Bash script to toggle the enabled status on your touchpad while running under KDE Plasma 5

toggle_touchpad.sh

#!/bin/bash

SERVICE="org.kde.KWin"
DBUS_PATH="/org/kde/KWin/InputDevice"
INTERFACE="org.kde.KWin.InputDevice"
METHOD_GET="org.freedesktop.DBus.Properties.Get"
METHOD_SET="org.freedesktop.DBus.Properties.Set"

function find_touchpad {
    DM_INTERFACE="org.kde.KWin.InputDeviceManager"
    DM_PROPERTY="devicesSysNames"


    for sysname in $(qdbus "$SERVICE" "$DBUS_PATH" "$METHOD_GET" "$DM_INTERFACE" "$DM_PROPERTY"); do
        is_touchpad=$(qdbus "$SERVICE" "${DBUS_PATH}/${sysname}" "$METHOD_GET" "$INTERFACE" touchpad)

        if [ "$is_touchpad" == "true" ]; then
            echo "$sysname"
            break
        fi
    done
}

function toggle_touchpad {
    DBUS_PATH="${DBUS_PATH}/$(find_touchpad)"
    PROPERTY="enabled"

    # Get the current status of the touchpad
    status=$(qdbus "$SERVICE" "$DBUS_PATH" "$METHOD_GET" "$INTERFACE" "$PROPERTY")

    # Flip the status
    status=$([[ "$status" == "false" ]] && echo true || echo false)

    # Set the new status
    qdbus "$SERVICE" "$DBUS_PATH" "$METHOD_SET" "$INTERFACE" "$PROPERTY" "$status"
}

toggle_touchpad

Updated to abstract a bit more

Thanks for this, this is a nice wayland solution to replace xinput stuff. I've incorporated it in my fusuma config to enable/disable my trackpad based on a gesture and/or timeout: https://gist.github.com/digitalsignalperson/34c1df16fdcd4b87c873aaba29d70b22

Hey, that's great! I'm glad it's useful to someone else.

Perfectly! It would be great to get a similar one for wireless.