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-- battery widget type for FreeBSD
-- Copyright (C) 2017-2019 mutlusun <mutlusun@github.com>
-- Copyright (C) 2019 Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
--
-- This file is part of Vicious.
--
-- Vicious is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as
-- published by the Free Software Foundation, either version 2 of the
-- License, or (at your option) any later version.
--
-- Vicious is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
-- {{{ Grab environment
local tonumber = tonumber
local math = { floor = math.floor }
local string = {
gmatch = string.gmatch,
format = string.format
}
local helpers = require("vicious.helpers")
local spawn = require("vicious.spawn")
-- }}}
-- Battery: provides battery level of requested battery
-- vicious.widgets.battery_freebsd
local bat_freebsd = {}
-- {{{ Battery widget type
local function parse(stdout, stderr, exitreason, exitcode)
local bat_info = {}
for line in string.gmatch(stdout, "[^\n]+") do
for key,value in string.gmatch(line, "(.+):%s+(.+)") do
bat_info[key] = value
end
end
-- current state
-- see: https://github.com/freebsd/freebsd/blob/master/usr.sbin/acpi/acpiconf/acpiconf.c
local battery_state = {
["high"] = "↯",
["charging"] = "+",
["critical charging"] = "+",
["discharging"] = "-",
["critical discharging"] = "!",
["critical"] = "!",
}
local state = battery_state[bat_info["State"]] or "N/A"
-- battery capacity in percent
local percent = tonumber(bat_info["Remaining capacity"]:match"[%d]+")
-- use remaining (charging or discharging) time calculated by acpiconf
local time = bat_info["Remaining time"]
if time == "unknown" then
time = "∞"
end
-- calculate wear level from (last full / design) capacity
local wear = "N/A"
if bat_info["Last full capacity"] and bat_info["Design capacity"] then
local l_full = tonumber(bat_info["Last full capacity"]:match"[%d]+")
local design = tonumber(bat_info["Design capacity"]:match"[%d]+")
wear = math.floor(l_full / design * 100)
end
-- dis-/charging rate as presented by battery
local rate = bat_info["Present rate"]:match"([%d]+)%smW"
rate = string.format("%2.1f", tonumber(rate / 1000))
-- returns
-- * state (high "↯", discharging "-", charging "+", N/A "⌁" }
-- * remaining_capacity (percent)
-- * remaining_time, by battery
-- * wear level (percent)
-- * present_rate (mW)
return {state, percent, time, wear, rate}
end
function bat_freebsd.async(format, warg, callback)
local battery = warg or "batt"
spawn.easy_async("acpiconf -i " .. helpers.shellquote(battery),
function (...) callback(parse(...)) end)
end
-- }}}
return helpers.setasyncall(bat_freebsd)
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