void PinchViewports::setupScrollbar(WebScrollbar::Orientation orientation)
{
bool isHorizontal = orientation == WebScrollbar::Horizontal;
GraphicsLayer* scrollbarGraphicsLayer = isHorizontal ?
m_overlayScrollbarHorizontal.get() : m_overlayScrollbarVertical.get();
OwnPtr<WebScrollbarLayer>& webScrollbarLayer = isHorizontal ?
m_webOverlayScrollbarHorizontal : m_webOverlayScrollbarVertical;
const int overlayScrollbarThickness = m_owner->settingsImpl()->pinchOverlayScrollbarThickness();
if (!webScrollbarLayer) {
WebCore::ScrollingCoordinator* coordinator = m_owner->page()->scrollingCoordinator();
ASSERT(coordinator);
WebCore::ScrollbarOrientation webcoreOrientation = isHorizontal ? WebCore::HorizontalScrollbar : WebCore::VerticalScrollbar;
webScrollbarLayer = coordinator->createSolidColorScrollbarLayer(webcoreOrientation, overlayScrollbarThickness, false);
webScrollbarLayer->setClipLayer(m_innerViewportContainerLayer->platformLayer());
scrollbarGraphicsLayer->setContentsToPlatformLayer(webScrollbarLayer->layer());
scrollbarGraphicsLayer->setDrawsContent(false);
}
int xPosition = isHorizontal ? 0 : m_innerViewportContainerLayer->size().width() - overlayScrollbarThickness;
int yPosition = isHorizontal ? m_innerViewportContainerLayer->size().height() - overlayScrollbarThickness : 0;
int width = isHorizontal ? m_innerViewportContainerLayer->size().width() - overlayScrollbarThickness : overlayScrollbarThickness;
int height = isHorizontal ? overlayScrollbarThickness : m_innerViewportContainerLayer->size().height() - overlayScrollbarThickness;
// Use the GraphicsLayer to position the scrollbars.
scrollbarGraphicsLayer->setPosition(WebCore::IntPoint(xPosition, yPosition));
scrollbarGraphicsLayer->setSize(WebCore::IntSize(width, height));
scrollbarGraphicsLayer->setContentsRect(WebCore::IntRect(0, 0, width, height));
}
