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 * If used, the expected form of an application identifier is very close
77 * <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-interface">DBus bus name</ulink>.
78 * Examples include: "com.example.MyApp", "org.example.internal-apps.Calculator".
79 * For details on valid application identifiers, see g_application_id_is_valid().
81 * On Linux, the application identifier is claimed as a well-known bus name
82 * on the user's session bus. This means that the uniqueness of your
83 * application is scoped to the current session. It also means that your
84 * application may provide additional services (through registration of other
85 * object paths) at that bus name. The registration of these object paths
86 * should be done with the shared GDBus session bus. Note that due to the
87 * internal architecture of GDBus, method calls can be dispatched at any time
88 * (even if a main loop is not running). For this reason, you must ensure that
89 * any object paths that you wish to register are registered before #GApplication
90 * attempts to acquire the bus name of your application (which happens in
91 * g_application_register()). Unfortunately, this means that you cannot use
92 * g_application_get_is_remote() to decide if you want to register object paths.
94 * GApplication also implements the #GActionGroup and #GActionMap
95 * interfaces and lets you easily export actions by adding them with
96 * g_action_map_add_action(). When invoking an action by calling
97 * g_action_group_activate_action() on the application, it is always
98 * invoked in the primary instance. The actions are also exported on
99 * the session bus, and GIO provides the #GDBusActionGroup wrapper to
100 * conveniently access them remotely. GIO provides a #GDBusMenuModel wrapper
101 * for remote access to exported #GMenuModels.
103 * There is a number of different entry points into a GApplication:
105 * <listitem>via 'Activate' (i.e. just starting the application)</listitem>
106 * <listitem>via 'Open' (i.e. opening some files)</listitem>
107 * <listitem>by handling a command-line</listitem>
108 * <listitem>via activating an action</listitem>
110 * The #GApplication::startup signal lets you handle the application
111 * initialization for all of these in a single place.
113 * Regardless of which of these entry points is used to start the application,
114 * GApplication passes some <firstterm id="platform-data">platform
115 * data</firstterm> from the launching instance to the primary instance,
116 * in the form of a #GVariant dictionary mapping strings to variants.
117 * To use platform data, override the @before_emit or @after_emit virtual
118 * functions in your #GApplication subclass. When dealing with
119 * #GApplicationCommandLine objects, the platform data is directly
120 * available via g_application_command_line_get_cwd(),
121 * g_application_command_line_get_environ() and
122 * g_application_command_line_get_platform_data().
124 * As the name indicates, the platform data may vary depending on the
125 * operating system, but it always includes the current directory (key
126 * "cwd"), and optionally the environment (ie the set of environment
127 * variables and their values) of the calling process (key "environ").
128 * The environment is only added to the platform data if the
129 * %G_APPLICATION_SEND_ENVIRONMENT flag is set. #GApplication subclasses
130 * can add their own platform data by overriding the @add_platform_data
131 * virtual function. For instance, #GtkApplication adds startup notification
134 * To parse commandline arguments you may handle the
135 * #GApplication::command-line signal or override the local_command_line()
136 * vfunc, to parse them in either the primary instance or the local instance,
139 * <example id="gapplication-example-open"><title>Opening files with a GApplication</title>
141 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-open.c">
142 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
147 * <example id="gapplication-example-actions"><title>A GApplication with actions</title>
149 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-actions.c">
150 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
155 * <example id="gapplication-example-menu"><title>A GApplication with menus</title>
157 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-menu.c">
158 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
163 * <example id="gapplication-example-dbushooks"><title>Using extra D-Bus hooks with a GApplication</title>
165 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gapplication-example-dbushooks.c">
166 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
174 * @startup: invoked on the primary instance immediately after registration
175 * @shutdown: invoked only on the registered primary instance immediately
176 * after the main loop terminates
177 * @activate: invoked on the primary instance when an activation occurs
178 * @open: invoked on the primary instance when there are files to open
179 * @command_line: invoked on the primary instance when a command-line is
180 * not handled locally
181 * @local_command_line: invoked (locally) when the process has been invoked
182 * via commandline execution (as opposed to, say, D-Bus activation - which
183 * is not currently supported by GApplication). The virtual function has
184 * the chance to inspect (and possibly replace) the list of command line
185 * arguments. See g_application_run() for more information.
186 * @before_emit: invoked on the primary instance before 'activate', 'open',
187 * 'command-line' or any action invocation, gets the 'platform data' from
188 * the calling instance
189 * @after_emit: invoked on the primary instance after 'activate', 'open',
190 * 'command-line' or any action invocation, gets the 'platform data' from
191 * the calling instance
192 * @add_platform_data: invoked (locally) to add 'platform data' to be sent to
193 * the primary instance when activating, opening or invoking actions
194 * @quit_mainloop: Used to be invoked on the primary instance when the use
195 * count of the application drops to zero (and after any inactivity
196 * timeout, if requested). Not used anymore since 2.32
197 * @run_mainloop: Used to be invoked on the primary instance from
198 * g_application_run() if the use-count is non-zero. Since 2.32,
199 * GApplication is iterating the main context directly and is not
200 * using @run_mainloop anymore
201 * @dbus_register: invoked locally during registration, if the application is
202 * using its D-Bus backend. You can use this to export extra objects on the
203 * bus, that need to exist before the application tries to own the bus name.
204 * The function is passed the #GDBusConnection to to session bus, and the
205 * object path that #GApplication will use to export is D-Bus API.
206 * If this function returns %TRUE, registration will proceed; otherwise
207 * registration will abort. Since: 2.34
208 * @dbus_unregister: invoked locally during unregistration, if the application
209 * is using its D-Bus backend. Use this to undo anything done by the
210 * @dbus_register vfunc. Since: 2.34
212 * Virtual function table for #GApplication.
