1	/*
2	* Copyright © 2010 Codethink Limited
3	*
4	* This library is free software; you can redistribute it and/or
5	* modify it under the terms of the GNU Lesser General Public
6	* License as published by the Free Software Foundation; either
7	* version 2.1 of the License, or (at your option) any later version.
8	*
9	* This library is distributed in the hope that it will be useful,
10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12	* Lesser General Public License for more details.
13	*
14	* You should have received a copy of the GNU Lesser General
15	* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
16	*
17	* Authors: Ryan Lortie <desrt@desrt.ca>
18	*/
19
20	/* Prologue {{{1 */
21	#include "config.h"
22
23	#include "gapplication.h"
24
25	#include "gapplicationcommandline.h"
26	#include "gsimpleactiongroup.h"
27	#include "gremoteactiongroup.h"
28	#include "gapplicationimpl.h"
29	#include "gactiongroup.h"
30	#include "gactionmap.h"
31	#include "gsettings.h"
32	#include "gnotification-private.h"
33	#include "gnotificationbackend.h"
34	#include "gdbusutils.h"
35
36	#include "gioenumtypes.h"
37	#include "gioenums.h"
38	#include "gfile.h"
39
40	#include "glibintl.h"
41	#include "gmarshal-internal.h"
42
43	#include <string.h>
44
45	/**
46	* SECTION:gapplication
47	* @title: GApplication
48	* @short_description: Core application class
49	* @include: gio/gio.h
50	*
51	* A #GApplication is the foundation of an application. It wraps some
52	* low-level platform-specific services and is intended to act as the
53	* foundation for higher-level application classes such as
54	* #GtkApplication or #MxApplication. In general, you should not use
55	* this class outside of a higher level framework.
56	*
57	* GApplication provides convenient life cycle management by maintaining
58	* a "use count" for the primary application instance. The use count can
59	* be changed using g_application_hold() and g_application_release(). If
60	* it drops to zero, the application exits. Higher-level classes such as
61	* #GtkApplication employ the use count to ensure that the application
62	* stays alive as long as it has any opened windows.
63	*
64	* Another feature that GApplication (optionally) provides is process
65	* uniqueness. Applications can make use of this functionality by
66	* providing a unique application ID. If given, only one application
67	* with this ID can be running at a time per session. The session
68	* concept is platform-dependent, but corresponds roughly to a graphical
69	* desktop login. When your application is launched again, its
70	* arguments are passed through platform communication to the already
71	* running program. The already running instance of the program is
72	* called the "primary instance"; for non-unique applications this is
73	* always the current instance. On Linux, the D-Bus session bus
74	* is used for communication.
75	*
76	* The use of #GApplication differs from some other commonly-used
77	* uniqueness libraries (such as libunique) in important ways. The
78	* application is not expected to manually register itself and check
79	* if it is the primary instance. Instead, the main() function of a
80	* #GApplication should do very little more than instantiating the
81	* application instance, possibly connecting signal handlers, then
82	* calling g_application_run(). All checks for uniqueness are done
83	* internally. If the application is the primary instance then the
84	* startup signal is emitted and the mainloop runs. If the application
85	* is not the primary instance then a signal is sent to the primary
86	* instance and g_application_run() promptly returns. See the code
87	* examples below.
88	*
89	* If used, the expected form of an application identifier is the same as
90	* that of of a
91	* [D-Bus well-known bus name](https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus).
92	* Examples include: `com.example.MyApp`, `org.example.internal_apps.Calculator`,
93	* `org._7_zip.Archiver`.
94	* For details on valid application identifiers, see g_application_id_is_valid().
95	*
96	* On Linux, the application identifier is claimed as a well-known bus name
97	* on the user's session bus. This means that the uniqueness of your
98	* application is scoped to the current session. It also means that your
99	* application may provide additional services (through registration of other
100	* object paths) at that bus name. The registration of these object paths
101	* should be done with the shared GDBus session bus. Note that due to the
102	* internal architecture of GDBus, method calls can be dispatched at any time
103	* (even if a main loop is not running). For this reason, you must ensure that
104	* any object paths that you wish to register are registered before #GApplication
105	* attempts to acquire the bus name of your application (which happens in
106	* g_application_register()). Unfortunately, this means that you cannot use
107	* g_application_get_is_remote() to decide if you want to register object paths.
108	*
109	* GApplication also implements the #GActionGroup and #GActionMap
110	* interfaces and lets you easily export actions by adding them with
111	* g_action_map_add_action(). When invoking an action by calling
112	* g_action_group_activate_action() on the application, it is always
113	* invoked in the primary instance. The actions are also exported on
114	* the session bus, and GIO provides the #GDBusActionGroup wrapper to
115	* conveniently access them remotely. GIO provides a #GDBusMenuModel wrapper
116	* for remote access to exported #GMenuModels.
117	*
118	* There is a number of different entry points into a GApplication:
119	*
120	* - via 'Activate' (i.e. just starting the application)
121	*
122	* - via 'Open' (i.e. opening some files)
123	*
124	* - by handling a command-line
125	*
126	* - via activating an action
127	*
128	* The #GApplication::startup signal lets you handle the application
129	* initialization for all of these in a single place.
130	*
131	* Regardless of which of these entry points is used to start the
132	* application, GApplication passes some ‘platform data’ from the
133	* launching instance to the primary instance, in the form of a
134	* #GVariant dictionary mapping strings to variants. To use platform
135	* data, override the @before_emit or @after_emit virtual functions
136	* in your #GApplication subclass. When dealing with
137	* #GApplicationCommandLine objects, the platform data is
138	* directly available via g_application_command_line_get_cwd(),
139	* g_application_command_line_get_environ() and
140	* g_application_command_line_get_platform_data().
141	*
142	* As the name indicates, the platform data may vary depending on the
143	* operating system, but it always includes the current directory (key
144	* "cwd"), and optionally the environment (ie the set of environment
145	* variables and their values) of the calling process (key "environ").
146	* The environment is only added to the platform data if the
147	* %G_APPLICATION_SEND_ENVIRONMENT flag is set. #GApplication subclasses
148	* can add their own platform data by overriding the @add_platform_data
149	* virtual function. For instance, #GtkApplication adds startup notification
150	* data in this way.
151	*
152	* To parse commandline arguments you may handle the
153	* #GApplication::command-line signal or override the local_command_line()
154	* vfunc, to parse them in either the primary instance or the local instance,
155	* respectively.
156	*
157	* For an example of opening files with a GApplication, see
158	* [gapplication-example-open.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-open.c).
159	*
160	* For an example of using actions with GApplication, see
161	* [gapplication-example-actions.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-actions.c).
162	*
163	* For an example of using extra D-Bus hooks with GApplication, see
164	* [gapplication-example-dbushooks.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-dbushooks.c).
165	*/
166
167	/**
168	* GApplication:
169	*
170	* #GApplication is an opaque data structure and can only be accessed
171	* using the following functions.
172	* Since: 2.28
173	*/
174
175	/**
176	* GApplicationClass:
177	* @startup: invoked on the primary instance immediately after registration
178	* @shutdown: invoked only on the registered primary instance immediately
179	* after the main loop terminates
180	* @activate: invoked on the primary instance when an activation occurs
181	* @open: invoked on the primary instance when there are files to open
182	* @command_line: invoked on the primary instance when a command-line is
183	* not handled locally
184	* @local_command_line: invoked (locally). The virtual function has the chance
185	* to inspect (and possibly replace) command line arguments. See
186	* g_application_run() for more information. Also see the
187	* #GApplication::handle-local-options signal, which is a simpler
188	* alternative to handling some commandline options locally
189	* @before_emit: invoked on the primary instance before 'activate', 'open',
190	* 'command-line' or any action invocation, gets the 'platform data' from
191	* the calling instance
192	* @after_emit: invoked on the primary instance after 'activate', 'open',
193	* 'command-line' or any action invocation, gets the 'platform data' from
194	* the calling instance
195	* @add_platform_data: invoked (locally) to add 'platform data' to be sent to
196	* the primary instance when activating, opening or invoking actions
197	* @quit_mainloop: Used to be invoked on the primary instance when the use
198	* count of the application drops to zero (and after any inactivity
199	* timeout, if requested). Not used anymore since 2.32
200	* @run_mainloop: Used to be invoked on the primary instance from
201	* g_application_run() if the use-count is non-zero. Since 2.32,
202	* GApplication is iterating the main context directly and is not
203	* using @run_mainloop anymore
204	* @dbus_register: invoked locally during registration, if the application is
205	* using its D-Bus backend. You can use this to export extra objects on the
206	* bus, that need to exist before the application tries to own the bus name.
207	* The function is passed the #GDBusConnection to to session bus, and the
208	* object path that #GApplication will use to export is D-Bus API.
209	* If this function returns %TRUE, registration will proceed; otherwise
210	* registration will abort. Since: 2.34
211	* @dbus_unregister: invoked locally during unregistration, if the application
212	* is using its D-Bus backend. Use this to undo anything done by
213	* the @dbus_register vfunc. Since: 2.34
214	* @handle_local_options: invoked locally after the parsing of the commandline
215	* options has occurred. Since: 2.40
216	* @name_lost: invoked when another instance is taking over the name. Since: 2.60
217	*
218	* Virtual function table for #GApplication.
219	*
220	* Since: 2.28
221	*/
222
223	struct _GApplicationPrivate
224	{
225	GApplicationFlags flags;
226	gchar *id;
227	gchar *resource_path;
228
229	GActionGroup *actions;
230
231	guint inactivity_timeout_id;
232	guint inactivity_timeout;
233	guint use_count;
234	guint busy_count;
235
236	guint is_registered : 1;
237	guint is_remote : 1;
238	guint did_startup : 1;
239	guint did_shutdown : 1;
240	guint must_quit_now : 1;
241
242	GRemoteActionGroup *remote_actions;
243	GApplicationImpl *impl;
244
245	GNotificationBackend *notifications;
246
247	/* GOptionContext support */
248	GOptionGroup *main_options;
249	GSList *option_groups;
250	GHashTable *packed_options;
251	gboolean options_parsed;
252	gchar *parameter_string;
253	gchar *summary;
254	gchar *description;
255
256	/* Allocated option strings, from g_application_add_main_option() */
257	GSList *option_strings;
258	};
259
260	enum
261	{
262	PROP_NONE,
263	PROP_APPLICATION_ID,
264	PROP_FLAGS,
265	PROP_RESOURCE_BASE_PATH,
266	PROP_IS_REGISTERED,
267	PROP_IS_REMOTE,
268	PROP_INACTIVITY_TIMEOUT,
269	PROP_ACTION_GROUP,
270	PROP_IS_BUSY
271	};
272
273	enum
274	{
275	SIGNAL_STARTUP,
276	SIGNAL_SHUTDOWN,
277	SIGNAL_ACTIVATE,
278	SIGNAL_OPEN,
279	SIGNAL_ACTION,
280	SIGNAL_COMMAND_LINE,
281	SIGNAL_HANDLE_LOCAL_OPTIONS,
282	SIGNAL_NAME_LOST,
283	NR_SIGNALS
284	};
285
286	static guint g_application_signals[NR_SIGNALS];
287
288	static void g_application_action_group_iface_init (GActionGroupInterface *);
289	static void g_application_action_map_iface_init (GActionMapInterface *);
290	G_DEFINE_TYPE_WITH_CODE (GApplication, g_application, G_TYPE_OBJECT,
291	G_ADD_PRIVATE (GApplication)
292	G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, g_application_action_group_iface_init)
293	G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_MAP, g_application_action_map_iface_init))
294
295	/* GApplicationExportedActions {{{1 */
296
297	/* We create a subclass of GSimpleActionGroup that implements
298	* GRemoteActionGroup and deals with the platform data using
299	* GApplication's before/after_emit vfuncs. This is the action group we
300	* will be exporting.
301	*
302	* We could implement GRemoteActionGroup on GApplication directly, but
303	* this would be potentially extremely confusing to have exposed as part
304	* of the public API of GApplication. We certainly don't want anyone in
305	* the same process to be calling these APIs...
306	*/
307	typedef GSimpleActionGroupClass GApplicationExportedActionsClass;
308	typedef struct
309	{
310	GSimpleActionGroup parent_instance;
311	GApplication *application;
312	} GApplicationExportedActions;
313
314	static GType g_application_exported_actions_get_type (void);
315	static void g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface);
316	G_DEFINE_TYPE_WITH_CODE (GApplicationExportedActions, g_application_exported_actions, G_TYPE_SIMPLE_ACTION_GROUP,
317	G_IMPLEMENT_INTERFACE (G_TYPE_REMOTE_ACTION_GROUP, g_application_exported_actions_iface_init))
318
319	static void
320	g_application_exported_actions_activate_action_full (GRemoteActionGroup *remote,
321	const gchar *action_name,
322	GVariant *parameter,
323	GVariant *platform_data)
324	{
325	GApplicationExportedActions *exported = (GApplicationExportedActions *) remote;
326
327	G_APPLICATION_GET_CLASS (exported->application)
328	->before_emit (exported->application, platform_data);
329
330	g_action_group_activate_action (G_ACTION_GROUP (exported), action_name, parameter);
331
332	G_APPLICATION_GET_CLASS (exported->application)
333	->after_emit (exported->application, platform_data);
334	}
335
336	static void
337	g_application_exported_actions_change_action_state_full (GRemoteActionGroup *remote,
338	const gchar *action_name,
339	GVariant *value,
340	GVariant *platform_data)
341	{
342	GApplicationExportedActions *exported = (GApplicationExportedActions *) remote;
343
344	G_APPLICATION_GET_CLASS (exported->application)
345	->before_emit (exported->application, platform_data);
346
347	g_action_group_change_action_state (G_ACTION_GROUP (exported), action_name, value);
348
349	G_APPLICATION_GET_CLASS (exported->application)
350	->after_emit (exported->application, platform_data);
351	}
352
353	static void
354	g_application_exported_actions_init (GApplicationExportedActions *actions)
355	{
356	}
357
358	static void
359	g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface)
360	{
361	iface->activate_action_full = g_application_exported_actions_activate_action_full;
362	iface->change_action_state_full = g_application_exported_actions_change_action_state_full;
363	}
364
365	static void
366	g_application_exported_actions_class_init (GApplicationExportedActionsClass *class)
367	{
368	}
369
370	static GActionGroup *
371	g_application_exported_actions_new (GApplication *application)
372	{
373	GApplicationExportedActions *actions;
374
375	actions = g_object_new (object_type: g_application_exported_actions_get_type (), NULL);
376	actions->application = application;
377
378	return G_ACTION_GROUP (actions);
379	}
380
381	/* Command line option handling {{{1 */
382
383	static void
384	free_option_entry (gpointer data)
385	{
386	GOptionEntry *entry = data;
387
388	switch (entry->arg)
389	{
390	case G_OPTION_ARG_STRING:
391	case G_OPTION_ARG_FILENAME:
392	g_free (mem: *(gchar **) entry->arg_data);
393	break;
394
395	case G_OPTION_ARG_STRING_ARRAY:
396	case G_OPTION_ARG_FILENAME_ARRAY:
397	g_strfreev (str_array: *(gchar ***) entry->arg_data);
398	break;
399
400	default:
401	/* most things require no free... */
402	break;
403	}
404
405	/* ...except for the space that we allocated for it ourselves */
406	g_free (mem: entry->arg_data);
407
408	g_slice_free (GOptionEntry, entry);
409	}
410
411	static void
412	g_application_pack_option_entries (GApplication *application,
413	GVariantDict *dict)
414	{
415	GHashTableIter iter;
416	gpointer item;
417
418	g_hash_table_iter_init (iter: &iter, hash_table: application->priv->packed_options);
419	while (g_hash_table_iter_next (iter: &iter, NULL, value: &item))
420	{
421	GOptionEntry *entry = item;
422	GVariant *value = NULL;
423
424	switch (entry->arg)
425	{
426	case G_OPTION_ARG_NONE:
427	if (*(gboolean *) entry->arg_data != 2)
428	value = g_variant_new_boolean (value: *(gboolean *) entry->arg_data);
429	break;
430
431	case G_OPTION_ARG_STRING:
432	if (*(gchar **) entry->arg_data)
433	value = g_variant_new_string (string: *(gchar **) entry->arg_data);
434	break;
435
436	case G_OPTION_ARG_INT:
437	if (*(gint32 *) entry->arg_data)
438	value = g_variant_new_int32 (value: *(gint32 *) entry->arg_data);
439	break;
440
441	case G_OPTION_ARG_FILENAME:
442	if (*(gchar **) entry->arg_data)
443	value = g_variant_new_bytestring (string: *(gchar **) entry->arg_data);
444	break;
445
446	case G_OPTION_ARG_STRING_ARRAY:
447	if (*(gchar ***) entry->arg_data)
448	value = g_variant_new_strv (strv: *(const gchar ***) entry->arg_data, length: -1);
449	break;
450
451	case G_OPTION_ARG_FILENAME_ARRAY:
452	if (*(gchar ***) entry->arg_data)
453	value = g_variant_new_bytestring_array (strv: *(const gchar ***) entry->arg_data, length: -1);
454	break;
455
456	case G_OPTION_ARG_DOUBLE:
457	if (*(gdouble *) entry->arg_data)
458	value = g_variant_new_double (value: *(gdouble *) entry->arg_data);
459	break;
460
461	case G_OPTION_ARG_INT64:
462	if (*(gint64 *) entry->arg_data)
463	value = g_variant_new_int64 (value: *(gint64 *) entry->arg_data);
464	break;
465
466	default:
467	g_assert_not_reached ();
468	}
469
470	if (value)
471	g_variant_dict_insert_value (dict, key: entry->long_name, value);
472	}
473	}
474
475	static GVariantDict *
476	g_application_parse_command_line (GApplication *application,
477	gchar ***arguments,
478	GError **error)
479	{
480	gboolean become_service = FALSE;
481	gchar *app_id = NULL;
482	gboolean replace = FALSE;
483	GVariantDict *dict = NULL;
484	GOptionContext *context;
485	GOptionGroup *gapplication_group;
486
487	/* Due to the memory management of GOptionGroup we can only parse
488	* options once. That's because once you add a group to the
489	* GOptionContext there is no way to get it back again. This is fine:
490	* local_command_line() should never get invoked more than once
491	* anyway. Add a sanity check just to be sure.
492	*/
493	g_return_val_if_fail (!application->priv->options_parsed, NULL);
494
495	context = g_option_context_new (parameter_string: application->priv->parameter_string);
496	g_option_context_set_summary (context, summary: application->priv->summary);
497	g_option_context_set_description (context, description: application->priv->description);
498
499	gapplication_group = g_option_group_new (name: "gapplication",
500	_("GApplication options"), _("Show GApplication options"),
501	NULL, NULL);
502	g_option_group_set_translation_domain (group: gapplication_group, GETTEXT_PACKAGE);
503	g_option_context_add_group (context, group: gapplication_group);
504
505	/* If the application has not registered local options and it has
506	* G_APPLICATION_HANDLES_COMMAND_LINE then we have to assume that
507	* their primary instance commandline handler may want to deal with
508	* the arguments. We must therefore ignore them.
509	*
510	* We must also ignore --help in this case since some applications
511	* will try to handle this from the remote side. See #737869.
512	*/
513	if (application->priv->main_options == NULL && (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE))
514	{
515	g_option_context_set_ignore_unknown_options (context, TRUE);
516	g_option_context_set_help_enabled (context, FALSE);
517	}
518
519	/* Add the main option group, if it exists */
520	if (application->priv->main_options)
521	{
522	/* This consumes the main_options */
523	g_option_context_set_main_group (context, group: application->priv->main_options);
524	application->priv->main_options = NULL;
525	}
526
527	/* Add any other option groups if they exist. Adding them to the
528	* context will consume them, so we free the list as we go...
529	*/
530	while (application->priv->option_groups)
531	{
532	g_option_context_add_group (context, group: application->priv->option_groups->data);
533	application->priv->option_groups = g_slist_delete_link (list: application->priv->option_groups,
534	link_: application->priv->option_groups);
535	}
536
537	/* In the case that we are not explicitly marked as a service or a
538	* launcher then we want to add the "--gapplication-service" option to
539	* allow the process to be made into a service.
540	*/
541	if ((application->priv->flags & (G_APPLICATION_IS_SERVICE | G_APPLICATION_IS_LAUNCHER)) == 0)
542	{
543	GOptionEntry entries[] = {
544	{ "gapplication-service", '\0', 0, G_OPTION_ARG_NONE, &become_service,
545	N_("Enter GApplication service mode (use from D-Bus service files)"), NULL },
546	{ NULL }
547	};
548
549	g_option_group_add_entries (group: gapplication_group, entries);
550	}
551
552	/* Allow overriding the ID if the application allows it */
553	if (application->priv->flags & G_APPLICATION_CAN_OVERRIDE_APP_ID)
554	{
555	GOptionEntry entries[] = {
556	{ "gapplication-app-id", '\0', 0, G_OPTION_ARG_STRING, &app_id,
557	N_("Override the application’s ID"), NULL },
558	{ NULL }
559	};
560
561	g_option_group_add_entries (group: gapplication_group, entries);
562	}
563
564	/* Allow replacing if the application allows it */
565	if (application->priv->flags & G_APPLICATION_ALLOW_REPLACEMENT)
566	{
567	GOptionEntry entries[] = {
568	{ "gapplication-replace", '\0', 0, G_OPTION_ARG_NONE, &replace,
569	N_("Replace the running instance"), NULL },
570	{ NULL }
571	};
572
573	g_option_group_add_entries (group: gapplication_group, entries);
574	}
575
576	/* Now we parse... */
577	if (!g_option_context_parse_strv (context, arguments, error))
578	goto out;
579
580	/* Check for --gapplication-service */
581	if (become_service)
582	application->priv->flags |= G_APPLICATION_IS_SERVICE;
583
584	/* Check for --gapplication-app-id */
585	if (app_id)
586	g_application_set_application_id (application, application_id: app_id);
587
588	/* Check for --gapplication-replace */
589	if (replace)
590	application->priv->flags |= G_APPLICATION_REPLACE;
591
592	dict = g_variant_dict_new (NULL);
593	if (application->priv->packed_options)
594	{
595	g_application_pack_option_entries (application, dict);
596	g_hash_table_unref (hash_table: application->priv->packed_options);
597	application->priv->packed_options = NULL;
598	}
599
600	out:
601	/* Make sure we don't run again */
602	application->priv->options_parsed = TRUE;
603
604	g_option_context_free (context);
605	g_free (mem: app_id);
606
607	return dict;
608	}
609
610	static void
611	add_packed_option (GApplication *application,
612	GOptionEntry *entry)
613	{
614	switch (entry->arg)
615	{
616	case G_OPTION_ARG_NONE:
617	entry->arg_data = g_new (gboolean, 1);
618	*(gboolean *) entry->arg_data = 2;
619	break;
620
621	case G_OPTION_ARG_INT:
622	entry->arg_data = g_new0 (gint, 1);
623	break;
624
625	case G_OPTION_ARG_STRING:
626	case G_OPTION_ARG_FILENAME:
627	case G_OPTION_ARG_STRING_ARRAY:
628	case G_OPTION_ARG_FILENAME_ARRAY:
629	entry->arg_data = g_new0 (gpointer, 1);
630	break;
631
632	case G_OPTION_ARG_INT64:
633	entry->arg_data = g_new0 (gint64, 1);
634	break;
635
636	case G_OPTION_ARG_DOUBLE:
637	entry->arg_data = g_new0 (gdouble, 1);
638	break;
639
640	default:
641	g_return_if_reached ();
642	}
643
644	if (!application->priv->packed_options)
645	application->priv->packed_options = g_hash_table_new_full (hash_func: g_str_hash, key_equal_func: g_str_equal, key_destroy_func: g_free, value_destroy_func: free_option_entry);
646
647	g_hash_table_insert (hash_table: application->priv->packed_options,
648	key: g_strdup (str: entry->long_name),
649	g_slice_dup (GOptionEntry, entry));
650	}
651
652	/**
653	* g_application_add_main_option_entries:
654	* @application: a #GApplication
655	* @entries: (array zero-terminated=1) (element-type GOptionEntry) a
656	* %NULL-terminated list of #GOptionEntrys
657	*
658	* Adds main option entries to be handled by @application.
659	*
660	* This function is comparable to g_option_context_add_main_entries().
661	*
662	* After the commandline arguments are parsed, the
663	* #GApplication::handle-local-options signal will be emitted. At this
664	* point, the application can inspect the values pointed to by @arg_data
665	* in the given #GOptionEntrys.
666	*
667	* Unlike #GOptionContext, #GApplication supports giving a %NULL
668	* @arg_data for a non-callback #GOptionEntry. This results in the
669	* argument in question being packed into a #GVariantDict which is also
670	* passed to #GApplication::handle-local-options, where it can be
671	* inspected and modified. If %G_APPLICATION_HANDLES_COMMAND_LINE is
672	* set, then the resulting dictionary is sent to the primary instance,
673	* where g_application_command_line_get_options_dict() will return it.
674	* This "packing" is done according to the type of the argument --
675	* booleans for normal flags, strings for strings, bytestrings for
676	* filenames, etc. The packing only occurs if the flag is given (ie: we
677	* do not pack a "false" #GVariant in the case that a flag is missing).
678	*
679	* In general, it is recommended that all commandline arguments are
680	* parsed locally. The options dictionary should then be used to
681	* transmit the result of the parsing to the primary instance, where
682	* g_variant_dict_lookup() can be used. For local options, it is
683	* possible to either use @arg_data in the usual way, or to consult (and
684	* potentially remove) the option from the options dictionary.
685	*
686	* This function is new in GLib 2.40. Before then, the only real choice
687	* was to send all of the commandline arguments (options and all) to the
688	* primary instance for handling. #GApplication ignored them completely
689	* on the local side. Calling this function "opts in" to the new
690	* behaviour, and in particular, means that unrecognised options will be
691	* treated as errors. Unrecognised options have never been ignored when
692	* %G_APPLICATION_HANDLES_COMMAND_LINE is unset.
693	*
694	* If #GApplication::handle-local-options needs to see the list of
695	* filenames, then the use of %G_OPTION_REMAINING is recommended. If
696	* @arg_data is %NULL then %G_OPTION_REMAINING can be used as a key into
697	* the options dictionary. If you do use %G_OPTION_REMAINING then you
698	* need to handle these arguments for yourself because once they are
699	* consumed, they will no longer be visible to the default handling
700	* (which treats them as filenames to be opened).
701	*
702	* It is important to use the proper GVariant format when retrieving
703	* the options with g_variant_dict_lookup():
704	* - for %G_OPTION_ARG_NONE, use `b`
705	* - for %G_OPTION_ARG_STRING, use `&s`
706	* - for %G_OPTION_ARG_INT, use `i`
707	* - for %G_OPTION_ARG_INT64, use `x`
708	* - for %G_OPTION_ARG_DOUBLE, use `d`
709	* - for %G_OPTION_ARG_FILENAME, use `^&ay`
710	* - for %G_OPTION_ARG_STRING_ARRAY, use `^a&s`
711	* - for %G_OPTION_ARG_FILENAME_ARRAY, use `^a&ay`
712	*
713	* Since: 2.40
714	*/
715	void
716	g_application_add_main_option_entries (GApplication *application,
717	const GOptionEntry *entries)
718	{
719	gint i;
720
721	g_return_if_fail (G_IS_APPLICATION (application));
722	g_return_if_fail (entries != NULL);
723
724	if (!application->priv->main_options)
725	{
726	application->priv->main_options = g_option_group_new (NULL, NULL, NULL, NULL, NULL);
727	g_option_group_set_translation_domain (group: application->priv->main_options, NULL);
728	}
729
730	for (i = 0; entries[i].long_name; i++)
731	{
732	GOptionEntry my_entries[2] = { { NULL }, { NULL } };
733	my_entries[0] = entries[i];
734
735	if (!my_entries[0].arg_data)
736	add_packed_option (application, entry: &my_entries[0]);
737
738	g_option_group_add_entries (group: application->priv->main_options, entries: my_entries);
739	}
740	}
741
742	/**
743	* g_application_add_main_option:
744	* @application: the #GApplication
745	* @long_name: the long name of an option used to specify it in a commandline
746	* @short_name: the short name of an option
747	* @flags: flags from #GOptionFlags
748	* @arg: the type of the option, as a #GOptionArg
749	* @description: the description for the option in `--help` output
750	* @arg_description: (nullable): the placeholder to use for the extra argument
751	* parsed by the option in `--help` output
752	*
753	* Add an option to be handled by @application.
754	*
755	* Calling this function is the equivalent of calling
756	* g_application_add_main_option_entries() with a single #GOptionEntry
757	* that has its arg_data member set to %NULL.
758	*
759	* The parsed arguments will be packed into a #GVariantDict which
760	* is passed to #GApplication::handle-local-options. If
761	* %G_APPLICATION_HANDLES_COMMAND_LINE is set, then it will also
762	* be sent to the primary instance. See
763	* g_application_add_main_option_entries() for more details.
764	*
765	* See #GOptionEntry for more documentation of the arguments.
766	*
767	* Since: 2.42
768	**/
769	void
770	g_application_add_main_option (GApplication *application,
771	const char *long_name,
772	char short_name,
773	GOptionFlags flags,
774	GOptionArg arg,
775	const char *description,
776	const char *arg_description)
777	{
778	gchar *dup_string;
779	GOptionEntry my_entry[2] = {
780	{ NULL, short_name, flags, arg, NULL, NULL, NULL },
781	{ NULL }
782	};
783
784	g_return_if_fail (G_IS_APPLICATION (application));
785	g_return_if_fail (long_name != NULL);
786	g_return_if_fail (description != NULL);
787
788	my_entry[0].long_name = dup_string = g_strdup (str: long_name);
789	application->priv->option_strings = g_slist_prepend (list: application->priv->option_strings, data: dup_string);
790
791	my_entry[0].description = dup_string = g_strdup (str: description);
792	application->priv->option_strings = g_slist_prepend (list: application->priv->option_strings, data: dup_string);
793
794	my_entry[0].arg_description = dup_string = g_strdup (str: arg_description);
795	application->priv->option_strings = g_slist_prepend (list: application->priv->option_strings, data: dup_string);
796
797	g_application_add_main_option_entries (application, entries: my_entry);
798	}
799
800	/**
801	* g_application_add_option_group:
802	* @application: the #GApplication
803	* @group: (transfer full): a #GOptionGroup
804	*
805	* Adds a #GOptionGroup to the commandline handling of @application.
806	*
807	* This function is comparable to g_option_context_add_group().
808	*
809	* Unlike g_application_add_main_option_entries(), this function does
810	* not deal with %NULL @arg_data and never transmits options to the
811	* primary instance.
812	*
813	* The reason for that is because, by the time the options arrive at the
814	* primary instance, it is typically too late to do anything with them.
815	* Taking the GTK option group as an example: GTK will already have been
816	* initialised by the time the #GApplication::command-line handler runs.
817	* In the case that this is not the first-running instance of the
818	* application, the existing instance may already have been running for
819	* a very long time.
820	*
821	* This means that the options from #GOptionGroup are only really usable
822	* in the case that the instance of the application being run is the
823	* first instance. Passing options like `--display=` or `--gdk-debug=`
824	* on future runs will have no effect on the existing primary instance.
825	*
826	* Calling this function will cause the options in the supplied option
827	* group to be parsed, but it does not cause you to be "opted in" to the
828	* new functionality whereby unrecognised options are rejected even if
829	* %G_APPLICATION_HANDLES_COMMAND_LINE was given.
830	*
831	* Since: 2.40
832	**/
833	void
834	g_application_add_option_group (GApplication *application,
835	GOptionGroup *group)
836	{
837	g_return_if_fail (G_IS_APPLICATION (application));
838	g_return_if_fail (group != NULL);
839
840	application->priv->option_groups = g_slist_prepend (list: application->priv->option_groups, data: group);
841	}
842
843	/**
844	* g_application_set_option_context_parameter_string:
845	* @application: the #GApplication
846	* @parameter_string: (nullable): a string which is displayed
847	* in the first line of `--help` output, after the usage summary `programname [OPTION...]`.
848	*
849	* Sets the parameter string to be used by the commandline handling of @application.
850	*
851	* This function registers the argument to be passed to g_option_context_new()
852	* when the internal #GOptionContext of @application is created.
853	*
854	* See g_option_context_new() for more information about @parameter_string.
855	*
856	* Since: 2.56
857	*/
858	void
859	g_application_set_option_context_parameter_string (GApplication *application,
860	const gchar *parameter_string)
861	{
862	g_return_if_fail (G_IS_APPLICATION (application));
863
864	g_free (mem: application->priv->parameter_string);
865	application->priv->parameter_string = g_strdup (str: parameter_string);
866	}
867
868	/**
869	* g_application_set_option_context_summary:
870	* @application: the #GApplication
871	* @summary: (nullable): a string to be shown in `--help` output
872	* before the list of options, or %NULL
873	*
874	* Adds a summary to the @application option context.
875	*
876	* See g_option_context_set_summary() for more information.
877	*
878	* Since: 2.56
879	*/
880	void
881	g_application_set_option_context_summary (GApplication *application,
882	const gchar *summary)
883	{
884	g_return_if_fail (G_IS_APPLICATION (application));
885
886	g_free (mem: application->priv->summary);
887	application->priv->summary = g_strdup (str: summary);
888	}
889
890	/**
891	* g_application_set_option_context_description:
892	* @application: the #GApplication
893	* @description: (nullable): a string to be shown in `--help` output
894	* after the list of options, or %NULL
895	*
896	* Adds a description to the @application option context.
897	*
898	* See g_option_context_set_description() for more information.
899	*
900	* Since: 2.56
901	*/
902	void
903	g_application_set_option_context_description (GApplication *application,
904	const gchar *description)
905	{
906	g_return_if_fail (G_IS_APPLICATION (application));
907
908	g_free (mem: application->priv->description);
909	application->priv->description = g_strdup (str: description);
910
911	}
912
913
914	/* vfunc defaults {{{1 */
915	static void
916	g_application_real_before_emit (GApplication *application,
917	GVariant *platform_data)
918	{
919	}
920
921	static void
922	g_application_real_after_emit (GApplication *application,
923	GVariant *platform_data)
924	{
925	}
926
927	static void
928	g_application_real_startup (GApplication *application)
929	{
930	application->priv->did_startup = TRUE;
931	}
932
933	static void
934	g_application_real_shutdown (GApplication *application)
935	{
936	application->priv->did_shutdown = TRUE;
937	}
938
939	static void
940	g_application_real_activate (GApplication *application)
941	{
942	if (!g_signal_has_handler_pending (instance: application,
943	signal_id: g_application_signals[SIGNAL_ACTIVATE],
944	detail: 0, TRUE) &&
945	G_APPLICATION_GET_CLASS (application)->activate == g_application_real_activate)
946	{
947	static gboolean warned;
948
949	if (warned)
950	return;
951
952	g_warning ("Your application does not implement "
953	"g_application_activate() and has no handlers connected "
954	"to the 'activate' signal. It should do one of these.");
955	warned = TRUE;
956	}
957	}
958
959	static void
960	g_application_real_open (GApplication *application,
961	GFile **files,
962	gint n_files,
963	const gchar *hint)
964	{
965	if (!g_signal_has_handler_pending (instance: application,
966	signal_id: g_application_signals[SIGNAL_OPEN],
967	detail: 0, TRUE) &&
968	G_APPLICATION_GET_CLASS (application)->open == g_application_real_open)
969	{
970	static gboolean warned;
971
972	if (warned)
973	return;
974
975	g_warning ("Your application claims to support opening files "
976	"but does not implement g_application_open() and has no "
977	"handlers connected to the 'open' signal.");
978	warned = TRUE;
979	}
980	}
981
982	static int
983	g_application_real_command_line (GApplication *application,
984	GApplicationCommandLine *cmdline)
985	{
986	if (!g_signal_has_handler_pending (instance: application,
987	signal_id: g_application_signals[SIGNAL_COMMAND_LINE],
988	detail: 0, TRUE) &&
989	G_APPLICATION_GET_CLASS (application)->command_line == g_application_real_command_line)
990	{
991	static gboolean warned;
992
993	if (warned)
994	return 1;
995
996	g_warning ("Your application claims to support custom command line "
997	"handling but does not implement g_application_command_line() "
998	"and has no handlers connected to the 'command-line' signal.");
999
1000	warned = TRUE;
1001	}
1002
1003	return 1;
1004	}
1005
1006	static gint
1007	g_application_real_handle_local_options (GApplication *application,
1008	GVariantDict *options)
1009	{
1010	return -1;
1011	}
1012
1013	static GVariant *
1014	get_platform_data (GApplication *application,
1015	GVariant *options)
1016	{
1017	GVariantBuilder *builder;
1018	GVariant *result;
1019
1020	builder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}"));
1021
1022	{
1023	gchar *cwd = g_get_current_dir ();
1024	g_variant_builder_add (builder, format_string: "{sv}", "cwd",
1025	g_variant_new_bytestring (string: cwd));
1026	g_free (mem: cwd);
1027	}
1028
1029	if (application->priv->flags & G_APPLICATION_SEND_ENVIRONMENT)
1030	{
1031	GVariant *array;
1032	gchar **envp;
1033
1034	envp = g_get_environ ();
1035	array = g_variant_new_bytestring_array (strv: (const gchar **) envp, length: -1);
1036	g_strfreev (str_array: envp);
1037
1038	g_variant_builder_add (builder, format_string: "{sv}", "environ", array);
1039	}
1040
1041	if (options)
1042	g_variant_builder_add (builder, format_string: "{sv}", "options", options);
1043
1044	G_APPLICATION_GET_CLASS (application)->
1045	add_platform_data (application, builder);
1046
1047	result = g_variant_builder_end (builder);
1048	g_variant_builder_unref (builder);
1049
1050	return result;
1051	}
1052
1053	static void
1054	g_application_call_command_line (GApplication *application,
1055	const gchar * const *arguments,
1056	GVariant *options,
1057	gint *exit_status)
1058	{
1059	if (application->priv->is_remote)
1060	{
1061	GVariant *platform_data;
1062
1063	platform_data = get_platform_data (application, options);
1064	*exit_status = g_application_impl_command_line (impl: application->priv->impl, arguments, platform_data);
1065	}
1066	else
1067	{
1068	GApplicationCommandLine *cmdline;
1069	GVariant *v;
1070
1071	v = g_variant_new_bytestring_array (strv: (const gchar **) arguments, length: -1);
1072	cmdline = g_object_new (G_TYPE_APPLICATION_COMMAND_LINE,
1073	first_property_name: "arguments", v,
1074	"options", options,
1075	NULL);
1076	g_signal_emit (instance: application, signal_id: g_application_signals[SIGNAL_COMMAND_LINE], detail: 0, cmdline, exit_status);
1077	g_object_unref (object: cmdline);
1078	}
1079	}
1080
1081	static gboolean
1082	g_application_real_local_command_line (GApplication *application,
1083	gchar ***arguments,
1084	int *exit_status)
1085	{
1086	GError *error = NULL;
1087	GVariantDict *options;
1088	gint n_args;
1089
1090	options = g_application_parse_command_line (application, arguments, error: &error);
1091	if (!options)
1092	{
1093	g_printerr (format: "%s\n", error->message);
1094	g_error_free (error);
1095	*exit_status = 1;
1096	return TRUE;
1097	}
1098
1099	g_signal_emit (instance: application, signal_id: g_application_signals[SIGNAL_HANDLE_LOCAL_OPTIONS], detail: 0, options, exit_status);
1100
1101	if (*exit_status >= 0)
1102	{
1103	g_variant_dict_unref (dict: options);
1104	return TRUE;
1105	}
1106
1107	if (!g_application_register (application, NULL, error: &error))
1108	{
1109	g_printerr (format: "Failed to register: %s\n", error->message);
1110	g_variant_dict_unref (dict: options);
1111	g_error_free (error);
1112	*exit_status = 1;
1113	return TRUE;
1114	}
1115
1116	n_args = g_strv_length (str_array: *arguments);
1117
1118	if (application->priv->flags & G_APPLICATION_IS_SERVICE)
1119	{
1120	if ((*exit_status = n_args > 1))
1121	{
1122	g_printerr (format: "GApplication service mode takes no arguments.\n");
1123	application->priv->flags &= ~G_APPLICATION_IS_SERVICE;
1124	*exit_status = 1;
1125	}
1126	else
1127	*exit_status = 0;
1128	}
1129	else if (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE)
1130	{
1131	g_application_call_command_line (application,
1132	arguments: (const gchar **) *arguments,
1133	options: g_variant_dict_end (dict: options),
1134	exit_status);
1135	}
1136	else
1137	{
1138	if (n_args <= 1)
1139	{
1140	g_application_activate (application);
1141	*exit_status = 0;
1142	}
1143
1144	else
1145	{
1146	if (~application->priv->flags & G_APPLICATION_HANDLES_OPEN)
1147	{
1148	g_critical ("This application can not open files.");
1149	*exit_status = 1;
1150	}
1151	else
1152	{
1153	GFile **files;
1154	gint n_files;
1155	gint i;
1156
1157	n_files = n_args - 1;
1158	files = g_new (GFile *, n_files);
1159
1160	for (i = 0; i < n_files; i++)
1161	files[i] = g_file_new_for_commandline_arg (arg: (*arguments)[i + 1]);
1162
1163	g_application_open (application, files, n_files, hint: "");
1164
1165	for (i = 0; i < n_files; i++)
1166	g_object_unref (object: files[i]);
1167	g_free (mem: files);
1168
1169	*exit_status = 0;
1170	}
1171	}
1172	}
1173
1174	g_variant_dict_unref (dict: options);
1175
1176	return TRUE;
1177	}
1178
1179	static void
1180	g_application_real_add_platform_data (GApplication *application,
1181	GVariantBuilder *builder)
1182	{
1183	}
1184
1185	static gboolean
1186	g_application_real_dbus_register (GApplication *application,
1187	GDBusConnection *connection,
1188	const gchar *object_path,
1189	GError **error)
1190	{
1191	return TRUE;
1192	}
1193
1194	static void
1195	g_application_real_dbus_unregister (GApplication *application,
1196	GDBusConnection *connection,
1197	const gchar *object_path)
1198	{
1199	}
1200
1201	static gboolean
1202	g_application_real_name_lost (GApplication *application)
1203	{
1204	g_application_quit (application);
1205	return TRUE;
1206	}
1207
1208	/* GObject implementation stuff {{{1 */
1209	static void
1210	g_application_set_property (GObject *object,
1211	guint prop_id,
1212	const GValue *value,
1213	GParamSpec *pspec)
1214	{
1215	GApplication *application = G_APPLICATION (object);
1216
1217	switch (prop_id)
1218	{
1219	case PROP_APPLICATION_ID:
1220	g_application_set_application_id (application,
1221	application_id: g_value_get_string (value));
1222	break;
1223
1224	case PROP_FLAGS:
1225	g_application_set_flags (application, flags: g_value_get_flags (value));
1226	break;
1227
1228	case PROP_RESOURCE_BASE_PATH:
1229	g_application_set_resource_base_path (application, resource_path: g_value_get_string (value));
1230	break;
1231
1232	case PROP_INACTIVITY_TIMEOUT:
1233	g_application_set_inactivity_timeout (application,
1234	inactivity_timeout: g_value_get_uint (value));
1235	break;
1236
1237	case PROP_ACTION_GROUP:
1238	g_clear_object (&application->priv->actions);
1239	application->priv->actions = g_value_dup_object (value);
1240	break;
1241
1242	default:
1243	g_assert_not_reached ();
1244	}
1245	}
1246
1247	/**
1248	* g_application_set_action_group:
1249	* @application: a #GApplication
1250	* @action_group: (nullable): a #GActionGroup, or %NULL
1251	*
1252	* This used to be how actions were associated with a #GApplication.
1253	* Now there is #GActionMap for that.
1254	*
1255	* Since: 2.28
1256	*
1257	* Deprecated:2.32:Use the #GActionMap interface instead. Never ever
1258	* mix use of this API with use of #GActionMap on the same @application
1259	* or things will go very badly wrong. This function is known to
1260	* introduce buggy behaviour (ie: signals not emitted on changes to the
1261	* action group), so you should really use #GActionMap instead.
1262	**/
1263	void
1264	g_application_set_action_group (GApplication *application,
1265	GActionGroup *action_group)
1266	{
1267	g_return_if_fail (G_IS_APPLICATION (application));
1268	g_return_if_fail (!application->priv->is_registered);
1269
1270	if (application->priv->actions != NULL)
1271	g_object_unref (object: application->priv->actions);
1272
1273	application->priv->actions = action_group;
1274
1275	if (application->priv->actions != NULL)
1276	g_object_ref (application->priv->actions);
1277	}
1278
1279	static void
1280	g_application_get_property (GObject *object,
1281	guint prop_id,
1282	GValue *value,
1283	GParamSpec *pspec)
1284	{
1285	GApplication *application = G_APPLICATION (object);
1286
1287	switch (prop_id)
1288	{
1289	case PROP_APPLICATION_ID:
1290	g_value_set_string (value,
1291	v_string: g_application_get_application_id (application));
1292	break;
1293
1294	case PROP_FLAGS:
1295	g_value_set_flags (value,
1296	v_flags: g_application_get_flags (application));
1297	break;
1298
1299	case PROP_RESOURCE_BASE_PATH:
1300	g_value_set_string (value, v_string: g_application_get_resource_base_path (application));
1301	break;
1302
1303	case PROP_IS_REGISTERED:
1304	g_value_set_boolean (value,
1305	v_boolean: g_application_get_is_registered (application));
1306	break;
1307
1308	case PROP_IS_REMOTE:
1309	g_value_set_boolean (value,
1310	v_boolean: g_application_get_is_remote (application));
1311	break;
1312
1313	case PROP_INACTIVITY_TIMEOUT:
1314	g_value_set_uint (value,
1315	v_uint: g_application_get_inactivity_timeout (application));
1316	break;
1317
1318	case PROP_IS_BUSY:
1319	g_value_set_boolean (value, v_boolean: g_application_get_is_busy (application));
1320	break;
1321
1322	default:
1323	g_assert_not_reached ();
1324	}
1325	}
1326
1327	static void
1328	g_application_constructed (GObject *object)
1329	{
1330	GApplication *application = G_APPLICATION (object);
1331
1332	if (g_application_get_default () == NULL)
1333	g_application_set_default (application);
1334
1335	/* People should not set properties from _init... */
1336	g_assert (application->priv->resource_path == NULL);
1337
1338	if (application->priv->id != NULL)
1339	{
1340	gint i;
1341
1342	application->priv->resource_path = g_strconcat (string1: "/", application->priv->id, NULL);
1343
1344	for (i = 1; application->priv->resource_path[i]; i++)
1345	if (application->priv->resource_path[i] == '.')
1346	application->priv->resource_path[i] = '/';
1347	}
1348	}
1349
1350	static void
1351	g_application_dispose (GObject *object)
1352	{
1353	GApplication *application = G_APPLICATION (object);
1354
1355	if (application->priv->impl != NULL &&
1356	G_APPLICATION_GET_CLASS (application)->dbus_unregister != g_application_real_dbus_unregister)
1357	{
1358	static gboolean warned;
1359
1360	if (!warned)
1361	{
1362	g_warning ("Your application did not unregister from D-Bus before destruction. "
1363	"Consider using g_application_run().");
1364	}
1365
1366	warned = TRUE;
1367	}
1368
1369	G_OBJECT_CLASS (g_application_parent_class)->dispose (object);
1370	}
1371
1372	static void
1373	g_application_finalize (GObject *object)
1374	{
1375	GApplication *application = G_APPLICATION (object);
1376
1377	if (application->priv->inactivity_timeout_id)
1378	g_source_remove (tag: application->priv->inactivity_timeout_id);
1379
1380	g_slist_free_full (list: application->priv->option_groups, free_func: (GDestroyNotify) g_option_group_unref);
1381	if (application->priv->main_options)
1382	g_option_group_unref (group: application->priv->main_options);
1383	if (application->priv->packed_options)
1384	g_hash_table_unref (hash_table: application->priv->packed_options);
1385
1386	g_free (mem: application->priv->parameter_string);
1387	g_free (mem: application->priv->summary);
1388	g_free (mem: application->priv->description);
1389
1390	g_slist_free_full (list: application->priv->option_strings, free_func: g_free);
1391
1392	if (application->priv->impl)
1393	g_application_impl_destroy (impl: application->priv->impl);
1394	g_free (mem: application->priv->id);
1395
1396	if (g_application_get_default () == application)
1397	g_application_set_default (NULL);
1398
1399	if (application->priv->actions)
1400	g_object_unref (object: application->priv->actions);
1401
1402	g_clear_object (&application->priv->remote_actions);
1403
1404	if (application->priv->notifications)
1405	g_object_unref (object: application->priv->notifications);
1406
1407	g_free (mem: application->priv->resource_path);
1408
1409	G_OBJECT_CLASS (g_application_parent_class)
1410	->finalize (object);
1411	}
1412
1413	static void
1414	g_application_init (GApplication *application)
1415	{
1416	application->priv = g_application_get_instance_private (self: application);
1417
1418	application->priv->actions = g_application_exported_actions_new (application);
1419
1420	/* application->priv->actions is the one and only ref on the group, so when
1421	* we dispose, the action group will die, disconnecting all signals.
1422	*/
1423	g_signal_connect_swapped (application->priv->actions, "action-added",
1424	G_CALLBACK (g_action_group_action_added), application);
1425	g_signal_connect_swapped (application->priv->actions, "action-enabled-changed",
1426	G_CALLBACK (g_action_group_action_enabled_changed), application);
1427	g_signal_connect_swapped (application->priv->actions, "action-state-changed",
1428	G_CALLBACK (g_action_group_action_state_changed), application);
1429	g_signal_connect_swapped (application->priv->actions, "action-removed",
1430	G_CALLBACK (g_action_group_action_removed), application);
1431	}
1432
1433	static gboolean
1434	g_application_handle_local_options_accumulator (GSignalInvocationHint *ihint,
1435	GValue *return_accu,
1436	const GValue *handler_return,
1437	gpointer dummy)
1438	{
1439	gint value;
1440
1441	value = g_value_get_int (value: handler_return);
1442	g_value_set_int (value: return_accu, v_int: value);
1443
1444	return value < 0;
1445	}
1446
1447	static void
1448	g_application_class_init (GApplicationClass *class)
1449	{
1450	GObjectClass *object_class = G_OBJECT_CLASS (class);
1451
1452	object_class->constructed = g_application_constructed;
1453	object_class->dispose = g_application_dispose;
1454	object_class->finalize = g_application_finalize;
1455	object_class->get_property = g_application_get_property;
1456	object_class->set_property = g_application_set_property;
1457
1458	class->before_emit = g_application_real_before_emit;
1459	class->after_emit = g_application_real_after_emit;
1460	class->startup = g_application_real_startup;
1461	class->shutdown = g_application_real_shutdown;
1462	class->activate = g_application_real_activate;
1463	class->open = g_application_real_open;
1464	class->command_line = g_application_real_command_line;
1465	class->local_command_line = g_application_real_local_command_line;
1466	class->handle_local_options = g_application_real_handle_local_options;
1467	class->add_platform_data = g_application_real_add_platform_data;
1468	class->dbus_register = g_application_real_dbus_register;
1469	class->dbus_unregister = g_application_real_dbus_unregister;
1470	class->name_lost = g_application_real_name_lost;
1471
1472	g_object_class_install_property (oclass: object_class, property_id: PROP_APPLICATION_ID,
1473	pspec: g_param_spec_string (name: "application-id",
1474	P_("Application identifier"),
1475	P_("The unique identifier for the application"),
1476	NULL, flags: G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
1477	G_PARAM_STATIC_STRINGS));
1478
1479	g_object_class_install_property (oclass: object_class, property_id: PROP_FLAGS,
1480	pspec: g_param_spec_flags (name: "flags",
1481	P_("Application flags"),
1482	P_("Flags specifying the behaviour of the application"),
1483	flags_type: G_TYPE_APPLICATION_FLAGS, default_value: G_APPLICATION_FLAGS_NONE,
1484	flags: G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1485
1486	g_object_class_install_property (oclass: object_class, property_id: PROP_RESOURCE_BASE_PATH,
1487	pspec: g_param_spec_string (name: "resource-base-path",
1488	P_("Resource base path"),
1489	P_("The base resource path for the application"),
1490	NULL, flags: G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1491
1492	g_object_class_install_property (oclass: object_class, property_id: PROP_IS_REGISTERED,
1493	pspec: g_param_spec_boolean (name: "is-registered",
1494	P_("Is registered"),
1495	P_("If g_application_register() has been called"),
1496	FALSE, flags: G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
1497
1498	g_object_class_install_property (oclass: object_class, property_id: PROP_IS_REMOTE,
1499	pspec: g_param_spec_boolean (name: "is-remote",
1500	P_("Is remote"),
1501	P_("If this application instance is remote"),
1502	FALSE, flags: G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
1503
1504	g_object_class_install_property (oclass: object_class, property_id: PROP_INACTIVITY_TIMEOUT,
1505	pspec: g_param_spec_uint (name: "inactivity-timeout",
1506	P_("Inactivity timeout"),
1507	P_("Time (ms) to stay alive after becoming idle"),
1508	minimum: 0, G_MAXUINT, default_value: 0,
1509	flags: G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1510
1511	g_object_class_install_property (oclass: object_class, property_id: PROP_ACTION_GROUP,
1512	pspec: g_param_spec_object (name: "action-group",
1513	P_("Action group"),
1514	P_("The group of actions that the application exports"),
1515	G_TYPE_ACTION_GROUP,
1516	flags: G_PARAM_DEPRECATED | G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
1517
1518	/**
1519	* GApplication:is-busy:
1520	*
1521	* Whether the application is currently marked as busy through
1522	* g_application_mark_busy() or g_application_bind_busy_property().
1523	*
1524	* Since: 2.44
1525	*/
1526	g_object_class_install_property (oclass: object_class, property_id: PROP_IS_BUSY,
1527	pspec: g_param_spec_boolean (name: "is-busy",
1528	P_("Is busy"),
1529	P_("If this application is currently marked busy"),
1530	FALSE, flags: G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
1531
1532	/**
1533	* GApplication::startup:
1534	* @application: the application
1535	*
1536	* The ::startup signal is emitted on the primary instance immediately
1537	* after registration. See g_application_register().
1538	*/
1539	g_application_signals[SIGNAL_STARTUP] =
1540	g_signal_new (I_("startup"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_FIRST,
1541	G_STRUCT_OFFSET (GApplicationClass, startup),
1542	NULL, NULL, NULL, G_TYPE_NONE, n_params: 0);
1543
1544	/**
1545	* GApplication::shutdown:
1546	* @application: the application
1547	*
1548	* The ::shutdown signal is emitted only on the registered primary instance
1549	* immediately after the main loop terminates.
1550	*/
1551	g_application_signals[SIGNAL_SHUTDOWN] =
1552	g_signal_new (I_("shutdown"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_LAST,
1553	G_STRUCT_OFFSET (GApplicationClass, shutdown),
1554	NULL, NULL, NULL, G_TYPE_NONE, n_params: 0);
1555
1556	/**
1557	* GApplication::activate:
1558	* @application: the application
1559	*
1560	* The ::activate signal is emitted on the primary instance when an
1561	* activation occurs. See g_application_activate().
1562	*/
1563	g_application_signals[SIGNAL_ACTIVATE] =
1564	g_signal_new (I_("activate"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_LAST,
1565	G_STRUCT_OFFSET (GApplicationClass, activate),
1566	NULL, NULL, NULL, G_TYPE_NONE, n_params: 0);
1567
1568
1569	/**
1570	* GApplication::open:
1571	* @application: the application
1572	* @files: (array length=n_files) (element-type GFile): an array of #GFiles
1573	* @n_files: the length of @files
1574	* @hint: a hint provided by the calling instance
1575	*
1576	* The ::open signal is emitted on the primary instance when there are
1577	* files to open. See g_application_open() for more information.
1578	*/
1579	g_application_signals[SIGNAL_OPEN] =
1580	g_signal_new (I_("open"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_LAST,
1581	G_STRUCT_OFFSET (GApplicationClass, open),
1582	NULL, NULL,
1583	c_marshaller: _g_cclosure_marshal_VOID__POINTER_INT_STRING,
1584	G_TYPE_NONE, n_params: 3, G_TYPE_POINTER, G_TYPE_INT, G_TYPE_STRING);
1585	g_signal_set_va_marshaller (signal_id: g_application_signals[SIGNAL_OPEN],
1586	G_TYPE_FROM_CLASS (class),
1587	va_marshaller: _g_cclosure_marshal_VOID__POINTER_INT_STRINGv);
1588
1589	/**
1590	* GApplication::command-line:
1591	* @application: the application
1592	* @command_line: a #GApplicationCommandLine representing the
1593	* passed commandline
1594	*
1595	* The ::command-line signal is emitted on the primary instance when
1596	* a commandline is not handled locally. See g_application_run() and
1597	* the #GApplicationCommandLine documentation for more information.
1598	*
1599	* Returns: An integer that is set as the exit status for the calling
1600	* process. See g_application_command_line_set_exit_status().
1601	*/
1602	g_application_signals[SIGNAL_COMMAND_LINE] =
1603	g_signal_new (I_("command-line"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_LAST,
1604	G_STRUCT_OFFSET (GApplicationClass, command_line),
1605	accumulator: g_signal_accumulator_first_wins, NULL,
1606	c_marshaller: _g_cclosure_marshal_INT__OBJECT,
1607	G_TYPE_INT, n_params: 1, G_TYPE_APPLICATION_COMMAND_LINE);
1608	g_signal_set_va_marshaller (signal_id: g_application_signals[SIGNAL_COMMAND_LINE],
1609	G_TYPE_FROM_CLASS (class),
1610	va_marshaller: _g_cclosure_marshal_INT__OBJECTv);
1611
1612	/**
1613	* GApplication::handle-local-options:
1614	* @application: the application
1615	* @options: the options dictionary
1616	*
1617	* The ::handle-local-options signal is emitted on the local instance
1618	* after the parsing of the commandline options has occurred.
1619	*
1620	* You can add options to be recognised during commandline option
1621	* parsing using g_application_add_main_option_entries() and
1622	* g_application_add_option_group().
1623	*
1624	* Signal handlers can inspect @options (along with values pointed to
1625	* from the @arg_data of an installed #GOptionEntrys) in order to
1626	* decide to perform certain actions, including direct local handling
1627	* (which may be useful for options like --version).
1628	*
1629	* In the event that the application is marked
1630	* %G_APPLICATION_HANDLES_COMMAND_LINE the "normal processing" will
1631	* send the @options dictionary to the primary instance where it can be
1632	* read with g_application_command_line_get_options_dict(). The signal
1633	* handler can modify the dictionary before returning, and the
1634	* modified dictionary will be sent.
1635	*
1636	* In the event that %G_APPLICATION_HANDLES_COMMAND_LINE is not set,
1637	* "normal processing" will treat the remaining uncollected command
1638	* line arguments as filenames or URIs. If there are no arguments,
1639	* the application is activated by g_application_activate(). One or
1640	* more arguments results in a call to g_application_open().
1641	*
1642	* If you want to handle the local commandline arguments for yourself
1643	* by converting them to calls to g_application_open() or
1644	* g_action_group_activate_action() then you must be sure to register
1645	* the application first. You should probably not call
1646	* g_application_activate() for yourself, however: just return -1 and
1647	* allow the default handler to do it for you. This will ensure that
1648	* the `--gapplication-service` switch works properly (i.e. no activation
1649	* in that case).
1650	*
1651	* Note that this signal is emitted from the default implementation of
1652	* local_command_line(). If you override that function and don't
1653	* chain up then this signal will never be emitted.
1654	*
1655	* You can override local_command_line() if you need more powerful
1656	* capabilities than what is provided here, but this should not
1657	* normally be required.
1658	*
1659	* Returns: an exit code. If you have handled your options and want
1660	* to exit the process, return a non-negative option, 0 for success,
1661	* and a positive value for failure. To continue, return -1 to let
1662	* the default option processing continue.
1663	*
1664	* Since: 2.40
1665	**/
1666	g_application_signals[SIGNAL_HANDLE_LOCAL_OPTIONS] =
1667	g_signal_new (I_("handle-local-options"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_LAST,
1668	G_STRUCT_OFFSET (GApplicationClass, handle_local_options),
1669	accumulator: g_application_handle_local_options_accumulator, NULL,
1670	c_marshaller: _g_cclosure_marshal_INT__BOXED,
1671	G_TYPE_INT, n_params: 1, G_TYPE_VARIANT_DICT);
1672	g_signal_set_va_marshaller (signal_id: g_application_signals[SIGNAL_HANDLE_LOCAL_OPTIONS],
1673	G_TYPE_FROM_CLASS (class),
1674	va_marshaller: _g_cclosure_marshal_INT__BOXEDv);
1675
1676	/**
1677	* GApplication::name-lost:
1678	* @application: the application
1679	*
1680	* The ::name-lost signal is emitted only on the registered primary instance
1681	* when a new instance has taken over. This can only happen if the application
1682	* is using the %G_APPLICATION_ALLOW_REPLACEMENT flag.
1683	*
1684	* The default handler for this signal calls g_application_quit().
1685	*
1686	* Returns: %TRUE if the signal has been handled
1687	*
1688	* Since: 2.60
1689	*/
1690	g_application_signals[SIGNAL_NAME_LOST] =
1691	g_signal_new (I_("name-lost"), G_TYPE_APPLICATION, signal_flags: G_SIGNAL_RUN_LAST,
1692	G_STRUCT_OFFSET (GApplicationClass, name_lost),
1693	accumulator: g_signal_accumulator_true_handled, NULL,
1694	c_marshaller: _g_cclosure_marshal_BOOLEAN__VOID,
1695	G_TYPE_BOOLEAN, n_params: 0);
1696	g_signal_set_va_marshaller (signal_id: g_application_signals[SIGNAL_NAME_LOST],
1697	G_TYPE_FROM_CLASS (class),
1698	va_marshaller: _g_cclosure_marshal_BOOLEAN__VOIDv);
1699	}
1700
1701	/* Application ID validity {{{1 */
1702
1703	/**
1704	* g_application_id_is_valid:
1705	* @application_id: a potential application identifier
1706	*
1707	* Checks if @application_id is a valid application identifier.
1708	*
1709	* A valid ID is required for calls to g_application_new() and
1710	* g_application_set_application_id().
1711	*
1712	* Application identifiers follow the same format as
1713	* [D-Bus well-known bus names](https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus).
1714	* For convenience, the restrictions on application identifiers are
1715	* reproduced here:
1716	*
1717	* - Application identifiers are composed of 1 or more elements separated by a
1718	* period (`.`) character. All elements must contain at least one character.
1719	*
1720	* - Each element must only contain the ASCII characters `[A-Z][a-z][0-9]_-`,
1721	* with `-` discouraged in new application identifiers. Each element must not
1722	* begin with a digit.
1723	*
1724	* - Application identifiers must contain at least one `.` (period) character
1725	* (and thus at least two elements).
1726	*
1727	* - Application identifiers must not begin with a `.` (period) character.
1728	*
1729	* - Application identifiers must not exceed 255 characters.
1730	*
1731	* Note that the hyphen (`-`) character is allowed in application identifiers,
1732	* but is problematic or not allowed in various specifications and APIs that
1733	* refer to D-Bus, such as
1734	* [Flatpak application IDs](http://docs.flatpak.org/en/latest/introduction.html#identifiers),
1735	* the
1736	* [`DBusActivatable` interface in the Desktop Entry Specification](https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#dbus),
1737	* and the convention that an application's "main" interface and object path
1738	* resemble its application identifier and bus name. To avoid situations that
1739	* require special-case handling, it is recommended that new application
1740	* identifiers consistently replace hyphens with underscores.
1741	*
1742	* Like D-Bus interface names, application identifiers should start with the
1743	* reversed DNS domain name of the author of the interface (in lower-case), and
1744	* it is conventional for the rest of the application identifier to consist of
1745	* words run together, with initial capital letters.
1746	*
1747	* As with D-Bus interface names, if the author's DNS domain name contains
1748	* hyphen/minus characters they should be replaced by underscores, and if it
1749	* contains leading digits they should be escaped by prepending an underscore.
1750	* For example, if the owner of 7-zip.org used an application identifier for an
1751	* archiving application, it might be named `org._7_zip.Archiver`.
1752	*
1753	* Returns: %TRUE if @application_id is valid
1754	*/
1755	gboolean
1756	g_application_id_is_valid (const gchar *application_id)
1757	{
1758	return g_dbus_is_name (string: application_id) &&
1759	!g_dbus_is_unique_name (string: application_id);
1760	}
1761
1762	/* Public Constructor {{{1 */
1763	/**
1764	* g_application_new:
1765	* @application_id: (nullable): the application id
1766	* @flags: the application flags
1767	*
1768	* Creates a new #GApplication instance.
1769	*
1770	* If non-%NULL, the application id must be valid. See
1771	* g_application_id_is_valid().
1772	*
1773	* If no application ID is given then some features of #GApplication
1774	* (most notably application uniqueness) will be disabled.
1775	*
1776	* Returns: a new #GApplication instance
1777	**/
1778	GApplication *
1779	g_application_new (const gchar *application_id,
1780	GApplicationFlags flags)
1781	{
1782	g_return_val_if_fail (application_id == NULL || g_application_id_is_valid (application_id), NULL);
1783
1784	return g_object_new (G_TYPE_APPLICATION,
1785	first_property_name: "application-id", application_id,
1786	"flags", flags,
1787	NULL);
1788	}
1789
1790	/* Simple get/set: application id, flags, inactivity timeout {{{1 */
1791	/**
1792	* g_application_get_application_id:
1793	* @application: a #GApplication
1794	*
1795	* Gets the unique identifier for @application.
1796	*
1797	* Returns: (nullable): the identifier for @application, owned by @application
1798	*
1799	* Since: 2.28
1800	**/
1801	const gchar *
1802	g_application_get_application_id (GApplication *application)
1803	{
1804	g_return_val_if_fail (G_IS_APPLICATION (application), NULL);
1805
1806	return application->priv->id;
1807	}
1808
1809	/**
1810	* g_application_set_application_id:
1811	* @application: a #GApplication
1812	* @application_id: (nullable): the identifier for @application
1813	*
1814	* Sets the unique identifier for @application.
1815	*
1816	* The application id can only be modified if @application has not yet
1817	* been registered.
1818	*
1819	* If non-%NULL, the application id must be valid. See
1820	* g_application_id_is_valid().
1821	*
1822	* Since: 2.28
1823	**/
1824	void
1825	g_application_set_application_id (GApplication *application,
1826	const gchar *application_id)
1827	{
1828	g_return_if_fail (G_IS_APPLICATION (application));
1829
1830	if (g_strcmp0 (str1: application->priv->id, str2: application_id) != 0)
1831	{
1832	g_return_if_fail (application_id == NULL || g_application_id_is_valid (application_id));
1833	g_return_if_fail (!application->priv->is_registered);
1834
1835	g_free (mem: application->priv->id);
1836	application->priv->id = g_strdup (str: application_id);
1837
1838	g_object_notify (G_OBJECT (application), property_name: "application-id");
1839	}
1840	}
1841
1842	/**
1843	* g_application_get_flags:
1844	* @application: a #GApplication
1845	*
1846	* Gets the flags for @application.
1847	*
1848	* See #GApplicationFlags.
1849	*
1850	* Returns: the flags for @application
1851	*
1852	* Since: 2.28
1853	**/
1854	GApplicationFlags
1855	g_application_get_flags (GApplication *application)
1856	{
1857	g_return_val_if_fail (G_IS_APPLICATION (application), 0);
1858
1859	return application->priv->flags;
1860	}
1861
1862	/**
1863	* g_application_set_flags:
1864	* @application: a #GApplication
1865	* @flags: the flags for @application
1866	*
1867	* Sets the flags for @application.
1868	*
1869	* The flags can only be modified if @application has not yet been
1870	* registered.
1871	*
1872	* See #GApplicationFlags.
1873	*
1874	* Since: 2.28
1875	**/
1876	void
1877	g_application_set_flags (GApplication *application,
1878	GApplicationFlags flags)
1879	{
1880	g_return_if_fail (G_IS_APPLICATION (application));
1881
1882	if (application->priv->flags != flags)
1883	{
1884	g_return_if_fail (!application->priv->is_registered);
1885
1886	application->priv->flags = flags;
1887
1888	g_object_notify (G_OBJECT (application), property_name: "flags");
1889	}
1890	}
1891
1892	/**
1893	* g_application_get_resource_base_path:
1894	* @application: a #GApplication
1895	*
1896	* Gets the resource base path of @application.
1897	*
1898	* See g_application_set_resource_base_path() for more information.
1899	*
1900	* Returns: (nullable): the base resource path, if one is set
1901	*
1902	* Since: 2.42
1903	*/
1904	const gchar *
1905	g_application_get_resource_base_path (GApplication *application)
1906	{
1907	g_return_val_if_fail (G_IS_APPLICATION (application), NULL);
1908
1909	return application->priv->resource_path;
1910	}
1911
1912	/**
1913	* g_application_set_resource_base_path:
1914	* @application: a #GApplication
1915	* @resource_path: (nullable): the resource path to use
1916	*
1917	* Sets (or unsets) the base resource path of @application.
1918	*
1919	* The path is used to automatically load various [application
1920	* resources][gresource] such as menu layouts and action descriptions.
1921	* The various types of resources will be found at fixed names relative
1922	* to the given base path.
1923	*
1924	* By default, the resource base path is determined from the application
1925	* ID by prefixing '/' and replacing each '.' with '/'. This is done at
1926	* the time that the #GApplication object is constructed. Changes to
1927	* the application ID after that point will not have an impact on the
1928	* resource base path.
1929	*
1930	* As an example, if the application has an ID of "org.example.app" then
1931	* the default resource base path will be "/org/example/app". If this
1932	* is a #GtkApplication (and you have not manually changed the path)
1933	* then Gtk will then search for the menus of the application at
1934	* "/org/example/app/gtk/menus.ui".
1935	*
1936	* See #GResource for more information about adding resources to your
1937	* application.
1938	*
1939	* You can disable automatic resource loading functionality by setting
1940	* the path to %NULL.
1941	*
1942	* Changing the resource base path once the application is running is
1943	* not recommended. The point at which the resource path is consulted
1944	* for forming paths for various purposes is unspecified. When writing
1945	* a sub-class of #GApplication you should either set the
1946	* #GApplication:resource-base-path property at construction time, or call
1947	* this function during the instance initialization. Alternatively, you
1948	* can call this function in the #GApplicationClass.startup virtual function,
1949	* before chaining up to the parent implementation.
1950	*
1951	* Since: 2.42
1952	*/
1953	void
1954	g_application_set_resource_base_path (GApplication *application,
1955	const gchar *resource_path)
1956	{
1957	g_return_if_fail (G_IS_APPLICATION (application));
1958	g_return_if_fail (resource_path == NULL || g_str_has_prefix (resource_path, "/"));
1959
1960	if (g_strcmp0 (str1: application->priv->resource_path, str2: resource_path) != 0)
1961	{
1962	g_free (mem: application->priv->resource_path);
1963
1964	application->priv->resource_path = g_strdup (str: resource_path);
1965
1966	g_object_notify (G_OBJECT (application), property_name: "resource-base-path");
1967	}
1968	}
1969
1970	/**
1971	* g_application_get_inactivity_timeout:
1972	* @application: a #GApplication
1973	*
1974	* Gets the current inactivity timeout for the application.
1975	*
1976	* This is the amount of time (in milliseconds) after the last call to
1977	* g_application_release() before the application stops running.
1978	*
1979	* Returns: the timeout, in milliseconds
1980	*
1981	* Since: 2.28
1982	**/
1983	guint
1984	g_application_get_inactivity_timeout (GApplication *application)
1985	{
1986	g_return_val_if_fail (G_IS_APPLICATION (application), 0);
1987
1988	return application->priv->inactivity_timeout;
1989	}
1990
1991	/**
1992	* g_application_set_inactivity_timeout:
1993	* @application: a #GApplication
1994	* @inactivity_timeout: the timeout, in milliseconds
1995	*
1996	* Sets the current inactivity timeout for the application.
1997	*
1998	* This is the amount of time (in milliseconds) after the last call to
1999	* g_application_release() before the application stops running.
2000	*
2001	* This call has no side effects of its own. The value set here is only
2002	* used for next time g_application_release() drops the use count to
2003	* zero. Any timeouts currently in progress are not impacted.
2004	*
2005	* Since: 2.28
2006	**/
2007	void
2008	g_application_set_inactivity_timeout (GApplication *application,
2009	guint inactivity_timeout)
2010	{
2011	g_return_if_fail (G_IS_APPLICATION (application));
2012
2013	if (application->priv->inactivity_timeout != inactivity_timeout)
2014	{
2015	application->priv->inactivity_timeout = inactivity_timeout;
2016
2017	g_object_notify (G_OBJECT (application), property_name: "inactivity-timeout");
2018	}
2019	}
2020	/* Read-only property getters (is registered, is remote, dbus stuff) {{{1 */
2021	/**
2022	* g_application_get_is_registered:
2023	* @application: a #GApplication
2024	*
2025	* Checks if @application is registered.
2026	*
2027	* An application is registered if g_application_register() has been
2028	* successfully called.
2029	*
2030	* Returns: %TRUE if @application is registered
2031	*
2032	* Since: 2.28
2033	**/
2034	gboolean
2035	g_application_get_is_registered (GApplication *application)
2036	{
2037	g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
2038
2039	return application->priv->is_registered;
2040	}
2041
2042	/**
2043	* g_application_get_is_remote:
2044	* @application: a #GApplication
2045	*
2046	* Checks if @application is remote.
2047	*
2048	* If @application is remote then it means that another instance of
2049	* application already exists (the 'primary' instance). Calls to
2050	* perform actions on @application will result in the actions being
2051	* performed by the primary instance.
2052	*
2053	* The value of this property cannot be accessed before
2054	* g_application_register() has been called. See
2055	* g_application_get_is_registered().
2056	*
2057	* Returns: %TRUE if @application is remote
2058	*
2059	* Since: 2.28
2060	**/
2061	gboolean
2062	g_application_get_is_remote (GApplication *application)
2063	{
2064	g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
2065	g_return_val_if_fail (application->priv->is_registered, FALSE);
2066
2067	return application->priv->is_remote;
2068	}
2069
2070	/**
2071	* g_application_get_dbus_connection:
2072	* @application: a #GApplication
2073	*
2074	* Gets the #GDBusConnection being used by the application, or %NULL.
2075	*
2076	* If #GApplication is using its D-Bus backend then this function will
2077	* return the #GDBusConnection being used for uniqueness and
2078	* communication with the desktop environment and other instances of the
2079	* application.
2080	*
2081	* If #GApplication is not using D-Bus then this function will return
2082	* %NULL. This includes the situation where the D-Bus backend would
2083	* normally be in use but we were unable to connect to the bus.
2084	*
2085	* This function must not be called before the application has been
2086	* registered. See g_application_get_is_registered().
2087	*
2088	* Returns: (nullable) (transfer none): a #GDBusConnection, or %NULL
2089	*
2090	* Since: 2.34
2091	**/
2092	GDBusConnection *
2093	g_application_get_dbus_connection (GApplication *application)
2094	{
2095	g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
2096	g_return_val_if_fail (application->priv->is_registered, FALSE);
2097
2098	return g_application_impl_get_dbus_connection (impl: application->priv->impl);
2099	}
2100
2101	/**
2102	* g_application_get_dbus_object_path:
2103	* @application: a #GApplication
2104	*
2105	* Gets the D-Bus object path being used by the application, or %NULL.
2106	*
2107	* If #GApplication is using its D-Bus backend then this function will
2108	* return the D-Bus object path that #GApplication is using. If the
2109	* application is the primary instance then there is an object published
2110	* at this path. If the application is not the primary instance then
2111	* the result of this function is undefined.
2112	*
2113	* If #GApplication is not using D-Bus then this function will return
2114	* %NULL. This includes the situation where the D-Bus backend would
2115	* normally be in use but we were unable to connect to the bus.
2116	*
2117	* This function must not be called before the application has been
2118	* registered. See g_application_get_is_registered().
2119	*
2120	* Returns: (nullable): the object path, or %NULL
2121	*
2122	* Since: 2.34
2123	**/
2124	const gchar *
2125	g_application_get_dbus_object_path (GApplication *application)
2126	{
2127	g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
2128	g_return_val_if_fail (application->priv->is_registered, FALSE);
2129
2130	return g_application_impl_get_dbus_object_path (impl: application->priv->impl);
2131	}
2132
2133
2134	/* Register {{{1 */
2135	/**
2136	* g_application_register:
2137	* @application: a #GApplication
2138	* @cancellable: (nullable): a #GCancellable, or %NULL
2139	* @error: a pointer to a NULL #GError, or %NULL
2140	*
2141	* Attempts registration of the application.
2142	*
2143	* This is the point at which the application discovers if it is the
2144	* primary instance or merely acting as a remote for an already-existing
2145	* primary instance. This is implemented by attempting to acquire the
2146	* application identifier as a unique bus name on the session bus using
2147	* GDBus.
2148	*
2149	* If there is no application ID or if %G_APPLICATION_NON_UNIQUE was
2150	* given, then this process will always become the primary instance.
2151	*
2152	* Due to the internal architecture of GDBus, method calls can be
2153	* dispatched at any time (even if a main loop is not running). For
2154	* this reason, you must ensure that any object paths that you wish to
2155	* register are registered before calling this function.
2156	*
2157	* If the application has already been registered then %TRUE is
2158	* returned with no work performed.
2159	*
2160	* The #GApplication::startup signal is emitted if registration succeeds
2161	* and @application is the primary instance (including the non-unique
2162	* case).
2163	*
2164	* In the event of an error (such as @cancellable being cancelled, or a
2165	* failure to connect to the session bus), %FALSE is returned and @error
2166	* is set appropriately.
2167	*
2168	* Note: the return value of this function is not an indicator that this
2169	* instance is or is not the primary instance of the application. See
2170	* g_application_get_is_remote() for that.
2171	*
2172	* Returns: %TRUE if registration succeeded
2173	*
2174	* Since: 2.28
2175	**/
2176	gboolean
2177	g_application_register (GApplication *application,
2178	GCancellable *cancellable,
2179	GError **error)
2180	{
2181	g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
2182
2183	if (!application->priv->is_registered)
2184	{
2185	if (application->priv->id == NULL)
2186	application->priv->flags |= G_APPLICATION_NON_UNIQUE;
2187
2188	application->priv->impl =
2189	g_application_impl_register (application, appid: application->priv->id,
2190	flags: application->priv->flags,
2191	exported_actions: application->priv->actions,
2192	remote_actions: &application->priv->remote_actions,
2193	cancellable, error);
2194
2195	if (application->priv->impl == NULL)
2196	return FALSE;
2197
2198	application->priv->is_remote = application->priv->remote_actions != NULL;
2199	application->priv->is_registered = TRUE;
2200
2201	g_object_notify (G_OBJECT (application), property_name: "is-registered");
2202
2203	if (!application->priv->is_remote)
2204	{
2205	g_signal_emit (instance: application, signal_id: g_application_signals[SIGNAL_STARTUP], detail: 0);
2206
2207	if (!application->priv->did_startup)
2208	g_critical ("GApplication subclass '%s' failed to chain up on"
2209	" ::startup (from start of override function)",
2210	G_OBJECT_TYPE_NAME (application));
2211	}
2212	}
2213
2214	return TRUE;
2215	}
2216
2217	/* Hold/release {{{1 */
2218	/**
2219	* g_application_hold:
2220	* @application: a #GApplication
2221	*
2222	* Increases the use count of @application.
2223	*
2224	* Use this function to indicate that the application has a reason to
2225	* continue to run. For example, g_application_hold() is called by GTK+
2226	* when a toplevel window is on the screen.
2227	*
2228	* To cancel the hold, call g_application_release().
2229	**/
2230	void
2231	g_application_hold (GApplication *application)
2232	{
2233	g_return_if_fail (G_IS_APPLICATION (application));
2234
2235	if (application->priv->inactivity_timeout_id)
2236	{
2237	g_source_remove (tag: application->priv->inactivity_timeout_id);
2238	application->priv->inactivity_timeout_id = 0;
2239	}
2240
2241	application->priv->use_count++;
2242	}
2243
2244	static gboolean
2245	inactivity_timeout_expired (gpointer data)
2246	{
2247	GApplication *application = G_APPLICATION (data);
2248
2249	application->priv->inactivity_timeout_id = 0;
2250
2251	return G_SOURCE_REMOVE;
2252	}
2253
2254
2255	/**
2256	* g_application_release:
2257	* @application: a #GApplication
2258	*
2259	* Decrease the use count of @application.
2260	*
2261	* When the use count reaches zero, the application will stop running.
2262	*
2263	* Never call this function except to cancel the effect of a previous
2264	* call to g_application_hold().
2265	**/
2266	void
2267	g_application_release (GApplication *application)
2268	{
2269	g_return_if_fail (G_IS_APPLICATION (application));
2270	g_return_if_fail (application->priv->use_count > 0);
2271
2272	application->priv->use_count--;
2273
2274	if (application->priv->use_count == 0 && application->priv->inactivity_timeout)
2275	application->priv->inactivity_timeout_id = g_timeout_add (interval: application->priv->inactivity_timeout,
2276	function: inactivity_timeout_expired, data: application);
2277	}
2278
2279	/* Activate, Open {{{1 */
2280	/**
2281	* g_application_activate:
2282	* @application: a #GApplication
2283	*
2284	* Activates the application.
2285	*
2286	* In essence, this results in the #GApplication::activate signal being
2287	* emitted in the primary instance.
2288	*
2289	* The application must be registered before calling this function.
2290	*
2291	* Since: 2.28
2292	**/
2293	void
2294	g_application_activate (GApplication *application)
2295	{
2296	g_return_if_fail (G_IS_APPLICATION (application));
2297	g_return_if_fail (application->priv->is_registered);
2298
2299	if (application->priv->is_remote)
2300	g_application_impl_activate (impl: application->priv->impl,
2301	platform_data: get_platform_data (application, NULL));
2302
2303	else
2304	g_signal_emit (instance: application, signal_id: g_application_signals[SIGNAL_ACTIVATE], detail: 0);
2305	}
2306
2307	/**
2308	* g_application_open:
2309	* @application: a #GApplication
2310	* @files: (array length=n_files): an array of #GFiles to open
2311	* @n_files: the length of the @files array
2312	* @hint: a hint (or ""), but never %NULL
2313	*
2314	* Opens the given files.
2315	*
2316	* In essence, this results in the #GApplication::open signal being emitted
2317	* in the primary instance.
2318	*
2319	* @n_files must be greater than zero.
2320	*
2321	* @hint is simply passed through to the ::open signal. It is
2322	* intended to be used by applications that have multiple modes for
2323	* opening files (eg: "view" vs "edit", etc). Unless you have a need
2324	* for this functionality, you should use "".
2325	*
2326	* The application must be registered before calling this function
2327	* and it must have the %G_APPLICATION_HANDLES_OPEN flag set.
2328	*
2329	* Since: 2.28
2330	**/
2331	void
2332	g_application_open (GApplication *application,
2333	GFile **files,
2334	gint n_files,
2335	const gchar *hint)
2336	{
2337	g_return_if_fail (G_IS_APPLICATION (application));
2338	g_return_if_fail (application->priv->flags &
2339	G_APPLICATION_HANDLES_OPEN);
2340	g_return_if_fail (application->priv->is_registered);
2341
2342	if (application->priv->is_remote)
2343	g_application_impl_open (impl: application->priv->impl,
2344	files, n_files, hint,
2345	platform_data: get_platform_data (application, NULL));
2346
2347	else
2348	g_signal_emit (instance: application, signal_id: g_application_signals[SIGNAL_OPEN],
2349	detail: 0, files, n_files, hint);
2350	}
2351
2352	/* Run {{{1 */
2353	/**
2354	* g_application_run:
2355	* @application: a #GApplication
2356	* @argc: the argc from main() (or 0 if @argv is %NULL)
2357	* @argv: (array length=argc) (element-type filename) (nullable):
2358	* the argv from main(), or %NULL
2359	*
2360	* Runs the application.
2361	*
2362	* This function is intended to be run from main() and its return value
2363	* is intended to be returned by main(). Although you are expected to pass
2364	* the @argc, @argv parameters from main() to this function, it is possible
2365	* to pass %NULL if @argv is not available or commandline handling is not
2366	* required. Note that on Windows, @argc and @argv are ignored, and
2367	* g_win32_get_command_line() is called internally (for proper support
2368	* of Unicode commandline arguments).
2369	*
2370	* #GApplication will attempt to parse the commandline arguments. You
2371	* can add commandline flags to the list of recognised options by way of
2372	* g_application_add_main_option_entries(). After this, the
2373	* #GApplication::handle-local-options signal is emitted, from which the
2374	* application can inspect the values of its #GOptionEntrys.
2375	*
2376	* #GApplication::handle-local-options is a good place to handle options
2377	* such as `--version`, where an immediate reply from the local process is
2378	* desired (instead of communicating with an already-running instance).
2379	* A #GApplication::handle-local-options handler can stop further processing
2380	* by returning a non-negative value, which then becomes the exit status of
2381	* the process.
2382	*
2383	* What happens next depends on the flags: if
2384	* %G_APPLICATION_HANDLES_COMMAND_LINE was specified then the remaining
2385	* commandline arguments are sent to the primary instance, where a
2386	* #GApplication::command-line signal is emitted. Otherwise, the
2387	* remaining commandline arguments are assumed to be a list of files.
2388	* If there are no files listed, the application is activated via the
2389	* #GApplication::activate signal. If there are one or more files, and
2390	* %G_APPLICATION_HANDLES_OPEN was specified then the files are opened
2391	* via the #GApplication::open signal.
2392	*
2393	* If you are interested in doing more complicated local handling of the
2394	* commandline then you should implement your own #GApplication subclass
2395	* and override local_command_line(). In this case, you most likely want
2396	* to return %TRUE from your local_command_line() implementation to
2397	* suppress the default handling. See
2398	* [gapplication-example-cmdline2.c][gapplication-example-cmdline2]
2399	* for an example.
2400	*
2401	* If, after the above is done, the use count of the application is zero
2402	* then the exit status is returned immediately. If the use count is
2403	* non-zero then the default main context is iterated until the use count
2404	* falls to zero, at which point 0 is returned.
2405	*
2406	* If the %G_APPLICATION_IS_SERVICE flag is set, then the service will
2407	* run for as much as 10 seconds with a use count of zero while waiting
2408	* for the message that caused the activation to arrive. After that,
2409	* if the use count falls to zero the application will exit immediately,
2410	* except in the case that g_application_set_inactivity_timeout() is in
2411	* use.
2412	*
2413	* This function sets the prgname (g_set_prgname()), if not already set,
2414	* to the basename of argv[0].
2415	*
2416	* Much like g_main_loop_run(), this function will acquire the main context
2417	* for the duration that the application is running.
2418	*
2419	* Since 2.40, applications that are not explicitly flagged as services
2420	* or launchers (ie: neither %G_APPLICATION_IS_SERVICE or
2421	* %G_APPLICATION_IS_LAUNCHER are given as flags) will check (from the
2422	* default handler for local_command_line) if "--gapplication-service"
2423	* was given in the command line. If this flag is present then normal
2424	* commandline processing is interrupted and the
2425	* %G_APPLICATION_IS_SERVICE flag is set. This provides a "compromise"
2426	* solution whereby running an application directly from the commandline
2427	* will invoke it in the normal way (which can be useful for debugging)
2428	* while still allowing applications to be D-Bus activated in service
2429	* mode. The D-Bus service file should invoke the executable with
2430	* "--gapplication-service" as the sole commandline argument. This
2431	* approach is suitable for use by most graphical applications but
2432	* should not be used from applications like editors that need precise
2433	* control over when processes invoked via the commandline will exit and
2434	* what their exit status will be.
2435	*
2436	* Returns: the exit status
2437	*
2438	* Since: 2.28
2439	**/
2440	int
2441	g_application_run (GApplication *application,
2442	int argc,
2443	char **argv)
2444	{
2445	gchar **arguments;
2446	int status;
2447	GMainContext *context;
2448	gboolean acquired_context;
2449
2450	g_return_val_if_fail (G_IS_APPLICATION (application), 1);
2451	g_return_val_if_fail (argc == 0 || argv != NULL, 1);
2452	g_return_val_if_fail (!application->priv->must_quit_now, 1);
2453
2454	#ifdef G_OS_WIN32
2455	{
2456	gint new_argc = 0;
2457
2458	arguments = g_win32_get_command_line ();
2459
2460	/*
2461	* CommandLineToArgvW(), which is called by g_win32_get_command_line(),
2462	* pulls in the whole command line that is used to call the program. This is
2463	* fine in cases where the program is a .exe program, but in the cases where the
2464	* program is a called via a script, such as PyGObject's gtk-demo.py, which is normally
2465	* called using 'python gtk-demo.py' on Windows, the program name (argv[0])
2466	* returned by g_win32_get_command_line() will not be the argv[0] that ->local_command_line()
2467	* would expect, causing the program to fail with "This application can not open files."
2468	*/
2469	new_argc = g_strv_length (arguments);
2470
2471	if (new_argc > argc)
2472	{
2473	gint i;
2474
2475	for (i = 0; i < new_argc - argc; i++)
2476	g_free (arguments[i]);
2477
2478	memmove (&arguments[0],
2479	&arguments[new_argc - argc],
2480	sizeof (arguments[0]) * (argc + 1));
2481	}
2482	}
2483	#elif defined(__APPLE__)
2484	{
2485	gint i, j;
2486
2487	/*
2488	* OSX adds an unexpected parameter on the format -psn_X_XXXXXX
2489	* when opening the application using Launch Services. In order
2490	* to avoid that GOption fails to parse this parameter we just
2491	* skip it if it was provided.
2492	* See: https://gitlab.gnome.org/GNOME/glib/issues/1784
2493	*/
2494	arguments = g_new (gchar *, argc + 1);
2495	for (i = 0, j = 0; i < argc; i++)
2496	{
2497	if (!g_str_has_prefix (argv[i], "-psn_"))
2498	{
2499	arguments[j] = g_strdup (argv[i]);
2500	j++;
2501	}
2502	}
2503	arguments[j] = NULL;
2504	}
2505	#else
2506	{
2507	gint i;
2508
2509	arguments = g_new (gchar *, argc + 1);
2510	for (i = 0; i < argc; i++)
2511	arguments[i] = g_strdup (str: argv[i]);
2512	arguments[i] = NULL;
2513	}
2514	#endif
2515
2516	if (g_get_prgname () == NULL && argc > 0)
2517	{
2518	gchar *prgname;
2519
2520	prgname = g_path_get_basename (file_name: argv[0]);
2521	g_set_prgname (prgname);
2522	g_free (mem: prgname);
2523	}
2524
2525	context = g_main_context_default ();
2526	acquired_context = g_main_context_acquire (context);
2527	g_return_val_if_fail (acquired_context, 0);
2528
2529	if (!G_APPLICATION_GET_CLASS (application)
2530	->local_command_line (application, &arguments, &status))
2531	{
2532	GError *error = NULL;
2533
2534	if (!g_application_register (application, NULL, error: &error))
2535	{
2536	g_printerr (format: "Failed to register: %s\n", error->message);
2537	g_error_free (error);
2538	return 1;
2539	}
2540
2541	g_application_call_command_line (application, arguments: (const gchar **) arguments, NULL, exit_status: &status);
2542	}
2543
2544	g_strfreev (str_array: arguments);
2545
2546	if (application->priv->flags & G_APPLICATION_IS_SERVICE &&
2547	application->priv->is_registered &&
2548	!application->priv->use_count &&
2549	!application->priv->inactivity_timeout_id)
2550	{
2551	application->priv->inactivity_timeout_id =
2552	g_timeout_add (interval: 10000, function: inactivity_timeout_expired, data: application);
2553	}
2554
2555	while (application->priv->use_count || application->priv->inactivity_timeout_id)
2556	{
2557	if (application->priv->must_quit_now)
2558	break;
2559
2560	g_main_context_iteration (context, TRUE);
2561	status = 0;
2562	}
2563
2564	if (application->priv->is_registered && !application->priv->is_remote)
2565	{
2566	g_signal_emit (instance: application, signal_id: g_application_signals[SIGNAL_SHUTDOWN], detail: 0);
2567
2568	if (!application->priv->did_shutdown)
2569	g_critical ("GApplication subclass '%s' failed to chain up on"
2570	" ::shutdown (from end of override function)",
2571	G_OBJECT_TYPE_NAME (application));
2572	}
2573
2574	if (application->priv->impl)
2575	{
2576	g_application_impl_flush (impl: application->priv->impl);
2577	g_application_impl_destroy (impl: application->priv->impl);
2578	application->priv->impl = NULL;
2579	}
2580
2581	g_settings_sync ();
2582
2583	if (!application->priv->must_quit_now)
2584	while (g_main_context_iteration (context, FALSE))
2585	;
2586
2587	g_main_context_release (context);
2588
2589	return status;
2590	}
2591
2592	static gchar **
2593	g_application_list_actions (GActionGroup *action_group)
2594	{
2595	GApplication *application = G_APPLICATION (action_group);
2596
2597	g_return_val_if_fail (application->priv->is_registered, NULL);
2598
2599	if (application->priv->remote_actions != NULL)
2600	return g_action_group_list_actions (G_ACTION_GROUP (application->priv->remote_actions));
2601
2602	else if (application->priv->actions != NULL)
2603	return g_action_group_list_actions (action_group: application->priv->actions);
2604
2605	else
2606	/* empty string array */
2607	return g_new0 (gchar *, 1);
2608	}
2609
2610	static gboolean
2611	g_application_query_action (GActionGroup *group,
2612	const gchar *action_name,
2613	gboolean *enabled,
2614	const GVariantType **parameter_type,
2615	const GVariantType **state_type,
2616	GVariant **state_hint,
2617	GVariant **state)
2618	{
2619	GApplication *application = G_APPLICATION (group);
2620
2621	g_return_val_if_fail (application->priv->is_registered, FALSE);
2622
2623	if (application->priv->remote_actions != NULL)
2624	return g_action_group_query_action (G_ACTION_GROUP (application->priv->remote_actions),
2625	action_name,
2626	enabled,
2627	parameter_type,
2628	state_type,
2629	state_hint,
2630	state);
2631
2632	if (application->priv->actions != NULL)
2633	return g_action_group_query_action (action_group: application->priv->actions,
2634	action_name,
2635	enabled,
2636	parameter_type,
2637	state_type,
2638	state_hint,
2639	state);
2640
2641	return FALSE;
2642	}
2643
2644	static void
2645	g_application_change_action_state (GActionGroup *action_group,
2646	const gchar *action_name,
2647	GVariant *value)
2648	{
2649	GApplication *application = G_APPLICATION (action_group);
2650
2651	g_return_if_fail (application->priv->is_remote ||
2652	application->priv->actions != NULL);
2653	g_return_if_fail (application->priv->is_registered);
2654
2655	if (application->priv->remote_actions)
2656	g_remote_action_group_change_action_state_full (remote: application->priv->remote_actions,
2657	action_name, value, platform_data: get_platform_data (application, NULL));
2658
2659	else
2660	g_action_group_change_action_state (action_group: application->priv->actions, action_name, value);
2661	}
2662
2663	static void
2664	g_application_activate_action (GActionGroup *action_group,
2665	const gchar *action_name,
2666	GVariant *parameter)
2667	{
2668	GApplication *application = G_APPLICATION (action_group);
2669
2670	g_return_if_fail (application->priv->is_remote ||
2671	application->priv->actions != NULL);
2672	g_return_if_fail (application->priv->is_registered);
2673
2674	if (application->priv->remote_actions)
2675	g_remote_action_group_activate_action_full (remote: application->priv->remote_actions,
2676	action_name, parameter, platform_data: get_platform_data (application, NULL));
2677
2678	else
2679	g_action_group_activate_action (action_group: application->priv->actions, action_name, parameter);
2680	}
2681
2682	static GAction *
2683	g_application_lookup_action (GActionMap *action_map,
2684	const gchar *action_name)
2685	{
2686	GApplication *application = G_APPLICATION (action_map);
2687
2688	g_return_val_if_fail (G_IS_ACTION_MAP (application->priv->actions), NULL);
2689
2690	return g_action_map_lookup_action (G_ACTION_MAP (application->priv->actions), action_name);
2691	}
2692
2693	static void
2694	g_application_add_action (GActionMap *action_map,
2695	GAction *action)
2696	{
2697	GApplication *application = G_APPLICATION (action_map);
2698
2699	g_return_if_fail (G_IS_ACTION_MAP (application->priv->actions));
2700
2701	g_action_map_add_action (G_ACTION_MAP (application->priv->actions), action);
2702	}
2703
2704	static void
2705	g_application_remove_action (GActionMap *action_map,
2706	const gchar *action_name)
2707	{
2708	GApplication *application = G_APPLICATION (action_map);
2709
2710	g_return_if_fail (G_IS_ACTION_MAP (application->priv->actions));
2711
2712	g_action_map_remove_action (G_ACTION_MAP (application->priv->actions), action_name);
2713	}
2714
2715	static void
2716	g_application_action_group_iface_init (GActionGroupInterface *iface)
2717	{
2718	iface->list_actions = g_application_list_actions;
2719	iface->query_action = g_application_query_action;
2720	iface->change_action_state = g_application_change_action_state;
2721	iface->activate_action = g_application_activate_action;
2722	}
2723
2724	static void
2725	g_application_action_map_iface_init (GActionMapInterface *iface)
2726	{
2727	iface->lookup_action = g_application_lookup_action;
2728	iface->add_action = g_application_add_action;
2729	iface->remove_action = g_application_remove_action;
2730	}
2731
2732	/* Default Application {{{1 */
2733
2734	static GApplication *default_app;
2735
2736	/**
2737	* g_application_get_default:
2738	*
2739	* Returns the default #GApplication instance for this process.
2740	*
2741	* Normally there is only one #GApplication per process and it becomes
2742	* the default when it is created. You can exercise more control over
2743	* this by using g_application_set_default().
2744	*
2745	* If there is no default application then %NULL is returned.
2746	*
2747	* Returns: (nullable) (transfer none): the default application for this process, or %NULL
2748	*
2749	* Since: 2.32
2750	**/
2751	GApplication *
2752	g_application_get_default (void)
2753	{
2754	return default_app;
2755	}
2756
2757	/**
2758	* g_application_set_default:
2759	* @application: (nullable): the application to set as default, or %NULL
2760	*
2761	* Sets or unsets the default application for the process, as returned
2762	* by g_application_get_default().
2763	*
2764	* This function does not take its own reference on @application. If
2765	* @application is destroyed then the default application will revert
2766	* back to %NULL.
2767	*
2768	* Since: 2.32
2769	**/
2770	void
2771	g_application_set_default (GApplication *application)
2772	{
2773	default_app = application;
2774	}
2775
2776	/**
2777	* g_application_quit:
2778	* @application: a #GApplication
2779	*
2780	* Immediately quits the application.
2781	*
2782	* Upon return to the mainloop, g_application_run() will return,
2783	* calling only the 'shutdown' function before doing so.
2784	*
2785	* The hold count is ignored.
2786	* Take care if your code has called g_application_hold() on the application and
2787	* is therefore still expecting it to exist.
2788	* (Note that you may have called g_application_hold() indirectly, for example
2789	* through gtk_application_add_window().)
2790	*
2791	* The result of calling g_application_run() again after it returns is
2792	* unspecified.
2793	*
2794	* Since: 2.32
2795	**/
2796	void
2797	g_application_quit (GApplication *application)
2798	{
2799	g_return_if_fail (G_IS_APPLICATION (application));
2800
2801	application->priv->must_quit_now = TRUE;
2802	}
2803
2804	/**
2805	* g_application_mark_busy:
2806	* @application: a #GApplication
2807	*
2808	* Increases the busy count of @application.
2809	*
2810	* Use this function to indicate that the application is busy, for instance
2811	* while a long running operation is pending.
2812	*
2813	* The busy state will be exposed to other processes, so a session shell will
2814	* use that information to indicate the state to the user (e.g. with a
2815	* spinner).
2816	*
2817	* To cancel the busy indication, use g_application_unmark_busy().
2818	*
2819	* Since: 2.38
2820	**/
2821	void
2822	g_application_mark_busy (GApplication *application)
2823	{
2824	gboolean was_busy;
2825
2826	g_return_if_fail (G_IS_APPLICATION (application));
2827
2828	was_busy = (application->priv->busy_count > 0);
2829	application->priv->busy_count++;
2830
2831	if (!was_busy)
2832	{
2833	g_application_impl_set_busy_state (impl: application->priv->impl, TRUE);
2834	g_object_notify (G_OBJECT (application), property_name: "is-busy");
2835	}
2836	}
2837
2838	/**
2839	* g_application_unmark_busy:
2840	* @application: a #GApplication
2841	*
2842	* Decreases the busy count of @application.
2843	*
2844	* When the busy count reaches zero, the new state will be propagated
2845	* to other processes.
2846	*
2847	* This function must only be called to cancel the effect of a previous
2848	* call to g_application_mark_busy().
2849	*
2850	* Since: 2.38
2851	**/
2852	void
2853	g_application_unmark_busy (GApplication *application)
2854	{
2855	g_return_if_fail (G_IS_APPLICATION (application));
2856	g_return_if_fail (application->priv->busy_count > 0);
2857
2858	application->priv->busy_count--;
2859
2860	if (application->priv->busy_count == 0)
2861	{
2862	g_application_impl_set_busy_state (impl: application->priv->impl, FALSE);
2863	g_object_notify (G_OBJECT (application), property_name: "is-busy");
2864	}
2865	}
2866
2867	/**
2868	* g_application_get_is_busy:
2869	* @application: a #GApplication
2870	*
2871	* Gets the application's current busy state, as set through
2872	* g_application_mark_busy() or g_application_bind_busy_property().
2873	*
2874	* Returns: %TRUE if @application is currently marked as busy
2875	*
2876	* Since: 2.44
2877	*/
2878	gboolean
2879	g_application_get_is_busy (GApplication *application)
2880	{
2881	g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
2882
2883	return application->priv->busy_count > 0;
2884	}
2885
2886	/* Notifications {{{1 */
2887
2888	/**
2889	* g_application_send_notification:
2890	* @application: a #GApplication
2891	* @id: (nullable): id of the notification, or %NULL
2892	* @notification: the #GNotification to send
2893	*
2894	* Sends a notification on behalf of @application to the desktop shell.
2895	* There is no guarantee that the notification is displayed immediately,
2896	* or even at all.
2897	*
2898	* Notifications may persist after the application exits. It will be
2899	* D-Bus-activated when the notification or one of its actions is
2900	* activated.
2901	*
2902	* Modifying @notification after this call has no effect. However, the
2903	* object can be reused for a later call to this function.
2904	*
2905	* @id may be any string that uniquely identifies the event for the
2906	* application. It does not need to be in any special format. For
2907	* example, "new-message" might be appropriate for a notification about
2908	* new messages.
2909	*
2910	* If a previous notification was sent with the same @id, it will be
2911	* replaced with @notification and shown again as if it was a new
2912	* notification. This works even for notifications sent from a previous
2913	* execution of the application, as long as @id is the same string.
2914	*
2915	* @id may be %NULL, but it is impossible to replace or withdraw
2916	* notifications without an id.
2917	*
2918	* If @notification is no longer relevant, it can be withdrawn with
2919	* g_application_withdraw_notification().
2920	*
2921	* Since: 2.40
2922	*/
2923	void
2924	g_application_send_notification (GApplication *application,
2925	const gchar *id,
2926	GNotification *notification)
2927	{
2928	gchar *generated_id = NULL;
2929
2930	g_return_if_fail (G_IS_APPLICATION (application));
2931	g_return_if_fail (G_IS_NOTIFICATION (notification));
2932	g_return_if_fail (g_application_get_is_registered (application));
2933	g_return_if_fail (!g_application_get_is_remote (application));
2934
2935	if (application->priv->notifications == NULL)
2936	application->priv->notifications = g_notification_backend_new_default (application);
2937
2938	if (id == NULL)
2939	{
2940	generated_id = g_dbus_generate_guid ();
2941	id = generated_id;
2942	}
2943
2944	g_notification_backend_send_notification (backend: application->priv->notifications, id, notification);
2945
2946	g_free (mem: generated_id);
2947	}
2948
2949	/**
2950	* g_application_withdraw_notification:
2951	* @application: a #GApplication
2952	* @id: id of a previously sent notification
2953	*
2954	* Withdraws a notification that was sent with
2955	* g_application_send_notification().
2956	*
2957	* This call does nothing if a notification with @id doesn't exist or
2958	* the notification was never sent.
2959	*
2960	* This function works even for notifications sent in previous
2961	* executions of this application, as long @id is the same as it was for
2962	* the sent notification.
2963	*
2964	* Note that notifications are dismissed when the user clicks on one
2965	* of the buttons in a notification or triggers its default action, so
2966	* there is no need to explicitly withdraw the notification in that case.
2967	*
2968	* Since: 2.40
2969	*/
2970	void
2971	g_application_withdraw_notification (GApplication *application,
2972	const gchar *id)
2973	{
2974	g_return_if_fail (G_IS_APPLICATION (application));
2975	g_return_if_fail (id != NULL);
2976
2977	if (application->priv->notifications == NULL)
2978	application->priv->notifications = g_notification_backend_new_default (application);
2979
2980	g_notification_backend_withdraw_notification (backend: application->priv->notifications, id);
2981	}
2982
2983	/* Busy binding {{{1 */
2984
2985	typedef struct
2986	{
2987	GApplication *app;
2988	gboolean is_busy;
2989	} GApplicationBusyBinding;
2990
2991	static void
2992	g_application_busy_binding_destroy (gpointer data,
2993	GClosure *closure)
2994	{
2995	GApplicationBusyBinding *binding = data;
2996
2997	if (binding->is_busy)
2998	g_application_unmark_busy (application: binding->app);
2999
3000	g_object_unref (object: binding->app);
3001	g_slice_free (GApplicationBusyBinding, binding);
3002	}
3003
3004	static void
3005	g_application_notify_busy_binding (GObject *object,
3006	GParamSpec *pspec,
3007	gpointer user_data)
3008	{
3009	GApplicationBusyBinding *binding = user_data;
3010	gboolean is_busy;
3011
3012	g_object_get (object, first_property_name: pspec->name, &is_busy, NULL);
3013
3014	if (is_busy && !binding->is_busy)
3015	g_application_mark_busy (application: binding->app);
3016	else if (!is_busy && binding->is_busy)
3017	g_application_unmark_busy (application: binding->app);
3018
3019	binding->is_busy = is_busy;
3020	}
3021
3022	/**
3023	* g_application_bind_busy_property:
3024	* @application: a #GApplication
3025	* @object: (type GObject.Object): a #GObject
3026	* @property: the name of a boolean property of @object
3027	*
3028	* Marks @application as busy (see g_application_mark_busy()) while
3029	* @property on @object is %TRUE.
3030	*
3031	* The binding holds a reference to @application while it is active, but
3032	* not to @object. Instead, the binding is destroyed when @object is
3033	* finalized.
3034	*
3035	* Since: 2.44
3036	*/
3037	void
3038	g_application_bind_busy_property (GApplication *application,
3039	gpointer object,
3040	const gchar *property)
3041	{
3042	guint notify_id;
3043	GQuark property_quark;
3044	GParamSpec *pspec;
3045	GApplicationBusyBinding *binding;
3046	GClosure *closure;
3047
3048	g_return_if_fail (G_IS_APPLICATION (application));
3049	g_return_if_fail (G_IS_OBJECT (object));
3050	g_return_if_fail (property != NULL);
3051
3052	notify_id = g_signal_lookup (name: "notify", G_TYPE_OBJECT);
3053	property_quark = g_quark_from_string (string: property);
3054	pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (object), property_name: property);
3055
3056	g_return_if_fail (pspec != NULL && pspec->value_type == G_TYPE_BOOLEAN);
3057
3058	if (g_signal_handler_find (instance: object, mask: G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DETAIL | G_SIGNAL_MATCH_FUNC,
3059	signal_id: notify_id, detail: property_quark, NULL, func: g_application_notify_busy_binding, NULL) > 0)
3060	{
3061	g_critical ("%s: '%s' is already bound to the busy state of the application", G_STRFUNC, property);
3062	return;
3063	}
3064
3065	binding = g_slice_new (GApplicationBusyBinding);
3066	binding->app = g_object_ref (application);
3067	binding->is_busy = FALSE;
3068
3069	closure = g_cclosure_new (G_CALLBACK (g_application_notify_busy_binding), user_data: binding,
3070	destroy_data: g_application_busy_binding_destroy);
3071	g_signal_connect_closure_by_id (instance: object, signal_id: notify_id, detail: property_quark, closure, FALSE);
3072
3073	/* fetch the initial value */
3074	g_application_notify_busy_binding (object, pspec, user_data: binding);
3075	}
3076
3077	/**
3078	* g_application_unbind_busy_property:
3079	* @application: a #GApplication
3080	* @object: (type GObject.Object): a #GObject
3081	* @property: the name of a boolean property of @object
3082	*
3083	* Destroys a binding between @property and the busy state of
3084	* @application that was previously created with
3085	* g_application_bind_busy_property().
3086	*
3087	* Since: 2.44
3088	*/
3089	void
3090	g_application_unbind_busy_property (GApplication *application,
3091	gpointer object,
3092	const gchar *property)
3093	{
3094	guint notify_id;
3095	GQuark property_quark;
3096	gulong handler_id;
3097
3098	g_return_if_fail (G_IS_APPLICATION (application));
3099	g_return_if_fail (G_IS_OBJECT (object));
3100	g_return_if_fail (property != NULL);
3101
3102	notify_id = g_signal_lookup (name: "notify", G_TYPE_OBJECT);
3103	property_quark = g_quark_from_string (string: property);
3104
3105	handler_id = g_signal_handler_find (instance: object, mask: G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DETAIL | G_SIGNAL_MATCH_FUNC,
3106	signal_id: notify_id, detail: property_quark, NULL, func: g_application_notify_busy_binding, NULL);
3107	if (handler_id == 0)
3108	{
3109	g_critical ("%s: '%s' is not bound to the busy state of the application", G_STRFUNC, property);
3110	return;
3111	}
3112
3113	g_signal_handler_disconnect (instance: object, handler_id);
3114	}
3115
3116	/* Epilogue {{{1 */
3117	/* vim:set foldmethod=marker: */
3118