battery info tooltip

1 files changed, 58 insertions, 0 deletions

diff --git a/widgets/battery.lua b/widgets/battery.lua
index f6e6860..83a7fd0 100644
--- a/widgets/battery.lua
+++ b/widgets/battery.lua
@@ -2,7 +2,65 @@ local awful = require("awful")
 local wibox = require("wibox")
 local naughty = require("naughty")
 
+-- tooltip function
+local tooltip_text_format = [[
+<b>%s (%s)</b>
+Status:         %s
+Charge:         %.1f%%
+Health:         %.1f%%
+Cycle Count:    %d
+Rated Capacity: %.0fmAh (%.1fWh)
+Voltage Min:    %.1fV
+Voltage Now:    %.1fV
+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 = ""
+	for uevent in uevents:lines() do
+		local ueventf = io.open(uevent)
+		local ueventc = ueventf:read('a') --:gmatch("%d+")
+		ueventf:close()
+		local a = {}
+		for k, v in ueventc:gmatch("POWER_SUPPLY_(.-)=%s*(.-)\n") do
+			a[k] = v
+		end
+		if a.TYPE == "Battery" then
+			local capacity = a.ENERGY_NOW * 100 / a.ENERGY_FULL
+			local health = a.ENERGY_FULL * 100 / a.ENERGY_FULL_DESIGN
+			local mah = a.ENERGY_FULL_DESIGN * 1000 / a.VOLTAGE_MIN_DESIGN
+			text = text .. tooltip_text_format:format(
+				a.NAME,
+				a.MODEL_NAME,
+				a.STATUS,
+				capacity,
+				health,
+				a.CYCLE_COUNT,
+				mah,
+				a.ENERGY_FULL_DESIGN / 1000000,
+				a.VOLTAGE_MIN_DESIGN / 1000000,
+				a.VOLTAGE_NOW / 1000000,
+				a.TECHNOLOGY,
+				a.MANUFACTURER,
+				a.SERIAL_NUMBER
+			)
+		end
+	end
+	uevents:close()
+	return text
+end
+
+-- vars
 local widget = wibox.widget.textbox()
+local tooltip = awful.tooltip {
+	objects = {widget},
+	delay_show = 1,
+	timeout = 2,
+	timer_function = bat_uevents,
+}
 
 -- update widget on lowbat output
 local lowbat_pid = awful.spawn.with_line_callback("lowbat", {