LCOV - code coverage report
Current view: top level - unotools/source/misc - sharedunocomponent.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 43 0.0 %
Date: 2014-04-14 Functions: 0 12 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <sal/config.h>
      21             : 
      22             : #include <boost/noncopyable.hpp>
      23             : #include <unotools/sharedunocomponent.hxx>
      24             : #include <com/sun/star/lang/XComponent.hpp>
      25             : #include <com/sun/star/util/XCloseable.hpp>
      26             : #include <cppuhelper/implbase1.hxx>
      27             : #include <tools/debug.hxx>
      28             : 
      29             : namespace utl
      30             : {
      31             : 
      32             :     using ::com::sun::star::uno::XInterface;
      33             :     using ::com::sun::star::uno::Reference;
      34             :     using ::com::sun::star::uno::Exception;
      35             :     using ::com::sun::star::uno::UNO_QUERY;
      36             :     using ::com::sun::star::uno::RuntimeException;
      37             :     using ::com::sun::star::lang::XComponent;
      38             :     using ::com::sun::star::lang::EventObject;
      39             :     using ::com::sun::star::util::XCloseable;
      40             :     using ::com::sun::star::util::XCloseListener;
      41             :     using ::com::sun::star::util::CloseVetoException;
      42             : 
      43             :     //= DisposableComponent
      44             : 
      45           0 :     DisposableComponent::DisposableComponent( const Reference< XInterface >& _rxComponent )
      46           0 :         :m_xComponent( _rxComponent, UNO_QUERY )
      47             :     {
      48             :         DBG_ASSERT( m_xComponent.is() || !_rxComponent.is(), "DisposableComponent::DisposableComponent: should be an XComponent!" );
      49           0 :     }
      50             : 
      51           0 :     DisposableComponent::~DisposableComponent()
      52             :     {
      53           0 :         if ( m_xComponent.is() )
      54             :         {
      55             :             try
      56             :             {
      57           0 :                 m_xComponent->dispose();
      58             :             }
      59           0 :             catch( const Exception& )
      60             :             {
      61             :                 OSL_FAIL( "DisposableComponent::~DisposableComponent: caught an exception!" );
      62             :             }
      63           0 :             m_xComponent.clear();
      64             :         }
      65           0 :     }
      66             : 
      67             :     typedef ::cppu::WeakImplHelper1 <   XCloseListener
      68             :                                     >   CloseableComponentImpl_Base;
      69             :     class CloseableComponentImpl:
      70             :         public CloseableComponentImpl_Base, private boost::noncopyable
      71             :     {
      72             :     private:
      73             :         Reference< XCloseable > m_xCloseable;
      74             : 
      75             :     public:
      76             :         CloseableComponentImpl( const Reference< XInterface >& _rxComponent );
      77             : 
      78             :         /** closes the component
      79             : 
      80             :             @nofail
      81             :         */
      82             :         void    nf_closeComponent();
      83             : 
      84             :     protected:
      85             :         virtual ~CloseableComponentImpl();
      86             : 
      87             :         // XCloseListener overridables
      88             :         virtual void SAL_CALL queryClosing( const EventObject& Source, sal_Bool GetsOwnership ) throw (CloseVetoException, RuntimeException, std::exception) SAL_OVERRIDE;
      89             :         virtual void SAL_CALL notifyClosing( const EventObject& Source ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      90             : 
      91             :         // XEventListener overridables
      92             :         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
      93             : 
      94             :     private:
      95             :         /** starts or stops being a CloseListener at the component
      96             : 
      97             :             Only to be called upon construction of the instance, or when the component
      98             :             is to be closed.
      99             : 
     100             :         @nofail
     101             :         */
     102             :         void    impl_nf_switchListening( bool _bListen );
     103             :     };
     104             : 
     105           0 :     CloseableComponentImpl::CloseableComponentImpl( const Reference< XInterface >& _rxComponent )
     106           0 :         :m_xCloseable( _rxComponent, UNO_QUERY )
     107             :     {
     108             :         DBG_ASSERT( m_xCloseable.is() || !_rxComponent.is(), "CloseableComponentImpl::CloseableComponentImpl: component is not an XCloseable!" );
     109           0 :         impl_nf_switchListening( true );
     110           0 :     }
     111             : 
     112           0 :     CloseableComponentImpl::~CloseableComponentImpl()
     113             :     {
     114           0 :         nf_closeComponent();
     115           0 :     }
     116             : 
     117           0 :     void CloseableComponentImpl::nf_closeComponent()
     118             :     {
     119           0 :         if ( !m_xCloseable.is() )
     120             :             // nothing to do
     121           0 :             return;
     122             : 
     123             :         // stop listening
     124           0 :         impl_nf_switchListening( false );
     125             : 
     126             :         // close
     127             :         try
     128             :         {
     129           0 :             m_xCloseable->close( sal_True );
     130             :         }
     131           0 :         catch( const CloseVetoException& ) { /* fine */ }
     132           0 :         catch( const Exception& )
     133             :         {
     134             :             OSL_FAIL( "CloseableComponentImpl::nf_closeComponent: caught an unexpected exception!" );
     135             :         }
     136             : 
     137             :         // reset
     138           0 :         m_xCloseable.clear();
     139             :     }
     140             : 
     141           0 :     void CloseableComponentImpl::impl_nf_switchListening( bool _bListen )
     142             :     {
     143           0 :         if ( !m_xCloseable.is() )
     144           0 :             return;
     145             : 
     146             :         try
     147             :         {
     148           0 :             if ( _bListen )
     149           0 :                 m_xCloseable->addCloseListener( this );
     150             :             else
     151           0 :                 m_xCloseable->removeCloseListener( this );
     152             :         }
     153           0 :         catch( const Exception& )
     154             :         {
     155             :             OSL_FAIL( "CloseableComponentImpl::impl_nf_switchListening: caught an exception!" );
     156             :         }
     157             :     }
     158             : 
     159           0 :     void SAL_CALL CloseableComponentImpl::queryClosing( const EventObject&
     160             :     #ifdef DBG_UTIL
     161             :     Source
     162             :     #endif
     163             :     , sal_Bool /*GetsOwnership*/ ) throw (CloseVetoException, RuntimeException, std::exception)
     164             :     {
     165             :         // as long as we live, somebody wants to keep the object alive. So, veto the
     166             :         // closing
     167             :         DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::queryClosing: where did this come from?" );
     168           0 :         throw CloseVetoException();
     169             :     }
     170             : 
     171           0 :     void SAL_CALL CloseableComponentImpl::notifyClosing( const EventObject&
     172             :     #ifdef DBG_UTIL
     173             :     Source
     174             :     #endif
     175             :     ) throw (RuntimeException, std::exception)
     176             :     {
     177             :         DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::notifyClosing: where did this come from?" );
     178             : 
     179             :         // this should be unreachable: As long as we're a CloseListener, we veto the closing. If we're going
     180             :         // to close the component ourself, then we revoke ourself as listener *before* the close call. So,
     181             :         // if this here fires, something went definitely wrong.
     182             :         OSL_FAIL( "CloseableComponentImpl::notifyClosing: unreachable!" );
     183           0 :     }
     184             : 
     185           0 :     void SAL_CALL CloseableComponentImpl::disposing( const EventObject&
     186             :     #ifdef DBG_UTIL
     187             :     Source
     188             :     #endif
     189             :     ) throw (RuntimeException, std::exception)
     190             :     {
     191             :         DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::disposing: where did this come from?" );
     192             :         OSL_FAIL( "CloseableComponentImpl::disposing: unreachable!" );
     193             :             // same reasoning for this assertion as in ->notifyClosing
     194           0 :     }
     195             : 
     196           0 :     CloseableComponent::CloseableComponent( const Reference< XInterface >& _rxComponent )
     197           0 :         :m_pImpl( new CloseableComponentImpl( _rxComponent ) )
     198             :     {
     199           0 :     }
     200             : 
     201           0 :     CloseableComponent::~CloseableComponent()
     202             :     {
     203             :         // close the component, deliver ownership to anybody who wants to veto the close
     204           0 :         m_pImpl->nf_closeComponent();
     205           0 :     }
     206             : 
     207             : }   // namespace utl
     208             : 
     209             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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