[totem] main: Handle current browse source disappearing

[Bastien Nocera <hadess src gnome org>]

commit c52fb2a21cbea92ce57ac410e331f422bc575d9b
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 6 15:29:23 2014 +0100

    main: Handle current browse source disappearing

 src/totem-grilo.c |   24 ++++++++++++++++++++++--
 1 files changed, 22 insertions(+), 2 deletions(-)
---
diff --git a/src/totem-grilo.c b/src/totem-grilo.c
index 4b92800..d42ae66 100644
--- a/src/totem-grilo.c
+++ b/src/totem-grilo.c
@@ -1250,8 +1250,8 @@ remove_browse_result (GtkTreeModel *model,
 
 static void
 source_removed_cb (GrlRegistry *registry,
-                   GrlSource *source,
-                   gpointer user_data)
+                   GrlSource   *source,
+                   gpointer     user_data)
 {
        GrlSupportedOps ops;
        TotemGrilo *self = TOTEM_GRILO (user_data);
@@ -1260,6 +1260,26 @@ source_removed_cb (GrlRegistry *registry,
 
        /* Remove source and content from browse results */
        if (ops & GRL_OP_BROWSE) {
+               /* Inside the removed browse source? */
+               if (self->priv->browser_filter_model) {
+                       GtkTreePath *path;
+                       GtkTreeIter iter;
+
+                       g_object_get (G_OBJECT (self->priv->browser_filter_model), "virtual-root", &path, 
NULL);
+                       if (path != NULL &&
+                           gtk_tree_model_get_iter (self->priv->browser_model, &iter, path)) {
+                               GrlSource *current_source;
+
+                               gtk_tree_model_get (self->priv->browser_model, &iter,
+                                                   MODEL_RESULTS_SOURCE, &current_source,
+                                                   -1);
+                               if (current_source == source)
+                                       set_browser_filter_model_for_path (self, NULL);
+                               g_clear_object (&current_source);
+                       }
+                       g_clear_pointer (&path, gtk_tree_path_free);
+               }
+
                gtk_tree_model_foreach (self->priv->browser_model,
                                        remove_browse_result,
                                        source);