close all windows and optionally wait until some of them close

close-all-windows

#!/bin/bash

# close all windows and optionally wait until some of them close
# Copyright (C) 2012  Vyacheslav Levit
# License: GPLv3 or later. See <http://www.gnu.org/licenses/>


function usage
{
    echo "Usage: ${0##*/} [--wait [window_classes]]"
}


function some_window_open
{
    count=0
    while read -r line ; do
        count=$((count+1))
        for c in "${classes[@]}" ; do
            lc="$(tr [:upper:] [:lower:] <<< "$c")"
            class="$(awk '{ split($3, class, "."); \
                            print tolower(class[2])}' <<< "$line")"
            [[ "$lc" == "$class" ]] && return 0
        done
    done < <(wmctrl -xl)
    (( count != 0 && ${#classes[@]} == 0 )) && return 0 || return 1
}


function kill_all_windows
{
    wmctrl -l | while read -r line
    do
        wmctrl -ic $(cut -d ' ' -f 1 <<< "$line")
    done
}


function process_args
{
    wait=0
    if (( $# > 0 )) ; then
        case $1 in
            -h|--help)
                usage ; exit 0 ;;
            --wait)
                wait=1 ; shift ; classes=("$@") ;;
            *)
                usage ; exit 2;
        esac
    fi
}


function main
{
    process_args "$@"
    kill_all_windows
    if [[ "$wait" == 1 ]] ; then
        while some_window_open ; do
            sleep 1
        done

    fi
}

main "$@"