LCOV - code coverage report
Current view: top level - libreoffice/unotools/source/misc - sharedunocomponent.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 8 43 18.6 %
Date: 2012-12-27 Functions: 2 12 16.7 %
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 <unotools/sharedunocomponent.hxx>
      21             : #include <com/sun/star/lang/XComponent.hpp>
      22             : #include <com/sun/star/util/XCloseable.hpp>
      23             : #include <cppuhelper/implbase1.hxx>
      24             : #include <tools/debug.hxx>
      25             : 
      26             : //............................................................................
      27             : namespace utl
      28             : {
      29             : //............................................................................
      30             : 
      31             :     using ::com::sun::star::uno::XInterface;
      32             :     using ::com::sun::star::uno::Reference;
      33             :     using ::com::sun::star::uno::Exception;
      34             :     using ::com::sun::star::uno::UNO_QUERY;
      35             :     using ::com::sun::star::uno::RuntimeException;
      36             :     using ::com::sun::star::lang::XComponent;
      37             :     using ::com::sun::star::lang::EventObject;
      38             :     using ::com::sun::star::util::XCloseable;
      39             :     using ::com::sun::star::util::XCloseListener;
      40             :     using ::com::sun::star::util::CloseVetoException;
      41             : 
      42             :     //========================================================================
      43             :     //= DisposableComponent
      44             :     //========================================================================
      45             :     //------------------------------------------------------------------------
      46           2 :     DisposableComponent::DisposableComponent( const Reference< XInterface >& _rxComponent )
      47           2 :         :m_xComponent( _rxComponent, UNO_QUERY )
      48             :     {
      49             :         DBG_ASSERT( m_xComponent.is() || !_rxComponent.is(), "DisposableComponent::DisposableComponent: should be an XComponent!" );
      50           2 :     }
      51             : 
      52             :     //------------------------------------------------------------------------
      53           4 :     DisposableComponent::~DisposableComponent()
      54             :     {
      55           2 :         if ( m_xComponent.is() )
      56             :         {
      57             :             try
      58             :             {
      59           2 :                 m_xComponent->dispose();
      60             :             }
      61           0 :             catch( const Exception& )
      62             :             {
      63             :                 OSL_FAIL( "DisposableComponent::~DisposableComponent: caught an exception!" );
      64             :             }
      65           2 :             m_xComponent.clear();
      66             :         }
      67           2 :     }
      68             : 
      69             :     //========================================================================
      70             :     //= CloseableComponentImpl
      71             :     //========================================================================
      72             :     DBG_NAME( CloseableComponentImpl )
      73             :     typedef ::cppu::WeakImplHelper1 <   XCloseListener
      74             :                                     >   CloseableComponentImpl_Base;
      75             :     class CloseableComponentImpl : public CloseableComponentImpl_Base
      76             :     {
      77             :     private:
      78             :         Reference< XCloseable > m_xCloseable;
      79             : 
      80             :     public:
      81             :         CloseableComponentImpl( const Reference< XInterface >& _rxComponent );
      82             : 
      83             :         /** closes the component
      84             : 
      85             :             @nofail
      86             :         */
      87             :         void    nf_closeComponent();
      88             : 
      89             :     protected:
      90             :         virtual ~CloseableComponentImpl();
      91             : 
      92             :         // XCloseListener overridables
      93             :         virtual void SAL_CALL queryClosing( const EventObject& Source, ::sal_Bool GetsOwnership ) throw (CloseVetoException, RuntimeException);
      94             :         virtual void SAL_CALL notifyClosing( const EventObject& Source ) throw (RuntimeException);
      95             : 
      96             :         // XEventListener overridables
      97             :         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException);
      98             : 
      99             :     private:
     100             :         /** starts or stops being a CloseListener at the component
     101             : 
     102             :             Only to be called upon construction of the instance, or when the component
     103             :             is to be closed.
