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#!/usr/bin/env sh
# Description: Open a Drag and drop window, to drop files onto other programs.
# Also provides drag and drop window for files.
#
# Dependencies:
# - dragon (https://github.com/mwh/dragon), or
# - kitty (https://github.com/kovidgoyal/kitty)
#
# Notes if using dragon:
# 1. Files that are dropped will be added to nnn's selection
# Some web-based files will be downloaded to current dir
# with curl and it may overwrite some existing files
# 2. The user has to mm to clear nnn's selection first
#
# Shell: POSIX compliant
# Author: 0xACE
# If you want system notification, put this equal to 1
notify=0
selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection}
resp=f
all=
if type dragon-drag-and-drop >/dev/null 2>&1; then
dnd="dragon-drag-and-drop"
elif type dragon-drop >/dev/null 2>&1; then
dnd="dragon-drop"
elif [ "$TERM" = "xterm-kitty" ]; then
dnd="kitten dnd"
else
dnd="dragon"
fi
add_file()
{
printf '%s\0' "$@" >>"$selection"
}
use_all()
{
printf "mark --all (a) [default=none]: "
read -r resp
if [ "$resp" = "a" ]; then
all="--all"
else
all=""
fi
}
if [ -s "$selection" ]; then
printf "Drop file (r). Drag selection (s), Drag current directory (d) or drag current file (f) [default=f]: "
read -r resp
else
printf "Drop file (r). Drag current directory (d) or drag current file (f) [default=f]: "
read -r resp
if [ "$resp" = "s" ]; then
resp=f
fi
fi
clear_tui()
{
pid=$!
reset # nnn to dnd
wait $pid
reset # dnd to nnn
}
if [ "$dnd" = "kitten dnd" ]; then
if [ "$resp" = "s" ]; then
# shellcheck disable=SC2086
xargs -0 $dnd 2>/dev/null <"$selection" &
elif [ "$resp" = "d" ]; then
$dnd "$PWD/"* 2>/dev/null &
else # send one or receive
$dnd "$1" 2>/dev/null &
fi
clear_tui
if [ "$resp" = "s" ]; then
[ -p "$NNN_PIPE" ] && printf "-" >"$NNN_PIPE" # clear selection
fi
else
if [ "$resp" = "s" ]; then
use_all
sed -z 's|'"$PWD/"'||g' <"$selection" | xargs -0 "$dnd" "$all" 2>/dev/null &
elif [ "$resp" = "d" ]; then
use_all
"$dnd" "$all" "$PWD/"* 2>/dev/null &
elif [ "$resp" = "r" ]; then
true >"$selection"
"$dnd" --print-path --target 2>/dev/null | while read -r f; do
if printf "%s" "$f" | grep -q '^\(https\?\|ftps\?\|s\?ftp\)://'; then
if output=$(curl -fsLJOS "$f" 2>&1); then
filename="$(basename "${f%%\?*}")"
add_file "$PWD/$filename"
if [ $notify = 1 ]; then
notify-send "Download Complete" "Finished downloading $filename"
fi
else
if [ $notify = 1 ]; then
notify-send "Download Failed" "$output"
else
echo "Download Failed: $output"
fi
fi
elif [ -e "$f" ]; then
add_file "$f"
fi
done &
elif [ -n "$1" ] && [ -e "$1" ]; then
"$dnd" "$1" 2>/dev/null &
fi
fi
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