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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 util         = require("awful.util")
13 local beautiful    = require("beautiful")
14 local naughty      = require("naughty")
15 local wibox        = require("wibox")
16
17 local io           = io
18 local os           = { execute  = os.execute,
19                        getenv   = os.getenv }
20 local string       = { gmatch   = string.gmatch }
21
22 local setmetatable = setmetatable
23
24 -- MPD infos
25 -- lain.widgets.mpd
26 local mpd = { id = nil }
27
28 function worker(args)
29     local args      = args or {}
30     local timeout   = args.timeout or 1
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 settings  = args.settings or function() end
36
37     local mpdcover = helpers.scripts_dir .. "mpdcover"
38     local mpdh = "telnet://" .. host .. ":" .. port
39     local echo = "echo 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
40
41     widget = wibox.widget.textbox('')
42
43     helpers.set_map("current mpd track", nil)
44
45     function update()
46         mpd_now = {
47             state  = "N/A",
48             file   = "N/A",
49             artist = "N/A",
50             title  = "N/A",
51             album  = "N/A",
52             date   = "N/A"
53         }
54
55         local f = io.popen(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh)
56
57         for line in f:lines() do
58             for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
59                 if     k == "state"  then mpd_now.state  = v
60                 elseif k == "file"   then mpd_now.file   = v
61                 elseif k == "Artist" then mpd_now.artist = util.escape(v)
62                 elseif k == "Title"  then mpd_now.title  = util.escape(v)
63                 elseif k == "Album"  then mpd_now.album  = util.escape(v)
64                 elseif k == "Date"   then mpd_now.date   = util.escape(v)
65                 end
66             end
67         end
68
69         f:close()
70
71         notification_preset = {
72             title   = "Now playing",
73             text    = mpd_now.artist .. " ("   ..
74                       mpd_now.album  .. ") - " ..
75                       mpd_now.date   .. "\n"   ..
76                       mpd_now.title,
77             fg      = beautiful.fg_normal or "#FFFFFF",
78             bg      = beautiful.bg_normal or "#000000",
79             timeout = 6
80         }
81
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(mpdcover .. " '" .. music_dir .. "' '"
91                            .. mpd_now.file .. "'")
92
93                 mpd.id = naughty.notify({
94                     preset = notification_preset,
95                     icon = "/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, update)
106
107     output = { widget = widget, notify = update }
108
109     return setmetatable(output, { __index = output.widget })
110 end
111
112 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })