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{alsa,pulse}bar updated to awesome 4.0
[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 local wibox        = require("wibox")
17
18 local math         = { modf   = math.modf }
19 local mouse        = mouse
20 local string       = { format = string.format,
21                        match  = string.match,
22                        rep    = string.rep }
23 local tonumber     = tonumber
24
25 local setmetatable = setmetatable
26
27 -- ALSA volume bar
28 -- lain.widgets.pulsebar
29 local pulsebar = {
30     sink = 0,
31     step = "1%",
32
33     colors = {
34         background = beautiful.bg_normal,
35         mute       = "#EB8F8F",
36         unmute     = "#A4CE8A"
37     },
38
39     mixer = "pavucontrol",
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 pulsebar.notify()
54     pulsebar.update()
55
56     local preset = {
57         title   = "",
58         text    = "",
59         timeout = 5,
60         screen  = pulsebar.notifications.screen,
61         font    = string.format("%s %s", alsabar.notifications.font,
62                   alsabar.notifications.font_size),
63         fg      = pulsebar.notifications.color
64     }
65
66     if pulsebar._muted
67     then
68         preset.title = string.format("Sink %s - Muted", pulsebar.sink)
69     else
70         preset.title = string.format("%s - %s%%", pulsebar.sink, pulsebar._current_level)
71     end
72
73     int = math.modf((pulsebar._current_level / 100) * pulsebar.notifications.bar_size)
74     preset.text = string.format("[%s%s]", string.rep("|", int),
75                   string.rep(" ", pulsebar.notifications.bar_size - int))
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.step          = args.step or pulsebar.step
109     pulsebar.followmouse   = args.followmouse or false
110
111     pulsebar.bar = wibox.widget {
112         forced_height    = height,
113         forced_width     = width,
114         color            = pulsebar.colors.unmute,
115         background_color = pulsebar.colors.background,
116         margins          = 1,
117         paddings         = 1,
118         ticks            = ticks,
119         ticks_size       = ticks_size,
120         widget           = wibox.widget.progressbar,
121         layout           = vertical and wibox.container.rotate
122     }
123
124     pulsebar.tooltip = awful.tooltip({ objects = { pulsebar.bar } })
125
126     function pulsebar.update()
127         if scallback then pulseaudio.cmd = scallback() end
128         local s = read_pipe(pulsebar.cmd)
129
130         volume_now = {}
131         volume_now.left  = tonumber(string.match(s, ":.-(%d+)%%"))
132         volume_now.right = tonumber(string.match(s, ":.-(%d+)%%"))
133         volume_now.muted = string.match(s, "muted: (%S+)")
134
135         local volu = volume_now.left
136         local mute = volume_now.muted
137
138         if (volu and volu ~= pulsebar._current_level) or (mute and mute ~= pulsebar._muted)
139         then
140             pulsebar._current_level = volu
141             pulsebar.bar:set_value(pulsebar._current_level / 100)
142             if (not mute and volu == 0) or mute == "yes"
143             then
144                 pulsebar._muted = true
145                 pulsebar.tooltip:set_text ("[Muted]")
146                 pulsebar.bar.color(pulsebar.colors.mute)
147             else
148                 pulsebar._muted = false
149                 pulsebar.tooltip:set_text(string.format("%s: %s", pulsebar.sink, volu))
150                 pulsebar.bar.color(pulsebar.colors.unmute)
151             end
152             settings()
153         end
154     end
155
156     pulsebar.bar:buttons(awful.util.table.join (
157           awful.button({}, 1, function()
158             awful.util.spawn(pulsebar.mixer)
159           end),
160           awful.button({}, 2, function()
161                                                 awful.util.spawn(string.format("pactl set-sink-volume %d 100%%", pulsebar.sink))
162             pulsebar.update()
163           end),
164           awful.button({}, 3, function()
165                                                 awful.util.spawn(string.format("pactl set-sink-mute %d toggle", pulsebar.sink))
166             pulsebar.update()
167           end),
168           awful.button({}, 4, function()
169                                                 awful.util.spawn(string.format("pactl set-sink-volume %d +%s", pulsebar.sink, pulsebar.step))
170             pulsebar.update()
171           end),
172           awful.button({}, 5, function()
173                                                 awful.util.spawn(string.format("pactl set-sink-volume %d -%s", pulsebar.sink, pulsebar.step))
174             pulsebar.update()
175                                         end)
176     ))
177
178     timer_id = string.format("pulsebar-%s", pulsebar.sink)
179
180     newtimer(timer_id, timeout, pulsebar.update)
181
182     return pulsebar
183 end
184
185 return setmetatable(pulsebar, { __call = function(_, ...) return worker(...) end })