Add '.config/awesome/lain/' from commit 'fc6e880da40668c6e9bd9da3786ff2fcae519c75'

[etc/awesome.git] / .config / awesome / lain / widget / watch.lua

diff --git a/.config/awesome/lain/widget/watch.lua b/.config/awesome/lain/widget/watch.lua
new file mode 100644 (file)
index 0000000..36118b8
--- /dev/null
+++ b/.config/awesome/lain/widget/watch.lua
@@ -0,0 +1,40 @@
+
+--[[
+                                                  
+     Licensed under GNU General Public License v2 
+      * (c) 2014, Luke Bonham                     
+                                                  
+--]]
+
+local helpers = require("lain.helpers")
+local textbox = require("wibox.widget.textbox")
+
+-- Template for asynchronous watcher widgets
+-- lain.widget.watch
+
+local function factory(args)
+    local watch     = { widget = args.widget or textbox() }
+    local args      = args or {}
+    local timeout   = args.timeout or 5
+    local nostart   = args.nostart or false
+    local stoppable = args.stoppable or false
+    local cmd       = args.cmd
+    local settings  = args.settings or function() widget:set_text(output) end
+
+    function watch.update()
+        helpers.async(cmd, function(f)
+            output = f
+            if output ~= watch.prev then
+                widget = watch.widget
+                settings()
+                watch.prev = output
+            end
+        end)
+    end
+
+    watch.timer = helpers.newtimer(cmd, timeout, watch.update, nostart, stoppable)
+
+    return watch
+end
+
+return factory