bat upd

1 files changed, 9 insertions, 2 deletions

diff --git a/widgets/battery.lua b/widgets/battery.lua
index 83a7fd0..873f1ba 100644
--- a/widgets/battery.lua
+++ b/widgets/battery.lua
@@ -2,7 +2,7 @@ local awful = require("awful")
 local wibox = require("wibox")
 local naughty = require("naughty")
 
--- tooltip function
+-- tooltip text function
 local tooltip_text_format = [[
 <b>%s (%s)</b>
 Status:         %s
@@ -16,18 +16,22 @@ Technology:     %s
 Manufacturer:   %s
 Serial Number:  %s
 ]]
+
 function bat_uevents()
 	-- TODO io.popen will stop execution
 	local uevents = io.popen("ls /sys/class/power_supply/*/uevent")
 	local text = ""
+	-- loop over uevent files
 	for uevent in uevents:lines() do
 		local ueventf = io.open(uevent)
-		local ueventc = ueventf:read('a') --:gmatch("%d+")
+		local ueventc = ueventf:read('a')
 		ueventf:close()
+		-- get attributes
 		local a = {}
 		for k, v in ueventc:gmatch("POWER_SUPPLY_(.-)=%s*(.-)\n") do
 			a[k] = v
 		end
+		-- add to tooltip text
 		if a.TYPE == "Battery" then
 			local capacity = a.ENERGY_NOW * 100 / a.ENERGY_FULL
 			local health = a.ENERGY_FULL * 100 / a.ENERGY_FULL_DESIGN
@@ -50,6 +54,9 @@ function bat_uevents()
 		end
 	end
 	uevents:close()
+	if text == "" then
+		return "No Batteries Installed"
+	end
 	return text
 end