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-rw-r--r--parser/html/nsHtml5TreeOperation.cpp1209
1 files changed, 1209 insertions, 0 deletions
diff --git a/parser/html/nsHtml5TreeOperation.cpp b/parser/html/nsHtml5TreeOperation.cpp
new file mode 100644
index 0000000000..ac12aec74e
--- /dev/null
+++ b/parser/html/nsHtml5TreeOperation.cpp
@@ -0,0 +1,1209 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 sw=2 et tw=78: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsHtml5TreeOperation.h"
+#include "mozAutoDocUpdate.h"
+#include "mozilla/CycleCollectedJSContext.h"
+#include "mozilla/Likely.h"
+#include "mozilla/dom/Comment.h"
+#include "mozilla/dom/CustomElementRegistry.h"
+#include "mozilla/dom/DocumentType.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/LinkStyle.h"
+#include "mozilla/dom/HTMLFormElement.h"
+#include "mozilla/dom/HTMLImageElement.h"
+#include "mozilla/dom/HTMLTemplateElement.h"
+#include "mozilla/dom/MutationObservers.h"
+#include "mozilla/dom/Text.h"
+#include "nsAttrName.h"
+#include "nsContentCreatorFunctions.h"
+#include "nsContentUtils.h"
+#include "nsDocElementCreatedNotificationRunner.h"
+#include "nsEscape.h"
+#include "nsHtml5AutoPauseUpdate.h"
+#include "nsHtml5DocumentMode.h"
+#include "nsHtml5HtmlAttributes.h"
+#include "nsHtml5SVGLoadDispatcher.h"
+#include "nsHtml5TreeBuilder.h"
+#include "nsIDTD.h"
+#include "nsIFormControl.h"
+#include "nsIMutationObserver.h"
+#include "nsINode.h"
+#include "nsIProtocolHandler.h"
+#include "nsIScriptElement.h"
+#include "nsISupportsImpl.h"
+#include "nsIURI.h"
+#include "nsNetUtil.h"
+#include "nsTextNode.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using mozilla::dom::Document;
+
+/**
+ * Helper class that opens a notification batch if the current doc
+ * is different from the executor doc.
+ */
+class MOZ_STACK_CLASS nsHtml5OtherDocUpdate {
+ public:
+ nsHtml5OtherDocUpdate(Document* aCurrentDoc, Document* aExecutorDoc) {
+ MOZ_ASSERT(aCurrentDoc, "Node has no doc?");
+ MOZ_ASSERT(aExecutorDoc, "Executor has no doc?");
+ if (MOZ_LIKELY(aCurrentDoc == aExecutorDoc)) {
+ mDocument = nullptr;
+ } else {
+ mDocument = aCurrentDoc;
+ aCurrentDoc->BeginUpdate();
+ }
+ }
+
+ ~nsHtml5OtherDocUpdate() {
+ if (MOZ_UNLIKELY(mDocument)) {
+ mDocument->EndUpdate();
+ }
+ }
+
+ private:
+ RefPtr<Document> mDocument;
+};
+
+nsHtml5TreeOperation::nsHtml5TreeOperation() : mOperation(uninitialized()) {
+ MOZ_COUNT_CTOR(nsHtml5TreeOperation);
+}
+
+nsHtml5TreeOperation::~nsHtml5TreeOperation() {
+ MOZ_COUNT_DTOR(nsHtml5TreeOperation);
+
+ struct TreeOperationMatcher {
+ void operator()(const opAppend& aOperation) {}
+
+ void operator()(const opDetach& aOperation) {}
+
+ void operator()(const opAppendChildrenToNewParent& aOperation) {}
+
+ void operator()(const opFosterParent& aOperation) {}
+
+ void operator()(const opAppendToDocument& aOperation) {}
+
+ void operator()(const opAddAttributes& aOperation) {
+ delete aOperation.mAttributes;
+ }
+
+ void operator()(const nsHtml5DocumentMode& aMode) {}
+
+ void operator()(const opCreateHTMLElement& aOperation) {
+ aOperation.mName->Release();
+ delete aOperation.mAttributes;
+ }
+
+ void operator()(const opCreateSVGElement& aOperation) {
+ aOperation.mName->Release();
+ delete aOperation.mAttributes;
+ }
+
+ void operator()(const opCreateMathMLElement& aOperation) {
+ aOperation.mName->Release();
+ delete aOperation.mAttributes;
+ }
+
+ void operator()(const opSetFormElement& aOperation) {}
+
+ void operator()(const opAppendText& aOperation) {
+ delete[] aOperation.mBuffer;
+ }
+
+ void operator()(const opFosterParentText& aOperation) {
+ delete[] aOperation.mBuffer;
+ }
+
+ void operator()(const opAppendComment& aOperation) {
+ delete[] aOperation.mBuffer;
+ }
+
+ void operator()(const opAppendCommentToDocument& aOperation) {
+ delete[] aOperation.mBuffer;
+ }
+
+ void operator()(const opAppendDoctypeToDocument& aOperation) {
+ aOperation.mName->Release();
+ delete aOperation.mStringPair;
+ }
+
+ void operator()(const opGetDocumentFragmentForTemplate& aOperation) {}
+
+ void operator()(const opGetFosterParent& aOperation) {}
+
+ void operator()(const opMarkAsBroken& aOperation) {}
+
+ void operator()(const opRunScript& aOperation) {}
+
+ void operator()(const opRunScriptAsyncDefer& aOperation) {}
+
+ void operator()(const opPreventScriptExecution& aOperation) {}
+
+ void operator()(const opDoneAddingChildren& aOperation) {}
+
+ void operator()(const opDoneCreatingElement& aOperation) {}
+
+ void operator()(const opUpdateCharsetSource& aOperation) {}
+
+ void operator()(const opCharsetSwitchTo& aOperation) {}
+
+ void operator()(const opUpdateStyleSheet& aOperation) {}
+
+ void operator()(const opProcessOfflineManifest& aOperation) {
+ free(aOperation.mUrl);
+ }
+
+ void operator()(const opMarkMalformedIfScript& aOperation) {}
+
+ void operator()(const opStreamEnded& aOperation) {}
+
+ void operator()(const opSetStyleLineNumber& aOperation) {}
+
+ void operator()(const opSetScriptLineNumberAndFreeze& aOperation) {}
+
+ void operator()(const opSvgLoad& aOperation) {}
+
+ void operator()(const opMaybeComplainAboutCharset& aOperation) {}
+
+ void operator()(const opMaybeComplainAboutDeepTree& aOperation) {}
+
+ void operator()(const opAddClass& aOperation) {}
+
+ void operator()(const opAddViewSourceHref& aOperation) {
+ delete[] aOperation.mBuffer;
+ }
+
+ void operator()(const opAddViewSourceBase& aOperation) {
+ delete[] aOperation.mBuffer;
+ }
+
+ void operator()(const opAddErrorType& aOperation) {
+ if (aOperation.mName) {
+ aOperation.mName->Release();
+ }
+ if (aOperation.mOther) {
+ aOperation.mOther->Release();
+ }
+ }
+
+ void operator()(const opAddLineNumberId& aOperation) {}
+
+ void operator()(const opStartLayout& aOperation) {}
+
+ void operator()(const opEnableEncodingMenu& aOperation) {}
+
+ void operator()(const uninitialized& aOperation) {
+ NS_WARNING("Uninitialized tree op.");
+ }
+ };
+
+ mOperation.match(TreeOperationMatcher());
+}
+
+nsresult nsHtml5TreeOperation::AppendTextToTextNode(
+ const char16_t* aBuffer, uint32_t aLength, dom::Text* aTextNode,
+ nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aTextNode, "Got null text node.");
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ uint32_t oldLength = aTextNode->TextLength();
+ CharacterDataChangeInfo info = {true, oldLength, oldLength, aLength};
+ MutationObservers::NotifyCharacterDataWillChange(aTextNode, info);
+
+ nsresult rv = aTextNode->AppendText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ MutationObservers::NotifyCharacterDataChanged(aTextNode, info);
+ return rv;
+}
+
+nsresult nsHtml5TreeOperation::AppendText(const char16_t* aBuffer,
+ uint32_t aLength, nsIContent* aParent,
+ nsHtml5DocumentBuilder* aBuilder) {
+ nsresult rv = NS_OK;
+ nsIContent* lastChild = aParent->GetLastChild();
+ if (lastChild && lastChild->IsText()) {
+ nsHtml5OtherDocUpdate update(aParent->OwnerDoc(), aBuilder->GetDocument());
+ return AppendTextToTextNode(aBuffer, aLength, lastChild->GetAsText(),
+ aBuilder);
+ }
+
+ nsNodeInfoManager* nodeInfoManager = aParent->OwnerDoc()->NodeInfoManager();
+ RefPtr<nsTextNode> text = new (nodeInfoManager) nsTextNode(nodeInfoManager);
+ NS_ASSERTION(text, "Infallible malloc failed?");
+ rv = text->SetText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return Append(text, aParent, aBuilder);
+}
+
+nsresult nsHtml5TreeOperation::Append(nsIContent* aNode, nsIContent* aParent,
+ nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ ErrorResult rv;
+ nsHtml5OtherDocUpdate update(aParent->OwnerDoc(), aBuilder->GetDocument());
+ aParent->AppendChildTo(aNode, false, rv);
+ if (!rv.Failed()) {
+ aNode->SetParserHasNotified();
+ MutationObservers::NotifyContentAppended(aParent, aNode);
+ }
+ return rv.StealNSResult();
+}
+
+nsresult nsHtml5TreeOperation::Append(nsIContent* aNode, nsIContent* aParent,
+ mozilla::dom::FromParser aFromParser,
+ nsHtml5DocumentBuilder* aBuilder) {
+ Maybe<nsHtml5AutoPauseUpdate> autoPause;
+ Maybe<dom::AutoCEReaction> autoCEReaction;
+ dom::DocGroup* docGroup = aParent->OwnerDoc()->GetDocGroup();
+ if (docGroup && aFromParser != mozilla::dom::FROM_PARSER_FRAGMENT) {
+ autoCEReaction.emplace(docGroup->CustomElementReactionsStack(), nullptr);
+ }
+ nsresult rv = Append(aNode, aParent, aBuilder);
+ // Pause the parser only when there are reactions to be invoked to avoid
+ // pausing parsing too aggressive.
+ if (autoCEReaction.isSome() && docGroup &&
+ docGroup->CustomElementReactionsStack()
+ ->IsElementQueuePushedForCurrentRecursionDepth()) {
+ autoPause.emplace(aBuilder);
+ }
+ return rv;
+}
+
+nsresult nsHtml5TreeOperation::AppendToDocument(
+ nsIContent* aNode, nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->GetDocument() == aNode->OwnerDoc());
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+
+ ErrorResult rv;
+ Document* doc = aBuilder->GetDocument();
+ doc->AppendChildTo(aNode, false, rv);
+ if (rv.ErrorCodeIs(NS_ERROR_DOM_HIERARCHY_REQUEST_ERR)) {
+ aNode->SetParserHasNotified();
+ return NS_OK;
+ }
+ if (rv.Failed()) {
+ return rv.StealNSResult();
+ }
+
+ aNode->SetParserHasNotified();
+ MutationObservers::NotifyContentInserted(doc, aNode);
+
+ NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
+ "Someone forgot to block scripts");
+ if (aNode->IsElement()) {
+ nsContentUtils::AddScriptRunner(
+ new nsDocElementCreatedNotificationRunner(doc));
+ }
+ return NS_OK;
+}
+
+static bool IsElementOrTemplateContent(nsINode* aNode) {
+ if (aNode) {
+ if (aNode->IsElement()) {
+ return true;
+ }
+ if (aNode->IsDocumentFragment()) {
+ // Check if the node is a template content.
+ nsIContent* fragHost = aNode->AsDocumentFragment()->GetHost();
+ if (fragHost && fragHost->IsTemplateElement()) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+void nsHtml5TreeOperation::Detach(nsIContent* aNode,
+ nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ nsCOMPtr<nsINode> parent = aNode->GetParentNode();
+ if (parent) {
+ nsHtml5OtherDocUpdate update(parent->OwnerDoc(), aBuilder->GetDocument());
+ parent->RemoveChildNode(aNode, true);
+ }
+}
+
+nsresult nsHtml5TreeOperation::AppendChildrenToNewParent(
+ nsIContent* aNode, nsIContent* aParent, nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ nsHtml5OtherDocUpdate update(aParent->OwnerDoc(), aBuilder->GetDocument());
+
+ bool didAppend = false;
+ while (aNode->HasChildren()) {
+ nsCOMPtr<nsIContent> child = aNode->GetFirstChild();
+ aNode->RemoveChildNode(child, true);
+
+ ErrorResult rv;
+ aParent->AppendChildTo(child, false, rv);
+ if (rv.Failed()) {
+ return rv.StealNSResult();
+ }
+ didAppend = true;
+ }
+ if (didAppend) {
+ MutationObservers::NotifyContentAppended(aParent, aParent->GetLastChild());
+ }
+ return NS_OK;
+}
+
+nsresult nsHtml5TreeOperation::FosterParent(nsIContent* aNode,
+ nsIContent* aParent,
+ nsIContent* aTable,
+ nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ nsIContent* foster = aTable->GetParent();
+
+ if (IsElementOrTemplateContent(foster)) {
+ nsHtml5OtherDocUpdate update(foster->OwnerDoc(), aBuilder->GetDocument());
+
+ ErrorResult rv;
+ foster->InsertChildBefore(aNode, aTable, false, rv);
+ if (rv.Failed()) {
+ return rv.StealNSResult();
+ }
+
+ MutationObservers::NotifyContentInserted(foster, aNode);
+ return NS_OK;
+ }
+
+ return Append(aNode, aParent, aBuilder);
+}
+
+nsresult nsHtml5TreeOperation::AddAttributes(nsIContent* aNode,
+ nsHtml5HtmlAttributes* aAttributes,
+ nsHtml5DocumentBuilder* aBuilder) {
+ dom::Element* node = aNode->AsElement();
+ nsHtml5OtherDocUpdate update(node->OwnerDoc(), aBuilder->GetDocument());
+
+ int32_t len = aAttributes->getLength();
+ for (int32_t i = len; i > 0;) {
+ --i;
+ nsAtom* localName = aAttributes->getLocalNameNoBoundsCheck(i);
+ int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
+ if (!node->HasAttr(nsuri, localName)) {
+ nsString value; // Not Auto, because using it to hold nsStringBuffer*
+ aAttributes->getValueNoBoundsCheck(i).ToString(value);
+ node->SetAttr(nsuri, localName, aAttributes->getPrefixNoBoundsCheck(i),
+ value, true);
+ // XXX what to do with nsresult?
+ }
+ }
+ return NS_OK;
+}
+
+void nsHtml5TreeOperation::SetHTMLElementAttributes(
+ dom::Element* aElement, nsAtom* aName, nsHtml5HtmlAttributes* aAttributes) {
+ int32_t len = aAttributes->getLength();
+ for (int32_t i = 0; i < len; i++) {
+ nsHtml5String val = aAttributes->getValueNoBoundsCheck(i);
+ nsAtom* klass = val.MaybeAsAtom();
+ if (klass) {
+ aElement->SetSingleClassFromParser(klass);
+ } else {
+ nsAtom* localName = aAttributes->getLocalNameNoBoundsCheck(i);
+ nsAtom* prefix = aAttributes->getPrefixNoBoundsCheck(i);
+ int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
+
+ nsString value; // Not Auto, because using it to hold nsStringBuffer*
+ val.ToString(value);
+ if (nsGkAtoms::a == aName && nsGkAtoms::name == localName) {
+ // This is an HTML5-incompliant Geckoism.
+ // Remove when fixing bug 582361
+ NS_ConvertUTF16toUTF8 cname(value);
+ NS_ConvertUTF8toUTF16 uv(nsUnescape(cname.BeginWriting()));
+ aElement->SetAttr(nsuri, localName, prefix, uv, false);
+ } else {
+ aElement->SetAttr(nsuri, localName, prefix, value, false);
+ }
+ }
+ }
+}
+
+nsIContent* nsHtml5TreeOperation::CreateHTMLElement(
+ nsAtom* aName, nsHtml5HtmlAttributes* aAttributes,
+ mozilla::dom::FromParser aFromParser, nsNodeInfoManager* aNodeInfoManager,
+ nsHtml5DocumentBuilder* aBuilder,
+ mozilla::dom::HTMLContentCreatorFunction aCreator) {
+ RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
+ aName, nullptr, kNameSpaceID_XHTML, nsINode::ELEMENT_NODE);
+ NS_ASSERTION(nodeInfo, "Got null nodeinfo.");
+
+ dom::Element* newContent = nullptr;
+ Document* document = nodeInfo->GetDocument();
+ bool willExecuteScript = false;
+ bool isCustomElement = false;
+ RefPtr<nsAtom> isAtom;
+ dom::CustomElementDefinition* definition = nullptr;
+
+ if (aAttributes) {
+ nsHtml5String is = aAttributes->getValue(nsHtml5AttributeName::ATTR_IS);
+ if (is) {
+ nsAutoString isValue;
+ is.ToString(isValue);
+ isAtom = NS_Atomize(isValue);
+ }
+ }
+
+ isCustomElement = (aCreator == NS_NewCustomElement || isAtom);
+ if (isCustomElement && aFromParser != dom::FROM_PARSER_FRAGMENT) {
+ RefPtr<nsAtom> tagAtom = nodeInfo->NameAtom();
+ RefPtr<nsAtom> typeAtom =
+ (aCreator == NS_NewCustomElement) ? tagAtom : isAtom;
+
+ MOZ_ASSERT(nodeInfo->NameAtom()->Equals(nodeInfo->LocalName()));
+ definition = nsContentUtils::LookupCustomElementDefinition(
+ document, nodeInfo->NameAtom(), nodeInfo->NamespaceID(), typeAtom);
+
+ if (definition) {
+ willExecuteScript = true;
+ }
+ }
+
+ if (willExecuteScript) { // This will cause custom element constructors to
+ // run
+ mozilla::dom::AutoSetThrowOnDynamicMarkupInsertionCounter
