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local awful = require("awful")
local wibox = require("wibox")
local naughty = require("naughty")
-- tooltip text function
local tooltip_text_format = [[
<b>%s (%s)</b>
Status: %s
Charge: %.1f%%
Health: %.1f%%
Cycle Count: %d
Rated Capacity: %.0fmAh (%.1fWh)
Voltage Min: %.1fV
Voltage Now: %.1fV
Technology: %s
Manufacturer: %s
Serial Number: %s
]]
function bat_uevents()
-- TODO io.popen will stop execution
local uevents = io.popen("ls /sys/class/power_supply/*/uevent")
local text = ""
-- loop over uevent files
for uevent in uevents:lines() do
local ueventf = io.open(uevent)
local ueventc = ueventf:read('a')
ueventf:close()
-- get attributes
local a = {}
for k, v in ueventc:gmatch("POWER_SUPPLY_(.-)=%s*(.-)\n") do
a[k] = v
end
-- add to tooltip text
if a.TYPE == "Battery" then
local capacity = a.ENERGY_NOW * 100 / a.ENERGY_FULL
local health = a.ENERGY_FULL * 100 / a.ENERGY_FULL_DESIGN
local mah = a.ENERGY_FULL_DESIGN * 1000 / a.VOLTAGE_MIN_DESIGN
text = text .. tooltip_text_format:format(
a.NAME,
a.MODEL_NAME,
a.STATUS,
capacity,
health,
a.CYCLE_COUNT,
mah,
a.ENERGY_FULL_DESIGN / 1000000,
a.VOLTAGE_MIN_DESIGN / 1000000,
a.VOLTAGE_NOW / 1000000,
a.TECHNOLOGY,
a.MANUFACTURER,
a.SERIAL_NUMBER
)
end
end
uevents:close()
if text == "" then
return "No Batteries Installed"
end
return text
end
-- vars
local widget = wibox.widget.textbox()
local tooltip = awful.tooltip {
objects = {widget},
delay_show = 1,
timeout = 2,
timer_function = bat_uevents,
}
-- update widget on lowbat output
local lowbat_pid = awful.spawn.with_line_callback("lowbat", {
stdout = function(stdout)
widget:set_text(stdout)
end,
stderr = function(stderr)
naughty.notify({
preset = naughty.config.presets.critical,
title = "lowbat error",
text = stderr
})
end,
})
-- kill current lowbat on refresh/exit
awesome.connect_signal("exit", function() awful.spawn("kill " .. lowbat_pid) end)
return widget
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