Bug 1378079 - Part 3: Complete the steps related to custom elements in "create an element for a token". r=hsivonen,smaug
This commit is contained in:
Jessica Jong
@@ -74,6 +74,29 @@ class MOZ_STACK_CLASS nsHtml5OtherDocUpdate {
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nsCOMPtr<nsIDocument> mDocument;
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};
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/**
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* Helper class to temporary break out of the document update batch. Use this
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* with caution as this will cause blocked scripts to run.
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*/
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class MOZ_RAII mozAutoPauseContentUpdate final
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{
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public:
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explicit mozAutoPauseContentUpdate(nsIDocument* aDocument)
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: mDocument(aDocument)
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{
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MOZ_ASSERT(mDocument);
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mDocument->EndUpdate(UPDATE_CONTENT_MODEL);
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}
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~mozAutoPauseContentUpdate()
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{
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mDocument->BeginUpdate(UPDATE_CONTENT_MODEL);
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}
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private:
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nsCOMPtr<nsIDocument> mDocument;
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};
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nsHtml5TreeOperation::nsHtml5TreeOperation()
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: mOpCode(eTreeOpUninitialized)
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{
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@@ -327,6 +350,48 @@ nsHtml5TreeOperation::AddAttributes(nsIContent* aNode,
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return NS_OK;
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}
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void
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nsHtml5TreeOperation::SetHTMLElementAttributes(dom::Element* aElement,
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nsAtom* aName,
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nsHtml5HtmlAttributes* aAttributes)
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{
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int32_t len = aAttributes->getLength();
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for (int32_t i = 0; i < len; i++) {
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nsHtml5String val = aAttributes->getValueNoBoundsCheck(i);
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nsAtom* klass = val.MaybeAsAtom();
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if (klass) {
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aElement->SetSingleClassFromParser(klass);
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} else {
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// prefix doesn't need regetting. it is always null or a static atom
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// local name is never null
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RefPtr<nsAtom> localName =
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Reget(aAttributes->getLocalNameNoBoundsCheck(i));
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RefPtr<nsAtom> prefix = aAttributes->getPrefixNoBoundsCheck(i);
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int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
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nsString value; // Not Auto, because using it to hold nsStringBuffer*
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val.ToString(value);
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if (nsGkAtoms::a == aName && nsGkAtoms::name == localName) {
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// This is an HTML5-incompliant Geckoism.
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// Remove when fixing bug 582361
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NS_ConvertUTF16toUTF8 cname(value);
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NS_ConvertUTF8toUTF16 uv(nsUnescape(cname.BeginWriting()));
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aElement->SetAttr(nsuri,
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localName,
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prefix,
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uv,
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false);
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} else {
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aElement->SetAttr(nsuri,
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localName,
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prefix,
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value,
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false);
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}
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}
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}
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}
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nsIContent*
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nsHtml5TreeOperation::CreateHTMLElement(
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nsAtom* aName,
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@@ -346,109 +411,132 @@ nsHtml5TreeOperation::CreateHTMLElement(
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aName, nullptr, kNameSpaceID_XHTML, nsIDOMNode::ELEMENT_NODE);
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NS_ASSERTION(nodeInfo, "Got null nodeinfo.");
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nsCOMPtr<dom::Element> newElement = aCreator(nodeInfo.forget(), aFromParser);
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dom::Element* newContent = nullptr;
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nsIDocument* document = nodeInfo->GetDocument();
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bool willExecuteScript = false;
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bool isCustomElement = false;
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nsString isValue;
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dom::CustomElementDefinition* definition = nullptr;
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MOZ_ASSERT(newElement, "Element creation created null pointer.");
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dom::Element* newContent = newElement;
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aBuilder->HoldElement(newElement.forget());
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if (aCreator == NS_NewCustomElement) {
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// Not inlining the call below into NS_NewCustomElement itself, because
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// in the near future, the code here will need to break out of an update
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// batch here.
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nsContentUtils::SetupCustomElement(newContent);
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}
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if (MOZ_UNLIKELY(aName == nsGkAtoms::style || aName == nsGkAtoms::link)) {
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nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(newContent));
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if (ssle) {
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ssle->InitStyleLinkElement(false);
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ssle->SetEnableUpdates(false);
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}
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} else if (MOZ_UNLIKELY(isKeygen)) {
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// Adapted from CNavDTD
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nsresult rv;
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nsCOMPtr<nsIFormProcessor> theFormProcessor =
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do_GetService(kFormProcessorCID, &rv);
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if (NS_FAILED(rv)) {
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return newContent;
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// Avoid overhead by checking if custom elements pref is enabled or not.
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if (nsContentUtils::IsCustomElementsEnabled()) {
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if (aAttributes) {
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nsHtml5String is = aAttributes->getValue(nsHtml5AttributeName::ATTR_IS);
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if (is) {
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is.ToString(isValue);
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}
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}
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nsTArray<nsString> theContent;
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nsAutoString theAttribute;
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isCustomElement = (aCreator == NS_NewCustomElement || !isValue.IsEmpty());
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if (isCustomElement && aFromParser != dom::FROM_PARSER_FRAGMENT) {
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definition = nsContentUtils::LookupCustomElementDefinition(document,
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nodeInfo->LocalName(), nodeInfo->NamespaceID(),
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(isValue.IsEmpty() ? nullptr : &isValue));
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(void) theFormProcessor->ProvideContent(NS_LITERAL_STRING("select"),
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theContent,
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theAttribute);
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newContent->SetAttr(kNameSpaceID_None,
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nsGkAtoms::moztype,
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nullptr,
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theAttribute,
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false);
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RefPtr<dom::NodeInfo> optionNodeInfo = aNodeInfoManager->GetNodeInfo(
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nsGkAtoms::option, nullptr, kNameSpaceID_XHTML, nsIDOMNode::ELEMENT_NODE);
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for (uint32_t i = 0; i < theContent.Length(); ++i) {
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RefPtr<dom::NodeInfo> ni = optionNodeInfo;
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nsCOMPtr<dom::Element> optionElt =
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NS_NewHTMLOptionElement(ni.forget(), aFromParser);
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RefPtr<nsTextNode> optionText = new nsTextNode(aNodeInfoManager);
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(void) optionText->SetText(theContent[i], false);
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optionElt->AppendChildTo(optionText, false);
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newContent->AppendChildTo(optionElt, false);
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}
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newContent->DoneAddingChildren(false);
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}
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if (!aAttributes) {
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return newContent;
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}
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int32_t len = aAttributes->getLength();
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for (int32_t i = 0; i < len; i++) {
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nsHtml5String val = aAttributes->getValueNoBoundsCheck(i);
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nsAtom* klass = val.MaybeAsAtom();
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if (klass) {
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newContent->SetSingleClassFromParser(klass);
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} else {
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// prefix doesn't need regetting. it is always null or a static atom
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// local name is never null
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RefPtr<nsAtom> localName =
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Reget(aAttributes->getLocalNameNoBoundsCheck(i));
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RefPtr<nsAtom> prefix = aAttributes->getPrefixNoBoundsCheck(i);
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int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
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nsString value; // Not Auto, because using it to hold nsStringBuffer*
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val.ToString(value);
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if (nsGkAtoms::a == aName && nsGkAtoms::name == localName) {
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// This is an HTML5-incompliant Geckoism.
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// Remove when fixing bug 582361
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NS_ConvertUTF16toUTF8 cname(value);
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NS_ConvertUTF8toUTF16 uv(nsUnescape(cname.BeginWriting()));
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newContent->SetAttr(nsuri,
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localName,
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prefix,
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uv,
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false);
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} else {
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newContent->SetAttr(nsuri,
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localName,
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prefix,
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value,
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false);
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// Custom element setup may be needed if there is an "is" attribute.
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if (nsContentUtils::IsWebComponentsEnabled() &&
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kNameSpaceID_None == nsuri &&
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!prefix && nsGkAtoms::is == localName) {
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nsContentUtils::SetupCustomElement(newContent, &value);
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}
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if (definition) {
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willExecuteScript = true;
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}
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}
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}
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if (willExecuteScript) { // This will cause custom element constructors to run
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AutoSetThrowOnDynamicMarkupInsertionCounter
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throwOnDynamicMarkupInsertionCounter(document);
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mozAutoPauseContentUpdate autoPauseContentUpdate(document);
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{
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nsAutoMicroTask mt;
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}
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dom::AutoCEReaction
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autoCEReaction(document->GetDocGroup()->CustomElementReactionsStack());
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nsCOMPtr<dom::Element> newElement;
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NS_NewHTMLElement(getter_AddRefs(newElement), nodeInfo.forget(),
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aFromParser, (isValue.IsEmpty() ? nullptr : &isValue),
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definition);
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MOZ_ASSERT(newElement, "Element creation created null pointer.");
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newContent = newElement;
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aBuilder->HoldElement(newElement.forget());
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if (MOZ_UNLIKELY(aName == nsGkAtoms::style || aName == nsGkAtoms::link)) {
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nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(newContent));
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if (ssle) {
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ssle->InitStyleLinkElement(false);
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ssle->SetEnableUpdates(false);
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}
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}
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if (!aAttributes) {
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return newContent;
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}
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SetHTMLElementAttributes(newContent, aName, aAttributes);
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} else {
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nsCOMPtr<dom::Element> newElement;
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if (isCustomElement) {
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NS_NewHTMLElement(getter_AddRefs(newElement), nodeInfo.forget(),
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aFromParser, (isValue.IsEmpty() ? nullptr : &isValue),
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definition);
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} else {
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newElement = aCreator(nodeInfo.forget(), aFromParser);
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}
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MOZ_ASSERT(newElement, "Element creation created null pointer.");
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newContent = newElement;
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aBuilder->HoldElement(newElement.forget());
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if (MOZ_UNLIKELY(aName == nsGkAtoms::style || aName == nsGkAtoms::link)) {
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nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(newContent));
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if (ssle) {
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ssle->InitStyleLinkElement(false);
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ssle->SetEnableUpdates(false);
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}
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} else if (MOZ_UNLIKELY(isKeygen)) {
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// Adapted from CNavDTD
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nsresult rv;
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nsCOMPtr<nsIFormProcessor> theFormProcessor =
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do_GetService(kFormProcessorCID, &rv);
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if (NS_FAILED(rv)) {
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return newContent;
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}
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nsTArray<nsString> theContent;
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nsAutoString theAttribute;
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(void) theFormProcessor->ProvideContent(NS_LITERAL_STRING("select"),
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theContent,
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theAttribute);
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newContent->SetAttr(kNameSpaceID_None,
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nsGkAtoms::moztype,
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nullptr,
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theAttribute,
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false);
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RefPtr<dom::NodeInfo> optionNodeInfo = aNodeInfoManager->GetNodeInfo(
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nsGkAtoms::option, nullptr, kNameSpaceID_XHTML, nsIDOMNode::ELEMENT_NODE);
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for (uint32_t i = 0; i < theContent.Length(); ++i) {
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RefPtr<dom::NodeInfo> ni = optionNodeInfo;
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nsCOMPtr<dom::Element> optionElt =
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NS_NewHTMLOptionElement(ni.forget(), aFromParser);
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RefPtr<nsTextNode> optionText = new nsTextNode(aNodeInfoManager);
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(void) optionText->SetText(theContent[i], false);
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optionElt->AppendChildTo(optionText, false);
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newContent->AppendChildTo(optionElt, false);
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}
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newContent->DoneAddingChildren(false);
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}
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if (!aAttributes) {
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return newContent;
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}
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SetHTMLElementAttributes(newContent, aName, aAttributes);
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}
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return newContent;
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}
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