/*!

Chosen, a Select Box Enhancer for jQuery and Prototype

by Patrick Filler for Harvest, http://getharvest.com



Version 1.5.1

Full source at https://github.com/harvesthq/chosen

Copyright (c) 2011-2016 Harvest http://getharvest.com



MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md

This file is generated by `grunt build`, do not edit it by hand.

*/



(function() {

  var $, AbstractChosen, Chosen, SelectParser, _ref,

    __hasProp = {}.hasOwnProperty,

    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };



  SelectParser = (function() {

    function SelectParser() {

      this.options_index = 0;

      this.parsed = [];

    }



    SelectParser.prototype.add_node = function(child) {

      if (child.nodeName.toUpperCase() === "OPTGROUP") {

        return this.add_group(child);

      } else {

        return this.add_option(child);

      }

    };



    SelectParser.prototype.add_group = function(group) {

      var group_position, option, _i, _len, _ref, _results;

      group_position = this.parsed.length;

      this.parsed.push({

        array_index: group_position,

        group: true,

        label: this.escapeExpression(group.label),

        title: group.title ? group.title : void 0,

        children: 0,

        disabled: group.disabled,

        classes: group.className

      });

      _ref = group.childNodes;

      _results = [];

      for (_i = 0, _len = _ref.length; _i < _len; _i++) {

        option = _ref[_i];

        _results.push(this.add_option(option, group_position, group.disabled));

      }

      return _results;

    };



    SelectParser.prototype.add_option = function(option, group_position, group_disabled) {

      if (option.nodeName.toUpperCase() === "OPTION") {

        if (option.text !== "") {

          if (group_position != null) {

            this.parsed[group_position].children += 1;

          }

          this.parsed.push({

            array_index: this.parsed.length,

            options_index: this.options_index,

            value: option.value,

            text: option.text,

            html: option.innerHTML,

            title: option.title ? option.title : void 0,

            selected: option.selected,

            disabled: group_disabled === true ? group_disabled : option.disabled,

            group_array_index: group_position,

            group_label: group_position != null ? this.parsed[group_position].label : null,

            classes: option.className,

            style: option.style.cssText

          });

        } else {

          this.parsed.push({

            array_index: this.parsed.length,

            options_index: this.options_index,

            empty: true

          });

        }

        return this.options_index += 1;

      }

    };



    SelectParser.prototype.escapeExpression = function(text) {

      var map, unsafe_chars;

      if ((text == null) || text === false) {

        return "";

      }

      if (!/[\&\<\>\"\'\`]/.test(text)) {

        return text;

      }

      map = {

        "<": "&lt;",

        ">": "&gt;",

        '"': "&quot;",

        "'": "&#x27;",

        "`": "&#x60;"

      };

      unsafe_chars = /&(?!\w+;)|[\<\>\"\'\`]/g;

      return text.replace(unsafe_chars, function(chr) {

        return map[chr] || "&amp;";

      });

    };



    return SelectParser;



  })();



  SelectParser.select_to_array = function(select) {

    var child, parser, _i, _len, _ref;

    parser = new SelectParser();

    _ref = select.childNodes;

    for (_i = 0, _len = _ref.length; _i < _len; _i++) {

      child = _ref[_i];

      parser.add_node(child);

    }

    return parser.parsed;

  };



  AbstractChosen = (function() {

    function AbstractChosen(form_field, options) {

      this.form_field = form_field;

      this.options = options != null ? options : {};

      if (!AbstractChosen.browser_is_supported()) {

        return;

      }

      this.is_multiple = this.form_field.multiple;

      this.set_default_text();

      this.set_default_values();

      this.setup();

      this.set_up_html();

      this.register_observers();

      this.on_ready();

    }



    AbstractChosen.prototype.set_default_values = function() {

      var _this = this;

      this.click_test_action = function(evt) {

        return _this.test_active_click(evt);

      };

      this.activate_action = function(evt) {

        return _this.activate_field(evt);

      };

      this.active_field = false;

      this.mouse_on_container = false;

      this.results_showing = false;

      this.result_highlighted = null;

      this.allow_single_deselect = (this.options.allow_single_deselect != null) && (this.form_field.options[0] != null) && this.form_field.options[0].text === "" ? this.options.allow_single_deselect : false;

      this.disable_search_threshold = this.options.disable_search_threshold || 0;

      this.disable_search = this.options.disable_search || false;

      this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;

      this.group_search = this.options.group_search != null ? this.options.group_search : true;

      this.search_contains = this.options.search_contains || false;

      this.single_backstroke_delete = this.options.single_backstroke_delete != null ? this.options.single_backstroke_delete : true;

      this.max_selected_options = this.options.max_selected_options || Infinity;

      this.inherit_select_classes = this.options.inherit_select_classes || false;

      this.display_selected_options = this.options.display_selected_options != null ? this.options.display_selected_options : true;

      this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;

      this.include_group_label_in_selected = this.options.include_group_label_in_selected || false;

      return this.max_shown_results = this.options.max_shown_results || Number.POSITIVE_INFINITY;

    };



    AbstractChosen.prototype.set_default_text = function() {

      if (this.form_field.getAttribute("data-placeholder")) {

        this.default_text = this.form_field.getAttribute("data-placeholder");

      } else if (this.is_multiple) {

        this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;

      } else {

        this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;

      }

      return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;

    };



    AbstractChosen.prototype.choice_label = function(item) {

      if (this.include_group_label_in_selected && (item.group_label != null)) {

        return "<b class='group-name'>" + item.group_label + "</b>" + item.html;

      } else {

        return item.html;

      }

    };



    AbstractChosen.prototype.mouse_enter = function() {

      return this.mouse_on_container = true;

    };



    AbstractChosen.prototype.mouse_leave = function() {

      return this.mouse_on_container = false;

    };



    AbstractChosen.prototype.input_focus = function(evt) {

      var _this = this;

      if (this.is_multiple) {

        if (!this.active_field) {

          return setTimeout((function() {

            return _this.container_mousedown();

          }), 50);

        }

      } else {

        if (!this.active_field) {

          return this.activate_field();

        }

      }

    };



    AbstractChosen.prototype.input_blur = function(evt) {

      var _this = this;

      if (!this.mouse_on_container) {

        this.active_field = false;

        return setTimeout((function() {

          return _this.blur_test();

        }), 100);

      }

    };



    AbstractChosen.prototype.results_option_build = function(options) {

      var content, data, data_content, shown_results, _i, _len, _ref;

      content = '';

      shown_results = 0;

      _ref = this.results_data;

      for (_i = 0, _len = _ref.length; _i < _len; _i++) {

        data = _ref[_i];

        data_content = '';

        if (data.group) {

          data_content = this.result_add_group(data);

        } else {

          data_content = this.result_add_option(data);

        }

        if (data_content !== '') {

          shown_results++;

          content += data_content;

        }

        if (options != null ? options.first : void 0) {

          if (data.selected && this.is_multiple) {

            this.choice_build(data);

          } else if (data.selected && !this.is_multiple) {

            this.single_set_selected_text(this.choice_label(data));

          }

        }

        if (shown_results >= this.max_shown_results) {

          break;

        }

      }

      return content;

    };



    AbstractChosen.prototype.result_add_option = function(option) {

      var classes, option_el;

      if (!option.search_match) {

        return '';

      }

      if (!this.include_option_in_results(option)) {

        return '';

      }

      classes = [];

      if (!option.disabled && !(option.selected && this.is_multiple)) {

        classes.push("active-result");

      }

      if (option.disabled && !(option.selected && this.is_multiple)) {

        classes.push("disabled-result");

      }

      if (option.selected) {

        classes.push("result-selected");

      }

      if (option.group_array_index != null) {

        classes.push("group-option");

      }

      if (option.classes !== "") {

        classes.push(option.classes);

      }

      option_el = document.createElement("li");

      option_el.className = classes.join(" ");

      option_el.style.cssText = option.style;

      option_el.setAttribute("data-option-array-index", option.array_index);

      option_el.innerHTML = option.search_text;

      if (option.title) {

        option_el.title = option.title;

      }

      return this.outerHTML(option_el);

    };



    AbstractChosen.prototype.result_add_group = function(group) {

      var classes, group_el;

      if (!(group.search_match || group.group_match)) {

        return '';

      }

      if (!(group.active_options > 0)) {

        return '';

      }

      classes = [];

      classes.push("group-result");

      if (group.classes) {

        classes.push(group.classes);

      }

      group_el = document.createElement("li");

      group_el.className = classes.join(" ");

      group_el.innerHTML = group.search_text;

      if (group.title) {

        group_el.title = group.title;

      }

      return this.outerHTML(group_el);

    };



    AbstractChosen.prototype.results_update_field = function() {

      this.set_default_text();

      if (!this.is_multiple) {

        this.results_reset_cleanup();

      }

      this.result_clear_highlight();

      this.results_build();

      if (this.results_showing) {

        return this.winnow_results();

      }

    };



    AbstractChosen.prototype.reset_single_select_options = function() {

      var result, _i, _len, _ref, _results;

      _ref = this.results_data;

      _results = [];

      for (_i = 0, _len = _ref.length; _i < _len; _i++) {

        result = _ref[_i];

        if (result.selected) {

          _results.push(result.selected = false);

        } else {

          _results.push(void 0);

        }

      }

      return _results;

    };



    AbstractChosen.prototype.results_toggle = function() {

      if (this.results_showing) {

        return this.results_hide();

      } else {

        return this.results_show();

      }

    };



    AbstractChosen.prototype.results_search = function(evt) {

      if (this.results_showing) {

        return this.winnow_results();

      } else {

        return this.results_show();

      }

    };



    AbstractChosen.prototype.winnow_results = function() {

      var escapedSearchText, option, regex, results, results_group, searchText, startpos, text, zregex, _i, _len, _ref;

      this.no_results_clear();

      results = 0;

      searchText = this.get_search_text();

      escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");

      zregex = new RegExp(escapedSearchText, 'i');

      regex = this.get_search_regex(escapedSearchText);

      _ref = this.results_data;

      for (_i = 0, _len = _ref.length; _i < _len; _i++) {

        option = _ref[_i];

        option.search_match = false;

        results_group = null;

        if (this.include_option_in_results(option)) {

          if (option.group) {

            option.group_match = false;

            option.active_options = 0;

          }

          if ((option.group_array_index != null) && this.results_data[option.group_array_index]) {

            results_group = this.results_data[option.group_array_index];

            if (results_group.active_options === 0 && results_group.search_match) {

              results += 1;

            }

            results_group.active_options += 1;

          }

          option.search_text = option.group ? option.label : option.html;

          if (!(option.group && !this.group_search)) {

            option.search_match = this.search_string_match(option.search_text, regex);

            if (option.search_match && !option.group) {

              results += 1;

            }

            if (option.search_match) {

              if (searchText.length) {

                startpos = option.search_text.search(zregex);

                text = option.search_text.substr(0, startpos + searchText.length) + '</em>' + option.search_text.substr(startpos + searchText.length);

                option.search_text = text.substr(0, startpos) + '<em>' + text.substr(startpos);

              }

              if (results_group != null) {

                results_group.group_match = true;

              }

            } else if ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {

              option.search_match = true;

            }

          }

        }

      }

      this.result_clear_highlight();

      if (results < 1 && searchText.length) {

        this.update_results_content("");

        return this.no_results(searchText);

      } else {

        this.update_results_content(this.results_option_build());

        return this.winnow_results_set_highlight();

      }

    };



    AbstractChosen.prototype.get_search_regex = function(escaped_search_string) {

      var regex_anchor;

      regex_anchor = this.search_contains ? "" : "^";

      return new RegExp(regex_anchor + escaped_search_string, 'i');

    };



    AbstractChosen.prototype.search_string_match = function(search_string, regex) {

      var part, parts, _i, _len;

      if (regex.test(search_string)) {

        return true;

      } else if (this.enable_split_word_search && (search_string.indexOf(" ") >= 0 || search_string.indexOf("[") === 0)) {

        parts = search_string.replace(/\[|\]/g, "").split(" ");

        if (parts.length) {

          for (_i = 0, _len = parts.length; _i < _len; _i++) {

            part = parts[_i];

            if (regex.test(part)) {

              return true;

            }

          }

        }

      }

    };



    AbstractChosen.prototype.choices_count = function() {

      var option, _i, _len, _ref;

      if (this.selected_option_count != null) {

        return this.selected_option_count;

      }

      this.selected_option_count = 0;

      _ref = this.form_field.options;

      for (_i = 0, _len = _ref.length; _i < _len; _i++) {

        option = _ref[_i];

        if (option.selected) {

          this.selected_option_count += 1;

        }

      }

      return this.selected_option_count;

    };



    AbstractChosen.prototype.choices_click = function(evt) {

      evt.preventDefault();

      if (!(this.results_showing || this.is_disabled)) {

        return this.results_show();

      }

    };



    AbstractChosen.prototype.keyup_checker = function(evt) {

      var stroke, _ref;

      stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;

      this.search_field_scale();

      switch (stroke) {

        case 8:

          if (this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {

            return this.keydown_backstroke();

          } else if (!this.pending_backstroke) {

            this.result_clear_highlight();

            return this.results_search();

          }

          break;

        case 13:

          evt.preventDefault();

          if (this.results_showing) {

            return this.result_select(evt);

          }

          break;

        case 27:

          if (this.results_showing) {

            this.results_hide();

          }

          return true;

        case 9:

        case 38:

        case 40:

        case 16:

        case 91:

        case 17:

        case 18:

          break;

        default:

          return this.results_search();

      }

    };



    AbstractChosen.prototype.clipboard_event_checker = function(evt) {

      var _this = this;

      return setTimeout((function() {

        return _this.results_search();

      }), 50);

    };



    AbstractChosen.prototype.container_width = function() {

      if (this.options.width != null) {

        return this.options.width;

      } else {

        return "" + this.form_field.offsetWidth + "px";

      }

    };



    AbstractChosen.prototype.include_option_in_results = function(option) {

      if (this.is_multiple && (!this.display_selected_options && option.selected)) {

        return false;

      }

      if (!this.display_disabled_options && option.disabled) {

        return false;

      }

      if (option.empty) {

        return false;

      }

      return true;

    };



    AbstractChosen.prototype.search_results_touchstart = function(evt) {

      this.touch_started = true;

      return this.search_results_mouseover(evt);

    };



    AbstractChosen.prototype.search_results_touchmove = function(evt) {

      this.touch_started = false;

      return this.search_results_mouseout(evt);

    };



    AbstractChosen.prototype.search_results_touchend = function(evt) {

      if (this.touch_started) {

        return this.search_results_mouseup(evt);

      }

    };



    AbstractChosen.prototype.outerHTML = function(element) {

      var tmp;

      if (element.outerHTML) {

        return element.outerHTML;

      }

      tmp = document.createElement("div");

      tmp.appendChild(element);

      return tmp.innerHTML;

    };



    AbstractChosen.browser_is_supported = function() {

      if (/iP(od|hone)/i.test(window.navigator.userAgent)) {

        return false;

      }

      if (/Android/i.test(window.navigator.userAgent)) {

        if (/Mobile/i.test(window.navigator.userAgent)) {

          return false;

        }

      }

      if (/IEMobile/i.test(window.navigator.userAgent)) {

        return false;

      }

      if (/Windows Phone/i.test(window.navigator.userAgent)) {

        return false;

      }

      if (/BlackBerry/i.test(window.navigator.userAgent)) {

        return false;

      }

      if (/BB10/i.test(window.navigator.userAgent)) {

        return false;

      }

      if (window.navigator.appName === "Microsoft Internet Explorer") {

        return document.documentMode >= 8;

      }

      return true;

    };



    AbstractChosen.default_multiple_text = "Select Some Options";



    AbstractChosen.default_single_text = "Select an Option";



    AbstractChosen.default_no_result_text = "No results match";



    return AbstractChosen;



  })();



  $ = jQuery;



  $.fn.extend({

    chosen: function(options) {

      if (!AbstractChosen.browser_is_supported()) {

        return this;

      }

      return this.each(function(input_field) {

        var $this, chosen;

        $this = $(this);

        chosen = $this.data('chosen');

        if (options === 'destroy') {

          if (chosen instanceof Chosen) {

            chosen.destroy();

          }

          return;

        }

        if (!(chosen instanceof Chosen)) {

          $this.data('chosen', new Chosen(this, options));

        }

      });

    }

  });



  Chosen = (function(_super) {

    __extends(Chosen, _super);



    function Chosen() {

      _ref = Chosen.__super__.constructor.apply(this, arguments);

      return _ref;

    }



    Chosen.prototype.setup = function() {

      this.form_field_jq = $(this.form_field);

      this.current_selectedIndex = this.form_field.selectedIndex;

      return this.is_rtl = this.form_field_jq.hasClass("chosen-rtl");

    };



    Chosen.prototype.set_up_html = function() {

      var container_classes, container_props;

      container_classes = ["chosen-container"];

      container_classes.push("chosen-container-" + (this.is_multiple ? "multi" : "single"));

      if (this.inherit_select_classes && this.form_field.className) {

        container_classes.push(this.form_field.className);

      }

      if (this.is_rtl) {

        container_classes.push("chosen-rtl");

      }

      container_props = {

        'class': container_classes.join(' '),

        'style': "width: " + (this.container_width()) + ";",

        'title': this.form_field.title

      };

      if (this.form_field.id.length) {

        container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chosen";

      }

      this.container = $("<div />", container_props);

      if (this.is_multiple) {

        this.container.html('<ul class="chosen-choices"><li class="search-field"><input type="text" value="' + this.default_text + '" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chosen-drop"><ul class="chosen-results"></ul></div>');

      } else {

        this.container.html('<a class="chosen-single chosen-default"><span>' + this.default_text + '</span><div><b></b></div></a><div class="chosen-drop"><div class="chosen-search"><input type="text" autocomplete="off" /></div><ul class="chosen-results"></ul></div>');

      }

      this.form_field_jq.hide().after(this.container);

      this.dropdown = this.container.find('div.chosen-drop').first();

      this.search_field = this.container.find('input').first();

      this.search_results = this.container.find('ul.chosen-results').first();

      this.search_field_scale();

      this.search_no_results = this.container.find('li.no-results').first();

      if (this.is_multiple) {

        this.search_choices = this.container.find('ul.chosen-choices').first();

        this.search_container = this.container.find('li.search-field').first();

      } else {

        this.search_container = this.container.find('div.chosen-search').first();

        this.selected_item = this.container.find('.chosen-single').first();

      }

      this.results_build();

      this.set_tab_index();

      return this.set_label_behavior();

    };



    Chosen.prototype.on_ready = function() {

      return this.form_field_jq.trigger("chosen:ready", {

        chosen: this

      });

    };



    Chosen.prototype.register_observers = function() {

      var _this = this;

      this.container.bind('touchstart.chosen', function(evt) {

        _this.container_mousedown(evt);

        return evt.preventDefault();

      });

      this.container.bind('touchend.chosen', function(evt) {

        _this.container_mouseup(evt);

        return evt.preventDefault();

      });

      this.container.bind('mousedown.chosen', function(evt) {

        _this.container_mousedown(evt);

      });

      this.container.bind('mouseup.chosen', function(evt) {

        _this.container_mouseup(evt);

      });

      this.container.bind('mouseenter.chosen', function(evt) {

        _this.mouse_enter(evt);

      });

      this.container.bind('mouseleave.chosen', function(evt) {

        _this.mouse_leave(evt);

      });

      this.search_results.bind('mouseup.chosen', function(evt) {

        _this.search_results_mouseup(evt);

      });

      this.search_results.bind('mouseover.chosen', function(evt) {

        _this.search_results_mouseover(evt);

      });

      this.search_results.bind('mouseout.chosen', function(evt) {

        _this.search_results_mouseout(evt);

      });

      this.search_results.bind('mousewheel.chosen DOMMouseScroll.chosen', function(evt) {

        _this.search_results_mousewheel(evt);

      });

      this.search_results.bind('touchstart.chosen', function(evt) {

        _this.search_results_touchstart(evt);

      });

      this.search_results.bind('touchmove.chosen', function(evt) {

        _this.search_results_touchmove(evt);

      });

      this.search_results.bind('touchend.chosen', function(evt) {

        _this.search_results_touchend(evt);

      });

      this.form_field_jq.bind("chosen:updated.chosen", function(evt) {

        _this.results_update_field(evt);

      });

      this.form_field_jq.bind("chosen:activate.chosen", function(evt) {

        _this.activate_field(evt);

      });

      this.form_field_jq.bind("chosen:open.chosen", function(evt) {

        _this.container_mousedown(evt);

      });

      this.form_field_jq.bind("chosen:close.chosen", function(evt) {

        _this.input_blur(evt);

      });

      this.search_field.bind('blur.chosen', function(evt) {

        _this.input_blur(evt);

      });

      this.search_field.bind('keyup.chosen', function(evt) {

        _this.keyup_checker(evt);

      });

      this.search_field.bind('keydown.chosen', function(evt) {

        _this.keydown_checker(evt);

      });

      this.search_field.bind('focus.chosen', function(evt) {

        _this.input_focus(evt);

      });

      this.search_field.bind('cut.chosen', function(evt) {

        _this.clipboard_event_checker(evt);

      });

      this.search_field.bind('paste.chosen', function(evt) {

        _this.clipboard_event_checker(evt);

      });

      if (this.is_multiple) {

        return this.search_choices.bind('click.chosen', function(evt) {

          _this.choices_click(evt);

        });

      } else {

        return this.container.bind('click.chosen', function(evt) {

          evt.preventDefault();

        });

      }

    };



    Chosen.prototype.destroy = function() {

      $(this.container[0].ownerDocument).unbind("click.chosen", this.click_test_action);

      if (this.search_field[0].tabIndex) {

        this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;

      }

      this.container.remove();

      this.form_field_jq.removeData('chosen');

      return this.form_field_jq.show();

    };



    Chosen.prototype.search_field_disabled = function() {

      this.is_disabled = this.form_field_jq[0].disabled;

      if (this.is_disabled) {

        this.container.addClass('chosen-disabled');

        this.search_field[0].disabled = true;

        if (!this.is_multiple) {

          this.selected_item.unbind("focus.chosen", this.activate_action);

        }

        return this.close_field();

      } else {

        this.container.removeClass('chosen-disabled');

        this.search_field[0].disabled = false;

        if (!this.is_multiple) {

          return this.selected_item.bind("focus.chosen", this.activate_action);

        }

      }

    };



    Chosen.prototype.container_mousedown = function(evt) {

      if (!this.is_disabled) {

        if (evt && evt.type === "mousedown" && !this.results_showing) {

          evt.preventDefault();

        }

        if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {

          if (!this.active_field) {

            if (this.is_multiple) {

              this.search_field.val("");

            }

            $(this.container[0].ownerDocument).bind('click.chosen', this.click_test_action);

            this.results_show();

          } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chosen-single").length)) {

            evt.preventDefault();

            this.results_toggle();

