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[etc/awesome.git] / widgets / abase.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 async        = require("lain.asyncshell")
11 local wibox        = require("wibox")
12
13 local setmetatable = setmetatable
14
15 -- Basic template for custom widgets 
16 -- Asynchronous version
17 -- lain.widgets.abase
18
19 local function worker(args)
20     local abase    = {}
21     local args     = args or {}
22     local timeout  = args.timeout or 5
23     local cmd      = args.cmd or ""
24     local settings = args.settings or function() end
25
26     abase.widget = wibox.widget.textbox('')
27
28     function abase.update()
29         async.request(cmd, function(f)
30             output = f:read("*a")
31             f:close()
32             widget = abase.widget
33             settings()
34         end)
35     end
36
37     newtimer(cmd, timeout, abase.update)
38
39     return setmetatable(abase, { __index = abase.widget })
40 end
41
42 return setmetatable({}, { __call = function(_, ...) return worker(...) end })