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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <comphelper/fileformat.h>
#include <comphelper/string.hxx>
#include <osl/thread.h>
#include <sot/exchange.hxx>
#include <sfx2/linkmgr.hxx>
#include <sfx2/bindings.hxx>
#include <svl/zforlist.hxx>
#include <svl/sharedstringpool.hxx>
#include <ddelink.hxx>
#include <brdcst.hxx>
#include <document.hxx>
#include <scmatrix.hxx>
#include <patattr.hxx>
#include <rechead.hxx>
#include <rangeseq.hxx>
#include <sc.hrc>
#include <hints.hxx>
#define DDE_TXT_ENCODING osl_getThreadTextEncoding()
bool ScDdeLink::bIsInUpdate = false;
ScDdeLink::ScDdeLink( ScDocument* pD, const OUString& rA, const OUString& rT, const OUString& rI,
sal_uInt8 nM ) :
::sfx2::SvBaseLink(SfxLinkUpdateMode::ALWAYS,SotClipboardFormatId::STRING),
pDoc( pD ),
aAppl( rA ),
aTopic( rT ),
aItem( rI ),
nMode( nM ),
bNeedUpdate( false ),
pResult( nullptr )
{
}
ScDdeLink::~ScDdeLink()
{
// cancel connection
// pResult is refcounted
}
ScDdeLink::ScDdeLink( ScDocument* pD, const ScDdeLink& rOther ) :
::sfx2::SvBaseLink(SfxLinkUpdateMode::ALWAYS,SotClipboardFormatId::STRING),
pDoc ( pD ),
aAppl ( rOther.aAppl ),
aTopic ( rOther.aTopic ),
aItem ( rOther.aItem ),
nMode ( rOther.nMode ),
bNeedUpdate( false ),
pResult ( nullptr )
{
if (rOther.pResult)
pResult = rOther.pResult->Clone();
}
ScDdeLink::ScDdeLink( ScDocument* pD, SvStream& rStream, ScMultipleReadHeader& rHdr ) :
::sfx2::SvBaseLink(SfxLinkUpdateMode::ALWAYS,SotClipboardFormatId::STRING),
pDoc( pD ),
bNeedUpdate( false ),
pResult( nullptr )
{
rHdr.StartEntry();
rtl_TextEncoding eCharSet = rStream.GetStreamCharSet();
aAppl = rStream.ReadUniOrByteString( eCharSet );
aTopic = rStream.ReadUniOrByteString( eCharSet );
aItem = rStream.ReadUniOrByteString( eCharSet );
bool bHasValue;
rStream.ReadCharAsBool( bHasValue );
if ( bHasValue )
pResult = new ScMatrix(0, 0);
if (rHdr.BytesLeft()) // new in 388b and the 364w (RealTime Client) version
rStream.ReadUChar( nMode );
else
nMode = SC_DDE_DEFAULT;
rHdr.EndEntry();
}
void ScDdeLink::Store( SvStream& rStream, ScMultipleWriteHeader& rHdr ) const
{
rHdr.StartEntry();
rtl_TextEncoding eCharSet = rStream.GetStreamCharSet();
rStream.WriteUniOrByteString( aAppl, eCharSet );
rStream.WriteUniOrByteString( aTopic, eCharSet );
rStream.WriteUniOrByteString( aItem, eCharSet );
bool bHasValue = ( pResult != nullptr );
rStream.WriteBool( bHasValue );
if( rStream.GetVersion() > SOFFICE_FILEFORMAT_40 ) // not with 4.0 Export
rStream.WriteUChar( nMode ); // since 388b
// links with Mode != SC_DDE_DEFAULT are completely omitted in 4.0 Export
// (from ScDocument::SaveDdeLinks)
rHdr.EndEntry();
}
sfx2::SvBaseLink::UpdateResult ScDdeLink::DataChanged(
const OUString& rMimeType, const css::uno::Any & rValue )
{
// we only master strings...
if ( SotClipboardFormatId::STRING != SotExchange::GetFormatIdFromMimeType( rMimeType ))
return SUCCESS;
OUString aLinkStr;
ScByteSequenceToString::GetString( aLinkStr, rValue, DDE_TXT_ENCODING );
aLinkStr = convertLineEnd(aLinkStr, LINEEND_LF);
// if string ends with line end, discard:
sal_Int32 nLen = aLinkStr.getLength();
if (nLen && aLinkStr[nLen-1] == '\n')
aLinkStr = aLinkStr.copy(0, nLen-1);
OUString aLine;
SCSIZE nCols = 1; // empty string -> an empty line
SCSIZE nRows = 1;
if (!aLinkStr.isEmpty())
{
nRows = static_cast<SCSIZE>(comphelper::string::getTokenCount(aLinkStr, '\n'));
aLine = aLinkStr.getToken( 0, '\n' );
if (!aLine.isEmpty())
nCols = static_cast<SCSIZE>(comphelper::string::getTokenCount(aLine, '\t'));
}
if (!nRows || !nCols) // no data
{
pResult.reset();
}
else // split data
{
// always newly re-create matrix, so that bIsString doesn't get mixed up
pResult = new ScMatrix(nCols, nRows, 0.0);
SvNumberFormatter* pFormatter = pDoc->GetFormatTable();
svl::SharedStringPool& rPool = pDoc->GetSharedStringPool();
// nMode determines how the text is interpreted (#44455#/#49783#):
// SC_DDE_DEFAULT - number format from cell template "Standard"
// SC_DDE_ENGLISH - standard number format for English/US
// SC_DDE_TEXT - without NumberFormatter directly as string
sal_uLong nStdFormat = 0;
if ( nMode == SC_DDE_DEFAULT )
{
ScPatternAttr* pDefPattern = pDoc->GetDefPattern(); // contains standard template
if ( pDefPattern )
nStdFormat = pDefPattern->GetNumberFormat( pFormatter );
}
else if ( nMode == SC_DDE_ENGLISH )
nStdFormat = pFormatter->GetStandardIndex(LANGUAGE_ENGLISH_US);
OUString aEntry;
for (SCSIZE nR=0; nR<nRows; nR++)
{
aLine = aLinkStr.getToken( static_cast<sal_Int32>(nR), '\n' );
for (SCSIZE nC=0; nC<nCols; nC++)
{
aEntry = aLine.getToken( static_cast<sal_Int32>(nC), '\t' );
sal_uInt32 nIndex = nStdFormat;
double fVal = double();
if ( nMode != SC_DDE_TEXT && pFormatter->IsNumberFormat( aEntry, nIndex, fVal ) )
pResult->PutDouble( fVal, nC, nR );
else if (aEntry.isEmpty())
// empty cell
pResult->PutEmpty(nC, nR);
else
pResult->PutString(rPool.intern(aEntry), nC, nR);
}
}
}
// Something happened...
if (HasListeners())
{
Broadcast(ScHint(SfxHintId::ScDataChanged, ScAddress()));
pDoc->TrackFormulas(); // must happen immediately
pDoc->StartTrackTimer();
// StartTrackTimer asynchronously calls TrackFormulas, Broadcast(FID_DATACHANGED),
// ResetChanged, SetModified and Invalidate(SID_SAVEDOC/SID_DOC_MODIFIED)
// TrackFormulas additionally once again immediately, so that, e.g., a formula still
// located in the FormulaTrack doesn't get calculated by IdleCalc (#61676#)
// notify Uno objects (for XRefreshListener)
// must be after TrackFormulas
//TODO: do this asynchronously?
ScLinkRefreshedHint aHint;
aHint.SetDdeLink( aAppl, aTopic, aItem );
pDoc->BroadcastUno( aHint );
}
return SUCCESS;
}
void ScDdeLink::ListenersGone()
{
bool bWas = bIsInUpdate;
bIsInUpdate = true; // Remove() can trigger reschedule??!?
ScDocument* pStackDoc = pDoc; // member pDoc can't be used after removing the link
sfx2::LinkManager* pLinkMgr = pDoc->GetLinkManager();
pLinkMgr->Remove( this); // deletes this
if ( pLinkMgr->GetLinks().empty() ) // deleted the last one ?
{
SfxBindings* pBindings = pStackDoc->GetViewBindings(); // don't use member pDoc!
if (pBindings)
pBindings->Invalidate( SID_LINKS );
}
bIsInUpdate = bWas;
}
const ScMatrix* ScDdeLink::GetResult() const
{
return pResult.get();
}
void ScDdeLink::SetResult( const ScMatrixRef& pRes )
{
pResult = pRes;
}
void ScDdeLink::TryUpdate()
{
if (bIsInUpdate)
bNeedUpdate = true; // cannot be executed now
else
{
bIsInUpdate = true;
pDoc->IncInDdeLinkUpdate();
Update();
pDoc->DecInDdeLinkUpdate();
bIsInUpdate = false;
bNeedUpdate = false;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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