Merge lp:~evfool/update-manager/handlewarning into lp:update-manager

[Robert Roth]

This branch eliminates a warning when changing the selected packages quickly. In this case the downloads start for each packages changelog ad when they are finished the handler should get disconnected, but because we have changed the selected package, we get a warning in the console about the handler not being connected. So before disconnecting a handler, I have added a check to see if it's still connected. Fixes bug #133139.

=== modified file 'UpdateManager/UpdateManager.py'
--- UpdateManager/UpdateManager.py	2011-08-19 10:14:50 +0000
+++ UpdateManager/UpdateManager.py	2011-09-06 05:18:24 +0000
@@ -465,7 +465,8 @@
             Gtk.main_iteration()
         # download finished (or canceld, or time-out)
         button.hide()
-        button.disconnect(id);
+        if button.handler_is_connected(id):
+            button.disconnect(id)
     # check if we still are in the right pkg (the download may have taken
     # some time and the user may have clicked on a new pkg)
     path  = widget.get_cursor()[0]