From f63d7dd22618af7e229885d183f482829e96b2a3 Mon Sep 17 00:00:00 2001
From: Vincent Vinet <vince.vinet@gmail.com>
Date: Tue, 03 Mar 2009 15:53:02 +0000
Subject: Remove the Mixin Action classes. They were never meant to be.

Hope they don't feel too rejected. Because they are.
---
(limited to 'src/sugar/tutorius/actions.py')

diff --git a/src/sugar/tutorius/actions.py b/src/sugar/tutorius/actions.py
index 68ec374..34802c3 100644
--- a/src/sugar/tutorius/actions.py
+++ b/src/sugar/tutorius/actions.py
@@ -38,49 +38,12 @@ class Action(object):
         pass #Should raise NotImplemented?
 
 
-class DoOnceMixin(object):
-    """Mixin class used to have an action be called only on the first do().
-    
-    To use this mixin, create a new class that derives from this and from
-    the action you want executed only once.
-
-    class ConcreteOnceAction(DoOnceMixin, ConcreteAction):
-        pass
+class OnceWrapper(object):
+    """
+    Wraps a class to perform an action once only
 
     This ConcreteActions's do() method will only be called on the first do()
     and the undo() will be callable after do() has been called
-
-    Maybe it would be better off just using a wrapper class instead of this.
-
-    But it was fun to play with.
-
-    Did I mention the wrapper is 25 lines "south" of here? Besides, this mixin
-    class fails at __init__ ..... mixins... right....narwhals!
-    """
-    def __init__(self ):
-        super(DoOnceMixin, self).__init__()
-        self._called = False
-        self._need_undo = False
-
-    def do(self):
-        """
-        Do the action only on the first time
-        """
-        if not self._called:
-            self._called = True
-            super(DoOnceMixin, self).do()
-            self._need_undo = True
-            
-    def undo(self):
-        """
-        Undo the action if it's been done
-        """
-        if self._need_undo:
-            super(DoOnceMixin, self).undo()
-            self._need_undo = False
-
-class OnceWrapper(object):
-    """Wraps a class to perform an action once only
     """
     def __init__(self, action):
         self._action = action
@@ -136,7 +99,3 @@ class DialogMessage(Action):
             self._dialog = None
         
 
-
-class OnceDialogMessage(DoOnceMixin, DialogMessage):
-    """Broken!"""
-    pass
--
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