WebCore/svg/SVGImageElement.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGImageElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,211 @@
+/*
+    Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005, 2006, 2007, 2008, 2009 Rob Buis <buis@kde.org>
+                  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 (RenderImage* imageObj = toRenderImage(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)