X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gio%2Fgapplication.c;h=a918ea2bee8f966c290e92f7afccc425a2c979cf;hb=a3d86afa81ff34ce797a3928fd619ead219a37af;hp=7fa406f3dfae03aa006c4b8c6bdf51950ad1818c;hpb=15b1c1bf4f782189cf881a44b9116460a066c5da;p=platform%2Fupstream%2Fglib.git diff --git a/gio/gapplication.c b/gio/gapplication.c index 7fa406f..a918ea2 100644 --- a/gio/gapplication.c +++ b/gio/gapplication.c @@ -12,9 +12,7 @@ * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General - * Public License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place, Suite 330, - * Boston, MA 02111-1307, USA. + * Public License along with this library; if not, see . * * Authors: Ryan Lortie */ @@ -25,9 +23,16 @@ #include "gapplication.h" #include "gapplicationcommandline.h" +#include "gsimpleactiongroup.h" +#include "gremoteactiongroup.h" #include "gapplicationimpl.h" #include "gactiongroup.h" +#include "gactionmap.h" +#include "gmenumodel.h" #include "gsettings.h" +#include "gnotification-private.h" +#include "gnotificationbackend.h" +#include "gdbusutils.h" #include "gioenumtypes.h" #include "gioenums.h" @@ -41,73 +46,95 @@ * SECTION:gapplication * @title: GApplication * @short_description: Core application class + * @include: gio/gio.h * - * A #GApplication is the foundation of an application, unique for a - * given application identifier. The GApplication class wraps some + * A #GApplication is the foundation of an application. It wraps some * low-level platform-specific services and is intended to act as the * foundation for higher-level application classes such as * #GtkApplication or #MxApplication. In general, you should not use * this class outside of a higher level framework. * - * One of the core features that GApplication provides is process - * uniqueness, in the context of a "session". The session concept is - * platform-dependent, but corresponds roughly to a graphical desktop - * login. When your application is launched again, its arguments - * are passed through platform communication to the already running - * program. The already running instance of the program is called the - * primary instance. - * - * Before using GApplication, you must choose an "application identifier". - * The expected form of an application identifier is very close to that of - * of a DBus bus name. + * GApplication provides convenient life cycle management by maintaining + * a "use count" for the primary application instance. The use count can + * be changed using g_application_hold() and g_application_release(). If + * it drops to zero, the application exits. Higher-level classes such as + * #GtkApplication employ the use count to ensure that the application + * stays alive as long as it has any opened windows. + * + * Another feature that GApplication (optionally) provides is process + * uniqueness. Applications can make use of this functionality by + * providing a unique application ID. If given, only one application + * with this ID can be running at a time per session. The session + * concept is platform-dependent, but corresponds roughly to a graphical + * desktop login. When your application is launched again, its + * arguments are passed through platform communication to the already + * running program. The already running instance of the program is + * called the "primary instance"; for non-unique applications this is + * the always the current instance. On Linux, the D-Bus session bus + * is used for communication. + * + * The use of #GApplication differs from some other commonly-used + * uniqueness libraries (such as libunique) in important ways. The + * application is not expected to manually register itself and check + * if it is the primary instance. Instead, the main() function of a + * #GApplication should do very little more than instantiating the + * application instance, possibly connecting signal handlers, then + * calling g_application_run(). All checks for uniqueness are done + * internally. If the application is the primary instance then the + * startup signal is emitted and the mainloop runs. If the application + * is not the primary instance then a signal is sent to the primary + * instance and g_application_run() promptly returns. See the code + * examples below. + * + * If used, the expected form of an application identifier is very close + * to that of of a + * [DBus bus name](http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-interface). * Examples include: "com.example.MyApp", "org.example.internal-apps.Calculator". - * For details on valid application identifiers, see - * g_application_id_is_valid(). + * For details on valid application identifiers, see g_application_id_is_valid(). * - * The application identifier is claimed by the application as a - * well-known bus name on the user's session bus. This means that the - * uniqueness of your application is scoped to the current session. It - * also means that your application may provide additional services - * (through registration of other object paths) at that bus name. - * - * The registration of these object paths should be done with the shared - * GDBus session bus. Note that due to the internal architecture of - * GDBus, method calls can be dispatched at any time (even if a main - * loop is not running). For this reason, you must ensure that any - * object paths that you wish to register are registered before - * #GApplication attempts to acquire the bus name of your application - * (which happens in g_application_register()). Unfortunately, this - * means that you cannot use g_application_get_is_remote() to decide if - * you want to register object paths. + * On Linux, the application identifier is claimed as a well-known bus name + * on the user's session bus. This means that the uniqueness of your + * application is scoped to the current session. It also means that your + * application may provide additional services (through registration of other + * object paths) at that bus name. The registration of these object paths + * should be done with the shared GDBus session bus. Note that due to the + * internal architecture of GDBus, method calls can be dispatched at any time + * (even if a main loop is not running). For this reason, you must ensure that + * any object paths that you wish to register are registered before #GApplication + * attempts to acquire the bus name of your application (which happens in + * g_application_register()). Unfortunately, this means that you cannot use + * g_application_get_is_remote() to decide if you want to register object paths. + * + * GApplication also implements the #GActionGroup and #GActionMap + * interfaces and lets you easily export actions by adding them with + * g_action_map_add_action(). When invoking an action by calling + * g_action_group_activate_action() on the application, it is always + * invoked in the primary instance. The actions are also exported on + * the session bus, and GIO provides the #GDBusActionGroup wrapper to + * conveniently access them remotely. GIO provides a #GDBusMenuModel wrapper + * for remote access to exported #GMenuModels. + * + * There is a number of different entry points into a GApplication: + * + * - via 'Activate' (i.e. just starting the application) + * + * - via 'Open' (i.e. opening some files) + * + * - by handling a command-line + * + * - via activating an action * - * GApplication provides convenient life cycle management by maintaining - * a use count for the primary application instance. - * The use count can be changed using g_application_hold() and - * g_application_release(). If it drops to zero, the application exits. - * - * GApplication also implements the #GActionGroup interface and lets you - * easily export actions by adding them with g_application_set_action_group(). - * When invoking an action by calling g_action_group_activate_action() on - * the application, it is always invoked in the primary instance. - * - * There is a number of different entry points into a #GApplication: - * - * via 'Activate' (i.e. just starting the application) - * via 'Open' (i.e. opening some files) - * by handling a command-line - * via activating an action - * * The #GApplication::startup signal lets you handle the application * initialization for all of these in a single place. * - * Regardless of which of these entry points is used to start the application, - * GApplication passes some platform - * data from the launching instance to the primary instance, - * in the form of a #GVariant dictionary mapping strings to variants. - * To use platform data, override the @before_emit or @after_emit virtual - * functions in your #GApplication subclass. When dealing with - * #GApplicationCommandline objects, the platform data is directly - * available via g_application_command_line_get_cwd(), + * Regardless of which of these entry points is used to start the + * application, GApplication passes some "platform data from the + * launching instance to the primary instance, in the form of a + * #GVariant dictionary mapping strings to variants. To use platform + * data, override the @before_emit or @after_emit virtual functions + * in your #GApplication subclass. When dealing with + * #GApplicationCommandLine objects, the platform data is + * directly available via g_application_command_line_get_cwd(), * g_application_command_line_get_environ() and * g_application_command_line_get_platform_data(). * @@ -116,7 +143,7 @@ * "cwd"), and optionally the environment (ie the set of environment * variables and their values) of the calling process (key "environ"). * The environment is only added to the platform data if the - * #G_APPLICATION_SEND_ENVIONMENT flag is set. GApplication subclasses + * %G_APPLICATION_SEND_ENVIRONMENT flag is set. #GApplication subclasses * can add their own platform data by overriding the @add_platform_data * virtual function. For instance, #GtkApplication adds startup notification * data in this way. @@ -126,40 +153,95 @@ * vfunc, to parse them in either the primary instance or the local instance, * respectively. * - * Opening files with a GApplication - * - * - * FIXME: MISSING XINCLUDE CONTENT - * - * - * - * - * A GApplication with actions - * - * - * FIXME: MISSING XINCLUDE CONTENT - * - * - * + * For an example of opening files with a GApplication, see + * [gapplication-example-open.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-open.c). + * + * For an example of using actions with GApplication, see + * [gapplication-example-actions.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-actions.c). + * + * For an example of using extra D-Bus hooks with GApplication, see + * [gapplication-example-dbushooks.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-dbushooks.c). + */ + +/** + * GApplicationClass: + * @startup: invoked on the primary instance immediately after registration + * @shutdown: invoked only on the registered primary instance immediately + * after the main loop terminates + * @activate: invoked on the primary instance when an activation occurs + * @open: invoked on the primary instance when there are files to open + * @command_line: invoked on the primary instance when a command-line is + * not handled locally + * @local_command_line: invoked (locally) when the process has been invoked + * via commandline execution (as opposed to, say, D-Bus activation - which + * is not currently supported by GApplication). The virtual function has + * the chance to inspect (and possibly replace) the list of command line + * arguments. See g_application_run() for more information. + * @before_emit: invoked on the primary instance before 'activate', 'open', + * 'command-line' or any action invocation, gets the 'platform data' from + * the calling instance + * @after_emit: invoked on the primary instance after 'activate', 'open', + * 'command-line' or any action invocation, gets the 'platform data' from + * the calling instance + * @add_platform_data: invoked (locally) to add 'platform data' to be sent to + * the primary instance when activating, opening or invoking actions + * @quit_mainloop: Used to be invoked on the primary instance when the use + * count of the application drops to zero (and after any inactivity + * timeout, if requested). Not used anymore since 2.32 + * @run_mainloop: Used to be invoked on the primary instance from + * g_application_run() if the use-count is non-zero. Since 2.32, + * GApplication is iterating the main context directly and is not + * using @run_mainloop anymore + * @dbus_register: invoked locally during registration, if the application is + * using its D-Bus backend. You can use this to export extra objects on the + * bus, that need to exist before the application tries to own the bus name. + * The function is passed the #GDBusConnection to to session bus, and the + * object path that #GApplication will use to export is D-Bus API. + * If this function returns %TRUE, registration will proceed; otherwise + * registration will abort. Since: 2.34 + * @dbus_unregister: invoked locally during unregistration, if the application + * is using its D-Bus backend. Use this to undo anything done by the + * @dbus_register vfunc. Since: 2.34 + * + * Virtual function table for #GApplication. + * + * Since: 2.28 */ struct _GApplicationPrivate { GApplicationFlags flags; gchar *id; + gchar *resource_path; GActionGroup *actions; - GMainLoop *mainloop; + GMenuModel *app_menu; + GMenuModel *menubar; guint inactivity_timeout_id; guint inactivity_timeout; guint use_count; + guint busy_count; guint is_registered : 1; guint is_remote : 1; + guint did_startup : 1; + guint did_shutdown : 1; + guint must_quit_now : 1; + + GRemoteActionGroup *remote_actions; + GApplicationImpl *impl; + + GNotificationBackend *notifications; - GHashTable *remote_actions; /* string -> RemoteActionInfo */ - GApplicationImpl *impl; + /* GOptionContext support */ + GOptionGroup *main_options; + GSList *option_groups; + GHashTable *packed_options; + gboolean options_parsed; + + /* Allocated option strings, from g_application_add_main_option() */ + GSList *option_strings; }; enum @@ -167,6 +249,7 @@ enum PROP_NONE, PROP_APPLICATION_ID, PROP_FLAGS, + PROP_RESOURCE_BASE_PATH, PROP_IS_REGISTERED, PROP_IS_REMOTE, PROP_INACTIVITY_TIMEOUT, @@ -181,15 +264,515 @@ enum SIGNAL_OPEN, SIGNAL_ACTION, SIGNAL_COMMAND_LINE, + SIGNAL_HANDLE_LOCAL_OPTIONS, NR_SIGNALS }; static guint g_application_signals[NR_SIGNALS]; static void g_application_action_group_iface_init (GActionGroupInterface *); +static void g_application_action_map_iface_init (GActionMapInterface *); G_DEFINE_TYPE_WITH_CODE (GApplication, g_application, G_TYPE_OBJECT, - G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, - g_application_action_group_iface_init)) + G_ADD_PRIVATE (GApplication) + G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, g_application_action_group_iface_init) + G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_MAP, g_application_action_map_iface_init)) + +/* GApplicationExportedActions {{{1 */ + +/* We create a subclass of GSimpleActionGroup that implements + * GRemoteActionGroup and deals with the platform data using + * GApplication's before/after_emit vfuncs. This is the action group we + * will be exporting. + * + * We could implement GRemoteActionGroup on GApplication directly, but + * this would be potentially extremely confusing to have exposed as part + * of the public API of GApplication. We certainly don't want anyone in + * the same process to be calling these APIs... + */ +typedef GSimpleActionGroupClass GApplicationExportedActionsClass; +typedef struct +{ + GSimpleActionGroup parent_instance; + GApplication *application; +} GApplicationExportedActions; + +static GType g_application_exported_actions_get_type (void); +static void g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface); +G_DEFINE_TYPE_WITH_CODE (GApplicationExportedActions, g_application_exported_actions, G_TYPE_SIMPLE_ACTION_GROUP, + G_IMPLEMENT_INTERFACE (G_TYPE_REMOTE_ACTION_GROUP, g_application_exported_actions_iface_init)) + +static void +g_application_exported_actions_activate_action_full (GRemoteActionGroup *remote, + const gchar *action_name, + GVariant *parameter, + GVariant *platform_data) +{ + GApplicationExportedActions *exported = (GApplicationExportedActions *) remote; + + G_APPLICATION_GET_CLASS (exported->application) + ->before_emit (exported->application, platform_data); + + g_action_group_activate_action (G_ACTION_GROUP (exported), action_name, parameter); + + G_APPLICATION_GET_CLASS (exported->application) + ->after_emit (exported->application, platform_data); +} + +static void +g_application_exported_actions_change_action_state_full (GRemoteActionGroup *remote, + const gchar *action_name, + GVariant *value, + GVariant *platform_data) +{ + GApplicationExportedActions *exported = (GApplicationExportedActions *) remote; + + G_APPLICATION_GET_CLASS (exported->application) + ->before_emit (exported->application, platform_data); + + g_action_group_change_action_state (G_ACTION_GROUP (exported), action_name, value); + + G_APPLICATION_GET_CLASS (exported->application) + ->after_emit (exported->application, platform_data); +} + +static void +g_application_exported_actions_init (GApplicationExportedActions *actions) +{ +} + +static void +g_application_exported_actions_iface_init (GRemoteActionGroupInterface *iface) +{ + iface->activate_action_full = g_application_exported_actions_activate_action_full; + iface->change_action_state_full = g_application_exported_actions_change_action_state_full; +} + +static void +g_application_exported_actions_class_init (GApplicationExportedActionsClass *class) +{ +} + +static GActionGroup * +g_application_exported_actions_new (GApplication *application) +{ + GApplicationExportedActions *actions; + + actions = g_object_new (g_application_exported_actions_get_type (), NULL); + actions->application = application; + + return G_ACTION_GROUP (actions); +} + +/* Command line option handling {{{1 */ + +static void +free_option_entry (gpointer data) +{ + GOptionEntry *entry = data; + + switch (entry->arg) + { + case G_OPTION_ARG_STRING: + case G_OPTION_ARG_FILENAME: + g_free (*(gchar **) entry->arg_data); + break; + + case G_OPTION_ARG_STRING_ARRAY: + case G_OPTION_ARG_FILENAME_ARRAY: + g_strfreev (*(gchar ***) entry->arg_data); + break; + + default: + /* most things require no free... */ + break; + } + + /* ...except for the space that we allocated for it ourselves */ + g_free (entry->arg_data); + + g_slice_free (GOptionEntry, entry); +} + +static void +g_application_pack_option_entries (GApplication *application, + GVariantDict *dict) +{ + GHashTableIter iter; + gpointer item; + + g_hash_table_iter_init (&iter, application->priv->packed_options); + while (g_hash_table_iter_next (&iter, NULL, &item)) + { + GOptionEntry *entry = item; + GVariant *value = NULL; + + switch (entry->arg) + { + case G_OPTION_ARG_NONE: + if (*(gboolean *) entry->arg_data != 2) + value = g_variant_new_boolean (*(gboolean *) entry->arg_data); + break; + + case G_OPTION_ARG_STRING: + if (*(gchar **) entry->arg_data) + value = g_variant_new_string (*(gchar **) entry->arg_data); + break; + + case G_OPTION_ARG_INT: + if (*(gint32 *) entry->arg_data) + value = g_variant_new_int32 (*(gint32 *) entry->arg_data); + break; + + case G_OPTION_ARG_FILENAME: + if (*(gchar **) entry->arg_data) + value = g_variant_new_bytestring (*(gchar **) entry->arg_data); + break; + + case G_OPTION_ARG_STRING_ARRAY: + if (*(gchar ***) entry->arg_data) + value = g_variant_new_strv (*(const gchar ***) entry->arg_data, -1); + break; + + case G_OPTION_ARG_FILENAME_ARRAY: + if (*(gchar ***) entry->arg_data) + value = g_variant_new_bytestring_array (*(const gchar ***) entry->arg_data, -1); + break; + + case G_OPTION_ARG_DOUBLE: + if (*(gdouble *) entry->arg_data) + value = g_variant_new_double (*(gdouble *) entry->arg_data); + break; + + case G_OPTION_ARG_INT64: + if (*(gint64 *) entry->arg_data) + value = g_variant_new_int64 (*(gint64 *) entry->arg_data); + break; + + default: + g_assert_not_reached (); + } + + if (value) + g_variant_dict_insert_value (dict, entry->long_name, value); + } +} + +static GVariantDict * +g_application_parse_command_line (GApplication *application, + gchar ***arguments, + GError **error) +{ + gboolean become_service = FALSE; + GVariantDict *dict = NULL; + GOptionContext *context; + + /* Due to the memory management of GOptionGroup we can only parse + * options once. That's because once you add a group to the + * GOptionContext there is no way to get it back again. This is fine: + * local_command_line() should never get invoked more than once + * anyway. Add a sanity check just to be sure. + */ + g_return_val_if_fail (!application->priv->options_parsed, NULL); + + context = g_option_context_new (NULL); + + /* If the application has not registered local options and it has + * G_APPLICATION_HANDLES_COMMAND_LINE then we have to assume that + * their primary instance commandline handler may want to deal with + * the arguments. We must therefore ignore them. + * + * We must also ignore --help in this case since some applications + * will try to handle this from the remote side. See #737869. + */ + if (application->priv->main_options == NULL && (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE)) + { + g_option_context_set_ignore_unknown_options (context, TRUE); + g_option_context_set_help_enabled (context, FALSE); + } + + /* Add the main option group, if it exists */ + if (application->priv->main_options) + { + /* This consumes the main_options */ + g_option_context_set_main_group (context, application->priv->main_options); + application->priv->main_options = NULL; + } + + /* Add any other option groups if they exist. Adding them to the + * context will consume them, so we free the list as we go... + */ + while (application->priv->option_groups) + { + g_option_context_add_group (context, application->priv->option_groups->data); + application->priv->option_groups = g_slist_delete_link (application->priv->option_groups, + application->priv->option_groups); + } + + /* In the case that we are not explicitly marked as a service or a + * launcher then we want to add the "--gapplication-service" option to + * allow the process to be made into a service. + */ + if ((application->priv->flags & (G_APPLICATION_IS_SERVICE | G_APPLICATION_IS_LAUNCHER)) == 0) + { + GOptionGroup *option_group; + GOptionEntry entries[] = { + { "gapplication-service", '\0', 0, G_OPTION_ARG_NONE, &become_service, + N_("Enter GApplication service mode (use from D-Bus service files)") }, + { NULL } + }; + + option_group = g_option_group_new ("gapplication", + _("GApplication options"), _("Show GApplication options"), + NULL, NULL); + g_option_group_set_translation_domain (option_group, GETTEXT_PACKAGE); + g_option_group_add_entries (option_group, entries); + + g_option_context_add_group (context, option_group); + } + + /* Now we parse... */ + if (!g_option_context_parse_strv (context, arguments, error)) + goto out; + + /* Check for --gapplication-service */ + if (become_service) + application->priv->flags |= G_APPLICATION_IS_SERVICE; + + dict = g_variant_dict_new (NULL); + if (application->priv->packed_options) + { + g_application_pack_option_entries (application, dict); + g_hash_table_unref (application->priv->packed_options); + application->priv->packed_options = NULL; + } + +out: + /* Make sure we don't run again */ + application->priv->options_parsed = TRUE; + + g_option_context_free (context); + + return dict; +} + +static void +add_packed_option (GApplication *application, + GOptionEntry *entry) +{ + switch (entry->arg) + { + case G_OPTION_ARG_NONE: + entry->arg_data = g_new (gboolean, 1); + *(gboolean *) entry->arg_data = 2; + break; + + case G_OPTION_ARG_INT: + entry->arg_data = g_new0 (gint, 1); + break; + + case G_OPTION_ARG_STRING: + case G_OPTION_ARG_FILENAME: + case G_OPTION_ARG_STRING_ARRAY: + case G_OPTION_ARG_FILENAME_ARRAY: + entry->arg_data = g_new0 (gpointer, 1); + break; + + case G_OPTION_ARG_INT64: + entry->arg_data = g_new0 (gint64, 1); + break; + + case G_OPTION_ARG_DOUBLE: + entry->arg_data = g_new0 (gdouble, 1); + break; + + default: + g_return_if_reached (); + } + + if (!application->priv->packed_options) + application->priv->packed_options = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, free_option_entry); + + g_hash_table_insert (application->priv->packed_options, + g_strdup (entry->long_name), + g_slice_dup (GOptionEntry, entry)); +} + +/** + * g_application_add_main_option_entries: + * @application: a #GApplication + * @entries: (array zero-terminated=1) (element-type GOptionEntry) a + * %NULL-terminated list of #GOptionEntrys + * + * Adds main option entries to be handled by @application. + * + * This function is comparable to g_option_context_add_main_entries(). + * + * After the commandline arguments are parsed, the + * #GApplication::handle-local-options signal will be emitted. At this + * point, the application can inspect the values pointed to by @arg_data + * in the given #GOptionEntrys. + * + * Unlike #GOptionContext, #GApplication supports giving a %NULL + * @arg_data for a non-callback #GOptionEntry. This results in the + * argument in question being packed into a #GVariantDict which is also + * passed to #GApplication::handle-local-options, where it can be + * inspected and modified. If %G_APPLICATION_HANDLES_COMMAND_LINE is + * set, then the resulting dictionary is sent to the primary instance, + * where g_application_command_line_get_options_dict() will return it. + * This "packing" is done according to the type of the argument -- + * booleans for normal flags, strings for strings, bytestrings for + * filenames, etc. The packing only occurs if the flag is given (ie: we + * do not pack a "false" #GVariant in the case that a flag is missing). + * + * In general, it is recommended that all commandline arguments are + * parsed locally. The options dictionary should then be used to + * transmit the result of the parsing to the primary instance, where + * g_variant_dict_lookup() can be used. For local options, it is + * possible to either use @arg_data in the usual way, or to consult (and + * potentially remove) the option from the options dictionary. + * + * This function is new in GLib 2.40. Before then, the only real choice + * was to send all of the commandline arguments (options and all) to the + * primary instance for handling. #GApplication ignored them completely + * on the local side. Calling this function "opts in" to the new + * behaviour, and in particular, means that unrecognised options will be + * treated as errors. Unrecognised options have never been ignored when + * %G_APPLICATION_HANDLES_COMMAND_LINE is unset. + * + * If #GApplication::handle-local-options needs to see the list of + * filenames, then the use of %G_OPTION_REMAINING is recommended. If + * @arg_data is %NULL then %G_OPTION_REMAINING can be used as a key into + * the options dictionary. If you do use %G_OPTION_REMAINING then you + * need to handle these arguments for yourself because once they are + * consumed, they will no longer be visible to the default handling + * (which treats them as filenames to be opened). + * + * Since: 2.40 + */ +void +g_application_add_main_option_entries (GApplication *application, + const GOptionEntry *entries) +{ + gint i; + + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (entries != NULL); + + if (!application->priv->main_options) + application->priv->main_options = g_option_group_new (NULL, NULL, NULL, NULL, NULL); + + for (i = 0; entries[i].long_name; i++) + { + GOptionEntry my_entries[2] = { { NULL }, { NULL } }; + my_entries[0] = entries[i]; + + if (!my_entries[0].arg_data) + add_packed_option (application, &my_entries[0]); + + g_option_group_add_entries (application->priv->main_options, my_entries); + } +} + +/** + * g_application_add_main_option: + * @application: the #GApplication + * @long_name: the long name of an option used to specify it in a commandline + * @short_name: the short name of an option + * @flags: flags from #GOptionFlags + * @arg: the type of the option, as a #GOptionArg + * @description: the description for the option in `--help` output + * @arg_description: (nullable): the placeholder to use for the extra argument + * parsed by the option in `--help` output + * + * Add an option to be handled by @application. + * + * Calling this function is the equivalent of calling + * g_application_add_main_option_entries() with a single #GOptionEntry + * that has its arg_data member set to %NULL. + * + * The parsed arguments will be packed into a #GVariantDict which + * is passed to #GApplication::handle-local-options. If + * %G_APPLICATION_HANDLES_COMMAND_LINE is set, then it will also + * be sent to the primary instance. See + * g_application_add_main_option_entries() for more details. + * + * See #GOptionEntry for more documentation of the arguments. + * + * Since: 2.42 + **/ +void +g_application_add_main_option (GApplication *application, + const char *long_name, + char short_name, + GOptionFlags flags, + GOptionArg arg, + const char *description, + const char *arg_description) +{ + gchar *dup_string; + GOptionEntry my_entry[2] = { + { NULL, short_name, flags, arg, NULL, NULL, NULL }, + { NULL } + }; + + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (long_name != NULL); + g_return_if_fail (description != NULL); + + my_entry[0].long_name = dup_string = g_strdup (long_name); + application->priv->option_strings = g_slist_prepend (application->priv->option_strings, dup_string); + + my_entry[0].description = dup_string = g_strdup (description); + application->priv->option_strings = g_slist_prepend (application->priv->option_strings, dup_string); + + my_entry[0].arg_description = dup_string = g_strdup (arg_description); + application->priv->option_strings = g_slist_prepend (application->priv->option_strings, dup_string); + + g_application_add_main_option_entries (application, my_entry); +} + +/** + * g_application_add_option_group: + * @application: the #GApplication + * @group: a #GOptionGroup + * + * Adds a #GOptionGroup to the commandline handling of @application. + * + * This function is comparable to g_option_context_add_group(). + * + * Unlike g_application_add_main_option_entries(), this function does + * not deal with %NULL @arg_data and never transmits options to the + * primary instance. + * + * The reason for that is because, by the time the options arrive at the + * primary instance, it is typically too late to do anything with them. + * Taking the GTK option group as an example: GTK will already have been + * initialised by the time the #GApplication::command-line handler runs. + * In the case that this is not the first-running instance of the + * application, the existing instance may already have been running for + * a very long time. + * + * This means that the options from #GOptionGroup are only really usable + * in the case that the instance of the application being run is the + * first instance. Passing options like `--display=` or `--gdk-debug=` + * on future runs will have no effect on the existing primary instance. + * + * Calling this function will cause the options in the supplied option + * group to be parsed, but it does not cause you to be "opted in" to the + * new functionality whereby unrecognised options are rejected even if + * %G_APPLICATION_HANDLES_COMMAND_LINE was given. + * + * Since: 2.40 + **/ +void +g_application_add_option_group (GApplication *application, + GOptionGroup *group) +{ + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (group != NULL); + + application->priv->option_groups = g_slist_prepend (application->priv->option_groups, group); +} /* vfunc defaults {{{1 */ static void @@ -207,11 +790,13 @@ g_application_real_after_emit (GApplication *application, static void g_application_real_startup (GApplication *application) { + application->priv->did_startup = TRUE; } static void g_application_real_shutdown (GApplication *application) { + application->priv->did_shutdown = TRUE; } static void @@ -281,40 +866,137 @@ g_application_real_command_line (GApplication *application, return 1; } +static gint +g_application_real_handle_local_options (GApplication *application, + GVariantDict *options) +{ + return -1; +} + +static GVariant * +get_platform_data (GApplication *application, + GVariant *options) +{ + GVariantBuilder *builder; + GVariant *result; + + builder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}")); + + { + gchar *cwd = g_get_current_dir (); + g_variant_builder_add (builder, "{sv}", "cwd", + g_variant_new_bytestring (cwd)); + g_free (cwd); + } + + if (application->priv->flags & G_APPLICATION_SEND_ENVIRONMENT) + { + GVariant *array; + gchar **envp; + + envp = g_get_environ (); + array = g_variant_new_bytestring_array ((const gchar **) envp, -1); + g_strfreev (envp); + + g_variant_builder_add (builder, "{sv}", "environ", array); + } + + if (options) + g_variant_builder_add (builder, "{sv}", "options", options); + + G_APPLICATION_GET_CLASS (application)-> + add_platform_data (application, builder); + + result = g_variant_builder_end (builder); + g_variant_builder_unref (builder); + + return result; +} + +static void +g_application_call_command_line (GApplication *application, + const gchar * const *arguments, + GVariant *options, + gint *exit_status) +{ + if (application->priv->is_remote) + { + GVariant *platform_data; + + platform_data = get_platform_data (application, options); + *exit_status = g_application_impl_command_line (application->priv->impl, arguments, platform_data); + } + else + { + GApplicationCommandLine *cmdline; + GVariant *v; + + v = g_variant_new_bytestring_array ((const gchar **) arguments, -1); + cmdline = g_object_new (G_TYPE_APPLICATION_COMMAND_LINE, + "arguments", v, + "options", options, + NULL); + g_signal_emit (application, g_application_signals[SIGNAL_COMMAND_LINE], 0, cmdline, exit_status); + g_object_unref (cmdline); + } +} + static gboolean g_application_real_local_command_line (GApplication *application, gchar ***arguments, int *exit_status) { - if (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE) - return FALSE; + GError *error = NULL; + GVariantDict *options; + gint n_args; - else + options = g_application_parse_command_line (application, arguments, &error); + if (!options) { - GError *error = NULL; - gint n_args; + g_printerr ("%s\n", error->message); + *exit_status = 1; + return TRUE; + } - if (!g_application_register (application, NULL, &error)) - { - g_critical ("%s", error->message); - g_error_free (error); - *exit_status = 1; - return TRUE; - } + g_signal_emit (application, g_application_signals[SIGNAL_HANDLE_LOCAL_OPTIONS], 0, options, exit_status); - n_args = g_strv_length (*arguments); + if (*exit_status >= 0) + { + g_variant_dict_unref (options); + return TRUE; + } - if (application->priv->flags & G_APPLICATION_IS_SERVICE) - { - if ((*exit_status = n_args > 1)) - { - g_printerr ("GApplication service mode takes no arguments.\n"); - application->priv->flags &= ~G_APPLICATION_IS_SERVICE; - } + if (!g_application_register (application, NULL, &error)) + { + g_printerr ("Failed to register: %s\n", error->message); + g_variant_dict_unref (options); + g_error_free (error); + *exit_status = 1; + return TRUE; + } - return TRUE; - } + n_args = g_strv_length (*arguments); + if (application->priv->flags & G_APPLICATION_IS_SERVICE) + { + if ((*exit_status = n_args > 1)) + { + g_printerr ("GApplication service mode takes no arguments.\n"); + application->priv->flags &= ~G_APPLICATION_IS_SERVICE; + *exit_status = 1; + } + else + *exit_status = 0; + } + else if (application->priv->flags & G_APPLICATION_HANDLES_COMMAND_LINE) + { + g_application_call_command_line (application, + (const gchar **) *arguments, + g_variant_dict_end (options), + exit_status); + } + else + { if (n_args <= 1) { g_application_activate (application); @@ -349,9 +1031,11 @@ g_application_real_local_command_line (GApplication *application, *exit_status = 0; } } - - return TRUE; } + + g_variant_dict_unref (options); + + return TRUE; } static void @@ -360,20 +1044,20 @@ g_application_real_add_platform_data (GApplication *application, { } -static void -g_application_real_quit_mainloop (GApplication *application) +static gboolean +g_application_real_dbus_register (GApplication *application, + GDBusConnection *connection, + const gchar *object_path, + GError **error) { - if (application->priv->mainloop != NULL) - g_main_loop_quit (application->priv->mainloop); + return TRUE; } static void -g_application_real_run_mainloop (GApplication *application) +g_application_real_dbus_unregister (GApplication *application, + GDBusConnection *connection, + const gchar *object_path) { - if (application->priv->mainloop == NULL) - application->priv->mainloop = g_main_loop_new (NULL, FALSE); - - g_main_loop_run (application->priv->mainloop); } /* GObject implementation stuff {{{1 */ @@ -396,14 +1080,18 @@ g_application_set_property (GObject *object, g_application_set_flags (application, g_value_get_flags (value)); break; + case PROP_RESOURCE_BASE_PATH: + g_application_set_resource_base_path (application, g_value_get_string (value)); + break; + case PROP_INACTIVITY_TIMEOUT: g_application_set_inactivity_timeout (application, g_value_get_uint (value)); break; case PROP_ACTION_GROUP: - g_application_set_action_group (application, - g_value_get_object (value)); + g_clear_object (&application->priv->actions); + application->priv->actions = g_value_dup_object (value); break; default: @@ -416,14 +1104,16 @@ g_application_set_property (GObject *object, * @application: a #GApplication * @action_group: (allow-none): a #GActionGroup, or %NULL * - * Sets or unsets the group of actions associated with the application. - * - * These actions are the actions that can be remotely invoked. - * - * It is an error to call this function after the application has been - * registered. + * This used to be how actions were associated with a #GApplication. + * Now there is #GActionMap for that. * * Since: 2.28 + * + * Deprecated:2.32:Use the #GActionMap interface instead. Never ever + * mix use of this API with use of #GActionMap on the same @application + * or things will go very badly wrong. This function is known to + * introduce buggy behaviour (ie: signals not emitted on changes to the + * action group), so you should really use #GActionMap instead. **/ void g_application_set_action_group (GApplication *application, @@ -461,6 +1151,10 @@ g_application_get_property (GObject *object, g_application_get_flags (application)); break; + case PROP_RESOURCE_BASE_PATH: + g_value_set_string (value, g_application_get_resource_base_path (application)); + break; + case PROP_IS_REGISTERED: g_value_set_boolean (value, g_application_get_is_registered (application)); @@ -486,7 +1180,22 @@ g_application_constructed (GObject *object) { GApplication *application = G_APPLICATION (object); - g_assert (application->priv->id != NULL); + if (g_application_get_default () == NULL) + g_application_set_default (application); + + /* People should not set properties from _init... */ + g_assert (application->priv->resource_path == NULL); + + if (application->priv->id != NULL) + { + gint i; + + application->priv->resource_path = g_strconcat ("/", application->priv->id, NULL); + + for (i = 1; application->priv->resource_path[i]; i++) + if (application->priv->resource_path[i] == '.') + application->priv->resource_path[i] = '/'; + } } static void @@ -494,12 +1203,28 @@ g_application_finalize (GObject *object) { GApplication *application = G_APPLICATION (object); + g_slist_free_full (application->priv->option_groups, (GDestroyNotify) g_option_group_free); + if (application->priv->main_options) + g_option_group_free (application->priv->main_options); + if (application->priv->packed_options) + { + g_slist_free_full (application->priv->option_strings, g_free); + g_hash_table_unref (application->priv->packed_options); + } if (application->priv->impl) g_application_impl_destroy (application->priv->impl); g_free (application->priv->id); - if (application->priv->mainloop) - g_main_loop_unref (application->priv->mainloop); + if (g_application_get_default () == application) + g_application_set_default (NULL); + + if (application->priv->actions) + g_object_unref (application->priv->actions); + + if (application->priv->notifications) + g_object_unref (application->priv->notifications); + + g_free (application->priv->resource_path); G_OBJECT_CLASS (g_application_parent_class) ->finalize (object); @@ -508,9 +1233,35 @@ g_application_finalize (GObject *object) static void g_application_init (GApplication *application) { - application->priv = G_TYPE_INSTANCE_GET_PRIVATE (application, - G_TYPE_APPLICATION, - GApplicationPrivate); + application->priv = g_application_get_instance_private (application); + + application->priv->actions = g_application_exported_actions_new (application); + + /* application->priv->actions is the one and only ref on the group, so when + * we dispose, the action group will die, disconnecting all signals. + */ + g_signal_connect_swapped (application->priv->actions, "action-added", + G_CALLBACK (g_action_group_action_added), application); + g_signal_connect_swapped (application->priv->actions, "action-enabled-changed", + G_CALLBACK (g_action_group_action_enabled_changed), application); + g_signal_connect_swapped (application->priv->actions, "action-state-changed", + G_CALLBACK (g_action_group_action_state_changed), application); + g_signal_connect_swapped (application->priv->actions, "action-removed", + G_CALLBACK (g_action_group_action_removed), application); +} + +static gboolean +g_application_handle_local_options_accumulator (GSignalInvocationHint *ihint, + GValue *return_accu, + const GValue *handler_return, + gpointer dummy) +{ + gint value; + + value = g_value_get_int (handler_return); + g_value_set_int (return_accu, value); + + return value >= 0; } static void @@ -531,9 +1282,10 @@ g_application_class_init (GApplicationClass *class) class->open = g_application_real_open; class->command_line = g_application_real_command_line; class->local_command_line = g_application_real_local_command_line; + class->handle_local_options = g_application_real_handle_local_options; class->add_platform_data = g_application_real_add_platform_data; - class->quit_mainloop = g_application_real_quit_mainloop; - class->run_mainloop = g_application_real_run_mainloop; + class->dbus_register = g_application_real_dbus_register; + class->dbus_unregister = g_application_real_dbus_unregister; g_object_class_install_property (object_class, PROP_APPLICATION_ID, g_param_spec_string ("application-id", @@ -549,6 +1301,12 @@ g_application_class_init (GApplicationClass *class) G_TYPE_APPLICATION_FLAGS, G_APPLICATION_FLAGS_NONE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, PROP_RESOURCE_BASE_PATH, + g_param_spec_string ("resource-base-path", + P_("Resource base path"), + P_("The base resource path for the application"), + NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, PROP_IS_REGISTERED, g_param_spec_boolean ("is-registered", P_("Is registered"), @@ -573,7 +1331,7 @@ g_application_class_init (GApplicationClass *class) P_("Action group"), P_("The group of actions that the application exports"), G_TYPE_ACTION_GROUP, - G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS)); + G_PARAM_DEPRECATED | G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS)); /** * GApplication::startup: @@ -583,7 +1341,7 @@ g_application_class_init (GApplicationClass *class) * after registration. See g_application_register(). */ g_application_signals[SIGNAL_STARTUP] = - g_signal_new ("startup", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST, + g_signal_new ("startup", G_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GApplicationClass, startup), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); @@ -636,7 +1394,7 @@ g_application_class_init (GApplicationClass *class) * * The ::command-line signal is emitted on the primary instance when * a commandline is not handled locally. See g_application_run() and - * the #GApplicationCommandline documentation for more information. + * the #GApplicationCommandLine documentation for more information. * * Returns: An integer that is set as the exit status for the calling * process. See g_application_command_line_set_exit_status(). @@ -648,43 +1406,66 @@ g_application_class_init (GApplicationClass *class) NULL, G_TYPE_INT, 1, G_TYPE_APPLICATION_COMMAND_LINE); - g_type_class_add_private (class, sizeof (GApplicationPrivate)); -} - -static GVariant * -get_platform_data (GApplication *application) -{ - GVariantBuilder *builder; - GVariant *result; - - builder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}")); - - { - gchar *cwd = g_get_current_dir (); - g_variant_builder_add (builder, "{sv}", "cwd", - g_variant_new_bytestring (cwd)); - g_free (cwd); - } - - if (application->priv->flags & G_APPLICATION_SEND_ENVIRONMENT) - { - GVariant *array; - gchar **envp; - - envp = g_get_environ (); - array = g_variant_new_bytestring_array ((const gchar **) envp, -1); - g_strfreev (envp); - - g_variant_builder_add (builder, "{sv}", "environ", array); - } - - G_APPLICATION_GET_CLASS (application)-> - add_platform_data (application, builder); - - result = g_variant_builder_end (builder); - g_variant_builder_unref (builder); + /** + * GApplication::handle-local-options: + * @application: the application + * @options: the options dictionary + * + * The ::handle-local-options signal is emitted on the local instance + * after the parsing of the commandline options has occurred. + * + * You can add options to be recognised during commandline option + * parsing using g_application_add_main_option_entries() and + * g_application_add_option_group(). + * + * Signal handlers can inspect @options (along with values pointed to + * from the @arg_data of an installed #GOptionEntrys) in order to + * decide to perform certain actions, including direct local handling + * (which may be useful for options like --version). + * + * In the event that the application is marked + * %G_APPLICATION_HANDLES_COMMAND_LINE the "normal processing" will + * send the @option dictionary to the primary instance where it can be + * read with g_application_command_line_get_options(). The signal + * handler can modify the dictionary before returning, and the + * modified dictionary will be sent. + * + * In the event that %G_APPLICATION_HANDLES_COMMAND_LINE is not set, + * "normal processing" will treat the remaining uncollected command + * line arguments as filenames or URIs. If there are no arguments, + * the application is activated by g_application_activate(). One or + * more arguments results in a call to g_application_open(). + * + * If you want to handle the local commandline arguments for yourself + * by converting them to calls to g_application_open() or + * g_action_group_activate_action() then you must be sure to register + * the application first. You should probably not call + * g_application_activate() for yourself, however: just return -1 and + * allow the default handler to do it for you. This will ensure that + * the `--gapplication-service` switch works properly (i.e. no activation + * in that case). + * + * Note that this signal is emitted from the default implementation of + * local_command_line(). If you override that function and don't + * chain up then this signal will never be emitted. + * + * You can override local_command_line() if you need more powerful + * capabilities than what is provided here, but this should not + * normally be required. + * + * Returns: an exit code. If you have handled your options and want + * to exit the process, return a non-negative option, 0 for success, + * and a positive value for failure. To continue, return -1 to let + * the default option processing continue. + * + * Since: 2.40 + **/ + g_application_signals[SIGNAL_HANDLE_LOCAL_OPTIONS] = + g_signal_new ("handle-local-options", G_TYPE_APPLICATION, G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GApplicationClass, handle_local_options), + g_application_handle_local_options_accumulator, NULL, NULL, + G_TYPE_INT, 1, G_TYPE_VARIANT_DICT); - return result; } /* Application ID validity {{{1 */ @@ -692,7 +1473,6 @@ get_platform_data (GApplication *application) /** * g_application_id_is_valid: * @application_id: a potential application identifier - * @returns: %TRUE if @application_id is valid * * Checks if @application_id is a valid application identifier. * @@ -701,14 +1481,23 @@ get_platform_data (GApplication *application) * * For convenience, the restrictions on application identifiers are * reproduced here: - * - * Application identifiers must contain only the ASCII characters "[A-Z][a-z][0-9]_-." and must not begin with a digit. - * Application identifiers must contain at least one '.' (period) character (and thus at least three elements). - * Application identifiers must not begin or end with a '.' (period) character. - * Application identifiers must not contain consecutive '.' (period) characters. - * Application identifiers must not exceed 255 characters. - * - **/ + * + * - Application identifiers must contain only the ASCII characters + * "[A-Z][a-z][0-9]_-." and must not begin with a digit. + * + * - Application identifiers must contain at least one '.' (period) + * character (and thus at least three elements). + * + * - Application identifiers must not begin or end with a '.' (period) + * character. + * + * - Application identifiers must not contain consecutive '.' (period) + * characters. + * + * - Application identifiers must not exceed 255 characters. + * + * Returns: %TRUE if @application_id is valid + */ gboolean g_application_id_is_valid (const gchar *application_id) { @@ -756,23 +1545,24 @@ g_application_id_is_valid (const gchar *application_id) /* Public Constructor {{{1 */ /** * g_application_new: - * @application_id: the application id + * @application_id: (allow-none): the application id * @flags: the application flags - * @returns: a new #GApplication instance * * Creates a new #GApplication instance. * - * This function calls g_type_init() for you. + * If non-%NULL, the application id must be valid. See + * g_application_id_is_valid(). + * + * If no application ID is given then some features of #GApplication + * (most notably application uniqueness) will be disabled. * - * The application id must be valid. See g_application_id_is_valid(). + * Returns: a new #GApplication instance **/ GApplication * g_application_new (const gchar *application_id, GApplicationFlags flags) { - g_return_val_if_fail (g_application_id_is_valid (application_id), NULL); - - g_type_init (); + g_return_val_if_fail (application_id == NULL || g_application_id_is_valid (application_id), NULL); return g_object_new (G_TYPE_APPLICATION, "application-id", application_id, @@ -784,10 +1574,11 @@ g_application_new (const gchar *application_id, /** * g_application_get_application_id: * @application: a #GApplication - * @returns: the identifier for @application, owned by @application * * Gets the unique identifier for @application. * + * Returns: the identifier for @application, owned by @application + * * Since: 2.28 **/ const gchar * @@ -801,14 +1592,15 @@ g_application_get_application_id (GApplication *application) /** * g_application_set_application_id: * @application: a #GApplication - * @application_id: the identifier for @application + * @application_id: (allow-none): the identifier for @application * * Sets the unique identifier for @application. * * The application id can only be modified if @application has not yet * been registered. * - * The application id must be valid. See g_application_id_is_valid(). + * If non-%NULL, the application id must be valid. See + * g_application_id_is_valid(). * * Since: 2.28 **/ @@ -820,7 +1612,7 @@ g_application_set_application_id (GApplication *application, if (g_strcmp0 (application->priv->id, application_id) != 0) { - g_return_if_fail (g_application_id_is_valid (application_id)); + g_return_if_fail (application_id == NULL || g_application_id_is_valid (application_id)); g_return_if_fail (!application->priv->is_registered); g_free (application->priv->id); @@ -833,12 +1625,13 @@ g_application_set_application_id (GApplication *application, /** * g_application_get_flags: * @application: a #GApplication - * @returns: the flags for @application * * Gets the flags for @application. * * See #GApplicationFlags. * + * Returns: the flags for @application + * * Since: 2.28 **/ GApplicationFlags @@ -880,6 +1673,79 @@ g_application_set_flags (GApplication *application, } /** + * g_application_get_resource_base_path: + * @application: a #GApplication + * + * Gets the resource base path of @application. + * + * See g_application_set_resource_base_path() for more information. + * + * Returns: (nullable): the base resource path, if one is set + * + * Since: 2.42 + */ +const gchar * +g_application_get_resource_base_path (GApplication *application) +{ + g_return_val_if_fail (G_IS_APPLICATION (application), NULL); + + return application->priv->resource_path; +} + +/** + * g_application_set_resource_base_path: + * @application: a #GApplication + * @resource_path: (nullable): the resource path to use + * + * Sets (or unsets) the base resource path of @application. + * + * The path is used to automatically load various [application + * resources][gresource] such as menu layouts and action descriptions. + * The various types of resources will be found at fixed names relative + * to the given base path. + * + * By default, the resource base path is determined from the application + * ID by prefixing '/' and replacing each '.' with '/'. This is done at + * the time that the #GApplication object is constructed. Changes to + * the application ID after that point will not have an impact on the + * resource base path. + * + * As an example, if the application has an ID of "org.example.app" then + * the default resource base path will be "/org/example/app". If this + * is a #GtkApplication (and you have not manually changed the path) + * then Gtk will then search for the menus of the application at + * "/org/example/app/gtk/menus.ui". + * + * See #GResource for more information about adding resources to your + * application. + * + * You can disable automatic resource loading functionality by setting + * the path to %NULL. + * + * Changing the resource base path once the application is running is + * not recommended. The point at which the resource path is consulted + * for forming paths for various purposes is unspecified. + * + * Since: 2.42 + */ +void +g_application_set_resource_base_path (GApplication *application, + const gchar *resource_path) +{ + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (resource_path == NULL || g_str_has_prefix (resource_path, "/")); + + if (g_strcmp0 (application->priv->resource_path, resource_path) != 0) + { + g_free (application->priv->resource_path); + + application->priv->resource_path = g_strdup (resource_path); + + g_object_notify (G_OBJECT (application), "resource-base-path"); + } +} + +/** * g_application_get_inactivity_timeout: * @application: a #GApplication * @@ -929,61 +1795,126 @@ g_application_set_inactivity_timeout (GApplication *application, g_object_notify (G_OBJECT (application), "inactivity-timeout"); } } -/* Read-only property getters (is registered, is remote) {{{1 */ +/* Read-only property getters (is registered, is remote, dbus stuff) {{{1 */ +/** + * g_application_get_is_registered: + * @application: a #GApplication + * + * Checks if @application is registered. + * + * An application is registered if g_application_register() has been + * successfully called. + * + * Returns: %TRUE if @application is registered + * + * Since: 2.28 + **/ +gboolean +g_application_get_is_registered (GApplication *application) +{ + g_return_val_if_fail (G_IS_APPLICATION (application), FALSE); + + return application->priv->is_registered; +} + +/** + * g_application_get_is_remote: + * @application: a #GApplication + * + * Checks if @application is remote. + * + * If @application is remote then it means that another instance of + * application already exists (the 'primary' instance). Calls to + * perform actions on @application will result in the actions being + * performed by the primary instance. + * + * The value of this property cannot be accessed before + * g_application_register() has been called. See + * g_application_get_is_registered(). + * + * Returns: %TRUE if @application is remote + * + * Since: 2.28 + **/ +gboolean +g_application_get_is_remote (GApplication *application) +{ + g_return_val_if_fail (G_IS_APPLICATION (application), FALSE); + g_return_val_if_fail (application->priv->is_registered, FALSE); + + return application->priv->is_remote; +} + /** - * g_application_get_is_registered: + * g_application_get_dbus_connection: * @application: a #GApplication - * @returns: %TRUE if @application is registered * - * Checks if @application is registered. + * Gets the #GDBusConnection being used by the application, or %NULL. * - * An application is registered if g_application_register() has been - * successfully