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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004-2025 Apple Inc. All rights reserved.
* (C) 2006 Alexey Proskuryakov (ap@nypop.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "HTMLOptGroupElement.h"
#include "Document.h"
#include "ElementAncestorIteratorInlines.h"
#include "ElementIterator.h"
#include "HTMLNames.h"
#include "HTMLOptionElement.h"
#include "HTMLSelectElement.h"
#include "PseudoClassChangeInvalidation.h"
#include "RenderMenuList.h"
#include "NodeRenderStyle.h"
#include "StyleResolver.h"
#include "TypedElementDescendantIteratorInlines.h"
#include <wtf/StdLibExtras.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(HTMLOptGroupElement);
using namespace HTMLNames;
inline HTMLOptGroupElement::HTMLOptGroupElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(optgroupTag));
}
Ref<HTMLOptGroupElement> HTMLOptGroupElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new HTMLOptGroupElement(tagName, document));
}
auto HTMLOptGroupElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree) -> InsertedIntoAncestorResult
{
auto result = HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
if (!document().settings().htmlEnhancedSelectParsingEnabled() || m_ownerSelect)
return result;
if (RefPtr select = HTMLSelectElement::findOwnerSelect(protectedParentNode().get(), HTMLSelectElement::ExcludeOptGroup::Yes)) {
m_ownerSelect = select.get();
select->setRecalcListItems();
}
return result;
}
void HTMLOptGroupElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
{
HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
if (!document().settings().htmlEnhancedSelectParsingEnabled() || !m_ownerSelect)
return;
if (RefPtr select = HTMLSelectElement::findOwnerSelect(protectedParentNode().get(), HTMLSelectElement::ExcludeOptGroup::Yes)) {
ASSERT_UNUSED(select, select == m_ownerSelect.get());
return;
}
if (RefPtr select = std::exchange(m_ownerSelect, nullptr).get())
select->setRecalcListItems();
}
bool HTMLOptGroupElement::isDisabledFormControl() const
{
return m_isDisabled;
}
bool HTMLOptGroupElement::isFocusable() const
{
RefPtr select = ownerSelectElement();
if (select && select->usesMenuList())
return false;
return HTMLElement::isFocusable();
}
const AtomString& HTMLOptGroupElement::formControlType() const
{
static MainThreadNeverDestroyed<const AtomString> optgroup("optgroup"_s);
return optgroup;
}
void HTMLOptGroupElement::childrenChanged(const ChildChange& change)
{
if (document().settings().htmlEnhancedSelectParsingEnabled()) {
HTMLElement::childrenChanged(change);
return;
}
bool isRelevant = change.affectsElements == ChildChange::AffectsElements::Yes;
RefPtr select = isRelevant ? ownerSelectElement() : nullptr;
if (!isRelevant || !select) {
HTMLElement::childrenChanged(change);
return;
}
auto selectOptionIfNecessaryScope = select->optionToSelectFromChildChangeScope(change, this);
recalcSelectOptions();
HTMLElement::childrenChanged(change);
}
void HTMLOptGroupElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason attributeModificationReason)
{
HTMLElement::attributeChanged(name, oldValue, newValue, attributeModificationReason);
recalcSelectOptions();
if (name == disabledAttr) {
bool newDisabled = !newValue.isNull();
if (m_isDisabled != newDisabled) {
Style::PseudoClassChangeInvalidation disabledInvalidation(*this, { { CSSSelector::PseudoClass::Disabled, newDisabled }, { CSSSelector::PseudoClass::Enabled, !newDisabled } });
Vector<Style::PseudoClassChangeInvalidation> optionInvalidation;
for (Ref descendant : descendantsOfType<HTMLOptionElement>(*this))
optionInvalidation.append({ descendant, { { CSSSelector::PseudoClass::Disabled, newDisabled }, { CSSSelector::PseudoClass::Enabled, !newDisabled } } });
m_isDisabled = newDisabled;
}
}
}
void HTMLOptGroupElement::recalcSelectOptions()
{
if (RefPtr selectElement = ownerSelectElement()) {
selectElement->setRecalcListItems();
selectElement->updateValidity();
}
}
String HTMLOptGroupElement::groupLabelText() const
{
String itemText = protectedDocument()->displayStringModifiedByEncoding(attributeWithoutSynchronization(labelAttr));
// In WinIE, leading and trailing whitespace is ignored in options and optgroups. We match this behavior.
itemText = itemText.trim(deprecatedIsSpaceOrNewline);
// We want to collapse our whitespace too. This will match other browsers.
itemText = itemText.simplifyWhiteSpace(deprecatedIsSpaceOrNewline);
return itemText;
}
HTMLSelectElement* HTMLOptGroupElement::ownerSelectElement() const
{
if (!document().settings().htmlEnhancedSelectParsingEnabled())
return dynamicDowncast<HTMLSelectElement>(parentNode());
return m_ownerSelect.get();
}
bool HTMLOptGroupElement::accessKeyAction(bool)
{
RefPtr select = ownerSelectElement();
// send to the parent to bring focus to the list box
if (select && !select->focused())
return select->accessKeyAction(false);
return false;
}
} // namespace
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