зеркало из https://github.com/mozilla/gecko-dev.git
1082 строки
37 KiB
C++
1082 строки
37 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et tw=78: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsHtml5TreeOperation.h"
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#include "mozAutoDocUpdate.h"
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#include "mozilla/Likely.h"
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#include "mozilla/dom/Comment.h"
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#include "mozilla/dom/DocumentType.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "mozilla/dom/HTMLImageElement.h"
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#include "mozilla/dom/HTMLTemplateElement.h"
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#include "mozilla/dom/Text.h"
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#include "nsAttrName.h"
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#include "nsBindingManager.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsContentUtils.h"
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#include "nsDocElementCreatedNotificationRunner.h"
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#include "nsEscape.h"
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#include "nsHtml5AutoPauseUpdate.h"
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#include "nsHtml5DocumentMode.h"
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#include "nsHtml5HtmlAttributes.h"
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#include "nsHtml5SVGLoadDispatcher.h"
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#include "nsHtml5TreeBuilder.h"
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#include "nsIDTD.h"
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#include "nsIFormControl.h"
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#include "nsIMutationObserver.h"
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#include "nsINode.h"
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#include "nsIObserverService.h"
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#include "nsIProtocolHandler.h"
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#include "nsIScriptElement.h"
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#include "nsIServiceManager.h"
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#include "nsIStyleSheetLinkingElement.h"
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#include "nsISupportsImpl.h"
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#include "nsIURI.h"
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#include "nsNetUtil.h"
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#include "nsNodeUtils.h"
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#include "nsTextNode.h"
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#include "nsXBLBinding.h"
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using namespace mozilla;
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using mozilla::dom::Document;
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/**
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* Helper class that opens a notification batch if the current doc
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* is different from the executor doc.
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*/
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class MOZ_STACK_CLASS nsHtml5OtherDocUpdate {
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public:
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nsHtml5OtherDocUpdate(Document* aCurrentDoc, Document* aExecutorDoc) {
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MOZ_ASSERT(aCurrentDoc, "Node has no doc?");
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MOZ_ASSERT(aExecutorDoc, "Executor has no doc?");
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if (MOZ_LIKELY(aCurrentDoc == aExecutorDoc)) {
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mDocument = nullptr;
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} else {
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mDocument = aCurrentDoc;
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aCurrentDoc->BeginUpdate();
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}
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}
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~nsHtml5OtherDocUpdate() {
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if (MOZ_UNLIKELY(mDocument)) {
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mDocument->EndUpdate();
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}
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}
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private:
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RefPtr<Document> mDocument;
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};
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nsHtml5TreeOperation::nsHtml5TreeOperation()
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: mOpCode(eTreeOpUninitialized),
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mOne{},
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mTwo{},
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mThree{},
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mFour{},
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mFive{} {
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MOZ_COUNT_CTOR(nsHtml5TreeOperation);
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}
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nsHtml5TreeOperation::~nsHtml5TreeOperation() {
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MOZ_COUNT_DTOR(nsHtml5TreeOperation);
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NS_ASSERTION(mOpCode != eTreeOpUninitialized, "Uninitialized tree op.");
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switch (mOpCode) {
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case eTreeOpAddAttributes:
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delete mTwo.attributes;
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break;
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case eTreeOpCreateHTMLElementNetwork:
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case eTreeOpCreateHTMLElementNotNetwork:
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case eTreeOpCreateSVGElementNetwork:
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case eTreeOpCreateSVGElementNotNetwork:
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case eTreeOpCreateMathMLElement:
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mTwo.atom->Release();
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delete mThree.attributes;
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break;
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case eTreeOpAddError:
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if (mThree.atom) {
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mThree.atom->Release();
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}
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if (mFour.atom) {
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mFour.atom->Release();
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}
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break;
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case eTreeOpAppendDoctypeToDocument:
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mOne.atom->Release();
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delete mTwo.stringPair;
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break;
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case eTreeOpFosterParentText:
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case eTreeOpAppendText:
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case eTreeOpAppendComment:
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case eTreeOpAppendCommentToDocument:
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case eTreeOpAddViewSourceHref:
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case eTreeOpAddViewSourceBase:
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delete[] mTwo.unicharPtr;
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break;
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case eTreeOpSetDocumentCharset:
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case eTreeOpNeedsCharsetSwitchTo:
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break;
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case eTreeOpProcessOfflineManifest:
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free(mOne.unicharPtr);
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break;
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default: // keep the compiler happy
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break;
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}
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}
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nsresult nsHtml5TreeOperation::AppendTextToTextNode(
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const char16_t* aBuffer, uint32_t aLength, dom::Text* aTextNode,
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nsHtml5DocumentBuilder* aBuilder) {
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MOZ_ASSERT(aTextNode, "Got null text node.");
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MOZ_ASSERT(aBuilder);
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MOZ_ASSERT(aBuilder->IsInDocUpdate());
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uint32_t oldLength = aTextNode->TextLength();
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CharacterDataChangeInfo info = {true, oldLength, oldLength, aLength};
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nsNodeUtils::CharacterDataWillChange(aTextNode, info);
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nsresult rv = aTextNode->AppendText(aBuffer, aLength, false);
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NS_ENSURE_SUCCESS(rv, rv);
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nsNodeUtils::CharacterDataChanged(aTextNode, info);
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return rv;
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}
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nsresult nsHtml5TreeOperation::AppendText(const char16_t* aBuffer,
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uint32_t aLength, nsIContent* aParent,
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nsHtml5DocumentBuilder* aBuilder) {
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nsresult rv = NS_OK;
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nsIContent* lastChild = aParent->GetLastChild();
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if (lastChild && lastChild->IsText()) {
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nsHtml5OtherDocUpdate update(aParent->OwnerDoc(), aBuilder->GetDocument());
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return AppendTextToTextNode(aBuffer, aLength, lastChild->GetAsText(),
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aBuilder);
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}
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nsNodeInfoManager* nodeInfoManager = aParent->OwnerDoc()->NodeInfoManager();
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RefPtr<nsTextNode> text = new nsTextNode(nodeInfoManager);
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NS_ASSERTION(text, "Infallible malloc failed?");
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rv = text->SetText(aBuffer, aLength, false);
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NS_ENSURE_SUCCESS(rv, rv);
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return Append(text, aParent, aBuilder);
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}
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nsresult nsHtml5TreeOperation::Append(nsIContent* aNode, nsIContent* aParent,
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nsHtml5DocumentBuilder* aBuilder) {
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MOZ_ASSERT(aBuilder);
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MOZ_ASSERT(aBuilder->IsInDocUpdate());
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nsresult rv = NS_OK;
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nsHtml5OtherDocUpdate update(aParent->OwnerDoc(), aBuilder->GetDocument());
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rv = aParent->AppendChildTo(aNode, false);
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if (NS_SUCCEEDED(rv)) {
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aNode->SetParserHasNotified();
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nsNodeUtils::ContentAppended(aParent, aNode);
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}
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return rv;
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}
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nsresult nsHtml5TreeOperation::AppendToDocument(
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nsIContent* aNode, nsHtml5DocumentBuilder* aBuilder) {
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MOZ_ASSERT(aBuilder);
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MOZ_ASSERT(aBuilder->GetDocument() == aNode->OwnerDoc());
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MOZ_ASSERT(aBuilder->IsInDocUpdate());
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nsresult rv = NS_OK;
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Document* doc = aBuilder->GetDocument();
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rv = doc->AppendChildTo(aNode, false);
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if (rv == NS_ERROR_DOM_HIERARCHY_REQUEST_ERR) {
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aNode->SetParserHasNotified();
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return NS_OK;
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}
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NS_ENSURE_SUCCESS(rv, rv);
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aNode->SetParserHasNotified();
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nsNodeUtils::ContentInserted(doc, aNode);
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NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
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"Someone forgot to block scripts");
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if (aNode->IsElement()) {
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nsContentUtils::AddScriptRunner(
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new nsDocElementCreatedNotificationRunner(doc));
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}
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return rv;
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}
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static bool IsElementOrTemplateContent(nsINode* aNode) {
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if (aNode) {
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if (aNode->IsElement()) {
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return true;
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}
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if (aNode->IsDocumentFragment()) {
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// Check if the node is a template content.
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nsIContent* fragHost = aNode->AsDocumentFragment()->GetHost();
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if (fragHost && nsNodeUtils::IsTemplateElement(fragHost)) {
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return true;
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}
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}
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}
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return false;
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}
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void nsHtml5TreeOperation::Detach(nsIContent* aNode,
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nsHtml5DocumentBuilder* aBuilder) {
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MOZ_ASSERT(aBuilder);
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MOZ_ASSERT(aBuilder->IsInDocUpdate());
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nsCOMPtr<nsINode> parent = aNode->GetParentNode();
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if (parent) {
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nsHtml5OtherDocUpdate update(parent->OwnerDoc(), aBuilder->GetDocument());
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parent->RemoveChildNode(aNode, true);
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}
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}
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nsresult nsHtml5TreeOperation::AppendChildrenToNewParent(
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nsIContent* aNode, nsIContent* aParent, nsHtml5DocumentBuilder* aBuilder) {
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MOZ_ASSERT(aBuilder);
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MOZ_ASSERT(aBuilder->IsInDocUpdate());
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nsHtml5OtherDocUpdate update(aParent->OwnerDoc(), aBuilder->GetDocument());
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bool didAppend = false;
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while (aNode->HasChildren()) {
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nsCOMPtr<nsIContent> child = aNode->GetFirstChild();
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aNode->RemoveChildNode(child, true);
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nsresult rv = aParent->AppendChildTo(child, false);
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NS_ENSURE_SUCCESS(rv, rv);
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didAppend = true;
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}
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if (didAppend) {
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nsNodeUtils::ContentAppended(aParent, aParent->GetLastChild());
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}
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return NS_OK;
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}
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nsresult nsHtml5TreeOperation::FosterParent(nsIContent* aNode,
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nsIContent* aParent,
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nsIContent* aTable,
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nsHtml5DocumentBuilder* aBuilder) {
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MOZ_ASSERT(aBuilder);
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MOZ_ASSERT(aBuilder->IsInDocUpdate());
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nsIContent* foster = aTable->GetParent();
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if (IsElementOrTemplateContent(foster)) {
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nsHtml5OtherDocUpdate update(foster->OwnerDoc(), aBuilder->GetDocument());
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nsresult rv = foster->InsertChildBefore(aNode, aTable, false);
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NS_ENSURE_SUCCESS(rv, rv);
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nsNodeUtils::ContentInserted(foster, aNode);
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return rv;
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}
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return Append(aNode, aParent, aBuilder);
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}
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nsresult nsHtml5TreeOperation::AddAttributes(nsIContent* aNode,
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nsHtml5HtmlAttributes* aAttributes,
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nsHtml5DocumentBuilder* aBuilder) {
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dom::Element* node = aNode->AsElement();
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nsHtml5OtherDocUpdate update(node->OwnerDoc(), aBuilder->GetDocument());
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int32_t len = aAttributes->getLength();
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for (int32_t i = len; i > 0;) {
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--i;
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nsAtom* localName = aAttributes->getLocalNameNoBoundsCheck(i);
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int32_t nsuri = aAttributes->getURINoBoundsCheck(i);
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if (!node->HasAttr(nsuri, localName)) {
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nsString value; // Not Auto, because using it to hold nsStringBuffer*
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aAttributes->getValueNoBoundsCheck(i).ToString(value);
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node->SetAttr(nsuri, localName, aAttributes->getPrefixNoBoundsCheck(i),
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value, true);
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// XXX what to do with nsresult?
