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[glib.git] / gio / gdesktopappinfo.c
blobcde2d4a43528abc8b2575e0d56473a1b1e692776
1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 * Copyright © 2007 Ryan Lortie
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General
17 * Public License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
19 * Boston, MA 02111-1307, USA.
20 *
21 * Author: Alexander Larsson <alexl@redhat.com>
22 */
23
24 #include "config.h"
25
26 #include <errno.h>
27 #include <string.h>
28 #include <unistd.h>
29
30 #ifdef HAVE_CRT_EXTERNS_H
31 #include <crt_externs.h>
32 #endif
33
34 #include "gcontenttypeprivate.h"
35 #include "gdesktopappinfo.h"
36 #include "gfile.h"
37 #include "gioerror.h"
38 #include "gthemedicon.h"
39 #include "gfileicon.h"
40 #include <glib/gstdio.h>
41 #include "glibintl.h"
42 #include "giomodule-priv.h"
43 #include "gappinfo.h"
44
45
46 /**
47 * SECTION:gdesktopappinfo
48 * @title: GDesktopAppInfo
49 * @short_description: Application information from desktop files
50 * @include: gio/gdesktopappinfo.h
51 *
52 * #GDesktopAppInfo is an implementation of #GAppInfo based on
53 * desktop files.
54 *
55 * Note that <filename>&lt;gio/gdesktopappinfo.h&gt;</filename> belongs to
56 * the UNIX-specific GIO interfaces, thus you have to use the
57 * <filename>gio-unix-2.0.pc</filename> pkg-config file when using it.
58 */
59
60 #define DEFAULT_APPLICATIONS_GROUP "Default Applications"
61 #define ADDED_ASSOCIATIONS_GROUP "Added Associations"
62 #define REMOVED_ASSOCIATIONS_GROUP "Removed Associations"
63 #define MIME_CACHE_GROUP "MIME Cache"
64 #define GENERIC_NAME_KEY "GenericName"
65 #define FULL_NAME_KEY "X-GNOME-FullName"
66 #define KEYWORDS_KEY "Keywords"
67 #define STARTUP_WM_CLASS_KEY "StartupWMClass"
68
69 enum {
70 PROP_0,
71 PROP_FILENAME
72 };
73
74 static void g_desktop_app_info_iface_init (GAppInfoIface *iface);
75 static GList * get_all_desktop_entries_for_mime_type (const char *base_mime_type,
76 const char **except,
77 gboolean include_fallback,
78 char **explicit_default);
79 static void mime_info_cache_reload (const char *dir);
80 static gboolean g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
81 GError **error);
82
83 /**
84 * GDesktopAppInfo:
85 *
86 * Information about an installed application from a desktop file.
87 */
88 struct _GDesktopAppInfo
89 {
90 GObject parent_instance;
91
92 char *desktop_id;
93 char *filename;
94
95 char *name;
96 char *generic_name;
97 char *fullname;
98 char *comment;
99 char *icon_name;
100 GIcon *icon;
101 char **keywords;
102 char **only_show_in;
103 char **not_show_in;
104 char *try_exec;
105 char *exec;
106 char *binary;
107 char *path;
108 char *categories;
109 char *startup_wm_class;
110 char **mime_types;
111
112 guint nodisplay : 1;
113 guint hidden : 1;
114 guint terminal : 1;
115 guint startup_notify : 1;
116 guint no_fuse : 1;
117 };
118
119 typedef enum {
120 UPDATE_MIME_NONE = 1 << 0,
121 UPDATE_MIME_SET_DEFAULT = 1 << 1,
122 UPDATE_MIME_SET_NON_DEFAULT = 1 << 2,
123 UPDATE_MIME_REMOVE = 1 << 3,
124 UPDATE_MIME_SET_LAST_USED = 1 << 4,
125 } UpdateMimeFlags;
126
127 G_DEFINE_TYPE_WITH_CODE (GDesktopAppInfo, g_desktop_app_info, G_TYPE_OBJECT,
128 G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO,
129 g_desktop_app_info_iface_init))
130
131 G_LOCK_DEFINE_STATIC (g_desktop_env);
132 static gchar *g_desktop_env = NULL;
133
134 static gpointer
135 search_path_init (gpointer data)
136 {
137 char **args = NULL;
138 const char * const *data_dirs;
139 const char *user_data_dir;
140 int i, length, j;
141
142 data_dirs = g_get_system_data_dirs ();
143 length = g_strv_length ((char **) data_dirs);
144
145 args = g_new (char *, length + 2);
146
147 j = 0;
148 user_data_dir = g_get_user_data_dir ();
149 args[j++] = g_build_filename (user_data_dir, "applications", NULL);
150 for (i = 0; i < length; i++)
151 args[j++] = g_build_filename (data_dirs[i],
152 "applications", NULL);
153 args[j++] = NULL;
154
155 return args;
156 }
157
158 static const char * const *
159 get_applications_search_path (void)
160 {
161 static GOnce once_init = G_ONCE_INIT;
162 return g_once (&once_init, search_path_init, NULL);
163 }
164
165 static void
166 g_desktop_app_info_finalize (GObject *object)
167 {
168 GDesktopAppInfo *info;
169
170 info = G_DESKTOP_APP_INFO (object);
171
172 g_free (info->desktop_id);
173 g_free (info->filename);
174 g_free (info->name);
175 g_free (info->generic_name);
176 g_free (info->fullname);
177 g_free (info->comment);
178 g_free (info->icon_name);
179 if (info->icon)
180 g_object_unref (info->icon);
181 g_strfreev (info->keywords);
182 g_strfreev (info->only_show_in);
183 g_strfreev (info->not_show_in);
184 g_free (info->try_exec);
185 g_free (info->exec);
186 g_free (info->binary);
187 g_free (info->path);
188 g_free (info->categories);
189 g_free (info->startup_wm_class);
190 g_strfreev (info->mime_types);
191
192 G_OBJECT_CLASS (g_desktop_app_info_parent_class)->finalize (object);
193 }
194
195 static void
196 g_desktop_app_info_set_property(GObject *object,
197 guint prop_id,
198 const GValue *value,
199 GParamSpec *pspec)
200 {
201 GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object);
202
203 switch (prop_id)
204 {
205 case PROP_FILENAME:
206 self->filename = g_value_dup_string (value);
207 break;
208
209 default:
210 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
211 break;
212 }
213 }
214
215 static void
216 g_desktop_app_info_get_property(GObject *object,
217 guint prop_id,
218 GValue *value,
219 GParamSpec *pspec)
220 {
221 GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object);
222
223 switch (prop_id)
224 {
225 case PROP_FILENAME:
226 g_value_set_string (value, self->filename);
227 break;
228 default:
229 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
230 break;
231 }
232 }
233
234 static void
235 g_desktop_app_info_class_init (GDesktopAppInfoClass *klass)
236 {
237 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
238
239 gobject_class->get_property = g_desktop_app_info_get_property;
240 gobject_class->set_property = g_desktop_app_info_set_property;
241 gobject_class->finalize = g_desktop_app_info_finalize;
242
243 /**
244 * GDesktopAppInfo:filename:
245 *
246 * The origin filename of this #GDesktopAppInfo
247 */
248 g_object_class_install_property (gobject_class,
249 PROP_FILENAME,
250 g_param_spec_string ("filename", "Filename", "",
251 NULL,
252 G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
253 }
254
255 static void
256 g_desktop_app_info_init (GDesktopAppInfo *local)
257 {
258 }
259
260 static char *
261 binary_from_exec (const char *exec)
262 {
263 const char *p, *start;
264
265 p = exec;
266 while (*p == ' ')
267 p++;
268 start = p;
269 while (*p != ' ' && *p != 0)
270 p++;
271
272 return g_strndup (start, p - start);
273
274 }
275
276 static gboolean
277 g_desktop_app_info_load_from_keyfile (GDesktopAppInfo *info,
278 GKeyFile *key_file)
279 {
280 char *start_group;
281 char *type;
282 char *try_exec;
283
284 start_group = g_key_file_get_start_group (key_file);
285 if (start_group == NULL || strcmp (start_group, G_KEY_FILE_DESKTOP_GROUP) != 0)
286 {
287 g_free (start_group);
288 return FALSE;
289 }
290 g_free (start_group);
291
292 type = g_key_file_get_string (key_file,
293 G_KEY_FILE_DESKTOP_GROUP,
294 G_KEY_FILE_DESKTOP_KEY_TYPE,
295 NULL);
296 if (type == NULL || strcmp (type, G_KEY_FILE_DESKTOP_TYPE_APPLICATION) != 0)
297 {
298 g_free (type);
299 return FALSE;
300 }
301 g_free (type);
302
303 try_exec = g_key_file_get_string (key_file,
304 G_KEY_FILE_DESKTOP_GROUP,
305 G_KEY_FILE_DESKTOP_KEY_TRY_EXEC,
306 NULL);
307 if (try_exec && try_exec[0] != '\0')
308 {
309 char *t;
310 t = g_find_program_in_path (try_exec);
311 if (t == NULL)
312 {
313 g_free (try_exec);
314 return FALSE;
315 }
316 g_free (t);
317 }
318
319 info->name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NAME, NULL, NULL);
320 info->generic_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, GENERIC_NAME_KEY, NULL, NULL);
321 info->fullname = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, FULL_NAME_KEY, NULL, NULL);
322 info->keywords = g_key_file_get_locale_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, KEYWORDS_KEY, NULL, NULL, NULL);
323 info->comment = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_COMMENT, NULL, NULL);
324 info->nodisplay = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, NULL) != FALSE;
325 info->icon_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ICON, NULL, NULL);
326 info->only_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ONLY_SHOW_IN, NULL, NULL);
327 info->not_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NOT_SHOW_IN, NULL, NULL);
328 info->try_exec = try_exec;
329 info->exec = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_EXEC, NULL);
330 info->path = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_PATH, NULL);
331 info->terminal = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TERMINAL, NULL) != FALSE;
332 info->startup_notify = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_STARTUP_NOTIFY, NULL) != FALSE;
333 info->no_fuse = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, "X-GIO-NoFuse", NULL) != FALSE;
334 info->hidden = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_HIDDEN, NULL) != FALSE;
335 info->categories = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_CATEGORIES, NULL);
336 info->startup_wm_class = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, STARTUP_WM_CLASS_KEY, NULL);
337 info->mime_types = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_MIME_TYPE, NULL, NULL);
338
339 info->icon = NULL;
340 if (info->icon_name)
341 {
342 if (g_path_is_absolute (info->icon_name))
343 {
344 GFile *file;
345
346 file = g_file_new_for_path (info->icon_name);
347 info->icon = g_file_icon_new (file);
348 g_object_unref (file);
349 }
350 else
351 {
352 char *p;
353
354 /* Work around a common mistake in desktop files */
355 if ((p = strrchr (info->icon_name, '.')) != NULL &&
356 (strcmp (p, ".png") == 0 ||
357 strcmp (p, ".xpm") == 0 ||
358 strcmp (p, ".svg") == 0))
359 *p = 0;
360
361 info->icon = g_themed_icon_new (info->icon_name);
362 }
363 }
364
365 if (info->exec)
366 info->binary = binary_from_exec (info->exec);
367
368 if (info->path && info->path[0] == '\0')
369 {
370 g_free (info->path);
371 info->path = NULL;
372 }
373
374 return TRUE;
375 }
376
377 static gboolean
378 g_desktop_app_info_load_file (GDesktopAppInfo *self)
379 {
380 GKeyFile *key_file;
381 gboolean retval = FALSE;
382
383 g_return_val_if_fail (self->filename != NULL, FALSE);
384
385 key_file = g_key_file_new ();
386
387 if (g_key_file_load_from_file (key_file,
388 self->filename,
389 G_KEY_FILE_NONE,
390 NULL))
391 {
392 retval = g_desktop_app_info_load_from_keyfile (self, key_file);
393 }
394
395 g_key_file_free (key_file);
396 return retval;
397 }
398
399 /**
400 * g_desktop_app_info_new_from_keyfile:
401 * @key_file: an opened #GKeyFile
402 *
403 * Creates a new #GDesktopAppInfo.
404 *
405 * Returns: a new #GDesktopAppInfo or %NULL on error.
406 *
407 * Since: 2.18
408 **/
409 GDesktopAppInfo *
410 g_desktop_app_info_new_from_keyfile (GKeyFile *key_file)
411 {
412 GDesktopAppInfo *info;
413
414 info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
415 info->filename = NULL;
416 if (!g_desktop_app_info_load_from_keyfile (info, key_file))
417 {
418 g_object_unref (info);
419 return NULL;
420 }
421 return info;
422 }
423
424 /**
425 * g_desktop_app_info_new_from_filename:
426 * @filename: the path of a desktop file, in the GLib filename encoding
427 *
428 * Creates a new #GDesktopAppInfo.
429 *
430 * Returns: a new #GDesktopAppInfo or %NULL on error.
431 **/
432 GDesktopAppInfo *
433 g_desktop_app_info_new_from_filename (const char *filename)
434 {
435 GDesktopAppInfo *info = NULL;
436
437 info = g_object_new (G_TYPE_DESKTOP_APP_INFO, "filename", filename, NULL);
438 if (!g_desktop_app_info_load_file (info))
439 {
440 g_object_unref (info);
441 return NULL;
442 }
443 return info;
444 }
445
446 /**
447 * g_desktop_app_info_new:
448 * @desktop_id: the desktop file id
449 *
450 * Creates a new #GDesktopAppInfo based on a desktop file id.
451 *
452 * A desktop file id is the basename of the desktop file, including the
453 * .desktop extension. GIO is looking for a desktop file with this name
454 * in the <filename>applications</filename> subdirectories of the XDG data
455 * directories (i.e. the directories specified in the
456 * <envar>XDG_DATA_HOME</envar> and <envar>XDG_DATA_DIRS</envar> environment
457 * variables). GIO also supports the prefix-to-subdirectory mapping that is
458 * described in the <ulink url="http://standards.freedesktop.org/menu-spec/latest/">Menu Spec</ulink>
459 * (i.e. a desktop id of kde-foo.desktop will match
460 * <filename>/usr/share/applications/kde/foo.desktop</filename>).
461 *
462 * Returns: a new #GDesktopAppInfo, or %NULL if no desktop file with that id
463 */
464 GDesktopAppInfo *
465 g_desktop_app_info_new (const char *desktop_id)
466 {
467 GDesktopAppInfo *appinfo;
468 const char * const *dirs;
469 char *basename;
470 int i;
471
472 dirs = get_applications_search_path ();
473
474 basename = g_strdup (desktop_id);
475
476 for (i = 0; dirs[i] != NULL; i++)
477 {
478 char *filename;
479 char *p;
480
481 filename = g_build_filename (dirs[i], desktop_id, NULL);
482 appinfo = g_desktop_app_info_new_from_filename (filename);
483 g_free (filename);
484 if (appinfo != NULL)
485 goto found;
486
487 p = basename;
488 while ((p = strchr (p, '-')) != NULL)
489 {
490 *p = '/';
491
492 filename = g_build_filename (dirs[i], basename, NULL);
493 appinfo = g_desktop_app_info_new_from_filename (filename);
494 g_free (filename);
495 if (appinfo != NULL)
496 goto found;
497 *p = '-';
498 p++;
499 }
500 }
501
502 g_free (basename);
503 return NULL;
504
505 found:
506 g_free (basename);
507
508 appinfo->desktop_id = g_strdup (desktop_id);
509
510 if (g_desktop_app_info_get_is_hidden (appinfo))
511 {
512 g_object_unref (appinfo);
513 appinfo = NULL;
514 }
515
516 return appinfo;
517 }
518
519 static GAppInfo *
520 g_desktop_app_info_dup (GAppInfo *appinfo)
521 {
522 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
523 GDesktopAppInfo *new_info;
524
525 new_info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
526
527 new_info->filename = g_strdup (info->filename);
528 new_info->desktop_id = g_strdup (info->desktop_id);
529
530 new_info->name = g_strdup (info->name);
531 new_info->generic_name = g_strdup (info->generic_name);
532 new_info->fullname = g_strdup (info->fullname);
533 new_info->keywords = g_strdupv (info->keywords);
534 new_info->comment = g_strdup (info->comment);
535 new_info->nodisplay = info->nodisplay;
536 new_info->icon_name = g_strdup (info->icon_name);
537 if (info->icon)
538 new_info->icon = g_object_ref (info->icon);
539 new_info->only_show_in = g_strdupv (info->only_show_in);
540 new_info->not_show_in = g_strdupv (info->not_show_in);
541 new_info->try_exec = g_strdup (info->try_exec);
542 new_info->exec = g_strdup (info->exec);
543 new_info->binary = g_strdup (info->binary);
544 new_info->path = g_strdup (info->path);
545 new_info->hidden = info->hidden;
546 new_info->terminal = info->terminal;
547 new_info->startup_notify = info->startup_notify;
548
549 return G_APP_INFO (new_info);
550 }
551
552 static gboolean
553 g_desktop_app_info_equal (GAppInfo *appinfo1,
554 GAppInfo *appinfo2)
555 {
556 GDesktopAppInfo *info1 = G_DESKTOP_APP_INFO (appinfo1);
557 GDesktopAppInfo *info2 = G_DESKTOP_APP_INFO (appinfo2);
558
559 if (info1->desktop_id == NULL ||
560 info2->desktop_id == NULL)
561 return info1 == info2;
562
563 return strcmp (info1->desktop_id, info2->desktop_id) == 0;
564 }
565
566 static const char *
567 g_desktop_app_info_get_id (GAppInfo *appinfo)
568 {
569 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
570
571 return info->desktop_id;
572 }
573
574 static const char *
575 g_desktop_app_info_get_name (GAppInfo *appinfo)
576 {
577 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
578
579 if (info->name == NULL)
580 return _("Unnamed");
581 return info->name;
582 }
583
584 static const char *
585 g_desktop_app_info_get_display_name (GAppInfo *appinfo)
586 {
587 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
588
589 if (info->fullname == NULL)
590 return g_desktop_app_info_get_name (appinfo);
591 return info->fullname;
592 }
593
594 /**
595 * g_desktop_app_info_get_is_hidden:
596 * @info: a #GDesktopAppInfo.
597 *
598 * A desktop file is hidden if the Hidden key in it is
599 * set to True.
600 *
601 * Returns: %TRUE if hidden, %FALSE otherwise.
602 **/
603 gboolean
604 g_desktop_app_info_get_is_hidden (GDesktopAppInfo *info)
605 {
606 return info->hidden;
607 }
608
609 /**
610 * g_desktop_app_info_get_filename:
611 * @info: a #GDesktopAppInfo
612 *
613 * When @info was created from a known filename, return it. In some
614 * situations such as the #GDesktopAppInfo returned from
615 * g_desktop_app_info_new_from_keyfile(), this function will return %NULL.
616 *
617 * Returns: The full path to the file for @info, or %NULL if not known.
618 * Since: 2.24
619 */
620 const char *
621 g_desktop_app_info_get_filename (GDesktopAppInfo *info)
622 {
623 return info->filename;
624 }
625
626 static const char *
627 g_desktop_app_info_get_description (GAppInfo *appinfo)
628 {
629 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
630
631 return info->comment;
632 }
633
634 static const char *
635 g_desktop_app_info_get_executable (GAppInfo *appinfo)
636 {
637 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
638
639 return info->binary;
640 }
641
642 static const char *
643 g_desktop_app_info_get_commandline (GAppInfo *appinfo)
644 {
645 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
646
647 return info->exec;
648 }
649
650 static GIcon *
651 g_desktop_app_info_get_icon (GAppInfo *appinfo)
652 {
653 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
654
655 return info->icon;
656 }
657
658 /**
659 * g_desktop_app_info_get_categories:
660 * @info: a #GDesktopAppInfo
661 *
662 * Gets the categories from the desktop file.
663 *
664 * Returns: The unparsed Categories key from the desktop file;
665 * i.e. no attempt is made to split it by ';' or validate it.
666 */
667 const char *
668 g_desktop_app_info_get_categories (GDesktopAppInfo *info)
669 {
670 return info->categories;
671 }
672
673 /**
674 * g_desktop_app_info_get_keywords:
675 * @info: a #GDesktopAppInfo
676 *
677 * Gets the keywords from the desktop file.
678 *
679 * Returns: (transfer none): The value of the Keywords key
680 *
681 * Since: 2.32
682 */
683 const char * const *
684 g_desktop_app_info_get_keywords (GDesktopAppInfo *info)
685 {
686 return (const char * const *)info->keywords;
687 }
688
689 /**
690 * g_desktop_app_info_get_generic_name:
691 * @info: a #GDesktopAppInfo
692 *
693 * Gets the generic name from the destkop file.
694 *
695 * Returns: The value of the GenericName key
696 */
697 const char *
698 g_desktop_app_info_get_generic_name (GDesktopAppInfo *info)
699 {
700 return info->generic_name;
701 }
702
703 /**
704 * g_desktop_app_info_get_nodisplay:
705 * @info: a #GDesktopAppInfo
706 *
707 * Gets the value of the NoDisplay key, which helps determine if the
708 * application info should be shown in menus. See
709 * #G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY and g_app_info_should_show().
710 *
711 * Returns: The value of the NoDisplay key
712 *
713 * Since: 2.30
714 */
715 gboolean
716 g_desktop_app_info_get_nodisplay (GDesktopAppInfo *info)
717 {
718 return info->nodisplay;
719 }
720
721 /**
722 * g_desktop_app_info_get_show_in:
723 * @info: a #GDesktopAppInfo
724 * @desktop_env: a string specifying a desktop name
725 *
726 * Checks if the application info should be shown in menus that list available
727 * applications for a specific name of the desktop, based on the
728 * <literal>OnlyShowIn</literal> and <literal>NotShowIn</literal> keys.
729 *
730 * If @desktop_env is %NULL, then the name of the desktop set with
731 * g_desktop_app_info_set_desktop_env() is used.
732 *
733 * Note that g_app_info_should_show() for @info will include this check (with
734 * %NULL for @desktop_env) as well as additional checks.
735 *
736 * Returns: %TRUE if the @info should be shown in @desktop_env according to the
737 * <literal>OnlyShowIn</literal> and <literal>NotShowIn</literal> keys, %FALSE
738 * otherwise.
739 *
740 * Since: 2.30
741 */
742 gboolean
743 g_desktop_app_info_get_show_in (GDesktopAppInfo *info,
744 const gchar *desktop_env)
745 {
746 gboolean found;
747 int i;
748
749 g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
750
751 if (!desktop_env) {
752 G_LOCK (g_desktop_env);
753 desktop_env = g_desktop_env;
754 G_UNLOCK (g_desktop_env);
755 }
756
757 if (info->only_show_in)
758 {
759 if (desktop_env == NULL)
760 return FALSE;
761
762 found = FALSE;
763 for (i = 0; info->only_show_in[i] != NULL; i++)
764 {
765 if (strcmp (info->only_show_in[i], desktop_env) == 0)
766 {
767 found = TRUE;
768 break;
769 }
770 }
771 if (!found)
772 return FALSE;
773 }
774
775 if (info->not_show_in && desktop_env)
776 {
777 for (i = 0; info->not_show_in[i] != NULL; i++)
778 {
779 if (strcmp (info->not_show_in[i], desktop_env) == 0)
780 return FALSE;
781 }
782 }
783
784 return TRUE;
785 }
786
787 static char *
788 expand_macro_single (char macro, char *uri)
789 {
790 GFile *file;
791 char *result = NULL;
792 char *path, *name;
793
794 file = g_file_new_for_uri (uri);
795 path = g_file_get_path (file);
796 g_object_unref (file);
797
798 switch (macro)
799 {
800 case 'u':
801 case 'U':
802 result = g_shell_quote (uri);
803 break;
804 case 'f':
805 case 'F':
806 if (path)
807 result = g_shell_quote (path);
808 break;
809 case 'd':
810 case 'D':
811 if (path)
812 {
813 name = g_path_get_dirname (path);
814 result = g_shell_quote (name);
815 g_free (name);
816 }
817 break;
818 case 'n':
819 case 'N':
820 if (path)
821 {
822 name = g_path_get_basename (path);
823 result = g_shell_quote (name);
824 g_free (name);
825 }
826 break;
827 }
828
829 g_free (path);
830
831 return result;
832 }
833
834 static void
835 expand_macro (char macro,
836 GString *exec,
837 GDesktopAppInfo *info,
838 GList **uri_list)
839 {
840 GList *uris = *uri_list;
841 char *expanded;
842 gboolean force_file_uri;
843 char force_file_uri_macro;
844 char *uri;
845
846 g_return_if_fail (exec != NULL);
847
848 /* On %u and %U, pass POSIX file path pointing to the URI via
849 * the FUSE mount in ~/.gvfs. Note that if the FUSE daemon isn't
850 * running or the URI doesn't have a POSIX file path via FUSE
851 * we'll just pass the URI.
852 */
853 force_file_uri_macro = macro;
854 force_file_uri = FALSE;
855 if (!info->no_fuse)
856 {
857 switch (macro)
858 {
859 case 'u':
860 force_file_uri_macro = 'f';
861 force_file_uri = TRUE;
862 break;
863 case 'U':
864 force_file_uri_macro = 'F';
865 force_file_uri = TRUE;
866 break;
867 default:
868 break;
869 }
870 }
871
872 switch (macro)
873 {
874 case 'u':
875 case 'f':
876 case 'd':
877 case 'n':
878 if (uris)
879 {
880 uri = uris->data;
881 if (!force_file_uri ||
882 /* Pass URI if it contains an anchor */
883 strchr (uri, '#') != NULL)
884 {
885 expanded = expand_macro_single (macro, uri);
886 }
887 else
888 {
889 expanded = expand_macro_single (force_file_uri_macro, uri);
890 if (expanded == NULL)
891 expanded = expand_macro_single (macro, uri);
892 }
893
894 if (expanded)
895 {
896 g_string_append (exec, expanded);
897 g_free (expanded);
898 }
899 uris = uris->next;
900 }
901
902 break;
903
904 case 'U':
905 case 'F':
906 case 'D':
907 case 'N':
908 while (uris)
909 {
910 uri = uris->data;
911
912 if (!force_file_uri ||
913 /* Pass URI if it contains an anchor */
914 strchr (uri, '#') != NULL)
915 {
916 expanded = expand_macro_single (macro, uri);
917 }
918 else
919 {
920 expanded = expand_macro_single (force_file_uri_macro, uri);
921 if (expanded == NULL)
922 expanded = expand_macro_single (macro, uri);
923 }
924
925 if (expanded)
926 {
927 g_string_append (exec, expanded);
928 g_free (expanded);
929 }
930
931 uris = uris->next;
932
933 if (uris != NULL && expanded)
934 g_string_append_c (exec, ' ');
935 }
936
937 break;
938
939 case 'i':
940 if (info->icon_name)
941 {
942 g_string_append (exec, "--icon ");
943 expanded = g_shell_quote (info->icon_name);
944 g_string_append (exec, expanded);
945 g_free (expanded);
946 }
947 break;
948
949 case 'c':
950 if (info->name)
951 {
952 expanded = g_shell_quote (info->name);
953 g_string_append (exec, expanded);
954 g_free (expanded);
955 }
956 break;
957
958 case 'k':
959 if (info->filename)
960 {
961 expanded = g_shell_quote (info->filename);
962 g_string_append (exec, expanded);
963 g_free (expanded);
964 }
965 break;
966
967 case 'm': /* deprecated */
968 break;
969
970 case '%':
971 g_string_append_c (exec, '%');
972 break;
973 }
974
975 *uri_list = uris;
976 }
977
978 static gboolean
979 expand_application_parameters (GDesktopAppInfo *info,
980 GList **uris,
981 int *argc,
982 char ***argv,
983 GError **error)
984 {
985 GList *uri_list = *uris;
986 const char *p = info->exec;
987 GString *expanded_exec;
988 gboolean res;
989
990 if (info->exec == NULL)
991 {
992 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
993 _("Desktop file didn't specify Exec field"));
994 return FALSE;
995 }
996
997 expanded_exec = g_string_new (NULL);
998
999 while (*p)
1000 {
1001 if (p[0] == '%' && p[1] != '\0')
1002 {
1003 expand_macro (p[1], expanded_exec, info, uris);
1004 p++;
1005 }
1006 else
1007 g_string_append_c (expanded_exec, *p);
1008
1009 p++;
1010 }
1011
1012 /* No file substitutions */
1013 if (uri_list == *uris && uri_list != NULL)
1014 {
1015 /* If there is no macro default to %f. This is also what KDE does */
1016 g_string_append_c (expanded_exec, ' ');
1017 expand_macro ('f', expanded_exec, info, uris);
1018 }
1019
1020 res = g_shell_parse_argv (expanded_exec->str, argc, argv, error);
1021 g_string_free (expanded_exec, TRUE);
1022 return res;
1023 }
1024
1025 static gboolean
1026 prepend_terminal_to_vector (int *argc,
1027 char ***argv)
1028 {
1029 #ifndef G_OS_WIN32
1030 char **real_argv;
1031 int real_argc;
1032 int i, j;
1033 char **term_argv = NULL;
1034 int term_argc = 0;
1035 char *check;
1036 char **the_argv;
1037
1038 g_return_val_if_fail (argc != NULL, FALSE);
1039 g_return_val_if_fail (argv != NULL, FALSE);
1040
1041 /* sanity */
1042 if(*argv == NULL)
1043 *argc = 0;
1044
1045 the_argv = *argv;
1046
1047 /* compute size if not given */
1048 if (*argc < 0)
1049 {
1050 for (i = 0; the_argv[i] != NULL; i++)
1051 ;
1052 *argc = i;
1053 }
1054
1055 term_argc = 2;
1056 term_argv = g_new0 (char *, 3);
1057
1058 check = g_find_program_in_path ("gnome-terminal");
1059 if (check != NULL)
1060 {
1061 term_argv[0] = check;
1062 /* Note that gnome-terminal takes -x and
1063 * as -e in gnome-terminal is broken we use that. */
1064 term_argv[1] = g_strdup ("-x");
1065 }
1066 else
1067 {
1068 if (check == NULL)
1069 check = g_find_program_in_path ("nxterm");
1070 if (check == NULL)
1071 check = g_find_program_in_path ("color-xterm");
1072 if (check == NULL)
1073 check = g_find_program_in_path ("rxvt");
1074 if (check == NULL)
1075 check = g_find_program_in_path ("xterm");
1076 if (check == NULL)
1077 check = g_find_program_in_path ("dtterm");
1078 if (check == NULL)
1079 {
1080 check = g_strdup ("xterm");
1081 g_warning ("couldn't find a terminal, falling back to xterm");
1082 }
1083 term_argv[0] = check;
1084 term_argv[1] = g_strdup ("-e");
1085 }
1086
1087 real_argc = term_argc + *argc;
1088 real_argv = g_new (char *, real_argc + 1);
1089
1090 for (i = 0; i < term_argc; i++)
1091 real_argv[i] = term_argv[i];
1092
1093 for (j = 0; j < *argc; j++, i++)
1094 real_argv[i] = (char *)the_argv[j];
1095
1096 real_argv[i] = NULL;
1097
1098 g_free (*argv);
1099 *argv = real_argv;
1100 *argc = real_argc;
1101
1102 /* we use g_free here as we sucked all the inner strings
1103 * out from it into real_argv */
1104 g_free (term_argv);
1105 return TRUE;
1106 #else
1107 return FALSE;
1108 #endif /* G_OS_WIN32 */
1109 }
1110
1111 static GList *
1112 create_files_for_uris (GList *uris)
1113 {
1114 GList *res;
1115 GList *iter;
1116
1117 res = NULL;
1118
1119 for (iter = uris; iter; iter = iter->next)
1120 {
1121 GFile *file = g_file_new_for_uri ((char *)iter->data);
1122 res = g_list_prepend (res, file);
1123 }
1124
1125 return g_list_reverse (res);
1126 }
1127
1128 typedef struct
1129 {
1130 GSpawnChildSetupFunc user_setup;
1131 gpointer user_setup_data;
1132
1133 char *pid_envvar;
1134 } ChildSetupData;
1135
1136 static void
1137 child_setup (gpointer user_data)
1138 {
1139 ChildSetupData *data = user_data;
1140
1141 if (data->pid_envvar)
1142 {
1143 pid_t pid = getpid ();
1144 char buf[20];
1145 int i;
1146
1147 /* Write the pid into the space already reserved for it in the
1148 * environment array. We can't use sprintf because it might
1149 * malloc, so we do it by hand. It's simplest to write the pid
1150 * out backwards first, then copy it over.
1151 */
1152 for (i = 0; pid; i++, pid /= 10)
1153 buf[i] = (pid % 10) + '0';
1154 for (i--; i >= 0; i--)
1155 *(data->pid_envvar++) = buf[i];
1156 *data->pid_envvar = '\0';
1157 }
1158
1159 if (data->user_setup)
1160 data->user_setup (data->user_setup_data);
1161 }
1162
1163 static void
1164 notify_desktop_launch (GDBusConnection *session_bus,
1165 GDesktopAppInfo *info,
1166 long pid,
1167 const char *display,
1168 const char *sn_id,
1169 GList *uris)
1170 {
1171 GDBusMessage *msg;
1172 GVariantBuilder uri_variant;
1173 GVariantBuilder extras_variant;
1174 GList *iter;
1175 const char *desktop_file_id;
1176 const char *gio_desktop_file;
1177
1178 if (session_bus == NULL)
1179 return;
1180
1181 g_variant_builder_init (&uri_variant, G_VARIANT_TYPE ("as"));
1182 for (iter = uris; iter; iter = iter->next)
1183 g_variant_builder_add (&uri_variant, "s", iter->data);
1184
1185 g_variant_builder_init (&extras_variant, G_VARIANT_TYPE ("a{sv}"));
1186 if (sn_id != NULL && g_utf8_validate (sn_id, -1, NULL))
1187 g_variant_builder_add (&extras_variant, "{sv}",
1188 "startup-id",
1189 g_variant_new ("s",
1190 sn_id));
1191 gio_desktop_file = g_getenv ("GIO_LAUNCHED_DESKTOP_FILE");
1192 if (gio_desktop_file != NULL)
1193 g_variant_builder_add (&extras_variant, "{sv}",
1194 "origin-desktop-file",
1195 g_variant_new_bytestring (gio_desktop_file));
1196 if (g_get_prgname () != NULL)
1197 g_variant_builder_add (&extras_variant, "{sv}",
1198 "origin-prgname",
1199 g_variant_new_bytestring (g_get_prgname ()));
1200 g_variant_builder_add (&extras_variant, "{sv}",
1201 "origin-pid",
1202 g_variant_new ("x",
1203 (gint64)getpid ()));
1204
1205 if (info->filename)
1206 desktop_file_id = info->filename;
1207 else if (info->desktop_id)
1208 desktop_file_id = info->desktop_id;
1209 else
1210 desktop_file_id = "";
1211
1212 msg = g_dbus_message_new_signal ("/org/gtk/gio/DesktopAppInfo",
1213 "org.gtk.gio.DesktopAppInfo",
1214 "Launched");
1215 g_dbus_message_set_body (msg, g_variant_new ("(@aysxasa{sv})",
1216 g_variant_new_bytestring (desktop_file_id),
1217 display ? display : "",
1218 (gint64)pid,
1219 &uri_variant,
1220 &extras_variant));
1221 g_dbus_connection_send_message (session_bus,
1222 msg, 0,
1223 NULL,
1224 NULL);
1225 g_object_unref (msg);
1226 }
1227
1228 #define _SPAWN_FLAGS_DEFAULT (G_SPAWN_SEARCH_PATH)
1229
1230 static gboolean
1231 _g_desktop_app_info_launch_uris_internal (GAppInfo *appinfo,
1232 GList *uris,
1233 GAppLaunchContext *launch_context,
1234 GSpawnFlags spawn_flags,
1235 GSpawnChildSetupFunc user_setup,
1236 gpointer user_setup_data,
1237 GDesktopAppLaunchCallback pid_callback,
1238 gpointer pid_callback_data,
1239 GError **error)
1240 {
1241 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1242 GDBusConnection *session_bus;
1243 gboolean completed = FALSE;
1244 GList *old_uris;
1245 char **argv, **envp;
1246 int argc;
1247 ChildSetupData data;
1248
1249 g_return_val_if_fail (appinfo != NULL, FALSE);
1250
1251 argv = NULL;
1252
1253 session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
1254
1255 if (launch_context)
1256 envp = g_app_launch_context_get_environment (launch_context);
1257 else
1258 envp = g_get_environ ();
1259
1260 do
1261 {
1262 GPid pid;
1263 GList *launched_uris;
1264 GList *iter;
1265 char *display, *sn_id;
1266
1267 old_uris = uris;
1268 if (!expand_application_parameters (info, &uris,
1269 &argc, &argv, error))
1270 goto out;
1271
1272 /* Get the subset of URIs we're launching with this process */
1273 launched_uris = NULL;
1274 for (iter = old_uris; iter != NULL && iter != uris; iter = iter->next)
1275 launched_uris = g_list_prepend (launched_uris, iter->data);
1276 launched_uris = g_list_reverse (launched_uris);
1277
1278 if (info->terminal && !prepend_terminal_to_vector (&argc, &argv))
1279 {
1280 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
1281 _("Unable to find terminal required for application"));
1282 goto out;
1283 }
1284
1285 data.user_setup = user_setup;
1286 data.user_setup_data = user_setup_data;
1287
1288 if (info->filename)
1289 {
1290 envp = g_environ_setenv (envp,
1291 "GIO_LAUNCHED_DESKTOP_FILE",
1292 info->filename,
1293 TRUE);
1294 envp = g_environ_setenv (envp,
1295 "GIO_LAUNCHED_DESKTOP_FILE_PID",
1296 "XXXXXXXXXXXXXXXXXXXX", /* filled in child_setup */
1297 TRUE);
1298 data.pid_envvar = (char *)g_environ_getenv (envp, "GIO_LAUNCHED_DESKTOP_FILE_PID");
1299 }
1300 else
1301 {
1302 data.pid_envvar = NULL;
1303 }
1304
1305 display = NULL;
1306 sn_id = NULL;
1307 if (launch_context)
1308 {
1309 GList *launched_files = create_files_for_uris (launched_uris);
1310
1311 display = g_app_launch_context_get_display (launch_context,
1312 appinfo,
1313 launched_files);
1314 if (display)
1315 envp = g_environ_setenv (envp, "DISPLAY", display, TRUE);
1316
1317 if (info->startup_notify)
1318 {
1319 sn_id = g_app_launch_context_get_startup_notify_id (launch_context,
1320 appinfo,
1321 launched_files);
1322 envp = g_environ_setenv (envp, "DESKTOP_STARTUP_ID", sn_id, TRUE);
1323 }
1324
1325 g_list_free_full (launched_files, g_object_unref);
1326 }
1327
1328 if (!g_spawn_async (info->path,
1329 argv,
1330 envp,
1331 spawn_flags,
1332 child_setup,
1333 &data,
1334 &pid,
1335 error))
1336 {
1337 if (sn_id)
1338 g_app_launch_context_launch_failed (launch_context, sn_id);
1339
1340 g_free (display);
1341 g_free (sn_id);
1342 g_list_free (launched_uris);
1343
1344 goto out;
1345 }
1346
1347 if (pid_callback != NULL)
1348 pid_callback (info, pid, pid_callback_data);
1349
1350 notify_desktop_launch (session_bus,
1351 info,
1352 pid,
1353 display,
1354 sn_id,
1355 launched_uris);
1356
1357 g_free (display);
1358 g_free (sn_id);
1359 g_list_free (launched_uris);
1360
1361 g_strfreev (argv);
1362 argv = NULL;
1363 }
1364 while (uris != NULL);
1365
1366 /* TODO - need to handle the process exiting immediately
1367 * after launching an app. See http://bugzilla.gnome.org/606960
1368 */
1369 if (session_bus != NULL)
1370 {
1371 /* This asynchronous flush holds a reference until it completes,
1372 * which ensures that the following unref won't immediately kill
1373 * the connection if we were the initial owner.
1374 */
1375 g_dbus_connection_flush (session_bus, NULL, NULL, NULL);
1376 g_object_unref (session_bus);
1377 }
1378
1379 completed = TRUE;
1380
1381 out:
1382 g_strfreev (argv);
1383 g_strfreev (envp);
1384
1385 return completed;
1386 }
1387
1388 static gboolean
1389 g_desktop_app_info_launch_uris (GAppInfo *appinfo,
1390 GList *uris,
1391 GAppLaunchContext *launch_context,
1392 GError **error)
1393 {
1394 return _g_desktop_app_info_launch_uris_internal (appinfo, uris,
1395 launch_context,
1396 _SPAWN_FLAGS_DEFAULT,
1397 NULL, NULL, NULL, NULL,
1398 error);
1399 }
1400
1401 static gboolean
1402 g_desktop_app_info_supports_uris (GAppInfo *appinfo)
1403 {
1404 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1405
1406 return info->exec &&
1407 ((strstr (info->exec, "%u") != NULL) ||
1408 (strstr (info->exec, "%U") != NULL));
1409 }
1410
1411 static gboolean
1412 g_desktop_app_info_supports_files (GAppInfo *appinfo)
1413 {
1414 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1415
1416 return info->exec &&
1417 ((strstr (info->exec, "%f") != NULL) ||
1418 (strstr (info->exec, "%F") != NULL));
1419 }
1420
1421 static gboolean
1422 g_desktop_app_info_launch (GAppInfo *appinfo,
1423 GList *files,
1424 GAppLaunchContext *launch_context,
1425 GError **error)
1426 {
1427 GList *uris;
1428 char *uri;
1429 gboolean res;
1430
1431 uris = NULL;
1432 while (files)
1433 {
1434 uri = g_file_get_uri (files->data);
1435 uris = g_list_prepend (uris, uri);
1436 files = files->next;
1437 }
1438
1439 uris = g_list_reverse (uris);
1440
1441 res = g_desktop_app_info_launch_uris (appinfo, uris, launch_context, error);
1442
1443 g_list_free_full (uris, g_free);
1444
1445 return res;
1446 }
1447
1448 /**
1449 * g_desktop_app_info_launch_uris_as_manager:
1450 * @appinfo: a #GDesktopAppInfo
1451 * @uris: (element-type utf8): List of URIs
1452 * @launch_context: a #GAppLaunchContext
1453 * @spawn_flags: #GSpawnFlags, used for each process
1454 * @user_setup: (scope call): a #GSpawnChildSetupFunc, used once for
1455 * each process.
1456 * @user_setup_data: (closure user_setup): User data for @user_setup
1457 * @pid_callback: (scope call): Callback for child processes
1458 * @pid_callback_data: (closure pid_callback): User data for @callback
1459 * @error: return location for a #GError, or %NULL
1460 *
1461 * This function performs the equivalent of g_app_info_launch_uris(),
1462 * but is intended primarily for operating system components that
1463 * launch applications. Ordinary applications should use
1464 * g_app_info_launch_uris().
1465 *
1466 * In contrast to g_app_info_launch_uris(), all processes created will
1467 * always be run directly as children as if by the UNIX fork()/exec()
1468 * calls.
1469 *
1470 * This guarantee allows additional control over the exact environment
1471 * of the child processes, which is provided via a setup function
1472 * @user_setup, as well as the process identifier of each child process
1473 * via @pid_callback. See g_spawn_async() for more information about the
1474 * semantics of the @user_setup function.
1475 *
1476 * Returns: %TRUE on successful launch, %FALSE otherwise.
1477 */
1478 gboolean
1479 g_desktop_app_info_launch_uris_as_manager (GDesktopAppInfo *appinfo,
1480 GList *uris,
1481 GAppLaunchContext *launch_context,
1482 GSpawnFlags spawn_flags,
1483 GSpawnChildSetupFunc user_setup,
1484 gpointer user_setup_data,
1485 GDesktopAppLaunchCallback pid_callback,
1486 gpointer pid_callback_data,
1487 GError **error)
1488 {
1489 return _g_desktop_app_info_launch_uris_internal ((GAppInfo*)appinfo,
1490 uris,
1491 launch_context,
1492 spawn_flags,
1493 user_setup,
1494 user_setup_data,
1495 pid_callback,
1496 pid_callback_data,
1497 error);
1498 }
1499
1500 /**
1501 * g_desktop_app_info_set_desktop_env:
1502 * @desktop_env: a string specifying what desktop this is
1503 *
1504 * Sets the name of the desktop that the application is running in.
1505 * This is used by g_app_info_should_show() and
1506 * g_desktop_app_info_get_show_in() to evaluate the
1507 * <literal>OnlyShowIn</literal> and <literal>NotShowIn</literal>
1508 * desktop entry fields.
1509 *
1510 * The <ulink url="http://standards.freedesktop.org/menu-spec/latest/">Desktop
1511 * Menu specification</ulink> recognizes the following:
1512 * <simplelist>
1513 * <member>GNOME</member>
1514 * <member>KDE</member>
1515 * <member>ROX</member>
1516 * <member>XFCE</member>
1517 * <member>LXDE</member>
1518 * <member>Unity</member>
1519 * <member>Old</member>
1520 * </simplelist>
1521 *
1522 * Should be called only once; subsequent calls are ignored.
1523 */
1524 void
1525 g_desktop_app_info_set_desktop_env (const gchar *desktop_env)
1526 {
1527 G_LOCK (g_desktop_env);
1528 if (!g_desktop_env)
1529 g_desktop_env = g_strdup (desktop_env);
1530 G_UNLOCK (g_desktop_env);
1531 }
1532
1533 static gboolean
1534 g_desktop_app_info_should_show (GAppInfo *appinfo)
1535 {
1536 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1537
1538 if (info->nodisplay)
1539 return FALSE;
1540
1541 return g_desktop_app_info_get_show_in (info, NULL);
1542 }
1543
1544 typedef enum {
1545 APP_DIR,
1546 MIMETYPE_DIR
1547 } DirType;
1548
1549 static char *
1550 ensure_dir (DirType type,
1551 GError **error)
1552 {
1553 char *path, *display_name;
1554 int errsv;
1555
1556 if (type == APP_DIR)
1557 path = g_build_filename (g_get_user_data_dir (), "applications", NULL);
1558 else
1559 path = g_build_filename (g_get_user_data_dir (), "mime", "packages", NULL);
1560
1561 errno = 0;
1562 if (g_mkdir_with_parents (path, 0700) == 0)
1563 return path;
1564
1565 errsv = errno;
1566 display_name = g_filename_display_name (path);
1567 if (type == APP_DIR)
1568 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
1569 _("Can't create user application configuration folder %s: %s"),
1570 display_name, g_strerror (errsv));
1571 else
1572 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
1573 _("Can't create user MIME configuration folder %s: %s"),
1574 display_name, g_strerror (errsv));
1575
1576 g_free (display_name);
1577 g_free (path);
1578
1579 return NULL;
1580 }
1581
1582 static gboolean
1583 update_mimeapps_list (const char *desktop_id,
1584 const char *content_type,
1585 UpdateMimeFlags flags,
1586 GError **error)
1587 {
1588 char *dirname, *filename, *string;
1589 GKeyFile *key_file;
1590 gboolean load_succeeded, res;
1591 char **old_list, **list;
1592 gsize length, data_size;
1593 char *data;
1594 int i, j, k;
1595 char **content_types;
1596
1597 /* Don't add both at start and end */
1598 g_assert (!((flags & UPDATE_MIME_SET_DEFAULT) &&
1599 (flags & UPDATE_MIME_SET_NON_DEFAULT)));
1600
1601 dirname = ensure_dir (APP_DIR, error);
1602 if (!dirname)
1603 return FALSE;
1604
1605 filename = g_build_filename (dirname, "mimeapps.list", NULL);
1606 g_free (dirname);
1607
1608 key_file = g_key_file_new ();
1609 load_succeeded = g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL);
1610 if (!load_succeeded ||
1611 (!g_key_file_has_group (key_file, ADDED_ASSOCIATIONS_GROUP) &&
1612 !g_key_file_has_group (key_file, REMOVED_ASSOCIATIONS_GROUP) &&
1613 !g_key_file_has_group (key_file, DEFAULT_APPLICATIONS_GROUP)))
1614 {
1615 g_key_file_free (key_file);
1616 key_file = g_key_file_new ();
1617 }
1618
1619 if (content_type)
1620 {
1621 content_types = g_new (char *, 2);
1622 content_types[0] = g_strdup (content_type);
1623 content_types[1] = NULL;
1624 }
1625 else
1626 {
1627 content_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP, NULL, NULL);
1628 }
1629
1630 for (k = 0; content_types && content_types[k]; k++)
1631 {
1632 /* set as default, if requested so */
1633 string = g_key_file_get_string (key_file,
1634 DEFAULT_APPLICATIONS_GROUP,
1635 content_types[k],
1636 NULL);
1637
1638 if (g_strcmp0 (string, desktop_id) != 0 &&
1639 (flags & UPDATE_MIME_SET_DEFAULT))
1640 {
1641 g_free (string);
1642 string = g_strdup (desktop_id);
1643
1644 /* add in the non-default list too, if it's not already there */
1645 flags |= UPDATE_MIME_SET_NON_DEFAULT;
1646 }
1647
1648 if (string == NULL || desktop_id == NULL)
1649 g_key_file_remove_key (key_file,
1650 DEFAULT_APPLICATIONS_GROUP,
1651 content_types[k],
1652 NULL);
1653 else
1654 g_key_file_set_string (key_file,
1655 DEFAULT_APPLICATIONS_GROUP,
1656 content_types[k],
1657 string);
1658
1659 g_free (string);
1660 }
1661
1662 if (content_type)
1663 {
1664 /* reuse the list from above */
1665 }
1666 else
1667 {
1668 g_strfreev (content_types);
1669 content_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP, NULL, NULL);
1670 }
1671
1672 for (k = 0; content_types && content_types[k]; k++)
1673 {
1674 /* Add to the right place in the list */
1675
1676 length = 0;
1677 old_list = g_key_file_get_string_list (key_file, ADDED_ASSOCIATIONS_GROUP,
1678 content_types[k], &length, NULL);
1679
1680 list = g_new (char *, 1 + length + 1);
1681
1682 i = 0;
1683
1684 /* if we're adding a last-used hint, just put the application in front of the list */
1685 if (flags & UPDATE_MIME_SET_LAST_USED)
1686 {
1687 /* avoid adding this again as non-default later */
1688 if (flags & UPDATE_MIME_SET_NON_DEFAULT)
1689 flags ^= UPDATE_MIME_SET_NON_DEFAULT;
1690
1691 list[i++] = g_strdup (desktop_id);
1692 }
1693
1694 if (old_list)
1695 {
1696 for (j = 0; old_list[j] != NULL; j++)
1697 {
1698 if (g_strcmp0 (old_list[j], desktop_id) != 0)
1699 {
1700 /* rewrite other entries if they're different from the new one */
1701 list[i++] = g_strdup (old_list[j]);
1702 }
1703 else if (flags & UPDATE_MIME_SET_NON_DEFAULT)
1704 {
1705 /* we encountered an old entry which is equal to the one we're adding as non-default,
1706 * don't change its position in the list.
