Class: AmpachePlaylist

Inherits:
Object
  • Object
show all
Defined in:
lib/lib-classes.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ AmpachePlaylist

Returns a new instance of AmpachePlaylist.



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# File 'lib/lib-classes.rb', line 71

def initialize
  @started = false
  @list = []
end

Instance Attribute Details

#list ⇒ Object (readonly)

Returns the value of attribute list.



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# File 'lib/lib-classes.rb', line 76

def list
  @list
end

Instance Method Details

#add(song) ⇒ Object 



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# File 'lib/lib-classes.rb', line 115

def add(song)
  say(HighLine.new.color("adding song ",:green) + "#{song.title}")
  if !@pid && !started?
    mplayer_start(song)
  else
    @list << song
  end
end

#command(cmd, match = //) ⇒ Object 



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# File 'lib/lib-classes.rb', line 189

def command(cmd, match = //)
  @stdin.puts(cmd)
  response = ""
  begin
    t = Timeout::timeout(3) do
      until response =~ match
        response = @stdout.gets
        #puts response
  #XXX escaping bad utf8 chars
        ic = Iconv.new('UTF-8//IGNORE', 'UTF-8')
        if response
          response =ic.iconv(response + ' ')[0..-2]
        else
          response == ''
        end
      end
    end
    return response.gsub("\e[A\r\e[K", "")
  rescue Timeout::Error
    return
  end

end

#console ⇒ Object 



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# File 'lib/lib-classes.rb', line 109

def console
  while ((cmd = gets.chomp)  != 'exit' )
    @stdin.puts cmd
  end
end

#get(value) ⇒ Object

I borrowed these two methods from the author of mplayer-ruby! so my thanks to Artuh Chiu and his great gem mplayer-ruby



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# File 'lib/lib-classes.rb', line 173

def get(value)
  field = value.to_s
  match = case field
  when "time_pos" then
    "ANS_TIME_POSITION"
  when "time_length" then
    "ANS_LENGTH"
  when "file_name" then
    "ANS_FILENAME"
  else
    "ANS_#{field.upcase}"
  end
  res = command("get_#{value}", /#{match}/)
  res.gsub("#{match}=", "").gsub("'", "")  unless res.nil?
end

#mplayer_start(song) ⇒ Object 



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# File 'lib/lib-classes.rb', line 87

def mplayer_start(song)
#puts song.inspect
  $options[:path] ||= '/usr/bin/mplayer'
  $options[:timeout] ||= 15
  mplayer_options = "-slave -quiet"
  mplayer = "#{$options[:path]} #{mplayer_options} \"#{song.url}\""
  @pid, @stdin, @stdout, @stderr = Open4.popen4(mplayer)
  #puts mplayer
  started!
  Thread.new do
    ignored, status = Process::waitpid2 @pid
    next_song = @list.slice!(0)
    if next_song && started?
      mplayer_start(next_song) 
    else
      puts "PLAYLIST OVER"
      @started = false
      @pid  = nil
    end
  end
end

#next ⇒ Object 



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# File 'lib/lib-classes.rb', line 143

def next
  begin
    # quit current mplayer instance.. thread will fire up next song!
    @stdin.puts "quit" if @pid && started?
  rescue Errno::EPIPE => e
    puts "playlist is over on next"
    @pid = nil
  end
end

#now_playing ⇒ Object 



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# File 'lib/lib-classes.rb', line 153

def now_playing
  return "Not playing man!" unless started?  && !@pid.nil?
  begin
    s = get("meta_title")
    return "data not available OR playlist is over"  if s.nil?
    s+= get("meta_artist") rescue s
    s+= get("meta_album")  rescue s
    s.chomp!
    return s

  rescue Errno::EPIPE => e
    @pid = nil
    @started = false
    return "playlist is over here" #, or you got an ERROR from mplayer: #{e.to_s}"

  end
end

#pause ⇒ Object 



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# File 'lib/lib-classes.rb', line 135

def pause
  begin
    @stdin.puts "pause" if @pid && started?
  rescue Errno::EPIPE
    puts "playlist is over"
  end
end

#started! ⇒ Object 



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# File 'lib/lib-classes.rb', line 82

def started!
  @started = true
end

#started? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/lib-classes.rb', line 78

def started?
  @started == true
end

#stop ⇒ Object 



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# File 'lib/lib-classes.rb', line 124

def stop
  begin
    @started = false
    @list = []
    @stdin.puts "quit" if @pid
  rescue Errno::EPIPE
    puts "playlist is over"
  end
  @pid = nil
end