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       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             : 
      21             : #include "ModifyListenerCallBack.hxx"
      22             : #include "MutexContainer.hxx"
      23             : #include <cppuhelper/compbase1.hxx>
      24             : 
      25             : using namespace ::com::sun::star;
      26             : using ::com::sun::star::uno::Reference;
      27             : 
      28             : namespace chart {
      29             : 
      30             : typedef ::cppu::WeakComponentImplHelper1<
      31             :         ::com::sun::star::util::XModifyListener >
      32             :     ModifyListenerCallBack_Base;
      33             : 
      34             : class ModifyListenerCallBack_impl
      35             :     : public ::chart::MutexContainer
      36             :     , public ModifyListenerCallBack_Base
      37             : {
      38             : public:
      39             :     explicit ModifyListenerCallBack_impl( const Link& rCallBack );
      40             :     virtual ~ModifyListenerCallBack_impl();
      41             : 
      42             :     void startListening( const Reference< util::XModifyBroadcaster >& xBroadcaster );
      43             :     void stopListening();
      44             : 
      45             :     //XModifyListener
      46             :     virtual void SAL_CALL modified( const lang::EventObject& aEvent ) throw (uno::RuntimeException);
      47             : 
      48             :     //XEventListener
      49             :     virtual void SAL_CALL disposing( const lang::EventObject& Source ) throw (uno::RuntimeException);
      50             : 
      51             :     using ::cppu::WeakComponentImplHelperBase::disposing;
      52             : 
      53             : private:
      54             :     Link m_aLink;//will be callef on modify
      55             :     Reference< util::XModifyBroadcaster > m_xBroadcaster;//broadcaster to listen at
      56             : };
      57             : 
      58             : 
      59           0 : ModifyListenerCallBack_impl::ModifyListenerCallBack_impl( const Link& rCallBack )
      60             :                         : ModifyListenerCallBack_Base( m_aMutex )
      61             :                         , m_aLink( rCallBack )
      62           0 :                         , m_xBroadcaster(0)
      63             : {
      64           0 : }
      65             : 
      66           0 : ModifyListenerCallBack_impl::~ModifyListenerCallBack_impl()
      67             : {
      68           0 : }
      69             : 
      70             : //XModifyListener
      71           0 : void SAL_CALL ModifyListenerCallBack_impl::modified( const lang::EventObject& /*aEvent*/ ) throw (uno::RuntimeException)
      72             : {
      73           0 :     m_aLink.Call(0);
      74           0 : }
      75             : 
      76             : //XEventListener
      77           0 : void SAL_CALL ModifyListenerCallBack_impl::disposing( const lang::EventObject& /*Source*/ ) throw (uno::RuntimeException)
      78             : {
      79           0 :     m_xBroadcaster.clear();
      80           0 : }
      81             : 
      82           0 : void ModifyListenerCallBack_impl::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
      83             : {
      84           0 :     if( m_xBroadcaster == xBroadcaster )
      85           0 :         return;
      86             : 
      87           0 :     stopListening();
      88           0 :     m_xBroadcaster = xBroadcaster;
      89           0 :     if( m_xBroadcaster.is() )
      90           0 :         m_xBroadcaster->addModifyListener( this );
      91             : }
      92           0 : void ModifyListenerCallBack_impl::stopListening()
      93             : {
      94           0 :     if( m_xBroadcaster.is() )
      95             :     {
      96           0 :         m_xBroadcaster->removeModifyListener( this );
      97           0 :         m_xBroadcaster.clear();
      98             :     }
      99           0 : }
     100             : 
     101             : //-------------------------------------------
     102             : 
     103           0 : ModifyListenerCallBack::ModifyListenerCallBack( const Link& rCallBack )
     104           0 :                         : pModifyListener_impl( new ModifyListenerCallBack_impl(rCallBack) )
     105           0 :                         , m_xModifyListener( pModifyListener_impl )
     106             : {
     107           0 : }
     108             : 
     109           0 : ModifyListenerCallBack::~ModifyListenerCallBack()
     110             : {
     111           0 :     stopListening();
     112           0 : }
     113             : 
     114           0 : void ModifyListenerCallBack::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
     115             : {
     116           0 :     pModifyListener_impl->startListening( xBroadcaster );
     117           0 : }
     118           0 : void ModifyListenerCallBack::stopListening()
     119             : {
     120           0 :     pModifyListener_impl->stopListening();
     121           0 : }
     122             : 
     123             : } // namespace chart
     124             : 
     125             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */