dropdown terminal for i3?

dropdown_term.sh

#!/bin/bash
#
# dropdown_terminal.sh
#

# Usage: dropdown_terminal.sh
# Just call it to open the terminal, call it again to close it.
#
# If you're familliar with tmux, it also sets a session group, so maybe this
# could be extended to utilize those in some way, but I'm probably not going
# to do that myself.
#
# Actually, if you want, you can take bin/tmx from my Dotfiles repo and use
# that instead if you really wanted to have manual access, but I'm not sure how
# much anyone cares about that.

DROPDOWN_SCRIPT="$0"
DROPDOWN_ARG=dropdown_initialization_argument

start_terminal() {
	TERM_ID="$(i3-msg -t get_tree | jq '.. | select(.marks? | contains(["dropdown"])?) | .id')"
	if [[ -z $TERM_ID ]]; then
		urxvt -T dropdown -e "$DROPDOWN_SCRIPT" "$DROPDOWN_ARG" &
	else
		i3-msg "[con_id=$TERM_ID] kill"
	fi
}

start_dropdown() {
	# set_urxvt_title() {
	# 	echo -ne "\033]0;$1\007"
	# }

	# set_urxvt_title dropdown

	count=0
	while ! i3-msg '[title="^dropdown$"] mark dropdown' | jq -e '.[].success'; do
		count=$(($count+1))
		if [[ $count -gt 20 ]]; then
			echo "Attempt to mark container timed out."
			sleep 3
			exit 1
		fi
		echo "Could not mark container. Does it exist?"
		sleep 0.1
	done

	# Float, resize, and move the dropdown terminal.
	i3-msg '[con_mark="^dropdown$"] floating enable, sticky enable, resize set width 100 ppt height 50 ppt, move position 0 0'

	# Attach or create a tmux session named dropdown.
	tmux attach-session -t dropdown >/dev/null \
	|| tmux new-session -t dropdown -s dropdown
	# In new-session only, the -t flag actually sets a group, which might be
	# useful to people familliar with tmux. It's not used at all here, but for
	# the sake of being able to add it later without having to recreate the
	# session, it's included anyway.
}

# Check if the script was called by itself using the magic word.
# Otherwise, perform as normal.
case $1 in
	$DROPDOWN_ARG)
		start_dropdown
	;;
	*)
		start_terminal
	;;
esac