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-rw-r--r--plugins/snippets/snippets/singleton.py27
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diff --git a/plugins/snippets/snippets/singleton.py b/plugins/snippets/snippets/singleton.py
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+# Gedit snippets plugin
+# Copyright (C) 2011 Jesse van den Kieboom <jessevdk@gnome.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+class Singleton(type):
+ def __init__(cls, name, bases, dict):
+ super(Singleton, cls).__init__(name, bases, dict)
+ cls.instance = None
+
+ def __call__(cls, *args, **kw):
+ if cls.instance is None:
+ cls.instance = super(Singleton, cls).__call__(*args, **kw)
+
+ return cls.instance