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Bug 1406297 - Fix Document.createElement must report an exception.

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Tag UXP Issue #1344
This commit is contained in:
Gaming4JC 2020-01-05 18:38:55 -05:00 • committed by Roy Tam
commit e925977c0f
2 changed files with 13 additions and 9 deletions
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4
dom/base/CustomElementRegistry.cpp
View file

@ -111,13 +111,11 @@ CustomElementConstructor::Construct(const char* aExecutionReason,
JS::Rooted<JSObject*> result(cx);
JS::Rooted<JS::Value> constructor(cx, JS::ObjectValue(*mCallback));
if (!JS::Construct(cx, constructor, JS::HandleValueArray::empty(), &result)) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
RefPtr<Element> element;
if (NS_FAILED(UNWRAP_OBJECT(Element, &result, element))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
@ -894,7 +892,7 @@ DoUpgrade(Element* aElement,
return;
}
if (constructResult.get() != aElement) {
if (!constructResult || constructResult.get() != aElement) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return;
}

18
dom/html/nsHTMLContentSink.cpp
View file

@ -233,18 +233,23 @@ public:
};
static void
DoCustomElementCreate(Element** aElement, nsIDocument* aDoc,
DoCustomElementCreate(Element** aElement, nsIDocument* aDoc, nsIAtom* aLocalName,
CustomElementConstructor* aConstructor, ErrorResult& aRv)
{
RefPtr<Element> element =
aConstructor->Construct("Custom Element Create", aRv);
if (aRv.Failed() || !element->IsHTMLElement()) {
if (aRv.Failed()) {
return;
}
if (!element || !element->IsHTMLElement()) {
aRv.ThrowTypeError<MSG_THIS_DOES_NOT_IMPLEMENT_INTERFACE>(NS_LITERAL_STRING("HTMLElement"));
return;
}
if (aDoc != element->OwnerDoc() || element->GetParentNode() ||
element->HasChildren() || element->GetAttrCount()) {
element->HasChildren() || element->GetAttrCount() ||
element->NodeInfo()->NameAtom() != aLocalName) {
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return;
}
@ -320,19 +325,20 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
(*aResult)->SetCustomElementData(new CustomElementData(typeAtom));
if (synchronousCustomElements) {
CustomElementRegistry::Upgrade(*aResult, definition, rv);
if (rv.MaybeSetPendingException(cx)) {
aes.ReportException();
}
} else {
nsContentUtils::EnqueueUpgradeReaction(*aResult, definition);
}
if (rv.MaybeSetPendingException(cx)) {
aes.ReportException();
}
return NS_OK;
}
// Step 6.1.
if (synchronousCustomElements) {
DoCustomElementCreate(aResult, nodeInfo->GetDocument(),
nodeInfo->NameAtom(),
definition->mConstructor, rv);
if (rv.MaybeSetPendingException(cx)) {
NS_IF_ADDREF(*aResult = NS_NewHTMLUnknownElement(nodeInfo.forget(), aFromParser));