src/plugins/mpd.lua

   1 --[[
   2 =pod
   3
   4 =head1 NAME
   5
   6 mpd.lua - wmiirc-lua plugin for monitoring and controlling mpd (music player daemon)
   7
   8 =head1 SYNOPSIS
   9
  10     -- in your wmiirc.lua:
  11     mpd = wmii.load_plugin("mpd")
  12
  13
  14 =head1 DESCRIPTION
  15
  16 For binding the mpd controls to the multimedia keys you could add
  17 the following keyhandlers to your wmiirc.lua:
  18
  19 wmii.add_key_handler('XF86AudioNext', mpd.next_song())
  20
  21 wmii.add_key_handler('XF86AudioPrev', mpd.prev_song())
  22
  23 wmii.add_key_handler('XF86AudioPlay', mpd.toggle_pause())
  24
  25 wmii.add_key_handler('XF86AudioStop', mpd.stop())
  26
  27 =head1 SEE ALSO
  28
  29 L<wmii(1)>, L<lua(1)>
  30
  31 =head1 AUTHOR
  32
  33 Jan-David Quesel <jdq@gmx.net>
  34
  35 =head1 LICENCE AND COPYRIGHT
  36
  37 Copyright (c) 2008, Jan-David Quesel <jdq@gmx.net>
  38
  39 This is free software.  You may redistribute copies of it under the terms of
  40 the GNU General Public License L<http://www.gnu.org/licenses/gpl.html>.  There
  41 is NO WARRANTY, to the extent permitted by law.
  42
  43 =cut
  44 --]]
  45 local wmii = require("wmii")
  46 local io = require("io")
  47 local string = require("string")
  48
  49 module("mpd")
  50 api_version=0.1
  51
  52 -- ------------------------------------------------------------
  53 -- Configuration Settings
  54 wmii.set_conf ("mpd.server", "127.0.0.1")
  55 wmii.set_conf ("mpd.port", "6600")
  56
  57 -- ------------------------------------------------------------
  58 -- Init Plugin
  59 local widget = wmii.widget:new ("301_mpd_status")
  60
  61 local function _command ( cmd )
  62
  63         if (cmd) then
  64                 wmii.log( "about to run " .. cmd)
  65                 local file = io.popen( cmd)
  66                 local status = file:read("*a")
  67                 file:close()
  68
  69                 return status:match("[^\n]*")
  70         else
  71                 return ""
  72         end
  73 end
  74
  75 local function update_mpd_status (time_since_update)
  76         local printout = _command("export MPD_HOST=" .. wmii.get_conf("mpd.server") .. "&& export MPD_PORT=" .. wmii.get_conf("mpd.port") .. " && mpc")
  77
  78         widget:show(printout)
  79
  80         -- if we dont get a response from the server we test every 2 minutes
  81         if printout == nil or printout == "" then
  82                 return 120
  83         end
  84         return 5
  85 end
  86
  87 function next_song()
  88         _command("export MPD_HOST=" .. wmii.get_conf("mpd.server") .. "&& export MPD_PORT=" .. wmii.get_conf("mpd.port") .. " && mpc next")
  89         update_mpd_status(0)
  90 end
  91
  92 function prev_song()
  93         _command("export MPD_HOST=" .. wmii.get_conf("mpd.server") .. "&& export MPD_PORT=" .. wmii.get_conf("mpd.port") .. " && mpc prev")
  94         update_mpd_status(0)
  95 end
  96
  97 function toggle_pause()
  98         _command("export MPD_HOST=" .. wmii.get_conf("mpd.server") .. "&& export MPD_PORT=" .. wmii.get_conf("mpd.port") .. " && mpc toggle")
  99         update_mpd_status(0)
 100 end
 101
 102 function stop()
 103         _command("export MPD_HOST=" .. wmii.get_conf("mpd.server") .. "&& export MPD_PORT=" .. wmii.get_conf("mpd.port") .. " && mpc stop")
 104         update_mpd_status(0)
 105 end
 106
 107 function register_action()
 108   wmii.add_action_handler ("mpd",
 109     function(act,args)
 110       local actions = { 'play', 'pause', 'stop', 'next', 'prev' }
 111       local act = wmii.menu(actions, "mpd: ")
 112       local fn = function_handlers[act]
 113       if fn then
 114         local r, err = pcall (fn)
 115       end
 116     end)
 117 end
 118
 119 local timer = wmii.timer:new (update_mpd_status, 1)
 120