key-handler

#!/bin/sh

delete_file() {
	if gio trash -- "$file" || trash-put -- "$file"; then
		echo "🗑️ '${file##*/}' moved to trash."
	elif [ -f "$file" ] && [ "$(printf -- 'No\nYes' | dmenu -i -p "Really delete '$file'?")" = "Yes" ]; then
		if rm -- "$file"; then
			echo "☑️ '${file##*/}' deleted." &
		else
			echo "❌ '${file##*/}' wasn't deleted."
		fi
	fi
}

copy_file() {
	if cp -- "$file" "$destdir"; then
		echo "✅ '${file##*/}' copied to $destdir."
	else
		echo "❌ '${file##*/}' wasn't copied to $destdir."
	fi
}

move_file() {
	if mv -- "$file" "$destdir"; then
		echo "✅ '${file##*/}' moved to $destdir."
	else
		echo "❌ '${file##*/}' wasn't moved to $destdir."
	fi
}

ask_dir() {
	destdir="$(listmarks dirs | dmenu -l 20 -i -p "$1 file(s) to where?")"
	[ -z "$destdir" ] && notify-send "${0##*/}" "Nothing selected, cancelled." && exit
	[ ! -d "$destdir" ] && notify-send "${0##*/}" "'$destdir' is not a directory, cancelled." && exit
}

notify_do() {
	result=$(
		while read -r file; do
			if [ -f "$file" ]; then
				"$@"
			else
				echo "🔥 '${file##*/}' does not exist."
			fi
		done
	)
	notify-send "${0##*/} processed $(echo "$result" | wc -l) files" "$result" &
}

first_file() {
	while read -r file; do echo "$file"; return; done
}

case "$1" in
"d")
	# Trash or remove all selected files.
	notify_do delete_file
	;;
"c")
	# Copy all selected files to a selected directory.
	ask_dir Copy
	notify_do copy_file
	;;
"m")
	# Move all selected files to a selected directory.
	ask_dir Move
	notify_do move_file
	;;
"i")
	# Display detailed media info for the current image.
	notify-send -t 0 "File information" "$(mediainfo -- "$(first_file)" | sed "s/[ ]\+:/:/g;s/: /: <b>/;s/$/<\/b>/" | grep "<b>")"
	;;
"w")
	# Set the current file as a desktop background image.
	setbg "$(first_file)"
	;;
"W")
	# Convert the current file to webp.
	file=$(first_file)
	cwebp "$file" -sns 100 -sharp_yuv -f 100 -pass 10 -af -mt -m 6 -o "${file%.*}.webp" &
	;;
"r")
	# Rotate the current file by 90 degrees.
	file=$(first_file)
	convert -rotate 90 "$file" "$file"
	;;
"R")
	# Rotate the current file by -90 degrees.
	file=$(first_file)
	convert -rotate -90 "$file" "$file"
	;;
"f")
	# Flop the current file.
	file=$(first_file)
	convert -flop "$file" "$file"
	;;
"I")
	# Negate the current file.
	file=$(first_file)
	convert "$file" -channel RGB -negate "$file"
	;;
"y")
	# Copy file name to the clipboard.
	file=$(first_file)
	printf -- "%s" "$file" | tr -d '\n' | xclip -selection clipboard &&
		notify-send -i "$file" "$file copied to clipboard" &
	;;
"Y")
	# Copy file path to the clipboard.
	file=$(first_file)
	readlink -f -- "$file" | tr -d '\n' | xclip -selection clipboard &&
		notify-send -i "$file" "${0##*/}" "$(readlink -f -- "$file") copied to clipboard" &
	;;
"g")
	# Edit the current file in gimp.
	ifinstalled gimp && setsid -f gimp "$(first_file)"
	;;
"t")
	# Tag the current file using lf. E.g, the last read manga page.
	# When sxiv is launched as a child of lf, the 'id' vairable must be set.
	if [ -n "$id" ] && ifinstalled lf; then
		 lf -remote "send $id select  \"$(first_file)\"  "
		 lf -remote "send $id tag x"
	fi
	;;
*)
	notify-send "${0##*/}" "$1 is not bound." &
	;;
esac