コード例 #1
0
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());
}
コード例 #2
0
void AsyncScrollingCoordinator::frameViewRootLayerDidChange(FrameView* frameView)
{
    ASSERT(isMainThread());
    ASSERT(m_page);

    if (!coordinatesScrollingForFrameView(frameView))
        return;

    // If the root layer does not have a ScrollingStateNode, then we should create one.
    ensureRootStateNodeForFrameView(frameView);
    ASSERT(m_scrollingStateTree->rootStateNode());

    ScrollingCoordinator::frameViewRootLayerDidChange(frameView);

    ScrollingStateScrollingNode* node = toScrollingStateScrollingNode(m_scrollingStateTree->stateNodeForID(frameView->scrollLayerID()));
    setScrollLayerForNode(scrollLayerForFrameView(frameView), node);
    setCounterScrollingLayerForNode(counterScrollingLayerForFrameView(frameView), node);
    setHeaderLayerForNode(headerLayerForFrameView(frameView), node);
    setFooterLayerForNode(footerLayerForFrameView(frameView), node);
    setScrollBehaviorForFixedElementsForNode(frameView->scrollBehaviorForFixedElements(), node);
}