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Diffstat (limited to 'src/user-menu-mgr.c')
| -rw-r--r-- | src/user-menu-mgr.c | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/src/user-menu-mgr.c b/src/user-menu-mgr.c new file mode 100644 index 0000000..44c1960 --- /dev/null +++ b/src/user-menu-mgr.c @@ -0,0 +1,431 @@ +/* +Copyright 2011 Canonical Ltd. + +Authors: + 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 <libdbusmenu-glib/client.h> + +#include "user-menu-mgr.h" +#include "gconf-helper.h" +#include "dbus-shared-names.h" +#include "dbusmenu-shared.h" +#include "lock-helper.h" +#include "users-service-dbus.h" + +static GConfClient * gconf_client = NULL; +static DbusmenuMenuitem *switch_menuitem = NULL; + +struct _UserMenuMgr +{ + GObject parent_instance; + UsersServiceDbus* users_dbus_interface; + DbusmenuMenuitem* root_item; + gint user_count; + SessionDbus* session_dbus_interface; +}; + +static void activate_new_session (DbusmenuMenuitem * mi, + guint timestamp, + gpointer user_data); +static void activate_user_session (DbusmenuMenuitem *mi, + guint timestamp, + gpointer user_data); +static gint compare_users_by_username (const gchar *a, + const gchar *b); +static void activate_online_accounts (DbusmenuMenuitem *mi, + guint timestamp, + gpointer user_data); +static void user_menu_mgr_rebuild_items (UserMenuMgr *self, + gboolean greeter_mode); +static gboolean check_new_session (); +static void user_change (UsersServiceDbus *service, + const gchar *user_id, + gpointer user_data); + +static void ensure_gconf_client (); +static gboolean check_guest_session (void); +static void activate_guest_session (DbusmenuMenuitem * mi, + guint timestamp, + gpointer user_data); + + +G_DEFINE_TYPE (UserMenuMgr, user_menu_mgr, G_TYPE_OBJECT); + + +static void +user_menu_mgr_init (UserMenuMgr *self) +{ + self->users_dbus_interface = g_object_new (USERS_SERVICE_DBUS_TYPE, NULL); + self->root_item = dbusmenu_menuitem_new (); + g_signal_connect (G_OBJECT (self->users_dbus_interface), + "user-added", + G_CALLBACK (user_change), + self); + g_signal_connect (G_OBJECT (self->users_dbus_interface), + "user-removed", + G_CALLBACK (user_change), + self); +} + +static void +user_menu_mgr_finalize (GObject *object) +{ + /* TODO: Add deinitalization code here */ + G_OBJECT_CLASS (user_menu_mgr_parent_class)->finalize (object); +} + +static void +user_menu_mgr_class_init (UserMenuMgrClass *klass) +{ + GObjectClass* object_class = G_OBJECT_CLASS (klass); + //GObjectClass* parent_class = G_OBJECT_CLASS (klass); + + object_class->finalize = user_menu_mgr_finalize; +} + +/* Builds up the menu for us */ +static void +user_menu_mgr_rebuild_items (UserMenuMgr *self, gboolean greeter_mode) +{ + DbusmenuMenuitem *mi = NULL; + DbusmenuMenuitem *guest_mi = NULL; + GList *u; + UserData *user; + gboolean can_activate; + GList *children; + + /* Make sure we have a valid GConf client, and build one + if needed */ + ensure_gconf_client (); + + /* Check to see which menu items we're allowed to have */ + can_activate = users_service_dbus_can_activate_session (self->users_dbus_interface) && + !gconf_client_get_bool (gconf_client, LOCKDOWN_KEY_USER, NULL); + + /* Remove the old menu items if that makes sense */ + children = dbusmenu_menuitem_take_children (self->root_item); + g_list_foreach (children, (GFunc)g_object_unref, NULL); + g_list_free (children); + + /* Set to NULL just incase we don't end up building one */ + users_service_dbus_set_guest_item(self->users_dbus_interface, NULL); + + /* Build all of the user switching items */ + if (can_activate == TRUE) + { + + if (check_new_session ()){ + switch_menuitem = dbusmenu_menuitem_new (); + dbusmenu_menuitem_property_set (switch_menuitem, + DBUSMENU_MENUITEM_PROP_TYPE, + MENU_SWITCH_TYPE); + dbusmenu_menuitem_property_set (switch_menuitem, + MENU_SWITCH_USER, + g_get_user_name()); + dbusmenu_menuitem_child_append (self->root_item, switch_menuitem); + g_signal_connect (G_OBJECT (switch_menuitem), + DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, + G_CALLBACK (activate_new_session), + self->users_dbus_interface); + } + + if (check_guest_session ()) + { + guest_mi = dbusmenu_menuitem_new (); + dbusmenu_menuitem_property_set (guest_mi, + DBUSMENU_MENUITEM_PROP_TYPE, + USER_ITEM_TYPE); + dbusmenu_menuitem_property_set (guest_mi, + USER_ITEM_PROP_NAME, + _("Guest Session")); + dbusmenu_menuitem_property_set_bool (guest_mi, + USER_ITEM_PROP_LOGGED_IN, + FALSE); + dbusmenu_menuitem_child_append (self->root_item, guest_mi); + g_signal_connect (G_OBJECT (guest_mi), + DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, + G_CALLBACK (activate_guest_session), + self); + users_service_dbus_set_guest_item (self->users_dbus_interface, + guest_mi); + } + + GList * users = NULL; + users = users_service_dbus_get_user_list (self->users_dbus_interface); + self->user_count = g_list_length(users); + + gboolean user_menu_is_visible = FALSE; + + if (!greeter_mode){ + user_menu_is_visible = self->user_count > 1; + } + + session_dbus_set_user_menu_visibility (self->session_dbus_interface, + user_menu_is_visible); + + if (self->user_count > MINIMUM_USERS && self->user_count < MAXIMUM_USERS) { + users = g_list_sort (users, (GCompareFunc)compare_users_by_username); + } + + for (u = users; u != NULL; u = g_list_next (u)) { + user = u->data; + g_debug ("%p: %s", user, user->real_name); + user->service = self->users_dbus_interface; + + if (g_strcmp0(user->user_name, "guest") == 0) { + /* Check to see if the guest has sessions and so therefore should + get a check mark. */ + if (user->sessions != NULL) { + dbusmenu_menuitem_property_set_bool (guest_mi, + USER_ITEM_PROP_LOGGED_IN, + TRUE); + } + /* If we're showing user accounts, keep going through the list */ + if (self->user_count > MINIMUM_USERS && self->user_count < MAXIMUM_USERS) { + continue; + } + /* If not, we can stop here */ + break; + } + + if (self->user_count > MINIMUM_USERS && self->user_count < MAXIMUM_USERS) { + mi = dbusmenu_menuitem_new (); + dbusmenu_menuitem_property_set (mi, + DBUSMENU_MENUITEM_PROP_TYPE, + USER_ITEM_TYPE); + if (user->real_name_conflict) { + gchar * conflictedname = g_strdup_printf("%s (%s)", user->real_name, user->user_name); + dbusmenu_menuitem_property_set (mi, USER_ITEM_PROP_NAME, conflictedname); + g_free(conflictedname); + } else { + //g_debug ("%i %s", (gint)user->uid, user->real_name); + //g_debug ("users uid = %i", (gint)user->uid); + //g_debug ("users real name = %s", user->real_name); + if (user == NULL){ + g_debug ("USER pointer is NULL"); + return; + } + g_debug ("%p: %s", user, user->real_name); + + dbusmenu_menuitem_property_set (mi, + USER_ITEM_PROP_NAME, + user->real_name); + } + dbusmenu_menuitem_property_set_bool (mi, + USER_ITEM_PROP_LOGGED_IN, + user->sessions != NULL); + if (user->icon_file != NULL && user->icon_file[0] != '\0') { + dbusmenu_menuitem_property_set(mi, USER_ITEM_PROP_ICON, user->icon_file); + } else { + dbusmenu_menuitem_property_set(mi, USER_ITEM_PROP_ICON, USER_ITEM_ICON_DEFAULT); + } + + gboolean logged_in = g_strcmp0 (user->user_name, g_get_user_name()) == 0; + dbusmenu_menuitem_property_set_bool (mi, + USER_ITEM_PROP_IS_CURRENT_USER, + logged_in); + if (logged_in == TRUE){ + g_debug ("about to set the users real name to %s for user %s", + user->real_name, user->user_name); + session_dbus_set_users_real_name (self->session_dbus_interface, user->real_name); + } + + dbusmenu_menuitem_child_append (self->root_item, mi); + g_signal_connect (G_OBJECT (mi), + DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, + G_CALLBACK (activate_user_session), + user); + user->menuitem = mi; + } + } + g_list_free(users); + } + // Add the online accounts and separator + DbusmenuMenuitem * separator1 = dbusmenu_menuitem_new(); + dbusmenu_menuitem_property_set (separator1, + DBUSMENU_MENUITEM_PROP_TYPE, + DBUSMENU_CLIENT_TYPES_SEPARATOR); + dbusmenu_menuitem_child_append (self->root_item, separator1); + DbusmenuMenuitem * online_accounts_item = dbusmenu_menuitem_new(); + dbusmenu_menuitem_property_set (online_accounts_item, + DBUSMENU_MENUITEM_PROP_TYPE, + DBUSMENU_CLIENT_TYPES_DEFAULT); + dbusmenu_menuitem_property_set (online_accounts_item, + DBUSMENU_MENUITEM_PROP_LABEL, + _("Online Accounts…")); + + g_signal_connect (G_OBJECT (online_accounts_item), + DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, + G_CALLBACK (activate_online_accounts), + NULL); + + dbusmenu_menuitem_child_append (self->root_item, online_accounts_item); +} + +/* Checks to see if we can create sessions */ +// TODO what is this ? +static gboolean +check_new_session () +{ + return TRUE; +} + +/* Check to see if the lockdown key is protecting from + locking the screen. If not, lock it. */ +static void +lock_if_possible (void) { + ensure_gconf_client (); + + if (!gconf_client_get_bool (gconf_client, LOCKDOWN_KEY_SCREENSAVER, NULL)) { + lock_screen(NULL, 0, NULL); + } + + return; +} + + +/* Starts a new generic session */ +static void +activate_new_session (DbusmenuMenuitem * mi, guint timestamp, gpointer user_data) +{ + lock_if_possible(); + + users_service_dbus_show_greeter (USERS_SERVICE_DBUS(user_data)); + + return; +} + +/* Activates a session for a particular user. */ +static void +activate_user_session (DbusmenuMenuitem *mi, guint timestamp, gpointer user_data) +{ + UserData *user = (UserData *)user_data; + UsersServiceDbus *service = user->service; + + lock_if_possible(); + + 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; + + gint retval = g_strcmp0 (user1->real_name, user2->real_name); + + /* If they're the same, they're both in conflict. */ + if (retval == 0) { + user1->real_name_conflict = TRUE; + user2->real_name_conflict = TRUE; + } + + return retval; +} + +// TODO +// Wait until dialog is complete to find out name to pass +// to the control centre. +static void +activate_online_accounts (DbusmenuMenuitem *mi, + guint timestamp, + gpointer user_data) +{ + GError * error = NULL; + if (!g_spawn_command_line_async("gnome-control-center online-accounts", &error)) + { + g_warning("Unable to show control centre: %s", error->message); + g_error_free(error); + } +} + +/* Signal called when a user is added. It updates the count and + rebuilds the menu */ +static void +user_change (UsersServiceDbus *service, + const gchar *user_id, + gpointer user_data) +{ + //DbusmenuMenuitem *root = (DbusmenuMenuitem *)user_data; + // TODO sort this out. + //rebuild_user_items (root, service); + return; +} + +/* Ensures that we have a GConf client and if we build one + set up the signal handler. */ +static void +ensure_gconf_client () +{ + if (!gconf_client) { + gconf_client = gconf_client_get_default (); + gconf_client_add_dir (gconf_client, LOCKDOWN_DIR, GCONF_CLIENT_PRELOAD_ONELEVEL, NULL); + gconf_client_add_dir (gconf_client, KEYBINDING_DIR, GCONF_CLIENT_PRELOAD_ONELEVEL, NULL); + } +} + +DbusmenuMenuitem* +user_mgr_get_root_item (UserMenuMgr* self) +{ + return self->root_item; +} + +/* 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; + } + + return TRUE; +} + +/* Called when someone clicks on the guest session item. */ +static void +activate_guest_session (DbusmenuMenuitem * mi, guint timestamp, gpointer user_data) +{ + g_return_if_fail (USER_IS_MENU_MGR (user_data)); + UserMenuMgr* user_mgr = USER_MENU_MGR(user_data); + UsersServiceDbus *service = user_mgr->users_dbus_interface; + + lock_if_possible(); + + if (users_service_dbus_activate_guest_session(service)) { + return; + } +} + + +/* + * Clean Entry Point + */ +UserMenuMgr* user_menu_mgr_new (SessionDbus* session_dbus, gboolean greeter_mode) +{ + UserMenuMgr* user_mgr = g_object_new (USER_TYPE_MENU_MGR, NULL); + user_mgr->session_dbus_interface = session_dbus; + user_menu_mgr_rebuild_items (user_mgr, greeter_mode); + return user_mgr; +} + + |