forgot to really add the widget; #157 #164

widgets/pulseaudio.lua

@@ -0,0 +1,48 @@
+
+--[[
+                                                  
+     Licensed under GNU General Public License v2 
+      * (c) 2016, Luke Bonham                     
+                                                  
+--]]
+
+local read_pipe       = require("lain.helpers").read_pipe
+local newtimer        = require("lain.helpers").newtimer
+local wibox           = require("wibox")
+
+local string          = { match  = string.match,
+                          format = string.format }
+
+local setmetatable    = setmetatable
+
+-- PulseAudio volume
+-- lain.widgets.pulseaudio
+local pulseaudio = {}
+
+local function worker(args)
+   local args        = args or {}
+   local timeout     = args.timeout or 5
+   local settings    = args.settings or function() end
+
+   pulseaudio.sink   = args.sink or 0 -- user defined or first one
+   pulseaudio.cmd    = args.cmd or string.format("pacmd list-sinks | grep -e 'index: %d' -e 'volume: front' -e 'muted'", pulseaudio.sink)
+   pulseaudio.widget = wibox.widget.textbox('')
+
+   function pulseaudio.update()
+      local s = read_pipe(pulseaudio.cmd)
+
+      volume_now = {}
+      volume_now.left  = tonumber(string.match(s, "left.-(%d+)%%"))
+      volume_now.right = tonumber(string.match(s, "right.-(%d+)%%"))
+      volume_now.muted = string.match(s, "muted: (%S+)")
+
+      widget = pulseaudio.widget
+      settings()
+   end
+
+   newtimer(string.format("pulseaudio-%s", pulseaudio.sink), timeout, pulseaudio.update)
+
+   return setmetatable(pulseaudio, { __index = pulseaudio.widget })
+end
+
+return setmetatable(pulseaudio, { __call = function(_, ...) return worker(...) end })