static Region computeNonFastScrollableRegion(FrameView* frameView)
{
Region nonFastScrollableRegion;
HashSet<FrameView*> childFrameViews;
for (HashSet<RefPtr<Widget> >::const_iterator it = frameView->children()->begin(), end = frameView->children()->end(); it != end; ++it) {
if ((*it)->isFrameView())
childFrameViews.add(static_cast<FrameView*>(it->get()));
}
if (const FrameView::ScrollableAreaSet* scrollableAreas = frameView->scrollableAreas()) {
for (FrameView::ScrollableAreaSet::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
ScrollableArea* scrollableArea = *it;
// Check if this area can be scrolled at all.
// If this scrollable area is a frame view that itself has scrollable areas, then we need to add it to the region.
if ((!scrollableArea->horizontalScrollbar() || !scrollableArea->horizontalScrollbar()->enabled())
&& (!scrollableArea->verticalScrollbar() || !scrollableArea->verticalScrollbar()->enabled())
&& (!childFrameViews.contains(static_cast<FrameView*>(scrollableArea)) || !static_cast<FrameView*>(scrollableArea)->scrollableAreas()))
continue;
nonFastScrollableRegion.unite(scrollableArea->scrollableAreaBoundingBox());
}
}
return nonFastScrollableRegion;
}
static Region computeNonFastScrollableRegion(FrameView* frameView)
{
Region nonFastScrollableRegion;
if (const FrameView::ScrollableAreaSet* scrollableAreas = frameView->scrollableAreas()) {
for (FrameView::ScrollableAreaSet::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
ScrollableArea* scrollableArea = *it;
// Check if this area can be scrolled at all.
if ((!scrollableArea->horizontalScrollbar() || !scrollableArea->horizontalScrollbar()->enabled())
&& (!scrollableArea->verticalScrollbar() || !scrollableArea->verticalScrollbar()->enabled()))
continue;
nonFastScrollableRegion.unite(scrollableArea->scrollableAreaBoundingBox());
}
}
return nonFastScrollableRegion;
}