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 "UndoGuard.hxx"
      21             : #include "ChartModelClone.hxx"
      22             : #include "UndoActions.hxx"
      23             : 
      24             : #include <com/sun/star/container/XChild.hpp>
      25             : 
      26             : #include <tools/diagnose_ex.h>
      27             : 
      28             : using namespace ::com::sun::star;
      29             : 
      30             : using ::com::sun::star::uno::Reference;
      31             : using ::com::sun::star::uno::Sequence;
      32             : 
      33             : namespace chart
      34             : {
      35             : 
      36           0 : UndoGuard::UndoGuard( const OUString& i_undoString, const uno::Reference< document::XUndoManager > & i_undoManager,
      37             :                                const ModelFacet i_facet )
      38           0 :     :m_xChartModel( i_undoManager->getParent(), uno::UNO_QUERY_THROW )
      39             :     ,m_xUndoManager( i_undoManager )
      40             :     ,m_pDocumentSnapshot()
      41             :     ,m_aUndoString( i_undoString )
      42           0 :     ,m_bActionPosted( false )
      43             : {
      44           0 :     m_pDocumentSnapshot.reset( new ChartModelClone( m_xChartModel, i_facet ) );
      45           0 : }
      46             : 
      47           0 : UndoGuard::~UndoGuard()
      48             : {
      49           0 :     if ( !!m_pDocumentSnapshot )
      50           0 :         discardSnapshot();
      51           0 : }
      52             : 
      53           0 : void UndoGuard::commit()
      54             : {
      55           0 :     if ( !m_bActionPosted && !!m_pDocumentSnapshot )
      56             :     {
      57             :         try
      58             :         {
      59           0 :             const Reference< document::XUndoAction > xAction( new impl::UndoElement( m_aUndoString, m_xChartModel, m_pDocumentSnapshot ) );
      60           0 :             m_pDocumentSnapshot.reset();    // don't dispose, it's data went over to the UndoElement
      61           0 :             m_xUndoManager->addUndoAction( xAction );
      62             :         }
      63           0 :         catch( const uno::Exception& )
      64             :         {
      65             :             DBG_UNHANDLED_EXCEPTION();
      66             :         }
      67             :     }
      68           0 :     m_bActionPosted = true;
      69           0 : }
      70             : 
      71           0 : void UndoGuard::rollback()
      72             : {
      73           0 :     ENSURE_OR_RETURN_VOID( !!m_pDocumentSnapshot, "no snapshot!" );
      74           0 :     m_pDocumentSnapshot->applyToModel( m_xChartModel );
      75           0 :     discardSnapshot();
      76             : }
      77             : 
      78           0 : void UndoGuard::discardSnapshot()
      79             : {
      80           0 :     ENSURE_OR_RETURN_VOID( !!m_pDocumentSnapshot, "no snapshot!" );
      81           0 :     m_pDocumentSnapshot->dispose();
      82           0 :     m_pDocumentSnapshot.reset();
      83             : }
      84             : 
      85           0 : UndoLiveUpdateGuard::UndoLiveUpdateGuard( const OUString& i_undoString, const uno::Reference< document::XUndoManager >& i_undoManager )
      86           0 :     :UndoGuard( i_undoString, i_undoManager, E_MODEL )
      87             : {
      88           0 : }
      89             : 
      90           0 : UndoLiveUpdateGuard::~UndoLiveUpdateGuard()
      91             : {
      92           0 :     if ( !isActionPosted() )
      93           0 :         rollback();
      94           0 : }
      95             : 
      96           0 : UndoLiveUpdateGuardWithData::UndoLiveUpdateGuardWithData(
      97             :         const OUString& i_undoString, const uno::Reference< document::XUndoManager >& i_undoManager )
      98           0 :     :UndoGuard( i_undoString, i_undoManager, E_MODEL_WITH_DATA )
      99             : {
     100           0 : }
     101             : 
     102           0 : UndoLiveUpdateGuardWithData::~UndoLiveUpdateGuardWithData()
     103             : {
     104           0 :     if ( !isActionPosted() )
     105           0 :         rollback();
     106           0 : }
     107             : 
     108           0 : UndoGuardWithSelection::UndoGuardWithSelection(
     109             :         const OUString& i_undoString, const uno::Reference< document::XUndoManager >& i_undoManager )
     110           0 :     :UndoGuard( i_undoString, i_undoManager, E_MODEL_WITH_SELECTION )
     111             : {
     112           0 : }
     113             : 
     114           0 : UndoGuardWithSelection::~UndoGuardWithSelection()
     115             : {
     116           0 :     if ( !isActionPosted() )
     117           0 :         rollback();
     118           0 : }
     119             : 
     120           0 : HiddenUndoContext::HiddenUndoContext( const Reference< document::XUndoManager > & i_undoManager )
     121           0 :     :m_xUndoManager( i_undoManager )
     122             : {
     123           0 :     ENSURE_OR_THROW( m_xUndoManager.is(), "invalid undo manager!" );
     124             :     try
     125             :     {
     126           0 :         m_xUndoManager->enterHiddenUndoContext();
     127             :     }
     128           0 :     catch( const uno::Exception& )
     129             :     {
     130             :         DBG_UNHANDLED_EXCEPTION();
     131           0 :         m_xUndoManager.clear();
     132             :             // prevents the leaveUndoContext in the dtor
     133             :     }
     134           0 : }
     135             : 
     136           0 : HiddenUndoContext::~HiddenUndoContext()
     137             : {
     138             :     try
     139             :     {
     140           0 :         if ( m_xUndoManager.is() )
     141           0 :             m_xUndoManager->leaveUndoContext();
     142             :     }
     143           0 :     catch( const uno::Exception& )
     144             :     {
     145             :         DBG_UNHANDLED_EXCEPTION();
     146             :     }
     147           0 : }
     148             : 
     149             : } //  namespace chart
     150             : 
     151             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */