LCOV - code coverage report
Current view: top level - libreoffice/comphelper/source/misc - weakeventlistener.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 15 0.0 %
Date: 2012-12-27 Functions: 0 4 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 <comphelper/weakeventlistener.hxx>
      21             : #include <osl/diagnose.h>
      22             : 
      23             : 
      24             : //.........................................................................
      25             : namespace comphelper
      26             : {
      27             : //.........................................................................
      28             : 
      29             :     using namespace ::com::sun::star::uno;
      30             :     using namespace ::com::sun::star::lang;
      31             : 
      32             :     //=====================================================================
      33             :     //= OWeakListenerAdapter
      34             :     //=====================================================================
      35             :     //---------------------------------------------------------------------
      36           0 :     OWeakListenerAdapterBase::~OWeakListenerAdapterBase()
      37             :     {
      38           0 :     }
      39             : 
      40             :     //=====================================================================
      41             :     //= OWeakEventListenerAdapter
      42             :     //=====================================================================
      43             :     //---------------------------------------------------------------------
      44           0 :     OWeakEventListenerAdapter::OWeakEventListenerAdapter( Reference< XWeak > _rxListener, Reference< XComponent > _rxBroadcaster )
      45           0 :         :OWeakEventListenerAdapter_Base( _rxListener, _rxBroadcaster )
      46             :     {
      47             :         // add ourself as listener to the broadcaster
      48             :         OSL_ENSURE( _rxBroadcaster.is(), "OWeakEventListenerAdapter::OWeakEventListenerAdapter: invalid broadcaster!" );
      49           0 :         if ( _rxBroadcaster.is() )
      50             :         {
      51           0 :             osl_atomic_increment( &m_refCount );
      52             :             {
      53           0 :                 _rxBroadcaster->addEventListener( this );
      54             :             }
      55           0 :             osl_atomic_decrement( &m_refCount );
      56             :             OSL_ENSURE( m_refCount > 0, "OWeakEventListenerAdapter::OWeakEventListenerAdapter: oops - not to be used with implementations which hold their listeners weak!" );
      57             :                 // the one and only reason for this adapter class (A) is to add as listener to a component (C) which
      58             :                 // holds its listeners hard, and forward all calls then to another listener (L) which is
      59             :                 // held weak by A.
      60             :                 // Now if C holds listeners weak, then we do not need A, we can add L directly to C.
      61             :         }
      62             : 
      63             :         OSL_ENSURE( getListener().is(), "OWeakEventListenerAdapter::OWeakEventListenerAdapter: invalid listener (does not support the XEventListener interface)!" );
      64           0 :     }
      65             : 
      66             :     //---------------------------------------------------------------------
      67           0 :     void SAL_CALL OWeakEventListenerAdapter::disposing( )
      68             :     {
      69           0 :         Reference< XComponent > xBroadcaster( getBroadcaster( ), UNO_QUERY );
      70             :         OSL_ENSURE( xBroadcaster.is(), "OWeakEventListenerAdapter::disposing: broadcaster is invalid in the meantime! How this?" );
      71           0 :         if ( xBroadcaster.is() )
      72             :         {
      73           0 :             xBroadcaster->removeEventListener( this );
      74             :         }
      75             : 
      76           0 :         resetListener();
      77           0 :     }
      78             : 
      79             : //.........................................................................
      80             : }   // namespace comphelper
      81             : //.........................................................................
      82             : 
      83             : 
      84             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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