bin/change_wallpaper.sh

   1 #! /bin/bash
   2
   3 PID=$$
   4 PIDFILE=${PIDFILE:-/tmp/wallpaper.pid}
   5 WAIT_CYCLE="5m"
   6
   7 trap "rm -f $PIDFILE" SIGTERM
   8
   9 WP_SETTER="/usr/bin/feh"
  10 QARMA="/usr/bin/qarma"
  11
  12 function set_wp() {
  13         NEW_WP=$1
  14         $WP_SETTER --bg-fill $NEW_WP
  15 }
  16
  17 # set background function (requires input)
  18 function wpapers() {
  19         if [[ -f $1 ]]; then
  20                 # We have a single file as input
  21                 set_wp $1
  22                 exit 0
  23         elif [[ -d $1 ]]; then
  24                 # directory as input
  25                 while true; do
  26                         BGIMG=$(find $1 -type f -print | shuf -n1)
  27                         set_wp ${BGIMG}
  28                         sleep $WAIT_CYCLE
  29                 done
  30         fi
  31 }
  32
  33 function file_or_dir() {
  34         if [[ -f /tmp/choice ]]; then
  35                 rm /tmp/choice
  36         fi
  37
  38         FOD=$($QARMA --list --text="single image or directory?" --hide-header "file" "directory" > /tmp/choice)
  39         case $? in
  40                 0 )
  41                         file_chooser $(cat /tmp/choice)
  42                         ;;
  43                 1 )
  44                         $QARMA --info --title="Exiting!" --text="No wallpaper was changed."
  45                         ;;
  46                 -1 )
  47                         $QARMA --error --title="Ooops!!" --text="Something unexpected happened."
  48                         ;;
  49         esac
  50 }
  51
  52 function file_chooser() {
  53         case $1 in
  54                 "file" )
  55                         FILE="$($QARMA --file-selection --title='Choose your Wallpaper')"
  56                         case $? in
  57                                 0 )
  58                                         wpapers $FILE
  59                                         ;;
  60                                 1 )
  61                                         $QARMA --info --title="Exiting!" --text="No wallpaper was changed."
  62                                         ;;
  63                                 -1 )
  64                                         $QARMA --error --title="Ooops!!" --text="Something unexpected happened."
  65                         esac
  66                         ;;
  67                 "directory" )
  68                         FILE="$($QARMA --file-selection --directory --title='Choose your Wallpaper directory')"
  69                         case $? in
  70                                 0 )
  71                                         wpapers $FILE
  72                                         ;;
  73                                 1 )
  74                                         $QARMA --info --title="Exiting!" --text="No wallpaper was changed."
  75                                         ;;
  76                                 -1 )
  77                                         $QARMA --error --title="Ooops!!" --text="Something unexpected happened."
  78                         esac
  79                         ;;
  80                 * )
  81                         $QARMA --error --title="Ooops!!" --text="Something unexpected happened."
  82                         ;;
  83         esac
  84 }
  85
  86 function run() {
  87         if [[ $(basename $0) == "wallpaper.sh" ]]; then
  88                 # we were called as wallpaper.sh, so simple wallpaper setter without qarma interaction
  89                 wpapers $1
  90         elif [[ $(basename $0) == "change_wallpaper.sh" ]]; then
  91                 # we use qarma to set the wallpaper
  92                 $QARMA --question --title="Change Wallpaper" --text="Do you want to change the wallpaper?"
  93                 case $? in
  94                         0 )
  95                                 file_or_dir
  96                                 ;;
  97                         1 )
  98                                 $QARMA --info --title="Exiting!" --text="No wallpaper was changed."
  99                                 ;;
 100                         -1 )
 101                                 $QARMA --error --title="Ooops!!" --text="Something unexpected happened."
 102                 esac
 103         fi
 104 }
 105
 106 if [[ -r $PIDFILE ]]; then
 107         # PIDFILE exists, so I guess there's already an instance running
 108         # let's kill it and run again
 109         kill -s 15 $(cat $PIDFILE) > /dev/null 2>&1
 110         # should already be deleted by trap, but just to be sure
 111         rm $PIDFILE
 112 fi
 113
 114 # create PIDFILE
 115 echo $PID > $PIDFILE
 116
 117 run