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battery: magnitude differences check added; closes #199 #203
[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 -- MOC audio player
25 -- lain.widgets.contrib.moc
26 local moc = {}
27
28 local function worker(args)
29     local args        = args or {}
30     local timeout     = args.timeout or 2
31     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
32     local cover_size  = args.cover_size or 100
33     local default_art = args.default_art or ""
34     local followmouse = args.followmouse or false
35     local settings    = args.settings or function() end
36
37     local mpdcover = helpers.scripts_dir .. "mpdcover"
38
39     moc.widget = wibox.widget.textbox('')
40
41     moc_notification_preset = {
42         title   = "Now playing",
43         timeout = 6
44     }
45
46     helpers.set_map("current moc track", nil)
47
48     function moc.update()
49         -- mocp -i will produce output like:
50         -- Artist: Travis
51         -- Album: The Man Who
52         -- etc.
53         async.request("mocp -i", function(f)
54             moc_now = {
55                 state   = "N/A",
56                 file    = "N/A",
57                 artist  = "N/A",
58                 title   = "N/A",
59                 album   = "N/A",
60                 elapsed = "N/A",
61                 total   = "N/A"
62             }
63
64             for line in string.gmatch(f, "[^\n]+") do
65                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
66                     if k == "State" then moc_now.state = v
67                     elseif k == "File" then moc_now.file = v
68                     elseif k == "Artist" then moc_now.artist = escape_f(v)
69                     elseif k == "SongTitle" then moc_now.title = escape_f(v)
70                     elseif k == "Album" then moc_now.album = escape_f(v)
71                     elseif k == "CurrentTime" then moc_now.elapsed = escape_f(v)
72                     elseif k == "TotalTime" then moc_now.total = escape_f(v)
73                     end
74                 end
75             end
76
77             moc_notification_preset.text = string.format("%s (%s) - %s\n%s", moc_now.artist,
78                                            moc_now.album, moc_now.total, moc_now.title)
79             widget = moc.widget
80             settings()
81
82             if moc_now.state == "PLAY" then
83                 if moc_now.title ~= helpers.get_map("current moc track") then
84                     helpers.set_map("current moc track", moc_now.title)
85                     os.execute(string.format("%s %q %q %d %q", mpdcover, "",
86                                moc_now.file, cover_size, default_art))
87
88                     if followmouse then
89                         moc_notification_preset.screen = mouse.screen
90                     end
91
92                     moc.id = naughty.notify({
93                         preset = moc_notification_preset,
94                         icon = "/tmp/mpdcover.png",
95                         replaces_id = moc.id,
96                     }).id
97                 end
98             elseif  moc_now.state ~= "PAUSE" then
99                 helpers.set_map("current moc track", nil)
100             end
101         end)
102     end
103
104     helpers.newtimer("moc", timeout, moc.update)
105
106     return setmetatable(moc, { __index = moc.widget })
107 end
108
109 return setmetatable(moc, { __call = function(_, ...) return worker(...) end })