docker-ubuntu-vnc-desktop/rootfs/usr/share/backgrounds/dynamic.sh
2022-08-06 11:22:54 -04:00

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OLD_FILE=""
DBUS_FILE="/var/log/dbus.txt"
DIR=$(pwd)
export DISPLAY=:1.0
# Wait until dbus is listening.
until [[ $SUCCESS == "TRUE" ]]; do
SUCCESS="FALSE"
if test -f "$DBUS_FILE"; then SUCCESS="TRUE"; DBUS_ADDRESS=$(cat $DBUS_FILE); fi
sleep 1
done
# Export DBUS Variable
echo "DBUS Address: $DBUS_ADDRESS"
export DBUS_SESSION_BUS_ADDRESS="unix:abstract=$DBUS_ADDRESS"
# Loop and check if its time to update the background
while true; do
FILE_COUNT=$(ls *.jpg | wc -l)
IMAGE_NUMBER=$(bc -l <<< "x=( $(date +%H) / ( 24 / $FILE_COUNT )); scale=0; x/1+1")
FILE=$(ls -1 *.jpg | sed "${IMAGE_NUMBER}q;d")
if [[ $FILE != $OLD_FILE ]]; then
echo "Setting new background to $FILE"
xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitorscreen/workspace0/last-image -n -t string -s $DIR/$FILE
OLD_FILE=$FILE
fi
sleep 60
done