update lain

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

@@ -0,0 +1,147 @@
+--[[
+
+     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