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wiki updated; closes #261
[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 focused      = require("awful.screen").focused
15 local naughty      = require("naughty")
16 local wibox        = require("wibox")
17
18 local os           = { execute = os.execute,
19                        getenv  = os.getenv }
20 local math         = { floor   = math.floor }
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 = helpers.make_widget_textbox()
30
31 local function worker(args)
32     local args        = args or {}
33     local timeout     = args.timeout or 2
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 notify      = args.notify or "on"
41     local followtag   = args.followtag or false
42     local echo_cmd    = args.echo_cmd or "echo"
43     local settings    = args.settings or function() end
44
45     local mpdcover = helpers.scripts_dir .. "mpdcover"
46     local mpdh = "telnet://" .. host .. ":" .. port
47     local echo = echo_cmd .. " 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
48
49     mpd_notification_preset = {
50         title   = "Now playing",
51         timeout = 6
52     }
53
54     helpers.set_map("current mpd track", nil)
55
56     function mpd.update()
57         async.request(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh, function (f)
58             mpd_now = {
59                 random_mode  = false,
60                 single_mode  = false,
61                 repeat_mode  = false,
62                 consume_mode = false,
63                 pls_pos      = "N/A",
64                 pls_len      = "N/A",
65                 state        = "N/A",
66                 file         = "N/A",
67                 name         = "N/A",
68                 artist       = "N/A",
69                 title        = "N/A",
70                 album        = "N/A",
71                 genre        = "N/A",
72                 track        = "N/A",
73                 date         = "N/A",
74                 time         = "N/A",
75                 elapsed      = "N/A"
76             }
77
78             for line in string.gmatch(f, "[^\n]+") do
79                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
80                     if     k == "state"          then mpd_now.state        = v
81                     elseif k == "file"           then mpd_now.file         = v
82                     elseif k == "Name"           then mpd_now.name         = escape_f(v)
83                     elseif k == "Artist"         then mpd_now.artist       = escape_f(v)
84                     elseif k == "Title"          then mpd_now.title        = escape_f(v)
85                     elseif k == "Album"          then mpd_now.album        = escape_f(v)
86                     elseif k == "Genre"          then mpd_now.genre        = escape_f(v)
87                     elseif k == "Track"          then mpd_now.track        = escape_f(v)
88                     elseif k == "Date"           then mpd_now.date         = escape_f(v)
89                     elseif k == "Time"           then mpd_now.time         = v
90                     elseif k == "elapsed"        then mpd_now.elapsed      = string.match(v, "%d+")
91                     elseif k == "song"           then mpd_now.pls_pos      = v
92                     elseif k == "playlistlength" then mpd_now.pls_len      = v
93                     elseif k == "repeat"         then mpd_now.repeat_mode  = v ~= "0"
94                     elseif k == "single"         then mpd_now.single_mode  = v ~= "0"
95                     elseif k == "random"         then mpd_now.random_mode  = v ~= "0"
96                     elseif k == "consume"        then mpd_now.consume_mode = v ~= "0"
97                     end
98                 end
99             end
100
101             mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
102                                            mpd_now.album, mpd_now.date, mpd_now.title)
103             widget = mpd.widget
104             settings()
105
106             if mpd_now.state == "play"
107             then
108                 if notify == "on" and mpd_now.title ~= helpers.get_map("current mpd track")
109                 then
110                     helpers.set_map("current mpd track", mpd_now.title)
111
112                     if string.match(mpd_now.file, "http.*://") == nil
113                     then -- local file
114                         os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
115                                    mpd_now.file, cover_size, default_art))
116                         current_icon = "/tmp/mpdcover.png"
117                     else -- http stream
118                         current_icon = default_art
119                     end
120
121                     if followtag then
122                         mpd_notification_preset.screen = focused()
123                     end
124
125                     mpd.id = naughty.notify({
126                         preset = mpd_notification_preset,
127                         icon = os.execute(string.format("ls %s &> /dev/null", current_icon))
128                                and current_icon,
129                         replaces_id = mpd.id,
130                     }).id
131                 end
132             elseif mpd_now.state ~= "pause"
133             then
134                 helpers.set_map("current mpd track", nil)
135             end
136         end)
137     end
138
139     helpers.newtimer("mpd", timeout, mpd.update)
140
141     return mpd
142 end
143
144 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })