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 WXDLLEXPORT 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(), _T("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('.') + _T("_auto_file");
 114     }
 115 }
 116
 117 wxString wxFileTypeImpl::GetVerbPath(const wxString& verb) const
 118 {
 119     wxString path;
 120     path << m_strFileType << _T("\\shell\\") << verb << _T("\\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, _T("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(_T("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  + _T("\\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(_T("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 wxString wxFileTypeImpl::GetCommand(const wxString& verb) const
 204 {
 205     // suppress possible error messages
 206     wxLogNull nolog;
 207     wxString strKey;
 208
 209     if ( wxRegKey(wxRegKey::HKCR, m_ext + _T("\\shell")).Exists() )
 210         strKey = m_ext;
 211     if ( wxRegKey(wxRegKey::HKCR, m_strFileType + _T("\\shell")).Exists() )
 212         strKey = m_strFileType;
 213
 214     if ( !strKey )
 215     {
 216         // no info
 217         return wxEmptyString;
 218     }
 219
 220     strKey << wxT("\\shell\\") << verb;
 221     wxRegKey key(wxRegKey::HKCR, strKey + _T("\\command"));
 222     wxString command;
 223     if ( key.Open(wxRegKey::Read) ) {
 224         // it's the default value of the key
 225         if ( key.QueryValue(wxEmptyString, command) ) {
 226             bool foundFilename = CanonicalizeParams(command);
 227
 228 #if wxUSE_IPC
 229             // look whether we must issue some DDE requests to the application
 230             // (and not just launch it)
 231             strKey += _T("\\DDEExec");
 232             wxRegKey keyDDE(wxRegKey::HKCR, strKey);
 233             if ( keyDDE.Open(wxRegKey::Read) ) {
 234                 wxString ddeCommand, ddeServer, ddeTopic;
 235                 keyDDE.QueryValue(wxEmptyString, ddeCommand);
 236                 ddeCommand.Replace(_T("%1"), _T("%s"));
 237
 238                 wxRegKey keyServer(wxRegKey::HKCR, strKey + _T("\\Application"));
 239                 keyServer.QueryValue(wxEmptyString, ddeServer);
 240                 wxRegKey keyTopic(wxRegKey::HKCR, strKey + _T("\\Topic"));
 241                 keyTopic.QueryValue(wxEmptyString, ddeTopic);
 242
 243                 if (ddeTopic.empty())
 244                     ddeTopic = wxT("System");
 245
 246                 // HACK: we use a special feature of wxExecute which exists
 247                 //       just because we need it here: it will establish DDE
 248                 //       conversation with the program it just launched
 249                 command.Prepend(_T("WX_DDE#"));
 250                 command << _T('#') << ddeServer
 251                         << _T('#') << ddeTopic
 252                         << _T('#') << ddeCommand;
 253             }
 254             else
 255 #endif // wxUSE_IPC
 256             if ( !foundFilename )
 257             {
 258                 // we didn't find any '%1' - the application doesn't know which
 259                 // file to open (note that we only do it if there is no DDEExec
 260                 // subkey)
 261                 //
 262                 // HACK: append the filename at the end, hope that it will do
 263                 command << wxT(" %s");
 264             }
 265         }
 266     }
 267     //else: no such file type or no value, will return empty string
 268
 269     return command;
 270 }
 271
 272 bool
 273 wxFileTypeImpl::GetOpenCommand(wxString *openCmd,
 274                                const wxFileType::MessageParameters& params)
 275                                const
 276 {
 277     wxString cmd = GetCommand(wxT("open"));
 278
 279     *openCmd = wxFileType::ExpandCommand(cmd, params);
 280
 281     return !openCmd->empty();
 282 }
 283
 284 bool
 285 wxFileTypeImpl::GetPrintCommand(wxString *printCmd,
 286                                 const wxFileType::MessageParameters& params)
 287                                 const
 288 {
 289     wxString cmd = GetCommand(wxT("print"));
 290
 291     *printCmd = wxFileType::ExpandCommand(cmd, params);
 292
 293     return !printCmd->empty();
 294 }
 295
 296 // ----------------------------------------------------------------------------
 297 // getting other stuff
 298 // ----------------------------------------------------------------------------
 299
 300 // TODO this function is half implemented
 301 bool wxFileTypeImpl::GetExtensions(wxArrayString& extensions)
 302 {
 303     if ( m_ext.empty() ) {
 304         // the only way to get the list of extensions from the file type is to
 305         // scan through all extensions in the registry - too slow...
 306         return false;
 307     }
 308     else {
 309         extensions.Empty();
 310         extensions.Add(m_ext);
 311
 312         // it's a lie too, we don't return _all_ extensions...
 313         return true;
 314     }
 315 }
 316
 317 bool wxFileTypeImpl::GetMimeType(wxString *mimeType) const
 318 {
 319     // suppress possible error messages
 320     wxLogNull nolog;
 321     wxRegKey key(wxRegKey::HKCR, m_ext);
 322
 323     return key.Open(wxRegKey::Read) &&
 324                 key.QueryValue(wxT("Content Type"), *mimeType);
 325 }
 326
 327 bool wxFileTypeImpl::GetMimeTypes(wxArrayString& mimeTypes) const
 328 {
 329     wxString s;
 330
 331     if ( !GetMimeType(&s) )
 332     {
 333         return false;
 334     }
 335
 336     mimeTypes.Clear();
 337     mimeTypes.Add(s);
 338     return true;
 339 }
 340
 341
 342 bool wxFileTypeImpl::GetIcon(wxIconLocation *iconLoc) const
 343 {
 344     wxString strIconKey;
 345     strIconKey << m_strFileType << wxT("\\DefaultIcon");
 346
 347     // suppress possible error messages
 348     wxLogNull nolog;
 349     wxRegKey key(wxRegKey::HKCR, strIconKey);
 350
 351     if ( key.Open(wxRegKey::Read) ) {
 352         wxString strIcon;
 353         // it's the default value of the key
 354         if ( key.QueryValue(wxEmptyString, strIcon) ) {
 355             // the format is the following: <full path to file>, <icon index>
 356             // NB: icon index may be negative as well as positive and the full
 357             //     path may contain the environment variables inside '%'
 358             wxString strFullPath = strIcon.BeforeLast(wxT(',')),
 359             strIndex = strIcon.AfterLast(wxT(','));
 360
 361             // index may be omitted, in which case BeforeLast(',') is empty and
 362             // AfterLast(',') is the whole string
 363             if ( strFullPath.empty() ) {
 364                 strFullPath = strIndex;
 365                 strIndex = wxT("0");
 366             }
 367
 368             if ( iconLoc )
 369             {
 370                 iconLoc->SetFileName(wxExpandEnvVars(strFullPath));
 371
 372                 iconLoc->SetIndex(wxAtoi(strIndex));
 373             }
 374
 375             return true;
 376         }
 377     }
 378
 379     // no such file type or no value or incorrect icon entry
 380     return false;
 381 }
 382
 383 bool wxFileTypeImpl::GetDescription(wxString *desc) const
 384 {
 385     // suppress possible error messages
 386     wxLogNull nolog;
 387     wxRegKey key(wxRegKey::HKCR, m_strFileType);
 388
 389     if ( key.Open(wxRegKey::Read) ) {
 390         // it's the default value of the key
 391         if ( key.QueryValue(wxEmptyString, *desc) ) {
 392             return true;
 393         }
 394     }
 395
 396     return false;
 397 }
 398
 399 // helper function
 400 wxFileType *
 401 wxMimeTypesManagerImpl::CreateFileType(const wxString& filetype, const wxString& ext)
 402 {
 403     wxFileType *fileType = new wxFileType;
 404     fileType->m_impl->Init(filetype, ext);
 405     return fileType;
 406 }
 407
 408 // extension -> file type
 409 wxFileType *
 410 wxMimeTypesManagerImpl::GetFileTypeFromExtension(const wxString& ext)
 411 {
 412     // add the leading point if necessary
 413     wxString str;
 414     if ( ext[0u] != wxT('.') ) {
 415         str = wxT('.');
 416     }
 417     str << ext;
 418
 419     // suppress possible error messages
 420     wxLogNull nolog;
 421
 422     bool knownExtension = false;
 423
 424     wxString strFileType;
 425     wxRegKey key(wxRegKey::HKCR, str);
 426     if ( key.Open(wxRegKey::Read) ) {
 427         // it's the default value of the key
 428         if ( key.QueryValue(wxEmptyString, strFileType) ) {
 429             // create the new wxFileType object
 430             return CreateFileType(strFileType, ext);
 431         }
 432         else {
 433             // this extension doesn't have a filetype, but it's known to the
 434             // system and may be has some other useful keys (open command or
 435             // content-type), so still return a file type object for it
 436             knownExtension = true;
 437         }
 438     }
 439
 440     if ( !knownExtension )
 441     {
 442         // unknown extension
 443         return NULL;
 444     }
 445
 446     return CreateFileType(wxEmptyString, ext);
 447 }
 448
 449 /*
 450 wxFileType *
 451 wxMimeTypesManagerImpl::GetOrAllocateFileTypeFromExtension(const wxString& ext)
 452 {
 453     wxFileType *fileType = GetFileTypeFromExtension(ext);
 454     if ( !fileType )
 455     {
 456         fileType = CreateFileType(wxEmptyString, ext);
 457     }
 458
 459     return fileType;
 460 }
 461 */
 462
 463 // MIME type -> extension -> file type
 464 wxFileType *
 465 wxMimeTypesManagerImpl::GetFileTypeFromMimeType(const wxString& mimeType)
 466 {
 467     wxString strKey = MIME_DATABASE_KEY;
 468     strKey << mimeType;
 469
 470     // suppress possible error messages
 471     wxLogNull nolog;
 472
 473     wxString ext;
 474     wxRegKey key(wxRegKey::HKCR, strKey);
 475     if ( key.Open(wxRegKey::Read) ) {
 476         if ( key.QueryValue(wxT("Extension"), ext) ) {
 477             return GetFileTypeFromExtension(ext);
 478         }
 479     }
 480
 481     // unknown MIME type
 482     return NULL;
 483 }
 484
 485 size_t wxMimeTypesManagerImpl::EnumAllFileTypes(wxArrayString& mimetypes)
 486 {
 487     // enumerate all keys under MIME_DATABASE_KEY
 488     wxRegKey key(wxRegKey::HKCR, MIME_DATABASE_KEY);
 489
 490     wxString type;
 491     long cookie;
 492     bool cont = key.GetFirstKey(type, cookie);
 493     while ( cont )
 494     {
 495         mimetypes.Add(type);
 496
 497         cont = key.GetNextKey(type, cookie);
 498     }
 499
 500     return mimetypes.GetCount();
 501 }
 502
 503 // ----------------------------------------------------------------------------
 504 // create a new association
 505 // ----------------------------------------------------------------------------
 506
 507 wxFileType *wxMimeTypesManagerImpl::Associate(const wxFileTypeInfo& ftInfo)
 508 {
 509     wxCHECK_MSG( !ftInfo.GetExtensions().empty(), NULL,
 510                  _T("Associate() needs extension") );
 511
 512     bool ok;
 513     size_t iExtCount = 0;
 514     wxString filetype;
 515     wxString extWithDot;
 516
 517     wxString ext = ftInfo.GetExtensions()[iExtCount];
 518
 519     wxCHECK_MSG( !ext.empty(), NULL,
 520                  _T("Associate() needs non empty extension") );
 521
 522     if ( ext[0u] != _T('.') )
 523         extWithDot = _T('.');
 524     extWithDot += ext;
 525
 526     // start by setting the HKCR\\.ext entries
 527     // default is filetype; content type is mimetype
 528     const wxString& filetypeOrig = ftInfo.GetShortDesc();
 529
 530     wxRegKey key(wxRegKey::HKCR, extWithDot);
 531     if ( !key.Exists() )
 532     {
 533         // create the mapping from the extension to the filetype
 534         ok = key.Create();
 535         if ( ok )
 536         {
 537
 538             if ( filetypeOrig.empty() )
 539             {
 540                 // make it up from the extension
 541                 filetype << extWithDot.c_str() + 1 << _T("_file");
 542             }
 543             else
 544             {
 545                 // just use the provided one
 546                 filetype = filetypeOrig;
 547             }
 548
 549             key.SetValue(wxEmptyString, filetype);
 550         }
 551     }
 552     else
 553     {
 554         // key already exists, maybe we want to change it ??
 555         if (!filetypeOrig.empty())
 556         {
 557             filetype = filetypeOrig;
 558             key.SetValue(wxEmptyString, filetype);
 559         }
 560         else
 561         {
 562             key.QueryValue(wxEmptyString, filetype);
 563         }
 564     }
 565
 566     // now set a mimetypeif we have it, but ignore it if none
 567     const wxString& mimetype = ftInfo.GetMimeType();
 568     if ( !mimetype.empty() )
 569     {
 570         // set the MIME type
 571         ok = key.SetValue(_T("Content Type"), mimetype);
 572
 573         if ( ok )
 574         {
 575             // create the MIME key
 576             wxString strKey = MIME_DATABASE_KEY;
 577             strKey << mimetype;
 578             wxRegKey keyMIME(wxRegKey::HKCR, strKey);
 579             ok = keyMIME.Create();
 580
 581             if ( ok )
 582             {
 583                 // and provide a back link to the extension
 584                 keyMIME.SetValue(_T("Extension"), extWithDot);
 585             }
 586         }
 587     }
 588
 589
 590     // now make other extensions have the same filetype
 591
 592     for (iExtCount=1; iExtCount < ftInfo.GetExtensionsCount(); iExtCount++ )
 593     {
 594         ext = ftInfo.GetExtensions()[iExtCount];
 595         if ( ext[0u] != _T('.') )
 596            extWithDot = _T('.');
 597         extWithDot += ext;
 598
 599         wxRegKey key(wxRegKey::HKCR, extWithDot);
 600         if ( !key.Exists() ) key.Create();
 601         key.SetValue(wxEmptyString, filetype);
 602
 603         // now set any mimetypes we may have, but ignore it if none
 604         const wxString& mimetype = ftInfo.GetMimeType();
 605         if ( !mimetype.empty() )
 606         {
 607             // set the MIME type
 608             ok = key.SetValue(_T("Content Type"), mimetype);
 609
 610             if ( ok )
 611             {
 612                 // create the MIME key
 613                 wxString strKey = MIME_DATABASE_KEY;
 614                 strKey << mimetype;
 615                 wxRegKey keyMIME(wxRegKey::HKCR, strKey);
 616                 ok = keyMIME.Create();
 617
 618                 if ( ok )
 619                 {
 620                     // and provide a back link to the extension
 621                     keyMIME.SetValue(_T("Extension"), extWithDot);
 622                 }
 623             }
 624         }
 625
 626     } // end of for loop; all extensions now point to HKCR\.ext\Default
 627
 628     // create the filetype key itself (it will be empty for now, but
 629     // SetCommand(), SetDefaultIcon() &c will use it later)
 630     wxRegKey keyFT(wxRegKey::HKCR, filetype);
 631     keyFT.Create();
 632
 633     wxFileType *ft = CreateFileType(filetype, extWithDot);
 634
 635     if (ft)
 636     {
 637         if (! ftInfo.GetOpenCommand ().empty() ) ft->SetCommand (ftInfo.GetOpenCommand (), wxT("open"  ) );
 638         if (! ftInfo.GetPrintCommand().empty() ) ft->SetCommand (ftInfo.GetPrintCommand(), wxT("print" ) );
 639         // chris: I don't like the ->m_impl-> here FIX this ??
 640         if (! ftInfo.GetDescription ().empty() ) ft->m_impl->SetDescription (ftInfo.GetDescription ()) ;
 641         if (! ftInfo.GetIconFile().empty() ) ft->SetDefaultIcon (ftInfo.GetIconFile(), ftInfo.GetIconIndex() );
 642
 643     }
 644
 645     return ft;
 646 }
 647
 648 bool wxFileTypeImpl::SetCommand(const wxString& cmd,
 649                                 const wxString& verb,
 650                                 bool WXUNUSED(overwriteprompt))
 651 {
 652     wxCHECK_MSG( !m_ext.empty() && !verb.empty(), false,
 653                  _T("SetCommand() needs an extension and a verb") );
 654
 655     if ( !EnsureExtKeyExists() )
 656         return false;
 657
 658     wxRegKey rkey(wxRegKey::HKCR, GetVerbPath(verb));
 659 #if 0
 660     if ( rkey.Exists() && overwriteprompt )
 661     {
 662 #if wxUSE_GUI
 663         wxString old;
 664         rkey.QueryValue(wxEmptyString, old);
 665         if ( wxMessageBox
 666              (
 667                 wxString::Format(
 668                     _("Do you want to overwrite the command used to %s "
 669                       "files with extension \"%s\" ?\nCurrent value is \n%s, "
 670                       "\nNew value is \n%s %1"), // bug here FIX need %1 ??
 671                     verb.c_str(),
 672                     m_ext.c_str(),
 673                     old.c_str(),
 674                     cmd.c_str()),
 675                 _("Confirm registry update"),
 676                 wxYES_NO | wxICON_QUESTION
 677              ) != wxYES )
 678 #endif // wxUSE_GUI
 679         {
 680             // cancelled by user
 681             return false;
 682         }
 683     }
 684 #endif
 685     // TODO:
 686     // 1. translate '%s' to '%1' instead of always adding it
 687     // 2. create DDEExec value if needed (undo GetCommand)
 688     return rkey.Create() && rkey.SetValue(wxEmptyString, cmd + _T(" \"%1\"") );
 689 }
 690
 691 /* // no longer used
 692 bool wxFileTypeImpl::SetMimeType(const wxString& mimeTypeOrig)
 693 {
 694     wxCHECK_MSG( !m_ext.empty(), false, _T("SetMimeType() needs extension") );
 695
 696     if ( !EnsureExtKeyExists() )
 697         return false;
 698
 699     // VZ: is this really useful? (FIXME)
 700     wxString mimeType;
 701     if ( !mimeTypeOrig )
 702     {
 703         // make up a default value for it
 704         wxString cmd;
 705         wxSplitPath(GetCommand(_T("open")), NULL, &cmd, NULL);
 706         mimeType << _T("application/x-") << cmd;
 707     }
 708     else
 709     {
 710         mimeType = mimeTypeOrig;
 711     }
 712
 713     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 714     return rkey.Create() && rkey.SetValue(_T("Content Type"), mimeType);
 715 }
 716 */
 717
 718 bool wxFileTypeImpl::SetDefaultIcon(const wxString& cmd, int index)
 719 {
 720     wxCHECK_MSG( !m_ext.empty(), false, _T("SetDefaultIcon() needs extension") );
 721     wxCHECK_MSG( !m_strFileType.empty(), false, _T("File key not found") );
 722 //    the next line fails on a SMBshare, I think because it is case mangled
 723 //    wxCHECK_MSG( !wxFileExists(cmd), false, _T("Icon file not found.") );
 724
 725     if ( !EnsureExtKeyExists() )
 726         return false;
 727
 728     wxRegKey rkey(wxRegKey::HKCR, m_strFileType + _T("\\DefaultIcon"));
 729
 730     return rkey.Create() &&
 731            rkey.SetValue(wxEmptyString,
 732                          wxString::Format(_T("%s,%d"), cmd.c_str(), index));
 733 }
 734
 735 bool wxFileTypeImpl::SetDescription (const wxString& desc)
 736 {
 737     wxCHECK_MSG( !m_strFileType.empty(), false, _T("File key not found") );
 738     wxCHECK_MSG( !desc.empty(), false, _T("No file description supplied") );
 739
 740     if ( !EnsureExtKeyExists() )
 741         return false;
 742
 743     wxRegKey rkey(wxRegKey::HKCR, m_strFileType );
 744
 745     return rkey.Create() &&
 746            rkey.SetValue(wxEmptyString, desc);
 747 }
 748
 749 // ----------------------------------------------------------------------------
 750 // remove file association
 751 // ----------------------------------------------------------------------------
 752
 753 bool wxFileTypeImpl::Unassociate()
 754 {
 755     bool result = true;
 756     if ( !RemoveOpenCommand() )
 757         result = false;
 758     if ( !RemoveDefaultIcon() )
 759         result = false;
 760     if ( !RemoveMimeType() )
 761         result = false;
 762     if ( !RemoveDescription() )
 763         result = false;
 764
 765 /*
 766     //this might hold other keys, eg some have CSLID keys
 767     if ( result )
 768     {
 769         // delete the root key
 770         wxRegKey key(wxRegKey::HKCR, m_ext);
 771         if ( key.Exists() )
 772             result = key.DeleteSelf();
 773     }
 774 */
 775     return result;
 776 }
 777
 778 bool wxFileTypeImpl::RemoveOpenCommand()
 779 {
 780    return RemoveCommand(_T("open"));
 781 }
 782
 783 bool wxFileTypeImpl::RemoveCommand(const wxString& verb)
 784 {
 785     wxCHECK_MSG( !m_ext.empty() && !verb.empty(), false,
 786                  _T("RemoveCommand() needs an extension and a verb") );
 787
 788     wxRegKey rkey(wxRegKey::HKCR, GetVerbPath(verb));
 789
 790     // if the key already doesn't exist, it's a success
 791     return !rkey.Exists() || rkey.DeleteSelf();
 792 }
 793
 794 bool wxFileTypeImpl::RemoveMimeType()
 795 {
 796     wxCHECK_MSG( !m_ext.empty(), false, _T("RemoveMimeType() needs extension") );
 797
 798     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 799     return !rkey.Exists() || rkey.DeleteSelf();
 800 }
 801
 802 bool wxFileTypeImpl::RemoveDefaultIcon()
 803 {
 804     wxCHECK_MSG( !m_ext.empty(), false,
 805                  _T("RemoveDefaultIcon() needs extension") );
 806
 807     wxRegKey rkey (wxRegKey::HKCR, m_strFileType  + _T("\\DefaultIcon"));
 808     return !rkey.Exists() || rkey.DeleteSelf();
 809 }
 810
 811 bool wxFileTypeImpl::RemoveDescription()
 812 {
 813     wxCHECK_MSG( !m_ext.empty(), false,
 814                  _T("RemoveDescription() needs extension") );
 815
 816     wxRegKey rkey (wxRegKey::HKCR, m_strFileType );
 817     return !rkey.Exists() || rkey.DeleteSelf();
 818 }
 819
 820 #endif // wxUSE_MIMETYPE