raspberry-pi-kiosk.sh

#!/bin/bash

# Install updates
sudo apt update -y
sudo apt -qq upgrade -y
sudo apt -qq autoremove -y > /dev/null

# Install Chromium
sudo apt install -y chromium-browser unclutter

# Disable overscan if necessary
printf "Do you see a black border around the screen [y/N]:"
read black_border
if [[ $black_border == "y" ]]; then
  # Create a backup file before modifying
  sudo cp /boot/config.txt /boot/config.txt.bkp
  sudo sed -i 's/#disable_overscan=1/disable_overscan=1/' /boot/config.txt
fi

AUTOSTART_PATH=$HOME/.config/lxsession/LXDE-pi
mkdir -p $AUTOSTART_PATH

cat > $AUTOSTART_PATH/kiosk.sh <<EOF
#!/bin/bash

# Turn off screensaver and disable energysaver
xset -dpms
xset s noblank
xset s off

while true;
do
  # Remove the mouse cursor after 10 seconds of idleness
  unclutter -idle 10 -grab &

  # Ensure that if we have a power cut or bad shutdown that the chromium preferences are reset to a "good" state so we don't get the restore previous session dialog
  sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' $HOME/.config/chromium/Default/Preferences
  sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' $HOME/.config/chromium/Default/Preferences

  # Kill all Chromium processes
  pkill -o chromium

  chromium-browser --autoplay-policy=no-user-gesture-required --disable-extensions --no-default-browser-check --start-fullscreen \
  https://morningsave.com/stores/preston-shepard-place/displays/0002 &

  sleep 60
done
EOF

chmod +x $AUTOSTART_PATH/kiosk.sh

if [[ ! -f $AUTOSTART_PATH/autostart ]]; then
  # We are clear to clone the current autostart
  cp /etc/xdg/lxsession/LXDE-pi/autostart $AUTOSTART_PATH/autostart
  echo "@$AUTOSTART_PATH/kiosk.sh" >> $AUTOSTART_PATH/autostart
else
  if grep -Fxq "@$AUTOSTART_PATH/kiosk.sh" $AUTOSTART_PATH/autostart; then
    echo "[SKIP] kiosk mode already setup"
  else
    echo "@$AUTOSTART_PATH/kiosk.sh" >> $AUTOSTART_PATH/autostart
  fi
fi

sudo reboot