Make DOMImplementation::hasFeature() behave according to specification

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 45 matching lines @@
 
 namespace WebCore {
 
 typedef HashSet<String, CaseFoldingHash> FeatureSet;
 
 static void addString(FeatureSet& set, const char* string)
 {
     set.add(string);
 }
 
-static bool isSVG10Feature(const String &feature, const String &version)
+static bool isSupportedSVG10Feature(const String& feature, const String& version)
 {
     if (!version.isEmpty() && version != "1.0")
         return false;
 
     static bool initialized = false;
     DEFINE_STATIC_LOCAL(FeatureSet, svgFeatures, ());
     if (!initialized) {
 #if ENABLE(SVG_FONTS)
         addString(svgFeatures, "svg");
         addString(svgFeatures, "svg.static");
 #endif
 //      addString(svgFeatures, "svg.animation");
 //      addString(svgFeatures, "svg.dynamic");
 //      addString(svgFeatures, "svg.dom.animation");
 //      addString(svgFeatures, "svg.dom.dynamic");
 #if ENABLE(SVG_FONTS)
         addString(svgFeatures, "dom");
         addString(svgFeatures, "dom.svg");
         addString(svgFeatures, "dom.svg.static");
 #endif
 //      addString(svgFeatures, "svg.all");
 //      addString(svgFeatures, "dom.svg.all");
         initialized = true;
     }
     return feature.startsWith("org.w3c.", false)
         && svgFeatures.contains(feature.right(feature.length() - 8));
 }
 
-static bool isSVG11Feature(const String &feature, const String &version)
+static bool isSupportedSVG11Feature(const String& feature, const String& version)
 {
     if (!version.isEmpty() && version != "1.1")
         return false;
 
     static bool initialized = false;
     DEFINE_STATIC_LOCAL(FeatureSet, svgFeatures, ());
     if (!initialized) {
         // Sadly, we cannot claim to implement any of the SVG 1.1 generic feature sets
         // lack of Font and Filter support.
         // http://bugs.webkit.org/show_bug.cgi?id=15480
@@ skipping 46 matching lines @@
         addString(svgFeatures, "Font");
         addString(svgFeatures, "BasicFont");
 #endif
         addString(svgFeatures, "Extensibility");
         initialized = true;
     }
     return feature.startsWith("http://www.w3.org/tr/svg11/feature#", false)
         && svgFeatures.contains(feature.right(feature.length() - 35));
 }
 
-static bool isEvents2Feature(const String &feature, const String &version)
-{
-    if (!version.isEmpty() && version != "2.0")
-        return false;
-
-    static bool initialized = false;
-    DEFINE_STATIC_LOCAL(FeatureSet, events2Features, ());
-    if (!initialized) {
-        addString(events2Features, "Events");
-        addString(events2Features, "HTMLEvents");
-        addString(events2Features, "MouseEvents");
-        addString(events2Features, "MutationEvents");
-        addString(events2Features, "UIEvents");
-        initialized = true;
-    }
-    return events2Features.contains(feature);
-}
-
-static bool isEvents3Feature(const String &feature, const String &version)
-{
-    if (!version.isEmpty() && version != "3.0")
-        return false;
-
-    static bool initialized = false;
-    DEFINE_STATIC_LOCAL(FeatureSet, events3Features, ());
-    if (!initialized) {
-        // FIXME: We probably support many of these features.
-//        addString(events3Features, "CompositionEvents");
-//        addString(events3Features, "Events");
-//        addString(events3Features, "FocusEvents");
-//        addString(events3Features, "HTMLEvents");
-//        addString(events3Features, "KeyboardEvents");
-//        addString(events3Features, "MouseEvents");
-//        addString(events3Features, "MutationEvents");
-//        addString(events3Features, "MutationNameEvents");
-        addString(events3Features, "TextEvents");
-//        addString(events3Features, "UIEvents");
-//        addString(events3Features, "WheelEvents");
-        initialized = true;
-    }
-    // FIXME: We do not yet support Events 3 "extended feature strings".
-    return events3Features.contains(feature);
-}
-
 DOMImplementation::DOMImplementation(Document* document)
     : m_document(document)
 {
     ScriptWrappable::init(this);
 }
 
 bool DOMImplementation::hasFeature(const String& feature, const String& version)
 {
-    String lower = feature.lower();
-    if (lower == "core" || lower == "html" || lower == "xml" || lower == "xhtml")
-        return version.isEmpty() || version == "1.0" || version == "2.0";
-    if (lower == "css"
-            || lower == "css2"
-            || lower == "range"
-            || lower == "stylesheets"
-            || lower == "traversal"
-            || lower == "views")
-        return version.isEmpty() || version == "2.0";
-    if (isEvents2Feature(feature, version))
-        return true;
-    if (lower == "xpath")
-        return version.isEmpty() || version == "3.0";
-    if (isEvents3Feature(feature, version))
-        return true;
-
-    if (isSVG11Feature(feature, version))
-        return true;
-    if (isSVG10Feature(feature, version))
-        return true;
-
-    return false;
+    if (feature.startsWith("http://www.w3.org/TR/SVG", false)
+    || feature.startsWith("org.w3c.dom.svg", false)
+    || feature.startsWith("org.w3c.svg", false)) {
+        // FIXME: SVG 2.0 support?
+        return isSupportedSVG10Feature(feature, version) || isSupportedSVG11Feature(feature, version);
+    }
+    return true;
 }
 
 PassRefPtr<DocumentType> DOMImplementation::createDocumentType(const String& qualifiedName,
     const String& publicId, const String& systemId, ExceptionCode& ec)
 {
     String prefix, localName;
     if (!Document::parseQualifiedName(qualifiedName, prefix, localName, ec))
         return 0;
 
     return DocumentType::create(0, qualifiedName, publicId, systemId);
@@ skipping 171 matching lines @@
         return TextDocument::create(DocumentInit(url, frame));
     if (type == "image/svg+xml")
         return SVGDocument::create(DocumentInit(url, frame));
     if (isXMLMIMEType(type))
         return Document::create(DocumentInit(url, frame));
 
     return HTMLDocument::create(DocumentInit(url, frame));
 }
 
 }