+ throwOnDynamicMarkupInsertionCounter(document);
+ nsHtml5AutoPauseUpdate autoPauseContentUpdate(aBuilder);
+ { nsAutoMicroTask mt; }
+ dom::AutoCEReaction autoCEReaction(
+ document->GetDocGroup()->CustomElementReactionsStack(), nullptr);
+
+ nsCOMPtr<dom::Element> newElement;
+ NS_NewHTMLElement(getter_AddRefs(newElement), nodeInfo.forget(),
+ aFromParser, isAtom, definition);
+
+ MOZ_ASSERT(newElement, "Element creation created null pointer.");
+ newContent = newElement;
+ aBuilder->HoldElement(newElement.forget());
+
+ if (MOZ_UNLIKELY(aName == nsGkAtoms::style || aName == nsGkAtoms::link)) {
+ if (auto* linkStyle = dom::LinkStyle::FromNode(*newContent)) {
+ linkStyle->SetEnableUpdates(false);
+ }
+ }
+
+ if (!aAttributes) {
+ return newContent;
+ }
+
+ SetHTMLElementAttributes(newContent, aName, aAttributes);
+ } else {
+ nsCOMPtr<dom::Element> newElement;
+
+ if (isCustomElement) {
+ NS_NewHTMLElement(getter_AddRefs(newElement), nodeInfo.forget(),
+ aFromParser, isAtom, definition);
+ } else {
+ newElement = aCreator(nodeInfo.forget(), aFromParser);
+ }
+
+ MOZ_ASSERT(newElement, "Element creation created null pointer.");
+
+ newContent = newElement;
+ aBuilder->HoldElement(newElement.forget());
+
+ if (MOZ_UNLIKELY(aName == nsGkAtoms::style || aName == nsGkAtoms::link)) {
+ if (auto* linkStyle = dom::LinkStyle::FromNode(*newContent)) {
+ linkStyle->SetEnableUpdates(false);
+ }
+ }
+
+ if (!aAttributes) {
+ return newContent;
+ }
+
+ SetHTMLElementAttributes(newContent, aName, aAttributes);
+ }
+
+ return newContent;
+}
+
+nsIContent* nsHtml5TreeOperation::CreateSVGElement(
+ nsAtom* aName, nsHtml5HtmlAttributes* aAttributes,
+ mozilla::dom::FromParser aFromParser, nsNodeInfoManager* aNodeInfoManager,
+ nsHtml5DocumentBuilder* aBuilder,
+ mozilla::dom::SVGContentCreatorFunction aCreator) {
+ nsCOMPtr<nsIContent> newElement;
+ if (MOZ_LIKELY(aNodeInfoManager->SVGEnabled())) {
+ RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
+ aName, nullptr, kNameSpaceID_SVG, nsINode::ELEMENT_NODE);
+ MOZ_ASSERT(nodeInfo, "Got null nodeinfo.");
+
+ mozilla::DebugOnly<nsresult> rv =
+ aCreator(getter_AddRefs(newElement), nodeInfo.forget(), aFromParser);
+ MOZ_ASSERT(NS_SUCCEEDED(rv) && newElement);
+ } else {
+ RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
+ aName, nullptr, kNameSpaceID_disabled_SVG, nsINode::ELEMENT_NODE);
+ MOZ_ASSERT(nodeInfo, "Got null nodeinfo.");
+
+ // The mismatch between NS_NewXMLElement and SVGContentCreatorFunction
+ // argument types is annoying.
+ nsCOMPtr<dom::Element> xmlElement;
+ mozilla::DebugOnly<nsresult> rv =
+ NS_NewXMLElement(getter_AddRefs(xmlElement), nodeInfo.forget());
+ MOZ_ASSERT(NS_SUCCEEDED(rv) && xmlElement);
+ newElement = xmlElement;
+ }
+
+ dom::Element* newContent = newElement->AsElement();
+ aBuilder->HoldElement(newElement.forget());
+
+ if (MOZ_UNLIKELY(aName == nsGkAtoms::style)) {
+ if (auto* linkStyle = dom::LinkStyle::FromNode(*newContent)) {
+ linkStyle->SetEnableUpdates(false);
+ }
+ }
+
+ if (!aAttributes) {
+ return newContent;
+ }
+
+ int32_t len = aAttributes->getLength();
+ for (int32_t i = 0; i < len; i++) {
+ nsHtml5String val = aAttributes->getValueNoBoundsCheck(i);
+ nsAtom* klass = val.MaybeAsAtom();
+ if (klass) {
+ newContent->SetSingleClassFromParser(klass);
+ } else {
+ nsAtom* localName = aAttributes->getLocalNameNoBoundsCheck(i);
+ nsAtom* prefix = aAttributes->getPrefixNoBoundsCheck(i);
+ int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
+
+ nsString value; // Not Auto, because using it to hold nsStringBuffer*
+ val.ToString(value);
+ newContent->SetAttr(nsuri, localName, prefix, value, false);
+ }
+ }
+ return newContent;
+}
+
+nsIContent* nsHtml5TreeOperation::CreateMathMLElement(
+ nsAtom* aName, nsHtml5HtmlAttributes* aAttributes,
+ nsNodeInfoManager* aNodeInfoManager, nsHtml5DocumentBuilder* aBuilder) {
+ nsCOMPtr<dom::Element> newElement;
+ if (MOZ_LIKELY(aNodeInfoManager->MathMLEnabled())) {
+ RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
+ aName, nullptr, kNameSpaceID_MathML, nsINode::ELEMENT_NODE);
+ NS_ASSERTION(nodeInfo, "Got null nodeinfo.");
+
+ mozilla::DebugOnly<nsresult> rv =
+ NS_NewMathMLElement(getter_AddRefs(newElement), nodeInfo.forget());
+ MOZ_ASSERT(NS_SUCCEEDED(rv) && newElement);
+ } else {
+ RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
+ aName, nullptr, kNameSpaceID_disabled_MathML, nsINode::ELEMENT_NODE);
+ NS_ASSERTION(nodeInfo, "Got null nodeinfo.");
+
+ mozilla::DebugOnly<nsresult> rv =
+ NS_NewXMLElement(getter_AddRefs(newElement), nodeInfo.forget());
+ MOZ_ASSERT(NS_SUCCEEDED(rv) && newElement);
+ }
+
+ dom::Element* newContent = newElement;
+ aBuilder->HoldElement(newElement.forget());
+
+ if (!aAttributes) {
+ return newContent;
+ }
+
+ int32_t len = aAttributes->getLength();
+ for (int32_t i = 0; i < len; i++) {
+ nsHtml5String val = aAttributes->getValueNoBoundsCheck(i);
+ nsAtom* klass = val.MaybeAsAtom();
+ if (klass) {
+ newContent->SetSingleClassFromParser(klass);
+ } else {
+ nsAtom* localName = aAttributes->getLocalNameNoBoundsCheck(i);
+ nsAtom* prefix = aAttributes->getPrefixNoBoundsCheck(i);
+ int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
+
+ nsString value; // Not Auto, because using it to hold nsStringBuffer*
+ val.ToString(value);
+ newContent->SetAttr(nsuri, localName, prefix, value, false);
+ }
+ }
+ return newContent;
+}
+
+void nsHtml5TreeOperation::SetFormElement(nsIContent* aNode,
+ nsIContent* aParent) {
+ RefPtr<dom::HTMLFormElement> formElement =
+ dom::HTMLFormElement::FromNodeOrNull(aParent);
+ NS_ASSERTION(formElement,
+ "The form element doesn't implement HTMLFormElement.");
+ nsCOMPtr<nsIFormControl> formControl(do_QueryInterface(aNode));
+ if (formControl &&
+ formControl->ControlType() !=
+ FormControlType::FormAssociatedCustomElement &&
+ !aNode->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::form)) {
+ formControl->SetForm(formElement);
+ } else if (HTMLImageElement* domImageElement =
+ dom::HTMLImageElement::FromNodeOrNull(aNode)) {
+ domImageElement->SetForm(formElement);
+ }
+}
+
+nsresult nsHtml5TreeOperation::FosterParentText(
+ nsIContent* aStackParent, char16_t* aBuffer, uint32_t aLength,
+ nsIContent* aTable, nsHtml5DocumentBuilder* aBuilder) {
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ nsresult rv = NS_OK;
+ nsIContent* foster = aTable->GetParent();
+
+ if (IsElementOrTemplateContent(foster)) {
+ nsHtml5OtherDocUpdate update(foster->OwnerDoc(), aBuilder->GetDocument());
+
+ nsIContent* previousSibling = aTable->GetPreviousSibling();
+ if (previousSibling && previousSibling->IsText()) {
+ return AppendTextToTextNode(aBuffer, aLength,
+ previousSibling->GetAsText(), aBuilder);
+ }
+
+ nsNodeInfoManager* nodeInfoManager =
+ aStackParent->OwnerDoc()->NodeInfoManager();
+ RefPtr<nsTextNode> text = new (nodeInfoManager) nsTextNode(nodeInfoManager);
+ NS_ASSERTION(text, "Infallible malloc failed?");
+ rv = text->SetText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ ErrorResult error;
+ foster->InsertChildBefore(text, aTable, false, error);
+ if (error.Failed()) {
+ return error.StealNSResult();
+ }
+
+ MutationObservers::NotifyContentInserted(foster, text);
+ return rv;
+ }
+
+ return AppendText(aBuffer, aLength, aStackParent, aBuilder);
+}
+
+nsresult nsHtml5TreeOperation::AppendComment(nsIContent* aParent,
+ char16_t* aBuffer, int32_t aLength,
+ nsHtml5DocumentBuilder* aBuilder) {
+ nsNodeInfoManager* nodeInfoManager = aParent->OwnerDoc()->NodeInfoManager();
+ RefPtr<dom::Comment> comment =
+ new (nodeInfoManager) dom::Comment(nodeInfoManager);
+ NS_ASSERTION(comment, "Infallible malloc failed?");
+ nsresult rv = comment->SetText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return Append(comment, aParent, aBuilder);
+}
+
+nsresult nsHtml5TreeOperation::AppendCommentToDocument(
+ char16_t* aBuffer, int32_t aLength, nsHtml5DocumentBuilder* aBuilder) {
+ RefPtr<dom::Comment> comment = new (aBuilder->GetNodeInfoManager())
+ dom::Comment(aBuilder->GetNodeInfoManager());
+ NS_ASSERTION(comment, "Infallible malloc failed?");
+ nsresult rv = comment->SetText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return AppendToDocument(comment, aBuilder);
+}
+
+nsresult nsHtml5TreeOperation::AppendDoctypeToDocument(
+ nsAtom* aName, const nsAString& aPublicId, const nsAString& aSystemId,
+ nsHtml5DocumentBuilder* aBuilder) {
+ // Adapted from nsXMLContentSink
+ // Create a new doctype node
+ RefPtr<dom::DocumentType> docType =
+ NS_NewDOMDocumentType(aBuilder->GetNodeInfoManager(), aName, aPublicId,
+ aSystemId, VoidString());
+ return AppendToDocument(docType, aBuilder);
+}
+
+nsIContent* nsHtml5TreeOperation::GetDocumentFragmentForTemplate(
+ nsIContent* aNode) {
+ dom::HTMLTemplateElement* tempElem =
+ static_cast<dom::HTMLTemplateElement*>(aNode);
+ RefPtr<dom::DocumentFragment> frag = tempElem->Content();
+ return frag;
+}
+
+nsIContent* nsHtml5TreeOperation::GetFosterParent(nsIContent* aTable,
+ nsIContent* aStackParent) {
+ nsIContent* tableParent = aTable->GetParent();
+ return IsElementOrTemplateContent(tableParent) ? tableParent : aStackParent;
+}
+
+void nsHtml5TreeOperation::PreventScriptExecution(nsIContent* aNode) {
+ nsCOMPtr<nsIScriptElement> sele = do_QueryInterface(aNode);
+ if (sele) {
+ sele->PreventExecution();
+ } else {
+ MOZ_ASSERT(nsNameSpaceManager::GetInstance()->mSVGDisabled,
+ "Node didn't QI to script, but SVG wasn't disabled.");
+ }
+}
+
+void nsHtml5TreeOperation::DoneAddingChildren(nsIContent* aNode) {
+ aNode->DoneAddingChildren(aNode->HasParserNotified());
+}
+
+void nsHtml5TreeOperation::DoneCreatingElement(nsIContent* aNode) {
+ aNode->DoneCreatingElement();
+}
+
+void nsHtml5TreeOperation::SvgLoad(nsIContent* aNode) {
+ nsCOMPtr<nsIRunnable> event = new nsHtml5SVGLoadDispatcher(aNode);
+ if (NS_FAILED(
+ aNode->OwnerDoc()->Dispatch(TaskCategory::Network, event.forget()))) {
+ NS_WARNING("failed to dispatch svg load dispatcher");
+ }
+}
+
+void nsHtml5TreeOperation::MarkMalformedIfScript(nsIContent* aNode) {
+ nsCOMPtr<nsIScriptElement> sele = do_QueryInterface(aNode);
+ if (sele) {
+ // Make sure to serialize this script correctly, for nice round tripping.
+ sele->SetIsMalformed();
+ }
+}
+
+nsresult nsHtml5TreeOperation::Perform(nsHtml5TreeOpExecutor* aBuilder,
+ nsIContent** aScriptElement,
+ bool* aInterrupted, bool* aStreamEnded) {
+ struct TreeOperationMatcher {
+ TreeOperationMatcher(nsHtml5TreeOpExecutor* aBuilder,
+ nsIContent** aScriptElement, bool* aInterrupted,
+ bool* aStreamEnded)
+ : mBuilder(aBuilder),
+ mScriptElement(aScriptElement),
+ mInterrupted(aInterrupted),
+ mStreamEnded(aStreamEnded) {}
+
+ nsHtml5TreeOpExecutor* mBuilder;
+ nsIContent** mScriptElement;
+ bool* mInterrupted;
+ bool* mStreamEnded;
+
+ nsresult operator()(const opAppend& aOperation) {
+ return Append(*(aOperation.mChild), *(aOperation.mParent),
+ aOperation.mFromNetwork, mBuilder);
+ }
+
+ nsresult operator()(const opDetach& aOperation) {
+ Detach(*(aOperation.mElement), mBuilder);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opAppendChildrenToNewParent& aOperation) {
+ nsCOMPtr<nsIContent> node = *(aOperation.mOldParent);
+ nsIContent* parent = *(aOperation.mNewParent);
+ return AppendChildrenToNewParent(node, parent, mBuilder);
+ }
+
+ nsresult operator()(const opFosterParent& aOperation) {
+ nsIContent* node = *(aOperation.mChild);
+ nsIContent* parent = *(aOperation.mStackParent);
+ nsIContent* table = *(aOperation.mTable);
+ return FosterParent(node, parent, table, mBuilder);
+ }
+
+ nsresult operator()(const opAppendToDocument& aOperation) {
+ nsresult rv = AppendToDocument(*(aOperation.mContent), mBuilder);
+ mBuilder->PauseDocUpdate(mInterrupted);
+ return rv;
+ }
+
+ nsresult operator()(const opAddAttributes& aOperation) {
+ nsIContent* node = *(aOperation.mElement);
+ nsHtml5HtmlAttributes* attributes = aOperation.mAttributes;
+ return AddAttributes(node, attributes, mBuilder);
+ }
+
+ nsresult operator()(const nsHtml5DocumentMode& aMode) {
+ mBuilder->SetDocumentMode(aMode);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opCreateHTMLElement& aOperation) {
+ nsIContent** target = aOperation.mContent;
+ mozilla::dom::HTMLContentCreatorFunction creator = aOperation.mCreator;
+ nsAtom* name = aOperation.mName;
+ nsHtml5HtmlAttributes* attributes = aOperation.mAttributes;
+ nsIContent* intendedParent =
+ aOperation.mIntendedParent ? *(aOperation.mIntendedParent) : nullptr;
+
+ // intendedParent == nullptr is a special case where the
+ // intended parent is the document.
+ nsNodeInfoManager* nodeInfoManager =
+ intendedParent ? intendedParent->OwnerDoc()->NodeInfoManager()
+ : mBuilder->GetNodeInfoManager();
+
+ *target = CreateHTMLElement(name, attributes, aOperation.mFromNetwork,
+ nodeInfoManager, mBuilder, creator);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opCreateSVGElement& aOperation) {
+ nsIContent** target = aOperation.mContent;
+ mozilla::dom::SVGContentCreatorFunction creator = aOperation.mCreator;
+ nsAtom* name = aOperation.mName;
+ nsHtml5HtmlAttributes* attributes = aOperation.mAttributes;
+ nsIContent* intendedParent =
+ aOperation.mIntendedParent ? *(aOperation.mIntendedParent) : nullptr;
+
+ // intendedParent == nullptr is a special case where the
+ // intended parent is the document.
+ nsNodeInfoManager* nodeInfoManager =
+ intendedParent ? intendedParent->OwnerDoc()->NodeInfoManager()
+ : mBuilder->GetNodeInfoManager();
+
+ *target = CreateSVGElement(name, attributes, aOperation.mFromNetwork,
+ nodeInfoManager, mBuilder, creator);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opCreateMathMLElement& aOperation) {
+ nsIContent** target = aOperation.mContent;
+ nsAtom* name = aOperation.mName;
+ nsHtml5HtmlAttributes* attributes = aOperation.mAttributes;
+ nsIContent* intendedParent =
+ aOperation.mIntendedParent ? *(aOperation.mIntendedParent) : nullptr;
+
+ // intendedParent == nullptr is a special case where the
+ // intended parent is the document.
