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get_active should return None if no history object exists

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svn: r15037
This commit is contained in:
Nick Hall 2010-04-05 16:14:26 +00:00
parent 844002e312
commit ffffb7047c
1 changed files with 1 additions and 1 deletions
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src/DisplayState.py
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@ -413,7 +413,7 @@ class DisplayState(gen.utils.Callback):
navigation type and group. navigation type and group.
""" """
history = self.get_history(nav_type, nav_group) history = self.get_history(nav_type, nav_group)
return history.present() return history.present() if history else None
def set_active(self, handle, nav_type, nav_group=0): def set_active(self, handle, nav_type, nav_group=0):
""" """