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1214151ec3c479664a3b960eb3f904119f89c205
[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 helpers      = require("lain.helpers")
10 local wibox        = require("wibox")
11 local setmetatable = setmetatable
12
13 -- Basic template for custom widgets (asynchronous version)
14 -- lain.widgets.abase
15
16 local function worker(args)
17     local abase     = helpers.make_widget_textbox()
18     local args      = args or {}
19     local timeout   = args.timeout or 5
20     local nostart   = args.nostart or false
21     local stoppable = args.stoppable or false
22     local cmd       = args.cmd or ""
23     local settings  = args.settings or function() end
24
25     function abase.update()
26         helpers.async(cmd, function(f)
27             output = f
28             if output ~= abase.prev then
29                 widget = abase.widget
30                 settings()
31                 abase.prev = output
32             end
33         end)
34     end
35
36     abase.timer = helpers.newtimer(cmd, timeout, abase.update, nostart, stoppable)
37
38     return abase
39 end
40
41 return setmetatable({}, { __call = function(_, ...) return worker(...) end })