popoutdisplay_blue

#!/bin/bash
#popoutdisplay written on 07.09.2018 by derberg
#Improved V2 (with while loop) created: 21. Dec 2018
#Added blue input: 22.12.2018

#create terminal with specific size and get it's process id
aterm -bl -g 80x23 & export APP_PID=$!
echo Process id: $APP_PID
#get window id in dec from process id [sleep or else it may be to fast to get an ID..]
sleep 1
DEC_ID=$(xdotool search --pid $APP_PID)
echo Window id [DEC]: $DEC_ID 
#convert window id to hex
HEX_ID=$(printf 0x%x $DEC_ID)
echo Window id [HEX]: $HEX_ID

#make the window always on top
wmctrl -i -r $HEX_ID -b add,above

#Create the virtual display, run window manager [so that fullscreen, etc. works correctly], 
#and start a web browser
Xephyr -ac -br -noreset -parent $HEX_ID :1337 &> /dev/null &
sleep 1 &

#Spawn apps
echo "Expect buggy behaviour without a wm (Recommended: awesome)"
RED='\033[0;31m'
NC='\033[0m' # No Color
while true; do
    	sleep 5 &
    	printf "Enter ${RED}app name${NC} you want to start: "
    		
		x='' HEX='7f' string='';
                while [[ $HEX != "" ]]; do
                i=16 n=21
                while [[ $HEX != "" ]]; do
                        read -sn1 x;
                        HEX=$(echo $(printf "$x" | od -t x1) | grep -o -P '(?<=0000000 ).*(?= 0000001)')
                        if [[ $HEX == "7f" ]]; then break; fi
                        string=$string"\x"$HEX
                        if [ "$i" != "21" ]
                          then ((i=i+1)); printf "\e[48;5;${i}m $x \e[0m";
                          else if [ "$n" != "17" ]
                                 then ((n=n-1)); printf "\e[48;5;${n}m $x \e[0m";
                                 else i=17 n=21; printf "\e[48;5;${i}m $x \e[0m";
                               fi
                        fi
                done;
                string=$(echo -e $string | sed 's/\\x/ /g')
                if [[ -z $string ]]; then string=$(echo -e ${string}); else string=$(echo -e ${string::-1}); fi
               	APP_NAME=$string
                echo ""
                tput cuu1 # move cursor up by one line
                tput el # clear the line
		printf "Enter ${RED}app name${NC} you want to start: "
                #repeat without last char
                i=16 n=21
                for (( s=0 ; s<${#string} ; s++ )); do
                        if [ "$i" != "21" ]
                          then ((i=i+1)); printf "\e[48;5;${i}m ${string:$s:1} \e[0m";
                          else if [ "$n" != "17" ]
                                 then ((n=n-1)); printf "\e[48;5;${n}m ${string:$s:1} \e[0m";
                                 else i=17 n=21; printf "\e[48;5;${i}m ${string:$s:1} \e[0m";
                               fi
                        fi
                done
                done;

DISPLAY=:1337 $APP_NAME &> /dev/null & #errors thrown away
printf "\n"
done;