gistfile1.coffee

do ->
  cache = {}
  viewKey = 'ttView'

  methods =
    initialize: (datasetDefs) ->
      datasetDefs = utils.isArray(datasetDefs) ? datasetDefs : [datasetDefs]

      if datasetDefs.length == 0
        $.error('no datasets provided')

      datasets = utils.map datasetDefs, (o) ->
        dataset = cache[o.name] ? cache[o.name] :  new Dataset(o)
        cache[o.name] = dataset if o.name
        return dataset

      return this.each(initialize);

      initialize = ->
        $input = $(this)
        eventBus = new EventBus({ el: $input })
        deferreds = utils.map datasets, (dataset) ->
          return dataset.initialize()

        $input.data(viewKey, new TypeaheadView(
          input: $input
          eventBus: eventBus = new EventBus({ el: $input })
          datasets: datasets
        ))

        $.when.apply($, deferreds).always ->
          # deferring to make it possible to attach a listener
          # for typeahead:initialized after calling jQuery#typeahead
          utils.defer -> eventBus.trigger('initialized')

    destroy: ->
      return this.each(destroy)

      destroy = ->
        $this = $(this)
        view = $this.data(viewKey)

        if view
          view.destroy()
          $this.removeData(viewKey)

    setQuery: (query) ->
      return this.each(setQuery)
      setQuery = ->
        view = $(this).data(viewKey)
        view && view.setQuery(query)

  jQuery.fn.typeahead = (method) ->
    if methods[method]
      return methods[method].apply(this, [].slice.call(arguments, 1))
    else
      return methods.initialize.apply(this, arguments)