1/*
2 * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@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 "SVGTRefElement.h"
25
26#include "RenderSVGInline.h"
27#include "RenderSVGResource.h"
28#include "SVGDocument.h"
29#include "SVGNames.h"
30#include "Text.h"
31#include "XLinkNames.h"
32
33namespace WebCore {
34
35// Animated property definitions
36DEFINE_ANIMATED_STRING(SVGTRefElement, XLinkNames::hrefAttr, Href, href)
37
38inline SVGTRefElement::SVGTRefElement(const QualifiedName& tagName, Document* document)
39    : SVGTextPositioningElement(tagName, document)
40{
41}
42
43PassRefPtr<SVGTRefElement> SVGTRefElement::create(const QualifiedName& tagName, Document* document)
44{
45    return adoptRef(new SVGTRefElement(tagName, document));
46}
47
48void SVGTRefElement::updateReferencedText()
49{
50    Element* target = document()->getElementById(SVGURIReference::getTarget(href()));
51    String textContent;
52    if (target && target->isSVGElement())
53        textContent = static_cast<SVGElement*>(target)->textContent();
54    ExceptionCode ignore = 0;
55    setTextContent(textContent, ignore);
56}
57
58void SVGTRefElement::parseMappedAttribute(Attribute* attr)
59{
60    if (SVGURIReference::parseMappedAttribute(attr)) {
61        updateReferencedText();
62        return;
63    }
64
65    SVGTextPositioningElement::parseMappedAttribute(attr);
66}
67
68void SVGTRefElement::svgAttributeChanged(const QualifiedName& attrName)
69{
70    SVGTextPositioningElement::svgAttributeChanged(attrName);
71
72    if (!renderer())
73        return;
74
75    if (SVGURIReference::isKnownAttribute(attrName))
76        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer());
77}
78
79void SVGTRefElement::synchronizeProperty(const QualifiedName& attrName)
80{
81    SVGTextPositioningElement::synchronizeProperty(attrName);
82
83    if (attrName == anyQName() || SVGURIReference::isKnownAttribute(attrName))
84        synchronizeHref();
85}
86
87AttributeToPropertyTypeMap& SVGTRefElement::attributeToPropertyTypeMap()
88{
89    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
90    return s_attributeToPropertyTypeMap;
91}
92
93void SVGTRefElement::fillAttributeToPropertyTypeMap()
94{
95    AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
96
97    SVGTextPositioningElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
98    attributeToPropertyTypeMap.set(XLinkNames::hrefAttr, AnimatedString);
99}
100
101RenderObject* SVGTRefElement::createRenderer(RenderArena* arena, RenderStyle*)
102{
103    return new (arena) RenderSVGInline(this);
104}
105
106bool SVGTRefElement::childShouldCreateRenderer(Node* child) const
107{
108    if (child->isTextNode())
109        return true;
110
111    return false;
112}
113
114bool SVGTRefElement::rendererIsNeeded(RenderStyle* style)
115{
116    if (parentNode()
117        && (parentNode()->hasTagName(SVGNames::aTag)
118#if ENABLE(SVG_FONTS)
119            || parentNode()->hasTagName(SVGNames::altGlyphTag)
120#endif
121            || parentNode()->hasTagName(SVGNames::textTag)
122            || parentNode()->hasTagName(SVGNames::textPathTag)
123            || parentNode()->hasTagName(SVGNames::tspanTag)))
124        return StyledElement::rendererIsNeeded(style);
125
126    return false;
127}
128
129}
130
131#endif // ENABLE(SVG)
132