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Merge pull request #1013 from luukvbaal/preview-tui

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Preview-tui cleanup
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Piña Colada 2021-05-16 08:46:30 +05:30 committed by GitHub
parent 31c34740bc 5fba2ba749
commit a95ed82f60
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 173 additions and 203 deletions
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178
plugins/preview-tui
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@ -59,20 +59,21 @@
# Shell: POSIX compliant # Shell: POSIX compliant
# Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal # Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal
SPLIT="$SPLIT" # you can set a permanent split here #SPLIT="$SPLIT" # you can set a permanent split here
TERMINAL="$TERMINAL" # same goes for the terminal #TERMINAL="$TERMINAL" # same goes for the terminal
USE_SCOPE="${USE_SCOPE:-0}" USE_SCOPE="${USE_SCOPE:-0}"
USE_PISTOL="${USE_PISTOL:-0}" USE_PISTOL="${USE_PISTOL:-0}"
PAGER="${PAGER:-less -P?n -R}" PAGER="${PAGER:-less -P?n -R}"
TMPDIR="${TMPDIR:-/tmp}" TMPDIR="${TMPDIR:-/tmp}"
BAT_STYLE="${BAT_STYLE:-numbers}"
NNN_PARENT="${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"
startpreview() { start_preview() {
NUMPREVIEWTUI="$(($(find "$TMPDIR" -maxdepth 1 -name 'nnn-preview-tui-pagerpid*' 2>/dev/null | wc -l) + 1))"
PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NUMPREVIEWTUI"
IMGPID="$TMPDIR/nnn-preview-tui-gifpid.$NUMPREVIEWTUI"
CURSEL="$TMPDIR/nnn-preview-tui-selection.$NUMPREVIEWTUI"
FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NUMPREVIEWTUI"
[ "$PAGER" = "most" ] && PAGER="less -R" [ "$PAGER" = "most" ] && PAGER="less -R"
if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then
@ -89,55 +90,51 @@ startpreview() {
SPLIT='v' SPLIT='v'
fi fi
if [ "$TERMINAL" = "tmux" ]; then case "$TERMINAL" in
# tmux splits are inverted tmux) # tmux splits are inverted
if [ "$SPLIT" = "v" ]; then SPLIT="h"; else SPLIT="v"; fi 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 "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$QLPATH" -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=$FIFOPID" \
--env "PREVIEW_MODE=1" --env "PAGER=$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 "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
--env "CURSEL=$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" "$1" &
fi ;;
esac
} >/dev/null 2>&1
tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "PAGER=$PAGER" \ toggle_preview() {
-e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
-e "BAT_STYLE=${BAT_STYLE:-numbers}" -e "PAGERPID=$PAGERPID" \
-e "IMGPID=$IMGPID" -e "CURSEL=$CURSEL" -e "TMPDIR=$TMPDIR" \
-e "FIFO_UEBERZUG=$FIFO_UEBERZUG" -e "QLPATH=$QLPATH" -d"$SPLIT" "$0" "$1"
elif [ "$TERMINAL" = "kitty" ]; then
# Setting the layout for the new window. It will be restored after the
# script ends.
kitty @ goto-layout splits >/dev/null
# 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:-numbers}" \
--env "PAGERPID=$PAGERPID" --env "IMGPID=$IMGPID" --env "FIFO_UEBERZUG=$FIFO_UEBERZUG" \
--env "CURSEL=$CURSEL" --location "${SPLIT}split" "$0" "$1" >/dev/null
elif [ -n "$2" ]; then
QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" >/dev/null &
else
PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" 2>/dev/null &
fi
}
togglepreview() {
if exists QuickLook.exe; then if exists QuickLook.exe; then
QLPATH="QuickLook.exe" QLPATH="QuickLook.exe"
elif exists Bridge.exe; then elif exists Bridge.exe; then
QLPATH="Bridge.exe" QLPATH="Bridge.exe"
fi fi
if pkill -fx "cat $NNN_FIFO" >/dev/null; then if pkill -P "$(cat "$FIFOPID")"; then
if [ -n "$QLPATH" ] && stat "$1" >/dev/null 2>&1; then if [ -n "$QLPATH" ] && stat "$1"; then
f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" & f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
fi fi
else else
startpreview "$1" "$QLPATH" start_preview "$1" "$QLPATH"
fi fi
} } >/dev/null 2>&1
exists() { exists() {
type "$1" >/dev/null 2>&1 type "$1" >/dev/null
} }
fifo_pager() { fifo_pager() {
@ -156,7 +153,7 @@ fifo_pager() {
if [ "$cmd" = "pager" ]; then if [ "$cmd" = "pager" ]; then
if exists bat; then if exists bat; then
bat --terminal-width="$(tput cols)" --decorations=always --color=always \ bat --terminal-width="$(tput cols)" --decorations=always --color=always \
--paging=never --style="${BAT_STYLE:-numbers}" "$@" 2>/dev/null & --paging=never --style="$BAT_STYLE" "$@" &
else else
$PAGER "$@" & $PAGER "$@" &
fi fi
@ -166,17 +163,17 @@ fifo_pager() {
) )
rm "$tmpfifopath" rm "$tmpfifopath"
} } 2>/dev/null
# Binary file: show file info inside the pager # Binary file: show file info inside the pager
print_bin_info() { print_bin_info() {
printf -- "-------- \033[1;31mBinary file\033[0m --------\n" printf -- "-------- \033[1;31mBinary file\033[0m --------\n"
if exists mediainfo; then if exists mediainfo; then
mediainfo "$1" 2>/dev/null mediainfo "$1"
else else
file -b "$1" file -b "$1"
fi fi
} } 2>/dev/null
handle_mime() { handle_mime() {
case "$2" in case "$2" in
@ -213,25 +210,21 @@ preview_file () {
# Trying to use scope.sh if it's available. # Trying to use scope.sh if it's available.
if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then
fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" \ fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" "True"
"True" 2>/dev/null
return return
fi fi
# Use QuickLook if it's available. # Use QuickLook if it's available.
if [ -n "$QUICKLOOK" ]; then if [ -n "$QUICKLOOK" ]; then
stat "$1" >/dev/null 2>&1 && f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" & stat "$1" && f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
return return
fi fi
# Detecting the exact type of the file: the encoding, mime type, and # Detecting the exact type of the file: the encoding, mime type, and extension in lowercase.
# extension in lowercase.
encoding="$(file -bL --mime-encoding -- "$1")" encoding="$(file -bL --mime-encoding -- "$1")"
mimetype="$(file -bL --mime-type -- "$1")" mimetype="$(file -bL --mime-type -- "$1")"
ext="${1##*.}" ext="${1##*.}"
if [ -n "$ext" ]; then [ -n "$ext" ] && ext="$(printf "%s" "${ext}" | tr '[:upper:]' '[:lower:]')"
ext="$(printf "%s" "${ext}" | tr '[:upper:]' '[:lower:]')"
fi
lines=$(tput lines) lines=$(tput lines)
cols=$(tput cols) cols=$(tput cols)
@ -241,40 +234,37 @@ preview_file () {
if exists tree; then if exists tree; then
fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport
elif exists exa; then elif exists exa; then
exa -G --colour=always 2>/dev/null exa -G --group-directories-first --colour=always
else else
fifo_pager ls -F --directories-first --color=always fifo_pager ls -F --group-directories-first --color=always
fi fi
elif [ "${encoding#*)}" = "binary" ]; then elif [ "${encoding#*)}" = "binary" ]; then
handle_mime "$1" "$mimetype" "$ext" "bin" handle_mime "$1" "$mimetype" "$ext" "bin"
else else
handle_mime "$1" "$mimetype" "$ext" handle_mime "$1" "$mimetype" "$ext"
fi fi
} } 2>/dev/null
image_preview() { image_preview() {
if [ "$TERMINAL" = "kitty" ]; then if [ "$TERMINAL" = "kitty" ]; then
# Kitty terminal users can use the native image preview method although one might consider # Kitty terminal users can use the native image preview method
