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 ScrollingTree::removeDestroyedNodes(const ScrollingStateTree& stateTree)
{
for (const auto& removedNodeID : stateTree.removedNodes()) {
m_nodeMap.remove(removedNodeID);
if (removedNodeID == m_latchedNode)
clearLatchedNode();
}
}
// This copy constructor is used for cloning nodes in the tree, and it doesn't make sense
// to clone the relationship pointers, so don't copy that information from the original node.
ScrollingStateNode::ScrollingStateNode(const ScrollingStateNode& stateNode, ScrollingStateTree& adoptiveTree)
: m_nodeType(stateNode.nodeType())
, m_nodeID(stateNode.scrollingNodeID())
, m_changedProperties(stateNode.changedProperties())
, m_scrollingStateTree(adoptiveTree)
, m_parent(nullptr)
{
if (hasChangedProperty(ScrollLayer))
setLayer(stateNode.layer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
scrollingStateTree().addNode(this);
}
ScrollingStateFrameScrollingNode::ScrollingStateFrameScrollingNode(const ScrollingStateFrameScrollingNode& stateNode, ScrollingStateTree& adoptiveTree)
: ScrollingStateScrollingNode(stateNode, adoptiveTree)
#if PLATFORM(MAC)
, m_verticalScrollerImp(stateNode.verticalScrollerImp())
, m_horizontalScrollerImp(stateNode.horizontalScrollerImp())
#endif
, m_eventTrackingRegions(stateNode.eventTrackingRegions())
, m_requestedScrollPosition(stateNode.requestedScrollPosition())
, m_frameScaleFactor(stateNode.frameScaleFactor())
, m_topContentInset(stateNode.topContentInset())
, m_headerHeight(stateNode.headerHeight())
, m_footerHeight(stateNode.footerHeight())
, m_synchronousScrollingReasons(stateNode.synchronousScrollingReasons())
, m_behaviorForFixed(stateNode.scrollBehaviorForFixedElements())
, m_requestedScrollPositionRepresentsProgrammaticScroll(stateNode.requestedScrollPositionRepresentsProgrammaticScroll())
, m_fixedElementsLayoutRelativeToFrame(stateNode.fixedElementsLayoutRelativeToFrame())
{
if (hasChangedProperty(ScrolledContentsLayer))
setScrolledContentsLayer(stateNode.scrolledContentsLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(CounterScrollingLayer))
setCounterScrollingLayer(stateNode.counterScrollingLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(InsetClipLayer))
setInsetClipLayer(stateNode.insetClipLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(ContentShadowLayer))
setContentShadowLayer(stateNode.contentShadowLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(HeaderLayer))
setHeaderLayer(stateNode.headerLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(FooterLayer))
setFooterLayer(stateNode.footerLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
}
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 ScrollingTree::removeDestroyedNodes(const ScrollingStateTree& stateTree)
{
for (const auto& removedNode : stateTree.removedNodes()) {
ScrollingTreeNode* node = m_nodeMap.take(removedNode);
if (!node)
continue;
if (node->scrollingNodeID() == m_latchedNode)
clearLatchedNode();
// Never destroy the root node. There will be a new root node in the state tree, and we will
// associate it with our existing root node in updateTreeFromStateNode().
if (node->parent())
m_rootNode->removeChild(node);
}
}
void RemoteScrollingTreeTextStream::dump(const ScrollingStateTree& stateTree, bool changedPropertiesOnly)
{
RemoteScrollingTreeTextStream& ts = *this;
dumpProperty(ts, "has changed properties", stateTree.hasChangedProperties());
dumpProperty(ts, "has new root node", stateTree.hasNewRootStateNode());
if (stateTree.rootStateNode())
recursiveDumpNodes(*stateTree.rootStateNode(), changedPropertiesOnly);
if (!stateTree.removedNodes().isEmpty())
dumpProperty<Vector<ScrollingNodeID>>(ts, "removed-nodes", stateTree.removedNodes());
}
ScrollingStateScrollingNode::ScrollingStateScrollingNode(const ScrollingStateScrollingNode& stateNode, ScrollingStateTree& adoptiveTree)
: ScrollingStateNode(stateNode, adoptiveTree)
#if PLATFORM(MAC)
, m_verticalScrollbarPainter(stateNode.verticalScrollbarPainter())
, m_horizontalScrollbarPainter(stateNode.horizontalScrollbarPainter())
#endif
, m_viewportSize(stateNode.viewportSize())
, m_totalContentsSize(stateNode.totalContentsSize())
, m_scrollPosition(stateNode.scrollPosition())
, m_scrollOrigin(stateNode.scrollOrigin())
, m_scrollableAreaParameters(stateNode.scrollableAreaParameters())
, m_nonFastScrollableRegion(stateNode.nonFastScrollableRegion())
, m_frameScaleFactor(stateNode.frameScaleFactor())
, m_wheelEventHandlerCount(stateNode.wheelEventHandlerCount())
, m_synchronousScrollingReasons(stateNode.synchronousScrollingReasons())
, m_behaviorForFixed(stateNode.scrollBehaviorForFixedElements())
, m_headerHeight(stateNode.headerHeight())
, m_footerHeight(stateNode.footerHeight())
, m_requestedScrollPosition(stateNode.requestedScrollPosition())
, m_requestedScrollPositionRepresentsProgrammaticScroll(stateNode.requestedScrollPositionRepresentsProgrammaticScroll())
, m_topContentInset(stateNode.topContentInset())
{
if (hasChangedProperty(ScrolledContentsLayer))
setScrolledContentsLayer(stateNode.scrolledContentsLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(CounterScrollingLayer))
setCounterScrollingLayer(stateNode.counterScrollingLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(InsetClipLayer))
setInsetClipLayer(stateNode.insetClipLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(ContentShadowLayer))
setContentShadowLayer(stateNode.contentShadowLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(HeaderLayer))
setHeaderLayer(stateNode.headerLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
if (hasChangedProperty(FooterLayer))
setFooterLayer(stateNode.footerLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
}
ScrollingStateOverflowScrollingNode::ScrollingStateOverflowScrollingNode(const ScrollingStateOverflowScrollingNode& stateNode, ScrollingStateTree& adoptiveTree)
: ScrollingStateScrollingNode(stateNode, adoptiveTree)
{
if (hasChangedProperty(ScrolledContentsLayer))
setScrolledContentsLayer(stateNode.scrolledContentsLayer().toRepresentation(adoptiveTree.preferredLayerRepresentation()));
}
