Attempt to transition to Vala

src/ag-header-bar.vala

@@ -0,0 +1,13 @@
+namespace Ag {
+
+    class HeaderBar: Gtk.HeaderBar {
+        public void clear()
+        {
+            custom_title = null;
+
+            foreach (Gtk.Widget w in get_children()) {
+                w.hide();
+            }
+        }
+    }
+}

src/ag-window.c

@@ -1120,12 +1120,12 @@ ag_window_save_action(GSimpleAction *action,
                     _("Unable to save: %s"),
                     err->message
                 );
-        } else {
+        }
+
         ag_db_chart_save_unref(priv->saved_data);
         priv->saved_data = save_data;
     }
 }
-}
 
 static void
 ag_window_close_action(GSimpleAction *action,

src/widgets.vala

@@ -0,0 +1,13 @@
+namespace Ag {
+
+    public class HeaderBar : Gtk.HeaderBar {
+        public void clear()
+        {
+            custom_title = null;
+
+            foreach (Gtk.Widget w in get_children()) {
+                w.hide();
+            }
+        }
+    }
+}