[gnome-clocks/wip/vala] mmm, be more careful

[Paolo Borelli <pborelli src gnome org>]

commit c97aea9c2de5e5103ec7bedf4c85720d76650d57
Author: Paolo Borelli <pborelli gnome org>
Date:   Sun Feb 17 11:56:59 2013 +0100

    mmm, be more careful

 src/alarm.vala |    4 +++-
 src/world.vala |    4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/alarm.vala b/src/alarm.vala
index 8996be5..2c22058 100644
--- a/src/alarm.vala
+++ b/src/alarm.vala
@@ -442,7 +442,9 @@ public class MainPanel : Gd.Stack, Clocks.Clock {
         add (content_view);
 
         content_view.notify["is-empty"].connect (() => {
-            update_toolbar ();
+            if (visible_child != null) {
+                update_toolbar ();
+            }
         });
 
         standalone = new StandalonePanel ();
diff --git a/src/world.vala b/src/world.vala
index a87fff4..4dd5287 100644
--- a/src/world.vala
+++ b/src/world.vala
@@ -282,7 +282,9 @@ public class MainPanel : Gd.Stack, Clocks.Clock {
         });
 
         content_view.notify["is-empty"].connect (() => {
-            update_toolbar ();
+            if (visible_child != null) {
+                update_toolbar ();
+            }
         });
 
         standalone = new StandalonePanel ();