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Allow multiple instances of the pulseaudio widget
[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 shell        = require("awful.util").shell
11 local focused      = require("awful.screen").focused
12 local escape_f     = require("awful.util").escape
13 local naughty      = require("naughty")
14 local wibox        = require("wibox")
15 local os           = { getenv = os.getenv }
16 local string       = { format = string.format,
17                        gmatch = string.gmatch }
18 local setmetatable = setmetatable
19
20 -- MOC audio player
21 -- lain.widgets.contrib.moc
22 local moc = {}
23
24 local function worker(args)
25     local args          = args or {}
26     local timeout       = args.timeout or 2
27     local music_dir     = args.music_dir or os.getenv("HOME") .. "/Music"
28     local cover_pattern = args.cover_pattern or "*\\.(jpg|jpeg|png|gif)$"
29     local cover_size    = args.cover_size or 100
30     local default_art   = args.default_art or ""
31     local followtag     = args.followtag or false
32     local settings      = args.settings or function() end
33
34     moc.widget = wibox.widget.textbox()
35
36     moc_notification_preset = { title = "Now playing", timeout = 6 }
37
38     helpers.set_map("current moc track", nil)
39
40     function moc.update()
41         helpers.async("mocp -i", function(f)
42             moc_now = {
43                 state   = "N/A",
44                 file    = "N/A",
45                 artist  = "N/A",
46                 title   = "N/A",
47                 album   = "N/A",
48                 elapsed = "N/A",
49                 total   = "N/A"
50             }
51
52             for line in string.gmatch(f, "[^\n]+") do
53                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
54                     if     k == "State"       then moc_now.state   = v
55                     elseif k == "File"        then moc_now.file    = v
56                     elseif k == "Artist"      then moc_now.artist  = escape_f(v)
57                     elseif k == "SongTitle"   then moc_now.title   = escape_f(v)
58                     elseif k == "Album"       then moc_now.album   = escape_f(v)
59                     elseif k == "CurrentTime" then moc_now.elapsed = escape_f(v)
60                     elseif k == "TotalTime"   then moc_now.total   = escape_f(v)
61                     end
62                 end
63             end
64
65             moc_notification_preset.text = string.format("%s (%s) - %s\n%s", moc_now.artist,
66                                            moc_now.album, moc_now.total, moc_now.title)
67             widget = moc.widget
68             settings()
69
70             if moc_now.state == "PLAY" then
71                 if moc_now.title ~= helpers.get_map("current moc track") then
72                     helpers.set_map("current moc track", moc_now.title)
73
74                     if followtag then moc_notification_preset.screen = focused() end
75
76                     local common =  {
77                         preset      = moc_notification_preset,
78                         icon        = default_art,
79                         icon_size   = cover_size,
80                         replaces_id = moc.id,
81                     }
82
83                     local path   = string.format("%s/%s", music_dir, string.match(moc_now.file, ".*/"))
84                     local cover  = string.format("find '%s' -maxdepth 1 -type f | egrep -i -m1 '%s'", path, cover_pattern)
85                     helpers.async({ shell, "-c", cover }, function(current_icon)
86                         common.icon = current_icon:gsub("\n", "")
87                         moc.id = naughty.notify(common).id
88                     end)
89                 end
90             elseif  moc_now.state ~= "PAUSE" then
91                 helpers.set_map("current moc track", nil)
92             end
93         end)
94     end
95
96     moc.timer = helpers.newtimer("moc", timeout, moc.update, true, true)
97
98     return moc
99 end
100
101 return setmetatable(moc, { __call = function(_, ...) return worker(...) end })