2 * Copyright © 2010 Codethink Limited
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published
6 * by the Free Software Foundation; either version 2 of the licence or (at
7 * your option) any later version.
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.
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
17 * Boston, MA 02111-1307, USA.
19 * Authors: Ryan Lortie <desrt@desrt.ca>
25 #include "gapplication.h"
27 #include "gapplicationcommandline.h"
28 #include "gsimpleactiongroup.h"
29 #include "gremoteactiongroup.h"
30 #include "gapplicationimpl.h"
31 #include "gactiongroup.h"
32 #include "gactionmap.h"
33 #include "gmenumodel.h"
34 #include "gsettings.h"
36 #include "gioenumtypes.h"
45 * SECTION:gapplication
46 * @title: GApplication
47 * @short_description: Core application class
49 * A #GApplication is the foundation of an application. It wraps some
50 * low-level platform-specific services and is intended to act as the
51 * foundation for higher-level application classes such as
52 * #GtkApplication or #MxApplication. In general, you should not use
53 * this class outside of a higher level framework.
55 * GApplication provides convenient life cycle management by maintaining
56 * a <firstterm>use count</firstterm> for the primary application instance.
57 * The use count can be changed using g_application_hold() and
58 * g_application_release(). If it drops to zero, the application exits.
59 * Higher-level classes such as #GtkApplication employ the use count to
60 * ensure that the application stays alive as long as it has any opened
63 * Another feature that GApplication (optionally) provides is process
64 * uniqueness. Applications can make use of this functionality by
65 * providing a unique application ID. If given, only one application
66 * with this ID can be running at a time per session. The session
67 * concept is platform-dependent, but corresponds roughly to a graphical
68 * desktop login. When your application is launched again, its
69 * arguments are passed through platform communication to the already
70 * running program. The already running instance of the program is
71 * called the <firstterm>primary instance</firstterm>; for non-unique
72 * applications this is the always the current instance.
73 * On Linux, the D-Bus session bus is used for communication.
75 * The use of #GApplication differs from some other commonly-used
76 * uniqueness libraries (such as libunique) in important ways. The
77 * application is not expected to manually register itself and check if
78 * it is the primary instance. Instead, the <code>main()</code>
79 * function of a #GApplication should do very little more than
80 * instantiating the application instance, possibly connecting signal
81 * handlers, then calling g_application_run(). All checks for
82 * uniqueness are done internally. If the application is the primary
83 * instance then the startup signal is emitted and the mainloop runs.
84 * If the application is not the primary instance then a signal is sent
85 * to the primary instance and g_application_run() promptly returns.
86 * See the code examples below.
88 * If used, the expected form of an application identifier is very close
90 * <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-interface">DBus bus name</ulink>.
91 * Examples include: "com.example.MyApp", "org.example.internal-apps.Calculator".
92 * For details on valid application identifiers, see g_application_id_is_valid().
94 * On Linux, the application identifier is claimed as a well-known bus name
95 * on the user's session bus. This means that the uniqueness of your
96 * application is scoped to the current session. It also means that your
97 * application may provide additional services (through registration of other
98 * object paths) at that bus name. The registration of these object paths
99 * should be done with the shared GDBus session bus. Note that due to the
100 * internal architecture of GDBus, method calls can be dispatched at any time
101 * (even if a main loop is not running). For this reason, you must ensure that
102 * any object paths that you wish to register are registered before #GApplication
103 * attempts to acquire the bus name of your application (which happens in
104 * g_application_register()). Unfortunately, this means that you cannot use
105 * g_application_get_is_remote() to decide if you want to register object paths.
107 * GApplication also implements the #GActionGroup and #GActionMap
108 * interfaces and lets you easily export actions by adding them with
109 * g_action_map_add_action(). When invoking an action by calling
110 * g_action_group_activate_action() on the application, it is always
111 * invoked in the primary instance. The actions are also exported on
112 * the session bus, and GIO provides the #GDBusActionGroup wrapper to
113 * conveniently access them remotely. GIO provides a #GDBusMenuModel wrapper
114 * for remote access to exported #GMenuModels.
116 * There is a number of different entry points into a GApplication:
118 * <listitem>via 'Activate' (i.e. just starting the application)</listitem>
119 * <listitem>via 'Open' (i.e. opening some files)</listitem>
120 * <listitem>by handling a command-line</listitem>
121 * <listitem>via activating an action</listitem>
123 * The #GApplication::startup signal lets you handle the application
124 * initialization for all of these in a single place.
126 * Regardless of which of these entry points is used to start the application,
127 * GApplication passes some <firstterm id="platform-data">platform
128 * data</firstterm> from the launching instance to the primary instance,
129 * in the form of a #GVariant dictionary mapping strings to variants.
130 * To use platform data, override the @before_emit or @after_emit virtual
131 * functions in your #GApplication subclass. When dealing with
132 * #GApplicationCommandLine objects, the platform data is directly
133 * available via g_application_command_line_get_cwd(),
134 * g_application_command_line_get_environ() and
135 * g_application_command_line_get_platform_data().
137 * As the name indicates, the platform data may vary depending on the
138 * operating system, but it always includes the current directory (key
139 * "cwd"), and optionally the environment (ie the set of environment
140 * variables and their values) of the calling process (key "environ").
141 * The environment is only added to the platform data if the
142 * %G_APPLICATION_SEND_ENVIRONMENT flag is set. #GApplication subclasses
143 * can add their own platform data by overriding the @add_platform_data
144 * virtual function. For instance, #GtkApplication adds startup notification
147 * To parse commandline arguments you may handle the
148 * #GApplication::command-line signal or override the local_command_line()
149 * vfunc, to parse them in either the primary instance or the local instance,
152 * <example id="gapplication-example-open"><title>Opening files with a GApplication</title>
154 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-open.c">
155 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
160 * <example id="gapplication-example-actions"><title>A GApplication with actions</title>
162 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-actions.c">
163 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
168 * <example id="gapplication-example-menu"><title>A GApplication with menus</title>
170 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-menu.c">
171 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
176 * <example id="gapplication-example-dbushooks"><title>Using extra D-Bus hooks with a GApplication</title>
178 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-dbushooks.c">
179 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
187 * @startup: invoked on the primary instance immediately after registration
188 * @shutdown: invoked only on the registered primary instance immediately
189 * after the main loop terminates
190 * @activate: invoked on the primary instance when an activation occurs
191 * @open: invoked on the primary instance when there are files to open
192 * @command_line: invoked on the primary instance when a command-line is
193 * not handled locally
194 * @local_command_line: invoked (locally) when the process has been invoked
195 * via commandline execution (as opposed to, say, D-Bus activation - which
196 * is not currently supported by GApplication). The virtual function has
197 * the chance to inspect (and possibly replace) the list of command line
198 * arguments. See g_application_run() for more information.
199 * @before_emit: invoked on the primary instance before 'activate', 'open',
200 * 'command-line' or any action invocation, gets the 'platform data' from
201 * the calling instance
202 * @after_emit: invoked on the primary instance after 'activate', 'open',
203 * 'command-line' or any action invocation, gets the 'platform data' from
204 * the calling instance
205 * @add_platform_data: invoked (locally) to add 'platform data' to be sent to
206 * the primary instance when activating, opening or invoking actions
207 * @quit_mainloop: Used to be invoked on the primary instance when the use
208 * count of the application drops to zero (and after any inactivity
209 * timeout, if requested). Not used anymore since 2.32
210 * @run_mainloop: Used to be invoked on the primary instance from
211 * g_application_run() if the use-count is non-zero. Since 2.32,
212 * GApplication is iterating the main context directly and is not
213 * using @run_mainloop anymore
214 * @dbus_register: invoked locally during registration, if the application is
215 * using its D-Bus backend. You can use this to export extra objects on the
216 * bus, that need to exist before the application tries to own the bus name.
217 * The function is passed the #GDBusConnection to to session bus, and the
218 * object path that #GApplication will use to export is D-Bus API.
219 * If this function returns %TRUE, registration will proceed; otherwise
220 * registration will abort. Since: 2.34
221 * @dbus_unregister: invoked locally during unregistration, if the application
222 * is using its D-Bus backend. Use this to undo anything done by the
223 * @dbus_register vfunc. Since: 2.34
225 * Virtual function table for #GApplication.
230 struct _GApplicationPrivate
232 GApplicationFlags flags;
235 GActionGroup *actions;
236 GMenuModel *app_menu;
239 guint inactivity_timeout_id;
240 guint inactivity_timeout;
243 guint is_registered : 1;
245 guint did_startup : 1;
246 guint did_shutdown : 1;
247 guint must_quit_now : 1;
249 GRemoteActionGroup *remote_actions;
250 GApplicationImpl *impl;
260 PROP_INACTIVITY_TIMEOUT,
275 static guint g_application_signals[NR_SIGNALS];
277 static void g_application_action_group_iface_init (GActionGroupInterface *);
278 static void g_application_action_map_iface_init (GActionMapInterface *);
279 G_DEFINE_TYPE_WITH_CODE (GApplication, g_application, G_TYPE_OBJECT,
280 G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, g_application_action_group_iface_init)
281 G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_MAP, g_application_action_map_iface_init))
283 /* GApplicationExportedActions {{{1 */
285 /* We create a subclass of GSimpleActionGroup that implements
286 * GRemoteActionGroup and deals with the platform data using
287 * GApplication's before/after_emit vfuncs. This is the action group we
290 * We could implement GRemoteActionGroup on GApplication directly, but
291 * this would be potentially extremely confusing to have exposed as part
292 * of the public API of GApplication. We certainly don't want anyone in
293 * the same process to be calling these APIs...
295 typedef GSimpleActionGroupClass GApplicationExportedActionsClass;
298 GSimpleActionGroup parent_instance;
299 GApplication *application;
300 } GApplicationExportedActions;
302 static GType g_application_exported_actions_get_type (void);
303 static void g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface);
304 G_DEFINE_TYPE_WITH_CODE (GApplicationExportedActions, g_application_exported_actions, G_TYPE_SIMPLE_ACTION_GROUP,
305 G_IMPLEMENT_INTERFACE (G_TYPE_REMOTE_ACTION_GROUP, g_application_exported_actions_iface_init))
308 g_application_exported_actions_activate_action_full (GRemoteActionGroup *remote,
309 const gchar *action_name,
311 GVariant *platform_data)
313 GApplicationExportedActions *exported = (GApplicationExportedActions *) remote;
315 G_APPLICATION_GET_CLASS (exported->application)
316 ->before_emit (exported->application, platform_data);
318 g_action_group_activate_action (G_ACTION_GROUP (exported), action_name, parameter);
320 G_APPLICATION_GET_CLASS (exported->application)
321 ->after_emit (exported->application, platform_data);
325 g_application_exported_actions_change_action_state_full (GRemoteActionGroup *remote,
326 const gchar *action_name,
328 GVariant *platform_data)
330 GApplicationExportedActions *exported = (GApplicationExportedActions *) remote;
332 G_APPLICATION_GET_CLASS (exported->application)
333 ->before_emit (exported->application, platform_data);
335 g_action_group_change_action_state (G_ACTION_GROUP (exported), action_name, value);
337 G_APPLICATION_GET_CLASS (exported->application)
338 ->after_emit (exported->application, platform_data);
342 g_application_exported_actions_init (GApplicationExportedActions *actions)
347 g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface)
349 iface->activate_action_full = g_application_exported_actions_activate_action_full;
350 iface->change_action_state_full = g_application_exported_actions_change_action_state_full;
354 g_application_exported_actions_class_init (GApplicationExportedActionsClass *class)
358 static GActionGroup *
359 g_application_exported_actions_new (GApplication *application)
361 GApplicationExportedActions *actions;
363 actions = g_object_new (g_application_exported_actions_get_type (), NULL);
364 actions->application = application;
366 return G_ACTION_GROUP (actions);
369 /* vfunc defaults {{{1 */
371 g_application_real_before_emit (GApplication *application,
372 GVariant *platform_data)
377 g_application_real_after_emit (GApplication *application,
378 GVariant *platform_data)
383 g_application_real_startup (GApplication *application)
385 application->priv->did_startup = TRUE;
389 g_application_real_shutdown (GApplication *application)
391 application->priv->did_shutdown = TRUE;
395 g_application_real_activate (GApplication *application)
397 if (!g_signal_has_handler_pending (application,
398 g_application_signals[SIGNAL_ACTIVATE],
400 G_APPLICATION_GET_CLASS (application)->activate == g_application_real_activate)
402 static gboolean warned;
407 g_warning ("Your application does not implement "
408 "g_application_activate() and has no handlers connected "
409 "to the 'activate' signal. It should do one of these.");
415 g_application_real_open (GApplication *application,
420 if (!g_signal_has_handler_pending (application,
421 g_application_signals[SIGNAL_OPEN],
423 G_APPLICATION_GET_CLASS (application)->open == g_application_real_open)
425 static gboolean warned;
430 g_warning ("Your application claims to support opening files "
431 "but does not implement g_application_open() and has no "
432 "handlers connected to the 'open' signal.");
438 g_application_real_command_line (GApplication *application,
439 GApplicationCommandLine *cmdline)
441 if (!g_signal_has_handler_pending (application,
442 g_application_signals[SIGNAL_COMMAND_LINE],
444 G_APPLICATION_GET_CLASS (application)->command_line == g_application_real_command_line)
446 static gboolean warned;
451 g_warning ("Your application claims to support custom command line "
452 "handling but does not implement g_application_command_line() "
453 "and has no handlers connected to the 'command-line' signal.");
462 g_application_real_local_command_line (GApplication *application,
466 if (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE)
471 GError *error = NULL;
474 if (!g_application_register (application, NULL, &error))
476 g_critical ("%s", error->message);
477 g_error_free (error);
482 n_args = g_strv_length (*arguments);
484 if (application->priv->flags & G_APPLICATION_IS_SERVICE)
486 if ((*exit_status = n_args > 1))
488 g_printerr ("GApplication service mode takes no arguments.\n");
489 application->priv->flags &= ~G_APPLICATION_IS_SERVICE;
497 g_application_activate (application);
503 if (~application->priv->flags & G_APPLICATION_HANDLES_OPEN)
505 g_critical ("This application can not open files.");
514 n_files = n_args - 1;
515 files = g_new (GFile *, n_files);
517 for (i = 0; i < n_files; i++)
518 files[i] = g_file_new_for_commandline_arg ((*arguments)[i + 1]);
520 g_application_open (application, files, n_files, "");
522 for (i = 0; i < n_files; i++)
523 g_object_unref (files[i]);
535 g_application_real_add_platform_data (GApplication *application,
536 GVariantBuilder *builder)
541 g_application_real_dbus_register (GApplication *application,
542 GDBusConnection *connection,
543 const gchar *object_path,
550 g_application_real_dbus_unregister (GApplication *application,
551 GDBusConnection *connection,
552 const gchar *object_path)
556 /* GObject implementation stuff {{{1 */
558 g_application_set_property (GObject *object,
563 GApplication *application = G_APPLICATION (object);
567 case PROP_APPLICATION_ID:
568 g_application_set_application_id (application,
569 g_value_get_string (value));
573 g_application_set_flags (application, g_value_get_flags (value));
576 case PROP_INACTIVITY_TIMEOUT:
577 g_application_set_inactivity_timeout (application,
578 g_value_get_uint (value));
581 case PROP_ACTION_GROUP:
582 g_clear_object (&application->priv->actions);
583 application->priv->actions = g_value_dup_object (value);
587 g_assert_not_reached ();
592 * g_application_set_action_group:
593 * @application: a #GApplication
594 * @action_group: (allow-none): a #GActionGroup, or %NULL
596 * This used to be how actions were associated with a #GApplication.
597 * Now there is #GActionMap for that.
601 * Deprecated:2.32:Use the #GActionMap interface instead. Never ever
602 * mix use of this API with use of #GActionMap on the same @application
603 * or things will go very badly wrong. This function is known to
604 * introduce buggy behaviour (ie: signals not emitted on changes to the
605 * action group), so you should really use #GActionMap instead.
608 g_application_set_action_group (GApplication *application,
609 GActionGroup *action_group)
611 g_return_if_fail (G_IS_APPLICATION (application));
612 g_return_if_fail (!application->priv->is_registered);
614 if (application->priv->actions != NULL)
615 g_object_unref (application->priv->actions);
617 application->priv->actions = action_group;
619 if (application->priv->actions != NULL)
620 g_object_ref (application->priv->actions);
624 g_application_get_property (GObject *object,
629 GApplication *application = G_APPLICATION (object);
633 case PROP_APPLICATION_ID:
634 g_value_set_string (value,
635 g_application_get_application_id (application));
639 g_value_set_flags (value,
640 g_application_get_flags (application));
643 case PROP_IS_REGISTERED:
644 g_value_set_boolean (value,
645 g_application_get_is_registered (application));
649 g_value_set_boolean (value,
650 g_application_get_is_remote (application));
653 case PROP_INACTIVITY_TIMEOUT:
654 g_value_set_uint (value,
655 g_application_get_inactivity_timeout (application));
659 g_assert_not_reached ();
664 g_application_constructed (GObject *object)
666 GApplication *application = G_APPLICATION (object);
668 if (g_application_get_default () == NULL)
669 g_application_set_default (application);
673 g_application_finalize (GObject *object)
675 GApplication *application = G_APPLICATION (object);
677 if (application->priv->impl)
678 g_application_impl_destroy (application->priv->impl);
679 g_free (application->priv->id);
681 if (g_application_get_default () == application)
682 g_application_set_default (NULL);
684 if (application->priv->actions)
685 g_object_unref (application->priv->actions);
687 G_OBJECT_CLASS (g_application_parent_class)
692 g_application_init (GApplication *application)
694 application->priv = G_TYPE_INSTANCE_GET_PRIVATE (application,
696 GApplicationPrivate);
698 application->priv->actions = g_application_exported_actions_new (application);
700 /* application->priv->actions is the one and only ref on the group, so when
701 * we dispose, the action group will die, disconnecting all signals.
703 g_signal_connect_swapped (application->priv->actions, "action-added",
704 G_CALLBACK (g_action_group_action_added), application);
705 g_signal_connect_swapped (application->priv->actions, "action-enabled-changed",
706 G_CALLBACK (g_action_group_action_enabled_changed), application);
707 g_signal_connect_swapped (application->priv->actions, "action-state-changed",
708 G_CALLBACK (g_action_group_action_state_changed), application);
709 g_signal_connect_swapped (application->priv->actions, "action-removed",
710 G_CALLBACK (g_action_group_action_removed), application);
714 g_application_class_init (GApplicationClass *class)
716 GObjectClass *object_class = G_OBJECT_CLASS (class);
718 object_class->constructed = g_application_constructed;
719 object_class->finalize = g_application_finalize;
720 object_class->get_property = g_application_get_property;
721 object_class->set_property = g_application_set_property;
723 class->before_emit = g_application_real_before_emit;
724 class->after_emit = g_application_real_after_emit;
725 class->startup = g_application_real_startup;
726 class->shutdown = g_application_real_shutdown;
727 class->activate = g_application_real_activate;
728 class->open = g_application_real_open;
729 class->command_line = g_application_real_command_line;
730 class->local_command_line = g_application_real_local_command_line;
731 class->add_platform_data = g_application_real_add_platform_data;
732 class->dbus_register = g_application_real_dbus_register;
733 class->dbus_unregister = g_application_real_dbus_unregister;
735 g_object_class_install_property (object_class, PROP_APPLICATION_ID,
736 g_param_spec_string ("application-id",
737 P_("Application identifier"),
738 P_("The unique identifier for the application"),
739 NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
740 G_PARAM_STATIC_STRINGS));
742 g_object_class_install_property (object_class, PROP_FLAGS,
743 g_param_spec_flags ("flags",
744 P_("Application flags"),
745 P_("Flags specifying the behaviour of the application"),
746 G_TYPE_APPLICATION_FLAGS, G_APPLICATION_FLAGS_NONE,
747 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
749 g_object_class_install_property (object_class, PROP_IS_REGISTERED,
750 g_param_spec_boolean ("is-registered",
752 P_("If g_application_register() has been called"),
753 FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
755 g_object_class_install_property (object_class, PROP_IS_REMOTE,
756 g_param_spec_boolean ("is-remote",
758 P_("If this application instance is remote"),
759 FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
761 g_object_class_install_property (object_class, PROP_INACTIVITY_TIMEOUT,
762 g_param_spec_uint ("inactivity-timeout",
763 P_("Inactivity timeout"),
764 P_("Time (ms) to stay alive after becoming idle"),
766 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
768 g_object_class_install_property (object_class, PROP_ACTION_GROUP,
769 g_param_spec_object ("action-group",
771 P_("The group of actions that the application exports"),
773 G_PARAM_DEPRECATED | G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
776 * GApplication::startup:
777 * @application: the application
779 * The ::startup signal is emitted on the primary instance immediately
780 * after registration. See g_application_register().
782 g_application_signals[SIGNAL_STARTUP] =
783 g_signal_new ("startup", G_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
784 G_STRUCT_OFFSET (GApplicationClass, startup),
785 NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
788 * GApplication::shutdown:
789 * @application: the application
791 * The ::shutdown signal is emitted only on the registered primary instance
792 * immediately after the main loop terminates.
794 g_application_signals[SIGNAL_SHUTDOWN] =
795 g_signal_new ("shutdown", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
796 G_STRUCT_OFFSET (GApplicationClass, shutdown),
797 NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
800 * GApplication::activate:
801 * @application: the application
803 * The ::activate signal is emitted on the primary instance when an
804 * activation occurs. See g_application_activate().
806 g_application_signals[SIGNAL_ACTIVATE] =
807 g_signal_new ("activate", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
808 G_STRUCT_OFFSET (GApplicationClass, activate),
809 NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
813 * GApplication::open:
814 * @application: the application
815 * @files: (array length=n_files) (element-type GFile): an array of #GFiles
816 * @n_files: the length of @files
817 * @hint: a hint provided by the calling instance
819 * The ::open signal is emitted on the primary instance when there are
820 * files to open. See g_application_open() for more information.
822 g_application_signals[SIGNAL_OPEN] =
823 g_signal_new ("open", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
824 G_STRUCT_OFFSET (GApplicationClass, open),
826 G_TYPE_NONE, 3, G_TYPE_POINTER, G_TYPE_INT, G_TYPE_STRING);
829 * GApplication::command-line:
830 * @application: the application
831 * @command_line: a #GApplicationCommandLine representing the
834 * The ::command-line signal is emitted on the primary instance when
835 * a commandline is not handled locally. See g_application_run() and
836 * the #GApplicationCommandLine documentation for more information.
838 * Returns: An integer that is set as the exit status for the calling
839 * process. See g_application_command_line_set_exit_status().
841 g_application_signals[SIGNAL_COMMAND_LINE] =
842 g_signal_new ("command-line", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
843 G_STRUCT_OFFSET (GApplicationClass, command_line),
844 g_signal_accumulator_first_wins, NULL,
846 G_TYPE_INT, 1, G_TYPE_APPLICATION_COMMAND_LINE);
848 g_type_class_add_private (class, sizeof (GApplicationPrivate));
852 get_platform_data (GApplication *application)
854 GVariantBuilder *builder;
857 builder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}"));
860 gchar *cwd = g_get_current_dir ();
861 g_variant_builder_add (builder, "{sv}", "cwd",
862 g_variant_new_bytestring (cwd));
866 if (application->priv->flags & G_APPLICATION_SEND_ENVIRONMENT)
871 envp = g_get_environ ();
872 array = g_variant_new_bytestring_array ((const gchar **) envp, -1);
875 g_variant_builder_add (builder, "{sv}", "environ", array);
878 G_APPLICATION_GET_CLASS (application)->
879 add_platform_data (application, builder);
881 result = g_variant_builder_end (builder);
882 g_variant_builder_unref (builder);
887 /* Application ID validity {{{1 */
890 * g_application_id_is_valid:
891 * @application_id: a potential application identifier
893 * Checks if @application_id is a valid application identifier.
895 * A valid ID is required for calls to g_application_new() and
896 * g_application_set_application_id().
898 * For convenience, the restrictions on application identifiers are
901 * <listitem>Application identifiers must contain only the ASCII characters "[A-Z][a-z][0-9]_-." and must not begin with a digit.</listitem>
902 * <listitem>Application identifiers must contain at least one '.' (period) character (and thus at least three elements).</listitem>
903 * <listitem>Application identifiers must not begin or end with a '.' (period) character.</listitem>
904 * <listitem>Application identifiers must not contain consecutive '.' (period) characters.</listitem>
905 * <listitem>Application identifiers must not exceed 255 characters.</listitem>
908 * Returns: %TRUE if @application_id is valid
911 g_application_id_is_valid (const gchar *application_id)
917 len = strlen (application_id);
922 if (!g_ascii_isalpha (application_id[0]))
925 if (application_id[len-1] == '.')
931 for (; *application_id; application_id++)
933 if (g_ascii_isalnum (*application_id) ||
934 (*application_id == '-') ||
935 (*application_id == '_'))
939 else if (allow_dot && *application_id == '.')
954 /* Public Constructor {{{1 */
957 * @application_id: (allow-none): the application id
958 * @flags: the application flags
960 * Creates a new #GApplication instance.
962 * This function calls g_type_init() for you.
964 * If non-%NULL, the application id must be valid. See
965 * g_application_id_is_valid().
967 * If no application ID is given then some features of #GApplication
968 * (most notably application uniqueness) will be disabled.
970 * Returns: a new #GApplication instance
973 g_application_new (const gchar *application_id,
974 GApplicationFlags flags)
976 g_return_val_if_fail (application_id == NULL || g_application_id_is_valid (application_id), NULL);
980 return g_object_new (G_TYPE_APPLICATION,
981 "application-id", application_id,
986 /* Simple get/set: application id, flags, inactivity timeout {{{1 */
988 * g_application_get_application_id:
989 * @application: a #GApplication
991 * Gets the unique identifier for @application.
993 * Returns: the identifier for @application, owned by @application
998 g_application_get_application_id (GApplication *application)
1000 g_return_val_if_fail (G_IS_APPLICATION (application), NULL);
1002 return application->priv->id;
1006 * g_application_set_application_id:
1007 * @application: a #GApplication
1008 * @application_id: (allow-none): the identifier for @application
1010 * Sets the unique identifier for @application.
1012 * The application id can only be modified if @application has not yet
1015 * If non-%NULL, the application id must be valid. See
1016 * g_application_id_is_valid().
1021 g_application_set_application_id (GApplication *application,
1022 const gchar *application_id)
1024 g_return_if_fail (G_IS_APPLICATION (application));
1026 if (g_strcmp0 (application->priv->id, application_id) != 0)
1028 g_return_if_fail (application_id == NULL || g_application_id_is_valid (application_id));
1029 g_return_if_fail (!application->priv->is_registered);
1031 g_free (application->priv->id);
1032 application->priv->id = g_strdup (application_id);
1034 g_object_notify (G_OBJECT (application), "application-id");
1039 * g_application_get_flags:
1040 * @application: a #GApplication
1042 * Gets the flags for @application.
1044 * See #GApplicationFlags.
1046 * Returns: the flags for @application
1051 g_application_get_flags (GApplication *application)
1053 g_return_val_if_fail (G_IS_APPLICATION (application), 0);
1055 return application->priv->flags;
1059 * g_application_set_flags:
1060 * @application: a #GApplication
1061 * @flags: the flags for @application
1063 * Sets the flags for @application.
1065 * The flags can only be modified if @application has not yet been
1068 * See #GApplicationFlags.
1073 g_application_set_flags (GApplication *application,
1074 GApplicationFlags flags)
1076 g_return_if_fail (G_IS_APPLICATION (application));
1078 if (application->priv->flags != flags)
1080 g_return_if_fail (!application->priv->is_registered);
1082 application->priv->flags = flags;
1084 g_object_notify (G_OBJECT (application), "flags");
1089 * g_application_get_inactivity_timeout:
1090 * @application: a #GApplication
1092 * Gets the current inactivity timeout for the application.
1094 * This is the amount of time (in milliseconds) after the last call to
1095 * g_application_release() before the application stops running.
1097 * Returns: the timeout, in milliseconds
1102 g_application_get_inactivity_timeout (GApplication *application)
1104 g_return_val_if_fail (G_IS_APPLICATION (application), 0);
1106 return application->priv->inactivity_timeout;
1110 * g_application_set_inactivity_timeout:
1111 * @application: a #GApplication
1112 * @inactivity_timeout: the timeout, in milliseconds
1114 * Sets the current inactivity timeout for the application.
1116 * This is the amount of time (in milliseconds) after the last call to
1117 * g_application_release() before the application stops running.
1119 * This call has no side effects of its own. The value set here is only
1120 * used for next time g_application_release() drops the use count to
1121 * zero. Any timeouts currently in progress are not impacted.
1126 g_application_set_inactivity_timeout (GApplication *application,
1127 guint inactivity_timeout)
1129 g_return_if_fail (G_IS_APPLICATION (application));
1131 if (application->priv->inactivity_timeout != inactivity_timeout)
1133 application->priv->inactivity_timeout = inactivity_timeout;
1135 g_object_notify (G_OBJECT (application), "inactivity-timeout");
1138 /* Read-only property getters (is registered, is remote, dbus stuff) {{{1 */
1140 * g_application_get_is_registered:
1141 * @application: a #GApplication
1143 * Checks if @application is registered.
1145 * An application is registered if g_application_register() has been
1146 * successfully called.
1148 * Returns: %TRUE if @application is registered
1153 g_application_get_is_registered (GApplication *application)
1155 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1157 return application->priv->is_registered;
1161 * g_application_get_is_remote:
1162 * @application: a #GApplication
1164 * Checks if @application is remote.
1166 * If @application is remote then it means that another instance of
1167 * application already exists (the 'primary' instance). Calls to
1168 * perform actions on @application will result in the actions being
1169 * performed by the primary instance.
1171 * The value of this property cannot be accessed before
1172 * g_application_register() has been called. See
1173 * g_application_get_is_registered().
1175 * Returns: %TRUE if @application is remote
1180 g_application_get_is_remote (GApplication *application)
1182 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1183 g_return_val_if_fail (application->priv->is_registered, FALSE);
1185 return application->priv->is_remote;
1189 * g_application_get_dbus_connection:
1190 * @application: a #GApplication
1192 * Gets the #GDBusConnection being used by the application, or %NULL.
1194 * If #GApplication is using its D-Bus backend then this function will
1195 * return the #GDBusConnection being used for uniqueness and
1196 * communication with the desktop environment and other instances of the
1199 * If #GApplication is not using D-Bus then this function will return
1200 * %NULL. This includes the situation where the D-Bus backend would
1201 * normally be in use but we were unable to connect to the bus.
1203 * This function must not be called before the application has been
1204 * registered. See g_application_get_is_registered().
1206 * Returns: (transfer none): a #GDBusConnection, or %NULL
1211 g_application_get_dbus_connection (GApplication *application)
1213 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1214 g_return_val_if_fail (application->priv->is_registered, FALSE);
1216 return g_application_impl_get_dbus_connection (application->priv->impl);
1220 * g_application_get_dbus_object_path:
1221 * @application: a #GApplication
1223 * Gets the D-Bus object path being used by the application, or %NULL.
1225 * If #GApplication is using its D-Bus backend then this function will
1226 * return the D-Bus object path that #GApplication is using. If the
1227 * application is the primary instance then there is an object published
1228 * at this path. If the application is not the primary instance then
1229 * the result of this function is undefined.
1231 * If #GApplication is not using D-Bus then this function will return
1232 * %NULL. This includes the situation where the D-Bus backend would
1233 * normally be in use but we were unable to connect to the bus.
1235 * This function must not be called before the application has been
1236 * registered. See g_application_get_is_registered().
1238 * Returns: the object path, or %NULL
1243 g_application_get_dbus_object_path (GApplication *application)
1245 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1246 g_return_val_if_fail (application->priv->is_registered, FALSE);
1248 return g_application_impl_get_dbus_object_path (application->priv->impl);
1253 * g_application_register:
1254 * @application: a #GApplication
1255 * @cancellable: (allow-none): a #GCancellable, or %NULL
1256 * @error: a pointer to a NULL #GError, or %NULL
1258 * Attempts registration of the application.
1260 * This is the point at which the application discovers if it is the
1261 * primary instance or merely acting as a remote for an already-existing
1262 * primary instance. This is implemented by attempting to acquire the
1263 * application identifier as a unique bus name on the session bus using
1266 * If there is no application ID or if %G_APPLICATION_NON_UNIQUE was
1267 * given, then this process will always become the primary instance.
1269 * Due to the internal architecture of GDBus, method calls can be
1270 * dispatched at any time (even if a main loop is not running). For
1271 * this reason, you must ensure that any object paths that you wish to
1272 * register are registered before calling this function.
1274 * If the application has already been registered then %TRUE is
1275 * returned with no work performed.
1277 * The #GApplication::startup signal is emitted if registration succeeds
1278 * and @application is the primary instance (including the non-unique
1281 * In the event of an error (such as @cancellable being cancelled, or a
1282 * failure to connect to the session bus), %FALSE is returned and @error
1283 * is set appropriately.
1285 * Note: the return value of this function is not an indicator that this
1286 * instance is or is not the primary instance of the application. See
1287 * g_application_get_is_remote() for that.
1289 * Returns: %TRUE if registration succeeded
1294 g_application_register (GApplication *application,
1295 GCancellable *cancellable,
1298 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1300 if (!application->priv->is_registered)
1302 if (application->priv->id == NULL)
1303 application->priv->flags |= G_APPLICATION_NON_UNIQUE;
1305 application->priv->impl =
1306 g_application_impl_register (application, application->priv->id,
1307 application->priv->flags,
1308 application->priv->actions,
1309 &application->priv->remote_actions,
1310 cancellable, error);
1312 if (application->priv->impl == NULL)
1315 application->priv->is_remote = application->priv->remote_actions != NULL;
1316 application->priv->is_registered = TRUE;
1318 g_object_notify (G_OBJECT (application), "is-registered");
1320 if (!application->priv->is_remote)
1322 g_signal_emit (application, g_application_signals[SIGNAL_STARTUP], 0);
1324 if (!application->priv->did_startup)
1325 g_critical ("GApplication subclass '%s' failed to chain up on"
1326 " ::startup (from start of override function)",
1327 G_OBJECT_TYPE_NAME (application));
1334 /* Hold/release {{{1 */
1336 * g_application_hold:
1337 * @application: a #GApplication
1339 * Increases the use count of @application.
1341 * Use this function to indicate that the application has a reason to
1342 * continue to run. For example, g_application_hold() is called by GTK+
1343 * when a toplevel window is on the screen.
1345 * To cancel the hold, call g_application_release().
1348 g_application_hold (GApplication *application)
1350 g_return_if_fail (G_IS_APPLICATION (application));
1352 if (application->priv->inactivity_timeout_id)
1354 g_source_remove (application->priv->inactivity_timeout_id);
1355 application->priv->inactivity_timeout_id = 0;
1358 application->priv->use_count++;
1362 inactivity_timeout_expired (gpointer data)
1364 GApplication *application = G_APPLICATION (data);
1366 application->priv->inactivity_timeout_id = 0;
1368 return G_SOURCE_REMOVE;
1373 * g_application_release:
1374 * @application: a #GApplication
1376 * Decrease the use count of @application.
1378 * When the use count reaches zero, the application will stop running.
1380 * Never call this function except to cancel the effect of a previous
1381 * call to g_application_hold().
1384 g_application_release (GApplication *application)
1386 g_return_if_fail (G_IS_APPLICATION (application));
1388 application->priv->use_count--;
1390 if (application->priv->use_count == 0 && application->priv->inactivity_timeout)
1391 application->priv->inactivity_timeout_id = g_timeout_add (application->priv->inactivity_timeout,
1392 inactivity_timeout_expired, application);
1395 /* Activate, Open {{{1 */
1397 * g_application_activate:
1398 * @application: a #GApplication
1400 * Activates the application.
1402 * In essence, this results in the #GApplication::activate signal being
1403 * emitted in the primary instance.
1405 * The application must be registered before calling this function.
1410 g_application_activate (GApplication *application)
1412 g_return_if_fail (G_IS_APPLICATION (application));
1413 g_return_if_fail (application->priv->is_registered);
1415 if (application->priv->is_remote)
1416 g_application_impl_activate (application->priv->impl,
1417 get_platform_data (application));
1420 g_signal_emit (application, g_application_signals[SIGNAL_ACTIVATE], 0);
1424 * g_application_open:
1425 * @application: a #GApplication
1426 * @files: (array length=n_files): an array of #GFiles to open
1427 * @n_files: the length of the @files array
1428 * @hint: a hint (or ""), but never %NULL
1430 * Opens the given files.
1432 * In essence, this results in the #GApplication::open signal being emitted
1433 * in the primary instance.
1435 * @n_files must be greater than zero.
1437 * @hint is simply passed through to the ::open signal. It is
1438 * intended to be used by applications that have multiple modes for
1439 * opening files (eg: "view" vs "edit", etc). Unless you have a need
1440 * for this functionality, you should use "".
1442 * The application must be registered before calling this function
1443 * and it must have the %G_APPLICATION_HANDLES_OPEN flag set.
1448 g_application_open (GApplication *application,
1453 g_return_if_fail (G_IS_APPLICATION (application));
1454 g_return_if_fail (application->priv->flags &
1455 G_APPLICATION_HANDLES_OPEN);
1456 g_return_if_fail (application->priv->is_registered);
1458 if (application->priv->is_remote)
1459 g_application_impl_open (application->priv->impl,
1460 files, n_files, hint,
1461 get_platform_data (application));
1464 g_signal_emit (application, g_application_signals[SIGNAL_OPEN],
1465 0, files, n_files, hint);
1470 * g_application_run:
1471 * @application: a #GApplication
1472 * @argc: the argc from main() (or 0 if @argv is %NULL)
1473 * @argv: (array length=argc) (allow-none): the argv from main(), or %NULL
1475 * Runs the application.
1477 * This function is intended to be run from main() and its return value
1478 * is intended to be returned by main(). Although you are expected to pass
1479 * the @argc, @argv parameters from main() to this function, it is possible
1480 * to pass %NULL if @argv is not available or commandline handling is not
1483 * First, the local_command_line() virtual function is invoked.
1484 * This function always runs on the local instance. It gets passed a pointer
1485 * to a %NULL-terminated copy of @argv and is expected to remove the arguments
1486 * that it handled (shifting up remaining arguments). See
1487 * <xref linkend="gapplication-example-cmdline2"/> for an example of
1488 * parsing @argv manually. Alternatively, you may use the #GOptionContext API,
1489 * after setting <literal>argc = g_strv_length (argv);</literal>.
1491 * The last argument to local_command_line() is a pointer to the @status
1492 * variable which can used to set the exit status that is returned from
1493 * g_application_run().
1495 * If local_command_line() returns %TRUE, the command line is expected
1496 * to be completely handled, including possibly registering as the primary
1497 * instance, calling g_application_activate() or g_application_open(), etc.
1499 * If local_command_line() returns %FALSE then the application is registered
1500 * and the #GApplication::command-line signal is emitted in the primary
1501 * instance (which may or may not be this instance). The signal handler
1502 * gets passed a #GApplicationCommandLine object that (among other things)
1503 * contains the remaining commandline arguments that have not been handled
1504 * by local_command_line().
1506 * If the application has the %G_APPLICATION_HANDLES_COMMAND_LINE
1507 * flag set then the default implementation of local_command_line()
1508 * always returns %FALSE immediately, resulting in the commandline
1509 * always being handled in the primary instance.
1511 * Otherwise, the default implementation of local_command_line() tries
1512 * to do a couple of things that are probably reasonable for most
1513 * applications. First, g_application_register() is called to attempt
1514 * to register the application. If that works, then the command line
1515 * arguments are inspected. If no commandline arguments are given, then
1516 * g_application_activate() is called. If commandline arguments are
1517 * given and the %G_APPLICATION_HANDLES_OPEN flag is set then they
1518 * are assumed to be filenames and g_application_open() is called.
1520 * If you need to handle commandline arguments that are not filenames,
1521 * and you don't mind commandline handling to happen in the primary
1522 * instance, you should set %G_APPLICATION_HANDLES_COMMAND_LINE and
1523 * process the commandline arguments in your #GApplication::command-line
1524 * signal handler, either manually or using the #GOptionContext API.
1526 * If you are interested in doing more complicated local handling of the
1527 * commandline then you should implement your own #GApplication subclass
1528 * and override local_command_line(). In this case, you most likely want
1529 * to return %TRUE from your local_command_line() implementation to
1530 * suppress the default handling. See
1531 * <xref linkend="gapplication-example-cmdline2"/> for an example.
1533 * If, after the above is done, the use count of the application is zero
1534 * then the exit status is returned immediately. If the use count is
1535 * non-zero then the default main context is iterated until the use count
1536 * falls to zero, at which point 0 is returned.
1538 * If the %G_APPLICATION_IS_SERVICE flag is set, then the exiting at
1539 * use count of zero is delayed for a while (ie: the instance stays
1540 * around to provide its <emphasis>service</emphasis> to others).
1542 * Returns: the exit status
1547 g_application_run (GApplication *application,
1555 g_return_val_if_fail (G_IS_APPLICATION (application), 1);
1556 g_return_val_if_fail (argc == 0 || argv != NULL, 1);
1557 g_return_val_if_fail (!application->priv->must_quit_now, 1);
1559 arguments = g_new (gchar *, argc + 1);
1560 for (i = 0; i < argc; i++)
1561 arguments[i] = g_strdup (argv[i]);
1562 arguments[i] = NULL;
1564 if (g_get_prgname () == NULL && argc > 0)
1568 prgname = g_path_get_basename (argv[0]);
1569 g_set_prgname (prgname);
1573 if (!G_APPLICATION_GET_CLASS (application)
1574 ->local_command_line (application, &arguments, &status))
1576 GError *error = NULL;
1578 if (!g_application_register (application, NULL, &error))
1580 g_printerr ("%s", error->message);
1581 g_error_free (error);
1585 if (application->priv->is_remote)
1587 GVariant *platform_data;
1589 platform_data = get_platform_data (application);
1590 status = g_application_impl_command_line (application->priv->impl,
1591 arguments, platform_data);
1595 GApplicationCommandLine *cmdline;
1598 v = g_variant_new_bytestring_array ((const gchar **) arguments, -1);
1599 cmdline = g_object_new (G_TYPE_APPLICATION_COMMAND_LINE,
1600 "arguments", v, NULL);
1601 g_signal_emit (application,
1602 g_application_signals[SIGNAL_COMMAND_LINE],
1603 0, cmdline, &status);
1604 g_object_unref (cmdline);
1608 g_strfreev (arguments);
1610 if (application->priv->flags & G_APPLICATION_IS_SERVICE &&
1611 application->priv->is_registered &&
1612 !application->priv->use_count &&
1613 !application->priv->inactivity_timeout_id)
1615 application->priv->inactivity_timeout_id =
1616 g_timeout_add (10000, inactivity_timeout_expired, application);
1619 while (application->priv->use_count || application->priv->inactivity_timeout_id)
1621 if (application->priv->must_quit_now)
1624 g_main_context_iteration (NULL, TRUE);
1628 if (!application->priv->is_remote)
1630 g_signal_emit (application, g_application_signals[SIGNAL_SHUTDOWN], 0);
1632 if (!application->priv->did_shutdown)
1633 g_critical ("GApplication subclass '%s' failed to chain up on"
1634 " ::shutdown (from end of override function)",
1635 G_OBJECT_TYPE_NAME (application));
1638 if (application->priv->impl)
1639 g_application_impl_flush (application->priv->impl);
1647 g_application_list_actions (GActionGroup *action_group)
1649 GApplication *application = G_APPLICATION (action_group);
1651 g_return_val_if_fail (application->priv->is_registered, NULL);
1653 if (application->priv->remote_actions != NULL)
1654 return g_action_group_list_actions (G_ACTION_GROUP (application->priv->remote_actions));
1656 else if (application->priv->actions != NULL)
1657 return g_action_group_list_actions (application->priv->actions);
1660 /* empty string array */
1661 return g_new0 (gchar *, 1);
1665 g_application_query_action (GActionGroup *group,
1666 const gchar *action_name,
1668 const GVariantType **parameter_type,
1669 const GVariantType **state_type,
1670 GVariant **state_hint,
1673 GApplication *application = G_APPLICATION (group);
1675 g_return_val_if_fail (application->priv->is_registered, FALSE);
1677 if (application->priv->remote_actions != NULL)
1678 return g_action_group_query_action (G_ACTION_GROUP (application->priv->remote_actions),
1686 if (application->priv->actions != NULL)
1687 return g_action_group_query_action (application->priv->actions,
1699 g_application_change_action_state (GActionGroup *action_group,
1700 const gchar *action_name,
1703 GApplication *application = G_APPLICATION (action_group);
1705 g_return_if_fail (application->priv->is_remote ||
1706 application->priv->actions != NULL);
1707 g_return_if_fail (application->priv->is_registered);
1709 if (application->priv->remote_actions)
1710 g_remote_action_group_change_action_state_full (application->priv->remote_actions,
1711 action_name, value, get_platform_data (application));
1714 g_action_group_change_action_state (application->priv->actions, action_name, value);
1718 g_application_activate_action (GActionGroup *action_group,
1719 const gchar *action_name,
1720 GVariant *parameter)
1722 GApplication *application = G_APPLICATION (action_group);
1724 g_return_if_fail (application->priv->is_remote ||
1725 application->priv->actions != NULL);
1726 g_return_if_fail (application->priv->is_registered);
1728 if (application->priv->remote_actions)
1729 g_remote_action_group_activate_action_full (application->priv->remote_actions,
1730 action_name, parameter, get_platform_data (application));
1733 g_action_group_activate_action (application->priv->actions, action_name, parameter);
1737 g_application_lookup_action (GActionMap *action_map,
1738 const gchar *action_name)
1740 GApplication *application = G_APPLICATION (action_map);
1742 g_return_val_if_fail (G_IS_SIMPLE_ACTION_GROUP (application->priv->actions), NULL);
1744 return g_simple_action_group_lookup (G_SIMPLE_ACTION_GROUP (application->priv->actions), action_name);
1748 g_application_add_action (GActionMap *action_map,
1751 GApplication *application = G_APPLICATION (action_map);
1753 g_return_if_fail (G_IS_SIMPLE_ACTION_GROUP (application->priv->actions));
1755 g_simple_action_group_insert (G_SIMPLE_ACTION_GROUP (application->priv->actions), action);
1759 g_application_remove_action (GActionMap *action_map,
1760 const gchar *action_name)
1762 GApplication *application = G_APPLICATION (action_map);
1764 g_return_if_fail (G_IS_SIMPLE_ACTION_GROUP (application->priv->actions));
1766 g_simple_action_group_remove (G_SIMPLE_ACTION_GROUP (application->priv->actions), action_name);
1770 g_application_action_group_iface_init (GActionGroupInterface *iface)
1772 iface->list_actions = g_application_list_actions;
1773 iface->query_action = g_application_query_action;
1774 iface->change_action_state = g_application_change_action_state;
1775 iface->activate_action = g_application_activate_action;
1779 g_application_action_map_iface_init (GActionMapInterface *iface)
1781 iface->lookup_action = g_application_lookup_action;
1782 iface->add_action = g_application_add_action;
1783 iface->remove_action = g_application_remove_action;
1786 /* Default Application {{{1 */
1788 static GApplication *default_app;
1791 * g_application_get_default:
1793 * Returns the default #GApplication instance for this process.
1795 * Normally there is only one #GApplication per process and it becomes
1796 * the default when it is created. You can exercise more control over
1797 * this by using g_application_set_default().
1799 * If there is no default application then %NULL is returned.
1801 * Returns: (transfer none): the default application for this process, or %NULL
1806 g_application_get_default (void)
1812 * g_application_set_default:
1813 * @application: (allow-none): the application to set as default, or %NULL
1815 * Sets or unsets the default application for the process, as returned
1816 * by g_application_get_default().
1818 * This function does not take its own reference on @application. If
1819 * @application is destroyed then the default application will revert
1825 g_application_set_default (GApplication *application)
1827 default_app = application;
1831 * g_application_quit:
1832 * @application: a #GApplication
1834 * Immediately quits the application.
1836 * Upon return to the mainloop, g_application_run() will return,
1837 * calling only the 'shutdown' function before doing so.
1839 * The hold count is ignored.
1841 * The result of calling g_application_run() again after it returns is
1847 g_application_quit (GApplication *application)
1849 g_return_if_fail (G_IS_APPLICATION (application));
1851 application->priv->must_quit_now = TRUE;
1855 /* vim:set foldmethod=marker: */