scripta

   1 #!/bin/bash
   2 # Copyright 2009, Roberto Previdi
   3 # GPL v2 or later
   4
   5 ZENITY="zenity --width=400 --height=400"
   6 MSGBOX="$ZENITY --info --text "
   7 ERROR="$ZENITY --error --text "
   8 ENTRY="$ZENITY --entry --text "
   9 EDITFILE="$ZENITY --text-info --editable --filename "
  10 TMP="/tmp"
  11 ROOT_MENU_DIR="menu"
  12 SEP="==================="
  13 TITLE="scripta"
  14
  15 # arg1: relative/absolute path to switch to
  16 function change_dir()
  17 {
  18         echo "change_dir($1)"
  19         cd $1
  20         MENU_DIR=$(pwd)
  21 }
  22
  23 function new_menu()
  24 {
  25         NAME="$($ENTRY "enter the name of the menu")"
  26         if [ $? -gt 0 ]; then
  27                 $MSGBOX operation cancelled
  28         else
  29                 mkdir "$NAME"
  30         fi
  31 }
  32
  33 function new_script()
  34 {
  35         NAME="$($ENTRY "enter the name of the script")"
  36         if [ $? -gt 0 ]; then
  37                 $MSGBOX operation cancelled
  38         else
  39                 touch "$NAME"
  40 #       --->    #
  41                 cat >> "$NAME" << _END
  42 function run()
  43 {
  44         $MSGBOX "edit me!"
  45 }
  46 _END
  47 #       --->    #
  48         fi
  49 }
  50
  51 #arg1: menu to edit
  52 function edit_menu()
  53 {
  54         ACTION=$($ZENITY --column "Select action" --list rename remove)
  55         if [ $? -gt 0 ]; then
  56                 $MSGBOX operation cancelled
  57         elif [ "$ACTION" == "remove" ]; then
  58                 PASSWORD=$($ZENITY --entry --text "enter \"DELETE this MENU\"" --entry-text "pleeease, don't kill meeee")
  59                 if [ $? -gt 0 -o $PASSWORD != "DELETE this MENU"]; then
  60                         $MSGBOX operation cancelled
  61                 else
  62                         rm -rf $1
  63                 fi
  64         elif [ "$ACTION" == "rename" ]; then
  65                 NEW_NAME=$($ENTRY "enter new name" --entry-text $1)
  66                 if [ $1 -gt 0 ]; then
  67                         $MSGBOX operation cancelled
  68                 else
  69                         mv $1 $NEW_NAME
  70                 fi
  71         fi
  72 }
  73
  74 #arg1: file to edit
  75 function edit_file()
  76 {
  77         ACTION=$($ZENITY --column "Select action" --list edit rename remove)
  78         if [ $? -gt 0 ]; then
  79                 $MSGBOX operation cancelled
  80         elif [ "$ACTION" == "edit" ]; then
  81                 $EDITFILE $1 > $1.tmp
  82                 mv -f $1.tmp $1
  83         elif [ "$ACTION" == "remove" ]; then
  84                 PASSWORD="$($ZENITY --entry --text "enter \"DELETE this FILE\"" --entry-text "noooo, save meeee")"
  85                 if [ $? -gt 0 -o $PASSWORD != "DELETE this FILE"]; then
  86                         $MSGBOX operation cancelled
  87                 else
  88                         rm -rf $1
  89                 fi
  90
  91         elif [ "$ACTION" == "rename" ]; then
  92                 NEW_NAME=$($ZENITY --entry --text "enter new name" --entry-text $1)
  93                 if [ $? -gt 0 ]; then
  94                         $MSGBOX operation cancelled
  95                 else
  96                         mv $1 $NEW_NAME
  97                 fi
  98         fi
  99 }
 100
 101 #edit the menus in the current path
 102 function edit_fn()
 103 {
 104         while [ 1 ]; do
 105                 TITLE="scripta - EDIT"
 106                 menu_items --desc-prefix "edit--" back new_submenu new_script quit
 107
 108                 if [ "$SELECTED" == $SEP ]; then
 109                         do_nothing
 110                 elif [ "$SELECTED" == "back" ]; then
 111                         return 0
 112                 elif [ "$SELECTED" == "new_submenu" ]; then
 113                         new_menu
 114                 elif [ "$SELECTED" == "new_script" ]; then
 115                         new_script
 116                 elif [ -d $SELECTED ]; then
 117                         edit_menu $SELECTED
 118                 elif [ -f $SELECTED ]; then
 119                         edit_file $SELECTED
 120                 fi
 121         done
 122
 123 }
 124
 125 # arg1: bash script which defines a "run" function
 126 function execute()
 127 {
 128         function run()
 129         {
 130                 $ERROR "Error, the file doesn't define a run() function"
 131         }
 132
 133         . $1
 134
 135         run
 136
 137 }
 138
 139 function do_nothing()
 140 {
 141         DUMMY=$DUMMY
 142 }
 143
 144 # arg1: return value of zenity
 145 # arg2: selected command
 146 function parse_menu_commons()
 147 {
 148         if [ $1 -gt 0 ]; then
 149                 echo exiting with status $1
 150                 exit $1
 151         fi
 152
 153         if [ "$2" == "quit" ]; then
 154                 exit 0
 155         fi
 156 }
 157
 158 #arg1: prefix for the description part
 159 function get_items()
 160 {
 161         SUBMENUS=$(
 162                         find -maxdepth 1 -type d |
 163                                 sort |
 164                                 sed 's/.*\/\([^/]*\)/\1/' |
 165                                 sed 's/[.]//' |
 166                                 sed -e :a -e '$ P; /$/N; s/\n/ /; ta;'|
 167                                 head -n 1 |
 168                                 sed 's/$/ /' |
 169                                 sed "s/\([a-z]\+\) /\1 $1\1... /g"
 170                 )
 171         MENU_ITEMS=$(
 172                         find -maxdepth 1 -type f |
 173                                 sort |
 174                                 sed "s/.*\/\([^/]*\)/\1 $1\1/" |
 175                                 sed -e :a -e '$ P; /$/N; s/\n/ /; ta;'|
 176                                 head -n 1)
 177 }
 178
 179 # arg1-n: additional menu entries
 180 function menu_items()
 181 {
 182         cd $MENU_DIR
 183         ADDITIONAL=""
 184         DESC_PREFIX=""
 185         while [ $# -gt 0 ]; do
 186                 if [ "$1" == "--desc-prefix" ]; then
 187                         shift
 188                         DESC_PREFIX="$1"
 189                 else
 190                         ADDITIONAL="$ADDITIONAL $1 $1"
 191                 fi
 192                 shift
 193         done
 194
 195         get_items "$DESC_PREFIX"
 196
 197         SELECTED=$($ZENITY --title "$TITLE" --hide-column 1  --column Command --column Operation --list $SUBMENUS $MENU_ITEMS $SEP $SEP $ADDITIONAL)
 198         parse_menu_commons $? "$SELECTED"
 199 }
 200
 201
 202 change_dir $ROOT_MENU_DIR
 203 while [ 1 ]; do
 204         TITLE="scripta"
 205         menu_items back edit quit
 206
 207         if [ "$SELECTED" == $SEP ]; then
 208                 do_nothing
 209         elif [ "$SELECTED" == "edit" ]; then
 210                 edit_fn
 211         elif [ "$SELECTED" == "back" ]; then
 212                 change_dir ..
 213         elif [ -d $SELECTED ]; then
 214                 change_dir $SELECTED
 215         elif [ -f $SELECTED ]; then
 216                 execute $SELECTED
 217         fi
 218 done