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 license (part of wxExtra library)
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _MIMETYPE_IMPL_H
  13 #define _MIMETYPE_IMPL_H
  14
  15 #ifdef __GNUG__
  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_STANDARD,
  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     void LoadGnomeMimeTypesFromMimeFile(const wxString& filename);
 103     void LoadGnomeMimeFilesFromDir(const wxString& dirbase);
 104     void GetGnomeMimeInfo(const wxString& sExtraDir);
 105
 106     // write gnome files
 107     bool CheckGnomeDirsExist();
 108     bool WriteGnomeKeyFile(int index, bool delete_index);
 109     bool WriteGnomeMimeFile(int index, bool delete_index);
 110
 111     // read KDE
 112     void LoadKDELinksForMimeSubtype(const wxString& dirbase,
 113                                     const wxString& subdir,
 114                                     const wxString& filename,
 115                                     const wxArrayString& icondirs);
 116     void LoadKDELinksForMimeType(const wxString& dirbase,
 117                                  const wxString& subdir,
 118                                  const wxArrayString& icondirs);
 119     void LoadKDELinkFilesFromDir(const wxString& dirbase,
 120                                  const wxArrayString& icondirs);
 121     void GetKDEMimeInfo(const wxString& sExtraDir);
 122
 123     // write KDE
 124     bool WriteKDEMimeFile(int index, bool delete_index);
 125     bool CheckKDEDirsExist(const wxString & sOK, const wxString& sTest);
 126
 127     //read write Netscape and MetaMail formats
 128     void GetMimeInfo (const wxString& sExtraDir);
 129     bool WriteToMailCap (int index, bool delete_index);
 130     bool WriteToMimeTypes (int index, bool delete_index);
 131     bool WriteToNSMimeTypes (int index, bool delete_index);
 132
 133     // ReadMailcap() helper
 134     bool ProcessOtherMailcapField(struct MailcapLineData& data,
 135                                   const wxString& curField);
 136
 137     // functions used to do associations
 138
 139     int AddToMimeData(const wxString& strType,
 140                       const wxString& strIcon,
 141                       wxMimeTypeCommands *entry,
 142                       const wxArrayString& strExtensions,
 143                       const wxString& strDesc,
 144                       bool replaceExisting = TRUE);
 145
 146     bool DoAssociation(const wxString& strType,
 147                        const wxString& strIcon,
 148                        wxMimeTypeCommands *entry,
 149                        const wxArrayString& strExtensions,
 150                        const wxString& strDesc);
 151
 152     bool WriteMimeInfo(int nIndex, bool delete_mime );
 153
 154     // give it access to m_aXXX variables
 155     friend class WXDLLEXPORT wxFileTypeImpl;
 156 };
 157
 158
 159
 160 class WXDLLEXPORT wxFileTypeImpl
 161 {
 162 public:
 163     // initialization functions
 164     // this is used to construct a list of mimetypes which match;
 165     // if built with GetFileTypeFromMimetype index 0 has the exact match and
 166     // index 1 the type / * match
 167     // if built with GetFileTypeFromExtension, index 0 has the mimetype for
 168     // the first extension found, index 1 for the second and so on
 169
 170     void Init(wxMimeTypesManagerImpl *manager, size_t index)
 171         { m_manager = manager; m_index.Add(index); }
 172
 173     // accessors
 174     bool GetExtensions(wxArrayString& extensions);
 175     bool GetMimeType(wxString *mimeType) const
 176         { *mimeType = m_manager->m_aTypes[m_index[0]]; return TRUE; }
 177     bool GetMimeTypes(wxArrayString& mimeTypes) const;
 178     bool GetIcon(wxIcon *icon, wxString *iconFile = NULL,
 179                  int *iconIndex = NULL) const;
 180
 181     bool GetDescription(wxString *desc) const
 182         { *desc = m_manager->m_aDescriptions[m_index[0]]; return TRUE; }
 183
 184     bool GetOpenCommand(wxString *openCmd,
 185                         const wxFileType::MessageParameters& params) const
 186     {
 187         *openCmd = GetExpandedCommand(wxT("open"), params);
 188         return (! openCmd -> IsEmpty() );
 189     }
 190
 191     bool GetPrintCommand(wxString *printCmd,
 192                          const wxFileType::MessageParameters& params) const
 193     {
 194         *printCmd = GetExpandedCommand(wxT("print"), params);
 195         return (! printCmd -> IsEmpty() );
 196     }
 197
 198         // return the number of commands defined for this file type, 0 if none
 199     size_t GetAllCommands(wxArrayString *verbs, wxArrayString *commands,
 200                           const wxFileType::MessageParameters& params) const;
 201
 202
 203     // remove the record for this file type
 204     // probably a mistake to come here, use wxMimeTypesManager.Unassociate (ft) instead
 205     bool Unassociate(wxFileType *ft)
 206     {
 207         return m_manager->Unassociate(ft);
 208     }
 209
 210     // set an arbitrary command, ask confirmation if it already exists and
 211     // overwriteprompt is TRUE
 212     bool SetCommand(const wxString& cmd, const wxString& verb, bool overwriteprompt = TRUE);
 213     bool SetDefaultIcon(const wxString& strIcon = wxEmptyString, int index = 0);
 214
 215 private:
 216     wxString
 217     GetExpandedCommand(const wxString & verb,
 218                        const wxFileType::MessageParameters& params) const;
 219
 220     wxMimeTypesManagerImpl *m_manager;
 221     wxArrayInt              m_index; // in the wxMimeTypesManagerImpl arrays
 222 };
 223
 224 #endif
 225   // wxUSE_FILE
 226
 227 #endif
 228   //_MIMETYPE_IMPL_H
 229