--[[ tpbat.lua Battery status widget for ThinkPad laptops that use SMAPI lain.widget.contrib.tpbat More on tp_smapi: http://www.thinkwiki.org/wiki/Tp_smapi Licensed under GNU General Public License v2 * (c) 2013, Conor Heine * (c) 2013, Luca CPZ * (c) 2010-2012, Peter Hofmann --]] local debug = { getinfo = debug.getinfo } local newtimer = require("lain.helpers").newtimer local first_line = require("lain.helpers").first_line local naughty = require("naughty") local wibox = require("wibox") local string = { format = string.format } local math = { floor = math.floor } local tostring = tostring local setmetatable = setmetatable package.path = debug.getinfo(1,"S").source:match[[^@?(.*[\/])[^\/]-$]] .. "?.lua;" .. package.path local smapi = require("smapi") -- ThinkPad SMAPI-enabled battery info widget -- lain.widget.contrib.tpbat local tpbat = {} function tpbat.hide() if not tpbat.notification then return end naughty.destroy(tpbat.notification) tpbat.notification = nil end function tpbat.show(t_out) tpbat.hide() local bat = tpbat.bat if bat == nil or not bat:installed() then return end local t_out = t_out or 0 local mfgr = bat:get('manufacturer') or "no_mfgr" local model = bat:get('model') or "no_model" local chem = bat:get('chemistry') or "no_chem" local status = bat:get('state') or "nil" local time = bat:remaining_time() local msg = "\t" if status ~= "idle" and status ~= "nil" then if time == "N/A" then msg = "...Calculating time remaining..." else msg = time .. (status == "charging" and " until charged" or " remaining") end else msg = "On AC Power" end local str = string.format("%s : %s %s (%s)\n", bat.name, mfgr, model, chem) .. string.format("\n%s \t\t\t %s", status:upper(), msg) tpbat.notification = naughty.notify({ text = str, timeout = t_out, screen = client.focus and client.focus.screen or 1 }) end function tpbat.register(args) local args = args or {} local timeout = args.timeout or 30 local battery = args.battery or "BAT0" local settings = args.settings or function() end tpbat.bat = smapi:battery(battery) -- Create a new battery local bat = tpbat.bat tpbat.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" } if bat:get('state') == nil then local n = naughty.notify({ preset = bat_notification_low_preset, title = "SMAPI Battery Warning: Unable to read battery state!", text = "This widget is intended for ThinkPads. Is tp_smapi installed? Check your configs & paths.", screen = client.focus and client.focus.screen or 1 }) end function tpbat.update() bat_now = { status = "Not present", perc = "N/A", time = "N/A", watt = "N/A" } if bat:installed() then bat_now.status = bat:status() or "N/A" bat_now.perc = bat:percent() bat_now.time = bat:remaining_time() -- bat_now.watt = string.format("%.2fW", (VOLTS * AMPS) / 1e12) -- notifications for low and critical states (when discharging) if bat_now.status == "discharging" then if bat_now.perc <= 5 then tpbat.id = naughty.notify({ preset = bat_notification_critical_preset, replaces_id = tpbat.id, screen = client.focus and client.focus.screen or 1 }).id elseif bat_now.perc <= 15 then tpbat.id = naughty.notify({ preset = bat_notification_low_preset, replaces_id = tpbat.id, screen = client.focus and client.focus.screen or 1 }).id end end bat_now.perc = tostring(bat_now.perc) end widget = tpbat.widget settings() end newtimer("tpbat-" .. bat.name, timeout, tpbat.update) widget:connect_signal('mouse::enter', function () tpbat.show() end) widget:connect_signal('mouse::leave', function () tpbat.hide() end) return tpbat end return setmetatable(tpbat, { __call = function(_, ...) return tpbat.register(...) end })