Check if handler is available for new mode

2014-04-23 23:23:30 +02:00 · 2014-04-23 23:23:30 +02:00 · e56d33badc
commit e56d33badc
parent 5385307582
1 changed files with 2 additions and 0 deletions
--- a/qutebrowser/utils/modemanager.py
+++ b/qutebrowser/utils/modemanager.py
@ -94,6 +94,8 @@ class ModeManager(QObject):
        """
        oldmode = self.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:
            self.leaved.emit(oldmode)
        self.mode = mode