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/*
* Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Rob Buis <buis@kde.org>
* Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
* Copyright (C) 2014 Adobe Systems Incorporated. All rights reserved.
* Copyright (C) 2018-2019 Apple Inc. 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 "SVGImageElement.h"
#include "CSSPropertyNames.h"
#include "RenderImageResource.h"
#include "RenderSVGImage.h"
#include "RenderSVGResource.h"
#include "SVGElementInlines.h"
#include "SVGNames.h"
#include "XLinkNames.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/NeverDestroyed.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGImageElement);
inline SVGImageElement::SVGImageElement(const QualifiedName& tagName, Document& document)
: SVGGraphicsElement(tagName, document)
, SVGURIReference(this)
, m_imageLoader(*this)
{
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::xAttr, &SVGImageElement::m_x>();
PropertyRegistry::registerProperty<SVGNames::yAttr, &SVGImageElement::m_y>();
PropertyRegistry::registerProperty<SVGNames::widthAttr, &SVGImageElement::m_width>();
PropertyRegistry::registerProperty<SVGNames::heightAttr, &SVGImageElement::m_height>();
PropertyRegistry::registerProperty<SVGNames::preserveAspectRatioAttr, &SVGImageElement::m_preserveAspectRatio>();
});
}
Ref<SVGImageElement> SVGImageElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGImageElement(tagName, document));
}
bool SVGImageElement::hasSingleSecurityOrigin() const
{
auto* renderer = downcast<RenderSVGImage>(this->renderer());
if (!renderer || !renderer->imageResource().cachedImage())
return true;
auto* image = renderer->imageResource().cachedImage()->image();
return !image || image->hasSingleSecurityOrigin();
}
void SVGImageElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == SVGNames::preserveAspectRatioAttr) {
m_preserveAspectRatio->setBaseValInternal(SVGPreserveAspectRatioValue { value });
return;
}
SVGParsingError parseError = NoError;
if (name == SVGNames::xAttr)
m_x->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Width, value, parseError));
else if (name == SVGNames::yAttr)
m_y->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Height, value, parseError));
else if (name == SVGNames::widthAttr)
m_width->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Width, value, parseError, SVGLengthNegativeValuesMode::Forbid));
else if (name == SVGNames::heightAttr)
m_height->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Height, value, parseError, SVGLengthNegativeValuesMode::Forbid));
reportAttributeParsingError(parseError, name, value);
SVGGraphicsElement::parseAttribute(name, value);
SVGURIReference::parseAttribute(name, value);
}
void SVGImageElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isKnownAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr) {
updateRelativeLengthsInformation();
if (auto* renderer = this->renderer()) {
if (!downcast<RenderSVGImage>(*renderer).updateImageViewport())
return;
updateSVGRendererForElementChange();
}
} else if (attrName == SVGNames::widthAttr || attrName == SVGNames::heightAttr)
setPresentationalHintStyleIsDirty();
else {
ASSERT(attrName == SVGNames::preserveAspectRatioAttr);
updateSVGRendererForElementChange();
}
return;
}
if (SVGURIReference::isKnownAttribute(attrName)) {
m_imageLoader.updateFromElementIgnoringPreviousError();
return;
}
SVGGraphicsElement::svgAttributeChanged(attrName);
}
RenderPtr<RenderElement> SVGImageElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
return createRenderer<RenderSVGImage>(*this, WTFMove(style));
}
bool SVGImageElement::haveLoadedRequiredResources()
{
return !m_imageLoader.hasPendingActivity();
}
void SVGImageElement::didAttachRenderers()
{
if (auto* imageObj = downcast<RenderSVGImage>(renderer())) {
if (imageObj->imageResource().cachedImage())
return;
imageObj->imageResource().setCachedImage(m_imageLoader.image());
}
}
Node::InsertedIntoAncestorResult SVGImageElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
{
SVGGraphicsElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
if (!insertionType.connectedToDocument)
return InsertedIntoAncestorResult::Done;
// Update image loader, as soon as we're living in the tree.
// We can only resolve base URIs properly, after that!
m_imageLoader.updateFromElement();
return InsertedIntoAncestorResult::Done;
}
const AtomString& SVGImageElement::imageSourceURL() const
{
return getAttribute(SVGNames::hrefAttr, XLinkNames::hrefAttr);
}
void SVGImageElement::addSubresourceAttributeURLs(ListHashSet<URL>& urls) const
{
SVGGraphicsElement::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document().completeURL(href()));
}
void SVGImageElement::didMoveToNewDocument(Document& oldDocument, Document& newDocument)
{
m_imageLoader.elementDidMoveToNewDocument(oldDocument);
SVGGraphicsElement::didMoveToNewDocument(oldDocument, newDocument);
}
}
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