void RemoteScrollingCoordinatorProxy::connectStateNodeLayers(ScrollingStateTree& stateTree, const RemoteLayerTreeHost& layerTreeHost, bool& fixedOrStickyLayerChanged)
{
for (auto& currNode : stateTree.nodeMap().values()) {
if (currNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
currNode->setLayer(layerTreeHost.getLayer(currNode->layer()));
switch (currNode->nodeType()) {
case FrameScrollingNode: {
ScrollingStateFrameScrollingNode* scrollingStateNode = toScrollingStateFrameScrollingNode(currNode);
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::ScrolledContentsLayer))
scrollingStateNode->setScrolledContentsLayer(layerTreeHost.getLayer(scrollingStateNode->scrolledContentsLayer()));
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::CounterScrollingLayer))
scrollingStateNode->setCounterScrollingLayer(layerTreeHost.getLayer(scrollingStateNode->counterScrollingLayer()));
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::InsetClipLayer))
scrollingStateNode->setInsetClipLayer(layerTreeHost.getLayer(scrollingStateNode->insetClipLayer()));
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::ContentShadowLayer))
scrollingStateNode->setContentShadowLayer(layerTreeHost.getLayer(scrollingStateNode->contentShadowLayer()));
// FIXME: we should never have header and footer layers coming from the WebProcess.
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::HeaderLayer))
scrollingStateNode->setHeaderLayer(layerTreeHost.getLayer(scrollingStateNode->headerLayer()));
if (scrollingStateNode->hasChangedProperty(ScrollingStateFrameScrollingNode::FooterLayer))
scrollingStateNode->setFooterLayer(layerTreeHost.getLayer(scrollingStateNode->footerLayer()));
break;
}
case OverflowScrollingNode: {
ScrollingStateOverflowScrollingNode* scrollingStateNode = toScrollingStateOverflowScrollingNode(currNode);
if (scrollingStateNode->hasChangedProperty(ScrollingStateOverflowScrollingNode::ScrolledContentsLayer))
scrollingStateNode->setScrolledContentsLayer(layerTreeHost.getLayer(scrollingStateNode->scrolledContentsLayer()));
break;
}
case FixedNode:
if (currNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
fixedOrStickyLayerChanged = true;
break;
case StickyNode:
if (currNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
fixedOrStickyLayerChanged = true;
break;
}
}
}
void AsyncScrollingCoordinator::updateOverflowScrollingNode(ScrollingNodeID nodeID, GraphicsLayer* layer, GraphicsLayer* scrolledContentsLayer, const ScrollingGeometry* scrollingGeometry)
{
ScrollingStateOverflowScrollingNode* node = toScrollingStateOverflowScrollingNode(m_scrollingStateTree->stateNodeForID(nodeID));
ASSERT(node);
if (!node)
return;
node->setLayer(layer);
node->setScrolledContentsLayer(scrolledContentsLayer);
if (scrollingGeometry) {
node->setScrollOrigin(scrollingGeometry->scrollOrigin);
node->setScrollPosition(scrollingGeometry->scrollPosition);
node->setTotalContentsSize(scrollingGeometry->contentSize);
node->setScrollableAreaSize(scrollingGeometry->scrollableAreaSize);
}
}
void AsyncScrollingCoordinator::updateOverflowScrollingNode(ScrollingNodeID nodeID, GraphicsLayer* layer, GraphicsLayer* scrolledContentsLayer, const ScrollingGeometry* scrollingGeometry)
{
ScrollingStateOverflowScrollingNode* node = downcast<ScrollingStateOverflowScrollingNode>(m_scrollingStateTree->stateNodeForID(nodeID));
ASSERT(node);
if (!node)
return;
node->setLayer(layer);
node->setScrolledContentsLayer(scrolledContentsLayer);
if (scrollingGeometry) {
node->setScrollOrigin(scrollingGeometry->scrollOrigin);
node->setScrollPosition(scrollingGeometry->scrollPosition);
node->setTotalContentsSize(scrollingGeometry->contentSize);
node->setReachableContentsSize(scrollingGeometry->reachableContentSize);
node->setScrollableAreaSize(scrollingGeometry->scrollableAreaSize);
#if ENABLE(CSS_SCROLL_SNAP)
setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Horizontal, scrollingGeometry->horizontalSnapOffsets, m_page->deviceScaleFactor());
setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Vertical, scrollingGeometry->verticalSnapOffsets, m_page->deviceScaleFactor());
#endif
}
}