Fixed scope bugs

classes/volume/arc_widget.lua

@@ -32,7 +32,7 @@ function P:set_tooltip(text)
 end
 
 function P:new()
-	widget = {}
+	local widget = {}
 	setmetatable(widget, self)
 	self.__index = self
 

classes/volume/bar_widget.lua

@@ -22,7 +22,7 @@ function P:set_tooltip(text)
 end
 
 function P:new()
-	widget = {}
+	local widget = {}
 	setmetatable(widget, self)
 	self.__index = self
 

classes/volume/volume.lua

@@ -3,7 +3,9 @@ local widget_types = {
 	arc = require("classes/volume/arc_widget")
 }
 
-local P = {}
+local P = {
+	name = "volume"
+}
 
 ---
 -- Internal methods
@@ -166,7 +168,7 @@ end
 ---
 function P:new(args)
 	-- Arguments
-	v = {
+	local v = {
 		pa_options = args.cli_options or "",
 		pa_sink = args.pa_sink or "",
 		update_interval = args.update_interal or 5,