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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
42     local echo = nil
43
44     if password == "" then
45         echo = "(echo -e 'status'; sleep 0.1;" ..
46                "echo -e 'currentsong'; sleep 0.1;" ..
47                "echo -e 'close')"
48     else
49         echo = "(echo -e 'password " .. password .. "'" ..
50                "echo -e 'status'; sleep 0.1;" ..
51                "echo -e 'currentsong'; sleep 0.1;" ..
52                "echo -e 'close')"
53     end
54
55     mpd.widget = wibox.widget.textbox('')
56
57     mpd_notification_preset = {
58         title   = "Now playing",
59         timeout = 6
60     }
61
62     helpers.set_map("current mpd track", nil)
63
64     function mpd.update()
65         mpd_now = {
66             state  = "N/A",
67             file   = "N/A",
68             artist = "N/A",
69             title  = "N/A",
70             album  = "N/A",
71             date   = "N/A"
72         }
73
74         local f = io.popen(echo .. " | curl --connect-timeout 1 -fsm 1 " .. mpdh)
75
76         for line in f:lines() do
77             for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
78                 if     k == "state"  then mpd_now.state  = v
79                 elseif k == "file"   then mpd_now.file   = v
80                 elseif k == "Artist" then mpd_now.artist = escape_f(v)
81                 elseif k == "Title"  then mpd_now.title  = escape_f(v)
82                 elseif k == "Album"  then mpd_now.album  = escape_f(v)
83                 elseif k == "Date"   then mpd_now.date   = escape_f(v)
84                 end
85             end
86         end
87
88         f:close()
89
90         mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
91                                        mpd_now.album, mpd_now.date, mpd_now.title)
92         widget = mpd.widget
93         settings()
94
95         if mpd_now.state == "play"
96         then
97             if mpd_now.title ~= helpers.get_map("current mpd track")
98             then
99                 helpers.set_map("current mpd track", mpd_now.title)
100
101                 os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
102                            mpd_now.file, cover_size, default_art))
103
104                 mpd.id = naughty.notify({
105                     preset = mpd_notification_preset,
106                     icon = "/tmp/mpdcover.png",
107                     replaces_id = mpd.id
108                 }).id
109             end
110         elseif mpd_now.state ~= "pause"
111         then
112             helpers.set_map("current mpd track", nil)
113               end
114     end
115
116     helpers.newtimer("mpd", timeout, mpd.update)
117
118     return setmetatable(mpd, { __index = mpd.widget })
119 end
120
121 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })