RenderLayerScrollableArea::~RenderLayerScrollableArea()
{
if (!box().documentBeingDestroyed()) {
Node* node = box().node();
if (node && node->isElementNode())
toElement(node)->setSavedLayerScrollOffset(m_scrollOffset);
}
destroyScrollbar(HorizontalScrollbar);
destroyScrollbar(VerticalScrollbar);
}
void RenderLayerScrollableArea::setHasVerticalScrollbar(bool hasScrollbar)
{
if (hasScrollbar == hasVerticalScrollbar())
return;
if (hasScrollbar) {
// Hits in compositing/overflow/automatically-opt-into-composited-scrolling-after-style-change.html
DisableCompositingQueryAsserts disabler;
m_vBar = createScrollbar(VerticalScrollbar);
} else {
destroyScrollbar(VerticalScrollbar);
}
}
void RenderLayerScrollableArea::setHasHorizontalScrollbar(bool hasScrollbar)
{
if (hasScrollbar == hasHorizontalScrollbar())
return;
if (hasScrollbar) {
// This doesn't hit in any tests, but since the equivalent code in setHasVerticalScrollbar
// does, presumably this code does as well.
DisableCompositingQueryAsserts disabler;
m_hBar = createScrollbar(HorizontalScrollbar);
} else {
destroyScrollbar(HorizontalScrollbar);
}
}
void ScrollbarManager::dispose() {
m_hBarIsAttached = m_vBarIsAttached = 0;
destroyScrollbar(HorizontalScrollbar);
destroyScrollbar(VerticalScrollbar);
}
