[gdm/multi-stack: 21/32] Separate handling of non-users in user list from users

[Ray Strode <halfline src gnome org>]

commit 80d3f5efa1946fba373d7bb1aa6d86747f0c6c86
Author: Ray Strode <rstrode redhat com>
Date:   Tue Feb 24 15:12:35 2009 -0500

    Separate handling of non-users in user list from users
    
    Now get_chosen_user returns NULL if the activated item
    wasn't a user.  We also separate the handling of on item
    activation in two functions depending on the item type.
    
    This will be useful for adding custom handling for plugin
    added items.

 gui/simple-greeter/gdm-greeter-login-window.c      |   53 +++++++++++++-------
 gui/simple-greeter/gdm-user-chooser-widget.c       |   23 ++++++++-
 .../fingerprint/gdm-fingerprint-extension.c        |    2 -
 3 files changed, 56 insertions(+), 22 deletions(-)
---
diff --git a/gui/simple-greeter/gdm-greeter-login-window.c b/gui/simple-greeter/gdm-greeter-login-window.c
index a43a462..23ced52 100644
--- a/gui/simple-greeter/gdm-greeter-login-window.c
+++ b/gui/simple-greeter/gdm-greeter-login-window.c
@@ -1125,29 +1125,49 @@ begin_task_verification_for_selected_user (GdmTaskList           *task_list,
 }
 
 static void
-on_user_chosen (GdmUserChooserWidget  *user_chooser,
-                GdmGreeterLoginWindow *login_window)
+on_user_chosen (GdmGreeterLoginWindow *login_window,
+                const char            *user_name)
 {
-        char *user_name;
+        g_debug ("GdmGreeterLoginWindow: user chosen '%s'", user_name);
+
+        g_signal_emit (G_OBJECT (login_window), signals[USER_SELECTED],
+                       0, user_name);
+
+        gdm_task_list_foreach_task (GDM_TASK_LIST (login_window->priv->conversation_list),
+                                    (GdmTaskListForeachFunc)
+                                    begin_task_verification_for_selected_user,
+                                    login_window);
+
+        switch_mode (login_window, MODE_AUTHENTICATION);
+}
+
+static void
+on_user_chooser_activated (GdmUserChooserWidget  *user_chooser,
+                           GdmGreeterLoginWindow *login_window)
+{
+        char *item_id;
 
         user_name = gdm_user_chooser_widget_get_chosen_user_name (GDM_USER_CHOOSER_WIDGET (login_window->priv->user_chooser));
-        g_debug ("GdmGreeterLoginWindow: user chosen '%s'", user_name);
 
-        if (user_name == NULL) {
+        if (user_name != NULL) {
+                g_debug ("GdmGreeterLoginWindow: user chosen '%s'", user_name);
+                on_user_chosen (login_window, user_name);
+                g_free (user_name);
                 return;
         }
 
-        g_signal_emit (G_OBJECT (login_window), signals[USER_SELECTED],
-                       0, user_name);
+        item_id = gdm_chooser_widget_get_active_item (GDM_CHOOSER_WIDGET (user_chooser));
+        g_debug ("GdmGreeterLoginWindow: item chosen '%s'", item_id);
 
-        if (strcmp (user_name, GDM_USER_CHOOSER_USER_OTHER) == 0) {
+        if (strcmp (item_id, GDM_USER_CHOOSER_USER_OTHER) == 0) {
+                g_debug ("GdmGreeterLoginWindow: Starting all auth conversations");
                 gdm_task_list_foreach_task (GDM_TASK_LIST (login_window->priv->conversation_list),
                                             (GdmTaskListForeachFunc)
                                             begin_task_verification,
                                             login_window);
-        } else if (strcmp (user_name, GDM_USER_CHOOSER_USER_GUEST) == 0) {
-                /* FIXME: handle guest account stuff */
-        } else if (strcmp (user_name, GDM_USER_CHOOSER_USER_AUTO) == 0) {
+                g_free (item_id);
+        } else if (strcmp (item_id, GDM_USER_CHOOSER_USER_AUTO) == 0) {
+                g_debug ("GdmGreeterLoginWindow: Starting auto login");
                 g_signal_emit (login_window, signals[BEGIN_AUTO_LOGIN], 0,
                                login_window->priv->timed_login_username);
 
@@ -1157,16 +1177,11 @@ on_user_chosen (GdmUserChooserWidget  *user_chooser,
                 /* just wait for the user to select language and stuff */
                 set_log_in_button_mode (login_window, LOGIN_BUTTON_TIMED_LOGIN);
                 set_message (login_window, _("Select language and click Log In"));
-        } else {
-                gdm_task_list_foreach_task (GDM_TASK_LIST (login_window->priv->conversation_list),
-                                            (GdmTaskListForeachFunc)
-                                            begin_task_verification_for_selected_user,
-                                            login_window);
+                g_free (item_id);
         }
 
+        g_debug ("GdmGreeterLoginWindow: Switching to shrunken authentication mode");
         switch_mode (login_window, MODE_AUTHENTICATION);
-
-        g_free (user_name);
 }
 
 static void
@@ -1455,7 +1470,7 @@ load_theme (GdmGreeterLoginWindow *login_window)
                           login_window);
         g_signal_connect (login_window->priv->user_chooser,
                           "activated",
-                          G_CALLBACK (on_user_chosen),
+                          G_CALLBACK (on_user_chooser_activated),
                           login_window);
         g_signal_connect (login_window->priv->user_chooser,
                           "deactivated",
diff --git a/gui/simple-greeter/gdm-user-chooser-widget.c b/gui/simple-greeter/gdm-user-chooser-widget.c
index 77e06a7..bff71e5 100644
--- a/gui/simple-greeter/gdm-user-chooser-widget.c
+++ b/gui/simple-greeter/gdm-user-chooser-widget.c
@@ -269,9 +269,30 @@ gdm_user_chooser_widget_set_show_user_auto (GdmUserChooserWidget *widget,
 char *
 gdm_user_chooser_widget_get_chosen_user_name (GdmUserChooserWidget *widget)
 {
+        char *active_item_id;
+        gboolean isnt_user;
+
         g_return_val_if_fail (GDM_IS_USER_CHOOSER_WIDGET (widget), NULL);
 
-        return gdm_chooser_widget_get_active_item (GDM_CHOOSER_WIDGET (widget));
+        active_item_id = gdm_chooser_widget_get_active_item (GDM_CHOOSER_WIDGET (widget));
+        if (active_item_id == NULL) {
+                g_debug ("GdmUserChooserWidget: no active item in list");
+                return NULL;
+        }
+
+        gdm_chooser_widget_lookup_item (GDM_CHOOSER_WIDGET (widget), active_item_id,
+                                        NULL, NULL, NULL, NULL, NULL,
+                                        &isnt_user);
+
+        if (isnt_user) {
+                g_debug ("GdmUserChooserWidget: active item '%s' isn't a user", active_item_id);
+                g_free (active_item_id);
+                return NULL;
+        }
+
+        g_debug ("GdmUserChooserWidget: active item '%s' is a user", active_item_id);
+
+        return active_item_id;
 }
 
 void
diff --git a/gui/simple-greeter/plugins/fingerprint/gdm-fingerprint-extension.c b/gui/simple-greeter/plugins/fingerprint/gdm-fingerprint-extension.c
index 7aa99e7..316ef46 100644
--- a/gui/simple-greeter/plugins/fingerprint/gdm-fingerprint-extension.c
+++ b/gui/simple-greeter/plugins/fingerprint/gdm-fingerprint-extension.c
@@ -287,8 +287,6 @@ create_page (GdmFingerprintExtension *extension)
 static void
 create_actions (GdmFingerprintExtension *extension)
 {
-        GtkAction *action;
-
         extension->priv->actions = gtk_action_group_new ("gdm-fingerprint-extension");
 }