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  * SPDX-License-Identifier: LGPL-2.1-or-later or AFL-2.0
  10  */
  11
  12
  13 #ifndef __XDG_MIME_H__
  14 #define __XDG_MIME_H__
  15
  16 #include <stdlib.h>
  17 #include <sys/stat.h>
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif /* __cplusplus */
  22
  23 #ifdef XDG_PREFIX
  24 #define XDG_ENTRY(func) _XDG_ENTRY2(XDG_PREFIX,func)
  25 #define _XDG_ENTRY2(prefix,func) _XDG_ENTRY3(prefix,func)
  26 #define _XDG_ENTRY3(prefix,func) prefix##_##func
  27
  28 #define XDG_RESERVED_ENTRY(func) _XDG_RESERVED_ENTRY2(XDG_PREFIX,func)
  29 #define _XDG_RESERVED_ENTRY2(prefix,func) _XDG_RESERVED_ENTRY3(prefix,func)
  30 #define _XDG_RESERVED_ENTRY3(prefix,func) _##prefix##_##func
  31 #endif
  32
  33 typedef void (*XdgMimeCallback) (void *user_data);
  34 typedef void (*XdgMimeDestroy)  (void *user_data);
  35
  36
  37 #ifdef XDG_PREFIX
  38 #define xdg_mime_get_mime_type_for_data       XDG_ENTRY(get_mime_type_for_data)
  39 #define xdg_mime_get_mime_type_for_file       XDG_ENTRY(get_mime_type_for_file)
  40 #define xdg_mime_get_mime_type_from_file_name XDG_ENTRY(get_mime_type_from_file_name)
  41 #define xdg_mime_get_mime_types_from_file_name XDG_ENTRY(get_mime_types_from_file_name)
  42 #define xdg_mime_is_valid_mime_type           XDG_ENTRY(is_valid_mime_type)
  43 #define xdg_mime_mime_type_equal              XDG_ENTRY(mime_type_equal)
  44 #define xdg_mime_media_type_equal             XDG_ENTRY(media_type_equal)
  45 #define xdg_mime_mime_type_subclass           XDG_ENTRY(mime_type_subclass)
  46 #define xdg_mime_get_mime_parents             XDG_ENTRY(get_mime_parents)
  47 #define xdg_mime_list_mime_parents            XDG_ENTRY(list_mime_parents)
  48 #define xdg_mime_unalias_mime_type            XDG_ENTRY(unalias_mime_type)
  49 #define xdg_mime_get_max_buffer_extents       XDG_ENTRY(get_max_buffer_extents)
  50 #define xdg_mime_shutdown                     XDG_ENTRY(shutdown)
  51 #define xdg_mime_dump                         XDG_ENTRY(dump)
  52 #define xdg_mime_register_reload_callback     XDG_ENTRY(register_reload_callback)
  53 #define xdg_mime_remove_callback              XDG_ENTRY(remove_callback)
  54 #define xdg_mime_type_unknown                 XDG_ENTRY(type_unknown)
  55 #define xdg_mime_type_empty                   XDG_ENTRY(type_empty)
  56 #define xdg_mime_type_textplain               XDG_ENTRY(type_textplain)
  57 #define xdg_mime_get_icon                     XDG_ENTRY(get_icon)
  58 #define xdg_mime_get_generic_icon             XDG_ENTRY(get_generic_icon)
  59
  60 #define _xdg_mime_mime_type_equal             XDG_RESERVED_ENTRY(mime_type_equal)
  61 #define _xdg_mime_mime_type_subclass          XDG_RESERVED_ENTRY(mime_type_subclass)
  62 #define _xdg_mime_unalias_mime_type           XDG_RESERVED_ENTRY(unalias_mime_type)
  63 #endif
  64
  65 extern const char xdg_mime_type_unknown[];
  66 extern const char xdg_mime_type_empty[];
  67 extern const char xdg_mime_type_textplain[];
  68 #define XDG_MIME_TYPE_UNKNOWN xdg_mime_type_unknown
  69 #define XDG_MIME_TYPE_EMPTY xdg_mime_type_empty
  70 #define XDG_MIME_TYPE_TEXTPLAIN xdg_mime_type_textplain
  71
  72 const char  *xdg_mime_get_mime_type_for_data       (const void *data,
  73                                                     size_t      len,
  74                                                     int        *result_prio);
  75 const char  *xdg_mime_get_mime_type_for_file       (const char *file_name,
  76                                                     struct stat *statbuf);
  77 const char  *xdg_mime_get_mime_type_from_file_name (const char *file_name);
  78 int          xdg_mime_get_mime_types_from_file_name(const char *file_name,
  79                                                     const char *mime_types[],
  80                                                     int         n_mime_types);
  81 int          xdg_mime_is_valid_mime_type           (const char *mime_type);
  82 int          xdg_mime_mime_type_equal              (const char *mime_a,
  83                                                     const char *mime_b);
  84 int          xdg_mime_media_type_equal             (const char *mime_a,
  85                                                     const char *mime_b);
  86 int          xdg_mime_mime_type_subclass           (const char *mime_a,
  87                                                     const char *mime_b);
  88   /* xdg_mime_get_mime_parents() is deprecated since it does
  89    * not work correctly with caches. Use xdg_mime_list_parents()
  90    * instead, but notice that that function expects you to free
  91    * the array it returns.
  92    */
  93 const char **xdg_mime_get_mime_parents             (const char *mime);
  94 char **      xdg_mime_list_mime_parents            (const char *mime);
  95 const char  *xdg_mime_unalias_mime_type            (const char *mime);
  96 const char  *xdg_mime_get_icon                     (const char *mime);
  97 const char  *xdg_mime_get_generic_icon             (const char *mime);
  98 int          xdg_mime_get_max_buffer_extents       (void);
  99 void         xdg_mime_shutdown                     (void);
 100 void         xdg_mime_dump                         (void);
 101 int          xdg_mime_register_reload_callback     (XdgMimeCallback  callback,
 102                                                     void            *data,
 103                                                     XdgMimeDestroy   destroy);
 104 void         xdg_mime_remove_callback              (int              callback_id);
 105
 106 void xdg_mime_set_dirs (const char * const *dirs);
 107
 108    /* Private versions of functions that don't call xdg_mime_init () */
 109 int          _xdg_mime_mime_type_equal             (const char *mime_a,
 110                                                     const char *mime_b);
 111 int          _xdg_mime_mime_type_subclass          (const char *mime,
 112                                                     const char *base,
 113                                                     const char ***seen);
 114 const char  *_xdg_mime_unalias_mime_type           (const char *mime);
 115
 116
 117 #ifdef __cplusplus
 118 }
 119 #endif /* __cplusplus */
 120 #endif /* __XDG_MIME_H__ */