217 struct _GApplicationPrivate
219 GApplicationFlags flags;
222 GActionGroup *actions;
223 GMenuModel *app_menu;
226 guint inactivity_timeout_id;
227 guint inactivity_timeout;
230 guint is_registered : 1;
232 guint did_startup : 1;
233 guint did_shutdown : 1;
234 guint must_quit_now : 1;
236 GRemoteActionGroup *remote_actions;
237 GApplicationImpl *impl;
247 PROP_INACTIVITY_TIMEOUT,
262 static guint g_application_signals[NR_SIGNALS];
264 static void g_application_action_group_iface_init (GActionGroupInterface *);
265 static void g_application_action_map_iface_init (GActionMapInterface *);
266 G_DEFINE_TYPE_WITH_CODE (GApplication, g_application, G_TYPE_OBJECT,
267 G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, g_application_action_group_iface_init)
268 G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_MAP, g_application_action_map_iface_init))
270 /* GApplicationExportedActions {{{1 */
272 /* We create a subclass of GSimpleActionGroup that implements
273 * GRemoteActionGroup and deals with the platform data using
274 * GApplication's before/after_emit vfuncs. This is the action group we
277 * We could implement GRemoteActionGroup on GApplication directly, but
278 * this would be potentially extremely confusing to have exposed as part
279 * of the public API of GApplication. We certainly don't want anyone in
280 * the same process to be calling these APIs...
282 typedef GSimpleActionGroupClass GApplicationExportedActionsClass;
285 GSimpleActionGroup parent_instance;
286 GApplication *application;
287 } GApplicationExportedActions;
289 static GType g_application_exported_actions_get_type (void);
290 static void g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface);
291 G_DEFINE_TYPE_WITH_CODE (GApplicationExportedActions, g_application_exported_actions, G_TYPE_SIMPLE_ACTION_GROUP,
292 G_IMPLEMENT_INTERFACE (G_TYPE_REMOTE_ACTION_GROUP, g_application_exported_actions_iface_init))
295 g_application_exported_actions_activate_action_full (GRemoteActionGroup *remote,
296 const gchar *action_name,
298 GVariant *platform_data)
300 GApplicationExportedActions *exported = (GApplicationExportedActions *) remote;
302 G_APPLICATION_GET_CLASS (exported->application)
303 ->before_emit (exported->application, platform_data);
305 g_action_group_activate_action (G_ACTION_GROUP (exported), action_name, parameter);
307 G_APPLICATION_GET_CLASS (exported->application)
308 ->after_emit (exported->application, platform_data);
312 g_application_exported_actions_change_action_state_full (GRemoteActionGroup *remote,
313 const gchar *action_name,
315 GVariant *platform_data)
317 GApplicationExportedActions *exported = (GApplicationExportedActions *) remote;
319 G_APPLICATION_GET_CLASS (exported->application)
320 ->before_emit (exported->application, platform_data);
322 g_action_group_change_action_state (G_ACTION_GROUP (exported), action_name, value);
324 G_APPLICATION_GET_CLASS (exported->application)
325 ->after_emit (exported->application, platform_data);
329 g_application_exported_actions_init (GApplicationExportedActions *actions)
334 g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface)
336 iface->activate_action_full = g_application_exported_actions_activate_action_full;
337 iface->change_action_state_full = g_application_exported_actions_change_action_state_full;
341 g_application_exported_actions_class_init (GApplicationExportedActionsClass *class)
345 static GActionGroup *
346 g_application_exported_actions_new (GApplication *application)
348 GApplicationExportedActions *actions;
350 actions = g_object_new (g_application_exported_actions_get_type (), NULL);
351 actions->application = application;
353 return G_ACTION_GROUP (actions);
356 /* vfunc defaults {{{1 */
358 g_application_real_before_emit (GApplication *application,
359 GVariant *platform_data)
364 g_application_real_after_emit (GApplication *application,
365 GVariant *platform_data)
370 g_application_real_startup (GApplication *application)
372 application->priv->did_startup = TRUE;
376 g_application_real_shutdown (GApplication *application)
378 application->priv->did_shutdown = TRUE;
382 g_application_real_activate (GApplication *application)
384 if (!g_signal_has_handler_pending (application,
385 g_application_signals[SIGNAL_ACTIVATE],
387 G_APPLICATION_GET_CLASS (application)->activate == g_application_real_activate)
389 static gboolean warned;
394 g_warning ("Your application does not implement "
395 "g_application_activate() and has no handlers connected "
396 "to the 'activate' signal. It should do one of these.");
402 g_application_real_open (GApplication *application,
407 if (!g_signal_has_handler_pending (application,
408 g_application_signals[SIGNAL_OPEN],
410 G_APPLICATION_GET_CLASS (application)->open == g_application_real_open)
412 static gboolean warned;
417 g_warning ("Your application claims to support opening files "
418 "but does not implement g_application_open() and has no "
419 "handlers connected to the 'open' signal.");
425 g_application_real_command_line (GApplication *application,
426 GApplicationCommandLine *cmdline)
428 if (!g_signal_has_handler_pending (application,
429 g_application_signals[SIGNAL_COMMAND_LINE],
431 G_APPLICATION_GET_CLASS (application)->command_line == g_application_real_command_line)
433 static gboolean warned;
438 g_warning ("Your application claims to support custom command line "
439 "handling but does not implement g_application_command_line() "
440 "and has no handlers connected to the 'command-line' signal.");
449 g_application_real_local_command_line (GApplication *application,
453 if (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE)
458 GError *error = NULL;
461 if (!g_application_register (application, NULL, &error))
463 g_critical ("%s", error->message);
464 g_error_free (error);
469 n_args = g_strv_length (*arguments);
471 if (application->priv->flags & G_APPLICATION_IS_SERVICE)
473 if ((*exit_status = n_args > 1))
475 g_printerr ("GApplication service mode takes no arguments.\n");
476 application->priv->flags &= ~G_APPLICATION_IS_SERVICE;
484 g_application_activate (application);
490 if (~application->priv->flags & G_APPLICATION_HANDLES_OPEN)
492 g_critical ("This application can not open files.");
501 n_files = n_args - 1;
502 files = g_new (GFile *, n_files);
504 for (i = 0; i < n_files; i++)
505 files[i] = g_file_new_for_commandline_arg ((*arguments)[i + 1]);
507 g_application_open (application, files, n_files, "");
509 for (i = 0; i < n_files; i++)
510 g_object_unref (files[i]);
522 g_application_real_add_platform_data (GApplication *application,
523 GVariantBuilder *builder)
528 g_application_real_dbus_register (GApplication *application,
529 GDBusConnection *connection,
530 const gchar *object_path,
537 g_application_real_dbus_unregister (GApplication *application,
538 GDBusConnection *connection,
539 const gchar *object_path)
543 /* GObject implementation stuff {{{1 */
545 g_application_set_property (GObject *object,
550 GApplication *application = G_APPLICATION (object);
554 case PROP_APPLICATION_ID:
555 g_application_set_application_id (application,
556 g_value_get_string (value));
560 g_application_set_flags (application, g_value_get_flags (value));
563 case PROP_INACTIVITY_TIMEOUT:
564 g_application_set_inactivity_timeout (application,
565 g_value_get_uint (value));
568 case PROP_ACTION_GROUP:
569 g_clear_object (&application->priv->actions);
570 application->priv->actions = g_value_dup_object (value);
574 g_assert_not_reached ();
579 * g_application_set_action_group:
580 * @application: a #GApplication
581 * @action_group: (allow-none): a #GActionGroup, or %NULL
583 * This used to be how actions were associated with a #GApplication.
584 * Now there is #GActionMap for that.
588 * Deprecated:2.32:Use the #GActionMap interface instead. Never ever
589 * mix use of this API with use of #GActionMap on the same @application
590 * or things will go very badly wrong. This function is known to
591 * introduce buggy behaviour (ie: signals not emitted on changes to the
592 * action group), so you should really use #GActionMap instead.
595 g_application_set_action_group (GApplication *application,
596 GActionGroup *action_group)
598 g_return_if_fail (G_IS_APPLICATION (application));
599 g_return_if_fail (!application->priv->is_registered);
601 if (application->priv->actions != NULL)
602 g_object_unref (application->priv->actions);
604 application->priv->actions = action_group;
606 if (application->priv->actions != NULL)
607 g_object_ref (application->priv->actions);
611 g_application_get_property (GObject *object,
616 GApplication *application = G_APPLICATION (object);
620 case PROP_APPLICATION_ID:
621 g_value_set_string (value,
622 g_application_get_application_id (application));
626 g_value_set_flags (value,
627 g_application_get_flags (application));
630 case PROP_IS_REGISTERED:
631 g_value_set_boolean (value,
632 g_application_get_is_registered (application));
636 g_value_set_boolean (value,
637 g_application_get_is_remote (application));
640 case PROP_INACTIVITY_TIMEOUT:
641 g_value_set_uint (value,
642 g_application_get_inactivity_timeout (application));
646 g_assert_not_reached ();
651 g_application_constructed (GObject *object)
653 GApplication *application = G_APPLICATION (object);
655 if (g_application_get_default () == NULL)
656 g_application_set_default (application);
660 g_application_finalize (GObject *object)
662 GApplication *application = G_APPLICATION (object);
664 if (application->priv->impl)
665 g_application_impl_destroy (application->priv->impl);
666 g_free (application->priv->id);
668 if (g_application_get_default () == application)
669 g_application_set_default (NULL);
671 if (application->priv->actions)
672 g_object_unref (application->priv->actions);
674 G_OBJECT_CLASS (g_application_parent_class)
679 g_application_init (GApplication *application)
681 application->priv = G_TYPE_INSTANCE_GET_PRIVATE (application,
683 GApplicationPrivate);
685 application->priv->actions = g_application_exported_actions_new (application);
687 /* application->priv->actions is the one and only ref on the group, so when
688 * we dispose, the action group will die, disconnecting all signals.
690 g_signal_connect_swapped (application->priv->actions, "action-added",
691 G_CALLBACK (g_action_group_action_added), application);
692 g_signal_connect_swapped (application->priv->actions, "action-enabled-changed",
693 G_CALLBACK (g_action_group_action_enabled_changed), application);
694 g_signal_connect_swapped (application->priv->actions, "action-state-changed",
695 G_CALLBACK (g_action_group_action_state_changed), application);
696 g_signal_connect_swapped (application->priv->actions, "action-removed",
697 G_CALLBACK (g_action_group_action_removed), application);
701 g_application_class_init (GApplicationClass *class)
703 GObjectClass *object_class = G_OBJECT_CLASS (class);
705 object_class->constructed = g_application_constructed;
706 object_class->finalize = g_application_finalize;
707 object_class->get_property = g_application_get_property;
708 object_class->set_property = g_application_set_property;
710 class->before_emit = g_application_real_before_emit;
711 class->after_emit = g_application_real_after_emit;
712 class->startup = g_application_real_startup;
713 class->shutdown = g_application_real_shutdown;
714 class->activate = g_application_real_activate;
715 class->open = g_application_real_open;
716 class->command_line = g_application_real_command_line;
717 class->local_command_line = g_application_real_local_command_line;
718 class->add_platform_data = g_application_real_add_platform_data;
719 class->dbus_register = g_application_real_dbus_register;
720 class->dbus_unregister = g_application_real_dbus_unregister;
722 g_object_class_install_property (object_class, PROP_APPLICATION_ID,
723 g_param_spec_string ("application-id",
724 P_("Application identifier"),
725 P_("The unique identifier for the application"),
726 NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
727 G_PARAM_STATIC_STRINGS));
729 g_object_class_install_property (object_class, PROP_FLAGS,
730 g_param_spec_flags ("flags",
731 P_("Application flags"),
732 P_("Flags specifying the behaviour of the application"),
733 G_TYPE_APPLICATION_FLAGS, G_APPLICATION_FLAGS_NONE,
734 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
736 g_object_class_install_property (object_class, PROP_IS_REGISTERED,
737 g_param_spec_boolean ("is-registered",
739 P_("If g_application_register() has been called"),
740 FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
742 g_object_class_install_property (object_class, PROP_IS_REMOTE,
743 g_param_spec_boolean ("is-remote",
745 P_("If this application instance is remote"),
746 FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
748 g_object_class_install_property (object_class, PROP_INACTIVITY_TIMEOUT,
749 g_param_spec_uint ("inactivity-timeout",
750 P_("Inactivity timeout"),
751 P_("Time (ms) to stay alive after becoming idle"),
753 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
755 g_object_class_install_property (object_class, PROP_ACTION_GROUP,
756 g_param_spec_object ("action-group",
758 P_("The group of actions that the application exports"),
760 G_PARAM_DEPRECATED | G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
763 * GApplication::startup:
764 * @application: the application
766 * The ::startup signal is emitted on the primary instance immediately
767 * after registration. See g_application_register().
769 g_application_signals[SIGNAL_STARTUP] =
770 g_signal_new ("startup", G_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
771 G_STRUCT_OFFSET (GApplicationClass, startup),
772 NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
775 * GApplication::shutdown:
776 * @application: the application
778 * The ::shutdown signal is emitted only on the registered primary instance
779 * immediately after the main loop terminates.
781 g_application_signals[SIGNAL_SHUTDOWN] =
782 g_signal_new ("shutdown", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
783 G_STRUCT_OFFSET (GApplicationClass, shutdown),
784 NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
787 * GApplication::activate:
788 * @application: the application
790 * The ::activate signal is emitted on the primary instance when an
791 * activation occurs. See g_application_activate().
793 g_application_signals[SIGNAL_ACTIVATE] =
794 g_signal_new ("activate", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
795 G_STRUCT_OFFSET (GApplicationClass, activate),
796 NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
800 * GApplication::open:
801 * @application: the application
802 * @files: (array length=n_files) (element-type GFile): an array of #GFiles
803 * @n_files: the length of @files
804 * @hint: a hint provided by the calling instance
806 * The ::open signal is emitted on the primary instance when there are
807 * files to open. See g_application_open() for more information.
809 g_application_signals[SIGNAL_OPEN] =
810 g_signal_new ("open", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
811 G_STRUCT_OFFSET (GApplicationClass, open),
813 G_TYPE_NONE, 3, G_TYPE_POINTER, G_TYPE_INT, G_TYPE_STRING);
816 * GApplication::command-line:
817 * @application: the application
818 * @command_line: a #GApplicationCommandLine representing the
821 * The ::command-line signal is emitted on the primary instance when
822 * a commandline is not handled locally. See g_application_run() and
823 * the #GApplicationCommandLine documentation for more information.
825 * Returns: An integer that is set as the exit status for the calling
826 * process. See g_application_command_line_set_exit_status().
828 g_application_signals[SIGNAL_COMMAND_LINE] =
829 g_signal_new ("command-line", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST,
830 G_STRUCT_OFFSET (GApplicationClass, command_line),
831 g_signal_accumulator_first_wins, NULL,
833 G_TYPE_INT, 1, G_TYPE_APPLICATION_COMMAND_LINE);
835 g_type_class_add_private (class, sizeof (GApplicationPrivate));
839 get_platform_data (GApplication *application)
841 GVariantBuilder *builder;
844 builder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}"));
847 gchar *cwd = g_get_current_dir ();
848 g_variant_builder_add (builder, "{sv}", "cwd",
849 g_variant_new_bytestring (cwd));
853 if (application->priv->flags & G_APPLICATION_SEND_ENVIRONMENT)
858 envp = g_get_environ ();
859 array = g_variant_new_bytestring_array ((const gchar **) envp, -1);
862 g_variant_builder_add (builder, "{sv}", "environ", array);
865 G_APPLICATION_GET_CLASS (application)->
866 add_platform_data (application, builder);
868 result = g_variant_builder_end (builder);
869 g_variant_builder_unref (builder);
874 /* Application ID validity {{{1 */
877 * g_application_id_is_valid:
878 * @application_id: a potential application identifier
880 * Checks if @application_id is a valid application identifier.
882 * A valid ID is required for calls to g_application_new() and
883 * g_application_set_application_id().
885 * For convenience, the restrictions on application identifiers are
888 * <listitem>Application identifiers must contain only the ASCII characters "[A-Z][a-z][0-9]_-." and must not begin with a digit.</listitem>
889 * <listitem>Application identifiers must contain at least one '.' (period) character (and thus at least three elements).</listitem>
890 * <listitem>Application identifiers must not begin or end with a '.' (period) character.</listitem>
891 * <listitem>Application identifiers must not contain consecutive '.' (period) characters.</listitem>
892 * <listitem>Application identifiers must not exceed 255 characters.</listitem>
895 * Returns: %TRUE if @application_id is valid
898 g_application_id_is_valid (const gchar *application_id)
904 len = strlen (application_id);
909 if (!g_ascii_isalpha (application_id[0]))
912 if (application_id[len-1] == '.')
918 for (; *application_id; application_id++)
920 if (g_ascii_isalnum (*application_id) ||
921 (*application_id == '-') ||
922 (*application_id == '_'))
926 else if (allow_dot && *application_id == '.')
941 /* Public Constructor {{{1 */
944 * @application_id: (allow-none): the application id
945 * @flags: the application flags
947 * Creates a new #GApplication instance.
949 * This function calls g_type_init() for you.
951 * If non-%NULL, the application id must be valid. See
952 * g_application_id_is_valid().
954 * If no application ID is given then some features of #GApplication
955 * (most notably application uniqueness) will be disabled.
957 * Returns: a new #GApplication instance
960 g_application_new (const gchar *application_id,
961 GApplicationFlags flags)
963 g_return_val_if_fail (application_id == NULL || g_application_id_is_valid (application_id), NULL);
967 return g_object_new (G_TYPE_APPLICATION,
968 "application-id", application_id,
973 /* Simple get/set: application id, flags, inactivity timeout {{{1 */
975 * g_application_get_application_id:
976 * @application: a #GApplication
978 * Gets the unique identifier for @application.
980 * Returns: the identifier for @application, owned by @application
985 g_application_get_application_id (GApplication *application)
987 g_return_val_if_fail (G_IS_APPLICATION (application), NULL);
989 return application->priv->id;
993 * g_application_set_application_id:
994 * @application: a #GApplication
995 * @application_id: (allow-none): the identifier for @application
997 * Sets the unique identifier for @application.
999 * The application id can only be modified if @application has not yet
1002 * If non-%NULL, the application id must be valid. See
1003 * g_application_id_is_valid().
1008 g_application_set_application_id (GApplication *application,
1009 const gchar *application_id)
1011 g_return_if_fail (G_IS_APPLICATION (application));
1013 if (g_strcmp0 (application->priv->id, application_id) != 0)
1015 g_return_if_fail (application_id == NULL || g_application_id_is_valid (application_id));
1016 g_return_if_fail (!application->priv->is_registered);
1018 g_free (application->priv->id);
1019 application->priv->id = g_strdup (application_id);
1021 g_object_notify (G_OBJECT (application), "application-id");
1026 * g_application_get_flags:
1027 * @application: a #GApplication
1029 * Gets the flags for @application.
1031 * See #GApplicationFlags.
1033 * Returns: the flags for @application
1038 g_application_get_flags (GApplication *application)
1040 g_return_val_if_fail (G_IS_APPLICATION (application), 0);
1042 return application->priv->flags;
1046 * g_application_set_flags:
1047 * @application: a #GApplication
1048 * @flags: the flags for @application
1050 * Sets the flags for @application.
1052 * The flags can only be modified if @application has not yet been
1055 * See #GApplicationFlags.
1060 g_application_set_flags (GApplication *application,
1061 GApplicationFlags flags)
1063 g_return_if_fail (G_IS_APPLICATION (application));
1065 if (application->priv->flags != flags)
1067 g_return_if_fail (!application->priv->is_registered);
1069 application->priv->flags = flags;
1071 g_object_notify (G_OBJECT (application), "flags");
1076 * g_application_get_inactivity_timeout:
1077 * @application: a #GApplication
1079 * Gets the current inactivity timeout for the application.
1081 * This is the amount of time (in milliseconds) after the last call to
1082 * g_application_release() before the application stops running.
1084 * Returns: the timeout, in milliseconds
1089 g_application_get_inactivity_timeout (GApplication *application)
1091 g_return_val_if_fail (G_IS_APPLICATION (application), 0);
1093 return application->priv->inactivity_timeout;
1097 * g_application_set_inactivity_timeout:
1098 * @application: a #GApplication
1099 * @inactivity_timeout: the timeout, in milliseconds
1101 * Sets the current inactivity timeout for the application.
1103 * This is the amount of time (in milliseconds) after the last call to
1104 * g_application_release() before the application stops running.
1106 * This call has no side effects of its own. The value set here is only
1107 * used for next time g_application_release() drops the use count to
1108 * zero. Any timeouts currently in progress are not impacted.
1113 g_application_set_inactivity_timeout (GApplication *application,
1114 guint inactivity_timeout)
1116 g_return_if_fail (G_IS_APPLICATION (application));
1118 if (application->priv->inactivity_timeout != inactivity_timeout)
1120 application->priv->inactivity_timeout = inactivity_timeout;
1122 g_object_notify (G_OBJECT (application), "inactivity-timeout");
1125 /* Read-only property getters (is registered, is remote, dbus stuff) {{{1 */
1127 * g_application_get_is_registered:
1128 * @application: a #GApplication
1130 * Checks if @application is registered.
1132 * An application is registered if g_application_register() has been
1133 * successfully called.
1135 * Returns: %TRUE if @application is registered
1140 g_application_get_is_registered (GApplication *application)
1142 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1144 return application->priv->is_registered;
1148 * g_application_get_is_remote:
1149 * @application: a #GApplication
1151 * Checks if @application is remote.
1153 * If @application is remote then it means that another instance of
1154 * application already exists (the 'primary' instance). Calls to
1155 * perform actions on @application will result in the actions being
1156 * performed by the primary instance.
1158 * The value of this property cannot be accessed before
1159 * g_application_register() has been called. See
1160 * g_application_get_is_registered().
1162 * Returns: %TRUE if @application is remote
1167 g_application_get_is_remote (GApplication *application)
1169 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1170 g_return_val_if_fail (application->priv->is_registered, FALSE);
1172 return application->priv->is_remote;
1176 * g_application_get_dbus_connection:
1177 * @application: a #GApplication
1179 * Gets the #GDBusConnection being used by the application, or %NULL.
1181 * If #GApplication is using its D-Bus backend then this function will
1182 * return the #GDBusConnection being used for uniqueness and
1183 * communication with the desktop environment and other instances of the
1186 * If #GApplication is not using D-Bus then this function will return
1187 * %NULL. This includes the situation where the D-Bus backend would
1188 * normally be in use but we were unable to connect to the bus.
1190 * This function must not be called before the application has been
1191 * registered. See g_application_get_is_registered().
1193 * Returns: (transfer none): a #GDBusConnection, or %NULL
1198 g_application_get_dbus_connection (GApplication *application)
1200 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1201 g_return_val_if_fail (application->priv->is_registered, FALSE);
1203 return g_application_impl_get_dbus_connection (application->priv->impl);
1207 * g_application_get_dbus_object_path:
1208 * @application: a #GApplication
1210 * Gets the D-Bus object path being used by the application, or %NULL.
1212 * If #GApplication is using its D-Bus backend then this function will
1213 * return the D-Bus object path that #GApplication is using. If the
1214 * application is the primary instance then there is an object published
1215 * at this path. If the application is not the primary instance then
1216 * the result of this function is undefined.
1218 * If #GApplication is not using D-Bus then this function will return
1219 * %NULL. This includes the situation where the D-Bus backend would
1220 * normally be in use but we were unable to connect to the bus.
1222 * This function must not be called before the application has been
1223 * registered. See g_application_get_is_registered().
1225 * Returns: the object path, or %NULL
1230 g_application_get_dbus_object_path (GApplication *application)
1232 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1233 g_return_val_if_fail (application->priv->is_registered, FALSE);
1235 return g_application_impl_get_dbus_object_path (application->priv->impl);
1240 * g_application_register:
1241 * @application: a #GApplication
1242 * @cancellable: (allow-none): a #GCancellable, or %NULL
1243 * @error: a pointer to a NULL #GError, or %NULL
1245 * Attempts registration of the application.
1247 * This is the point at which the application discovers if it is the
1248 * primary instance or merely acting as a remote for an already-existing
1249 * primary instance. This is implemented by attempting to acquire the
1250 * application identifier as a unique bus name on the session bus using
1253 * If there is no application ID or if %G_APPLICATION_NON_UNIQUE was
1254 * given, then this process will always become the primary instance.
1256 * Due to the internal architecture of GDBus, method calls can be
1257 * dispatched at any time (even if a main loop is not running). For
1258 * this reason, you must ensure that any object paths that you wish to
1259 * register are registered before calling this function.
1261 * If the application has already been registered then %TRUE is
1262 * returned with no work performed.
1264 * The #GApplication::startup signal is emitted if registration succeeds
1265 * and @application is the primary instance (including the non-unique
1268 * In the event of an error (such as @cancellable being cancelled, or a
1269 * failure to connect to the session bus), %FALSE is returned and @error
1270 * is set appropriately.
1272 * Note: the return value of this function is not an indicator that this
1273 * instance is or is not the primary instance of the application. See
1274 * g_application_get_is_remote() for that.
1276 * Returns: %TRUE if registration succeeded
1281 g_application_register (GApplication *application,
1282 GCancellable *cancellable,
1285 g_return_val_if_fail (G_IS_APPLICATION (application), FALSE);
1287 if (!application->priv->is_registered)
1289 if (application->priv->id == NULL)
1290 application->priv->flags |= G_APPLICATION_NON_UNIQUE;
1292 application->priv->impl =
1293 g_application_impl_register (application, application->priv->id,
1294 application->priv->flags,
1295 application->priv->actions,
1296 &application->priv->remote_actions,
1297 cancellable, error);
1299 if (application->priv->impl == NULL)
1302 application->priv->is_remote = application->priv->remote_actions != NULL;
1303 application->priv->is_registered = TRUE;
1305 g_object_notify (G_OBJECT (application), "is-registered");
1307 if (!application->priv->is_remote)
1309 g_signal_emit (application, g_application_signals[SIGNAL_STARTUP], 0);
1311 if (!application->priv->did_startup)
1312 g_critical ("GApplication subclass '%s' failed to chain up on"
1313 " ::startup (from start of override function)",
1314 G_OBJECT_TYPE_NAME (application));
1321 /* Hold/release {{{1 */
1323 * g_application_hold:
1324 * @application: a #GApplication
1326 * Increases the use count of @application.
1328 * Use this function to indicate that the application has a reason to
1329 * continue to run. For example, g_application_hold() is called by GTK+
1330 * when a toplevel window is on the screen.
1332 * To cancel the hold, call g_application_release().
1335 g_application_hold (GApplication *application)
1337 if (application->priv->inactivity_timeout_id)
1339 g_source_remove (application->priv->inactivity_timeout_id);
1340 application->priv->inactivity_timeout_id = 0;
1343 application->priv->use_count++;
1347 inactivity_timeout_expired (gpointer data)
1349 GApplication *application = G_APPLICATION (data);
1351 application->priv->inactivity_timeout_id = 0;
1353 return G_SOURCE_REMOVE;
1358 * g_application_release:
1359 * @application: a #GApplication
1361 * Decrease the use count of @application.
1363 * When the use count reaches zero, the application will stop running.
1365 * Never call this function except to cancel the effect of a previous
1366 * call to g_application_hold().
1369 g_application_release (GApplication *application)
1371 application->priv->use_count--;
1373 if (application->priv->use_count == 0 && application->priv->inactivity_timeout)
1374 application->priv->inactivity_timeout_id = g_timeout_add (application->priv->inactivity_timeout,
1375 inactivity_timeout_expired, application);
1378 /* Activate, Open {{{1 */
1380 * g_application_activate:
1381 * @application: a #GApplication
1383 * Activates the application.
1385 * In essence, this results in the #GApplication::activate signal being
1386 * emitted in the primary instance.
1388 * The application must be registered before calling this function.
1393 g_application_activate (GApplication *application)
1395 g_return_if_fail (G_IS_APPLICATION (application));
1396 g_return_if_fail (application->priv->is_registered);
1398 if (application->priv->is_remote)
1399 g_application_impl_activate (application->priv->impl,
1400 get_platform_data (application));
1403 g_signal_emit (application, g_application_signals[SIGNAL_ACTIVATE], 0);
1407 * g_application_open:
1408 * @application: a #GApplication
1409 * @files: (array length=n_files): an array of #GFiles to open
1410 * @n_files: the length of the @files array
1411 * @hint: a hint (or ""), but never %NULL
1413 * Opens the given files.
1415 * In essence, this results in the #GApplication::open signal being emitted
1416 * in the primary instance.
1418 * @n_files must be greater than zero.
1420 * @hint is simply passed through to the ::open signal. It is
1421 * intended to be used by applications that have multiple modes for
1422 * opening files (eg: "view" vs "edit", etc). Unless you have a need
1423 * for this functionality, you should use "".
1425 * The application must be registered before calling this function
1426 * and it must have the %G_APPLICATION_HANDLES_OPEN flag set.
1431 g_application_open (GApplication *application,
1436 g_return_if_fail (G_IS_APPLICATION (application));
1437 g_return_if_fail (application->priv->flags &
1438 G_APPLICATION_HANDLES_OPEN);
1439 g_return_if_fail (application->priv->is_registered);
1441 if (application->priv->is_remote)
1442 g_application_impl_open (application->priv->impl,
1443 files, n_files, hint,
1444 get_platform_data (application));
1447 g_signal_emit (application, g_application_signals[SIGNAL_OPEN],
1448 0, files, n_files, hint);
1453 * g_application_run:
1454 * @application: a #GApplication
1455 * @argc: the argc from main() (or 0 if @argv is %NULL)
1456 * @argv: (array length=argc) (allow-none): the argv from main(), or %NULL
1458 * Runs the application.
1460 * This function is intended to be run from main() and its return value
1461 * is intended to be returned by main(). Although you are expected to pass
1462 * the @argc, @argv parameters from main() to this function, it is possible
1463 * to pass %NULL if @argv is not available or commandline handling is not
1466 * First, the local_command_line() virtual function is invoked.
1467 * This function always runs on the local instance. It gets passed a pointer
1468 * to a %NULL-terminated copy of @argv and is expected to remove the arguments
1469 * that it handled (shifting up remaining arguments). See
1470 * <xref linkend="gapplication-example-cmdline2"/> for an example of
1471 * parsing @argv manually. Alternatively, you may use the #GOptionContext API,
1472 * after setting <literal>argc = g_strv_length (argv);</literal>.
1474 * The last argument to local_command_line() is a pointer to the @status
1475 * variable which can used to set the exit status that is returned from
1476 * g_application_run().
1478 * If local_command_line() returns %TRUE, the command line is expected
1479 * to be completely handled, including possibly registering as the primary
1480 * instance, calling g_application_activate() or g_application_open(), etc.
1482 * If local_command_line() returns %FALSE then the application is registered
1483 * and the #GApplication::command-line signal is emitted in the primary
1484 * instance (which may or may not be this instance). The signal handler
1485 * gets passed a #GApplicationCommandLine object that (among other things)
1486 * contains the remaining commandline arguments that have not been handled
1487 * by local_command_line().
1489 * If the application has the %G_APPLICATION_HANDLES_COMMAND_LINE
1490 * flag set then the default implementation of local_command_line()
1491 * always returns %FALSE immediately, resulting in the commandline
1492 * always being handled in the primary instance.
1494 * Otherwise, the default implementation of local_command_line() tries
1495 * to do a couple of things that are probably reasonable for most
1496 * applications. First, g_application_register() is called to attempt
1497 * to register the application. If that works, then the command line
1498 * arguments are inspected. If no commandline arguments are given, then
1499 * g_application_activate() is called. If commandline arguments are
1500 * given and the %G_APPLICATION_HANDLES_OPEN flag is set then they
1501 * are assumed to be filenames and g_application_open() is called.
1503 * If you need to handle commandline arguments that are not filenames,
1504 * and you don't mind commandline handling to happen in the primary
1505 * instance, you should set %G_APPLICATION_HANDLES_COMMAND_LINE and
1506 * process the commandline arguments in your #GApplication::command-line
1507 * signal handler, either manually or using the #GOptionContext API.
1509 * If you are interested in doing more complicated local handling of the
1510 * commandline then you should implement your own #GApplication subclass
1511 * and override local_command_line(). In this case, you most likely want
1512 * to return %TRUE from your local_command_line() implementation to
1513 * suppress the default handling. See
1514 * <xref linkend="gapplication-example-cmdline2"/> for an example.
1516 * If, after the above is done, the use count of the application is zero
1517 * then the exit status is returned immediately. If the use count is
1518 * non-zero then the default main context is iterated until the use count
1519 * falls to zero, at which point 0 is returned.
1521 * If the %G_APPLICATION_IS_SERVICE flag is set, then the exiting at
1522 * use count of zero is delayed for a while (ie: the instance stays
1523 * around to provide its <emphasis>service</emphasis> to others).
1525 * Returns: the exit status
1530 g_application_run (GApplication *application,
1538 g_return_val_if_fail (G_IS_APPLICATION (application), 1);
1539 g_return_val_if_fail (argc == 0 || argv != NULL, 1);
1540 g_return_val_if_fail (!application->priv->must_quit_now, 1);
1542 arguments = g_new (gchar *, argc + 1);
1543 for (i = 0; i < argc; i++)
1544 arguments[i] = g_strdup (argv[i]);
1545 arguments[i] = NULL;
1547 if (g_get_prgname () == NULL && argc > 0)
1551 prgname = g_path_get_basename (argv[0]);
1552 g_set_prgname (prgname);
1556 if (!G_APPLICATION_GET_CLASS (application)
1557 ->local_command_line (application, &arguments, &status))
1559 GError *error = NULL;
1561 if (!g_application_register (application, NULL, &error))
1563 g_printerr ("%s", error->message);
1564 g_error_free (error);
1568 if (application->priv->is_remote)
1570 GVariant *platform_data;
1572 platform_data = get_platform_data (application);
1573 status = g_application_impl_command_line (application->priv->impl,
1574 arguments, platform_data);
1578 GApplicationCommandLine *cmdline;
1581 v = g_variant_new_bytestring_array ((const gchar **) arguments, -1);
1582 cmdline = g_object_new (G_TYPE_APPLICATION_COMMAND_LINE,
1583 "arguments", v, NULL);
1584 g_signal_emit (application,
1585 g_application_signals[SIGNAL_COMMAND_LINE],
1586 0, cmdline, &status);
1587 g_object_unref (cmdline);
1591 g_strfreev (arguments);
1593 if (application->priv->flags & G_APPLICATION_IS_SERVICE &&
1594 application->priv->is_registered &&
1595 !application->priv->use_count &&
1596 !application->priv->inactivity_timeout_id)
1598 application->priv->inactivity_timeout_id =
1599 g_timeout_add (10000, inactivity_timeout_expired, application);
1602 while (application->priv->use_count || application->priv->inactivity_timeout_id)
1604 if (application->priv->must_quit_now)
1607 g_main_context_iteration (NULL, TRUE);
1611 if (!application->priv->is_remote)
1613 g_signal_emit (application, g_application_signals[SIGNAL_SHUTDOWN], 0);
1615 if (!application->priv->did_shutdown)
1616 g_critical ("GApplication subclass '%s' failed to chain up on"
1617 " ::shutdown (from end of override function)",
1618 G_OBJECT_TYPE_NAME (application));
1621 if (application->priv->impl)
1622 g_application_impl_flush (application->priv->impl);
1630 g_application_list_actions (GActionGroup *action_group)
1632 GApplication *application = G_APPLICATION (action_group);
1634 g_return_val_if_fail (application->priv->is_registered, NULL);
1636 if (application->priv->remote_actions != NULL)
1637 return g_action_group_list_actions (G_ACTION_GROUP (application->priv->remote_actions));
1639 else if (application->priv->actions != NULL)
1640 return g_action_group_list_actions (application->priv->actions);
1643 /* empty string array */
1644 return g_new0 (gchar *, 1);
1648 g_application_query_action (GActionGroup *group,
1649 const gchar *action_name,
1651 const GVariantType **parameter_type,
1652 const GVariantType **state_type,
1653 GVariant **state_hint,
1656 GApplication *application = G_APPLICATION (group);
1658 g_return_val_if_fail (application->priv->is_registered, FALSE);
1660 if (application->priv->remote_actions != NULL)
1661 return g_action_group_query_action (G_ACTION_GROUP (application->priv->remote_actions),
1669 if (application->priv->actions != NULL)
1670 return g_action_group_query_action (application->priv->actions,
1682 g_application_change_action_state (GActionGroup *action_group,
1683 const gchar *action_name,
1686 GApplication *application = G_APPLICATION (action_group);
1688 g_return_if_fail (application->priv->is_remote ||
1689 application->priv->actions != NULL);
1690 g_return_if_fail (application->priv->is_registered);
1692 if (application->priv->remote_actions)
1693 g_remote_action_group_change_action_state_full (application->priv->remote_actions,
1694 action_name, value, get_platform_data (application));
1697 g_action_group_change_action_state (application->priv->actions, action_name, value);
1701 g_application_activate_action (GActionGroup *action_group,
1702 const gchar *action_name,
1703 GVariant *parameter)
1705 GApplication *application = G_APPLICATION (action_group);
1707 g_return_if_fail (application->priv->is_remote ||
1708 application->priv->actions != NULL);
1709 g_return_if_fail (application->priv->is_registered);
1711 if (application->priv->remote_actions)
1712 g_remote_action_group_activate_action_full (application->priv->remote_actions,
1713 action_name, parameter, get_platform_data (application));
1716 g_action_group_activate_action (application->priv->actions, action_name, parameter);
1720 g_application_lookup_action (GActionMap *action_map,
1721 const gchar *action_name)
1723 GApplication *application = G_APPLICATION (action_map);
1725 g_return_val_if_fail (G_IS_SIMPLE_ACTION_GROUP (application->priv->actions), NULL);
1727 return g_simple_action_group_lookup (G_SIMPLE_ACTION_GROUP (application->priv->actions), action_name);
1731 g_application_add_action (GActionMap *action_map,
1734 GApplication *application = G_APPLICATION (action_map);
1736 g_return_if_fail (G_IS_SIMPLE_ACTION_GROUP (application->priv->actions));
1738 g_simple_action_group_insert (G_SIMPLE_ACTION_GROUP (application->priv->actions), action);
1742 g_application_remove_action (GActionMap *action_map,
1743 const gchar *action_name)
1745 GApplication *application = G_APPLICATION (action_map);
1747 g_return_if_fail (G_IS_SIMPLE_ACTION_GROUP (application->priv->actions));
1749 g_simple_action_group_remove (G_SIMPLE_ACTION_GROUP (application->priv->actions), action_name);
1753 g_application_action_group_iface_init (GActionGroupInterface *iface)
1755 iface->list_actions = g_application_list_actions;
1756 iface->query_action = g_application_query_action;
1757 iface->change_action_state = g_application_change_action_state;
1758 iface->activate_action = g_application_activate_action;
1762 g_application_action_map_iface_init (GActionMapInterface *iface)
1764 iface->lookup_action = g_application_lookup_action;
1765 iface->add_action = g_application_add_action;
1766 iface->remove_action = g_application_remove_action;
1769 /* Default Application {{{1 */
1771 static GApplication *default_app;
1774 * g_application_get_default:
1776 * Returns the default #GApplication instance for this process.
1778 * Normally there is only one #GApplication per process and it becomes
1779 * the default when it is created. You can exercise more control over
1780 * this by using g_application_set_default().
1782 * If there is no default application then %NULL is returned.
1784 * Returns: (transfer none): the default application for this process, or %NULL
1789 g_application_get_default (void)
1795 * g_application_set_default:
1796 * @application: (allow-none): the application to set as default, or %NULL
1798 * Sets or unsets the default application for the process, as returned
1799 * by g_application_get_default().
1801 * This function does not take its own reference on @application. If
1802 * @application is destroyed then the default application will revert
1808 g_application_set_default (GApplication *application)
1810 default_app = application;
1814 * g_application_quit:
1815 * @application: a #GApplication
1817 * Immediately quits the application.
1819 * Upon return to the mainloop, g_application_run() will return,
1820 * calling only the 'shutdown' function before doing so.
1822 * The hold count is ignored.
1824 * The result of calling g_application_run() again after it returns is
1830 g_application_quit (GApplication *application)
1832 g_return_if_fail (G_IS_APPLICATION (application));
1834 application->priv->must_quit_now = TRUE;
1838 /* vim:set foldmethod=marker: */