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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /parser/html/nsHtml5TreeOperation.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'parser/html/nsHtml5TreeOperation.cpp')
-rw-r--r--parser/html/nsHtml5TreeOperation.cpp995
1 files changed, 995 insertions, 0 deletions
diff --git a/parser/html/nsHtml5TreeOperation.cpp b/parser/html/nsHtml5TreeOperation.cpp
new file mode 100644
index 000000000..af246a253
--- /dev/null
+++ b/parser/html/nsHtml5TreeOperation.cpp
@@ -0,0 +1,995 @@
+/* -*- 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 "nsContentUtils.h"
+#include "nsDocElementCreatedNotificationRunner.h"
+#include "nsNodeUtils.h"
+#include "nsAttrName.h"
+#include "nsHtml5TreeBuilder.h"
+#include "nsIDOMMutationEvent.h"
+#include "mozAutoDocUpdate.h"
+#include "nsBindingManager.h"
+#include "nsXBLBinding.h"
+#include "nsHtml5DocumentMode.h"
+#include "nsHtml5HtmlAttributes.h"
+#include "nsContentCreatorFunctions.h"
+#include "nsIScriptElement.h"
+#include "nsIDTD.h"
+#include "nsISupportsImpl.h"
+#include "nsIDOMHTMLFormElement.h"
+#include "nsIFormControl.h"
+#include "nsIStyleSheetLinkingElement.h"
+#include "nsIDOMDocumentType.h"
+#include "nsIObserverService.h"
+#include "mozilla/Services.h"
+#include "nsIMutationObserver.h"
+#include "nsIFormProcessor.h"
+#include "nsIServiceManager.h"
+#include "nsEscape.h"
+#include "mozilla/dom/Comment.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/HTMLImageElement.h"
+#include "mozilla/dom/HTMLTemplateElement.h"
+#include "nsHtml5SVGLoadDispatcher.h"
+#include "nsIURI.h"
+#include "nsIProtocolHandler.h"
+#include "nsNetUtil.h"
+#include "nsIHTMLDocument.h"
+#include "mozilla/Likely.h"
+#include "nsTextNode.h"
+
+using namespace mozilla;
+
+static NS_DEFINE_CID(kFormProcessorCID, NS_FORMPROCESSOR_CID);
+
+/**
+ * Helper class that opens a notification batch if the current doc
+ * is different from the executor doc.
+ */
+class MOZ_STACK_CLASS nsHtml5OtherDocUpdate {
+ public:
+ nsHtml5OtherDocUpdate(nsIDocument* aCurrentDoc, nsIDocument* aExecutorDoc)
+ {
+ NS_PRECONDITION(aCurrentDoc, "Node has no doc?");
+ NS_PRECONDITION(aExecutorDoc, "Executor has no doc?");
+ if (MOZ_LIKELY(aCurrentDoc == aExecutorDoc)) {
+ mDocument = nullptr;
+ } else {
+ mDocument = aCurrentDoc;
+ aCurrentDoc->BeginUpdate(UPDATE_CONTENT_MODEL);
+ }
+ }
+
+ ~nsHtml5OtherDocUpdate()
+ {
+ if (MOZ_UNLIKELY(mDocument)) {
+ mDocument->EndUpdate(UPDATE_CONTENT_MODEL);
+ }
+ }
+ private:
+ nsCOMPtr<nsIDocument> mDocument;
+};
+
+nsHtml5TreeOperation::nsHtml5TreeOperation()
+ : mOpCode(eTreeOpUninitialized)
+{
+ MOZ_COUNT_CTOR(nsHtml5TreeOperation);
+}
+
+nsHtml5TreeOperation::~nsHtml5TreeOperation()
+{
+ MOZ_COUNT_DTOR(nsHtml5TreeOperation);
+ NS_ASSERTION(mOpCode != eTreeOpUninitialized, "Uninitialized tree op.");
+ switch(mOpCode) {
+ case eTreeOpAddAttributes:
+ delete mTwo.attributes;
+ break;
+ case eTreeOpCreateElementNetwork:
+ case eTreeOpCreateElementNotNetwork:
+ delete mThree.attributes;
+ break;
+ case eTreeOpAppendDoctypeToDocument:
+ delete mTwo.stringPair;
+ break;
+ case eTreeOpFosterParentText:
+ case eTreeOpAppendText:
+ case eTreeOpAppendComment:
+ case eTreeOpAppendCommentToDocument:
+ case eTreeOpAddViewSourceHref:
+ case eTreeOpAddViewSourceBase:
+ delete[] mTwo.unicharPtr;
+ break;
+ case eTreeOpSetDocumentCharset:
+ case eTreeOpNeedsCharsetSwitchTo:
+ delete[] mOne.charPtr;
+ break;
+ case eTreeOpProcessOfflineManifest:
+ free(mOne.unicharPtr);
+ break;
+ default: // keep the compiler happy
+ break;
+ }
+}
+
+nsresult
+nsHtml5TreeOperation::AppendTextToTextNode(const char16_t* aBuffer,
+ uint32_t aLength,
+ nsIContent* aTextNode,
+ nsHtml5DocumentBuilder* aBuilder)
+{
+ NS_PRECONDITION(aTextNode, "Got null text node.");
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ uint32_t oldLength = aTextNode->TextLength();
+ CharacterDataChangeInfo info = {
+ true,
+ oldLength,
+ oldLength,
+ aLength
+ };
+ nsNodeUtils::CharacterDataWillChange(aTextNode, &info);
+
+ nsresult rv = aTextNode->AppendText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsNodeUtils::CharacterDataChanged(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->IsNodeOfType(nsINode::eTEXT)) {
+ nsHtml5OtherDocUpdate update(aParent->OwnerDoc(),
+ aBuilder->GetDocument());
+ return AppendTextToTextNode(aBuffer,
+ aLength,
+ lastChild,
+ aBuilder);
+ }
+
+ nsNodeInfoManager* nodeInfoManager = aParent->OwnerDoc()->NodeInfoManager();
+ RefPtr<nsTextNode> text = new 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());
+ nsresult rv = NS_OK;
+ nsHtml5OtherDocUpdate update(aParent->OwnerDoc(),
+ aBuilder->GetDocument());
+ uint32_t childCount = aParent->GetChildCount();
+ rv = aParent->AppendChildTo(aNode, false);
+ if (NS_SUCCEEDED(rv)) {
+ aNode->SetParserHasNotified();
+ nsNodeUtils::ContentAppended(aParent, aNode, childCount);
+ }
+ return rv;
+}
+
+nsresult
+nsHtml5TreeOperation::AppendToDocument(nsIContent* aNode,
+ nsHtml5DocumentBuilder* aBuilder)
+{
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->GetDocument() == aNode->OwnerDoc());
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ nsresult rv = NS_OK;
+
+ nsIDocument* doc = aBuilder->GetDocument();
+ uint32_t childCount = doc->GetChildCount();
+ rv = doc->AppendChildTo(aNode, false);
+ if (rv == NS_ERROR_DOM_HIERARCHY_REQUEST_ERR) {
+ aNode->SetParserHasNotified();
+ return NS_OK;
+ }
+ NS_ENSURE_SUCCESS(rv, rv);
+ aNode->SetParserHasNotified();
+ nsNodeUtils::ContentInserted(doc, aNode, childCount);
+
+ NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
+ "Someone forgot to block scripts");
+ if (aNode->IsElement()) {
+ nsContentUtils::AddScriptRunner(
+ new nsDocElementCreatedNotificationRunner(doc));
+ }
+ return rv;
+}
+
+static bool
+IsElementOrTemplateContent(nsINode* aNode) {
+ if (aNode) {
+ if (aNode->IsElement()) {
+ return true;
+ } else if (aNode->NodeType() == nsIDOMNode::DOCUMENT_FRAGMENT_NODE) {
+ // Check if the node is a template content.
+ mozilla::dom::DocumentFragment* frag =
+ static_cast<mozilla::dom::DocumentFragment*>(aNode);
+ nsIContent* fragHost = frag->GetHost();
+ if (fragHost && nsNodeUtils::IsTemplateElement(fragHost)) {
+ 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());
+ int32_t pos = parent->IndexOf(aNode);
+ NS_ASSERTION((pos >= 0), "Element not found as child of its parent");
+ parent->RemoveChildAt(pos, true);
+ }
+}
+
+nsresult
+nsHtml5TreeOperation::AppendChildrenToNewParent(nsIContent* aNode,
+ nsIContent* aParent,
+ nsHtml5DocumentBuilder* aBuilder)
+{
+ MOZ_ASSERT(aBuilder);
+ MOZ_ASSERT(aBuilder->IsInDocUpdate());
+ nsHtml5OtherDocUpdate update(aParent->OwnerDoc(),
+ aBuilder->GetDocument());
+
+ uint32_t childCount = aParent->GetChildCount();
+ bool didAppend = false;
+ while (aNode->HasChildren()) {
+ nsCOMPtr<nsIContent> child = aNode->GetFirstChild();
+ aNode->RemoveChildAt(0, true);
+ nsresult rv = aParent->AppendChildTo(child, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+ didAppend = true;
+ }
+ if (didAppend) {
+ nsNodeUtils::ContentAppended(aParent, aParent->GetChildAt(childCount),
+ childCount);
+ }
+ 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());
+
+ uint32_t pos = foster->IndexOf(aTable);
+ nsresult rv = foster->InsertChildAt(aNode, pos, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+ nsNodeUtils::ContentInserted(foster, aNode, pos);
+ return rv;
+ }
+
+ 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;
+ // prefix doesn't need regetting. it is always null or a static atom
+ // local name is never null
+ nsCOMPtr<nsIAtom> localName =
+ Reget(aAttributes->getLocalNameNoBoundsCheck(i));
+ int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
+ if (!node->HasAttr(nsuri, localName)) {
+ // prefix doesn't need regetting. it is always null or a static atom
+ // local name is never null
+ node->SetAttr(nsuri,
+ localName,
+ aAttributes->getPrefixNoBoundsCheck(i),
+ *(aAttributes->getValueNoBoundsCheck(i)),
+ true);
+ // XXX what to do with nsresult?
+ }
+ }
+ return NS_OK;
+}
+
+
+nsIContent*
+nsHtml5TreeOperation::CreateElement(int32_t aNs,
+ nsIAtom* aName,
+ nsHtml5HtmlAttributes* aAttributes,
+ mozilla::dom::FromParser aFromParser,
+ nsNodeInfoManager* aNodeInfoManager,
+ nsHtml5DocumentBuilder* aBuilder)
+{
+ bool isKeygen = (aName == nsHtml5Atoms::keygen && aNs == kNameSpaceID_XHTML);
+ if (MOZ_UNLIKELY(isKeygen)) {
+ aName = nsHtml5Atoms::select;
+ }
+
+ nsCOMPtr<dom::Element> newElement;
+ RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->
+ GetNodeInfo(aName, nullptr, aNs, nsIDOMNode::ELEMENT_NODE);
+ NS_ASSERTION(nodeInfo, "Got null nodeinfo.");
+ NS_NewElement(getter_AddRefs(newElement),
+ nodeInfo.forget(),
+ aFromParser);
+ NS_ASSERTION(newElement, "Element creation created null pointer.");
+
+ dom::Element* newContent = newElement;
+ aBuilder->HoldElement(newElement.forget());
+
+ if (MOZ_UNLIKELY(aName == nsHtml5Atoms::style || aName == nsHtml5Atoms::link)) {
+ nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(newContent));
+ if (ssle) {
+ ssle->InitStyleLinkElement(false);
+ ssle->SetEnableUpdates(false);
+ }
+ } else if (MOZ_UNLIKELY(isKeygen)) {
+ // Adapted from CNavDTD
+ nsresult rv;
+ nsCOMPtr<nsIFormProcessor> theFormProcessor =
+ do_GetService(kFormProcessorCID, &rv);
+ if (NS_FAILED(rv)) {
+ return newContent;
+ }
+
+ nsTArray<nsString> theContent;
+ nsAutoString theAttribute;
+
+ (void) theFormProcessor->ProvideContent(NS_LITERAL_STRING("select"),
+ theContent,
+ theAttribute);
+
+ newContent->SetAttr(kNameSpaceID_None,
+ nsGkAtoms::moztype,
+ nullptr,
+ theAttribute,
+ false);
+
+ RefPtr<dom::NodeInfo> optionNodeInfo =
+ aNodeInfoManager->GetNodeInfo(nsHtml5Atoms::option,
+ nullptr,
+ kNameSpaceID_XHTML,
+ nsIDOMNode::ELEMENT_NODE);
+
+ for (uint32_t i = 0; i < theContent.Length(); ++i) {
+ nsCOMPtr<dom::Element> optionElt;
+ RefPtr<dom::NodeInfo> ni = optionNodeInfo;
+ NS_NewElement(getter_AddRefs(optionElt),
+ ni.forget(),
+ aFromParser);
+ RefPtr<nsTextNode> optionText = new nsTextNode(aNodeInfoManager);
+ (void) optionText->SetText(theContent[i], false);
+ optionElt->AppendChildTo(optionText, false);
+ newContent->AppendChildTo(optionElt, false);
+ // XXXsmaug Shouldn't we call this after adding all the child nodes.
+ newContent->DoneAddingChildren(false);
+ }
+ }
+
+ if (!aAttributes) {
+ return newContent;
+ }
+
+ int32_t len = aAttributes->getLength();
+ for (int32_t i = 0; i < len; i++) {
+ // prefix doesn't need regetting. it is always null or a static atom
+ // local name is never null
+ nsCOMPtr<nsIAtom> localName =
+ Reget(aAttributes->getLocalNameNoBoundsCheck(i));
+ nsCOMPtr<nsIAtom> prefix = aAttributes->getPrefixNoBoundsCheck(i);
+ int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
+
+ if (aNs == kNameSpaceID_XHTML &&
+ nsHtml5Atoms::a == aName &&
+ nsHtml5Atoms::name == localName) {
+ // This is an HTML5-incompliant Geckoism.
+ // Remove when fixing bug 582361
+ NS_ConvertUTF16toUTF8 cname(*(aAttributes->getValueNoBoundsCheck(i)));
+ NS_ConvertUTF8toUTF16 uv(nsUnescape(cname.BeginWriting()));
+ newContent->SetAttr(nsuri,
+ localName,
+ prefix,
+ uv,
+ false);
+ } else {
+ nsString& value = *(aAttributes->getValueNoBoundsCheck(i));
+ newContent->SetAttr(nsuri,
+ localName,
+ prefix,
+ value,
+ false);
+
+ // Custom element setup may be needed if there is an "is" attribute.
