[gnome-calendar/calendar-management] source-manager: do not allow readonly calendars be selected as default

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 41be9e4fefc5196e87d08d0409a3726eaaf1886f
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Feb 4 00:09:46 2015 -0200

    source-manager: do not allow readonly calendars be selected as default

 src/gcal-source-manager-dialog.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-source-manager-dialog.c b/src/gcal-source-manager-dialog.c
index df5d97f..be60250 100644
--- a/src/gcal-source-manager-dialog.c
+++ b/src/gcal-source-manager-dialog.c
@@ -613,6 +613,7 @@ update_action_states (GcalSourceManagerDialog *dialog,
 
   action = g_action_map_lookup_action (G_ACTION_MAP (priv->action_group), "default");
   g_action_change_state (action, g_variant_new_boolean (is_default));
+  g_simple_action_set_enabled (G_SIMPLE_ACTION (action), !gcal_manager_is_client_writable (priv->manager, 
source));
 }
 
 GtkWidget *