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quake: let border width be configurable
[etc/awesome.git] / widgets / pulsebar.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 local read_pipe    = require("lain.helpers").read_pipe
12
13 local awful        = require("awful")
14 local beautiful    = require("beautiful")
15 local naughty      = require("naughty")
16
17 local math         = { modf   = math.modf }
18 local mouse        = mouse
19 local string       = { format = string.format,
20                        match  = string.match,
21                        rep    = string.rep }
22 local tonumber     = tonumber
23
24 local setmetatable = setmetatable
25
26 -- ALSA volume bar
27 -- lain.widgets.pulsebar
28 local pulsebar = {
29     sink = 0,
30
31     colors = {
32         background = beautiful.bg_normal,
33         mute       = "#EB8F8F",
34         unmute     = "#A4CE8A"
35     },
36
37     mixer = "pavucontrol",
38
39     notifications = {
40         font      = beautiful.font:sub(beautiful.font:find(""), beautiful.font:find(" ")),
41         font_size = "11",
42         color     = beautiful.fg_normal,
43         bar_size  = 18,
44         screen    = 1
45     },
46
47     _current_level = 0,
48     _muted         = false
49 }
50
51 function pulsebar.notify()
52     pulsebar.update()
53
54     local preset = {
55         title   = "",
56         text    = "",
57         timeout = 5,
58         screen  = pulsebar.notifications.screen,
59         font    = pulsebar.notifications.font .. " " ..
60                   pulsebar.notifications.font_size,
61         fg      = pulsebar.notifications.color
62     }
63
64     if pulsebar._muted
65     then
66         preset.title = "Sink " .. pulsebar.sink .. " - Muted"
67     else
68         preset.title = "Sink " .. pulsebar.sink .. " - " .. pulsebar._current_level .. "%"
69     end
70
71     int = math.modf((pulsebar._current_level / 100) * pulsebar.notifications.bar_size)
72     preset.text = "["
73                 .. string.rep("|", int)
74                 .. string.rep(" ", pulsebar.notifications.bar_size - int)
75                 .. "]"
76
77     if pulsebar.followmouse then
78         preset.screen = mouse.screen
79     end
80
81     if pulsebar._notify ~= nil then
82         pulsebar._notify = naughty.notify ({
83             replaces_id = pulsebar._notify.id,
84             preset      = preset,
85         })
86     else
87         pulsebar._notify = naughty.notify ({
88             preset = preset,
89         })
90     end
91 end
92
93 local function worker(args)
94     local args       = args or {}
95     local timeout    = args.timeout or 5
96     local settings   = args.settings or function() end
97     local width      = args.width or 63
98     local height     = args.heigth or 1
99     local ticks      = args.ticks or false
100     local ticks_size = args.ticks_size or 7
101     local vertical   = args.vertical or false
102     local scallback  = args.scallback
103
104     pulsebar.cmd           = args.cmd or string.format("pacmd list-sinks | sed -n -e '0,/*/d' -e '/base volume/d' -e '/volume:/p' -e '/muted:/p'")
105     pulsebar.colors        = args.colors or pulsebar.colors
106     pulsebar.notifications = args.notifications or pulsebar.notifications
107     pulsebar.sink          = args.sink or 0
108     pulsebar.followmouse   = args.followmouse or false
109
110     pulsebar.bar = awful.widget.progressbar()
111
112     pulsebar.bar:set_background_color(pulsebar.colors.background)
113     pulsebar.bar:set_color(pulsebar.colors.unmute)
114     pulsebar.tooltip = awful.tooltip({ objects = { pulsebar.bar } })
115     pulsebar.bar:set_width(width)
116     pulsebar.bar:set_height(height)
117     pulsebar.bar:set_ticks(ticks)
118     pulsebar.bar:set_ticks_size(ticks_size)
119     pulsebar.bar:set_vertical(vertical)
120
121     function pulsebar.update()
122         if scallback then pulseaudio.cmd = scallback() end
123         local s = read_pipe(pulsebar.cmd)
124
125         volume_now = {}
126         volume_now.left  = tonumber(string.match(s, ":.-(%d+)%%"))
127         volume_now.right = tonumber(string.match(s, ":.-(%d+)%%"))
128         volume_now.muted = string.match(s, "muted: (%S+)")
129
130         local volu = volume_now.left
131         local mute = volume_now.muted
132
133         if (volu and volu ~= pulsebar._current_level) or (mute and mute ~= pulsebar._muted)
134         then
135             pulsebar._current_level = volu
136             pulsebar.bar:set_value(pulsebar._current_level / 100)
137             if not mute and volu == 0 or mute == "yes"
138             then
139                 pulsebar._muted = true
140                 pulsebar.tooltip:set_text (" [Muted] ")
141                 pulsebar.bar:set_color(pulsebar.colors.mute)
142             else
143                 pulsebar._muted = false
144                 pulsebar.tooltip:set_text(string.format(" %s:%s ", pulsebar.sink, volu))
145                 pulsebar.bar:set_color(pulsebar.colors.unmute)
146             end
147             settings()
148         end
149     end
150
151     pulsebar.bar:buttons (awful.util.table.join (
152           awful.button ({}, 1, function()
153             awful.util.spawn(pulsebar.mixer)
154           end)
155     ))
156
157     timer_id = string.format("pulsebar-%s", pulsebar.sink)
158
159     newtimer(timer_id, timeout, pulsebar.update)
160
161     return pulsebar
162 end
163
164 return setmetatable(pulsebar, { __call = function(_, ...) return worker(...) end })