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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>
*
* 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 "Attribute.h"
#include "CSSPropertyNames.h"
#include "RenderSVGImage.h"
#include "RenderSVGResource.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(LengthModeWidth)
, m_y(LengthModeHeight)
, m_width(LengthModeWidth)
, m_height(LengthModeHeight)
, m_imageLoader(this)
{
}
SVGImageElement::~SVGImageElement()
{
}
void SVGImageElement::parseMappedAttribute(Attribute* 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)
SVGPreserveAspectRatio::parsePreserveAspectRatio(this, attr->value());
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 (SVGURIReference::isKnownAttribute(attrName))
m_imageLoader.updateFromElementIgnoringPreviousError();
bool isLengthAttribute = attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr;
if (isLengthAttribute)
updateRelativeLengthsInformation();
RenderObject* renderer = this->renderer();
if (!renderer)
return;
if (SVGStyledTransformableElement::isKnownAttribute(attrName)) {
renderer->setNeedsTransformUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
if (isLengthAttribute
|| attrName == SVGNames::preserveAspectRatioAttr
|| SVGTests::isKnownAttribute(attrName)
|| SVGLangSpace::isKnownAttribute(attrName)
|| SVGExternalResourcesRequired::isKnownAttribute(attrName))
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
void SVGImageElement::synchronizeProperty(const QualifiedName& attrName)
{
SVGStyledTransformableElement::synchronizeProperty(attrName);
if (attrName == anyQName()) {
synchronizeX();
synchronizeY();
synchronizeWidth();
synchronizeHeight();
synchronizePreserveAspectRatio();
synchronizeExternalResourcesRequired();
synchronizeHref();
return;
}
if (attrName == SVGNames::xAttr)
synchronizeX();
else if (attrName == SVGNames::yAttr)
synchronizeY();
else if (attrName == SVGNames::widthAttr)
synchronizeWidth();
else if (attrName == SVGNames::heightAttr)
synchronizeHeight();
else if (attrName == SVGNames::preserveAspectRatioAttr)
synchronizePreserveAspectRatio();
else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
synchronizeExternalResourcesRequired();
else if (SVGURIReference::isKnownAttribute(attrName))
synchronizeHref();
}
bool SVGImageElement::selfHasRelativeLengths() const
{
return x().isRelative()
|| y().isRelative()
|| width().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 = toRenderSVGImage(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()));
}
void SVGImageElement::willMoveToNewOwnerDocument()
{
m_imageLoader.elementWillMoveToNewOwnerDocument();
SVGStyledTransformableElement::willMoveToNewOwnerDocument();
}
}
#endif // ENABLE(SVG)
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