Bash Fancy Menu

anon94368460 · 14 July 2020 08:35

I was a little bored last night while watching Wimpy's World episode ( sorry @Wimpy ) and
found this bash fancy menu on askubuntu

Interesting style of scripting

.
Fixed some issues, Inputing several keys triggered the menu item and removed/replaced some ANSI escape codes with hexadecimal characters.
The less ANSI the better. On one terminal it's ok but on another makes a mess.
So I thought t would make a good menu for desktopify.
peekM7HIN0

Anyway here's the script:

#!/bin/bash

# Borrowed from https://askubuntu.com/questions/1705/how-can-i-create-a-select-menu-in-a-shell-script
#               by oToGamez
#               www.pro-toolz.net

      E='echo -e';e='echo -en';trap "R;exit" 2
    ESC=$( $e "\e")
   TPUT(){ $e "\e[${1};${2}H" ;}
  CLEAR(){ $e "\ec";}
  CIVIS(){ $e "\e[?25l";}
   MARK(){ $e "\e[7m";}
 UNMARK(){ $e "\e[27m";}
      R(){ CLEAR ;stty sane;CLEAR;};
   HEAD(){ for each in $(seq 1 15);do
           $E "   \xE2\x94\x82                                          \xE2\x94\x82"
           done
           MARK;TPUT 1 5
           $E "              DESKTOPIFY                  " ;UNMARK;
           TPUT 2 5
           $E "      SELECT A DESKTOP ENVIRONMENT        " ;UNMARK;}
           i=0; CLEAR; CIVIS;NULL=/dev/null
   FOOT(){ MARK;TPUT 15 5
           $E " UP \xE2\x86\x91 \xE2\x86\x93 DOWN    ENTER - SELECT,NEXT       ";UNMARK;}
  ARROW(){ IFS= read -s -n1 key 2>/dev/null >&2
           if [[ $key = $ESC ]];then 
              read -s -n1 key 2>/dev/null >&2;
              if [[ $key = \[ ]]; then
                 read -s -n1 key 2>/dev/null >&2;
                 if [[ $key = A ]]; then echo up;fi
                 if [[ $key = B ]];then echo dn;fi
              fi
           fi
           if [[ "$key" == "$($e \\x0A)" ]];then echo enter;fi;}
     M0(){ TPUT  4 20; $e "Lubuntu";}
     M1(){ TPUT  5 20; $e "Kubuntu";}
     M2(){ TPUT  6 20; $e "Ubuntu";}
     M3(){ TPUT  7 20; $e "Ubuntu-Budgie";}
     M4(){ TPUT  8 20; $e "Ubuntu-Kylin";}
     M5(){ TPUT  9 20; $e "Ubuntu-Mate";}
     M6(){ TPUT 10 20; $e "Ubuntu-Studio";}
     M7(){ TPUT 11 20; $e "Xubuntu";}
     M8(){ TPUT 12 20; $e "EXIT   ";}
      LM=8
   MENU(){ for each in $(seq 0 $LM);do M${each};done;}
    POS(){ if [[ $cur == up ]];then ((i--));fi
           if [[ $cur == dn ]];then ((i++));fi
           if [[ $i -lt 0   ]];then i=$LM;fi
           if [[ $i -gt $LM ]];then i=0;fi;}
REFRESH(){ after=$((i+1)); before=$((i-1))
           if [[ $before -lt 0  ]];then before=$LM;fi
           if [[ $after -gt $LM ]];then after=0;fi
           if [[ $j -lt $i      ]];then UNMARK;M$before;else UNMARK;M$after;fi
           if [[ $after -eq 0 ]] || [ $before -eq $LM ];then
           UNMARK; M$before; M$after;fi;j=$i;UNMARK;M$before;M$after;}
   INIT(){ R;HEAD;FOOT;MENU;}
     SC(){ REFRESH;MARK;$S;$b;cur=`ARROW`;}
     ES(){ MARK;$e "ENTER = main menu ";$b;read;INIT;};INIT
  while [[ "$O" != " " ]]; do case $i in
        0) S=M0;SC;if [[ $cur == enter ]];then R;$e "\n$($e lubuntu)\n";ES;fi;;
        1) S=M1;SC;if [[ $cur == enter ]];then R;$e "\n$($e kubuntu)\n";ES;fi;;
        2) S=M2;SC;if [[ $cur == enter ]];then R;$e "\n$($e ubuntu)\n";ES;fi;;
        3) S=M3;SC;if [[ $cur == enter ]];then R;$e "\n$($e ubuntu-budgie)\n";ES;fi;;
        4) S=M4;SC;if [[ $cur == enter ]];then R;$e "\n$($e ubuntu-kylin)\n";ES;fi;;
        5) S=M5;SC;if [[ $cur == enter ]];then R;$e "\n$($e ubuntu-mate)\n";ES;fi;;
        6) S=M6;SC;if [[ $cur == enter ]];then R;$e "\n$($e ubuntu-studio)\n";ES;fi;;
        7) S=M7;SC;if [[ $cur == enter ]];then R;$e "\n$($e xubuntu)\n";ES;fi;;
        8) S=M8;SC;if [[ $cur == enter ]];then R;exit 0;fi;;
 esac;POS;done

