]> git.madduck.net Git - etc/awesome.git/blob - widgets/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:

calendar: separate args from attach; closes #294
[etc/awesome.git] / widgets / alsa.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6       * (c) 2010, Adrian C. <anrxc@sysphere.org>  
7                                                   
8 --]]
9
10 local helpers      = require("lain.helpers")
11 local shell        = require("awful.util").shell
12 local wibox        = require("wibox")
13 local string       = { match  = string.match,
14                        format = string.format }
15 local setmetatable = setmetatable
16
17 -- ALSA volume
18 -- lain.widgets.alsa
19
20 local function worker(args)
21     local alsa     = { widget = wibox.widget.textbox() }
22     local args     = args or {}
23     local timeout  = args.timeout or 5
24     local settings = args.settings or function() end
25
26     alsa.cmd           = args.cmd or "amixer"
27     alsa.channel       = args.channel or "Master"
28     alsa.togglechannel = args.togglechannel
29
30     local format_cmd = string.format("%s get %s", alsa.cmd, alsa.channel)
31
32     if alsa.togglechannel then
33         format_cmd = { shell, "-c", string.format("%s get %s; %s get %s",
34         alsa.cmd, alsa.channel, alsa.cmd, alsa.togglechannel) }
35     end
36
37     alsa.last = {}
38
39     function alsa.update()
40         helpers.async(format_cmd, function(mixer)
41             local l,s = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
42             if alsa.last.level ~= l or alsa.last.status ~= s then
43                 volume_now = { level = l, status = s }
44                 widget = alsa.widget
45                 settings()
46                 alsa.last = volume_now
47             end
48         end)
49     end
50
51     helpers.newtimer(string.format("alsa-%s-%s", alsa.cmd, alsa.channel), timeout, alsa.update)
52
53     return alsa
54 end
55
56 return setmetatable({}, { __call = function(_, ...) return worker(...) end })