called. + * If #GApplication is using its D-Bus backend then this function will + * return the #GDBusConnection being used for uniqueness and + * communication with the desktop environment and other instances of the + * application. * - * Since: 2.28 + * If #GApplication is not using D-Bus then this function will return + * %NULL. This includes the situation where the D-Bus backend would + * normally be in use but we were unable to connect to the bus. + * + * This function must not be called before the application has been + * registered. See g_application_get_is_registered(). + * + * Returns: (transfer none): a #GDBusConnection, or %NULL + * + * Since: 2.34 **/ -gboolean -g_application_get_is_registered (GApplication *application) +GDBusConnection * +g_application_get_dbus_connection (GApplication *application) { g_return_val_if_fail (G_IS_APPLICATION (application), FALSE); + g_return_val_if_fail (application->priv->is_registered, FALSE); - return application->priv->is_registered; + return g_application_impl_get_dbus_connection (application->priv->impl); } /** - * g_application_get_is_remote: + * g_application_get_dbus_object_path: * @application: a #GApplication - * @returns: %TRUE if @application is remote * - * Checks if @application is remote. + * Gets the D-Bus object path being used by the application, or %NULL. * - * If @application is remote then it means that another instance of - * application already exists (the 'primary' instance). Calls to - * perform actions on @application will result in the actions being - * performed by the primary instance. + * If #GApplication is using its D-Bus backend then this function will + * return the D-Bus object path that #GApplication is using. If the + * application is the primary instance then there is an object published + * at this path. If the application is not the primary instance then + * the result of this function is undefined. * - * The value of this property cannot be accessed before - * g_application_register() has been called. See - * g_application_get_is_registered(). + * If #GApplication is not using D-Bus then this function will return + * %NULL. This includes the situation where the D-Bus backend would + * normally be in use but we were unable to connect to the bus. * - * Since: 2.28 + * This function must not be called before the application has been + * registered. See g_application_get_is_registered(). + * + * Returns: the object path, or %NULL + * + * Since: 2.34 **/ -gboolean -g_application_get_is_remote (GApplication *application) +const gchar * +g_application_get_dbus_object_path (GApplication *application) { g_return_val_if_fail (G_IS_APPLICATION (application), FALSE); g_return_val_if_fail (application->priv->is_registered, FALSE); - return application->priv->is_remote; + return g_application_impl_get_dbus_object_path (application->priv->impl); } + /* Register {{{1 */ /** * g_application_register: * @application: a #GApplication - * @cancellable: a #GCancellable, or %NULL + * @cancellable: (allow-none): a #GCancellable, or %NULL * @error: a pointer to a NULL #GError, or %NULL - * @returns: %TRUE if registration succeeded * * Attempts registration of the application. * @@ -993,6 +1924,9 @@ g_application_get_is_remote (GApplication *application) * application identifier as a unique bus name on the session bus using * GDBus. * + * If there is no application ID or if %G_APPLICATION_NON_UNIQUE was + * given, then this process will always become the primary instance. + * * Due to the internal architecture of GDBus, method calls can be * dispatched at any time (even if a main loop is not running). For * this reason, you must ensure that any object paths that you wish to @@ -1002,7 +1936,8 @@ g_application_get_is_remote (GApplication *application) * returned with no work performed. * * The #GApplication::startup signal is emitted if registration succeeds - * and @application is the primary instance. + * and @application is the primary instance (including the non-unique + * case). * * In the event of an error (such as @cancellable being cancelled, or a * failure to connect to the session bus), %FALSE is returned and @error @@ -1012,6 +1947,8 @@ g_application_get_is_remote (GApplication *application) * instance is or is not the primary instance of the application. See * g_application_get_is_remote() for that. * + * Returns: %TRUE if registration succeeded + * * Since: 2.28 **/ gboolean @@ -1023,17 +1960,18 @@ g_application_register (GApplication *application, if (!application->priv->is_registered) { - if (~application->priv->flags & G_APPLICATION_NON_UNIQUE) - { - application->priv->impl = - g_application_impl_register (application, application->priv->id, - application->priv->flags, - &application->priv->remote_actions, - cancellable, error); - - if (application->priv->impl == NULL) - return FALSE; - } + if (application->priv->id == NULL) + application->priv->flags |= G_APPLICATION_NON_UNIQUE; + + application->priv->impl = + g_application_impl_register (application, application->priv->id, + application->priv->flags, + application->priv->actions, + &application->priv->remote_actions, + cancellable, error); + + if (application->priv->impl == NULL) + return FALSE; application->priv->is_remote = application->priv->remote_actions != NULL; application->priv->is_registered = TRUE; @@ -1041,7 +1979,14 @@ g_application_register (GApplication *application, g_object_notify (G_OBJECT (application), "is-registered"); if (!application->priv->is_remote) - g_signal_emit (application, g_application_signals[SIGNAL_STARTUP], 0); + { + g_signal_emit (application, g_application_signals[SIGNAL_STARTUP], 0); + + if (!application->priv->did_startup) + g_critical ("GApplication subclass '%s' failed to chain up on" + " ::startup (from start of override function)", + G_OBJECT_TYPE_NAME (application)); + } } return TRUE; @@ -1063,6 +2008,8 @@ g_application_register (GApplication *application, void g_application_hold (GApplication *application) { + g_return_if_fail (G_IS_APPLICATION (application)); + if (application->priv->inactivity_timeout_id) { g_source_remove (application->priv->inactivity_timeout_id); @@ -1077,10 +2024,9 @@ inactivity_timeout_expired (gpointer data) { GApplication *application = G_APPLICATION (data); - G_APPLICATION_GET_CLASS (application) - ->quit_mainloop (application); + application->priv->inactivity_timeout_id = 0; - return FALSE; + return G_SOURCE_REMOVE; } @@ -1098,19 +2044,14 @@ inactivity_timeout_expired (gpointer data) void g_application_release (GApplication *application) { - application->priv->use_count--; + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (application->priv->use_count > 0); - if (application->priv->use_count == 0) - { - if (application->priv->inactivity_timeout) - application->priv->inactivity_timeout_id = - g_timeout_add (application->priv->inactivity_timeout, - inactivity_timeout_expired, application); + application->priv->use_count--; - else - G_APPLICATION_GET_CLASS (application) - ->quit_mainloop (application); - } + if (application->priv->use_count == 0 && application->priv->inactivity_timeout) + application->priv->inactivity_timeout_id = g_timeout_add (application->priv->inactivity_timeout, + inactivity_timeout_expired, application); } /* Activate, Open {{{1 */ @@ -1120,7 +2061,7 @@ g_application_release (GApplication *application) * * Activates the application. * - * In essence, this results in the #GApplication::activate() signal being + * In essence, this results in the #GApplication::activate signal being * emitted in the primary instance. * * The application must be registered before calling this function. @@ -1135,7 +2076,7 @@ g_application_activate (GApplication *application) if (application->priv->is_remote) g_application_impl_activate (application->priv->impl, - get_platform_data (application)); + get_platform_data (application, NULL)); else g_signal_emit (application, g_application_signals[SIGNAL_ACTIVATE], 0); @@ -1179,7 +2120,7 @@ g_application_open (GApplication *application, if (application->priv->is_remote) g_application_impl_open (application->priv->impl, files, n_files, hint, - get_platform_data (application)); + get_platform_data (application, NULL)); else g_signal_emit (application, g_application_signals[SIGNAL_OPEN], @@ -1192,7 +2133,6 @@ g_application_open (GApplication *application, * @application: a #GApplication * @argc: the argc from main() (or 0 if @argv is %NULL) * @argv: (array length=argc) (allow-none): the argv from main(), or %NULL - * @returns: the exit status * * Runs the application. * @@ -1200,66 +2140,78 @@ g_application_open (GApplication *application, * is intended to be returned by main(). Although you are expected to pass * the @argc, @argv parameters from main() to this function, it is possible * to pass %NULL if @argv is not available or commandline handling is not - * required. - * - * First, the local_command_line() virtual function is invoked. - * This function always runs on the local instance. It gets passed a pointer - * to a %NULL-terminated copy of @argv and is expected to remove the arguments - * that it handled (shifting up remaining arguments). See - * for an example of - * parsing @argv manually. Alternatively, you may use the #GOptionContext API, - * after setting argc = g_strv_length (argv);. - * - * The last argument to local_command_line() is a pointer to the @status - * variable which can used to set the exit status that is returned from - * g_application_run(). - * - * If local_command_line() returns %TRUE, the command line is expected - * to be completely handled, including possibly registering as the primary - * instance, calling g_application_activate() or g_application_open(), etc. - * - * If local_command_line() returns %FALSE then the application is registered - * and the #GApplication::command-line signal is emitted in the primary - * instance (which may or may not be this instance). The signal handler - * gets passed a #GApplicationCommandline object that (among other things) - * contains the remaining commandline arguments that have not been handled - * by local_command_line(). - * - * If the application has the %G_APPLICATION_HANDLES_COMMAND_LINE - * flag set then the default implementation of local_command_line() - * always returns %FALSE immediately, resulting in the commandline - * always being handled in the primary instance. - * - * Otherwise, the default implementation of local_command_line() tries - * to do a couple of things that are probably reasonable for most - * applications. First, g_application_register() is called to attempt - * to register the application. If that works, then the command line - * arguments are inspected. If no commandline arguments are given, then - * g_application_activate() is called. If commandline arguments are - * given and the %G_APPLICATION_HANDLES_OPEN flag is set then they - * are assumed to be filenames and g_application_open() is called. - * - * If you need to handle commandline arguments that are not filenames, - * and you don't mind commandline handling to happen in the primary - * instance, you should set %G_APPLICATION_HANDLED_COMMAND_LINE and - * process the commandline arguments in your #GApplication::command-line - * signal handler, either manually or using the #GOptionContext API. + * required. Note that on Windows, @argc and @argv are ignored, and + * g_win32_get_command_line() is called internally (for proper support + * of Unicode commandline arguments). + * + * #GApplication will attempt to parse the commandline arguments. You + * can add commandline flags to the list of recognised options by way of + * g_application_add_main_option_entries(). After this, the + * #GApplication::handle-local-options signal is emitted, from which the + * application can inspect the values of its #GOptionEntrys. + * + * #GApplication::handle-local-options is a good place to handle options + * such as `--version`, where an immediate reply from the local process is + * desired (instead of communicating with an already-running instance). + * A #GApplication::handle-local-options handler can stop further processing + * by returning a non-negative value, which then becomes the exit status of + * the process. + * + * What happens next depends on the flags: if + * %G_APPLICATION_HANDLES_COMMAND_LINE was specified then the remaining + * commandline arguments are sent to the primary instance, where a + * #GApplication::command-line signal is emitted. Otherwise, the + * remaining commandline arguments are assumed to be a list of files. + * If there are no files listed, the application is activated via the + * #GApplication::activate signal. If there are one or more files, and + * %G_APPLICATION_HANDLES_OPEN was specified then the files are opened + * via the #GApplication::open signal. * * If you are interested in doing more complicated local handling of the * commandline then you should implement your own #GApplication subclass * and override local_command_line(). In this case, you most likely want * to return %TRUE from your local_command_line() implementation to * suppress the default handling. See - * for an example. + * [gapplication-example-cmdline2.c][gapplication-example-cmdline2] + * for an example. * * If, after the above is done, the use count of the application is zero * then the exit status is returned immediately. If the use count is - * non-zero then the mainloop is run until the use count falls to zero, - * at which point 0 is returned. - * - * If the %G_APPLICATION_IS_SERVICE flag is set, then the exiting at - * use count of zero is delayed for a while (ie: the instance stays - * around to provide its service to others). + * non-zero then the default main context is iterated until the use count + * falls to zero, at which point 0 is returned. + * + * If the %G_APPLICATION_IS_SERVICE flag is set, then the service will + * run for as much as 10 seconds with a use count of zero while waiting + * for the message that caused the activation to arrive. After that, + * if the use count falls to zero the application will exit immediately, + * except in the case that g_application_set_inactivity_timeout() is in + * use. + * + * This function sets the prgname (g_set_prgname()), if not already set, + * to the basename of argv[0]. Since 2.38, if %G_APPLICATION_IS_SERVICE + * is specified, the prgname is set to the application ID. The main + * impact of this is is that the wmclass of windows created by Gtk+ will + * be set accordingly, which helps the window manager determine which + * application is showing the window. + * + * Since 2.40, applications that are not explicitly flagged as services + * or launchers (ie: neither %G_APPLICATION_IS_SERVICE or + * %G_APPLICATION_IS_LAUNCHER are given as flags) will check (from the + * default handler for local_command_line) if "--gapplication-service" + * was given in the command line. If this flag is present then normal + * commandline processing is interrupted and the + * %G_APPLICATION_IS_SERVICE flag is set. This provides a "compromise" + * solution whereby running an application directly from the commandline + * will invoke it in the normal way (which can be useful for debugging) + * while still allowing applications to be D-Bus activated in service + * mode. The D-Bus service file should invoke the executable with + * "--gapplication-service" as the sole commandline argument. This + * approach is suitable for use by most graphical applications but + * should not be used from applications like editors that need precise + * control over when processes invoked via the commandline will exit and + * what their exit status will be. + * + * Returns: the exit status * * Since: 2.28 **/ @@ -1270,23 +2222,38 @@ g_application_run (GApplication *application, { gchar **arguments; int status; - gint i; g_return_val_if_fail (G_IS_APPLICATION (application), 1); g_return_val_if_fail (argc == 0 || argv != NULL, 1); + g_return_val_if_fail (!application->priv->must_quit_now, 1); + +#ifdef G_OS_WIN32 + arguments = g_win32_get_command_line (); +#else + { + gint i; - arguments = g_new (gchar *, argc + 1); - for (i = 0; i < argc; i++) - arguments[i] = g_strdup (argv[i]); - arguments[i] = NULL; + arguments = g_new (gchar *, argc + 1); + for (i = 0; i < argc; i++) + arguments[i] = g_strdup (argv[i]); + arguments[i] = NULL; + } +#endif - if (g_get_prgname () == NULL && argc > 0) + if (g_get_prgname () == NULL) { - gchar *prgname; + if (application->priv->flags & G_APPLICATION_IS_SERVICE) + { + g_set_prgname (application->priv->id); + } + else if (argc > 0) + { + gchar *prgname; - prgname = g_path_get_basename (argv[0]); - g_set_prgname (prgname); - g_free (prgname); + prgname = g_path_get_basename (argv[0]); + g_set_prgname (prgname); + g_free (prgname); + } } if (!G_APPLICATION_GET_CLASS (application) @@ -1296,32 +2263,12 @@ g_application_run (GApplication *application, if (!g_application_register (application, NULL, &error)) { - g_printerr ("%s", error->message); + g_printerr ("Failed to register: %s\n", error->message); g_error_free (error); return 1; } - if (application->priv->is_remote) - { - GVariant *platform_data; - - platform_data = get_platform_data (application); - status = g_application_impl_command_line (application->priv->impl, - arguments, platform_data); - } - else - { - GApplicationCommandLine *cmdline; - GVariant *v; - - v = g_variant_new_bytestring_array ((const gchar **) arguments, -1); - cmdline = g_object_new (G_TYPE_APPLICATION_COMMAND_LINE, - "arguments", v, NULL); - g_signal_emit (application, - g_application_signals[SIGNAL_COMMAND_LINE], - 0, cmdline, &status); - g_object_unref (cmdline); - } + g_application_call_command_line (application, (const gchar **) arguments, NULL, &status); } g_strfreev (arguments); @@ -1335,16 +2282,24 @@ g_application_run (GApplication *application, g_timeout_add (10000, inactivity_timeout_expired, application); } - if (application->priv->use_count || - application->priv->inactivity_timeout_id) + while (application->priv->use_count || application->priv->inactivity_timeout_id) { - G_APPLICATION_GET_CLASS (application) - ->run_mainloop (application); + if (application->priv->must_quit_now) + break; + + g_main_context_iteration (NULL, TRUE); status = 0; } - - if (application->priv->is_registered) - g_signal_emit (application, g_application_signals[SIGNAL_SHUTDOWN], 0); + + if (application->priv->is_registered && !application->priv->is_remote) + { + g_signal_emit (application, g_application_signals[SIGNAL_SHUTDOWN], 0); + + if (!application->priv->did_shutdown) + g_critical ("GApplication subclass '%s' failed to chain up on" + " ::shutdown (from end of override function)", + G_OBJECT_TYPE_NAME (application)); + } if (application->priv->impl) g_application_impl_flush (application->priv->impl); @@ -1354,22 +2309,6 @@ g_application_run (GApplication *application, return status; } -static gboolean -g_application_has_action (GActionGroup *action_group, - const gchar *action_name) -{ - GApplication *application = G_APPLICATION (action_group); - - g_return_val_if_fail (application->priv->is_registered, FALSE); - - if (application->priv->remote_actions != NULL) - return g_hash_table_lookup (application->priv->remote_actions, - action_name) != NULL; - - return application->priv->actions && - g_action_group_has_action (application->priv->actions, action_name); -} - static gchar ** g_application_list_actions (GActionGroup *action_group) { @@ -1378,23 +2317,7 @@ g_application_list_actions (GActionGroup *action_group) g_return_val_if_fail (application->priv->is_registered, NULL); if (application->priv->remote_actions != NULL) - { - GHashTableIter iter; - gint n, i = 0; - gchar **keys; - gpointer key; - - n = g_hash_table_size (application->priv->remote_actions); - keys = g_new (gchar *, n + 1); - - g_hash_table_iter_init (&iter, application->priv->remote_actions); - while (g_hash_table_iter_next (&iter, &key, NULL)) - keys[i++] = g_strdup (key); - g_assert_cmpint (i, ==, n); - keys[n] = NULL; - - return keys; - } + return g_action_group_list_actions (G_ACTION_GROUP (application->priv->remote_actions)); else if (application->priv->actions != NULL) return g_action_group_list_actions (application->priv->actions); @@ -1405,164 +2328,345 @@ g_application_list_actions (GActionGroup *action_group) } static gboolean -g_application_get_action_enabled (GActionGroup *action_group, - const gchar *action_name) +g_application_query_action (GActionGroup *group, + const gchar *action_name, + gboolean *enabled, + const GVariantType **parameter_type, + const GVariantType **state_type, + GVariant **state_hint, + GVariant **state) { - GApplication *application = G_APPLICATION (action_group); + GApplication *application = G_APPLICATION (group); - g_return_val_if_fail (application->priv->remote_actions != NULL || - application->priv->actions != NULL, FALSE); g_return_val_if_fail (application->priv->is_registered, FALSE); - if (application->priv->remote_actions) - { - RemoteActionInfo *info; - - info = g_hash_table_lookup (application->priv->remote_actions, - action_name); + if (application->priv->remote_actions != NULL) + return g_action_group_query_action (G_ACTION_GROUP (application->priv->remote_actions), + action_name, + enabled, + parameter_type, + state_type, + state_hint, + state); - return info && info->enabled; - } + if (application->priv->actions != NULL) + return g_action_group_query_action (application->priv->actions, + action_name, + enabled, + parameter_type, + state_type, + state_hint, + state); - return g_action_group_get_action_enabled (application->priv->actions, - action_name); + return FALSE; } -static const GVariantType * -g_application_get_action_parameter_type (GActionGroup *action_group, - const gchar *action_name) +static void +g_application_change_action_state (GActionGroup *action_group, + const gchar *action_name, + GVariant *value) { GApplication *application = G_APPLICATION (action_group); - g_return_val_if_fail (application->priv->remote_actions != NULL || - application->priv->actions != NULL, NULL); - g_return_val_if_fail (application->priv->is_registered, NULL); + g_return_if_fail (application->priv->is_remote || + application->priv->actions != NULL); + g_return_if_fail (application->priv->is_registered); if (application->priv->remote_actions) - { - RemoteActionInfo *info; - - info = g_hash_table_lookup (application->priv->remote_actions, - action_name); - - if (info) - return info->parameter_type; - else - return NULL; - } + g_remote_action_group_change_action_state_full (application->priv->remote_actions, + action_name, value, get_platform_data (application, NULL)); - return g_action_group_get_action_parameter_type (application->priv->actions, - action_name); + else + g_action_group_change_action_state (application->priv->actions, action_name, value); } -static const GVariantType * -g_application_get_action_state_type (GActionGroup *action_group, - const gchar *action_name) +static void +g_application_activate_action (GActionGroup *action_group, + const gchar *action_name, + GVariant *parameter) { GApplication *application = G_APPLICATION (action_group); - g_return_val_if_fail (application->priv->remote_actions != NULL || - application->priv->actions != NULL, NULL); - g_return_val_if_fail (application->priv->is_registered, NULL); + g_return_if_fail (application->priv->is_remote || + application->priv->actions != NULL); + g_return_if_fail (application->priv->is_registered); if (application->priv->remote_actions) - { - RemoteActionInfo *info; + g_remote_action_group_activate_action_full (application->priv->remote_actions, + action_name, parameter, get_platform_data (application, NULL)); - info = g_hash_table_lookup (application->priv->remote_actions, - action_name); + else + g_action_group_activate_action (application->priv->actions, action_name, parameter); +} - if (info && info->state) - return g_variant_get_type (info->state); - else - return NULL; - } +static GAction * +g_application_lookup_action (GActionMap *action_map, + const gchar *action_name) +{ + GApplication *application = G_APPLICATION (action_map); + + g_return_val_if_fail (G_IS_ACTION_MAP (application->priv->actions), NULL); - return g_action_group_get_action_state_type (application->priv->actions, - action_name); + return g_action_map_lookup_action (G_ACTION_MAP (application->priv->actions), action_name); } -static GVariant * -g_application_get_action_state (GActionGroup *action_group, - const gchar *action_name) +static void +g_application_add_action (GActionMap *action_map, + GAction *action) { - GApplication *application = G_APPLICATION (action_group); + GApplication *application = G_APPLICATION (action_map); - g_return_val_if_fail (application->priv->remote_actions != NULL || - application->priv->actions != NULL, NULL); - g_return_val_if_fail (application->priv->is_registered, NULL); + g_return_if_fail (G_IS_ACTION_MAP (application->priv->actions)); - if (application->priv->remote_actions) - { - RemoteActionInfo *info; + g_action_map_add_action (G_ACTION_MAP (application->priv->actions), action); +} - info = g_hash_table_lookup (application->priv->remote_actions, - action_name); +static void +g_application_remove_action (GActionMap *action_map, + const gchar *action_name) +{ + GApplication *application = G_APPLICATION (action_map); - if (info && info->state) - return g_variant_ref (info->state); - else - return NULL; - } + g_return_if_fail (G_IS_ACTION_MAP (application->priv->actions)); - return g_action_group_get_action_state (application->priv->actions, - action_name); + g_action_map_remove_action (G_ACTION_MAP (application->priv->actions), action_name); } static void -g_application_change_action_state (GActionGroup *action_group, - const gchar *action_name, - GVariant *value) +g_application_action_group_iface_init (GActionGroupInterface *iface) { - GApplication *application = G_APPLICATION (action_group); + iface->list_actions = g_application_list_actions; + iface->query_action = g_application_query_action; + iface->change_action_state = g_application_change_action_state; + iface->activate_action = g_application_activate_action; +} - g_return_if_fail (application->priv->is_remote || - application->priv->actions != NULL); - g_return_if_fail (application->priv->is_registered); +static void +g_application_action_map_iface_init (GActionMapInterface *iface) +{ + iface->lookup_action = g_application_lookup_action; + iface->add_action = g_application_add_action; + iface->remove_action = g_application_remove_action; +} - if (application->priv->is_remote) - g_application_impl_change_action_state (application->priv->impl, - action_name, value, - get_platform_data (application)); +/* Default Application {{{1 */ - else - g_action_group_change_action_state (application->priv->actions, - action_name, value); +static GApplication *default_app; + +/** + * g_application_get_default: + * + * Returns the default #GApplication instance for this process. + * + * Normally there is only one #GApplication per process and it becomes + * the default when it is created. You can exercise more control over + * this by using g_application_set_default(). + * + * If there is no default application then %NULL is returned. + * + * Returns: (transfer none): the default application for this process, or %NULL + * + * Since: 2.32 + **/ +GApplication * +g_application_get_default (void) +{ + return default_app; } -static void -g_application_activate_action (GActionGroup *action_group, - const gchar *action_name, - GVariant *parameter) +/** + * g_application_set_default: + * @application: (allow-none): the application to set as default, or %NULL + * + * Sets or unsets the default application for the process, as returned + * by g_application_get_default(). + * + * This function does not take its own reference on @application. If + * @application is destroyed then the default application will revert + * back to %NULL. + * + * Since: 2.32 + **/ +void +g_application_set_default (GApplication *application) { - GApplication *application = G_APPLICATION (action_group); + default_app = application; +} - g_return_if_fail (application->priv->is_remote || - application->priv->actions != NULL); - g_return_if_fail (application->priv->is_registered); +/** + * g_application_quit: + * @application: a #GApplication + * + * Immediately quits the application. + * + * Upon return to the mainloop, g_application_run() will return, + * calling only the 'shutdown' function before doing so. + * + * The hold count is ignored. + * + * The result of calling g_application_run() again after it returns is + * unspecified. + * + * Since: 2.32 + **/ +void +g_application_quit (GApplication *application) +{ + g_return_if_fail (G_IS_APPLICATION (application)); - if (application->priv->is_remote) - g_application_impl_activate_action (application->priv->impl, - action_name, parameter, - get_platform_data (application)); + application->priv->must_quit_now = TRUE; +} - else - g_action_group_activate_action (application->priv->actions, - action_name, parameter); +/** + * g_application_mark_busy: + * @application: a #GApplication + * + * Increases the busy count of @application. + * + * Use this function to indicate that the application is busy, for instance + * while a long running operation is pending. + * + * The busy state will be exposed to other processes, so a session shell will + * use that information to indicate the state to the user (e.g. with a + * spinner). + * + * To cancel the busy indication, use g_application_unmark_busy(). + * + * Since: 2.38 + **/ +void +g_application_mark_busy (GApplication *application) +{ + gboolean was_busy; + + g_return_if_fail (G_IS_APPLICATION (application)); + + was_busy = (application->priv->busy_count > 0); + application->priv->busy_count++; + + if (!was_busy) + g_application_impl_set_busy_state (application->priv->impl, TRUE); } -static void -g_application_action_group_iface_init (GActionGroupInterface *iface) +/** + * g_application_unmark_busy: + * @application: a #GApplication + * + * Decreases the busy count of @application. + * + * When the busy count reaches zero, the new state will be propagated + * to other processes. + * + * This function must only be called to cancel the effect of a previous + * call to g_application_mark_busy(). + * + * Since: 2.38 + **/ +void +g_application_unmark_busy (GApplication *application) { - iface->has_action = g_application_has_action; - iface->list_actions = g_application_list_actions; + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (application->priv->busy_count > 0); - iface->get_action_enabled = g_application_get_action_enabled; - iface->get_action_parameter_type = g_application_get_action_parameter_type; - iface->get_action_state_type = g_application_get_action_state_type; - iface->get_action_state = g_application_get_action_state; - iface->change_action_state = g_application_change_action_state; - iface->activate_action = g_application_activate_action; + application->priv->busy_count--; + + if (application->priv->busy_count == 0) + g_application_impl_set_busy_state (application->priv->impl, FALSE); +} + +/* Notifications {{{1 */ + +/** + * g_application_send_notification: + * @application: a #GApplication + * @id: (allow-none): id of the notification, or %NULL + * @notification: the #GNotification to send + * + * Sends a notification on behalf of @application to the desktop shell. + * There is no guarantee that the notification is displayed immediately, + * or even at all. + * + * Notifications may persist after the application exits. It will be + * D-Bus-activated when the notification or one of its actions is + * activated. + * + * Modifying @notification after this call has no effect. However, the + * object can be reused for a later call to this function. + * + * @id may be any string that uniquely identifies the event for the + * application. It does not need to be in any special format. For + * example, "new-message" might be appropriate for a notification about + * new messages. + * + * If a previous notification was sent with the same @id, it will be + * replaced with @notification and shown again as if it was a new + * notification. This works even for notifications sent from a previous + * execution of the application, as long as @id is the same string. + * + * @id may be %NULL, but it is impossible to replace or withdraw + * notifications without an id. + * + * If @notification is no longer relevant, it can be withdrawn with + * g_application_withdraw_notification(). + * + * Since: 2.40 + */ +void +g_application_send_notification (GApplication *application, + const gchar *id, + GNotification *notification) +{ + gchar *generated_id = NULL; + + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (G_IS_NOTIFICATION (notification)); + g_return_if_fail (g_application_get_is_registered (application)); + g_return_if_fail (!g_application_get_is_remote (application)); + + if (application->priv->notifications == NULL) + application->priv->notifications = g_notification_backend_new_default (application); + + if (id == NULL) + { + generated_id = g_dbus_generate_guid (); + id = generated_id; + } + + g_notification_backend_send_notification (application->priv->notifications, id, notification); + + g_free (generated_id); +} + +/** + * g_application_withdraw_notification: + * @application: a #GApplication + * @id: id of a previously sent notification + * + * Withdraws a notification that was sent with + * g_application_send_notification(). + * + * This call does nothing if a notification with @id doesn't exist or + * the notification was never sent. + * + * This function works even for notifications sent in previous + * executions of this application, as long @id is the same as it was for + * the sent notification. + * + * Note that notifications are dismissed when the user clicks on one + * of the buttons in a notification or triggers its default action, so + * there is no need to explicitly withdraw the notification in that case. + * + * Since: 2.40 + */ +void +g_application_withdraw_notification (GApplication *application, + const gchar *id) +{ + g_return_if_fail (G_IS_APPLICATION (application)); + g_return_if_fail (id != NULL); + + if (application->priv->notifications) + g_notification_backend_withdraw_notification (application->priv->notifications, id); } /* Epilogue {{{1 */