Add support for DOM4's XMLDocument interface

Source/core/dom/DOMImplementation.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 18 matching lines @@
 #include "SVGNames.h"
 #include "bindings/v8/ExceptionState.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/MediaList.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/DocumentInit.h"
 #include "core/dom/DocumentType.h"
 #include "core/dom/Element.h"
 #include "core/dom/ExceptionCode.h"
+#include "core/dom/XMLDocument.h"
 #include "core/dom/custom/CustomElementRegistrationContext.h"
 #include "core/html/HTMLDocument.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/HTMLViewSourceDocument.h"
 #include "core/html/ImageDocument.h"
 #include "core/html/MediaDocument.h"
 #include "core/html/PluginDocument.h"
 #include "core/html/TextDocument.h"
 #include "core/loader/FrameLoader.h"
 #include "core/frame/Frame.h"
@@ skipping 146 matching lines @@
         return 0;
 
     return DocumentType::create(&m_document, qualifiedName, publicId, systemId);
 }
 
 DOMImplementation* DOMImplementation::getInterface(const String& /*feature*/)
 {
     return 0;
 }
 
-PassRefPtr<Document> DOMImplementation::createDocument(const AtomicString& namespaceURI,
+PassRefPtr<XMLDocument> DOMImplementation::createDocument(const AtomicString& namespaceURI,
     const AtomicString& qualifiedName, DocumentType* doctype, ExceptionState& exceptionState)
 {
-    RefPtr<Document> doc;
+    RefPtr<XMLDocument> doc;
     DocumentInit init = DocumentInit::fromContext(m_document.contextDocument());
     if (namespaceURI == SVGNames::svgNamespaceURI) {
+        // FIXME: This should be an XMLDocument as per DOM4 but we need to get rid of SVGDocument first.
+        // SVGDocument no longer exists in SVG2.
         doc = SVGDocument::create(init);
     } else if (namespaceURI == HTMLNames::xhtmlNamespaceURI) {
-        doc = Document::createXHTML(init.withRegistrationContext(m_document.registrationContext()));
+        doc = XMLDocument::createXHTML(init.withRegistrationContext(m_document.registrationContext()));
     } else {
-        doc = Document::create(init);
+        doc = XMLDocument::create(init);
     }
 
     doc->setSecurityOrigin(m_document.securityOrigin()->isolatedCopy());
     doc->setContextFeatures(m_document.contextFeatures());
 
     RefPtr<Node> documentElement;
     if (!qualifiedName.isEmpty()) {
         documentElement = doc->createElementNS(namespaceURI, qualifiedName, exceptionState);
         if (exceptionState.hadException())
             return 0;
@@ skipping 127 matching lines @@
 
 PassRefPtr<Document> DOMImplementation::createDocument(const String& type, const DocumentInit& init, bool inViewSourceMode)
 {
     if (inViewSourceMode)
         return HTMLViewSourceDocument::create(init, type);
 
     // Plugins cannot take HTML and XHTML from us, and we don't even need to initialize the plugin database for those.
     if (type == "text/html")
         return HTMLDocument::create(init);
     if (type == "application/xhtml+xml")
-        return Document::createXHTML(init);
+        return XMLDocument::createXHTML(init);
 
     PluginData* pluginData = 0;
     if (init.frame() && init.frame()->page() && init.frame()->loader().allowPlugins(NotAboutToInstantiatePlugin))
         pluginData = init.frame()->page()->pluginData();
 
     // PDF is one image type for which a plugin can override built-in support.
     // We do not want QuickTime to take over all image types, obviously.
     if ((type == "application/pdf" || type == "text/pdf") && pluginData && pluginData->supportsMimeType(type))
         return PluginDocument::create(init);
     if (Image::supportsType(type))
         return ImageDocument::create(init);
 
     // Check to see if the type can be played by our MediaPlayer, if so create a MediaDocument
     if (HTMLMediaElement::supportsType(ContentType(type)))
         return MediaDocument::create(init);
 
     // Everything else except text/plain can be overridden by plugins. In particular, Adobe SVG Viewer should be used for SVG, if installed.
     // Disallowing plug-ins to use text/plain prevents plug-ins from hijacking a fundamental type that the browser is expected to handle,
     // and also serves as an optimization to prevent loading the plug-in database in the common case.
     if (type != "text/plain" && pluginData && pluginData->supportsMimeType(type))
         return PluginDocument::create(init);
     if (isTextMIMEType(type))
         return TextDocument::create(init);
     if (type == "image/svg+xml")
         return SVGDocument::create(init);
     if (isXMLMIMEType(type))
-        return Document::create(init);
+        return XMLDocument::create(init);
 
     return HTMLDocument::create(init);
 }
 
 }