1 files changed, 37 insertions, 51 deletions
diff --git a/.config/lf/scope b/.config/lf/scope
index 45f9f33..180c294 100755
--- a/.config/lf/scope
+++ b/.config/lf/scope
@@ -1,58 +1,44 @@
-#!/bin/bash
+#!/bin/sh
 
-set -C -f -u
-#IFS=$'\n'
-IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}"
-
-# ANSI color codes are supported.
-# STDIN is disabled, so interactive scripts won't work properly
-
-# This script is considered a configuration file and must be updated manually.
-
-# Meanings of exit codes:
-# code | meaning    | action of ranger
-# -----+------------+-------------------------------------------
-# 0    | success    | Display stdout as preview
-# 1    | no preview | Display no preview at all
-# 2    | plain text | Display the plain content of the file
-
-# Script arguments
-FILE_PATH="${1}"         # Full path of the highlighted file
-HEIGHT="${2}"
+# File preview handler for lf.
 
-#FILE_EXTENSION="${FILE_PATH##*.}"
-#FILE_EXTENSION_LOWER=$(echo ${FILE_EXTENSION} | tr '[:upper:]' '[:lower:]')
-
-# Settings
-HIGHLIGHT_SIZE_MAX=262143  # 256KiB
-HIGHLIGHT_TABWIDTH=8
-HIGHLIGHT_STYLE='pablo'
+set -C -f
+IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}"
 
+image() {
+	if [ -f "$1" ] && [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ] && command -V ueberzug >/dev/null 2>&1; then
+		printf '{"action": "add", "identifier": "PREVIEW", "x": "%s", "y": "%s", "width": "%s", "height": "%s", "scaler": "contain", "path": "%s"}\n' "$4" "$5" "$(($2-1))" "$(($3-1))" "$1" > "$FIFO_UEBERZUG"
+	else
+		mediainfo "$6"
+	fi
+}
 
-handle_mime() {
-    local mimetype="${1}"
-    case "${mimetype}" in
-	text/html) w3m -dump "${FILE_PATH}" ;;
-	text/troff) man ./ "${FILE_PATH}" | col -b ;;
-	text/* | */xml)
-            if [ "$( stat --printf='%s' -- "${FILE_PATH}" )" -gt "${HIGHLIGHT_SIZE_MAX}" ]; then
-                exit 2
-            fi
-            if [ "$( tput colors )" -ge 256 ]; then
-                local highlight_format='xterm256'
-            else
-                local highlight_format='ansi'
-            fi
-            highlight --replace-tabs="${HIGHLIGHT_TABWIDTH}" --out-format="${highlight_format}" \
-                --style="${HIGHLIGHT_STYLE}" --force -- "${FILE_PATH}" ;;
-	application/zip) atool --list -- "${FILE_PATH}" ;;
-        image/*) chafa --fill=block --symbols=block -c 256 -s 80x"${HEIGHT}" "${FILE_PATH}" || exit 1;;
-        video/* | audio/*|application/octet-stream) mediainfo "${FILE_PATH}" || exit 1;;
-        */pdf) pdftotext -l 10 -nopgbrk -q -- "${FILE_PATH}" - ;;
-        *opendocument*) odt2txt "${FILE_PATH}" ;;
-    esac
+ifub() {
+	[ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ] && command -V ueberzug >/dev/null 2>&1
 }
 
-MIMETYPE="$( file --dereference --brief --mime-type -- "${FILE_PATH}" )"
-handle_mime "${MIMETYPE}"
+# Note that the cache file name is a function of file information, meaning if
+# an image appears in multiple places across the machine, it will not have to
+# be regenerated once seen.
+
+case "$(file --dereference --brief --mime-type -- "$1")" in
+	image/*) image "$1" "$2" "$3" "$4" "$5" "$1" ;;
+	text/html) lynx -width="$4" -display_charset=utf-8 -dump "$1" ;;
+	text/troff) man ./ "$1" | col -b ;;
+	text/* | */xml | application/json) bat --terminal-width "$(($4-2))" -f "$1" ;;
+	application/zip) atool --list -- "$1" ;;
+	audio/* | application/octet-stream) mediainfo "$1" || exit 1 ;;
+	video/* )
+		CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
+		[ ! -f "$CACHE" ] && ffmpegthumbnailer -i "$1" -o "$CACHE" -s 0
+		image "$CACHE" "$2" "$3" "$4" "$5" "$1"
+		;;
+	*/pdf)
+		CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
+		[ ! -f "$CACHE.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
+		image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1"
+		;;
+	*opendocument*) odt2txt "$1" ;;
+	application/pgp-encrypted) gpg -d -- "$1" ;;
+esac
 exit 1