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Bug 1419643 - Don't need to lookup custom element definition for a non-custom element

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Tag UXP Issue #1344
This commit is contained in:
Gaming4JC 2020-01-20 21:44:27 -05:00 • committed by Roy Tam
commit 5776911c05
1 changed files with 8 additions and 5 deletions
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13
dom/html/nsHTMLContentSink.cpp
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@ -275,12 +275,18 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
int32_t tag = parserService->HTMLCaseSensitiveAtomTagToId(name);
bool isCustomElementName = (tag == eHTMLTag_userdefined &&
nsContentUtils::IsCustomElementName(name));
bool isCustomElement = isCustomElementName || aIs;
MOZ_ASSERT_IF(aDefinition, isCustomElement);
// https://dom.spec.whatwg.org/#concept-create-element
// We only handle the "synchronous custom elements flag is set" now.
// For the unset case (e.g. cloning a node), see bug 1319342 for that.
// Step 4.
CustomElementDefinition* definition = aDefinition;
if (!definition && CustomElementRegistry::IsCustomElementEnabled()) {
if (CustomElementRegistry::IsCustomElementEnabled() && isCustomElement &&
!definition) {
definition =
nsContentUtils::LookupCustomElementDefinition(nodeInfo->GetDocument(),
nodeInfo->LocalName(),
@ -363,8 +369,6 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
// Per the Custom Element specification, unknown tags that are valid custom
// element names should be HTMLElement instead of HTMLUnknownElement.
bool isCustomElementName = (tag == eHTMLTag_userdefined &&
nsContentUtils::IsCustomElementName(name));
if (isCustomElementName) {
NS_IF_ADDREF(*aResult = NS_NewHTMLElement(nodeInfo.forget(), aFromParser));
} else {
@ -375,8 +379,7 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
return NS_ERROR_OUT_OF_MEMORY;
}
if (CustomElementRegistry::IsCustomElementEnabled() &&
(isCustomElementName || aIs)) {
if (CustomElementRegistry::IsCustomElementEnabled() && isCustomElement) {
(*aResult)->SetCustomElementData(new CustomElementData(typeAtom));
}