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authorTed Gould <ted@gould.cx>2013-08-27 12:55:22 -0500
committerTed Gould <ted@gould.cx>2013-08-27 12:55:22 -0500
commitc440b9d6a1737e3be03e205e32fec64ebdfcb2df (patch)
treeb74867b600c41ff03ed87565eae38d2daaa47d5f /src/session-menu-mgr.c
parent4661ef2d0a834509194d069466e3905aece05183 (diff)
parentb7a8f35077f950dc6dab640e759341c1c2476f5c (diff)
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Merging trunk
Diffstat (limited to 'src/session-menu-mgr.c')
-rw-r--r--src/session-menu-mgr.c1329
1 files changed, 0 insertions, 1329 deletions
diff --git a/src/session-menu-mgr.c b/src/session-menu-mgr.c
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@@ -1,1329 +0,0 @@
-/*
-Copyright 2011 Canonical Ltd.
-
-Authors:
- Charles Kerr <charles.kerr@canonical.com>
- Conor Curran <conor.curran@canonical.com>
-
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License version 3, as published
-by the Free Software Foundation.
-
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranties of
-MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "config.h"
-
-#include <sys/types.h>
-#include <pwd.h> /* geteuid(), getpwuid() */
-
-#include <glib.h>
-#include <glib/gi18n.h>
-
-#include <libdbusmenu-glib/client.h>
-#include <libdbusmenu-gtk/menuitem.h>
-
-#include "dbus-login1-manager.h"
-#include "session-menu-mgr.h"
-#include "shared-names.h"
-#include "users-service-dbus.h"
-#include "online-accounts-mgr.h"
-
-#define DEBUG_SHOW_ALL FALSE
-
-#define LOGIN1_MANAGER_ADDRESS "org.freedesktop.login1"
-#define LOGIN1_MANAGER_PATH "/org/freedesktop/login1"
-
-#define CMD_HELP "yelp"
-#define CMD_INFO "gnome-control-center info"
-#define CMD_SYSTEM_SETTINGS "gnome-control-center"
-#ifdef HAVE_GTKLOGOUTHELPER
- #define HAVE_RESTART_CMD TRUE
- #define CMD_RESTART LIBEXECDIR"/gtk-logout-helper --restart"
- #define CMD_LOGOUT LIBEXECDIR"/gtk-logout-helper --logout"
- #define CMD_SHUTDOWN LIBEXECDIR"/gtk-logout-helper --shutdown"
-#else
- #define HAVE_RESTART_CMD FALSE /* hmm, no gnome-session-quit --restart? */
- #define CMD_RESTART ""
- #define CMD_LOGOUT "gnome-session-quit --logout"
- #define CMD_SHUTDOWN "gnome-session-quit --power-off"
-#endif
-
-/**
- * Which switch menuitem to show -- based on lockdown settings,
- * greeter mode, number of users in the system, and so on.
- * See get_switcher_mode()
- */
-typedef enum
-{
- SWITCHER_MODE_SCREENSAVER,
- SWITCHER_MODE_LOCK,
- SWITCHER_MODE_SWITCH,
- SWITCHER_MODE_SWITCH_OR_LOCK,
- SWITCHER_MODE_NONE
-}
-SwitcherMode;
-
-/**
- * Creates and manages the menumodel and associated actions for the
- * session menu described at <https://wiki.ubuntu.com/SystemMenu>.
- *
- * This is a pretty straightforward class: it creates the menumodel
- * and listens for events that can affect the model's properties.
- *
- * Simple event sources, such as GSettings and a logind DBus proxy,
- * are handled here. More involved event sources are delegated to the
- * UsersServiceDBus facade class.
- */
-struct _SessionMenuMgr
-{
- GObject parent_instance;
-
- DbusmenuMenuitem * top_mi;
- DbusmenuMenuitem * screensaver_mi;
- DbusmenuMenuitem * lock_mi;
- DbusmenuMenuitem * lock_switch_mi;
- DbusmenuMenuitem * guest_mi;
- DbusmenuMenuitem * online_accounts_mi;
- DbusmenuMenuitem * logout_mi;
- DbusmenuMenuitem * suspend_mi;
- DbusmenuMenuitem * hibernate_mi;
- DbusmenuMenuitem * restart_mi;
- DbusmenuMenuitem * shutdown_mi;
-
- GSList * user_menuitems;
- gint user_menuitem_index;
-
- GSettings * lockdown_settings;
- GSettings * indicator_settings;
- GSettings * keybinding_settings;
-
- /* cached settings taken from the logind proxy */
- gboolean can_hibernate;
- gboolean can_suspend;
-
- gboolean shell_mode;
- gboolean greeter_mode;
-
- guint shell_name_watcher;
- GCancellable * cancellable;
- Login1Manager * login1_manager_proxy;
- SessionDbus * session_dbus;
- UsersServiceDbus * users_dbus_facade;
- OnlineAccountsMgr * online_accounts_mgr;
-};
-
-static SwitcherMode get_switcher_mode (SessionMenuMgr *);
-
-static void init_login1_proxy (SessionMenuMgr *);
-static void init_shell_watcher (SessionMenuMgr *);
-
-static void update_screensaver_shortcut (SessionMenuMgr *);
-static void update_user_menuitems (SessionMenuMgr *);
-static void update_session_menuitems (SessionMenuMgr *);
-static void update_confirmation_labels (SessionMenuMgr *);
-
-static void action_func_lock (SessionMenuMgr *);
-static void action_func_suspend (SessionMenuMgr *);
-static void action_func_hibernate (SessionMenuMgr *);
-static void action_func_shutdown (SessionMenuMgr *);
-static void action_func_reboot (SessionMenuMgr *);
-static void action_func_logout (SessionMenuMgr *);
-static void action_func_switch_to_lockscreen (SessionMenuMgr *);
-static void action_func_switch_to_greeter (SessionMenuMgr *);
-static void action_func_switch_to_guest (SessionMenuMgr *);
-static void action_func_switch_to_user (AccountsUser *);
-static void action_func_spawn_async (const char * cmd);
-
-static gboolean is_this_guest_session (void);
-static gboolean is_this_live_session (void);
-
-static void on_guest_logged_in_changed (UsersServiceDbus *,
- SessionMenuMgr *);
-
-static void on_user_logged_in_changed (UsersServiceDbus *,
- AccountsUser *,
- SessionMenuMgr *);
-
-/**
-*** GObject init / dispose
-**/
-
-G_DEFINE_TYPE (SessionMenuMgr, session_menu_mgr, G_TYPE_OBJECT);
-
-static void
-session_menu_mgr_init (SessionMenuMgr *mgr)
-{
- mgr->top_mi = dbusmenu_menuitem_new ();
-
- /* Lockdown settings */
- GSettings * s = g_settings_new ("org.gnome.desktop.lockdown");
- g_signal_connect_swapped (s, "changed::disable-log-out",
- G_CALLBACK(update_session_menuitems), mgr);
- g_signal_connect_swapped (s, "changed::disable-lock-screen",
- G_CALLBACK(update_user_menuitems), mgr);
- g_signal_connect_swapped (s, "changed::disable-user-switching",
- G_CALLBACK(update_user_menuitems), mgr);
- mgr->lockdown_settings = s;
-
- /* Indicator settings */
- s = g_settings_new ("com.canonical.indicator.session");
- g_signal_connect_swapped (s, "changed::suppress-logout-restart-shutdown",
- G_CALLBACK(update_confirmation_labels), mgr);
- g_signal_connect_swapped (s, "changed::suppress-logout-restart-shutdown",
- G_CALLBACK(update_session_menuitems), mgr);
- g_signal_connect_swapped (s, "changed::suppress-logout-menuitem",
- G_CALLBACK(update_session_menuitems), mgr);
- g_signal_connect_swapped (s, "changed::suppress-restart-menuitem",
- G_CALLBACK(update_session_menuitems), mgr);
- g_signal_connect_swapped (s, "changed::suppress-shutdown-menuitem",
- G_CALLBACK(update_session_menuitems), mgr);
- mgr->indicator_settings = s;
-
- /* Keybinding settings */
- s = g_settings_new ("org.gnome.settings-daemon.plugins.media-keys");
- g_signal_connect_swapped (s, "changed::screensaver",
- G_CALLBACK(update_screensaver_shortcut), mgr);
- mgr->keybinding_settings = s;
-
- /* listen for user events */
- mgr->users_dbus_facade = g_object_new (USERS_SERVICE_DBUS_TYPE, NULL);
- g_signal_connect_swapped (mgr->users_dbus_facade, "user-list-changed",
- G_CALLBACK (update_user_menuitems), mgr);
- g_signal_connect (mgr->users_dbus_facade, "user-logged-in-changed",
- G_CALLBACK(on_user_logged_in_changed), mgr);
- g_signal_connect (mgr->users_dbus_facade, "guest-logged-in-changed",
- G_CALLBACK(on_guest_logged_in_changed), mgr);
-
- init_login1_proxy (mgr);
- init_shell_watcher (mgr);
-
- /* Online accounts menu item */
- mgr->online_accounts_mgr = online_accounts_mgr_new ();
-}
-
-static void
-session_menu_mgr_dispose (GObject *object)
-{
- SessionMenuMgr * mgr = SESSION_MENU_MGR (object);
-
- if (mgr->cancellable != NULL)
- {
- g_cancellable_cancel (mgr->cancellable);
- g_clear_object (&mgr->cancellable);
- }
-
- g_clear_object (&mgr->indicator_settings);
- g_clear_object (&mgr->lockdown_settings);
- g_clear_object (&mgr->keybinding_settings);
- g_clear_object (&mgr->login1_manager_proxy);
- g_clear_object (&mgr->users_dbus_facade);
- g_clear_object (&mgr->top_mi);
- g_clear_object (&mgr->session_dbus);
- g_clear_object (&mgr->online_accounts_mgr);
-
- g_slist_free (mgr->user_menuitems);
- mgr->user_menuitems = NULL;
-
- if (mgr->shell_name_watcher)
- {
- g_bus_unwatch_name (mgr->shell_name_watcher);
- }
-
- G_OBJECT_CLASS (session_menu_mgr_parent_class)->dispose (object);
-}
-
-static void
-session_menu_mgr_class_init (SessionMenuMgrClass * klass)
-{
- GObjectClass* object_class = G_OBJECT_CLASS (klass);
- object_class->dispose = session_menu_mgr_dispose;
-}
-
-static gboolean
-can_perform_operation (gchar * permission)
-{
- return g_strcmp0 ("yes", permission) == 0;
-}
-
-static void
-init_login1_proxy (SessionMenuMgr * mgr)
-{
- /* default values */
- mgr->can_suspend = TRUE;
- mgr->can_hibernate = TRUE;
-
- gchar * can_suspend;
- gchar * can_hibernate;
-
- mgr->cancellable = g_cancellable_new ();
-
- GError * error = NULL;
- mgr->login1_manager_proxy = login1_manager_proxy_new_for_bus_sync (
- G_BUS_TYPE_SYSTEM,
- G_DBUS_PROXY_FLAGS_NONE,
- LOGIN1_MANAGER_ADDRESS,
- LOGIN1_MANAGER_PATH,
- NULL,
- &error);
- if (error != NULL)
- {
- g_warning ("Error creating logind proxy: %s", error->message);
- g_clear_error (&error);
- }
- else
- {
- login1_manager_call_can_suspend_sync (mgr->login1_manager_proxy,
- &can_suspend,
- NULL,
- &error);
- if (error != NULL)
- {
- g_warning ("%s: %s", G_STRFUNC, error->message);
- g_clear_error (&error);
- }
- else
- {
- mgr->can_suspend = can_perform_operation (can_suspend);
- }
-
- login1_manager_call_can_hibernate_sync (mgr->login1_manager_proxy,
- &can_hibernate,
- NULL,
- &error);
- if (error != NULL)
- {
- g_warning ("%s: %s", G_STRFUNC, error->message);
- g_clear_error (&error);
- }
- else
- {
- mgr->can_hibernate = can_perform_operation (can_hibernate);
- }
-
- }
-}
-
-static void
-on_shell_name_appeared (GDBusConnection *connection, const gchar *name,
- const gchar *name_owner, gpointer user_data)
-{
- SessionMenuMgr * mgr = SESSION_MENU_MGR(user_data);
-
- g_debug("Shell appeared");
- mgr->shell_mode = TRUE;
- update_session_menuitems (mgr);
-}
-
-static void
-on_shell_name_vanished (GDBusConnection *connection, const gchar *name, gpointer user_data)
-{
- SessionMenuMgr * mgr = SESSION_MENU_MGR(user_data);
-
- g_debug("Shell vanished");
- mgr->shell_mode = FALSE;
- update_session_menuitems (mgr);
-}
-
-static void
-init_shell_watcher (SessionMenuMgr * mgr)
-{
- mgr->shell_name_watcher = g_bus_watch_name (G_BUS_TYPE_SESSION, "org.gnome.Shell",
- G_BUS_NAME_WATCHER_FLAGS_NONE,
- on_shell_name_appeared,
- on_shell_name_vanished,
- mgr, NULL);
-}
-
-/***
-**** Menuitem Helpers
-***/
-
-static inline void
-mi_set_label (DbusmenuMenuitem * mi, const char * str)
-{
- dbusmenu_menuitem_property_set (mi, DBUSMENU_MENUITEM_PROP_LABEL, str);
-}
-
-static inline void
-mi_set_type (DbusmenuMenuitem * mi, const char * str)
-{
- dbusmenu_menuitem_property_set (mi, DBUSMENU_MENUITEM_PROP_TYPE, str);
-}
-
-static inline void
-mi_set_visible (DbusmenuMenuitem * mi, gboolean b)
-{
- dbusmenu_menuitem_property_set_bool (mi, DBUSMENU_MENUITEM_PROP_VISIBLE,
- b || DEBUG_SHOW_ALL);
-}
-
-static inline void
-mi_set_logged_in (DbusmenuMenuitem * mi, gboolean b)
-{
- dbusmenu_menuitem_property_set_bool (mi, USER_ITEM_PROP_LOGGED_IN, b);
-}
-
-static DbusmenuMenuitem*
-mi_new_separator (void)
-{
- DbusmenuMenuitem * mi = dbusmenu_menuitem_new ();
- mi_set_type (mi, DBUSMENU_CLIENT_TYPES_SEPARATOR);
- return mi;
-}
-
-static DbusmenuMenuitem*
-mi_new (const char * label)
-{
- DbusmenuMenuitem * mi = dbusmenu_menuitem_new ();
- mi_set_label (mi, label);
- return mi;
-}
-
-static void
-check_online_accounts_status (SessionMenuMgr * mgr, DbusmenuMenuitem * mi)
-{
- const gchar *disposition;
- gboolean on_alert;
-
- disposition =
- dbusmenu_menuitem_property_get (mi, DBUSMENU_MENUITEM_PROP_DISPOSITION);
- on_alert = g_strcmp0 (disposition, DBUSMENU_MENUITEM_DISPOSITION_ALERT) == 0;
-
- mi_set_visible (mi, on_alert);
-}
-
-static void
-on_online_accounts_changed (SessionMenuMgr * mgr, const gchar * property,
- GVariant *value, DbusmenuMenuitem *mi)
-{
- if (g_strcmp0 (property, DBUSMENU_MENUITEM_PROP_DISPOSITION) == 0)
- {
- check_online_accounts_status(mgr, mi);
- }
-}
-
-/***
-**** Admin Menuitems
-**** <https://wiki.ubuntu.com/SystemMenu#Admin_items>
-***/
-
-static void
-build_admin_menuitems (SessionMenuMgr * mgr)
-{
- if (!mgr->greeter_mode)
- {
- DbusmenuMenuitem * mi;
- const gboolean show_settings = !mgr->greeter_mode;
-
- mi = mi_new (_("About This Computer"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_spawn_async), CMD_INFO);
-
- mi = mi_new (_("Ubuntu Help"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_spawn_async), CMD_HELP);
-
- mi = mi_new_separator ();
- mi_set_visible (mi, show_settings);
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
-
- mi = mi_new (_("System Settings\342\200\246"));
- mi_set_visible (mi, show_settings);
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_spawn_async),
- CMD_SYSTEM_SETTINGS);
-
- mi = mgr->online_accounts_mi =
