sway_test.py

#!/usr/bin/python
import socket
import os

i3ipc_magic = b'i3-ipc'

def send_packet(client, type, msg):
    pac = i3ipc_magic + len(msg).to_bytes(4, 'little')
    pac += type.to_bytes(4, 'little') + msg
    client.send(pac)

def recv_packet(client):
    pac = client.recv(len(i3ipc_magic) + 8)
    assert pac[:len(i3ipc_magic)] == i3ipc_magic
    pac = pac[len(i3ipc_magic):]
    ln = int.from_bytes(pac[:4], 'little')
    type = int.from_bytes(pac[4:8], 'little')
    msg = b''
    while ln > 0:
        msg += client.recv(1)
        ln -= 1
    return type, msg

path = os.popen('sway --get-socketpath').read().strip()
print(path)

with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as c:
    c.connect(path)
    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as c2:
        c2.connect(path)

        send_packet(c2, 2, b'["workspace"]') # 2 -- subscribe
        print(recv_packet(c2))

        for _ in range(100):
            send_packet(c, 0, b'workspace "next_on_output"') # 0 -- command
            print(recv_packet(c))