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Clear all navigation history on change of database

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svn: r14039
This commit is contained in:
Nick Hall 2010-01-12 01:29:07 +00:00
parent 23c7f9e3f8
commit 4479396c86
1 changed files with 8 additions and 0 deletions
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8
src/DisplayState.py
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@ -345,6 +345,13 @@ class DisplayState(gen.utils.Callback):
# but this connection is still made!
# self.dbstate.connect('database-changed', self.db_changed)
def clear_history(self):
"""
Clear all history objects.
"""
for history in self.history_lookup.values():
history.clear()
def get_history(self, nav_type, nav_group=0):
"""
Return the history object for the given navigation type and group.
@ -381,6 +388,7 @@ class DisplayState(gen.utils.Callback):
def db_changed(self, db):
db.connect('long-op-start', self.progress_monitor.add_op)
self.clear_history()
def set_relationship_class(self):
"""method that rebinds the relationship to the current rel calc