/* -*- 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 "itemholder2.hxx"

#include <osl/diagnose.h>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/configuration/theDefaultProvider.hpp>

#include <svtools/accessibilityoptions.hxx>
#include <svtools/colorcfg.hxx>
#include <unotools/options.hxx>
#include <svtools/miscopt.hxx>
#include <tools/diagnose_ex.h>
#include <rtl/ref.hxx>

namespace svtools {

ItemHolder2::ItemHolder2()
{
    try
    {
        css::uno::Reference< css::uno::XComponentContext > xContext = ::comphelper::getProcessComponentContext();
        css::uno::Reference< css::lang::XComponent > xCfg(
            css::configuration::theDefaultProvider::get( xContext ),
            css::uno::UNO_QUERY_THROW );
        xCfg->addEventListener(static_cast< css::lang::XEventListener* >(this));
    }
    catch(const css::uno::RuntimeException&)
    {
        throw;
    }
#ifdef DBG_UTIL
    catch(const css::uno::Exception&)
    {
        static bool bMessage = true;
        if(bMessage)
        {
            bMessage = false;
            TOOLS_WARN_EXCEPTION( "svtools", "CreateInstance with arguments" );
        }
    }
#else
    catch(css::uno::Exception&){}
#endif
}


ItemHolder2::~ItemHolder2()
{
    impl_releaseAllItems();
}


void ItemHolder2::holdConfigItem(EItem eItem)
{
    static rtl::Reference<ItemHolder2> pHolder = new ItemHolder2();
    pHolder->impl_addItem(eItem);
}


void SAL_CALL ItemHolder2::disposing(const css::lang::EventObject&)
{
    impl_releaseAllItems();
}


void ItemHolder2::impl_addItem(EItem eItem)
{
    std::scoped_lock aLock(m_aLock);

    for ( auto const & rInfo : m_lItems )
    {
        if (rInfo.eItem == eItem)
            return;
    }

    TItemInfo aNewItem;
    aNewItem.eItem = eItem;
    impl_newItem(aNewItem);
    if (aNewItem.pItem)
        m_lItems.emplace_back(std::move(aNewItem));
}


void ItemHolder2::impl_releaseAllItems()
{
    std::vector<TItemInfo> items;
    {
        std::scoped_lock aLock(m_aLock);
        items.swap(m_lItems);
    }

    // items will be freed when the block exits
}


void ItemHolder2::impl_newItem(TItemInfo& rItem)
{
    switch(rItem.eItem)
    {
        case EItem::AccessibilityOptions :
            rItem.pItem.reset( new SvtAccessibilityOptions() );
            break;

        case EItem::ColorConfig :
            rItem.pItem.reset( new ::svtools::ColorConfig() );
            break;

        case EItem::MiscOptions :
            rItem.pItem.reset( new SvtMiscOptions() );
            break;

        default:
            OSL_ASSERT(false);
            break;
    }
}

} // namespace svtools

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