SVGFilterElement.cpp [plain text]
#include "config.h"
#if ENABLE(FILTERS)
#include "SVGFilterElement.h"
#include "Attr.h"
#include "RenderSVGResourceFilter.h"
#include "SVGElementInstance.h"
#include "SVGFilterBuilder.h"
#include "SVGFilterPrimitiveStandardAttributes.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include "XLinkNames.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
DEFINE_ANIMATED_ENUMERATION(SVGFilterElement, SVGNames::filterUnitsAttr, FilterUnits, filterUnits, SVGUnitTypes::SVGUnitType)
DEFINE_ANIMATED_ENUMERATION(SVGFilterElement, SVGNames::primitiveUnitsAttr, PrimitiveUnits, primitiveUnits, SVGUnitTypes::SVGUnitType)
DEFINE_ANIMATED_LENGTH(SVGFilterElement, SVGNames::xAttr, X, x)
DEFINE_ANIMATED_LENGTH(SVGFilterElement, SVGNames::yAttr, Y, y)
DEFINE_ANIMATED_LENGTH(SVGFilterElement, SVGNames::widthAttr, Width, width)
DEFINE_ANIMATED_LENGTH(SVGFilterElement, SVGNames::heightAttr, Height, height)
DEFINE_ANIMATED_INTEGER_MULTIPLE_WRAPPERS(SVGFilterElement, SVGNames::filterResAttr, filterResXIdentifier(), FilterResX, filterResX)
DEFINE_ANIMATED_INTEGER_MULTIPLE_WRAPPERS(SVGFilterElement, SVGNames::filterResAttr, filterResYIdentifier(), FilterResY, filterResY)
DEFINE_ANIMATED_STRING(SVGFilterElement, XLinkNames::hrefAttr, Href, href)
DEFINE_ANIMATED_BOOLEAN(SVGFilterElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFilterElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(filterUnits)
REGISTER_LOCAL_ANIMATED_PROPERTY(primitiveUnits)
REGISTER_LOCAL_ANIMATED_PROPERTY(x)
REGISTER_LOCAL_ANIMATED_PROPERTY(y)
REGISTER_LOCAL_ANIMATED_PROPERTY(width)
REGISTER_LOCAL_ANIMATED_PROPERTY(height)
REGISTER_LOCAL_ANIMATED_PROPERTY(filterResX)
REGISTER_LOCAL_ANIMATED_PROPERTY(filterResY)
REGISTER_LOCAL_ANIMATED_PROPERTY(href)
REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGFilterElement::SVGFilterElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document)
, m_filterUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
, m_primitiveUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
, m_x(LengthModeWidth, "-10%")
, m_y(LengthModeHeight, "-10%")
, m_width(LengthModeWidth, "120%")
, m_height(LengthModeHeight, "120%")
{
ASSERT(hasTagName(SVGNames::filterTag));
registerAnimatedPropertiesForSVGFilterElement();
}
PassRefPtr<SVGFilterElement> SVGFilterElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGFilterElement(tagName, document));
}
const AtomicString& SVGFilterElement::filterResXIdentifier()
{
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGFilterResX", AtomicString::ConstructFromLiteral));
return s_identifier;
}
const AtomicString& SVGFilterElement::filterResYIdentifier()
{
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGFilterResY", AtomicString::ConstructFromLiteral));
return s_identifier;
}
void SVGFilterElement::setFilterRes(unsigned filterResX, unsigned filterResY)
{
setFilterResXBaseValue(filterResX);
setFilterResYBaseValue(filterResY);
if (RenderObject* object = renderer())
object->setNeedsLayout();
}
bool SVGFilterElement::isSupportedAttribute(const QualifiedName& attrName)
{
static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
if (supportedAttributes.get().isEmpty()) {
SVGURIReference::addSupportedAttributes(supportedAttributes);
SVGLangSpace::addSupportedAttributes(supportedAttributes);
SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
supportedAttributes.get().add(SVGNames::filterUnitsAttr);
supportedAttributes.get().add(SVGNames::primitiveUnitsAttr);
supportedAttributes.get().add(SVGNames::xAttr);
supportedAttributes.get().add(SVGNames::yAttr);
supportedAttributes.get().add(SVGNames::widthAttr);
supportedAttributes.get().add(SVGNames::heightAttr);
supportedAttributes.get().add(SVGNames::filterResAttr);
}
return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
}
void SVGFilterElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
SVGParsingError parseError = NoError;
if (!isSupportedAttribute(name))
SVGElement::parseAttribute(name, value);
else if (name == SVGNames::filterUnitsAttr) {
SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
if (propertyValue > 0)
setFilterUnitsBaseValue(propertyValue);
} else if (name == SVGNames::primitiveUnitsAttr) {
SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
if (propertyValue > 0)
setPrimitiveUnitsBaseValue(propertyValue);
} else if (name == SVGNames::xAttr)
setXBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
else if (name == SVGNames::yAttr)
setYBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
else if (name == SVGNames::widthAttr)
setWidthBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
else if (name == SVGNames::heightAttr)
setHeightBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
else if (name == SVGNames::filterResAttr) {
float x, y;
if (parseNumberOptionalNumber(value, x, y)) {
setFilterResXBaseValue(x);
setFilterResYBaseValue(y);
}
} else if (SVGURIReference::parseAttribute(name, value)
|| SVGLangSpace::parseAttribute(name, value)
|| SVGExternalResourcesRequired::parseAttribute(name, value)) {
} else
ASSERT_NOT_REACHED();
reportAttributeParsingError(parseError, name, value);
}
void SVGFilterElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr)
updateRelativeLengthsInformation();
if (RenderObject* object = renderer())
object->setNeedsLayout();
}
void SVGFilterElement::childrenChanged(const ChildChange& change)
{
SVGElement::childrenChanged(change);
if (change.source == ChildChangeSourceParser)
return;
if (RenderObject* object = renderer())
object->setNeedsLayout();
}
RenderPtr<RenderElement> SVGFilterElement::createElementRenderer(PassRef<RenderStyle> style)
{
return createRenderer<RenderSVGResourceFilter>(*this, WTF::move(style));
}
bool SVGFilterElement::childShouldCreateRenderer(const Node& child) const
{
if (!child.isSVGElement())
return false;
const SVGElement& svgElement = toSVGElement(child);
static NeverDestroyed<HashSet<QualifiedName>> allowedChildElementTags;
if (allowedChildElementTags.get().isEmpty()) {
allowedChildElementTags.get().add(SVGNames::feBlendTag);
allowedChildElementTags.get().add(SVGNames::feColorMatrixTag);
allowedChildElementTags.get().add(SVGNames::feComponentTransferTag);
allowedChildElementTags.get().add(SVGNames::feCompositeTag);
allowedChildElementTags.get().add(SVGNames::feConvolveMatrixTag);
allowedChildElementTags.get().add(SVGNames::feDiffuseLightingTag);
allowedChildElementTags.get().add(SVGNames::feDisplacementMapTag);
allowedChildElementTags.get().add(SVGNames::feDistantLightTag);
allowedChildElementTags.get().add(SVGNames::feDropShadowTag);
allowedChildElementTags.get().add(SVGNames::feFloodTag);
allowedChildElementTags.get().add(SVGNames::feFuncATag);
allowedChildElementTags.get().add(SVGNames::feFuncBTag);
allowedChildElementTags.get().add(SVGNames::feFuncGTag);
allowedChildElementTags.get().add(SVGNames::feFuncRTag);
allowedChildElementTags.get().add(SVGNames::feGaussianBlurTag);
allowedChildElementTags.get().add(SVGNames::feImageTag);
allowedChildElementTags.get().add(SVGNames::feMergeTag);
allowedChildElementTags.get().add(SVGNames::feMergeNodeTag);
allowedChildElementTags.get().add(SVGNames::feMorphologyTag);
allowedChildElementTags.get().add(SVGNames::feOffsetTag);
allowedChildElementTags.get().add(SVGNames::fePointLightTag);
allowedChildElementTags.get().add(SVGNames::feSpecularLightingTag);
allowedChildElementTags.get().add(SVGNames::feSpotLightTag);
allowedChildElementTags.get().add(SVGNames::feTileTag);
allowedChildElementTags.get().add(SVGNames::feTurbulenceTag);
}
return allowedChildElementTags.get().contains<SVGAttributeHashTranslator>(svgElement.tagQName());
}
bool SVGFilterElement::selfHasRelativeLengths() const
{
return x().isRelative()
|| y().isRelative()
|| width().isRelative()
|| height().isRelative();
}
}
#endif