wallpaperswide.sh

#!/bin/bash
url=http://wallpaperswide.com
category=forests-desktop-wallpapers
res=1920x1080
crop=25
age=1
####################################################################################################
loc=/home/user/Pictures/Wallpapers
list=$loc/online_wallpaperswide.txt
 pos=$loc/online_wallpaperswide.last
ldir=$loc/forests
picf=$loc/wallpaper.jpg
chkf=$loc/wallpaper.chk

####################################################################################################
[[ ! -d $loc  ]] && echo "loc directory not existing: $loc" && exit 1
[[ ! -f $list ]] && echo "list file does not exist: $list" && exit 1

width=$(( ${res%x*} - $crop ))
height=$(( ${res#*x} - $crop ))

####################################################################################################
if [ "$1" == "-gl" ]; then

    pages=$( lynx -listonly -dump -nonumbers -image_links "$url/$category/page/1" | grep page | sort | tail -1)
    last=${pages##*/}

    [ -f $list ] && rm $list

    count=0

    # get list of pages with images
    for (( i = 1; i <= $last ; i++ )); do

        echo -ne "\rPage $i of $last ($count)"

        for j in $( lynx -listonly -dump -nonumbers -image_links "$url/$category/page/$i" | grep jpg ); do

            title=${j##*/}
            title="${title%%t1*}wallpapers.html"

            file=$(lynx -listonly -dump -nonumbers -image_links "$url/$title" | grep jpg | grep $res | head -1)

            if [ -v file ]; then
                [[ "$file" != "" ]] && echo $file >> $list && (( count++ ))
            fi
        done
    done

    exit 0
fi

####################################################################################################
if [ "$1" == "-l" ];then
    [[ -f $list ]] && cat $list
    exit 0
fi

####################################################################################################
if [ "$1" == "-gi" ]; then

    for i in $list; do
        echo "Downloading \"$(basename $i)\""
        wget -q $i
    done

    for i in *.jpg; do
        echo "Converting \"$i\""
        convert $i -crop ${width}x${height}+0+0 -resize ${res}^ -gravity center -extent ${res}^ $i
    done
    exit 0
fi

####################################################################################################
background_change() {
    [ -f $pos ] || echo 0 > $pos
    last=$(cat $pos)
    max=$(cat $list | wc -l)
    [ $last = $max ] && next=0 || next=$(( $last + 1 ))
    url=$(cat "$list" | head -n +$next | tail -1)
    echo $next > $pos

    wget -q -O "$picf" "$url"
    convert $picf -crop ${width}x${height}+0+0 -resize ${res}^ -gravity center -extent ${res}^ $picf
    hsetroot -full "$picf"
    gsettings set org.mate.screensaver picture-filename $picf
}

####################################################################################################
if [[ "$1" == "-b" ]]; then
    [[ ! -f $chkf ]] && touch $chkf
     ptime=$( stat $picf --printf "%Y" )
    ptimeh=$( stat $picf --printf "%y" )
    ctime=$( stat $chkf --printf "%Y" )
    [[ $ptime -eq $ctime ]] && exit 0
    [[ -f $picf ]] && hsetroot -full $picf || exit 1
    tstamp="${ptimeh:0:4}${ptimeh:5:2}${ptimeh:8:2}${ptimeh:11:2}${ptimeh:14:2}.${ptimeh:17:2}"
    touch -t $tstamp $chkf
    exit 0
fi

####################################################################################################
if [[ "$1" == "-bf" ]]; then
    [[ -f $picf ]] && hsetroot -full $picf || exit 1
    exit 0
fi

####################################################################################################
if [[ "$1" == "-n" ]]; then
    background_change
    exit 0
fi

####################################################################################################
if [[ "$1" == "-c" ]]; then
    if [[ $(( $(/bin/date +%s) - $(stat "$pos" --printf "%Y") )) -ge $(( $age * 3540 )) ]]; then
        background_change
    fi
    exit 0
fi

####################################################################################################
if [[ "$1" == "-r" ]]; then
    [ -v pos ] && echo 0 > $pos
    exit 0
fi

echo "$(basename $0) <parameter>"
echo "-gi - get wallpaper images"
echo "-gl - get list of wallpapers"
echo "-l  - display list of URL's to wallpapers"
echo "-n  - download next wallpaper and set it as background"
echo "-c  - change the wallpaper once a day"
echo "-r  - reset position"
echo "-b  - use downloaded wallpaper on background"
echo "-bf - use downloaded wallpaper on background (force)"