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diff --git a/sfx2/source/appl/impldde.cxx b/sfx2/source/appl/impldde.cxx
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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 .
+ */
+
+
+#if defined(_WIN32)
+#include <prewin.h>
+#include <postwin.h>
+#endif
+
+#include "impldde.hxx"
+
+#include <vcl/weld.hxx>
+#include <sot/exchange.hxx>
+#include <rtl/ustring.hxx>
+
+#include <sfx2/lnkbase.hxx>
+#include <sfx2/linkmgr.hxx>
+
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+
+#include <svl/svdde.hxx>
+#include <sot/formats.hxx>
+
+using namespace ::com::sun::star::uno;
+
+namespace sfx2
+{
+
+namespace {
+
+class SvDDELinkEditDialog : public weld::GenericDialogController
+{
+ std::unique_ptr<weld::Entry> m_xEdDdeApp;
+ std::unique_ptr<weld::Entry> m_xEdDdeTopic;
+ std::unique_ptr<weld::Entry> m_xEdDdeItem;
+ std::unique_ptr<weld::Button> m_xOKButton;
+
+ DECL_LINK(EditHdl_Impl, weld::Entry&, void);
+public:
+ SvDDELinkEditDialog(weld::Window* pParent, SvBaseLink const*);
+ OUString GetCmd() const;
+};
+
+}
+
+SvDDELinkEditDialog::SvDDELinkEditDialog(weld::Window* pParent, SvBaseLink const * pLink)
+ : GenericDialogController(pParent, "sfx/ui/linkeditdialog.ui", "LinkEditDialog")
+ , m_xEdDdeApp(m_xBuilder->weld_entry("app"))
+ , m_xEdDdeTopic(m_xBuilder->weld_entry("file"))
+ , m_xEdDdeItem(m_xBuilder->weld_entry("category"))
+ , m_xOKButton(m_xBuilder->weld_button("ok"))
+{
+ OUString sServer, sTopic, sItem;
+ sfx2::LinkManager::GetDisplayNames( pLink, &sServer, &sTopic, &sItem );
+
+ m_xEdDdeApp->set_text( sServer );
+ m_xEdDdeTopic->set_text( sTopic );
+ m_xEdDdeItem->set_text( sItem );
+
+ m_xEdDdeApp->connect_changed( LINK( this, SvDDELinkEditDialog, EditHdl_Impl));
+ m_xEdDdeTopic->connect_changed( LINK( this, SvDDELinkEditDialog, EditHdl_Impl));
+ m_xEdDdeItem->connect_changed( LINK( this, SvDDELinkEditDialog, EditHdl_Impl));
+
+ m_xOKButton->set_sensitive(!sServer.isEmpty() && !sTopic.isEmpty() && !sItem.isEmpty());
+}
+
+OUString SvDDELinkEditDialog::GetCmd() const
+{
+ OUString sCmd( m_xEdDdeApp->get_text() ), sRet;
+ ::sfx2::MakeLnkName( sRet, &sCmd, m_xEdDdeTopic->get_text(), m_xEdDdeItem->get_text() );
+ return sRet;
+}
+
+IMPL_LINK_NOARG( SvDDELinkEditDialog, EditHdl_Impl, weld::Entry&, void)
+{
+ m_xOKButton->set_sensitive(!m_xEdDdeApp->get_text().isEmpty() &&
+ !m_xEdDdeTopic->get_text().isEmpty() &&
+ !m_xEdDdeItem->get_text().isEmpty() );
+}
+
+SvDDEObject::SvDDEObject()
+ : pGetData( nullptr )
+{
+ SetUpdateTimeout( 100 );
+ bWaitForData = false;
+}
+
+SvDDEObject::~SvDDEObject()
+{
+ pLink.reset();
+ pRequest.reset();
+ pConnection.reset();
+}
+
+bool SvDDEObject::GetData( css::uno::Any & rData /*out param*/,
+ const OUString & rMimeType,
+ bool bSynchron )
+{
+ if( !pConnection )
+ return false;
+
+ if( pConnection->GetError() ) // then we try once more
+ {
+ OUString sServer( pConnection->GetServiceName() );
+ OUString sTopic( pConnection->GetTopicName() );
+
+ pConnection.reset( new DdeConnection( sServer, sTopic ) );
+ }
+
+ if( bWaitForData ) // we are in a recursive loop, get out again
+ return false;
+
+ // Lock against Reentrance
+ bWaitForData = true;
+
+ // if you want to print, we'll wait until the data is available
+ if( bSynchron )
+ {
+ DdeRequest aReq( *pConnection, sItem, 5000 );
+ aReq.SetDataHdl( LINK( this, SvDDEObject, ImplGetDDEData ) );
+ aReq.SetFormat( SotExchange::GetFormatIdFromMimeType( rMimeType ));
+
+ pGetData = &rData;
+
+ do {
+ aReq.Execute();
+ } while( aReq.GetError() && ImplHasOtherFormat( aReq ) );
+
+ bWaitForData = false;
+ }
+ else
+ {
+ // otherwise it will be executed asynchronously
+ {
+ pRequest.reset( new DdeRequest( *pConnection, sItem ) );
+ pRequest->SetDataHdl( LINK( this, SvDDEObject, ImplGetDDEData ) );
+ pRequest->SetDoneHdl( LINK( this, SvDDEObject, ImplDoneDDEData ) );
+ pRequest->SetFormat( SotExchange::GetFormatIdFromMimeType(
+ rMimeType ) );
+ pRequest->Execute();
+ }
+
+ rData <<= OUString();
+ }
+ return 0 == pConnection->GetError();
+}
+
+
+bool SvDDEObject::Connect( SvBaseLink * pSvLink )
+{
+ SfxLinkUpdateMode nLinkType = pSvLink->GetUpdateMode();
+ if( pConnection ) // Connection is already made
+ {
+ // well, then just add it as dependent
+ AddDataAdvise( pSvLink,
+ SotExchange::GetFormatMimeType( pSvLink->GetContentType()),
+ SfxLinkUpdateMode::ONCALL == nLinkType
+ ? ADVISEMODE_ONLYONCE
+ : 0 );
+ AddConnectAdvise( pSvLink );
+
+ return true;
+ }
+
+ if( !pSvLink->GetLinkManager() )
+ return false;
+
+ OUString sServer, sTopic;
+ sfx2::LinkManager::GetDisplayNames( pSvLink, &sServer, &sTopic, &sItem );
+
+ if( sServer.isEmpty() || sTopic.isEmpty() || sItem.isEmpty() )
+ return false;
+
+ pConnection.reset( new DdeConnection( sServer, sTopic ) );
+ if( pConnection->GetError() )
+ {
+ // check if the DDE server knows the "SYSTEM" topic
+ bool bSysTopic = false;
+ if (!sTopic.equalsIgnoreAsciiCase("SYSTEM"))
+ {
+ DdeConnection aTmp(sServer, "SYSTEM");
+ bSysTopic = !aTmp.GetError();
+ }
+
+ if( bSysTopic )
+ {
+ // if the system topic works then the server is up but just doesn't know the original topic
+ return false;
+ }
+ }
+
+ if( SfxLinkUpdateMode::ALWAYS == nLinkType && !pLink && !pConnection->GetError() )
+ {
+ // Setting up Hot Link, Data will be available at some point later on
+ pLink.reset( new DdeHotLink( *pConnection, sItem ) );
+ pLink->SetDataHdl( LINK( this, SvDDEObject, ImplGetDDEData ) );
+ pLink->SetDoneHdl( LINK( this, SvDDEObject, ImplDoneDDEData ) );
+ pLink->SetFormat( pSvLink->GetContentType() );
+ pLink->Execute();
+ }
+
+ if( pConnection->GetError() )
+ return false;
+
+ AddDataAdvise( pSvLink,