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}
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}
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return NS_OK;
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}
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void nsHtml5TreeOperation::SetHTMLElementAttributes(
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dom::Element* aElement, nsAtom* aName, nsHtml5HtmlAttributes* aAttributes) {
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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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nsAtom* localName = aAttributes->getLocalNameNoBoundsCheck(i);
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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, localName, prefix, uv, false);
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} else {
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aElement->SetAttr(nsuri, localName, prefix, value, false);
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}
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}
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}
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}
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nsIContent* nsHtml5TreeOperation::CreateHTMLElement(
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nsAtom* aName, nsHtml5HtmlAttributes* aAttributes,
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mozilla::dom::FromParser aFromParser, nsNodeInfoManager* aNodeInfoManager,
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nsHtml5DocumentBuilder* aBuilder,
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mozilla::dom::HTMLContentCreatorFunction aCreator) {
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RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
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aName, nullptr, kNameSpaceID_XHTML, nsINode::ELEMENT_NODE);
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NS_ASSERTION(nodeInfo, "Got null nodeinfo.");
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dom::Element* newContent = nullptr;
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Document* document = nodeInfo->GetDocument();
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bool willExecuteScript = false;
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bool isCustomElement = false;
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RefPtr<nsAtom> isAtom;
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dom::CustomElementDefinition* definition = nullptr;
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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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nsAutoString isValue;
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is.ToString(isValue);
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isAtom = NS_Atomize(isValue);
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}
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}
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isCustomElement = (aCreator == NS_NewCustomElement || isAtom);
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if (isCustomElement && aFromParser != dom::FROM_PARSER_FRAGMENT) {
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RefPtr<nsAtom> tagAtom = nodeInfo->NameAtom();
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RefPtr<nsAtom> typeAtom =
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(aCreator == NS_NewCustomElement) ? tagAtom : isAtom;
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MOZ_ASSERT(nodeInfo->NameAtom()->Equals(nodeInfo->LocalName()));
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definition = nsContentUtils::LookupCustomElementDefinition(
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document, nodeInfo->NameAtom(), nodeInfo->NamespaceID(), typeAtom);
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if (definition) {
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willExecuteScript = true;
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}
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}
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if (willExecuteScript) { // This will cause custom element constructors to
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// run
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mozilla::dom::AutoSetThrowOnDynamicMarkupInsertionCounter
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throwOnDynamicMarkupInsertionCounter(document);
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nsHtml5AutoPauseUpdate autoPauseContentUpdate(aBuilder);
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{ nsAutoMicroTask mt; }
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dom::AutoCEReaction autoCEReaction(
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document->GetDocGroup()->CustomElementReactionsStack(), nullptr);
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nsCOMPtr<dom::Element> newElement;
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NS_NewHTMLElement(getter_AddRefs(newElement), nodeInfo.forget(),
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aFromParser, isAtom, 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, isAtom, 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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}
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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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nsIContent* nsHtml5TreeOperation::CreateSVGElement(
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nsAtom* aName, nsHtml5HtmlAttributes* aAttributes,
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mozilla::dom::FromParser aFromParser, nsNodeInfoManager* aNodeInfoManager,
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nsHtml5DocumentBuilder* aBuilder,
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mozilla::dom::SVGContentCreatorFunction aCreator) {
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nsCOMPtr<nsIContent> newElement;
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if (MOZ_LIKELY(aNodeInfoManager->SVGEnabled())) {
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RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
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aName, nullptr, kNameSpaceID_SVG, nsINode::ELEMENT_NODE);
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MOZ_ASSERT(nodeInfo, "Got null nodeinfo.");
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mozilla::DebugOnly<nsresult> rv =
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aCreator(getter_AddRefs(newElement), nodeInfo.forget(), aFromParser);
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MOZ_ASSERT(NS_SUCCEEDED(rv) && newElement);
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} else {
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RefPtr<dom::NodeInfo> nodeInfo = aNodeInfoManager->GetNodeInfo(
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aName, nullptr, kNameSpaceID_disabled_SVG, nsINode::ELEMENT_NODE);
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MOZ_ASSERT(nodeInfo, "Got null nodeinfo.");
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// The mismatch between NS_NewXMLElement and SVGContentCreatorFunction
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// argument types is annoying.
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nsCOMPtr<dom::Element> xmlElement;
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mozilla::DebugOnly<nsresult> rv =
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NS_NewXMLElement(getter_AddRefs(xmlElement), nodeInfo.forget());
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MOZ_ASSERT(NS_SUCCEEDED(rv) && xmlElement);
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newElement = xmlElement;
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}
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dom::Element* newContent = newElement->AsElement();
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aBuilder->HoldElement(newElement.forget());
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if (MOZ_UNLIKELY(aName == nsGkAtoms::style)) {
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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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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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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) {
|
|
nsCOMPtr<nsIFormControl> formControl(do_QueryInterface(aNode));
|
|
RefPtr<dom::HTMLImageElement> domImageElement =
|
|
dom::HTMLImageElement::FromNodeOrNull(aNode);
|
|
// NS_ASSERTION(formControl, "Form-associated element did not implement
|
|
// nsIFormControl.");
|
|
// TODO: uncomment the above line when img doesn't cause an issue (bug
|
|
// 1558793)
|
|
RefPtr<dom::HTMLFormElement> formElement =
|
|
dom::HTMLFormElement::FromNodeOrNull(aParent);
|
|
NS_ASSERTION(formElement,
|
|
"The form element doesn't implement HTMLFormElement.");
|
|
// Avoid crashing on <img>
|
|
if (formControl &&
|
|
!aNode->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::form)) {
|
|
formControl->SetForm(formElement);
|
|
} else if (domImageElement) {
|
|
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 nsTextNode(nodeInfoManager);
|
|
NS_ASSERTION(text, "Infallible malloc failed?");
|
|
rv = text->SetText(aBuffer, aLength, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = foster->InsertChildBefore(text, aTable, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsNodeUtils::ContentInserted(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 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(
|
|
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) {
|
|
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);
|
|
nsresult rv = AppendToDocument(node, aBuilder);
|
|
|
|
aBuilder->PauseDocUpdate(aInterrupted);
|
|
return rv;
|
|
}
|
|
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 eTreeOpCreateHTMLElementNetwork:
|
|
case eTreeOpCreateHTMLElementNotNetwork: {
|
|
nsIContent** target = mOne.node;
|
|
mozilla::dom::HTMLContentCreatorFunction creator = mFour.htmlCreator;
|
|
nsAtom* name = 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 = CreateHTMLElement(name, attributes,
|
|
mOpCode == eTreeOpCreateHTMLElementNetwork
|
|
? dom::FROM_PARSER_NETWORK
|
|
: dom::FROM_PARSER_DOCUMENT_WRITE,
|
|
nodeInfoManager, aBuilder, creator);
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpCreateSVGElementNetwork:
|
|
case eTreeOpCreateSVGElementNotNetwork: {
|
|
nsIContent** target = mOne.node;
|
|
mozilla::dom::SVGContentCreatorFunction creator = mFour.svgCreator;
|
|
nsAtom* name = 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 = CreateSVGElement(name, attributes,
|
|
mOpCode == eTreeOpCreateSVGElementNetwork
|
|
? dom::FROM_PARSER_NETWORK
|
|
: dom::FROM_PARSER_DOCUMENT_WRITE,
|
|
nodeInfoManager, aBuilder, creator);
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpCreateMathMLElement: {
