[gedit/libgpe] Fix fallback method usage in python to avoid infinite loop.

[Steve Frécinaux <sfre src gnome org>]

commit e8946f420430e82dcc00df693b598688c27b006e
Author: Steve Frécinaux <code istique net>
Date:   Wed Nov 4 19:22:43 2009 +0100

    Fix fallback method usage in python to avoid infinite loop.
    
    If you implement do_activate but chain up to the parent, then you could
    have ended up in an infinite loop as the plugin methods without the do_
    prefix are actually present in gedit.Plugin and end up calling the do_
    method. This fixes it.

 bindings/python/__init__.py |   24 +++++++++++-------------
 1 files changed, 11 insertions(+), 13 deletions(-)
---
diff --git a/bindings/python/__init__.py b/bindings/python/__init__.py
index acbf263..bec07de 100644
--- a/bindings/python/__init__.py
+++ b/bindings/python/__init__.py
@@ -23,20 +23,18 @@ from gedit._gedit import *
 import gobject
 from gedit import _gedit
 
-class Plugin(_gedit.Plugin):
-    def do_activate(self, window):
-        if hasattr(self, 'activate'):
-            self.activate(window)
+def _proxy_plugin_method(method_name):
+    def method(self, window):
+        child_method = getattr(self.__class__, method_name)
+        parent_method = getattr(_gedit.Plugin, method_name)
+        if child_method != parent_method:
+            return child_method(self, window)
+    return method
 
-    def do_deactivate(self, window):
-        if hasattr(self, 'deactivate'):
-            self.deactivate(window)
 
-    def do_update_ui(self, window):
-        if hasattr(self, 'update_ui'):
-            self.update_ui(window)
+class Plugin(_gedit.Plugin):
+    do_activate = _proxy_plugin_method('activate')
+    do_deactivate = _proxy_plugin_method('deactivate')
+    do_update_ui = _proxy_plugin_method('update_ui')
 
 gobject.type_register(Plugin)
-
-# Make it harder to access the actual module...
-del _gedit