- online_accounts_mgr_get_menu_item (mgr->online_accounts_mgr);
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_PROPERTY_CHANGED,
- G_CALLBACK(on_online_accounts_changed),
- mgr);
- check_online_accounts_status (mgr, mi);
-
- mi = mi_new_separator ();
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- }
-}
-
-/***
-**** Session Menuitems
-**** <https://wiki.ubuntu.com/SystemMenu#Session_items>
-***/
-
-static void
-update_session_menuitems (SessionMenuMgr * mgr)
-{
- gboolean v;
- GSettings * s = mgr->indicator_settings;
-
- v = !mgr->greeter_mode
- && !is_this_live_session()
- && !g_settings_get_boolean (mgr->lockdown_settings, "disable-log-out")
- && !g_settings_get_boolean (s, "suppress-logout-menuitem");
- mi_set_visible (mgr->logout_mi, v);
-
- mi_set_visible (mgr->suspend_mi, mgr->can_suspend);
-
- mi_set_visible (mgr->hibernate_mi, mgr->can_hibernate);
-
- v = (!mgr->shell_mode || g_settings_get_boolean (s, "suppress-logout-restart-shutdown"))
- && (HAVE_RESTART_CMD || mgr->shell_mode)
- && !g_settings_get_boolean (s, "suppress-restart-menuitem");
- mi_set_visible (mgr->restart_mi, v);
-
- v = !g_settings_get_boolean (s, "suppress-shutdown-menuitem");
- mi_set_visible (mgr->shutdown_mi, v);
-}
-
-/* Update the ellipses when the confirmation setting changes.
- *
- * <http://developer.gnome.org/hig-book/3.0/menus-design.html.en>:
- * "Label the menu item with a trailing ellipsis ("...") only if the
- * command requires further input from the user before it can be performed."
- */
-static void
-update_confirmation_labels (SessionMenuMgr * mgr)
-{
- const gboolean confirm_needed = !g_settings_get_boolean (
- mgr->indicator_settings,
- "suppress-logout-restart-shutdown");
-
- mi_set_label (mgr->logout_mi, confirm_needed ? _("Log Out\342\200\246")
- : _("Log Out"));
-
- mi_set_label (mgr->shutdown_mi, confirm_needed ? _("Shut Down\342\200\246")
- : _("Shut Down"));
-
- mi_set_label (mgr->restart_mi, confirm_needed ? _("Restart\342\200\246")
- : _("Restart"));
-}
-
-static void
-build_session_menuitems (SessionMenuMgr* mgr)
-{
- DbusmenuMenuitem * mi;
-
- mi = mgr->logout_mi = mi_new (_("Log Out\342\200\246"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_logout), mgr);
-
- mi = mgr->suspend_mi = mi_new (_("Suspend"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_suspend), mgr);
-
- mi = mgr->hibernate_mi = mi_new (_("Hibernate"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_hibernate), mgr);
-
- mi = mgr->restart_mi = mi_new (_("Restart\342\200\246"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_reboot), mgr);
-
- mi = mgr->shutdown_mi = mi_new (_("Shut Down\342\200\246"));
- dbusmenu_menuitem_child_append (mgr->top_mi, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK(action_func_shutdown), mgr);
-
- update_confirmation_labels (mgr);
- update_session_menuitems (mgr);
-}
-
-/****
-***** User Menuitems
-***** https://wiki.ubuntu.com/SystemMenu#Account-switching_items
-****/
-
-/* Local extensions to AccountsUser */
-
-static GQuark
-get_menuitem_quark (void)
-{
- static GQuark q = 0;
-
- if (G_UNLIKELY(!q))
- {
- q = g_quark_from_static_string ("menuitem");
- }
-
- return q;
-}
-
-static DbusmenuMenuitem*
-user_get_menuitem (AccountsUser * user)
-{
- return g_object_get_qdata (G_OBJECT(user), get_menuitem_quark());
-}
-
-static void
-user_clear_menuitem (AccountsUser * user)
-{
- g_object_steal_qdata (G_OBJECT(user), get_menuitem_quark());
-}
-
-static void
-user_set_menuitem (AccountsUser * user, DbusmenuMenuitem * mi)
-{
- g_object_set_qdata (G_OBJECT(user), get_menuitem_quark(), mi);
-
- g_object_weak_ref (G_OBJECT(mi), (GWeakNotify)user_clear_menuitem, user);
-}
-
-/***/
-
-static GQuark
-get_mgr_quark (void)
-{
- static GQuark q = 0;
-
- if (G_UNLIKELY(!q))
- {
- q = g_quark_from_static_string ("session-menu-mgr");
- }
-
- return q;
-}
-
-static SessionMenuMgr*
-user_get_mgr (AccountsUser * user)
-{
- return g_object_get_qdata (G_OBJECT(user), get_mgr_quark());
-}
-
-static void
-user_set_mgr (AccountsUser * user, SessionMenuMgr * mgr)
-{
- g_object_set_qdata (G_OBJECT(user), get_mgr_quark(), mgr);
-}
-
-/***/
-
-static GQuark
-get_collision_quark (void)
-{
- static GQuark q = 0;
-
- if (G_UNLIKELY(!q))
- {
- q = g_quark_from_static_string ("name-collision");
- }
-
- return q;
-}
-
-static gboolean
