src/unix/mimetype.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/unix/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 && wxUSE_FILE
  20
  21 #include "wx/unix/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/utils.h"
  29 #endif
  30
  31 #include "wx/file.h"
  32 #include "wx/confbase.h"
  33
  34 #include "wx/ffile.h"
  35 #include "wx/dir.h"
  36 #include "wx/tokenzr.h"
  37 #include "wx/iconloc.h"
  38 #include "wx/filename.h"
  39 #include "wx/app.h"
  40 #include "wx/apptrait.h"
  41
  42 // other standard headers
  43 #include <ctype.h>
  44
  45 class wxMimeTextFile
  46 {
  47 public:
  48     wxMimeTextFile()
  49     {
  50     }
  51
  52     wxMimeTextFile(const wxString& fname)
  53     {
  54        m_fname = fname;
  55     }
  56
  57     bool Open()
  58     {
  59        wxFFile file( m_fname );
  60        if (!file.IsOpened())
  61           return false;
  62
  63        size_t size = file.Length();
  64        wxCharBuffer buffer( size );
  65        file.Read( (void*) (const char*) buffer, size );
  66
  67        // Check for valid UTF-8 here?
  68        wxString all = wxString::FromUTF8( buffer, size );
  69
  70        wxStringTokenizer tok( all, "\n" );
  71        while (tok.HasMoreTokens())
  72        {
  73           wxString t = tok.GetNextToken();
  74           t.MakeLower();
  75           if ((!!t) && (t.Find( "comment" ) != 0) && (t.Find( "#" ) != 0) && (t.Find( "generic" ) != 0))
  76              m_text.Add( t );
  77        }
  78        return true;
  79     }
  80
  81     unsigned int GetLineCount() const { return m_text.GetCount(); }
  82     wxString &GetLine( unsigned int line ) { return m_text[line]; }
  83
  84     int pIndexOf(const wxString& sSearch,
  85                  bool bIncludeComments = false,
  86                  int iStart = 0)
  87     {
  88         wxString sTest = sSearch;
  89         sTest.MakeLower();
  90         for(size_t i = iStart; i < GetLineCount(); i++)
  91         {
  92             wxString sLine = GetLine(i);
  93             if(bIncludeComments || ! sLine.StartsWith(wxT("#")))
  94             {
  95                 if(sLine.StartsWith(sTest))
  96                     return (int)i;
  97             }
  98         }
  99         return wxNOT_FOUND;
 100     }
 101
 102     wxString GetVerb(size_t i)
 103     {
 104         if (i > GetLineCount() )
 105             return wxEmptyString;
 106
 107         wxString sTmp = GetLine(i).BeforeFirst(wxT('='));
 108         return sTmp;
 109     }
 110
 111     wxString GetCmd(size_t i)
 112     {
 113         if (i > GetLineCount() )
 114             return wxEmptyString;
 115
 116         wxString sTmp = GetLine(i).AfterFirst(wxT('='));
 117         return sTmp;
 118     }
 119
 120 private:
 121     wxArrayString m_text;
 122     wxString m_fname;
 123 };
 124
 125 // ----------------------------------------------------------------------------
 126 // constants
 127 // ----------------------------------------------------------------------------
 128
 129 // MIME code tracing mask
 130 #define TRACE_MIME wxT("mime")
 131
 132
 133 // Read a XDG *.desktop file of type 'Application'
 134 void wxMimeTypesManagerImpl::LoadXDGApp(const wxString& filename)
 135 {
 136     wxLogTrace(TRACE_MIME, wxT("loading XDG file %s"), filename.c_str());
 137
 138     wxMimeTextFile file(filename);
 139     if ( !file.Open() )
 140         return;
 141
 142     // Here, only type 'Application' should be considered.
 143     int nIndex = file.pIndexOf( "Type=" );
 144     if (nIndex != wxNOT_FOUND && file.GetCmd(nIndex) != "application")
 145         return;
 146
 147     // The hidden entry specifies a file to be ignored.
 148     nIndex = file.pIndexOf( "Hidden=" );
 149     if (nIndex != wxNOT_FOUND && file.GetCmd(nIndex) == "true")
 150         return;
 151
 152     // Semicolon separated list of mime types handled by the application.
 153     nIndex = file.pIndexOf( wxT("MimeType=") );
 154     if (nIndex == wxNOT_FOUND)
 155         return;
 156     wxString mimetypes = file.GetCmd (nIndex);
 157
 158     // Name of the application
 159     wxString nameapp;
 160     nIndex = wxNOT_FOUND;
 161 #if wxUSE_INTL // try "Name[locale name]" first
 162     wxLocale *locale = wxGetLocale();
 163     if ( locale )
 164         nIndex = file.pIndexOf(_T("Name[")+locale->GetName()+_T("]="));
 165 #endif // wxUSE_INTL
 166     if(nIndex == wxNOT_FOUND)
 167         nIndex = file.pIndexOf( wxT("Name=") );
 168     if(nIndex != wxNOT_FOUND)
 169         nameapp = file.GetCmd(nIndex);
 170
 171     // Icon of the application.
 172     wxString nameicon, namemini;
 173     nIndex = wxNOT_FOUND;
 174 #if wxUSE_INTL // try "Icon[locale name]" first
 175     if ( locale )
 176         nIndex = file.pIndexOf(_T("Icon[")+locale->GetName()+_T("]="));
 177 #endif // wxUSE_INTL
 178     if(nIndex == wxNOT_FOUND)
 179         nIndex = file.pIndexOf( wxT("Icon=") );
 180     if(nIndex != wxNOT_FOUND) {
 181         nameicon = wxString(wxT("--icon ")) + file.GetCmd(nIndex);
 182         namemini = wxString(wxT("--miniicon ")) + file.GetCmd(nIndex);
 183     }
 184
 185     // Replace some of the field code in the 'Exec' entry.
 186     // TODO: deal with %d, %D, %n, %N, %k and %v (but last one is deprecated)
 187     nIndex = file.pIndexOf( wxT("Exec=") );
 188     if (nIndex == wxNOT_FOUND)
 189         return;
 190     wxString sCmd = file.GetCmd(nIndex);
 191     // we expect %f; others including  %F and %U and %u are possible
 192     sCmd.Replace(wxT("%F"), wxT("%f"));
 193     sCmd.Replace(wxT("%U"), wxT("%f"));
 194     sCmd.Replace(wxT("%u"), wxT("%f"));
 195     if (0 == sCmd.Replace ( wxT("%f"), wxT("%s") ))
 196         sCmd = sCmd + wxT(" %s");
 197     sCmd.Replace(wxT("%c"), nameapp);
 198     sCmd.Replace(wxT("%i"), nameicon);
 199     sCmd.Replace(wxT("%m"), namemini);
 200
 201     wxStringTokenizer tokenizer(mimetypes, _T(";"));
 202     while(tokenizer.HasMoreTokens()) {
 203         wxString mimetype = tokenizer.GetNextToken().Lower();
 204         nIndex = m_aTypes.Index(mimetype);
 205         if(nIndex != wxNOT_FOUND) { // is this a known MIME type?
 206             wxMimeTypeCommands* entry = m_aEntries[nIndex];
 207             entry->AddOrReplaceVerb(wxT("open"), sCmd);
 208         }
 209     }
 210 }
 211
 212 void wxMimeTypesManagerImpl::LoadXDGAppsFilesFromDir(const wxString& dirname)
 213 {
 214     // Don't complain if we don't have permissions to read - it confuses users
 215     wxLogNull logNull;
 216
 217     if(! wxDir::Exists(dirname))
 218         return;
 219     wxDir dir(dirname);
 220     if ( !dir.IsOpened() )
 221         return;
 222
 223     wxString filename;
 224     // Look into .desktop files
 225     bool cont = dir.GetFirst(&filename, _T("*.desktop"), wxDIR_FILES);
 226     while (cont)
 227     {
 228         wxFileName p(dirname, filename);
 229         LoadXDGApp( p.GetFullPath() );
 230         cont = dir.GetNext(&filename);
 231     }
 232
 233 #if 0
 234     // RR: I'm not sure this makes any sense. On my system we'll just
 235     //     scan the YAST2 and other useless directories
 236
 237     // Look recursively into subdirs
 238     cont = dir.GetFirst(&filename, wxEmptyString, wxDIR_DIRS);
 239     while (cont)
 240     {
 241         wxFileName p(dirname, wxEmptyString);
 242         p.AppendDir(filename);
 243         LoadXDGAppsFilesFromDir( p.GetPath() );
 244         cont = dir.GetNext(&filename);
 245     }
 246 #endif
 247 }
 248
 249
 250 void wxMimeTypesManagerImpl::LoadXDGGlobs(const wxString& filename)
 251 {
 252     wxLogTrace(TRACE_MIME, wxT("loading XDG globs file from %s"), filename.c_str());
 253
 254     wxMimeTextFile file(filename);
 255     if ( !file.Open() )
 256         return;
 257
 258     size_t i;
 259     for (i = 0; i < file.GetLineCount(); i++)
 260     {
 261        wxStringTokenizer tok( file.GetLine(i), ":" );
 262        wxString mime = tok.GetNextToken();
 263        wxString ext = tok.GetNextToken();
 264        ext.Remove( 0, 2 );
 265        wxArrayString exts;
 266        exts.Add( ext );
 267
 268        AddToMimeData(mime, wxEmptyString, NULL, exts, wxEmptyString, false );
 269     }
 270 }
 271
 272 // ----------------------------------------------------------------------------
 273 // wxFileTypeImpl (Unix)
 274 // ----------------------------------------------------------------------------
 275
 276 wxString wxFileTypeImpl::GetExpandedCommand(const wxString & verb, const wxFileType::MessageParameters& params) const
 277 {
 278     wxString sTmp;
 279     size_t i = 0;
 280     while ( (i < m_index.GetCount() ) && sTmp.empty() )
 281     {
 282         sTmp = m_manager->GetCommand( verb, m_index[i] );
 283         i++;
 284     }
 285
 286     return wxFileType::ExpandCommand(sTmp, params);
 287 }
 288
 289 bool wxFileTypeImpl::GetIcon(wxIconLocation *iconLoc) const
 290 {
 291     wxString sTmp;
 292     size_t i = 0;
 293     while ( (i < m_index.GetCount() ) && sTmp.empty() )
 294     {
 295         sTmp = m_manager->m_aIcons[m_index[i]];
 296         i++;
 297     }
 298
 299     if ( sTmp.empty() )
 300         return false;
 301
 302     if ( iconLoc )
 303     {
 304         iconLoc->SetFileName(sTmp);
 305     }
 306
 307     return true;
 308 }
 309
 310 bool wxFileTypeImpl::GetMimeTypes(wxArrayString& mimeTypes) const
 311 {
 312     mimeTypes.Clear();
 313     size_t nCount = m_index.GetCount();
 314     for (size_t i = 0; i < nCount; i++)
 315         mimeTypes.Add(m_manager->m_aTypes[m_index[i]]);
 316
 317     return true;
 318 }
 319
 320 size_t wxFileTypeImpl::GetAllCommands(wxArrayString *verbs,
 321                                   wxArrayString *commands,
 322                                   const wxFileType::MessageParameters& params) const
 323 {
 324     wxString vrb, cmd, sTmp;
 325     size_t count = 0;
 326     wxMimeTypeCommands * sPairs;
 327
 328     // verbs and commands have been cleared already in mimecmn.cpp...
 329     // if we find no entries in the exact match, try the inexact match
 330     for (size_t n = 0; ((count == 0) && (n < m_index.GetCount())); n++)
 331     {
 332         // list of verb = command pairs for this mimetype
 333         sPairs = m_manager->m_aEntries [m_index[n]];
 334         size_t i;
 335         for ( i = 0; i < sPairs->GetCount(); i++ )
 336         {
 337             vrb = sPairs->GetVerb(i);
 338             // some gnome entries have "." inside
 339             vrb = vrb.AfterLast(wxT('.'));
 340             cmd = sPairs->GetCmd(i);
 341             if (! cmd.empty() )
 342             {
 343                  cmd = wxFileType::ExpandCommand(cmd, params);
 344                  count++;
 345                  if ( vrb.IsSameAs(wxT("open")))
 346                  {
 347                      if ( verbs )
 348                         verbs->Insert(vrb, 0u);
 349                      if ( commands )
 350                         commands ->Insert(cmd, 0u);
 351                  }
 352                  else
 353                  {
 354                      if ( verbs )
 355                         verbs->Add(vrb);
 356                      if ( commands )
 357                         commands->Add(cmd);
 358                  }
 359              }
 360         }
 361     }
 362
 363     return count;
 364 }
 365
 366 bool wxFileTypeImpl::GetExtensions(wxArrayString& extensions)
 367 {
 368     const wxString strExtensions = m_manager->GetExtension(m_index[0]);
 369     extensions.Empty();
 370
 371     // one extension in the space or comma-delimited list
 372     wxString strExt;
 373     wxString::const_iterator end = strExtensions.end();
 374     for ( wxString::const_iterator p = strExtensions.begin(); /* nothing */; ++p )
 375     {
 376         if ( p == end || *p == wxT(' ') || *p == wxT(',') )
 377         {
 378             if ( !strExt.empty() )
 379             {
 380                 extensions.Add(strExt);
 381                 strExt.Empty();
 382             }
 383             //else: repeated spaces
 384             // (shouldn't happen, but it's not that important if it does happen)
 385
 386             if ( p == end )
 387                 break;
 388         }
 389         else if ( *p == wxT('.') )
 390         {
 391             // remove the dot from extension (but only if it's the first char)
 392             if ( !strExt.empty() )
 393             {
 394                 strExt += wxT('.');
 395             }
 396             //else: no, don't append it
 397         }
 398         else
 399         {
 400             strExt += *p;
 401         }
 402     }
 403
 404     return true;
 405 }
 406
 407 // set an arbitrary command:
 408 // could adjust the code to ask confirmation if it already exists and
 409 // overwriteprompt is true, but this is currently ignored as *Associate* has
 410 // no overwrite prompt
 411 bool
 412 wxFileTypeImpl::SetCommand(const wxString& cmd,
 413                            const wxString& verb,
 414                            bool WXUNUSED(overwriteprompt))
 415 {
 416     wxArrayString strExtensions;
 417     wxString strDesc, strIcon;
 418
 419     wxArrayString strTypes;
 420     GetMimeTypes(strTypes);
 421     if ( strTypes.IsEmpty() )
 422         return false;
 423
 424     wxMimeTypeCommands *entry = new wxMimeTypeCommands();
 425     entry->Add(verb + wxT("=")  + cmd + wxT(" %s "));
 426
 427     bool ok = false;
 428     size_t nCount = strTypes.GetCount();
 429     for ( size_t i = 0; i < nCount; i++ )
 430     {
 431         if ( m_manager->DoAssociation
 432                         (
 433                             strTypes[i],
 434                             strIcon,
 435                             entry,
 436                             strExtensions,
 437                             strDesc
 438                         ) )
 439         {
 440             // DoAssociation() took ownership of entry, don't delete it below
 441             ok = true;
 442         }
 443     }
 444
 445     if ( !ok )
 446         delete entry;
 447
 448     return ok;
 449 }
 450
 451 // ignore index on the grounds that we only have one icon in a Unix file
 452 bool wxFileTypeImpl::SetDefaultIcon(const wxString& strIcon, int WXUNUSED(index))
 453 {
 454     if (strIcon.empty())
 455         return false;
 456
 457     wxArrayString strExtensions;
 458     wxString strDesc;
 459
 460     wxArrayString strTypes;
 461     GetMimeTypes(strTypes);
 462     if ( strTypes.IsEmpty() )
 463         return false;
 464
 465     wxMimeTypeCommands *entry = new wxMimeTypeCommands();
 466     bool ok = false;
 467     size_t nCount = strTypes.GetCount();
 468     for ( size_t i = 0; i < nCount; i++ )
 469     {
 470         if ( m_manager->DoAssociation
 471                         (
 472                             strTypes[i],
 473                             strIcon,
 474                             entry,
 475                             strExtensions,
 476                             strDesc
 477                         ) )
 478         {
 479             // we don't need to free entry now, DoAssociation() took ownership
 480             // of it
 481             ok = true;
 482         }
 483     }
 484
 485     if ( !ok )
 486         delete entry;
 487
 488     return ok;
 489 }
 490
 491 // ----------------------------------------------------------------------------
 492 // wxMimeTypesManagerImpl (Unix)
 493 // ----------------------------------------------------------------------------
 494
 495 wxMimeTypesManagerImpl::wxMimeTypesManagerImpl()
 496 {
 497     m_initialized = false;
 498 }
 499
 500 void wxMimeTypesManagerImpl::InitIfNeeded()
 501 {
 502     if ( !m_initialized )
 503     {
 504         // set the flag first to prevent recursion
 505         m_initialized = true;
 506
 507         wxString wm = wxTheApp->GetTraits()->GetDesktopEnvironment();
 508
 509         if (wm == wxT("KDE"))
 510             Initialize( wxMAILCAP_KDE  );
 511         else if (wm == wxT("GNOME"))
 512             Initialize( wxMAILCAP_GNOME );
 513         else
 514             Initialize();
 515     }
 516 }
 517
 518
 519
 520 // read system and user mailcaps and other files
 521 void wxMimeTypesManagerImpl::Initialize(int mailcapStyles,
 522                                         const wxString& sExtraDir)
 523 {
 524 #ifdef __VMS
 525     // XDG tables are never installed on OpenVMS
 526     return;
 527 #endif
 528
 529     // Read MIME type - extension associations
 530     LoadXDGGlobs( "/usr/share/mime/globs" );
 531
 532     // Load desktop files for XDG, and then override them with the defaults.
 533     // We will override them one desktop file at a time, rather
 534     // than one mime type at a time, but it should be a reasonable
 535     // heuristic.
 536     {
 537         wxString xdgDataHome = wxGetenv("XDG_DATA_HOME");
 538         if ( xdgDataHome.empty() )
 539             xdgDataHome = wxGetHomeDir() + "/.local/share";
 540         wxString xdgDataDirs = wxGetenv("XDG_DATA_DIRS");
 541         if ( xdgDataDirs.empty() )
 542         {
 543             xdgDataDirs = "/usr/local/share:/usr/share";
 544             if (mailcapStyles & wxMAILCAP_GNOME)
 545                 xdgDataDirs += ":/usr/share/gnome:/opt/gnome/share";
 546             if (mailcapStyles & wxMAILCAP_KDE)
 547                 xdgDataDirs += ":/usr/share/kde3:/opt/kde3/share";
 548         }
 549         if ( !sExtraDir.empty() )
 550         {
 551            xdgDataDirs += ':';
 552            xdgDataDirs += sExtraDir;
 553         }
 554
 555         wxArrayString dirs;
 556         wxStringTokenizer tokenizer(xdgDataDirs, ":");
 557         while ( tokenizer.HasMoreTokens() )
 558         {
 559             wxString p = tokenizer.GetNextToken();
 560             dirs.Add(p);
 561         }
 562         dirs.insert(dirs.begin(), xdgDataHome);
 563
 564         wxString defaultsList;
 565         size_t i;
 566         for (i = 0; i < dirs.GetCount(); i++)
 567         {
 568             wxString f = dirs[i];
 569             if (f.Last() != '/') f += '/';
 570             f += "applications/defaults.list";
 571             if (wxFileExists(f))
 572             {
 573                 defaultsList = f;
 574                 break;
 575             }
 576         }
 577
 578         // Load application files and associate them to corresponding mime types.
 579         size_t nDirs = dirs.GetCount();
 580         for (size_t nDir = 0; nDir < nDirs; nDir++)
 581         {
 582             wxString dirStr = dirs[nDir];
 583             if (dirStr.Last() != '/') dirStr += '/';
 584             dirStr += "applications";
 585             LoadXDGAppsFilesFromDir(dirStr);
 586         }
 587
 588         if (!defaultsList.IsEmpty())
 589         {
 590             wxArrayString deskTopFilesSeen;
 591
 592             wxMimeTextFile textfile(defaultsList);
 593             if ( textfile.Open() )
 594             {
 595                 int nIndex = textfile.pIndexOf( wxT("[Default Applications]") );
 596                 if (nIndex != wxNOT_FOUND)
 597                 {
 598                     for (i = nIndex+1; i < textfile.GetLineCount(); i++)
 599                     {
 600                         if (textfile.GetLine(i).Find(wxT("=")) != wxNOT_FOUND)
 601                         {
 602                             wxString mimeType = textfile.GetVerb(i);
 603                             wxString desktopFile = textfile.GetCmd(i);
 604
 605                             if (deskTopFilesSeen.Index(desktopFile) == wxNOT_FOUND)
 606                             {
 607                                 deskTopFilesSeen.Add(desktopFile);
 608                                 size_t j;
 609                                 for (j = 0; j < dirs.GetCount(); j++)
 610                                 {
 611                                     wxString desktopPath = dirs[j];
 612                                     if (desktopPath.Last() != '/') desktopPath += '/';
 613                                     desktopPath += "applications/";
 614                                     desktopPath += desktopFile;
 615
 616                                     if (wxFileExists(desktopPath))
 617                                         LoadXDGApp(desktopPath);
 618                                 }
 619                             }
 620                         }
 621                     }
 622                 }
 623             }
 624         }
 625     }
 626 }
 627
 628 // clear data so you can read another group of WM files
 629 void wxMimeTypesManagerImpl::ClearData()
 630 {
 631     m_aTypes.Clear();
 632     m_aIcons.Clear();
 633     m_aExtensions.Clear();
 634     m_aDescriptions.Clear();
 635
 636     WX_CLEAR_ARRAY(m_aEntries);
 637     m_aEntries.Empty();
 638 }
 639
 640 wxMimeTypesManagerImpl::~wxMimeTypesManagerImpl()
 641 {
 642     ClearData();
 643 }
 644
 645 wxFileType * wxMimeTypesManagerImpl::Associate(const wxFileTypeInfo& ftInfo)
 646 {
 647     InitIfNeeded();
 648
 649     wxString strType = ftInfo.GetMimeType();
 650     wxString strDesc = ftInfo.GetDescription();
 651     wxString strIcon = ftInfo.GetIconFile();
 652
 653     wxMimeTypeCommands *entry = new wxMimeTypeCommands();
 654
 655     if ( ! ftInfo.GetOpenCommand().empty())
 656         entry->Add(wxT("open=")  + ftInfo.GetOpenCommand() + wxT(" %s "));
 657     if ( ! ftInfo.GetPrintCommand().empty())
 658         entry->Add(wxT("print=") + ftInfo.GetPrintCommand() + wxT(" %s "));
 659
 660     // now find where these extensions are in the data store and remove them
 661     wxArrayString sA_Exts = ftInfo.GetExtensions();
 662     wxString sExt, sExtStore;
 663     size_t i, nIndex;
 664     size_t nExtCount = sA_Exts.GetCount();
 665     for (i=0; i < nExtCount; i++)
 666     {
 667         sExt = sA_Exts.Item(i);
 668
 669         // clean up to just a space before and after
 670         sExt.Trim().Trim(false);
 671         sExt = wxT(' ') + sExt + wxT(' ');
 672         size_t nCount = m_aExtensions.GetCount();
 673         for (nIndex = 0; nIndex < nCount; nIndex++)
 674         {
 675             sExtStore = m_aExtensions.Item(nIndex);
 676             if (sExtStore.Replace(sExt, wxT(" ") ) > 0)
 677                 m_aExtensions.Item(nIndex) = sExtStore;
 678         }
 679     }
 680
 681     if ( !DoAssociation(strType, strIcon, entry, sA_Exts, strDesc) )
 682         return NULL;
 683
 684     return GetFileTypeFromMimeType(strType);
 685 }
 686
 687 bool wxMimeTypesManagerImpl::DoAssociation(const wxString& strType,
 688                                            const wxString& strIcon,
 689                                            wxMimeTypeCommands *entry,
 690                                            const wxArrayString& strExtensions,
 691                                            const wxString& strDesc)
 692 {
 693     int nIndex = AddToMimeData(strType, strIcon, entry, strExtensions, strDesc, true);
 694
 695     if ( nIndex == wxNOT_FOUND )
 696         return false;
 697
 698     return true;
 699 }
 700
 701 int wxMimeTypesManagerImpl::AddToMimeData(const wxString& strType,
 702                                           const wxString& strIcon,
 703                                           wxMimeTypeCommands *entry,
 704                                           const wxArrayString& strExtensions,
 705                                           const wxString& strDesc,
 706                                           bool replaceExisting)
 707 {
 708     InitIfNeeded();
 709
 710     // ensure mimetype is always lower case
 711     wxString mimeType = strType.Lower();
 712
 713     // is this a known MIME type?
 714     int nIndex = m_aTypes.Index(mimeType);
 715     if ( nIndex == wxNOT_FOUND )
 716     {
 717         // new file type
 718         m_aTypes.Add(mimeType);
 719         m_aIcons.Add(strIcon);
 720         m_aEntries.Add(entry ? entry : new wxMimeTypeCommands);
 721
 722         // change nIndex so we can use it below to add the extensions
 723         m_aExtensions.Add(wxEmptyString);
 724         nIndex = m_aExtensions.size() - 1;
 725
 726         m_aDescriptions.Add(strDesc);
 727     }
 728     else // yes, we already have it
 729     {
 730         if ( replaceExisting )
 731         {
 732             // if new description change it
 733             if ( !strDesc.empty())
 734                 m_aDescriptions[nIndex] = strDesc;
 735
 736             // if new icon change it
 737             if ( !strIcon.empty())
 738                 m_aIcons[nIndex] = strIcon;
 739
 740             if ( entry )
 741             {
 742                 delete m_aEntries[nIndex];
 743                 m_aEntries[nIndex] = entry;
 744             }
 745         }
 746         else // add data we don't already have ...
 747         {
 748             // if new description add only if none
 749             if ( m_aDescriptions[nIndex].empty() )
 750                 m_aDescriptions[nIndex] = strDesc;
 751
 752             // if new icon and no existing icon
 753             if ( m_aIcons[nIndex].empty() )
 754                 m_aIcons[nIndex] = strIcon;
 755
 756             // add any new entries...
 757             if ( entry )
 758             {
 759                 wxMimeTypeCommands *entryOld = m_aEntries[nIndex];
 760
 761                 size_t count = entry->GetCount();
 762                 for ( size_t i = 0; i < count; i++ )
 763                 {
 764                     const wxString& verb = entry->GetVerb(i);
 765                     if ( !entryOld->HasVerb(verb) )
 766                     {
 767                         entryOld->AddOrReplaceVerb(verb, entry->GetCmd(i));
 768                     }
 769                 }
 770
 771                 // as we don't store it anywhere, it won't be deleted later as
 772                 // usual -- do it immediately instead
 773                 delete entry;
 774             }
 775         }
 776     }
 777
 778     // always add the extensions to this mimetype
 779     wxString& exts = m_aExtensions[nIndex];
 780
 781     // add all extensions we don't have yet
 782     wxString ext;
 783     size_t count = strExtensions.GetCount();
 784     for ( size_t i = 0; i < count; i++ )
 785     {
 786         ext = strExtensions[i];
 787         ext += wxT(' ');
 788
 789         if ( exts.Find(ext) == wxNOT_FOUND )
 790         {
 791             exts += ext;
 792         }
 793     }
 794
 795     // check data integrity
 796     wxASSERT( m_aTypes.GetCount() == m_aEntries.GetCount() &&
 797               m_aTypes.GetCount() == m_aExtensions.GetCount() &&
 798               m_aTypes.GetCount() == m_aIcons.GetCount() &&
 799               m_aTypes.GetCount() == m_aDescriptions.GetCount() );
 800
 801     return nIndex;
 802 }
 803
 804 wxFileType * wxMimeTypesManagerImpl::GetFileTypeFromExtension(const wxString& ext)
 805 {
 806     if (ext.empty() )
 807         return NULL;
 808
 809     InitIfNeeded();
 810
 811     size_t count = m_aExtensions.GetCount();
 812     for ( size_t n = 0; n < count; n++ )
 813     {
 814         wxStringTokenizer tk(m_aExtensions[n], wxT(' '));
 815
 816         while ( tk.HasMoreTokens() )
 817         {
 818             // consider extensions as not being case-sensitive
 819             if ( tk.GetNextToken().IsSameAs(ext, false /* no case */) )
 820             {
 821                 // found
 822                 wxFileType *fileType = new wxFileType;
 823                 fileType->m_impl->Init(this, n);
 824
 825                 return fileType;
 826             }
 827         }
 828     }
 829
 830     return NULL;
 831 }
 832
 833 wxFileType * wxMimeTypesManagerImpl::GetFileTypeFromMimeType(const wxString& mimeType)
 834 {
 835     InitIfNeeded();
 836
 837     wxFileType * fileType = NULL;
 838     // mime types are not case-sensitive
 839     wxString mimetype(mimeType);
 840     mimetype.MakeLower();
 841
 842     // first look for an exact match
 843     int index = m_aTypes.Index(mimetype);
 844
 845     if ( index != wxNOT_FOUND )
 846     {
 847         fileType = new wxFileType;
 848         fileType->m_impl->Init(this, index);
 849     }
 850
 851     // then try to find "text/*" as match for "text/plain" (for example)
 852     // NB: if mimeType doesn't contain '/' at all, BeforeFirst() will return
 853     //     the whole string - ok.
 854
 855     index = wxNOT_FOUND;
 856     wxString strCategory = mimetype.BeforeFirst(wxT('/'));
 857
 858     size_t nCount = m_aTypes.GetCount();
 859     for ( size_t n = 0; n < nCount; n++ )
 860     {
 861         if ( (m_aTypes[n].BeforeFirst(wxT('/')) == strCategory ) &&
 862                 m_aTypes[n].AfterFirst(wxT('/')) == wxT("*") )
 863         {
 864             index = n;
 865             break;
 866         }
 867     }
 868
 869     if ( index != wxNOT_FOUND )
 870     {
 871        // don't throw away fileType that was already found
 872         if (!fileType)
 873             fileType = new wxFileType;
 874         fileType->m_impl->Init(this, index);
 875     }
 876
 877     return fileType;
 878 }
 879
 880 wxString wxMimeTypesManagerImpl::GetCommand(const wxString & verb, size_t nIndex) const
 881 {
 882     wxString command, testcmd, sV, sTmp;
 883     sV = verb + wxT("=");
 884
 885     // list of verb = command pairs for this mimetype
 886     wxMimeTypeCommands * sPairs = m_aEntries [nIndex];
 887
 888     size_t i;
 889     size_t nCount = sPairs->GetCount();
 890     for ( i = 0; i < nCount; i++ )
 891     {
 892         sTmp = sPairs->GetVerbCmd (i);
 893         if ( sTmp.Contains(sV) )
 894             command = sTmp.AfterFirst(wxT('='));
 895     }
 896
 897     return command;
 898 }
 899
 900 void wxMimeTypesManagerImpl::AddFallback(const wxFileTypeInfo& filetype)
 901 {
 902     InitIfNeeded();
 903
 904     wxString extensions;
 905     const wxArrayString& exts = filetype.GetExtensions();
 906     size_t nExts = exts.GetCount();
 907     for ( size_t nExt = 0; nExt < nExts; nExt++ )
 908     {
 909         if ( nExt > 0 )
 910             extensions += wxT(' ');
 911
 912         extensions += exts[nExt];
 913     }
 914
 915     AddMimeTypeInfo(filetype.GetMimeType(),
 916                     extensions,
 917                     filetype.GetDescription());
 918 }
 919
 920 void wxMimeTypesManagerImpl::AddMimeTypeInfo(const wxString& strMimeType,
 921                                              const wxString& strExtensions,
 922                                              const wxString& strDesc)
 923 {
 924     // reading mailcap may find image/* , while
 925     // reading mime.types finds image/gif and no match is made
 926     // this means all the get functions don't work  fix this
 927     wxString strIcon;
 928     wxString sTmp = strExtensions;
 929
 930     wxArrayString sExts;
 931     sTmp.Trim().Trim(false);
 932
 933     while (!sTmp.empty())
 934     {
 935         sExts.Add(sTmp.AfterLast(wxT(' ')));
 936         sTmp = sTmp.BeforeLast(wxT(' '));
 937     }
 938
 939     AddToMimeData(strMimeType, strIcon, NULL, sExts, strDesc, true);
 940 }
 941
 942 size_t wxMimeTypesManagerImpl::EnumAllFileTypes(wxArrayString& mimetypes)
 943 {
 944     InitIfNeeded();
 945
 946     mimetypes.Empty();
 947
 948     size_t count = m_aTypes.GetCount();
 949     for ( size_t n = 0; n < count; n++ )
 950     {
 951         // don't return template types from here (i.e. anything containg '*')
 952         const wxString &type = m_aTypes[n];
 953         if ( type.Find(wxT('*')) == wxNOT_FOUND )
 954         {
 955             mimetypes.Add(type);
 956         }
 957     }
 958
 959     return mimetypes.GetCount();
 960 }
 961
 962 // ----------------------------------------------------------------------------
 963 // writing to MIME type files
 964 // ----------------------------------------------------------------------------
 965
 966 bool wxMimeTypesManagerImpl::Unassociate(wxFileType *ft)
 967 {
 968     InitIfNeeded();
 969
 970     wxArrayString sMimeTypes;
 971     ft->GetMimeTypes(sMimeTypes);
 972
 973     size_t i;
 974     size_t nCount = sMimeTypes.GetCount();
 975     for (i = 0; i < nCount; i ++)
 976     {
 977         const wxString &sMime = sMimeTypes.Item(i);
 978         int nIndex = m_aTypes.Index(sMime);
 979         if ( nIndex == wxNOT_FOUND)
 980         {
 981             // error if we get here ??
 982             return false;
 983         }
 984         else
 985         {
 986             m_aTypes.RemoveAt(nIndex);
 987             m_aEntries.RemoveAt(nIndex);
 988             m_aExtensions.RemoveAt(nIndex);
 989             m_aDescriptions.RemoveAt(nIndex);
 990             m_aIcons.RemoveAt(nIndex);
 991         }
 992     }
 993     // check data integrity
 994     wxASSERT( m_aTypes.GetCount() == m_aEntries.GetCount() &&
 995             m_aTypes.GetCount() == m_aExtensions.GetCount() &&
 996             m_aTypes.GetCount() == m_aIcons.GetCount() &&
 997             m_aTypes.GetCount() == m_aDescriptions.GetCount() );
 998
 999     return true;
1000 }
1001
1002 #endif
1003   // wxUSE_MIMETYPE && wxUSE_FILE