          }

          return this.activate_field();

        }

      }

    };



    Chosen.prototype.container_mouseup = function(evt) {

      if (evt.target.nodeName === "ABBR" && !this.is_disabled) {

        return this.results_reset(evt);

      }

    };



    Chosen.prototype.search_results_mousewheel = function(evt) {

      var delta;

      if (evt.originalEvent) {

        delta = evt.originalEvent.deltaY || -evt.originalEvent.wheelDelta || evt.originalEvent.detail;

      }

      if (delta != null) {

        evt.preventDefault();

        if (evt.type === 'DOMMouseScroll') {

          delta = delta * 40;

        }

        return this.search_results.scrollTop(delta + this.search_results.scrollTop());

      }

    };



    Chosen.prototype.blur_test = function(evt) {

      if (!this.active_field && this.container.hasClass("chosen-container-active")) {

        return this.close_field();

      }

    };



    Chosen.prototype.close_field = function() {

      $(this.container[0].ownerDocument).unbind("click.chosen", this.click_test_action);

      this.active_field = false;

      this.results_hide();

      this.container.removeClass("chosen-container-active");

      this.clear_backstroke();

      this.show_search_field_default();

      return this.search_field_scale();

    };



    Chosen.prototype.activate_field = function() {

      this.container.addClass("chosen-container-active");

      this.active_field = true;

      this.search_field.val(this.search_field.val());

      return this.search_field.focus();

    };



    Chosen.prototype.test_active_click = function(evt) {

      var active_container;

      active_container = $(evt.target).closest('.chosen-container');

      if (active_container.length && this.container[0] === active_container[0]) {

        return this.active_field = true;

      } else {

        return this.close_field();

      }

    };



    Chosen.prototype.results_build = function() {

      this.parsing = true;

      this.selected_option_count = null;

      this.results_data = SelectParser.select_to_array(this.form_field);

      if (this.is_multiple) {

        this.search_choices.find("li.search-choice").remove();

      } else if (!this.is_multiple) {

        this.single_set_selected_text();

        if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {

          this.search_field[0].readOnly = true;

          this.container.addClass("chosen-container-single-nosearch");

        } else {

          this.search_field[0].readOnly = false;

          this.container.removeClass("chosen-container-single-nosearch");

        }

      }

      this.update_results_content(this.results_option_build({

        first: true

      }));

      this.search_field_disabled();

      this.show_search_field_default();

      this.search_field_scale();

      return this.parsing = false;

    };



    Chosen.prototype.result_do_highlight = function(el) {

      var high_bottom, high_top, maxHeight, visible_bottom, visible_top;

      if (el.length) {

        this.result_clear_highlight();

        this.result_highlight = el;

        this.result_highlight.addClass("highlighted");

        maxHeight = parseInt(this.search_results.css("maxHeight"), 10);

        visible_top = this.search_results.scrollTop();

        visible_bottom = maxHeight + visible_top;

        high_top = this.result_highlight.position().top + this.search_results.scrollTop();

        high_bottom = high_top + this.result_highlight.outerHeight();

        if (high_bottom >= visible_bottom) {

          return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);

        } else if (high_top < visible_top) {

          return this.search_results.scrollTop(high_top);

        }

      }

    };



    Chosen.prototype.result_clear_highlight = function() {

      if (this.result_highlight) {

        this.result_highlight.removeClass("highlighted");

      }

      return this.result_highlight = null;

    };



    Chosen.prototype.results_show = function() {

      if (this.is_multiple && this.max_selected_options <= this.choices_count()) {

        this.form_field_jq.trigger("chosen:maxselected", {

          chosen: this

        });

        return false;

      }

      this.container.addClass("chosen-with-drop");

      this.results_showing = true;

      this.search_field.focus();

      this.search_field.val(this.search_field.val());

      this.winnow_results();

      return this.form_field_jq.trigger("chosen:showing_dropdown", {

        chosen: this

      });

    };



    Chosen.prototype.update_results_content = function(content) {

      return this.search_results.html(content);

    };



    Chosen.prototype.results_hide = function() {

      if (this.results_showing) {

        this.result_clear_highlight();

        this.container.removeClass("chosen-with-drop");

        this.form_field_jq.trigger("chosen:hiding_dropdown", {

          chosen: this

        });

      }

      return this.results_showing = false;

    };



    Chosen.prototype.set_tab_index = function(el) {

      var ti;

      if (this.form_field.tabIndex) {

        ti = this.form_field.tabIndex;

        this.form_field.tabIndex = -1;

        return this.search_field[0].tabIndex = ti;

      }

    };



    Chosen.prototype.set_label_behavior = function() {

      var _this = this;

      this.form_field_label = this.form_field_jq.parents("label");

      if (!this.form_field_label.length && this.form_field.id.length) {

        this.form_field_label = $("label[for='" + this.form_field.id + "']");

      }

      if (this.form_field_label.length > 0) {

        return this.form_field_label.bind('click.chosen', function(evt) {

          if (_this.is_multiple) {

            return _this.container_mousedown(evt);

          } else {

            return _this.activate_field();

          }

        });

      }

    };



    Chosen.prototype.show_search_field_default = function() {

      if (this.is_multiple && this.choices_count() < 1 && !this.active_field) {

        this.search_field.val(this.default_text);

        return this.search_field.addClass("default");

      } else {

        this.search_field.val("");

        return this.search_field.removeClass("default");

      }

    };



    Chosen.prototype.search_results_mouseup = function(evt) {

      var target;

      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();

      if (target.length) {

        this.result_highlight = target;

        this.result_select(evt);

        return this.search_field.focus();

      }

    };



    Chosen.prototype.search_results_mouseover = function(evt) {

      var target;

      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();

      if (target) {

        return this.result_do_highlight(target);

      }

    };



    Chosen.prototype.search_results_mouseout = function(evt) {

      if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {

        return this.result_clear_highlight();

      }

    };



    Chosen.prototype.choice_build = function(item) {

      var choice, close_link,

        _this = this;

      choice = $('<li />', {

        "class": "search-choice"

      }).html("<span>" + (this.choice_label(item)) + "</span>");

      if (item.disabled) {

        choice.addClass('search-choice-disabled');

      } else {

        close_link = $('<a />', {

          "class": 'search-choice-close',

          'data-option-array-index': item.array_index

        });

        close_link.bind('click.chosen', function(evt) {

          return _this.choice_destroy_link_click(evt);

        });

        choice.append(close_link);

      }

      return this.search_container.before(choice);

    };



    Chosen.prototype.choice_destroy_link_click = function(evt) {

      evt.preventDefault();

      evt.stopPropagation();

      if (!this.is_disabled) {

        return this.choice_destroy($(evt.target));

      }

    };



    Chosen.prototype.choice_destroy = function(link) {

      if (this.result_deselect(link[0].getAttribute("data-option-array-index"))) {

        this.show_search_field_default();

        if (this.is_multiple && this.choices_count() > 0 && this.search_field.val().length < 1) {

          this.results_hide();

        }

        link.parents('li').first().remove();

        return this.search_field_scale();

      }

    };



    Chosen.prototype.results_reset = function() {

      this.reset_single_select_options();

      this.form_field.options[0].selected = true;

      this.single_set_selected_text();

      this.show_search_field_default();

      this.results_reset_cleanup();

      this.form_field_jq.trigger("change");

      if (this.active_field) {

        return this.results_hide();

      }

    };



    Chosen.prototype.results_reset_cleanup = function() {

      this.current_selectedIndex = this.form_field.selectedIndex;

      return this.selected_item.find("abbr").remove();

    };



    Chosen.prototype.result_select = function(evt) {

      var high, item;

      if (this.result_highlight) {

        high = this.result_highlight;

        this.result_clear_highlight();

        if (this.is_multiple && this.max_selected_options <= this.choices_count()) {

          this.form_field_jq.trigger("chosen:maxselected", {

            chosen: this

          });

          return false;

        }

        if (this.is_multiple) {

          high.removeClass("active-result");

        } else {

          this.reset_single_select_options();

        }

        high.addClass("result-selected");

        item = this.results_data[high[0].getAttribute("data-option-array-index")];

        item.selected = true;

        this.form_field.options[item.options_index].selected = true;

        this.selected_option_count = null;

        if (this.is_multiple) {

          this.choice_build(item);

        } else {

          this.single_set_selected_text(this.choice_label(item));

        }

        if (!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {

          this.results_hide();

        }

        this.show_search_field_default();

        if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {

          this.form_field_jq.trigger("change", {

            'selected': this.form_field.options[item.options_index].value

          });

        }

        this.current_selectedIndex = this.form_field.selectedIndex;

        evt.preventDefault();

        return this.search_field_scale();

      }

    };



    Chosen.prototype.single_set_selected_text = function(text) {

      if (text == null) {

        text = this.default_text;

      }

      if (text === this.default_text) {

        this.selected_item.addClass("chosen-default");

      } else {

        this.single_deselect_control_build();

        this.selected_item.removeClass("chosen-default");

      }

      return this.selected_item.find("span").html(text);

    };



    Chosen.prototype.result_deselect = function(pos) {

      var result_data;

      result_data = this.results_data[pos];

      if (!this.form_field.options[result_data.options_index].disabled) {

        result_data.selected = false;

        this.form_field.options[result_data.options_index].selected = false;

        this.selected_option_count = null;

        this.result_clear_highlight();

        if (this.results_showing) {

          this.winnow_results();

        }

        this.form_field_jq.trigger("change", {

          deselected: this.form_field.options[result_data.options_index].value

        });

        this.search_field_scale();

        return true;

      } else {

        return false;

      }

    };



    Chosen.prototype.single_deselect_control_build = function() {

      if (!this.allow_single_deselect) {

        return;

      }

      if (!this.selected_item.find("abbr").length) {

        this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");

      }

      return this.selected_item.addClass("chosen-single-with-deselect");

    };



    Chosen.prototype.get_search_text = function() {

      return $('<div/>').text($.trim(this.search_field.val())).html();

    };



    Chosen.prototype.winnow_results_set_highlight = function() {

      var do_high, selected_results;

      selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];

      do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();

      if (do_high != null) {

        return this.result_do_highlight(do_high);

      }

    };



    Chosen.prototype.no_results = function(terms) {

      var no_results_html;

      no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');

      no_results_html.find("span").first().html(terms);

      this.search_results.append(no_results_html);

      return this.form_field_jq.trigger("chosen:no_results", {

        chosen: this

      });

    };



    Chosen.prototype.no_results_clear = function() {

      return this.search_results.find(".no-results").remove();

    };



    Chosen.prototype.keydown_arrow = function() {

      var next_sib;

      if (this.results_showing && this.result_highlight) {

        next_sib = this.result_highlight.nextAll("li.active-result").first();

        if (next_sib) {

          return this.result_do_highlight(next_sib);

        }

      } else {

        return this.results_show();

      }

    };



    Chosen.prototype.keyup_arrow = function() {

      var prev_sibs;

      if (!this.results_showing && !this.is_multiple) {

        return this.results_show();

      } else if (this.result_highlight) {

        prev_sibs = this.result_highlight.prevAll("li.active-result");

        if (prev_sibs.length) {

          return this.result_do_highlight(prev_sibs.first());

        } else {

          if (this.choices_count() > 0) {

            this.results_hide();

          }

          return this.result_clear_highlight();

        }

      }

    };



    Chosen.prototype.keydown_backstroke = function() {

      var next_available_destroy;

      if (this.pending_backstroke) {

        this.choice_destroy(this.pending_backstroke.find("a").first());

        return this.clear_backstroke();

      } else {

        next_available_destroy = this.search_container.siblings("li.search-choice").last();

        if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {

          this.pending_backstroke = next_available_destroy;

          if (this.single_backstroke_delete) {

            return this.keydown_backstroke();

          } else {

            return this.pending_backstroke.addClass("search-choice-focus");

          }

        }

      }

    };



    Chosen.prototype.clear_backstroke = function() {

      if (this.pending_backstroke) {

        this.pending_backstroke.removeClass("search-choice-focus");

      }

      return this.pending_backstroke = null;

    };



    Chosen.prototype.keydown_checker = function(evt) {

      var stroke, _ref1;

      stroke = (_ref1 = evt.which) != null ? _ref1 : evt.keyCode;

      this.search_field_scale();

      if (stroke !== 8 && this.pending_backstroke) {

        this.clear_backstroke();

      }

      switch (stroke) {

        case 8:

          this.backstroke_length = this.search_field.val().length;

          break;

        case 9:

          if (this.results_showing && !this.is_multiple) {

            this.result_select(evt);

          }

          this.mouse_on_container = false;

          break;

        case 13:

          if (this.results_showing) {

            evt.preventDefault();

          }

          break;

        case 32:

          if (this.disable_search) {

            evt.preventDefault();

          }

          break;

        case 38:

          evt.preventDefault();

          this.keyup_arrow();

          break;

        case 40:

          evt.preventDefault();

          this.keydown_arrow();

          break;

      }

    };



    Chosen.prototype.search_field_scale = function() {

      var div, f_width, h, style, style_block, styles, w, _i, _len;

      if (this.is_multiple) {

        h = 0;

        w = 0;

        style_block = "position:absolute; left: -1000px; top: -1000px; display:none;";

        styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing'];

        for (_i = 0, _len = styles.length; _i < _len; _i++) {

          style = styles[_i];

          style_block += style + ":" + this.search_field.css(style) + ";";

        }

        div = $('<div />', {

          'style': style_block

        });

        div.text(this.search_field.val());

        $('body').append(div);

        w = div.width() + 25;

        div.remove();

        f_width = this.container.outerWidth();

        if (w > f_width - 10) {

          w = f_width - 10;

        }

        return this.search_field.css({

          'width': w + 'px'

        });

      }

    };



    return Chosen;



  })(AbstractChosen);



}).call(this);

