lain/widget/alsa.lua

60 lines
1.6 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2013, Luca CPZ
* (c) 2010, Adrian C. <anrxc@sysphere.org>
--]]
local requirePrefix = tostring(...):match(".*lain") or ""
if requirePrefix then
requirePrefix = requirePrefix .. "."
end
local helpers = require(requirePrefix .. "helpers")
local shell = require("awful.util").shell
local wibox = require("wibox")
local string = string
-- ALSA volume
-- lain.widget.alsa
local function factory(args)
args = args or {}
local alsa = { widget = args.widget or wibox.widget.textbox() }
local timeout = args.timeout or 5
local settings = args.settings or function() end
alsa.cmd = args.cmd or "amixer"
alsa.channel = args.channel or "Master"
alsa.togglechannel = args.togglechannel
local format_cmd = string.format("%s get %s", alsa.cmd, alsa.channel)
if alsa.togglechannel then
format_cmd = { shell, "-c", string.format("%s get %s; %s get %s",
alsa.cmd, alsa.channel, alsa.cmd, alsa.togglechannel) }
end
alsa.last = {}
function alsa.update()
helpers.async(format_cmd, function(mixer)
local l,s = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
l = tonumber(l)
if alsa.last.level ~= l or alsa.last.status ~= s then
volume_now = { level = l, status = s }
widget = alsa.widget
settings()
alsa.last = volume_now
end
end)
end
helpers.newtimer(string.format("alsa-%s-%s", alsa.cmd, alsa.channel), timeout, alsa.update)
return alsa
end
return factory