diff options
| -rw-r--r-- | src/session-service.c | 265 |
1 files changed, 258 insertions, 7 deletions
diff --git a/src/session-service.c b/src/session-service.c index 65d8837..b135371 100644 --- a/src/session-service.c +++ b/src/session-service.c @@ -24,6 +24,8 @@ with this program. If not, see <http://www.gnu.org/licenses/>. #include <config.h> +#include <unistd.h> + #include <glib/gi18n.h> #include <dbus/dbus-glib.h> @@ -47,6 +49,22 @@ with this program. If not, see <http://www.gnu.org/licenses/>. #define GUEST_SESSION_LAUNCHER "/usr/share/gdm/guest-session/guest-session-launch" +typedef struct _ActivateData ActivateData; +struct _ActivateData +{ + UsersServiceDbus *service; + UserData *user; +}; + +static DBusGConnection *system_bus = NULL; +static DBusGProxy *gdm_proxy = NULL; +static UsersServiceDbus *dbus_interface = NULL; + +static DbusmenuMenuitem *lock_menuitem = NULL; + +static gint count; +static GList *users; + static DbusmenuMenuitem * root_menuitem = NULL; static GMainLoop * mainloop = NULL; static DBusGProxy * dkp_main_proxy = NULL; @@ -73,7 +91,7 @@ sleep_response (DBusGProxy * proxy, DBusGProxyCall * call, gpointer data) /* Let's put this machine to sleep, with some info on how it should sleep. */ static void -sleep (DbusmenuMenuitem * mi, gpointer userdata) +machine_sleep (DbusmenuMenuitem * mi, gpointer userdata) { gchar * type = (gchar *)userdata; @@ -245,10 +263,189 @@ show_dialog (DbusmenuMenuitem * mi, gchar * type) return; } -/* This function creates all of the menuitems that the service - provides in the UI. It also connects them to the callbacks. */ +/* Respond to the signal of autologin changing to see if the + setting for timed login changes. */ +static void +gdm_settings_change (void) +{ + if (!will_lock_screen()) { + dbusmenu_menuitem_property_set_bool(lock_menuitem, DBUSMENU_MENUITEM_PROP_SENSITIVE, FALSE); + } else { + dbusmenu_menuitem_property_set_bool(lock_menuitem, DBUSMENU_MENUITEM_PROP_SENSITIVE, TRUE); + } + + return; +} + +/* Checks to see if we should show the guest suession item */ +static gboolean +check_guest_session (void) +{ + if (geteuid() < 500) { + /* System users shouldn't have guest account shown. Mosly + this would be the case of the guest user itself. */ + return FALSE; + } + if (!g_file_test(GUEST_SESSION_LAUNCHER, G_FILE_TEST_IS_EXECUTABLE)) { + /* It doesn't appear that the Guest session stuff is + installed. So let's not use it then! */ + return FALSE; + } + + return TRUE; +} + +/* Called when someone clicks on the guest session item. */ +static void +activate_guest_session (DbusmenuMenuitem * mi, gpointer user_data) +{ + GError * error = NULL; + if (!g_spawn_command_line_async(GUEST_SESSION_LAUNCHER, &error)) { + g_warning("Unable to start guest session: %s", error->message); + g_error_free(error); + } + + return; +} + +/* Checks to see if we can create sessions and get a proxy + to the display manager (GDM) */ +static gboolean +check_new_session (void) +{ + if (system_bus == NULL) { + system_bus = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL); + } + + if (system_bus == NULL) { + return FALSE; + } + + if (gdm_proxy == NULL) { + gdm_proxy = dbus_g_proxy_new_for_name(system_bus, + "org.gnome.DisplayManager", + "/org/gnome/DisplayManager/LocalDisplayFactory", + "org.gnome.DisplayManager.LocalDisplayFactory"); + } + + if (gdm_proxy == NULL) { + return FALSE; + } + + return TRUE; +} + +/* Starts a new generic session */ +static void +activate_new_session (DbusmenuMenuitem * mi, gpointer user_data) +{ + GError * error = NULL; + if (!g_spawn_command_line_async("gdmflexiserver --startnew", &error)) { + g_warning("Unable to start new session: %s", error->message); + g_error_free(error); + } + + return; +} + +/* Activates a session for a particular user. */ +static void +activate_user_session (DbusmenuMenuitem *mi, gpointer user_data) +{ + UserData *user = (UserData *)user_data; + UsersServiceDbus *service = user->service; + + users_service_dbus_activate_user_session (service, user); +} + +/* Comparison function to look into the UserData struct + to compare by using the username value */ +static gint +compare_users_by_username (const gchar *a, + const gchar *b) +{ + UserData *user1 = (UserData *)a; + UserData *user2 = (UserData *)b; + + return g_strcmp0 (user1->user_name, user2->user_name); +} + +/* Builds up the menu for us */ static void -create_items (DbusmenuMenuitem * root) { +rebuild_items (DbusmenuMenuitem *root, + UsersServiceDbus *service) +{ + DbusmenuMenuitem *mi = NULL; + GList *u; + UserData *user; + gboolean can_activate; + GList *children; + + can_activate = users_service_dbus_can_activate_session (service); + + children = dbusmenu_menuitem_take_children (root); + g_list_foreach (children, (GFunc)g_object_unref, NULL); + g_list_free (children); + + lock_menuitem = dbusmenu_menuitem_new(); + dbusmenu_menuitem_property_set(lock_menuitem, DBUSMENU_MENUITEM_PROP_LABEL, _("Lock