| /* |
| * 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" |
| |
| #if ENABLE(SVG) && ENABLE(FILTERS) |
| #include "SVGFEImageElement.h" |
| |
| #include "Attr.h" |
| #include "CachedImage.h" |
| #include "CachedResourceLoader.h" |
| #include "CachedResourceRequest.h" |
| #include "ColorSpace.h" |
| #include "Document.h" |
| #include "Image.h" |
| #include "RenderObject.h" |
| #include "RenderSVGResource.h" |
| #include "SVGElementInstance.h" |
| #include "SVGNames.h" |
| #include "SVGPreserveAspectRatio.h" |
| #include "XLinkNames.h" |
| |
| namespace WebCore { |
| |
| // 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(); |
| } |
| |
| PassRefPtr<SVGFEImageElement> SVGFEImageElement::create(const QualifiedName& tagName, Document& document) |
| { |
| return adoptRef(new SVGFEImageElement(tagName, document)); |
| } |
| |
| SVGFEImageElement::~SVGFEImageElement() |
| { |
| clearResourceReferences(); |
| } |
| |
| void SVGFEImageElement::clearResourceReferences() |
| { |
| if (m_cachedImage) { |
| m_cachedImage->removeClient(this); |
| m_cachedImage = 0; |
| } |
| |
| document().accessSVGExtensions()->removeAllTargetReferencesForElement(this); |
| } |
| |
| void SVGFEImageElement::requestImageResource() |
| { |
| CachedResourceRequest request(ResourceRequest(document().completeURL(href()))); |
| request.setInitiator(this); |
| m_cachedImage = document().cachedResourceLoader()->requestImage(request); |
| |
| if (m_cachedImage) |
| m_cachedImage->addClient(this); |
| } |
| |
| void SVGFEImageElement::buildPendingResource() |
| { |
| clearResourceReferences(); |
| if (!inDocument()) |
| return; |
| |
| String id; |
| Element* target = 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, toSVGElement(target)); |
| } |
| |
| invalidate(); |
| } |
| |
| bool SVGFEImageElement::isSupportedAttribute(const QualifiedName& attrName) |
| { |
| DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); |
| if (supportedAttributes.isEmpty()) { |
| SVGURIReference::addSupportedAttributes(supportedAttributes); |
| SVGLangSpace::addSupportedAttributes(supportedAttributes); |
| SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes); |
| supportedAttributes.add(SVGNames::preserveAspectRatioAttr); |
| } |
| return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName); |
| } |
| |
| void SVGFEImageElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| if (!isSupportedAttribute(name)) { |
| SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); |
| return; |
| } |
| |
| if (name == SVGNames::preserveAspectRatioAttr) { |
| SVGPreserveAspectRatio preserveAspectRatio; |
| preserveAspectRatio.parse(value); |
| setPreserveAspectRatioBaseValue(preserveAspectRatio); |
| return; |
| } |
| |
| if (SVGURIReference::parseAttribute(name, value)) |
| return; |
| if (SVGLangSpace::parseAttribute(name, value)) |
| return; |
| if (SVGExternalResourcesRequired::parseAttribute(name, value)) |
| return; |
| |
| ASSERT_NOT_REACHED(); |
| } |
| |
| void SVGFEImageElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (!isSupportedAttribute(attrName)) { |
| SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); |
| return; |
| } |
| |
| SVGElementInstance::InvalidationGuard invalidationGuard(this); |
| |
| if (attrName == SVGNames::preserveAspectRatioAttr) { |
| invalidate(); |
| return; |
| } |
| |
| if (SVGURIReference::isKnownAttribute(attrName)) { |
| buildPendingResource(); |
| return; |
| } |
| |
| if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) |
| return; |
| |
| ASSERT_NOT_REACHED(); |
| } |
| |
| Node::InsertionNotificationRequest SVGFEImageElement::insertedInto(ContainerNode& rootParent) |
| { |
| SVGFilterPrimitiveStandardAttributes::insertedInto(rootParent); |
| buildPendingResource(); |
| return InsertionDone; |
| } |
| |
| void SVGFEImageElement::removedFrom(ContainerNode& rootParent) |
| { |
| SVGFilterPrimitiveStandardAttributes::removedFrom(rootParent); |
| if (rootParent.inDocument()) |
| clearResourceReferences(); |
| } |
| |
| void SVGFEImageElement::notifyFinished(CachedResource*) |
| { |
| if (!inDocument()) |
| return; |
| |
| Element* parent = parentElement(); |
| ASSERT(parent); |
| |
| if (!parent->hasTagName(SVGNames::filterTag) || !parent->renderer()) |
| return; |
| |
| RenderSVGResource::markForLayoutAndParentResourceInvalidation(parent->renderer()); |
| } |
| |
| PassRefPtr<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())); |
| } |
| |
| } |
| |
| #endif // ENABLE(SVG) |