[gdm] Ensure users are loaded before starting the timed login clock. Fixes bug #614062.

[Brian Cameron <bcameron src gnome org>]

commit b0997be9b4101fda30d621326b43e2ccf89ce4b1
Author: Brian Cameron <Brian Cameron sun com>
Date:   Wed Apr 21 16:57:20 2010 -0500

    Ensure users are loaded before starting the timed login clock.  Fixes
    bug #614062.

 gui/simple-greeter/gdm-greeter-login-window.c |   46 ++++++++++++++++++------
 1 files changed, 34 insertions(+), 12 deletions(-)
---
diff --git a/gui/simple-greeter/gdm-greeter-login-window.c b/gui/simple-greeter/gdm-greeter-login-window.c
index 25af747..0c7a936 100644
--- a/gui/simple-greeter/gdm-greeter-login-window.c
+++ b/gui/simple-greeter/gdm-greeter-login-window.c
@@ -109,6 +109,7 @@ struct GdmGreeterLoginWindowPrivate
 
         guint            dialog_mode;
 
+        gboolean         timed_login_already_enabled;
         gboolean         timed_login_enabled;
         guint            timed_login_delay;
         char            *timed_login_username;
@@ -624,34 +625,55 @@ gdm_greeter_login_window_problem (GdmGreeterLoginWindow *login_window,
         return TRUE;
 }
 
+static void
+handle_request_timed_login (GdmGreeterLoginWindow *login_window)
+{
+        if (login_window->priv->dialog_mode != MODE_SELECTION) {
+                reset_dialog (login_window);
+        }
+        gdm_user_chooser_widget_set_show_user_auto (GDM_USER_CHOOSER_WIDGET (login_window->priv->user_chooser), TRUE);
+
+        if (!login_window->priv->timed_login_already_enabled) {
+                gdm_user_chooser_widget_set_chosen_user_name (GDM_USER_CHOOSER_WIDGET (login_window->priv->user_chooser),
+                                                              GDM_USER_CHOOSER_USER_AUTO);
+        }
+}
+
+static void
+on_request_timed_login_after_users_loaded (GdmUserChooserWidget  *user_chooser,
+                                           GdmGreeterLoginWindow *login_window)
+{
+        g_debug ("Users now loaded, handling timed login request");
+        handle_request_timed_login (login_window);
+}
+
 void
 gdm_greeter_login_window_request_timed_login (GdmGreeterLoginWindow *login_window,
                                               const char            *username,
                                               int                    delay)
 {
-        static gboolean timed_login_already_enabled;
-
         g_return_if_fail (GDM_IS_GREETER_LOGIN_WINDOW (login_window));
 
         g_debug ("GdmGreeterLoginWindow: requested automatic login for user '%s' in %d seconds", username, delay);
 
         if (login_window->priv->timed_login_username != NULL) {
-                timed_login_already_enabled = TRUE;
+                login_window->priv->timed_login_already_enabled = TRUE;
                 g_free (login_window->priv->timed_login_username);
         } else {
-                timed_login_already_enabled = FALSE;
+                login_window->priv->timed_login_already_enabled = FALSE;
         }
         login_window->priv->timed_login_username = g_strdup (username);
         login_window->priv->timed_login_delay = delay;
 
-        if (login_window->priv->dialog_mode != MODE_SELECTION) {
-                reset_dialog (login_window);
-        }
-        gdm_user_chooser_widget_set_show_user_auto (GDM_USER_CHOOSER_WIDGET (login_window->priv->user_chooser), TRUE);
-
-        if (!timed_login_already_enabled) {
-                gdm_user_chooser_widget_set_chosen_user_name (GDM_USER_CHOOSER_WIDGET (login_window->priv->user_chooser),
-                                                              GDM_USER_CHOOSER_USER_AUTO);
+        if (login_window->priv->user_chooser_loaded) {
+                g_debug ("Handling timed login request since users are already loaded.");
+                handle_request_timed_login (login_window);
+        } else {
+                g_debug ("Waiting to handle timed login request until users are loaded.");
+                g_signal_connect (login_window->priv->user_chooser,
+                                  "loaded",
+                                  G_CALLBACK (on_request_timed_login_after_users_loaded),
+                                  login_window);
         }
 }