LCOV - code coverage report
Current view: top level - libreoffice/unotools/source/misc - eventlisteneradapter.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 43 56 76.8 %
Date: 2012-12-17 Functions: 11 14 78.6 %
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/eventlisteneradapter.hxx>
      21             : #include <osl/diagnose.h>
      22             : #include <cppuhelper/implbase1.hxx>
      23             : #include <comphelper/stl_types.hxx>
      24             : 
      25             : //.........................................................................
      26             : namespace utl
      27             : {
      28             : //.........................................................................
      29             : 
      30             :     using namespace ::com::sun::star::uno;
      31             :     using namespace ::com::sun::star::lang;
      32             : 
      33             :     //=====================================================================
      34             :     //= OEventListenerImpl
      35             :     //=====================================================================
      36        1918 :     class OEventListenerImpl : public ::cppu::WeakImplHelper1< XEventListener >
      37             :     {
      38             :     protected:
      39             :         OEventListenerAdapter*          m_pAdapter;
      40             :         Reference< XEventListener >     m_xKeepMeAlive;
      41             :             // imagine an implementation of XComponent which holds it's listeners with a weak reference ...
      42             :             // would be very bad if we don't hold ourself
      43             :         Reference< XComponent >         m_xComponent;
      44             : 
      45             :     public:
      46             :         OEventListenerImpl( OEventListenerAdapter* _pAdapter, const Reference< XComponent >& _rxComp );
      47             : 
      48             :         void                            dispose();
      49           0 :         const Reference< XComponent >&  getComponent() const { return m_xComponent; }
      50             : 
      51             :     protected:
      52             :         virtual void SAL_CALL disposing( const EventObject& _rSource ) throw (RuntimeException);
      53             :     };
      54             : 
      55             :     //---------------------------------------------------------------------
      56        2047 :     OEventListenerImpl::OEventListenerImpl( OEventListenerAdapter* _pAdapter, const Reference< XComponent >& _rxComp )
      57        2047 :         :m_pAdapter(_pAdapter)
      58             :     {
      59             :         OSL_ENSURE(m_pAdapter, "OEventListenerImpl::OEventListenerImpl: invalid adapter!");
      60             :         // no checks of _rxComp !!
      61             :         // (OEventListenerAdapter is responsible for this)
      62             : 
      63             :         // just in case addEventListener throws an exception ... don't initialize m_xKeepMeAlive before this
      64             :         // is done
      65        2047 :         Reference< XEventListener > xMeMyselfAndI = this;
      66        2047 :         _rxComp->addEventListener(xMeMyselfAndI);
      67             : 
      68        2047 :         m_xComponent = _rxComp;
      69        2047 :         m_xKeepMeAlive = xMeMyselfAndI;
      70        2047 :     }
      71             : 
      72             :     //---------------------------------------------------------------------
      73         959 :     void OEventListenerImpl::dispose()
      74             :     {
      75         959 :         if (m_xComponent.is())
      76             :         {
      77         320 :             m_xComponent->removeEventListener(m_xKeepMeAlive);
      78         320 :             m_xComponent.clear();
      79         320 :             m_xKeepMeAlive.clear();
      80             :         }
      81         959 :     }
      82             : 
      83             :     //---------------------------------------------------------------------
      84         909 :     void SAL_CALL OEventListenerImpl::disposing( const EventObject& _rSource ) throw (RuntimeException)
      85             :     {
      86         909 :         Reference< XEventListener > xDeleteUponLeaving = m_xKeepMeAlive;
      87         909 :         m_xKeepMeAlive.clear();
      88         909 :         m_xComponent.clear();
      89             : 
      90         909 :         m_pAdapter->_disposing(_rSource);
      91         909 :     }
      92             : 
      93             :     //=====================================================================
      94             :     //= OEventListenerAdapterImpl
      95             :     //=====================================================================
      96        3762 :     struct OEventListenerAdapterImpl
      97             :     {
      98             :     public:
      99             :         ::std::vector< void* >  aListeners;
     100             :     };
     101             : 
     102             :     //=====================================================================
     103             :     //= OEventListenerAdapter
     104             :     //=====================================================================
     105             :     //---------------------------------------------------------------------
     106        2259 :     OEventListenerAdapter::OEventListenerAdapter()
     107        2259 :         :m_pImpl(new OEventListenerAdapterImpl)
     108             :     {
     109        2259 :     }
     110             : 
     111             :     //---------------------------------------------------------------------
     112        1503 :     OEventListenerAdapter::~OEventListenerAdapter()
     113             :     {
     114        1503 :         stopAllComponentListening( );
     115        1503 :         delete m_pImpl;
     116        1503 :         m_pImpl = NULL;
     117        1503 :     }
     118             : 
     119             :     //---------------------------------------------------------------------
     120           0 :     void OEventListenerAdapter::stopComponentListening( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >& _rxComp )
     121             :     {
     122           0 :         if ( m_pImpl->aListeners.empty() )
     123           0 :             return;
     124             : 
     125           0 :         ::std::vector< void* >::iterator dispose = m_pImpl->aListeners.begin();
     126           0 :         do
     127             :         {
     128           0 :             OEventListenerImpl* pListenerImpl = static_cast< OEventListenerImpl* >( *dispose );
     129           0 :             if ( pListenerImpl->getComponent().get() == _rxComp.get() )
     130             :             {
     131           0 :                 pListenerImpl->dispose();
     132           0 :                 pListenerImpl->release();
     133           0 :                 dispose = m_pImpl->aListeners.erase( dispose );
     134             :             }
     135             :             else
     136           0 :                 ++dispose;
     137             :         }
     138           0 :         while ( dispose != m_pImpl->aListeners.end() );
     139             :     }
     140             : 
     141             :     //---------------------------------------------------------------------
     142        2762 :     void OEventListenerAdapter::stopAllComponentListening(  )
     143             :     {
     144       11163 :         for (   ::std::vector< void* >::const_iterator aDisposeLoop = m_pImpl->aListeners.begin();
     145        7442 :                 aDisposeLoop != m_pImpl->aListeners.end();
     146             :                 ++aDisposeLoop
     147             :             )
     148             :         {
     149         959 :             OEventListenerImpl* pListenerImpl = static_cast< OEventListenerImpl* >(*aDisposeLoop);
     150         959 :             pListenerImpl->dispose();
     151         959 :             pListenerImpl->release();
     152             :         }
     153        2762 :         m_pImpl->aListeners.clear();
     154        2762 :     }
     155             : 
     156             :     //---------------------------------------------------------------------
     157        2047 :     void OEventListenerAdapter::startComponentListening( const Reference< XComponent >& _rxComp )
     158             :     {
     159        2047 :         if (!_rxComp.is())
     160             :         {
     161             :             OSL_FAIL("OEventListenerAdapter::startComponentListening: invalid component!");
     162        2047 :             return;
     163             :         }
     164             : 
     165        2047 :         OEventListenerImpl* pListenerImpl = new OEventListenerImpl(this, _rxComp);
     166        2047 :         pListenerImpl->acquire();
     167        2047 :         m_pImpl->aListeners.push_back(pListenerImpl);
     168             :     }
     169             : 
     170             : //.........................................................................
     171             : }   // namespace utl
     172             : //.........................................................................
     173             : 
     174             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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