#SPLIT="$SPLIT" # you can set a permanent split here
#TERMINAL="$TERMINAL" # same goes for the terminal
-DEBUG_LOG=0 # set to 1 to enable logging for debug purposes
+SPLIT_SIZE="${SPLIT_SIZE:-50}" # split size in percentage for supported previewers
USE_SCOPE="${USE_SCOPE:-0}"
USE_PISTOL="${USE_PISTOL:-0}"
ICONLOOKUP="${ICONLOOKUP:-0}"
FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NNN_PARENT"
POSOFFSET="$TMPDIR/nnn-preview-tui-posoffset"
-if [ "$DEBUG_LOG" -eq 0 ]; then
- DEBUG_LOGFILE="/dev/null"
-else
- DEBUG_LOGFILE="${TMPDIR}/preview-tui-log"
-fi
+exists() { type "$1" >/dev/null 2>&1 ;}
+pkill() { command pkill "$@" >/dev/null 2>&1 ;}
+pidkill() { [ -f "$1" ] && kill "$(cat "$1")" >/dev/null 2>&1 ;}
+prompt() { printf "%b" "$@"; cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg" ;}
start_preview() {
[ "$PAGER" = "most" ] && PAGER="less -R"
TERMINAL="${TERMINAL:-xterm}"
fi
- if [ -z "$SPLIT" ] && [ $(($(tput lines <"$TTY") * 2)) -gt "$(tput cols <"$TTY")" ]; then
+ if [ -z "$SPLIT" ] && [ $(($(tput lines) * 2)) -gt "$(tput cols)" ]; then
SPLIT='h'
elif [ "$SPLIT" != 'h' ]; then
SPLIT='v'
case "$TERMINAL" in
tmux) # tmux splits are inverted
if [ "$SPLIT" = "v" ]; then DSPLIT="h"; else DSPLIT="v"; fi
- tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e TTY="$TTY" \
- -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" -e "FIFOPID=$FIFOPID" -e "POSOFFSET=$POSOFFSET" \
+ tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "CURSEL=$CURSEL" \
+ -e "TMPDIR=$TMPDIR" -e "FIFOPID=$FIFOPID" -e "POSOFFSET=$POSOFFSET" \
-e "BAT_STYLE=$BAT_STYLE" -e "BAT_THEME=$BAT_THEME" -e "PREVIEWPID=$PREVIEWPID" \
-e "PAGER=$PAGER" -e "ICONLOOKUP=$ICONLOOKUP" -e "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" \
-e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
-e "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" -e "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
- -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$2" -d"$DSPLIT" "$0" "$1" ;;
+ -e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$2" -d"$DSPLIT" -p"$SPLIT_SIZE" "$0" "$1" ;;
kitty) # Setting the layout for the new window. It will be restored after the script ends.
kitty @ goto-layout splits
# Trying to use kitty's integrated window management as the split window. All
--env "ICONLOOKUP=$ICONLOOKUP" --env "NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT" \
--env "NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH" --env "NNN_PREVIEWDIR=$NNN_PREVIEWDIR" \
--env "USE_PISTOL=$USE_PISTOL" --env "BAT_STYLE=$BAT_STYLE" \
- --env "BAT_THEME=$BAT_THEME" --env "FIFOPID=$FIFOPID" --env TTY="$TTY" \
+ --env "BAT_THEME=$BAT_THEME" --env "FIFOPID=$FIFOPID" \
--env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" ;;
iterm)
command="$SHELL -c 'cd $PWD; \
PREVIEWPID=\\\"$PREVIEWPID\\\" CURSEL=\\\"$CURSEL\\\" TMPDIR=\\\"$TMPDIR\\\" \
ICONLOOKUP=\\\"$ICONLOOKUP\\\" NNN_PREVIEWHEIGHT=\\\"$NNN_PREVIEWHEIGHT\\\" \
NNN_PREVIEWWIDTH=\\\"$NNN_PREVIEWWIDTH\\\" NNN_PREVIEWDIR=\\\"$NNN_PREVIEWDIR\\\" \
- USE_PISTOL=\\\"$USE_PISTOL\\\" BAT_STYLE=\\\"$BAT_STYLE\\\" TTY=\\\"$TTY\\\" \
+ USE_PISTOL=\\\"$USE_PISTOL\\\" BAT_STYLE=\\\"$BAT_STYLE\\\" \
BAT_THEME=\\\"$BAT_THEME\\\" FIFOPID=\\\"$FIFOPID\\\" \\\"$0\\\" \\\"$1\\\"'"
if [ "$SPLIT" = "h" ]; then split="horizontally"; else split="vertically"; fi
osascript <<-EOF
;;
winterm)
if [ "$SPLIT" = "h" ]; then split="H"; else split="V"; fi
- cmd.exe /c wt -w 0 sp -$split bash -c "cd $PWD \; PATH='$PATH' NNN_FIFO=$NNN_FIFO \
- PREVIEW_MODE=1 TTY=$TTY CURSEL=$CURSEL TMPDIR=$TMPDIR FIFOPID=$FIFOPID \
- BAT_STYLE=$BAT_STYLE BAT_THEME=$BAT_THEME PREVIEWPID=$PREVIEWPID \
+ cmd.exe /c wt -w 0 sp -$split -s$((SPLIT_SIZE / 100)) bash -c "cd $PWD \; \
+ PATH='$PATH' NNN_FIFO=$NNN_FIFO PREVIEW_MODE=1 CURSEL=$CURSEL TMPDIR=$TMPDIR \
+ FIFOPID=$FIFOPID BAT_STYLE=$BAT_STYLE BAT_THEME=$BAT_THEME PREVIEWPID=$PREVIEWPID \
PAGER='$PAGER' ICONLOOKUP=$ICONLOOKUP NNN_PREVIEWWIDTH=$NNN_PREVIEWWIDTH \
USE_SCOPE=$USE_SCOPE SPLIT=$SPLIT USE_PISTOL=$USE_PISTOL \
NNN_PREVIEWDIR=$NNN_PREVIEWDIR NNN_PREVIEWHEIGHT=$NNN_PREVIEWHEIGHT \
*) if [ -n "$2" ]; then
QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" &
else
- PREVIEWPID="$PREVIEWPID" CURSEL="$CURSEL" PREVIEW_MODE=1 TTY="$TTY" \
+ PREVIEWPID="$PREVIEWPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
FIFOPID="$FIFOPID" FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" &
fi ;;
esac
-} >"$DEBUG_LOGFILE" 2>&1
+}
toggle_preview() {
if exists QuickLook.exe; then
elif exists Bridge.exe; then
QLPATH="Bridge.exe"
fi
- if kill "$(cat "$FIFOPID")"; then
+ if pidkill "$FIFOPID"; then
[ -p "$NNN_PPIPE" ] && printf "0" > "$NNN_PPIPE"
- kill "$(cat "$PREVIEWPID")"
+ pidkill "$PREVIEWPID"
pkill -f "tail --follow $FIFO_UEBERZUG"
if [ -n "$QLPATH" ] && stat "$1"; then
f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
[ -p "$NNN_PPIPE" ] && printf "1" > "$NNN_PPIPE"
start_preview "$1" "$QLPATH"
fi
-} >"$DEBUG_LOGFILE" 2>&1
-
-exists() {
- type "$1" >/dev/null
}
fifo_pager() {
exec > "$tmpfifopath"
if [ "$cmd" = "pager" ]; then
if exists bat; then
- bat --terminal-width="$(tput cols <"$TTY")" --decorations=always --color=always \
+ bat --terminal-width="$cols" --decorations=always --color=always \
--paging=never --style="$BAT_STYLE" --theme="$BAT_THEME" "$@" &
else
$PAGER "$@" &
)
rm "$tmpfifopath"
-} 2>"$DEBUG_LOGFILE"
+}
# Binary file: show file info inside the pager
print_bin_info() {
else
file -b "$1"
fi
-} 2>"$DEBUG_LOGFILE"
+}
handle_mime() {
case "$2" in
mimetype="$(file -bL --mime-type -- "$1")"
ext="${1##*.}"
[ -n "$ext" ] && ext="$(printf "%s" "${ext}" | tr '[:upper:]' '[:lower:]')"
- lines=$(tput lines <"$TTY")
- cols=$(tput cols <"$TTY")
+ lines=$(tput lines)
+ cols=$(tput cols)
# Otherwise, falling back to the defaults.
if [ -d "$1" ]; then
else
handle_mime "$1" "$mimetype" "$ext"
fi
-} 2>"$DEBUG_LOGFILE"
+}
generate_preview() {
if [ -n "$QLPATH" ] && stat "$3"; then
filename="$(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" ;;
+ djvu) ddjvu -format=ppm -page=1 "$3" "$NNN_PREVIEWDIR/$3.jpg" ;;
video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" || rm "$NNN_PREVIEWDIR/$3.jpg" ;;
esac
- fi >"$DEBUG_LOGFILE"
+ fi
if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then
image_preview "$1" "$2" "$NNN_PREVIEWDIR/$3.jpg"
else
fifo_pager print_bin_info "$3"
fi
-} 2>"$DEBUG_LOGFILE"
+} >/dev/null 2>&1
image_preview() {
clear
fifo_pager print_bin_info "$3" && return
fi
printf "%s" "$!" > "$PREVIEWPID"
-} 2>"$DEBUG_LOGFILE"
+}
ueberzug_layer() {
- read -r x y < "$POSOFFSET"
+ [ -f "$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"
}
winch_handler() {
clear
- kill "$(cat "$PREVIEWPID")"
+ 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")"
-} 2>"$DEBUG_LOGFILE"
+}
preview_fifo() {
while read -r selection; do
if [ -n "$selection" ]; then
- kill "$(cat "$PREVIEWPID")"
+ pidkill "$PREVIEWPID"
[ -p "$FIFO_UEBERZUG" ] && ueberzug_remove
[ "$selection" = "close" ] && break
preview_file "$selection"
done < "$NNN_FIFO"
sleep 0.1 # make sure potential preview by winch_handler is killed
pkill -P "$$"
-} 2>"$DEBUG_LOGFILE"
+}
if [ "$PREVIEW_MODE" ]; then
if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then
else
if [ ! -r "$NNN_FIFO" ]; then
clear
- printf "No FIFO available! (\$NNN_FIFO='%s')\nPlease read Usage in preview-tui." "$NNN_FIFO"
- cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
+ prompt "No FIFO available! (\$NNN_FIFO='$NNN_FIFO')\nPlease read Usage in preview-tui."
elif [ "$KITTY_WINDOW_ID" ] && [ -z "$TMUX" ] && [ -z "$KITTY_LISTEN_ON" ]; then
clear
- printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui."
- cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
+ prompt "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui."
else
- TTY="$(tty)"
- TTY="$TTY" toggle_preview "$1" &
+ toggle_preview "$1" &
fi
fi