/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <sal/config.h>

#include <svl/itempool.hxx>

#include <svl/poolitem.hxx>

#include <svl/stritem.hxx>

#include <nochaos.hxx>

#include <memory>

#define WID_CHAOS_START TypedWhichId<SfxStringItem>(500)

namespace {

class CntItemPool: public SfxItemPool

{

    static CntItemPool* _pThePool;

    sal_uInt16              _nRefs;

protected:

             CntItemPool();

    virtual ~CntItemPool() override;

public:

    static CntItemPool* Acquire();

    static sal_uInt16       Release();

};

}

// static

SfxItemPool* NoChaos::GetItemPool()

{

    // Get and hold CHAOS item pool.

    return CntItemPool::Acquire();

}

// static

sal_uInt16 NoChaos::ReleaseItemPool()

{

    // Release CHAOS item pool.

    return CntItemPool::Release();

}

//  CntItemPool implementation

static ItemInfoPackage& getItemInfoPackageNoChaos()

{

    class ItemInfoPackageNoChaos : public ItemInfoPackage

    {

        typedef std::array<ItemInfoStatic, 1> ItemInfoArrayNoChaos;

        ItemInfoArrayNoChaos maItemInfos {{

            // m_nWhich, m_pItem, m_nSlotID, m_nItemInfoFlags

            { WID_CHAOS_START, new SfxStringItem(WID_CHAOS_START, OUString()), 0, SFX_ITEMINFOFLAG_NONE }

        }};

        virtual const ItemInfoStatic& getItemInfoStatic(size_t nIndex) const override { return maItemInfos[nIndex]; }

    public:

        virtual size_t size() const override { return maItemInfos.size(); }

        virtual const ItemInfo& getItemInfo(size_t nIndex, SfxItemPool& /*rPool*/) override { return maItemInfos[nIndex]; }

    };

    static std::unique_ptr<ItemInfoPackageNoChaos> g_aItemInfoPackageNoChaos;

    if (!g_aItemInfoPackageNoChaos)

        g_aItemInfoPackageNoChaos.reset(new ItemInfoPackageNoChaos);

    return *g_aItemInfoPackageNoChaos;

}

// static CntStaticPoolDefaults_Impl* pPoolDefs_Impl = nullptr;

// static member!

CntItemPool* CntItemPool::_pThePool = nullptr;

CntItemPool::CntItemPool()

: SfxItemPool(u"chaos"_ustr)

, _nRefs(0)

{

    registerItemInfoPackage(getItemInfoPackageNoChaos());

}

//virtual

CntItemPool::~CntItemPool()

{

}

// static

CntItemPool* CntItemPool::Acquire()

{

    if ( !_pThePool )

        _pThePool = new CntItemPool;

    _pThePool->_nRefs++;

    return _pThePool;

}

// static

sal_uInt16 CntItemPool::Release()

{

    if ( !_pThePool )

        return 0;

    sal_uInt16& nRefs = _pThePool->_nRefs;

    if ( nRefs )

        --nRefs;

    if ( !nRefs )

    {

        delete _pThePool;

        _pThePool = nullptr;

        return 0;

    }

    return nRefs;

}

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