vincentbernat.i3wm-configur.../lib/brightness.lua

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Lua
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-- Handle brightness (with xbacklight)
local awful = require("awful")
local naughty = require("naughty")
local tonumber = tonumber
local string = string
local os = os
module("vbe/brightness")
local nid = nil
local function change(what)
-- We don't really change the brightness, just report the change...
local out = awful.util.pread("xbacklight -get")
if not out then return end
out = tonumber(out)
local icon = "/usr/share/icons/HighContrast/32x32/status/display-brightness.png"
nid = naughty.notify({ text = string.format("%3d %%", out),
icon = icon,
font = "Free Sans Bold 24",
replaces_id = nid }).id
end
function increase()
change("+ 5")
end
function decrease()
change("- 5")
end