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 <unotools/ucbstreamhelper.hxx>
  24 #include <unotools/localfilehelper.hxx>
  25 #include <ucbhelper/content.hxx>
  26 #include <unotools/datetime.hxx>
  27 #include <svx/svdotext.hxx>
  28 #include <svx/svdmodel.hxx>
  29 #include <editeng/editdata.hxx>
  30 #include <sfx2/lnkbase.hxx>
  31 #include <sfx2/linkmgr.hxx>
  32 #include <tools/urlobj.hxx>
  33 #include <svl/urihelper.hxx>
  34 #include <tools/tenccvt.hxx>
  35
  36
  37 class ImpSdrObjTextLink: public ::sfx2::SvBaseLink
  38 {
  39     SdrTextObj*                 pSdrObj;
  40
  41 public:
  42     ImpSdrObjTextLink( SdrTextObj* pObj1 )
  43         : ::sfx2::SvBaseLink( ::sfx2::LINKUPDATE_ONCALL, FORMAT_FILE ),
  44             pSdrObj( pObj1 )
  45     {}
  46     virtual ~ImpSdrObjTextLink();
  47
  48     virtual void Closed();
  49     virtual ::sfx2::SvBaseLink::UpdateResult DataChanged(
  50         const String& rMimeType, const ::com::sun::star::uno::Any & rValue );
  51
  52     bool Connect() { return 0 != SvBaseLink::GetRealObject(); }
  53 };
  54
  55 ImpSdrObjTextLink::~ImpSdrObjTextLink()
  56 {
  57 }
  58
  59 void ImpSdrObjTextLink::Closed()
  60 {
  61     if (pSdrObj )
  62     {
  63         // set pLink of the object to NULL, because we are destroying the link instance now
  64         ImpSdrObjTextLinkUserData* pData=pSdrObj->GetLinkUserData();
  65         if (pData!=NULL) pData->pLink=NULL;
  66         pSdrObj->ReleaseTextLink();
  67     }
  68     SvBaseLink::Closed();
  69 }
  70
  71
  72 ::sfx2::SvBaseLink::UpdateResult ImpSdrObjTextLink::DataChanged(
  73     const String& /*rMimeType*/, const ::com::sun::star::uno::Any & /*rValue */)
  74 {
  75     bool bForceReload = false;
  76     SdrModel* pModel = pSdrObj ? pSdrObj->GetModel() : 0;
  77     sfx2::LinkManager* pLinkManager= pModel ? pModel->GetLinkManager() : 0;
  78     if( pLinkManager )
  79     {
  80         ImpSdrObjTextLinkUserData* pData=pSdrObj->GetLinkUserData();
  81         if( pData )
  82         {
  83             String aFile;
  84             String aFilter;
  85             pLinkManager->GetDisplayNames( this, 0,&aFile, 0, &aFilter );
  86
  87             if( !pData->aFileName.Equals( aFile ) ||
  88                 !pData->aFilterName.Equals( aFilter ))
  89             {
  90                 pData->aFileName = aFile;
  91                 pData->aFilterName = aFilter;
  92                 pSdrObj->SetChanged();
  93                 bForceReload = true;
  94             }
  95         }
  96     }
  97     if (pSdrObj )
  98         pSdrObj->ReloadLinkedText( bForceReload );
  99
 100     return SUCCESS;
 101 }
 102
 103
 104 TYPEINIT1(ImpSdrObjTextLinkUserData,SdrObjUserData);
 105
 106 ImpSdrObjTextLinkUserData::ImpSdrObjTextLinkUserData(SdrTextObj* pObj1):
 107     SdrObjUserData(SdrInventor,SDRUSERDATA_OBJTEXTLINK,0),
 108     pObj(pObj1),
 109     aFileDate0( DateTime::EMPTY ),
 110     pLink(NULL),
 111     eCharSet(RTL_TEXTENCODING_DONTKNOW)
 112 {
 113 }
 114
 115 ImpSdrObjTextLinkUserData::~ImpSdrObjTextLinkUserData()
 116 {
 117     delete pLink;
 118 }
 119
 120 SdrObjUserData* ImpSdrObjTextLinkUserData::Clone(SdrObject* pObj1) const
 121 {
 122     ImpSdrObjTextLinkUserData* pData=new ImpSdrObjTextLinkUserData((SdrTextObj*)pObj1);
 123     pData->aFileName  =aFileName;
 124     pData->aFilterName=aFilterName;
 125     pData->aFileDate0 =aFileDate0;
 126     pData->eCharSet   =eCharSet;
 127     pData->pLink=NULL;
 128     return pData;
 129 }
 130
 131
 132 void SdrTextObj::SetTextLink(const String& rFileName, const String& rFilterName, rtl_TextEncoding eCharSet)
 133 {
 134     if(eCharSet == RTL_TEXTENCODING_DONTKNOW)
 135         eCharSet = osl_getThreadTextEncoding();
 136
 137     ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
 138     if (pData!=NULL) {
 139         ReleaseTextLink();
 140     }
 141     pData=new ImpSdrObjTextLinkUserData(this);
 142     pData->aFileName=rFileName;
 143     pData->aFilterName=rFilterName;
 144     pData->eCharSet=eCharSet;
 145     AppendUserData(pData);
 146     ImpLinkAnmeldung();
 147 }
 148
 149 void SdrTextObj::ReleaseTextLink()
 150 {
 151     ImpLinkAbmeldung();
 152     sal_uInt16 nAnz=GetUserDataCount();
 153     for (sal_uInt16 nNum=nAnz; nNum>0;) {
 154         nNum--;
 155         SdrObjUserData* pData=GetUserData(nNum);
 156         if (pData->GetInventor()==SdrInventor && pData->GetId()==SDRUSERDATA_OBJTEXTLINK) {
 157             DeleteUserData(nNum);
 158         }
 159     }
 160 }
 161
 162 bool SdrTextObj::ReloadLinkedText( bool bForceLoad)
 163 {
 164     ImpSdrObjTextLinkUserData*  pData = GetLinkUserData();
 165     bool                        bRet = true;
 166
 167     if( pData )
 168     {
 169         DateTime                    aFileDT( DateTime::EMPTY );
 170         bool                        bExists = true, bLoad = false;
 171
 172         try
 173         {
 174             INetURLObject aURL( pData->aFileName );
 175             DBG_ASSERT( aURL.GetProtocol() != INET_PROT_NOT_VALID, "invalid URL" );
 176
 177             ::ucbhelper::Content aCnt( aURL.GetMainURL( INetURLObject::NO_DECODE ), ::com::sun::star::uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >(), comphelper::getProcessComponentContext() );
 178             ::com::sun::star::uno::Any aAny( aCnt.getPropertyValue( OUString( "DateModified" ) ) );
 179             ::com::sun::star::util::DateTime aDateTime;
 180
 181             aAny >>= aDateTime;
 182             ::utl::typeConvert( aDateTime, aFileDT );
 183         }
 184         catch( ... )
 185         {
 186             bExists = false;
 187         }
 188
 189         if( bExists )
 190         {
 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 String& rFileName, const String& /*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 #ifdef __GNUC__
 272         pLinkManager->InsertFileLink(*pData->pLink,OBJECT_CLIENT_FILE,pData->aFileName,
 273                                      pData->aFilterName.Len() ?
 274                                       &pData->aFilterName : (const String *)NULL,
 275                                      (const String *)NULL);
 276 #else
 277         pLinkManager->InsertFileLink(*pData->pLink,OBJECT_CLIENT_FILE,pData->aFileName,
 278                                      pData->aFilterName.Len() ? &pData->aFilterName : NULL,NULL);
 279 #endif
 280         pData->pLink->Connect();
 281     }
 282 }
 283
 284 void SdrTextObj::ImpLinkAbmeldung()
 285 {
 286     ImpSdrObjTextLinkUserData* pData=GetLinkUserData();
 287     sfx2::LinkManager* pLinkManager=pModel!=NULL ? pModel->GetLinkManager() : NULL;
 288     if (pLinkManager!=NULL && pData!=NULL && pData->pLink!=NULL) { // don't register twice
 289         // when doing Remove, *pLink is deleted implicitly
 290         pLinkManager->Remove( pData->pLink );
 291         pData->pLink=NULL;
 292     }
 293 }
 294
 295 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */