| /* |
| * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
| * Copyright (C) 2010 Dirk Schulze <krit@webkit.org> |
| * |
| * 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 "SVGFEImageElement.h" |
| |
| #include "CachedImage.h" |
| #include "CachedResourceLoader.h" |
| #include "CachedResourceRequest.h" |
| #include "Document.h" |
| #include "Image.h" |
| #include "RenderObject.h" |
| #include "RenderSVGResource.h" |
| #include "SVGNames.h" |
| #include "SVGPreserveAspectRatioValue.h" |
| #include "XLinkNames.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEImageElement); |
| |
| // Animated property definitions |
| DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGFEImageElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio) |
| DEFINE_ANIMATED_STRING(SVGFEImageElement, XLinkNames::hrefAttr, Href, href) |
| DEFINE_ANIMATED_BOOLEAN(SVGFEImageElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired) |
| |
| BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEImageElement) |
| REGISTER_LOCAL_ANIMATED_PROPERTY(preserveAspectRatio) |
| REGISTER_LOCAL_ANIMATED_PROPERTY(href) |
| REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired) |
| REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes) |
| END_REGISTER_ANIMATED_PROPERTIES |
| |
| inline SVGFEImageElement::SVGFEImageElement(const QualifiedName& tagName, Document& document) |
| : SVGFilterPrimitiveStandardAttributes(tagName, document) |
| { |
| ASSERT(hasTagName(SVGNames::feImageTag)); |
| registerAnimatedPropertiesForSVGFEImageElement(); |
| } |
| |
| Ref<SVGFEImageElement> SVGFEImageElement::create(const QualifiedName& tagName, Document& document) |
| { |
| return adoptRef(*new SVGFEImageElement(tagName, document)); |
| } |
| |
| SVGFEImageElement::~SVGFEImageElement() |
| { |
| clearResourceReferences(); |
| } |
| |
| bool SVGFEImageElement::hasSingleSecurityOrigin() const |
| { |
| if (!m_cachedImage) |
| return true; |
| auto* image = m_cachedImage->image(); |
| return !image || image->hasSingleSecurityOrigin(); |
| } |
| |
| void SVGFEImageElement::clearResourceReferences() |
| { |
| if (m_cachedImage) { |
| m_cachedImage->removeClient(*this); |
| m_cachedImage = nullptr; |
| } |
| |
| document().accessSVGExtensions().removeAllTargetReferencesForElement(this); |
| } |
| |
| void SVGFEImageElement::requestImageResource() |
| { |
| ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions(); |
| options.contentSecurityPolicyImposition = isInUserAgentShadowTree() ? ContentSecurityPolicyImposition::SkipPolicyCheck : ContentSecurityPolicyImposition::DoPolicyCheck; |
| |
| CachedResourceRequest request(ResourceRequest(document().completeURL(href())), options); |
| request.setInitiator(*this); |
| m_cachedImage = document().cachedResourceLoader().requestImage(WTFMove(request)).value_or(nullptr); |
| |
| if (m_cachedImage) |
| m_cachedImage->addClient(*this); |
| } |
| |
| void SVGFEImageElement::buildPendingResource() |
| { |
| clearResourceReferences(); |
| if (!isConnected()) |
| return; |
| |
| String id; |
| auto target = makeRefPtr(SVGURIReference::targetElementFromIRIString(href(), document(), &id)); |
| if (!target) { |
| if (id.isEmpty()) |
| requestImageResource(); |
| else { |
| document().accessSVGExtensions().addPendingResource(id, this); |
| ASSERT(hasPendingResources()); |
| } |
| } else if (target->isSVGElement()) { |
| // Register us with the target in the dependencies map. Any change of hrefElement |
| // that leads to relayout/repainting now informs us, so we can react to it. |
| document().accessSVGExtensions().addElementReferencingTarget(this, downcast<SVGElement>(target.get())); |
| } |
| |
| invalidate(); |
| } |
| |
| void SVGFEImageElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| if (name == SVGNames::preserveAspectRatioAttr) { |
| SVGPreserveAspectRatioValue preserveAspectRatio; |
| preserveAspectRatio.parse(value); |
| setPreserveAspectRatioBaseValue(preserveAspectRatio); |
| return; |
| } |
| |
| SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); |
| SVGURIReference::parseAttribute(name, value); |
| SVGExternalResourcesRequired::parseAttribute(name, value); |
| } |
| |
| void SVGFEImageElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (attrName == SVGNames::preserveAspectRatioAttr) { |
| InstanceInvalidationGuard guard(*this); |
| invalidate(); |
| return; |
| } |
| |
| if (SVGURIReference::isKnownAttribute(attrName)) { |
| InstanceInvalidationGuard guard(*this); |
| buildPendingResource(); |
| return; |
| } |
| |
| SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); |
| } |
| |
| Node::InsertedIntoAncestorResult SVGFEImageElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree) |
| { |
| SVGFilterPrimitiveStandardAttributes::insertedIntoAncestor(insertionType, parentOfInsertedTree); |
| return InsertedIntoAncestorResult::NeedsPostInsertionCallback; |
| } |
| |
| void SVGFEImageElement::didFinishInsertingNode() |
| { |
| buildPendingResource(); |
| } |
| |
| void SVGFEImageElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree) |
| { |
| SVGFilterPrimitiveStandardAttributes::removedFromAncestor(removalType, oldParentOfRemovedTree); |
| if (removalType.disconnectedFromDocument) |
| clearResourceReferences(); |
| } |
| |
| void SVGFEImageElement::notifyFinished(CachedResource&) |
| { |
| if (!isConnected()) |
| return; |
| |
| auto parent = makeRefPtr(parentElement()); |
| |
| if (!parent || !parent->hasTagName(SVGNames::filterTag)) |
| return; |
| |
| RenderElement* parentRenderer = parent->renderer(); |
| if (!parentRenderer) |
| return; |
| |
| RenderSVGResource::markForLayoutAndParentResourceInvalidation(*parentRenderer); |
| } |
| |
| RefPtr<FilterEffect> SVGFEImageElement::build(SVGFilterBuilder*, Filter& filter) |
| { |
| if (m_cachedImage) |
| return FEImage::createWithImage(filter, m_cachedImage->imageForRenderer(renderer()), preserveAspectRatio()); |
| return FEImage::createWithIRIReference(filter, document(), href(), preserveAspectRatio()); |
| } |
| |
| void SVGFEImageElement::addSubresourceAttributeURLs(ListHashSet<URL>& urls) const |
| { |
| SVGFilterPrimitiveStandardAttributes::addSubresourceAttributeURLs(urls); |
| |
| addSubresourceURL(urls, document().completeURL(href())); |
| } |
| |
| } |