# installing ueberzug and moving the ueberzug clause to the top since it performs alot better.
kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" & kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
printf "%s" "$!" > "$IMGPID"
elif [ -n "$QLPATH" ] && stat "$3" >/dev/null 2>&1; then elif [ -n "$QLPATH" ] && stat "$3" >/dev/null 2>&1; then
f="$(wslpath -w "$3" 2>&1)" && "$QLPATH" "$f" & f="$(wslpath -w "$3")" && "$QLPATH" "$f" && return
elif exists ueberzug; then elif exists ueberzug; then
ueberzug_layer "$1" "$2" "$3" ueberzug_layer "$1" "$2" "$3" && return
elif exists catimg; then elif exists catimg; then
catimg "$3" & catimg "$3" &
printf "%s" "$!" > "$IMGPID"
elif exists viu; then elif exists viu; then
viu -t "$3" & viu -t "$3" &
printf "%s" "$!" > "$IMGPID"
else else
fifo_pager print_bin_info "$3" fifo_pager print_bin_info "$3" && return
fi fi
} printf "%s" "$!" > "$IMGPID"
} 2>/dev/null
ueberzug_layer() { ueberzug_layer() {
printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%s", "height": "%s", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG" 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() { ueberzug_remove() {
@ -283,46 +273,40 @@ ueberzug_remove() {
ueberzug_refresh() { ueberzug_refresh() {
clear clear
kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1 kill "$(cat "$IMGPID")"
pkill -P "$$" >/dev/null 2>&1 kill "$(cat "$PAGERPID")"
pkill -f -n preview-tui-ext >/dev/null 2>&1 pkill -P "$$"
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json & tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
printf "\n" > "$NNN_FIFO" cat "$CURSEL" > "$NNN_FIFO"
preview_fifo 2>/dev/null & preview_fifo &
preview_file "$(cat "$CURSEL")" preview_file "$(cat "$CURSEL")"
wait wait "$!"
} } 2>/dev/null
preview_fifo() { preview_fifo() {
# use cat instead of 'exec <' to avoid issues with dash shell printf "%s" "$$" > "$FIFOPID"
# shellcheck disable=SC2002
cat "$NNN_FIFO" |\
while read -r selection; do while read -r selection; do
kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1 kill "$(cat "$IMGPID")"
kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1 kill "$(cat "$PAGERPID")"
[ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove [ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
preview_file "$selection" preview_file "$selection"
printf "%s" "$selection" > "$CURSEL" printf "%s" "$selection" > "$CURSEL"
done done < "$NNN_FIFO"
kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1 } 2>/dev/null
kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1
[ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" >/dev/null 2>&1
pkill -P "$$" >/dev/null 2>&1
}
if [ "$PREVIEW_MODE" ]; then if [ "$PREVIEW_MODE" ]; then
if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then
mkfifo "$FIFO_UEBERZUG" mkfifo "$FIFO_UEBERZUG"
trap 'ueberzug_refresh; rm "$FIFO_UEBERZUG"' WINCH trap 'ueberzug_refresh' WINCH
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json & tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
fi fi
trap 'rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" 2>/dev/null' INT HUP EXIT
printf "%s" "$PWD/$1" > "$CURSEL"
preview_file "$PWD/$1" preview_file "$PWD/$1"
printf "%s" "$PWD/$1" > "$CURSEL" & preview_fifo &
preview_fifo 2>/dev/null & wait "$!"
wait rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" "$FIFOPID" 2>/dev/null
pkill -P "$$"
else else
if [ ! -r "$NNN_FIFO" ]; then if [ ! -r "$NNN_FIFO" ]; then
clear clear
@ -333,6 +317,6 @@ else
printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui." printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui."
cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg" cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
else else
togglepreview "$1" & toggle_preview "$1" &
fi fi
fi fi

198
plugins/preview-tui-ext
View file

@ -72,25 +72,26 @@
# Shell: POSIX compliant # Shell: POSIX compliant
# Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal # Authors: Todd Yamakawa, Léo Villeveygoux, @Recidiviste, Mario Ortiz Manero, Luuk van Baal
SPLIT="$SPLIT" # you can set a permanent split here #SPLIT="$SPLIT" # you can set a permanent split here
TERMINAL="$TERMINAL" # same goes for the terminal #TERMINAL="$TERMINAL" # same goes for the terminal
USE_SCOPE="${USE_SCOPE:-0}" USE_SCOPE="${USE_SCOPE:-0}"
USE_PISTOL="${USE_PISTOL:-0}" USE_PISTOL="${USE_PISTOL:-0}"
ICONLOOKUP="${ICONLOOKUP:-0}" ICONLOOKUP="${ICONLOOKUP:-0}"
PAGER="${PAGER:-less -P?n -R}" PAGER="${PAGER:-less -P?n -R}"
TMPDIR="${TMPDIR:-/tmp}" TMPDIR="${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 # Consider setting NNN_PREVIEWDIR to $XDG_CACHE_HOME/nnn/previews if you want to keep previews on disk between reboots
NNN_PREVIEWDIR="${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews}" NNN_PREVIEWDIR="${NNN_PREVIEWDIR:-$TMPDIR/nnn/previews}"
NNN_PREVIEWWIDTH="${NNN_PREVIEWWIDTH:-1920}" NNN_PREVIEWWIDTH="${NNN_PREVIEWWIDTH:-1920}"
NNN_PREVIEWHEIGHT="${NNN_PREVIEWHEIGHT:-1080}" 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"
startpreview() { start_preview() {
NUMPREVIEWTUI="$(($(find "$TMPDIR" -maxdepth 1 -name 'nnn-preview-tui-pagerpid*' 2>/dev/null | wc -l) + 1))"
PAGERPID="$TMPDIR/nnn-preview-tui-pagerpid.$NUMPREVIEWTUI"
IMGPID="$TMPDIR/nnn-preview-tui-gifpid.$NUMPREVIEWTUI"
CURSEL="$TMPDIR/nnn-preview-tui-selection.$NUMPREVIEWTUI"
FIFO_UEBERZUG="$TMPDIR/nnn-preview-tui-ueberzug-fifo.$NUMPREVIEWTUI"
[ "$PAGER" = "most" ] && PAGER="less -R" [ "$PAGER" = "most" ] && PAGER="less -R"
if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then if [ -e "${TMUX%%,*}" ] && tmux -V | grep -q '[ -][3456789]\.'; then
@ -107,59 +108,56 @@ startpreview() {
SPLIT='v' SPLIT='v'
fi fi
if [ "$TERMINAL" = "tmux" ]; then case "$TERMINAL" in
# tmux splits are inverted tmux) # tmux splits are inverted
if [ "$SPLIT" = "v" ]; then SPLIT="h"; else SPLIT="v"; fi 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" "$1" &
fi ;;
esac
} >/dev/null 2>&1
tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -e "PAGER=$PAGER" \ toggle_preview() {
-e "USE_SCOPE=$USE_SCOPE" -e "SPLIT=$SPLIT" -e "USE_PISTOL=$USE_PISTOL" \
-e "BAT_STYLE=${BAT_STYLE:-numbers}" -e "PAGERPID=$PAGERPID" \
-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=$2" -d"$SPLIT" "$0" "$1"
elif [ "$TERMINAL" = "kitty" ]; then
# Setting the layout for the new window. It will be restored after the
# script ends.
kitty @ goto-layout splits >/dev/null
# 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:-numbers}" \
--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" >/dev/null
elif [ -n "$2" ]; then
QUICKLOOK=1 QLPATH="$2" PREVIEW_MODE=1 "$0" "$1" >/dev/null &
else
PAGERPID="$PAGERPID" IMGPID="$IMGPID" CURSEL="$CURSEL" PREVIEW_MODE=1 \
FIFO_UEBERZUG="$FIFO_UEBERZUG" $TERMINAL -e "$0" "$1" 2>/dev/null &
fi
}
togglepreview() {
if exists QuickLook.exe; then if exists QuickLook.exe; then
QLPATH="QuickLook.exe" QLPATH="QuickLook.exe"
elif exists Bridge.exe; then elif exists Bridge.exe; then
