1 /*
2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #include "core/svg/SVGMPathElement.h"
23
24 #include "XLinkNames.h"
25 #include "core/dom/Document.h"
26 #include "core/svg/SVGAnimateMotionElement.h"
27 #include "core/svg/SVGDocumentExtensions.h"
28 #include "core/svg/SVGPathElement.h"
29
30 namespace WebCore {
31
32 // Animated property definitions
DEFINE_ANIMATED_STRING(SVGMPathElement,XLinkNames::hrefAttr,Href,href)33 DEFINE_ANIMATED_STRING(SVGMPathElement, XLinkNames::hrefAttr, Href, href)
34 DEFINE_ANIMATED_BOOLEAN(SVGMPathElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
35
36 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGMPathElement)
37 REGISTER_LOCAL_ANIMATED_PROPERTY(href)
38 REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
39 END_REGISTER_ANIMATED_PROPERTIES
40
41 inline SVGMPathElement::SVGMPathElement(Document& document)
42 : SVGElement(SVGNames::mpathTag, document)
43 {
44 ScriptWrappable::init(this);
45 registerAnimatedPropertiesForSVGMPathElement();
46 }
47
create(Document & document)48 PassRefPtr<SVGMPathElement> SVGMPathElement::create(Document& document)
49 {
50 return adoptRef(new SVGMPathElement(document));
51 }
52
~SVGMPathElement()53 SVGMPathElement::~SVGMPathElement()
54 {
55 clearResourceReferences();
56 }
57
buildPendingResource()58 void SVGMPathElement::buildPendingResource()
59 {
60 clearResourceReferences();
61 if (!inDocument())
62 return;
63
64 String id;
65 Element* target = SVGURIReference::targetElementFromIRIString(hrefCurrentValue(), document(), &id);
66 if (!target) {
67 // Do not register as pending if we are already pending this resource.
68 if (document().accessSVGExtensions()->isElementPendingResource(this, id))
69 return;
70
71 if (!id.isEmpty()) {
72 document().accessSVGExtensions()->addPendingResource(id, this);
73 ASSERT(hasPendingResources());
74 }
75 } else if (target->isSVGElement()) {
76 // Register us with the target in the dependencies map. Any change of hrefElement
77 // that leads to relayout/repainting now informs us, so we can react to it.
78 document().accessSVGExtensions()->addElementReferencingTarget(this, toSVGElement(target));
79 }
80
81 targetPathChanged();
82 }
83
clearResourceReferences()84 void SVGMPathElement::clearResourceReferences()
85 {
86 document().accessSVGExtensions()->removeAllTargetReferencesForElement(this);
87 }
88
insertedInto(ContainerNode * rootParent)89 Node::InsertionNotificationRequest SVGMPathElement::insertedInto(ContainerNode* rootParent)
90 {
91 SVGElement::insertedInto(rootParent);
92 if (rootParent->inDocument())
93 buildPendingResource();
94 return InsertionDone;
95 }
96
removedFrom(ContainerNode * rootParent)97 void SVGMPathElement::removedFrom(ContainerNode* rootParent)
98 {
99 SVGElement::removedFrom(rootParent);
100 notifyParentOfPathChange(rootParent);
101 if (rootParent->inDocument())
102 clearResourceReferences();
103 }
104
isSupportedAttribute(const QualifiedName & attrName)105 bool SVGMPathElement::isSupportedAttribute(const QualifiedName& attrName)
106 {
107 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
108 if (supportedAttributes.isEmpty()) {
109 SVGURIReference::addSupportedAttributes(supportedAttributes);
110 SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
111 }
112 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
113 }
114
parseAttribute(const QualifiedName & name,const AtomicString & value)115 void SVGMPathElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
116 {
117 if (!isSupportedAttribute(name)) {
118 SVGElement::parseAttribute(name, value);
119 return;
120 }
121
122 if (SVGURIReference::parseAttribute(name, value))
123 return;
124 if (SVGExternalResourcesRequired::parseAttribute(name, value))
125 return;
126
127 ASSERT_NOT_REACHED();
128 }
129
svgAttributeChanged(const QualifiedName & attrName)130 void SVGMPathElement::svgAttributeChanged(const QualifiedName& attrName)
131 {
132 if (!isSupportedAttribute(attrName)) {
133 SVGElement::svgAttributeChanged(attrName);
134 return;
135 }
136
137 SVGElementInstance::InvalidationGuard invalidationGuard(this);
138
139 if (SVGURIReference::isKnownAttribute(attrName)) {
140 buildPendingResource();
141 return;
142 }
143
144 if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
145 return;
146
147 ASSERT_NOT_REACHED();
148 }
149
pathElement()150 SVGPathElement* SVGMPathElement::pathElement()
151 {
152 Element* target = targetElementFromIRIString(hrefCurrentValue(), document());
153 if (target && target->hasTagName(SVGNames::pathTag))
154 return toSVGPathElement(target);
155 return 0;
156 }
157
targetPathChanged()158 void SVGMPathElement::targetPathChanged()
159 {
160 notifyParentOfPathChange(parentNode());
161 }
162
notifyParentOfPathChange(ContainerNode * parent)163 void SVGMPathElement::notifyParentOfPathChange(ContainerNode* parent)
164 {
165 if (parent && parent->hasTagName(SVGNames::animateMotionTag))
166 static_cast<SVGAnimateMotionElement*>(parent)->updateAnimationPath();
167 }
168
169 } // namespace WebCore
170