mopidy-touchscreen/mopidy_touchscreen/screen_manager.py

from .main_screen import MainScreen
import pygame

class ScreenManager():

	def __init__(self,size):
		self.screen_size=size
		self.screens=[MainScreen(size,self)]
		self.track=None

	def update(self,core):
		return self.screens[0].update(core)

	def track_started(self,track):
		self.track=track