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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 <sal/config.h>
+
+#include <comphelper/processfactory.hxx>
+#include <osl/file.hxx>
+#include <osl/thread.h>
+#include <unotools/ucbstreamhelper.hxx>
+#include <ucbhelper/content.hxx>
+#include <unotools/datetime.hxx>
+#include <svx/svdotext.hxx>
+#include <svx/svdmodel.hxx>
+#include <editeng/editdata.hxx>
+#include <sfx2/lnkbase.hxx>
+#include <sfx2/linkmgr.hxx>
+#include <tools/urlobj.hxx>
+#include <tools/debug.hxx>
+#include <tools/tenccvt.hxx>
+#include <memory>
+
+class ImpSdrObjTextLink: public ::sfx2::SvBaseLink
+{
+ SdrTextObj* pSdrObj;
+
+public:
+ explicit ImpSdrObjTextLink( SdrTextObj* pObj1 )
+ : ::sfx2::SvBaseLink( ::SfxLinkUpdateMode::ONCALL, SotClipboardFormatId::SIMPLE_FILE ),
+ pSdrObj( pObj1 )
+ {}
+
+ virtual void Closed() override;
+ virtual ::sfx2::SvBaseLink::UpdateResult DataChanged(
+ const OUString& rMimeType, const css::uno::Any & rValue ) override;
+};
+
+void ImpSdrObjTextLink::Closed()
+{
+ if (pSdrObj )
+ {
+ // set pLink of the object to NULL, because we are destroying the link instance now
+ ImpSdrObjTextLinkUserData* pData=pSdrObj->GetLinkUserData();
+ if (pData!=nullptr) pData->pLink=nullptr;
+ pSdrObj->ReleaseTextLink();
+ }
+ SvBaseLink::Closed();
+}
+
+
+::sfx2::SvBaseLink::UpdateResult ImpSdrObjTextLink::DataChanged(
+ const OUString& /*rMimeType*/, const css::uno::Any & /*rValue */)
+{
+ bool bForceReload = false;
+ SdrModel* pModel(pSdrObj ? &pSdrObj->getSdrModelFromSdrObject() : nullptr);
+ sfx2::LinkManager* pLinkManager(pModel ? pModel->GetLinkManager() : nullptr);
+
+ if( pLinkManager )
+ {
+ ImpSdrObjTextLinkUserData* pData=pSdrObj->GetLinkUserData();
+ if( pData )
+ {
+ OUString aFile;
+ OUString aFilter;
+ sfx2::LinkManager::GetDisplayNames( this, nullptr,&aFile, nullptr, &aFilter );
+
+ if( pData->aFileName != aFile ||
+ pData->aFilterName != aFilter )
+ {
+ pData->aFileName = aFile;
+ pData->aFilterName = aFilter;
+ pSdrObj->SetChanged();
+ bForceReload = true;
+ }
+ }
+ }
+ if (pSdrObj )
+ pSdrObj->ReloadLinkedText( bForceReload );
+
+ return SUCCESS;
+}
+
+
+ImpSdrObjTextLinkUserData::ImpSdrObjTextLinkUserData():
+ SdrObjUserData(SdrInventor::Default,SDRUSERDATA_OBJTEXTLINK),
+ aFileDate0( DateTime::EMPTY ),
+ eCharSet(RTL_TEXTENCODING_DONTKNOW)
+{
+}
+
+ImpSdrObjTextLinkUserData::~ImpSdrObjTextLinkUserData()
+{
+}
+
+std::unique_ptr<SdrObjUserData> ImpSdrObjTextLinkUserData::Clone(SdrObject* ) const
+{
+ ImpSdrObjTextLinkUserData* pData=new ImpSdrObjTextLinkUserData;
+ pData->aFileName =aFileName;
+ pData->aFilterName=aFilterName;
+ pData->aFileDate0 =aFileDate0;
+ pData->eCharSet =eCharSet;
+ pData->pLink=nullptr;
+ return std::unique_ptr<SdrObjUserData>(pData);
+}
+
+
+void SdrTextObj::SetTextLink(const OUString& rFileName, const OUString& rFilterName)
+{
+ rtl_TextEncoding eCharSet = osl_getThreadTextEncoding();
+
+ ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
+ if (pData!=nullptr) {
+ ReleaseTextLink();
+ }
+ pData=new ImpSdrObjTextLinkUserData;
+ pData->aFileName=rFileName;
+ pData->aFilterName=rFilterName;
+ pData->eCharSet=eCharSet;
+ AppendUserData(std::unique_ptr<SdrObjUserData>(pData));
+ ImpRegisterLink();
+}
+
+void SdrTextObj::ReleaseTextLink()
+{
+ ImpDeregisterLink();
+ sal_uInt16 nCount=GetUserDataCount();
+ for (sal_uInt16 nNum=nCount; nNum>0;) {
+ nNum--;
+ SdrObjUserData* pData=GetUserData(nNum);
+ if (pData->GetInventor()==SdrInventor::Default && pData->GetId()==SDRUSERDATA_OBJTEXTLINK) {
+ DeleteUserData(nNum);
+ }
+ }
+}
+
+bool SdrTextObj::ReloadLinkedText( bool bForceLoad)
+{
+ ImpSdrObjTextLinkUserData* pData = GetLinkUserData();
+ bool bRet = true;
+
+ if( pData )
+ {
+ DateTime aFileDT( DateTime::EMPTY );
+ bool bExists = true;
+
+ try
+ {
+ INetURLObject aURL( pData->aFileName );
+ DBG_ASSERT( aURL.GetProtocol() != INetProtocol::NotValid, "invalid URL" );
+
+ ::ucbhelper::Content aCnt( aURL.GetMainURL( INetURLObject::DecodeMechanism::NONE ), css::uno::Reference< css::ucb::XCommandEnvironment >(), comphelper::getProcessComponentContext() );
+ css::uno::Any aAny( aCnt.getPropertyValue("DateModified") );
+ css::util::DateTime aDateTime;
+
+ aAny >>= aDateTime;
+ ::utl::typeConvert( aDateTime, aFileDT );
+ }
+ catch( ... )
+ {
+ bExists = false;
+ }
+
+ if( bExists )
+ {
+ bool bLoad = false;
+ if( bForceLoad )
+ bLoad = true;
+ else
+ bLoad = ( aFileDT > pData->aFileDate0 );
+
+ if( bLoad )
+ {
+ bRet = LoadText( pData->aFileName, pData->eCharSet );
+ }
+
+ pData->aFileDate0 = aFileDT;
+ }
+ }
+
+ return bRet;
+}
+
+bool SdrTextObj::LoadText(const OUString& rFileName, rtl_TextEncoding eCharSet)
+{
+ INetURLObject aFileURL( rFileName );
+ bool bRet = false;
+
+ if( aFileURL.GetProtocol() == INetProtocol::NotValid )
+ {
+ OUString aFileURLStr;
+
+ if( osl::FileBase::getFileURLFromSystemPath( rFileName, aFileURLStr ) == osl::FileBase::E_None )
+ aFileURL = INetURLObject( aFileURLStr );
+ else
+ aFileURL.SetSmartURL( rFileName );
+ }
+
+ DBG_ASSERT( aFileURL.GetProtocol() != INetProtocol::NotValid, "invalid URL" );
+
+ std::unique_ptr<SvStream> pIStm(::utl::UcbStreamHelper::CreateStream( aFileURL.GetMainURL( INetURLObject::DecodeMechanism::NONE ), StreamMode::READ ));
+
+ if( pIStm )
+ {
+ pIStm->SetStreamCharSet(GetSOLoadTextEncoding(eCharSet));
+
+ char cRTF[5];
+ cRTF[4] = 0;
+ pIStm->ReadBytes(cRTF, 5);
+
+ bool bRTF = cRTF[0] == '{' && cRTF[1] == '\\' && cRTF[2] == 'r' && cRTF[3] == 't' && cRTF[4] == 'f';
+
+ pIStm->Seek(0);
+
+ if( !pIStm->GetError() )
+ {
+ SetText( *pIStm, aFileURL.GetMainURL( INetURLObject::DecodeMechanism::NONE ), bRTF ? EETextFormat::Rtf : EETextFormat::Text );
+ bRet = true;
+ }
+ }
+
+ return bRet;
+}
+
+ImpSdrObjTextLinkUserData* SdrTextObj::GetLinkUserData() const
+{
+ sal_uInt16 nCount=GetUserDataCount();
+ for (sal_uInt16 nNum=nCount; nNum>0;) {
+ nNum--;
+ SdrObjUserData * pData=GetUserData(nNum);
+ if (pData->GetInventor() == SdrInventor::Default
+ && pData->GetId() == SDRUSERDATA_OBJTEXTLINK)
+ {
+ return static_cast<ImpSdrObjTextLinkUserData *>(pData);
+ }
+ }
+ return nullptr;
+}
+
+void SdrTextObj::ImpRegisterLink()
+{
+ ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
+ sfx2::LinkManager* pLinkManager(getSdrModelFromSdrObject().GetLinkManager());
+ if (pLinkManager!=nullptr && pData!=nullptr && pData->pLink==nullptr) { // don't register twice
+ pData->pLink = new ImpSdrObjTextLink(this);
+ pLinkManager->InsertFileLink(*pData->pLink,sfx2::SvBaseLinkObjectType::ClientFile,pData->aFileName,
+ !pData->aFilterName.isEmpty() ?
+ &pData->aFilterName : nullptr);
+ }
+}
+
+void SdrTextObj::ImpDeregisterLink()
+{
+ ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
+ sfx2::LinkManager* pLinkManager(getSdrModelFromSdrObject().GetLinkManager());
+ if (pLinkManager!=nullptr && pData!=nullptr && pData->pLink!=nullptr) { // don't register twice
+ // when doing Remove, *pLink is deleted implicitly
+ pLinkManager->Remove( pData->pLink.get() );
+ pData->pLink=nullptr;
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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