/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
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 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#include "precompiled_dbaccess.hxx"

#include "dbaundomanager.hxx"
#include "singledoccontroller.hxx"
#include "browserids.hxx"
#include "dbu_misc.hrc"
#include "dbustrings.hrc"
#include "moduledbu.hxx"

/** === begin UNO includes === **/
/** === end UNO includes === **/

#include <svl/undo.hxx>
#include <osl/diagnose.h>

#include <boost/scoped_ptr.hpp>

//......................................................................................................................
namespace dbaui
{
//......................................................................................................................

    /** === begin UNO using === **/
    using ::com::sun::star::uno::Reference;
    using ::com::sun::star::uno::XInterface;
    using ::com::sun::star::uno::UNO_QUERY;
    using ::com::sun::star::uno::UNO_QUERY_THROW;
    using ::com::sun::star::uno::UNO_SET_THROW;
    using ::com::sun::star::uno::Exception;
    using ::com::sun::star::uno::RuntimeException;
    using ::com::sun::star::uno::Any;
    using ::com::sun::star::uno::makeAny;
    using ::com::sun::star::uno::Sequence;
    using ::com::sun::star::uno::Type;
    using ::com::sun::star::document::XUndoManager;
    using ::com::sun::star::lang::XMultiServiceFactory;
    using ::com::sun::star::beans::PropertyValue;
    using ::com::sun::star::lang::EventObject;
    /** === end UNO using === **/

    //==================================================================================================================
    //= OSingleDocumentController_Data
    //==================================================================================================================
    struct OSingleDocumentController_Data
    {
        ::boost::scoped_ptr< UndoManager >  m_pUndoManager;

        OSingleDocumentController_Data( ::cppu::OWeakObject& i_parent, ::osl::Mutex& i_mutex )
            :m_pUndoManager( new UndoManager( i_parent, i_mutex ) )
        {
        }
    };

    //==================================================================================================================
    //= OSingleDocumentController
    //==================================================================================================================
    //------------------------------------------------------------------------------------------------------------------
    OSingleDocumentController::OSingleDocumentController( const Reference< XMultiServiceFactory >& _rxORB )
        :OSingleDocumentController_Base( _rxORB )
        ,m_pData( new OSingleDocumentController_Data( *this, getMutex() ) )
    {
    }

    //------------------------------------------------------------------------------------------------------------------
    OSingleDocumentController::~OSingleDocumentController()
    {
    }

    // -----------------------------------------------------------------------------
    void SAL_CALL OSingleDocumentController::disposing()
    {
        OSingleDocumentController_Base::disposing();
        ClearUndoManager();
        m_pData->m_pUndoManager->disposing();
    }

    // -----------------------------------------------------------------------------
    void SAL_CALL OSingleDocumentController::disposing( const EventObject& i_event ) throw( RuntimeException )
    {
        // simply disambiguate
        OSingleDocumentController_Base::disposing( i_event );
    }

    // -----------------------------------------------------------------------------
    void OSingleDocumentController::ClearUndoManager()
    {
        GetUndoManager().Clear();
    }

    // -----------------------------------------------------------------------------
    SfxUndoManager& OSingleDocumentController::GetUndoManager() const
    {
        return m_pData->m_pUndoManager->GetSfxUndoManager();
    }

    // -----------------------------------------------------------------------------
    void OSingleDocumentController::addUndoActionAndInvalidate(SfxUndoAction *_pAction)
    {
        // add undo action
        GetUndoManager().AddUndoAction( _pAction );

        // when we add an undo action the controller was modified
        setModified( sal_True );

        // now inform me that or states changed
        InvalidateFeature( ID_BROWSER_UNDO );
        InvalidateFeature( ID_BROWSER_REDO );
    }

    // -----------------------------------------------------------------------------
    Reference< XUndoManager > SAL_CALL OSingleDocumentController::getUndoManager(  ) throw (RuntimeException)
    {
        return m_pData->m_pUndoManager.get();
    }

    // -----------------------------------------------------------------------------
    FeatureState OSingleDocumentController::GetState(sal_uInt16 _nId) const
    {
        FeatureState aReturn;
        switch ( _nId )
        {
            case ID_BROWSER_UNDO:
                aReturn.bEnabled = isEditable() && GetUndoManager().GetUndoActionCount() != 0;
                if ( aReturn.bEnabled )
                {
                    String sUndo(ModuleRes(STR_UNDO_COLON));
                    sUndo += String(RTL_CONSTASCII_USTRINGPARAM(" "));
                    sUndo += GetUndoManager().GetUndoActionComment();
                    aReturn.sTitle = sUndo;
                }
                break;

            case ID_BROWSER_REDO:
                aReturn.bEnabled = isEditable() && GetUndoManager().GetRedoActionCount() != 0;
                if ( aReturn.bEnabled )
                {
                    String sRedo(ModuleRes(STR_REDO_COLON));
                    sRedo += String(RTL_CONSTASCII_USTRINGPARAM(" "));
                    sRedo += GetUndoManager().GetRedoActionComment();
                    aReturn.sTitle = sRedo;
                }
                break;

            default:
                aReturn = OSingleDocumentController_Base::GetState(_nId);
        }
        return aReturn;
    }
    // -----------------------------------------------------------------------------
    void OSingleDocumentController::Execute( sal_uInt16 _nId, const Sequence< PropertyValue >& _rArgs )
    {
        switch ( _nId )
        {
            case ID_BROWSER_UNDO:
                GetUndoManager().Undo();
                InvalidateFeature( ID_BROWSER_UNDO );
                InvalidateFeature( ID_BROWSER_REDO );
                break;

            case ID_BROWSER_REDO:
                GetUndoManager().Redo();
                InvalidateFeature( ID_BROWSER_UNDO );
                InvalidateFeature( ID_BROWSER_REDO );
                break;

            default:
                OSingleDocumentController_Base::Execute( _nId, _rArgs );
                break;
        }
        InvalidateFeature(_nId);
    }

//......................................................................................................................
} // namespace dbaui
//......................................................................................................................

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