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      1 /*
      2  * Copyright (C) 2006 Apple Inc. All rights reserved.
      3  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann (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) && ENABLE(SVG_FOREIGN_OBJECT)
     24 #include "SVGForeignObjectElement.h"
     25 
     26 #include "Attribute.h"
     27 #include "CSSPropertyNames.h"
     28 #include "RenderSVGForeignObject.h"
     29 #include "RenderSVGResource.h"
     30 #include "SVGLength.h"
     31 #include "SVGNames.h"
     32 #include <wtf/Assertions.h>
     33 
     34 namespace WebCore {
     35 
     36 // Animated property definitions
     37 DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::xAttr, X, x)
     38 DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::yAttr, Y, y)
     39 DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::widthAttr, Width, width)
     40 DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::heightAttr, Height, height)
     41 DEFINE_ANIMATED_STRING(SVGForeignObjectElement, XLinkNames::hrefAttr, Href, href)
     42 DEFINE_ANIMATED_BOOLEAN(SVGForeignObjectElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
     43 
     44 inline SVGForeignObjectElement::SVGForeignObjectElement(const QualifiedName& tagName, Document* document)
     45     : SVGStyledTransformableElement(tagName, document)
     46     , m_x(LengthModeWidth)
     47     , m_y(LengthModeHeight)
     48     , m_width(LengthModeWidth)
     49     , m_height(LengthModeHeight)
     50 {
     51 }
     52 
     53 PassRefPtr<SVGForeignObjectElement> SVGForeignObjectElement::create(const QualifiedName& tagName, Document* document)
     54 {
     55     return adoptRef(new SVGForeignObjectElement(tagName, document));
     56 }
     57 
     58 void SVGForeignObjectElement::parseMappedAttribute(Attribute* attr)
     59 {
     60     const AtomicString& value = attr->value();
     61     if (attr->name() == SVGNames::xAttr)
     62         setXBaseValue(SVGLength(LengthModeWidth, value));
     63     else if (attr->name() == SVGNames::yAttr)
     64         setYBaseValue(SVGLength(LengthModeHeight, value));
     65     else if (attr->name() == SVGNames::widthAttr)
     66         setWidthBaseValue(SVGLength(LengthModeWidth, value));
     67     else if (attr->name() == SVGNames::heightAttr)
     68         setHeightBaseValue(SVGLength(LengthModeHeight, value));
     69     else {
     70         if (SVGTests::parseMappedAttribute(attr))
     71             return;
     72         if (SVGLangSpace::parseMappedAttribute(attr))
     73             return;
     74         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
     75             return;
     76         SVGStyledTransformableElement::parseMappedAttribute(attr);
     77     }
     78 }
     79 
     80 void SVGForeignObjectElement::svgAttributeChanged(const QualifiedName& attrName)
     81 {
     82     SVGStyledTransformableElement::svgAttributeChanged(attrName);
     83 
     84     bool isLengthAttribute = attrName == SVGNames::xAttr
     85                           || attrName == SVGNames::yAttr
     86                           || attrName == SVGNames::widthAttr
     87                           || attrName == SVGNames::heightAttr;
     88 
     89     if (isLengthAttribute)
     90         updateRelativeLengthsInformation();
     91 
     92     if (SVGTests::handleAttributeChange(this, attrName))
     93         return;
     94 
     95     RenderObject* renderer = this->renderer();
     96     if (!renderer)
     97         return;
     98 
     99     if (isLengthAttribute
    100         || SVGLangSpace::isKnownAttribute(attrName)
    101         || SVGExternalResourcesRequired::isKnownAttribute(attrName))
    102         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    103 }
    104 
    105 void SVGForeignObjectElement::synchronizeProperty(const QualifiedName& attrName)
    106 {
    107     SVGStyledTransformableElement::synchronizeProperty(attrName);
    108 
    109     if (attrName == anyQName()) {
    110         synchronizeX();
    111         synchronizeY();
    112         synchronizeWidth();
    113         synchronizeHeight();
    114         synchronizeExternalResourcesRequired();
    115         synchronizeHref();
    116         SVGTests::synchronizeProperties(this, attrName);
    117         return;
    118     }
    119 
    120     if (attrName == SVGNames::xAttr)
    121         synchronizeX();
    122     else if (attrName == SVGNames::yAttr)
    123         synchronizeY();
    124     else if (attrName == SVGNames::widthAttr)
    125         synchronizeWidth();
    126     else if (attrName == SVGNames::heightAttr)
    127         synchronizeHeight();
    128     else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
    129         synchronizeExternalResourcesRequired();
    130     else if (SVGTests::isKnownAttribute(attrName))
    131         SVGTests::synchronizeProperties(this, attrName);
    132 }
    133 
    134 AttributeToPropertyTypeMap& SVGForeignObjectElement::attributeToPropertyTypeMap()
    135 {
    136     DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
    137     return s_attributeToPropertyTypeMap;
    138 }
    139 
    140 void SVGForeignObjectElement::fillAttributeToPropertyTypeMap()
    141 {
    142     AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
    143 
    144     SVGStyledTransformableElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
    145     attributeToPropertyTypeMap.set(SVGNames::xAttr, AnimatedLength);
    146     attributeToPropertyTypeMap.set(SVGNames::yAttr, AnimatedLength);
    147     attributeToPropertyTypeMap.set(SVGNames::widthAttr, AnimatedLength);
    148     attributeToPropertyTypeMap.set(SVGNames::heightAttr, AnimatedLength);
    149     attributeToPropertyTypeMap.set(XLinkNames::hrefAttr, AnimatedString);
    150 }
    151 
    152 RenderObject* SVGForeignObjectElement::createRenderer(RenderArena* arena, RenderStyle*)
    153 {
    154     return new (arena) RenderSVGForeignObject(this);
    155 }
    156 
    157 bool SVGForeignObjectElement::childShouldCreateRenderer(Node* child) const
    158 {
    159     // Disallow arbitary SVG content. Only allow proper <svg xmlns="svgNS"> subdocuments.
    160     if (child->isSVGElement())
    161         return child->hasTagName(SVGNames::svgTag);
    162 
    163     // Skip over SVG rules which disallow non-SVG kids
    164     return StyledElement::childShouldCreateRenderer(child);
    165 }
    166 
    167 bool SVGForeignObjectElement::selfHasRelativeLengths() const
    168 {
    169     return x().isRelative()
    170         || y().isRelative()
    171         || width().isRelative()
    172         || height().isRelative();
    173 }
    174 
    175 }
    176 
    177 #endif
    178