PassRefPtr<Scrollbar> RenderLayerScrollableArea::createScrollbar(ScrollbarOrientation orientation)
{
RefPtr<Scrollbar> widget = Scrollbar::create(this, orientation);
if (orientation == HorizontalScrollbar)
didAddScrollbar(widget.get(), HorizontalScrollbar);
else
didAddScrollbar(widget.get(), VerticalScrollbar);
return widget.release();
}
void ScrollbarGroup::scrollbarCreated(WebPluginScrollbarImpl* scrollbar)
{
bool hadScrollbars = m_horizontalScrollbar || m_verticalScrollbar;
if (scrollbar->scrollbar()->orientation() == HorizontalScrollbar) {
ASSERT(!m_horizontalScrollbar);
m_horizontalScrollbar = scrollbar;
didAddScrollbar(scrollbar->scrollbar(), HorizontalScrollbar);
} else {
ASSERT(!m_verticalScrollbar);
m_verticalScrollbar = scrollbar;
didAddScrollbar(scrollbar->scrollbar(), VerticalScrollbar);
}
if (!hadScrollbars) {
m_frameView->addScrollableArea(this);
m_frameView->setNeedsLayout();
}
}