change_wallpaper

echo "set_wallpaper()" | awesome-client

display-monitor.service

[Unit]
Description=Display monitor

[Service]
ExecStart=/home/ftakai/bin/monitor-display

[Install]
WantedBy=default.target

monitor-display

#!/usr/bin/python2

import glib
from pyudev import Context, Monitor
from pyudev.glib import GUDevMonitorObserver as MonitorObserver

def device_event(observer, action, device):
    command = "/usr/bin/xrandr -d :0 --output DP1 --auto --left-of LVDS1 --primary".split(" ")
    glib.spawn_async(command)

    command = "/home/ftakai/bin/change_wallpaper".split(" ")
    glib.spawn_async(command)

context = Context()
monitor = Monitor.from_netlink(context)
monitor.filter_by(subsystem='drm')

observer = MonitorObserver(monitor)

observer.connect('device-event', device_event)
monitor.start()

glib.MainLoop().run()

monitor-usb

#!/usr/bin/python2

import glib

from pyudev import Context, Monitor

from pyudev.glib import GUDevMonitorObserver as MonitorObserver

DEVICE_MODEL =u'Realforce_87'

def swapcaps(action):
    command = ['/usr/bin/setxkbmap', '-display', ':0', 'us', 'mac']

    if action == 'remove':
        command.append('-option')
        command.append('ctrl:swapcaps')

    glib.spawn_async(command)

def device_event(observer, action, device):
    if device['ID_MODEL'] != DEVICE_MODEL:
        return

    swapcaps(device.action)

context = Context()
monitor = Monitor.from_netlink(context)

monitor.filter_by(subsystem='usb', device_type='usb_device')
observer = MonitorObserver(monitor)

observer.connect('device-event', device_event)
monitor.start()

if not list(context.list_devices(ID_MODEL=DEVICE_MODEL, device_type='usb_device')):
    swapcaps('remove')
else:
    swapcaps('add')

glib.MainLoop().run()

usb-monitor.service

[Unit]
Description=USB keyboard monitor

[Service]
ExecStart=/home/ftakai/bin/monitor-usb

[Install]
WantedBy=default.target

marius ~
$ ls -la ~/.config/systemd/user/                                                                                                  15:01
total 20
drwxr-xr-x 3 ftakai ftakai 4096 Apr 23  2015 .
drwxr-xr-x 3 ftakai ftakai 4096 Apr 22  2015 ..
drwxr-xr-x 2 ftakai ftakai 4096 Apr 23  2015 default.target.wants
-rw-r--r-- 1 ftakai ftakai  124 Apr 23  2015 display-monitor.service
-rw-r--r-- 1 ftakai ftakai  125 Apr 22  2015 usb-monitor.service

marius ~
$ ls -la ~/.config/systemd/user/default.target.wants                                                                              15:01
total 8
drwxr-xr-x 2 ftakai ftakai 4096 Apr 23  2015 .
drwxr-xr-x 3 ftakai ftakai 4096 Apr 23  2015 ..
lrwxrwxrwx 1 ftakai ftakai   57 Apr 23  2015 display-monitor.service -> /home/ftakai/.config/systemd/user/display-monitor.service
lrwxrwxrwx 1 ftakai ftakai   53 Apr 22  2015 usb-monitor.service -> /home/ftakai/.config/systemd/user/usb-monitor.service```