TEST_F(ScrollingCoordinatorChromiumTest, touchOverflowScrolling)
{
registerMockedHttpURLLoad("touch-overflow-scrolling.html");
navigateTo(m_baseURL + "touch-overflow-scrolling.html");
// Verify the properties of the accelerated scrolling element starting from the RenderObject
// all the way to the WebLayer.
Element* scrollableElement = m_webViewImpl->mainFrameImpl()->frame()->document()->getElementById("scrollable");
ASSERT(scrollableElement);
RenderObject* renderer = scrollableElement->renderer();
ASSERT_TRUE(renderer->isBoxModelObject());
ASSERT_TRUE(renderer->hasLayer());
RenderLayer* layer = toRenderBoxModelObject(renderer)->layer();
ASSERT_TRUE(layer->usesCompositedScrolling());
ASSERT_TRUE(layer->isComposited());
RenderLayerBacking* layerBacking = layer->backing();
ASSERT_TRUE(layerBacking->hasScrollingLayer());
ASSERT(layerBacking->scrollingContentsLayer());
GraphicsLayerChromium* graphicsLayerChromium = static_cast<GraphicsLayerChromium*>(layerBacking->scrollingContentsLayer());
ASSERT_EQ(layer, graphicsLayerChromium->scrollableArea());
WebLayer* webScrollLayer = static_cast<WebLayer*>(layerBacking->scrollingContentsLayer()->platformLayer());
ASSERT_TRUE(webScrollLayer->scrollable());
}
RenderLayer* LinkHighlight::computeEnclosingCompositingLayer()
{
if (!m_node || !m_node->renderer())
return 0;
// Find the nearest enclosing composited layer and attach to it. We may need to cross frame boundaries
// to find a suitable layer.
RenderLayerModelObject* renderer = toRenderLayerModelObject(m_node->renderer());
RenderLayerModelObject* repaintContainer;
do {
repaintContainer = renderer->containerForRepaint();
if (!repaintContainer) {
renderer = renderer->frame()->ownerRenderer();
if (!renderer)
return 0;
}
} while (!repaintContainer);
RenderLayer* renderLayer = repaintContainer->layer();
if (!renderLayer || !renderLayer->isComposited())
return 0;
GraphicsLayer* newGraphicsLayer = renderLayer->backing()->graphicsLayer();
m_clipLayer->setSublayerTransform(SkMatrix44());
if (!newGraphicsLayer->drawsContent()) {
if (renderLayer->usesCompositedScrolling()) {
ASSERT(renderLayer->backing() && renderLayer->backing()->scrollingContentsLayer());
newGraphicsLayer = renderLayer->backing()->scrollingContentsLayer();
} else
ASSERT_NOT_REACHED();
}
if (m_currentGraphicsLayer != newGraphicsLayer) {
if (m_currentGraphicsLayer)
clearGraphicsLayerLinkHighlightPointer();
m_currentGraphicsLayer = newGraphicsLayer;
m_currentGraphicsLayer->setLinkHighlight(this);
}
return renderLayer;
}
