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[etc/awesome.git] / widgets / temp.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6                                                   
7 --]]
8
9 local helpers      = require("lain.helpers")
10 local wibox        = require("wibox")
11
12 local io           = { open = io.open }
13 local tonumber     = tonumber
14
15 local setmetatable = setmetatable
16
17 -- coretemp
18 -- lain.widgets.temp
19 local temp = {}
20
21 local function worker(args)
22     local args     = args or {}
23     local timeout  = args.timeout or 1
24     local tempfile = args.tempfile or "/sys/class/thermal/thermal_zone0/temp"
25     local settings = args.settings or function() end
26
27     temp.widget = wibox.widget.textbox('')
28     helpers.set_map("temp_last", 0)
29
30     function update()
31         local f = io.open(tempfile)
32         if f ~= nil
33         then
34             coretemp_now = tonumber(f:read("*all")) / 1000
35             f:close()
36         else
37             coretemp_now = "N/A"
38         end
39
40         if helpers.get_map("temp_last") ~= coretemp_now then
41             widget = temp.widget
42             settings()
43             helpers.set_map("temp_last", coretemp_now)
44         end
45     end
46
47     helpers.newtimer("coretemp", timeout, update)
48
49     return temp.widget
50 end
51
52 return setmetatable(temp, { __call = function(_, ...) return worker(...) end })