# Description: Terminal based file previewer
#
# Note: This plugin needs a "NNN_FIFO" to work. See man.
-# For a more extended version of this script with additional optional dependencies, see preview-tui-ext.
#
# Dependencies:
# - Supports 4 independent methods to preview with:
# - unzip
# - tar
# - man
+# - optional: bsdtar or atool for additional archive preview
# - optional: bat for code syntax highlighting
-# - optional: ueberzug, kitty terminal, viu or catimg for images.
+# - optional: ueberzug, kitty terminal, viu or catimg for images
+# - optional: convert(ImageMagick) for playing gif preview
+# - 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: glow or lowdown for markdown
+# - optional: w3m or lynx or elinks for html
+# - optional: set/export ICONLOOKUP as 1 to enable file icons in front of directory previews with .iconlookup
+# Icons and colors are configureable in .iconlookup
# - optional: scope.sh file viewer from ranger.
# 1. drop scope.sh executable in $PATH
# 2. set/export $USE_SCOPE as 1
#TERMINAL="$TERMINAL" # same goes for the terminal
USE_SCOPE="${USE_SCOPE:-0}"
USE_PISTOL="${USE_PISTOL:-0}"
+ICONLOOKUP="${ICONLOOKUP:-0}"
PAGER="${PAGER:-less -P?n -R}"
TMPDIR="${TMPDIR:-/tmp}"
BAT_STYLE="${BAT_STYLE:-numbers}"
+# Consider setting NNN_PREVIEWDIR to $XDG_CACHE_HOME/nnn/previews if you want to keep previews on disk between reboots
+NNN_PREVIEWDIR="${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews}"
+NNN_PREVIEWWIDTH="${NNN_PREVIEWWIDTH:-1920}"
+NNN_PREVIEWHEIGHT="${NNN_PREVIEWHEIGHT:-1080}"
NNN_PARENT="${NNN_FIFO#*.}"
FIFOPID="$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT"
PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NNN_PARENT"
-e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
-e "BAT_STYLE=$BAT_STYLE" -e "PAGERPID=$PAGERPID" -e "FIFOPID=$FIFOPID" \
-e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
- -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$QLPATH" -d"$DSPLIT" "$0" "$1" ;;
+ -e "ICONLOOKUP=$ICONLOOKUP" -e "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
+ -e "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" -e "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
+ -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$2" -d"$DSPLIT" "$0" "$1" ;;
kitty) # Setting the layout for the new window. It will be restored after the script ends.
kitty @ goto-layout splits
# Trying to use kitty's integrated window management as the split window. All
# environmental variables that will be used in the new window must be explicitly passed.
kitty @ launch --no-response --title "nnn preview" --keep-focus \
- --cwd "$PWD" --env "PATH=$PATH" --env "NNN_FIFO=$NNN_FIFO" --env "FIFOPID=$FIFOPID" \
+ --cwd "$PWD" --env "PATH=$PATH" --env "NNN_FIFO=$NNN_FIFO" \
--env "PREVIEW_MODE=1" --env "PAGER=$PAGER" --env "TMPDIR=$TMPDIR" \
--env "USE_SCOPE=$USE_SCOPE" --env "SPLIT=$SPLIT" --env "TERMINAL=$TERMINAL"\
- --env "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=${BAT_STYLE:-numbers}" \
+ --env "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=$BAT_STYLE" --env "FIFOPID=$FIFOPID" \
--env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
+ --env "ICONLOOKUP=$ICONLOOKUP" --env "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
+ --env "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" --env "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
--env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" ;;
*) if [ -n "$2" ]; then
QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" &
handle_mime() {
case "$2" in
- image/*) image_preview "$cols" "$lines" "$1" ;;
+ image/jpg) image_preview "$cols" "$lines" "$1" ;;
+ image/gif) generate_preview "$cols" "$lines" "$1" "gif" ;;
+ image/*) generate_preview "$cols" "$lines" "$1" "image" ;;
+ video/*) generate_preview "$cols" "$lines" "$1" "video" ;;
+ audio/*) generate_preview "$cols" "$lines" "$1" "audio" ;;
+ application/font*|application/*opentype) generate_preview "$cols" "$lines" "$1" "font" ;;
+ */*office*|*/*document*) generate_preview "$cols" "$lines" "$1" "office" ;;
application/zip) fifo_pager unzip -l "$1" ;;
text/troff)
if exists man; then
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 "$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 ;;
*) if [ "$3" = "bin" ]; then
fifo_pager print_bin_info "$1"