Screen")); + g_signal_connect(G_OBJECT(lock_menuitem), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(lock_screen), NULL); + dbusmenu_menuitem_child_append(root, lock_menuitem); + if (!will_lock_screen()) { + dbusmenu_menuitem_property_set_bool(lock_menuitem, DBUSMENU_MENUITEM_PROP_SENSITIVE, FALSE); + } else { + dbusmenu_menuitem_property_set_bool(lock_menuitem, DBUSMENU_MENUITEM_PROP_SENSITIVE, TRUE); + } + + if (can_activate == TRUE) + { + if (check_guest_session ()) + { + mi = dbusmenu_menuitem_new (); + dbusmenu_menuitem_property_set (mi, DBUSMENU_MENUITEM_PROP_LABEL, _("Guest Session")); + dbusmenu_menuitem_child_append (root, mi); + g_signal_connect (G_OBJECT (mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK (activate_guest_session), NULL); + } + + if (count > MINIMUM_USERS && count < MAXIMUM_USERS) + { + if (users != NULL) + { + GList *l = NULL; + + for (l = users; l != NULL; l = l->next) + { + users = g_list_delete_link (users, l); + } + + users = NULL; + } + + users = users_service_dbus_get_user_list (service); + + users = g_list_sort (users, (GCompareFunc)compare_users_by_username); + + for (u = users; u != NULL; u = g_list_next (u)) + { + user = u->data; + + user->service = service; + + mi = dbusmenu_menuitem_new (); + dbusmenu_menuitem_property_set (mi, DBUSMENU_MENUITEM_PROP_LABEL, user->real_name); + dbusmenu_menuitem_child_append (root, mi); + g_signal_connect (G_OBJECT (mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK (activate_user_session), user); + } + } + + if (check_new_session ()) + { + mi = dbusmenu_menuitem_new (); + dbusmenu_menuitem_property_set (mi, DBUSMENU_MENUITEM_PROP_LABEL, _("Switch User...")); + dbusmenu_menuitem_child_append (root, mi); + g_signal_connect (G_OBJECT (mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK (activate_new_session), NULL); + } + } logout_mi = dbusmenu_menuitem_new(); if (supress_confirmations()) { @@ -263,13 +460,13 @@ create_items (DbusmenuMenuitem * root) { dbusmenu_menuitem_property_set_bool(suspend_mi, DBUSMENU_MENUITEM_PROP_VISIBLE, FALSE); dbusmenu_menuitem_property_set(suspend_mi, DBUSMENU_MENUITEM_PROP_LABEL, _("Suspend")); dbusmenu_menuitem_child_append(root, suspend_mi); - g_signal_connect(G_OBJECT(suspend_mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(sleep), "Suspend"); + g_signal_connect(G_OBJECT(suspend_mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(machine_sleep), "Suspend"); hibernate_mi = dbusmenu_menuitem_new(); dbusmenu_menuitem_property_set_bool(hibernate_mi, DBUSMENU_MENUITEM_PROP_VISIBLE, FALSE); dbusmenu_menuitem_property_set(hibernate_mi, DBUSMENU_MENUITEM_PROP_LABEL, _("Hibernate")); dbusmenu_menuitem_child_append(root, hibernate_mi); - g_signal_connect(G_OBJECT(hibernate_mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(sleep), "Hibernate"); + g_signal_connect(G_OBJECT(hibernate_mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(machine_sleep), "Hibernate"); restart_mi = dbusmenu_menuitem_new(); if (supress_confirmations()) { @@ -299,6 +496,47 @@ create_items (DbusmenuMenuitem * root) { return; } +/* Signal called when a user is added. It updates the count and + rebuilds the menu */ +static void +user_added (UsersServiceDbus *service, + UserData *user, + gpointer user_data) +{ + DbusmenuMenuitem *root = (DbusmenuMenuitem *)user_data; + + count++; + + rebuild_items (root, service); +} + +/* Signal called when a user is deleted. It updates the count and + rebuilds the menu */ +static void +user_removed (UsersServiceDbus *service, + UserData *user, + gpointer user_data) +{ + DbusmenuMenuitem *root = (DbusmenuMenuitem *)user_data; + + count--; + + rebuild_items (root, service); +} + +/* Wrapper around rebuild_items that is used on the first call + so that we can initialize the count variable. */ +static void +create_items (DbusmenuMenuitem *root, + UsersServiceDbus *service) +{ + g_return_if_fail (IS_USERS_SERVICE_DBUS (service)); + + count = users_service_dbus_get_user_count (service); + + rebuild_items (root, service); +} + /* When the service interface starts to shutdown, we should follow it. */ void @@ -331,11 +569,24 @@ main (int argc, char ** argv) G_CALLBACK(service_shutdown), NULL); g_idle_add(lock_screen_setup, NULL); + lock_screen_gdm_cb_set(gdm_settings_change); root_menuitem = dbusmenu_menuitem_new(); g_debug("Root ID: %d", dbusmenu_menuitem_get_id(root_menuitem)); - create_items(root_menuitem); + dbus_interface = g_object_new (USERS_SERVICE_DBUS_TYPE, NULL); + + create_items (root_menuitem, dbus_interface); + + g_signal_connect (G_OBJECT (dbus_interface), + "user-added", + G_CALLBACK (user_added), + root_menuitem); + g_signal_connect (G_OBJECT (dbus_interface), + "user-removed", + G_CALLBACK (user_removed), + root_menuitem); + setup_dkp(); DbusmenuServer * server = dbusmenu_server_new(INDICATOR_SESSION_DBUS_OBJECT); |