2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
6 * (C) 2006 Alexey Proskuryakov (ap@nypop.com)
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
26 #include "core/html/HTMLFieldSetElement.h"
28 #include "HTMLNames.h"
29 #include "core/dom/ElementTraversal.h"
30 #include "core/html/HTMLCollection.h"
31 #include "core/html/HTMLLegendElement.h"
32 #include "core/html/HTMLObjectElement.h"
33 #include "core/rendering/RenderFieldset.h"
34 #include "wtf/StdLibExtras.h"
38 using namespace HTMLNames;
40 inline HTMLFieldSetElement::HTMLFieldSetElement(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
41 : HTMLFormControlElement(tagName, document, form)
42 , m_documentVersion(0)
44 ASSERT(hasTagName(fieldsetTag));
45 ScriptWrappable::init(this);
48 PassRefPtr<HTMLFieldSetElement> HTMLFieldSetElement::create(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
50 return adoptRef(new HTMLFieldSetElement(tagName, document, form));
53 void HTMLFieldSetElement::invalidateDisabledStateUnder(Element* base)
55 for (Element* element = ElementTraversal::firstWithin(base); element; element = ElementTraversal::next(element, base)) {
56 if (element->isFormControlElement())
57 toHTMLFormControlElement(element)->ancestorDisabledStateWasChanged();
61 void HTMLFieldSetElement::disabledAttributeChanged()
63 // This element must be updated before the style of nodes in its subtree gets recalculated.
64 HTMLFormControlElement::disabledAttributeChanged();
65 invalidateDisabledStateUnder(this);
68 void HTMLFieldSetElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
70 HTMLFormControlElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
71 for (Element* element = ElementTraversal::firstWithin(this); element; element = ElementTraversal::nextSkippingChildren(element, this)) {
72 if (element->hasTagName(legendTag))
73 invalidateDisabledStateUnder(element);
77 bool HTMLFieldSetElement::supportsFocus() const
79 return HTMLElement::supportsFocus();
82 const AtomicString& HTMLFieldSetElement::formControlType() const
84 DEFINE_STATIC_LOCAL(const AtomicString, fieldset, ("fieldset", AtomicString::ConstructFromLiteral));
88 RenderObject* HTMLFieldSetElement::createRenderer(RenderStyle*)
90 return new RenderFieldset(this);
93 HTMLLegendElement* HTMLFieldSetElement::legend() const
95 for (Element* child = ElementTraversal::firstWithin(this); child; child = ElementTraversal::nextSkippingChildren(child, this)) {
96 if (child->hasTagName(legendTag))
97 return toHTMLLegendElement(child);
102 PassRefPtr<HTMLCollection> HTMLFieldSetElement::elements()
104 return ensureCachedHTMLCollection(FormControls);
107 void HTMLFieldSetElement::refreshElementsIfNeeded() const
109 uint64_t docVersion = document().domTreeVersion();
110 if (m_documentVersion == docVersion)
113 m_documentVersion = docVersion;
115 m_associatedElements.clear();
117 for (Element* element = ElementTraversal::firstWithin(this); element; element = ElementTraversal::next(element, this)) {
118 if (element->hasTagName(objectTag)) {
119 m_associatedElements.append(toHTMLObjectElement(element));
123 if (!element->isFormControlElement())
126 m_associatedElements.append(toHTMLFormControlElement(element));
130 const Vector<FormAssociatedElement*>& HTMLFieldSetElement::associatedElements() const
132 refreshElementsIfNeeded();
133 return m_associatedElements;
136 unsigned HTMLFieldSetElement::length() const
138 refreshElementsIfNeeded();
140 for (unsigned i = 0; i < m_associatedElements.size(); ++i)
141 if (m_associatedElements[i]->isEnumeratable())