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/*
* Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
* Copyright (C) 2015-2024 Apple Inc. All right reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "SVGTests.h"
#include "EventTarget.h"
#include "HTMLNames.h"
#include "NodeName.h"
#include "SVGElement.h"
#include "SVGNames.h"
#include "SVGStringList.h"
#include <wtf/Language.h>
#include <wtf/SortedArrayMap.h>
#include <wtf/TZoneMallocInlines.h>
#if ENABLE(MATHML)
#include "MathMLNames.h"
#endif
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(SVGConditionalProcessingAttributes);
SVGConditionalProcessingAttributes::SVGConditionalProcessingAttributes(SVGElement& contextElement)
: m_requiredExtensions(SVGStringList::create(&contextElement))
, m_systemLanguage(SVGStringList::create(&contextElement))
{
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
SVGTests::PropertyRegistry::registerConditionalProcessingAttributeProperty<SVGNames::requiredExtensionsAttr, &SVGConditionalProcessingAttributes::m_requiredExtensions>();
SVGTests::PropertyRegistry::registerConditionalProcessingAttributeProperty<SVGNames::systemLanguageAttr, &SVGConditionalProcessingAttributes::m_systemLanguage>();
});
}
SVGTests::SVGTests(SVGElement* contextElement)
: m_contextElement(*contextElement)
{
}
bool SVGTests::hasExtension(const String& extension)
{
// We recognize XHTML and MathML, as implemented in Gecko and suggested in the SVG Tiny
// recommendation (http://www.w3.org/TR/SVG11/struct.html#RequiredExtensionsAttribute).
#if ENABLE(MATHML)
if (extension == MathMLNames::mathmlNamespaceURI)
return true;
#endif
return extension == HTMLNames::xhtmlNamespaceURI;
}
bool SVGTests::isValid() const
{
auto attributes = conditionalProcessingAttributesIfExists();
if (!attributes)
return true;
String defaultLanguage = WTF::defaultLanguage();
auto genericDefaultLanguage = StringView(defaultLanguage).left(2);
for (auto& language : attributes->systemLanguage().items()) {
if (language != genericDefaultLanguage)
return false;
}
for (auto& extension : attributes->requiredExtensions().items()) {
if (!hasExtension(extension))
return false;
}
return true;
}
Ref<SVGStringList> SVGTests::protectedRequiredExtensions()
{
return requiredExtensions();
}
Ref<SVGStringList> SVGTests::protectedSystemLanguage()
{
return systemLanguage();
}
void SVGTests::parseAttribute(const QualifiedName& attributeName, const AtomString& value)
{
switch (attributeName.nodeName()) {
case AttributeNames::requiredExtensionsAttr:
protectedRequiredExtensions()->reset(value);
break;
case AttributeNames::systemLanguageAttr:
protectedSystemLanguage()->reset(value);
break;
default:
break;
}
}
void SVGTests::svgAttributeChanged(const QualifiedName& attrName)
{
if (!PropertyRegistry::isKnownAttribute(attrName))
return;
Ref contextElement = m_contextElement.get();
if (!contextElement->isConnected())
return;
contextElement->invalidateStyleAndRenderersForSubtree();
}
void SVGTests::addSupportedAttributes(MemoryCompactLookupOnlyRobinHoodHashSet<QualifiedName>& supportedAttributes)
{
supportedAttributes.add(SVGNames::requiredExtensionsAttr);
supportedAttributes.add(SVGNames::systemLanguageAttr);
}
Ref<SVGElement> SVGTests::protectedContextElement() const
{
return m_contextElement.get();
}
SVGConditionalProcessingAttributes& SVGTests::conditionalProcessingAttributes()
{
Ref<SVGElement> contextElement = m_contextElement.get();
return contextElement->conditionalProcessingAttributes();
}
SVGConditionalProcessingAttributes* SVGTests::conditionalProcessingAttributesIfExists() const
{
return protectedContextElement()->conditionalProcessingAttributesIfExists();
}
} // namespace WebCore
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