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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 local async        = require("lain.asyncshell")
12
13 local escape_f     = require("awful.util").escape
14 local naughty      = require("naughty")
15 local wibox        = require("wibox")
16
17 local os           = { execute  = os.execute,
18                        getenv   = os.getenv }
19 local math         = { floor    = math.floor }
20 local mouse        = mouse
21 local string       = { format   = string.format,
22                        match    = string.match,
23                        gmatch   = string.gmatch }
24
25 local setmetatable = setmetatable
26
27 -- MPD infos
28 -- lain.widgets.mpd
29 local mpd = {}
30
31 local function worker(args)
32     local args        = args or {}
33     local timeout     = args.timeout or 1
34     local password    = args.password or ""
35     local host        = args.host or "127.0.0.1"
36     local port        = args.port or "6600"
37     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
38     local cover_size  = args.cover_size or 100
39     local default_art = args.default_art or ""
40     local followmouse = args.followmouse or false
41     local echo_cmd    = args.echo_cmd or "echo"
42     local settings    = args.settings or function() end
43
44     local mpdcover = helpers.scripts_dir .. "mpdcover"
45     local mpdh = "telnet://" .. host .. ":" .. port
46     local echo = echo_cmd .. " 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
47
48     mpd.widget = wibox.widget.textbox('')
49
50     mpd_notification_preset = {
51         title   = "Now playing",
52         timeout = 5
53     }
54
55     helpers.set_map("current mpd track", "")
56     helpers.set_map("current mpd file", "")
57
58     function mpd.update()
59         async.request(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh, function (f)
60             mpd_now = {
61                 state   = "N/A",
62                 file    = "N/A",
63                 artist  = "N/A",
64                 title   = "N/A",
65                 album   = "N/A",
66                 date    = "N/A",
67                 time    = "N/A",
68                 elapsed = "N/A"
69             }
70
71             for line in string.gmatch(f, "[^\n]+") do
72                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
73                     if     k == "state"   then mpd_now.state   = v
74                     elseif k == "file"    then mpd_now.file    = v
75                     elseif k == "Name"    then mpd_now.name    = escape_f(v)
76                     elseif k == "Artist"  then mpd_now.artist  = escape_f(v)
77                     elseif k == "Title"   then mpd_now.title   = escape_f(v)
78                     elseif k == "Album"   then mpd_now.album   = escape_f(v)
79                     elseif k == "Date"    then mpd_now.date    = escape_f(v)
80                     elseif k == "Time"    then mpd_now.time    = v
81                     elseif k == "elapsed" then mpd_now.elapsed = string.match(v, "%d+")
82                     end
83                 end
84             end
85
86             mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
87                                            mpd_now.album, mpd_now.date, mpd_now.title)
88
89             if mpd_now.file ~= helpers.get_map("current mpd file")
90             then
91                 widget = mpd.widget
92                 settings()
93                 helpers.set_map("current mpd file", mpd_now.file)
94             end
95
96             if mpd_now.state == "play"
97             then
98                 if mpd_now.title ~= helpers.get_map("current mpd track")
99                 then
100                     helpers.set_map("current mpd track", mpd_now.title)
101
102                     if string.match(mpd_now.file, "http.*://") == nil
103                     then -- local file
104                         os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
105                                    mpd_now.file, cover_size, default_art))
106                         current_icon = "/tmp/mpdcover.png"
107                     else -- http stream
108                         current_icon = default_art
109                     end
110
111                     if followmouse then
112                         mpd_notification_preset.screen = mouse.screen
113                     end
114
115                     mpd.id = naughty.notify({
116                         preset = mpd_notification_preset,
117                         icon = current_icon,
118                         replaces_id = mpd.id,
119                     }).id
120                 end
121             elseif mpd_now.state ~= "pause"
122             then
123                 helpers.set_map("current mpd track", nil)
124             end
125         end)
126     end
127
128     helpers.newtimer("mpd", timeout, mpd.update)
129
130     return setmetatable(mpd, { __index = mpd.widget })
131 end
132
133 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })