void
nsXHTMLContentSerializer::MaybeLeaveFromPreContent(nsIContent* aNode)
{
if (!ShouldMaintainPreLevel() ||
!aNode->IsHTMLElement()) {
return;
}
if (IsElementPreformatted(aNode) ||
aNode->IsAnyOfHTMLElements(nsGkAtoms::script,
nsGkAtoms::style,
nsGkAtoms::noscript,
nsGkAtoms::noframes)) {
--PreLevel();
}
}
bool
nsXHTMLContentSerializer::IsElementPreformatted(nsIContent* aNode)
{
MOZ_ASSERT(ShouldMaintainPreLevel(), "We should not be calling this needlessly");
if (!aNode->IsElement()) {
return false;
}
RefPtr<nsStyleContext> styleContext =
nsComputedDOMStyle::GetStyleContextNoFlush(aNode->AsElement(),
nullptr, nullptr);
if (styleContext) {
const nsStyleText* textStyle = styleContext->StyleText();
return textStyle->WhiteSpaceOrNewlineIsSignificant();
}
return false;
}
void
nsXHTMLContentSerializer::MaybeLeaveFromPreContent(nsIContent* aNode)
{
if (!ShouldMaintainPreLevel() ||
aNode->GetNameSpaceID() != kNameSpaceID_XHTML) {
return;
}
nsIAtom *name = aNode->Tag();
if (IsElementPreformatted(aNode) ||
name == nsGkAtoms::script ||
name == nsGkAtoms::style ||
name == nsGkAtoms::noscript ||
name == nsGkAtoms::noframes
) {
--PreLevel();
}
}
