#!/bin/bash

# This script is run by Variety when a new wallpaper is set.
# The first passed parameter (accessed with $1) is the absolute path to the wallpaper.
# The second passed parameter ($2) is "auto" when the wallpaper is changed automatically (i.e. regular change)
# and "manual" otherwise - e.g. when the user clicks Previous, Next or Trash.
# You can use bash, python or whatever suits you for the script.
# Here you can put custom commands for setting the wallpaper on your specifc desktop environment
# or run commands like notify-send to notify you of the change, or you can
# run commands that would theme your browser, login screen or whatever you desire.

# KDE - User will have to manually choose ~/.config/variety/wallpaper-kde.jpg as a wallpaper.
# Afterwards, with the command below, Variety will just overwrite the file when changing the wallpaper
# and KDE will refresh it
if [ "`env | grep KDE_FULL_SESSION | tail -c +18`" == "true" ]; then
    cp "$1" ~/.config/variety/wallpaper-kde.jpg
    exit 0
fi

# Gnome 3, Unity
cp "$1" $HOME/Pictures/variety-wallpaper.jpg
gsettings set org.gnome.desktop.background picture-uri "file://$HOME/Pictures/variety-wallpaper.jpg" 2> /dev/null
if [ "`gsettings get org.gnome.desktop.background picture-options`" == "'none'" ]; then
    gsettings set org.gnome.desktop.background picture-options 'zoom'
fi

# XFCE
xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitor0/image-path -s "" 2> /dev/null
xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitor0/image-path -s "$1" 2> /dev/null

# LXDE/PCmanFM
pcmanfm --set-wallpaper "$1" 2> /dev/null

# Feh - commented, as it may cause problems with Nautilus, (see bug https://bugs.launchpad.net/variety/+bug/1047083)
# feh --bg-scale "$1" 2> /dev/null

# Mate
mateconftool-2 -t string -s /desktop/mate/background/picture_filename "$1" 2> /dev/null

# Gnome 2
gconftool-2 -t string -s /desktop/gnome/background/picture_filename "$1" 2> /dev/null

# Show a notification on wallpaper change (only when the change is automatic)
# name=$(echo "$1" | sed 's/\//\n/g'| tail -n 1)
# if [ "$2" == "auto" ]; then notify-send --icon "$1" "Wallpaper changed" "$name" ; fi