dotfiles/awesome/widgets/battery.lua

145 lines
4.9 KiB
Lua

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-------------------------------------------------
-- Battery Widget for Awesome Window Manager
-- Shows the battery status using the ACPI tool
-- More details could be found here:
-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/battery-widget
-- @author Pavel Makhov
-- @copyright 2017 Pavel Makhov
-------------------------------------------------
-- ===================================================================
-- Initialization
-- ===================================================================
local awful = require("awful")
local watch = require("awful.widget.watch")
local wibox = require("wibox")
local clickable_container = require("widgets.clickable-container")
local gears = require("gears")
local dpi = require("beautiful").xresources.apply_dpi
local PATH_TO_ICONS = os.getenv("HOME") .. "/.config/awesome/icons/battery/"
-- ===================================================================
-- Widget Creation
-- ===================================================================
local widget = wibox.widget {
{
id = "icon",
widget = wibox.widget.imagebox,
resize = true
},
layout = wibox.layout.fixed.horizontal
}
local widget_button = clickable_container(wibox.container.margin(widget, dpi(7), dpi(7), dpi(7), dpi(7)))
widget_button:buttons(
gears.table.join(
awful.button({}, 1, nil,
function()
awful.spawn(apps.power_manager)
end
)
)
)
-- Alternative to naughty.notify - tooltip. You can compare both and choose the preferred one
local battery_popup = awful.tooltip({
objects = {widget_button},
mode = "outside",
align = "left",
referred_positions = {"right", "left", "top", "bottom"}
})
local function show_battery_warning()
naughty.notify {
icon = PATH_TO_ICONS .. "battery-alert.svg",
icon_size = dpi(48),
text = "Huston, we have a problem",
title = "Battery is dying",
timeout = 5,
hover_timeout = 0.5,
position = "top_right",
bg = "#d32f2f",
fg = "#EEE9EF",
width = 248
}
end
local last_battery_check = os.time()
watch("acpi -i", 1,
function(_, stdout)
local battery_info = {}
local capacities = {}
for s in stdout:gmatch("[^\r\n]+") do
local status, charge_str, time = string.match(s, ".+: (%a+), (%d?%d?%d)%%,?.*")
if status ~= nil then
table.insert(battery_info, {status = status, charge = tonumber(charge_str)})
else
local cap_str = string.match(s, ".+:.+last full capacity (%d+)")
table.insert(capacities, tonumber(cap_str))
end
end
local capacity = 0
for _, cap in ipairs(capacities) do
capacity = capacity + cap
end
local charge = 0
local status
for i, batt in ipairs(battery_info) do
if batt.charge >= charge then
status = batt.status -- use most charged battery status
-- this is arbitrary, and maybe another metric should be used
end
charge = charge + batt.charge * capacities[i]
end
charge = charge / capacity
if (charge >= 0 and charge < 15) then
if status ~= "Charging" and os.difftime(os.time(), last_battery_check) > 300 then
-- if 5 minutes have elapsed since the last warning
last_battery_check = time()
show_battery_warning()
end
end
local battery_icon_name = "battery"
if status == "Charging" or status == "Full" then
battery_icon_name = battery_icon_name .. "-charging"
end
local rounded_charge = math.floor(charge / 10) * 10
if (rounded_charge == 0) then
battery_icon_name = battery_icon_name .. "-outline"
elseif (rounded_charge ~= 100) then
battery_icon_name = battery_icon_name .. "-" .. rounded_charge
end
widget.icon:set_image(PATH_TO_ICONS .. battery_icon_name .. ".svg")
-- Update popup text
battery_popup.text = string.gsub(stdout, "\n$", "")
collectgarbage("collect")
end,
widget
)
return widget_button