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[etc/awesome.git] / widgets / base.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2014, Luke Bonham                     
6                                                   
7 --]]
8
9 local newtimer     = require("lain.helpers").newtimer
10 local wibox        = require("wibox")
11
12 local io           = io
13 local setmetatable = setmetatable
14
15 -- Basic template for custom widgets 
16 -- lain.widgets.base
17 local base = {}
18
19 local function worker(args)
20     local args     = args or {}
21     local timeout  = args.timeout or 5
22     local cmd      = args.cmd or ""
23     local settings = args.settings or function() end
24
25     base.widget = wibox.widget.textbox('')
26
27     function base.update()
28         local f = assert(io.popen(cmd))
29         output = f:read("*all")
30         f:close()
31         widget = base.widget
32         settings()
33     end
34
35     newtimer(cmd, timeout, base.update)
36
37     return setmetatable(base, { __index = base.widget })
38 end
39
40 return setmetatable(base, { __call = function(_, ...) return worker(...) end })