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