src/msw/mimetype.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/mimetype.cpp
   3 // Purpose:     classes and functions to manage MIME types
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     23.09.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence (part of wxExtra library)
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_MIMETYPE
  20
  21 #include "wx/msw/mimetype.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/dynarray.h"
  25     #include "wx/string.h"
  26     #include "wx/intl.h"
  27     #include "wx/log.h"
  28     #include "wx/crt.h"
  29     #if wxUSE_GUI
  30         #include "wx/icon.h"
  31         #include "wx/msgdlg.h"
  32     #endif
  33 #endif //WX_PRECOMP
  34
  35 #include "wx/file.h"
  36 #include "wx/iconloc.h"
  37 #include "wx/confbase.h"
  38
  39 #ifdef __WXMSW__
  40     #include "wx/msw/registry.h"
  41     #include "wx/msw/private.h"
  42 #endif // OS
  43
  44 // other standard headers
  45 #include <ctype.h>
  46
  47 // in case we're compiling in non-GUI mode
  48 class WXDLLIMPEXP_FWD_CORE wxIcon;
  49
  50 // These classes use Windows registry to retrieve the required information.
  51 //
  52 // Keys used (not all of them are documented, so it might actually stop working
  53 // in future versions of Windows...):
  54 //  1. "HKCR\MIME\Database\Content Type" contains subkeys for all known MIME
  55 //     types, each key has a string value "Extension" which gives (dot preceded)
  56 //     extension for the files of this MIME type.
  57 //
  58 //  2. "HKCR\.ext" contains
  59 //   a) unnamed value containing the "filetype"
  60 //   b) value "Content Type" containing the MIME type
  61 //
  62 // 3. "HKCR\filetype" contains
  63 //   a) unnamed value containing the description
  64 //   b) subkey "DefaultIcon" with single unnamed value giving the icon index in
  65 //      an icon file
  66 //   c) shell\open\command and shell\open\print subkeys containing the commands
  67 //      to open/print the file (the positional parameters are introduced by %1,
  68 //      %2, ... in these strings, we change them to %s ourselves)
  69
  70 // although I don't know of any official documentation which mentions this
  71 // location, uses it, so it isn't likely to change
  72 static const wxChar *MIME_DATABASE_KEY = wxT("MIME\\Database\\Content Type\\");
  73
  74 // this function replaces Microsoft %1 with Unix-like %s
  75 static bool CanonicalizeParams(wxString& command)
  76 {
  77     // transform it from '%1' to '%s' style format string (now also test for %L
  78     // as apparently MS started using it as well for the same purpose)
  79
  80     // NB: we don't make any attempt to verify that the string is valid, i.e.
  81     //     doesn't contain %2, or second %1 or .... But we do make sure that we
  82     //     return a string with _exactly_ one '%s'!
  83     bool foundFilename = false;
  84     size_t len = command.length();
  85     for ( size_t n = 0; (n < len) && !foundFilename; n++ )
  86     {
  87         if ( command[n] == wxT('%') &&
  88                 (n + 1 < len) &&
  89                 (command[n + 1] == wxT('1') || command[n + 1] == wxT('L')) )
  90         {
  91             // replace it with '%s'
  92             command[n + 1] = wxT('s');
  93
  94             foundFilename = true;
  95         }
  96     }
  97
  98     return foundFilename;
  99 }
 100
 101 void wxFileTypeImpl::Init(const wxString& strFileType, const wxString& ext)
 102 {
 103     // VZ: does it? (FIXME)
 104     wxCHECK_RET( !ext.empty(), wxT("needs an extension") );
 105
 106     if ( ext[0u] != wxT('.') ) {
 107         m_ext = wxT('.');
 108     }
 109     m_ext << ext;
 110
 111     m_strFileType = strFileType;
 112     if ( !strFileType ) {
 113         m_strFileType = m_ext.AfterFirst('.') + wxT("_auto_file");
 114     }
 115 }
 116
 117 wxString wxFileTypeImpl::GetVerbPath(const wxString& verb) const
 118 {
 119     wxString path;
 120     path << m_strFileType << wxT("\\shell\\") << verb << wxT("\\command");
