engine: Remove centralized conn.open handling

Move connection opening logic to each caller, since needs are
slightly different.

1 files changed, 8 insertions, 1 deletions

diff --git a/virtManager/error.py b/virtManager/error.py
index 4a913545..99624234 100644
--- a/virtManager/error.py
+++ b/virtManager/error.py
@@ -49,7 +49,14 @@ def _launch_dialog(dialog, primary_text, secondary_text, title,
 
 
 class vmmErrorDialog(vmmGObject):
-    def __init__(self, parent=None):
+    # singleton instance for non-UI classes
+    @classmethod
+    def get_instance(cls):
+        if not cls._instance:
+            cls._instance = cls(None)
+        return cls._instance
+
+    def __init__(self, parent):
         vmmGObject.__init__(self)
         self._parent = parent
         self._simple = None