/*!
 * Bootstrap-select v1.13.1 (https://developer.snapappointments.com/bootstrap-select)
 *
 * Copyright 2012-2018 SnapAppointments, LLC
 * Licensed under MIT (https://github.com/snapappointments/bootstrap-select/blob/master/LICENSE)
 */

(function(root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(["jquery"], function(a0) {
      return (factory(a0));
    });
  } else if (typeof module === 'object' && module.exports) {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require("jquery"));
  } else {
    factory(root["jQuery"]);
  }
}(this, function(jQuery) {

  (function($) {
    'use strict';

    var testElement = document.createElement('_');

    testElement.classList.toggle('c3', false);

    // Polyfill for IE 10 and Firefox <24, where classList.toggle does not
    // support the second argument.
    if (testElement.classList.contains('c3')) {
      var _toggle = DOMTokenList.prototype.toggle;

      DOMTokenList.prototype.toggle = function(token, force) {
        if (1 in arguments && !this.contains(token) === !force) {
          return force;
        } else {
          return _toggle.call(this, token);
        }
      };
    }

    // shallow array comparison
    function isEqual(array1, array2) {
      return array1.length === array2.length && array1.every(function(element, index) {
        return element === array2[index];
      });
    }

    //<editor-fold desc="Shims">
    if (!String.prototype.startsWith) {
      (function() {
        'use strict'; // needed to support `apply`/`call` with `undefined`/`null`
        var defineProperty = (function() {
          // IE 8 only supports `Object.defineProperty` on DOM elements
          try {
            var object = {};
            var $defineProperty = Object.defineProperty;
            var result = $defineProperty(object, object, object) && $defineProperty;
          } catch (error) {}
          return result;
        }());
        var toString = {}.toString;
        var startsWith = function(search) {
          if (this == null) {
            throw new TypeError();
          }
          var string = String(this);
          if (search && toString.call(search) == '[object RegExp]') {
            throw new TypeError();
          }
          var stringLength = string.length;
          var searchString = String(search);
          var searchLength = searchString.length;
          var position = arguments.length > 1 ? arguments[1] : undefined;
          // `ToInteger`
          var pos = position ? Number(position) : 0;
          if (pos != pos) { // better `isNaN`
            pos = 0;
          }
          var start = Math.min(Math.max(pos, 0), stringLength);
          // Avoid the `indexOf` call if no match is possible
          if (searchLength + start > stringLength) {
            return false;
          }
          var index = -1;
          while (++index < searchLength) {
            if (string.charCodeAt(start + index) != searchString.charCodeAt(index)) {
              return false;
            }
          }
          return true;
        };
        if (defineProperty) {
          defineProperty(String.prototype, 'startsWith', {
            'value': startsWith,
            'configurable': true,
            'writable': true
          });
        } else {
          String.prototype.startsWith = startsWith;
        }
      }());
    }

    if (!Object.keys) {
      Object.keys = function(
        o, // object
        k, // key
        r // result array
      ) {
        // initialize object and result
        r = [];
        // iterate over object keys
        for (k in o)
          // fill result array with non-prototypical keys
          r.hasOwnProperty.call(o, k) && r.push(k);
        // return result
        return r;
      };
    }

    // much faster than $.val()
    function getSelectValues(select) {
      var result = [];
      var options = select && select.options;
      var opt;

      if (select.multiple) {
        for (var i = 0, len = options.length; i < len; i++) {
          opt = options[i];

          if (opt.selected) {
            result.push(opt.value || opt.text);
          }
        }
      } else {
        result = select.value;
      }

      return result;
    }

    // set data-selected on select element if the value has been programmatically selected
    // prior to initialization of bootstrap-select
    // * consider removing or replacing an alternative method *
    var valHooks = {
      useDefault: false,
      _set: $.valHooks.select.set
    };

    $.valHooks.select.set = function(elem, value) {
      if (value && !valHooks.useDefault) $(elem).data('selected', true);

      return valHooks._set.apply(this, arguments);
    };

    var changed_arguments = null;

    var EventIsSupported = (function() {
      try {
        new Event('change');
        return true;
      } catch (e) {
        return false;
      }
    })();

    $.fn.triggerNative = function(eventName) {
      var el = this[0],
        event;

      if (el.dispatchEvent) { // for modern browsers & IE9+
        if (EventIsSupported) {
          // For modern browsers
          event = new Event(eventName, {
            bubbles: true
          });
        } else {
          // For IE since it doesn't support Event constructor
          event = document.createEvent('Event');
          event.initEvent(eventName, true, false);
        }

        el.dispatchEvent(event);
      } else if (el.fireEvent) { // for IE8
        event = document.createEventObject();
        event.eventType = eventName;
        el.fireEvent('on' + eventName, event);
      } else {
        // fall back to jQuery.trigger
        this.trigger(eventName);
      }
    };
    //</editor-fold>

    function stringSearch(li, searchString, method, normalize) {
      var stringTypes = [
          'content',
          'subtext',
          'tokens'
        ],
        searchSuccess = false;

      for (var i = 0; i < stringTypes.length; i++) {
        var stringType = stringTypes[i],
          string = li[stringType];

        if (string) {
          string = string.toString();