QLPATH="Bridge.exe" QLPATH="Bridge.exe"
fi fi
if pkill -fx "cat $NNN_FIFO" >/dev/null; then if pkill -P "$(cat "$FIFOPID")"; then
if [ -n "$QLPATH" ] && stat "$1" >/dev/null 2>&1; then if [ -n "$QLPATH" ] && stat "$1"; then
f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" & f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
fi fi
else else
startpreview "$1" "$QLPATH" start_preview "$1" "$QLPATH"
fi fi
} } >/dev/null 2>&1
exists() { exists() {
type "$1" >/dev/null 2>&1 type "$1" >/dev/null
} }
fifo_pager() { fifo_pager() {
@ -178,7 +176,7 @@ fifo_pager() {
if [ "$cmd" = "pager" ]; then if [ "$cmd" = "pager" ]; then
if exists bat; then if exists bat; then
bat --terminal-width="$(tput cols)" --decorations=always --color=always \ bat --terminal-width="$(tput cols)" --decorations=always --color=always \
--paging=never --style="${BAT_STYLE:-numbers}" "$@" 2>/dev/null & --paging=never --style="$BAT_STYLE" "$@" &
else else
$PAGER "$@" & $PAGER "$@" &
fi fi
@ -188,13 +186,13 @@ fifo_pager() {
) )
rm "$tmpfifopath" rm "$tmpfifopath"
} } 2>/dev/null
# Binary file: show file info inside the pager # Binary file: show file info inside the pager
print_bin_info() { print_bin_info() {
printf -- "-------- \033[1;31mBinary file\033[0m --------\n" printf -- "-------- \033[1;31mBinary file\033[0m --------\n"
if exists mediainfo; then if exists mediainfo; then
mediainfo "$1" 2>/dev/null mediainfo "$1"
else else
file -b "$1" file -b "$1"
fi fi
@ -267,19 +265,17 @@ preview_file() {
# Trying to use scope.sh if it's available. # Trying to use scope.sh if it's available.
if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then if [ "$USE_SCOPE" -ne 0 ] && exists scope.sh; then
fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" \ fifo_pager scope.sh "$1" "$cols" "$lines" "$(mktemp -d)" "True"
"True" 2>/dev/null
return return
fi fi
# Use QuickLook if it's available. # Use QuickLook if it's available.
if [ -n "$QUICKLOOK" ]; then if [ -n "$QUICKLOOK" ]; then
stat "$1" >/dev/null 2>&1 && f="$(wslpath -w "$1" 2>&1)" && "$QLPATH" "$f" & stat "$1" && f="$(wslpath -w "$1")" && "$QLPATH" "$f" &
return return
fi fi
# Detecting the exact type of the file: the encoding, mime type, and # Detecting the exact exists of the file: the encoding, mime type, and extension in lowercase.
# extension in lowercase.
encoding="$(file -bL --mime-encoding -- "$1")" encoding="$(file -bL --mime-encoding -- "$1")"
mimetype="$(file -bL --mime-type -- "$1")" mimetype="$(file -bL --mime-type -- "$1")"
ext="${1##*.}" ext="${1##*.}"
@ -291,14 +287,13 @@ preview_file() {
if [ -d "$1" ]; then if [ -d "$1" ]; then
cd "$1" || return cd "$1" || return
if [ "$ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then if [ "$ICONLOOKUP" -ne 0 ] && [ -f "$(dirname "$0")"/.iconlookup ]; then
[ "$SPLIT" = h ] && [ "$TERMINAL" != "kitty" ] && BSTR="\n" [ "$SPLIT" = v ] && BSTR="\n"
[ "$SPLIT" = v ] && [ "$TERMINAL" = "kitty" ] && BSTR="\n"
# shellcheck disable=SC2012 # shellcheck disable=SC2012
ls -F --group-directories-first | head -n "$((lines - 3))" | "$(dirname "$0")"/.iconlookup -l "$cols" -B "$BSTR" -b " " ls -F --group-directories-first | head -n "$((lines - 3))" | "$(dirname "$0")"/.iconlookup -l "$cols" -B "$BSTR" -b " "
elif exists tree; then elif exists tree; then
fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport fifo_pager tree --filelimit "$(find . -maxdepth 1 | wc -l)" -L 3 -C -F --dirsfirst --noreport
elif exists exa; then elif exists exa; then
exa -G --group-directories-first --colour=always 2>/dev/null exa -G --group-directories-first --colour=always
else else
fifo_pager ls -F --group-directories-first --color=always fifo_pager ls -F --group-directories-first --color=always
fi fi
@ -307,17 +302,17 @@ preview_file() {
else else
handle_mime "$1" "$mimetype" "$ext" handle_mime "$1" "$mimetype" "$ext"
fi fi
} } 2>/dev/null
generate_preview() { generate_preview() {
if [ -n "$QLPATH" ] && stat "$3" >/dev/null 2>&1; then if [ -n "$QLPATH" ] && stat "$3"; then
f="$(wslpath -w "$3" 2>&1)" && "$QLPATH" "$f" & f="$(wslpath -w "$3")" && "$QLPATH" "$f" &
elif [ ! -f "$NNN_PREVIEWDIR/$3.jpg" ] || [ -n "$(find -L "$3" -newer "$NNN_PREVIEWDIR/$3.jpg")" ]; then elif [ ! -f "$NNN_PREVIEWDIR/$3.jpg" ] || [ -n "$(find -L "$3" -newer "$NNN_PREVIEWDIR/$3.jpg")" ]; then
mkdir -p "$NNN_PREVIEWDIR/${3%/*}" mkdir -p "$NNN_PREVIEWDIR/${3%/*}"
case $4 in case $4 in
audio) ffmpeg -i "$3" -filter_complex "scale=iw*min(1\,min($NNN_PREVIEWWIDTH/iw\,ih)):-1" "$NNN_PREVIEWDIR/$3.jpg" -y >/dev/null 2>&1 ;; 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" >/dev/null 2>&1 ;; epub) gnome-epub-thumbnailer "$3" "$NNN_PREVIEWDIR/$3.jpg" ;;
font) fontpreview -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" >/dev/null 2>&1 ;; font) fontpreview -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" ;;
gif) if exists ueberzug && exists convert && [ "$TERMINAL" != "kitty" ]; then gif) if exists ueberzug && exists convert && [ "$TERMINAL" != "kitty" ]; then
if [ ! -d "$NNN_PREVIEWDIR/$3" ]; then if [ ! -d "$NNN_PREVIEWDIR/$3" ]; then
mkdir -p "$NNN_PREVIEWDIR/$3" mkdir -p "$NNN_PREVIEWDIR/$3"
@ -336,11 +331,11 @@ generate_preview() {
return return
fi ;; fi ;;
image) convert "$3" -flatten -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$NNN_PREVIEWDIR/$3.jpg" ;; image) convert "$3" -flatten -resize "$NNN_PREVIEWWIDTH"x"$NNN_PREVIEWHEIGHT"\> "$NNN_PREVIEWDIR/$3.jpg" ;;
office) libreoffice --convert-to jpg "$3" --outdir "$NNN_PREVIEWDIR/${3%/*}" > /dev/null 2>&1 office) libreoffice --convert-to jpg "$3" --outdir "$NNN_PREVIEWDIR/${3%/*}"
filename="$(printf "%s" "${3##*/}" | cut -d. -f1)" filename="$(printf "%s" "${3##*/}" | cut -d. -f1)"
mv "$NNN_PREVIEWDIR/${3%/*}/$filename.jpg" "$NNN_PREVIEWDIR/$3.jpg" ;; mv "$NNN_PREVIEWDIR/${3%/*}/$filename.jpg" "$NNN_PREVIEWDIR/$3.jpg" ;;
pdf) pdftoppm -jpeg -f 1 -singlefile "$3" "$NNN_PREVIEWDIR/$3" >/dev/null 2>&1 ;; pdf) pdftoppm -jpeg -f 1 -singlefile "$3" "$NNN_PREVIEWDIR/$3" ;;
video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" >/dev/null 2>&1 || rm "$NNN_PREVIEWDIR/$3.jpg" ;; video) ffmpegthumbnailer -s0 -i "$3" -o "$NNN_PREVIEWDIR/$3.jpg" || rm "$NNN_PREVIEWDIR/$3.jpg" ;;
esac esac
fi fi
if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then if [ -f "$NNN_PREVIEWDIR/$3.jpg" ]; then
@ -348,30 +343,27 @@ generate_preview() {
else else
fifo_pager print_bin_info "$3" fifo_pager print_bin_info "$3"
fi fi
} } >/dev/null 2>&1
image_preview() { image_preview() {
clear clear
if [ "$TERMINAL" = "kitty" ]; then if [ "$TERMINAL" = "kitty" ]; then
# Kitty terminal users can use the native image preview method although one might consider # Kitty terminal users can use the native image preview method
# installing ueberzug and moving the ueberzug clause to the top since it performs alot better.
kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" & kitty +kitten icat --silent --place "$1"x"$2"@0x0 --transfer-mode=stream --stdin=no "$3" &
printf "%s" "$!" > "$IMGPID"
elif exists ueberzug; then elif exists ueberzug; then
ueberzug_layer "$1" "$2" "$3" ueberzug_layer "$1" "$2" "$3" && return
elif exists catimg; then elif exists catimg; then
catimg "$3" & catimg "$3" &
printf "%s" "$!" > "$IMGPID"
elif exists viu; then elif exists viu; then
viu -t "$3" & viu -t "$3" &
printf "%s" "$!" > "$IMGPID"
else else
fifo_pager print_bin_info "$3" fifo_pager print_bin_info "$3" && return
fi fi
} printf "%s" "$!" > "$IMGPID"
} 2>/dev/null
ueberzug_layer() { ueberzug_layer() {
printf '{"action": "add", "identifier": "nnn_ueberzug", "x": 0, "y": 0, "width": "%s", "height": "%s", "scaler": "fit_contain", "path": "%s"}\n' "$1" "$2" "$3" > "$FIFO_UEBERZUG" 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() { ueberzug_remove() {
@ -380,46 +372,40 @@ ueberzug_remove() {
ueberzug_refresh() { ueberzug_refresh() {
clear clear
kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1 kill "$(cat "$IMGPID")"
pkill -P "$$" >/dev/null 2>&1 kill "$(cat "$PAGERPID")"
pkill -f -n preview-tui-ext >/dev/null 2>&1 pkill -P "$$"
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json & tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
printf "\n" > "$NNN_FIFO" cat "$CURSEL" > "$NNN_FIFO"
preview_fifo 2>/dev/null & preview_fifo &
preview_file "$(cat "$CURSEL")" preview_file "$(cat "$CURSEL")"
wait wait "$!"
} } 2>/dev/null
preview_fifo() { preview_fifo() {
# use cat instead of 'exec <' to avoid issues with dash shell printf "%s" "$$" > "$FIFOPID"
# shellcheck disable=SC2002
cat "$NNN_FIFO" |\
while read -r selection; do while read -r selection; do
kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1 kill "$(cat "$IMGPID")"
kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1 kill "$(cat "$PAGERPID")"
[ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove [ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
preview_file "$selection" preview_file "$selection"
printf "%s" "$selection" > "$CURSEL" printf "%s" "$selection" > "$CURSEL"
done done < "$NNN_FIFO"
kill "$(cat "$IMGPID" 2>/dev/null)" >/dev/null 2>&1 } 2>/dev/null
kill "$(cat "$PAGERPID" 2>/dev/null)" >/dev/null 2>&1
[ "$TERMINAL" != "kitty" ] && exists ueberzug && ueberzug_remove
rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" >/dev/null 2>&1
pkill -P "$$" >/dev/null 2>&1
}
if [ "$PREVIEW_MODE" ]; then if [ "$PREVIEW_MODE" ]; then
if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then if [ "$TERMINAL" != "kitty" ] && exists ueberzug; then
mkfifo "$FIFO_UEBERZUG" mkfifo "$FIFO_UEBERZUG"
trap 'ueberzug_refresh; rm "$FIFO_UEBERZUG"' WINCH trap 'ueberzug_refresh' WINCH
tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json & tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser json &
fi fi
trap 'rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" 2>/dev/null' INT HUP EXIT
printf "%s" "$PWD/$1" > "$CURSEL"
preview_file "$PWD/$1" preview_file "$PWD/$1"
printf "%s" "$PWD/$1" > "$CURSEL" & preview_fifo &
preview_fifo 2>/dev/null & wait "$!"
wait rm "$PAGERPID" "$IMGPID" "$CURSEL" "$FIFO_UEBERZUG" "$FIFOPID" 2>/dev/null
pkill -P "$$"
else else
if [ ! -r "$NNN_FIFO" ]; then if [ ! -r "$NNN_FIFO" ]; then
clear clear
@ -430,6 +416,6 @@ else
printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui-ext." printf "\$KITTY_LISTEN_ON not set!\nPlease read Usage in preview-tui-ext."
cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg" cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
else else
togglepreview "$1" & toggle_preview "$1" &
fi fi
fi fi