|
|
nsIContent** target = mOne.node;
|
|
nsAtom* name = 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 =
|
|
CreateMathMLElement(name, attributes, 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 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: {
|
|
nsAtom* name = 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: {
|
|
auto encoding = WrapNotNull(mOne.encoding);
|
|
int32_t charsetSource = mFour.integer;
|
|
aBuilder->SetDocumentCharsetAndSource(encoding, charsetSource);
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpNeedsCharsetSwitchTo: {
|
|
auto encoding = WrapNotNull(mOne.encoding);
|
|
int32_t charsetSource = mFour.integer;
|
|
int32_t lineNumber = mTwo.integer;
|
|
aBuilder->NeedsCharsetSwitchTo(encoding, 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: {
|
|
*aStreamEnded = true;
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpSetStyleLineNumber: {
|
|
nsIContent* node = *(mOne.node);
|
|
nsCOMPtr<nsIStyleSheetLinkingElement> ssle = do_QueryInterface(node);
|
|
if (ssle) {
|
|
ssle->SetLineNumber(mFour.integer);
|
|
} else {
|
|
MOZ_ASSERT(nsNameSpaceManager::GetInstance()->mSVGDisabled,
|
|
"Node didn't QI to style, but SVG wasn't disabled.");
|
|
}
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpSetScriptLineNumberAndFreeze: {
|
|
nsIContent* node = *(mOne.node);
|
|
nsCOMPtr<nsIScriptElement> sele = do_QueryInterface(node);
|
|
if (sele) {
|
|
sele->SetScriptLineNumber(mFour.integer);
|
|
sele->FreezeExecutionAttrs(node->OwnerDoc());
|
|
} else {
|
|
MOZ_ASSERT(nsNameSpaceManager::GetInstance()->mSVGDisabled,
|
|
"Node didn't QI to script, but SVG wasn't disabled.");
|
|
}
|
|
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 eTreeOpEnableEncodingMenu: {
|
|
Document* doc = aBuilder->GetDocument();
|
|
doc->EnableEncodingMenu();
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpMaybeComplainAboutDeepTree: {
|
|
int32_t lineNumber = mOne.integer;
|
|
aBuilder->MaybeComplainAboutDeepTree((uint32_t)lineNumber);
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpAddClass: {
|
|
Element* element = (*(mOne.node))->AsElement();
|
|
char16_t* str = mTwo.unicharPtr;
|
|
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;
|
|
}
|
|
case eTreeOpAddViewSourceHref: {
|
|
Element* element = (*mOne.node)->AsElement();
|
|
char16_t* buffer = mTwo.unicharPtr;
|
|
int32_t length = mFour.integer;
|
|
|
|
nsDependentString relative(buffer, length);
|
|
|
|
Document* doc = aBuilder->GetDocument();
|
|
|
|
auto encoding = doc->GetDocumentCharacterSet();
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsresult rv = NS_NewURI(getter_AddRefs(uri), relative, encoding,
|
|
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);
|
|
|
|
element->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: {
|
|
Element* element = (*(mOne.node))->AsElement();
|
|
char* msgId = mTwo.charPtr;
|
|
nsAtom* atom = mThree.atom;
|
|
nsAtom* otherAtom = mFour.atom;
|
|
// 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,
|
|
NS_LITERAL_STRING("error"), 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;
|
|
}
|
|
case eTreeOpAddLineNumberId: {
|
|
Element* element = (*(mOne.node))->AsElement();
|
|
int32_t lineNumber = mFour.integer;
|
|
nsAutoString val(NS_LITERAL_STRING("line"));
|
|
val.AppendInt(lineNumber);
|
|
element->SetAttr(kNameSpaceID_None, nsGkAtoms::id, val, true);
|
|
return NS_OK;
|
|
}
|
|
case eTreeOpStartLayout: {
|
|
aBuilder->StartLayout(
|
|
aInterrupted); // this causes a notification flush anyway
|
|
return NS_OK;
|
|
}
|
|
default: {
|
|
MOZ_CRASH("Bogus tree op");
|
|
}
|
|
}
|
|
return NS_OK; // keep compiler happy
|
|
}
|