External Numpad

numpad.py

import os
import yaml
import logging
import logging.handlers
import subprocess
from evdev import InputDevice, categorize, ecodes
import i3ipc

# Setup logging to syslog
logger = logging.getLogger('WindowLogger')
logger.setLevel(logging.DEBUG)  # Set to DEBUG for extensive logging
handler = logging.handlers.SysLogHandler(address='/dev/log')
logger.addHandler(handler)
formatter = logging.Formatter('%(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)

console_handler = logging.StreamHandler()
console_handler.setFormatter(formatter)
logger.addHandler(console_handler)

def load_shortcuts(file_path):
    with open(file_path, 'r') as file:
        return yaml.safe_load(file)

def execute_command(command):
    os.environ['DISPLAY'] = ':0'
    subprocess.run(command)

def get_active_window_info():
    try:
        window_id = subprocess.run(['xdotool', 'getactivewindow'], capture_output=True, text=True).stdout.strip()
        window_name = subprocess.run(['xdotool', 'getwindowname', window_id], capture_output=True, text=True).stdout.strip()
        logger.debug(f"Active window ID: {window_id}, Name: {window_name}")
        return window_id, window_name
    except Exception as e:
        logger.error(f"Error retrieving window information: {str(e)}")
        return None, None

def switch_workspace(workspace):
    i3.command(f'workspace {workspace}')

def handle_key_event(event, shortcuts, window_name):
    if event.type == ecodes.EV_KEY:
        key = categorize(event)
        if key.keystate == key.key_down:  # Key press
            keycode = key.keycode
            if keycode in shortcuts:
                default_action = None
                for shortcut in shortcuts[keycode]:
                    if 'ifwindow' in shortcut:
                        match_type = shortcut.get('match_type', 'exact')
                        if match_type == 'start' and not window_name.startswith(shortcut['ifwindow']):
                            continue
                        elif match_type == 'end' and not window_name.endswith(shortcut['ifwindow']):
                            continue
                        elif match_type == 'contain' and shortcut['ifwindow'] not in window_name:
                            continue
                        elif match_type == 'exact' and shortcut['ifwindow'] != window_name:
                            continue
                        logger.debug(f"Selected shortcut: {shortcut}")
                        if 'function' in shortcut:
                            globals()[shortcut['function']](shortcut.get('arg'))
                        elif 'command' in shortcut:
                            execute_command(shortcut['command'])
                        return
                    elif 'ifwindow' not in shortcut:
                        default_action = shortcut
                if default_action:
                    logger.debug(f"Selected shortcut: {default_action}")
                    if 'function' in default_action:
                        globals()[default_action['function']](default_action.get('arg'))
                    elif 'command' in default_action:
                        execute_command(default_action['command'])

# Load keyboard shortcuts from YAML file
shortcuts = load_shortcuts('shortcuts.yaml')

# Get the device location
device_location = shortcuts.pop('device', '/dev/input/event2')

# Create the connection to i3
i3 = i3ipc.Connection()

# Specify the device
dev = InputDevice(device_location)
dev.grab()


# Loop to handle key events
for event in dev.read_loop():
    window_id, window_name = get_active_window_info()
    logger.info(f"Active window ID: {window_id}, Name: {window_name}")
    handle_key_event(event, shortcuts, window_name)

requirements.txt

certifi==2024.2.2
charset-normalizer==3.3.2
evdev==1.7.1
i3ipc==2.2.1
idna==3.7
python-xlib==0.33
PyYAML==6.0.1
requests==2.31.0
six==1.16.0
urllib3==2.2.1

shortcuts.yaml

device: '/dev/input/event2'
KEY_KP1:
  - command: ['i3-msg', 'workspace', 'NP1']
KEY_KP2:
  - command: ['i3-msg', 'workspace', 'NP2']
KEY_KP3:
  - command: ['i3-msg', 'workspace', 'NP3']
KEY_KP4:
  - command: ['i3-msg', 'workspace', 'NP4']
KEY_KP5:
  - command: ['i3-msg', 'workspace', 'NP5']
KEY_KP6:
  - command: ['i3-msg', 'workspace', 'NP6']
KEY_KP7:
  - command: ['i3-msg', 'workspace', 'NP7']
KEY_KP8:
  - command: ['i3-msg', 'workspace', 'NP8']
KEY_KP9:
  - command: ['i3-msg', 'workspace', 'NP9']
KEY_KP0:
  - command: ['i3-msg', 'workspace', 'NP10']
KEY_KPMINUS:
  - command: ['xdotool', 'key', 'Shift+Ctrl+a']
    ifwindow: 'Terminal'
    match_type: 'start'
  - command: ['xdotool', 'key', 'Shift+a']
    ifwindow: 'Firefox'
    match_type: 'end'
  - command: ['xdotool', 'key', 'Shift+b']
    ifwindow: 'Browser'
    match_type: 'contain'