/*
 * Copyright (C) 2007-2018 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.
 *
 */

#pragma once

#include <memory>
#include <wtf/HashMap.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomStringHash.h>

namespace WebCore {

class HTMLInputElement;
class RadioButtonGroup;

class RadioButtonGroups {
    WTF_MAKE_TZONE_ALLOCATED(RadioButtonGroups);
public:
    RadioButtonGroups();
    ~RadioButtonGroups();
    void clear();
    void addButton(HTMLInputElement&);
    void updateCheckedState(HTMLInputElement&);
    void requiredStateChanged(HTMLInputElement&);
    void removeButton(HTMLInputElement&);
    RefPtr<HTMLInputElement> checkedButtonForGroup(const AtomString& groupName) const;
    bool hasCheckedButton(const HTMLInputElement&) const;
    bool isInRequiredGroup(HTMLInputElement&) const;
    Vector<Ref<HTMLInputElement>> groupMembers(const HTMLInputElement&) const;

private:
    typedef HashMap<AtomString, std::unique_ptr<RadioButtonGroup>> NameToGroupMap;
    NameToGroupMap m_nameToGroupMap;
};

} // namespace WebCore
