include/wx/unix/mimetype.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/unix/mimetype.h
   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 #ifndef _MIMETYPE_IMPL_H
  13 #define _MIMETYPE_IMPL_H
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "mimetype.h"
  17 #endif
  18
  19 #include "wx/mimetype.h"
  20
  21 #if (wxUSE_FILE && wxUSE_TEXTFILE)
  22
  23 class wxMimeTypeCommands;
  24
  25 WX_DEFINE_ARRAY(wxMimeTypeCommands *, wxMimeCommandsArray);
  26
  27 // this is the real wxMimeTypesManager for Unix
  28 class WXDLLEXPORT wxMimeTypesManagerImpl
  29 {
  30 public:
  31     // ctor and dtor
  32     wxMimeTypesManagerImpl();
  33     ~wxMimeTypesManagerImpl();
  34
  35     // load all data into memory - done when it is needed for the first time
  36     void Initialize(int mailcapStyles = wxMAILCAP_ALL,
  37                     const wxString& extraDir = wxEmptyString);
  38
  39     // and delete the data here
  40     void ClearData();
  41
  42     // implement containing class functions
  43     wxFileType *GetFileTypeFromExtension(const wxString& ext);
  44     wxFileType *GetFileTypeFromMimeType(const wxString& mimeType);
  45
  46     size_t EnumAllFileTypes(wxArrayString& mimetypes);
  47
  48     bool ReadMailcap(const wxString& filename, bool fallback = FALSE);
  49     bool ReadMimeTypes(const wxString& filename);
  50
  51     void AddFallback(const wxFileTypeInfo& filetype);
  52
  53     // add information about the given mimetype
  54     void AddMimeTypeInfo(const wxString& mimetype,
  55                          const wxString& extensions,
  56                          const wxString& description);
  57     void AddMailcapInfo(const wxString& strType,
  58                         const wxString& strOpenCmd,
  59                         const wxString& strPrintCmd,
  60                         const wxString& strTest,
  61                         const wxString& strDesc);
  62
  63     // add a new record to the user .mailcap/.mime.types files
  64     wxFileType *Associate(const wxFileTypeInfo& ftInfo);
  65     // remove association
  66     bool Unassociate(wxFileType *ft);
  67
  68     // accessors
  69         // get the string containing space separated extensions for the given
  70         // file type
  71     wxString GetExtension(size_t index) { return m_aExtensions[index]; }
  72
  73 private:
  74     void InitIfNeeded()
  75     {
  76         if ( !m_initialized ) {
  77             // set the flag first to prevent recursion
  78             m_initialized = TRUE;
  79             Initialize();
  80         }
  81     }
  82
  83     wxArrayString m_aTypes,         // MIME types
  84                   m_aDescriptions,  // descriptions (just some text)
  85                   m_aExtensions,    // space separated list of extensions
  86                   m_aIcons;         // Icon filenames
  87
  88     // verb=command pairs for this file type
  89     wxMimeCommandsArray m_aEntries;
  90
  91     // are we initialized?
  92     bool m_initialized;
  93
  94     // keep track of the files we had already loaded (this is a bitwise OR of
  95     // wxMailcapStyle values)
  96     int m_mailcapStylesInited;
  97
  98     wxString GetCommand(const wxString &verb, size_t nIndex) const;
  99
 100     // read Gnome files
 101     void LoadGnomeDataFromKeyFile(const wxString& filename,
 102                                   const wxArrayString& dirs);
 103     void LoadGnomeMimeTypesFromMimeFile(const wxString& filename);
 104     void LoadGnomeMimeFilesFromDir(const wxString& dirbase,
 105                                    const wxArrayString& dirs);
 106     void GetGnomeMimeInfo(const wxString& sExtraDir);
 107
 108     // write gnome files
 109     bool CheckGnomeDirsExist();
 110     bool WriteGnomeKeyFile(int index, bool delete_index);
 111     bool WriteGnomeMimeFile(int index, bool delete_index);
 112
 113     // read KDE
 114     void LoadKDELinksForMimeSubtype(const wxString& dirbase,
 115                                     const wxString& subdir,
 116                                     const wxString& filename,
 117                                     const wxArrayString& icondirs);
 118     void LoadKDELinksForMimeType(const wxString& dirbase,
 119                                  const wxString& subdir,
 120                                  const wxArrayString& icondirs);
