void RenderRegion::attachRegion()
{
if (documentBeingDestroyed())
return;
// A region starts off invalid.
setIsValid(false);
// Initialize the flow thread reference and create the flow thread object if needed.
// The flow thread lifetime is influenced by the number of regions attached to it,
// and we are attaching the region to the flow thread.
installFlowThread();
if (!m_flowThread)
return;
// Only after adding the region to the thread, the region is marked to be valid.
m_flowThread->addRegionToThread(this);
// The region just got attached to the flow thread, lets check whether
// it has region styling rules associated.
checkRegionStyle();
if (!isValid())
return;
m_hasAutoLogicalHeight = shouldHaveAutoLogicalHeight();
if (hasAutoLogicalHeight())
incrementAutoLogicalHeightCount();
}
void RenderNamedFlowFragment::updateRegionHasAutoLogicalHeightFlag()
{
ASSERT(isValid());
bool didHaveAutoLogicalHeight = m_hasAutoLogicalHeight;
m_hasAutoLogicalHeight = shouldHaveAutoLogicalHeight();
if (didHaveAutoLogicalHeight == m_hasAutoLogicalHeight)
return;
if (m_hasAutoLogicalHeight)
incrementAutoLogicalHeightCount();
else {
clearComputedAutoHeight();
decrementAutoLogicalHeightCount();
}
}
void RenderRegion::updateRegionHasAutoLogicalHeightFlag()
{
ASSERT(m_flowThread);
if (!isValid())
return;
bool didHaveAutoLogicalHeight = m_hasAutoLogicalHeight;
m_hasAutoLogicalHeight = shouldHaveAutoLogicalHeight();
if (m_hasAutoLogicalHeight != didHaveAutoLogicalHeight) {
if (m_hasAutoLogicalHeight)
incrementAutoLogicalHeightCount();
else {
clearOverrideLogicalContentHeight();
decrementAutoLogicalHeightCount();
}
}
}
void RenderNamedFlowFragment::attachRegion()
{
RenderRegion::attachRegion();
if (documentBeingDestroyed() || !m_flowThread)
return;
// The region just got attached to the flow thread, lets check whether
// it has region styling rules associated.
checkRegionStyle();
if (!isValid())
return;
m_hasAutoLogicalHeight = shouldHaveAutoLogicalHeight();
if (hasAutoLogicalHeight())
incrementAutoLogicalHeightCount();
}