else
esac
}
-preview_file () {
+preview_file() {
clear
# Trying to use pistol if it's available.
if [ "$USE_PISTOL" -ne 0 ] && exists pistol; then
# Otherwise, falling back to the defaults.
if [ -d "$1" ]; then
cd "$1" || return
- if exists tree; then
+ if [ "$ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then
+ [ "$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
exa -G --group-directories-first --colour=always
fi
} 2>/dev/null
+generate_preview() {
+ if [ -n "$QLPATH" ] && stat "$3"; then
+ f="$(wslpath -w "$3")" && "$QLPATH" "$f" &
+ elif [ ! -f "$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
+ if [ ! -d "$NNN_PREVIEWDIR/$3" ]; then
+ mkdir -p "$NNN_PREVIEWDIR/$3"
+ convert -coalesce -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$3" "$NNN_PREVIEWDIR/$3/${3##*/}.jpg"
+ fi
+ while true; do
+ for frame in $(find "$NNN_PREVIEWDIR/$3"/*.jpg | sort -V); do
+ image_preview "$1" "$2" "$frame"
+ sleep 0.1
+ done
+ done &
+ printf "%s" "$!" > "$IMGPID"
+ return
+ else
+ image_preview "$1" "$2" "$3"
+ return
+ fi ;;
+ image) convert "$3" -flatten -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$NNN_PREVIEWDIR/$3.jpg" ;;
+ 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" ;;
+ video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" || rm "$NNN_PREVIEWDIR/$3.jpg" ;;
+ esac
+ fi >/dev/null
+ if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then
+ image_preview "$1" "$2" "$NNN_PREVIEWDIR/$3.jpg"
+ else
+ fifo_pager print_bin_info "$3"
+ fi
+} 2>/dev/null
+
image_preview() {
+ clear
if [ "$TERMINAL" = "kitty" ]; then
# Kitty terminal users can use the native image preview method
kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
- elif [ -n "$QLPATH" ] && stat "$3"; then
- f="$(wslpath -w "$3")" && "$QLPATH" "$f" && return
elif exists ueberzug; then
ueberzug_layer "$1" "$2" "$3" && return
elif exists catimg; then
+++ /dev/null
-#!/usr/bin/env sh
-
-# Description: Terminal based file previewer
-#
-# Note: This plugin needs a "NNN_FIFO" to work. See man.
-#
-# Dependencies:
-# - Supports 4 independent methods to preview with:
-# - tmux (>=3.0), or
-# - kitty with allow_remote_control and listen_on set in kitty.conf, or
-# - QuickLook on WSL (https://github.com/QL-Win/QuickLook)
-# - $TERMINAL set to a terminal (it's xterm by default).
-# - less or $PAGER
-# - tree or exa or 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, viu or catimg for images
-# - optional: convert(ImageMagick) for playing gif preview
-# - 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: glow or lowdown for markdown
-# - optional: w3m or lynx or elinks for html
-# - optional: set/export ICONLOOKUP as 1 to enable file icons in front of directory previews with .iconlookup
-# Icons and colors are configureable in .iconlookup
-# - optional: scope.sh file viewer from ranger.
-# To use:
-# 1. drop scope.sh executable in $PATH
-# 2. set/export $USE_SCOPE as 1
-# - optional: pistol file viewer (https://github.com/doronbehar/pistol).
-# To use:
-# 1. install pistol
-# 2. set/export $USE_PISTOL as 1
-#
-# 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 in `nnn`, launch the `preview-tui-ext` plugin.
-#
-# 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 ($TERMINAL).
-#
-# Tmux and kitty users can configure $SPLIT to either "h" or "v" to set a
-# 'h'orizontal split or a 'v'ertical split (as in, the line that splits the
-# windows will be horizontal or vertical).
-#
-# Kitty users need `allow_remote_control` set to `yes`, and `listen_on` set
-# to e.g. "$TMPDIR/kitty". To customize the window split, `enabled_layouts`
-# has to be set to `all` or `splits` (the former is the default value).
-# This terminal is also able to show images without extra dependencies.
-#
-# Shell: POSIX compliant
-# Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal
-
-#SPLIT="$SPLIT" # you can set a permanent split here
-#TERMINAL="$TERMINAL" # same goes for the terminal
-USE_SCOPE="${USE_SCOPE:-0}"
-USE_PISTOL="${USE_PISTOL:-0}"
-ICONLOOKUP="${ICONLOOKUP:-0}"
-PAGER="${PAGER:-less -P?n -R}"
-TMPDIR="${TMPDIR:-/tmp}"
-BAT_STYLE="${BAT_STYLE:-numbers}"
-# Consider setting NNN_PREVIEWDIR to $XDG_CACHE_HOME/nnn/previews if you want to keep previews on disk between reboots
-NNN_PREVIEWDIR="${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews}"
-NNN_PREVIEWWIDTH="${NNN_PREVIEWWIDTH:-1920}"
-NNN_PREVIEWHEIGHT="${NNN_PREVIEWHEIGHT:-1080}"
-NNN_PARENT="${NNN_FIFO#*.}"
-FIFOPID="$TMPDIR/nnn-preview-tui-fifopid.$NNN_PARENT"
-PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NNN_PARENT"
-IMGPID="$TMPDIR/nnn-preview-tui-imgpid.$NNN_PARENT"
-CURSEL="$TMPDIR/nnn-preview-tui-selection.$NNN_PARENT"
-FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT"
-
-start_preview() {
- [ "$PAGER" = "most" ] && PAGER="less -R"
-
- if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then
- TERMINAL=tmux
- elif [ -n "$KITTY_LISTEN_ON" ]; then
- TERMINAL=kitty
- else
- TERMINAL="${TERMINAL:-xterm}"
- fi
-
- if [ -z "$SPLIT" ] && [ $(($(tput lines) * 2)) -gt "$(tput cols)" ]; then
- SPLIT='h'
- elif [ "$SPLIT" != 'h' ]; then
- SPLIT='v'
- fi
-
- case "$TERMINAL" in
- tmux) # tmux splits are inverted
- if [ "$SPLIT" = "v" ]; then DSPLIT="h"; else DSPLIT="v"; fi
- tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "PAGER=$PAGER" \
- -e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
- -e "BAT_STYLE=$BAT_STYLE" -e "PAGERPID=$PAGERPID" -e "FIFOPID=$FIFOPID" \
- -e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
- -e "ICONLOOKUP=$ICONLOOKUP" -e "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
- -e "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" -e "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
- -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$2" -d"$DSPLIT" "$0" "$1" ;;
- kitty) # Setting the layout for the new window. It will be restored after the script ends.
- kitty @ goto-layout splits
- # Trying to use kitty's integrated window management as the split window.
- # All environmental variables that will be used in the new window must
- # be explicitly passed.
- kitty @ launch --no-response --title "nnn preview" --keep-focus \
- --cwd "$PWD" --env "PATH=$PATH" --env "NNN_FIFO=$NNN_FIFO" \
- --env "PREVIEW_MODE=1" --env "PAGER=$PAGER" --env "TMPDIR=$TMPDIR" \
- --env "USE_SCOPE=$USE_SCOPE" --env "SPLIT=$SPLIT" --env "TERMINAL=$TERMINAL"\
- --env "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=$BAT_STYLE" --env "FIFOPID=$FIFOPID" \
- --env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
- --env "ICONLOOKUP=$ICONLOOKUP" --env "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
- --env "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" --env "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
- --env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" ;;
- *) if [ -n "$2" ]; then
- QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" &
- else
- PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
- FIFOPID="$FIFOPID" FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" &
- fi ;;
- esac
-} >/dev/null 2>&1
-
-toggle_preview() {
- if exists QuickLook.exe; then
- QLPATH="QuickLook.exe"
- elif exists Bridge.exe; then
- QLPATH="Bridge.exe"
- fi
- if pkill -P "$(cat "$FIFOPID")"; then
- if [ -n "$QLPATH" ] && stat "$1"; then
- f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
- fi
- else
- start_preview "$1" "$QLPATH"
- fi
-} >/dev/null 2>&1
-
-exists() {
- type "$1" >/dev/null
-}
-
-fifo_pager() {
- cmd="$1"
- shift
-
- # We use a FIFO to access $PAGER PID in jobs control
- tmpfifopath="$TMPDIR/nnn-preview-tui-fifo.$$"
- mkfifo "$tmpfifopath" || return
-
- $PAGER < "$tmpfifopath" &
- printf "%s" "$!" > "$PAGERPID"
-
- (
- exec > "$tmpfifopath"
- if [ "$cmd" = "pager" ]; then
- if exists bat; then
- bat --terminal-width="$(tput cols)" --decorations=always --color=always \
- --paging=never --style="$BAT_STYLE" "$@" &
- else
- $PAGER "$@" &
- fi
- else
- "$cmd" "$@" &
- fi
- )
-
- rm "$tmpfifopath"
-} 2>/dev/null
-
-# 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/jpg) image_preview "$cols" "$lines" "$1" ;;
- image/gif) generate_preview "$cols" "$lines" "$1" "gif" ;;
- 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) generate_preview "$cols" "$lines" "$1" "font" ;;
- */*office*|*/*document*) 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 "$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 ;;
- *) 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 [ "$USE_PISTOL" -ne 0 ] && exists pistol; then
- fifo_pager pistol "$1"
- return
- fi
-
- # Trying to use scope.sh if it's available.
