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wiki updated
[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
12 local escape_f     = require("awful.util").escape
13 local naughty      = require("naughty")
14 local wibox        = require("wibox")
15
16 local io           = { popen    = io.popen }
17 local os           = { execute  = os.execute,
18                        getenv   = os.getenv }
19 local string       = { format   = string.format, 
20                        gmatch   = string.gmatch }
21
22 local setmetatable = setmetatable
23
24 -- MPD infos
25 -- lain.widgets.mpd
26 local mpd = {}
27
28 local function worker(args)
29     local args        = args or {}
30     local timeout     = args.timeout or 2
31     local password    = args.password or ""
32     local host        = args.host or "127.0.0.1"
33     local port        = args.port or "6600"
34     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
35     local cover_size  = args.cover_size or 100
36     local default_art = args.default_art or ""
37     local settings    = args.settings or function() end
38
39     local mpdcover = helpers.scripts_dir .. "mpdcover"
40     local mpdh = "telnet://" .. host .. ":" .. port
41     local echo = "echo 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
42
43     mpd.widget = wibox.widget.textbox('')
44
45     mpd_notification_preset = {
46         title   = "Now playing",
47         timeout = 6
48     }
49
50     helpers.set_map("current mpd track", nil)
51
52     function mpd.update()
53         mpd_now = {
54             state  = "N/A",
55             file   = "N/A",
56             artist = "N/A",
57             title  = "N/A",
58             album  = "N/A",
59             date   = "N/A"
60         }
61
62         local f = io.popen(echo .. " | curl --connect-timeout 1 -fsm 1 " .. mpdh)
63
64         for line in f:lines() do
65             for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
66                 if     k == "state"  then mpd_now.state  = v
67                 elseif k == "file"   then mpd_now.file   = v
68                 elseif k == "Artist" then mpd_now.artist = escape_f(v)
69                 elseif k == "Title"  then mpd_now.title  = escape_f(v)
70                 elseif k == "Album"  then mpd_now.album  = escape_f(v)
71                 elseif k == "Date"   then mpd_now.date   = escape_f(v)
72                 end
73             end
74         end
75
76         f:close()
77
78         mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
79                                        mpd_now.album, mpd_now.date, mpd_now.title)
80         widget = mpd.widget
81         settings()
82
83         if mpd_now.state == "play"
84         then
85             if mpd_now.title ~= helpers.get_map("current mpd track")
86             then
87                 helpers.set_map("current mpd track", mpd_now.title)
88
89                 os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
90                            mpd_now.file, cover_size, default_art))
91
92                 mpd.id = naughty.notify({
93                     preset = mpd_notification_preset,
94                     icon = "/tmp/mpdcover.png",
95                     replaces_id = mpd.id
96                 }).id
97             end
98         elseif mpd_now.state ~= "pause"
99         then
100             helpers.set_map("current mpd track", nil)
101               end
102     end
103
104     helpers.newtimer("mpd", timeout, mpd.update)
105
106     return setmetatable(mpd, { __index = mpd.widget })
107 end
108
109 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })