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[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 surface      = require("gears").surface
14 local naughty      = require("naughty")
15 local wibox        = require("wibox")
16
17 local io           = { popen    = io.popen }
18 local os           = { execute  = os.execute,
19                        getenv   = os.getenv }
20 local string       = { format   = string.format,
21                        gmatch   = string.gmatch }
22
23 local setmetatable = setmetatable
24
25 -- MPD infos
26 -- lain.widgets.mpd
27 local mpd = {}
28
29 local function worker(args)
30     local args        = args or {}
31     local timeout     = args.timeout or 2
32     local password    = args.password or ""
33     local host        = args.host or "127.0.0.1"
34     local port        = args.port or "6600"
35     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
36     local cover_size  = args.cover_size or 100
37     local default_art = args.default_art or ""
38     local settings    = args.settings or function() end
39
40     local mpdcover = helpers.scripts_dir .. "mpdcover"
41     local mpdh = "telnet://" .. host .. ":" .. port
42     local echo = "echo 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
43
44     mpd.widget = wibox.widget.textbox('')
45
46     mpd_notification_preset = {
47         title   = "Now playing",
48         timeout = 6
49     }
50
51     helpers.set_map("current mpd track", nil)
52
53     function mpd.update()
54         mpd_now = {
55             state  = "N/A",
56             file   = "N/A",
57             artist = "N/A",
58             title  = "N/A",
59             album  = "N/A",
60             date   = "N/A"
61         }
62
63         local f = io.popen(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh)
64
65         for line in f:lines() do
66             for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
67                 if     k == "state"  then mpd_now.state  = v
68                 elseif k == "file"   then mpd_now.file   = v
69                 elseif k == "Artist" then mpd_now.artist = escape_f(v)
70                 elseif k == "Title"  then mpd_now.title  = escape_f(v)
71                 elseif k == "Album"  then mpd_now.album  = escape_f(v)
72                 elseif k == "Date"   then mpd_now.date   = escape_f(v)
73                 end
74             end
75         end
76
77         f:close()
78
79         mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
80                                        mpd_now.album, mpd_now.date, mpd_now.title)
81         widget = mpd.widget
82         settings()
83
84         if mpd_now.state == "play"
85         then
86             if mpd_now.title ~= helpers.get_map("current mpd track")
87             then
88                 helpers.set_map("current mpd track", mpd_now.title)
89
90                 os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
91                            mpd_now.file, cover_size, default_art))
92
93                 mpd.id = naughty.notify({
94                     preset = mpd_notification_preset,
95                     icon = surface.load_uncached("/tmp/mpdcover.png"),
96                     replaces_id = mpd.id
97                 }).id
98             end
99         elseif mpd_now.state ~= "pause"
100         then
101             helpers.set_map("current mpd track", nil)
102               end
103     end
104
105     helpers.newtimer("mpd", timeout, mpd.update)
106
107     return setmetatable(mpd, { __index = mpd.widget })
108 end
109
110 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })