from typing import Callable

from raven.plugins.domain.raction import RAction


class RMenu():
    def __init__(self, label: str, icon_from_theme: str = ""):
        super(RMenu, self).__init__()
        self.label = label
        self.actions = []
        self.listeners = []
        self.icon_from_theme = icon_from_theme;

    def add_action(self, action: RAction):
        self.actions.append(action)
        self._notify()

    def clear(self):
        self.actions.clear()
        self._notify()

    def _notify(self):
        for listener in self.listeners:
            listener()

    def add_change_listener(self, listener: Callable[[], None]):
        self.listeners.append(listener)