[gnome-calendar/search-improvements] window: show/hide buttons according to search mode

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

commit 3b6357a0419a1b79bf43bc8ba655dca4fc2aa72c
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sun Jan 4 00:16:23 2015 -0200

    window: show/hide buttons according to search mode

 src/gcal-window.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-window.c b/src/gcal-window.c
index 7c1edee..b381041 100644
--- a/src/gcal-window.c
+++ b/src/gcal-window.c
@@ -1341,9 +1341,17 @@ gcal_window_constructed (GObject *object)
                           "active-date",
                           G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
 
+  /* search related bindings */
   g_object_bind_property (priv->search_button, "active", priv->search_bar, "search-mode-enabled",
                           G_BINDING_BIDIRECTIONAL);
 
+  g_object_bind_property (priv->search_bar, "search-mode-enabled", priv->back_button, "visible",
+                          G_BINDING_DEFAULT | G_BINDING_INVERT_BOOLEAN);
+  g_object_bind_property (priv->search_bar, "search-mode-enabled", priv->today_button, "visible",
+                          G_BINDING_DEFAULT | G_BINDING_INVERT_BOOLEAN);
+  g_object_bind_property (priv->search_bar, "search-mode-enabled", priv->forward_button, "visible",
+                          G_BINDING_DEFAULT | G_BINDING_INVERT_BOOLEAN);
+
   /* signals connection/handling */
   /* HACK to ensure proper destroy of search-view widget */
   g_signal_connect_swapped (priv->views_stack, "destroy",