247 lines
9.4 KiB
C++
247 lines
9.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <unotools/sharedunocomponent.hxx>
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#include <com/sun/star/lang/XComponent.hpp>
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#include <com/sun/star/util/XCloseable.hpp>
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#include <cppuhelper/implbase1.hxx>
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#include <tools/debug.hxx>
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//............................................................................
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namespace utl
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{
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//............................................................................
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using ::com::sun::star::uno::XInterface;
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::uno::UNO_QUERY;
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using ::com::sun::star::uno::RuntimeException;
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using ::com::sun::star::lang::XComponent;
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using ::com::sun::star::lang::EventObject;
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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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//========================================================================
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//= DisposableComponent
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//========================================================================
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//------------------------------------------------------------------------
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DisposableComponent::DisposableComponent( const Reference< XInterface >& _rxComponent )
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:m_xComponent( _rxComponent, UNO_QUERY )
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{
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DBG_ASSERT( m_xComponent.is() || !_rxComponent.is(), "DisposableComponent::DisposableComponent: should be an XComponent!" );
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}
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//------------------------------------------------------------------------
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DisposableComponent::~DisposableComponent()
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{
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if ( m_xComponent.is() )
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{
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try
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{
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m_xComponent->dispose();
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}
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catch( const Exception& )
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{
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OSL_FAIL( "DisposableComponent::~DisposableComponent: caught an exception!" );
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}
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m_xComponent.clear();
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}
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}
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//========================================================================
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//= CloseableComponentImpl
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//========================================================================
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DBG_NAME( CloseableComponentImpl )
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typedef ::cppu::WeakImplHelper1 < XCloseListener
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> CloseableComponentImpl_Base;
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class CloseableComponentImpl : public CloseableComponentImpl_Base
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{
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private:
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Reference< XCloseable > m_xCloseable;
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public:
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CloseableComponentImpl( const Reference< XInterface >& _rxComponent );
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/** closes the component
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@nofail
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*/
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void nf_closeComponent();
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protected:
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virtual ~CloseableComponentImpl();
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// XCloseListener overridables
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virtual void SAL_CALL queryClosing( const EventObject& Source, ::sal_Bool GetsOwnership ) throw (CloseVetoException, RuntimeException);
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virtual void SAL_CALL notifyClosing( const EventObject& Source ) throw (RuntimeException);
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// XEventListener overridables
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virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException);
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private:
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/** starts or stops being a CloseListener at the component
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Only to be called upon construction of the instance, or when the component
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is to be closed.
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@nofail
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*/
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void impl_nf_switchListening( bool _bListen );
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private:
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CloseableComponentImpl(); // never implemented
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CloseableComponentImpl( const CloseableComponentImpl& ); // never implemented
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CloseableComponentImpl& operator=( const CloseableComponentImpl& ); // never implemented
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};
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//------------------------------------------------------------------------
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CloseableComponentImpl::CloseableComponentImpl( const Reference< XInterface >& _rxComponent )
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:m_xCloseable( _rxComponent, UNO_QUERY )
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{
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DBG_CTOR( CloseableComponentImpl, NULL );
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DBG_ASSERT( m_xCloseable.is() || !_rxComponent.is(), "CloseableComponentImpl::CloseableComponentImpl: component is not an XCloseable!" );
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impl_nf_switchListening( true );
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}
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//------------------------------------------------------------------------
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CloseableComponentImpl::~CloseableComponentImpl()
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{
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nf_closeComponent();
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DBG_DTOR( CloseableComponentImpl, NULL );
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}
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//------------------------------------------------------------------------
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void CloseableComponentImpl::nf_closeComponent()
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{
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if ( !m_xCloseable.is() )
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// nothing to do
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return;
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// stop listening
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impl_nf_switchListening( false );
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// close
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try
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{
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m_xCloseable->close( sal_True );
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}
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catch( const CloseVetoException& ) { /* fine */ }
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catch( const Exception& )
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{
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OSL_FAIL( "CloseableComponentImpl::nf_closeComponent: caught an unexpected exception!" );
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}
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// reset
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m_xCloseable.clear();
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}
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//------------------------------------------------------------------------
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void CloseableComponentImpl::impl_nf_switchListening( bool _bListen )
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{
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if ( !m_xCloseable.is() )
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return;
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try
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{
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if ( _bListen )
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m_xCloseable->addCloseListener( this );
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else
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m_xCloseable->removeCloseListener( this );
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}
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catch( const Exception& )
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{
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OSL_FAIL( "CloseableComponentImpl::impl_nf_switchListening: caught an exception!" );
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}
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}
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//--------------------------------------------------------------------
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void SAL_CALL CloseableComponentImpl::queryClosing( const EventObject&
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#ifdef DBG_UTIL
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Source
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#endif
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, ::sal_Bool /*GetsOwnership*/ ) throw (CloseVetoException, RuntimeException)
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{
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// as long as we live, somebody wants to keep the object alive. So, veto the
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// closing
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DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::queryClosing: where did this come from?" );
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throw CloseVetoException();
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}
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//--------------------------------------------------------------------
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void SAL_CALL CloseableComponentImpl::notifyClosing( const EventObject&
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#ifdef DBG_UTIL
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Source
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#endif
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) throw (RuntimeException)
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{
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DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::notifyClosing: where did this come from?" );
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// this should be unreachable: As long as we're a CloseListener, we veto the closing. If we're going
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// to close the component ourself, then we revoke ourself as listener *before* the close call. So,
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// if this here fires, something went definately wrong.
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OSL_FAIL( "CloseableComponentImpl::notifyClosing: unreachable!" );
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}
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//--------------------------------------------------------------------
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void SAL_CALL CloseableComponentImpl::disposing( const EventObject&
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#ifdef DBG_UTIL
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Source
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#endif
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) throw (RuntimeException)
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{
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DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::disposing: where did this come from?" );
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OSL_FAIL( "CloseableComponentImpl::disposing: unreachable!" );
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// same reasoning for this assertion as in ->notifyClosing
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}
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//========================================================================
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//= CloseableComponentImpl
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//========================================================================
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DBG_NAME( CloseableComponent )
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//------------------------------------------------------------------------
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CloseableComponent::CloseableComponent( const Reference< XInterface >& _rxComponent )
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:m_pImpl( new CloseableComponentImpl( _rxComponent ) )
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{
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DBG_CTOR( CloseableComponent, NULL );
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}
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//------------------------------------------------------------------------
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CloseableComponent::~CloseableComponent()
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{
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// close the component, deliver ownership to anybody who wants to veto the close
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m_pImpl->nf_closeComponent();
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DBG_DTOR( CloseableComponent, NULL );
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}
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//............................................................................
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} // namespace utl
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//............................................................................
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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