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enhancement: unique timers for widgets; #114
[etc/awesome.git] / widgets / contrib / moc.lua
1
2 --[[
3                                                                   
4      Licensed under GNU General Public License v2                 
5       * (c) 2014, anticlockwise <http://github.com/anticlockwise> 
6                                                                   
7 --]]
8
9 local helpers = require("lain.helpers")
10 local async   = require("lain.asyncshell")
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 local moc = {}
25
26 local function worker(args)
27     local args        = args or {}
28     local timeout     = args.timeout or 2
29     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
30     local cover_size  = args.cover_size or 100
31     local default_art = args.default_art or ""
32     local settings    = args.settings or function() end
33
34     local mpdcover = helpers.scripts_dir .. "mpdcover"
35
36     moc.widget = wibox.widget.textbox('')
37
38     moc_notification_preset = {
39         title   = "Now playing",
40         timeout = 6
41     }
42
43     helpers.set_map("current moc track", nil)
44
45     function moc.update()
46         -- mocp -i will produce output like:
47         -- Artist: Travis
48         -- Album: The Man Who
49         -- etc.
50         async.request("mocp -i", function(f)
51             moc_now = {
52                 state   = "N/A",
53                 file    = "N/A",
54                 artist  = "N/A",
55                 title   = "N/A",
56                 album   = "N/A",
57                 elapsed = "N/A",
58                 total   = "N/A"
59             }
60
61             for line in f:lines() do
62                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
63                     if k == "State" then moc_now.state = v
64                     elseif k == "File" then moc_now.file = v
65                     elseif k == "Artist" then moc_now.artist = escape_f(v)
66                     elseif k == "SongTitle" then moc_now.title = escape_f(v)
67                     elseif k == "Album" then moc_now.album = escape_f(v)
68                     elseif k == "CurrentTime" then moc_now.elapsed = escape_f(v)
69                     elseif k == "TotalTime" then moc_now.total = escape_f(v)
70                     end
71                 end
72             end
73
74             moc_notification_preset.text = string.format("%s (%s) - %s\n%s", moc_now.artist,
75                                            moc_now.album, moc_now.total, moc_now.title)
76             widget = moc.widget
77             settings()
78
79             if moc_now.state == "PLAY" then
80                 if moc_now.title ~= helpers.get_map("current moc track") then
81                     helpers.set_map("current moc track", moc_now.title)
82                     os.execute(string.format("%s %q %q %d %q", mpdcover, "",
83                                moc_now.file, cover_size, default_art))
84
85                     moc.id = naughty.notify({
86                         preset = moc_notification_preset,
87                         icon = "/tmp/mpdcover.png",
88                         replaces_id = moc.id,
89                     }).id
90                 end
91             elseif  moc_now.state ~= "PAUSE" then
92                 helpers.set_map("current moc track", nil)
93             end
94         end)
95     end
96
97     helpers.newtimer("moc", timeout, moc.update)
98
99     return setmetatable(moc, { __index = moc.widget })
100 end
101
102 return setmetatable(moc, { __call = function(_, ...) return worker(...) end })