mirror of https://github.com/lcpz/lain.git
55 lines
1.6 KiB
Lua
55 lines
1.6 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2013, Luke Bonham
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* (c) 2010, Adrian C. <anrxc@sysphere.org>
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--]]
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local newtimer = require("lain.helpers").newtimer
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local read_pipe = require("lain.helpers").read_pipe
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local wibox = require("wibox")
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local string = { match = string.match,
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format = string.format }
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local setmetatable = setmetatable
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-- ALSA volume
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-- lain.widgets.alsa
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local alsa = { last_level = "0", last_status = "" }
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local function worker(args)
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local args = args or {}
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local timeout = args.timeout or 5
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local settings = args.settings or function() end
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alsa.cmd = args.cmd or "amixer"
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alsa.channel = args.channel or "Master"
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alsa.widget = wibox.widget.textbox('')
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function alsa.update()
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mixer = read_pipe(string.format("%s get %s", alsa.cmd, alsa.channel))
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l, s = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
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if alsa.last_level ~= l or alsa.last_status ~= s then
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volume_now = { level = l, status = s }
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alsa.last_level = l
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alsa.last_status = s
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widget = alsa.widget
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settings()
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end
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end
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timer_id = string.format("alsa-%s-%s", alsa.cmd, alsa.channel)
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newtimer(timer_id, timeout, alsa.update)
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return setmetatable(alsa, { __index = alsa.widget })
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end
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return setmetatable(alsa, { __call = function(_, ...) return worker(...) end })
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