mxfb-separate-backgrounds

#!/bin/bash

#Script to configure separate backgrounds for each Fluxbox Workspace
#Written by user PPC and modified by MX Devs, September 2020
#Released under GPLv3

TEXTDOMAINDIR=/usr/share/locale 
export TEXTDOMAIN="mxfb-separate-backgrounds"

#Confirmation Window:
MESSAGE1=$"  This app allows you to configure separate backgrounds for each Workspace  </b>"
HINT1=$" Selection windows will pop up for each Workspace."
HINT2=$" Type \"mxfb\" to jump to the MXFB backgrounds."
HINT3=$" Select the background you want and click OK."
NOTE1=$" NOTE 1: Background changes using the menu won't be permanent."
NOTE2=$" NOTE 2: Re-run this script when you add new workspaces!"
NOTE3=$" NOTE 3: Disable nitrogen in startup file if using that app for image setting"
TITLE=$"MXFB -- separate workspace wallpapers"
BUTTON1=$"Cancel"
BUTTON2=$"Disable separate backgrounds"
BUTTON3=$"Setup separate backgrounds"
MESSAGE2=$"Separate backgrounds have been disabled."
TITLE2=$"Wallpaper selector"
TITLE3=$"Warning"
WARNING=$"There is no wallpaper image selected for Workspace $n... Will substitute 'mx_blue.jpg' to avoid any errors."

ICON=/usr/share/icons/mxflux.png

yad --center --window-icon=$ICON --fix-window --text="
<b>$MESSAGE1\n

<b>--$HINT1
--$HINT2 
-- $HINT3 \n

$NOTE1
$NOTE2
$NOTE3</b>" \
--title=$"$TITLE" --window-icon=$ICON --text-align=center \
--button="<b>$BUTTON1</b>":1 \
--button="<b>$BUTTON2</b>":3 \
--button="<b>$BUTTON3</b>":2 \ 

foo=$?

[[ $foo -eq 1 ]] && exit 0

if [[ $foo -eq 3 ]]; then
#sed -i 's/ChangeWorkspace/#ChangeWorkspace/' ~/.fluxbox/keys 
awk '!/ChangeWorkspace/'  ~/.fluxbox/keys > temp && mv temp  ~/.fluxbox/keys
yad  --title=$"$TITLE" --window-icon=$ICON  --center --message --text="$MESSAGE2" --fixed --no-buttons --timeout=5 
fluxbox-remote restart 

exit 0

fi

# set idesk to no rotation to avoid conflict
sed -i -r 's/Background.Delay:[[:space:]]+1/Background.Delay: 0/' ~/.ideskrc


#Check if the keys file has already been edited to allow costume wallpapers for each workspace:
##check if the keys file has a ChangeWorkspace entry
expression_to_find="ChangeWorkspace"
x=$(grep $expression_to_find ~/.fluxbox/keys)

if [ -z "$x" ]
then
      echo "\$x is empty- the keys file has not been edited, editing it to allow different wallpaper for each workspace"

	  #Backup the keys config file:
      cp ~/.fluxbox/keys ~/.restore/fluxbox/keys_BAK

      #Append the needed changes to the keys config file (the "\" is needed not to replace the variables:
      echo "#This executes fbsetbg every time workspace is changed to load <workspace number>.jpg from ~/.fluxbox/backgrounds/numbered/ 
ChangeWorkspace :Exec fbsetbg ~/.fluxbox/backgrounds/numbered/\$(xprop -root _NET_CURRENT_DESKTOP |awk '{print \$3+1}').jpg" >> ~/.fluxbox/keys 

      else
        echo "\$x is NOT empty- the keys file seems to already allow custom wallpapers for each workspace."
     ###     echo Do you want to set up a single wallpaper for all Workspaces?
     ## If no, edit the keys file, removing the line that sets the ChangeWorkspace...
      
fi

#Create the needed folder
mkdir -p  ~/.fluxbox/backgrounds/numbered/

#Check how many Workspaces Fluxbox currently has:
number_of_workspaces=$(xdotool get_num_desktops)

#Remove existing numbered wallpapers to avoid failure when wallpaper is symlinked to /usr/share/backgrounds
rm ~/.fluxbox/backgrounds/numbered/*.jpg

#Loop for as many workspaces as there is, selecting one wallpaper for each workspace
for ((n=1;n<=$number_of_workspaces;n++))
do
 cd /usr/share/backgrounds/
# select wallpaper:
 wallpaper=$(yad --title="$TITLE2" --center --window-icon=$ICON --file-selection --text="
 WORKSPACE $n
 " --text-align=center)
 # copy and rename wallpaper to match the current Workspace number:
 cp $wallpaper  ~/.fluxbox/backgrounds/numbered/$n.jpg
 
 if [ ! "$?" = "0" ]; then
    echo User canceled the script
    exit 0
fi
 
  #Check if wallpaper for current Workspace exists, if not, use a default one (mx_blue.jpg), to avoid errors. NOTE: if the users does not select any wallpaper at this time but a wallpaper for that workspace already existed, that previous selection will be maintained
  FILE=$n.jpg
 cd ~/.fluxbox/backgrounds/numbered/
 if [ ! -f "$FILE" ]
   then
    echo "File $FILE does not exist, using a default one- mx_blue.jpg"
    yad --center --window-icon=$ICON--title="$TITLE3" --text="$WARNING"
    cp  /usr/share/backgrounds/mx_blue.jpg ~/.fluxbox/backgrounds/numbered/$n.jpg
 fi

done
 echo Finished setting up workspace wallpapers, restarting fluxbox

#Implement the changes: 
fluxbox-remote restart
 echo fluxbox restarted, script finished