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/* -*- 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 <unotools/closeveto.hxx>
#include <com/sun/star/util/CloseVetoException.hpp>
#include <com/sun/star/util/XCloseable.hpp>
#include <cppuhelper/implbase.hxx>
#include <rtl/ref.hxx>
#include <comphelper/diagnose_ex.hxx>
namespace utl
{
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::XInterface;
using ::com::sun::star::uno::UNO_QUERY;
using ::com::sun::star::uno::Exception;
using ::com::sun::star::util::XCloseable;
using ::com::sun::star::util::XCloseListener;
using ::com::sun::star::util::CloseVetoException;
using ::com::sun::star::lang::EventObject;
//= CloseListener_Impl
typedef ::cppu::WeakImplHelper < XCloseListener
> CloseListener_Base;
namespace {
class CloseListener_Impl : public CloseListener_Base
{
public:
explicit CloseListener_Impl(bool const bHasOwnership)
: m_bHasOwnership(bHasOwnership)
{
}
// XCloseListener
virtual void SAL_CALL queryClosing( const EventObject& Source, sal_Bool GetsOwnership ) override;
virtual void SAL_CALL notifyClosing( const EventObject& Source ) override;
// XEventListener
virtual void SAL_CALL disposing( const EventObject& Source) override;
bool hasOwnership() const { return m_bHasOwnership; }
protected:
virtual ~CloseListener_Impl() override
{
}
private:
bool m_bHasOwnership;
};
}
void SAL_CALL CloseListener_Impl::queryClosing( const EventObject&, sal_Bool i_deliverOwnership )
{
if ( !m_bHasOwnership )
m_bHasOwnership = i_deliverOwnership;
throw CloseVetoException();
}
void SAL_CALL CloseListener_Impl::notifyClosing( const EventObject& ) {}
void SAL_CALL CloseListener_Impl::disposing( const EventObject& ) {}
//= CloseVeto_Data
struct CloseVeto_Data
{
Reference< XCloseable > xCloseable;
::rtl::Reference< CloseListener_Impl > pListener;
};
//= operations
namespace
{
void lcl_init( CloseVeto_Data& i_data, const Reference< XInterface >& i_closeable,
bool const hasOwnership)
{
i_data.xCloseable.set( i_closeable, UNO_QUERY );
ENSURE_OR_RETURN_VOID( i_data.xCloseable.is(), "CloseVeto: the component is not closeable!" );
i_data.pListener = new CloseListener_Impl(hasOwnership);
i_data.xCloseable->addCloseListener( i_data.pListener );
}
void lcl_deinit( CloseVeto_Data const & i_data )
{
if ( !i_data.xCloseable.is() )
return;
i_data.xCloseable->removeCloseListener( i_data.pListener );
if ( i_data.pListener->hasOwnership() )
{
try
{
i_data.xCloseable->close( true );
}
catch( const CloseVetoException& ) { }
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION("unotools");
}
}
}
}
//= CloseVeto
CloseVeto::CloseVeto(const Reference< XInterface >& i_closeable,
bool const hasOwnership)
: m_xData(new CloseVeto_Data)
{
lcl_init(*m_xData, i_closeable, hasOwnership);
}
CloseVeto::~CloseVeto()
{
lcl_deinit(*m_xData);
}
} // namespace utl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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