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/*
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
* Copyright (C) 2014 Adobe Systems Incorporated. All rights reserved.
* Copyright (C) 2018-2019 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 "SVGPatternElement.h"
#include "AffineTransform.h"
#include "Document.h"
#include "FloatConversion.h"
#include "GraphicsContext.h"
#include "ImageBuffer.h"
#include "PatternAttributes.h"
#include "RenderSVGContainer.h"
#include "RenderSVGResourcePattern.h"
#include "SVGFitToViewBox.h"
#include "SVGGraphicsElement.h"
#include "SVGNames.h"
#include "SVGRenderSupport.h"
#include "SVGStringList.h"
#include "SVGTransformable.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/NeverDestroyed.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGPatternElement);
inline SVGPatternElement::SVGPatternElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document)
, SVGExternalResourcesRequired(this)
, SVGFitToViewBox(this)
, SVGTests(this)
, SVGURIReference(this)
{
ASSERT(hasTagName(SVGNames::patternTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::xAttr, &SVGPatternElement::m_x>();
PropertyRegistry::registerProperty<SVGNames::yAttr, &SVGPatternElement::m_y>();
PropertyRegistry::registerProperty<SVGNames::widthAttr, &SVGPatternElement::m_width>();
PropertyRegistry::registerProperty<SVGNames::heightAttr, &SVGPatternElement::m_height>();
PropertyRegistry::registerProperty<SVGNames::patternUnitsAttr, SVGUnitTypes::SVGUnitType, &SVGPatternElement::m_patternUnits>();
PropertyRegistry::registerProperty<SVGNames::patternContentUnitsAttr, SVGUnitTypes::SVGUnitType, &SVGPatternElement::m_patternContentUnits>();
PropertyRegistry::registerProperty<SVGNames::patternTransformAttr, &SVGPatternElement::m_patternTransform>();
});
}
Ref<SVGPatternElement> SVGPatternElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGPatternElement(tagName, document));
}
void SVGPatternElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == SVGNames::patternUnitsAttr) {
auto propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
if (propertyValue > 0)
m_patternUnits->setBaseValInternal<SVGUnitTypes::SVGUnitType>(propertyValue);
return;
}
if (name == SVGNames::patternContentUnitsAttr) {
auto propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
if (propertyValue > 0)
m_patternContentUnits->setBaseValInternal<SVGUnitTypes::SVGUnitType>(propertyValue);
return;
}
if (name == SVGNames::patternTransformAttr) {
m_patternTransform->baseVal()->parse(value);
return;
}
SVGParsingError parseError = NoError;
if (name == SVGNames::xAttr)
m_x->setBaseValInternal(SVGLengthValue::construct(LengthModeWidth, value, parseError));
else if (name == SVGNames::yAttr)
m_y->setBaseValInternal(SVGLengthValue::construct(LengthModeHeight, value, parseError));
else if (name == SVGNames::widthAttr)
m_width->setBaseValInternal(SVGLengthValue::construct(LengthModeWidth, value, parseError, ForbidNegativeLengths));
else if (name == SVGNames::heightAttr)
m_height->setBaseValInternal(SVGLengthValue::construct(LengthModeHeight, value, parseError, ForbidNegativeLengths));
reportAttributeParsingError(parseError, name, value);
SVGElement::parseAttribute(name, value);
SVGURIReference::parseAttribute(name, value);
SVGTests::parseAttribute(name, value);
SVGExternalResourcesRequired::parseAttribute(name, value);
SVGFitToViewBox::parseAttribute(name, value);
}
void SVGPatternElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isAnimatedLengthAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
invalidateSVGPresentationAttributeStyle();
return;
}
if (PropertyRegistry::isKnownAttribute(attrName) || SVGFitToViewBox::isKnownAttribute(attrName) || SVGURIReference::isKnownAttribute(attrName)) {
if (RenderObject* object = renderer())
object->setNeedsLayout();
return;
}
SVGElement::svgAttributeChanged(attrName);
SVGExternalResourcesRequired::svgAttributeChanged(attrName);
}
void SVGPatternElement::childrenChanged(const ChildChange& change)
{
SVGElement::childrenChanged(change);
if (change.source == ChildChangeSource::Parser)
return;
if (RenderObject* object = renderer())
object->setNeedsLayout();
}
RenderPtr<RenderElement> SVGPatternElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
return createRenderer<RenderSVGResourcePattern>(*this, WTFMove(style));
}
void SVGPatternElement::collectPatternAttributes(PatternAttributes& attributes) const
{
if (!attributes.hasX() && hasAttribute(SVGNames::xAttr))
attributes.setX(x());
if (!attributes.hasY() && hasAttribute(SVGNames::yAttr))
attributes.setY(y());
if (!attributes.hasWidth() && hasAttribute(SVGNames::widthAttr))
attributes.setWidth(width());
if (!attributes.hasHeight() && hasAttribute(SVGNames::heightAttr))
attributes.setHeight(height());
if (!attributes.hasViewBox() && hasAttribute(SVGNames::viewBoxAttr) && hasValidViewBox())
attributes.setViewBox(viewBox());
if (!attributes.hasPreserveAspectRatio() && hasAttribute(SVGNames::preserveAspectRatioAttr))
attributes.setPreserveAspectRatio(preserveAspectRatio());
if (!attributes.hasPatternUnits() && hasAttribute(SVGNames::patternUnitsAttr))
attributes.setPatternUnits(patternUnits());
if (!attributes.hasPatternContentUnits() && hasAttribute(SVGNames::patternContentUnitsAttr))
attributes.setPatternContentUnits(patternContentUnits());
if (!attributes.hasPatternTransform() && hasAttribute(SVGNames::patternTransformAttr))
attributes.setPatternTransform(patternTransform().concatenate());
if (!attributes.hasPatternContentElement() && childElementCount())
attributes.setPatternContentElement(this);
}
AffineTransform SVGPatternElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope) const
{
return patternTransform().concatenate();
}
}