37 lines
936 B
Lua
37 lines
936 B
Lua
----------------------------------------------------------
|
|
-- Licensed under the GNU General Public License version 2
|
|
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
|
|
----------------------------------------------------------
|
|
|
|
-- {{{ Grab environment
|
|
local io = { popen = io.popen }
|
|
local setmetatable = setmetatable
|
|
local string = { match = string.match }
|
|
-- }}}
|
|
|
|
|
|
-- Volume: provides volume levels of requested ALSA mixers
|
|
module("vicious.volume")
|
|
|
|
|
|
-- {{{ Volume widget type
|
|
local function worker(format, channel)
|
|
-- Get mixer data
|
|
local f = io.popen("amixer get " .. channel)
|
|
local mixer = f:read("*all")
|
|
f:close()
|
|
|
|
-- Get volume level
|
|
local volume_level = string.match(mixer, "([%d]?[%d]?[%d])%%")
|
|
|
|
-- Don't break progressbars
|
|
if volume_level == nil then
|
|
return {0}
|
|
end
|
|
|
|
return {volume_level}
|
|
end
|
|
-- }}}
|
|
|
|
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
|