RenderNamedFlowThread* FlowThreadController::ensureRenderFlowThreadWithName(const AtomicString& name)
{
if (!m_renderNamedFlowThreadList)
m_renderNamedFlowThreadList = adoptPtr(new RenderNamedFlowThreadList());
else {
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (flowRenderer->flowThreadName() == name)
return flowRenderer;
}
}
NamedFlowCollection* namedFlows = m_view->document().namedFlows();
// Sanity check for the absence of a named flow in the "CREATED" state with the same name.
ASSERT(!namedFlows->flowByName(name));
RenderNamedFlowThread* flowRenderer = RenderNamedFlowThread::createAnonymous(&m_view->document(), namedFlows->ensureFlowWithName(name));
flowRenderer->setStyle(RenderFlowThread::createFlowThreadStyle(m_view->style()));
m_renderNamedFlowThreadList->add(flowRenderer);
// Keep the flow renderer as a child of RenderView.
m_view->addChild(flowRenderer);
setIsRenderNamedFlowThreadOrderDirty(true);
return flowRenderer;
}
void FlowThreadController::layoutRenderNamedFlowThreads()
{
ASSERT(m_renderNamedFlowThreadList);
ASSERT(isAutoLogicalHeightRegionsFlagConsistent());
// Remove the left-over flow threads.
RenderNamedFlowThreadList toRemoveList;
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (flowRenderer->isMarkedForDestruction())
toRemoveList.add(flowRenderer);
}
if (toRemoveList.size() > 0)
setIsRenderNamedFlowThreadOrderDirty(true);
for (RenderNamedFlowThreadList::iterator iter = toRemoveList.begin(); iter != toRemoveList.end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
m_renderNamedFlowThreadList->remove(flowRenderer);
flowRenderer->destroy();
}
if (isRenderNamedFlowThreadOrderDirty()) {
// Arrange the thread list according to dependencies.
RenderNamedFlowThreadList sortedList;
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (sortedList.contains(flowRenderer))
continue;
flowRenderer->pushDependencies(sortedList);
sortedList.add(flowRenderer);
}
m_renderNamedFlowThreadList->swap(sortedList);
setIsRenderNamedFlowThreadOrderDirty(false);
}
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
flowRenderer->layoutIfNeeded();
}
}
RenderNamedFlowThread* RenderView::ensureRenderFlowThreadWithName(const AtomicString& name)
{
if (!m_renderNamedFlowThreadList)
m_renderNamedFlowThreadList = adoptPtr(new RenderNamedFlowThreadList());
else {
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (flowRenderer->flowThreadName() == name)
return flowRenderer;
}
}
RenderNamedFlowThread* flowRenderer = new (renderArena()) RenderNamedFlowThread(document(), name);
flowRenderer->setStyle(RenderFlowThread::createFlowThreadStyle(style()));
addChild(flowRenderer);
m_renderNamedFlowThreadList->add(flowRenderer);
setIsRenderNamedFlowThreadOrderDirty(true);
return flowRenderer;
}
void RenderView::layoutRenderNamedFlowThreads()
{
ASSERT(m_renderNamedFlowThreadList);
if (isRenderNamedFlowThreadOrderDirty()) {
// Arrange the thread list according to dependencies.
RenderNamedFlowThreadList sortedList;
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (sortedList.contains(flowRenderer))
continue;
flowRenderer->pushDependencies(sortedList);
sortedList.add(flowRenderer);
}
m_renderNamedFlowThreadList->swap(sortedList);
setIsRenderNamedFlowThreadOrderDirty(false);
}
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
flowRenderer->layoutIfNeeded();
}
}
void FlowThreadController::removeFlowThread(RenderNamedFlowThread* flowThread)
{
m_renderNamedFlowThreadList->remove(flowThread);
setIsRenderNamedFlowThreadOrderDirty(true);
}