mirror of https://github.com/lcpz/lain.git
219 lines
8.1 KiB
Lua
219 lines
8.1 KiB
Lua
--[[
|
|
|
|
Licensed under GNU General Public License v2
|
|
* (c) 2013, Luca CPZ
|
|
* (c) 2010-2012, Peter Hofmann
|
|
|
|
--]]
|
|
|
|
local helpers = require("lain.helpers")
|
|
local fs = require("gears.filesystem")
|
|
local naughty = require("naughty")
|
|
local wibox = require("wibox")
|
|
local math = math
|
|
local string = string
|
|
local ipairs = ipairs
|
|
local tonumber = tonumber
|
|
|
|
-- Battery infos
|
|
-- lain.widget.bat
|
|
|
|
local function factory(args)
|
|
local pspath = args.pspath or "/sys/class/power_supply/"
|
|
|
|
if not fs.is_dir(pspath) then
|
|
naughty.notify { text = "lain.widget.bat: invalid power supply path", timeout = 0 }
|
|
return
|
|
end
|
|
|
|
args = args or {}
|
|
|
|
local bat = { widget = args.widget or wibox.widget.textbox() }
|
|
local timeout = args.timeout or 30
|
|
local notify = args.notify or "on"
|
|
local full_notify = args.full_notify or notify
|
|
local n_perc = args.n_perc or { 5, 15 }
|
|
local batteries = args.batteries or (args.battery and {args.battery}) or {}
|
|
local ac = args.ac or "AC0"
|
|
local settings = args.settings or function() end
|
|
|
|
function bat.get_batteries()
|
|
helpers.line_callback("ls -1 " .. pspath, function(line)
|
|
local bstr = string.match(line, "BAT%w+")
|
|
if bstr then
|
|
batteries[#batteries + 1] = bstr
|
|
else
|
|
ac = string.match(line, "A%w+") or "AC0"
|
|
end
|
|
end)
|
|
end
|
|
|
|
if #batteries == 0 then bat.get_batteries() end
|
|
|
|
bat_notification_critical_preset = {
|
|
title = "Battery exhausted",
|
|
text = "Shutdown imminent",
|
|
timeout = 15,
|
|
fg = "#000000",
|
|
bg = "#FFFFFF"
|
|
}
|
|
|
|
bat_notification_low_preset = {
|
|
title = "Battery low",
|
|
text = "Plug the cable!",
|
|
timeout = 15,
|
|
fg = "#202020",
|
|
bg = "#CDCDCD"
|
|
}
|
|
|
|
bat_notification_charged_preset = {
|
|
title = "Battery full",
|
|
text = "You can unplug the cable",
|
|
timeout = 15,
|
|
fg = "#202020",
|
|
bg = "#CDCDCD"
|
|
}
|
|
|
|
bat_now = {
|
|
status = "N/A",
|
|
ac_status = "N/A",
|
|
perc = "N/A",
|
|
time = "N/A",
|
|
watt = "N/A"
|
|
}
|
|
|
|
bat_now.n_status = {}
|
|
bat_now.n_perc = {}
|
|
for i = 1, #batteries do
|
|
bat_now.n_status[i] = "N/A"
|
|
bat_now.n_perc[i] = 0
|
|
end
|
|
|
|
-- used to notify full charge only once before discharging
|
|
local fullnotification = false
|
|
|
|
function bat.update()
|
|
local sum_rate_current = 0
|
|
local sum_rate_voltage = 0
|
|
local sum_rate_power = 0
|
|
local sum_rate_energy = 0
|
|
local sum_energy_now = 0
|
|
local sum_energy_full = 0
|
|
|
|
for i, battery in ipairs(batteries) do
|
|
local bstr = pspath .. battery
|
|
local present = helpers.first_line(bstr .. "/present")
|
|
|
|
if tonumber(present) == 1 then
|
|
-- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW]
|
|
local rate_current = tonumber(helpers.first_line(bstr .. "/current_now"))
|
|
local rate_voltage = tonumber(helpers.first_line(bstr .. "/voltage_now"))
|
|
local rate_power = tonumber(helpers.first_line(bstr .. "/power_now"))
|
|
|
|
-- energy_now(P)[uWh], charge_now(I)[uAh]
|
|
local energy_now = tonumber(helpers.first_line(bstr .. "/energy_now") or
|
|
helpers.first_line(bstr .. "/charge_now"))
|
|
|
|
-- energy_full(P)[uWh], charge_full(I)[uAh]
|
|
local energy_full = tonumber(helpers.first_line(bstr .. "/energy_full") or
|
|
helpers.first_line(bstr .. "/charge_full"))
|
|
|
|
local energy_percentage = tonumber(helpers.first_line(bstr .. "/capacity")) or
|
|
math.floor((energy_now / energy_full) * 100)
|
|
|
|
bat_now.n_status[i] = helpers.first_line(bstr .. "/status") or "N/A"
|
|
bat_now.n_perc[i] = energy_percentage or bat_now.n_perc[i]
|
|
|
|
sum_rate_current = sum_rate_current + (rate_current or 0)
|
|
sum_rate_voltage = sum_rate_voltage + (rate_voltage or 0)
|
|
sum_rate_power = sum_rate_power + (rate_power or 0)
|
|
sum_rate_energy = sum_rate_energy + (rate_power or (((rate_voltage or 0) * (rate_current or 0)) / 1e6))
|
|
sum_energy_now = sum_energy_now + (energy_now or 0)
|
|
sum_energy_full = sum_energy_full + (energy_full or 0)
|
|
end
|
|
end
|
|
|
|
-- When one of the battery is charging, others' status are either
|
|
-- "Full", "Unknown" or "Charging". When the laptop is not plugged in,
|
|
-- one or more of the batteries may be full, but only one battery
|
|
-- discharging suffices to set global status to "Discharging".
|
|
bat_now.status = bat_now.n_status[1] or "N/A"
|
|
for _,status in ipairs(bat_now.n_status) do
|
|
if status == "Discharging" or status == "Charging" then
|
|
bat_now.status = status
|
|
end
|
|
end
|
|
bat_now.ac_status = tonumber(helpers.first_line(string.format("%s%s/online", pspath, ac))) or "N/A"
|
|
|
|
if bat_now.status ~= "N/A" then
|
|
if bat_now.status ~= "Full" and sum_rate_power == 0 and bat_now.ac_status == 1 then
|
|
bat_now.perc = math.floor(math.min(100, (sum_energy_now / sum_energy_full) * 100))
|
|
bat_now.time = "00:00"
|
|
bat_now.watt = 0
|
|
|
|
-- update {perc,time,watt} iff battery not full and rate > 0
|
|
elseif bat_now.status ~= "Full" then
|
|
local rate_time = 0
|
|
-- Calculate time and watt if rates are greater then 0
|
|
if (sum_rate_power > 0 or sum_rate_current > 0) then
|
|
local div = (sum_rate_power > 0 and sum_rate_power) or sum_rate_current
|
|
|
|
if bat_now.status == "Charging" then
|
|
rate_time = (sum_energy_full - sum_energy_now) / div
|
|
else -- Discharging
|
|
rate_time = sum_energy_now / div
|
|
end
|
|
|
|
if 0 < rate_time and rate_time < 0.01 then -- check for magnitude discrepancies (#199)
|
|
rate_time_magnitude = math.abs(math.floor(math.log10(rate_time)))
|
|
rate_time = rate_time * 10^(rate_time_magnitude - 2)
|
|
end
|
|
end
|
|
|
|
local hours = math.floor(rate_time)
|
|
local minutes = math.floor((rate_time - hours) * 60)
|
|
bat_now.perc = math.floor(math.min(100, (sum_energy_now / sum_energy_full) * 100))
|
|
bat_now.time = string.format("%02d:%02d", hours, minutes)
|
|
bat_now.watt = tonumber(string.format("%.2f", sum_rate_energy / 1e6))
|
|
elseif bat_now.status == "Full" then
|
|
bat_now.perc = 100
|
|
bat_now.time = "00:00"
|
|
bat_now.watt = 0
|
|
end
|
|
end
|
|
|
|
widget = bat.widget
|
|
settings()
|
|
|
|
-- notifications for critical, low, and full levels
|
|
if notify == "on" then
|
|
if bat_now.status == "Discharging" then
|
|
if tonumber(bat_now.perc) <= n_perc[1] then
|
|
bat.id = naughty.notify({
|
|
preset = bat_notification_critical_preset,
|
|
replaces_id = bat.id
|
|
}).id
|
|
elseif tonumber(bat_now.perc) <= n_perc[2] then
|
|
bat.id = naughty.notify({
|
|
preset = bat_notification_low_preset,
|
|
replaces_id = bat.id
|
|
}).id
|
|
end
|
|
fullnotification = false
|
|
elseif bat_now.status == "Full" and full_notify == "on" and not fullnotification then
|
|
bat.id = naughty.notify({
|
|
preset = bat_notification_charged_preset,
|
|
replaces_id = bat.id
|
|
}).id
|
|
fullnotification = true
|
|
end
|
|
end
|
|
end
|
|
|
|
helpers.newtimer("batteries", timeout, bat.update)
|
|
|
|
return bat
|
|
end
|
|
|
|
return factory
|