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#315: removed vertical arg from {alsa,pulse}bar
[etc/awesome.git] / widget / 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 helpers      = require("lain.helpers")
11 local awful        = require("awful")
12 local naughty      = require("naughty")
13 local wibox        = require("wibox")
14 local math         = { modf   = math.modf }
15 local string       = { format = string.format,
16                        match  = string.match,
17                        rep    = string.rep }
18 local type         = type
19 local tonumber     = tonumber
20 local setmetatable = setmetatable
21
22 -- ALSA volume bar
23 -- lain.widget.alsabar
24 local alsabar = {
25     colors = {
26         background = "#000000",
27         mute       = "#EB8F8F",
28         unmute     = "#A4CE8A"
29     },
30
31     _current_level = 0,
32     _muted         = false
33 }
34
35 local function factory(args)
36     local args       = args or {}
37     local timeout    = args.timeout or 5
38     local settings   = args.settings or function() end
39     local width      = args.width or 63
40     local height     = args.height or 1
41     local ticks      = args.ticks or false
42     local ticks_size = args.ticks_size or 7
43
44     alsabar.cmd                 = args.cmd or "amixer"
45     alsabar.channel             = args.channel or "Master"
46     alsabar.togglechannel       = args.togglechannel
47     alsabar.colors              = args.colors or alsabar.colors
48     alsabar.followtag           = args.followtag or false
49     alsabar.notification_preset = args.notification_preset
50
51     if not alsabar.notification_preset then
52         alsabar.notification_preset      = {}
53         alsabar.notification_preset.font = "Monospace 10"
54     end
55
56     local format_cmd = string.format("%s get %s", alsabar.cmd, alsabar.channel)
57
58     if alsabar.togglechannel then
59         format_cmd = { awful.util.shell, "-c", string.format("%s get %s; %s get %s",
60         alsabar.cmd, alsabar.channel, alsabar.cmd, alsabar.togglechannel) }
61     end
62
63     alsabar.bar = wibox.widget {
64         forced_height    = height,
65         forced_width     = width,
66         color            = alsabar.colors.unmute,
67         background_color = alsabar.colors.background,
68         margins          = 1,
69         paddings         = 1,
70         ticks            = ticks,
71         ticks_size       = ticks_size,
72         widget           = wibox.widget.progressbar
73     }
74
75     alsabar.tooltip = awful.tooltip({ objects = { alsabar.bar } })
76
77     function alsabar.update(callback)
78         helpers.async(format_cmd, function(mixer)
79             local volu,mute = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
80             if (volu and tonumber(volu) ~= alsabar._current_level) or (mute and string.match(mute, "on") ~= alsabar._muted) then
81                 alsabar._current_level = tonumber(volu) or alsabar._current_level
82                 alsabar.bar:set_value(alsabar._current_level / 100)
83                 if (not mute and tonumber(volu) == 0) or mute == "off" then
84                     alsabar._muted = true
85                     alsabar.tooltip:set_text ("[Muted]")
86                     alsabar.bar.color = alsabar.colors.mute
87                 else
88                     alsabar._muted = false
89                     alsabar.tooltip:set_text(string.format("%s: %s", alsabar.channel, volu))
90                     alsabar.bar.color = alsabar.colors.unmute
91                 end
92
93                 volume_now = {}
94                 volume_now.level = tonumber(volu)
95                 volume_now.status = mute
96
97                 settings()
98
99                 if type(callback) == "function" then callback() end
100             end
101         end)
102     end
103
104     function alsabar.notify()
105         alsabar.update(function()
106             local preset = alsabar.notification_preset
107
108             if alsabar._muted then
109                 preset.title = string.format("%s - Muted", alsabar.channel)
110             else
111                 preset.title = string.format("%s - %s%%", alsabar.channel, alsabar._current_level)
112             end
113
114             int = math.modf((alsabar._current_level / 100) * awful.screen.focused().mywibox.height)
115             preset.text = string.format("[%s%s]", string.rep("|", int),
116                           string.rep(" ", awful.screen.focused().mywibox.height - int))
117
118             if alsabar.followtag then preset.screen = awful.screen.focused() end
119
120             if not alsabar.notification then
121                 alsabar.notification = naughty.notify {
122                     preset  = preset,
123                     destroy = function() alsabar.notification = nil end
124                 }
125             else
126                 naughty.replace_text(alsabar.notification, preset.title, preset.text)
127             end
128         end)
129     end
130
131     helpers.newtimer(string.format("alsabar-%s-%s", alsabar.cmd, alsabar.channel), timeout, alsabar.update)
132
133     return alsabar
134 end
135
136 return setmetatable(alsabar, { __call = function(_, ...) return factory(...) end })