void RenderQuote::attachQuote()
{
ASSERT(view());
ASSERT(!m_attached);
ASSERT(!m_next && !m_previous);
ASSERT(isRooted());
if (!view()->renderQuoteHead()) {
view()->setRenderQuoteHead(this);
m_attached = true;
return;
}
for (RenderObject* predecessor = previousInPreOrder(); predecessor; predecessor = predecessor->previousInPreOrder()) {
// Skip unattached predecessors to avoid having stale m_previous pointers
// if the previous node is never attached and is then destroyed.
if (!predecessor->isQuote() || !toRenderQuote(predecessor)->isAttached())
continue;
m_previous = toRenderQuote(predecessor);
m_next = m_previous->m_next;
m_previous->m_next = this;
if (m_next)
m_next->m_previous = this;
break;
}
if (!m_previous) {
m_next = view()->renderQuoteHead();
view()->setRenderQuoteHead(this);
if (m_next)
m_next->m_previous = this;
}
m_attached = true;
for (RenderQuote* quote = this; quote; quote = quote->m_next)
quote->updateDepth();
ASSERT(!m_next || m_next->m_attached);
ASSERT(!m_next || m_next->m_previous == this);
ASSERT(!m_previous || m_previous->m_attached);
ASSERT(!m_previous || m_previous->m_next == this);
}
void RenderQuote::detachQuote()
{
ASSERT(!m_next || m_next->m_isAttached);
ASSERT(!m_previous || m_previous->m_isAttached);
if (!m_isAttached)
return;
if (m_previous)
m_previous->m_next = m_next;
else
view().setRenderQuoteHead(m_next);
if (m_next)
m_next->m_previous = m_previous;
if (!documentBeingDestroyed()) {
for (RenderQuote* quote = m_next; quote; quote = quote->m_next)
quote->updateDepth();
}
m_isAttached = false;
m_next = 0;
m_previous = 0;
}
void RenderQuote::attachQuote()
{
ASSERT(!m_isAttached);
ASSERT(!m_next);
ASSERT(!m_previous);
ASSERT(isRooted());
// Optimize case where this is the first quote in a RenderView by not searching for predecessors in that case.
if (view().renderQuoteHead()) {
for (RenderObject* predecessor = previousInPreOrder(); predecessor; predecessor = predecessor->previousInPreOrder()) {
// Skip unattached predecessors to avoid having stale m_previous pointers
// if the previous node is never attached and is then destroyed.
if (!is<RenderQuote>(*predecessor) || !downcast<RenderQuote>(*predecessor).m_isAttached)
continue;
m_previous = downcast<RenderQuote>(predecessor);
m_next = m_previous->m_next;
m_previous->m_next = this;
if (m_next)
m_next->m_previous = this;
break;
}
}
if (!m_previous) {
m_next = view().renderQuoteHead();
view().setRenderQuoteHead(this);
if (m_next)
m_next->m_previous = this;
}
m_isAttached = true;
for (RenderQuote* quote = this; quote; quote = quote->m_next)
quote->updateDepth();
ASSERT(!m_next || m_next->m_isAttached);
ASSERT(!m_next || m_next->m_previous == this);
ASSERT(!m_previous || m_previous->m_isAttached);
ASSERT(!m_previous || m_previous->m_next == this);
}