 121     return path;
 122 }
 123
 124 size_t wxFileTypeImpl::GetAllCommands(wxArrayString *verbs,
 125                                       wxArrayString *commands,
 126                                       const wxFileType::MessageParameters& params) const
 127 {
 128     wxCHECK_MSG( !m_ext.empty(), 0, wxT("GetAllCommands() needs an extension") );
 129
 130     if ( m_strFileType.empty() )
 131     {
 132         // get it from the registry
 133         wxFileTypeImpl *self = wxConstCast(this, wxFileTypeImpl);
 134         wxRegKey rkey(wxRegKey::HKCR, m_ext);
 135         if ( !rkey.Exists() || !rkey.QueryValue(wxEmptyString, self->m_strFileType) )
 136         {
 137             wxLogDebug(wxT("Can't get the filetype for extension '%s'."),
 138                        m_ext.c_str());
 139
 140             return 0;
 141         }
 142     }
 143
 144     // enum all subkeys of HKCR\filetype\shell
 145     size_t count = 0;
 146     wxRegKey rkey(wxRegKey::HKCR, m_strFileType  + wxT("\\shell"));
 147     long dummy;
 148     wxString verb;
 149     bool ok = rkey.GetFirstKey(verb, dummy);
 150     while ( ok )
 151     {
 152         wxString command = wxFileType::ExpandCommand(GetCommand(verb), params);
 153
 154         // we want the open bverb to eb always the first
 155
 156         if ( verb.CmpNoCase(wxT("open")) == 0 )
 157         {
 158             if ( verbs )
 159                 verbs->Insert(verb, 0);
 160             if ( commands )
 161                 commands->Insert(command, 0);
 162         }
 163         else // anything else than "open"
 164         {
 165             if ( verbs )
 166                 verbs->Add(verb);
 167             if ( commands )
 168                 commands->Add(command);
 169         }
 170
 171         count++;
 172
 173         ok = rkey.GetNextKey(verb, dummy);
 174     }
 175
 176     return count;
 177 }
 178
 179 // ----------------------------------------------------------------------------
 180 // modify the registry database
 181 // ----------------------------------------------------------------------------
 182
 183 bool wxFileTypeImpl::EnsureExtKeyExists()
 184 {
 185     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 186     if ( !rkey.Exists() )
 187     {
 188         if ( !rkey.Create() || !rkey.SetValue(wxEmptyString, m_strFileType) )
 189         {
 190             wxLogError(_("Failed to create registry entry for '%s' files."),
 191                        m_ext.c_str());
 192             return false;
 193         }
 194     }
 195
 196     return true;
 197 }
 198
 199 // ----------------------------------------------------------------------------
 200 // get the command to use
 201 // ----------------------------------------------------------------------------
 202
 203 static wxString wxFileTypeImplGetCurVer(const wxString& progId)
 204 {
 205     wxRegKey key(wxRegKey::HKCR, progId + wxT("\\CurVer"));
 206     if (key.Exists())
 207     {
 208         wxString value;
 209         if (key.QueryValue(wxEmptyString, value))
 210             return value;
 211     }
 212     return progId;
 213 }
 214
 215 wxString wxFileTypeImpl::GetCommand(const wxString& verb) const
 216 {
 217     // suppress possible error messages
 218     wxLogNull nolog;
 219     wxString strKey;
 220
 221     {
 222         wxRegKey explorerKey(wxRegKey::HKCU, wxT("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\") + m_ext);
 223         if (explorerKey.Exists())
 224         {
 225             if (explorerKey.Open(wxRegKey::Read))
 226             {
 227                 if (explorerKey.QueryValue(wxT("Progid"), strKey))
 228                 {
 229                     strKey = wxFileTypeImplGetCurVer(strKey);
 230                 }
 231             }
 232         }
 233     }
 234
 235     if (!strKey && wxRegKey(wxRegKey::HKCR, m_ext + wxT("\\shell")).Exists())
 236         strKey = m_ext;
 237
 238     if ( !strKey && !m_strFileType.empty())
 239     {
 240         wxString fileType = wxFileTypeImplGetCurVer(m_strFileType);