-user_has_name_collision (AccountsUser * u)
-{
- return g_object_get_qdata (G_OBJECT(u), get_collision_quark()) != NULL;
-}
-
-static void
-user_set_name_collision (AccountsUser * u, gboolean b)
-{
- g_object_set_qdata (G_OBJECT(u), get_collision_quark(), GINT_TO_POINTER(b));
-}
-
-/***
-****
-***/
-
-static void
-on_guest_logged_in_changed (UsersServiceDbus * usd,
- SessionMenuMgr * mgr)
-{
- if (mgr->guest_mi != NULL)
- {
- mi_set_logged_in (mgr->guest_mi,
- users_service_dbus_is_guest_logged_in (usd));
- }
-}
-
-/* When a user's login state changes,
- update the corresponding menuitem's LOGGED_IN property */
-static void
-on_user_logged_in_changed (UsersServiceDbus * usd,
- AccountsUser * user,
- SessionMenuMgr * mgr)
-{
- DbusmenuMenuitem * mi = user_get_menuitem (user);
-
- if (mi != NULL)
- {
- mi_set_logged_in (mi, users_service_dbus_is_user_logged_in (usd, user));
- }
-}
-
-static void
-update_screensaver_shortcut (SessionMenuMgr * mgr)
-{
- gchar * s = g_settings_get_string (mgr->keybinding_settings, "screensaver");
- g_debug ("%s Screensaver shortcut changed to: '%s'", G_STRLOC, s);
-
- if (mgr->lock_mi != NULL)
- {
- dbusmenu_menuitem_property_set_shortcut_string (mgr->lock_mi, s);
- }
-
- if (mgr->lock_switch_mi != NULL)
- {
- dbusmenu_menuitem_property_set_shortcut_string (mgr->lock_switch_mi, s);
- }
-
- if (mgr->screensaver_mi != NULL)
- {
- dbusmenu_menuitem_property_set_shortcut_string (mgr->screensaver_mi, s);
- }
-
- g_free (s);
-}
-
-static void
-update_user_menuitem_icon (DbusmenuMenuitem * mi, AccountsUser * user)
-{
- const gchar * str = accounts_user_get_icon_file (user);
-
- if (!str || !*str)
- {
- str = USER_ITEM_ICON_DEFAULT;
- }
-
- dbusmenu_menuitem_property_set (mi, USER_ITEM_PROP_ICON, str);
-}
-
-static void
-update_user_menuitem_name (DbusmenuMenuitem * mi, AccountsUser * user)
-{
- GString * gstr = g_string_new (accounts_user_get_real_name (user));
-
- if (user_has_name_collision (user))
- g_string_append_printf (gstr, " (%s)", accounts_user_get_user_name(user));
-
- if (!gstr->len)
- g_string_assign (gstr, accounts_user_get_user_name(user));
-
- dbusmenu_menuitem_property_set (mi, USER_ITEM_PROP_NAME, gstr->str);
- g_string_free (gstr, TRUE);
-}
-
-static void
-on_user_property_changed (AccountsUser * user,
- GParamSpec * pspec,
- DbusmenuMenuitem * mi)
-{
- static const char * interned_icon_file = NULL;
- static const char * interned_real_name = NULL;
- static const char * interned_user_name = NULL;
-
- if (G_UNLIKELY (interned_icon_file == NULL))
- {
- interned_icon_file = g_intern_static_string ("icon-file");
- interned_user_name = g_intern_static_string ("user-name");
- interned_real_name = g_intern_static_string ("real-name");
- }
-
- if (pspec->name == interned_icon_file)
- {
- update_user_menuitem_icon (mi, user);
- }
- else if ((pspec->name == interned_real_name)
- || (pspec->name == interned_user_name))
- {
- /* name changing can affect other menuitems too by invalidating
- the sort order or name collision flags... so let's rebuild */
- update_user_menuitems (user_get_mgr (user));
- }
-}
-
-typedef struct
-{
- gpointer instance;
- gulong handler_id;
-}
-SignalHandlerData;
-
-/* when a user menuitem is destroyed,
- it should stop listening for its UserAccount's property changes */
-static void
-on_user_menuitem_destroyed (SignalHandlerData * data)
-{
- g_signal_handler_disconnect (data->instance, data->handler_id);
- g_free (data);
-}
-
-static DbusmenuMenuitem*
-user_menuitem_new (AccountsUser * user, SessionMenuMgr * mgr)
-{
- DbusmenuMenuitem * mi = dbusmenu_menuitem_new ();
- mi_set_type (mi, USER_ITEM_TYPE);
-
- /* set the name & icon and listen for property changes */
- update_user_menuitem_name (mi, user);
- update_user_menuitem_icon (mi, user);
- SignalHandlerData * hd = g_new0 (SignalHandlerData, 1);
- hd->instance = user;
- hd->handler_id = g_signal_connect (user, "notify",
- G_CALLBACK(on_user_property_changed), mi);
- g_object_weak_ref (G_OBJECT(mi), (GWeakNotify)on_user_menuitem_destroyed, hd);
-
- /* set the logged-in property */
- mi_set_logged_in (mi,
- users_service_dbus_is_user_logged_in (mgr->users_dbus_facade, user));
-
- /* set the is-current-user property */
- const gboolean is_current_user =
- !g_strcmp0 (g_get_user_name(), accounts_user_get_user_name(user));
-
- dbusmenu_menuitem_property_set_bool (mi,
- USER_ITEM_PROP_IS_CURRENT_USER,
- is_current_user);
-
- /* set the switch-to-user action */
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK (action_func_switch_to_user), user);
-
- /* give this AccountsUser a hook back to this menuitem */
- user_set_menuitem (user, mi);
- user_set_mgr (user, mgr);
-
- return mi;
-}
-
-/* for sorting AccountsUsers from most to least frequently used */
-static gint
-compare_users_by_login_frequency (gconstpointer a, gconstpointer b)
-{
- const guint64 a_freq = accounts_user_get_login_frequency (ACCOUNTS_USER(a));
- const guint64 b_freq = accounts_user_get_login_frequency (ACCOUNTS_USER(b));
- if (a_freq > b_freq) return -1;
- if (a_freq < b_freq) return 1;
- return 0;
-}
-
-/* for sorting AccountsUsers alphabetically */
-static gint
-compare_users_by_username (gconstpointer ga, gconstpointer gb)
-{
- AccountsUser * a = ACCOUNTS_USER(ga);
- AccountsUser * b = ACCOUNTS_USER(gb);
-
- const int ret = g_strcmp0 (accounts_user_get_real_name (a),
- accounts_user_get_real_name (b));
-
- if (!ret) /* names are the same, so both have a name collision */
- {
- user_set_name_collision (a, TRUE);
- user_set_name_collision (b, TRUE);
- }
-
- return ret;
-}
-
-static gboolean
-is_user_switching_allowed (SessionMenuMgr * mgr)
-{
- /* maybe it's locked down */
- if (g_settings_get_boolean (mgr->lockdown_settings, "disable-user-switching"))
- {
- return FALSE;
- }
-
- /* maybe the seat doesn't support activation */
-
- return TRUE;
-}
-
-static void
-build_user_menuitems (SessionMenuMgr * mgr)
-{
- g_return_if_fail (!mgr->greeter_mode);
-
- DbusmenuMenuitem * mi;
- GSList * items = NULL;
- gint pos = mgr->user_menuitem_index;
- const char * current_real_name = NULL;
-
- /**
- *** Start Screen Saver
- *** Switch Account...
- *** Lock
- *** Lock / Switch Account...
- **/
-
- const SwitcherMode mode = get_switcher_mode (mgr);
-
- mi = mgr->screensaver_mi = mi_new (_("Start Screen Saver"));
- mi_set_visible (mi, mode == SWITCHER_MODE_SCREENSAVER);
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- items = g_slist_prepend (items, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK (action_func_lock), mgr);
-
- mi = mi_new (_("Switch User Account\342\200\246"));
- mi_set_visible (mi, mode == SWITCHER_MODE_SWITCH);
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- items = g_slist_prepend (items, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK (action_func_switch_to_greeter), mgr);
-
- mi = mgr->lock_mi = mi_new (_("Lock"));
- mi_set_visible (mi, mode == SWITCHER_MODE_LOCK);
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- items = g_slist_prepend (items, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK (action_func_switch_to_lockscreen), mgr);
-
- mi = mgr->lock_switch_mi = mi_new (_("Lock/Switch Account\342\200\246"));
- mi_set_visible (mi, mode == SWITCHER_MODE_SWITCH_OR_LOCK);
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- items = g_slist_prepend (items, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK (action_func_switch_to_lockscreen), mgr);
-
- const gboolean is_guest = is_this_guest_session ();
- const gboolean guest_allowed =
- users_service_dbus_guest_session_enabled (mgr->users_dbus_facade);
- mi = mgr->guest_mi = dbusmenu_menuitem_new ();
- mi_set_type (mi, USER_ITEM_TYPE);
- mi_set_visible (mi, !is_guest && guest_allowed);
- dbusmenu_menuitem_property_set (mi, USER_ITEM_PROP_NAME, _("Guest Session"));
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- on_guest_logged_in_changed (mgr->users_dbus_facade, mgr);
- items = g_slist_prepend (items, mi);
- g_signal_connect_swapped (mi, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
- G_CALLBACK (action_func_switch_to_guest), mgr);
-
- if (guest_allowed && is_guest)
- {
- current_real_name = _("Guest");
- }
-
- /***
- **** Users
- ***/
-
- /* if we can switch to another user account, show them here */
- const char * const username = g_get_user_name();
- GList * users = users_service_dbus_get_user_list (mgr->users_dbus_facade);
-
- /* since we're building (or rebuilding) from scratch,
- clear the name collision flags */
- GList * u;
- for (u=users; u!=NULL; u=u->next)
- {
- AccountsUser * user = ACCOUNTS_USER(u->data);
-
- user_set_name_collision (user, FALSE);
-
- if (!g_strcmp0 (username, accounts_user_get_user_name(user)))
- {
- current_real_name = accounts_user_get_real_name (user);
- }
- }
-
- if (is_user_switching_allowed (mgr))
- {
- /* pick the most frequently used accounts */
- const int MAX_USERS = 12; /* this limit comes from the spec */
- if (g_list_length(users) > MAX_USERS)
- {
- users = g_list_sort (users, compare_users_by_login_frequency);
- GList * last = g_list_nth (users, MAX_USERS-1);
- GList * remainder = last->next;
- last->next = NULL;
- remainder->prev = NULL;
- g_list_free (remainder);
- }
-
- /* Sort the users by name for display */
- users = g_list_sort (users, compare_users_by_username);
-
- /* Create menuitems for them */
- int i;
- for (i=0, u=users; i<MAX_USERS && u!=NULL; u=u->next, i++)
- {
- AccountsUser * user = u->data;
- DbusmenuMenuitem * mi = user_menuitem_new (user, mgr);
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- items = g_slist_prepend (items, mi);
- }
- }
-
- g_list_free (users);
-
- /* separator */
- if (mode != SWITCHER_MODE_SCREENSAVER && !is_guest && guest_allowed)
- {
- mi = mi_new_separator ();
- dbusmenu_menuitem_child_add_position (mgr->top_mi, mi, pos++);
- items = g_slist_prepend (items, mi);
- }
-
- if (current_real_name != NULL)
- {
- session_dbus_set_users_real_name (mgr->session_dbus,
- current_real_name);
- }
-
- update_screensaver_shortcut (mgr);
- mgr->user_menuitems = items;
-}
-
-static void
-update_user_menuitems (SessionMenuMgr * mgr)
-{
- /* remove any previous user menuitems */
- GSList * l;
- for (l=mgr->user_menuitems; l!=NULL; l=l->next)
- {
- dbusmenu_menuitem_child_delete (mgr->top_mi, l->data);
- }
- g_slist_free (mgr->user_menuitems);
- mgr->user_menuitems = NULL;
-
- /* add fresh user menuitems */
- if (!mgr->greeter_mode)
- {
- build_user_menuitems (mgr);
- }
-}
-
-/***
-**** Actions!
-***/
-
-static void
-action_func_spawn_async (const char * cmd)
-{
- GError * error = NULL;
-
- g_debug ("%s calling \"%s\"", G_STRFUNC, cmd);
- g_spawn_command_line_async (cmd, &error);
-
- if (error != NULL)
- {
- g_warning ("Unable to execute \"%s\": %s", cmd, error->message);
- g_clear_error (&error);
- }
-}
-
-/* Calling "Lock" locks the screen & goes to black.
- Calling "SimulateUserActivity" afterwards shows the Lock Screen. */
-static void
-lock_helper (SessionMenuMgr * mgr, gboolean show_lock_screen)
-{
- if (!g_settings_get_boolean (mgr->lockdown_settings, "disable-lock-screen"))
- {
- GError * error = NULL;
- GDBusProxy * proxy = g_dbus_proxy_new_for_bus_sync (
- G_BUS_TYPE_SESSION,
- G_DBUS_PROXY_FLAGS_NONE,
- NULL,
- "org.gnome.ScreenSaver",
- "/org/gnome/ScreenSaver",
- "org.gnome.ScreenSaver",
- NULL,
- &error);
-
- if (error == NULL)
- {
- g_dbus_proxy_call_sync (proxy, "Lock",
- NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL,
- &error);
- }
-
- if ((error == NULL) && show_lock_screen)
- {
- g_dbus_proxy_call_sync (proxy, "SimulateUserActivity",
- NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL,
- &error);
- }
-
- if (error != NULL)
- {
- g_warning ("Error locking screen: %s", error->message);
- }
-
- g_clear_object (&proxy);
- g_clear_error (&error);
- }
-}
-
-static void
-action_func_lock (SessionMenuMgr * mgr)
-{
- lock_helper (mgr, FALSE);
-}
-
-static void
-action_func_switch_to_lockscreen (SessionMenuMgr * mgr)
-{
- lock_helper (mgr, TRUE);
-}
-
-static void
-action_func_switch_to_greeter (SessionMenuMgr * mgr)
-{
- action_func_lock (mgr);
- users_service_dbus_show_greeter (mgr->users_dbus_facade);
-}
-
-static void
-action_func_switch_to_user (AccountsUser * user)
-{
- SessionMenuMgr * mgr = user_get_mgr (user);
-
- g_return_if_fail (mgr != NULL);
-
- if (g_strcmp0 (g_get_user_name(), accounts_user_get_user_name(user)) != 0)
- {
- action_func_lock (mgr);
- users_service_dbus_activate_user_session (mgr->users_dbus_facade, user);
- }
-}
-
-static void
-action_func_switch_to_guest (SessionMenuMgr * mgr)
-{
- action_func_lock (mgr);
- users_service_dbus_activate_guest_session (mgr->users_dbus_facade);
-}
-
-static void
-action_func_suspend (SessionMenuMgr * mgr)
-{
- GError * error = NULL;
-
- login1_manager_call_suspend_sync (mgr->login1_manager_proxy,
- TRUE,
- mgr->cancellable,
- &error);
-
- if (error != NULL)
- {
- g_warning ("%s: %s", G_STRFUNC, error->message);
- g_clear_error (&error);
- }
-}
-
-static void
-action_func_hibernate (SessionMenuMgr * mgr)
-{
- GError * error = NULL;
-
- login1_manager_call_hibernate_sync (mgr->login1_manager_proxy,
- TRUE,
- mgr->cancellable,
- &error);
-
- if (error != NULL)
- {
- g_warning ("%s: %s", G_STRFUNC, error->message);
- g_clear_error (&error);
- }
-}
-
-static gboolean
-call_session_manager_method (const gchar * method_name, GVariant * parameters)
-{
- gboolean result = TRUE;
- GError * error = NULL;
- GDBusProxy * proxy = g_dbus_proxy_new_for_bus_sync (
- G_BUS_TYPE_SESSION,
- G_DBUS_PROXY_FLAGS_NONE,
- NULL,
- "org.gnome.SessionManager",
- "/org/gnome/SessionManager",
- "org.gnome.SessionManager",
- NULL,
- &error);
-
- if (error == NULL)
- {
- g_dbus_proxy_call_sync (proxy, method_name, parameters,
- G_DBUS_CALL_FLAGS_NONE, -1, NULL,
- &error);
- }
- else if (parameters != NULL)
- {
- g_variant_unref (parameters);
- }
-
- if (error != NULL)
- {
- result = FALSE;
- g_warning ("Error shutting down: %s", error->message);
- g_clear_error (&error);
- }
-
- g_clear_object (&proxy);
-
- return result;
-}
-
-static void
-action_func_shutdown (SessionMenuMgr * mgr)
-{
- gboolean result = FALSE;
-
- if (mgr->shell_mode)
- {
- if (g_settings_get_boolean (mgr->indicator_settings,
- "suppress-logout-restart-shutdown"))
- {
- result = call_session_manager_method ("Shutdown", NULL);
- }
- else
- {
- /* We call 'Reboot' method instead of 'Shutdown' because
- * Unity SessionManager handles the Shutdown request as a more
- * general request as the default SessionManager dialog would do */
- result = call_session_manager_method ("Reboot", NULL);
- }
- }
-
- if (!result)
- {
- action_func_spawn_async (CMD_SHUTDOWN);
- }
-}
-
-static void
-action_func_logout (SessionMenuMgr * mgr)
-{
- gboolean result = FALSE;
-
- if (mgr->shell_mode)
- {
- guint interactive_mode = 0;
- result = call_session_manager_method ("Logout",
- g_variant_new ("(u)", interactive_mode));
- }
-
- if (!result)
- {
- action_func_spawn_async (CMD_LOGOUT);
- }
-}
-
-static void
-action_func_reboot (SessionMenuMgr * mgr)
-{
- gboolean result = FALSE;
-
- if (mgr->shell_mode)
- {
- result = call_session_manager_method ("Reboot", NULL);
- }
-
- if (!result)
- {
- action_func_spawn_async (CMD_RESTART);
- }
-}
-
-/***
-****
-***/
-
-static gboolean
-is_this_guest_session (void)
-{
- /* FIXME: this test has been here awhile and seems to work,
- but seems brittle to me */
- return geteuid() < 500;
-}
-
-static gboolean
-is_this_live_session (void)
-{
- const struct passwd * const pw = getpwuid (geteuid());
- return (pw->pw_uid==999) && !g_strcmp0("ubuntu",pw->pw_name);
-}
-
-static SwitcherMode
-get_switcher_mode (SessionMenuMgr * mgr)
-{
- SwitcherMode mode;
-
- const gboolean can_lock = !g_settings_get_boolean (mgr->lockdown_settings,
- "disable-lock-screen");
- const gboolean can_switch = is_user_switching_allowed (mgr);
-
- if (!can_lock && !can_switch) /* hmm, quite an extreme lockdown */
- {
- mode = SWITCHER_MODE_NONE;
- }
- else if (is_this_live_session()) /* live sessions can't lock or switch */
- {
- mode = SWITCHER_MODE_SCREENSAVER;
- }
- else if (!can_switch) /* switching's locked down */
- {
- mode = SWITCHER_MODE_LOCK;
- }
- else if (is_this_guest_session ()) /* guest sessions can't lock */
- {
- mode = SWITCHER_MODE_SWITCH;
- }
- else /* both locking & switching are allowed */
- {
- GList * l = users_service_dbus_get_user_list (mgr->users_dbus_facade);
- const size_t user_count = g_list_length (l);
- g_list_free (l);
-
- /* only show switch mode if we have users to switch to */
- mode = user_count > (is_this_guest_session() ? 0 : 1)
- ? SWITCHER_MODE_SWITCH_OR_LOCK
- : SWITCHER_MODE_LOCK;
- }
-
- return mode;
-}
-
-
-/***
-****
-***/
-
-SessionMenuMgr*
-session_menu_mgr_new (SessionDbus * session_dbus,
- gboolean greeter_mode)
-{
- SessionMenuMgr* mgr = g_object_new (SESSION_TYPE_MENU_MGR, NULL);
- mgr->greeter_mode = greeter_mode;
- mgr->session_dbus = g_object_ref (session_dbus);
- build_admin_menuitems (mgr);
- const guint n = g_list_length (dbusmenu_menuitem_get_children (mgr->top_mi));
- mgr->user_menuitem_index = n;
- update_user_menuitems (mgr);
- build_session_menuitems (mgr);
-
- return mgr;
-}
-
-/**
- * session_menu_mgr_get_menu:
- *
- * Returns: (transfer none): the manager's menu.
- */
-DbusmenuMenuitem *
-session_menu_mgr_get_menu (SessionMenuMgr * mgr)
-{
- g_return_val_if_fail (IS_SESSION_MENU_MGR(mgr), NULL);
-
- return mgr->top_mi;
-}