1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
19 *
20 * Author: Alexander Larsson <alexl@redhat.com>
21 */
22
23 #include "config.h"
24 #include "gappinfo.h"
25 #include "glibintl.h"
26 #include <gioerror.h>
27 #include <gfile.h>
28
29 #include "gioalias.h"
30
31 /**
32 * SECTION:gappinfo
33 * @short_description: Application information and launch contexts
34 * @include: gio/gio.h
35 *
36 * #GAppInfo and #GAppLaunchContext are used for describing and launching
37 * applications installed on the system.
38 *
39 * As of GLib 2.20, URIs will always be converted to POSIX paths
40 * (using g_file_get_path()) when using g_app_info_launch() even if
41 * the application requested an URI and not a POSIX path. For example
42 * for an desktop-file based application with Exec key <literal>totem
43 * %%U</literal> and a single URI,
44 * <literal>sftp://foo/file.avi</literal>, then
45 * <literal>/home/user/.gvfs/sftp on foo/file.avi</literal> will be
46 * passed. This will only work if a set of suitable GIO extensions
47 * (such as gvfs 2.26 compiled with FUSE support), is available and
48 * operational; if this is not the case, the URI will be passed
49 * unmodified to the application. Some URIs, such as
50 * <literal>mailto:</literal>, of course cannot be mapped to a POSIX
51 * path (in gvfs there's no FUSE mount for it); such URIs will be
52 * passed unmodified to the application.
53 *
54 * Specifically for gvfs 2.26 and later, the POSIX URI will be mapped
55 * back to the GIO URI in the #GFile constructors (since gvfs
56 * implements the #GVfs extension point). As such, if the application
57 * needs to examine the URI, it needs to use g_file_get_uri() or
58 * similar on #GFile. In other words, an application cannot assume
59 * that the URI passed to e.g. g_file_new_for_commandline_arg() is
60 * equal to the result of g_file_get_uri(). The following snippet
61 * illustrates this:
62 *
63 * <programlisting>
64 * GFile *f;
65 * char *uri;
66 *
67 * file = g_file_new_for_commandline_arg (uri_from_commandline);
68 *
69 * uri = g_file_get_uri (file);
70 * strcmp (uri, uri_from_commandline) == 0; // FALSE
71 * g_free (uri);
72 *
73 * if (g_file_has_uri_scheme (file, "cdda"))
74 * {
75 * // do something special with uri
76 * }
77 * g_object_unref (file);
78 * </programlisting>
79 *
80 * This code will work when both <literal>cdda://sr0/Track
81 * 1.wav</literal> and <literal>/home/user/.gvfs/cdda on sr0/Track
82 * 1.wav</literal> is passed to the application. It should be noted
83 * that it's generally not safe for applications to rely on the format
84 * of a particular URIs. Different launcher applications (e.g. file
85 * managers) may have different ideas of what a given URI means.
86 *
87 **/
88
89 static void g_app_info_base_init (gpointer g_class);
90 static void g_app_info_class_init (gpointer g_class,
91 gpointer class_data);
92
93
94 GType
g_app_info_get_type(void)95 g_app_info_get_type (void)
96 {
97 static volatile gsize g_define_type_id__volatile = 0;
98
99 if (g_once_init_enter (&g_define_type_id__volatile))
100 {
101 const GTypeInfo app_info_info =
102 {
103 sizeof (GAppInfoIface), /* class_size */
104 g_app_info_base_init, /* base_init */
105 NULL, /* base_finalize */
106 g_app_info_class_init,
107 NULL, /* class_finalize */
108 NULL, /* class_data */
109 0,
110 0, /* n_preallocs */
111 NULL
112 };
113 GType g_define_type_id =
114 g_type_register_static (G_TYPE_INTERFACE, I_("GAppInfo"),
115 &app_info_info, 0);
116
117 g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_OBJECT);
118
119 g_once_init_leave (&g_define_type_id__volatile, g_define_type_id);
120 }
121
122 return g_define_type_id__volatile;
123 }
124
125 static void
g_app_info_class_init(gpointer g_class,gpointer class_data)126 g_app_info_class_init (gpointer g_class,
127 gpointer class_data)
128 {
129 }
130
131 static void
g_app_info_base_init(gpointer g_class)132 g_app_info_base_init (gpointer g_class)
133 {
134 }
135
136
137 /**
138 * g_app_info_dup:
139 * @appinfo: a #GAppInfo.
140 *
141 * Creates a duplicate of a #GAppInfo.
142 *
143 * Returns: a duplicate of @appinfo.
144 **/
145 GAppInfo *
g_app_info_dup(GAppInfo * appinfo)146 g_app_info_dup (GAppInfo *appinfo)
147 {
148 GAppInfoIface *iface;
149
150 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
151
152 iface = G_APP_INFO_GET_IFACE (appinfo);
153
154 return (* iface->dup) (appinfo);
155 }
156
157 /**
158 * g_app_info_equal:
159 * @appinfo1: the first #GAppInfo.
160 * @appinfo2: the second #GAppInfo.
161 *
162 * Checks if two #GAppInfos are equal.
163 *
164 * Returns: %TRUE if @appinfo1 is equal to @appinfo2. %FALSE otherwise.
165 **/
166 gboolean
g_app_info_equal(GAppInfo * appinfo1,GAppInfo * appinfo2)167 g_app_info_equal (GAppInfo *appinfo1,
168 GAppInfo *appinfo2)
169 {
170 GAppInfoIface *iface;
171
172 g_return_val_if_fail (G_IS_APP_INFO (appinfo1), FALSE);
173 g_return_val_if_fail (G_IS_APP_INFO (appinfo2), FALSE);
174
175 if (G_TYPE_FROM_INSTANCE (appinfo1) != G_TYPE_FROM_INSTANCE (appinfo2))
176 return FALSE;
177
178 iface = G_APP_INFO_GET_IFACE (appinfo1);
179
180 return (* iface->equal) (appinfo1, appinfo2);
181 }
182
183 /**
184 * g_app_info_get_id:
185 * @appinfo: a #GAppInfo.
186 *
187 * Gets the ID of an application. An id is a string that
188 * identifies the application. The exact format of the id is
189 * platform dependent. For instance, on Unix this is the
190 * desktop file id from the xdg menu specification.
191 *
192 * Note that the returned ID may be %NULL, depending on how
193 * the @appinfo has been constructed.
194 *
195 * Returns: a string containing the application's ID.
196 **/
197 const char *
g_app_info_get_id(GAppInfo * appinfo)198 g_app_info_get_id (GAppInfo *appinfo)
199 {
200 GAppInfoIface *iface;
201
202 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
203
204 iface = G_APP_INFO_GET_IFACE (appinfo);
205
206 return (* iface->get_id) (appinfo);
207 }
208
209 /**
210 * g_app_info_get_name:
211 * @appinfo: a #GAppInfo.
212 *
213 * Gets the installed name of the application.
214 *
215 * Returns: the name of the application for @appinfo.
216 **/
217 const char *
g_app_info_get_name(GAppInfo * appinfo)218 g_app_info_get_name (GAppInfo *appinfo)
219 {
220 GAppInfoIface *iface;
221
222 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
223
224 iface = G_APP_INFO_GET_IFACE (appinfo);
225
226 return (* iface->get_name) (appinfo);
227 }
228
229 /**
230 * g_app_info_get_description:
231 * @appinfo: a #GAppInfo.
232 *
233 * Gets a human-readable description of an installed application.
234 *
235 * Returns: a string containing a description of the
236 * application @appinfo, or %NULL if none.
237 **/
238 const char *
g_app_info_get_description(GAppInfo * appinfo)239 g_app_info_get_description (GAppInfo *appinfo)
240 {
241 GAppInfoIface *iface;
242
243 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
244
245 iface = G_APP_INFO_GET_IFACE (appinfo);
246
247 return (* iface->get_description) (appinfo);
248 }
249
250 /**
251 * g_app_info_get_executable:
252 * @appinfo: a #GAppInfo
253 *
254 * Gets the executable's name for the installed application.
255 *
256 * Returns: a string containing the @appinfo's application
257 * binary's name
258 **/
259 const char *
g_app_info_get_executable(GAppInfo * appinfo)260 g_app_info_get_executable (GAppInfo *appinfo)
261 {
262 GAppInfoIface *iface;
263
264 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
265
266 iface = G_APP_INFO_GET_IFACE (appinfo);
267
268 return (* iface->get_executable) (appinfo);
269 }
270
271
272 /**
273 * g_app_info_get_commandline:
274 * @appinfo: a #GAppInfo
275 *
276 * Gets the commandline with which the application will be
277 * started.
278 *
279 * Returns: a string containing the @appinfo's commandline,
280 * or %NULL if this information is not available
281 *
282 * Since: 2.20
283 **/
284 const char *
g_app_info_get_commandline(GAppInfo * appinfo)285 g_app_info_get_commandline (GAppInfo *appinfo)
286 {
287 GAppInfoIface *iface;
288
289 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
290
291 iface = G_APP_INFO_GET_IFACE (appinfo);
292
293 if (iface->get_commandline)
294 return (* iface->get_commandline) (appinfo);
295
296 return NULL;
297 }
298
299 /**
300 * g_app_info_set_as_default_for_type:
301 * @appinfo: a #GAppInfo.
302 * @content_type: the content type.
303 * @error: a #GError.
304 *
305 * Sets the application as the default handler for a given type.
306 *
307 * Returns: %TRUE on success, %FALSE on error.
308 **/
309 gboolean
g_app_info_set_as_default_for_type(GAppInfo * appinfo,const char * content_type,GError ** error)310 g_app_info_set_as_default_for_type (GAppInfo *appinfo,
311 const char *content_type,
312 GError **error)
313 {
314 GAppInfoIface *iface;
315
316 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
317 g_return_val_if_fail (content_type != NULL, FALSE);
318
319 iface = G_APP_INFO_GET_IFACE (appinfo);
320
321 return (* iface->set_as_default_for_type) (appinfo, content_type, error);
322 }
323
324
325 /**
326 * g_app_info_set_as_default_for_extension:
327 * @appinfo: a #GAppInfo.
328 * @extension: a string containing the file extension (without the dot).
329 * @error: a #GError.
330 *
331 * Sets the application as the default handler for the given file extention.
332 *
333 * Returns: %TRUE on success, %FALSE on error.
334 **/
335 gboolean
g_app_info_set_as_default_for_extension(GAppInfo * appinfo,const char * extension,GError ** error)336 g_app_info_set_as_default_for_extension (GAppInfo *appinfo,
337 const char *extension,
338 GError **error)
339 {
340 GAppInfoIface *iface;
341
342 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
343 g_return_val_if_fail (extension != NULL, FALSE);
344
345 iface = G_APP_INFO_GET_IFACE (appinfo);
346
347 if (iface->set_as_default_for_extension)
348 return (* iface->set_as_default_for_extension) (appinfo, extension, error);
349
350 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
351 "g_app_info_set_as_default_for_extension not supported yet");
352 return FALSE;
353 }
354
355
356 /**
357 * g_app_info_add_supports_type:
358 * @appinfo: a #GAppInfo.
359 * @content_type: a string.
360 * @error: a #GError.
361 *
362 * Adds a content type to the application information to indicate the
363 * application is capable of opening files with the given content type.
364 *
365 * Returns: %TRUE on success, %FALSE on error.
366 **/
367 gboolean
g_app_info_add_supports_type(GAppInfo * appinfo,const char * content_type,GError ** error)368 g_app_info_add_supports_type (GAppInfo *appinfo,
369 const char *content_type,
370 GError **error)
371 {
372 GAppInfoIface *iface;
373
374 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
375 g_return_val_if_fail (content_type != NULL, FALSE);
376
377 iface = G_APP_INFO_GET_IFACE (appinfo);
378
379 if (iface->add_supports_type)
380 return (* iface->add_supports_type) (appinfo, content_type, error);
381
382 g_set_error_literal (error, G_IO_ERROR,
383 G_IO_ERROR_NOT_SUPPORTED,
384 "g_app_info_add_supports_type not supported yet");
385
386 return FALSE;
387 }
388
389
390 /**
391 * g_app_info_can_remove_supports_type:
392 * @appinfo: a #GAppInfo.
393 *
394 * Checks if a supported content type can be removed from an application.
395 *
396 * Returns: %TRUE if it is possible to remove supported
397 * content types from a given @appinfo, %FALSE if not.
398 **/
399 gboolean
g_app_info_can_remove_supports_type(GAppInfo * appinfo)400 g_app_info_can_remove_supports_type (GAppInfo *appinfo)
401 {
402 GAppInfoIface *iface;
403
404 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
405
406 iface = G_APP_INFO_GET_IFACE (appinfo);
407
408 if (iface->can_remove_supports_type)
409 return (* iface->can_remove_supports_type) (appinfo);
410
411 return FALSE;
412 }
413
414
415 /**
416 * g_app_info_remove_supports_type:
417 * @appinfo: a #GAppInfo.
418 * @content_type: a string.
419 * @error: a #GError.
420 *
421 * Removes a supported type from an application, if possible.
422 *
423 * Returns: %TRUE on success, %FALSE on error.
424 **/
425 gboolean
g_app_info_remove_supports_type(GAppInfo * appinfo,const char * content_type,GError ** error)426 g_app_info_remove_supports_type (GAppInfo *appinfo,
427 const char *content_type,
428 GError **error)
429 {
430 GAppInfoIface *iface;
431
432 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
433 g_return_val_if_fail (content_type != NULL, FALSE);
434
435 iface = G_APP_INFO_GET_IFACE (appinfo);
436
437 if (iface->remove_supports_type)
438 return (* iface->remove_supports_type) (appinfo, content_type, error);
439
440 g_set_error_literal (error, G_IO_ERROR,
441 G_IO_ERROR_NOT_SUPPORTED,
442 "g_app_info_remove_supports_type not supported yet");
443
444 return FALSE;
445 }
446
447
448 /**
449 * g_app_info_get_icon:
450 * @appinfo: a #GAppInfo.
451 *
452 * Gets the icon for the application.
453 *
454 * Returns: the default #GIcon for @appinfo.
455 **/
456 GIcon *
g_app_info_get_icon(GAppInfo * appinfo)457 g_app_info_get_icon (GAppInfo *appinfo)
458 {
459 GAppInfoIface *iface;
460
461 g_return_val_if_fail (G_IS_APP_INFO (appinfo), NULL);
462
463 iface = G_APP_INFO_GET_IFACE (appinfo);
464
465 return (* iface->get_icon) (appinfo);
466 }
467
468
469 /**
470 * g_app_info_launch:
471 * @appinfo: a #GAppInfo
472 * @files: a #GList of #GFile objects
473 * @launch_context: a #GAppLaunchContext or %NULL
474 * @error: a #GError
475 *
476 * Launches the application. Passes @files to the launched application
477 * as arguments, using the optional @launch_context to get information
478 * about the details of the launcher (like what screen it is on).
479 * On error, @error will be set accordingly.
480 *
481 * To lauch the application without arguments pass a %NULL @files list.
482 *
483 * Note that even if the launch is successful the application launched
484 * can fail to start if it runs into problems during startup. There is
485 * no way to detect this.
486 *
487 * Some URIs can be changed when passed through a GFile (for instance
488 * unsupported uris with strange formats like mailto:), so if you have
489 * a textual uri you want to pass in as argument, consider using
490 * g_app_info_launch_uris() instead.
491 *
492 * Returns: %TRUE on successful launch, %FALSE otherwise.
493 **/
494 gboolean
g_app_info_launch(GAppInfo * appinfo,GList * files,GAppLaunchContext * launch_context,GError ** error)495 g_app_info_launch (GAppInfo *appinfo,
496 GList *files,
497 GAppLaunchContext *launch_context,
498 GError **error)
499 {
500 GAppInfoIface *iface;
501
502 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
503
504 iface = G_APP_INFO_GET_IFACE (appinfo);
505
506 return (* iface->launch) (appinfo, files, launch_context, error);
507 }
508
509
510 /**
511 * g_app_info_supports_uris:
512 * @appinfo: a #GAppInfo.
513 *
514 * Checks if the application supports reading files and directories from URIs.
515 *
516 * Returns: %TRUE if the @appinfo supports URIs.
517 **/
518 gboolean
g_app_info_supports_uris(GAppInfo * appinfo)519 g_app_info_supports_uris (GAppInfo *appinfo)
520 {
521 GAppInfoIface *iface;
522
523 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
524
525 iface = G_APP_INFO_GET_IFACE (appinfo);
526
527 return (* iface->supports_uris) (appinfo);
528 }
529
530
531 /**
532 * g_app_info_supports_files:
533 * @appinfo: a #GAppInfo.
534 *
535 * Checks if the application accepts files as arguments.
536 *
537 * Returns: %TRUE if the @appinfo supports files.
538 **/
539 gboolean
g_app_info_supports_files(GAppInfo * appinfo)540 g_app_info_supports_files (GAppInfo *appinfo)
541 {
542 GAppInfoIface *iface;
543
544 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
545
546 iface = G_APP_INFO_GET_IFACE (appinfo);
547
548 return (* iface->supports_files) (appinfo);
549 }
550
551
552 /**
553 * g_app_info_launch_uris:
554 * @appinfo: a #GAppInfo
555 * @uris: a #GList containing URIs to launch.
556 * @launch_context: a #GAppLaunchContext or %NULL
557 * @error: a #GError
558 *
559 * Launches the application. Passes @uris to the launched application
560 * as arguments, using the optional @launch_context to get information
561 * about the details of the launcher (like what screen it is on).
562 * On error, @error will be set accordingly.
563 *
564 * To lauch the application without arguments pass a %NULL @uris list.
565 *
566 * Note that even if the launch is successful the application launched
567 * can fail to start if it runs into problems during startup. There is
568 * no way to detect this.
569 *
570 * Returns: %TRUE on successful launch, %FALSE otherwise.
571 **/
572 gboolean
g_app_info_launch_uris(GAppInfo * appinfo,GList * uris,GAppLaunchContext * launch_context,GError ** error)573 g_app_info_launch_uris (GAppInfo *appinfo,
574 GList *uris,
575 GAppLaunchContext *launch_context,
576 GError **error)
577 {
578 GAppInfoIface *iface;
579
580 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
581
582 iface = G_APP_INFO_GET_IFACE (appinfo);
583
584 return (* iface->launch_uris) (appinfo, uris, launch_context, error);
585 }
586
587
588 /**
589 * g_app_info_should_show:
590 * @appinfo: a #GAppInfo.
591 *
592 * Checks if the application info should be shown in menus that
593 * list available applications.
594 *
595 * Returns: %TRUE if the @appinfo should be shown, %FALSE otherwise.
596 **/
597 gboolean
g_app_info_should_show(GAppInfo * appinfo)598 g_app_info_should_show (GAppInfo *appinfo)
599 {
600 GAppInfoIface *iface;
601
602 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
603
604 iface = G_APP_INFO_GET_IFACE (appinfo);
605
606 return (* iface->should_show) (appinfo);
607 }
608
609 /**
610 * g_app_info_launch_default_for_uri:
611 * @uri: the uri to show
612 * @launch_context: an optional #GAppLaunchContext.
613 * @error: a #GError.
614 *
615 * Utility function that launches the default application
616 * registered to handle the specified uri. Synchronous I/O
617 * is done on the uri to detect the type of the file if
618 * required.
619 *
620 * Returns: %TRUE on success, %FALSE on error.
621 **/
622 gboolean
g_app_info_launch_default_for_uri(const char * uri,GAppLaunchContext * launch_context,GError ** error)623 g_app_info_launch_default_for_uri (const char *uri,
624 GAppLaunchContext *launch_context,
625 GError **error)
626 {
627 GAppInfo *app_info;
628 GFile *file;
629 GList l;
630 gboolean res;
631
632 file = g_file_new_for_uri (uri);
633 app_info = g_file_query_default_handler (file, NULL, error);
634 g_object_unref (file);
635 if (app_info == NULL)
636 return FALSE;
637
638 /* Use the uri, not the GFile, as the GFile roundtrip may
639 * affect the uri which we don't want (for instance for a
640 * mailto: uri).
641 */
642 l.data = (char *)uri;
643 l.next = l.prev = NULL;
644 res = g_app_info_launch_uris (app_info, &l,
645 launch_context, error);
646
647 g_object_unref (app_info);
648
649 return res;
650 }
651
652 /**
653 * g_app_info_can_delete:
654 * @appinfo: a #GAppInfo
655 *
656 * Obtains the information whether the GAppInfo can be deleted.
657 * See g_app_info_delete().
658 *
659 * Returns: %TRUE if @appinfo can be deleted
660 *
661 * Since: 2.20
662 */
663 gboolean
g_app_info_can_delete(GAppInfo * appinfo)664 g_app_info_can_delete (GAppInfo *appinfo)
665 {
666 GAppInfoIface *iface;
667
668 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
669
670 iface = G_APP_INFO_GET_IFACE (appinfo);
671
672 if (iface->can_delete)
673 return (* iface->can_delete) (appinfo);
674
675 return FALSE;
676 }
677
678
679 /**
680 * g_app_info_delete:
681 * @appinfo: a #GAppInfo
682 *
683 * Tries to delete an #GAppInfo.
684 *
685 * On some platforms, there may be a difference between user-defined
686 * #GAppInfo<!-- -->s which can be deleted, and system-wide ones which
687 * cannot. See g_app_info_can_delete().
688 *
689 * Returns: %TRUE if @appinfo has been deleted
690 *
691 * Since: 2.20
692 */
693 gboolean
g_app_info_delete(GAppInfo * appinfo)694 g_app_info_delete (GAppInfo *appinfo)
695 {
696 GAppInfoIface *iface;
697
698 g_return_val_if_fail (G_IS_APP_INFO (appinfo), FALSE);
699
700 iface = G_APP_INFO_GET_IFACE (appinfo);
701
702 if (iface->do_delete)
703 return (* iface->do_delete) (appinfo);
704
705 return FALSE;
706 }
707
708
709 G_DEFINE_TYPE (GAppLaunchContext, g_app_launch_context, G_TYPE_OBJECT);
710
711 /**
712 * g_app_launch_context_new:
713 *
714 * Creates a new application launch context. This is not normally used,
715 * instead you instantiate a subclass of this, such as #GdkAppLaunchContext.
716 *
717 * Returns: a #GAppLaunchContext.
718 **/
719 GAppLaunchContext *
g_app_launch_context_new(void)720 g_app_launch_context_new (void)
721 {
722 return g_object_new (G_TYPE_APP_LAUNCH_CONTEXT, NULL);
723 }
724
725 static void
g_app_launch_context_class_init(GAppLaunchContextClass * klass)726 g_app_launch_context_class_init (GAppLaunchContextClass *klass)
727 {
728 }
729
730 static void
g_app_launch_context_init(GAppLaunchContext * launch_context)731 g_app_launch_context_init (GAppLaunchContext *launch_context)
732 {
733 }
734
735 /**
736 * g_app_launch_context_get_display:
737 * @context: a #GAppLaunchContext
738 * @info: a #GAppInfo
739 * @files: a #GList of #GFile objects
740 *
741 * Gets the display string for the display. This is used to ensure new
742 * applications are started on the same display as the launching
743 * application.
744 *
745 * Returns: a display string for the display.
746 **/
747 char *
g_app_launch_context_get_display(GAppLaunchContext * context,GAppInfo * info,GList * files)748 g_app_launch_context_get_display (GAppLaunchContext *context,
749 GAppInfo *info,
750 GList *files)
751 {
752 GAppLaunchContextClass *class;
753
754 g_return_val_if_fail (G_IS_APP_LAUNCH_CONTEXT (context), NULL);
755 g_return_val_if_fail (G_IS_APP_INFO (info), NULL);
756
757 class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
758
759 if (class->get_display == NULL)
760 return NULL;
761
762 return class->get_display (context, info, files);
763 }
764
765 /**
766 * g_app_launch_context_get_startup_notify_id:
767 * @context: a #GAppLaunchContext
768 * @info: a #GAppInfo
769 * @files: a #GList of of #GFile objects
770 *
771 * Initiates startup notification for the application and returns the
772 * DESKTOP_STARTUP_ID for the launched operation, if supported.
773 *
774 * Startup notification IDs are defined in the <ulink
775 * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">
776 * FreeDesktop.Org Startup Notifications standard</ulink>.
777 *
778 * Returns: a startup notification ID for the application, or %NULL if
779 * not supported.
780 **/
781 char *
g_app_launch_context_get_startup_notify_id(GAppLaunchContext * context,GAppInfo * info,GList * files)782 g_app_launch_context_get_startup_notify_id (GAppLaunchContext *context,
783 GAppInfo *info,
784 GList *files)
785 {
786 GAppLaunchContextClass *class;
787
788 g_return_val_if_fail (G_IS_APP_LAUNCH_CONTEXT (context), NULL);
789 g_return_val_if_fail (G_IS_APP_INFO (info), NULL);
790
791 class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
792
793 if (class->get_startup_notify_id == NULL)
794 return NULL;
795
796 return class->get_startup_notify_id (context, info, files);
797 }
798
799
800 /**
801 * g_app_launch_context_launch_failed:
802 * @context: a #GAppLaunchContext.
803 * @startup_notify_id: the startup notification id that was returned by g_app_launch_context_get_startup_notify_id().
804 *
805 * Called when an application has failed to launch, so that it can cancel
806 * the application startup notification started in g_app_launch_context_get_startup_notify_id().
807 *
808 **/
809 void
g_app_launch_context_launch_failed(GAppLaunchContext * context,const char * startup_notify_id)810 g_app_launch_context_launch_failed (GAppLaunchContext *context,
811 const char *startup_notify_id)
812 {
813 GAppLaunchContextClass *class;
814
815 g_return_if_fail (G_IS_APP_LAUNCH_CONTEXT (context));
816 g_return_if_fail (startup_notify_id != NULL);
817
818 class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
819
820 if (class->launch_failed != NULL)
821 class->launch_failed (context, startup_notify_id);
822 }
823
824
825 #define __G_APP_INFO_C__
826 #include "gioaliasdef.c"
827