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 #include "wx/mimetype.h"
  16
  17 #if wxUSE_MIMETYPE
  18
  19 class wxMimeTypeCommands;
  20
  21 WX_DEFINE_ARRAY_PTR(wxMimeTypeCommands *, wxMimeCommandsArray);
  22
  23 // this is the real wxMimeTypesManager for Unix
  24 class WXDLLIMPEXP_BASE wxMimeTypesManagerImpl
  25 {
  26 public:
  27     // ctor and dtor
  28     wxMimeTypesManagerImpl();
  29     virtual ~wxMimeTypesManagerImpl();
  30
  31     // load all data into memory - done when it is needed for the first time
  32     void Initialize(int mailcapStyles = wxMAILCAP_ALL,
  33                     const wxString& extraDir = wxEmptyString);
  34
  35     // and delete the data here
  36     void ClearData();
  37
  38     // implement containing class functions
  39     wxFileType *GetFileTypeFromExtension(const wxString& ext);
  40     wxFileType *GetFileTypeFromMimeType(const wxString& mimeType);
  41
  42     size_t EnumAllFileTypes(wxArrayString& mimetypes);
  43
  44     void AddFallback(const wxFileTypeInfo& filetype);
  45
  46     // add information about the given mimetype
  47     void AddMimeTypeInfo(const wxString& mimetype,
  48                          const wxString& extensions,
  49                          const wxString& description);
  50     void AddMailcapInfo(const wxString& strType,
  51                         const wxString& strOpenCmd,
  52                         const wxString& strPrintCmd,
  53                         const wxString& strTest,
  54                         const wxString& strDesc);
  55
  56     // add a new record to the user .mailcap/.mime.types files
  57     wxFileType *Associate(const wxFileTypeInfo& ftInfo);
  58     // remove association
  59     bool Unassociate(wxFileType *ft);
  60
  61     // accessors
  62         // get the string containing space separated extensions for the given
  63         // file type
  64     wxString GetExtension(size_t index) { return m_aExtensions[index]; }
  65
  66 protected:
  67     void InitIfNeeded();
  68
  69     wxArrayString m_aTypes,         // MIME types
  70                   m_aDescriptions,  // descriptions (just some text)
  71                   m_aExtensions,    // space separated list of extensions
  72                   m_aIcons;         // Icon filenames
  73
  74     // verb=command pairs for this file type
  75     wxMimeCommandsArray m_aEntries;
  76
  77     // are we initialized?
  78     bool m_initialized;
  79
  80     wxString GetCommand(const wxString &verb, size_t nIndex) const;
  81
  82     // Read XDG *.desktop file
  83     void LoadXDGApp(const wxString& filename);
  84     // Scan XDG directory
  85     void LoadXDGAppsFilesFromDir(const wxString& dirname);
  86
  87     // functions used to do associations
  88     virtual int AddToMimeData(const wxString& strType,
  89                       const wxString& strIcon,
  90                       wxMimeTypeCommands *entry,
  91                       const wxArrayString& strExtensions,
  92                       const wxString& strDesc,
  93                       bool replaceExisting = TRUE);
  94     virtual bool DoAssociation(const wxString& strType,
  95                        const wxString& strIcon,
  96                        wxMimeTypeCommands *entry,
  97                        const wxArrayString& strExtensions,
  98                        const wxString& strDesc);
  99
 100     // give it access to m_aXXX variables
 101     friend class WXDLLIMPEXP_FWD_BASE wxFileTypeImpl;
 102 };
 103
 104 class WXDLLIMPEXP_BASE wxFileTypeImpl
 105 {
 106 public:
 107     // initialization functions
 108     // this is used to construct a list of mimetypes which match;
 109     // if built with GetFileTypeFromMimetype index 0 has the exact match and
 110     // index 1 the type / * match
 111     // if built with GetFileTypeFromExtension, index 0 has the mimetype for
 112     // the first extension found, index 1 for the second and so on
 113
 114     void Init(wxMimeTypesManagerImpl *manager, size_t index)
 115         { m_manager = manager; m_index.Add(index); }
 116
 117     // accessors
 118     bool GetExtensions(wxArrayString& extensions);
 119     bool GetMimeType(wxString *mimeType) const
 120         { *mimeType = m_manager->m_aTypes[m_index[0]]; return TRUE; }
 121     bool GetMimeTypes(wxArrayString& mimeTypes) const;
 122     bool GetIcon(wxIconLocation *iconLoc) const;
 123
 124     bool GetDescription(wxString *desc) const
 125         { *desc = m_manager->m_aDescriptions[m_index[0]]; return TRUE; }
 126
 127     bool GetOpenCommand(wxString *openCmd,
 128                         const wxFileType::MessageParameters& params) const
 129     {
 130         *openCmd = GetExpandedCommand(wxT("open"), params);
 131         return (! openCmd -> IsEmpty() );
 132     }
 133
 134     bool GetPrintCommand(wxString *printCmd,
 135                          const wxFileType::MessageParameters& params) const
 136     {
 137         *printCmd = GetExpandedCommand(wxT("print"), params);
 138         return (! printCmd -> IsEmpty() );
 139     }
 140
 141         // return the number of commands defined for this file type, 0 if none
 142     size_t GetAllCommands(wxArrayString *verbs, wxArrayString *commands,
 143                           const wxFileType::MessageParameters& params) const;
 144
 145
 146     // remove the record for this file type
 147     // probably a mistake to come here, use wxMimeTypesManager.Unassociate (ft) instead
 148     bool Unassociate(wxFileType *ft)
 149     {
 150         return m_manager->Unassociate(ft);
 151     }
 152
 153     // set an arbitrary command, ask confirmation if it already exists and
 154     // overwriteprompt is TRUE
 155     bool SetCommand(const wxString& cmd, const wxString& verb, bool overwriteprompt = TRUE);
 156     bool SetDefaultIcon(const wxString& strIcon = wxEmptyString, int index = 0);
 157
 158 private:
 159     wxString
 160     GetExpandedCommand(const wxString & verb,
 161                        const wxFileType::MessageParameters& params) const;
 162
 163     wxMimeTypesManagerImpl *m_manager;
 164     wxArrayInt              m_index; // in the wxMimeTypesManagerImpl arrays
 165 };
 166
 167 #endif // wxUSE_MIMETYPE
 168
 169 #endif // _MIMETYPE_IMPL_H
 170
 171