svtools/source/config/historyoptions.cxx

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   5  * Copyright 2008 by Sun Microsystems, Inc.
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   7  * OpenOffice.org - a multi-platform office productivity suite
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   9  * $RCSfile: historyoptions.cxx,v $
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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_svtools.hxx"
  33 #ifndef GCC
  34 #endif
  35
  36 //_________________________________________________________________________________________________________________
  37 // includes
  38 //_________________________________________________________________________________________________________________
  39
  40 #include <svtools/historyoptions.hxx>
  41 #include "configitems/historyoptions_const.hxx"
  42 #include <unotools/configmgr.hxx>
  43 #include <unotools/configitem.hxx>
  44 #include <tools/debug.hxx>
  45 #include <com/sun/star/uno/Any.hxx>
  46 #include <com/sun/star/uno/Sequence.hxx>
  47
  48 #ifndef __SGI_STL_DEQUE
  49 #include <deque>
  50 #endif
  51
  52 #ifndef __SGI_STL_ALGORITHM
  53 #include <algorithm>
  54 #endif
  55
  56 #include <rtl/logfile.hxx>
  57 #include "itemholder1.hxx"
  58
  59 #ifndef _COM_SUN_STAR_BEANS_XPROPERTYSET_HPP_
  60 #include <com/sun/star/beans/XPropertySet.hpp>
  61 #endif
  62
  63 #ifndef _COM_SUN_STAR_CONTAINER_XNAMEACCESS_HPP_
  64 #include <com/sun/star/container/XNameAccess.hpp>
  65 #endif
  66
  67 #ifndef _COM_SUN_STAR_CONTAINER_XNAMECONTAINER_HPP_
  68 #include <com/sun/star/container/XNameContainer.hpp>
  69 #endif
  70
  71 #ifndef _COM_SUN_STAR_LANG_XSINGLESERVICEFACTORY_HPP_
  72 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  73 #endif
  74
  75 #ifndef _COMPHELPER_CONFIGURATIONHELPER_HXX_
  76 #include <comphelper/configurationhelper.hxx>
  77 #endif
  78
  79 #ifndef _UNOTOOLS_PROCESSFACTORY_HXX_
  80 #include <unotools/processfactory.hxx>
  81 #endif
  82
  83 #ifndef _SVT_LOGHELPER_HXX
  84 #include "loghelper.hxx"
  85 #endif
  86
  87 //_________________________________________________________________________________________________________________
  88 // namespaces
  89 //_________________________________________________________________________________________________________________
  90
  91 using namespace ::std     ;
  92 using namespace ::utl     ;
  93 using namespace ::rtl     ;
  94 using namespace ::osl     ;
  95 using namespace ::com::sun::star::uno ;
  96 using namespace ::com::sun::star::beans ;
  97
  98 namespace css = ::com::sun::star;
  99
 100 //_________________________________________________________________________________________________________________
 101 // const
 102 //_________________________________________________________________________________________________________________
 103
 104 namespace {
 105     static const ::sal_Int32 s_nOffsetURL               = 0;
 106     static const ::sal_Int32 s_nOffsetFilter            = 1;
 107     static const ::sal_Int32 s_nOffsetTitle             = 2;
 108     static const ::sal_Int32 s_nOffsetPassword          = 3;
 109 }
 110
 111 //_________________________________________________________________________________________________________________
 112 // private declarations!
 113 //_________________________________________________________________________________________________________________
 114
 115 struct IMPL_THistoryItem
 116 {
 117     IMPL_THistoryItem()
 118     {
 119     }
 120
 121     IMPL_THistoryItem( const OUString& sNewURL   ,
 122         const OUString& sNewFilter  ,
 123         const OUString& sNewTitle  ,
 124         const OUString& sNewPassword )
 125     {
 126         sURL  = sNewURL  ;
 127         sFilter  = sNewFilter ;
 128         sTitle  = sNewTitle  ;
 129         sPassword = sNewPassword ;
 130     }
 131
 132     sal_Bool operator==( const OUString& sSearchedURL )
 133     {
 134         return( sURL == sSearchedURL );
 135     }
 136
 137     OUString sURL  ;
 138     OUString sFilter  ;
 139     OUString sTitle  ;
 140     OUString sPassword ;
 141 };
 142
 143 //*****************************************************************************************************************
 144 //  class SvtHistoryOptions_Impl
 145 //  redesigned
 146 //*****************************************************************************************************************
 147 class SvtHistoryOptions_Impl
 148 {
 149 public:
 150     SvtHistoryOptions_Impl();
 151     ~SvtHistoryOptions_Impl();
 152
 153     sal_uInt32 GetSize( EHistoryType eHistory );
 154     void SetSize( EHistoryType eHistory, sal_uInt32 nSize );
 155     void Clear( EHistoryType eHistory );
 156     Sequence< Sequence< PropertyValue > > GetList( EHistoryType eHistory );
 157     void                                  AppendItem(       EHistoryType eHistory ,
 158         const OUString&    sURL     ,
 159         const OUString&    sFilter  ,
 160         const OUString&    sTitle   ,
 161         const OUString&    sPassword );
 162
 163 private:
 164     void impl_truncateList (EHistoryType eHistory, sal_uInt32 nSize);
 165
 166 private:
 167     css::uno::Reference< css::container::XNameAccess > m_xCfg;
 168     css::uno::Reference< css::container::XNameAccess > m_xCommonXCU;
 169 };
 170
 171 //*****************************************************************************************************************
 172 //  constructor
 173 //*****************************************************************************************************************
 174 SvtHistoryOptions_Impl::SvtHistoryOptions_Impl()
 175 {
 176     try
 177     {
 178         m_xCfg = Reference< css::container::XNameAccess > (
 179             ::comphelper::ConfigurationHelper::openConfig(
 180             utl::getProcessServiceFactory(),
 181             s_sHistories,
 182             ::comphelper::ConfigurationHelper::E_STANDARD),
 183             css::uno::UNO_QUERY );
 184
 185         m_xCommonXCU = Reference< css::container::XNameAccess > (
 186             ::comphelper::ConfigurationHelper::openConfig(
 187             utl::getProcessServiceFactory(),
 188             s_sCommonHistory,
 189             ::comphelper::ConfigurationHelper::E_STANDARD),
 190             css::uno::UNO_QUERY );
 191     }
 192     catch(const css::uno::Exception& ex)
 193     {
 194         m_xCfg.clear();
 195         m_xCommonXCU.clear();
 196
 197         LogHelper::logIt(ex);
 198     }
 199 }
 200
 201 //*****************************************************************************************************************
 202 //  destructor
 203 //*****************************************************************************************************************
 204 SvtHistoryOptions_Impl::~SvtHistoryOptions_Impl()
 205 {
 206 }
 207
 208 //*****************************************************************************************************************
 209 //  public method
 210 //  Attention: We return the max. size of our internal lists - That is the capacity not the size!
 211 //*****************************************************************************************************************
 212 sal_uInt32 SvtHistoryOptions_Impl::GetSize( EHistoryType eHistory )
 213 {
 214     sal_uInt32                                       nSize = 0  ;
 215     css::uno::Reference< css::beans::XPropertySet >  xListAccess(m_xCommonXCU, css::uno::UNO_QUERY);
 216
 217     try
 218     {
 219         switch( eHistory )
 220         {
 221         case ePICKLIST:
 222             xListAccess->getPropertyValue(s_sPickListSize) >>= nSize;
 223             break;
 224
 225         case eHISTORY:
 226             xListAccess->getPropertyValue(s_sURLHistorySize) >>= nSize;
 227             break;
 228
 229         case eHELPBOOKMARKS:
 230             xListAccess->getPropertyValue(s_sHelpBookmarksSize) >>= nSize;
 231             break;
 232
 233         default:
 234             break;
 235         }
 236     }
 237     catch(const css::uno::Exception& ex)
 238     {
 239         LogHelper::logIt(ex);
 240     }
 241
 242     return nSize;
 243 }
 244
 245 //*****************************************************************************************************************
 246 //  public method
 247 //  Attention: We return the max. size of our internal lists - That is the capacity not the size!
 248 //*****************************************************************************************************************
 249 void SvtHistoryOptions_Impl::SetSize( EHistoryType eHistory, sal_uInt32 nSize )
 250 {
 251     css::uno::Reference< css::beans::XPropertySet > xListAccess(m_xCommonXCU, css::uno::UNO_QUERY);
 252     if (! xListAccess.is ())
 253         return;
 254
 255     try
 256     {
 257         switch( eHistory )
 258         {
 259         case ePICKLIST:
 260             if(nSize!=GetSize(ePICKLIST))
 261             {
 262                 xListAccess->setPropertyValue(s_sPickListSize, css::uno::makeAny(nSize));
 263                 ::comphelper::ConfigurationHelper::flush(m_xCommonXCU);
 264             }
 265             break;
 266
 267         case eHISTORY:
 268             if(nSize!=GetSize(eHISTORY))
 269             {
 270                 xListAccess->setPropertyValue(s_sURLHistorySize, css::uno::makeAny(nSize));
 271                 ::comphelper::ConfigurationHelper::flush(m_xCommonXCU);
 272             }
 273             break;
 274
 275         case eHELPBOOKMARKS:
 276             if(nSize!=GetSize(eHELPBOOKMARKS))
 277             {
 278                 xListAccess->setPropertyValue(s_sHelpBookmarksSize, css::uno::makeAny(nSize));
 279                 ::comphelper::ConfigurationHelper::flush(m_xCommonXCU);
 280             }
 281             break;
 282
 283         default:
 284             break;
 285         }
 286
 287         impl_truncateList (eHistory, nSize);
 288     }
 289     catch(const css::uno::Exception& ex)
 290     {
 291         LogHelper::logIt(ex);
 292     }
 293 }
 294
 295 //*****************************************************************************************************************
 296 void SvtHistoryOptions_Impl::impl_truncateList ( EHistoryType eHistory, sal_uInt32 nSize )
 297 {
 298     css::uno::Reference< css::container::XNameAccess >    xList;
 299     css::uno::Reference< css::container::XNameContainer > xItemList;
 300     css::uno::Reference< css::container::XNameContainer > xOrderList;
 301     css::uno::Reference< css::beans::XPropertySet >       xSet;
 302
 303     try
 304     {
 305         switch( eHistory )
 306         {
 307         case ePICKLIST:
 308             m_xCfg->getByName(s_sPickList) >>= xList;
 309             break;
 310
 311         case eHISTORY:
 312             m_xCfg->getByName(s_sURLHistory) >>= xList;
 313             break;
 314
 315         case eHELPBOOKMARKS:
 316             m_xCfg->getByName(s_sHelpBookmarks) >>= xList;
 317             break;
 318
 319         default:
 320             break;
 321         }
 322
 323         // If too much items in current list ...
 324         // truncate the oldest items BEFORE you set the new one.
 325         if ( ! xList.is())
 326             return;
 327
 328         xList->getByName(s_sOrderList) >>= xOrderList;
 329         xList->getByName(s_sItemList)  >>= xItemList;
 330
 331         const sal_uInt32 nLength = xOrderList->getElementNames().getLength();
 332         if (nSize < nLength)
 333         {
 334             for (sal_uInt32 i=nLength-1; i>=nSize; --i)
 335             {
 336                 ::rtl::OUString sTmp;
 337                 const ::rtl::OUString sRemove = ::rtl::OUString::valueOf((sal_Int32)i);
 338                 xOrderList->getByName(sRemove) >>= xSet;
 339                 xSet->getPropertyValue(s_sHistoryItemRef) >>= sTmp;
 340                 xItemList->removeByName(sTmp);
 341                 xOrderList->removeByName(sRemove);
 342             }
 343
 344             ::comphelper::ConfigurationHelper::flush(m_xCfg);
 345         }
 346     }
 347     catch(const css::uno::Exception& ex)
 348     {
 349         LogHelper::logIt(ex);
 350     }
 351 }
 352
 353 //*****************************************************************************************************************
 354 //  public method
 355 //  Clear specified history list
 356 //*****************************************************************************************************************
 357 void SvtHistoryOptions_Impl::Clear( EHistoryType eHistory )
 358 {
 359     css::uno::Reference< css::container::XNameAccess >    xListAccess;
 360     css::uno::Reference< css::container::XNameContainer > xNode;
 361     Sequence< ::rtl::OUString >                           lOrders;
 362
 363     try
 364     {
 365         switch( eHistory )
 366         {
 367         case ePICKLIST:
 368             {
 369                 m_xCfg->getByName(s_sPickList) >>= xListAccess;
 370                 break;
 371             }
 372
 373         case eHISTORY:
 374             {
 375                 m_xCfg->getByName(s_sURLHistory) >>= xListAccess;
 376                 break;
 377             }
 378
 379         case eHELPBOOKMARKS:
 380             {
 381                 m_xCfg->getByName(s_sHelpBookmarks) >>= xListAccess;
 382                 break;
 383             }
 384
 385         default:
 386             break;
 387         }
 388
 389         if (xListAccess.is())
 390         {
 391             // clear ItemList
 392             xListAccess->getByName(s_sItemList)  >>= xNode  ;
 393             lOrders = xNode->getElementNames();
 394             const sal_Int32 nLength = lOrders.getLength();
 395             for(sal_Int32 i=0; i<nLength; ++i)
 396                 xNode->removeByName(lOrders[i]);
 397
 398             // clear OrderList
 399             xListAccess->getByName(s_sOrderList) >>= xNode ;
 400             lOrders = xNode->getElementNames();
 401             for(sal_Int32 j=0; j<nLength; ++j)
 402                 xNode->removeByName(lOrders[j]);
 403
 404             ::comphelper::ConfigurationHelper::flush(m_xCfg);
 405         }
 406     }
 407     catch(const css::uno::Exception& ex)
 408     {
 409         LogHelper::logIt(ex);
 410     }
 411 }
 412
 413 //*****************************************************************************************************************
 414 //  public method
 415 //  get a sequence list from the items
 416 //*****************************************************************************************************************
 417 Sequence< Sequence< PropertyValue > > SvtHistoryOptions_Impl::GetList( EHistoryType eHistory )
 418 {
 419     impl_truncateList (eHistory, GetSize (eHistory));
 420
 421     Sequence< Sequence< PropertyValue > > seqReturn; // Set default return value.
 422     Sequence< PropertyValue >             seqProperties( 4 );
 423     Sequence< ::rtl::OUString >           lOrders;
 424
 425     css::uno::Reference< css::container::XNameAccess > xListAccess;
 426     css::uno::Reference< css::container::XNameAccess > xItemList;
 427     css::uno::Reference< css::container::XNameAccess > xOrderList;
 428     css::uno::Reference< css::beans::XPropertySet >    xSet;
 429
 430     seqProperties[s_nOffsetURL       ].Name = HISTORY_PROPERTYNAME_URL;
 431     seqProperties[s_nOffsetFilter    ].Name = HISTORY_PROPERTYNAME_FILTER;
 432     seqProperties[s_nOffsetTitle     ].Name = HISTORY_PROPERTYNAME_TITLE;
 433     seqProperties[s_nOffsetPassword  ].Name = HISTORY_PROPERTYNAME_PASSWORD;
 434
 435     try
 436     {
 437         switch( eHistory )
 438         {
 439         case ePICKLIST:
 440             {
 441                 m_xCfg->getByName(s_sPickList) >>= xListAccess;
 442                 break;
 443             }
 444
 445         case eHISTORY:
 446             {
 447                 m_xCfg->getByName(s_sURLHistory) >>= xListAccess;
 448                 break;
 449             }
 450
 451         case eHELPBOOKMARKS:
 452             {
 453                 m_xCfg->getByName(s_sHelpBookmarks) >>= xListAccess;
 454                 break;
 455             }
 456
 457         default:
 458             break;
 459         }
 460
 461         if (xListAccess.is())
 462         {
 463             xListAccess->getByName(s_sItemList)  >>= xItemList;
 464             xListAccess->getByName(s_sOrderList) >>= xOrderList;
 465
 466             const sal_Int32 nLength = xOrderList->getElementNames().getLength();
 467             Sequence< Sequence< PropertyValue > > aRet(nLength);
 468
 469             for(sal_Int32 nItem=0; nItem<nLength; ++nItem)
 470             {
 471                 ::rtl::OUString sUrl;
 472                 xOrderList->getByName(::rtl::OUString::valueOf(nItem)) >>= xSet;
 473                 xSet->getPropertyValue(s_sHistoryItemRef) >>= sUrl;
 474
 475                 xItemList->getByName(sUrl) >>= xSet;
 476                 seqProperties[s_nOffsetURL  ].Value <<= sUrl;
 477                 xSet->getPropertyValue(s_sFilter)   >>= seqProperties[s_nOffsetFilter   ].Value;
 478                 xSet->getPropertyValue(s_sTitle)    >>= seqProperties[s_nOffsetTitle    ].Value;
 479                 xSet->getPropertyValue(s_sPassword) >>= seqProperties[s_nOffsetPassword ].Value;
 480                 aRet[nItem] = seqProperties;
 481             }
 482             seqReturn = aRet;
 483         }
 484     }
 485     catch(const css::uno::Exception& ex)
 486     {
 487         LogHelper::logIt(ex);
 488     }
 489
 490     return seqReturn;
 491 }
 492
 493 //*****************************************************************************************************************
 494 //  public method
 495 //  implements a deque in XML
 496 //*****************************************************************************************************************
 497 void SvtHistoryOptions_Impl::AppendItem(       EHistoryType eHistory ,
 498                                         const OUString& sURL        ,
 499                                         const OUString& sFilter     ,
 500                                         const OUString& sTitle      ,
 501                                         const OUString& sPassword   )
 502 {
 503     impl_truncateList (eHistory, GetSize (eHistory));
 504
 505     css::uno::Reference< css::container::XNameAccess > xListAccess;
 506     sal_Int32             nMaxSize = 0;
 507
 508     switch(eHistory)
 509     {
 510     case ePICKLIST:
 511         {
 512             m_xCfg->getByName(s_sPickList) >>= xListAccess;
 513             nMaxSize = GetSize(ePICKLIST);
 514         }
 515         break;
 516     case eHISTORY:
 517         {
 518             m_xCfg->getByName(s_sURLHistory) >>= xListAccess;
 519             nMaxSize = GetSize(eHISTORY);
 520         }
 521         break;
 522     case eHELPBOOKMARKS:
 523         {
 524             m_xCfg->getByName(s_sHelpBookmarks) >>= xListAccess;
 525             nMaxSize = GetSize(eHELPBOOKMARKS);
 526         }
 527         break;
 528     default:
 529         break;
 530     }
 531
 532     if (nMaxSize==0)
 533         return;
 534
 535     css::uno::Reference< css::container::XNameContainer > xItemList;
 536     css::uno::Reference< css::container::XNameContainer > xOrderList;
 537     css::uno::Reference< css::beans::XPropertySet >       xSet;
 538
 539     try
 540     {
 541         xListAccess->getByName(s_sItemList)  >>= xItemList;
 542         xListAccess->getByName(s_sOrderList) >>= xOrderList;
 543         sal_Int32 nLength = xOrderList->getElementNames().getLength();
 544
 545         // The item to be appended is already existing!
 546         if (xItemList->hasByName(sURL))
 547         {
 548             for (sal_Int32 i=0; i<nLength; ++i)
 549             {
 550                 ::rtl::OUString sTmp;
 551                 xOrderList->getByName(::rtl::OUString::valueOf(i)) >>= xSet;
 552                 xSet->getPropertyValue(s_sHistoryItemRef) >>= sTmp;
 553
 554                 if(sURL == sTmp)
 555                 {
 556                     ::rtl::OUString sFind;
 557                     xOrderList->getByName( ::rtl::OUString::valueOf(i) ) >>= xSet;
 558                     xSet->getPropertyValue(s_sHistoryItemRef) >>= sFind;
 559                     for (sal_Int32 j=i-1; j>=0; --j)
 560                     {
 561                         css::uno::Reference< css::beans::XPropertySet > xPrevSet;
 562                         css::uno::Reference< css::beans::XPropertySet > xNextSet;
 563                         xOrderList->getByName( ::rtl::OUString::valueOf(j+1) )   >>= xPrevSet;
 564                         xOrderList->getByName( ::rtl::OUString::valueOf(j) )     >>= xNextSet;
 565
 566                         ::rtl::OUString sTemp;
 567                         xNextSet->getPropertyValue(s_sHistoryItemRef) >>= sTemp;
 568                         xPrevSet->setPropertyValue(s_sHistoryItemRef, css::uno::makeAny(sTemp));
 569                     }
 570                     xOrderList->getByName( ::rtl::OUString::valueOf((sal_Int32)0) ) >>= xSet;
 571                     xSet->setPropertyValue(s_sHistoryItemRef, css::uno::makeAny(sFind));
 572
 573                     ::comphelper::ConfigurationHelper::flush(m_xCfg);
 574                     break;
 575                 }
 576             }
 577         }
 578
 579         // The item to be appended is not existing!
