-- Standard awesome library
local gears = require("gears")
local beautiful = require("beautiful")

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

function set_wallpaper(s)
  -- Wallpaper
  if beautiful.wallpaper then
    local wallpaper = beautiful.wallpaper
    -- If wallpaper is a function, call it with the screen
    if type(wallpaper) == "function" then
      wallpaper = wallpaper(s)
    end
    gears.wallpaper.maximized(wallpaper, s, false)
  end
end

-- Re-set wallpaper when a screen's geometry changes (e.g. different resolution)
screen.connect_signal("property::geometry", set_wallpaper)