[Bf-extensions-cvs] SVN commit: /data/svn/bf-extensions [3893] trunk/py/scripts/addons/ space_view3d_screencast_keys.py: fix [#30740] N-panel addon toggle operators crash Blender after screen change ( Fatal Python error: GC object already tracked)

[Campbell Barton]

Revision: 3893
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-extensions&revision=3893
Author:   campbellbarton
Date:     2012-10-26 06:50:04 +0000 (Fri, 26 Oct 2012)
Log Message:
-----------
fix [#30740] N-panel addon toggle operators crash Blender after screen change (Fatal Python error: GC object already tracked)

Modified Paths:
--------------
    trunk/py/scripts/addons/space_view3d_screencast_keys.py

Modified: trunk/py/scripts/addons/space_view3d_screencast_keys.py
===================================================================
--- trunk/py/scripts/addons/space_view3d_screencast_keys.py	2012-10-25 18:47:07 UTC (rev 3892)
+++ trunk/py/scripts/addons/space_view3d_screencast_keys.py	2012-10-26 06:50:04 UTC (rev 3893)
@@ -506,7 +506,8 @@
     bl_description = "Display keys pressed in the 3D View"
     last_activity = 'NONE'
 
-    _handle = None
+    _handle_a = None
+    _handle_b = None
     _timer = None
 
     def modal(self, context, event):
@@ -575,7 +576,8 @@
         if not context.window_manager.screencast_keys_keys:
             # stop script
             context.window_manager.event_timer_remove(self._timer)
-            context.region.callback_remove(self._handle)
+            context.region.callback_remove(self._handle_a)
+            context.region.callback_remove(self._handle_b)
             return {'CANCELLED'}
 
         return {'PASS_THROUGH'}
@@ -583,7 +585,8 @@
     def cancel(self, context):
         if context.window_manager.screencast_keys_keys:
             context.window_manager.event_timer_remove(self._timer)
-            context.region.callback_remove(self._handle)
+            context.region.callback_remove(self._handle_a)
+            context.region.callback_remove(self._handle_b)
             context.window_manager.screencast_keys_keys = False
         return {'CANCELLED'}
 
@@ -597,9 +600,9 @@
                 self.mouse = []
                 self.mouse_time = []
                 ScreencastKeysStatus.overall_time = []
-                self._handle = context.region.callback_add(draw_callback_px_box,
+                self._handle_a = context.region.callback_add(draw_callback_px_box,
                     (self, context), 'POST_PIXEL')
-                self._handle = context.region.callback_add(draw_callback_px_text,
+                self._handle_b = context.region.callback_add(draw_callback_px_text,
                     (self, context), 'POST_PIXEL')
                 self._timer = context.window_manager.event_timer_add(0.075,
                     context.window)