void
HTMLLinkElement::UpdateImport()
{
// 1. link node should be attached to the document.
nsCOMPtr<nsIDocument> doc = GetCurrentDoc();
if (!doc) {
// We might have been just removed from the document, so
// let's remove ourself from the list of link nodes of
// the import and reset mImportLoader.
if (mImportLoader) {
mImportLoader->RemoveLinkElement(this);
mImportLoader = nullptr;
}
return;
}
// Until the script execution order is not sorted out for nested cases
// let's not allow them.
if (!doc->IsMasterDocument()) {
nsContentUtils::LogSimpleConsoleError(
NS_LITERAL_STRING("Nested imports are not supported yet"),
"Imports");
return;
}
// 2. rel type should be import.
nsAutoString rel;
GetAttr(kNameSpaceID_None, nsGkAtoms::rel, rel);
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(rel);
if (!(linkTypes & eHTMLIMPORT)) {
mImportLoader = nullptr;
return;
}
nsCOMPtr<nsIURI> uri = GetHrefURI();
if (!uri) {
mImportLoader = nullptr;
return;
}
if (!nsStyleLinkElement::IsImportEnabled()) {
// For now imports are hidden behind a pref...
return;
}
nsRefPtr<ImportManager> manager = doc->ImportManager();
MOZ_ASSERT(manager, "ImportManager should be created lazily when needed");
{
// The load even might fire sooner than we could set mImportLoader so
// we must use async event and a scriptBlocker here.
nsAutoScriptBlocker scriptBlocker;
// CORS check will happen at the start of the load.
mImportLoader = manager->Get(uri, this, doc);
}
}
void
HTMLLinkElement::UpdateImport()
{
// 1. link node should be attached to the document.
nsCOMPtr<nsIDocument> doc = GetUncomposedDoc();
if (!doc) {
// We might have been just removed from the document, so
// let's remove ourself from the list of link nodes of
// the import and reset mImportLoader.
if (mImportLoader) {
mImportLoader->RemoveLinkElement(this);
mImportLoader = nullptr;
}
return;
}
// 2. rel type should be import.
nsAutoString rel;
GetAttr(kNameSpaceID_None, nsGkAtoms::rel, rel);
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(rel, NodePrincipal());
if (!(linkTypes & eHTMLIMPORT)) {
mImportLoader = nullptr;
return;
}
nsCOMPtr<nsIURI> uri = GetHrefURI();
if (!uri) {
mImportLoader = nullptr;
return;
}
if (!nsStyleLinkElement::IsImportEnabled()) {
// For now imports are hidden behind a pref...
return;
}
nsRefPtr<ImportManager> manager = doc->ImportManager();
MOZ_ASSERT(manager, "ImportManager should be created lazily when needed");
{
// The load even might fire sooner than we could set mImportLoader so
// we must use async event and a scriptBlocker here.
nsAutoScriptBlocker scriptBlocker;
// CORS check will happen at the start of the load.
mImportLoader = manager->Get(uri, this, doc);
}
}
void
HTMLLinkElement::UpdatePreconnect()
{
// rel type should be preconnect
nsAutoString rel;
if (!GetAttr(kNameSpaceID_None, nsGkAtoms::rel, rel)) {
return;
}
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(rel, NodePrincipal());
if (!(linkTypes & ePRECONNECT)) {
return;
}
nsIDocument *owner = OwnerDoc();
if (owner) {
nsCOMPtr<nsIURI> uri = GetHrefURI();
if (uri) {
owner->MaybePreconnect(uri, GetCORSMode());
}
}
}
void
HTMLLinkElement::UpdatePreconnect()
{
// rel type should be preconnect
nsAutoString rel;
if (!GetAttr(kNameSpaceID_None, nsGkAtoms::rel, rel)) {
return;
}
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(rel, NodePrincipal());
if (!(linkTypes & ePRECONNECT)) {
return;
}
nsCOMPtr<nsISpeculativeConnect>
speculator(do_QueryInterface(nsContentUtils::GetIOService()));
if (speculator) {
nsCOMPtr<nsIURI> uri = GetHrefURI();
if (uri) {
speculator->SpeculativeConnect(uri, nullptr);
}
}
}
