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 async        = require("lain.asyncshell")
  11 local helpers      = require("lain.helpers")
  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           = { getenv = os.getenv }
  19 local string       = { format = string.format,
  20                        gmatch = string.gmatch,
  21                        match  = string.match }
  22
  23 local setmetatable = setmetatable
  24
  25 -- MPD infos
  26 -- lain.widgets.mpd
  27 local mpd = helpers.make_widget_textbox()
  28
  29 local function worker(args)
  30     local args          = args or {}
  31     local timeout       = args.timeout or 2
  32     local password      = args.password or ""
  33     local host          = args.host or "127.0.0.1"
  34     local port          = args.port or "6600"
  35     local music_dir     = args.music_dir or os.getenv("HOME") .. "/Music"
  36     local cover_pattern = args.cover_pattern or "*\\.(jpg|jpeg|png|gif)$"
  37     local cover_size    = args.cover_size or 100
  38     local default_art   = args.default_art or ""
  39     local notify        = args.notify or "on"
  40     local followtag     = args.followtag or false
  41     local echo_cmd      = args.echo_cmd or "echo"
  42     local settings      = args.settings or function() end
  43
  44     local mpdh = string.format("telnet://%s:%s", host, port)
  45     local echo = string.format("%s 'password %s\nstatus\ncurrentsong\nclose'", echo_cmd, password)
  46
  47     mpd_notification_preset = {
  48         title   = "Now playing",
  49         timeout = 6
  50     }
  51
  52     helpers.set_map("current mpd track", nil)
  53
  54     function mpd.update()
  55         async.request(string.format("%s | curl --connect-timeout 1 -fsm 3 %s", echo, mpdh), function (f)
  56             mpd_now = {
  57                 random_mode  = false,
  58                 single_mode  = false,
  59                 repeat_mode  = false,
  60                 consume_mode = false,
  61                 pls_pos      = "N/A",
  62                 pls_len      = "N/A",
  63                 state        = "N/A",
  64                 file         = "N/A",
  65                 name         = "N/A",
  66                 artist       = "N/A",
  67                 title        = "N/A",
  68                 album        = "N/A",
  69                 genre        = "N/A",
  70                 track        = "N/A",
  71                 date         = "N/A",
  72                 time         = "N/A",
  73                 elapsed      = "N/A"
  74             }
  75
  76             for line in string.gmatch(f, "[^\n]+") do
  77                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
  78                     if     k == "state"          then mpd_now.state        = v
  79                     elseif k == "file"           then mpd_now.file         = v
  80                     elseif k == "Name"           then mpd_now.name         = escape_f(v)
  81                     elseif k == "Artist"         then mpd_now.artist       = escape_f(v)
  82                     elseif k == "Title"          then mpd_now.title        = escape_f(v)
  83                     elseif k == "Album"          then mpd_now.album        = escape_f(v)
  84                     elseif k == "Genre"          then mpd_now.genre        = escape_f(v)
  85                     elseif k == "Track"          then mpd_now.track        = escape_f(v)
  86                     elseif k == "Date"           then mpd_now.date         = escape_f(v)
  87                     elseif k == "Time"           then mpd_now.time         = v
  88                     elseif k == "elapsed"        then mpd_now.elapsed      = string.match(v, "%d+")
  89                     elseif k == "song"           then mpd_now.pls_pos      = v
  90                     elseif k == "playlistlength" then mpd_now.pls_len      = v
  91                     elseif k == "repeat"         then mpd_now.repeat_mode  = v ~= "0"
  92                     elseif k == "single"         then mpd_now.single_mode  = v ~= "0"
  93                     elseif k == "random"         then mpd_now.random_mode  = v ~= "0"
  94                     elseif k == "consume"        then mpd_now.consume_mode = v ~= "0"
  95                     end
  96                 end
  97             end
  98
  99             mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
 100                                            mpd_now.album, mpd_now.date, mpd_now.title)
 101             widget = mpd.widget
 102             settings()
 103
 104             if mpd_now.state == "play" then
 105                 if notify == "on" and mpd_now.title ~= helpers.get_map("current mpd track") then
 106                     helpers.set_map("current mpd track", mpd_now.title)
 107
 108                     local current icon = default_art
 109
 110                     if not string.match(mpd_now.file, "http.*://") then -- local file instead of http stream
 111                         local path   = string.format("%s/%s", music_dir, string.match(mpd_now.file, ".*/"))
 112                         local cover  = string.format("find '%s' -maxdepth 1 -type f | egrep -i -m1 '%s'", path, cover_pattern)
 113                         current_icon = helpers.read_pipe(cover):gsub("\n", "")
 114                     end
 115
 116                     if followtag then mpd_notification_preset.screen = focused() end
 117
 118                     mpd.id = naughty.notify({
 119                         preset      = mpd_notification_preset,
 120                         icon        = current_icon,
 121                         icon_size   = cover_size,
 122                         replaces_id = mpd.id,
 123                     }).id
 124                 end
 125             elseif mpd_now.state ~= "pause" then
 126                 helpers.set_map("current mpd track", nil)
 127             end
 128         end)
 129     end
 130
 131     helpers.newtimer("mpd", timeout, mpd.update)
 132
 133     return mpd
 134 end
 135
 136 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })