[file-roller] ignore other calls to fr_window_close for the same window

[Paolo Bacchilega <paobac src gnome org>]

commit 3a02663aa180155c833018ecdbece3c0df8aafcd
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Nov 25 15:33:43 2012 +0100

    ignore other calls to fr_window_close for the same window

 src/fr-window.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/fr-window.c b/src/fr-window.c
index 343cba4..1f6e2e7 100644
--- a/src/fr-window.c
+++ b/src/fr-window.c
@@ -596,6 +596,9 @@ fr_window_close (FrWindow *window)
 	if (window->priv->activity_ref > 0)
 		return;
 
+	if (window->priv->closing)
+		return;
+
 	window->priv->closing = TRUE;
 
 	if (gtk_widget_get_realized (GTK_WIDGET (window))) {