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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, 2005, 2006, 2007, 2008, 2010 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 "third_party/blink/renderer/core/html/forms/html_opt_group_element.h"
#include "third_party/blink/renderer/core/dom/text.h"
#include "third_party/blink/renderer/core/editing/editing_utilities.h"
#include "third_party/blink/renderer/core/html/forms/html_select_element.h"
#include "third_party/blink/renderer/core/html/html_div_element.h"
#include "third_party/blink/renderer/core/html/html_slot_element.h"
#include "third_party/blink/renderer/core/html/shadow/shadow_element_names.h"
#include "third_party/blink/renderer/core/html_names.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
#include "third_party/blink/renderer/platform/wtf/text/character_names.h"
namespace blink {
using namespace HTMLNames;
inline HTMLOptGroupElement::HTMLOptGroupElement(Document& document)
: HTMLElement(optgroupTag, document) {}
// An explicit empty destructor should be in HTMLOptGroupElement.cpp, because
// if an implicit destructor is used or an empty destructor is defined in
// HTMLOptGroupElement.h, when including HTMLOptGroupElement.h,
// msvc tries to expand the destructor and causes
// a compile error because of lack of ComputedStyle definition.
HTMLOptGroupElement::~HTMLOptGroupElement() = default;
HTMLOptGroupElement* HTMLOptGroupElement::Create(Document& document) {
HTMLOptGroupElement* opt_group_element = new HTMLOptGroupElement(document);
opt_group_element->EnsureUserAgentShadowRoot();
return opt_group_element;
}
// static
bool HTMLOptGroupElement::CanAssignToOptGroupSlot(const Node& node) {
return node.HasTagName(optionTag) || node.HasTagName(hrTag);
}
bool HTMLOptGroupElement::IsDisabledFormControl() const {
return FastHasAttribute(disabledAttr);
}
void HTMLOptGroupElement::ParseAttribute(
const AttributeModificationParams& params) {
HTMLElement::ParseAttribute(params);
if (params.name == disabledAttr) {
PseudoStateChanged(CSSSelector::kPseudoDisabled);
PseudoStateChanged(CSSSelector::kPseudoEnabled);
} else if (params.name == labelAttr) {
UpdateGroupLabel();
}
}
bool HTMLOptGroupElement::SupportsFocus() const {
HTMLSelectElement* select = OwnerSelectElement();
if (select && select->UsesMenuList())
return false;
return HTMLElement::SupportsFocus();
}
bool HTMLOptGroupElement::MatchesEnabledPseudoClass() const {
return !IsDisabledFormControl();
}
Node::InsertionNotificationRequest HTMLOptGroupElement::InsertedInto(
ContainerNode* insertion_point) {
HTMLElement::InsertedInto(insertion_point);
if (HTMLSelectElement* select = OwnerSelectElement()) {
if (insertion_point == select)
select->OptGroupInsertedOrRemoved(*this);
}
return kInsertionDone;
}
void HTMLOptGroupElement::RemovedFrom(ContainerNode* insertion_point) {
if (auto* select = ToHTMLSelectElementOrNull(*insertion_point)) {
if (!parentNode())
select->OptGroupInsertedOrRemoved(*this);
}
HTMLElement::RemovedFrom(insertion_point);
}
String HTMLOptGroupElement::GroupLabelText() const {
String item_text = getAttribute(labelAttr);
// In WinIE, leading and trailing whitespace is ignored in options and
// optgroups. We match this behavior.
item_text = item_text.StripWhiteSpace();
// We want to collapse our whitespace too. This will match other browsers.
item_text = item_text.SimplifyWhiteSpace();
return item_text;
}
HTMLSelectElement* HTMLOptGroupElement::OwnerSelectElement() const {
// TODO(tkent): We should return only the parent <select>.
return Traversal<HTMLSelectElement>::FirstAncestor(*this);
}
String HTMLOptGroupElement::DefaultToolTip() const {
if (HTMLSelectElement* select = OwnerSelectElement())
return select->DefaultToolTip();
return String();
}
void HTMLOptGroupElement::AccessKeyAction(bool) {
HTMLSelectElement* select = OwnerSelectElement();
// send to the parent to bring focus to the list box
if (select && !select->IsFocused())
select->AccessKeyAction(false);
}
void HTMLOptGroupElement::DidAddUserAgentShadowRoot(ShadowRoot& root) {
DEFINE_STATIC_LOCAL(AtomicString, label_padding, ("0 2px 1px 2px"));
DEFINE_STATIC_LOCAL(AtomicString, label_min_height, ("1.2em"));
HTMLDivElement* label = HTMLDivElement::Create(GetDocument());
label->setAttribute(roleAttr, AtomicString("group"));
label->setAttribute(aria_labelAttr, AtomicString());
label->SetInlineStyleProperty(CSSPropertyPadding, label_padding);
label->SetInlineStyleProperty(CSSPropertyMinHeight, label_min_height);
label->SetIdAttribute(ShadowElementNames::OptGroupLabel());
root.AppendChild(label);
root.AppendChild(
HTMLSlotElement::CreateUserAgentCustomAssignSlot(GetDocument()));
}
void HTMLOptGroupElement::UpdateGroupLabel() {
const String& label_text = GroupLabelText();
HTMLDivElement& label = OptGroupLabelElement();
label.setTextContent(label_text);
label.setAttribute(aria_labelAttr, AtomicString(label_text));
}
HTMLDivElement& HTMLOptGroupElement::OptGroupLabelElement() const {
return *ToHTMLDivElementOrDie(UserAgentShadowRoot()->getElementById(
ShadowElementNames::OptGroupLabel()));
}
} // namespace blink
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