anon94368460 · 15 July 2020 17:30

Not sure about the wording.
Is "force desktop package install" close enough?
peek25KRN0
So save the file in the same dir as desktopify and make executable.
Then cd to that dir and run.

#!/bin/bash

# Wrapper for desktopify Misko_2083
# Menu code adapted from https://askubuntu.com/questions/1705/how-can-i-create-a-select-menu-in-a-shell-script
# Run from the same dir as desktopify


      E='echo -e';e='echo -en';trap "R;exit" 2
    ESC=$( $e "\e")
   TPUT(){ $e "\e[${1};${2}H" ;}
  CLEAR(){ $e "\ec";}
  CIVIS(){ $e "\e[?25l";}
   MARK(){ $e "\e[7m";}
 UNMARK(){ $e "\e[27m";}
cursor_blink_on()   { printf "$ESC[?25h"; }
cursor_blink_off()  { printf "$ESC[?25l"; }
      R(){ CLEAR ;stty sane;CLEAR;};
   HEAD(){ for each in $(seq 1 15);do
           $E "   \xE2\x94\x82                                          \xE2\x94\x82"
           done
           MARK;TPUT 1 5
           $E "              DESKTOPIFY                  " ;UNMARK;
           TPUT 2 5
           $E "      SELECT A DESKTOP ENVIRONMENT        " ;}
HEAD_II(){ for each in $(seq 1 15);do
           $E "   \xE2\x94\x82                                          \xE2\x94\x82"
           done
           MARK;TPUT 1 5
           $E "              DESKTOPIFY                  " ;UNMARK;
           TPUT 2 5
           $E "        SELECT ADDITIONAL OPTIONS         " ;
           TPUT 4 10
           $E "  Desktop Environment $1" ;}
           i=0; CLEAR; CIVIS;
   FOOT(){ MARK;TPUT 15 5
           $E " UP \xE2\x86\x91 \xE2\x86\x93 DOWN \xE2\x94\x82 \xe2\x86\xb5 ENTER - NEXT \xE2\x94\x82 EXIT - X  ";UNMARK;}
FOOT_II(){ MARK;TPUT 14 5
           $E "     \xe2\x86\x90  BACK \xE2\x94\x82 SPACE - SELECT \xE2\x94\x82           ";
           TPUT 15 5
           $E " UP \xE2\x86\x91 \xE2\x86\x93 DOWN \xE2\x94\x82 \xe2\x86\xb5 ENTER - NEXT \xE2\x94\x82 EXIT - X  ";UNMARK;}
  ARROW(){ IFS= read -s -n1 key 2>/dev/null >&2
           if [[ $key = $ESC ]];then 
              read -s -n2 key 2>/dev/null >&2;
              if [[ $key = \[A ]]; then echo up;fi
              if [[ $key = \[B ]]; then echo dn;fi
           fi
           if [[  $key  = [xX]   ]]; then echo exit;fi;
           if [[ "$key" = ""     ]];then echo enter;fi;}
     M0(){ TPUT  4 20; $e "Lubuntu";}
     M1(){ TPUT  5 20; $e "Kubuntu";}
     M2(){ TPUT  6 20; $e "Ubuntu";}
     M3(){ TPUT  7 20; $e "Ubuntu-Budgie";}
     M4(){ TPUT  8 20; $e "Ubuntu-Kylin";}
     M5(){ TPUT  9 20; $e "Ubuntu-Mate";}
     M6(){ TPUT 10 20; $e "Ubuntu-Studio";}
