зеркало из https://github.com/mozilla/gecko-dev.git
350 строки
11 KiB
C++
350 строки
11 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/dom/XMLDocument.h"
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#include "nsParserCIID.h"
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#include "nsCharsetSource.h"
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#include "nsIXMLContentSink.h"
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#include "nsPresContext.h"
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#include "nsIContent.h"
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#include "nsIDocShell.h"
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#include "nsHTMLParts.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsIURI.h"
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#include "nsNetUtil.h"
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#include "nsError.h"
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#include "nsIPrincipal.h"
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#include "nsLayoutCID.h"
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#include "mozilla/dom/Attr.h"
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#include "nsCExternalHandlerService.h"
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#include "nsMimeTypes.h"
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#include "nsContentUtils.h"
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#include "nsThreadUtils.h"
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#include "nsJSUtils.h"
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#include "nsCRT.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsContentPolicyUtils.h"
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#include "nsIConsoleService.h"
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#include "nsIScriptError.h"
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#include "nsHTMLDocument.h"
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#include "mozilla/BasicEvents.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/Encoding.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/XMLDocumentBinding.h"
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#include "mozilla/dom/DocumentBinding.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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// ==================================================================
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// =
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// ==================================================================
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nsresult NS_NewDOMDocument(Document** aInstancePtrResult,
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const nsAString& aNamespaceURI,
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const nsAString& aQualifiedName,
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DocumentType* aDoctype, nsIURI* aDocumentURI,
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nsIURI* aBaseURI, nsIPrincipal* aPrincipal,
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bool aLoadedAsData, nsIGlobalObject* aEventObject,
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DocumentFlavor aFlavor) {
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// Note: can't require that aDocumentURI/aBaseURI/aPrincipal be non-null,
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// since at least one caller (XMLHttpRequest) doesn't have decent args to
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// pass in.
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nsresult rv;
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*aInstancePtrResult = nullptr;
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nsCOMPtr<Document> d;
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bool isHTML = false;
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bool isXHTML = false;
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if (aFlavor == DocumentFlavorSVG) {
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rv = NS_NewSVGDocument(getter_AddRefs(d));
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} else if (aFlavor == DocumentFlavorHTML) {
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rv = NS_NewHTMLDocument(getter_AddRefs(d));
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isHTML = true;
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} else if (aFlavor == DocumentFlavorPlain) {
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rv = NS_NewXMLDocument(getter_AddRefs(d), aLoadedAsData, true);
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} else if (aDoctype) {
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MOZ_ASSERT(aFlavor == DocumentFlavorLegacyGuess);
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nsAutoString publicId, name;
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aDoctype->GetPublicId(publicId);
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if (publicId.IsEmpty()) {
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aDoctype->GetName(name);
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}
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if (name.EqualsLiteral("html") ||
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publicId.EqualsLiteral("-//W3C//DTD HTML 4.01//EN") ||
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publicId.EqualsLiteral("-//W3C//DTD HTML 4.01 Frameset//EN") ||
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publicId.EqualsLiteral("-//W3C//DTD HTML 4.01 Transitional//EN") ||
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publicId.EqualsLiteral("-//W3C//DTD HTML 4.0//EN") ||
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publicId.EqualsLiteral("-//W3C//DTD HTML 4.0 Frameset//EN") ||
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publicId.EqualsLiteral("-//W3C//DTD HTML 4.0 Transitional//EN")) {
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rv = NS_NewHTMLDocument(getter_AddRefs(d));
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isHTML = true;
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} else if (publicId.EqualsLiteral("-//W3C//DTD XHTML 1.0 Strict//EN") ||
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publicId.EqualsLiteral(
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"-//W3C//DTD XHTML 1.0 Transitional//EN") ||
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publicId.EqualsLiteral("-//W3C//DTD XHTML 1.0 Frameset//EN")) {
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rv = NS_NewHTMLDocument(getter_AddRefs(d));
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isHTML = true;
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isXHTML = true;
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} else if (publicId.EqualsLiteral("-//W3C//DTD SVG 1.1//EN")) {
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rv = NS_NewSVGDocument(getter_AddRefs(d));
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}
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// XXX Add support for XUL documents.
