third_party/WebKit/Source/core/svg/SVGTests.cpp

   1 /*
   2  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public License
  16  * along with this library; see the file COPYING.LIB.  If not, write to
  17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 #include "config.h"
  22 #include "core/svg/SVGTests.h"
  23
  24 #include "core/SVGNames.h"
  25 #include "core/svg/SVGElement.h"
  26 #include "platform/Language.h"
  27
  28 namespace blink {
  29
  30 SVGTests::SVGTests(SVGElement* contextElement)
  31     : m_requiredFeatures(SVGStaticStringList::create(contextElement, SVGNames::requiredFeaturesAttr))
  32     , m_requiredExtensions(SVGStaticStringList::create(contextElement, SVGNames::requiredExtensionsAttr))
  33     , m_systemLanguage(SVGStaticStringList::create(contextElement, SVGNames::systemLanguageAttr))
  34 {
  35     ASSERT(contextElement);
  36
  37     contextElement->addToPropertyMap(m_requiredFeatures);
  38     contextElement->addToPropertyMap(m_requiredExtensions);
  39     contextElement->addToPropertyMap(m_systemLanguage);
  40 }
  41
  42 DEFINE_TRACE(SVGTests)
  43 {
  44     visitor->trace(m_requiredFeatures);
  45     visitor->trace(m_requiredExtensions);
  46     visitor->trace(m_systemLanguage);
  47 }
  48
  49 bool SVGTests::hasExtension(const String&)
  50 {
  51     // FIXME: Implement me!
  52     return false;
  53 }
  54
  55 bool SVGTests::isValid(Document& document) const
  56 {
  57     // No need to check requiredFeatures since hasFeature always returns true.
  58
  59     if (m_systemLanguage->isSpecified()) {
  60         bool matchFound = false;
  61
  62         const Vector<String>& systemLanguage = m_systemLanguage->value()->values();
  63         for (const auto& value : systemLanguage) {
  64             if (value == defaultLanguage().string().substring(0, 2)) {
  65                 matchFound = true;
  66                 break;
  67             }
  68         }
  69
  70         if (!matchFound)
  71             return false;
  72     }
  73
  74     if (!m_requiredExtensions->value()->values().isEmpty())
  75         return false;
  76
  77     return true;
  78 }
  79
  80 bool SVGTests::parseAttribute(const QualifiedName& name, const AtomicString& value)
  81 {
  82     // FIXME: Should handle exceptions here.
  83     // This is safe as of now, as the current impl of SVGStringList::setValueAsString never fails.
  84     SVGParsingError parseError = NoError;
  85
  86     if (name == SVGNames::requiredFeaturesAttr)
  87         m_requiredFeatures->setBaseValueAsString(value, parseError);
  88     else if (name == SVGNames::requiredExtensionsAttr)
  89         m_requiredExtensions->setBaseValueAsString(value, parseError);
  90     else if (name == SVGNames::systemLanguageAttr)
  91         m_systemLanguage->setBaseValueAsString(value, parseError);
  92     else
  93         return false;
  94
  95     ASSERT(parseError == NoError);
  96
  97     return true;
  98 }
  99
 100 bool SVGTests::isKnownAttribute(const QualifiedName& attrName)
 101 {
 102     return attrName == SVGNames::requiredFeaturesAttr
 103         || attrName == SVGNames::requiredExtensionsAttr
 104         || attrName == SVGNames::systemLanguageAttr;
 105 }
 106
 107 void SVGTests::addSupportedAttributes(HashSet<QualifiedName>& supportedAttributes)
 108 {
 109     supportedAttributes.add(SVGNames::requiredFeaturesAttr);
 110     supportedAttributes.add(SVGNames::requiredExtensionsAttr);
 111     supportedAttributes.add(SVGNames::systemLanguageAttr);
 112 }
 113
 114 }