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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->mpLink = 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->maFileName != aFile ||
pData->maFilterName != aFilter )
{
pData->maFileName = aFile;
pData->maFilterName = aFilter;
pSdrObj->SetChanged();
bForceReload = true;
}
}
}
if (pSdrObj )
pSdrObj->ReloadLinkedText( bForceReload );
return SUCCESS;
}
ImpSdrObjTextLinkUserData::ImpSdrObjTextLinkUserData():
SdrObjUserData(SdrInventor::Default,SDRUSERDATA_OBJTEXTLINK),
maFileDate0( DateTime::EMPTY ),
meCharSet(RTL_TEXTENCODING_DONTKNOW)
{
}
ImpSdrObjTextLinkUserData::~ImpSdrObjTextLinkUserData()
{
}
std::unique_ptr<SdrObjUserData> ImpSdrObjTextLinkUserData::Clone(SdrObject* ) const
{
ImpSdrObjTextLinkUserData* pData = new ImpSdrObjTextLinkUserData;
pData->maFileName = maFileName;
pData->maFilterName = maFilterName;
pData->maFileDate0 = maFileDate0;
pData->meCharSet = meCharSet;
pData->mpLink = 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->maFileName = rFileName;
pData->maFilterName = rFilterName;
pData->meCharSet = 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->maFileName );
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(u"DateModified"_ustr) );
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->maFileDate0 );
if( bLoad )
{
bRet = LoadText( pData->maFileName, pData->meCharSet );
}
pData->maFileDate0 = 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->mpLink==nullptr) { // don't register twice
pData->mpLink = new ImpSdrObjTextLink(this);
pLinkManager->InsertFileLink(*pData->mpLink,sfx2::SvBaseLinkObjectType::ClientFile,pData->maFileName,
!pData->maFilterName.isEmpty() ?
&pData->maFilterName : nullptr);
}
}
void SdrTextObj::ImpDeregisterLink()
{
ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
if (!pData)
return;
sfx2::LinkManager* pLinkManager(getSdrModelFromSdrObject().GetLinkManager());
if (pLinkManager!=nullptr && pData->mpLink!=nullptr) { // don't register twice
// when doing Remove, *pLink is deleted implicitly
pLinkManager->Remove( pData->mpLink.get() );
pData->mpLink=nullptr;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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