void AsyncScrollingCoordinator::frameViewRootLayerDidChange(FrameView& frameView)
{
ASSERT(isMainThread());
ASSERT(m_page);
if (!coordinatesScrollingForFrameView(frameView))
return;
// FIXME: In some navigation scenarios, the FrameView has no RenderView or that RenderView has not been composited.
// This needs cleaning up: https://bugs.webkit.org/show_bug.cgi?id=132724
if (!frameView.scrollLayerID())
return;
// If the root layer does not have a ScrollingStateNode, then we should create one.
ensureRootStateNodeForFrameView(frameView);
ASSERT(m_scrollingStateTree->rootStateNode());
ScrollingCoordinator::frameViewRootLayerDidChange(frameView);
ScrollingStateFrameScrollingNode* node = downcast<ScrollingStateFrameScrollingNode>(m_scrollingStateTree->stateNodeForID(frameView.scrollLayerID()));
node->setLayer(scrollLayerForFrameView(frameView));
node->setScrolledContentsLayer(rootContentLayerForFrameView(frameView));
node->setCounterScrollingLayer(counterScrollingLayerForFrameView(frameView));
node->setInsetClipLayer(insetClipLayerForFrameView(frameView));
node->setContentShadowLayer(contentShadowLayerForFrameView(frameView));
node->setHeaderLayer(headerLayerForFrameView(frameView));
node->setFooterLayer(footerLayerForFrameView(frameView));
node->setScrollBehaviorForFixedElements(frameView.scrollBehaviorForFixedElements());
}
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;
}
}
}