LCOV - code coverage report
Current view: top level - framework/source/fwe/helper - documentundoguard.cxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 45 67 67.2 %
Date: 2015-06-13 12:38:46 Functions: 14 22 63.6 %
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 <framework/documentundoguard.hxx>
      21             : 
      22             : #include <com/sun/star/document/XUndoManagerSupplier.hpp>
      23             : 
      24             : #include <cppuhelper/implbase1.hxx>
      25             : #include <rtl/ref.hxx>
      26             : #include <tools/diagnose_ex.h>
      27             : 
      28             : namespace framework
      29             : {
      30             : 
      31             :     using ::com::sun::star::uno::Reference;
      32             :     using ::com::sun::star::uno::XInterface;
      33             :     using ::com::sun::star::uno::UNO_QUERY;
      34             :     using ::com::sun::star::uno::UNO_QUERY_THROW;
      35             :     using ::com::sun::star::uno::Exception;
      36             :     using ::com::sun::star::uno::RuntimeException;
      37             :     using ::com::sun::star::uno::Any;
      38             :     using ::com::sun::star::uno::makeAny;
      39             :     using ::com::sun::star::uno::Sequence;
      40             :     using ::com::sun::star::uno::Type;
      41             :     using ::com::sun::star::document::XUndoManagerSupplier;
      42             :     using ::com::sun::star::document::XUndoManager;
      43             :     using ::com::sun::star::document::XUndoManagerListener;
      44             :     using ::com::sun::star::document::UndoManagerEvent;
      45             :     using ::com::sun::star::lang::EventObject;
      46             : 
      47             :     //= UndoManagerContextListener
      48             : 
      49             :     typedef ::cppu::WeakImplHelper1 <   XUndoManagerListener
      50             :                                     >   UndoManagerContextListener_Base;
      51         160 :     class UndoManagerContextListener : public UndoManagerContextListener_Base
      52             :     {
      53             :     public:
      54          80 :         UndoManagerContextListener( const Reference< XUndoManager >& i_undoManager )
      55             :             :m_xUndoManager( i_undoManager )
      56             :             ,m_nRelativeContextDepth( 0 )
      57          80 :             ,m_documentDisposed( false )
      58             :         {
      59          80 :             osl_atomic_increment( &m_refCount );
      60             :             {
      61          80 :                 m_xUndoManager->addUndoManagerListener( this );
      62             :             }
      63          80 :             osl_atomic_decrement( &m_refCount );
      64          80 :         }
      65             : 
      66          80 :         void finish()
      67             :         {
      68             :             OSL_ENSURE( m_nRelativeContextDepth >= 0, "UndoManagerContextListener: more contexts left than entered?" );
      69             : 
      70          80 :             if ( m_documentDisposed )
      71          81 :                 return;
      72             : 
      73             :             // work with a copy of m_nRelativeContextDepth, to be independent from possible bugs in the
      74             :             // listener notifications (where it would be decremented with every leaveUndoContext)
      75          79 :             sal_Int32 nDepth = m_nRelativeContextDepth;
      76         161 :             while ( nDepth-- > 0 )
      77             :             {
      78           3 :                 m_xUndoManager->leaveUndoContext();
      79             :             }
      80          79 :             m_xUndoManager->removeUndoManagerListener( this );
      81             :         }
      82             : 
      83             :         // XUndoManagerListener
      84             :         virtual void SAL_CALL undoActionAdded( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      85             :         virtual void SAL_CALL actionUndone( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      86             :         virtual void SAL_CALL actionRedone( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      87             :         virtual void SAL_CALL allActionsCleared( const EventObject& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      88             :         virtual void SAL_CALL redoActionsCleared( const EventObject& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      89             :         virtual void SAL_CALL resetAll( const EventObject& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      90             :         virtual void SAL_CALL enteredContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      91             :         virtual void SAL_CALL enteredHiddenContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      92             :         virtual void SAL_CALL leftContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      93             :         virtual void SAL_CALL leftHiddenContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      94             :         virtual void SAL_CALL cancelledContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      95             : 
      96             :         // XEventListener
      97             :         virtual void SAL_CALL disposing( const EventObject& i_event ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      98             : 
      99             :     private:
     100             :         Reference< XUndoManager > const m_xUndoManager;
     101             :         oslInterlockedCount             m_nRelativeContextDepth;
     102             :         bool                            m_documentDisposed;
     103             :     };
     104             : 
     105        4328 :     void SAL_CALL UndoManagerContextListener::undoActionAdded( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     106             :     {
     107             :         (void)i_event;
     108             :         // not interested in
     109        4328 :     }
     110             : 
     111           0 :     void SAL_CALL UndoManagerContextListener::actionUndone( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     112             :     {
     113             :         (void)i_event;
     114             :         // not interested in
     115           0 :     }
     116             : 
     117           0 :     void SAL_CALL UndoManagerContextListener::actionRedone( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     118             :     {
     119             :         (void)i_event;
     120             :         // not interested in
     121           0 :     }
     122             : 
     123           0 :     void SAL_CALL UndoManagerContextListener::allActionsCleared( const EventObject& i_event ) throw (RuntimeException, std::exception)
     124             :     {
     125             :         (void)i_event;
     126             :         // not interested in
     127           0 :     }
     128             : 
     129           0 :     void SAL_CALL UndoManagerContextListener::redoActionsCleared( const EventObject& i_event ) throw (RuntimeException, std::exception)
     130             :     {
     131             :         (void)i_event;
     132             :         // not interested in
     133           0 :     }
     134             : 
     135           0 :     void SAL_CALL UndoManagerContextListener::resetAll( const EventObject& i_event ) throw (RuntimeException, std::exception)
     136             :     {
     137             :         (void)i_event;
     138           0 :         m_nRelativeContextDepth = 0;
     139           0 :     }
     140             : 
     141           8 :     void SAL_CALL UndoManagerContextListener::enteredContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     142             :     {
     143             :         (void)i_event;
     144           8 :         osl_atomic_increment( &m_nRelativeContextDepth );
     145           8 :     }
     146             : 
     147           0 :     void SAL_CALL UndoManagerContextListener::enteredHiddenContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     148             :     {
     149             :         (void)i_event;
     150           0 :         osl_atomic_increment( &m_nRelativeContextDepth );
     151           0 :     }
     152             : 
     153           0 :     void SAL_CALL UndoManagerContextListener::leftContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     154             :     {
     155             :         (void)i_event;
     156           0 :         osl_atomic_decrement( &m_nRelativeContextDepth );
     157           0 :     }
     158             : 
     159           0 :     void SAL_CALL UndoManagerContextListener::leftHiddenContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     160             :     {
     161             :         (void)i_event;
     162           0 :         osl_atomic_decrement( &m_nRelativeContextDepth );
     163           0 :     }
     164             : 
     165           7 :     void SAL_CALL UndoManagerContextListener::cancelledContext( const UndoManagerEvent& i_event ) throw (RuntimeException, std::exception)
     166             :     {
     167             :         (void)i_event;
     168           7 :         osl_atomic_decrement( &m_nRelativeContextDepth );
     169           7 :     }
     170             : 
     171           1 :     void SAL_CALL UndoManagerContextListener::disposing( const EventObject& i_event ) throw (RuntimeException, std::exception)
     172             :     {
     173             :         (void)i_event;
     174           1 :         m_documentDisposed = true;
     175           1 :     }
     176             : 
     177             :     //= DocumentUndoGuard_Data
     178             : 
     179         160 :     struct DocumentUndoGuard_Data
     180             :     {
     181             :         Reference< XUndoManager >                       xUndoManager;
     182             :         ::rtl::Reference< UndoManagerContextListener >  pContextListener;
     183             :     };
     184             : 
     185             :     namespace
     186             :     {
     187             : 
     188          80 :         void lcl_init( DocumentUndoGuard_Data& i_data, const Reference< XInterface >& i_undoSupplierComponent )
     189             :         {
     190             :             try
     191             :             {
     192          80 :                 Reference< XUndoManagerSupplier > xUndoSupplier( i_undoSupplierComponent, UNO_QUERY );
     193          80 :                 if ( xUndoSupplier.is() )
     194          80 :                     i_data.xUndoManager.set( xUndoSupplier->getUndoManager(), UNO_QUERY_THROW );
     195             : 
     196          80 :                 if ( i_data.xUndoManager.is() )
     197          80 :                     i_data.pContextListener.set( new UndoManagerContextListener( i_data.xUndoManager ) );
     198             :             }
     199           0 :             catch( const Exception& )
     200             :             {
     201             :                 DBG_UNHANDLED_EXCEPTION();
     202             :             }
     203          80 :         }
     204             : 
     205          80 :         void lcl_restore( DocumentUndoGuard_Data& i_data )
     206             :         {
     207             :             try
     208             :             {
     209          80 :                 if ( i_data.pContextListener.is() )
     210          80 :                     i_data.pContextListener->finish();
     211          80 :                 i_data.pContextListener.clear();
     212             :             }
     213           0 :             catch( const Exception& )
     214             :             {
     215             :                 DBG_UNHANDLED_EXCEPTION();
     216             :             }
     217          80 :         }
     218             :     }
     219             : 
     220             :     //= DocumentUndoGuard
     221             : 
     222          80 :     DocumentUndoGuard::DocumentUndoGuard( const Reference< XInterface >& i_undoSupplierComponent )
     223          80 :         :m_xData( new DocumentUndoGuard_Data )
     224             :     {
     225          80 :         lcl_init( *m_xData, i_undoSupplierComponent );
     226          80 :     }
     227             : 
     228         160 :     DocumentUndoGuard::~DocumentUndoGuard()
     229             :     {
     230          80 :         lcl_restore( *m_xData );
     231          80 :     }
     232             : 
     233             : } // namespace framework
     234             : 
     235             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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