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Merge pull request #253 from aajjbb/fix-alsabar-typo
[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 focused  = require("awful.screen").focused
13 local escape_f = require("awful.util").escape
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 -- MOC audio player
26 -- lain.widgets.contrib.moc
27 local moc = {}
28
29 local function worker(args)
30     local args        = args or {}
31     local timeout     = args.timeout or 2
32     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
33     local cover_size  = args.cover_size or 100
34     local default_art = args.default_art or ""
35     local followtag    = args.followtag or false
36     local settings    = args.settings or function() end
37
38     local mpdcover = helpers.scripts_dir .. "mpdcover"
39
40     moc.widget = wibox.widget.textbox('')
41
42     moc_notification_preset = {
43         title   = "Now playing",
44         timeout = 6
45     }
46
47     helpers.set_map("current moc track", nil)
48
49     function moc.update()
50         -- mocp -i will produce output like:
51         -- Artist: Travis
52         -- Album: The Man Who
53         -- etc.
54         async.request("mocp -i", function(f)
55             moc_now = {
56                 state   = "N/A",
57                 file    = "N/A",
58                 artist  = "N/A",
59                 title   = "N/A",
60                 album   = "N/A",
61                 elapsed = "N/A",
62                 total   = "N/A"
63             }
64
65             for line in string.gmatch(f, "[^\n]+") do
66                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
67                     if k == "State" then moc_now.state = v
68                     elseif k == "File" then moc_now.file = v
69                     elseif k == "Artist" then moc_now.artist = escape_f(v)
70                     elseif k == "SongTitle" then moc_now.title = escape_f(v)
71                     elseif k == "Album" then moc_now.album = escape_f(v)
72                     elseif k == "CurrentTime" then moc_now.elapsed = escape_f(v)
73                     elseif k == "TotalTime" then moc_now.total = escape_f(v)
74                     end
75                 end
76             end
77
78             moc_notification_preset.text = string.format("%s (%s) - %s\n%s", moc_now.artist,
79                                            moc_now.album, moc_now.total, moc_now.title)
80             widget = moc.widget
81             settings()
82
83             if moc_now.state == "PLAY" then
84                 if moc_now.title ~= helpers.get_map("current moc track") then
85                     helpers.set_map("current moc track", moc_now.title)
86                     os.execute(string.format("%s %q %q %d %q", mpdcover, "",
87                                moc_now.file, cover_size, default_art))
88
89                     if followtag then
90                         moc_notification_preset.screen = focused()
91                     end
92
93                     moc.id = naughty.notify({
94                         preset = moc_notification_preset,
95                         icon = "/tmp/mpdcover.png",
96                         replaces_id = moc.id,
97                     }).id
98                 end
99             elseif  moc_now.state ~= "PAUSE" then
100                 helpers.set_map("current moc track", nil)
101             end
102         end)
103     end
104
105     helpers.newtimer("moc", timeout, moc.update)
106
107     return setmetatable(moc, { __index = moc.widget })
108 end
109
110 return setmetatable(moc, { __call = function(_, ...) return worker(...) end })