/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sw.hxx"


#include <sfx2/linkmgr.hxx>
#include <doc.hxx>
#include <editsh.hxx>
#include <errhdl.hxx>
#include <ndtxt.hxx>
#include <fmtfld.hxx>
#include <txtfld.hxx>
#include <ddefld.hxx>
#include <swtable.hxx>
#include <swbaslnk.hxx>
#include <swddetbl.hxx>
#include <unofldmid.h>
#include <hints.hxx>

using rtl::OUString;
using namespace ::com::sun::star;

#define DDE_TXT_ENCODING 	gsl_getSystemTextEncoding()

/*--------------------------------------------------------------------
	Beschreibung: Globale Variablen
 --------------------------------------------------------------------*/

class SwIntrnlRefLink : public SwBaseLink
{
	SwDDEFieldType& rFldType;
public:
	SwIntrnlRefLink( SwDDEFieldType& rType, sal_uInt16 nUpdateType, sal_uInt16 nFmt )
		: SwBaseLink( nUpdateType, nFmt ),
		rFldType( rType )
	{}

	virtual void Closed();
	virtual void DataChanged( const String& rMimeType,
                                const uno::Any & rValue );

	virtual const SwNode* GetAnchor() const;
	virtual sal_Bool IsInRange( sal_uLong nSttNd, sal_uLong nEndNd, xub_StrLen nStt = 0,
							xub_StrLen nEnd = STRING_NOTFOUND ) const;
};


void SwIntrnlRefLink::DataChanged( const String& rMimeType,
                                const uno::Any & rValue )
{
	switch( SotExchange::GetFormatIdFromMimeType( rMimeType ) )
	{
	case FORMAT_STRING:
		if( !IsNoDataFlag() )
		{
            uno::Sequence< sal_Int8 > aSeq;
			rValue >>= aSeq;
			String sStr( (sal_Char*)aSeq.getConstArray(), static_cast<xub_StrLen>(aSeq.getLength()),
							   DDE_TXT_ENCODING	 );

			// CR-LF am Ende entfernen, ist ueberfluessig!
			xub_StrLen n = sStr.Len();
			while( n && 0 == sStr.GetChar( n-1 ) )
				--n;
			if( n && 0x0a == sStr.GetChar( n-1 ) )
				--n;
			if( n && 0x0d == sStr.GetChar( n-1 ) )
				--n;

			sal_Bool bDel = n != sStr.Len();
			if( bDel )
				sStr.Erase( n );

			rFldType.SetExpansion( sStr );
			// erst Expansion setzen! (sonst wird das Flag geloescht!)
			rFldType.SetCRLFDelFlag( bDel );
		}
		break;

	// weitere Formate ...
	default:
		return;
	}

	ASSERT( rFldType.GetDoc(), "Kein pDoc" );

	// keine Abhaengigen mehr?
	if( rFldType.GetDepends() && !rFldType.IsModifyLocked() && !ChkNoDataFlag() )
	{
		ViewShell* pSh;
		SwEditShell* pESh = rFldType.GetDoc()->GetEditShell( &pSh );

		// dann suchen wir uns mal alle Felder. Wird kein gueltiges
		// gefunden, dann Disconnecten wir uns!
		SwMsgPoolItem aUpdateDDE( RES_UPDATEDDETBL );
		int bCallModify = sal_False;
		rFldType.LockModify();

		SwClientIter aIter( rFldType );     // TODO
		SwClient * pLast = aIter.GoStart();
		if( pLast ) 	// konnte zum Anfang gesprungen werden ??
			do {
				// eine DDE-Tabelle oder ein DDE-FeldAttribut im Text
				if( !pLast->IsA( TYPE( SwFmtFld ) ) ||
					((SwFmtFld*)pLast)->GetTxtFld() )
				{
					if( !bCallModify )
					{
						if( pESh )
							pESh->StartAllAction();
						else if( pSh )
							pSh->StartAction();
					}
					pLast->ModifyNotification( 0, &aUpdateDDE );
					bCallModify = sal_True;
				}
			} while( 0 != ( pLast = ++aIter ));

		rFldType.UnlockModify();

		if( bCallModify )
		{
			if( pESh )
				pESh->EndAllAction();
			else if( pSh )
				pSh->EndAction();

			if( pSh )
				pSh->GetDoc()->SetModified();
		}
	}
}

void SwIntrnlRefLink::Closed()
{
	if( rFldType.GetDoc() && !rFldType.GetDoc()->IsInDtor() )
	{
		// Advise verabschiedet sich, alle Felder in Text umwandeln ?
		ViewShell* pSh;
		SwEditShell* pESh = rFldType.GetDoc()->GetEditShell( &pSh );
		if( pESh )
		{
			pESh->StartAllAction();
			pESh->FieldToText( &rFldType );
			pESh->EndAllAction();
		}
		else
		{
			pSh->StartAction();
			// am Doc aufrufen ??
			pSh->EndAction();
		}
	}
	SvBaseLink::Closed();
}

const SwNode* SwIntrnlRefLink::GetAnchor() const
{
	// hier sollte irgend ein Anchor aus dem normalen Nodes-Array reichen
	const SwNode* pNd = 0;
	SwClientIter aIter( rFldType );     // TODO
	SwClient * pLast = aIter.GoStart();
	if( pLast ) 	// konnte zum Anfang gesprungen werden ??
		do {
			// eine DDE-Tabelle oder ein DDE-FeldAttribut im Text
			if( !pLast->IsA( TYPE( SwFmtFld ) ))
			{
				SwDepend* pDep = (SwDepend*)pLast;
				SwDDETable* pDDETbl = (SwDDETable*)pDep->GetToTell();
				pNd = pDDETbl->GetTabSortBoxes()[0]->GetSttNd();
			}
			else if( ((SwFmtFld*)pLast)->GetTxtFld() )
				pNd = ((SwFmtFld*)pLast)->GetTxtFld()->GetpTxtNode();

			if( pNd && &rFldType.GetDoc()->GetNodes() == &pNd->GetNodes() )
				break;
			pNd = 0;
		} while( 0 != ( pLast = ++aIter ));

	return pNd;
}

sal_Bool SwIntrnlRefLink::IsInRange( sal_uLong nSttNd, sal_uLong nEndNd,
								xub_StrLen nStt, xub_StrLen nEnd ) const
{
	// hier sollte irgend ein Anchor aus dem normalen Nodes-Array reichen
	SwNodes* pNds = &rFldType.GetDoc()->GetNodes();
	SwClientIter aIter( rFldType );         // TODO
	SwClient * pLast = aIter.GoStart();
	if( pLast ) 	// konnte zum Anfang gesprungen werden ??
		do {
			// eine DDE-Tabelle oder ein DDE-FeldAttribut im Text
			if( !pLast->IsA( TYPE( SwFmtFld ) ))
			{
				SwDepend* pDep = (SwDepend*)pLast;
				SwDDETable* pDDETbl = (SwDDETable*)pDep->GetToTell();
				const SwTableNode* pTblNd = pDDETbl->GetTabSortBoxes()[0]->
								GetSttNd()->FindTableNode();
				if( pTblNd->GetNodes().IsDocNodes() &&
					nSttNd < pTblNd->EndOfSectionIndex() &&
					nEndNd > pTblNd->GetIndex() )
					return sal_True;
			}
			else if( ((SwFmtFld*)pLast)->GetTxtFld() )
			{
				const SwTxtFld* pTFld = ((SwFmtFld*)pLast)->GetTxtFld();
				const SwTxtNode* pNd = pTFld->GetpTxtNode();
				if( pNd && pNds == &pNd->GetNodes() )
				{
					sal_uLong nNdPos = pNd->GetIndex();
					if( nSttNd <= nNdPos && nNdPos <= nEndNd &&
						( nNdPos != nSttNd || *pTFld->GetStart() >= nStt ) &&
						( nNdPos != nEndNd || *pTFld->GetStart() < nEnd ))
						return sal_True;
				}
			}
		} while( 0 != ( pLast = ++aIter ));

	return sal_False;
}

SwDDEFieldType::SwDDEFieldType(const String& rName,
								const String& rCmd, sal_uInt16 nUpdateType )
	: SwFieldType( RES_DDEFLD ),
	aName( rName ), pDoc( 0 ), nRefCnt( 0 )
{
	bCRLFFlag = bDeleted = sal_False;
	refLink = new SwIntrnlRefLink( *this, nUpdateType, FORMAT_STRING );
	SetCmd( rCmd );
}

SwDDEFieldType::~SwDDEFieldType()
{
	if( pDoc && !pDoc->IsInDtor() )
		pDoc->GetLinkManager().Remove( refLink );
	refLink->Disconnect();
}

SwFieldType* SwDDEFieldType::Copy() const
{
	SwDDEFieldType* pType = new SwDDEFieldType( aName, GetCmd(), GetType() );
	pType->aExpansion = aExpansion;
	pType->bCRLFFlag = bCRLFFlag;
	pType->bDeleted = bDeleted;
	pType->SetDoc( pDoc );
	return pType;
}

const String& SwDDEFieldType::GetName() const
{
	return aName;
}

void SwDDEFieldType::SetCmd( const String& rStr )
{
	String sCmd( rStr );
	xub_StrLen nPos;
	while( STRING_NOTFOUND != (nPos = sCmd.SearchAscii( "  " )) )
		sCmd.Erase( nPos, 1 );
	refLink->SetLinkSourceName( sCmd );
}

String SwDDEFieldType::GetCmd() const
{
	return refLink->GetLinkSourceName();
}

void SwDDEFieldType::SetDoc( SwDoc* pNewDoc )
{
	if( pNewDoc == pDoc )
		return;

	if( pDoc && refLink.Is() )
	{
		ASSERT( !nRefCnt, "wie kommen die Referenzen rueber?" );
		pDoc->GetLinkManager().Remove( refLink );
	}

	pDoc = pNewDoc;
	if( pDoc && nRefCnt )
	{
		refLink->SetVisible( pDoc->IsVisibleLinks() );
		pDoc->GetLinkManager().InsertDDELink( refLink );
	}
}


void SwDDEFieldType::_RefCntChgd()
{
	if( nRefCnt )
	{
		refLink->SetVisible( pDoc->IsVisibleLinks() );
		pDoc->GetLinkManager().InsertDDELink( refLink );
		if( pDoc->GetCurrentViewShell() )	//swmod 071108//swmod 071225
			UpdateNow();
	}
	else
	{
		Disconnect();
		pDoc->GetLinkManager().Remove( refLink );
	}
}
/* -----------------------------28.08.00 16:23--------------------------------

 ---------------------------------------------------------------------------*/
sal_Bool SwDDEFieldType::QueryValue( uno::Any& rVal, sal_uInt16 nWhichId ) const
{
	sal_uInt8 nPart = 0;
    switch( nWhichId )
	{
	case FIELD_PROP_PAR2:      nPart = 3; break;
	case FIELD_PROP_PAR4:      nPart = 2; break;
	case FIELD_PROP_SUBTYPE:   nPart = 1; break;
	case FIELD_PROP_BOOL1:
		{
            sal_Bool bSet = GetType() == sfx2::LINKUPDATE_ALWAYS ? sal_True : sal_False;
			rVal.setValue(&bSet, ::getBooleanCppuType());
		}
		break;
    case FIELD_PROP_PAR5:
        rVal <<= ::rtl::OUString(aExpansion);
    break;
	default:
		DBG_ERROR("illegal property");
	}
	if( nPart )
        rVal <<= OUString(GetCmd().GetToken(nPart-1, sfx2::cTokenSeperator));
	return sal_True;
}
/* -----------------------------28.08.00 16:23--------------------------------

 ---------------------------------------------------------------------------*/
sal_Bool SwDDEFieldType::PutValue( const uno::Any& rVal, sal_uInt16 nWhichId )
{
	sal_uInt8 nPart = 0;
    switch( nWhichId )
	{
	case FIELD_PROP_PAR2:      nPart = 3; break;
	case FIELD_PROP_PAR4:      nPart = 2; break;
	case FIELD_PROP_SUBTYPE:   nPart = 1; break;
	case FIELD_PROP_BOOL1:
        SetType( static_cast<sal_uInt16>(*(sal_Bool*)rVal.getValue() ?
                                     sfx2::LINKUPDATE_ALWAYS :
                                     sfx2::LINKUPDATE_ONCALL ) );
		break;
    case FIELD_PROP_PAR5:
    {
        ::rtl::OUString sTemp;
        rVal >>= sTemp;
        aExpansion = sTemp;
    }
    break;
	default:
		DBG_ERROR("illegal property");
	}
	if( nPart )
	{
		String sTmp, sCmd( GetCmd() );
        while(3 > sCmd.GetTokenCount(sfx2::cTokenSeperator))
            sCmd += sfx2::cTokenSeperator;
        sCmd.SetToken( nPart-1, sfx2::cTokenSeperator, ::GetString( rVal, sTmp ) );
		SetCmd( sCmd );
	}
	return sal_True;
}
/* ---------------------------------------------------------------------------

 ---------------------------------------------------------------------------*/
SwDDEField::SwDDEField( SwDDEFieldType* pInitType )
	: SwField(pInitType)
{
}

SwDDEField::~SwDDEField()
{
	if( GetTyp()->IsLastDepend() )
		((SwDDEFieldType*)GetTyp())->Disconnect();
}

String SwDDEField::Expand() const
{
	xub_StrLen nPos;
	String aStr( ((SwDDEFieldType*)GetTyp())->GetExpansion() );

	aStr.EraseAllChars( '\r' );
	while( (nPos = aStr.Search( '\t' )) != STRING_NOTFOUND )
		aStr.SetChar( nPos, ' ' );
	while( (nPos = aStr.Search( '\n' )) != STRING_NOTFOUND )
		aStr.SetChar( nPos, '|' );
	if( aStr.Len() && ( aStr.GetChar( aStr.Len()-1 ) == '|') )
		aStr.Erase( aStr.Len()-1, 1 );
	return aStr;
}

SwField* SwDDEField::Copy() const
{
	return new SwDDEField((SwDDEFieldType*)GetTyp());
}

/*--------------------------------------------------------------------
	Beschreibung: Parameter des Typen erfragen
				  Name
 --------------------------------------------------------------------*/
const String& SwDDEField::GetPar1() const
{
	return ((SwDDEFieldType*)GetTyp())->GetName();
}

/*--------------------------------------------------------------------
	Beschreibung: Parameter des Typen erfragen
				  Commando
 --------------------------------------------------------------------*/
String SwDDEField::GetPar2() const
{
	return ((SwDDEFieldType*)GetTyp())->GetCmd();
}

void SwDDEField::SetPar2(const String& rStr)
{
	((SwDDEFieldType*)GetTyp())->SetCmd(rStr);
}