[ekiga] Update presentity name in roster if needed

[Eugen Dedu <ededu src gnome org>]

commit 6f36bc97e458269599f200d7788b4cfc5ea6a072
Author: Eugen Dedu <eugen dedu univ-fcomte fr>
Date:   Thu Jan 29 18:13:48 2015 +0100

    Update presentity name in roster if needed
    
    Fixes following bug: right-click on a presentity in roster, change the
    name, press Done: the name in roster was not changed.

 lib/engine/gui/gtk-frontend/roster-view-gtk.cpp |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/roster-view-gtk.cpp b/lib/engine/gui/gtk-frontend/roster-view-gtk.cpp
index 3390d0d..659015a 100644
--- a/lib/engine/gui/gtk-frontend/roster-view-gtk.cpp
+++ b/lib/engine/gui/gtk-frontend/roster-view-gtk.cpp
@@ -1176,6 +1176,17 @@ on_presentity_added (RosterViewGtk* self,
       if (gtk_tree_selection_iter_is_selected (selection, &filtered_iter))
        should_emit = TRUE;
 
+    // update presentity name if needed
+    gchar *old_name;
+    gtk_tree_model_get (GTK_TREE_MODEL (self->priv->store), &iter,
+                        COLUMN_NAME, &old_name, -1);
+    if (old_name) {
+      if (presentity->get_name () != old_name)
+        gtk_tree_store_set (self->priv->store, &iter,
+                            COLUMN_NAME, presentity->get_name ().c_str (), -1);
+      g_free (old_name);
+    }
+
     // Find out what our presence was
     gtk_tree_model_get (GTK_TREE_MODEL (self->priv->store), &iter,
                         COLUMN_TIMEOUT, &timeout,