Listener for i3 IPC events

listener.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import asyncio
from i3ipc.aio import Connection
from i3ipc import Event

def onWindowEvent(i3, e):
    if e.ipc_data["container"]["urgent"]:
        print("Urgent\n\n\n")
    print(f"Data: {e.ipc_data}")

async def main():
    i3 = await Connection().connect()

    i3.on(Event.WINDOW, onWindowEvent)

    await i3.main()

if __name__ == "__main__":
    asyncio.run(main())

window.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import tkinter as tk
from ewmh import EWMH

ewmh = EWMH()

window = tk.Tk()
window.attributes('-type', 'dialog')  # Floating
entry = tk.Entry(window)
entry.pack()

win = None

# Grab focus and save reference to window
def grab_win():
    global win
    window.focus_force()
    entry.focus_set()
    win = ewmh.getActiveWindow()
    print(f"Window name {win.get_wm_name()}")

def set_state():    
    print(f"Setting state for win {win.get_wm_name()}")
    ewmh.setWmState(win, 1, '_NET_WM_STATE_DEMANDS_ATTENTION')
    ewmh.display.flush()

# Once window is shown
window.after(300, grab_win)

# Delay, to allow moving to another workspace/scratchpad
window.after(3000, set_state)

window.mainloop()