     104             : 
     105             :         @nofail
     106             :         */
     107             :         void    impl_nf_switchListening( bool _bListen );
     108             : 
     109             : 
     110             :     private:
     111             :         CloseableComponentImpl();                                           // never implemented
     112             :         CloseableComponentImpl( const CloseableComponentImpl& );            // never implemented
     113             :         CloseableComponentImpl& operator=( const CloseableComponentImpl& ); // never implemented
     114             :     };
     115             : 
     116             :     //------------------------------------------------------------------------
     117           0 :     CloseableComponentImpl::CloseableComponentImpl( const Reference< XInterface >& _rxComponent )
     118           0 :         :m_xCloseable( _rxComponent, UNO_QUERY )
     119             :     {
     120             :         DBG_CTOR( CloseableComponentImpl, NULL );
     121             :         DBG_ASSERT( m_xCloseable.is() || !_rxComponent.is(), "CloseableComponentImpl::CloseableComponentImpl: component is not an XCloseable!" );
     122           0 :         impl_nf_switchListening( true );
     123           0 :     }
     124             :     //------------------------------------------------------------------------
     125           0 :     CloseableComponentImpl::~CloseableComponentImpl()
     126             :     {
     127           0 :         nf_closeComponent();
     128             :         DBG_DTOR( CloseableComponentImpl, NULL );
     129           0 :     }
     130             : 
     131             :     //------------------------------------------------------------------------
     132           0 :     void CloseableComponentImpl::nf_closeComponent()
     133             :     {
     134           0 :         if ( !m_xCloseable.is() )
     135             :             // nothing to do
     136           0 :             return;
     137             : 
     138             :         // stop listening
     139           0 :         impl_nf_switchListening( false );
     140             : 
     141             :         // close
     142             :         try
     143             :         {
     144           0 :             m_xCloseable->close( sal_True );
     145             :         }
     146           0 :         catch( const CloseVetoException& ) { /* fine */ }
     147           0 :         catch( const Exception& )
     148             :         {
     149             :             OSL_FAIL( "CloseableComponentImpl::nf_closeComponent: caught an unexpected exception!" );
     150             :         }
     151             : 
     152             :         // reset
     153           0 :         m_xCloseable.clear();
     154             :     }
     155             : 
     156             :     //------------------------------------------------------------------------
     157           0 :     void CloseableComponentImpl::impl_nf_switchListening( bool _bListen )
     158             :     {
     159           0 :         if ( !m_xCloseable.is() )
     160           0 :             return;
     161             : 
     162             :         try
     163             :         {
     164           0 :             if ( _bListen )
     165           0 :                 m_xCloseable->addCloseListener( this );
     166             :             else
     167           0 :                 m_xCloseable->removeCloseListener( this );
     168             :         }
     169           0 :         catch( const Exception& )
     170             :         {
     171             :             OSL_FAIL( "CloseableComponentImpl::impl_nf_switchListening: caught an exception!" );
     172             :         }
     173             :     }
     174             : 
     175             :     //--------------------------------------------------------------------
     176           0 :     void SAL_CALL CloseableComponentImpl::queryClosing( const EventObject&
     177             :     #ifdef DBG_UTIL
     178             :     Source
     179             :     #endif
     180             :     , ::sal_Bool /*GetsOwnership*/ ) throw (CloseVetoException, RuntimeException)
     181             :     {
     182             :         // as long as we live, somebody wants to keep the object alive. So, veto the
     183             :         // closing
     184             :         DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::queryClosing: where did this come from?" );
     185           0 :         throw CloseVetoException();
     186             :     }
     187             : 
     188             :     //--------------------------------------------------------------------
     189           0 :     void SAL_CALL CloseableComponentImpl::notifyClosing( const EventObject&
     190             :     #ifdef DBG_UTIL
     191             :     Source
     192             :     #endif
     193             :     ) throw (RuntimeException)
     194             :     {
     195             :         DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::notifyClosing: where did this come from?" );
     196             : 
     197             :         // this should be unreachable: As long as we're a CloseListener, we veto the closing. If we're going
     198             :         // to close the component ourself, then we revoke ourself as listener *before* the close call. So,
     199             :         // if this here fires, something went definately wrong.
     200             :         OSL_FAIL( "CloseableComponentImpl::notifyClosing: unreachable!" );
     201           0 :     }
     202             : 
     203             :     //--------------------------------------------------------------------
     204           0 :     void SAL_CALL CloseableComponentImpl::disposing( const EventObject&
     205             :     #ifdef DBG_UTIL
     206             :     Source
     207             :     #endif
     208             :     ) throw (RuntimeException)
     209             :     {
     210             :         DBG_ASSERT( Source.Source == m_xCloseable, "CloseableComponentImpl::disposing: where did this come from?" );
     211             :         OSL_FAIL( "CloseableComponentImpl::disposing: unreachable!" );
     212             :             // same reasoning for this assertion as in ->notifyClosing
     213           0 :     }
     214             : 
     215             :     //========================================================================
     216             :     //= CloseableComponentImpl
     217             :     //========================================================================
     218             :     DBG_NAME( CloseableComponent )
     219             :     //------------------------------------------------------------------------
     220           0 :     CloseableComponent::CloseableComponent( const Reference< XInterface >& _rxComponent )
     221           0 :         :m_pImpl( new CloseableComponentImpl( _rxComponent ) )
     222             :     {
     223             :         DBG_CTOR( CloseableComponent, NULL );
     224           0 :     }
     225             : 
     226             :     //------------------------------------------------------------------------
     227           0 :     CloseableComponent::~CloseableComponent()
     228             :     {
     229             :         // close the component, deliver ownership to anybody who wants to veto the close
     230           0 :         m_pImpl->nf_closeComponent();
     231             :         DBG_DTOR( CloseableComponent, NULL );
     232           0 :     }
     233             : 
     234             : //............................................................................
     235             : }   // namespace utl
     236             : //............................................................................
     237             : 
     238             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

Generated by: LCOV version 1.10