vlc_heartbeat,sh

#!/bin/bash
while sleep 55
do
    players_list=$(gdbus call --session --dest org.freedesktop.DBus \
        --object-path / --method org.freedesktop.DBus.ListNames | \
        awk 'BEGIN { RS=","; } /org.mpris.MediaPlayer2./ { gsub(/[\[\]()\x27]/, ""); print $1; }')

    for player in $players_list
    do
        state=$(gdbus call --session \
            --dest $player \
            --object-path /org/mpris/MediaPlayer2 \
            --method org.freedesktop.DBus.Properties.Get \
            "org.mpris.MediaPlayer2.Player" \
            "PlaybackStatus")

        fullscreen=$(gdbus call --session \
            --dest $player \
            --object-path /org/mpris/MediaPlayer2 \
            --method org.freedesktop.DBus.Properties.Get \
            "org.mpris.MediaPlayer2" \
            "Fullscreen")

        if [ "$state" = "(<'Playing'>,)" -a "$fullscreen" = "(<true>,)" ]
        then
            echo $player $state $fullscreen send signal
            xscreensaver-command -deactivate
            break
        else
            echo $player $state $fullscreen
        fi
    done
done