Possible fix for memory leak issue #11

battery-widget/battery.lua

@@ -49,12 +49,13 @@ watch(
         else
             batteryType = string.format(batteryType,'')
         end
-        battery_widget.image = path_to_icons .. batteryType .. ".svg"
+        widget.image = path_to_icons .. batteryType .. ".svg"
 
         -- Update popup text
         -- TODO: Filter long lines
         battery_popup.text = string.gsub(stdout, "\n$", "")
-    end
+    end,
+    battery_widget
 )
 
 -- Alternative to tooltip - popup message shown by naughty library. You can compare both and choose the preferred one

brightness-widget/brightness.lua

@@ -19,6 +19,7 @@ watch(
     "xbacklight -get", 1,
     function(widget, stdout, stderr, exitreason, exitcode)
         local brightness_level = tonumber(string.format("%.0f", stdout))
-        brightness_widget:set_text(brightness_level)
+        widget:set_text(brightness_level)
-    end
+    end,
+    brightness_widget
 )

volume-widget/volume.lua

@@ -44,6 +44,7 @@ watch(
 		elseif (volume >= 50 and volume < 75) then volume_icon_name="audio-volume-medium-symbolic"
 		elseif (volume >= 75 and volume <= 100) then volume_icon_name="audio-volume-high-symbolic"
 		end
-        volume_widget.image = path_to_icons .. volume_icon_name .. ".svg"
+        widget.image = path_to_icons .. volume_icon_name .. ".svg"
-    end
+    end,
+    volume_widget
 )