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#include "SVGSymbolElement.h"
23
24#include "RenderSVGHiddenContainer.h"
25#include "SVGElementInstance.h"
26#include "SVGFitToViewBox.h"
27#include "SVGNames.h"
28#include <wtf/NeverDestroyed.h>
29
30namespace WebCore {
31
32// Animated property definitions
33DEFINE_ANIMATED_BOOLEAN(SVGSymbolElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
34DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGSymbolElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio)
35DEFINE_ANIMATED_RECT(SVGSymbolElement, SVGNames::viewBoxAttr, ViewBox, viewBox)
36
37BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGSymbolElement)
38    REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
39    REGISTER_LOCAL_ANIMATED_PROPERTY(viewBox)
40    REGISTER_LOCAL_ANIMATED_PROPERTY(preserveAspectRatio)
41    REGISTER_PARENT_ANIMATED_PROPERTIES(SVGElement)
42END_REGISTER_ANIMATED_PROPERTIES
43
44inline SVGSymbolElement::SVGSymbolElement(const QualifiedName& tagName, Document& document)
45    : SVGElement(tagName, document)
46{
47    ASSERT(hasTagName(SVGNames::symbolTag));
48    registerAnimatedPropertiesForSVGSymbolElement();
49}
50
51PassRefPtr<SVGSymbolElement> SVGSymbolElement::create(const QualifiedName& tagName, Document& document)
52{
53    return adoptRef(new SVGSymbolElement(tagName, document));
54}
55
56bool SVGSymbolElement::isSupportedAttribute(const QualifiedName& attrName)
57{
58    static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
59    if (supportedAttributes.get().isEmpty()) {
60        SVGLangSpace::addSupportedAttributes(supportedAttributes);
61        SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
62        SVGFitToViewBox::addSupportedAttributes(supportedAttributes);
63    }
64    return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
65}
66
67void SVGSymbolElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
68{
69    if (!isSupportedAttribute(name)) {
70        SVGElement::parseAttribute(name, value);
71        return;
72    }
73
74    if (SVGLangSpace::parseAttribute(name, value))
75        return;
76    if (SVGExternalResourcesRequired::parseAttribute(name, value))
77        return;
78    if (SVGFitToViewBox::parseAttribute(this, name, value))
79        return;
80
81    ASSERT_NOT_REACHED();
82}
83
84void SVGSymbolElement::svgAttributeChanged(const QualifiedName& attrName)
85{
86    if (!isSupportedAttribute(attrName)) {
87        SVGElement::svgAttributeChanged(attrName);
88        return;
89    }
90
91    SVGElementInstance::InvalidationGuard invalidationGuard(this);
92
93    // Every other property change is ignored.
94    if (attrName == SVGNames::viewBoxAttr)
95        updateRelativeLengthsInformation();
96}
97
98bool SVGSymbolElement::selfHasRelativeLengths() const
99{
100    return hasAttribute(SVGNames::viewBoxAttr);
101}
102
103RenderPtr<RenderElement> SVGSymbolElement::createElementRenderer(PassRef<RenderStyle> style)
104{
105    return createRenderer<RenderSVGHiddenContainer>(*this, WTF::move(style));
106}
107
108}
109