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else {
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rv = NS_NewXMLDocument(getter_AddRefs(d));
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}
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} else {
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MOZ_ASSERT(aFlavor == DocumentFlavorLegacyGuess);
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rv = NS_NewXMLDocument(getter_AddRefs(d));
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}
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if (NS_FAILED(rv)) {
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return rv;
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}
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if (isHTML) {
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d->SetCompatibilityMode(eCompatibility_FullStandards);
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d->AsHTMLDocument()->SetIsXHTML(isXHTML);
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}
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d->SetLoadedAsData(aLoadedAsData);
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d->SetDocumentURI(aDocumentURI);
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// Must set the principal first, since SetBaseURI checks it.
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d->SetPrincipals(aPrincipal, aPrincipal);
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d->SetBaseURI(aBaseURI);
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// We need to set the script handling object after we set the principal such
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// that the doc group is assigned correctly.
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if (nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(aEventObject)) {
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d->SetScriptHandlingObject(sgo);
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} else if (aEventObject) {
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d->SetScopeObject(aEventObject);
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}
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// XMLDocuments and documents "created in memory" get to be UTF-8 by default,
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// unlike the legacy HTML mess
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d->SetDocumentCharacterSet(UTF_8_ENCODING);
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if (aDoctype) {
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ErrorResult result;
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d->AppendChild(*aDoctype, result);
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// Need to WouldReportJSException() if our callee can throw a JS
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// exception (which it can) and we're neither propagating the
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// error out nor unconditionally suppressing it.
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result.WouldReportJSException();
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if (NS_WARN_IF(result.Failed())) {
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return result.StealNSResult();
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}
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}
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if (!aQualifiedName.IsEmpty()) {
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ErrorResult result;
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ElementCreationOptionsOrString options;
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options.SetAsString();
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nsCOMPtr<Element> root =
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d->CreateElementNS(aNamespaceURI, aQualifiedName, options, result);
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if (NS_WARN_IF(result.Failed())) {
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return result.StealNSResult();
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}
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d->AppendChild(*root, result);
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// Need to WouldReportJSException() if our callee can throw a JS
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// exception (which it can) and we're neither propagating the
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// error out nor unconditionally suppressing it.
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result.WouldReportJSException();
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if (NS_WARN_IF(result.Failed())) {
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return result.StealNSResult();
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}
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}
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d.forget(aInstancePtrResult);
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return NS_OK;
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}
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nsresult NS_NewXMLDocument(Document** aInstancePtrResult, bool aLoadedAsData,
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bool aIsPlainDocument) {
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RefPtr<XMLDocument> doc = new XMLDocument();
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nsresult rv = doc->Init();
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if (NS_FAILED(rv)) {
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*aInstancePtrResult = nullptr;
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return rv;
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}
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doc->SetLoadedAsData(aLoadedAsData);
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doc->mIsPlainDocument = aIsPlainDocument;
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doc.forget(aInstancePtrResult);
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return NS_OK;
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}
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namespace mozilla {
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namespace dom {
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XMLDocument::XMLDocument(const char* aContentType)
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: Document(aContentType),
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mChannelIsPending(false),
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mIsPlainDocument(false),
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mSuppressParserErrorElement(false),
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mSuppressParserErrorConsoleMessages(false) {
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mType = eGenericXML;
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}
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nsresult XMLDocument::Init() {
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nsresult rv = Document::Init();
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NS_ENSURE_SUCCESS(rv, rv);
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return rv;
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}
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void XMLDocument::Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup) {
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Document::Reset(aChannel, aLoadGroup);
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}
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void XMLDocument::ResetToURI(nsIURI* aURI, nsILoadGroup* aLoadGroup,
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nsIPrincipal* aPrincipal,
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nsIPrincipal* aStoragePrincipal) {
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if (mChannelIsPending) {
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StopDocumentLoad();
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mChannel->Cancel(NS_BINDING_ABORTED);
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mChannelIsPending = false;
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}
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Document::ResetToURI(aURI, aLoadGroup, aPrincipal, aStoragePrincipal);
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}
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void XMLDocument::SetSuppressParserErrorElement(bool aSuppress) {
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mSuppressParserErrorElement = aSuppress;
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}
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bool XMLDocument::SuppressParserErrorElement() {
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return mSuppressParserErrorElement;
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}
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void XMLDocument::SetSuppressParserErrorConsoleMessages(bool aSuppress) {
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mSuppressParserErrorConsoleMessages = aSuppress;
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}
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bool XMLDocument::SuppressParserErrorConsoleMessages() {
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return mSuppressParserErrorConsoleMessages;
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}
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nsresult XMLDocument::StartDocumentLoad(const char* aCommand,
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nsIChannel* aChannel,
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nsILoadGroup* aLoadGroup,
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nsISupports* aContainer,
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nsIStreamListener** aDocListener,
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bool aReset, nsIContentSink* aSink) {
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nsresult rv = Document::StartDocumentLoad(
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aCommand, aChannel, aLoadGroup, aContainer, aDocListener, aReset, aSink);
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if (NS_FAILED(rv)) return rv;
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if (nsCRT::strcmp("loadAsInteractiveData", aCommand) == 0) {
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mLoadedAsInteractiveData = true;
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aCommand = kLoadAsData; // XBL, for example, needs scripts and styles
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}
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int32_t charsetSource = kCharsetFromDocTypeDefault;
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NotNull<const Encoding*> encoding = UTF_8_ENCODING;
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TryChannelCharset(aChannel, charsetSource, encoding, nullptr);
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nsCOMPtr<nsIURI> aUrl;
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rv = aChannel->GetURI(getter_AddRefs(aUrl));
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if (NS_FAILED(rv)) return rv;
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static NS_DEFINE_CID(kCParserCID, NS_PARSER_CID);
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mParser = do_CreateInstance(kCParserCID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIXMLContentSink> sink;
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if (aSink) {
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sink = do_QueryInterface(aSink);
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} else {
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nsCOMPtr<nsIDocShell> docShell;
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if (aContainer) {
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docShell = do_QueryInterface(aContainer);
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NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
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}
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rv = NS_NewXMLContentSink(getter_AddRefs(sink), this, aUrl, docShell,
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aChannel);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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// Set the parser as the stream listener for the document loader...
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rv = CallQueryInterface(mParser, aDocListener);
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ASSERTION(mChannel, "How can we not have a channel here?");
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mChannelIsPending = true;
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SetDocumentCharacterSet(encoding);
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mParser->SetDocumentCharset(encoding, charsetSource);
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mParser->SetCommand(aCommand);
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mParser->SetContentSink(sink);
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mParser->Parse(aUrl, nullptr, (void*)this);
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return NS_OK;
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}
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void XMLDocument::EndLoad() {
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mChannelIsPending = false;
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mSynchronousDOMContentLoaded = (mLoadedAsData || mLoadedAsInteractiveData);
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Document::EndLoad();
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if (mSynchronousDOMContentLoaded) {
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mSynchronousDOMContentLoaded = false;
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Document::SetReadyStateInternal(Document::READYSTATE_COMPLETE);
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// Generate a document load event for the case when an XML
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// document was loaded as pure data without any presentation
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// attached to it.
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WidgetEvent event(true, eLoad);
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EventDispatcher::Dispatch(ToSupports(this), nullptr, &event);
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}
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}
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/* virtual */
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void XMLDocument::DocAddSizeOfExcludingThis(nsWindowSizes& aWindowSizes) const {
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Document::DocAddSizeOfExcludingThis(aWindowSizes);
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}
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// Document interface
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nsresult XMLDocument::Clone(dom::NodeInfo* aNodeInfo, nsINode** aResult) const {
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NS_ASSERTION(aNodeInfo->NodeInfoManager() == mNodeInfoManager,
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"Can't import this document into another document!");
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RefPtr<XMLDocument> clone = new XMLDocument();
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nsresult rv = CloneDocHelper(clone);
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NS_ENSURE_SUCCESS(rv, rv);
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// State from XMLDocument
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clone->mIsPlainDocument = mIsPlainDocument;
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clone.forget(aResult);
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return NS_OK;
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}
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JSObject* XMLDocument::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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if (mIsPlainDocument) {
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return Document_Binding::Wrap(aCx, this, aGivenProto);
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}
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return XMLDocument_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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