awesome/widgets/battery_widget.lua

   1 local wibox = require("wibox")
   2 local vicious = require("vicious")
   3 local naughty = require("naughty")
   4 local beautiful = require("beautiful")
   5 local pairs = pairs
   6
   7 module("battery_widget")
   8
   9 -- Battery (based on https://bitbucket.org/skrattaren/awesome/src/)
  10
  11 local limits = { {25, 5},
  12                  {12, 3},
  13                  { 7, 1},
  14                  {0}}
  15
  16 local function getnextlim (num)
  17     for ind, pair in pairs(limits) do
  18         lim = pair[1]; step = pair[2]; nextlim = limits[ind+1][1] or 0
  19         if num > nextlim then
  20             repeat
  21                 lim = lim - step
  22             until num > lim
  23             if lim < nextlim then
  24                 lim = nextlim
  25             end
  26             return lim
  27         end
  28     end
  29 end
  30
  31 local function batclosure ()
  32     local nextlim = limits[1][1]
  33     return function (_, args)
  34         local prefix = "⚡"
  35         local state, charge = args[1], args[2]
  36         if not charge then return end
  37         if state == "-" then
  38             dirsign = "↓"
  39             prefix = "Bat:"
  40             if charge <= nextlim then
  41                 naughty.notify({title = "⚡ Warning! ⚡",
  42                                 text = "Battery has leaked most of its power ( ⚡ "
  43                                         ..charge.."%)!",
  44                                 timeout = 7,
  45                                 position = "top_right",
  46                                 fg = beautiful.fg_focus,
  47                                 bg = beautiful.bg_focus
  48                                })
  49                 nextlim = getnextlim(charge)
  50             end
  51         elseif state == "+" then
  52             dirsign = "↑"
  53             nextlim = limits[1][1]
  54         else
  55             return " ⚡ "
  56         end
  57         if dir ~= 0 then charge = charge.."%" end
  58         return " "..prefix.." "..dirsign..charge..dirsign.." "
  59     end
  60 end
  61
  62 batterywidget = wibox.widget.textbox()
  63 vicious.register(batterywidget, vicious.widgets.bat, batclosure(),
  64                     31, "BAT0")
  65
  66 return batterywidget