void ScrollingCoordinatorChromium::setWheelEventHandlerCount(unsigned wheelEventHandlerCount)
{
// We won't necessarily get a setScrollLayer() call before this one, so grab the root ourselves.
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
if (m_private->scrollLayer())
m_private->scrollLayer()->setHaveWheelEventHandlers(wheelEventHandlerCount > 0);
}
void ScrollingCoordinatorChromium::setShouldUpdateScrollLayerPositionOnMainThread(MainThreadScrollingReasons reasons)
{
// We won't necessarily get a setScrollLayer() call before this one, so grab the root ourselves.
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
if (m_private->scrollLayer())
m_private->scrollLayer()->setShouldScrollOnMainThread(reasons);
}
void ScrollingCoordinatorChromium::frameViewVerticalScrollbarLayerDidChange(FrameView* frameView, GraphicsLayer* verticalScrollbarLayer)
{
if (!verticalScrollbarLayer || !coordinatesScrollingForFrameView(frameView))
return;
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
m_private->setVerticalScrollbarLayer(createScrollbarLayer(frameView->verticalScrollbar(), m_private->scrollLayer(), verticalScrollbarLayer, frameView));
}
void ScrollingCoordinator::frameViewHorizontalScrollbarLayerDidChange(FrameView* frameView, GraphicsLayer* horizontalScrollbarLayer)
{
if (!horizontalScrollbarLayer || !coordinatesScrollingForFrameView(frameView))
return;
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
m_private->setHorizontalScrollbarLayer(createScrollbarLayer(frameView->horizontalScrollbar(), m_private->scrollLayer(), horizontalScrollbarLayer, frameView));
}
void ScrollingCoordinatorChromium::setTouchEventTargetRects(const Vector<IntRect>& absoluteHitTestRects)
{
// We won't necessarily get a setScrollLayer() call before this one, so grab the root ourselves.
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
if (m_private->scrollLayer()) {
WebVector<WebRect> webRects(absoluteHitTestRects.size());
for (size_t i = 0; i < absoluteHitTestRects.size(); ++i)
webRects[i] = absoluteHitTestRects[i];
m_private->scrollLayer()->setTouchEventHandlerRegion(webRects);
}
}
void ScrollingCoordinatorChromium::setNonFastScrollableRegion(const Region& region)
{
// We won't necessarily get a setScrollLayer() call before this one, so grab the root ourselves.
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
if (m_private->scrollLayer()) {
Vector<IntRect> rects = region.rects();
WebVector<WebRect> webRects(rects.size());
for (size_t i = 0; i < rects.size(); ++i)
webRects[i] = rects[i];
m_private->scrollLayer()->setNonFastScrollableRegion(webRects);
}
}
void ScrollingCoordinator::frameViewRootLayerDidChange(FrameView* frameView)
{
ASSERT(isMainThread());
ASSERT(m_page);
if (frameView->frame() != m_page->mainFrame())
return;
frameViewLayoutUpdated(frameView);
recomputeWheelEventHandlerCount();
updateShouldUpdateScrollLayerPositionOnMainThread();
setScrollLayer(scrollLayerForFrameView(frameView));
}
void ScrollingCoordinatorChromium::touchEventTargetRectsDidChange(const Document* document)
{
#if ENABLE(TOUCH_EVENT_TRACKING)
// Wait until after layout to update.
if (m_page->mainFrame()->view()->needsLayout())
return;
// We won't necessarily get a setScrollLayer() call before this one, so grab the root ourselves.
setScrollLayer(scrollLayerForFrameView(m_page->mainFrame()->view()));
if (m_private->scrollLayer()) {
Vector<IntRect> touchEventTargetRects;
computeAbsoluteTouchEventTargetRects(document, touchEventTargetRects);
setTouchEventTargetRects(touchEventTargetRects);
}
#else
UNUSED_PARAM(document);
#endif
}
void ScrollingCoordinatorChromium::frameViewRootLayerDidChange(FrameView* frameView)
{
ScrollingCoordinator::frameViewRootLayerDidChange(frameView);
setScrollLayer(scrollLayerForFrameView(frameView));
}