void
nsHtml5DocumentBuilder::UpdateStyleSheet(nsIContent* aElement)
{
nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(aElement));
if (!ssle) {
MOZ_ASSERT(nsNameSpaceManager::GetInstance()->mSVGDisabled, "Node didn't QI to style, but SVG wasn't disabled.");
return;
}
// Break out of the doc update created by Flush() to zap a runnable
// waiting to call UpdateStyleSheet without the right observer
EndDocUpdate();
if (MOZ_UNLIKELY(!mParser)) {
// EndDocUpdate ran stuff that called nsIParser::Terminate()
return;
}
ssle->SetEnableUpdates(true);
bool willNotify;
bool isAlternate;
nsresult rv = ssle->UpdateStyleSheet(mRunsToCompletion ? nullptr : this,
&willNotify,
&isAlternate);
if (NS_SUCCEEDED(rv) && willNotify && !isAlternate && !mRunsToCompletion) {
++mPendingSheetCount;
mScriptLoader->AddParserBlockingScriptExecutionBlocker();
}
// Re-open update
BeginDocUpdate();
}
void
nsHtml5DocumentBuilder::UpdateStyleSheet(nsIContent* aElement)
{
// Break out of the doc update created by Flush() to zap a runnable
// waiting to call UpdateStyleSheet without the right observer
EndDocUpdate();
if (MOZ_UNLIKELY(!mParser)) {
// EndDocUpdate ran stuff that called nsIParser::Terminate()
return;
}
nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(aElement));
NS_ASSERTION(ssle, "Node didn't QI to style.");
ssle->SetEnableUpdates(true);
bool willNotify;
bool isAlternate;
nsresult rv = ssle->UpdateStyleSheet(mRunsToCompletion ? nullptr : this,
&willNotify,
&isAlternate);
if (NS_SUCCEEDED(rv) && willNotify && !isAlternate && !mRunsToCompletion) {
++mPendingSheetCount;
mScriptLoader->AddExecuteBlocker();
}
if (aElement->IsHTML(nsGkAtoms::link)) {
// look for <link rel="next" href="url">
nsAutoString relVal;
aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::rel, relVal);
if (!relVal.IsEmpty()) {
uint32_t linkTypes =
nsStyleLinkElement::ParseLinkTypes(relVal, aElement->NodePrincipal());
bool hasPrefetch = linkTypes & nsStyleLinkElement::ePREFETCH;
if (hasPrefetch || (linkTypes & nsStyleLinkElement::eNEXT)) {
nsAutoString hrefVal;
aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::href, hrefVal);
if (!hrefVal.IsEmpty()) {
PrefetchHref(hrefVal, aElement, hasPrefetch);
}
}
if (linkTypes & nsStyleLinkElement::eDNS_PREFETCH) {
nsAutoString hrefVal;
aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::href, hrefVal);
if (!hrefVal.IsEmpty()) {
PrefetchDNS(hrefVal);
}
}
}
}
// Re-open update
BeginDocUpdate();
}