110 lines
3.7 KiB
Lua
110 lines
3.7 KiB
Lua
-- battery widget type for GNU/Linux
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-- Copyright (C) 2010 Adrian C. <anrxc@sysphere.org>
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-- Copyright (C) 2013 NormalRa <normalrawr@gmail.com>
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-- Copyright (C) 2017 David Udelson <dru5@cornell.edu>
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-- Copyright (C) 2017 Roberto <empijei@users.noreply.github.com>
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-- Copyright (C) 2017 mutlusun <mutlusun@github.com>
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local tonumber = tonumber
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local string = { format = string.format }
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local math = {
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min = math.min,
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floor = math.floor
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}
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local helpers = require"vicious.helpers"
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-- }}}
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-- {{{ Battery widget type
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return helpers.setcall(function (format, warg)
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if not warg then return end
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local battery = helpers.pathtotable("/sys/class/power_supply/"..warg)
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local battery_state = {
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["Full\n"] = "↯",
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["Unknown\n"] = "⌁",
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["Charged\n"] = "↯",
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["Charging\n"] = "+",
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["Discharging\n"] = "-"
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}
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-- Get current power usage in watt
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local curpower = "N/A"
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if battery.power_now then
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curpower = string.format("%.2f", tonumber(battery.power_now) /1000000)
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end
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-- Check if the battery is present
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if battery.present ~= "1\n" then
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return {battery_state["Unknown\n"], 0, "N/A", 0, curpower}
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end
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-- Get state information
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local state = battery_state[battery.status] or battery_state["Unknown\n"]
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-- Get capacity information
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local remaining, capacity, capacity_design
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if battery.charge_now then
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remaining, capacity = battery.charge_now, battery.charge_full
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capacity_design = battery.charge_full_design or capacity
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elseif battery.energy_now then
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remaining, capacity = battery.energy_now, battery.energy_full
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capacity_design = battery.energy_full_design or capacity
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else
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return {battery_state["Unknown\n"], 0, "N/A", 0, curpower}
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end
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-- Calculate capacity and wear percentage (but work around broken BAT/ACPI implementations)
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local percent = math.min(math.floor(remaining / capacity * 100), 100)
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local wear = math.floor(100 - capacity / capacity_design * 100)
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-- Get charge information
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local rate
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if battery.current_now then
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rate = tonumber(battery.current_now)
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elseif battery.power_now then
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rate = tonumber(battery.power_now)
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else
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return {state, percent, "N/A", wear, curpower}
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end
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-- Calculate remaining (charging or discharging) time
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local time = "N/A"
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if rate ~= nil and rate ~= 0 then
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local timeleft
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if state == "+" then
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timeleft = (tonumber(capacity)-tonumber(remaining)) / tonumber(rate)
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elseif state == "-" then
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timeleft = tonumber(remaining) / tonumber(rate)
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else
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return {state, percent, time, wear, curpower}
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end
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-- Calculate time
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local hoursleft = math.floor(timeleft)
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local minutesleft = math.floor((timeleft - hoursleft) * 60 )
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time = string.format("%02d:%02d", hoursleft, minutesleft)
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end
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return {state, percent, time, wear, curpower}
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end)
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-- }}}
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