 121     void LoadKDELinkFilesFromDir(const wxString& dirbase,
 122                                  const wxArrayString& icondirs);
 123     void GetKDEMimeInfo(const wxString& sExtraDir);
 124
 125     // write KDE
 126     bool WriteKDEMimeFile(int index, bool delete_index);
 127     bool CheckKDEDirsExist(const wxString & sOK, const wxString& sTest);
 128
 129     //read write Netscape and MetaMail formats
 130     void GetMimeInfo (const wxString& sExtraDir);
 131     bool WriteToMailCap (int index, bool delete_index);
 132     bool WriteToMimeTypes (int index, bool delete_index);
 133     bool WriteToNSMimeTypes (int index, bool delete_index);
 134
 135     // ReadMailcap() helper
 136     bool ProcessOtherMailcapField(struct MailcapLineData& data,
 137                                   const wxString& curField);
 138
 139     // functions used to do associations
 140
 141     int AddToMimeData(const wxString& strType,
 142                       const wxString& strIcon,
 143                       wxMimeTypeCommands *entry,
 144                       const wxArrayString& strExtensions,
 145                       const wxString& strDesc,
 146                       bool replaceExisting = TRUE);
 147
 148     bool DoAssociation(const wxString& strType,
 149                        const wxString& strIcon,
 150                        wxMimeTypeCommands *entry,
 151                        const wxArrayString& strExtensions,
 152                        const wxString& strDesc);
 153
 154     bool WriteMimeInfo(int nIndex, bool delete_mime );
 155
 156     // give it access to m_aXXX variables
 157     friend class WXDLLEXPORT wxFileTypeImpl;
 158 };
 159
 160
 161
 162 class WXDLLEXPORT wxFileTypeImpl
 163 {
 164 public:
 165     // initialization functions
 166     // this is used to construct a list of mimetypes which match;
 167     // if built with GetFileTypeFromMimetype index 0 has the exact match and
 168     // index 1 the type / * match
 169     // if built with GetFileTypeFromExtension, index 0 has the mimetype for
 170     // the first extension found, index 1 for the second and so on
 171
 172     void Init(wxMimeTypesManagerImpl *manager, size_t index)
 173         { m_manager = manager; m_index.Add(index); }
 174
 175     // accessors
 176     bool GetExtensions(wxArrayString& extensions);
 177     bool GetMimeType(wxString *mimeType) const
 178         { *mimeType = m_manager->m_aTypes[m_index[0]]; return TRUE; }
 179     bool GetMimeTypes(wxArrayString& mimeTypes) const;
 180     bool GetIcon(wxIconLocation *iconLoc) const;
 181
 182     bool GetDescription(wxString *desc) const
 183         { *desc = m_manager->m_aDescriptions[m_index[0]]; return TRUE; }
 184
 185     bool GetOpenCommand(wxString *openCmd,
 186                         const wxFileType::MessageParameters& params) const
 187     {
 188         *openCmd = GetExpandedCommand(wxT("open"), params);
 189         return (! openCmd -> IsEmpty() );
 190     }
 191
 192     bool GetPrintCommand(wxString *printCmd,
 193                          const wxFileType::MessageParameters& params) const
 194     {
 195         *printCmd = GetExpandedCommand(wxT("print"), params);
 196         return (! printCmd -> IsEmpty() );
 197     }
 198
 199         // return the number of commands defined for this file type, 0 if none
 200     size_t GetAllCommands(wxArrayString *verbs, wxArrayString *commands,
 201                           const wxFileType::MessageParameters& params) const;
 202
 203
 204     // remove the record for this file type
 205     // probably a mistake to come here, use wxMimeTypesManager.Unassociate (ft) instead
 206     bool Unassociate(wxFileType *ft)
 207     {
 208         return m_manager->Unassociate(ft);
 209     }
 210
 211     // set an arbitrary command, ask confirmation if it already exists and
 212     // overwriteprompt is TRUE
 213     bool SetCommand(const wxString& cmd, const wxString& verb, bool overwriteprompt = TRUE);
 214     bool SetDefaultIcon(const wxString& strIcon = wxEmptyString, int index = 0);
 215
 216 private:
 217     wxString
 218     GetExpandedCommand(const wxString & verb,
 219                        const wxFileType::MessageParameters& params) const;
 220
 221     wxMimeTypesManagerImpl *m_manager;
 222     wxArrayInt              m_index; // in the wxMimeTypesManagerImpl arrays
 223 };
 224
 225 #endif
 226   // wxUSE_FILE
 227
 228 #endif
 229   //_MIMETYPE_IMPL_H
 230