/* -*- 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 .

 */

#ifndef INCLUDED_TOOLS_WEAKBASE_HXX

#define INCLUDED_TOOLS_WEAKBASE_HXX

#include <tools/weakbase.h>

/// see weakbase.h for documentation

namespace tools

{

template< class reference_type >

inline WeakReference< reference_type >::WeakReference()

{

    mpWeakConnection = new WeakConnection;

}

template< class reference_type >

inline WeakReference< reference_type >::WeakReference( reference_type* pReference )

{

    reset( pReference );

}

template< class reference_type >

inline WeakReference< reference_type >::WeakReference( const WeakReference< reference_type >& rWeakRef )

{

    mpWeakConnection = rWeakRef.mpWeakConnection;

}

template< class reference_type >

inline WeakReference< reference_type >::WeakReference( WeakReference< reference_type >&& rWeakRef )

{

    mpWeakConnection = std::move(rWeakRef.mpWeakConnection);

    rWeakRef.reset();

}

template< class reference_type >

inline bool WeakReference< reference_type >::is() const

{

    return mpWeakConnection->mpReference != nullptr;

}

template< class reference_type >

inline reference_type * WeakReference< reference_type >::get() const

{

    auto pWeakBase = mpWeakConnection->mpReference;

    if (!pWeakBase)

        return nullptr;

    assert(dynamic_cast<reference_type *>(pWeakBase));

    return static_cast<reference_type *>(pWeakBase);

}

template< class reference_type >

inline void WeakReference< reference_type >::reset( reference_type* pReference )

{

    if( pReference )

        mpWeakConnection = pReference->getWeakConnection();

    else

        reset();

}

template< class reference_type >

inline void WeakReference< reference_type >::reset()

{

    mpWeakConnection = new WeakConnection;

}

template< class reference_type >

inline reference_type * WeakReference< reference_type >::operator->() const

{

    return get();

}

template< class reference_type >

inline reference_type& WeakReference< reference_type >::operator*() const

{

    return *get();

}

template< class reference_type >

inline bool WeakReference< reference_type >::operator==(const reference_type * pReferenceObject) const

{

    return mpWeakConnection->mpReference == pReferenceObject;

}

template< class reference_type >

inline bool WeakReference< reference_type >::operator==(const WeakReference<reference_type> & handle) const

{

    return mpWeakConnection == handle.mpWeakConnection;

}

template< class reference_type >

inline bool WeakReference< reference_type >::operator!=(const WeakReference<reference_type> & handle) const

{

    return mpWeakConnection != handle.mpWeakConnection;

}

template< class reference_type >

inline bool WeakReference< reference_type >::operator<(const WeakReference<reference_type> & handle) const

{

    return mpWeakConnection->mpReference < handle.mpWeakConnection->mpReference;

}

template< class reference_type >

inline bool WeakReference< reference_type >::operator>(const WeakReference<reference_type> & handle) const

{

    return mpWeakConnection->mpReference > handle.mpWeakConnection->mpReference;

}

template< class reference_type >

inline WeakReference<reference_type>& WeakReference<reference_type>::operator= (

    const WeakReference<reference_type>& rReference)

{

    if (&rReference != this)

        mpWeakConnection = rReference.mpWeakConnection;

    return *this;

}

template< class reference_type >

inline WeakReference<reference_type>& WeakReference<reference_type>::operator= (

    WeakReference<reference_type>&& rReference)

{

    mpWeakConnection = std::move(rReference.mpWeakConnection);

    return *this;

}

inline void WeakBase::clearWeak()

{

    if( mpWeakConnection.is() )

        mpWeakConnection->mpReference = nullptr;

}

inline WeakConnection* WeakBase::getWeakConnection()

{

    if( !mpWeakConnection.is() )

        mpWeakConnection = new WeakConnection( this );

    return mpWeakConnection.get();

}

}

#endif

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