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Check if handler is available for new mode

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Florian Bruhin 2014-04-23 23:23:30 +02:00
parent 5385307582
commit e56d33badc
1 changed files with 2 additions and 0 deletions
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qutebrowser/utils/modemanager.py
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@ -94,6 +94,8 @@ class ModeManager(QObject):
""" """
oldmode = self.mode oldmode = self.mode
logging.debug("Switching mode: {} -> {}".format(oldmode, mode)) logging.debug("Switching mode: {} -> {}".format(oldmode, mode))
if mode not in self._handlers:
raise ValueError("No handler for mode {}".format(mode))
if oldmode is not None: if oldmode is not None:
self.leaved.emit(oldmode) self.leaved.emit(oldmode)
self.mode = mode self.mode = mode