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

weather.forecast_update: forgot to add check on err
[etc/awesome.git] / widgets / alsabar.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6       * (c) 2013, Rman                            
7                                                   
8 --]]
9
10 local newtimer     = require("lain.helpers").newtimer
11
12 local awful        = require("awful")
13 local beautiful    = require("beautiful")
14 local naughty      = require("naughty")
15
16 local io           = { popen  = io.popen }
17 local math         = { modf   = math.modf }
18 local string       = { format = string.format,
19                        match  = string.match,
20                        rep    = string.rep }
21 local tonumber     = tonumber
22
23 local setmetatable = setmetatable
24
25 -- ALSA volume bar
26 -- lain.widgets.alsabar
27 local alsabar = {
28     card    = "0",
29     channel = "Master",
30     step    = "2%",
31
32     colors = {
33         background = beautiful.bg_normal,
34         mute       = "#EB8F8F",
35         unmute     = "#A4CE8A"
36     },
37
38     terminal = terminal or "xterm",
39     mixer    = terminal .. " -e alsamixer",
40
41     notifications = {
42         font      = beautiful.font:sub(beautiful.font:find(""), beautiful.font:find(" ")),
43         font_size = "11",
44         color     = beautiful.fg_normal,
45         bar_size  = 18,
46         screen    = 1
47     },
48
49     _current_level = 0,
50     _muted         = false
51 }
52
53 function alsabar.notify()
54     alsabar.update()
55
56     local preset = {
57         title   = "",
58         text    = "",
59         timeout = 4,
60         screen  = alsabar.notifications.screen,
61         font    = alsabar.notifications.font .. " " ..
62                   alsabar.notifications.font_size,
63         fg      = alsabar.notifications.color
64     }
65
66     if alsabar._muted
67     then
68         preset.title = alsabar.channel .. " - Muted"
69     else
70         preset.title = alsabar.channel .. " - " .. alsabar._current_level .. "%"
71     end
72
73     int = math.modf((alsabar._current_level / 100) * alsabar.notifications.bar_size)
74     preset.text = "["
75                 .. string.rep("|", int)
76                 .. string.rep(" ", alsabar.notifications.bar_size - int)
77                 .. "]"
78
79     if alsabar._notify ~= nil then
80         alsabar._notify = naughty.notify ({
81             replaces_id = alsabar._notify.id,
82             preset      = preset,
83         })
84     else
85         alsabar._notify = naughty.notify ({
86             preset = preset,
87         })
88     end
89 end
90
91 local function worker(args)
92     local args       = args or {}
93     local timeout    = args.timeout or 4
94     local settings   = args.settings or function() end
95     local width      = args.width or 63
96     local height     = args.heigth or 1
97     local ticks      = args.ticks or false
98     local ticks_size = args.ticks_size or 7
99     local vertical   = args.vertical or false
100
101     alsabar.cmd           = args.cmd or "amixer"
102     alsabar.channel       = args.channel or alsabar.channel
103     alsabar.step          = args.step or alsabar.step
104     alsabar.colors        = args.colors or alsabar.colors
105     alsabar.notifications = args.notifications or alsabar.notifications
106
107     alsabar.bar = awful.widget.progressbar()
108
109     alsabar.bar:set_background_color(alsabar.colors.background)
110     alsabar.bar:set_color(alsabar.colors.unmute)
111     alsabar.tooltip = awful.tooltip({ objects = { alsabar.bar } })
112     alsabar.bar:set_width(width)
113     alsabar.bar:set_height(height)
114     alsabar.bar:set_ticks(ticks)
115     alsabar.bar:set_ticks_size(ticks_size)
116     alsabar.bar:set_vertical(vertical)
117
118     function alsabar.update()
119         -- Get mixer control contents
120         local f = assert(io.popen(string.format("%s get %s", alsabar.cmd, alsabar.channel)))
121         local mixer = f:read("*a")
122         f:close()
123
124         -- Capture mixer control state:          [5%] ... ... [on]
125         local volu, mute = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
126
127         if volu == nil then
128             volu = 0
129             mute = "off"
130         end
131
132         alsabar._current_level = tonumber(volu)
133         alsabar.bar:set_value(alsabar._current_level / 100)
134         if not mute and tonumber(volu) == 0 or mute == "off"
135         then
136             alsabar._muted = true
137             alsabar.tooltip:set_text (" [Muted] ")
138             alsabar.bar:set_color(alsabar.colors.mute)
139         else
140             alsabar._muted = false
141             alsabar.tooltip:set_text(string.format(" %s:%s ", alsabar.channel, volu))
142             alsabar.bar:set_color(alsabar.colors.unmute)
143         end
144
145         volume_now = {}
146         volume_now.level = tonumber(volu)
147         volume_now.status = mute
148         settings()
149     end
150
151     newtimer("alsabar", timeout, alsabar.update)
152
153     alsabar.bar:buttons (awful.util.table.join (
154           awful.button ({}, 1, function()
155             awful.util.spawn(alsabar.mixer)
156           end),
157           awful.button ({}, 3, function()
158             awful.util.spawn(string.format("amixer -c %s set %s toggle", alsabar.card, alsabar.channel))
159             alsabar.update()
160           end),
161           awful.button ({}, 4, function()
162             awful.util.spawn(string.format("amixer -c %s set %s %s+", alsabar.card, alsabar.channel, alsabar.step))
163             alsabar.update()
164           end),
165           awful.button ({}, 5, function()
166             awful.util.spawn(string.format("amixer -c %s set %s %s-", alsabar.card, alsabar.channel, alsabar.step))
167             alsabar.update()
168           end)
169     ))
170
171     return alsabar
172 end
173
174 return setmetatable(alsabar, { __call = function(_, ...) return worker(...) end })