Minor cleanup

classes/backlight/arc_widget.lua

@@ -1,4 +1,5 @@
 local P = {}
+P.__index = P
 
 function P:set_value(value)
 	-- Set widget value. (0 - 100)
@@ -30,7 +31,6 @@ end
 function P:new()
 	local widget = {}
 	setmetatable(widget, self)
-	self.__index = self
 
 	widget.icon = wibox.widget {
 		id = "icon",

classes/backlight/backlight.lua

@@ -5,7 +5,7 @@ local widget_types = {
 local P = {
 	name = "backlight"
 }
-
+P.__index = P
 
 ---
 -- Internal methods
@@ -101,7 +101,6 @@ function P:new(args)
 		-- do nothing. Updated in _get_status()
 	}
 	setmetatable(b, self)
-	self.__index = self
 
 	b.widget = widget_types[b.widget_type]:new()
 

classes/battery/arc_widget.lua

@@ -1,4 +1,5 @@
 local P = {}
+P.__index = P
 
 function P:set_value(value)
 	-- Set widget value. (0 - 100)
@@ -68,7 +69,6 @@ function P:new()
 		state = "error"
 	}
 	setmetatable(widget, self)
-	self.__index = self
 
 	widget.icon = wibox.widget {
 		image = beautiful.icons.battery.missing,

classes/battery/battery.lua

@@ -6,7 +6,7 @@ local widget_types = {
 local P = {
 	name = "battery"
 }
-
+P.__index = P
 
 ---
 -- Internal methods

classes/battery/prog_widget.lua

@@ -1,4 +1,5 @@
 local P = {}
+P.__index = P
 
 function P:set_value(value)
 	-- Set widget value. (0 - 100)
@@ -50,7 +51,6 @@ function P:new()
 		state = "error"
 	}
 	setmetatable(widget, self)
-	self.__index = self
 
 	widget.progressbar = wibox.widget {
 		max_value = 100,

classes/mpc/mpc.lua

@@ -5,6 +5,7 @@ local widget_types = {
 local P = {
 	name = "mpc"
 }
+P.__index = P
 
 ---
 -- Internal methods
@@ -102,7 +103,6 @@ function P:new(args)
 		mpd_host = args.mpd_host or "localhost",
 	}
 	setmetatable(m, self)
-	self.__index = self
 
 	-- Create widget for this volume interface
 	m.widget = widget_types[m.widget_type]:new()

classes/mpc/widget.lua

@@ -1,4 +1,5 @@
 local P = {}
+P.__index = P
 
 function P:update(args)
 	if (args.error ~= nil) then
@@ -28,7 +29,6 @@ end
 function P:new()
 	local widget = {}
 	setmetatable(widget, self)
-	self.__index = self
 
 	widget.title = wibox.widget.textbox("MPD is not")
 	widget.title.valign = "center"

classes/volume/arc_widget.lua

@@ -1,4 +1,5 @@
 local P = {}
+P.__index = P
 
 function P:set_value(value)
 	-- Set widget value. (0 - 100)
@@ -34,7 +35,6 @@ end
 function P:new()
 	local widget = {}
 	setmetatable(widget, self)
-	self.__index = self
 
 	widget.icon = wibox.widget {
 		resize = true,

classes/volume/bar_widget.lua

@@ -1,4 +1,5 @@
 local P = {}
+P.__index = P
 
 function P:set_value(value)
 	-- Set widget value. (0 - 100)
@@ -24,7 +25,6 @@ end
 function P:new()
 	local widget = {}
 	setmetatable(widget, self)
-	self.__index = self
 
 	widget.bar = wibox.widget {
 		max_value = 100,

classes/volume/volume.lua

@@ -6,6 +6,7 @@ local widget_types = {
 local P = {
 	name = "volume"
 }
+P.__index = P
 
 ---
 -- Internal methods
@@ -198,7 +199,6 @@ function P:new(args)
 	)
 
 	setmetatable(v, self)
-	self.__index = self
 
 	-- This timer keeps mute and volume status up-to-date.
 	v.timer = gears.timer {