 580         else
 581         {
 582             css::uno::Reference< css::lang::XSingleServiceFactory > xFac;
 583             css::uno::Reference< css::uno::XInterface >             xInst;
 584             css::uno::Reference< css::beans::XPropertySet > xPrevSet;
 585             css::uno::Reference< css::beans::XPropertySet > xNextSet;
 586
 587             // Append new item to OrderList.
 588             if ( nLength == nMaxSize )
 589             {
 590                 ::rtl::OUString sRemove;
 591                 xOrderList->getByName(::rtl::OUString::valueOf(nLength-1)) >>= xSet;
 592                 xSet->getPropertyValue(s_sHistoryItemRef) >>= sRemove;
 593                 xItemList->removeByName(sRemove);
 594             }
 595             if ( nLength != nMaxSize )
 596             {
 597                 xFac = css::uno::Reference< css::lang::XSingleServiceFactory >(xOrderList, css::uno::UNO_QUERY);
 598                 xInst = xFac->createInstance();
 599                 ::rtl::OUString sPush = ::rtl::OUString::valueOf(nLength++);
 600                 xOrderList->insertByName(sPush, css::uno::makeAny(xInst));
 601             }
 602             for (sal_Int32 j=nLength-1; j>0; --j)
 603             {
 604                 xOrderList->getByName( ::rtl::OUString::valueOf(j) )   >>= xPrevSet;
 605                 xOrderList->getByName( ::rtl::OUString::valueOf(j-1) ) >>= xNextSet;
 606                 ::rtl::OUString sTemp;
 607                 xNextSet->getPropertyValue(s_sHistoryItemRef) >>= sTemp;
 608                 xPrevSet->setPropertyValue(s_sHistoryItemRef, css::uno::makeAny(sTemp));
 609             }
 610             xOrderList->getByName( ::rtl::OUString::valueOf((sal_Int32)0) ) >>= xSet;
 611             xSet->setPropertyValue(s_sHistoryItemRef, css::uno::makeAny(sURL));
 612
 613             // Append the item to ItemList.
 614             xFac = css::uno::Reference< css::lang::XSingleServiceFactory >(xItemList, css::uno::UNO_QUERY);
 615             xInst = xFac->createInstance();
 616             xItemList->insertByName(sURL, css::uno::makeAny(xInst));
 617             xSet = css::uno::Reference< css::beans::XPropertySet >(xInst, css::uno::UNO_QUERY);
 618             xSet->setPropertyValue(s_sFilter, css::uno::makeAny(sFilter));
 619             xSet->setPropertyValue(s_sTitle, css::uno::makeAny(sTitle));
 620             xSet->setPropertyValue(s_sPassword, css::uno::makeAny(sPassword));
 621
 622             ::comphelper::ConfigurationHelper::flush(m_xCfg);
 623         }
 624     }
 625     catch(const css::uno::Exception& ex)
 626     {
 627         LogHelper::logIt(ex);
 628     }
 629 }
 630
 631 //*****************************************************************************************************************
 632 // initialize static member
 633 // DON'T DO IT IN YOUR HEADER!
 634 // see definition for further informations
 635 //*****************************************************************************************************************
 636 SvtHistoryOptions_Impl*  SvtHistoryOptions::m_pDataContainer = NULL ;
 637 sal_Int32     SvtHistoryOptions::m_nRefCount  = 0  ;
 638
 639 //*****************************************************************************************************************
 640 // constructor
 641 //*****************************************************************************************************************
 642 SvtHistoryOptions::SvtHistoryOptions()
 643 {
 644     // Global access, must be guarded (multithreading!).
 645     MutexGuard aGuard( GetOwnStaticMutex() );
 646     // Increase ouer refcount ...
 647     ++m_nRefCount;
 648     // ... and initialize ouer data container only if it not already exist!
 649     if( m_pDataContainer == NULL )
 650     {
 651         RTL_LOGFILE_CONTEXT(aLog, "svtools ( ??? ) ::SvtHistoryOptions_Impl::ctor()");
 652         m_pDataContainer = new SvtHistoryOptions_Impl;
 653
 654         ItemHolder1::holdConfigItem(E_HISTORYOPTIONS);
 655     }
 656 }
 657
 658 //*****************************************************************************************************************
 659 // destructor
 660 //*****************************************************************************************************************
 661 SvtHistoryOptions::~SvtHistoryOptions()
 662 {
 663     // Global access, must be guarded (multithreading!)
 664     MutexGuard aGuard( GetOwnStaticMutex() );
 665     // Decrease ouer refcount.
 666     --m_nRefCount;
 667     // If last instance was deleted ...
 668     // we must destroy ouer static data container!
 669     if( m_nRefCount <= 0 )
 670     {
 671         delete m_pDataContainer;
 672         m_pDataContainer = NULL;
 673     }
 674 }
 675
 676 //*****************************************************************************************************************
 677 // public method
 678 //*****************************************************************************************************************
 679 sal_uInt32 SvtHistoryOptions::GetSize( EHistoryType eHistory ) const
 680 {
 681     MutexGuard aGuard( GetOwnStaticMutex() );
 682     return m_pDataContainer->GetSize( eHistory );
 683 }
 684
 685 //*****************************************************************************************************************
 686 // public method
 687 //*****************************************************************************************************************
 688 void SvtHistoryOptions::SetSize( EHistoryType eHistory, sal_uInt32 nSize )
 689 {
 690     MutexGuard aGuard( GetOwnStaticMutex() );
 691     m_pDataContainer->SetSize( eHistory, nSize );
 692 }
 693
 694 //*****************************************************************************************************************
 695 // public method
 696 //*****************************************************************************************************************
 697 void SvtHistoryOptions::Clear( EHistoryType eHistory )
 698 {
 699     MutexGuard aGuard( GetOwnStaticMutex() );
 700     m_pDataContainer->Clear( eHistory );
 701 }
 702
 703 //*****************************************************************************************************************
 704 // public method
 705 //*****************************************************************************************************************
 706 Sequence< Sequence< PropertyValue > > SvtHistoryOptions::GetList( EHistoryType eHistory ) const
 707 {
 708     MutexGuard aGuard( GetOwnStaticMutex() );
 709     return m_pDataContainer->GetList( eHistory );
 710 }
 711
 712 //*****************************************************************************************************************
 713 // public method
 714 //*****************************************************************************************************************
 715 void SvtHistoryOptions::AppendItem(   EHistoryType eHistory ,
 716                                    const OUString&  sURL  ,
 717                                    const OUString&  sFilter  ,
 718                                    const OUString&  sTitle  ,
 719                                    const OUString&  sPassword )
 720 {
 721     MutexGuard aGuard( GetOwnStaticMutex() );
 722     m_pDataContainer->AppendItem( eHistory, sURL, sFilter, sTitle, sPassword );
 723 }
 724
 725 //*****************************************************************************************************************
 726 // private method
 727 //*****************************************************************************************************************
 728 Mutex& SvtHistoryOptions::GetOwnStaticMutex()
 729 {
 730     // Initialize static mutex only for one time!
 731     static Mutex* pMutex = NULL;
 732     // If these method first called (Mutex not already exist!) ...
 733     if( pMutex == NULL )
 734     {
 735         // ... we must create a new one. Protect follow code with the global mutex -
 736         // It must be - we create a static variable!
 737         MutexGuard aGuard( Mutex::getGlobalMutex() );
 738         // We must check our pointer again - because it can be that another instance of ouer class will be fastr then these!
 739         if( pMutex == NULL )
 740         {
 741             // Create the new mutex and set it for return on static variable.
 742             static Mutex aMutex;
 743             pMutex = &aMutex;
 744         }
 745     }
 746     // Return new created or already existing mutex object.
 747     return *pMutex;
 748 }