blob: 20662a2917755e76e6f97b1e5b6331a70f511d91 [file] [log] [blame]
/*
* Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
*
* 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 "CheckedRadioButtons.h"
#include "HTMLInputElement.h"
namespace WebCore {
void CheckedRadioButtons::addButton(HTMLFormControlElement* element)
{
// We only want to add radio buttons.
if (!element->isRadioButton())
return;
// Without a name, there is no group.
if (element->name().isEmpty())
return;
HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(element);
// We only track checked buttons.
if (!inputElement->checked())
return;
if (!m_nameToCheckedRadioButtonMap)
m_nameToCheckedRadioButtonMap.set(new NameToInputMap);
pair<NameToInputMap::iterator, bool> result = m_nameToCheckedRadioButtonMap->add(element->name().impl(), inputElement);
if (result.second)
return;
HTMLInputElement* oldCheckedButton = result.first->second;
if (oldCheckedButton == inputElement)
return;
result.first->second = inputElement;
oldCheckedButton->setChecked(false);
}
HTMLInputElement* CheckedRadioButtons::checkedButtonForGroup(const AtomicString& name) const
{
if (!m_nameToCheckedRadioButtonMap)
return 0;
m_nameToCheckedRadioButtonMap->checkConsistency();
return m_nameToCheckedRadioButtonMap->get(name.impl());
}
void CheckedRadioButtons::removeButton(HTMLFormControlElement* element)
{
if (element->name().isEmpty() || !m_nameToCheckedRadioButtonMap)
return;
m_nameToCheckedRadioButtonMap->checkConsistency();
NameToInputMap::iterator it = m_nameToCheckedRadioButtonMap->find(element->name().impl());
if (it == m_nameToCheckedRadioButtonMap->end() || it->second != element)
return;
InputElement* inputElement = element->toInputElement();
ASSERT_UNUSED(inputElement, inputElement);
ASSERT(inputElement->isChecked());
ASSERT(element->isRadioButton());
m_nameToCheckedRadioButtonMap->remove(it);
if (m_nameToCheckedRadioButtonMap->isEmpty())
m_nameToCheckedRadioButtonMap.clear();
}
} // namespace