示例#1
0
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;
        }
    }
}