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

lain.widgets -> lain.widget
[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 worker(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     local vertical   = args.vertical or false
44
45     alsabar.cmd                 = args.cmd or "amixer"
46     alsabar.channel             = args.channel or "Master"
47     alsabar.togglechannel       = args.togglechannel
48     alsabar.colors              = args.colors or alsabar.colors
49     alsabar.followtag           = args.followtag or false
50     alsabar.notification_preset = args.notification_preset
51
52     if not alsabar.notification_preset then
53         alsabar.notification_preset      = {}
54         alsabar.notification_preset.font = "Monospace 10"
55     end
56
57     local format_cmd = string.format("%s get %s", alsabar.cmd, alsabar.channel)
58
59     if alsabar.togglechannel then
60         format_cmd = { awful.util.shell, "-c", string.format("%s get %s; %s get %s",
61         alsabar.cmd, alsabar.channel, alsabar.cmd, alsabar.togglechannel) }
62     end
63
64     alsabar.bar = wibox.widget {
65         forced_height    = height,
66         forced_width     = width,
67         color            = alsabar.colors.unmute,
68         background_color = alsabar.colors.background,
69         margins          = 1,
70         paddings         = 1,
71         ticks            = ticks,
72         ticks_size       = ticks_size,
73         widget           = wibox.widget.progressbar,
74         layout           = vertical and wibox.container.rotate
75     }
76
77     alsabar.tooltip = awful.tooltip({ objects = { alsabar.bar } })
78
79     function alsabar.update(callback)
80         helpers.async(format_cmd, function(mixer)
81             local volu,mute = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
82             if (volu and tonumber(volu) ~= alsabar._current_level) or (mute and string.match(mute, "on") ~= alsabar._muted) then
83                 alsabar._current_level = tonumber(volu) or alsabar._current_level
84                 alsabar.bar:set_value(alsabar._current_level / 100)
85                 if (not mute and tonumber(volu) == 0) or mute == "off" then
86                     alsabar._muted = true
87                     alsabar.tooltip:set_text ("[Muted]")
88                     alsabar.bar.color = alsabar.colors.mute
89                 else
90                     alsabar._muted = false
91                     alsabar.tooltip:set_text(string.format("%s: %s", alsabar.channel, volu))
92                     alsabar.bar.color = alsabar.colors.unmute
93                 end
94
95                 volume_now = {}
96                 volume_now.level = tonumber(volu)
97                 volume_now.status = mute
98
99                 settings()
100
101                 if type(callback) == "function" then callback() end
102             end
103         end)
104     end
105
106     function alsabar.notify()
107         alsabar.update(function()
108             local preset = alsabar.notification_preset
109
110             if alsabar._muted then
111                 preset.title = string.format("%s - Muted", alsabar.channel)
112             else
113                 preset.title = string.format("%s - %s%%", alsabar.channel, alsabar._current_level)
114             end
115
116             int = math.modf((alsabar._current_level / 100) * awful.screen.focused().mywibox.height)
117             preset.text = string.format("[%s%s]", string.rep("|", int),
118                           string.rep(" ", awful.screen.focused().mywibox.height - int))
119
120             if alsabar.followtag then preset.screen = awful.screen.focused() end
121
122             if not alsabar.notification then
123                 alsabar.notification = naughty.notify {
124                     preset  = preset,
125                     destroy = function() alsabar.notification = nil end
126                 }
127             else
128                 naughty.replace_text(alsabar.notification, preset.title, preset.text)
129             end
130         end)
131     end
132
133     helpers.newtimer(string.format("alsabar-%s-%s", alsabar.cmd, alsabar.channel), timeout, alsabar.update)
134
135     return alsabar
136 end
137
138 return setmetatable(alsabar, { __call = function(_, ...) return worker(...) end })