]> git.madduck.net Git - etc/awesome.git/blob - widget/alsa.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

Merge pull request #391 from aajjbb/fix-rockspec
[etc/awesome.git] / widget / alsa.lua
1 --[[
2
3      Licensed under GNU General Public License v2
4       * (c) 2013, Luca CPZ
5       * (c) 2010, Adrian C. <anrxc@sysphere.org>
6
7 --]]
8
9 local helpers = require("lain.helpers")
10 local shell   = require("awful.util").shell
11 local wibox   = require("wibox")
12 local string  = { match  = string.match,
13                   format = string.format }
14
15 -- ALSA volume
16 -- lain.widget.alsa
17
18 local function factory(args)
19     local alsa     = { widget = wibox.widget.textbox() }
20     local args     = args or {}
21     local timeout  = args.timeout or 5
22     local settings = args.settings or function() end
23
24     alsa.cmd           = args.cmd or "amixer"
25     alsa.channel       = args.channel or "Master"
26     alsa.togglechannel = args.togglechannel
27
28     local format_cmd = string.format("%s get %s", alsa.cmd, alsa.channel)
29
30     if alsa.togglechannel then
31         format_cmd = { shell, "-c", string.format("%s get %s; %s get %s",
32         alsa.cmd, alsa.channel, alsa.cmd, alsa.togglechannel) }
33     end
34
35     alsa.last = {}
36
37     function alsa.update()
38         helpers.async(format_cmd, function(mixer)
39             local l,s = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
40             if alsa.last.level ~= l or alsa.last.status ~= s then
41                 volume_now = { level = l, status = s }
42                 widget = alsa.widget
43                 settings()
44                 alsa.last = volume_now
45             end
46         end)
47     end
48
49     helpers.newtimer(string.format("alsa-%s-%s", alsa.cmd, alsa.channel), timeout, alsa.update)
50
51     return alsa
52 end
53
54 return factory