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/*
* 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 "ColorSpace.h"
#include "Document.h"
#include "Image.h"
#include "RenderObject.h"
#include "RenderSVGResource.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();
}
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.setContentSecurityPolicyImposition(isInUserAgentShadowTree() ? ContentSecurityPolicyImposition::SkipPolicyCheck : ContentSecurityPolicyImposition::DoPolicyCheck);
CachedResourceRequest request(ResourceRequest(document().completeURL(href())), options);
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, downcast<SVGElement>(target));
}
invalidate();
}
void SVGFEImageElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == SVGNames::preserveAspectRatioAttr) {
SVGPreserveAspectRatio 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::InsertionNotificationRequest SVGFEImageElement::insertedInto(ContainerNode& rootParent)
{
SVGFilterPrimitiveStandardAttributes::insertedInto(rootParent);
return InsertionShouldCallFinishedInsertingSubtree;
}
void SVGFEImageElement::finishedInsertingSubtree()
{
buildPendingResource();
}
void SVGFEImageElement::removedFrom(ContainerNode& rootParent)
{
SVGFilterPrimitiveStandardAttributes::removedFrom(rootParent);
if (rootParent.inDocument())
clearResourceReferences();
}
void SVGFEImageElement::notifyFinished(CachedResource*)
{
if (!inDocument())
return;
Element* parent = 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()));
}
}
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