/* -*- 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 <uiconfiguration/globalsettings.hxx>

#include <services.h>

#include <com/sun/star/configuration/theDefaultProvider.hpp>

#include <com/sun/star/container/XNameAccess.hpp>

#include <com/sun/star/lang/XComponent.hpp>

#include <com/sun/star/lang/XEventListener.hpp>

#include <rtl/ref.hxx>

#include <comphelper/propertysequence.hxx>

#include <cppuhelper/implbase.hxx>

#include <mutex>

#include <utility>

//  Defines

using namespace ::com::sun::star;

//  Namespace

namespace framework

{

//  Configuration access class for WindowState supplier implementation

namespace {

class GlobalSettings_Access : public ::cppu::WeakImplHelper<

                                  css::lang::XComponent,

                                  css::lang::XEventListener>

{

    public:

        explicit GlobalSettings_Access( css::uno::Reference< css::uno::XComponentContext > xContext );

        // XComponent

        virtual void SAL_CALL dispose() override;

        virtual void SAL_CALL addEventListener( const css::uno::Reference< css::lang::XEventListener >& xListener ) override;

        virtual void SAL_CALL removeEventListener( const css::uno::Reference< css::lang::XEventListener >& aListener ) override;

        // XEventListener

        virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;

        // settings access

        bool HasToolbarStatesInfo();

        bool GetToolbarStateInfo( GlobalSettings::StateInfo eStateInfo, css::uno::Any& aValue );

    private:

        void impl_initConfigAccess();

        std::mutex                                                m_mutex;

        bool                                                      m_bDisposed   : 1,

                                                                  m_bConfigRead : 1;

        OUString                                                  m_aNodeRefStates;

        OUString                                                  m_aPropStatesEnabled;

        OUString                                                  m_aPropLocked;

        OUString                                                  m_aPropDocked;

        css::uno::Reference< css::container::XNameAccess >        m_xConfigAccess;

        css::uno::Reference< css::uno::XComponentContext>         m_xContext;

};

}

GlobalSettings_Access::GlobalSettings_Access( css::uno::Reference< css::uno::XComponentContext > xContext ) :

    m_bDisposed( false ),

    m_bConfigRead( false ),

    m_aNodeRefStates( u"States"_ustr ),

    m_aPropStatesEnabled( u"StatesEnabled"_ustr ),

    m_aPropLocked( u"Locked"_ustr ),

    m_aPropDocked( u"Docked"_ustr ),

    m_xContext(std::move( xContext ))

{

}

// XComponent

void SAL_CALL GlobalSettings_Access::dispose()

{

    std::unique_lock g(m_mutex);

    m_xConfigAccess.clear();

    m_bDisposed = true;

}

void SAL_CALL GlobalSettings_Access::addEventListener( const css::uno::Reference< css::lang::XEventListener >& )

{

}

void SAL_CALL GlobalSettings_Access::removeEventListener( const css::uno::Reference< css::lang::XEventListener >& )

{

}

// XEventListener

void SAL_CALL GlobalSettings_Access::disposing( const css::lang::EventObject& )

{

    std::unique_lock g(m_mutex);

    m_xConfigAccess.clear();

}

// settings access

bool GlobalSettings_Access::HasToolbarStatesInfo()

{

    std::unique_lock g(m_mutex);

    if ( m_bDisposed )

        return false;

    if ( !m_bConfigRead )

    {

        m_bConfigRead = true;

        impl_initConfigAccess();

    }

    if ( m_xConfigAccess.is() )

    {

        try

        {

            css::uno::Any a;

            bool      bValue;

            a = m_xConfigAccess->getByName( m_aPropStatesEnabled );

            if ( a >>= bValue )

                return bValue;

        }

        catch ( const css::container::NoSuchElementException& )

        {

        }

        catch ( const css::uno::Exception& )

        {

        }

    }

    return false;

}

bool GlobalSettings_Access::GetToolbarStateInfo( GlobalSettings::StateInfo eStateInfo, css::uno::Any& aValue )

{

    std::unique_lock g(m_mutex);

    if ( m_bDisposed )

        return false;

    if ( !m_bConfigRead )

    {

        m_bConfigRead = true;

        impl_initConfigAccess();

    }

    if ( !m_xConfigAccess.is() )

        return false;

    try

    {

        css::uno::Any a = m_xConfigAccess->getByName( m_aNodeRefStates );

        css::uno::Reference< css::container::XNameAccess > xNameAccess;

        if ( a >>= xNameAccess )

        {

            if ( eStateInfo == GlobalSettings::STATEINFO_LOCKED )

                a = xNameAccess->getByName( m_aPropLocked );

            else if ( eStateInfo == GlobalSettings::STATEINFO_DOCKED )

                a = xNameAccess->getByName( m_aPropDocked );

            aValue = std::move(a);

            return true;

        }

    }

    catch ( const css::container::NoSuchElementException& )

    {

    }

    catch ( const css::uno::Exception& )

    {

    }

    return false;

}

void GlobalSettings_Access::impl_initConfigAccess()

{

    try

    {

        if ( m_xContext.is() )

        {

            css::uno::Reference< css::lang::XMultiServiceFactory > xConfigProvider =

                 css::configuration::theDefaultProvider::get( m_xContext );

            uno::Sequence<uno::Any> aArgs(comphelper::InitAnyPropertySequence(

            {

                {"nodepath", uno::Any(u"/org.openoffice.Office.UI.GlobalSettings/Toolbars"_ustr)}

            }));

            m_xConfigAccess.set(xConfigProvider->createInstanceWithArguments(

                                    SERVICENAME_CFGREADACCESS, aArgs ),

                                css::uno::UNO_QUERY );

            css::uno::Reference< css::lang::XComponent >(

                xConfigProvider, css::uno::UNO_QUERY_THROW )->addEventListener(

                    css::uno::Reference< css::lang::XEventListener >(this));

        }

    }

    catch ( const css::lang::WrappedTargetException& )

    {

    }

    catch ( const css::uno::Exception& )

    {

    }

}

//  global class

static GlobalSettings_Access* GetGlobalSettings( const css::uno::Reference< css::uno::XComponentContext >& rxContext )

{

    static rtl::Reference<GlobalSettings_Access> pStaticSettings = new GlobalSettings_Access( rxContext );

    return pStaticSettings.get();

}

GlobalSettings::GlobalSettings( css::uno::Reference< css::uno::XComponentContext > xContext ) :

    m_xContext(std::move( xContext ))

{

}

GlobalSettings::~GlobalSettings()

{

}

// settings access

bool GlobalSettings::HasToolbarStatesInfo() const

{

    GlobalSettings_Access* pSettings( GetGlobalSettings( m_xContext ));

    if ( pSettings )

        return pSettings->HasToolbarStatesInfo();

    else

        return false;

}

bool GlobalSettings::GetToolbarStateInfo( StateInfo eStateInfo, css::uno::Any& aValue )

{

    GlobalSettings_Access* pSettings( GetGlobalSettings( m_xContext ));

    if ( pSettings )

        return pSettings->GetToolbarStateInfo( eStateInfo, aValue );

    else

        return false;

}

} // namespace framework

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