mirror of https://github.com/lcpz/lain.git
148 lines
4.6 KiB
Lua
148 lines
4.6 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2013, Luke Bonham
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* (c) 2010-2012, Peter Hofmann
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--]]
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local markup = require("lain.util.markup")
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local first_line = require("lain.helpers").first_line
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local beautiful = require("beautiful")
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local naughty = require("naughty")
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local wibox = require("wibox")
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local math = { floor = math.floor }
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local string = { format = string.format }
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local setmetatable = setmetatable
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-- Battery infos
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-- lain.widgets.bat
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local bat = {
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status = "not present",
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perc = "N/A",
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time = "N/A",
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}
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function worker(args)
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local args = args or {}
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local battery = args.battery or "BAT0"
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local show_all = args.show_all or false
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local refresh_timeout = args.refresh_timeout or 30
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local header = args.header or " Bat "
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local header_color = args.header_color or beautiful.fg_normal or "#FFFFFF"
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local color = args.color or beautiful.fg_focus or "#FFFFFF"
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local shadow = args.shadow or false
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local mybattery = wibox.widget.textbox()
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local mybatteryupdate = function()
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local present = first_line("/sys/class/power_supply/"
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.. battery
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.. "/present")
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if present == "1"
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then
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local rate = first_line("/sys/class/power_supply/"
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.. battery ..
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"/power_now")
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local ratev = first_line("/sys/class/power_supply/"
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.. battery ..
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"/voltage_now")
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local rem = first_line("/sys/class/power_supply/"
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.. battery ..
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"/energy_now")
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local tot = first_line("/sys/class/power_supply/"
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.. battery ..
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"/energy_full")
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bat.status = first_line("/sys/class/power_supply/"
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.. battery ..
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"/status")
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local time_rat = 0
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if bat.status == "Charging"
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then
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status = "(+)"
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time_rat = (tot - rem) / rate
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elseif bat.status == "Discharging"
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then
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status = "(-)"
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time_rat = rem / rate
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else
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status = "(.)"
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end
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local hrs = math.floor(time_rat)
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local min = (time_rat - hrs) * 60
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bat.time = string.format("%02d:%02d", hrs, min)
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local amount = (rem / tot) * 100
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if shadow
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then
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bat.perc = string.format("%d", amount)
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else
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bat.perc = string.format("%d%%", amount)
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end
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local watt = string.format("%.2fW", (rate * ratev) / 1e12)
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if show_all
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then
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text = watt .. " " .. bat.perc .. " " .. bat.time .. " " .. bat.status
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else
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text = bat.perc
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end
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-- notifications for low and critical states
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if amount <= 5
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then
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naughty.notify{
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text = "shutdown imminent",
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title = "battery nearly exhausted",
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position = "top_right",
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timeout = 15,
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fg="#000000",
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bg="#ffffff",
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ontop = true
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}
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elseif amount <= 15
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then
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old_id = naughty.notify{
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text = "plug the cable",
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title = "battery low",
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position = "top_right",
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timeout = 5,
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fg="#202020",
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bg="#cdcdcd",
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ontop = true
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}
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end
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else
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text = "none"
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end
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if shadow
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then
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mybattery:set_text('')
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else
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mybattery:set_markup(markup(header_color, header)
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.. markup(color, text) .. " ")
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end
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end
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local mybatterytimer = timer({ timeout = refresh_timeout })
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mybatterytimer:connect_signal("timeout", mybatteryupdate)
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mybatterytimer:start()
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mybatterytimer:emit_signal("timeout")
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bat.widget = mybattery
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return setmetatable(bat, { __index = bat.widget })
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end
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return setmetatable(bat, { __call = function(_, ...) return worker(...) end })
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