loongoffice/include/tools/weakbase.hxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * This file is part of the LibreOffice project.
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 * 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<reference_type>( 0 );
}

template< class reference_type >
inline WeakReference< reference_type >::WeakReference( reference_type* pReference )
{
    if( pReference )
        mpWeakConnection = pReference->getWeakConnection();
    else
        mpWeakConnection = new WeakConnection<reference_type>( 0 );
}

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);
}

template< class reference_type >
inline bool WeakReference< reference_type >::is() const
{
    return mpWeakConnection->mpReference != 0;
}

template< class reference_type >
inline reference_type * WeakReference< reference_type >::get() const
{
    return mpWeakConnection->mpReference;
}

template< class reference_type >
inline void WeakReference< reference_type >::reset( reference_type* pReference )
{
    if( pReference )
        mpWeakConnection = pReference->getWeakConnection();
    else
        mpWeakConnection = new WeakConnection<reference_type>( 0 );
}

template< class reference_type >
inline reference_type * WeakReference< reference_type >::operator->() const
{
    OSL_PRECOND(mpWeakConnection.is(), "tools::WeakReference::operator->() : null body");
    return mpWeakConnection->mpReference;
}

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;
}

template< class reference_type >
inline WeakBase< reference_type >::WeakBase()
{
}

template< class reference_type >
inline WeakBase< reference_type >::~WeakBase()
{
    if( mpWeakConnection.is() )
    {
        mpWeakConnection->mpReference = 0;
    }
}

template< class reference_type >
inline void WeakBase< reference_type >::clearWeak()
{
    if( mpWeakConnection.is() )
        mpWeakConnection->mpReference = 0;
}

template< class reference_type >
inline WeakConnection< reference_type >* WeakBase< reference_type >::getWeakConnection()
{
    if( !mpWeakConnection.is() )
    {
        mpWeakConnection = new WeakConnection< reference_type >( static_cast< reference_type* >( this ) );
    }
    return mpWeakConnection.get();
}

}

#endif

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