steam_window_watcher_cronjob.sh

steam_window_watcher_cronjob.sh

#!/bin/bash
set -e
# Depends on https://extensions.gnome.org/extension/4724/window-calls/

# Add to crontab:
# touch /tmp/www.log
# crontab -e
# * * * * * export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus && /home/brian/dev/linux/window_watcher_cronjob.sh >> /tmp/wwc.log 2>&1

# V1 at bottom -- checks if window was opened and now closed
# WHy V2 is better? pkill is a noop if no match, so KISS

# V2 - kill if window not open
v2() {
    state=$(/usr/bin/gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/Shell/Extensions/Windows --method org.gnome.Shell.Extensions.Windows.List)
    steam_is_open=$(echo "$state" | grep "Steam" || true)
    if [[ -z "$steam_is_open" ]]; then
        # echo `date` - killing
        pkill steam
    else
        : # echo `date` - nokilling
    fi
}
v2

# V1 - kill if window was opened and now closed
v1() {
    CACHE_MEM_FILE=/dev/shm/window_watcher_last
    touch $CACHE_MEM_FILE

    last=$(< $CACHE_MEM_FILE)

    next=$(gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/Shell/Extensions/Windows --method org.gnome.Shell.Extensions.Windows.List)

    steam_is_open=$(echo "$next" | grep "Steam")
    steam_was_open=$(echo "$last" | grep "Steam")
    if [[ -n "$steam_is_open" ]]; then
        : # Steam is open
        echo open
    elif [[ -n "$steam_was_open" ]]; then
        #pkill steam # Steam exited
        echo closed
    fi
    last=$next

    printf '%s' "$next" > $CACHE_MEM_FILE
}