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 "core/HTMLNames.h"
29 #include "core/dom/ElementTraversal.h"
30 #include "core/dom/NodeListsNodeData.h"
31 #include "core/html/HTMLCollection.h"
32 #include "core/html/HTMLFormControlsCollection.h"
33 #include "core/html/HTMLLegendElement.h"
34 #include "core/html/HTMLObjectElement.h"
35 #include "core/rendering/RenderFieldset.h"
36 #include "wtf/StdLibExtras.h"
40 using namespace HTMLNames;
42 inline HTMLFieldSetElement::HTMLFieldSetElement(Document& document, HTMLFormElement* form)
43 : HTMLFormControlElement(fieldsetTag, document, form)
44 , m_documentVersion(0)
48 PassRefPtrWillBeRawPtr<HTMLFieldSetElement> HTMLFieldSetElement::create(Document& document, HTMLFormElement* form)
50 return adoptRefWillBeNoop(new HTMLFieldSetElement(document, form));
53 void HTMLFieldSetElement::trace(Visitor* visitor)
56 visitor->trace(m_associatedElements);
58 HTMLFormControlElement::trace(visitor);
61 bool HTMLFieldSetElement::matchesValidityPseudoClasses() const
66 bool HTMLFieldSetElement::isValidElement()
68 const FormAssociatedElement::List& elements = associatedElements();
69 for (unsigned i = 0; i < elements.size(); ++i) {
70 if (elements[i]->isFormControlElement()) {
71 HTMLFormControlElement* control = toHTMLFormControlElement(elements[i].get());
72 if (!control->checkValidity(0, CheckValidityDispatchNoEvent))
79 void HTMLFieldSetElement::setNeedsValidityCheck()
81 // For now unconditionally order style recalculation, which triggers
82 // validity recalculation. In the near future, consider implement validity
83 // cache and recalculate style only if it changed.
84 pseudoStateChanged(CSSSelector::PseudoValid);
85 pseudoStateChanged(CSSSelector::PseudoInvalid);
88 void HTMLFieldSetElement::invalidateDisabledStateUnder(Element& base)
90 for (HTMLFormControlElement& element : Traversal<HTMLFormControlElement>::descendantsOf(base))
91 element.ancestorDisabledStateWasChanged();
94 void HTMLFieldSetElement::disabledAttributeChanged()
96 // This element must be updated before the style of nodes in its subtree gets recalculated.
97 HTMLFormControlElement::disabledAttributeChanged();
98 invalidateDisabledStateUnder(*this);
101 void HTMLFieldSetElement::childrenChanged(const ChildrenChange& change)
103 HTMLFormControlElement::childrenChanged(change);
104 for (HTMLLegendElement& legend : Traversal<HTMLLegendElement>::childrenOf(*this))
105 invalidateDisabledStateUnder(legend);
108 bool HTMLFieldSetElement::supportsFocus() const
110 return HTMLElement::supportsFocus();
113 const AtomicString& HTMLFieldSetElement::formControlType() const
115 DEFINE_STATIC_LOCAL(const AtomicString, fieldset, ("fieldset", AtomicString::ConstructFromLiteral));
119 RenderObject* HTMLFieldSetElement::createRenderer(RenderStyle*)
121 return new RenderFieldset(this);
124 HTMLLegendElement* HTMLFieldSetElement::legend() const
126 return Traversal<HTMLLegendElement>::firstChild(*this);
129 PassRefPtrWillBeRawPtr<HTMLFormControlsCollection> HTMLFieldSetElement::elements()
131 return ensureCachedCollection<HTMLFormControlsCollection>(FormControls);
134 void HTMLFieldSetElement::refreshElementsIfNeeded() const
136 uint64_t docVersion = document().domTreeVersion();
137 if (m_documentVersion == docVersion)
140 m_documentVersion = docVersion;
142 m_associatedElements.clear();
144 for (HTMLElement& element : Traversal<HTMLElement>::descendantsOf(*this)) {
145 if (isHTMLObjectElement(element)) {
146 m_associatedElements.append(toHTMLObjectElement(&element));
150 if (!element.isFormControlElement())
153 m_associatedElements.append(toHTMLFormControlElement(&element));
157 const FormAssociatedElement::List& HTMLFieldSetElement::associatedElements() const
159 refreshElementsIfNeeded();
160 return m_associatedElements;