Remap keys on Gnome (E.g. Swap Alt and Ctrl) without screwing up input methods

xkbwime.sh

#! /usr/bin/env bash

ALL_SOURCES="`gsettings get org.gnome.desktop.input-sources sources`"
SOURCE_COUNT="`echo $ALL_SOURCES | tr -d -c ')' | awk '{ print length; }'`"
CURRENT_SOURCE_STR="`gsettings get org.gnome.desktop.input-sources current`"
CURRENT_SOURCE="${CURRENT_SOURCE_STR#uint32 }"

next_source() {
    if [ "$CURRENT_SOURCE" -lt $((SOURCE_COUNT - 1)) ]; then
        gsettings set org.gnome.desktop.input-sources current $((CURRENT_SOURCE + 1))
    else
        gsettings set org.gnome.desktop.input-sources current 0
    fi
}

prev_source() {
    if [ "$CURRENT_SOURCE" -gt 0 ]; then
        gsettings set org.gnome.desktop.input-sources current $((CURRENT_SOURCE - 1))
    else
        gsettings set org.gnome.desktop.input-sources current $((SOURCE_COUNT - 1))
    fi
}

if [ "next" = "$1" ]; then
    next_source
fi

if [ "prev" = "$1" ]; then
    prev_source
fi

sleep 0.005
setxkbmap -option ctrl:swap_lalt_lctl_lwin