[hamster-applet/gnome-2-30] don't die if clicked in blank

[Toms Baugis <tbaugis src gnome org>]

commit bd0281879a02fc7503f0f6f17e6ed6653a425686
Author: Toms Bauģis <toms baugis gmail com>
Date:   Wed May 5 21:08:21 2010 +0100

    don't die if clicked in blank

 src/hamster/widgets/tags.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/hamster/widgets/tags.py b/src/hamster/widgets/tags.py
index c6865f5..038c02d 100644
--- a/src/hamster/widgets/tags.py
+++ b/src/hamster/widgets/tags.py
@@ -247,6 +247,9 @@ class TagBox(graphics.Area):
         self.redraw_canvas()
 
     def on_tag_click(self, widget, regions):
+        if not regions:
+            return
+
         tag = regions[0]
         if tag in self.selected_tags:
             #self.selected_tags.remove(tag)