dotfiles/awesome/lain/widget/contrib/tp_smapi.lua

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2020-05-16 20:07:21 +00:00
--[[
Licensed under GNU General Public License v2
* (c) 2018, Luca CPZ
* (c) 2013, Conor Heine
--]]
local helpers = require("lain.helpers")
local focused = require("awful.screen").focused
local gears = require("gears")
local naughty = require("naughty")
local wibox = require("wibox")
local string = string
local type = type
-- ThinkPad battery infos and widget creator
-- http://www.thinkwiki.org/wiki/Tp_smapi
-- lain.widget.contrib.tp_smapi
local function factory(apipath)
local tp_smapi = {
path = apipath or "/sys/devices/platform/smapi"
}
function tp_smapi.get(batid, feature)
return helpers.first_line(string.format("%s/%s/%s", tp_smapi.path, batid or "BAT0", feature or ""))
end
function tp_smapi.installed(batid)
return tp_smapi.get(batid, "installed") == "1"
end
function tp_smapi.status(batid)
return tp_smapi.get(batid, "state")
end
function tp_smapi.percentage(batid)
return tp_smapi.get(batid, "remaining_percent")
end
-- either running or charging time
function tp_smapi.time(batid)
local status = tp_smapi.status(batid)
local mins_left = tp_smapi.get(batid, string.match(string.lower(status), "discharging") and "remaining_running_time" or "remaining_charging_time")
if not string.find(mins_left, "^%d+") then return "N/A" end
return string.format("%02d:%02d", math.floor(mins_left / 60), mins_left % 60) -- HH:mm
end
function tp_smapi.hide()
if not tp_smapi.notification then return end
naughty.destroy(tp_smapi.notification)
tp_smapi.notification = nil
end
function tp_smapi.show(batid, seconds, scr)
if not tp_smapi.installed(batid) then return end
local mfgr = tp_smapi.get(batid, "manufacturer") or "no_mfgr"
local model = tp_smapi.get(batid, "model") or "no_model"
local chem = tp_smapi.get(batid, "chemistry") or "no_chem"
local status = tp_smapi.get(batid, "state")
local time = tp_smapi.time(batid)
local msg = ""
if status and status ~= "idle" then
msg = string.format("[%s] %s %s", status, time ~= "N/A" and time or "unknown remaining time",
string.lower(status):gsub(" ", ""):gsub("\n", "") == "charging" and " until charged" or " remaining")
else
msg = "On AC power"
end
tp_smapi.hide()
tp_smapi.notification = naughty.notify {
title = string.format("%s: %s %s (%s)", batid, mfgr, model, chem),
text = msg,
timeout = type(seconds) == "number" and seconds or 0,
screen = scr or focused()
}
end
function tp_smapi.create_widget(args)
local args = args or {}
local pspath = args.pspath or "/sys/class/power_supply/"
local batteries = args.batteries or (args.battery and {args.battery}) or {}
local timeout = args.timeout or 30
local settings = args.settings or function() end
if #batteries == 0 then
helpers.line_callback("ls -1 " .. pspath, function(line)
local bstr = string.match(line, "BAT%w+")
if bstr then batteries[#batteries + 1] = bstr end
end)
end
local all_batteries_installed = true
for i, battery in ipairs(batteries) do
if not tp_smapi.installed(battery) then
naughty.notify {
preset = naughty.config.critical,
title = "tp_smapi: error while creating widget",
text = string.format("battery %s is not installed", battery)
}
all_batteries_installed = false
break
end
end
if not all_batteries_installed then return end
tpbat = {
batteries = batteries,
widget = args.widget or wibox.widget.textbox()
}
function tpbat.update()
tpbat_now = {
n_status = {},
n_perc = {},
n_time = {},
status = "N/A"
}
for i = 1, #batteries do
tpbat_now.n_status[i] = tp_smapi.status(batteries[i]) or "N/A"
tpbat_now.n_perc[i] = tp_smapi.percentage(batteries[i])
tpbat_now.n_time[i] = tp_smapi.time(batteries[i]) or "N/A"
if not tpbat_now.n_status[i]:lower():match("full") then
tpbat_now.status = tpbat_now.n_status[i]
end
end
widget = tpbat.widget -- backwards compatibility
settings()
end
helpers.newtimer("thinkpad-batteries", timeout, tpbat.update)
return tpbat
end
return tp_smapi
end
return factory