+ nsNodeInfoManager* nodeInfoManager =
+ intendedParent ? intendedParent->OwnerDoc()->NodeInfoManager()
+ : mBuilder->GetNodeInfoManager();
+
+ *target =
+ CreateMathMLElement(name, attributes, nodeInfoManager, mBuilder);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opSetFormElement& aOperation) {
+ SetFormElement(*(aOperation.mContent), *(aOperation.mFormElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opAppendText& aOperation) {
+ nsIContent* parent = *aOperation.mParent;
+ char16_t* buffer = aOperation.mBuffer;
+ uint32_t length = aOperation.mLength;
+ return AppendText(buffer, length, parent, mBuilder);
+ }
+
+ nsresult operator()(const opFosterParentText& aOperation) {
+ nsIContent* stackParent = *aOperation.mStackParent;
+ char16_t* buffer = aOperation.mBuffer;
+ uint32_t length = aOperation.mLength;
+ nsIContent* table = *aOperation.mTable;
+ return FosterParentText(stackParent, buffer, length, table, mBuilder);
+ }
+
+ nsresult operator()(const opAppendComment& aOperation) {
+ nsIContent* parent = *aOperation.mParent;
+ char16_t* buffer = aOperation.mBuffer;
+ uint32_t length = aOperation.mLength;
+ return AppendComment(parent, buffer, length, mBuilder);
+ }
+
+ nsresult operator()(const opAppendCommentToDocument& aOperation) {
+ char16_t* buffer = aOperation.mBuffer;
+ int32_t length = aOperation.mLength;
+ return AppendCommentToDocument(buffer, length, mBuilder);
+ }
+
+ nsresult operator()(const opAppendDoctypeToDocument& aOperation) {
+ nsAtom* name = aOperation.mName;
+ nsHtml5TreeOperationStringPair* pair = aOperation.mStringPair;
+ nsString publicId;
+ nsString systemId;
+ pair->Get(publicId, systemId);
+ return AppendDoctypeToDocument(name, publicId, systemId, mBuilder);
+ }
+
+ nsresult operator()(const opGetDocumentFragmentForTemplate& aOperation) {
+ nsIContent* node = *(aOperation.mTemplate);
+ *(aOperation.mFragHandle) = GetDocumentFragmentForTemplate(node);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opGetFosterParent& aOperation) {
+ nsIContent* table = *(aOperation.mTable);
+ nsIContent* stackParent = *(aOperation.mStackParent);
+ nsIContent* fosterParent = GetFosterParent(table, stackParent);
+ *aOperation.mParentHandle = fosterParent;
+ return NS_OK;
+ }
+
+ nsresult operator()(const opMarkAsBroken& aOperation) {
+ return aOperation.mResult;
+ }
+
+ nsresult operator()(const opRunScript& aOperation) {
+ nsIContent* node = *(aOperation.mElement);
+ nsAHtml5TreeBuilderState* snapshot = aOperation.mBuilderState;
+ if (snapshot) {
+ mBuilder->InitializeDocWriteParserState(snapshot,
+ aOperation.mLineNumber);
+ }
+ *mScriptElement = node;
+ return NS_OK;
+ }
+
+ nsresult operator()(const opRunScriptAsyncDefer& aOperation) {
+ mBuilder->RunScript(*(aOperation.mElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opPreventScriptExecution& aOperation) {
+ PreventScriptExecution(*(aOperation.mElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opDoneAddingChildren& aOperation) {
+ nsIContent* node = *(aOperation.mElement);
+ node->DoneAddingChildren(node->HasParserNotified());
+ return NS_OK;
+ }
+
+ nsresult operator()(const opDoneCreatingElement& aOperation) {
+ DoneCreatingElement(*(aOperation.mElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opUpdateCharsetSource& aOperation) {
+ mBuilder->UpdateCharsetSource(aOperation.mCharsetSource);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opCharsetSwitchTo& aOperation) {
+ auto encoding = WrapNotNull(aOperation.mEncoding);
+ mBuilder->NeedsCharsetSwitchTo(encoding, aOperation.mCharsetSource,
+ (uint32_t)aOperation.mLineNumber);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opUpdateStyleSheet& aOperation) {
+ mBuilder->UpdateStyleSheet(*(aOperation.mElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opProcessOfflineManifest& aOperation) {
+ // TODO: remove this
+ return NS_OK;
+ }
+
+ nsresult operator()(const opMarkMalformedIfScript& aOperation) {
+ MarkMalformedIfScript(*(aOperation.mElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opStreamEnded& aOperation) {
+ *mStreamEnded = true;
+ return NS_OK;
+ }
+
+ nsresult operator()(const opSetStyleLineNumber& aOperation) {
+ nsIContent* node = *(aOperation.mContent);
+ if (auto* linkStyle = dom::LinkStyle::FromNode(*node)) {
+ linkStyle->SetLineNumber(aOperation.mLineNumber);
+ } else {
+ MOZ_ASSERT(nsNameSpaceManager::GetInstance()->mSVGDisabled,
+ "Node didn't QI to style, but SVG wasn't disabled.");
+ }
+ return NS_OK;
+ }
+
+ nsresult operator()(const opSetScriptLineNumberAndFreeze& aOperation) {
+ nsIContent* node = *(aOperation.mContent);
+ nsCOMPtr<nsIScriptElement> sele = do_QueryInterface(node);
+ if (sele) {
+ sele->SetScriptLineNumber(aOperation.mLineNumber);
+ sele->FreezeExecutionAttrs(node->OwnerDoc());
+ } else {
+ MOZ_ASSERT(nsNameSpaceManager::GetInstance()->mSVGDisabled,
+ "Node didn't QI to script, but SVG wasn't disabled.");
+ }
+ return NS_OK;
+ }
+
+ nsresult operator()(const opSvgLoad& aOperation) {
+ SvgLoad(*(aOperation.mElement));
+ return NS_OK;
+ }
+
+ nsresult operator()(const opMaybeComplainAboutCharset& aOperation) {
+ char* msgId = aOperation.mMsgId;
+ bool error = aOperation.mError;
+ int32_t lineNumber = aOperation.mLineNumber;
+ mBuilder->MaybeComplainAboutCharset(msgId, error, (uint32_t)lineNumber);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opMaybeComplainAboutDeepTree& aOperation) {
