--[[ Licensed under GNU General Public License v2 * (c) 2013, Luke Bonham * (c) 2010, Adrian C. --]] local helpers = require("lain.helpers") local shell = require("awful.util").shell local wibox = require("wibox") local string = { match = string.match, format = string.format } local setmetatable = setmetatable -- ALSA volume -- lain.widget.alsa local function worker(args) local alsa = { widget = wibox.widget.textbox() } local args = args or {} 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]*)") 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 setmetatable({}, { __call = function(_, ...) return worker(...) end })