CheckedRadioButtons.cpp [plain text]
#include "config.h"
#include "CheckedRadioButtons.h"
#include "HTMLInputElement.h"
namespace WebCore {
void CheckedRadioButtons::addButton(HTMLFormControlElement* element)
{
if (!element->isRadioButton())
return;
if (element->name().isEmpty())
return;
HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(element);
if (!inputElement->checked())
return;
if (!m_nameToCheckedRadioButtonMap)
m_nameToCheckedRadioButtonMap = adoptPtr(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;
HTMLInputElement* inputElement = element->toInputElement();
ASSERT_UNUSED(inputElement, inputElement);
ASSERT(inputElement->isChecked());
ASSERT(element->isRadioButton());
m_nameToCheckedRadioButtonMap->remove(it);
if (m_nameToCheckedRadioButtonMap->isEmpty())
m_nameToCheckedRadioButtonMap.clear();
}
}