[Pyobjc-dev] [ pyobjc-Bugs-678759 ] Subclassing NSUndoManager fails

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Bugs item #678759, was opened at 2003-02-01 11:16
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=114534&aid=678759&group_id=14534

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: David Eppstein (eppstein)
Assigned to: Nobody/Anonymous (nobody)
Summary: Subclassing NSUndoManager fails

Initial Comment:
I attempted to create a python subclass of
NSUndoManager, and set it as my document's undoManager with
doc.setUndoManager_(MyUndoManager.alloc().init())

However, the new manager fails to work -- whenever I
try running
prepareWithInvocationTarget_(target).someMethod()
I get AttributeError: No selector someMethod

Changing MyUndoManager to NSUndoManager in the
setUndoManager_ call causes the AttributeError to go away.
My subclass is not shadowing
prepareWithInvocationTarget_ nor any related method of
NSUndoManager (I wanted merely to change the behavior
of the undo() and redo() calls).  Is
prepareWithInvocationTarget_ doing some magic that
needs to be propagated to subclasses?


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=114534&aid=678759&group_id=14534