dotfiles/awesome/lib/lain/widget/pulse.lua

61 lines
1.5 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2016, Luca CPZ
--]]
local helpers = require('lain.helpers')
local shell = require('awful.util').shell
local wibox = require('wibox')
local string = string
local type = type
-- PulseAudio volume
-- lain.widget.pulse
local function factory(args)
args = args or {}
local pulse = { widget = args.widget or wibox.widget.textbox(), device = 'N/A' }
local timeout = args.timeout or 5
local settings = args.settings or function() end
pulse.devicetype = args.devicetype or 'sink'
pulse.cmd = args.cmd
or 'pacmd list-'
.. pulse.devicetype
.. "s | sed -n -e '/*/,$!d' -e '/index/p' -e '/base volume/d' -e '/volume:/p' -e '/muted:/p' -e '/device\\.string/p'"
function pulse.update()
helpers.async({ shell, '-c', type(pulse.cmd) == 'string' and pulse.cmd or pulse.cmd() }, function(s)
volume_now = {
index = string.match(s, 'index: (%S+)') or 'N/A',
device = string.match(s, 'device.string = "(%S+)"') or 'N/A',
muted = string.match(s, 'muted: (%S+)') or 'N/A',
}
pulse.device = volume_now.index
local ch = 1
volume_now.channel = {}
for v in string.gmatch(s, ':.-(%d+)%%') do
volume_now.channel[ch] = v
ch = ch + 1
end
volume_now.left = volume_now.channel[1] or 'N/A'
volume_now.right = volume_now.channel[2] or 'N/A'
widget = pulse.widget
settings()
end)
end
helpers.newtimer('pulse', timeout, pulse.update)
return pulse
end
return factory