64 lines
2.9 KiB
Bash
Executable File
64 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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# Chromium kiosk window pointed at pantry-vision's frontend (pantry-web). Installed
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# to /usr/local/bin/pantry-kiosk. Called both at session start and by
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# kitchen-display-agent when a "Show scan/inventory/recipes" MQTT command arrives.
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#
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# Kill-and-relaunch, not focus-and-navigate — same reasoning as hosts/thin-client's
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# digest-browser: Chromium's --kiosk window has no address bar to drive remotely, and
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# the page underneath (pantry-vision/frontend/) is cheap to reload. Camera capture is
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# momentary (hold item up, tap Capture) so losing an in-progress scan to a "Show
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# inventory" command is an acceptable, rare edge case, not a design flaw to solve here.
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#
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# Kills ANY chromium instance before launching, not just this script's own profile —
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# unlike hosts/thin-client's digest-browser/admin-browser (separate Sway workspaces,
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# can coexist), this device has only ONE workspace, so identity-kiosk's window (a
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# different profile) has to actually be replaced, not left running behind this one.
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set -eu
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PROFILE_DIR="${HOME:-/home/$(id -un)}/.config/kitchen-display-chromium"
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BASE_URL="${PANTRY_WEB_URL:-}"
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[ -n "$BASE_URL" ] || { echo "pantry-kiosk: PANTRY_WEB_URL is unset" >&2; exit 1; }
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[ -n "${PANTRY_VISION_URL:-}" ] || { echo "pantry-kiosk: PANTRY_VISION_URL is unset" >&2; exit 1; }
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[ -n "${PANTRY_VISION_TOKEN:-}" ] || { echo "pantry-kiosk: PANTRY_VISION_TOKEN is unset" >&2; exit 1; }
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# api=/token= are read by frontend/app.js — see that file's top comment for why
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# config travels this way instead of being baked into the served static files.
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FRAGMENT="${1:-}"
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URL="${BASE_URL%/}/index.html?api=$(printf '%s' "$PANTRY_VISION_URL" | sed 's/\//%2F/g; s/:/%3A/g')&token=${PANTRY_VISION_TOKEN}"
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[ -n "$FRAGMENT" ] && URL="${URL}#${FRAGMENT}"
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if command -v chromium >/dev/null 2>&1; then
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CHROMIUM=chromium
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elif command -v chromium-browser >/dev/null 2>&1; then
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CHROMIUM=chromium-browser
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else
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echo "pantry-kiosk: no chromium/chromium-browser binary found" >&2
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exit 1
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fi
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mkdir -p "$PROFILE_DIR"
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pkill -u "$(id -u)" -f "$CHROMIUM --user-data-dir=" 2>/dev/null || true
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i=0
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while pgrep -u "$(id -u)" -f "$CHROMIUM --user-data-dir=" >/dev/null 2>&1 && [ "$i" -lt 20 ]; do
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sleep 0.25
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i=$((i + 1))
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done
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# --use-fake-ui-for-media-stream auto-accepts the getUserMedia camera prompt instead
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# of leaving it sitting unanswered on a screen nobody is there to click "Allow" on —
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# VERIFY: the simplest documented way to do this: the alternative,
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# VideoCaptureAllowedUrls enterprise policy, needs a policies.json this image doesn't
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# currently ship, so start with the flag and only add that if it proves insufficient.
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exec "$CHROMIUM" \
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--user-data-dir="$PROFILE_DIR" \
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--ozone-platform=wayland \
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--kiosk --app="$URL" \
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--use-fake-ui-for-media-stream \
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--start-fullscreen \
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--noerrdialogs --disable-infobars --disable-session-crashed-bubble \
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--overscroll-history-navigation=0 \
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--touch-events=enabled \
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--check-for-update-interval=31536000
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