void ScrollingCoordinatorChromium::scrollableAreaScrollLayerDidChange(ScrollableArea* scrollableArea, GraphicsLayer* scrollLayer)
{
if (!scrollLayer)
return;
GraphicsLayerChromium* layer = static_cast<GraphicsLayerChromium*>(scrollLayer);
layer->setScrollableArea(scrollableArea);
if (WebLayer* webLayer = scrollLayer->platformLayer()) {
webLayer->setScrollable(true);
webLayer->setScrollPosition(scrollableArea->scrollPosition());
webLayer->setMaxScrollPosition(IntSize(scrollableArea->scrollSize(HorizontalScrollbar), scrollableArea->scrollSize(VerticalScrollbar)));
}
}
void ScrollingCoordinatorChromium::scrollableAreaScrollLayerDidChange(ScrollableArea* scrollableArea)
{
GraphicsLayerChromium* scrollLayer = static_cast<GraphicsLayerChromium*>(scrollLayerForScrollableArea(scrollableArea));
if (scrollLayer)
scrollLayer->setScrollableArea(scrollableArea);
WebLayer* webLayer = scrollingWebLayerForScrollableArea(scrollableArea);
if (webLayer) {
webLayer->setScrollable(true);
webLayer->setScrollPosition(IntPoint(scrollableArea->scrollPosition() - scrollableArea->minimumScrollPosition()));
webLayer->setMaxScrollPosition(IntSize(scrollableArea->scrollSize(HorizontalScrollbar), scrollableArea->scrollSize(VerticalScrollbar)));
}
if (WebScrollbarLayer* scrollbarLayer = getWebScrollbarLayer(scrollableArea, HorizontalScrollbar))
setupScrollbarLayer(horizontalScrollbarLayerForScrollableArea(scrollableArea), scrollbarLayer, webLayer);
if (WebScrollbarLayer* scrollbarLayer = getWebScrollbarLayer(scrollableArea, VerticalScrollbar))
setupScrollbarLayer(verticalScrollbarLayerForScrollableArea(scrollableArea), scrollbarLayer, webLayer);
}