+ if (kNameSpaceID_None == nsuri && !prefix && nsGkAtoms::is == localName) {
+ nsContentUtils::SetupCustomElement(newContent, &value);
+ }
+ }
+ }
+ return newContent;
+}
+
+void
+nsHtml5TreeOperation::SetFormElement(nsIContent* aNode, nsIContent* aParent)
+{
+ nsCOMPtr<nsIFormControl> formControl(do_QueryInterface(aNode));
+ nsCOMPtr<nsIDOMHTMLImageElement> domImageElement = do_QueryInterface(aNode);
+ // NS_ASSERTION(formControl, "Form-associated element did not implement nsIFormControl.");
+ // TODO: uncomment the above line when <keygen> (bug 101019) is supported by Gecko
+ nsCOMPtr<nsIDOMHTMLFormElement> formElement(do_QueryInterface(aParent));
+ NS_ASSERTION(formElement, "The form element doesn't implement nsIDOMHTMLFormElement.");
+ // avoid crashing on <keygen>
+ if (formControl &&
+ !aNode->HasAttr(kNameSpaceID_None, nsGkAtoms::form)) {
+ formControl->SetForm(formElement);
+ } else if (domImageElement) {
+ RefPtr<dom::HTMLImageElement> imageElement =
+ static_cast<dom::HTMLImageElement*>(domImageElement.get());
+ MOZ_ASSERT(imageElement);
+ imageElement->SetForm(formElement);
+ }
+}
+
+nsresult
+nsHtml5TreeOperation::AppendIsindexPrompt(nsIContent* parent, nsHtml5DocumentBuilder* aBuilder)
+{
+ nsXPIDLString prompt;
+ nsresult rv =
+ nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
+ "IsIndexPromptWithSpace", prompt);
+ uint32_t len = prompt.Length();
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ if (!len) {
+ // Don't bother appending a zero-length text node.
+ return NS_OK;
+ }
+ return AppendText(prompt.BeginReading(), len, parent, aBuilder);
+}
+
+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());
+
+ uint32_t pos = foster->IndexOf(aTable);
+
+ nsIContent* previousSibling = aTable->GetPreviousSibling();
+ if (previousSibling && previousSibling->IsNodeOfType(nsINode::eTEXT)) {
+ return AppendTextToTextNode(aBuffer,
+ aLength,
+ previousSibling,
+ aBuilder);
+ }
+
+ nsNodeInfoManager* nodeInfoManager = aStackParent->OwnerDoc()->NodeInfoManager();
+ RefPtr<nsTextNode> text = new nsTextNode(nodeInfoManager);
+ NS_ASSERTION(text, "Infallible malloc failed?");
+ rv = text->SetText(aBuffer, aLength, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = foster->InsertChildAt(text, pos, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+ nsNodeUtils::ContentInserted(foster, text, pos);
+ 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 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 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(nsIAtom* aName,
+ const nsAString& aPublicId,
+ const nsAString& aSystemId,
+ nsHtml5DocumentBuilder* aBuilder)
+{
+ // Adapted from nsXMLContentSink
+ // Create a new doctype node
+ nsCOMPtr<nsIDOMDocumentType> docType;
+ NS_NewDOMDocumentType(getter_AddRefs(docType),
+ aBuilder->GetNodeInfoManager(),
+ aName,
+ aPublicId,
+ aSystemId,
+ NullString());
+ NS_ASSERTION(docType, "Doctype creation failed.");
+ nsCOMPtr<nsIContent> asContent = do_QueryInterface(docType);
+ return AppendToDocument(asContent, 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);
+ MOZ_ASSERT(sele);
+ sele->PreventExecution();
+}
+
+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(NS_DispatchToMainThread(event))) {
+ 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)
+{
+ switch(mOpCode) {
+ case eTreeOpUninitialized: {
+ MOZ_CRASH("eTreeOpUninitialized");
+ }
+ case eTreeOpAppend: {
+ nsIContent* node = *(mOne.node);
+ nsIContent* parent = *(mTwo.node);
+ return Append(node, parent, aBuilder);
+ }
+ case eTreeOpDetach: {
+ nsIContent* node = *(mOne.node);
+ Detach(node, aBuilder);
+ return NS_OK;
+ }
+ case eTreeOpAppendChildrenToNewParent: {
+ nsCOMPtr<nsIContent> node = *(mOne.node);
+ nsIContent* parent = *(mTwo.node);
+ return AppendChildrenToNewParent(node, parent, aBuilder);
+ }
+ case eTreeOpFosterParent: {
+ nsIContent* node = *(mOne.node);
+ nsIContent* parent = *(mTwo.node);
+ nsIContent* table = *(mThree.node);
+ return FosterParent(node, parent, table, aBuilder);
+ }
+ case eTreeOpAppendToDocument: {
+ nsIContent* node = *(mOne.node);
+ return AppendToDocument(node, aBuilder);
+ }
+ case eTreeOpAddAttributes: {
+ nsIContent* node = *(mOne.node);
+ nsHtml5HtmlAttributes* attributes = mTwo.attributes;
+ return AddAttributes(node, attributes, aBuilder);
+ }
+ case eTreeOpDocumentMode: {
+ aBuilder->SetDocumentMode(mOne.mode);
+ return NS_OK;
+ }
+ case eTreeOpCreateElementNetwork:
+ case eTreeOpCreateElementNotNetwork: {
+ nsIContent** target = mOne.node;
+ int32_t ns = mFour.integer;
+ nsCOMPtr<nsIAtom> name = Reget(mTwo.atom);
+ nsHtml5HtmlAttributes* attributes = mThree.attributes;
+ nsIContent* intendedParent = mFive.node ? *(mFive.node) : nullptr;
+
+ // intendedParent == nullptr is a special case where the
+ // intended parent is the document.
+ nsNodeInfoManager* nodeInfoManager = intendedParent ?
+ intendedParent->OwnerDoc()->NodeInfoManager() :
+ aBuilder->GetNodeInfoManager();
+
+ *target = CreateElement(ns,
+ name,
+ attributes,
+ mOpCode == eTreeOpCreateElementNetwork ?
+ dom::FROM_PARSER_NETWORK :
+ dom::FROM_PARSER_DOCUMENT_WRITE,
+ nodeInfoManager,
+ aBuilder);
+ return NS_OK;
+ }
+ case eTreeOpSetFormElement: {
+ nsIContent* node = *(mOne.node);
+ nsIContent* parent = *(mTwo.node);
+ SetFormElement(node, parent);
+ return NS_OK;
+ }
+ case eTreeOpAppendText: {
+ nsIContent* parent = *mOne.node;
+ char16_t* buffer = mTwo.unicharPtr;
+ uint32_t length = mFour.integer;
+ return AppendText(buffer, length, parent, aBuilder);
+ }
+ case eTreeOpAppendIsindexPrompt: {
+ nsIContent* parent = *mOne.node;
+ return AppendIsindexPrompt(parent, aBuilder);
+ }
+ case eTreeOpFosterParentText: {
+ nsIContent* stackParent = *mOne.node;
+ char16_t* buffer = mTwo.unicharPtr;
+ uint32_t length = mFour.integer;
+ nsIContent* table = *mThree.node;
+ return FosterParentText(stackParent, buffer, length, table, aBuilder);
+ }
+ case eTreeOpAppendComment: {
+ nsIContent* parent = *mOne.node;
+ char16_t* buffer = mTwo.unicharPtr;
+ int32_t length = mFour.integer;
+ return AppendComment(parent, buffer, length, aBuilder);
+ }
+ case eTreeOpAppendCommentToDocument: {
+ char16_t* buffer = mTwo.unicharPtr;
+ int32_t length = mFour.integer;
+ return AppendCommentToDocument(buffer, length, aBuilder);
+ }
+ case eTreeOpAppendDoctypeToDocument: {
+ nsCOMPtr<nsIAtom> name = Reget(mOne.atom);
+ nsHtml5TreeOperationStringPair* pair = mTwo.stringPair;
+ nsString publicId;
+ nsString systemId;
+ pair->Get(publicId, systemId);
+ return AppendDoctypeToDocument(name, publicId, systemId, aBuilder);
+ }
+ case eTreeOpGetDocumentFragmentForTemplate: {
+ nsIContent* node = *(mOne.node);
+ *mTwo.node = GetDocumentFragmentForTemplate(node);
+ return NS_OK;
+ }
+ case eTreeOpGetFosterParent: {
+ nsIContent* table = *(mOne.node);
+ nsIContent* stackParent = *(mTwo.node);
+ nsIContent* fosterParent = GetFosterParent(table, stackParent);
+ *mThree.node = fosterParent;
+ return NS_OK;
+ }
+ case eTreeOpMarkAsBroken: {
+ return mOne.result;
+ }
+ case eTreeOpRunScript: {
+ nsIContent* node = *(mOne.node);
+ nsAHtml5TreeBuilderState* snapshot = mTwo.state;
+ if (snapshot) {
+ aBuilder->InitializeDocWriteParserState(snapshot, mFour.integer);
+ }
+ *aScriptElement = node;
+ return NS_OK;
+ }
+ case eTreeOpRunScriptAsyncDefer: {
+ nsIContent* node = *(mOne.node);
+ aBuilder->RunScript(node);
+ return NS_OK;
+ }
+ case eTreeOpPreventScriptExecution: {
+ nsIContent* node = *(mOne.node);
+ PreventScriptExecution(node);
+ return NS_OK;
+ }
+ case eTreeOpDoneAddingChildren: {
+ nsIContent* node = *(mOne.node);
+ node->DoneAddingChildren(node->HasParserNotified());
+ return NS_OK;
+ }
+ case eTreeOpDoneCreatingElement: {
+ nsIContent* node = *(mOne.node);
+ DoneCreatingElement(node);
+ return NS_OK;
+ }
+ case eTreeOpSetDocumentCharset: {
+ char* str = mOne.charPtr;
+ int32_t charsetSource = mFour.integer;
+ nsDependentCString dependentString(str);
+ aBuilder->SetDocumentCharsetAndSource(dependentString, charsetSource);
+ return NS_OK;
+ }
+ case eTreeOpNeedsCharsetSwitchTo: {
+ char* str = mOne.charPtr;
+ int32_t charsetSource = mFour.integer;
+ int32_t lineNumber = mTwo.integer;
+ aBuilder->NeedsCharsetSwitchTo(str, charsetSource, (uint32_t)lineNumber);
+ return NS_OK;
+ }
+ case eTreeOpUpdateStyleSheet: {
+ nsIContent* node = *(mOne.node);
+ aBuilder->UpdateStyleSheet(node);
+ return NS_OK;
+ }
+ case eTreeOpProcessMeta: {
+ nsIContent* node = *(mOne.node);
+ return aBuilder->ProcessMETATag(node);
+ }
+ case eTreeOpProcessOfflineManifest: {
+ char16_t* str = mOne.unicharPtr;
+ nsDependentString dependentString(str);
+ aBuilder->ProcessOfflineManifest(dependentString);
+ return NS_OK;
+ }
+ case eTreeOpMarkMalformedIfScript: {
+ nsIContent* node = *(mOne.node);
+ MarkMalformedIfScript(node);
+ return NS_OK;
+ }
+ case eTreeOpStreamEnded: {
+ aBuilder->DidBuildModel(false); // this causes a notifications flush anyway
+ return NS_OK;
+ }
+ case eTreeOpSetStyleLineNumber: {
+ nsIContent* node = *(mOne.node);
+ nsCOMPtr<nsIStyleSheetLinkingElement> ssle = do_QueryInterface(node);
+ NS_ASSERTION(ssle, "Node didn't QI to style.");
+ ssle->SetLineNumber(mFour.integer);
+ return NS_OK;
+ }
+ case eTreeOpSetScriptLineNumberAndFreeze: {
+ nsIContent* node = *(mOne.node);
+ nsCOMPtr<nsIScriptElement> sele = do_QueryInterface(node);
+ NS_ASSERTION(sele, "Node didn't QI to script.");
+ sele->SetScriptLineNumber(mFour.integer);
+ sele->FreezeUriAsyncDefer();
+ return NS_OK;
+ }
+ case eTreeOpSvgLoad: {
+ nsIContent* node = *(mOne.node);
+ SvgLoad(node);
+ return NS_OK;
+ }
+ case eTreeOpMaybeComplainAboutCharset: {
+ char* msgId = mOne.charPtr;
+ bool error = mTwo.integer;
+ int32_t lineNumber = mThree.integer;
+ aBuilder->MaybeComplainAboutCharset(msgId, error, (uint32_t)lineNumber);
+ return NS_OK;
+ }
+ case eTreeOpAddClass: {
+ nsIContent* node = *(mOne.node);
+ char16_t* str = mTwo.unicharPtr;
+ nsDependentString depStr(str);
+ // See viewsource.css for the possible classes
+ nsAutoString klass;
+ node->GetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass);
+ if (!klass.IsEmpty()) {
+ klass.Append(' ');
+ klass.Append(depStr);
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass, true);
+ } else {
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, depStr, true);
+ }
+ return NS_OK;
+ }
+ case eTreeOpAddViewSourceHref: {
+ nsIContent* node = *mOne.node;
+ char16_t* buffer = mTwo.unicharPtr;
+ int32_t length = mFour.integer;
+
+ nsDependentString relative(buffer, length);
+
+ nsIDocument* doc = aBuilder->GetDocument();
+
+ const nsCString& charset = doc->GetDocumentCharacterSet();
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = NS_NewURI(getter_AddRefs(uri),
+ relative,
+ charset.get(),
+ aBuilder->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);
+
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::href, utf16, true);
+ return NS_OK;
+ }
+ case eTreeOpAddViewSourceBase: {
+ char16_t* buffer = mTwo.unicharPtr;
+ int32_t length = mFour.integer;
+ nsDependentString baseUrl(buffer, length);
+ aBuilder->AddBase(baseUrl);
+ return NS_OK;
+ }
+ case eTreeOpAddError: {
+ nsIContent* node = *(mOne.node);
+ char* msgId = mTwo.charPtr;
+ nsCOMPtr<nsIAtom> atom = Reget(mThree.atom);
+ nsCOMPtr<nsIAtom> otherAtom = Reget(mFour.atom);
+ // See viewsource.css for the possible classes in addition to "error".
+ nsAutoString klass;
+ node->GetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass);
+ if (!klass.IsEmpty()) {
+ klass.AppendLiteral(" error");
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, klass, true);
+ } else {
+ node->SetAttr(kNameSpaceID_None,
+ nsGkAtoms::_class,
+ NS_LITERAL_STRING("error"),
+ true);
+ }
+
+ nsresult rv;
+ nsXPIDLString message;
+ if (otherAtom) {
+ const char16_t* params[] = { atom->GetUTF16String(),
+ otherAtom->GetUTF16String() };
+ rv = nsContentUtils::FormatLocalizedString(
+ nsContentUtils::eHTMLPARSER_PROPERTIES, msgId, params, message);
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ } else if (atom) {
+ const char16_t* params[] = { atom->GetUTF16String() };
+ rv = nsContentUtils::FormatLocalizedString(
+ nsContentUtils::eHTMLPARSER_PROPERTIES, msgId, params, message);
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ } else {
+ rv = nsContentUtils::GetLocalizedString(
+ nsContentUtils::eHTMLPARSER_PROPERTIES, msgId, message);
+ NS_ENSURE_SUCCESS(rv, NS_OK);
+ }
+
+ nsAutoString title;
+ node->GetAttr(kNameSpaceID_None, nsGkAtoms::title, title);
+ if (!title.IsEmpty()) {
+ title.Append('\n');
+ title.Append(message);
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::title, title, true);
+ } else {
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::title, message, true);
+ }
+ return rv;
+ }
+ case eTreeOpAddLineNumberId: {
+ nsIContent* node = *(mOne.node);
+ int32_t lineNumber = mFour.integer;
+ nsAutoString val(NS_LITERAL_STRING("line"));
+ val.AppendInt(lineNumber);
+ node->SetAttr(kNameSpaceID_None, nsGkAtoms::id, val, true);
+ return NS_OK;
+ }
+ case eTreeOpStartLayout: {
+ aBuilder->StartLayout(); // this causes a notification flush anyway
+ return NS_OK;
+ }
+ default: {
+ MOZ_CRASH("Bogus tree op");
+ }
+ }
+ return NS_OK; // keep compiler happy
+}