[pitivi] medialibrary: Use a local variable instead of a field for the error dialog box

[Mathieu Duponchelle <mathieudu src gnome org>]

commit 86d8cf2391ea554e9447fd85cd7cd029c4bdff6c
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Thu Dec 5 00:03:26 2013 +0100

    medialibrary: Use a local variable instead of a field for the error dialog box

 pitivi/medialibrary.py |   20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)
---
diff --git a/pitivi/medialibrary.py b/pitivi/medialibrary.py
index b15d904..48e447f 100644
--- a/pitivi/medialibrary.py
+++ b/pitivi/medialibrary.py
@@ -651,13 +651,11 @@ class MediaLibraryWidget(Gtk.VBox, Loggable):
 
     ## Error Dialog Box callbacks
 
-    def _errorDialogBoxCloseCb(self, unused_dialog):
-        self._error_dialogbox.destroy()
-        self._error_dialogbox = None
+    def _errorDialogBoxCloseCb(self, dialog):
+        dialog.destroy()
 
-    def _errorDialogBoxResponseCb(self, unused_dialog, unused_response):
-        self._error_dialogbox.destroy()
-        self._error_dialogbox = None
+    def _errorDialogBoxResponseCb(self, dialog, unused_response):
+        dialog.destroy()
 
     ## Import Sources Dialog Box callbacks
 
@@ -774,12 +772,12 @@ class MediaLibraryWidget(Gtk.VBox, Loggable):
         else:
             msgs = (_("Error while analyzing a file"),
                     _("The following file can not be used with Pitivi."))
-        self._error_dialogbox = FileListErrorDialog(*msgs)
-        self._error_dialogbox.connect("close", self._errorDialogBoxCloseCb)
-        self._error_dialogbox.connect("response", self._errorDialogBoxResponseCb)
+        error_dialogbox = FileListErrorDialog(*msgs)
+        error_dialogbox.connect("close", self._errorDialogBoxCloseCb)
+        error_dialogbox.connect("response", self._errorDialogBoxResponseCb)
         for uri, reason, extra in self._errors:
-            self._error_dialogbox.addFailedFile(uri, reason, extra)
-        self._error_dialogbox.window.show()
+            error_dialogbox.addFailedFile(uri, reason, extra)
+        error_dialogbox.window.show()
         # Reset the error list, since the user has read them.
         self._resetErrorList()