- if [ "$USE_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 exists 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 [ "$ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then
- [ "$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
- exa -G --group-directories-first --colour=always
- else
- fifo_pager ls -F --group-directories-first --color=always
- fi
- elif [ "${encoding#*)}" = "binary" ]; then
- handle_mime "$1" "$mimetype" "$ext" "bin"
- else
- handle_mime "$1" "$mimetype" "$ext"
- fi
-} 2>/dev/null
-
-generate_preview() {
- if [ -n "$QLPATH" ] && stat "$3"; then
- f="$(wslpath -w "$3")" && "$QLPATH" "$f" &
- 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
- if [ ! -d "$NNN_PREVIEWDIR/$3" ]; then
- mkdir -p "$NNN_PREVIEWDIR/$3"
- convert -coalesce -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$3" "$NNN_PREVIEWDIR/$3/${3##*/}.jpg"
- fi
- while true; do
- for frame in $(find "$NNN_PREVIEWDIR/$3"/*.jpg | sort -V); do
- image_preview "$1" "$2" "$frame"
- sleep 0.1
- done
- done &
- printf "%s" "$!" > "$IMGPID"
- return
- else
- image_preview "$1" "$2" "$3"
- return
- fi ;;
- image) convert "$3" -flatten -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$NNN_PREVIEWDIR/$3.jpg" ;;
- 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" ;;
- video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" || rm "$NNN_PREVIEWDIR/$3.jpg" ;;
- esac
- fi >/dev/null
- if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then
- image_preview "$1" "$2" "$NNN_PREVIEWDIR/$3.jpg"
- else
- fifo_pager print_bin_info "$3"
- fi
-} 2>/dev/null
-
-image_preview() {
- clear
- if [ "$TERMINAL" = "kitty" ]; then
- # Kitty terminal users can use the native image preview method
- kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
- elif exists ueberzug; then
- ueberzug_layer "$1" "$2" "$3" && return
- elif exists catimg; then
- catimg "$3" &
- elif exists viu; then
- viu -t "$3" &
- else
- fifo_pager print_bin_info "$3" && return
- fi
- printf "%s" "$!" > "$IMGPID"
-} 2>/dev/null
-
-ueberzug_layer() {
- printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%d", "height": "%d", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG"
-}
-
-ueberzug_remove() {
- printf '{"action": "remove", "identifier": "nnn_ueberzug"}\n' > "$FIFO_UEBERZUG"
-}
-
-winch_handler() {
- clear
- kill "$(cat "$IMGPID")" "$(cat "$PAGERPID")"
- if [ -p "$FIFO_UEBERZUG" ]; then
- pkill -P "$$"
- tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
- fi
- cat "$CURSEL" > "$NNN_FIFO"
- preview_file "$(cat "$CURSEL")"
- preview_fifo &
- wait "$!"
-} 2>/dev/null
-
-preview_fifo() {
- printf "%s" "$$" > "$FIFOPID"
- while read -r selection; do
- kill "$(cat "$IMGPID")" "$(cat "$PAGERPID")"
- [ -p "$FIFO_UEBERZUG" ] && ueberzug_remove
- preview_file "$selection"
- printf "%s" "$selection" > "$CURSEL"
- done < "$NNN_FIFO"
-} 2>/dev/null
-
-if [ "$PREVIEW_MODE" ]; then
- if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then
- mkfifo "$FIFO_UEBERZUG"
- tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
- fi
-
- printf "%s" "$PWD/$1" > "$CURSEL"
- preview_file "$PWD/$1"
- preview_fifo &
- trap 'winch_handler' WINCH
- trap 'rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" "$FIFOPID" 2>/dev/null' INT HUP EXIT
- wait "$!" 2>/dev/null
-else
- if [ ! -r "$NNN_FIFO" ]; then
- clear
- printf "No FIFO available! (\$NNN_FIFO='%s')\nPlease read Usage in preview-tui-ext." "$NNN_FIFO"
- cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
- elif [ "$KITTY_WINDOW_ID" ] && [ -z "$KITTY_LISTEN_ON" ]; then
- clear
- printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui-ext."
- cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
- else
- toggle_preview "$1" &
- fi
-fi