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Bug 1378079 - Part 3: Complete the steps related to custom elements in "create an element for a token".

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With fixup for missing header due to unified builds.

Tag UXP Issue #1344
This commit is contained in:
Gaming4JC 2020-01-19 21:22:39 -05:00 • committed by Roy Tam
commit 5d26d32825
8 changed files with 203 additions and 141 deletions
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25
dom/html/nsHTMLContentSink.cpp
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@ -255,7 +255,8 @@ DoCustomElementCreate(Element** aElement, nsIDocument* aDoc, nsIAtom* aLocalName
nsresult
NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
FromParser aFromParser, const nsAString* aIs)
FromParser aFromParser, const nsAString* aIs,
mozilla::dom::CustomElementDefinition* aDefinition)
{
*aResult = nullptr;
@ -276,8 +277,8 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
// 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 = nullptr;
if (CustomElementRegistry::IsCustomElementEnabled()) {
CustomElementDefinition* definition = aDefinition;
if (!definition && CustomElementRegistry::IsCustomElementEnabled()) {
definition =
nsContentUtils::LookupCustomElementDefinition(nodeInfo->GetDocument(),
nodeInfo->LocalName(),
@ -302,9 +303,20 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
bool synchronousCustomElements = aFromParser != dom::FROM_PARSER_FRAGMENT ||
aFromParser == dom::NOT_FROM_PARSER;
// Per discussion in https://github.com/w3c/webcomponents/issues/635,
// use entry global in those places that are called from JS APIs.
nsIGlobalObject* global = GetEntryGlobal();
MOZ_ASSERT(global);
// use entry global in those places that are called from JS APIs and use the
// node document's global object if it is called from parser.
nsIGlobalObject* global;
if (aFromParser == dom::NOT_FROM_PARSER) {
global = GetEntryGlobal();
} else {
global = nodeInfo->GetDocument()->GetScopeObject();
}
if (!global) {
// In browser chrome code, one may have access to a document which doesn't
// have scope object anymore.
return NS_ERROR_FAILURE;
}
AutoEntryScript aes(global, "create custom elements");
JSContext* cx = aes.cx();
ErrorResult rv;
@ -344,6 +356,7 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
// Step 6.2.
NS_IF_ADDREF(*aResult = NS_NewHTMLElement(nodeInfo.forget(), aFromParser));
(*aResult)->SetCustomElementData(new CustomElementData(definition->mType));
nsContentUtils::EnqueueUpgradeReaction(*aResult, definition);
return NS_OK;
}