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/*
* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
* Copyright (C) 2014 Adobe Systems Incorporated. All rights reserved.
* Copyright (C) 2018-2022 Apple Inc. All rights 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 "SVGFEBlendElement.h"
#include "FEBlend.h"
#include "NodeName.h"
#include "SVGNames.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(SVGFEBlendElement);
inline SVGFEBlendElement::SVGFEBlendElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document, makeUniqueRef<PropertyRegistry>(*this))
{
ASSERT(hasTagName(SVGNames::feBlendTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::modeAttr, BlendMode, &SVGFEBlendElement::m_mode>();
PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEBlendElement::m_in1>();
PropertyRegistry::registerProperty<SVGNames::in2Attr, &SVGFEBlendElement::m_in2>();
});
}
Ref<SVGFEBlendElement> SVGFEBlendElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEBlendElement(tagName, document));
}
void SVGFEBlendElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason attributeModificationReason)
{
switch (name.nodeName()) {
case AttributeNames::modeAttr: {
BlendMode mode = BlendMode::Normal;
if (parseBlendMode(newValue, mode))
Ref { m_mode }->setBaseValInternal<BlendMode>(mode);
break;
}
case AttributeNames::inAttr:
Ref { m_in1 }->setBaseValInternal(newValue);
break;
case AttributeNames::in2Attr:
Ref { m_in2 }->setBaseValInternal(newValue);
break;
default:
break;
}
SVGFilterPrimitiveStandardAttributes::attributeChanged(name, oldValue, newValue, attributeModificationReason);
}
bool SVGFEBlendElement::setFilterEffectAttribute(FilterEffect& effect, const QualifiedName& attrName)
{
auto& feBlend = downcast<FEBlend>(effect);
if (attrName == SVGNames::modeAttr)
return feBlend.setBlendMode(mode());
ASSERT_NOT_REACHED();
return false;
}
void SVGFEBlendElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isKnownAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
if (attrName == SVGNames::modeAttr)
primitiveAttributeChanged(attrName);
else {
ASSERT(attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr);
updateSVGRendererForElementChange();
}
return;
}
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
}
RefPtr<FilterEffect> SVGFEBlendElement::createFilterEffect(const FilterEffectVector&, const GraphicsContext&) const
{
return FEBlend::create(mode());
}
} // namespace WebCore
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