     M7(){ TPUT 11 20; $e "Xubuntu";}
     M8(){ TPUT 12 20; $e "EXIT   ";}
      LM=8
   MENU(){ for each in $(seq 0 $LM);do M${each};done;}
    POS(){ if [[ $cur == up ]];then ((i--));fi
           if [[ $cur == dn ]];then ((i++));fi
           if [[ $i -lt 0   ]];then i=$LM;fi
           if [[ $i -gt $LM ]];then i=0;fi;}
REFRESH(){ after=$((i+1)); before=$((i-1))
           if [[ $before -lt 0  ]];then before=$LM;fi
           if [[ $after -gt $LM ]];then after=0;fi
           if [[ $j -lt $i      ]];then UNMARK;M$before;else UNMARK;M$after;fi
           if [[ $after -eq 0 ]] || [ $before -eq $LM ];then
           UNMARK; M$before; M$after;fi;j=$i;UNMARK;M$before;M$after;}
   INIT(){ R;HEAD;FOOT;MENU;}
     SC(){ REFRESH;MARK;$S;$b;cur=`ARROW`;}
     ES(){ INIT;};INIT
    MSEL() { cursor_blink_on()   { printf "$ESC[?25h"; }
             cursor_blink_off()  { printf "$ESC[?25l"; }
             cursor_to()         { printf "$ESC[$1;${2:-1}H"; }
             print_inactive()    { printf "$2  $1 "; }
             print_active()      { printf "$2  $ESC[7m$1 $ESC[27m"; }
             get_cursor_row()    { IFS=';' read -sdR -p $'\E[6n' ROW COL; echo ${ROW#*[}; }
             key_input()         {
             local key
             IFS= read -rsn1 key 2>/dev/null >&2
             if [[ $key = ""      ]]; then echo enter; fi;
             if [[ $key = [xX]    ]]; then echo exit;  fi;
             if [[ $key = $'\x20' ]]; then echo space; fi;
             if [[ $key = $'\x1b' ]]; then
               read -rsn2 key
               if [[ $key = [A ]]; then echo up;    fi;
               if [[ $key = [B ]]; then echo down;  fi;
               if [[ $key = [D ]]; then echo back;  fi;
             fi;}
             toggle_option()    {
               local arr_name=$1
               eval "local arr=(\"\${${arr_name}[@]}\")"
               local option=$2
               if [[ ${arr[option]} == true ]]; then
                 arr[option]=
               else
                 arr[option]=true
               fi
               eval $arr_name='("${arr[@]}")';}

            local retval=$1
            local options
            local defaults

            IFS=';' read -r -a options <<< "$2"
            if [[ -z $3 ]]; then
              defaults=()
            else
              IFS=';' read -r -a defaults <<< "$3"
            fi
            local selected=()

           for ((i=0; i<${#options[@]}; i++)); do
             selected+=("${defaults[i]}")
             printf "\n"
           done

           # determine current screen position for overwriting the options
           local lastrow=`get_cursor_row`
           local startrow=$(($lastrow - ${#options[@]}))

           # ensure cursor and input echoing back on upon a ctrl+c during read -s
           trap "cursor_blink_on; stty echo; printf '\n'; exit" 2
           cursor_blink_off
           local active=0
           while true; do
             # print options by overwriting the last lines
             local idx=0
             for option in "${options[@]}"; do
               local prefix="[ ]"
               if [[ ${selected[idx]} == true ]]; then
                 prefix="[x]"
               fi

               cursor_to $(($startrow + $idx))
               if [ $idx -eq $active ]; then
                 if [ $option == OEM ]; then
                    TPUT  $((idx+6)) 6
                    print_active "$option" "$prefix"
                    TPUT $((idx+7)) 11
                    $e "Run a setup wizard on the next boot"
                 elif [ $option == FORCE ]; then
                    TPUT  $((idx+8)) 6
                    print_active "$option" "$prefix"
                    TPUT $((idx+9)) 11
                    $e "Force desktop package install"
                 fi
               else
                 if [ $option == OEM ]; then
                    TPUT  $((idx+6)) 6
                    print_inactive "$option" "$prefix"
                    TPUT $((idx+7)) 11
                    $e "Run a setup wizard on the next boot"
                 elif [ $option == FORCE ]; then
                    TPUT  $((idx+8)) 6
                    print_inactive "$option" "$prefix"
                    TPUT $((idx+9)) 11
                    $e "Force desktop package install"
                 fi
               fi
               ((idx++))
             done

            # user key control
            case `key_input` in
              space)  toggle_option selected $active;;
              enter)  break;;
                 up)  ((active--));
                      if [ $active -lt 0 ]; then active=$((${#options[@]} - 1)); fi;;
               down)  ((active++));
                      if [ $active -ge ${#options[@]} ]; then active=0; fi;;
               back)  CLEAR; exec $0;;
               exit)  CLEAR;exit 0;;
            esac
           done

           # cursor position back to normal
           cursor_to $lastrow
           printf "\n"
           cursor_blink_on
           eval $retval='("${selected[@]}")'
       }

  RUN(){
         if [[ $cur != back ]];then 
          R;HEAD_II "$1"
          FOOT_II;
           
          MSEL result "OEM;FORCE" "false;;false"
          CLEAR
          ARG=
          if [[ ${result[0]} == true ]]; then
            ARG="--oem"
          fi
          if [[ ${result[1]} == true ]]; then
            ARG="$ARG --force"
          fi

          $E "sudo ./desktopify $ARG --de $1"
          sudo ./desktopify $ARG --de $1 

          break
         fi
       }

  # ensure cursor and input echoing back on upon a ctrl+c during read -s
  trap "cursor_blink_on; stty echo; printf '\n'; exit" 2
  cursor_blink_off
  while [[ "$O" != " " ]] && [[ $cur != exit ]]; do case $i in
        0) S=M0;SC;if [[ $cur == enter ]];then RUN lubuntu; fi;;
        1) S=M1;SC;if [[ $cur == enter ]];then RUN kubuntu; fi;;
        2) S=M2;SC;if [[ $cur == enter ]];then RUN ubuntu; fi;;
        3) S=M3;SC;if [[ $cur == enter ]];then RUN ubuntu-budgie; fi;;
        4) S=M4;SC;if [[ $cur == enter ]];then RUN ubuntu-kylin; fi;;
        5) S=M5;SC;if [[ $cur == enter ]];then RUN ubuntu-mate; fi;;
        6) S=M6;SC;if [[ $cur == enter ]];then RUN ubuntu-studio; fi;;
        7) S=M7;SC;if [[ $cur == enter ]];then RUN xubuntu; fi;;
        8) S=M8;SC;if [[ $cur == enter ]];then R;exit 0;fi;;
 esac;POS;done

 CLEAR
 cursor_blink_on

It was fun.