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wiki updated #254; other fixes
[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 -- Pulseaudio 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     },
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         font    = string.format("%s %s", pulsebar.notifications.font,
59                   pulsebar.notifications.font_size),
60         fg      = pulsebar.notifications.color
61     }
62
63     if pulsebar._muted
64     then
65         preset.title = string.format("Sink %s - Muted", pulsebar.sink)
66     else
67         preset.title = string.format("%s - %s%%", pulsebar.sink, pulsebar._current_level)
68     end
69
70     int = math.modf((pulsebar._current_level / 100) * awful.screen.focused().mywibox.height)
71     preset.text = string.format("[%s%s]", string.rep("|", int),
72                   string.rep(" ", awful.screen.focused().mywibox.height - int))
73
74     if pulsebar.followtag then
75         preset.screen = awful.screen.focused()
76     end
77
78     if pulsebar._notify ~= nil then
79         pulsebar._notify = naughty.notify ({
80             replaces_id = pulsebar._notify.id,
81             preset      = preset,
82         })
83     else
84         pulsebar._notify = naughty.notify ({
85             preset = preset,
86         })
87     end
88 end
89
90 local function worker(args)
91     local args       = args or {}
92     local timeout    = args.timeout or 5
93     local settings   = args.settings or function() end
94     local width      = args.width or 63
95     local height     = args.heigth or 1
96     local ticks      = args.ticks or false
97     local ticks_size = args.ticks_size or 7
98     local vertical   = args.vertical or false
99     local scallback  = args.scallback
100
101     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'")
102     pulsebar.colors        = args.colors or pulsebar.colors
103     pulsebar.notifications = args.notifications or pulsebar.notifications
104     pulsebar.sink          = args.sink or 0
105     pulsebar.step          = args.step or pulsebar.step
106     pulsebar.followtag   = args.followtag or false
107
108     pulsebar.bar = wibox.widget {
109         forced_height    = height,
110         forced_width     = width,
111         color            = pulsebar.colors.unmute,
112         background_color = pulsebar.colors.background,
113         margins          = 1,
114         paddings         = 1,
115         ticks            = ticks,
116         ticks_size       = ticks_size,
117         widget           = wibox.widget.progressbar,
118         layout           = vertical and wibox.container.rotate
119     }
120
121     pulsebar.tooltip = awful.tooltip({ objects = { pulsebar.bar } })
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.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.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 })