#!/usr/bin/env python3
import Xlib
import Xlib.display
from Xlib import X, XK, protocol
from Xlib.ext.xtest import fake_input
import time

def prepare_event_params(window, state, keycode):
    return {
        'time': int(time.time()),
        'root': display.screen().root,
        'window': window,
        'same_screen': 0, 'child': Xlib.X.NONE,
        'root_x': 0, 'root_y': 0, 'event_x': 0, 'event_y': 0,
        'state': state,
        'detail': keycode
    }


Shift = Xlib.X.ShiftMask
Ctrl = Xlib.X.ControlMask
Alt = Xlib.X.Mod1Mask
CapsLock = Xlib.X.LockMask
NumLock = Xlib.X.Mod2Mask
ScrollLock = Xlib.X.Mod3Mask
Win = Xlib.X.Mod4Mask

display = Xlib.display.Display()
root = display.screen().root

root.change_attributes(event_mask=X.KeyPressMask | X.KeyReleaseMask)
keycode_2 = display.keysym_to_keycode(XK.XK_2)
keycode_w = display.keysym_to_keycode(XK.XK_w)
modifiers = NumLock | Ctrl
root.grab_key(keycode_2, modifiers, 1, X.GrabModeAsync, X.GrabModeAsync)

while True:
    event = root.display.next_event()
    if event.type == X.KeyRelease:
        if event.detail == keycode_2 and modifiers == modifiers:
            window = display.get_input_focus()._data["focus"]
            event = protocol.event.KeyPress(**prepare_event_params(window, NumLock, keycode_w))
            window.send_event(event, propagate=True)
            event = protocol.event.KeyRelease(**prepare_event_params(window, NumLock, keycode_w))
            window.send_event(event, propagate=True)
            display.sync()