awesome/battery.lua

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2018-11-28 14:49:10 +01:00
-- This function returns a formatted string with the current battery status. It
-- can be used to populate a text widget in the awesome window manager. Based
-- on the "Gigamo Battery Widget" found in the wiki at awesome.naquadah.org
local wibox = require("wibox")
local naughty = require("naughty")
local beautiful = require("beautiful")
local awful = require('awful')
local su = require('su')
local previous_percent = 0
function batteryInfo(callback)
awful.spawn.easy_async('acpi', function(stdout)
-- Consider only the first line
local line = su.split(stdout, '\n')[1]
local split = su.split(line, ':')
-- Extract the percentage from the string
local percent = tonumber(su.split(split[2],',')[2]:sub(1, -2))
-- callback(percent, isCharging)
callback(tonumber(percent), not string.find(line, 'Discharging'))
end)
end
function update_battery()
batteryInfo(function(percent, isCharging)
local color
local symbol
if percent < 15 then
color="red"
elseif percent < 30 then
color="orange"
elseif percent > 90 then
color="green"
else
color="white"
end
if isCharging then
color = 'green'
symbol = ''
else
symbol = '%'
end
if previous_percent >= 15 and percent < 15 then
naughty.notify({
title = "Low battery...",
text = "Battery level is lower than 15% !",
fg="#000000",
bg="#ff0000",
timeout=5
})
end
battery_widget:set_markup('<span color="' .. color .. '">' .. percent .. ' ' .. symbol .. '</span>')
previous_percent = percent
end)
end
battery_widget = wibox.widget.textbox()
battery_widget.timer = timer({timeout=5})
battery_widget.timer:connect_signal("timeout", update_battery)
battery_widget.timer:start()
update_battery()