svx/source/svdraw/svdotxln.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "sal/config.h"
  21
  22 #include <comphelper/processfactory.hxx>
  23 #include <osl/thread.h>
  24 #include <unotools/ucbstreamhelper.hxx>
  25 #include <unotools/localfilehelper.hxx>
  26 #include <ucbhelper/content.hxx>
  27 #include <unotools/datetime.hxx>
  28 #include <svx/svdotext.hxx>
  29 #include <svx/svdmodel.hxx>
  30 #include <editeng/editdata.hxx>
  31 #include <sfx2/lnkbase.hxx>
  32 #include <sfx2/linkmgr.hxx>
  33 #include <tools/urlobj.hxx>
  34 #include <svl/urihelper.hxx>
  35 #include <tools/tenccvt.hxx>
  36
  37
  38 class ImpSdrObjTextLink: public ::sfx2::SvBaseLink
  39 {
  40     SdrTextObj*                 pSdrObj;
  41
  42 public:
  43     ImpSdrObjTextLink( SdrTextObj* pObj1 )
  44         : ::sfx2::SvBaseLink( ::sfx2::LINKUPDATE_ONCALL, FORMAT_FILE ),
  45             pSdrObj( pObj1 )
  46     {}
  47     virtual ~ImpSdrObjTextLink();
  48
  49     virtual void Closed() SAL_OVERRIDE;
  50     virtual ::sfx2::SvBaseLink::UpdateResult DataChanged(
  51         const OUString& rMimeType, const ::com::sun::star::uno::Any & rValue ) SAL_OVERRIDE;
  52 };
  53
  54 ImpSdrObjTextLink::~ImpSdrObjTextLink()
  55 {
  56 }
  57
  58 void ImpSdrObjTextLink::Closed()
  59 {
  60     if (pSdrObj )
  61     {
  62         // set pLink of the object to NULL, because we are destroying the link instance now
  63         ImpSdrObjTextLinkUserData* pData=pSdrObj->GetLinkUserData();
  64         if (pData!=NULL) pData->pLink=NULL;
  65         pSdrObj->ReleaseTextLink();
  66     }
  67     SvBaseLink::Closed();
  68 }
  69
  70
  71 ::sfx2::SvBaseLink::UpdateResult ImpSdrObjTextLink::DataChanged(
  72     const OUString& /*rMimeType*/, const ::com::sun::star::uno::Any & /*rValue */)
  73 {
  74     bool bForceReload = false;
  75     SdrModel* pModel = pSdrObj ? pSdrObj->GetModel() : 0;
  76     sfx2::LinkManager* pLinkManager= pModel ? pModel->GetLinkManager() : 0;
  77     if( pLinkManager )
  78     {
  79         ImpSdrObjTextLinkUserData* pData=pSdrObj->GetLinkUserData();
  80         if( pData )
  81         {
  82             OUString aFile;
  83             OUString aFilter;
  84             pLinkManager->GetDisplayNames( this, 0,&aFile, 0, &aFilter );
  85
  86             if( pData->aFileName != aFile ||
  87                 pData->aFilterName != aFilter )
  88             {
  89                 pData->aFileName = aFile;
  90                 pData->aFilterName = aFilter;
  91                 pSdrObj->SetChanged();
  92                 bForceReload = true;
  93             }
  94         }
  95     }
  96     if (pSdrObj )
  97         pSdrObj->ReloadLinkedText( bForceReload );
  98
  99     return SUCCESS;
 100 }
 101
 102
 103 TYPEINIT1(ImpSdrObjTextLinkUserData,SdrObjUserData);
 104
 105 ImpSdrObjTextLinkUserData::ImpSdrObjTextLinkUserData(SdrTextObj* pObj1):
 106     SdrObjUserData(SdrInventor,SDRUSERDATA_OBJTEXTLINK,0),
 107     pObj(pObj1),
 108     aFileDate0( DateTime::EMPTY ),
 109     pLink(NULL),
 110     eCharSet(RTL_TEXTENCODING_DONTKNOW)
 111 {
 112 }
 113
 114 ImpSdrObjTextLinkUserData::~ImpSdrObjTextLinkUserData()
 115 {
 116     delete pLink;
 117 }
 118
 119 SdrObjUserData* ImpSdrObjTextLinkUserData::Clone(SdrObject* pObj1) const
 120 {
 121     ImpSdrObjTextLinkUserData* pData=new ImpSdrObjTextLinkUserData((SdrTextObj*)pObj1);
 122     pData->aFileName  =aFileName;
 123     pData->aFilterName=aFilterName;
 124     pData->aFileDate0 =aFileDate0;
 125     pData->eCharSet   =eCharSet;
 126     pData->pLink=NULL;
 127     return pData;
 128 }
 129
 130
 131 void SdrTextObj::SetTextLink(const OUString& rFileName, const OUString& rFilterName, rtl_TextEncoding eCharSet)
 132 {
 133     if(eCharSet == RTL_TEXTENCODING_DONTKNOW)
 134         eCharSet = osl_getThreadTextEncoding();
 135
 136     ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
 137     if (pData!=NULL) {
 138         ReleaseTextLink();
 139     }
 140     pData=new ImpSdrObjTextLinkUserData(this);
 141     pData->aFileName=rFileName;
 142     pData->aFilterName=rFilterName;
 143     pData->eCharSet=eCharSet;
 144     AppendUserData(pData);
 145     ImpLinkAnmeldung();
 146 }
 147
 148 void SdrTextObj::ReleaseTextLink()
 149 {
 150     ImpLinkAbmeldung();
 151     sal_uInt16 nAnz=GetUserDataCount();
 152     for (sal_uInt16 nNum=nAnz; nNum>0;) {
 153         nNum--;
 154         SdrObjUserData* pData=GetUserData(nNum);
 155         if (pData->GetInventor()==SdrInventor && pData->GetId()==SDRUSERDATA_OBJTEXTLINK) {
 156             DeleteUserData(nNum);
 157         }
 158     }
 159 }
 160
 161 bool SdrTextObj::ReloadLinkedText( bool bForceLoad)
 162 {
 163     ImpSdrObjTextLinkUserData*  pData = GetLinkUserData();
 164     bool                        bRet = true;
 165
 166     if( pData )
 167     {
 168         DateTime                    aFileDT( DateTime::EMPTY );
 169         bool                        bExists = true;
 170
 171         try
 172         {
 173             INetURLObject aURL( pData->aFileName );
 174             DBG_ASSERT( aURL.GetProtocol() != INET_PROT_NOT_VALID, "invalid URL" );
 175
 176             ::ucbhelper::Content aCnt( aURL.GetMainURL( INetURLObject::NO_DECODE ), ::com::sun::star::uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >(), comphelper::getProcessComponentContext() );
 177             ::com::sun::star::uno::Any aAny( aCnt.getPropertyValue("DateModified") );
 178             ::com::sun::star::util::DateTime aDateTime;
 179
 180             aAny >>= aDateTime;
 181             ::utl::typeConvert( aDateTime, aFileDT );
 182         }
 183         catch( ... )
 184         {
 185             bExists = false;
 186         }
 187
 188         if( bExists )
 189         {
 190             bool bLoad = false;
 191             if( bForceLoad )
 192                 bLoad = true;
 193             else
 194                 bLoad = ( aFileDT > pData->aFileDate0 );
 195
 196             if( bLoad )
 197             {
 198                 bRet = LoadText( pData->aFileName, pData->aFilterName, pData->eCharSet );
 199             }
 200
 201             pData->aFileDate0 = aFileDT;
 202         }
 203     }
 204
 205     return bRet;
 206 }
 207
 208 bool SdrTextObj::LoadText(const OUString& rFileName, const OUString& /*rFilterName*/, rtl_TextEncoding eCharSet)
 209 {
 210     INetURLObject   aFileURL( rFileName );
 211     bool            bRet = false;
 212
 213     if( aFileURL.GetProtocol() == INET_PROT_NOT_VALID )
 214     {
 215         OUString aFileURLStr;
 216
 217         if( ::utl::LocalFileHelper::ConvertPhysicalNameToURL( rFileName, aFileURLStr ) )
 218             aFileURL = INetURLObject( aFileURLStr );
 219         else
 220             aFileURL.SetSmartURL( rFileName );
 221     }
 222
 223     DBG_ASSERT( aFileURL.GetProtocol() != INET_PROT_NOT_VALID, "invalid URL" );
 224
 225     SvStream* pIStm = ::utl::UcbStreamHelper::CreateStream( aFileURL.GetMainURL( INetURLObject::NO_DECODE ), STREAM_READ );
 226
 227     if( pIStm )
 228     {
 229         pIStm->SetStreamCharSet(GetSOLoadTextEncoding(eCharSet));
 230
 231         char cRTF[5];
 232         cRTF[4] = 0;
 233         pIStm->Read(cRTF, 5);
 234
 235         bool bRTF = cRTF[0] == '{' && cRTF[1] == '\\' && cRTF[2] == 'r' && cRTF[3] == 't' && cRTF[4] == 'f';
 236
 237         pIStm->Seek(0);
 238
 239         if( !pIStm->GetError() )
 240         {
 241             SetText( *pIStm, aFileURL.GetMainURL( INetURLObject::NO_DECODE ), sal::static_int_cast< sal_uInt16 >( bRTF ? EE_FORMAT_RTF : EE_FORMAT_TEXT ) );
 242             bRet = true;
 243         }
 244
 245         delete pIStm;
 246     }
 247
 248     return bRet;
 249 }
 250
 251 ImpSdrObjTextLinkUserData* SdrTextObj::GetLinkUserData() const
 252 {
 253     ImpSdrObjTextLinkUserData* pData=NULL;
 254     sal_uInt16 nAnz=GetUserDataCount();
 255     for (sal_uInt16 nNum=nAnz; nNum>0 && pData==NULL;) {
 256         nNum--;
 257         pData=(ImpSdrObjTextLinkUserData*)GetUserData(nNum);
 258         if (pData->GetInventor()!=SdrInventor || pData->GetId()!=SDRUSERDATA_OBJTEXTLINK) {
 259             pData=NULL;
 260         }
 261     }
 262     return pData;
 263 }
 264
 265 void SdrTextObj::ImpLinkAnmeldung()
 266 {
 267     ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
 268     sfx2::LinkManager* pLinkManager=pModel!=NULL ? pModel->GetLinkManager() : NULL;
 269     if (pLinkManager!=NULL && pData!=NULL && pData->pLink==NULL) { // don't register twice
 270         pData->pLink = new ImpSdrObjTextLink(this);
 271         pLinkManager->InsertFileLink(*pData->pLink,OBJECT_CLIENT_FILE,pData->aFileName,
 272                                      !pData->aFilterName.isEmpty() ?
 273                                       &pData->aFilterName : NULL,
 274                                      NULL);
 275     }
 276 }
 277
 278 void SdrTextObj::ImpLinkAbmeldung()
 279 {
 280     ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
 281     sfx2::LinkManager* pLinkManager=pModel!=NULL ? pModel->GetLinkManager() : NULL;
 282     if (pLinkManager!=NULL && pData!=NULL && pData->pLink!=NULL) { // don't register twice
 283         // when doing Remove, *pLink is deleted implicitly
 284         pLinkManager->Remove( pData->pLink );
 285         pData->pLink=NULL;
 286     }
 287 }
 288
 289 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */