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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 "config.h"
#include "HTMLOptGroupElement.h"
#include "Document.h"
#include "HTMLNames.h"
#include "HTMLSelectElement.h"
#include "RenderMenuList.h"
#include "NodeRenderStyle.h"
#include "NodeRenderingContext.h"
#include "StyleResolver.h"
#include <wtf/StdLibExtras.h>
namespace WebCore {
using namespace HTMLNames;
inline HTMLOptGroupElement::HTMLOptGroupElement(const QualifiedName& tagName, Document* document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(optgroupTag));
setHasCustomStyleCallbacks();
}
PassRefPtr<HTMLOptGroupElement> HTMLOptGroupElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new HTMLOptGroupElement(tagName, document));
}
bool HTMLOptGroupElement::isDisabledFormControl() const
{
return fastHasAttribute(disabledAttr);
}
bool HTMLOptGroupElement::isFocusable() const
{
// Optgroup elements do not have a renderer so we check the renderStyle instead.
return supportsFocus() && renderStyle() && renderStyle()->display() != NONE;
}
const AtomicString& HTMLOptGroupElement::formControlType() const
{
DEFINE_STATIC_LOCAL(const AtomicString, optgroup, ("optgroup", AtomicString::ConstructFromLiteral));
return optgroup;
}
void HTMLOptGroupElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
recalcSelectOptions();
HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
}
void HTMLOptGroupElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
HTMLElement::parseAttribute(name, value);
recalcSelectOptions();
if (name == disabledAttr)
didAffectSelector(AffectedSelectorDisabled | AffectedSelectorEnabled);
}
void HTMLOptGroupElement::recalcSelectOptions()
{
ContainerNode* select = parentNode();
while (select && !select->hasTagName(selectTag))
select = select->parentNode();
if (select)
toHTMLSelectElement(select)->setRecalcListItems();
}
void HTMLOptGroupElement::attach(const AttachContext& context)
{
HTMLElement::attach(context);
// If after attaching nothing called styleForRenderer() on this node we
// manually cache the value. This happens if our parent doesn't have a
// renderer like <optgroup> or if it doesn't allow children like <select>.
if (!m_style && parentNode()->renderStyle())
updateNonRenderStyle();
}
void HTMLOptGroupElement::detach(const AttachContext& context)
{
m_style.clear();
HTMLElement::detach(context);
}
void HTMLOptGroupElement::updateNonRenderStyle()
{
m_style = document()->ensureStyleResolver()->styleForElement(this);
}
RenderStyle* HTMLOptGroupElement::nonRendererStyle() const
{
return m_style.get();
}
PassRefPtr<RenderStyle> HTMLOptGroupElement::customStyleForRenderer()
{
// styleForRenderer is called whenever a new style should be associated
// with an Element so now is a good time to update our cached style.
updateNonRenderStyle();
return m_style;
}
String HTMLOptGroupElement::groupLabelText() const
{
String itemText = document()->displayStringModifiedByEncoding(getAttribute(labelAttr));
// In WinIE, leading and trailing whitespace is ignored in options and optgroups. We match this behavior.
itemText = itemText.stripWhiteSpace();
// We want to collapse our whitespace too. This will match other browsers.
itemText = itemText.simplifyWhiteSpace();
return itemText;
}
HTMLSelectElement* HTMLOptGroupElement::ownerSelectElement() const
{
ContainerNode* select = parentNode();
while (select && !select->hasTagName(selectTag))
select = select->parentNode();
if (!select)
return 0;
return toHTMLSelectElement(select);
}
void HTMLOptGroupElement::accessKeyAction(bool)
{
HTMLSelectElement* select = ownerSelectElement();
// send to the parent to bring focus to the list box
if (select && !select->focused())
select->accessKeyAction(false);
}
} // namespace
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