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 <com/sun/star/util/XModifyListener.hpp>
      21             : #include <osl/diagnose.h>
      22             : 
      23             : #include "listenercalls.hxx"
      24             : 
      25             : using namespace com::sun::star;
      26             : 
      27          61 : ScUnoListenerCalls::ScUnoListenerCalls()
      28             : {
      29          61 : }
      30             : 
      31          61 : ScUnoListenerCalls::~ScUnoListenerCalls()
      32             : {
      33             :     OSL_ENSURE( aEntries.empty(), "unhandled listener calls remaining" );
      34          61 : }
      35             : 
      36         234 : void ScUnoListenerCalls::Add( const uno::Reference<util::XModifyListener>& rListener,
      37             :                                 const lang::EventObject& rEvent )
      38             : {
      39         234 :     if ( rListener.is() )
      40         234 :         aEntries.push_back( ScUnoListenerEntry( rListener, rEvent ) );
      41         234 : }
      42             : 
      43         244 : void ScUnoListenerCalls::ExecuteAndClear()
      44             : {
      45             :     //  Execute all stored calls and remove them from the list.
      46             :     //  During each modified() call, Add may be called again.
      47             :     //  These new calls are executed here, too.
      48             : 
      49         244 :     if (!aEntries.empty())
      50             :     {
      51          61 :         std::list<ScUnoListenerEntry>::iterator aItr(aEntries.begin());
      52          61 :         std::list<ScUnoListenerEntry>::iterator aEndItr(aEntries.end());
      53         356 :         while ( aItr != aEndItr )
      54             :         {
      55         234 :             ScUnoListenerEntry aEntry = *aItr;
      56             :             try
      57             :             {
      58         234 :                 aEntry.xListener->modified( aEntry.aEvent );
      59             :             }
      60           0 :             catch ( const uno::RuntimeException& )
      61             :             {
      62             :                 // the listener is an external object and may throw a RuntimeException
      63             :                 // for reasons we don't know
      64             :             }
      65             : 
      66             :             //  New calls that are added during the modified() call are appended to the end
      67             :             //  of aEntries, so the loop will catch them, too (as long as erase happens
      68             :             //  after modified).
      69             : 
      70         234 :             aItr = aEntries.erase(aItr);
      71         234 :         }
      72             :     }
      73         244 : }
      74             : 
      75             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */