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alsa, alsabar: make amixer call customizable; fixes #111 in general
[etc/awesome.git] / widgets / mpd.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6       * (c) 2010, Adrian C. <anrxc@sysphere.org>  
7                                                   
8 --]]
9
10 local helpers      = require("lain.helpers")
11 local async        = require("lain.asyncshell")
12
13 local escape_f     = require("awful.util").escape
14 local naughty      = require("naughty")
15 local wibox        = require("wibox")
16
17 local os           = { execute  = os.execute,
18                        getenv   = os.getenv }
19 local math         = { floor    = math.floor }
20 local string       = { format   = string.format,
21                        match    = string.match,
22                        gmatch   = string.gmatch }
23
24 local setmetatable = setmetatable
25
26 -- MPD infos
27 -- lain.widgets.mpd
28 local mpd = {}
29
30 local function worker(args)
31     local args        = args or {}
32     local timeout     = args.timeout or 2
33     local password    = args.password or ""
34     local host        = args.host or "127.0.0.1"
35     local port        = args.port or "6600"
36     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
37     local cover_size  = args.cover_size or 100
38     local default_art = args.default_art or ""
39     local settings    = args.settings or function() end
40
41     local mpdcover = helpers.scripts_dir .. "mpdcover"
42     local mpdh = "telnet://" .. host .. ":" .. port
43     local echo = "echo 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
44
45     mpd.widget = wibox.widget.textbox('')
46
47     mpd_notification_preset = {
48         title   = "Now playing",
49         timeout = 6
50     }
51
52     helpers.set_map("current mpd track", nil)
53
54     function mpd.update()
55         async.request(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh, function (f)
56             mpd_now = {
57                 state   = "N/A",
58                 file    = "N/A",
59                 artist  = "N/A",
60                 title   = "N/A",
61                 album   = "N/A",
62                 date    = "N/A",
63                 time    = "N/A",
64                 elapsed = "N/A"
65             }
66
67             for line in f:lines() do
68                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
69                     if     k == "state"   then mpd_now.state   = v
70                     elseif k == "file"    then mpd_now.file    = v
71                     elseif k == "Artist"  then mpd_now.artist  = escape_f(v)
72                     elseif k == "Title"   then mpd_now.title   = escape_f(v)
73                     elseif k == "Album"   then mpd_now.album   = escape_f(v)
74                     elseif k == "Date"    then mpd_now.date    = escape_f(v)
75                     elseif k == "Time"    then mpd_now.time    = v
76                     elseif k == "elapsed" then mpd_now.elapsed = string.match(v, "%d+")
77                     end
78                 end
79             end
80
81             mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
82                                            mpd_now.album, mpd_now.date, mpd_now.title)
83             widget = mpd.widget
84             settings()
85
86             if mpd_now.state == "play"
87             then
88                 if mpd_now.title ~= helpers.get_map("current mpd track")
89                 then
90                     helpers.set_map("current mpd track", mpd_now.title)
91
92                     os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
93                                mpd_now.file, cover_size, default_art))
94
95                     mpd.id = naughty.notify({
96                         preset = mpd_notification_preset,
97                         icon = "/tmp/mpdcover.png",
98                         replaces_id = mpd.id,
99                     }).id
100                 end
101             elseif mpd_now.state ~= "pause"
102             then
103                 helpers.set_map("current mpd track", nil)
104             end
105         end)
106     end
107
108     helpers.newtimer("mpd", timeout, mpd.update)
109
110     return setmetatable(mpd, { __index = mpd.widget })
111 end
112
113 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })