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/*
Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
2006 Alexander Kellett <lypanov@kde.org>
This file is part of the KDE project
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)
#include "SVGImageElement.h"
#include "CSSPropertyNames.h"
#include "MappedAttribute.h"
#include "RenderSVGImage.h"
#include "SVGDocument.h"
#include "SVGLength.h"
#include "SVGPreserveAspectRatio.h"
#include "SVGSVGElement.h"
#include "XLinkNames.h"
namespace WebCore {
SVGImageElement::SVGImageElement(const QualifiedName& tagName, Document* doc)
: SVGStyledTransformableElement(tagName, doc)
, SVGTests()
, SVGLangSpace()
, SVGExternalResourcesRequired()
, SVGURIReference()
, m_x(this, SVGNames::xAttr, LengthModeWidth)
, m_y(this, SVGNames::yAttr, LengthModeHeight)
, m_width(this, SVGNames::widthAttr, LengthModeWidth)
, m_height(this, SVGNames::heightAttr, LengthModeHeight)
, m_preserveAspectRatio(this, SVGNames::preserveAspectRatioAttr, SVGPreserveAspectRatio::create())
, m_imageLoader(this)
{
}
SVGImageElement::~SVGImageElement()
{
}
void SVGImageElement::parseMappedAttribute(MappedAttribute *attr)
{
if (attr->name() == SVGNames::xAttr)
setXBaseValue(SVGLength(LengthModeWidth, attr->value()));
else if (attr->name() == SVGNames::yAttr)
setYBaseValue(SVGLength(LengthModeHeight, attr->value()));
else if (attr->name() == SVGNames::preserveAspectRatioAttr) {
const UChar* c = attr->value().characters();
const UChar* end = c + attr->value().length();
preserveAspectRatioBaseValue()->parsePreserveAspectRatio(c, end);
} else if (attr->name() == SVGNames::widthAttr) {
setWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));
addCSSProperty(attr, CSSPropertyWidth, attr->value());
if (widthBaseValue().value(this) < 0.0)
document()->accessSVGExtensions()->reportError("A negative value for image attribute <width> is not allowed");
} else if (attr->name() == SVGNames::heightAttr) {
setHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));
addCSSProperty(attr, CSSPropertyHeight, attr->value());
if (heightBaseValue().value(this) < 0.0)
document()->accessSVGExtensions()->reportError("A negative value for image attribute <height> is not allowed");
} else {
if (SVGTests::parseMappedAttribute(attr))
return;
if (SVGLangSpace::parseMappedAttribute(attr))
return;
if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
return;
if (SVGURIReference::parseMappedAttribute(attr))
return;
SVGStyledTransformableElement::parseMappedAttribute(attr);
}
}
void SVGImageElement::svgAttributeChanged(const QualifiedName& attrName)
{
SVGStyledTransformableElement::svgAttributeChanged(attrName);
if (!renderer())
return;
bool isURIAttribute = SVGURIReference::isKnownAttribute(attrName);
if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr ||
attrName == SVGNames::widthAttr || attrName == SVGNames::heightAttr ||
attrName == SVGNames::preserveAspectRatioAttr ||
SVGTests::isKnownAttribute(attrName) ||
SVGLangSpace::isKnownAttribute(attrName) ||
SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
isURIAttribute ||
SVGStyledTransformableElement::isKnownAttribute(attrName)) {
renderer()->setNeedsLayout(true);
if (isURIAttribute)
m_imageLoader.updateFromElementIgnoringPreviousError();
}
}
bool SVGImageElement::hasRelativeValues() const
{
return (x().isRelative() || width().isRelative() ||
y().isRelative() || height().isRelative());
}
RenderObject* SVGImageElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderSVGImage(this);
}
bool SVGImageElement::haveLoadedRequiredResources()
{
return !externalResourcesRequiredBaseValue() || m_imageLoader.haveFiredLoadEvent();
}
void SVGImageElement::attach()
{
SVGStyledTransformableElement::attach();
if (RenderSVGImage* imageObj = static_cast<RenderSVGImage*>(renderer())) {
if (imageObj->hasImage())
return;
imageObj->setCachedImage(m_imageLoader.image());
}
}
void SVGImageElement::insertedIntoDocument()
{
SVGStyledTransformableElement::insertedIntoDocument();
// Update image loader, as soon as we're living in the tree.
// We can only resolve base URIs properly, after that!
m_imageLoader.updateFromElement();
}
const QualifiedName& SVGImageElement::imageSourceAttributeName() const
{
return XLinkNames::hrefAttr;
}
void SVGImageElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
{
SVGStyledTransformableElement::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document()->completeURL(href()));
}
}
#endif // ENABLE(SVG)
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