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       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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      19                 :            :  * GNU Lesser General Public License version 3 for more details
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      27                 :            :  ************************************************************************/
      28                 :            : 
      29                 :            : #include <com/sun/star/util/XModifyListener.hpp>
      30                 :            : 
      31                 :            : #include "listenercalls.hxx"
      32                 :            : 
      33                 :            : using namespace com::sun::star;
      34                 :            : 
      35                 :            : //------------------------------------------------------------------------
      36                 :            : 
      37                 :          0 : ScUnoListenerCalls::ScUnoListenerCalls()
      38                 :            : {
      39                 :          0 : }
      40                 :            : 
      41                 :          0 : ScUnoListenerCalls::~ScUnoListenerCalls()
      42                 :            : {
      43                 :            :     OSL_ENSURE( aEntries.empty(), "unhandled listener calls remaining" );
      44                 :          0 : }
      45                 :            : 
      46                 :          0 : void ScUnoListenerCalls::Add( const uno::Reference<util::XModifyListener>& rListener,
      47                 :            :                                 const lang::EventObject& rEvent )
      48                 :            : {
      49         [ #  # ]:          0 :     if ( rListener.is() )
      50         [ #  # ]:          0 :         aEntries.push_back( ScUnoListenerEntry( rListener, rEvent ) );
      51                 :          0 : }
      52                 :            : 
      53                 :          0 : void ScUnoListenerCalls::ExecuteAndClear()
      54                 :            : {
      55                 :            :     //  Execute all stored calls and remove them from the list.
      56                 :            :     //  During each modified() call, Add may be called again.
      57                 :            :     //  These new calls are executed here, too.
      58                 :            : 
      59         [ #  # ]:          0 :     if (!aEntries.empty())
      60                 :            :     {
      61                 :          0 :         std::list<ScUnoListenerEntry>::iterator aItr(aEntries.begin());
      62                 :          0 :         std::list<ScUnoListenerEntry>::iterator aEndItr(aEntries.end());
      63         [ #  # ]:          0 :         while ( aItr != aEndItr )
      64                 :            :         {
      65         [ #  # ]:          0 :             ScUnoListenerEntry aEntry = *aItr;
      66                 :            :             try
      67                 :            :             {
      68 [ #  # ][ #  # ]:          0 :                 aEntry.xListener->modified( aEntry.aEvent );
      69                 :            :             }
      70         [ #  # ]:          0 :             catch ( const uno::RuntimeException& )
      71                 :            :             {
      72                 :            :                 // the listener is an external object and may throw a RuntimeException
      73                 :            :                 // for reasons we don't know
      74                 :            :             }
      75                 :            : 
      76                 :            :             //  New calls that are added during the modified() call are appended to the end
      77                 :            :             //  of aEntries, so the loop will catch them, too (as long as erase happens
      78                 :            :             //  after modified).
      79                 :            : 
      80         [ #  # ]:          0 :             aItr = aEntries.erase(aItr);
      81         [ #  # ]:          0 :         }
      82                 :            :     }
      83         [ #  # ]:          0 : }
      84                 :            : 
      85                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */