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behave nicer if undo disabled

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This commit is contained in:
Damien Elmes 2008-12-04 01:14:11 +09:00
parent 78f3c8b4ba
commit 02e1fed2ef
1 changed files with 3 additions and 1 deletions
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4
anki/deck.py
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@ -1619,12 +1619,14 @@ insert into undoLog values (null, 'insert into %(t)s (rowid""" % {'t': table}
return self.redoStack[-1][0] return self.redoStack[-1][0]
def undoAvailable(self): def undoAvailable(self):
if not self.undoEnabled:
return
for r in reversed(self.undoStack): for r in reversed(self.undoStack):
if r: if r:
return True return True
def redoAvailable(self): def redoAvailable(self):
return self.redoStack return self.undoEnabled and self.redoStack
def setUndoBarrier(self): def setUndoBarrier(self):
if not self.undoStack or self.undoStack[-1] is not None: if not self.undoStack or self.undoStack[-1] is not None: