gio/xdgmime/xdgmime.h

   1 /* -*- mode: C; c-file-style: "gnu" -*- */
   2 /* xdgmime.h: XDG Mime Spec mime resolver.  Based on version 0.11 of the spec.
   3  *
   4  * More info can be found at http://www.freedesktop.org/standards/
   5  *
   6  * Copyright (C) 2003  Red Hat, Inc.
   7  * Copyright (C) 2003  Jonathan Blandford <jrb@alum.mit.edu>
   8  *
   9  * Licensed under the Academic Free License version 2.0
  10  * Or under the following terms:
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26
  27 #ifndef __XDG_MIME_H__
  28 #define __XDG_MIME_H__
  29
  30 #include <stdlib.h>
  31 #include <sys/stat.h>
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif /* __cplusplus */
  36
  37 #ifdef XDG_PREFIX
  38 #define XDG_ENTRY(func) _XDG_ENTRY2(XDG_PREFIX,func)
  39 #define _XDG_ENTRY2(prefix,func) _XDG_ENTRY3(prefix,func)
  40 #define _XDG_ENTRY3(prefix,func) prefix##_##func
  41
  42 #define XDG_RESERVED_ENTRY(func) _XDG_RESERVED_ENTRY2(XDG_PREFIX,func)
  43 #define _XDG_RESERVED_ENTRY2(prefix,func) _XDG_RESERVED_ENTRY3(prefix,func)
  44 #define _XDG_RESERVED_ENTRY3(prefix,func) _##prefix##_##func
  45 #endif
  46
  47 typedef void (*XdgMimeCallback) (void *user_data);
  48 typedef void (*XdgMimeDestroy)  (void *user_data);
  49
  50
  51 #ifdef XDG_PREFIX
  52 #define xdg_mime_get_mime_type_for_data       XDG_ENTRY(get_mime_type_for_data)
  53 #define xdg_mime_get_mime_type_for_file       XDG_ENTRY(get_mime_type_for_file)
  54 #define xdg_mime_get_mime_type_from_file_name XDG_ENTRY(get_mime_type_from_file_name)
  55 #define xdg_mime_get_mime_types_from_file_name XDG_ENTRY(get_mime_types_from_file_name)
  56 #define xdg_mime_is_valid_mime_type           XDG_ENTRY(is_valid_mime_type)
  57 #define xdg_mime_mime_type_equal              XDG_ENTRY(mime_type_equal)
  58 #define xdg_mime_media_type_equal             XDG_ENTRY(media_type_equal)
  59 #define xdg_mime_mime_type_subclass           XDG_ENTRY(mime_type_subclass)
  60 #define xdg_mime_get_mime_parents             XDG_ENTRY(get_mime_parents)
  61 #define xdg_mime_list_mime_parents            XDG_ENTRY(list_mime_parents)
  62 #define xdg_mime_unalias_mime_type            XDG_ENTRY(unalias_mime_type)
  63 #define xdg_mime_get_max_buffer_extents       XDG_ENTRY(get_max_buffer_extents)
  64 #define xdg_mime_shutdown                     XDG_ENTRY(shutdown)
  65 #define xdg_mime_dump                         XDG_ENTRY(dump)
  66 #define xdg_mime_register_reload_callback     XDG_ENTRY(register_reload_callback)
  67 #define xdg_mime_remove_callback              XDG_ENTRY(remove_callback)
  68 #define xdg_mime_type_unknown                 XDG_ENTRY(type_unknown)
  69 #define xdg_mime_type_empty                   XDG_ENTRY(type_empty)
  70 #define xdg_mime_type_textplain               XDG_ENTRY(type_textplain)
  71 #define xdg_mime_get_icon                     XDG_ENTRY(get_icon)
  72 #define xdg_mime_get_generic_icon             XDG_ENTRY(get_generic_icon)
  73
  74 #define _xdg_mime_mime_type_subclass          XDG_RESERVED_ENTRY(mime_type_subclass)
  75 #define _xdg_mime_mime_type_equal             XDG_RESERVED_ENTRY(mime_type_equal)
  76 #define _xdg_mime_unalias_mime_type           XDG_RESERVED_ENTRY(unalias_mime_type)
  77 #endif
  78
  79 extern const char xdg_mime_type_unknown[];
  80 extern const char xdg_mime_type_empty[];
  81 extern const char xdg_mime_type_textplain[];
  82 #define XDG_MIME_TYPE_UNKNOWN xdg_mime_type_unknown
  83 #define XDG_MIME_TYPE_EMPTY xdg_mime_type_empty
  84 #define XDG_MIME_TYPE_TEXTPLAIN xdg_mime_type_textplain
  85
  86 const char  *xdg_mime_get_mime_type_for_data       (const void *data,
  87                                                     size_t      len,
  88                                                     int        *result_prio);
  89 #ifdef NOT_USED_IN_GIO
  90 const char  *xdg_mime_get_mime_type_for_file       (const char *file_name,
  91                                                     struct stat *statbuf);
  92 const char  *xdg_mime_get_mime_type_from_file_name (const char *file_name);
  93 #endif
  94 int          xdg_mime_get_mime_types_from_file_name(const char *file_name,
  95                                                     const char *mime_types[],
  96                                                     int         n_mime_types);
  97 #ifdef NOT_USED_IN_GIO
  98 int          xdg_mime_is_valid_mime_type           (const char *mime_type);
  99 #endif
 100 int          xdg_mime_mime_type_equal              (const char *mime_a,
 101                                                     const char *mime_b);
 102 int          xdg_mime_media_type_equal             (const char *mime_a,
 103                                                     const char *mime_b);
 104 int          xdg_mime_mime_type_subclass           (const char *mime_a,
 105                                                     const char *mime_b);
 106   /* xdg_mime_get_mime_parents() is deprecated since it does
 107    * not work correctly with caches. Use xdg_mime_list_parents()
 108    * instead, but notice that that function expects you to free
 109    * the array it returns.
 110    */
 111 #ifdef NOT_USED_IN_GIO
 112 const char **xdg_mime_get_mime_parents             (const char *mime);
 113 #endif
 114 char **      xdg_mime_list_mime_parents            (const char *mime);
 115 const char  *xdg_mime_unalias_mime_type            (const char *mime);
 116 const char  *xdg_mime_get_icon                     (const char *mime);
 117 const char  *xdg_mime_get_generic_icon             (const char *mime);
 118 int          xdg_mime_get_max_buffer_extents       (void);
 119 void         xdg_mime_shutdown                     (void);
 120 #ifdef NOT_USED_IN_GIO
 121 void         xdg_mime_dump                         (void);
 122 #endif
 123 int          xdg_mime_register_reload_callback     (XdgMimeCallback  callback,
 124                                                     void            *data,
 125                                                     XdgMimeDestroy   destroy);
 126 #ifdef NOT_USED_IN_GIO
 127 void         xdg_mime_remove_callback              (int              callback_id);
 128 #endif
 129
 130    /* Private versions of functions that don't call xdg_mime_init () */
 131 int          _xdg_mime_mime_type_equal             (const char *mime_a,
 132                                                     const char *mime_b);
 133 int          _xdg_mime_mime_type_subclass          (const char *mime,
 134                                                     const char *base);
 135 const char  *_xdg_mime_unalias_mime_type           (const char *mime);
 136
 137
 138 #ifdef __cplusplus
 139 }
 140 #endif /* __cplusplus */
 141 #endif /* __XDG_MIME_H__ */