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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 2009-2010. All rights reserved.
* Copyright (C) 2018-2019 Apple Inc. All rights reserved.
* Copyright (C) 2024 Igalia S.L.
*
* 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 "SVGMarkerElement.h"
#include "LegacyRenderSVGResourceMarker.h"
#include "NodeName.h"
#include "RenderSVGResourceMarker.h"
#include "SVGNames.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(SVGMarkerElement);
inline SVGMarkerElement::SVGMarkerElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document, makeUniqueRef<PropertyRegistry>(*this))
, SVGFitToViewBox(this)
{
// Spec: If the markerWidth/markerHeight attribute is not specified, the effect is as if a value of "3" were specified.
ASSERT(hasTagName(SVGNames::markerTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::refXAttr, &SVGMarkerElement::m_refX>();
PropertyRegistry::registerProperty<SVGNames::refYAttr, &SVGMarkerElement::m_refY>();
PropertyRegistry::registerProperty<SVGNames::markerWidthAttr, &SVGMarkerElement::m_markerWidth>();
PropertyRegistry::registerProperty<SVGNames::markerHeightAttr, &SVGMarkerElement::m_markerHeight>();
PropertyRegistry::registerProperty<SVGNames::markerUnitsAttr, SVGMarkerUnitsType, &SVGMarkerElement::m_markerUnits>();
PropertyRegistry::registerProperty<SVGNames::orientAttr, &SVGMarkerElement::m_orientAngle, &SVGMarkerElement::m_orientType>();
});
}
Ref<SVGMarkerElement> SVGMarkerElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGMarkerElement(tagName, document));
}
AffineTransform SVGMarkerElement::viewBoxToViewTransform(float viewWidth, float viewHeight) const
{
return SVGFitToViewBox::viewBoxToViewTransform(viewBox(), preserveAspectRatio(), viewWidth, viewHeight);
}
void SVGMarkerElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason attributeModificationReason)
{
SVGParsingError parseError = NoError;
switch (name.nodeName()) {
case AttributeNames::markerUnitsAttr: {
auto propertyValue = SVGPropertyTraits<SVGMarkerUnitsType>::fromString(newValue);
if (propertyValue > 0)
Ref { m_markerUnits }->setBaseValInternal<SVGMarkerUnitsType>(propertyValue);
return;
}
case AttributeNames::orientAttr: {
auto pair = SVGPropertyTraits<std::pair<SVGAngleValue, SVGMarkerOrientType>>::fromString(newValue);
Ref { m_orientAngle }->setBaseValInternal(pair.first);
Ref { m_orientType }->setBaseValInternal(pair.second);
return;
}
case AttributeNames::refXAttr:
Ref { m_refX }->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Width, newValue, parseError));
break;
case AttributeNames::refYAttr:
Ref { m_refY }->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Height, newValue, parseError));
break;
case AttributeNames::markerWidthAttr:
Ref { m_markerWidth }->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Width, newValue, parseError));
break;
case AttributeNames::markerHeightAttr:
Ref { m_markerHeight }->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Height, newValue, parseError));
break;
default:
break;
}
reportAttributeParsingError(parseError, name, newValue);
SVGFitToViewBox::parseAttribute(name, newValue);
SVGElement::attributeChanged(name, oldValue, newValue, attributeModificationReason);
}
void SVGMarkerElement::invalidateMarkerResource()
{
if (document().settings().layerBasedSVGEngineEnabled()) {
if (CheckedPtr markerRenderer = dynamicDowncast<RenderSVGResourceMarker>(renderer()))
markerRenderer->invalidateMarker();
return;
}
updateSVGRendererForElementChange();
}
void SVGMarkerElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isKnownAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
if (PropertyRegistry::isAnimatedLengthAttribute(attrName))
updateRelativeLengthsInformation();
// These properties affect the layout of the RenderSVGResourceMarker itself (due to viewBox + overflowClipRect handling).
if (attrName == SVGNames::markerWidthAttr || attrName == SVGNames::markerHeightAttr)
updateSVGRendererForElementChange();
else
invalidateMarkerResource();
return;
}
if (SVGFitToViewBox::isKnownAttribute(attrName)) {
updateSVGRendererForElementChange();
return;
}
SVGElement::svgAttributeChanged(attrName);
}
void SVGMarkerElement::childrenChanged(const ChildChange& change)
{
SVGElement::childrenChanged(change);
if (change.source == ChildChange::Source::Parser)
return;
invalidateMarkerResource();
}
AtomString SVGMarkerElement::orient() const
{
return getAttribute(SVGNames::orientAttr);
}
void SVGMarkerElement::setOrient(const AtomString& orient)
{
setAttribute(SVGNames::orientAttr, orient);
}
void SVGMarkerElement::setOrientToAuto()
{
Ref { m_orientType }->setBaseVal(SVGMarkerOrientAuto);
invalidateMarkerResource();
}
void SVGMarkerElement::setOrientToAngle(const SVGAngle& angle)
{
Ref { m_orientAngle }->baseVal()->newValueSpecifiedUnits(angle.unitType(), angle.valueInSpecifiedUnits());
invalidateMarkerResource();
}
RenderPtr<RenderElement> SVGMarkerElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
if (document().settings().layerBasedSVGEngineEnabled())
return createRenderer<RenderSVGResourceMarker>(*this, WTFMove(style));
return createRenderer<LegacyRenderSVGResourceMarker>(*this, WTFMove(style));
}
bool SVGMarkerElement::selfHasRelativeLengths() const
{
return refX().isRelative()
|| refY().isRelative()
|| markerWidth().isRelative()
|| markerHeight().isRelative();
}
}
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