run-transparency-test.sh

1#!/usr/bin/env bash

2# Visual cert for Lantern window transparency (task lantern-translucency).

3#

4# ./run-transparency-test.sh

5#

6# Opens the static semi-transparent CSS page (examples/transparency-test) in a

7# transparent-capable Lantern window. If the Lantern side works, your desktop

8# shows through the tinted page background and fully through the dashed cutout,

9# while the blue panel stays solid. Zero Slate dependency — isolates the

10# GtkWindow RGBA + alpha-0 webview change.

11#

12# Wraps the invocation in an ephemeral `guix shell` (the GTK4 + WebKitGTK + Mesa

13# graphics stack from gl-manifest.scm). If the window never maps, re-run with

14# LANTERN_SOFTWARE_RENDER=1 (the Mesa GL loader-path gotcha).

15set -euo pipefail

17HERE="$(cd "$(dirname "$0")" && pwd)"

18PAGE="${1:-$HERE/examples/transparency-test}"

19LANTERN_BIN="$HERE/build/native/bin/lantern"

21[ -x "$LANTERN_BIN" ] || { echo "missing $LANTERN_BIN — run: sigil build lantern-cli --config native" >&2; exit 1; }

22[ -f "$PAGE/index.html" ] || { echo "no index.html at $PAGE" >&2; exit 1; }

24echo "==> page: $PAGE"

25echo "==> lantern: $LANTERN_BIN"

26exec guix shell -m "$HERE/gl-manifest.scm" -- bash -c '

27 export LD_LIBRARY_PATH="$GUIX_ENVIRONMENT/lib"

28 export LANTERN_LIB_DIR="$GUIX_ENVIRONMENT/lib"

29 exec "$0" run "$1" --title "Transparency test" --transparent

30' "$LANTERN_BIN" "$PAGE"