Listing 2. pidgin_rhythmbox.rb

#!/usr/bin/env ruby

require 'dbus'

bus = DBus::SessionBus.instance
rhythmbox = bus.service("org.gnome.Rhythmbox")
player = rhythmbox.object("/org/gnome/Rhythmbox/Player")
player.introspect
player.default_iface = "org.gnome.Rhythmbox.Player"

pidgin = bus.service("im.pidgin.purple.PurpleService")
purple = pidgin.object("/im/pidgin/purple/PurpleObject")
purple.introspect
purple.default_iface = "im.pidgin.purple.PurpleInterface"

player.on_signal("playingUriChanged") do |uri|
  status = purple.PurpleSavedstatusFind("rhythmbox").first
  if status == 0
    status = purple.PurpleSavedstatusNew("rhythmbox", 2).first
  end
  purple.PurpleSavedstatusSetMessage(status, uri.to_s)
  purple.PurpleSavedstatusActivate(status)
end