+ SotExchange::GetFormatMimeType( pSvLink->GetContentType()),
+ SfxLinkUpdateMode::ONCALL == nLinkType
+ ? ADVISEMODE_ONLYONCE
+ : 0 );
+ AddConnectAdvise( pSvLink );
+ SetUpdateTimeout( 0 );
+ return true;
+}
+
+void SvDDEObject::Edit(weld::Window* pParent, sfx2::SvBaseLink* pBaseLink, const Link<const OUString&, void>& rEndEditHdl)
+{
+ SvDDELinkEditDialog aDlg(pParent, pBaseLink);
+ if (RET_OK == aDlg.run() && rEndEditHdl.IsSet())
+ {
+ OUString sCommand = aDlg.GetCmd();
+ rEndEditHdl.Call( sCommand );
+ }
+}
+
+bool SvDDEObject::ImplHasOtherFormat( DdeTransaction& rReq )
+{
+ SotClipboardFormatId nFmt = SotClipboardFormatId::NONE;
+ switch( rReq.GetFormat() )
+ {
+ case SotClipboardFormatId::RTF:
+ nFmt = SotClipboardFormatId::STRING;
+ break;
+
+ case SotClipboardFormatId::HTML_SIMPLE:
+ case SotClipboardFormatId::HTML:
+ nFmt = SotClipboardFormatId::RTF;
+ break;
+
+ case SotClipboardFormatId::GDIMETAFILE:
+ nFmt = SotClipboardFormatId::BITMAP;
+ break;
+
+ case SotClipboardFormatId::SVXB:
+ nFmt = SotClipboardFormatId::GDIMETAFILE;
+ break;
+
+ // something else?
+ default: break;
+ }
+ if( nFmt != SotClipboardFormatId::NONE )
+ rReq.SetFormat( nFmt ); // try it once more
+ return SotClipboardFormatId::NONE != nFmt;
+}
+
+bool SvDDEObject::IsPending() const
+/*
+ The method determines whether the data-object can be read from a DDE.
+*/
+{
+ return bWaitForData;
+}
+
+bool SvDDEObject::IsDataComplete() const
+{
+ return bWaitForData;
+}
+
+IMPL_LINK( SvDDEObject, ImplGetDDEData, const DdeData*, pData, void )
+{
+ SotClipboardFormatId nFmt = pData->GetFormat();
+ switch( nFmt )
+ {
+ case SotClipboardFormatId::GDIMETAFILE:
+ break;
+
+ case SotClipboardFormatId::BITMAP:
+ break;
+
+ default:
+ {
+ const char* p = static_cast<char const *>(pData->getData());
+ tools::Long nLen = SotClipboardFormatId::STRING == nFmt ? (p ? strlen( p ) : 0) : pData->getSize();
+
+ Sequence< sal_Int8 > aSeq( reinterpret_cast<const sal_Int8*>(p), nLen );
+ if( pGetData )
+ {
+ *pGetData <<= aSeq; // Copy Data
+ pGetData = nullptr; // reset the pointer here
+ }
+ else
+ {
+ Any aVal;
+ aVal <<= aSeq;
+ DataChanged( SotExchange::GetFormatMimeType(
+ pData->GetFormat() ), aVal );
+ bWaitForData = false;
+ }
+ }
+ }
+}
+
+IMPL_LINK( SvDDEObject, ImplDoneDDEData, bool, bValid, void )
+{
+ if( !bValid && ( pRequest || pLink ))
+ {
+ DdeTransaction* pReq = nullptr;
+ if( !pLink || ( pLink && pLink->IsBusy() ))
+ pReq = pRequest.get(); // only the one that is ready
+ else if( pRequest && pRequest->IsBusy() )
+ pReq = pLink.get(); // only the one that is ready
+
+ if( pReq )
+ {
+ if( ImplHasOtherFormat( *pReq ) )
+ {
+ pReq->Execute();
+ }
+ else if( pReq == pRequest.get() )
+ {
+ bWaitForData = false;
+ }
+ }
+ }
+ else
+ // End waiting
+ bWaitForData = false;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */