fuck my preview

3 files changed, 539 insertions, 418 deletions

diff --git a/.config/env b/.config/env
index 84bd5cf..8e811fa 100644
--- a/.config/env
+++ b/.config/env
@@ -108,6 +108,7 @@ export NNN_PAGER='less'
 export NNN_BATTHEME='gruvbox-dark'
 export NNN_BATSTYLE='plain'
 export NNN_PREVIEWIMGPROG='icat'
+export NNN_PREVIEWVIDEO='tct'
 export NNN_ICONLOOKUP=0
 export NNN_PLUG='t:joe_fzfcd;p:-joe_preview;P:-preview-tui;s:-!du -sh;f:-fzopen'
 export RUSTFLAGS='-L /usr/local/lib'
diff --git a/.config/nnn/plugins/joe_preview b/.config/nnn/plugins/joe_preview
deleted file mode 100755
index 6620cd3..0000000
--- a/.config/nnn/plugins/joe_preview
+++ /dev/null
@@ -1,418 +0,0 @@
-#!/usr/bin/env perl
-
-use strict;
-use warnings;
-use Cwd qw(cwd);
-use POSIX qw(mkfifo);
-# use POSIX qw(:signal_h);
-use File::Spec;
-use File::Basename;
-use Term::ANSIColor;
-
-
-my $parent = '';
-if ($ENV{'NNN_FIFO'}) {
-	($parent = $ENV{'NNN_FIFO'}) =~ s/^[^.]*\.//;
-}
-my $tmpdir = '/tmp';
-my $cwd = cwd();
-
-$ENV{'PWD'} = $cwd;
-$ENV{'FIFOPID'} = "$tmpdir/nnn-preview-joe-fifopid.$parent";
-$ENV{'FIFOPATH'} = "$tmpdir/nnn-preview-joe-fifo.$parent";
-$ENV{'PREVIEWPID'} = "$tmpdir/nnn-preview-joe-previewpid.$parent";
-$ENV{'CURSEL'} = "$tmpdir/nnn-preview-joe-selection.$parent";
-$ENV{'POSOFFSET'} = "$tmpdir/nnn-preview-joe-posoffset";
-$ENV{'NNN_PAGER'} ||= 'less';
-$ENV{'NNN_BATSTYLE'} ||= 'numbers';
-$ENV{'NNN_BATTHEME'} ||= 'ansi';
-
-sub image_preview
-{
-	print "IMAGE PREVIEW\n";
-	return;
-}
-
-sub generate_preview
-{
-	print "GENERAL PREVIEW\n";
-	return;
-}
-
-sub fifo_pager
-{
-	my ($cmd, @args) = @_;
-	my $reader_pid;
-	my $writer_pid;
-	my $pager;
-
-	$pager = $ENV{'NNN_PAGER'} // 'less';
-
-	mkfifo($ENV{'FIFOPATH'}, 0700) or return;
-
-	$reader_pid = fork();
-	die $! unless defined $reader_pid;
-	if ($reader_pid == 0) {
-		open(STDIN, '<', $ENV{'FIFOPATH'}) or die $!;
-		exec($pager) or die $!;
-	}
-
-	open(my $pid_fh, '>', $ENV{'PREVIEWPID'}) or die $!;
-	print $pid_fh $reader_pid;
-	close($pid_fh);
-
-	$writer_pid = fork();
-	die $! unless defined $writer_pid;
-	if ($writer_pid == 0) {
-		open(STDOUT, '>', $ENV{'FIFOPATH'}) or die $!;
-		if ($cmd eq 'pager') {
-			my $cols = `tput cols`;
-			chomp $cols;
-			exec("bat",
-				"--terminal-width=$cols",
-				"--decorations=always",
-				"--color=always",
-				"--paging=never",
-				"--style=$ENV{'NNN_BATSTYLE'}",
-				"--theme=$ENV{'NNN_BATTHEME'}",
-				@args
-			) or die $!;
-		}
-		elsif ($cmd eq 'print_bin_info') {
-			print "-------- ",
-			color('bold red'),
-			"Binary file",
-			color('reset'),
-			" --------\n";
-			exec('mediainfo', @args);
-		}
-		else {
-			exec($cmd, @args) or die $!;
-		}
-	}
-	waitpid($writer_pid, 0);
-	unlink $ENV{'FIFOPATH'} or warn $!;
-	return;
-}
-
-sub handle_ext
-{
-	my ($file, $ext, $type) = @_;
-
-	if ($ext eq 'epub') {
-		generate_preview($file, 'epub');
-	}
-	elsif ($ext eq 'pdf') {
-		generate_preview($file, 'pdf');
-	}
-	elsif (
-		$ext eq 'gz' ||
-		$ext eq 'bz2'
-	) {
-		fifo_pager('tar', '-tvf', $file);
-	}
-	elsif ($ext eq 'md') {
-		fifo_pager('glow', '-s', 'dark', $file);
-	}
-	elsif (
-		$ext eq 'htm' ||
-		$ext eq 'html' ||
-		$ext eq 'xhtml'
-	) {
-		fifo_pager('w3m', $file);
-	}
-	elsif (
-		$ext eq '7z' ||
-		$ext eq 'a' ||
-		$ext eq 'ace' ||
-		$ext eq 'alz' ||
-		$ext eq 'arc' ||
-		$ext eq 'arj' ||
-		$ext eq 'bz' ||
-		$ext eq 'cab' ||
-		$ext eq 'cpio' ||
-		$ext eq 'deb' ||
-		$ext eq 'jar' ||
-		$ext eq 'lha' ||
-		$ext eq 'lz' ||
-		$ext eq 'lzh' ||
-		$ext eq 'lzma' ||
-		$ext eq 'lzo' ||
-		$ext eq 'rar' ||
-		$ext eq 'rpm' ||
-		$ext eq 'rz' ||
-		$ext eq 't7z' ||
-		$ext eq 'tar' ||
-		$ext eq 'tbz' ||
-		$ext eq 'tbz2' ||
-		$ext eq 'tgz' ||
-		$ext eq 'tlz' ||
-		$ext eq 'txz' ||
-		$ext eq 'tZ' ||
-		$ext eq 'tzo' ||
-		$ext eq 'war' ||
-		$ext eq 'xpi' ||
-		$ext eq 'xz' ||
-		$ext eq 'xz' ||
-		$ext eq 'zst' ||
-		$ext eq 'Z'
-	) {
-		fifo_pager('atool', '-l', $file);
-	}
-	elsif ($ext eq 'json') {
-		fifo_pager('jq', '--color-output', '.', $file);
-	}
-	elsif ($type eq 'bin') {
-		fifo_pager('print_bin_info', $file);
-	}
-	else {
-		fifo_pager('pager', $file);
-	}
-	return;
-}
-
-sub handle_mime
-{
-	my ($file, $mimetype, $ext, $type) = @_;
-
-	if ($mimetype eq 'image/jpeg') {
-		image_preview($file);
-	}
-	elsif ($mimetype eq 'image/gif') {
-		generate_preview($file, 'gif');
-	}
-	elsif ($mimetype eq 'image/vnd.djvu') {
-		generate_preview($file, 'djvu');
-	}
-	elsif ($mimetype =~ /^image\//) {
-		generate_preview($file, 'image');
-	}
-	elsif ($mimetype =~ /^video\//) {
-		generate_preview($file, 'video');
-	}
-	elsif ($mimetype =~ /^audio\//) {
-		generate_preview($file, 'audio');
-	}
-	elsif (
-		$mimetype =~ /^application\/font/ ||
-		$mimetype =~ /^application\/.*opentype/ ||
-		$mimetype =~ /^font\//
-	) {
-		generate_preview($file, 'font');
-	}
-	elsif (
-		$mimetype =~ m{/.+office.+} ||
-		$mimetype =~ m{/.+document.+} ||
-		$mimetype =~ m{/.+msword} ||
-		$mimetype =~ m{/.+ms-excel}
-	) {
-		generate_preview($file, 'office');
-	}
-	elsif ($mimetype eq 'application/zip') {
-		fifo_pager('unzip', '-l', $file);
-	}
-	elsif ($mimetype eq 'text/troff') {
-		fifo_pager('man', '-Pcat', '-l', $file);
-	}
-	else {
-		handle_ext($file, $ext, $type);
-	}
-	return;
-}
-
-sub preview_file
-{
-	my ($file) = @_;
-	my ($ext) = $file =~ /\.([^.]*)$/;
-	my $encoding;
-	my $mimetype;
-	my $lines;
-	my $cols;
-
-	system('clear');
-	$encoding = `file -bL --mime-encoding -- $file`;
-	$mimetype = `file -bL --mime-type -- $file`;
-	$ext = lc($ext) if length($ext) > 0;
-	$lines = `tput lines`;
-	$cols = `tput cols`;
-
-	if (-d $file) {
-		chdir $file or return;
-		fifo_pager(
-			'eza',
-			'-T',
-			'--group-directories-first',
-			'--colour=always',
-			'-L',
-			'3'
-		);
-		chdir '..';
-	}
-	elsif ($encoding =~ /\)/) {
-		my ($suffix) = $encoding =~ /\)(.*)/;
-		if (defined $suffix && $suffix eq 'binary') {
-			handle_mime($file, $mimetype, $ext, 'bin');
-		}
-		else {
-			handle_mime($file, $mimetype, $ext);
-		}
-	}
-	return;
-}
-
-sub preview_fifo
-{
-	while (1) {
-		open(my $fh, '<', $ENV{'NNN_FIFO'}) or die $!;
-        while (my $selection = <$fh>) {
-            chomp $selection;
-            if ($selection) {
-                pidkill($ENV{'PREVIEWPID'});
-                last if $selection eq 'close';
-                preview_file($selection);
-                open(my $cursel_fh, '>', $ENV{'CURSEL'}) or die $!;
-                print $cursel_fh $selection;
-                close($cursel_fh);
-            }
-        }
-        close $fh;
-	}
-	return;
-}
-
-sub pidkill {
-	my ($pidfile) = @_;
-	my $pid;
-	my $ret;
-
-	if (-e $pidfile) {
-		$pid = `cat $pidfile 2>/dev/null` or return 1;
-		$ret = system("kill $pid >/dev/null 2>&1");
-		system("wait $pid 2>/dev/null");
-		return $ret;
-	}
-	return 1;
-}
-
-sub winch_handler
-{
-	my $filepath;
-
-	system('clear');
-	pidkill($ENV{'PREVIEWPID'});
-	open(my $fh, '<', $ENV{'CURSEL'}) or die $!;
-	$filepath = <$fh>;
-	chomp $filepath if $filepath;
-	close($fh);
-	preview_file($filepath) if $filepath;
-	return;
-}
-
-sub start_preview
-{
-	my ($file) = @_;
-	my $pid;
-
-	$ENV{'NNN_TERMINAL'} = $ENV{'NNN_TERMINAL'} // 'xterm';
-	$ENV{'PREVIEW_MODE'} = 1;
-	$pid = fork();
-	die $! unless defined $pid;
-	if ($pid == 0) {
-		exec($ENV{'NNN_TERMINAL'}, '-e', $0, $file) or die $!;
-	}
-	return;
-}
-
-sub toggle_preview
-{
-	my ($file) = @_;
-	my $nnn_ppipe;
-
-	$ENV{'PWD'} = cwd();
-	$ENV{'PATH'} = $ENV{'PATH'};
-	$ENV{'NNN_FIFO'} = $ENV{'NNN_FIFO'};
-	$nnn_ppipe = $ENV{'NNN_PPIPE'} // '';
-	if (pidkill($ENV{'FIFOPID'})) {
-		if ($nnn_ppipe && -p $nnn_ppipe) {
-			open(my $fh, '>', $nnn_ppipe) or warn $!;
-			print $fh "0";
-			close($fh);
-		}
-		pidkill($ENV{'PREVIEWPID'});
-	}
-	else {
-		if ($nnn_ppipe && -p $nnn_ppipe) {
-			open(my $fh, '>', $nnn_ppipe) or warn $!;
-			print $fh "1";
-			close($fh);
-		}
-		start_preview($file);
-	}
-	return;
-}
-
-sub joe_preview
-{
-	my $file;
-	my $pid;
-	my $cwd;
-
-	$cwd = cwd();
-
-	$SIG{PIPE} = 'IGNORE';
-
-	$file = $ARGV[0];
-	if (($ENV{'PREVIEW_MODE'} || 0) == 1) {
-		preview_file($cwd . '/' . $file);
-
-		$pid = fork();
-		die $! unless defined $pid;
-		if ($pid == 0) {
-			preview_fifo();
-			return;
-		}
-
-		open(my $pidfh, '>', $ENV{'FIFOPID'}) or die $!;
-		print $pidfh "$pid\n";
-		close($pidfh);
-
-		open(my $curselfh, '>', $ENV{'CURSEL'}) or die $!;
-		print $curselfh "$cwd/$file\n";
-		close($curselfh);
-
-		$SIG{WINCH} = sub {
-			winch_handler();
-		};
-
-		for my $signal (qw(INT HUP EXIT)) {
-			$SIG{$signal} = sub {
-				unlink(
-					$ENV{'PREVIEWPID'},
-					$ENV{'CURSEL'},
-					$ENV{'FIFOPID'},
-					$ENV{'POSOFFSET'}
-				);
-				exit 0;
-			};
-		}
-
-		while (kill 0, $pid) {
-			waitpid($pid, 0);
-		}
-
-		return;
-	}
-	else {
-		# $pid = fork();
-		# die $! unless defined $pid;
-		# if ($pid == 0) {
-			toggle_preview($file);
-		# 	return;
-		# }
-	}
-	return;
-}
-
-joe_preview();
-
-__END__
diff --git a/.config/nnn/plugins/preview-tui b/.config/nnn/plugins/preview-tui
new file mode 100755
index 0000000..4662721
--- /dev/null
+++ b/.config/nnn/plugins/preview-tui
@@ -0,0 +1,538 @@
+#!/usr/bin/env bash
+
+# Description: Terminal based file previewer
+#
+# Note: This plugin needs a "NNN_FIFO" to work. See man.
+#
+# Dependencies:
+#   - Supports 6 independent methods to preview with:
+#       - tmux (>=3.0), or
+#       - kitty with allow_remote_control and listen_on set in kitty.conf, or
+#       - wezterm (https://wezfurlong.org/wezterm), or
+#       - QuickLook on WSL (https://github.com/QL-Win/QuickLook), or
+#       - Windows Terminal (https://github.com/Microsoft/Terminal | https://aka.ms/terminal) with WSL, or
+#       - $NNN_TERMINAL set to a terminal (it's xterm by default).
+#   - less or $NNN_PAGER
+#   - tree or exa/eza or (GNU) ls
+#   - mediainfo or file
+#   - mktemp
+#   - unzip
+#   - tar
+#   - man
+#   - optional: bsdtar or atool for additional archive preview
+#   - optional: bat for code syntax highlighting
+#   - optional: ueberzug, kitty terminal, wezterm terminal, img2sixel, viu, catimg, timg or chafa for images
+#   - optional: convert(ImageMagick) for playing gif preview (mandatory for kitty image previews)
+#   - optional: mpv for gif and video
+#       Also requires a terminal supporting the sixel (https://www.arewesixelyet.com/)
+#       or kitty (https://sw.kovidgoyal.net/kitty/graphics-protocol) video_output backends.
+#       Requires tmux compiled with `./configure --enable-sixel` if used.
+#   - optional: ffmpegthumbnailer for video thumbnails (https://github.com/dirkvdb/ffmpegthumbnailer)
+#   - optional: ffmpeg for audio thumbnails
+#   - optional: libreoffce for opendocument/officedocument preview
+#   - optional: pdftoppm(poppler) for pdf thumbnails
+#   - optional: gnome-epub-thumbnailer for epub thumbnails (https://gitlab.gnome.org/GNOME/gnome-epub-thumbnailer)
+#   - optional: fontpreview for font preview (https://github.com/sdushantha/fontpreview)
+#   - optional: djvulibre for djvu
+#   - optional: glow or lowdown for markdown
+#   - optional: w3m or lynx or elinks for html
+#   - optional: set/export NNN_ICONLOOKUP as 1 to enable file icons in front of directory previews with .iconlookup
+#       Icons and colors are configurable in .iconlookup
+#   - optional: scope.sh file viewer from ranger.
+#       1. drop scope.sh executable in $PATH
+#       2. set/export $NNN_SCOPE as 1
+#   - optional: pistol file viewer (https://github.com/doronbehar/pistol).
+#       1. install pistol
+#       2. set/export $NNN_PISTOL as 1
+#   - optional: librsvg for rsvg-convert
+#
+# Usage:
+#   You need to set a NNN_FIFO path and a key for the plugin with NNN_PLUG,
+#   then start `nnn`:
+#
+#     $ nnn -a
+#
+#   or
+#
+#     $ NNN_FIFO=/tmp/nnn.fifo nnn
+#
+#   Then launch the `preview-tui` plugin in `nnn`.
+#
+#   If you provide the same NNN_FIFO to all nnn instances, there will be a
+#   single common preview window. If you provide different FIFO path (e.g.
+#   with -a), they will be independent.
+#
+#   The previews will be shown in a tmux split. If that isn't possible, it
+#   will try to use a kitty terminal split. And as a final fallback, a
+#   different terminal window will be used ($NNN_TERMINAL).
+#
+#   Kitty users need something similar to the following in their kitty.conf:
+#   - `allow_remote_control yes`
+#   - `listen_on unix:$TMPDIR/kitty`
+#   - `enabled_layouts splits` (optional)
+#   With ImageMagick installed, this terminal can use the icat kitten to display images.
+#   Refer to kitty documentation for further details.
+#
+#   Users with both tmux and kitty can leverage image previews inside tmux with kitty's icat kitten
+#   - setup kitty as stated above
+#   - tmux >= v3.3a required
+#   - add the following to your tmux.conf:
+#     - `set -g allow-passthrough on`
+#
+#   Wezterm should work out of the box. If `NNN_PREVIEWIMGPROG` is not specified it will use
+#   built in iTerm2 image protocol.
+#
+#   Note that GNU ls is used for its `--group-directories-first` flag.
+#   On MacOS this may be installed with `brew install coreutils`, or the flag can be removed.
+#   iTerm2 users are recommended to use viu to view images without getting pixelated.
+#
+#   Windows Terminal users can set "Profile termination behavior" under "Profile > Advanced" settings
+#   to automatically close pane on quit when exit code is 0.
+#
+#   When specifying a different terminal, additional arguments are supported. In particular, you can
+#   append a specific title to the terminal and set it to "nofocus" in your WM config.
+#   E.g for alacritty and i3, you can set $NNN_TERMINAL to 'alacritty --title preview-tui' and add
+#   'no_focus [title="preview-tui"]' to your i3 config file.
+#
+# Shell: Bash (for environment manipulation through arrays)
+# Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal, @WanderLanz, @flipflop133
+
+# Configurable environment variables:
+NNN_SPLIT=${NNN_SPLIT:-}                                   # permanent split direction
+NNN_TERMINAL=${NNN_TERMINAL:-}                             # external terminal to be used
+NNN_SPLITSIZE=${NNN_SPLITSIZE:-50}                         # previewer split size percentage
+TMPDIR=${TMPDIR:-/tmp}                                     # location of temporary files
+ENVVARS=(
+  "NNN_SCOPE=${NNN_SCOPE:-0}"                              # use scope
+  "NNN_PISTOL=${NNN_PISTOL:-0}"                            # use pistol
+  "NNN_ICONLOOKUP=${NNN_ICONLOOKUP:-0}"                    # use .iconlookup
+  "NNN_PAGER=${NNN_PAGER:-less -P?n -R -C}"                # pager options
+  "NNN_BATTHEME=${NNN_BATTHEME:-ansi}"                     # bat theme
+  "NNN_BATSTYLE=${NNN_BATSTYLE:-numbers}"                  # bat style
+  "NNN_PREVIEWWIDTH=${NNN_PREVIEWWIDTH:-1920}"             # width of generated preview images
+  "NNN_PREVIEWHEIGHT=${NNN_PREVIEWHEIGHT:-1080}"           # height of generated preview images
+  "NNN_PREVIEWDIR=${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews}" # location of generated preview images
+  "NNN_PREVIEWIMGPROG=${NNN_PREVIEWIMGPROG:-}"             # command used to preview images
+  "NNN_PREVIEWVIDEO=${NNN_PREVIEWVIDEO:-}"                 # mpv backend used to preview video
+)
+# Non-configurable environment variables
+NNN_PARENT=${NNN_FIFO#*.}
+[ "$NNN_PARENT" -eq "$NNN_PARENT" ] 2>/dev/null || NNN_PARENT="" # Make empty if non-numeric
+ENVVARS+=(
+  "PWD=$PWD"
+  "PATH=$PATH"
+  "NNN_FIFO=$NNN_FIFO"
+  "FIFOPID=$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT"
+  "FIFOPATH=$TMPDIR/nnn-preview-tui-fifo.$NNN_PARENT"
+  "PREVIEWPID=$TMPDIR/nnn-preview-tui-previewpid.$NNN_PARENT"
+  "CURSEL=$TMPDIR/nnn-preview-tui-selection.$NNN_PARENT"
+  "FIFO_UEBERZUG=$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT"
+  "POSOFFSET=$TMPDIR/nnn-preview-tui-posoffset"
+)
+
+trap '' PIPE
+exists() { type "$1" >/dev/null 2>&1 ;}
+pkill() { command pkill "$@" >/dev/null 2>&1 ;}
+prompt() { clear; printf "%b" "$@"; cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg" ;}
+pidkill() {
+    if [ -f "$1" ]; then
+        PID="$(cat "$1" 2>/dev/null)" || return 1
+        kill "$PID" >/dev/null 2>&1
+        RET=$?
