class CommandLineHandler(object):
def __init__(self):
self.command = ''
self.history = HistoryList()
self.execute = EventHook()
def line_changed(self, line):
if callable(line):
line = line()
self.command = line
self.history.reset()
def previous(self):
try:
self.history.previous()
finally:
self.command = self.history.current
def next(self):
try:
self.history.next()
finally:
self.command = self.history.current
def finish(self):
if self.command == '':
return
self.history.append(self.command)
self.execute.fire(self.command)
def __init__(self):
self.command = ''
self.history = HistoryList()
self.execute = EventHook()