mopidy-touchscreen/mopidy_touchscreen/touch_screen_backend.py

import pykka
import logging

from mopidy import backend


logger = logging.getLogger(__name__)


class TouchScreenBackend(pykka.ThreadingActor, backend.Backend):
    def __init__(self, config, audio):
        super(TouchScreenBackend, self).__init__()
        self.audio = audio

    def on_receive(self, message):
        action = message['action']
        if action == 'volume':
            self.audio.set_volume(message['value'])
        elif action == "mute":
            self.audio.set_mute(message['value'])
        elif action == "random":
            self.audio.set_random(message['value'])