--[[
-
- 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 first_line = require("lain.helpers").first_line
-
+local make_widget = require("lain.helpers").make_widget_textbox
+local newtimer = require("lain.helpers").newtimer
local naughty = require("naughty")
local wibox = require("wibox")
-
-local math = { floor = math.floor }
+local math = { abs = math.abs,
+ floor = math.floor,
+ log10 = math.log10,
+ min = math.min }
local string = { format = string.format }
-
+local ipairs = ipairs
+local type = type
+local tonumber = tonumber
local setmetatable = setmetatable
-- Battery infos
-- lain.widgets.bat
-local bat = { id = nil }
local function worker(args)
- local args = args or {}
- local timeout = args.timeout or 30
- local battery = args.battery or "BAT0"
- local settings = args.settings or function() end
+ local bat = make_widget()
+ local args = args or {}
+ local timeout = args.timeout or 30
+ local batteries = args.batteries or (args.battery and {args.battery}) or {"BAT0"}
+ local ac = args.ac or "AC0"
+ local notify = args.notify or "on"
+ local settings = args.settings or function() end
+
+ 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"
+ }
bat_now = {
- status = "not present",
- perc = "N/A",
- time = "N/A",
- watt = "N/A"
+ status = "N/A",
+ ac_status = "N/A",
+ perc = "N/A",
+ time = "N/A",
+ watt = "N/A"
}
- widget = wibox.widget.textbox('')
-
- function update()
- local present = first_line("/sys/class/power_supply/"
- .. battery
- .. "/present")
-
- if present == "1"
- then
- local rate = first_line("/sys/class/power_supply/"
- .. battery ..
- "/power_now")
- local ratev = first_line("/sys/class/power_supply/"
- .. battery ..
- "/voltage_now")
- local rem = first_line("/sys/class/power_supply/"
- .. battery ..
- "/energy_now")
- local tot = first_line("/sys/class/power_supply/"
- .. battery ..
- "/energy_full")
- bat_now.status = first_line("/sys/class/power_supply/"
- .. battery ..
- "/status")
-
- local time_rat = 0
- if bat_now.status == "Charging"
- then
- time_rat = (tot - rem) / rate
- elseif bat_now.status == "Discharging"
- then
- time_rat = rem / rate
+ 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
+
+ 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
+ local pspath = "/sys/class/power_supply/"
+
+ for i, battery in ipairs(batteries) do
+ local bstr = pspath .. battery
+ local present = 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(first_line(bstr .. "/current_now"))
+ local rate_voltage = tonumber(first_line(bstr .. "/voltage_now"))
+ local rate_power = tonumber(first_line(bstr .. "/power_now"))
+
+ -- energy_now(P)[uWh], charge_now(I)[uAh]
+ local energy_now = tonumber(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 energy_percentage = tonumber(first_line(bstr .. "/capacity")) or
+ math.floor((energy_now / energy_full) * 100)
+
+ bat_now.n_status[i] = 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
- local hrs = math.floor(time_rat)
- local min = (time_rat - hrs) * 60
+ -- 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]
+ 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(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
- bat_now.time = string.format("%02d:%02d", hrs, min)
- bat_now.perc = (rem / tot) * 100
- bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
+ widget = bat.widget
+ settings()
- -- notifications for low and critical states
- if bat_now.perc <= 5
- then
+ -- notifications for low and critical states
+ if notify == "on" and type(bat_now.perc) == "number" and 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,
+ preset = bat_notification_critical_preset,
replaces_id = bat.id
}).id
- elseif bat.perc <= 15
- then
+ 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,
+ preset = bat_notification_low_preset,
replaces_id = bat.id
}).id
end
-
- bat_now.perc = string.format("%d", bat_now.perc)
end
-
- settings()
end
- newtimer("bat", timeout, update)
-
- return widget
+ newtimer("batteries", timeout, bat.update)
+
+ return bat
end
-return setmetatable(bat, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })
projects / etc / awesome.git / blobdiff