alpaca/dist/lib/typeahead.js/src/typeahead/plugin.js

Alpaca provides the easiest and fastest way to generate interactive forms for the web and mobile devices. It runs simply as HTML5 or more elaborately using Bootstrap, jQuery Mobile or jQuery UI. Alpaca uses Handlebars to process JSON schema and provide

/*
 * typeahead.js
 * https://github.com/twitter/typeahead.js
 * Copyright 2013-2014 Twitter, Inc. and other contributors; Licensed MIT
 */

(function() {
  'use strict';

  var old, typeaheadKey, methods;

  old = $.fn.typeahead;

  typeaheadKey = 'ttTypeahead';

  methods = {
    // supported signatures:
    // function(o, dataset, dataset, ...)
    // function(o, [dataset, dataset, ...])
    initialize: function initialize(o, datasets) {
      datasets = _.isArray(datasets) ? datasets : [].slice.call(arguments, 1);

      o = o || {};

      return this.each(attach);

      function attach() {
        var $input = $(this), eventBus, typeahead;

        _.each(datasets, function(d) {
          // HACK: force highlight as a top-level config
          d.highlight = !!o.highlight;
        });

        typeahead = new Typeahead({
          input: $input,
          eventBus: eventBus = new EventBus({ el: $input }),
          withHint: _.isUndefined(o.hint) ? true : !!o.hint,
          minLength: o.minLength,
          autoselect: o.autoselect,
          datasets: datasets
        });

        $input.data(typeaheadKey, typeahead);
      }
    },

    open: function open() {
      return this.each(openTypeahead);

      function openTypeahead() {
        var $input = $(this), typeahead;

        if (typeahead = $input.data(typeaheadKey)) {
          typeahead.open();
        }
      }
    },

    close: function close() {
      return this.each(closeTypeahead);

      function closeTypeahead() {
        var $input = $(this), typeahead;

        if (typeahead = $input.data(typeaheadKey)) {
          typeahead.close();
        }
      }
    },

    val: function val(newVal) {
      // mirror jQuery#val functionality: reads opearte on first match,
      // write operates on all matches
      return !arguments.length ? getVal(this.first()) : this.each(setVal);

      function setVal() {
        var $input = $(this), typeahead;

        if (typeahead = $input.data(typeaheadKey)) {
          typeahead.setVal(newVal);
        }
      }

      function getVal($input) {
        var typeahead, query;

        if (typeahead = $input.data(typeaheadKey)) {
          query = typeahead.getVal();
        }

        return query;
      }
    },

    destroy: function destroy() {
      return this.each(unattach);

      function unattach() {
        var $input = $(this), typeahead;

        if (typeahead = $input.data(typeaheadKey)) {
          typeahead.destroy();
          $input.removeData(typeaheadKey);
        }
      }
    }
  };

  $.fn.typeahead = function(method) {
    var tts;

    // methods that should only act on intialized typeaheads
    if (methods[method] && method !== 'initialize') {
      // filter out non-typeahead inputs
      tts = this.filter(function() { return !!$(this).data(typeaheadKey); });
      return methods[method].apply(tts, [].slice.call(arguments, 1));
    }

    else {
      return methods.initialize.apply(this, arguments);
    }
  };

  $.fn.typeahead.noConflict = function noConflict() {
    $.fn.typeahead = old;
    return this;
  };
})();