import color, method, mode
from point import Point

class Which(mode.Fundamental):
    modename = 'Which'
    def __init__(self, w):
        mode.Fundamental.__init__(self, w)
        old_mode = w.buffer.method.old_window.mode
        self.bindings = dict(old_mode.bindings)
    def handle_token(self, t):
        '''self.handle_token(token): handles input "token"'''
        self.window.active_point = None
        try:
            act = mode.Handler.handle_token(self, t)
            if act is None:
                return
            else:
                s = '%r is %r: %s' % (self.last_sequence, act.name, act.help)
                self.window.application.set_error(s)
                self._end()
        except Exception, e:
            if mode.DEBUG:
                raise
            else:
                err = "%s in mode '%s'" % (e, self.name())
                self.window.application.set_error(err)
                self._end()
    def _end(self):
        self.window.application.close_mini_buffer()
        self.window.buffer.method.old_cursor = None
        self.window.buffer.method.old_window = None

install = Which.install