Switch input-remapper presets

readme.md

Usage:

Cycle toggle all presets

$ switch-preset-mxmaster3s.sh

Toggle to specific preset

$ switch-preset-mxmaster3s.sh <PRESETNAME>

e.g.: switch-preset-mxmaster3s.sh copypaste

switch-preset-mxmaster3s.sh

#!/bin/bash

# Cycle through input-remapper presets
# https://github.com/sezanzeb/input-remapper

## First create presets in input-remapper GUI. Do not use spaces in presets names.
## Edit your device name and default preset name here:
######### Customize this config #######
device='Logitech USB Receiver' # or e.g. 'MX Anywhere 3S Mouse' # See your device name in the GUI
configdir=~/'.config/input-remapper-2'
defaultpreset='copypaste'
#######################################

## Store all arguments in a bash array:
array=("$@")
## Find out length of an array:
len="${#array[@]}"
## Get the last argument (the last one is preset name):
_last="${array[$len-1]}"
## Extract and store all arguments before last:
#args_="${array[@]:0:$len-1}"
## Extract and store all arguments except first & last:
#_args_="${array[@]:1:$len-2}"


presetsocket="${configdir}/presets/${device}/curpreset"
presets=($(cd "${configdir}/presets/${device}/"; find -P -maxdepth 1 -type f -name "*.json" -printf '%f\n'))
curpreset=
nextpreset=

if [ ${#presets[@]} -gt 1 ]; then
    # Define a current preset
    if ! [ -f "$presetsocket" ]; then
        firstrun=1
        nextpreset="$defaultpreset"
        curpreset="$nextpreset"
        echo "$curpreset" > "$presetsocket"
    else
        curpreset="$(cat "$presetsocket" | head -1)"
    fi
    
    for i in "${!presets[@]}"; do
        # match the current preset in list of the presets and set the nextpreset to the next one
        case "${presets[$i]%.json}" in
            "$curpreset")
                j=$(($i+1))
                # if we rich the end of the list of presets set the nextpreset to the first preset in the list
                if [ $j -eq ${#presets[@]} ]; then
                    nextpreset="${presets[0]%.json}"
                # or set the nextpreset to the next one in the list
                else
                    nextpreset="${presets[$j]%.json}"
                fi
            ;;
        esac
    done

    # Start the input-remapper daemon if it's not running
    pid="$(pgrep input-remapper | head -1)"
    if ! (($pid)); then
        pkexec input-remapper-control \
            --command start-reader-service

        pkexec input-remapper-control \
            --command start-daemon

        sleep 0.3s
        pid="$(pgrep input-remapper | head -1)"
    fi

    # Switch the preset
    echo Switching preset...
    {
    if (($pid)); then
        # stop the current running preset
        (($firstrun)) || input-remapper-control \
            --config-dir "$configdir" \
            --command stop \
            --preset "$curpreset" \
            --device "$device" >& /dev/null
        # start the next one in the list
        input-remapper-control \
            --config-dir "$configdir" \
            --command start \
            --preset "${_last:-$nextpreset}" \
            --device "$device" >& /dev/null
    fi
    } &
    # write the actual current preset name to the file (curpreset)
    [ -z "$_last" ] && echo "$nextpreset" | tee "$presetsocket"
    notify-send "input-remapper" "${_last:-$nextpreset}" -a "input-remapper" -i "input-mouse"

fi