bool RenderNamedFlowFragment::shouldClipFlowThreadContent() const
{
if (fragmentContainer().hasOverflowClip())
return true;
return isLastRegion() && (style().regionFragment() == BreakRegionFragment);
}
LayoutSize RenderNamedFlowFragment::offsetFromContainer(RenderObject* o, const LayoutPoint&, bool*) const
{
ASSERT(&fragmentContainer() == o);
ASSERT(container() == o);
UNUSED_PARAM(o);
return topLeftLocationOffset();
}
LayoutRect RenderNamedFlowFragment::flowThreadPortionRectForClipping(bool isFirstRegionInRange, bool isLastRegionInRange) const
{
// Elements flowed into a region should not be painted past the region's content box
// if they continue to flow into another region in that direction.
// If they do not continue into another region in that direction, they should be
// painted all the way to the region's border box.
// Regions with overflow:hidden will apply clip at the border box, not the content box.
LayoutRect clippingRect = flowThreadPortionRect();
RenderBlockFlow& container = fragmentContainer();
if (container.style().hasPadding()) {
if (isFirstRegionInRange) {
if (flowThread()->isHorizontalWritingMode()) {
clippingRect.move(0, -container.paddingBefore());
clippingRect.expand(0, container.paddingBefore());
} else {
clippingRect.move(-container.paddingBefore(), 0);
clippingRect.expand(container.paddingBefore(), 0);
}
}
if (isLastRegionInRange) {
if (flowThread()->isHorizontalWritingMode())
clippingRect.expand(0, container.paddingAfter());
else
clippingRect.expand(container.paddingAfter(), 0);
}
if (flowThread()->isHorizontalWritingMode()) {
clippingRect.move(-container.paddingStart(), 0);
clippingRect.expand(container.paddingStart() + container.paddingEnd(), 0);
} else {
clippingRect.move(0, -container.paddingStart());
clippingRect.expand(0, container.paddingStart() + container.paddingEnd());
}
}
return clippingRect;
}
LayoutSize RenderNamedFlowFragment::offsetFromContainer(RenderElement& container, const LayoutPoint&, bool*) const
{
ASSERT_UNUSED(container, &fragmentContainer() == &container);
ASSERT_UNUSED(container, this->container() == &container);
return topLeftLocationOffset();
}
RenderLayer& RenderNamedFlowFragment::fragmentContainerLayer() const
{
ASSERT(fragmentContainer().layer());
return *fragmentContainer().layer();
}
