147 lines
4.4 KiB
C++
147 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <unotools/closeveto.hxx>
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#include <com/sun/star/util/CloseVetoException.hpp>
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#include <com/sun/star/util/XCloseable.hpp>
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#include <cppuhelper/implbase.hxx>
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#include <rtl/ref.hxx>
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#include <comphelper/diagnose_ex.hxx>
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namespace utl
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{
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::XInterface;
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using ::com::sun::star::uno::UNO_QUERY;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::util::XCloseable;
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using ::com::sun::star::util::XCloseListener;
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using ::com::sun::star::util::CloseVetoException;
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using ::com::sun::star::lang::EventObject;
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//= CloseListener_Impl
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typedef ::cppu::WeakImplHelper < XCloseListener
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> CloseListener_Base;
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namespace {
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class CloseListener_Impl : public CloseListener_Base
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{
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public:
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explicit CloseListener_Impl(bool const bHasOwnership)
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: m_bHasOwnership(bHasOwnership)
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{
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}
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// XCloseListener
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virtual void SAL_CALL queryClosing( const EventObject& Source, sal_Bool GetsOwnership ) override;
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virtual void SAL_CALL notifyClosing( const EventObject& Source ) override;
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// XEventListener
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virtual void SAL_CALL disposing( const EventObject& Source) override;
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bool hasOwnership() const { return m_bHasOwnership; }
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protected:
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virtual ~CloseListener_Impl() override
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{
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}
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private:
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bool m_bHasOwnership;
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};
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}
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void SAL_CALL CloseListener_Impl::queryClosing( const EventObject&, sal_Bool i_deliverOwnership )
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{
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if ( !m_bHasOwnership )
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m_bHasOwnership = i_deliverOwnership;
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throw CloseVetoException();
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}
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void SAL_CALL CloseListener_Impl::notifyClosing( const EventObject& ) {}
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void SAL_CALL CloseListener_Impl::disposing( const EventObject& ) {}
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//= CloseVeto_Data
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struct CloseVeto_Data
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{
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Reference< XCloseable > xCloseable;
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::rtl::Reference< CloseListener_Impl > pListener;
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};
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//= operations
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namespace
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{
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void lcl_init( CloseVeto_Data& i_data, const Reference< XInterface >& i_closeable,
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bool const hasOwnership)
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{
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i_data.xCloseable.set( i_closeable, UNO_QUERY );
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ENSURE_OR_RETURN_VOID( i_data.xCloseable.is(), "CloseVeto: the component is not closeable!" );
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i_data.pListener = new CloseListener_Impl(hasOwnership);
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i_data.xCloseable->addCloseListener( i_data.pListener );
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}
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void lcl_deinit( CloseVeto_Data const & i_data )
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{
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if ( !i_data.xCloseable.is() )
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return;
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i_data.xCloseable->removeCloseListener( i_data.pListener );
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if ( i_data.pListener->hasOwnership() )
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{
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try
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{
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i_data.xCloseable->close( true );
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}
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catch( const CloseVetoException& ) { }
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION("unotools");
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}
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}
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}
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}
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//= CloseVeto
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CloseVeto::CloseVeto(const Reference< XInterface >& i_closeable,
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bool const hasOwnership)
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: m_xData(new CloseVeto_Data)
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{
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lcl_init(*m_xData, i_closeable, hasOwnership);
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}
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CloseVeto::~CloseVeto()
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{
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lcl_deinit(*m_xData);
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}
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} // namespace utl
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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