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 string       = { format  = string.format,
  21                        match   = string.match,
  22                        gmatch  = string.gmatch }
  23
  24 local setmetatable = setmetatable
  25
  26 -- MPD infos
  27 -- lain.widgets.mpd
  28 local mpd = helpers.make_widget_textbox()
  29
  30 local function worker(args)
  31     local args        = args or {}
  32     local timeout     = args.timeout or 2
  33     local password    = args.password or ""
  34     local host        = args.host or "127.0.0.1"
  35     local port        = args.port or "6600"
  36     local music_dir   = args.music_dir or os.getenv("HOME") .. "/Music"
  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 mpdcover = helpers.scripts_dir .. "mpdcover"
  45     local mpdh = "telnet://" .. host .. ":" .. port
  46     local echo = echo_cmd .. " 'password " .. password .. "\nstatus\ncurrentsong\nclose'"
  47
  48     mpd_notification_preset = {
  49         title   = "Now playing",
  50         timeout = 6
  51     }
  52
  53     helpers.set_map("current mpd track", nil)
  54
  55     function mpd.update()
  56         async.request(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh, function (f)
  57             mpd_now = {
  58                 random_mode  = false,
  59                 single_mode  = false,
  60                 repeat_mode  = false,
  61                 consume_mode = false,
  62                 pls_pos      = "N/A",
  63                 pls_len      = "N/A",
  64                 state        = "N/A",
  65                 file         = "N/A",
  66                 name         = "N/A",
  67                 artist       = "N/A",
  68                 title        = "N/A",
  69                 album        = "N/A",
  70                 genre        = "N/A",
  71                 track        = "N/A",
  72                 date         = "N/A",
  73                 time         = "N/A",
  74                 elapsed      = "N/A"
  75             }
  76
  77             for line in string.gmatch(f, "[^\n]+") do
  78                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
  79                     if     k == "state"          then mpd_now.state        = v
  80                     elseif k == "file"           then mpd_now.file         = v
  81                     elseif k == "Name"           then mpd_now.name         = escape_f(v)
  82                     elseif k == "Artist"         then mpd_now.artist       = escape_f(v)
  83                     elseif k == "Title"          then mpd_now.title        = escape_f(v)
  84                     elseif k == "Album"          then mpd_now.album        = escape_f(v)
  85                     elseif k == "Genre"          then mpd_now.genre        = escape_f(v)
  86                     elseif k == "Track"          then mpd_now.track        = escape_f(v)
  87                     elseif k == "Date"           then mpd_now.date         = escape_f(v)
  88                     elseif k == "Time"           then mpd_now.time         = v
  89                     elseif k == "elapsed"        then mpd_now.elapsed      = string.match(v, "%d+")
  90                     elseif k == "song"           then mpd_now.pls_pos      = v
  91                     elseif k == "playlistlength" then mpd_now.pls_len      = v
  92                     elseif k == "repeat"         then mpd_now.repeat_mode  = v ~= "0"
  93                     elseif k == "single"         then mpd_now.single_mode  = v ~= "0"
  94                     elseif k == "random"         then mpd_now.random_mode  = v ~= "0"
  95                     elseif k == "consume"        then mpd_now.consume_mode = v ~= "0"
  96                     end
  97                 end
  98             end
  99
 100             mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
 101                                            mpd_now.album, mpd_now.date, mpd_now.title)
 102             widget = mpd.widget
 103             settings()
 104
 105             if mpd_now.state == "play"
 106             then
 107                 if notify == "on" and mpd_now.title ~= helpers.get_map("current mpd track")
 108                 then
 109                     helpers.set_map("current mpd track", mpd_now.title)
 110
 111                     if string.match(mpd_now.file, "http.*://") == nil
 112                     then -- local file
 113                         os.execute(string.format("%s %q %q %d %q", mpdcover, music_dir,
 114                                    mpd_now.file, cover_size, default_art))
 115                         current_icon = "/tmp/mpdcover.png"
 116                     else -- http stream
 117                         current_icon = default_art
 118                     end
 119
 120                     if followtag then
 121                         mpd_notification_preset.screen = awful.screen.focused()
 122                     end
 123
 124                     mpd.id = naughty.notify({
 125                         preset = mpd_notification_preset,
 126                         icon = current_icon,
 127                         replaces_id = mpd.id,
 128                     }).id
 129                 end
 130             elseif mpd_now.state ~= "pause"
 131             then
 132                 helpers.set_map("current mpd track", nil)
 133             end
 134         end)
 135     end
 136
 137     helpers.newtimer("mpd", timeout, mpd.update)
 138
 139     return mpd
 140 end
 141
 142 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })