| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com> |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
| * Copyright (C) 2014 Adobe Systems Incorporated. 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 "SVGFilterElement.h" |
| |
| #include "RenderSVGResourceFilter.h" |
| #include "SVGFilterBuilder.h" |
| #include "SVGFilterPrimitiveStandardAttributes.h" |
| #include "SVGNames.h" |
| #include "SVGParserUtilities.h" |
| #include "XLinkNames.h" |
| #include <wtf/IsoMallocInlines.h> |
| #include <wtf/NeverDestroyed.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFilterElement); |
| |
| // Animated property definitions |
| 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%") |
| { |
| // Spec: If the x/y attribute is not specified, the effect is as if a value of "-10%" were specified. |
| // Spec: If the width/height attribute is not specified, the effect is as if a value of "120%" were specified. |
| ASSERT(hasTagName(SVGNames::filterTag)); |
| registerAnimatedPropertiesForSVGFilterElement(); |
| } |
| |
| Ref<SVGFilterElement> SVGFilterElement::create(const QualifiedName& tagName, Document& document) |
| { |
| return adoptRef(*new SVGFilterElement(tagName, document)); |
| } |
| |
| const AtomicString& SVGFilterElement::filterResXIdentifier() |
| { |
| static NeverDestroyed<AtomicString> s_identifier("SVGFilterResX", AtomicString::ConstructFromLiteral); |
| return s_identifier; |
| } |
| |
| const AtomicString& SVGFilterElement::filterResYIdentifier() |
| { |
| static NeverDestroyed<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 const auto supportedAttributes = makeNeverDestroyed([] { |
| HashSet<QualifiedName> set; |
| SVGURIReference::addSupportedAttributes(set); |
| SVGLangSpace::addSupportedAttributes(set); |
| SVGExternalResourcesRequired::addSupportedAttributes(set); |
| set.add({ |
| SVGNames::filterUnitsAttr.get(), |
| SVGNames::primitiveUnitsAttr.get(), |
| SVGNames::xAttr.get(), |
| SVGNames::yAttr.get(), |
| SVGNames::widthAttr.get(), |
| SVGNames::heightAttr.get(), |
| SVGNames::filterResAttr.get(), |
| }); |
| return set; |
| }()); |
| return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName); |
| } |
| |
| void SVGFilterElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| SVGParsingError parseError = NoError; |
| |
| 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(SVGLengthValue::construct(LengthModeWidth, value, parseError)); |
| else if (name == SVGNames::yAttr) |
| setYBaseValue(SVGLengthValue::construct(LengthModeHeight, value, parseError)); |
| else if (name == SVGNames::widthAttr) |
| setWidthBaseValue(SVGLengthValue::construct(LengthModeWidth, value, parseError)); |
| else if (name == SVGNames::heightAttr) |
| setHeightBaseValue(SVGLengthValue::construct(LengthModeHeight, value, parseError)); |
| else if (name == SVGNames::filterResAttr) { |
| float x, y; |
| if (parseNumberOptionalNumber(value, x, y)) { |
| setFilterResXBaseValue(x); |
| setFilterResYBaseValue(y); |
| } |
| } |
| |
| reportAttributeParsingError(parseError, name, value); |
| |
| SVGElement::parseAttribute(name, value); |
| SVGURIReference::parseAttribute(name, value); |
| SVGExternalResourcesRequired::parseAttribute(name, value); |
| } |
| |
| void SVGFilterElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (!isSupportedAttribute(attrName)) { |
| SVGElement::svgAttributeChanged(attrName); |
| return; |
| } |
| |
| InstanceInvalidationGuard guard(*this); |
| |
| if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr || attrName == SVGNames::widthAttr || attrName == SVGNames::heightAttr) { |
| invalidateSVGPresentationAttributeStyle(); |
| return; |
| } |
| |
| if (auto* renderer = this->renderer()) |
| renderer->setNeedsLayout(); |
| } |
| |
| void SVGFilterElement::childrenChanged(const ChildChange& change) |
| { |
| SVGElement::childrenChanged(change); |
| |
| if (change.source == ChildChangeSource::Parser) |
| return; |
| |
| if (RenderObject* object = renderer()) |
| object->setNeedsLayout(); |
| } |
| |
| RenderPtr<RenderElement> SVGFilterElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&) |
| { |
| return createRenderer<RenderSVGResourceFilter>(*this, WTFMove(style)); |
| } |
| |
| bool SVGFilterElement::childShouldCreateRenderer(const Node& child) const |
| { |
| if (!child.isSVGElement()) |
| return false; |
| |
| const SVGElement& svgElement = downcast<SVGElement>(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()); |
| } |
| |
| } |