CommunicationLine model for morse code demo

gistfile1.coffee

class CommunicationLine extends Backbone.Model
   initialize: (options) =>
      @inputQueue = []

      @communicationLine = 
       ['', '', '', '', '', '', '', '', '', '']

      @decoder = options.decoder
      setInterval(@moveDataOneStep, 100)

   addToken: (token) =>
      @inputQueue.push(token)

   moveDataOneStep: =>
      @decoder.processToken(@communicationLine.pop())
      nextToken = @inputQueue.shift()

      @communicationLine.unshift(
       if undefined == nextToken then '' else nextToken)

      @trigger('hasNewData', @communicationLine)