--[[
-
- Licensed under GNU General Public License v2
- * (c) 2013, Luke Bonham
- * (c) 2010-2012, Peter Hofmann
-
+
+ Licensed under GNU General Public License v2
+ * (c) 2013, Luke Bonham
+ * (c) 2010-2012, Peter Hofmann
+
--]]
local newtimer = require("lain.helpers").newtimer
local math = { floor = math.floor }
local string = { format = string.format }
+local tonumber = tonumber
local setmetatable = setmetatable
-- Battery infos
-- lain.widgets.bat
-local bat = {}
local function worker(args)
- local args = args or {}
- local timeout = args.timeout or 30
- local battery = args.battery or "BAT0"
+ local bat = {}
+ local args = args or {}
+ local timeout = args.timeout or 30
+ local battery = args.battery or "BAT0"
+ local ac = args.ac or "AC0"
+ local notify = args.notify or "on"
local settings = args.settings or function() end
bat.widget = wibox.widget.textbox('')
+ bat_notification_low_preset = {
+ title = "Battery low",
+ text = "Plug the cable!",
+ timeout = 15,
+ fg = "#202020",
+ bg = "#CDCDCD"
+ }
+
+ bat_notification_critical_preset = {
+ title = "Battery exhausted",
+ text = "Shutdown imminent",
+ timeout = 15,
+ fg = "#000000",
+ bg = "#FFFFFF"
+ }
+
function update()
bat_now = {
- status = "Not present",
- perc = "N/A",
- time = "N/A",
- watt = "N/A"
+ status = "Not present",
+ ac_status = "N/A",
+ perc = "N/A",
+ time = "N/A",
+ watt = "N/A"
}
- local bstr = "/sys/class/power_supply/" .. battery
-
+ local bstr = "/sys/class/power_supply/" .. battery
+ local astr = "/sys/class/power_supply/" .. ac
local present = first_line(bstr .. "/present")
if present == "1"
then
- local rate = first_line(bstr .. "/power_now") or
- first_line(bstr .. "/current_now")
+ -- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW]
+ local rate_current = tonumber(first_line(bstr .. "/current_now"))
+ local rate_voltage = tonumber(first_line(bstr .. "/voltage_now"))
+ local rate_power = tonumber(first_line(bstr .. "/power_now"))
- local ratev = first_line(bstr .. "/voltage_now")
+ -- energy_now(P)[uWh], charge_now(I)[uAh]
+ local energy_now = tonumber(first_line(bstr .. "/energy_now") or
+ first_line(bstr .. "/charge_now"))
- local rem = first_line(bstr .. "/energy_now") or
- first_line(bstr .. "/charge_now")
+ -- energy_full(P)[uWh], charge_full(I)[uAh]
+ local energy_full = tonumber(first_line(bstr .. "/energy_full") or
+ first_line(bstr .. "/charge_full"))
- local tot = first_line(bstr .. "/energy_full") or
- first_line(bstr .. "/charge_full")
+ local energy_percentage = tonumber(first_line(bstr .. "/capacity")) or
+ math.floor((energy_now / energy_full) * 100)
- bat_now.status = first_line(bstr .. "/status") or "N/A"
+ bat_now.status = first_line(bstr .. "/status") or "N/A"
+ bat_now.ac_status = first_line(astr .. "/online") or "N/A"
- local time_rat = 0
- if bat_now.status == "Charging"
- then
- time_rat = (tot - rem) / rate
- elseif bat_now.status == "Discharging"
+ -- update {perc,time,watt} iff rate > 0 and battery not full
+ if ((rate_current and rate_current > 0) or (rate_power and rate_power > 0))
+ and bat_now.status ~= "N/A" and bat_now.status ~= "Full"
then
- time_rat = rem / rate
- end
-
- local hrs = math.floor(time_rat)
- local min = (time_rat - hrs) * 60
+ local rate_time = 0
+ if bat_now.status == "Charging" then
+ rate_time = (energy_full - energy_now) / (rate_power or rate_current)
+ elseif bat_now.status == "Discharging" then
+ rate_time = energy_now / (rate_power or rate_current)
+ end
- bat_now.time = string.format("%02d:%02d", hrs, min)
- bat_now.perc = (rem / tot) * 100
- bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
+ local hours = math.floor(rate_time)
+ local minutes = math.floor((rate_time - hours) * 60)
+ local watt = rate_power and (rate_power / 1e6) or (rate_voltage * rate_current) / 1e12
- -- notifications for low and critical states
- if bat_now.status == "Discharging"
- then
- if bat_now.perc <= 5
- then
- bat.id = naughty.notify({
- text = "shutdown imminent",
- title = "battery nearly exhausted",
- position = "top_right",
- timeout = 15,
- fg="#000000",
- bg="#ffffff",
- ontop = true,
- replaces_id = bat.id
- }).id
- elseif bat_now.perc <= 15
- then
- bat.id = naughty.notify({
- text = "plug the cable",
- title = "battery low",
- position = "top_right",
- timeout = 15,
- fg="#202020",
- bg="#cdcdcd",
- ontop = true,
- replaces_id = bat.id
- }).id
- end
+ bat_now.perc = string.format("%d", energy_percentage)
+ bat_now.time = string.format("%02d:%02d", hours, minutes)
+ bat_now.watt = string.format("%.2fW", watt)
end
-
- bat_now.perc = string.format("%d", bat_now.perc)
end
widget = bat.widget
settings()
+
+ -- notifications for low and critical states
+ if bat_now.status == "Discharging" and notify == "on" and bat_now.perc then
+ local nperc = tonumber(bat_now.perc) or 100
+ if nperc <= 5 then
+ bat.id = naughty.notify({
+ preset = bat_notification_critical_preset,
+ replaces_id = bat.id,
+ }).id
+ elseif nperc <= 15 then
+ bat.id = naughty.notify({
+ preset = bat_notification_low_preset,
+ replaces_id = bat.id,
+ }).id
+ end
+ end
end
- newtimer("bat", timeout, update)
+ newtimer(battery, timeout, update)
- return bat.widget
+ return setmetatable(bat, { __index = bat.widget })
end
-return setmetatable(bat, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })
projects / etc / awesome.git / blobdiff