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Merge pull request #245 from brucec5/master
[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     step = "1%",
31
32     colors = {
33         background = beautiful.bg_normal,
34         mute       = "#EB8F8F",
35         unmute     = "#A4CE8A"
36     },
37
38     mixer = "pavucontrol",
39
40     notifications = {
41         font      = beautiful.font:sub(beautiful.font:find(""), beautiful.font:find(" ")),
42         font_size = "11",
43         color     = beautiful.fg_normal,
44         bar_size  = 18,
45         screen    = 1
46     },
47
48     _current_level = 0,
49     _muted         = false
50 }
51
52 function pulsebar.notify()
53     pulsebar.update()
54
55     local preset = {
56         title   = "",
57         text    = "",
58         timeout = 5,
59         screen  = pulsebar.notifications.screen,
60         font    = pulsebar.notifications.font .. " " ..
61                   pulsebar.notifications.font_size,
62         fg      = pulsebar.notifications.color
63     }
64
65     if pulsebar._muted
66     then
67         preset.title = "Sink " .. pulsebar.sink .. " - Muted"
68     else
69         preset.title = "Sink " .. pulsebar.sink .. " - " .. pulsebar._current_level .. "%"
70     end
71
72     int = math.modf((pulsebar._current_level / 100) * pulsebar.notifications.bar_size)
73     preset.text = "["
74                 .. string.rep("|", int)
75                 .. string.rep(" ", pulsebar.notifications.bar_size - int)
76                 .. "]"
77
78     if pulsebar.followmouse then
79         preset.screen = mouse.screen
80     end
81
82     if pulsebar._notify ~= nil then
83         pulsebar._notify = naughty.notify ({
84             replaces_id = pulsebar._notify.id,
85             preset      = preset,
86         })
87     else
88         pulsebar._notify = naughty.notify ({
89             preset = preset,
90         })
91     end
92 end
93
94 local function worker(args)
95     local args       = args or {}
96     local timeout    = args.timeout or 5
97     local settings   = args.settings or function() end
98     local width      = args.width or 63
99     local height     = args.heigth or 1
100     local ticks      = args.ticks or false
101     local ticks_size = args.ticks_size or 7
102     local vertical   = args.vertical or false
103     local scallback  = args.scallback
104
105     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'")
106     pulsebar.colors        = args.colors or pulsebar.colors
107     pulsebar.notifications = args.notifications or pulsebar.notifications
108     pulsebar.sink          = args.sink or 0
109     pulsebar.step          = args.step or pulsebar.step
110     pulsebar.followmouse   = args.followmouse or false
111
112     pulsebar.bar = awful.widget.progressbar()
113
114     pulsebar.bar:set_background_color(pulsebar.colors.background)
115     pulsebar.bar:set_color(pulsebar.colors.unmute)
116     pulsebar.tooltip = awful.tooltip({ objects = { pulsebar.bar } })
117     pulsebar.bar:set_width(width)
118     pulsebar.bar:set_height(height)
119     pulsebar.bar:set_ticks(ticks)
120     pulsebar.bar:set_ticks_size(ticks_size)
121     pulsebar.bar:set_vertical(vertical)
122
123     function pulsebar.update()
124         if scallback then pulseaudio.cmd = scallback() end
125         local s = read_pipe(pulsebar.cmd)
126
127         volume_now = {}
128         volume_now.left  = tonumber(string.match(s, ":.-(%d+)%%"))
129         volume_now.right = tonumber(string.match(s, ":.-(%d+)%%"))
130         volume_now.muted = string.match(s, "muted: (%S+)")
131
132         local volu = volume_now.left
133         local mute = volume_now.muted
134
135         if (volu and volu ~= pulsebar._current_level) or (mute and mute ~= pulsebar._muted)
136         then
137             pulsebar._current_level = volu
138             pulsebar.bar:set_value(pulsebar._current_level / 100)
139             if not mute and volu == 0 or mute == "yes"
140             then
141                 pulsebar._muted = true
142                 pulsebar.tooltip:set_text (" [Muted] ")
143                 pulsebar.bar:set_color(pulsebar.colors.mute)
144             else
145                 pulsebar._muted = false
146                 pulsebar.tooltip:set_text(string.format(" %s:%s ", pulsebar.sink, volu))
147                 pulsebar.bar:set_color(pulsebar.colors.unmute)
148             end
149             settings()
150         end
151     end
152
153     pulsebar.bar:buttons(awful.util.table.join (
154           awful.button({}, 1, function()
155             awful.util.spawn(pulsebar.mixer)
156           end),
157           awful.button({}, 2, function()
158                                                 awful.util.spawn(string.format("pactl set-sink-volume %d 100%%", pulsebar.sink))
159             pulsebar.update()
160           end),
161           awful.button({}, 3, function()
162                                                 awful.util.spawn(string.format("pactl set-sink-mute %d toggle", pulsebar.sink))
163             pulsebar.update()
164           end),
165           awful.button({}, 4, function()
166                                                 awful.util.spawn(string.format("pactl set-sink-volume %d +%s", pulsebar.sink, pulsebar.step))
167             pulsebar.update()
168           end),
169           awful.button({}, 5, function()
170                                                 awful.util.spawn(string.format("pactl set-sink-volume %d -%s", pulsebar.sink, pulsebar.step))
171             pulsebar.update()
172                                         end)
173     ))
174
175     timer_id = string.format("pulsebar-%s", pulsebar.sink)
176
177     newtimer(timer_id, timeout, pulsebar.update)
178
179     return pulsebar
180 end
181
182 return setmetatable(pulsebar, { __call = function(_, ...) return worker(...) end })