abase widget added

widgets/abase.lua

@@ -0,0 +1,43 @@
+
+--[[
+                                                  
+     Licensed under GNU General Public License v2 
+      * (c) 2014, Luke Bonham                     
+                                                  
+--]]
+
+local newtimer     = require("lain.helpers").newtimer
+local async        = require("lain.asyncshell")
+local wibox        = require("wibox")
+
+local io           = io
+local setmetatable = setmetatable
+
+-- Basic template for custom widgets 
+-- Asynchronous version
+-- lain.widgets.abase
+
+local function worker(args)
+    local abase    = {}
+    local args     = args or {}
+    local timeout  = args.timeout or 5
+    local cmd      = args.cmd or ""
+    local settings = args.settings or function() end
+
+    abase.widget = wibox.widget.textbox('')
+
+    function abase.update()
+        async.request(cmd, function(f)
+            output = f:read("*a")
+            f:close()
+            widget = abase.widget
+            settings()
+        end)
+    end
+
+    newtimer(cmd, timeout, abase.update)
+
+    return setmetatable(abase, { __index = abase.widget })
+end
+
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })