#!/bin/sh

## send windows to desktop background ##

. $HOME/.config/wms/wms_var 

FLAG=$1
FW=$(pfw)             # focused window
RID=$(lsw -r)         # root widnow id
RW=$(wattr w $RID)    # root width
RH=$(wattr h $RID)    # root height
SW=$((RW - 2*BW))     # usable screen width
SH=$((RH - 2*BW))     # usable screen height

usage() {
    echo "usage:
wms_backgroundize.sh [ -b, -r ]
-b) backgroundize focused window
-r) open menu and choose the window/s to restore"
}

# send windows to background
background() {
    if [ ! "$(wattr o $FW && echo 1)" ]; then    # if override is not set
	wtp 0 0 $SW $SH $FW
	ignw -s $FW    # ignore focused window
	chwb -c 000000 $FW    # change border color to ignore

    else
	ignw -r $FW    # unignore focused window
	chwb -c $FG $FW    # change border color to active
    fi
}

# restore windows from background
restore() {
    if [ -n "$(lsw -o)" ]; then
	otarget=$(for wid in $(lsw -o); do    # override target
		      printf '%s\n' "$wid | $(atomx WM_CLASS $wid) | $(wname $wid)"
		  done | cut -c 1-100 | $XMENU | cut -d ' ' -f 1)
	ignw -r $otarget    # unignore otarget
    fi
}

case $FLAG in
    -b)
	background
	;;
    -r)
	restore
	 ;;
    *)
	usage
	;;
esac