1707 */
1708 flags ^= UPDATE_MIME_SET_NON_DEFAULT;
1709 list[i++] = g_strdup (old_list[j]);
1710 }
1711 }
1712 }
1713
1714 /* add it at the end of the list */
1715 if (flags & UPDATE_MIME_SET_NON_DEFAULT)
1716 list[i++] = g_strdup (desktop_id);
1717
1718 list[i] = NULL;
1719
1720 g_strfreev (old_list);
1721
1722 if (list[0] == NULL || desktop_id == NULL)
1723 g_key_file_remove_key (key_file,
1724 ADDED_ASSOCIATIONS_GROUP,
1725 content_types[k],
1726 NULL);
1727 else
1728 g_key_file_set_string_list (key_file,
1729 ADDED_ASSOCIATIONS_GROUP,
1730 content_types[k],
1731 (const char * const *)list, i);
1732
1733 g_strfreev (list);
1734 }
1735
1736 if (content_type)
1737 {
1738 /* reuse the list from above */
1739 }
1740 else
1741 {
1742 g_strfreev (content_types);
1743 content_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL);
1744 }
1745
1746 for (k = 0; content_types && content_types[k]; k++)
1747 {
1748 /* Remove from removed associations group (unless remove) */
1749
1750 length = 0;
1751 old_list = g_key_file_get_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP,
1752 content_types[k], &length, NULL);
1753
1754 list = g_new (char *, 1 + length + 1);
1755
1756 i = 0;
1757 if (flags & UPDATE_MIME_REMOVE)
1758 list[i++] = g_strdup (desktop_id);
1759 if (old_list)
1760 {
1761 for (j = 0; old_list[j] != NULL; j++)
1762 {
1763 if (g_strcmp0 (old_list[j], desktop_id) != 0)
1764 list[i++] = g_strdup (old_list[j]);
1765 }
1766 }
1767 list[i] = NULL;
1768
1769 g_strfreev (old_list);
1770
1771 if (list[0] == NULL || desktop_id == NULL)
1772 g_key_file_remove_key (key_file,
1773 REMOVED_ASSOCIATIONS_GROUP,
1774 content_types[k],
1775 NULL);
1776 else
1777 g_key_file_set_string_list (key_file,
1778 REMOVED_ASSOCIATIONS_GROUP,
1779 content_types[k],
1780 (const char * const *)list, i);
1781
1782 g_strfreev (list);
1783 }
1784
1785 g_strfreev (content_types);
1786
1787 data = g_key_file_to_data (key_file, &data_size, error);
1788 g_key_file_free (key_file);
1789
1790 res = g_file_set_contents (filename, data, data_size, error);
1791
1792 mime_info_cache_reload (NULL);
1793
1794 g_free (filename);
1795 g_free (data);
1796
1797 return res;
1798 }
1799
1800 static gboolean
1801 g_desktop_app_info_set_as_last_used_for_type (GAppInfo *appinfo,
1802 const char *content_type,
1803 GError **error)
1804 {
1805 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1806
1807 if (!g_desktop_app_info_ensure_saved (info, error))
1808 return FALSE;
1809
1810 if (!info->desktop_id)
1811 {
1812 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
1813 _("Application information lacks an identifier"));
1814 return FALSE;
1815 }
1816
1817 /* both add support for the content type and set as last used */
1818 return update_mimeapps_list (info->desktop_id, content_type,
1819 UPDATE_MIME_SET_NON_DEFAULT |
1820 UPDATE_MIME_SET_LAST_USED,
1821 error);
1822 }
1823
1824 static gboolean
1825 g_desktop_app_info_set_as_default_for_type (GAppInfo *appinfo,
1826 const char *content_type,
1827 GError **error)
1828 {
1829 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1830
1831 if (!g_desktop_app_info_ensure_saved (info, error))
1832 return FALSE;
1833
1834 if (!info->desktop_id)
1835 {
1836 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
1837 _("Application information lacks an identifier"));
1838 return FALSE;
1839 }
1840
1841 return update_mimeapps_list (info->desktop_id, content_type,
1842 UPDATE_MIME_SET_DEFAULT,
1843 error);
1844 }
1845
1846 static void
1847 update_program_done (GPid pid,
1848 gint status,
1849 gpointer data)
1850 {
1851 /* Did the application exit correctly */
1852 if (g_spawn_check_exit_status (status, NULL))
1853 {
1854 /* Here we could clean out any caches in use */
1855 }
1856 }
1857
1858 static void
1859 run_update_command (char *command,
1860 char *subdir)
1861 {
1862 char *argv[3] = {
1863 NULL,
1864 NULL,
1865 NULL,
1866 };
1867 GPid pid = 0;
1868 GError *error = NULL;
1869
1870 argv[0] = command;
1871 argv[1] = g_build_filename (g_get_user_data_dir (), subdir, NULL);
1872
1873 if (g_spawn_async ("/", argv,
1874 NULL, /* envp */
1875 G_SPAWN_SEARCH_PATH |
1876 G_SPAWN_STDOUT_TO_DEV_NULL |
1877 G_SPAWN_STDERR_TO_DEV_NULL |
1878 G_SPAWN_DO_NOT_REAP_CHILD,
1879 NULL, NULL, /* No setup function */
1880 &pid,
1881 &error))
1882 g_child_watch_add (pid, update_program_done, NULL);
1883 else
1884 {
1885 /* If we get an error at this point, it's quite likely the user doesn't
1886 * have an installed copy of either 'update-mime-database' or
1887 * 'update-desktop-database'. I don't think we want to popup an error
1888 * dialog at this point, so we just do a g_warning to give the user a
1889 * chance of debugging it.
1890 */
1891 g_warning ("%s", error->message);
1892 }
1893
1894 g_free (argv[1]);
1895 }
1896
1897 static gboolean
1898 g_desktop_app_info_set_as_default_for_extension (GAppInfo *appinfo,
1899 const char *extension,
1900 GError **error)
1901 {
1902 char *filename, *basename, *mimetype;
1903 char *dirname;
1904 gboolean res;
1905
1906 if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (appinfo), error))
1907 return FALSE;
1908
1909 dirname = ensure_dir (MIMETYPE_DIR, error);
1910 if (!dirname)
1911 return FALSE;
1912
1913 basename = g_strdup_printf ("user-extension-%s.xml", extension);
1914 filename = g_build_filename (dirname, basename, NULL);
1915 g_free (basename);
1916 g_free (dirname);
1917
1918 mimetype = g_strdup_printf ("application/x-extension-%s", extension);
1919
1920 if (!g_file_test (filename, G_FILE_TEST_EXISTS))
1921 {
1922 char *contents;
1923
1924 contents =
1925 g_strdup_printf ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1926 "<mime-info xmlns=\"http://www.freedesktop.org/standards/shared-mime-info\">\n"
1927 " <mime-type type=\"%s\">\n"
1928 " <comment>%s document</comment>\n"
1929 " <glob pattern=\"*.%s\"/>\n"
1930 " </mime-type>\n"
1931 "</mime-info>\n", mimetype, extension, extension);
1932
1933 g_file_set_contents (filename, contents, -1, NULL);
1934 g_free (contents);
1935
1936 run_update_command ("update-mime-database", "mime");
1937 }
1938 g_free (filename);
1939
1940 res = g_desktop_app_info_set_as_default_for_type (appinfo,
1941 mimetype,
1942 error);
1943
1944 g_free (mimetype);
1945
1946 return res;
1947 }
1948
1949 static gboolean
1950 g_desktop_app_info_add_supports_type (GAppInfo *appinfo,
1951 const char *content_type,
1952 GError **error)
1953 {
1954 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1955
1956 if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error))
1957 return FALSE;
1958
1959 return update_mimeapps_list (info->desktop_id, content_type,
1960 UPDATE_MIME_SET_NON_DEFAULT,
1961 error);
1962 }
1963
1964 static gboolean
1965 g_desktop_app_info_can_remove_supports_type (GAppInfo *appinfo)
1966 {
1967 return TRUE;
1968 }
1969
1970 static gboolean
1971 g_desktop_app_info_remove_supports_type (GAppInfo *appinfo,
1972 const char *content_type,
1973 GError **error)
1974 {
1975 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1976
1977 if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error))
1978 return FALSE;
1979
1980 return update_mimeapps_list (info->desktop_id, content_type,
1981 UPDATE_MIME_REMOVE,
1982 error);
1983 }
1984
1985 static const char **
1986 g_desktop_app_info_get_supported_types (GAppInfo *appinfo)
1987 {
1988 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
1989
1990 return (const char**) info->mime_types;
1991 }
1992
1993
1994 static gboolean
1995 g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
1996 GError **error)
1997 {
1998 GKeyFile *key_file;
1999 char *dirname;
2000 char *filename;
2001 char *data, *desktop_id;
2002 gsize data_size;
2003 int fd;
2004 gboolean res;
2005
2006 if (info->filename != NULL)
2007 return TRUE;
2008
2009 /* This is only used for object created with
2010 * g_app_info_create_from_commandline. All other
2011 * object should have a filename
2012 */
2013
2014 dirname = ensure_dir (APP_DIR, error);
2015 if (!dirname)
2016 return FALSE;
2017
2018 key_file = g_key_file_new ();
2019
2020 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2021 "Encoding", "UTF-8");
2022 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2023 G_KEY_FILE_DESKTOP_KEY_VERSION, "1.0");
2024 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2025 G_KEY_FILE_DESKTOP_KEY_TYPE,
2026 G_KEY_FILE_DESKTOP_TYPE_APPLICATION);
2027 if (info->terminal)
2028 g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
2029 G_KEY_FILE_DESKTOP_KEY_TERMINAL, TRUE);
2030 if (info->nodisplay)
2031 g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
2032 G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE);
2033
2034 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2035 G_KEY_FILE_DESKTOP_KEY_EXEC, info->exec);
2036
2037 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2038 G_KEY_FILE_DESKTOP_KEY_NAME, info->name);
2039
2040 if (info->generic_name != NULL)
2041 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2042 GENERIC_NAME_KEY, info->generic_name);
2043
2044 if (info->fullname != NULL)
2045 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2046 FULL_NAME_KEY, info->fullname);
2047
2048 g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
2049 G_KEY_FILE_DESKTOP_KEY_COMMENT, info->comment);
2050
2051 g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
2052 G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE);
2053
2054 data = g_key_file_to_data (key_file, &data_size, NULL);
2055 g_key_file_free (key_file);
2056
2057 desktop_id = g_strdup_printf ("userapp-%s-XXXXXX.desktop", info->name);
2058 filename = g_build_filename (dirname, desktop_id, NULL);
2059 g_free (desktop_id);
2060 g_free (dirname);
2061
2062 fd = g_mkstemp (filename);
2063 if (fd == -1)
2064 {
2065 char *display_name;
2066
2067 display_name = g_filename_display_name (filename);
2068 g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
2069 _("Can't create user desktop file %s"), display_name);
2070 g_free (display_name);
2071 g_free (filename);
2072 g_free (data);
2073 return FALSE;
2074 }
2075
2076 desktop_id = g_path_get_basename (filename);
2077
2078 close (fd);
2079
2080 res = g_file_set_contents (filename, data, data_size, error);
2081 if (!res)
2082 {
2083 g_free (desktop_id);
2084 g_free (filename);
2085 return FALSE;
2086 }
2087
2088 info->filename = filename;
2089 info->desktop_id = desktop_id;
2090
2091 run_update_command ("update-desktop-database", "applications");
2092
2093 return TRUE;
2094 }
2095
2096 static gboolean
2097 g_desktop_app_info_can_delete (GAppInfo *appinfo)
2098 {
2099 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
2100
2101 if (info->filename)
2102 {
2103 if (strstr (info->filename, "/userapp-"))
2104 return g_access (info->filename, W_OK) == 0;
2105 }
2106
2107 return FALSE;
2108 }
2109
2110 static gboolean
2111 g_desktop_app_info_delete (GAppInfo *appinfo)
2112 {
2113 GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
2114
2115 if (info->filename)
2116 {
2117 if (g_remove (info->filename) == 0)
2118 {
2119 update_mimeapps_list (info->desktop_id, NULL,
2120 UPDATE_MIME_NONE,
2121 NULL);
2122
2123 g_free (info->filename);
2124 info->filename = NULL;
2125 g_free (info->desktop_id);
2126 info->desktop_id = NULL;
2127
2128 return TRUE;
2129 }
2130 }
2131
2132 return FALSE;
2133 }
2134
2135 /**
2136 * g_app_info_create_from_commandline:
2137 * @commandline: the commandline to use
2138 * @application_name: (allow-none): the application name, or %NULL to use @commandline
2139 * @flags: flags that can specify details of the created #GAppInfo
2140 * @error: a #GError location to store the error occurring, %NULL to ignore.
2141 *
2142 * Creates a new #GAppInfo from the given information.
2143 *
2144 * Note that for @commandline, the quoting rules of the Exec key of the
2145 * <ulink url="http://freedesktop.org/Standards/desktop-entry-spec">freedesktop.org Desktop
2146 * Entry Specification</ulink> are applied. For example, if the @commandline contains
2147 * percent-encoded URIs, the percent-character must be doubled in order to prevent it from
2148 * being swallowed by Exec key unquoting. See the specification for exact quoting rules.
2149 *
2150 * Returns: (transfer full): new #GAppInfo for given command.
2151 **/
2152 GAppInfo *
2153 g_app_info_create_from_commandline (const char *commandline,
2154 const char *application_name,
2155 GAppInfoCreateFlags flags,
2156 GError **error)
2157 {
2158 char **split;
2159 char *basename;
2160 GDesktopAppInfo *info;
2161
2162 g_return_val_if_fail (commandline, NULL);
2163
2164 info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
2165
2166 info->filename = NULL;
2167 info->desktop_id = NULL;
2168
2169 info->terminal = (flags & G_APP_INFO_CREATE_NEEDS_TERMINAL) != 0;
2170 info->startup_notify = (flags & G_APP_INFO_CREATE_SUPPORTS_STARTUP_NOTIFICATION) != 0;
2171 info->hidden = FALSE;
2172 if ((flags & G_APP_INFO_CREATE_SUPPORTS_URIS) != 0)
2173 info->exec = g_strconcat (commandline, " %u", NULL);
2174 else
2175 info->exec = g_strconcat (commandline, " %f", NULL);
2176 info->nodisplay = TRUE;
2177 info->binary = binary_from_exec (info->exec);
2178
2179 if (application_name)
2180 info->name = g_strdup (application_name);
2181 else
2182 {
2183 /* FIXME: this should be more robust. Maybe g_shell_parse_argv and use argv[0] */
2184 split = g_strsplit (commandline, " ", 2);
2185 basename = split[0] ? g_path_get_basename (split[0]) : NULL;
2186 g_strfreev (split);
2187 info->name = basename;
2188 if (info->name == NULL)
2189 info->name = g_strdup ("custom");
2190 }
2191 info->comment = g_strdup_printf (_("Custom definition for %s"), info->name);
2192
2193 return G_APP_INFO (info);
2194 }
2195
2196 static void
2197 g_desktop_app_info_iface_init (GAppInfoIface *iface)
2198 {
2199 iface->dup = g_desktop_app_info_dup;
2200 iface->equal = g_desktop_app_info_equal;
2201 iface->get_id = g_desktop_app_info_get_id;
2202 iface->get_name = g_desktop_app_info_get_name;
2203 iface->get_description = g_desktop_app_info_get_description;
2204 iface->get_executable = g_desktop_app_info_get_executable;
2205 iface->get_icon = g_desktop_app_info_get_icon;
2206 iface->launch = g_desktop_app_info_launch;
2207 iface->supports_uris = g_desktop_app_info_supports_uris;
2208 iface->supports_files = g_desktop_app_info_supports_files;
2209 iface->launch_uris = g_desktop_app_info_launch_uris;
2210 iface->should_show = g_desktop_app_info_should_show;
2211 iface->set_as_default_for_type = g_desktop_app_info_set_as_default_for_type;
2212 iface->set_as_default_for_extension = g_desktop_app_info_set_as_default_for_extension;
2213 iface->add_supports_type = g_desktop_app_info_add_supports_type;
2214 iface->can_remove_supports_type = g_desktop_app_info_can_remove_supports_type;
2215 iface->remove_supports_type = g_desktop_app_info_remove_supports_type;
2216 iface->can_delete = g_desktop_app_info_can_delete;
2217 iface->do_delete = g_desktop_app_info_delete;
2218 iface->get_commandline = g_desktop_app_info_get_commandline;
2219 iface->get_display_name = g_desktop_app_info_get_display_name;
2220 iface->set_as_last_used_for_type = g_desktop_app_info_set_as_last_used_for_type;
2221 iface->get_supported_types = g_desktop_app_info_get_supported_types;
2222 }
2223
2224 static gboolean
2225 app_info_in_list (GAppInfo *info,
2226 GList *list)
2227 {
2228 while (list != NULL)
2229 {
2230 if (g_app_info_equal (info, list->data))
2231 return TRUE;
2232 list = list->next;
2233 }
2234 return FALSE;
2235 }
2236
2237 /**
2238 * g_app_info_get_recommended_for_type:
2239 * @content_type: the content type to find a #GAppInfo for
2240 *
2241 * Gets a list of recommended #GAppInfos for a given content type, i.e.