 241         if (wxRegKey(wxRegKey::HKCR, fileType + wxT("\\shell")).Exists())
 242             strKey = fileType;
 243     }
 244
 245     if ( !strKey )
 246     {
 247         // no info
 248         return wxEmptyString;
 249     }
 250
 251     strKey << wxT("\\shell\\") << verb;
 252     wxRegKey key(wxRegKey::HKCR, strKey + wxT("\\command"));
 253     wxString command;
 254     if ( key.Open(wxRegKey::Read) ) {
 255         // it's the default value of the key
 256         if ( key.QueryValue(wxEmptyString, command) ) {
 257             bool foundFilename = CanonicalizeParams(command);
 258
 259 #if wxUSE_IPC
 260             // look whether we must issue some DDE requests to the application
 261             // (and not just launch it)
 262             strKey += wxT("\\DDEExec");
 263             wxRegKey keyDDE(wxRegKey::HKCR, strKey);
 264             if ( keyDDE.Open(wxRegKey::Read) ) {
 265                 wxString ddeCommand, ddeServer, ddeTopic;
 266                 keyDDE.QueryValue(wxEmptyString, ddeCommand);
 267                 ddeCommand.Replace(wxT("%1"), wxT("%s"));
 268
 269                 wxRegKey keyServer(wxRegKey::HKCR, strKey + wxT("\\Application"));
 270                 keyServer.QueryValue(wxEmptyString, ddeServer);
 271                 wxRegKey keyTopic(wxRegKey::HKCR, strKey + wxT("\\Topic"));
 272                 keyTopic.QueryValue(wxEmptyString, ddeTopic);
 273
 274                 if (ddeTopic.empty())
 275                     ddeTopic = wxT("System");
 276
 277                 // HACK: we use a special feature of wxExecute which exists
 278                 //       just because we need it here: it will establish DDE
 279                 //       conversation with the program it just launched
 280                 command.Prepend(wxT("WX_DDE#"));
 281                 command << wxT('#') << ddeServer
 282                         << wxT('#') << ddeTopic
 283                         << wxT('#') << ddeCommand;
 284             }
 285             else
 286 #endif // wxUSE_IPC
 287             if ( !foundFilename )
 288             {
 289                 // we didn't find any '%1' - the application doesn't know which
 290                 // file to open (note that we only do it if there is no DDEExec
 291                 // subkey)
 292                 //
 293                 // HACK: append the filename at the end, hope that it will do
 294                 command << wxT(" %s");
 295             }
 296         }
 297     }
 298     //else: no such file type or no value, will return empty string
 299
 300     return command;
 301 }
 302
 303 bool
 304 wxFileTypeImpl::GetOpenCommand(wxString *openCmd,
 305                                const wxFileType::MessageParameters& params)
 306                                const
 307 {
 308     wxString cmd = GetCommand(wxT("open"));
 309
 310     *openCmd = wxFileType::ExpandCommand(cmd, params);
 311
 312     return !openCmd->empty();
 313 }
 314
 315 bool
 316 wxFileTypeImpl::GetPrintCommand(wxString *printCmd,
 317                                 const wxFileType::MessageParameters& params)
 318                                 const
 319 {
 320     wxString cmd = GetCommand(wxT("print"));
 321
 322     *printCmd = wxFileType::ExpandCommand(cmd, params);
 323
 324     return !printCmd->empty();
 325 }
 326
 327 // ----------------------------------------------------------------------------
 328 // getting other stuff
 329 // ----------------------------------------------------------------------------
 330
 331 // TODO this function is half implemented
 332 bool wxFileTypeImpl::GetExtensions(wxArrayString& extensions)
 333 {
 334     if ( m_ext.empty() ) {
 335         // the only way to get the list of extensions from the file type is to
 336         // scan through all extensions in the registry - too slow...
 337         return false;
 338     }
 339     else {
 340         extensions.Empty();
 341         extensions.Add(m_ext);
 342
 343         // it's a lie too, we don't return _all_ extensions...
 344         return true;
 345     }
 346 }
 347
 348 bool wxFileTypeImpl::GetMimeType(wxString *mimeType) const
 349 {
 350     // suppress possible error messages
 351     wxLogNull nolog;
 352     wxRegKey key(wxRegKey::HKCR, m_ext);
 353
 354     return key.Open(wxRegKey::Read) &&
 355                 key.QueryValue(wxT("Content Type"), *mimeType);
 356 }
 357
 358 bool wxFileTypeImpl::GetMimeTypes(wxArrayString& mimeTypes) const
 359 {
 360     wxString s;
 361
 362     if ( !GetMimeType(&s) )
 363     {
 364         return false;
 365     }
 366
 367     mimeTypes.Clear();
 368     mimeTypes.Add(s);
 369     return true;
 370 }
 371
 372
 373 bool wxFileTypeImpl::GetIcon(wxIconLocation *iconLoc) const
 374 {
 375     wxString strIconKey;
 376     strIconKey << m_strFileType << wxT("\\DefaultIcon");
 377
 378     // suppress possible error messages
 379     wxLogNull nolog;
 380     wxRegKey key(wxRegKey::HKCR, strIconKey);
 381
 382     if ( key.Open(wxRegKey::Read) ) {
 383         wxString strIcon;
 384         // it's the default value of the key
 385         if ( key.QueryValue(wxEmptyString, strIcon) ) {
 386             // the format is the following: <full path to file>, <icon index>
 387             // NB: icon index may be negative as well as positive and the full
 388             //     path may contain the environment variables inside '%'
 389             wxString strFullPath = strIcon.BeforeLast(wxT(',')),
 390             strIndex = strIcon.AfterLast(wxT(','));
 391
 392             // index may be omitted, in which case BeforeLast(',') is empty and
 393             // AfterLast(',') is the whole string
 394             if ( strFullPath.empty() ) {
 395                 strFullPath = strIndex;
 396                 strIndex = wxT("0");
 397             }
 398
 399             if ( iconLoc )
 400             {
 401                 iconLoc->SetFileName(wxExpandEnvVars(strFullPath));
 402
 403                 iconLoc->SetIndex(wxAtoi(strIndex));
 404             }
 405
 406             return true;
 407         }
 408     }
 409
 410     // no such file type or no value or incorrect icon entry
 411     return false;
 412 }
 413
 414 bool wxFileTypeImpl::GetDescription(wxString *desc) const
 415 {
 416     // suppress possible error messages
 417     wxLogNull nolog;
 418     wxRegKey key(wxRegKey::HKCR, m_strFileType);
 419
 420     if ( key.Open(wxRegKey::Read) ) {
 421         // it's the default value of the key
 422         if ( key.QueryValue(wxEmptyString, *desc) ) {
 423             return true;
 424         }
 425     }
 426
 427     return false;
 428 }
 429
 430 // helper function
 431 wxFileType *
 432 wxMimeTypesManagerImpl::CreateFileType(const wxString& filetype, const wxString& ext)
 433 {
 434     wxFileType *fileType = new wxFileType;
 435     fileType->m_impl->Init(filetype, ext);
 436     return fileType;
 437 }
 438
 439 // extension -> file type
 440 wxFileType *
 441 wxMimeTypesManagerImpl::GetFileTypeFromExtension(const wxString& ext)
 442 {
 443     // add the leading point if necessary
 444     wxString str;
 445     if ( ext[0u] != wxT('.') ) {
 446         str = wxT('.');
 447     }
 448     str << ext;
 449
 450     // suppress possible error messages
 451     wxLogNull nolog;
 452
 453     bool knownExtension = false;
 454
 455     wxString strFileType;
 456     wxRegKey key(wxRegKey::HKCR, str);
 457     if ( key.Open(wxRegKey::Read) ) {
 458         // it's the default value of the key
 459         if ( key.QueryValue(wxEmptyString, strFileType) ) {
 460             // create the new wxFileType object
 461             return CreateFileType(strFileType, ext);
 462         }
 463         else {
 464             // this extension doesn't have a filetype, but it's known to the
 465             // system and may be has some other useful keys (open command or
 466             // content-type), so still return a file type object for it
 467             knownExtension = true;
 468         }
 469     }
 470
 471     if ( !knownExtension )
 472     {
 473         // unknown extension
 474         return NULL;
 475     }
 476
 477     return CreateFileType(wxEmptyString, ext);
 478 }
 479
 480 /*
 481 wxFileType *
 482 wxMimeTypesManagerImpl::GetOrAllocateFileTypeFromExtension(const wxString& ext)
 483 {
 484     wxFileType *fileType = GetFileTypeFromExtension(ext);
 485     if ( !fileType )
 486     {
 487         fileType = CreateFileType(wxEmptyString, ext);
 488     }
 489
 490     return fileType;
 491 }
 492 */
 493
 494 // MIME type -> extension -> file type
 495 wxFileType *
 496 wxMimeTypesManagerImpl::GetFileTypeFromMimeType(const wxString& mimeType)
 497 {
 498     wxString strKey = MIME_DATABASE_KEY;
 499     strKey << mimeType;
 500
 501     // suppress possible error messages
 502     wxLogNull nolog;
 503
 504     wxString ext;
 505     wxRegKey key(wxRegKey::HKCR, strKey);
 506     if ( key.Open(wxRegKey::Read) ) {
 507         if ( key.QueryValue(wxT("Extension"), ext) ) {
 508             return GetFileTypeFromExtension(ext);
 509         }
 510     }
 511
 512     // unknown MIME type
 513     return NULL;
 514 }
 515
 516 size_t wxMimeTypesManagerImpl::EnumAllFileTypes(wxArrayString& mimetypes)
 517 {
 518     // enumerate all keys under MIME_DATABASE_KEY
 519     wxRegKey key(wxRegKey::HKCR, MIME_DATABASE_KEY);
 520
 521     wxString type;
 522     long cookie;
 523     bool cont = key.GetFirstKey(type, cookie);
 524     while ( cont )
 525     {
 526         mimetypes.Add(type);
 527
 528         cont = key.GetNextKey(type, cookie);
 529     }
 530
 531     return mimetypes.GetCount();
 532 }
 533
 534 // ----------------------------------------------------------------------------
 535 // create a new association
 536 // ----------------------------------------------------------------------------
 537
 538 wxFileType *wxMimeTypesManagerImpl::Associate(const wxFileTypeInfo& ftInfo)
 539 {
 540     wxCHECK_MSG( !ftInfo.GetExtensions().empty(), NULL,
 541                  wxT("Associate() needs extension") );
 542
 543     bool ok;
 544     size_t iExtCount = 0;
 545     wxString filetype;
 546     wxString extWithDot;
 547
 548     wxString ext = ftInfo.GetExtensions()[iExtCount];
 549
 550     wxCHECK_MSG( !ext.empty(), NULL,
 551                  wxT("Associate() needs non empty extension") );
 552
 553     if ( ext[0u] != wxT('.') )
 554         extWithDot = wxT('.');
 555     extWithDot += ext;
 556
 557     // start by setting the HKCR\\.ext entries
 558     // default is filetype; content type is mimetype
 559     const wxString& filetypeOrig = ftInfo.GetShortDesc();
 560
 561     wxRegKey key(wxRegKey::HKCR, extWithDot);
 562     if ( !key.Exists() )
 563     {
 564         // create the mapping from the extension to the filetype
 565         ok = key.Create();
 566         if ( ok )
 567         {
 568
 569             if ( filetypeOrig.empty() )
 570             {
 571                 // make it up from the extension
 572                 filetype << extWithDot.c_str() + 1 << wxT("_file");
 573             }
 574             else
 575             {
 576                 // just use the provided one
 577                 filetype = filetypeOrig;
 578             }
 579
 580             key.SetValue(wxEmptyString, filetype);
 581         }
 582     }
 583     else
 584     {
 585         // key already exists, maybe we want to change it ??
 586         if (!filetypeOrig.empty())
 587         {
 588             filetype = filetypeOrig;
 589             key.SetValue(wxEmptyString, filetype);
 590         }
 591         else
 592         {
 593             key.QueryValue(wxEmptyString, filetype);
 594         }
 595     }
 596
 597     // now set a mimetypeif we have it, but ignore it if none
 598     const wxString& mimetype = ftInfo.GetMimeType();
 599     if ( !mimetype.empty() )
 600     {
 601         // set the MIME type
 602         ok = key.SetValue(wxT("Content Type"), mimetype);
 603
 604         if ( ok )
 605         {
 606             // create the MIME key
 607             wxString strKey = MIME_DATABASE_KEY;
 608             strKey << mimetype;
 609             wxRegKey keyMIME(wxRegKey::HKCR, strKey);
 610             ok = keyMIME.Create();
 611
 612             if ( ok )
 613             {
 614                 // and provide a back link to the extension
 615                 keyMIME.SetValue(wxT("Extension"), extWithDot);
 616             }
 617         }
 618     }
 619
 620
 621     // now make other extensions have the same filetype
 622
 623     for (iExtCount=1; iExtCount < ftInfo.GetExtensionsCount(); iExtCount++ )
 624     {
 625         ext = ftInfo.GetExtensions()[iExtCount];
 626         if ( ext[0u] != wxT('.') )
 627            extWithDot = wxT('.');
 628         extWithDot += ext;
 629
 630         wxRegKey key(wxRegKey::HKCR, extWithDot);
 631         if ( !key.Exists() ) key.Create();
 632         key.SetValue(wxEmptyString, filetype);
 633
 634         // now set any mimetypes we may have, but ignore it if none
 635         const wxString& mimetype = ftInfo.GetMimeType();
 636         if ( !mimetype.empty() )
 637         {
 638             // set the MIME type
 639             ok = key.SetValue(wxT("Content Type"), mimetype);
 640
 641             if ( ok )
 642             {
 643                 // create the MIME key
 644                 wxString strKey = MIME_DATABASE_KEY;
 645                 strKey << mimetype;
 646                 wxRegKey keyMIME(wxRegKey::HKCR, strKey);
 647                 ok = keyMIME.Create();
 648
 649                 if ( ok )
 650                 {
 651                     // and provide a back link to the extension
 652                     keyMIME.SetValue(wxT("Extension"), extWithDot);
 653                 }
 654             }
 655         }
 656
 657     } // end of for loop; all extensions now point to HKCR\.ext\Default
 658
 659     // create the filetype key itself (it will be empty for now, but
 660     // SetCommand(), SetDefaultIcon() &c will use it later)
 661     wxRegKey keyFT(wxRegKey::HKCR, filetype);
 662     keyFT.Create();
 663
 664     wxFileType *ft = CreateFileType(filetype, extWithDot);
 665
 666     if (ft)
 667     {
 668         if (! ftInfo.GetOpenCommand ().empty() ) ft->SetCommand (ftInfo.GetOpenCommand (), wxT("open"  ) );
 669         if (! ftInfo.GetPrintCommand().empty() ) ft->SetCommand (ftInfo.GetPrintCommand(), wxT("print" ) );
 670         // chris: I don't like the ->m_impl-> here FIX this ??
 671         if (! ftInfo.GetDescription ().empty() ) ft->m_impl->SetDescription (ftInfo.GetDescription ()) ;
 672         if (! ftInfo.GetIconFile().empty() ) ft->SetDefaultIcon (ftInfo.GetIconFile(), ftInfo.GetIconIndex() );
 673
 674     }
 675
 676     return ft;
 677 }
 678
 679 bool wxFileTypeImpl::SetCommand(const wxString& cmd,
 680                                 const wxString& verb,
 681                                 bool WXUNUSED(overwriteprompt))
 682 {
 683     wxCHECK_MSG( !m_ext.empty() && !verb.empty(), false,
 684                  wxT("SetCommand() needs an extension and a verb") );
 685
 686     if ( !EnsureExtKeyExists() )
 687         return false;
 688
 689     wxRegKey rkey(wxRegKey::HKCR, GetVerbPath(verb));
 690 #if 0
 691     if ( rkey.Exists() && overwriteprompt )
 692     {
 693 #if wxUSE_GUI
 694         wxString old;
 695         rkey.QueryValue(wxEmptyString, old);
 696         if ( wxMessageBox
 697              (
 698                 wxString::Format(
 699                     _("Do you want to overwrite the command used to %s "
 700                       "files with extension \"%s\" ?\nCurrent value is \n%s, "
 701                       "\nNew value is \n%s %1"), // bug here FIX need %1 ??
 702                     verb.c_str(),
 703                     m_ext.c_str(),
 704                     old.c_str(),
 705                     cmd.c_str()),
 706                 _("Confirm registry update"),
 707                 wxYES_NO | wxICON_QUESTION
 708              ) != wxYES )
 709 #endif // wxUSE_GUI
 710         {
 711             // cancelled by user
 712             return false;
 713         }
 714     }
 715 #endif
 716     // TODO:
 717     // 1. translate '%s' to '%1' instead of always adding it
 718     // 2. create DDEExec value if needed (undo GetCommand)
 719     return rkey.Create() && rkey.SetValue(wxEmptyString, cmd + wxT(" \"%1\"") );
 720 }
 721
 722 /* // no longer used
 723 bool wxFileTypeImpl::SetMimeType(const wxString& mimeTypeOrig)
 724 {
 725     wxCHECK_MSG( !m_ext.empty(), false, wxT("SetMimeType() needs extension") );
 726
 727     if ( !EnsureExtKeyExists() )
 728         return false;
 729
 730     // VZ: is this really useful? (FIXME)
 731     wxString mimeType;
 732     if ( !mimeTypeOrig )
 733     {
 734         // make up a default value for it
 735         wxString cmd;
 736         wxFileName::SplitPath(GetCommand(wxT("open")), NULL, &cmd, NULL);
 737         mimeType << wxT("application/x-") << cmd;
 738     }
 739     else
 740     {
 741         mimeType = mimeTypeOrig;
 742     }
 743
 744     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 745     return rkey.Create() && rkey.SetValue(wxT("Content Type"), mimeType);
 746 }
 747 */
 748
 749 bool wxFileTypeImpl::SetDefaultIcon(const wxString& cmd, int index)
 750 {
 751     wxCHECK_MSG( !m_ext.empty(), false, wxT("SetDefaultIcon() needs extension") );
 752     wxCHECK_MSG( !m_strFileType.empty(), false, wxT("File key not found") );
 753 //    the next line fails on a SMBshare, I think because it is case mangled
 754 //    wxCHECK_MSG( !wxFileExists(cmd), false, wxT("Icon file not found.") );
 755
 756     if ( !EnsureExtKeyExists() )
 757         return false;
 758
 759     wxRegKey rkey(wxRegKey::HKCR, m_strFileType + wxT("\\DefaultIcon"));
 760
 761     return rkey.Create() &&
 762            rkey.SetValue(wxEmptyString,
 763                          wxString::Format(wxT("%s,%d"), cmd.c_str(), index));
 764 }
 765
 766 bool wxFileTypeImpl::SetDescription (const wxString& desc)
 767 {
 768     wxCHECK_MSG( !m_strFileType.empty(), false, wxT("File key not found") );
 769     wxCHECK_MSG( !desc.empty(), false, wxT("No file description supplied") );
 770
 771     if ( !EnsureExtKeyExists() )
 772         return false;
 773
 774     wxRegKey rkey(wxRegKey::HKCR, m_strFileType );
 775
 776     return rkey.Create() &&
 777            rkey.SetValue(wxEmptyString, desc);
 778 }
 779
 780 // ----------------------------------------------------------------------------
 781 // remove file association
 782 // ----------------------------------------------------------------------------
 783
 784 bool wxFileTypeImpl::Unassociate()
 785 {
 786     bool result = true;
 787     if ( !RemoveOpenCommand() )
 788         result = false;
 789     if ( !RemoveDefaultIcon() )
 790         result = false;
 791     if ( !RemoveMimeType() )
 792         result = false;
 793     if ( !RemoveDescription() )
 794         result = false;
 795
 796 /*
 797     //this might hold other keys, eg some have CSLID keys
 798     if ( result )
 799     {
 800         // delete the root key
 801         wxRegKey key(wxRegKey::HKCR, m_ext);
 802         if ( key.Exists() )
 803             result = key.DeleteSelf();
 804     }
 805 */
 806     return result;
 807 }
 808
 809 bool wxFileTypeImpl::RemoveOpenCommand()
 810 {
 811    return RemoveCommand(wxT("open"));
 812 }
 813
 814 bool wxFileTypeImpl::RemoveCommand(const wxString& verb)
 815 {
 816     wxCHECK_MSG( !m_ext.empty() && !verb.empty(), false,
 817                  wxT("RemoveCommand() needs an extension and a verb") );
 818
 819     wxRegKey rkey(wxRegKey::HKCR, GetVerbPath(verb));
 820
 821     // if the key already doesn't exist, it's a success
 822     return !rkey.Exists() || rkey.DeleteSelf();
 823 }
 824
 825 bool wxFileTypeImpl::RemoveMimeType()
 826 {
 827     wxCHECK_MSG( !m_ext.empty(), false, wxT("RemoveMimeType() needs extension") );
 828
 829     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 830     return !rkey.Exists() || rkey.DeleteSelf();
 831 }
 832
 833 bool wxFileTypeImpl::RemoveDefaultIcon()
 834 {
 835     wxCHECK_MSG( !m_ext.empty(), false,
 836                  wxT("RemoveDefaultIcon() needs extension") );
 837
 838     wxRegKey rkey (wxRegKey::HKCR, m_strFileType  + wxT("\\DefaultIcon"));
 839     return !rkey.Exists() || rkey.DeleteSelf();
 840 }
 841
 842 bool wxFileTypeImpl::RemoveDescription()
 843 {
 844     wxCHECK_MSG( !m_ext.empty(), false,
 845                  wxT("RemoveDescription() needs extension") );
 846
 847     wxRegKey rkey (wxRegKey::HKCR, m_strFileType );
 848     return !rkey.Exists() || rkey.DeleteSelf();
 849 }
 850
 851 #endif // wxUSE_MIMETYPE