From e4988f0264aabca7e23dbcad651f053722f7ab09 Mon Sep 17 00:00:00 2001 From: Luuk van Baal Date: Sun, 30 May 2021 23:48:10 +0200 Subject: [PATCH] Preview-tui-ext to preview-tui --- plugins/.iconlookup | 2 +- plugins/README.md | 1 - plugins/preview-tui | 116 ++++++++++- plugins/preview-tui-ext | 420 ---------------------------------------- 4 files changed, 107 insertions(+), 432 deletions(-) delete mode 100755 plugins/preview-tui-ext diff --git a/plugins/.iconlookup b/plugins/.iconlookup index 9ff817b0..a97ab49c 100755 --- a/plugins/.iconlookup +++ b/plugins/.iconlookup @@ -7,7 +7,7 @@ # Usage # 1. Set colors and/or icons to your liking # 2. Pipe any directory listing to iconlookup and it will output prepended icons -# 3. preview-tui-ext uses the script to prepend icon to directory listings +# 3. preview-tui uses the script to prepend icon to directory listings # 4. Aditionally you can consider adding it to your PATH and/or FZF_DEFAULT_COMMAND to # make it work with various fzf plugins (make sure you also add --ansi to your FZF_DEFAULT_OPTS) diff --git a/plugins/README.md b/plugins/README.md index cb9340df..9e494ddc 100644 --- a/plugins/README.md +++ b/plugins/README.md @@ -56,7 +56,6 @@ Plugins extend the capabilities of `nnn`. They are _executable_ scripts (or bina | [picker](picker) | Pick files and list one per line (to pipe) | sh | nnn | | [preview-tabbed](preview-tabbed) | Preview files with Tabbed/xembed | bash | _see in-file docs_ | | [preview-tui](preview-tui) | Preview with Tmux/kitty/[QuickLook](https://github.com/QL-Win/QuickLook)/xterm/`$TERMINAL` | sh | _see in-file docs_ | -| [preview-tui-ext](preview-tui-ext) | Meant to be an exhaustive version of [preview-tui](preview-tui) | sh | _see in-file docs_ | | [pskill](pskill) | Fuzzy list by name and kill process or zombie | sh | fzf, ps, sudo/doas | | [renamer](renamer) | Batch rename selection or files in dir [✓] | sh | [qmv](https://www.nongnu.org/renameutils/)/[vidir](https://joeyh.name/code/moreutils/) | | [ringtone](ringtone) | Create a variable bitrate mp3 ringtone from file | sh | date, ffmpeg | diff --git a/plugins/preview-tui b/plugins/preview-tui index 6c7abc53..11fcb404 100755 --- a/plugins/preview-tui +++ b/plugins/preview-tui @@ -3,7 +3,6 @@ # 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: @@ -18,8 +17,20 @@ # - 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 $USE_SCOPE as 1 @@ -63,9 +74,14 @@ #TERMINAL="$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" @@ -97,17 +113,21 @@ start_preview() { -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" & @@ -177,7 +197,13 @@ print_bin_info() { 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 @@ -191,7 +217,33 @@ handle_mime() { 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 "$1" else @@ -200,7 +252,7 @@ handle_ext() { esac } -preview_file () { +preview_file() { clear # Trying to use pistol if it's available. if [ "$USE_PISTOL" -ne 0 ] && exists pistol; then @@ -231,7 +283,11 @@ preview_file () { # 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 @@ -245,12 +301,52 @@ preview_file () { 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 diff --git a/plugins/preview-tui-ext b/plugins/preview-tui-ext deleted file mode 100755 index b705e112..00000000 --- a/plugins/preview-tui-ext +++ /dev/null @@ -1,420 +0,0 @@ -#!/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