+        wait "$PID" 2>/dev/null
+        return $RET
+    fi
+    return 1
+}
+
+start_preview() {
+    if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then
+        NNN_TERMINAL=tmux
+        exists mpv && tmux display -p '#{client_termfeatures}' | grep -q 'sixel' && ENVVARS+=("NNN_PREVIEWVIDEO=sixel")
+    elif [ -n "$KITTY_LISTEN_ON" ]; then
+        NNN_TERMINAL=kitty
+        exists mpv && ENVVARS+=("NNN_PREVIEWVIDEO=kitty")
+    elif [ -n "$WEZTERM_PANE" ]; then
+        NNN_TERMINAL=wezterm
+        exists mpv && ENVVARS+=("NNN_PREVIEWVIDEO=kitty")
+    elif [ -z "$NNN_TERMINAL" ] && [ "$TERM_PROGRAM" = "iTerm.app" ]; then
+        NNN_TERMINAL=iterm
+        exists mpv && ENVVARS+=("NNN_PREVIEWVIDEO=sixel")
+    elif [ -n "$WT_SESSION" ]; then
+        NNN_TERMINAL=winterm
+    else
+        NNN_TERMINAL="${NNN_TERMINAL:-xterm}"
+    fi
+
+    if [ -z "$NNN_SPLIT" ] && [ $(($(tput lines) * 2)) -gt "$(tput cols)" ]; then
+        NNN_SPLIT='h'
+    elif [ "$NNN_SPLIT" != 'h' ]; then
+        NNN_SPLIT='v'
+    fi
+
+    ENVVARS+=("NNN_TERMINAL=$NNN_TERMINAL" "NNN_SPLIT=$NNN_SPLIT" "QLPATH=$2" "PREVIEW_MODE=1")
+    case "$NNN_TERMINAL" in
+        iterm|winterm) # has to run in separate shell command: escape
+            ENVVARS=("${ENVVARS[@]/#/\\\"}")
+            ENVVARS=("${ENVVARS[@]/%/\\\"}")
+            command="$SHELL -c 'env ${ENVVARS[*]} \\\"$0\\\" \\\"$1\\\"'" ;;
+    esac
+
+    case "$NNN_TERMINAL" in
+        tmux) # tmux splits are inverted
+            ENVVARS=("${ENVVARS[@]/#/-e}")
+            if [ "$NNN_SPLIT" = "v" ]; then split="h"; else split="v"; fi
+            tmux split-window -l"$NNN_SPLITSIZE"% "${ENVVARS[@]}" -d"$split" -p"$NNN_SPLITSIZE" "$0" "$1" ;;
+        kitty) # Setting the layout for the new window. It will be restored after the script ends.
+            ENVVARS=("${ENVVARS[@]/#/--env=}")
+            kitty @ goto-layout splits
+            # Trying to use kitty's integrated window management as the split window.
+            kitty @ launch --no-response --title "preview-tui" --keep-focus \
+                --cwd "$PWD" "${ENVVARS[@]}" --location "${NNN_SPLIT}split" "$0" "$1" ;;
+        wezterm)
+            export "${ENVVARS[@]}"
+            if [ "$NNN_SPLIT" = "v" ]; then split="--horizontal"; else split="--bottom"; fi
+            wezterm cli split-pane --cwd "$PWD" $split --percent "$NNN_SPLITSIZE" "$0" "$1" >/dev/null
+            wezterm cli activate-pane-direction Prev ;;
+        iterm)
+            if [ "$NNN_SPLIT" = "h" ]; then split="horizontally"; else split="vertically"; fi
+            osascript <<-EOF
+            tell application "iTerm"
+                tell current session of current window
+                    split $split with default profile command "$command"
+                end tell
+            end tell
+EOF
+            ;;
+        winterm)
+            if [ "$NNN_SPLIT" = "h" ]; then split="H"; else split="V"; fi
+            wt -w 0 sp -$split -s"0.$NNN_SPLITSIZE" "$command" \; -w 0 mf previous 2>/dev/null ;;
+        *)  if [ -n "$2" ]; then
+                env "${ENVVARS[@]}" QUICKLOOK=1 "$0" "$1" &
+            else
+                # shellcheck disable=SC2086 # (allow arguments)
+                env "${ENVVARS[@]}" $NNN_TERMINAL -e "$0" "$1" &
+            fi ;;
+    esac
+}
+
+toggle_preview() {
+    export "${ENVVARS[@]}"
+    if exists QuickLook.exe; then
+        QLPATH="QuickLook.exe"
+    elif exists Bridge.exe; then
+        QLPATH="Bridge.exe"
+    fi
+    if pidkill "$FIFOPID"; then
+        [ -p "$NNN_PPIPE" ] && printf "0" > "$NNN_PPIPE"
+        pidkill "$PREVIEWPID"
+        pkill -f "tail --follow $FIFO_UEBERZUG"
+        if [ -n "$QLPATH" ] && stat "$1"; then
+            f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
+        fi
+    else
+        [ -p "$NNN_PPIPE" ] && printf "1" > "$NNN_PPIPE"
+        start_preview "$1" "$QLPATH"
+    fi
+}
+
+fifo_pager() {
+    cmd="$1"
+    shift
+
+    # We use a FIFO to access $NNN_PAGER PID in jobs control
+    mkfifo "$FIFOPATH" || return
+
+    $NNN_PAGER < "$FIFOPATH" &
+    printf "%s" "$!" > "$PREVIEWPID"
+
+    (
+        exec > "$FIFOPATH"
+        if [ "$cmd" = "pager" ]; then
+            if exists bat; then
+                bat --terminal-width="$cols" --decorations=always --color=always \
+                    --paging=never --style="$NNN_BATSTYLE" --theme="$NNN_BATTHEME" "$@" &
+            else
+                $NNN_PAGER "$@" &
+            fi
+        else
+            "$cmd" "$@" &
+        fi
+    )
+
+    rm -- "$FIFOPATH"
+}
+
+# Binary file: show file info inside the pager
+print_bin_info() {
+    printf -- "-------- \033[1;31mBinary file\033[0m --------\n"
+    if exists mediainfo; then
+        mediainfo "$1"
+    else
+        file -b "$1"
+    fi
+}
+
+handle_mime() {
+    case "$2" in
+        image/jpeg) image_preview "$cols" "$lines" "$1" ;;
+        image/gif) generate_preview "$cols" "$lines" "$1" "gif" ;;
+        image/vnd.djvu) generate_preview "$cols" "$lines" "$1" "djvu" ;;
+        image/*) generate_preview "$cols" "$lines" "$1" "image" ;;
+        video/*) generate_preview "$cols" "$lines" "$1" "video" ;;
+        audio/*) generate_preview "$cols" "$lines" "$1" "audio" ;;
+        application/font*|application/*opentype|font/*) generate_preview "$cols" "$lines" "$1" "font" ;;
+        */*office*|*/*document*|*/*msword|*/*ms-excel) generate_preview "$cols" "$lines" "$1" "office" ;;
+        application/zip) fifo_pager unzip -l "$1" ;;
+        text/troff)
+            if exists man; then
+                fifo_pager man -Pcat -l "$1"
+            else
+                fifo_pager pager "$1"
+            fi ;;
+        *) handle_ext "$1" "$3" "$4" ;;
+    esac
+}
+
+handle_ext() {
+    case "$2" in
+        epub) generate_preview "$cols" "$lines" "$1" "epub" ;;
+        pdf) generate_preview "$cols" "$lines" "$1" "pdf" ;;
+        gz|bz2) fifo_pager tar -tvf "$1" ;;
+        md) if exists glow; then
+                fifo_pager glow -s dark "$1"
+            elif exists lowdown; then
+                fifo_pager lowdown -Tterm --term-width="$cols" --term-column="$cols" "$1"
+            else
+                fifo_pager pager "$1"
+            fi ;;
+        htm|html|xhtml)
+            if exists w3m; then
+                fifo_pager w3m "$1"
+            elif exists lynx; then
+                fifo_pager lynx "$1"
+            elif exists elinks; then
+                fifo_pager elinks "$1"
+            else
+                fifo_pager pager "$1"
+            fi ;;
+        7z|a|ace|alz|arc|arj|bz|cab|cpio|deb|jar|lha|lz|lzh|lzma|lzo\
+        |rar|rpm|rz|t7z|tar|tbz|tbz2|tgz|tlz|txz|tZ|tzo|war|xpi|xz|Z)
+            if exists atool; then
+                fifo_pager atool -l "$1"
+            elif exists bsdtar; then
+                fifo_pager bsdtar -tvf "$1"
+            fi ;;
+        json)
+            if exists jq; then
+                fifo_pager jq --color-output '.' "$1"
+            else
+                fifo_pager pager "$1"
+            fi ;;
+        *) if [ "$3" = "bin" ]; then
+               fifo_pager print_bin_info "$1"
+           else
+               fifo_pager pager "$1"
+           fi ;;
+    esac
+}
+
+preview_file() {
+    clear
+    # Trying to use pistol if it's available.
+    if [ "$NNN_PISTOL" -ne 0 ] && exists pistol; then
+        fifo_pager pistol "$1"
+        return
+    fi
+
+    # Trying to use scope.sh if it's available.
+    if [ "$NNN_SCOPE" -ne 0 ] && exists scope.sh; then
+        fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" "True"
+        return
+    fi
+
+    # Use QuickLook if it's available.
+    if [ -n "$QUICKLOOK" ]; then
+        stat "$1" && f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
+        return
+    fi
+
+    # Detecting the exact type of the file: the encoding, mime type, and extension in lowercase.
+    encoding="$(file -bL --mime-encoding -- "$1")"
+    mimetype="$(file -bL --mime-type -- "$1")"
+    ext="${1##*.}"
+    [ -n "$ext" ] && ext="$(printf "%s" "${ext}" | tr '[:upper:]' '[:lower:]')"
+    lines=$(tput lines)
+    cols=$(tput cols)
+
+    # Otherwise, falling back to the defaults.
+    if [ -d "$1" ]; then
+        cd "$1" || return
+        if [ "$NNN_ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then
+            [ "$NNN_SPLIT" = v ] && BSTR="\n"
+            # shellcheck disable=SC2012
+            ls -F --group-directories-first | head -n "$((lines - 3))" | "$(dirname "$0")"/.iconlookup -l "$cols" -B "$BSTR" -b " "
+        elif exists tree; then
+            fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport
+        elif exists exa; then
+            fifo_pager exa -T --group-directories-first --colour=always -L 3
+        elif exists eza; then # eza is a community fork of exa (exa is unmaintained)
+            fifo_pager eza -T --group-directories-first --colour=always -L 3
+        else
+            fifo_pager ls -F --group-directories-first --color=always
+        fi
+        cd ..
+    elif [ "${encoding#*)}" = "binary" ]; then
+        handle_mime "$1" "$mimetype" "$ext" "bin"
+    else
+        handle_mime "$1" "$mimetype" "$ext"
+    fi
+}
+
+generate_preview() {
+  if [ -n "$QLPATH" ] && stat "$3"; then
+        f="$(wslpath -w "$3")" && "$QLPATH" "$f" &
+  elif [ -n "$NNN_PREVIEWVIDEO" ] && [[ "$4" == +(gif|video) ]]; then
+    [ "$4" = "video" ] && args=(--start=10% --length=4) || args=()
+    video_preview "$1" "$2" "$3" "${args[@]}" && return
+  elif [ ! -f "$NNN_PREVIEWDIR/$3.jpg" ] || [ -n "$(find -L "$3" -newer "$NNN_PREVIEWDIR/$3.jpg")" ]; then
+        mkdir -p "$NNN_PREVIEWDIR/${3%/*}"
+        case $4 in
+            audio) ffmpeg -i "$3" -filter_complex "scale=iw*min(1\,min($NNN_PREVIEWWIDTH/iw\,ih)):-1" "$NNN_PREVIEWDIR/$3.jpg" -y ;;
+            epub) gnome-epub-thumbnailer "$3" "$NNN_PREVIEWDIR/$3.jpg" ;;
+            font) fontpreview -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" ;;
+            gif) if [ -p "$FIFO_UEBERZUG" ] && exists convert; then
+                    frameprefix="$NNN_PREVIEWDIR/$3/${3##*/}"
+                    if [ ! -d "$NNN_PREVIEWDIR/$3" ]; then
+                        mkdir -p "$NNN_PREVIEWDIR/$3"
+                        convert -coalesce -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$3" "$frameprefix.jpg" ||
+                        MAGICK_TMPDIR="/tmp" convert -coalesce -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$3" "$frameprefix.jpg"
+                    fi
+                    frames=$(($(find "$NNN_PREVIEWDIR/$3" | wc -l) - 2))
+                    [ $frames -lt 0 ] && return
+                    while true; do
+                        for i in $(seq 0 $frames); do
+                            image_preview "$1" "$2" "$frameprefix-$i.jpg"
+                            sleep 0.1
+                        done
+                    done &
+                    printf "%s" "$!" > "$PREVIEWPID"
+                    return
+                 elif [ -n "$NNN_PREVIEWVIDEO" ]; then
+                    video_preview "$1" "$2" "$3" && return
+                 else
+                    image_preview "$1" "$2" "$3" && return
+                 fi ;;
+            image) if exists rsvg-convert && [[ "${3##*.}" == "svg" ]]; then
+                       rsvg-convert -a -w "$NNN_PREVIEWWIDTH" -h "$NNN_PREVIEWHEIGHT" -f png -o "$NNN_PREVIEWDIR/$3.png" "$3"
+                   elif exists convert; then
+                       convert "$3" -flatten -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$NNN_PREVIEWDIR/$3.jpg"
+                   else
+                       image_preview "$1" "$2" "$3" && return
+                   fi ;;
+            office) libreoffice --convert-to jpg "$3" --outdir "$NNN_PREVIEWDIR/${3%/*}"
+                    filename="$(printf "%s" "${3##*/}" | cut -d. -f1)"
+                    mv -- "$NNN_PREVIEWDIR/${3%/*}/$filename.jpg" "$NNN_PREVIEWDIR/$3.jpg" ;;
+            pdf) pdftoppm -jpeg -f 1 -singlefile "$3" "$NNN_PREVIEWDIR/$3" ;;
+            djvu) ddjvu -format=ppm -page=1 "$3" "$NNN_PREVIEWDIR/$3.jpg" ;;
+            video) video_preview "$1" "$2" "$3" && return ;;
+        esac
+    fi
+    if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then
+        image_preview "$1" "$2" "$NNN_PREVIEWDIR/$3.jpg"
+    elif [[ "${3##*.}" == "svg" ]] && [ -f "$NNN_PREVIEWDIR/$3.png" ]; then
+        image_preview "$1" "$2" "$NNN_PREVIEWDIR/$3.png"
+    else
+        fifo_pager print_bin_info "$3"
+    fi
+} >/dev/null 2>&1
+
+image_preview() {
+    clear
+    exec >/dev/tty
+    if [ "$NNN_TERMINAL" = "kitty" ] && [[ "$NNN_PREVIEWIMGPROG" == +(|icat) ]]; then
+        kitty +kitten icat --silent --scale-up --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
+    elif [ "$NNN_TERMINAL" = "tmux" ] && [[ -n "$KITTY_LISTEN_ON" ]] && [[ "$NNN_PREVIEWIMGPROG" == +(|icat) ]]; then
+        kitty +kitten icat --silent --scale-up --place "$(($1 - 1))x$(($2 - 1))"@0x0 --transfer-mode=memory --stdin=no "$3" &
+    elif [ "$NNN_TERMINAL" = "wezterm" ] && [[ "$NNN_PREVIEWIMGPROG" == +(|imgcat) ]]; then
+        wezterm imgcat "$3" &
+    elif exists ueberzug && [[ "$NNN_PREVIEWIMGPROG" == +(|ueberzug) ]]; then
+        ueberzug_layer "$1" "$2" "$3" && return
+    elif exists "${NNN_PREVIEWIMGPROG%% *}"; then # can include command flags; only check first word
+        $NNN_PREVIEWIMGPROG -w "$1" "$3" &
+    else
+        fifo_pager print_bin_info "$3" && return
+    fi
+    printf "%s" "$!" > "$PREVIEWPID"
+}
+
+video_preview() {
+    clear
+    exec >/dev/tty
+    if [ -n "$NNN_PREVIEWVIDEO" ]; then
+        mpv --no-config --really-quiet --vo="$NNN_PREVIEWVIDEO" --profile=sw-fast --loop-file --no-audio "$4" "$3" &
+    else
+        ffmpegthumbnailer -m -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" || rm -- "$NNN_PREVIEWDIR/$3.jpg" &
+    fi
+    printf "%s" "$!" > "$PREVIEWPID"
+}
+
+ueberzug_layer() {
+    [ -f "$POSOFFSET" ] && read -r x y < "$POSOFFSET"
+    printf '{"action": "add", "identifier": "nnn_ueberzug", "x": %d, "y": %d, "width": "%d", "height": "%d", "scaler": "fit_contain", "path": "%s"}\n'\
+        "${x:-0}" "${y:-0}" "$1" "$2" "$3" > "$FIFO_UEBERZUG"
+}
+
+ueberzug_remove() {
+    printf '{"action": "remove", "identifier": "nnn_ueberzug"}\n' > "$FIFO_UEBERZUG"
+}
+
+winch_handler() {
+    clear
+    pidkill "$PREVIEWPID"
+    if [ -p "$FIFO_UEBERZUG" ]; then
+        pkill -f "tail --follow $FIFO_UEBERZUG"
+        tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
+    fi
+    preview_file "$(cat "$CURSEL")"
+}
+
+preview_fifo() {
+    while read -r selection; do
+        if [ -n "$selection" ]; then
+            pidkill "$PREVIEWPID"
+            [ -p "$FIFO_UEBERZUG" ] && ueberzug_remove
+            [ "$selection" = "close" ] && break
+            preview_file "$selection"
+            printf "%s" "$selection" > "$CURSEL"
+        fi
+    done < "$NNN_FIFO"
+    sleep 0.1 # make sure potential preview by winch_handler is killed
+    pkill -P "$$"
+}
+
+if [ "$PREVIEW_MODE" -eq 1 ] 2>/dev/null; then
+    if exists ueberzug && [ "$NNN_TERMINAL" != "kitty" ] && [[ "$NNN_PREVIEWIMGPROG" == +(|ueberzug) ]]; then
+        mkfifo "$FIFO_UEBERZUG"
+        tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
+    fi
+
+    preview_file "$PWD/$1"
+    preview_fifo & WAITPID=$!
+    printf "%s" "$!" > "$FIFOPID"
+    printf "%s" "$PWD/$1" > "$CURSEL"
+    trap 'winch_handler' WINCH
+    trap 'rm -- "$PREVIEWPID" "$CURSEL" "$FIFO_UEBERZUG" "$FIFOPID" "$POSOFFSET" 2>/dev/null' INT HUP EXIT
+    while kill -s 0 $WAITPID; do
+      wait $WAITPID 2>/dev/null
+    done
+    exit 0
+else
+    if [ ! -r "$NNN_FIFO" ]; then
+        prompt "No FIFO available! (\$NNN_FIFO='$NNN_FIFO')\nPlease read Usage in '$0'."
+    elif [ "$KITTY_WINDOW_ID" ] && [ -z "$TMUX" ] && [ -z "$KITTY_LISTEN_ON" ]; then
+        prompt "\$KITTY_LISTEN_ON not set!\nPlease read Usage in '$0'."
+    else
+        toggle_preview "$1" &
+    fi
+fi