[orca] Sanity check that we have a desktop to get before we attempt to get its apps.

[Joanmarie Diggs <joanied src gnome org>]

commit 7397a5fb69798572681354c4f23f5a1883b2d258
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Mar 13 12:25:19 2012 -0400

    Sanity check that we have a desktop to get before we attempt to get its apps.

 src/orca/orca.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/orca.py b/src/orca/orca.py
index e2f2f9a..8f7be1a 100644
--- a/src/orca/orca.py
+++ b/src/orca/orca.py
@@ -136,7 +136,7 @@ class Options(argparse.Namespace):
         if self.showHelp:
             self._printMessageAndExit(parser.print_help)
 
-        if self.listApps:
+        if self.listApps and self.desktopRunning:
             apps = filter(lambda x: x != None, pyatspi.Registry.getDesktop(0))
             names = [app.name for app in apps]
             message = "\n".join(names)