingLayer()));
// FIXME: we should never have header and footer layers coming from the WebProcess.
if (scrollingStateNode->hasChangedProperty(ScrollingStateScrollingNode::HeaderLayer))
scrollingStateNode->setHeaderLayer(layerTreeHost.getLayer(scrollingStateNode->headerLayer()));
if (scrollingStateNode->hasChangedProperty(ScrollingStateScrollingNode::FooterLayer))
scrollingStateNode->setFooterLayer(layerTreeHost.getLayer(scrollingStateNode->footerLayer()));
break;
}
case FixedNode:
if (currNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
currNode->setLayer(layerTreeHost.getLayer(currNode->layer()));
break;
case StickyNode:
if (currNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
currNode->setLayer(layerTreeHost.getLayer(currNode->layer()));
break;
}
}
}
void AsyncScrollingCoordinator::updateScrollingNode(ScrollingNodeID nodeID, GraphicsLayer* scrollLayer, GraphicsLayer* counterScrollingLayer)
{
ScrollingStateScrollingNode* node = toScrollingStateScrollingNode(m_scrollingStateTree->stateNodeForID(nodeID));
ASSERT(node);
if (!node)
return;
node->setLayer(scrollLayer);
node->setCounterScrollingLayer(counterScrollingLayer);
}
bool ArgumentCoder<ScrollingStateScrollingNode>::decode(ArgumentDecoder& decoder, ScrollingStateScrollingNode& node)
{
if (!decoder.decode(static_cast<ScrollingStateNode&>(node)))
return false;
SCROLLING_NODE_DECODE(ViewportSize, FloatSize, setViewportSize);
SCROLLING_NODE_DECODE(TotalContentsSize, IntSize, setTotalContentsSize);
SCROLLING_NODE_DECODE(ScrollPosition, FloatPoint, setScrollPosition);
SCROLLING_NODE_DECODE(ScrollOrigin, IntPoint, setScrollOrigin);
SCROLLING_NODE_DECODE(FrameScaleFactor, float, setFrameScaleFactor);
SCROLLING_NODE_DECODE(NonFastScrollableRegion, Region, setNonFastScrollableRegion);
SCROLLING_NODE_DECODE(WheelEventHandlerCount, int, setWheelEventHandlerCount);
SCROLLING_NODE_DECODE(ReasonsForSynchronousScrolling, SynchronousScrollingReasons, setSynchronousScrollingReasons);
SCROLLING_NODE_DECODE(ScrollableAreaParams, ScrollableAreaParameters, setScrollableAreaParameters);
SCROLLING_NODE_DECODE_ENUM(BehaviorForFixedElements, ScrollBehaviorForFixedElements, setScrollBehaviorForFixedElements);
if (node.hasChangedProperty(ScrollingStateScrollingNode::RequestedScrollPosition)) {
FloatPoint scrollPosition;
if (!decoder.decode(scrollPosition))
return false;
bool representsProgrammaticScroll;
if (!decoder.decode(representsProgrammaticScroll))
return false;
node.setRequestedScrollPosition(scrollPosition, representsProgrammaticScroll);
}
SCROLLING_NODE_DECODE(HeaderHeight, int, setHeaderHeight);
SCROLLING_NODE_DECODE(FooterHeight, int, setFooterHeight);
SCROLLING_NODE_DECODE(TopContentInset, float, setTopContentInset);
if (node.hasChangedProperty(ScrollingStateScrollingNode::ScrolledContentsLayer)) {
GraphicsLayer::PlatformLayerID layerID;
if (!decoder.decode(layerID))
return false;
node.setScrolledContentsLayer(layerID);
}
if (node.hasChangedProperty(ScrollingStateScrollingNode::CounterScrollingLayer)) {
GraphicsLayer::PlatformLayerID layerID;
if (!decoder.decode(layerID))
return false;
node.setCounterScrollingLayer(layerID);
}
return true;
}
