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      1 /*
      2  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis (at) kde.org>
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  */
     20 
     21 #include "config.h"
     22 
     23 #if ENABLE(SVG)
     24 #include "SVGGElement.h"
     25 
     26 #include "RenderSVGHiddenContainer.h"
     27 #include "RenderSVGResource.h"
     28 #include "RenderSVGTransformableContainer.h"
     29 #include "SVGNames.h"
     30 
     31 namespace WebCore {
     32 
     33 // Animated property declarations
     34 DEFINE_ANIMATED_BOOLEAN(SVGGElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
     35 
     36 SVGGElement::SVGGElement(const QualifiedName& tagName, Document* document)
     37     : SVGStyledTransformableElement(tagName, document)
     38 {
     39 }
     40 
     41 PassRefPtr<SVGGElement> SVGGElement::create(const QualifiedName& tagName, Document* document)
     42 {
     43     return adoptRef(new SVGGElement(tagName, document));
     44 }
     45 
     46 void SVGGElement::parseMappedAttribute(Attribute* attr)
     47 {
     48     if (SVGTests::parseMappedAttribute(attr))
     49         return;
     50     if (SVGLangSpace::parseMappedAttribute(attr))
     51         return;
     52     if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
     53         return;
     54 
     55     SVGStyledTransformableElement::parseMappedAttribute(attr);
     56 }
     57 
     58 void SVGGElement::svgAttributeChanged(const QualifiedName& attrName)
     59 {
     60     SVGStyledTransformableElement::svgAttributeChanged(attrName);
     61 
     62     if (SVGTests::handleAttributeChange(this, attrName))
     63         return;
     64 
     65     RenderObject* renderer = this->renderer();
     66     if (!renderer)
     67         return;
     68 
     69     if (SVGLangSpace::isKnownAttribute(attrName)
     70         || SVGExternalResourcesRequired::isKnownAttribute(attrName))
     71         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
     72 }
     73 
     74 void SVGGElement::synchronizeProperty(const QualifiedName& attrName)
     75 {
     76     SVGStyledTransformableElement::synchronizeProperty(attrName);
     77 
     78     if (attrName == anyQName()) {
     79         synchronizeExternalResourcesRequired();
     80         SVGTests::synchronizeProperties(this, attrName);
     81         return;
     82     }
     83 
     84     if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
     85         synchronizeExternalResourcesRequired();
     86     else if (SVGTests::isKnownAttribute(attrName))
     87         SVGTests::synchronizeProperties(this, attrName);
     88 }
     89 
     90 AttributeToPropertyTypeMap& SVGGElement::attributeToPropertyTypeMap()
     91 {
     92     DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
     93     return s_attributeToPropertyTypeMap;
     94 }
     95 
     96 void SVGGElement::fillAttributeToPropertyTypeMap()
     97 {
     98     SVGStyledTransformableElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap());
     99 }
    100 
    101 RenderObject* SVGGElement::createRenderer(RenderArena* arena, RenderStyle* style)
    102 {
    103     // SVG 1.1 testsuite explicitely uses constructs like <g display="none"><linearGradient>
    104     // We still have to create renderers for the <g> & <linearGradient> element, though the
    105     // subtree may be hidden - we only want the resource renderers to exist so they can be
    106     // referenced from somewhere else.
    107     if (style->display() == NONE)
    108         return new (arena) RenderSVGHiddenContainer(this);
    109 
    110     return new (arena) RenderSVGTransformableContainer(this);
    111 }
    112 
    113 bool SVGGElement::rendererIsNeeded(RenderStyle*)
    114 {
    115     return parentNode() && parentNode()->isSVGElement();
    116 }
    117 
    118 }
    119 
    120 #endif // ENABLE(SVG)
    121