2242 * those applications which claim to support the given content type exactly,
2243 * and not by MIME type subclassing.
2244 * Note that the first application of the list is the last used one, i.e.
2245 * the last one for which g_app_info_set_as_last_used_for_type() has been
2246 * called.
2247 *
2248 * Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
2249 * for given @content_type or %NULL on error.
2250 *
2251 * Since: 2.28
2252 **/
2253 GList *
2254 g_app_info_get_recommended_for_type (const gchar *content_type)
2255 {
2256 GList *desktop_entries, *l;
2257 GList *infos;
2258 GDesktopAppInfo *info;
2259
2260 g_return_val_if_fail (content_type != NULL, NULL);
2261
2262 desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, FALSE, NULL);
2263
2264 infos = NULL;
2265 for (l = desktop_entries; l != NULL; l = l->next)
2266 {
2267 char *desktop_entry = l->data;
2268
2269 info = g_desktop_app_info_new (desktop_entry);
2270 if (info)
2271 {
2272 if (app_info_in_list (G_APP_INFO (info), infos))
2273 g_object_unref (info);
2274 else
2275 infos = g_list_prepend (infos, info);
2276 }
2277 g_free (desktop_entry);
2278 }
2279
2280 g_list_free (desktop_entries);
2281
2282 return g_list_reverse (infos);
2283 }
2284
2285 /**
2286 * g_app_info_get_fallback_for_type:
2287 * @content_type: the content type to find a #GAppInfo for
2288 *
2289 * Gets a list of fallback #GAppInfos for a given content type, i.e.
2290 * those applications which claim to support the given content type
2291 * by MIME type subclassing and not directly.
2292 *
2293 * Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
2294 * for given @content_type or %NULL on error.
2295 *
2296 * Since: 2.28
2297 **/
2298 GList *
2299 g_app_info_get_fallback_for_type (const gchar *content_type)
2300 {
2301 GList *desktop_entries, *l;
2302 GList *infos, *recommended_infos;
2303 GDesktopAppInfo *info;
2304
2305 g_return_val_if_fail (content_type != NULL, NULL);
2306
2307 desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE, NULL);
2308 recommended_infos = g_app_info_get_recommended_for_type (content_type);
2309
2310 infos = NULL;
2311 for (l = desktop_entries; l != NULL; l = l->next)
2312 {
2313 char *desktop_entry = l->data;
2314
2315 info = g_desktop_app_info_new (desktop_entry);
2316 if (info)
2317 {
2318 if (app_info_in_list (G_APP_INFO (info), infos) ||
2319 app_info_in_list (G_APP_INFO (info), recommended_infos))
2320 g_object_unref (info);
2321 else
2322 infos = g_list_prepend (infos, info);
2323 }
2324 g_free (desktop_entry);
2325 }
2326
2327 g_list_free (desktop_entries);
2328 g_list_free_full (recommended_infos, g_object_unref);
2329
2330 return g_list_reverse (infos);
2331 }
2332
2333 /**
2334 * g_app_info_get_all_for_type:
2335 * @content_type: the content type to find a #GAppInfo for
2336 *
2337 * Gets a list of all #GAppInfos for a given content type,
2338 * including the recommended and fallback #GAppInfos. See
2339 * g_app_info_get_recommended_for_type() and
2340 * g_app_info_get_fallback_for_type().
2341 *
2342 * Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
2343 * for given @content_type or %NULL on error.
2344 **/
2345 GList *
2346 g_app_info_get_all_for_type (const char *content_type)
2347 {
2348 GList *desktop_entries, *l;
2349 GList *infos;
2350 char *user_default = NULL;
2351 GDesktopAppInfo *info;
2352
2353 g_return_val_if_fail (content_type != NULL, NULL);
2354
2355 desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE, &user_default);
2356 infos = NULL;
2357
2358 /* put the user default in front of the list, for compatibility */
2359 if (user_default != NULL)
2360 {
2361 info = g_desktop_app_info_new (user_default);
2362
2363 if (info != NULL)
2364 infos = g_list_prepend (infos, info);
2365 }
2366
2367 g_free (user_default);
2368
2369 for (l = desktop_entries; l != NULL; l = l->next)
2370 {
2371 char *desktop_entry = l->data;
2372
2373 info = g_desktop_app_info_new (desktop_entry);
2374 if (info)
2375 {
2376 if (app_info_in_list (G_APP_INFO (info), infos))
2377 g_object_unref (info);
2378 else
2379 infos = g_list_prepend (infos, info);
2380 }
2381 g_free (desktop_entry);
2382 }
2383
2384 g_list_free (desktop_entries);
2385
2386 return g_list_reverse (infos);
2387 }
2388
2389 /**
2390 * g_app_info_reset_type_associations:
2391 * @content_type: a content type
2392 *
2393 * Removes all changes to the type associations done by
2394 * g_app_info_set_as_default_for_type(),
2395 * g_app_info_set_as_default_for_extension(),
2396 * g_app_info_add_supports_type() or
2397 * g_app_info_remove_supports_type().
2398 *
2399 * Since: 2.20
2400 */
2401 void
2402 g_app_info_reset_type_associations (const char *content_type)
2403 {
2404 update_mimeapps_list (NULL, content_type,
2405 UPDATE_MIME_NONE,
2406 NULL);
2407 }
2408
2409 /**
2410 * g_app_info_get_default_for_type:
2411 * @content_type: the content type to find a #GAppInfo for
2412 * @must_support_uris: if %TRUE, the #GAppInfo is expected to
2413 * support URIs
2414 *
2415 * Gets the default #GAppInfo for a given content type.
2416 *
2417 * Returns: (transfer full): #GAppInfo for given @content_type or
2418 * %NULL on error.
2419 */
2420 GAppInfo *
2421 g_app_info_get_default_for_type (const char *content_type,
2422 gboolean must_support_uris)
2423 {
2424 GList *desktop_entries, *l;
2425 char *user_default = NULL;
2426 GAppInfo *info;
2427
2428 g_return_val_if_fail (content_type != NULL, NULL);
2429
2430 desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE, &user_default);
2431
2432 info = NULL;
2433
2434 if (user_default != NULL)
2435 {
2436 info = (GAppInfo *) g_desktop_app_info_new (user_default);
2437
2438 if (info)
2439 {
2440 if (must_support_uris && !g_app_info_supports_uris (info))
2441 {
2442 g_object_unref (info);
2443 info = NULL;
2444 }
2445 }
2446 }
2447
2448 g_free (user_default);
2449
2450 if (info != NULL)
2451 {
2452 g_list_free_full (desktop_entries, g_free);
2453 return info;
2454 }
2455
2456 /* pick the first from the other list that matches our URI
2457 * requirements.
2458 */
2459 for (l = desktop_entries; l != NULL; l = l->next)
2460 {
2461 char *desktop_entry = l->data;
2462
2463 info = (GAppInfo *)g_desktop_app_info_new (desktop_entry);
2464 if (info)
2465 {
2466 if (must_support_uris && !g_app_info_supports_uris (info))
2467 {
2468 g_object_unref (info);
2469 info = NULL;
2470 }
2471 else
2472 break;
2473 }
2474 }
2475
2476 g_list_free_full (desktop_entries, g_free);
2477
2478 return info;
2479 }
2480
2481 /**
2482 * g_app_info_get_default_for_uri_scheme:
2483 * @uri_scheme: a string containing a URI scheme.
2484 *
2485 * Gets the default application for handling URIs with
2486 * the given URI scheme. A URI scheme is the initial part
2487 * of the URI, up to but not including the ':', e.g. "http",
2488 * "ftp" or "sip".
2489 *
2490 * Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error.
2491 */
2492 GAppInfo *
2493 g_app_info_get_default_for_uri_scheme (const char *uri_scheme)
2494 {
2495 GAppInfo *app_info;
2496 char *content_type, *scheme_down;
2497
2498 scheme_down = g_ascii_strdown (uri_scheme, -1);
2499 content_type = g_strdup_printf ("x-scheme-handler/%s", scheme_down);
2500 g_free (scheme_down);
2501 app_info = g_app_info_get_default_for_type (content_type, FALSE);
2502 g_free (content_type);
2503
2504 return app_info;
2505 }
2506
2507 static void
2508 get_apps_from_dir (GHashTable *apps,
2509 const char *dirname,
2510 const char *prefix)
2511 {
2512 GDir *dir;
2513 const char *basename;
2514 char *filename, *subprefix, *desktop_id;
2515 gboolean hidden;
2516 GDesktopAppInfo *appinfo;
2517
2518 dir = g_dir_open (dirname, 0, NULL);
2519 if (dir)
2520 {
2521 while ((basename = g_dir_read_name (dir)) != NULL)
2522 {
2523 filename = g_build_filename (dirname, basename, NULL);
2524 if (g_str_has_suffix (basename, ".desktop"))
2525 {
2526 desktop_id = g_strconcat (prefix, basename, NULL);
2527
2528 /* Use _extended so we catch NULLs too (hidden) */
2529 if (!g_hash_table_lookup_extended (apps, desktop_id, NULL, NULL))
2530 {
2531 appinfo = g_desktop_app_info_new_from_filename (filename);
2532 hidden = FALSE;
2533
2534 if (appinfo && g_desktop_app_info_get_is_hidden (appinfo))
2535 {
2536 g_object_unref (appinfo);
2537 appinfo = NULL;
2538 hidden = TRUE;
2539 }
2540
2541 if (appinfo || hidden)
2542 {
2543 g_hash_table_insert (apps, g_strdup (desktop_id), appinfo);
2544
2545 if (appinfo)
2546 {
2547 /* Reuse instead of strdup here */
2548 appinfo->desktop_id = desktop_id;
2549 desktop_id = NULL;
2550 }
2551 }
2552 }
2553 g_free (desktop_id);
2554 }
2555 else
2556 {
2557 if (g_file_test (filename, G_FILE_TEST_IS_DIR))
2558 {
2559 subprefix = g_strconcat (prefix, basename, "-", NULL);
2560 get_apps_from_dir (apps, filename, subprefix);
2561 g_free (subprefix);
2562 }
2563 }
2564 g_free (filename);
2565 }
2566 g_dir_close (dir);
2567 }
2568 }
2569
2570
2571 /**
2572 * g_app_info_get_all:
2573 *
2574 * Gets a list of all of the applications currently registered
2575 * on this system.
2576 *
2577 * For desktop files, this includes applications that have
2578 * <literal>NoDisplay=true</literal> set or are excluded from
2579 * display by means of <literal>OnlyShowIn</literal> or
2580 * <literal>NotShowIn</literal>. See g_app_info_should_show().
2581 * The returned list does not include applications which have
2582 * the <literal>Hidden</literal> key set.
2583 *
2584 * Returns: (element-type GAppInfo) (transfer full): a newly allocated #GList of references to #GAppInfo<!---->s.
2585 **/
2586 GList *
2587 g_app_info_get_all (void)
2588 {
2589 const char * const *dirs;
2590 GHashTable *apps;
2591 GHashTableIter iter;
2592 gpointer value;
2593 int i;
2594 GList *infos;
2595
2596 dirs = get_applications_search_path ();
2597
2598 apps = g_hash_table_new_full (g_str_hash, g_str_equal,
2599 g_free, NULL);
2600
2601
2602 for (i = 0; dirs[i] != NULL; i++)
2603 get_apps_from_dir (apps, dirs[i], "");
2604
2605
2606 infos = NULL;
2607 g_hash_table_iter_init (&iter, apps);
2608 while (g_hash_table_iter_next (&iter, NULL, &value))
2609 {
2610 if (value)
2611 infos = g_list_prepend (infos, value);
2612 }
2613
2614 g_hash_table_destroy (apps);
2615
2616 return g_list_reverse (infos);
2617 }
2618
2619 /* Cacheing of mimeinfo.cache and defaults.list files */
2620
2621 typedef struct {
2622 char *path;
2623 GHashTable *mime_info_cache_map;
2624 GHashTable *defaults_list_map;
2625 GHashTable *mimeapps_list_added_map;
2626 GHashTable *mimeapps_list_removed_map;
2627 GHashTable *mimeapps_list_defaults_map;
2628 time_t mime_info_cache_timestamp;
2629 time_t defaults_list_timestamp;
2630 time_t mimeapps_list_timestamp;
2631 } MimeInfoCacheDir;
2632
2633 typedef struct {
2634 GList *dirs; /* mimeinfo.cache and defaults.list */
2635 GHashTable *global_defaults_cache; /* global results of defaults.list lookup and validation */
2636 time_t last_stat_time;
2637 guint should_ping_mime_monitor : 1;
2638 } MimeInfoCache;
2639
2640 static MimeInfoCache *mime_info_cache = NULL;
2641 G_LOCK_DEFINE_STATIC (mime_info_cache);
2642
2643 static void mime_info_cache_dir_add_desktop_entries (MimeInfoCacheDir *dir,
2644 const char *mime_type,
2645 char **new_desktop_file_ids);
2646
2647 static MimeInfoCache * mime_info_cache_new (void);
2648
2649 static void
2650 destroy_info_cache_value (gpointer key,
2651 GList *value,
2652 gpointer data)
2653 {
2654 g_list_free_full (value, g_free);
2655 }
2656
2657 static void
2658 destroy_info_cache_map (GHashTable *info_cache_map)
2659 {
2660 g_hash_table_foreach (info_cache_map, (GHFunc)destroy_info_cache_value, NULL);
2661 g_hash_table_destroy (info_cache_map);
2662 }
2663
2664 static gboolean
2665 mime_info_cache_dir_out_of_date (MimeInfoCacheDir *dir,
2666 const char *cache_file,
2667 time_t *timestamp)
2668 {
2669 struct stat buf;
2670 char *filename;
2671
2672 filename = g_build_filename (dir->path, cache_file, NULL);
2673
2674 if (g_stat (filename, &buf) < 0)
2675 {
2676 g_free (filename);
2677 return TRUE;
2678 }
2679 g_free (filename);
2680
2681 if (buf.st_mtime != *timestamp)
2682 return TRUE;
2683
2684 return FALSE;
2685 }
2686
2687 /* Call with lock held */
2688 static gboolean
2689 remove_all (gpointer key,
2690 gpointer value,
2691 gpointer user_data)
2692 {
2693 return TRUE;
2694 }
2695
2696
2697 static void
2698 mime_info_cache_blow_global_cache (void)
2699 {
2700 g_hash_table_foreach_remove (mime_info_cache->global_defaults_cache,
2701 remove_all, NULL);
2702 }
2703
2704 static void
2705 mime_info_cache_dir_init (MimeInfoCacheDir *dir)
2706 {
2707 GError *load_error;
2708 GKeyFile *key_file;
2709 gchar *filename, **mime_types;
2710 int i;
2711 struct stat buf;
2712
2713 load_error = NULL;
2714 mime_types = NULL;
2715
2716 if (dir->mime_info_cache_map != NULL &&
2717 !mime_info_cache_dir_out_of_date (dir, "mimeinfo.cache",
2718 &dir->mime_info_cache_timestamp))
2719 return;
2720
2721 if (dir->mime_info_cache_map != NULL)
2722 destroy_info_cache_map (dir->mime_info_cache_map);
2723
2724 dir->mime_info_cache_map = g_hash_table_new_full (g_str_hash, g_str_equal,
2725 (GDestroyNotify) g_free,
2726 NULL);
2727
2728 key_file = g_key_file_new ();
2729
2730 filename = g_build_filename (dir->path, "mimeinfo.cache", NULL);
2731
2732 if (g_stat (filename, &buf) < 0)
2733 goto error;
2734
2735 if (dir->mime_info_cache_timestamp > 0)
2736 mime_info_cache->should_ping_mime_monitor = TRUE;
2737
2738 dir->mime_info_cache_timestamp = buf.st_mtime;
2739
2740 g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error);
2741
2742 g_free (filename);
2743 filename = NULL;
2744
2745 if (load_error != NULL)
2746 goto error;
2747
2748 mime_types = g_key_file_get_keys (key_file, MIME_CACHE_GROUP,
2749 NULL, &load_error);
2750
2751 if (load_error != NULL)
2752 goto error;
2753
2754 for (i = 0; mime_types[i] != NULL; i++)
2755 {
2756 gchar **desktop_file_ids;
2757 char *unaliased_type;
2758 desktop_file_ids = g_key_file_get_string_list (key_file,
2759 MIME_CACHE_GROUP,
2760 mime_types[i],
2761 NULL,
2762 NULL);
2763
2764 if (desktop_file_ids == NULL)
2765 continue;
2766
2767 unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
2768 mime_info_cache_dir_add_desktop_entries (dir,
2769 unaliased_type,
2770 desktop_file_ids);
2771 g_free (unaliased_type);
2772
2773 g_strfreev (desktop_file_ids);
2774 }
2775
2776 g_strfreev (mime_types);
2777 g_key_file_free (key_file);
2778
2779 return;
2780 error:
2781 g_free (filename);
2782 g_key_file_free (key_file);
2783
2784 if (mime_types != NULL)
2785 g_strfreev (mime_types);
2786
2787 if (load_error)
2788 g_error_free (load_error);
2789 }
2790
2791 static void
2792 mime_info_cache_dir_init_defaults_list (MimeInfoCacheDir *dir)
2793 {
2794 GKeyFile *key_file;
2795 GError *load_error;
2796 gchar *filename, **mime_types;
2797 char *unaliased_type;
2798 char **desktop_file_ids;
2799 int i;
2800 struct stat buf;
2801
2802 load_error = NULL;
2803 mime_types = NULL;
2804
2805 if (dir->defaults_list_map != NULL &&
2806 !mime_info_cache_dir_out_of_date (dir, "defaults.list",
2807 &dir->defaults_list_timestamp))
2808 return;
2809
2810 if (dir->defaults_list_map != NULL)
2811 g_hash_table_destroy (dir->defaults_list_map);
2812 dir->defaults_list_map = g_hash_table_new_full (g_str_hash, g_str_equal,
2813 g_free, (GDestroyNotify)g_strfreev);
2814
2815
2816 key_file = g_key_file_new ();
2817
2818 filename = g_build_filename (dir->path, "defaults.list", NULL);
2819 if (g_stat (filename, &buf) < 0)
2820 goto error;
2821
2822 if (dir->defaults_list_timestamp > 0)
2823 mime_info_cache->should_ping_mime_monitor = TRUE;
2824
2825 dir->defaults_list_timestamp = buf.st_mtime;
2826
2827 g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error);
2828 g_free (filename);
2829 filename = NULL;
2830
2831 if (load_error != NULL)
2832 goto error;
2833
2834 mime_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP,
2835 NULL, NULL);
2836 if (mime_types != NULL)
2837 {
2838 for (i = 0; mime_types[i] != NULL; i++)
2839 {
2840 desktop_file_ids = g_key_file_get_string_list (key_file,
2841 DEFAULT_APPLICATIONS_GROUP,
2842 mime_types[i],
2843 NULL,
2844 NULL);
2845 if (desktop_file_ids == NULL)
2846 continue;
2847
2848 unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
2849 g_hash_table_replace (dir->defaults_list_map,
2850 unaliased_type,
2851 desktop_file_ids);
2852 }
2853
2854 g_strfreev (mime_types);
2855 }
2856
2857 g_key_file_free (key_file);
2858 return;
2859
2860 error:
2861 g_free (filename);
2862 g_key_file_free (key_file);
2863
2864 if (mime_types != NULL)
2865 g_strfreev (mime_types);
2866
2867 if (load_error)
2868 g_error_free (load_error);
2869 }
2870
2871 static void
2872 mime_info_cache_dir_init_mimeapps_list (MimeInfoCacheDir *dir)
2873 {
2874 GKeyFile *key_file;
2875 GError *load_error;
2876 gchar *filename, **mime_types;
2877 char *unaliased_type;
2878 char **desktop_file_ids;
2879 char *desktop_id;
2880 int i;
2881 struct stat buf;
2882
2883 load_error = NULL;
2884 mime_types = NULL;
2885
2886 if (dir->mimeapps_list_added_map != NULL &&
2887 !mime_info_cache_dir_out_of_date (dir, "mimeapps.list",
2888 &dir->mimeapps_list_timestamp))
2889 return;
2890
2891 if (dir->mimeapps_list_added_map != NULL)
2892 g_hash_table_destroy (dir->mimeapps_list_added_map);
2893 dir->mimeapps_list_added_map = g_hash_table_new_full (g_str_hash, g_str_equal,
2894 g_free, (GDestroyNotify)g_strfreev);
2895
2896 if (dir->mimeapps_list_removed_map != NULL)
2897 g_hash_table_destroy (dir->mimeapps_list_removed_map);
2898 dir->mimeapps_list_removed_map = g_hash_table_new_full (g_str_hash, g_str_equal,
2899 g_free, (GDestroyNotify)g_strfreev);
2900
2901 if (dir->mimeapps_list_defaults_map != NULL)
2902 g_hash_table_destroy (dir->mimeapps_list_defaults_map);
2903 dir->mimeapps_list_defaults_map = g_hash_table_new_full (g_str_hash, g_str_equal,
2904 g_free, g_free);
2905
2906 key_file = g_key_file_new ();
2907
2908 filename = g_build_filename (dir->path, "mimeapps.list", NULL);
2909 if (g_stat (filename, &buf) < 0)
2910 goto error;
2911
2912 if (dir->mimeapps_list_timestamp > 0)
2913 mime_info_cache->should_ping_mime_monitor = TRUE;
2914
2915 dir->mimeapps_list_timestamp = buf.st_mtime;
2916
2917 g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error);
2918 g_free (filename);
2919 filename = NULL;
2920
2921 if (load_error != NULL)
2922 goto error;
2923
2924 mime_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP,
2925 NULL, NULL);
2926 if (mime_types != NULL)
2927 {
2928 for (i = 0; mime_types[i] != NULL; i++)
2929 {
2930 desktop_file_ids = g_key_file_get_string_list (key_file,
2931 ADDED_ASSOCIATIONS_GROUP,
2932 mime_types[i],
2933 NULL,
2934 NULL);
2935 if (desktop_file_ids == NULL)
2936 continue;
2937
2938 unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
2939 g_hash_table_replace (dir->mimeapps_list_added_map,
2940 unaliased_type,
2941 desktop_file_ids);
2942 }
2943
2944 g_strfreev (mime_types);
2945 }
2946
2947 mime_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP,
2948 NULL, NULL);
2949 if (mime_types != NULL)
2950 {
2951 for (i = 0; mime_types[i] != NULL; i++)
2952 {
2953 desktop_file_ids = g_key_file_get_string_list (key_file,
2954 REMOVED_ASSOCIATIONS_GROUP,
2955 mime_types[i],
2956 NULL,
2957 NULL);
2958 if (desktop_file_ids == NULL)
2959 continue;
2960
2961 unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
2962 g_hash_table_replace (dir->mimeapps_list_removed_map,
2963 unaliased_type,
2964 desktop_file_ids);
2965 }
2966
2967 g_strfreev (mime_types);
2968 }
2969
2970 mime_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP,
2971 NULL, NULL);
2972 if (mime_types != NULL)
2973 {
2974 for (i = 0; mime_types[i] != NULL; i++)
2975 {
2976 desktop_id = g_key_file_get_string (key_file,
2977 DEFAULT_APPLICATIONS_GROUP,
2978 mime_types[i],
2979 NULL);
2980 if (desktop_id == NULL)
2981 continue;
2982
2983 unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
2984 g_hash_table_replace (dir->mimeapps_list_defaults_map,
2985 unaliased_type,
2986 desktop_id);
2987 }
2988
2989 g_strfreev (mime_types);
2990 }
2991
2992 g_key_file_free (key_file);
2993 return;
2994
2995 error:
2996 g_free (filename);
2997 g_key_file_free (key_file);
2998
2999 if (mime_types != NULL)
3000 g_strfreev (mime_types);
3001
3002 if (load_error)
3003 g_error_free (load_error);
3004 }
3005
3006 static MimeInfoCacheDir *
3007 mime_info_cache_dir_new (const char *path)
3008 {
3009 MimeInfoCacheDir *dir;
3010
3011 dir = g_new0 (MimeInfoCacheDir, 1);
3012 dir->path = g_strdup (path);
3013
3014 return dir;
3015 }
3016
3017 static void
3018 mime_info_cache_dir_free (MimeInfoCacheDir *dir)
3019 {
3020 if (dir == NULL)
3021 return;
3022
3023 if (dir->mime_info_cache_map != NULL)
3024 {
3025 destroy_info_cache_map (dir->mime_info_cache_map);
3026 dir->mime_info_cache_map = NULL;
3027
3028 }
3029
3030 if (dir->defaults_list_map != NULL)
3031 {
3032 g_hash_table_destroy (dir->defaults_list_map);
3033 dir->defaults_list_map = NULL;
3034 }
3035
3036 if (dir->mimeapps_list_added_map != NULL)
3037 {
3038 g_hash_table_destroy (dir->mimeapps_list_added_map);
3039 dir->mimeapps_list_added_map = NULL;
3040 }
3041
3042 if (dir->mimeapps_list_removed_map != NULL)
3043 {
3044 g_hash_table_destroy (dir->mimeapps_list_removed_map);
3045 dir->mimeapps_list_removed_map = NULL;
3046 }
3047
3048 if (dir->mimeapps_list_defaults_map != NULL)
3049 {
3050 g_hash_table_destroy (dir->mimeapps_list_defaults_map);
3051 dir->mimeapps_list_defaults_map = NULL;
3052 }
3053
3054 g_free (dir);
3055 }
3056
3057 static void
3058 mime_info_cache_dir_add_desktop_entries (MimeInfoCacheDir *dir,
3059 const char *mime_type,
3060 char **new_desktop_file_ids)
3061 {
3062 GList *desktop_file_ids;
3063 int i;
3064
3065 desktop_file_ids = g_hash_table_lookup (dir->mime_info_cache_map,
3066 mime_type);
3067
3068 for (i = 0; new_desktop_file_ids[i] != NULL; i++)
3069 {
3070 if (!g_list_find_custom (desktop_file_ids, new_desktop_file_ids[i], (GCompareFunc) strcmp))
3071 desktop_file_ids = g_list_append (desktop_file_ids,
3072 g_strdup (new_desktop_file_ids[i]));
3073 }
3074
3075 g_hash_table_insert (dir->mime_info_cache_map, g_strdup (mime_type), desktop_file_ids);
3076 }
3077
3078 static void
3079 mime_info_cache_init_dir_lists (void)
3080 {
3081 const char * const *dirs;
3082 int i;
3083
3084 mime_info_cache = mime_info_cache_new ();
3085
3086 dirs = get_applications_search_path ();
3087
3088 for (i = 0; dirs[i] != NULL; i++)
3089 {
3090 MimeInfoCacheDir *dir;
3091
3092 dir = mime_info_cache_dir_new (dirs[i]);
3093
3094 if (dir != NULL)
3095 {
3096 mime_info_cache_dir_init (dir);
3097 mime_info_cache_dir_init_defaults_list (dir);
3098 mime_info_cache_dir_init_mimeapps_list (dir);
3099
3100 mime_info_cache->dirs = g_list_append (mime_info_cache->dirs, dir);
3101 }
3102 }
3103 }
3104
3105 static void
3106 mime_info_cache_update_dir_lists (void)
3107 {
3108 GList *tmp;
3109
3110 tmp = mime_info_cache->dirs;
3111
3112 while (tmp != NULL)
3113 {
3114 MimeInfoCacheDir *dir = (MimeInfoCacheDir *) tmp->data;
3115
3116 /* No need to do this if we had file monitors... */
3117 mime_info_cache_blow_global_cache ();
3118 mime_info_cache_dir_init (dir);
3119 mime_info_cache_dir_init_defaults_list (dir);
3120 mime_info_cache_dir_init_mimeapps_list (dir);
3121
3122 tmp = tmp->next;
3123 }
3124 }
3125
3126 static void
3127 mime_info_cache_init (void)
3128 {
3129 G_LOCK (mime_info_cache);
3130 if (mime_info_cache == NULL)
3131 mime_info_cache_init_dir_lists ();
3132 else
3133 {
3134 time_t now;
3135
3136 time (&now);
3137 if (now >= mime_info_cache->last_stat_time + 10)
3138 {
3139 mime_info_cache_update_dir_lists ();
3140 mime_info_cache->last_stat_time = now;
3141 }
3142 }
3143
3144 if (mime_info_cache->should_ping_mime_monitor)
3145 {
3146 /* g_idle_add (emit_mime_changed, NULL); */
3147 mime_info_cache->should_ping_mime_monitor = FALSE;
3148 }
3149
3150 G_UNLOCK (mime_info_cache);
3151 }
3152
3153 static MimeInfoCache *
3154 mime_info_cache_new (void)
3155 {
3156 MimeInfoCache *cache;
3157
3158 cache = g_new0 (MimeInfoCache, 1);
3159
3160 cache->global_defaults_cache = g_hash_table_new_full (g_str_hash, g_str_equal,
3161 (GDestroyNotify) g_free,
3162 (GDestroyNotify) g_free);
3163 return cache;
3164 }
3165
3166 static void
3167 mime_info_cache_free (MimeInfoCache *cache)
3168 {
3169 if (cache == NULL)
3170 return;
3171
3172 g_list_free_full (cache->dirs, (GDestroyNotify) mime_info_cache_dir_free);
3173 g_hash_table_destroy (cache->global_defaults_cache);
3174 g_free (cache);
3175 }
3176
3177 /**
3178 * mime_info_cache_reload:
3179 * @dir: directory path which needs reloading.
3180 *
3181 * Reload the mime information for the @dir.
3182 */
3183 static void
3184 mime_info_cache_reload (const char *dir)
3185 {
3186 /* FIXME: just reload the dir that needs reloading,
3187 * don't blow the whole cache
3188 */
3189 if (mime_info_cache != NULL)
3190 {
3191 G_LOCK (mime_info_cache);
3192 mime_info_cache_free (mime_info_cache);
3193 mime_info_cache = NULL;
3194 G_UNLOCK (mime_info_cache);
3195 }
3196 }
3197
3198 static GList *
3199 append_desktop_entry (GList *list,
3200 const char *desktop_entry,
3201 GList *removed_entries)
3202 {
3203 /* Add if not already in list, and valid */
3204 if (!g_list_find_custom (list, desktop_entry, (GCompareFunc) strcmp) &&
3205 !g_list_find_custom (removed_entries, desktop_entry, (GCompareFunc) strcmp))
3206 list = g_list_prepend (list, g_strdup (desktop_entry));
3207
3208 return list;
3209 }
3210
3211 /**
3212 * get_all_desktop_entries_for_mime_type:
3213 * @mime_type: a mime type.
3214 * @except: NULL or a strv list
3215 *
3216 * Returns all the desktop ids for @mime_type. The desktop files
3217 * are listed in an order so that default applications are listed before
3218 * non-default ones, and handlers for inherited mimetypes are listed
3219 * after the base ones.
3220 *
3221 * Optionally doesn't list the desktop ids given in the @except
3222 *
3223 * Return value: a #GList containing the desktop ids which claim
3224 * to handle @mime_type.
3225 */
3226 static GList *
3227 get_all_desktop_entries_for_mime_type (const char *base_mime_type,
3228 const char **except,
3229 gboolean include_fallback,
3230 char **explicit_default)
3231 {
3232 GList *desktop_entries, *removed_entries, *list, *dir_list, *tmp;
3233 MimeInfoCacheDir *dir;
3234 char *mime_type, *default_entry = NULL;
3235 char *old_default_entry = NULL;
3236 const char *entry;
3237 char **mime_types;
3238 char **default_entries;
3239 char **removed_associations;
3240 gboolean already_found_handler;
3241 int i, j, k;
3242 GPtrArray *array;
3243 char **anc;
3244
3245 mime_info_cache_init ();
3246
3247 if (include_fallback)
3248 {
3249 /* collect all ancestors */
3250 mime_types = _g_unix_content_type_get_parents (base_mime_type);
3251 array = g_ptr_array_new ();
3252 for (i = 0; mime_types[i]; i++)
3253 g_ptr_array_add (array, mime_types[i]);
3254 g_free (mime_types);
3255 for (i = 0; i < array->len; i++)
3256 {
3257 anc = _g_unix_content_type_get_parents (g_ptr_array_index (array, i));
3258 for (j = 0; anc[j]; j++)
3259 {
3260 for (k = 0; k < array->len; k++)
3261 {
3262 if (strcmp (anc[j], g_ptr_array_index (array, k)) == 0)
3263 break;
3264 }
3265 if (k == array->len) /* not found */
3266 g_ptr_array_add (array, g_strdup (anc[j]));
3267 }
3268 g_strfreev (anc);
3269 }
3270 g_ptr_array_add (array, NULL);
3271 mime_types = (char **)g_ptr_array_free (array, FALSE);
3272 }
3273 else
3274 {
3275 mime_types = g_malloc0 (2 * sizeof (gchar *));
3276 mime_types[0] = g_strdup (base_mime_type);
3277 mime_types[1] = NULL;
3278 }
3279
3280 G_LOCK (mime_info_cache);
3281
3282 removed_entries = NULL;
3283 desktop_entries = NULL;
3284
3285 for (i = 0; except != NULL && except[i] != NULL; i++)
3286 removed_entries = g_list_prepend (removed_entries, g_strdup (except[i]));
3287
3288 for (i = 0; mime_types[i] != NULL; i++)
3289 {
3290 mime_type = mime_types[i];
3291
3292 /* This is true if we already found a handler for a more specific
3293 mimetype. If its set we ignore any defaults for the less specific
3294 mimetypes. */
3295 already_found_handler = (desktop_entries != NULL);
3296
3297 /* Go through all apps listed in user and system dirs */
3298 for (dir_list = mime_info_cache->dirs;
3299 dir_list != NULL;
3300 dir_list = dir_list->next)
3301 {
3302 dir = dir_list->data;
3303
3304 /* Pick the explicit default application if we got no result earlier
3305 * (ie, for more specific mime types)
3306 */
3307 if (!already_found_handler)
3308 {
3309 entry = g_hash_table_lookup (dir->mimeapps_list_defaults_map, mime_type);
3310
3311 if (entry != NULL)
3312 {
3313 /* Save the default entry if it's the first one we encounter */
3314 if (default_entry == NULL)
3315 default_entry = g_strdup (entry);
3316 }
3317 }
3318
3319 /* Then added associations from mimeapps.list */
3320 default_entries = g_hash_table_lookup (dir->mimeapps_list_added_map, mime_type);
3321 for (j = 0; default_entries != NULL && default_entries[j] != NULL; j++)
3322 desktop_entries = append_desktop_entry (desktop_entries, default_entries[j], removed_entries);
3323
3324 /* Then removed associations from mimeapps.list */
3325 removed_associations = g_hash_table_lookup (dir->mimeapps_list_removed_map, mime_type);
3326 for (j = 0; removed_associations != NULL && removed_associations[j] != NULL; j++)
3327 removed_entries = append_desktop_entry (removed_entries, removed_associations[j], NULL);
3328
3329 /* Then system defaults (or old per-user config) (using removed associations from this dir or earlier) */
3330 default_entries = g_hash_table_lookup (dir->defaults_list_map, mime_type);
3331 for (j = 0; default_entries != NULL && default_entries[j] != NULL; j++)
3332 {
3333 if (default_entry == NULL && old_default_entry == NULL && !already_found_handler)
3334 old_default_entry = g_strdup (default_entries[j]);
3335
3336 desktop_entries = append_desktop_entry (desktop_entries, default_entries[j], removed_entries);
3337 }
3338 }
3339
3340 /* Go through all entries that support the mimetype */
3341 for (dir_list = mime_info_cache->dirs;
3342 dir_list != NULL;
3343 dir_list = dir_list->next)
3344 {
3345 dir = dir_list->data;
3346
3347 list = g_hash_table_lookup (dir->mime_info_cache_map, mime_type);
3348 for (tmp = list; tmp != NULL; tmp = tmp->next)
3349 desktop_entries = append_desktop_entry (desktop_entries, tmp->data, removed_entries);
3350 }
3351 }
3352
3353 G_UNLOCK (mime_info_cache);
3354
3355 g_strfreev (mime_types);
3356
3357 /* If we have no default from mimeapps.list, take it from
3358 * defaults.list intead.
3359 *
3360 * If we do have a default from mimeapps.list, free any one that came
3361 * from defaults.list.
3362 */
3363 if (default_entry == NULL)
3364 default_entry = old_default_entry;
3365 else
3366 g_free (old_default_entry);
3367
3368 if (explicit_default != NULL)
3369 *explicit_default = default_entry;
3370 else
3371 g_free (default_entry);
3372
3373 g_list_free_full (removed_entries, g_free);
3374
3375 desktop_entries = g_list_reverse (desktop_entries);
3376
3377 return desktop_entries;
3378 }
3379
3380 /* GDesktopAppInfoLookup interface: */
3381
3382 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
3383
3384 typedef GDesktopAppInfoLookupIface GDesktopAppInfoLookupInterface;
3385 G_DEFINE_INTERFACE (GDesktopAppInfoLookup, g_desktop_app_info_lookup, G_TYPE_OBJECT)
3386
3387 static void
3388 g_desktop_app_info_lookup_default_init (GDesktopAppInfoLookupInterface *iface)
3389 {
3390 }
3391
3392 /**
3393 * g_desktop_app_info_lookup_get_default_for_uri_scheme:
3394 * @lookup: a #GDesktopAppInfoLookup
3395 * @uri_scheme: a string containing a URI scheme.
3396 *
3397 * Gets the default application for launching applications
3398 * using this URI scheme for a particular GDesktopAppInfoLookup
3399 * implementation.
3400 *
3401 * The GDesktopAppInfoLookup interface and this function is used
3402 * to implement g_app_info_get_default_for_uri_scheme() backends
3403 * in a GIO module. There is no reason for applications to use it
3404 * directly. Applications should use g_app_info_get_default_for_uri_scheme().
3405 *
3406 * Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error.
3407 *
3408 * Deprecated: The #GDesktopAppInfoLookup interface is deprecated and unused by gio.
3409 */
3410 GAppInfo *
3411 g_desktop_app_info_lookup_get_default_for_uri_scheme (GDesktopAppInfoLookup *lookup,
3412 const char *uri_scheme)
3413 {
3414 GDesktopAppInfoLookupIface *iface;
3415
3416 g_return_val_if_fail (G_IS_DESKTOP_APP_INFO_LOOKUP (lookup), NULL);
3417
3418 iface = G_DESKTOP_APP_INFO_LOOKUP_GET_IFACE (lookup);
3419
3420 return (* iface->get_default_for_uri_scheme) (lookup, uri_scheme);
3421 }
3422
3423 G_GNUC_END_IGNORE_DEPRECATIONS
3424
3425 /**
3426 * g_desktop_app_info_get_startup_wm_class:
3427 * @app_info: a #GDesktopAppInfo that supports startup notify
3428 *
3429 * Retrieves the StartupWMClass field from @app_info. This represents the
3430 * WM_CLASS property of the main window of the application, if launched through
3431 * @app_info.
3432 *
3433 * Returns: (transfer none): the startup WM class, or %NULL if none is set
3434 * in the desktop file.
3435 *
3436 * Since: 2.34
3437 */
3438 const char *
3439 g_desktop_app_info_get_startup_wm_class (GDesktopAppInfo *app_info)
3440 {
3441 g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (app_info), NULL);
3442
3443 return app_info->startup_wm_class;
3444 }
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