+ mBuilder->MaybeComplainAboutDeepTree((uint32_t)aOperation.mLineNumber);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opAddClass& aOperation) {
+ Element* element = (*(aOperation.mElement))->AsElement();
+ char16_t* str = aOperation.mClass;
+ nsDependentString depStr(str);
+ // See viewsource.css for the possible classes
+ nsAutoString klass;
+ element->GetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass);
+ if (!klass.IsEmpty()) {
+ klass.Append(' ');
+ klass.Append(depStr);
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass, true);
+ } else {
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, depStr, true);
+ }
+ return NS_OK;
+ }
+
+ nsresult operator()(const opAddViewSourceHref& aOperation) {
+ Element* element = (*aOperation.mElement)->AsElement();
+ char16_t* buffer = aOperation.mBuffer;
+ int32_t length = aOperation.mLength;
+ nsDependentString relative(buffer, length);
+
+ Document* doc = mBuilder->GetDocument();
+
+ auto encoding = doc->GetDocumentCharacterSet();
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = NS_NewURI(getter_AddRefs(uri), relative, encoding,
+ mBuilder->GetViewSourceBaseURI());
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+
+ // Reuse the fix for bug 467852
+ // URLs that execute script (e.g. "javascript:" URLs) should just be
+ // ignored. There's nothing reasonable we can do with them, and allowing
+ // them to execute in the context of the view-source window presents a
+ // security risk. Just return the empty string in this case.
+ bool openingExecutesScript = false;
+ rv = NS_URIChainHasFlags(uri,
+ nsIProtocolHandler::URI_OPENING_EXECUTES_SCRIPT,
+ &openingExecutesScript);
+ if (NS_FAILED(rv) || openingExecutesScript) {
+ return NS_OK;
+ }
+
+ nsAutoCString viewSourceUrl;
+
+ // URLs that return data (e.g. "http:" URLs) should be prefixed with
+ // "view-source:". URLs that don't return data should just be returned
+ // undecorated.
+ bool doesNotReturnData = false;
+ rv =
+ NS_URIChainHasFlags(uri, nsIProtocolHandler::URI_DOES_NOT_RETURN_DATA,
+ &doesNotReturnData);
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ if (!doesNotReturnData) {
+ viewSourceUrl.AssignLiteral("view-source:");
+ }
+
+ nsAutoCString spec;
+ rv = uri->GetSpec(spec);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ viewSourceUrl.Append(spec);
+
+ nsAutoString utf16;
+ CopyUTF8toUTF16(viewSourceUrl, utf16);
+
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::href, utf16, true);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opAddViewSourceBase& aOperation) {
+ nsDependentString baseUrl(aOperation.mBuffer, aOperation.mLength);
+ mBuilder->AddBase(baseUrl);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opAddErrorType& aOperation) {
+ Element* element = (*(aOperation.mElement))->AsElement();
+ char* msgId = aOperation.mMsgId;
+ nsAtom* atom = aOperation.mName;
+ nsAtom* otherAtom = aOperation.mOther;
+ // See viewsource.css for the possible classes in addition to "error".
+ nsAutoString klass;
+ element->GetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass);
+ if (!klass.IsEmpty()) {
+ klass.AppendLiteral(" error");
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass, true);
+ } else {
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, u"error"_ns,
+ true);
+ }
+
+ nsresult rv;
+ nsAutoString message;
+ if (otherAtom) {
+ rv = nsContentUtils::FormatLocalizedString(
+ message, nsContentUtils::eHTMLPARSER_PROPERTIES, msgId,
+ nsDependentAtomString(atom), nsDependentAtomString(otherAtom));
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ } else if (atom) {
+ rv = nsContentUtils::FormatLocalizedString(
+ message, nsContentUtils::eHTMLPARSER_PROPERTIES, msgId,
+ nsDependentAtomString(atom));
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ } else {
+ rv = nsContentUtils::GetLocalizedString(
+ nsContentUtils::eHTMLPARSER_PROPERTIES, msgId, message);
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ }
+
+ nsAutoString title;
+ element->GetAttr(kNameSpaceID_None, nsGkAtoms::title, title);
+ if (!title.IsEmpty()) {
+ title.Append('\n');
+ title.Append(message);
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::title, title, true);
+ } else {
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::title, message, true);
+ }
+ return rv;
+ }
+
+ nsresult operator()(const opAddLineNumberId& aOperation) {
+ Element* element = (*(aOperation.mElement))->AsElement();
+ int32_t lineNumber = aOperation.mLineNumber;
+ nsAutoString val(u"line"_ns);
+ val.AppendInt(lineNumber);
+ element->SetAttr(kNameSpaceID_None, nsGkAtoms::id, val, true);
+ return NS_OK;
+ }
+
+ nsresult operator()(const opStartLayout& aOperation) {
+ mBuilder->StartLayout(
+ mInterrupted); // this causes a notification flush anyway
+ return NS_OK;
+ }
+
+ nsresult operator()(const opEnableEncodingMenu& aOperation) {
+ Document* doc = mBuilder->GetDocument();
+ doc->EnableEncodingMenu();
+ return NS_OK;
+ }
+
+ nsresult operator()(const uninitialized& aOperation) {
+ MOZ_CRASH("uninitialized");
+ return NS_OK;
+ }
+ };
+
+ return mOperation.match(TreeOperationMatcher(aBuilder, aScriptElement,
+ aInterrupted, aStreamEnded));
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 17:30:18 +0000