void RenderNamedFlowThread::removeRegionFromThread(RenderRegion* renderRegion)
{
ASSERT(renderRegion);
RenderNamedFlowFragment* renderNamedFlowFragment = toRenderNamedFlowFragment(renderRegion);
if (renderNamedFlowFragment->parentNamedFlowThread()) {
if (!renderNamedFlowFragment->isValid()) {
ASSERT(m_invalidRegionList.contains(renderNamedFlowFragment));
m_invalidRegionList.remove(renderNamedFlowFragment);
renderNamedFlowFragment->parentNamedFlowThread()->m_observerThreadsSet.remove(this);
// No need to invalidate the regions rectangles. The removed region
// was not taken into account. Just return here.
return;
}
removeDependencyOnFlowThread(renderNamedFlowFragment->parentNamedFlowThread());
}
ASSERT(m_regionList.contains(renderNamedFlowFragment));
bool wasFirst = m_regionList.first() == renderNamedFlowFragment;
m_regionList.remove(renderNamedFlowFragment);
if (canBeDestroyed())
setMarkForDestruction();
if (!m_regionList.isEmpty() && wasFirst)
updateWritingMode();
invalidateRegions();
}
void RenderNamedFlowThread::removeRegionFromThread(RenderRegion* renderRegion)
{
ASSERT(renderRegion);
if (renderRegion->parentNamedFlowThread()) {
if (!renderRegion->isValid()) {
ASSERT(m_invalidRegionList.contains(renderRegion));
m_invalidRegionList.remove(renderRegion);
renderRegion->parentNamedFlowThread()->m_observerThreadsSet.remove(this);
// No need to invalidate the regions rectangles. The removed region
// was not taken into account. Just return here.
return;
}
removeDependencyOnFlowThread(renderRegion->parentNamedFlowThread());
}
ASSERT(m_regionList.contains(renderRegion));
bool wasFirst = m_regionList.first() == renderRegion;
m_regionList.remove(renderRegion);
if (canBeDestroyed())
setMarkForDestruction();
// After removing all the regions in the flow the following layout needs to dispatch the regionLayoutUpdate event
if (m_regionList.isEmpty())
setDispatchRegionLayoutUpdateEvent(true);
else if (wasFirst)
updateWritingMode();
invalidateRegions();
}
void RenderNamedFlowThread::addRegionToNamedFlowThread(RenderRegion* renderRegion)
{
ASSERT(renderRegion);
ASSERT(!renderRegion->isValid());
if (renderRegion->parentNamedFlowThread())
addDependencyOnFlowThread(renderRegion->parentNamedFlowThread());
renderRegion->setIsValid(true);
addRegionToList(m_regionList, renderRegion);
if (m_regionList.first() == renderRegion)
updateWritingMode();
}
void RenderNamedFlowThread::addFragmentToNamedFlowThread(RenderNamedFlowFragment* renderNamedFlowFragment)
{
ASSERT(renderNamedFlowFragment);
ASSERT(!renderNamedFlowFragment->isValid());
if (renderNamedFlowFragment->parentNamedFlowThread())
addDependencyOnFlowThread(renderNamedFlowFragment->parentNamedFlowThread());
renderNamedFlowFragment->setIsValid(true);
renderNamedFlowFragment->updateRegionFlags();
addFragmentToList(m_regionList, renderNamedFlowFragment);
if (m_regionList.first() == renderNamedFlowFragment)
updateWritingMode();
}
void RenderNamedFlowThread::regionChangedWritingMode(RenderRegion* region)
{
if (m_regionList.first() == region)
updateWritingMode();
}
