| /* |
| * 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 "core/svg/SVGFEImageElement.h" |
| |
| #include "core/dom/Document.h" |
| #include "core/fetch/FetchRequest.h" |
| #include "core/fetch/ResourceFetcher.h" |
| #include "core/svg/SVGDocumentExtensions.h" |
| #include "core/svg/SVGPreserveAspectRatio.h" |
| #include "core/svg/graphics/filters/SVGFEImage.h" |
| #include "platform/graphics/Image.h" |
| |
| namespace blink { |
| |
| inline SVGFEImageElement::SVGFEImageElement(Document& document) |
| : SVGFilterPrimitiveStandardAttributes(SVGNames::feImageTag, document), |
| SVGURIReference(this), |
| m_preserveAspectRatio(SVGAnimatedPreserveAspectRatio::create( |
| this, |
| SVGNames::preserveAspectRatioAttr, |
| SVGPreserveAspectRatio::create())) { |
| addToPropertyMap(m_preserveAspectRatio); |
| } |
| |
| DEFINE_NODE_FACTORY(SVGFEImageElement) |
| |
| SVGFEImageElement::~SVGFEImageElement() { |
| if (m_cachedImage) { |
| m_cachedImage->removeClient(this); |
| m_cachedImage = nullptr; |
| } |
| } |
| |
| DEFINE_TRACE(SVGFEImageElement) { |
| visitor->trace(m_preserveAspectRatio); |
| visitor->trace(m_cachedImage); |
| SVGFilterPrimitiveStandardAttributes::trace(visitor); |
| SVGURIReference::trace(visitor); |
| ResourceClient::trace(visitor); |
| } |
| |
| bool SVGFEImageElement::currentFrameHasSingleSecurityOrigin() const { |
| if (m_cachedImage && m_cachedImage->getImage()) |
| return m_cachedImage->getImage()->currentFrameHasSingleSecurityOrigin(); |
| |
| return true; |
| } |
| |
| void SVGFEImageElement::clearResourceReferences() { |
| if (m_cachedImage) { |
| m_cachedImage->removeClient(this); |
| m_cachedImage = nullptr; |
| } |
| |
| removeAllOutgoingReferences(); |
| } |
| |
| void SVGFEImageElement::fetchImageResource() { |
| FetchRequest request( |
| ResourceRequest(ownerDocument()->completeURL(hrefString())), localName()); |
| m_cachedImage = ImageResource::fetch(request, document().fetcher()); |
| |
| if (m_cachedImage) |
| m_cachedImage->addClient(this); |
| } |
| |
| void SVGFEImageElement::buildPendingResource() { |
| clearResourceReferences(); |
| if (!isConnected()) |
| return; |
| |
| AtomicString id; |
| Element* target = SVGURIReference::targetElementFromIRIString( |
| hrefString(), treeScope(), &id); |
| if (!target) { |
| if (id.isEmpty()) { |
| fetchImageResource(); |
| } 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. |
| addReferenceTo(toSVGElement(target)); |
| } |
| |
| invalidate(); |
| } |
| |
| void SVGFEImageElement::svgAttributeChanged(const QualifiedName& attrName) { |
| if (attrName == SVGNames::preserveAspectRatioAttr) { |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| invalidate(); |
| return; |
| } |
| |
| if (SVGURIReference::isKnownAttribute(attrName)) { |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| buildPendingResource(); |
| return; |
| } |
| |
| SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); |
| } |
| |
| Node::InsertionNotificationRequest SVGFEImageElement::insertedInto( |
| ContainerNode* rootParent) { |
| SVGFilterPrimitiveStandardAttributes::insertedInto(rootParent); |
| buildPendingResource(); |
| return InsertionDone; |
| } |
| |
| void SVGFEImageElement::removedFrom(ContainerNode* rootParent) { |
| SVGFilterPrimitiveStandardAttributes::removedFrom(rootParent); |
| if (rootParent->isConnected()) |
| clearResourceReferences(); |
| } |
| |
| void SVGFEImageElement::notifyFinished(Resource*) { |
| if (!isConnected()) |
| return; |
| |
| Element* parent = parentElement(); |
| if (!parent || !isSVGFilterElement(parent) || !parent->layoutObject()) |
| return; |
| |
| if (LayoutObject* layoutObject = this->layoutObject()) |
| markForLayoutAndParentResourceInvalidation(layoutObject); |
| } |
| |
| FilterEffect* SVGFEImageElement::build(SVGFilterBuilder*, Filter* filter) { |
| if (m_cachedImage) { |
| // Don't use the broken image icon on image loading errors. |
| RefPtr<Image> image = |
| m_cachedImage->errorOccurred() ? nullptr : m_cachedImage->getImage(); |
| return FEImage::createWithImage(filter, image, |
| m_preserveAspectRatio->currentValue()); |
| } |
| |
| return FEImage::createWithIRIReference(filter, treeScope(), hrefString(), |
| m_preserveAspectRatio->currentValue()); |
| } |
| |
| } // namespace blink |