awesome/awesome-wm-widgets/brightness-widget/brightness.lua

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2018-11-28 15:31:35 +01:00
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-- Brightness Widget for Awesome Window Manager
-- Shows the brightness level of the laptop display
-- More details could be found here:
-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/brightness-widget
-- @author Pavel Makhov
-- @copyright 2017 Pavel Makhov
-------------------------------------------------
local wibox = require("wibox")
local watch = require("awful.widget.watch")
local spawn = require("awful.spawn")
local PATH_TO_ICON = "/usr/share/icons/Arc/status/symbolic/display-brightness-symbolic.svg"
local GET_BRIGHTNESS_CMD = "light -G" -- "xbacklight -get"
local INC_BRIGHTNESS_CMD = "light -A 1" -- "xbacklight -inc 5"
local DEC_BRIGHTNESS_CMD = "light -U 1" -- "xbacklight -dec 5"
local brightness_text = wibox.widget.textbox()
brightness_text:set_font('Play 9')
local brightness_icon = wibox.widget {
{
image = PATH_TO_ICON,
resize = false,
widget = wibox.widget.imagebox,
},
top = 3,
widget = wibox.container.margin
}
local brightness_widget = wibox.widget {
brightness_icon,
brightness_text,
layout = wibox.layout.fixed.horizontal,
}
local update_widget = function(widget, stdout, stderr, exitreason, exitcode)
local brightness_level = tonumber(string.format("%.0f", stdout))
widget:set_text(" " .. brightness_level .. "%")
end,
brightness_widget:connect_signal("button::press", function(_,_,_,button)
if (button == 4) then spawn(INC_BRIGHTNESS_CMD, false)
elseif (button == 5) then spawn(DEC_BRIGHTNESS_CMD, false)
end
spawn.easy_async(GET_BRIGHTNESS_CMD, function(stdout, stderr, exitreason, exitcode)
update_widget(brightness_widget, stdout, stderr, exitreason, exitcode)
end)
end)
watch(GET_BRIGHTNESS_CMD, 1, update_widget, brightness_text)
return brightness_widget