PassRefPtr<RenderStyle> HTMLOptGroupElement::customStyleForRenderer()
{
// styleForRenderer is called whenever a new style should be associated
// with an Element so now is a good time to update our cached style.
updateNonRenderStyle();
return m_style;
}
void HTMLOptGroupElement::didAttachRenderers()
{
// If after attaching nothing called styleForRenderer() on this node we
// manually cache the value. This happens if our parent doesn't have a
// renderer like <optgroup> or if it doesn't allow children like <select>.
if (!m_style && parentNode()->renderStyle())
updateNonRenderStyle();
}
PassRefPtr<RenderStyle> HTMLOptGroupElement::customStyleForRenderer()
{
updateNonRenderStyle();
return m_style;
}