1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* xdgmimeicon.c: Private file. Datastructure for storing the aliases.
3 *
4 * More info can be found at http://www.freedesktop.org/standards/
5 *
6 * Copyright (C) 2008 Red Hat, Inc.
7 *
8 * Licensed under the Academic Free License version 2.0
9 * Or under the following terms:
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "config.h"
26
27 #include "xdgmimeicon.h"
28 #include "xdgmimeint.h"
29 #include <stdlib.h>
30 #include <stdio.h>
31 #include <assert.h>
32 #include <string.h>
33 #include <fnmatch.h>
34
35 #ifndef FALSE
36 #define FALSE (0)
37 #endif
38
39 #ifndef TRUE
40 #define TRUE (!FALSE)
41 #endif
42
43 typedef struct XdgIcon XdgIcon;
44
45 struct XdgIcon
46 {
47 char *mime_type;
48 char *icon_name;
49 };
50
51 struct XdgIconList
52 {
53 struct XdgIcon *icons;
54 int n_icons;
55 };
56
57 XdgIconList *
_xdg_mime_icon_list_new(void)58 _xdg_mime_icon_list_new (void)
59 {
60 XdgIconList *list;
61
62 list = malloc (sizeof (XdgIconList));
63
64 list->icons = NULL;
65 list->n_icons = 0;
66
67 return list;
68 }
69
70 void
_xdg_mime_icon_list_free(XdgIconList * list)71 _xdg_mime_icon_list_free (XdgIconList *list)
72 {
73 int i;
74
75 if (list->icons)
76 {
77 for (i = 0; i < list->n_icons; i++)
78 {
79 free (list->icons[i].mime_type);
80 free (list->icons[i].icon_name);
81 }
82 free (list->icons);
83 }
84 free (list);
85 }
86
87 static int
icon_entry_cmp(const void * v1,const void * v2)88 icon_entry_cmp (const void *v1, const void *v2)
89 {
90 return strcmp (((XdgIcon *)v1)->mime_type, ((XdgIcon *)v2)->mime_type);
91 }
92
93 const char *
_xdg_mime_icon_list_lookup(XdgIconList * list,const char * mime_type)94 _xdg_mime_icon_list_lookup (XdgIconList *list,
95 const char *mime_type)
96 {
97 XdgIcon *entry;
98 XdgIcon key;
99
100 if (list->n_icons > 0)
101 {
102 key.mime_type = (char *)mime_type;
103 key.icon_name = NULL;
104
105 entry = bsearch (&key, list->icons, list->n_icons,
106 sizeof (XdgIcon), icon_entry_cmp);
107 if (entry)
108 return entry->icon_name;
109 }
110
111 return NULL;
112 }
113
114 void
_xdg_mime_icon_read_from_file(XdgIconList * list,const char * file_name)115 _xdg_mime_icon_read_from_file (XdgIconList *list,
116 const char *file_name)
117 {
118 FILE *file;
119 char line[255];
120 int alloc;
121
122 file = fopen (file_name, "r");
123
124 if (file == NULL)
125 return;
126
127 /* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars.
128 * Blah */
129 alloc = list->n_icons + 16;
130 list->icons = realloc (list->icons, alloc * sizeof (XdgIcon));
131 while (fgets (line, 255, file) != NULL)
132 {
133 char *sep;
134 if (line[0] == '#')
135 continue;
136
137 sep = strchr (line, ':');
138 if (sep == NULL)
139 continue;
140 *(sep++) = '\000';
141 sep[strlen (sep) -1] = '\000';
142 if (list->n_icons == alloc)
143 {
144 alloc <<= 1;
145 list->icons = realloc (list->icons,
146 alloc * sizeof (XdgIcon));
147 }
148 list->icons[list->n_icons].mime_type = strdup (line);
149 list->icons[list->n_icons].icon_name = strdup (sep);
150 list->n_icons++;
151 }
152 list->icons = realloc (list->icons,
153 list->n_icons * sizeof (XdgIcon));
154
155 fclose (file);
156
157 if (list->n_icons > 1)
158 qsort (list->icons, list->n_icons,
159 sizeof (XdgIcon), icon_entry_cmp);
160 }
161
162 #ifdef NOT_USED_IN_GIO
163
164 void
_xdg_mime_icon_list_dump(XdgIconList * list)165 _xdg_mime_icon_list_dump (XdgIconList *list)
166 {
167 int i;
168
169 if (list->icons)
170 {
171 for (i = 0; i < list->n_icons; i++)
172 {
173 printf ("%s %s\n",
174 list->icons[i].mime_type,
175 list->icons[i].icon_name);
176 }
177 }
178 }
179
180 #endif
181