/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: servobj.cxx,v $
 *
 *  $Revision: 1.9 $
 *
 *  last change: $Author: vg $ $Date: 2007-02-27 13:09:43 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library 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 for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sc.hxx"
// System - Includes -----------------------------------------------------



#include <sot/formats.hxx>
#include <sfx2/app.hxx>
#include <svx/linkmgr.hxx>
#include "servobj.hxx"
#include "docsh.hxx"
#include "impex.hxx"
#include "brdcst.hxx"
#include "rangenam.hxx"
#include "sc.hrc"               // SC_HINT_AREAS_CHANGED

// -----------------------------------------------------------------------

BOOL lcl_FillRangeFromName( ScRange& rRange, ScDocShell* pDocSh, const String& rName )
{
    if (pDocSh)
    {
        ScDocument* pDoc = pDocSh->GetDocument();
        ScRangeName* pNames = pDoc->GetRangeName();
        if (pNames)
        {
            USHORT nPos;
            if( pNames->SearchName( rName, nPos ) )
            {
                ScRangeData* pData = (*pNames)[ nPos ];
                if ( pData->IsValidReference( rRange ) )
                    return TRUE;
            }
        }
    }
    return FALSE;
}

ScServerObjectSvtListenerForwarder::ScServerObjectSvtListenerForwarder(
        ScServerObject* pObjP)
    : pObj(pObjP)
{
}

ScServerObjectSvtListenerForwarder::~ScServerObjectSvtListenerForwarder()
{
    //! do NOT access pObj
}

void ScServerObjectSvtListenerForwarder::Notify( SvtBroadcaster& /* rBC */, const SfxHint& rHint)
{
    pObj->Notify( aBroadcaster, rHint);
}

ScServerObject::ScServerObject( ScDocShell* pShell, const String& rItem ) :
    aForwarder( this ),
    pDocSh( pShell ),
    bRefreshListener( FALSE )
{
    //  parse item string

    if ( lcl_FillRangeFromName( aRange, pDocSh, rItem ) )
    {
        aItemStr = rItem;               // must be parsed again on ref update
    }
    else
    {
        //  parse ref
        ScDocument* pDoc = pDocSh->GetDocument();
        SCTAB nTab = pDocSh->GetCurTab();
        aRange.aStart.SetTab( nTab );

        if ( aRange.Parse( rItem, pDoc ) & SCA_VALID )
        {
            // area reference
        }
        else if ( aRange.aStart.Parse( rItem, pDoc ) & SCA_VALID )
        {
            // cell reference
            aRange.aEnd = aRange.aStart;
        }
        else
        {
            DBG_ERROR("ScServerObject: invalid item");
        }
    }

    pDocSh->GetDocument()->GetLinkManager()->InsertServer( this );
    pDocSh->GetDocument()->StartListeningArea( aRange, &aForwarder );

    StartListening(*pDocSh);        // um mitzubekommen, wenn die DocShell geloescht wird
    StartListening(*SFX_APP());     // for SC_HINT_AREAS_CHANGED
}

__EXPORT ScServerObject::~ScServerObject()
{
    Clear();
}

void ScServerObject::Clear()
{
    if (pDocSh)
    {
        ScDocShell* pTemp = pDocSh;
        pDocSh = NULL;

        pTemp->GetDocument()->EndListeningArea( aRange, &aForwarder );
        pTemp->GetDocument()->GetLinkManager()->RemoveServer( this );
        EndListening(*pTemp);
        EndListening(*SFX_APP());
    }
}

void ScServerObject::EndListeningAll()
{
    aForwarder.EndListeningAll();
    SfxListener::EndListeningAll();
}

BOOL __EXPORT ScServerObject::GetData(
        ::com::sun::star::uno::Any & rData /*out param*/,
        const String & rMimeType, BOOL /* bSynchron */ )
{
    if (!pDocSh)
        return FALSE;

    // named ranges may have changed -> update aRange
    if ( aItemStr.Len() )
    {
        ScRange aNew;
        if ( lcl_FillRangeFromName( aNew, pDocSh, aItemStr ) && aNew != aRange )
        {
            aRange = aNew;
            bRefreshListener = TRUE;
        }
    }

    if ( bRefreshListener )
    {
        //  refresh the listeners now (this is called from a timer)

        EndListeningAll();
        pDocSh->GetDocument()->StartListeningArea( aRange, &aForwarder );
        StartListening(*pDocSh);
        StartListening(*SFX_APP());
        bRefreshListener = FALSE;
    }

    String aDdeTextFmt = pDocSh->GetDdeTextFmt();
    ScDocument* pDoc = pDocSh->GetDocument();

    if( FORMAT_STRING == SotExchange::GetFormatIdFromMimeType( rMimeType ))
    {
        ScImportExport aObj( pDoc, aRange );
        if( aDdeTextFmt.GetChar(0) == 'F' )
            aObj.SetFormulas( TRUE );
        if( aDdeTextFmt.EqualsAscii( "SYLK" ) ||
            aDdeTextFmt.EqualsAscii( "FSYLK" ) )
        {
            ByteString aByteData;
            if( aObj.ExportByteString( aByteData, gsl_getSystemTextEncoding(), SOT_FORMATSTR_ID_SYLK ) )
            {
                rData <<= ::com::sun::star::uno::Sequence< sal_Int8 >(
                                        (sal_Int8*)aByteData.GetBuffer(),
                                        aByteData.Len() + 1 );
                return 1;
            }
            return 0;
        }
        if( aDdeTextFmt.EqualsAscii( "CSV" ) ||
            aDdeTextFmt.EqualsAscii( "FCSV" ) )
            aObj.SetSeparator( ',' );
        return aObj.ExportData( rMimeType, rData ) ? 1 : 0;
    }

    ScImportExport aObj( pDoc, aRange );
    if( aObj.IsRef() )
        return aObj.ExportData( rMimeType, rData ) ? 1 : 0;
    return 0;
}

void __EXPORT ScServerObject::SFX_NOTIFY( SfxBroadcaster& rBC, const TypeId& rBCType,
                                         const SfxHint& rHint, const TypeId& rHintType )
{
    BOOL bDataChanged = FALSE;

    //  DocShell can't be tested via type info, because SFX_HINT_DYING comes from the dtor
    if ( &rBC == pDocSh )
    {
        //  from DocShell, only SFX_HINT_DYING is interesting
        if ( rHint.ISA(SfxSimpleHint) && ((const SfxSimpleHint&)rHint).GetId() == SFX_HINT_DYING )
        {
            pDocSh = NULL;
            EndListening(*SFX_APP());
            //  don't access DocShell anymore for EndListening etc.
        }
    }
    else if (rBC.ISA(SfxApplication))
    {
        if ( aItemStr.Len() && rHint.ISA(SfxSimpleHint) &&
                ((const SfxSimpleHint&)rHint).GetId() == SC_HINT_AREAS_CHANGED )
        {
            //  check if named range was modified
            ScRange aNew;
            if ( lcl_FillRangeFromName( aNew, pDocSh, aItemStr ) && aNew != aRange )
                bDataChanged = TRUE;
        }
    }
    else
    {
        //  must be from Area broadcasters

        const ScHint* pScHint = PTR_CAST( ScHint, &rHint );
        if( pScHint && (pScHint->GetId() & (SC_HINT_DATACHANGED | SC_HINT_DYING)) )
            bDataChanged = TRUE;
        else if (rHint.ISA(ScAreaChangedHint))      // position of broadcaster changed
        {
            ScRange aNewRange = ((const ScAreaChangedHint&)rHint).GetRange();
            if ( aRange != aNewRange )
            {
                bRefreshListener = TRUE;
                bDataChanged = TRUE;
            }
        }
        else if (rHint.ISA(SfxSimpleHint))
        {
            ULONG nId = ((const SfxSimpleHint&)rHint).GetId();
            if (nId == SFX_HINT_DYING)
            {
                //  If the range is being deleted, listening must be restarted
                //  after the deletion is complete (done in GetData)
                bRefreshListener = TRUE;
                bDataChanged = TRUE;
            }
        }
    }

    if ( bDataChanged && HasDataLinks() )
        SvLinkSource::NotifyDataChanged();
}