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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
-------------------------------------------------
local awful = require("awful")
local naughty = require("naughty")
local watch = require("awful.widget.watch")
local wibox = require("wibox")
local gfs = require("gears.filesystem")
local dpi = require('beautiful').xresources.apply_dpi
-- acpi sample outputs
-- Battery 0: Discharging, 75%, 01:51:38 remaining
-- Battery 0: Charging, 53%, 00:57:43 until charged
local HOME = os.getenv("HOME")
local WIDGET_DIR = HOME .. '/.config/awesome/awesome-wm-widgets/battery-widget'
local battery_widget = {}
local function worker(user_args)
local args = user_args or {}
local font = args.font or 'Play 8'
local path_to_icons = args.path_to_icons or "/usr/share/icons/Arc/status/symbolic/"
local show_current_level = args.show_current_level or false
local margin_left = args.margin_left or 0
local margin_right = args.margin_right or 0
local display_notification = args.display_notification or false
local display_notification_onClick = args.display_notification_onClick or true
local position = args.notification_position or "top_right"
local timeout = args.timeout or 10
local warning_msg_title = args.warning_msg_title or 'Huston, we have a problem'
local warning_msg_text = args.warning_msg_text or 'Battery is dying'
local warning_msg_position = args.warning_msg_position or 'bottom_right'
local warning_msg_icon = args.warning_msg_icon or WIDGET_DIR .. '/spaceman.jpg'
local enable_battery_warning = args.enable_battery_warning
if enable_battery_warning == nil then
enable_battery_warning = true
end
if not gfs.dir_readable(path_to_icons) then
naughty.notify{
title = "Battery Widget",
text = "Folder with icons doesn't exist: " .. path_to_icons,
preset = naughty.config.presets.critical
}
end
local icon_widget = wibox.widget {
{
id = "icon",
widget = wibox.widget.imagebox,
resize = false
},
valign = 'center',
layout = wibox.container.place,
}
local level_widget = wibox.widget {
font = font,
widget = wibox.widget.textbox
}
battery_widget = wibox.widget {
icon_widget,
level_widget,
layout = wibox.layout.fixed.horizontal,
}
-- Popup with battery info
-- One way of creating a pop-up notification - naughty.notify
local notification
local function show_battery_status(batteryType)
awful.spawn.easy_async([[bash -c 'acpi']],
function(stdout, _, _, _)
naughty.destroy(notification)
notification = naughty.notify{
text = stdout,
title = "Battery status",
icon = path_to_icons .. batteryType .. ".svg",
icon_size = dpi(16),
position = position,
timeout = 5, hover_timeout = 0.5,
width = 200,
screen = mouse.screen
}
end
)
end
-- Alternative to naughty.notify - tooltip. You can compare both and choose the preferred one
--battery_popup = awful.tooltip({objects = {battery_widget}})
-- To use colors from beautiful theme put
-- following lines in rc.lua before require("battery"):
-- beautiful.tooltip_fg = beautiful.fg_normal
-- beautiful.tooltip_bg = beautiful.bg_normal
local function show_battery_warning()
naughty.notify {
icon = warning_msg_icon,
icon_size = 100,
text = warning_msg_text,
title = warning_msg_title,
timeout = 25, -- show the warning for a longer time
hover_timeout = 0.5,
position = warning_msg_position,
bg = "#F06060",
fg = "#EEE9EF",
width = 300,
screen = mouse.screen
}
end
local last_battery_check = os.time()
local batteryType = "battery-good-symbolic"
watch("acpi -i", timeout,
function(widget, stdout)
local battery_info = {}
local capacities = {}
for s in stdout:gmatch("[^\r\n]+") do
local status, charge_str, _ = string.match(s, '.+: ([%a%s]+), (%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 capacities[i] ~= nil then
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
end
charge = charge / capacity
if show_current_level then
level_widget.text = string.format('%d%%', charge)
end
if (charge >= 1 and charge < 15) then
batteryType = "battery-empty%s-symbolic"
if enable_battery_warning and status ~= 'Charging' and os.difftime(os.time(), last_battery_check) > 300 then
-- if 5 minutes have elapsed since the last warning
last_battery_check = os.time()
show_battery_warning()
end
elseif (charge >= 15 and charge < 40) then batteryType = "battery-caution%s-symbolic"
elseif (charge >= 40 and charge < 60) then batteryType = "battery-low%s-symbolic"
elseif (charge >= 60 and charge < 80) then batteryType = "battery-good%s-symbolic"
elseif (charge >= 80 and charge <= 100) then batteryType = "battery-full%s-symbolic"
end
if status == 'Charging' then
batteryType = string.format(batteryType, '-charging')
else
batteryType = string.format(batteryType, '')
end
widget.icon:set_image(path_to_icons .. batteryType .. ".svg")
-- Update popup text
-- battery_popup.text = string.gsub(stdout, "\n$", "")
end,
icon_widget)
if display_notification then
battery_widget:connect_signal("mouse::enter", function() show_battery_status(batteryType) end)
battery_widget:connect_signal("mouse::leave", function() naughty.destroy(notification) end)
elseif display_notification_onClick then
battery_widget:connect_signal("button::press", function(_,_,_,button)
if (button == 3) then show_battery_status(batteryType) end
end)
battery_widget:connect_signal("mouse::leave", function() naughty.destroy(notification) end)
end
return wibox.container.margin(battery_widget, margin_left, margin_right)
end
return setmetatable(battery_widget, { __call = function(_, ...) return worker(...) end })
|
