static RenderRubyRun* lastRubyRun(const RenderObject* ruby)
{
RenderObject* child = ruby->lastChild();
if (child && !child->isRubyRun())
child = child->previousSibling();
ASSERT(!child || child->isRubyRun() || child->isBeforeContent() || child == rubyBeforeBlock(ruby));
return child && child->isRubyRun() ? toRenderRubyRun(child) : 0;
}
void RenderRubyAsBlock::addChild(RenderObject* child, RenderObject* beforeChild)
{
// Insert :before and :after content before/after the RenderRubyRun(s)
if (child->isBeforeContent()) {
if (child->isInline()) {
// Add generated inline content normally
RenderBlock::addChild(child, firstChild());
} else {
// Wrap non-inline content with an anonymous inline-block.
RenderBlock* beforeBlock = rubyBeforeBlock(this);
if (!beforeBlock) {
beforeBlock = createAnonymousRubyInlineBlock(this);
RenderBlock::addChild(beforeBlock, firstChild());
}
beforeBlock->addChild(child);
}
return;
}
if (child->isAfterContent()) {
if (child->isInline()) {
// Add generated inline content normally
RenderBlock::addChild(child);
} else {
// Wrap non-inline content with an anonymous inline-block.
RenderBlock* afterBlock = rubyAfterBlock(this);
if (!afterBlock) {
afterBlock = createAnonymousRubyInlineBlock(this);
RenderBlock::addChild(afterBlock);
}
afterBlock->addChild(child);
}
return;
}
// If the child is a ruby run, just add it normally.
if (child->isRubyRun()) {
RenderBlock::addChild(child, beforeChild);
return;
}
if (beforeChild && !isAfterContent(beforeChild)) {
// insert child into run
ASSERT(!beforeChild->isRubyRun());
RenderObject* run = beforeChild;
while (run && !run->isRubyRun())
run = run->parent();
if (run) {
run->addChild(child, beforeChild);
return;
}
ASSERT_NOT_REACHED(); // beforeChild should always have a run as parent!
// Emergency fallback: fall through and just append.
}
// If the new child would be appended, try to add the child to the previous run
// if possible, or create a new run otherwise.
// (The RenderRubyRun object will handle the details)
RenderRubyRun* lastRun = lastRubyRun(this);
if (!lastRun || lastRun->hasRubyText()) {
lastRun = RenderRubyRun::staticCreateRubyRun(this);
RenderBlock::addChild(lastRun, beforeChild);
}
lastRun->addChild(child);
}
static RenderRubyRun* lastRubyRun(const RenderElement* ruby)
{
RenderObject* child = ruby->lastChild();
if (child && !is<RenderRubyRun>(*child))
child = child->previousSibling();
ASSERT(!child || is<RenderRubyRun>(*child) || child->isBeforeContent() || child == rubyBeforeBlock(ruby));
return downcast<RenderRubyRun>(child);
}