All patches and comments are welcome. Please squash your changes to logical
commits before using git-format-patch and git-send-email to
patches@git.madduck.net.
If you'd read over the Git project's submission guidelines and adhered to them,
I'd be especially grateful.
4 Licensed under GNU General Public License v2
5 * (c) 2013, Luke Bonham
6 * (c) 2010-2012, Peter Hofmann
10 local newtimer = require("lain.helpers").newtimer
11 local first_line = require("lain.helpers").first_line
13 local naughty = require("naughty")
14 local wibox = require("wibox")
16 local math = { floor = math.floor }
17 local string = { format = string.format }
18 local tonumber = tonumber
20 local setmetatable = setmetatable
26 local function worker(args)
27 local args = args or {}
28 local timeout = args.timeout or 30
29 local battery = args.battery or "BAT0"
30 local notify = args.notify or true
31 local settings = args.settings or function() end
33 bat.widget = wibox.widget.textbox('')
37 status = "Not present",
43 local bstr = "/sys/class/power_supply/" .. battery
45 local present = first_line(bstr .. "/present")
49 local rate = first_line(bstr .. "/power_now") or
50 first_line(bstr .. "/current_now")
52 local ratev = first_line(bstr .. "/voltage_now")
54 local rem = first_line(bstr .. "/energy_now") or
55 first_line(bstr .. "/charge_now")
57 local tot = first_line(bstr .. "/energy_full") or
58 first_line(bstr .. "/charge_full")
60 bat_now.status = first_line(bstr .. "/status") or "N/A"
63 ratev = tonumber(ratev)
68 if bat_now.status == "Charging"
70 time_rat = (tot - rem) / rate
71 elseif bat_now.status == "Discharging"
76 local hrs = math.floor(time_rat)
77 if hrs < 0 then hrs = 0 elseif hrs > 23 then hrs = 23 end
79 local min = math.floor((time_rat - hrs) * 60)
80 if min < 0 then min = 0 elseif min > 59 then min = 59 end
82 bat_now.time = string.format("%02d:%02d", hrs, min)
84 local perc = (rem / tot) * 100
86 bat_now.perc = string.format("%d", perc)
87 elseif perc > 100 then
93 if rate ~= nil and ratev ~= nil then
94 bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
99 -- notifications for low and critical states
100 if bat_now.status == "Discharging" and notify
102 if tonumber(bat_now.perc) <= 5
104 bat.id = naughty.notify({
105 text = "shutdown imminent",
106 title = "battery nearly exhausted",
107 position = "top_right",
114 elseif tonumber(bat_now.perc) <= 15
116 bat.id = naughty.notify({
117 text = "plug the cable",
118 title = "battery low",
119 position = "top_right",
134 newtimer("bat", timeout, update)
139 return setmetatable(bat, { __call = function(_, ...) return worker(...) end })