[totem] grilo: Remove children when going up in the browser

[Bastien Nocera <hadess src gnome org>]

commit c147beb1ccc8aebb0fcdae0cf70ea6b1eaa05c6e
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Jan 17 00:43:36 2014 +0100

    grilo: Remove children when going up in the browser

 src/plugins/grilo/totem-grilo.c |   22 ++++++++++++++++++----
 1 files changed, 18 insertions(+), 4 deletions(-)
---
diff --git a/src/plugins/grilo/totem-grilo.c b/src/plugins/grilo/totem-grilo.c
index 1cd1fba..7e43122 100644
--- a/src/plugins/grilo/totem-grilo.c
+++ b/src/plugins/grilo/totem-grilo.c
@@ -1187,17 +1187,31 @@ back_button_clicked_cb (TotemMainToolbar *toolbar,
                        TotemGriloPlugin *self)
 {
        GtkTreePath *path;
+       GtkTreeIter iter;
 
        g_assert (self->priv->browser_filter_model);
        g_object_get (G_OBJECT (self->priv->browser_filter_model), "virtual-root", &path, NULL);
        g_assert (path);
 
-       /* FIXME: Remove all the items at that level */
+       set_browser_filter_model_for_path (self, NULL);
+
+       /* Remove all the items at that level */
+       if (gtk_tree_model_get_iter (self->priv->browser_model, &iter, path)) {
+               GtkTreeIter child;
+
+               if (gtk_tree_model_iter_children (self->priv->browser_model, &child, &iter)) {
+                       while (gtk_tree_store_remove (GTK_TREE_STORE (self->priv->browser_model), &child))
+                               ;
+               }
+
+               gtk_tree_store_set (GTK_TREE_STORE (self->priv->browser_model), &iter,
+                                   MODEL_RESULTS_PAGE, 0,
+                                   MODEL_RESULTS_REMAINING, 0,
+                                   -1);
+       }
 
        gtk_tree_path_up (path);
-       if (gtk_tree_path_get_depth (path) == 0)
-               set_browser_filter_model_for_path (self, NULL);
-       else
+       if (gtk_tree_path_get_depth (path) > 0)
                set_browser_filter_model_for_path (self, path);
        gtk_tree_path_free (path);
 }