          // Strip HTML tags. This isn't perfect, but it's much faster than any other method
          if (stringType === 'content') {
            string = string.replace(/<[^>]+>/g, '');
          }

          if (normalize) string = normalizeToBase(string);
          string = string.toUpperCase();

          if (method === 'contains') {
            searchSuccess = string.indexOf(searchString) >= 0;
          } else {
            searchSuccess = string.startsWith(searchString);
          }

          if (searchSuccess) break;
        }
      }

      return searchSuccess;
    }

    function toInteger(value) {
      return parseInt(value, 10) || 0;
    }

    /**
     * Remove all diatrics from the given text.
     * @access private
     * @param {String} text
     * @returns {String}
     */
    function normalizeToBase(text) {
      var rExps = [{
          re: /[\xC0-\xC6]/g,
          ch: "A"
        },
        {
          re: /[\xE0-\xE6]/g,
          ch: "a"
        },
        {
          re: /[\xC8-\xCB]/g,
          ch: "E"
        },
        {
          re: /[\xE8-\xEB]/g,
          ch: "e"
        },
        {
          re: /[\xCC-\xCF]/g,
          ch: "I"
        },
        {
          re: /[\xEC-\xEF]/g,
          ch: "i"
        },
        {
          re: /[\xD2-\xD6]/g,
          ch: "O"
        },
        {
          re: /[\xF2-\xF6]/g,
          ch: "o"
        },
        {
          re: /[\xD9-\xDC]/g,
          ch: "U"
        },
        {
          re: /[\xF9-\xFC]/g,
          ch: "u"
        },
        {
          re: /[\xC7-\xE7]/g,
          ch: "c"
        },
        {
          re: /[\xD1]/g,
          ch: "N"
        },
        {
          re: /[\xF1]/g,
          ch: "n"
        }
      ];
      $.each(rExps, function() {
        text = text ? text.replace(this.re, this.ch) : '';
      });
      return text;
    }


    // List of HTML entities for escaping.
    var escapeMap = {
      '&': '&amp;',
      '<': '&lt;',
      '>': '&gt;',
      '"': '&quot;',
      "'": '&#x27;',
      '`': '&#x60;'
    };

    var unescapeMap = {
      '&amp;': '&',
      '&lt;': '<',
      '&gt;': '>',
      '&quot;': '"',
      '&#x27;': "'",
      '&#x60;': '`'
    };

    // Functions for escaping and unescaping strings to/from HTML interpolation.
    var createEscaper = function(map) {
      var escaper = function(match) {
        return map[match];
      };
      // Regexes for identifying a key that needs to be escaped.
      var source = '(?:' + Object.keys(map).join('|') + ')';
      var testRegexp = RegExp(source);
      var replaceRegexp = RegExp(source, 'g');
      return function(string) {
        string = string == null ? '' : '' + string;
        return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
      };
    };

    var htmlEscape = createEscaper(escapeMap);
    var htmlUnescape = createEscaper(unescapeMap);

    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */

    var keyCodeMap = {
      32: ' ',
      48: '0',
      49: '1',
      50: '2',
      51: '3',
      52: '4',
      53: '5',
      54: '6',
      55: '7',
      56: '8',
      57: '9',
      59: ';',
      65: 'A',
      66: 'B',
      67: 'C',
      68: 'D',
      69: 'E',
      70: 'F',
      71: 'G',
      72: 'H',
      73: 'I',
      74: 'J',
      75: 'K',
      76: 'L',
      77: 'M',
      78: 'N',
      79: 'O',
      80: 'P',
      81: 'Q',
      82: 'R',
      83: 'S',
      84: 'T',
      85: 'U',
      86: 'V',
      87: 'W',
      88: 'X',
      89: 'Y',
      90: 'Z',
      96: '0',
      97: '1',
      98: '2',
      99: '3',
      100: '4',
      101: '5',
      102: '6',
      103: '7',
      104: '8',
      105: '9'
    };

    var keyCodes = {
      ESCAPE: 27, // KeyboardEvent.which value for Escape (Esc) key
      ENTER: 13, // KeyboardEvent.which value for Enter key
      SPACE: 32, // KeyboardEvent.which value for space key
      TAB: 9, // KeyboardEvent.which value for tab key
      ARROW_UP: 38, // KeyboardEvent.which value for up arrow key
      ARROW_DOWN: 40 // KeyboardEvent.which value for down arrow key
    }

    var version = {};

    try {
      version.full = ($.fn.dropdown.Constructor.VERSION || '').split(' ')[0].split('.');
      version.major = version.full[0];
    } catch (err) {
      console.error('There was an issue retrieving Bootstrap\'s version. Ensure Bootstrap is being loaded before bootstrap-select and there is no namespace collision.', err);
      version.major = '3';
    }

    var classNames = {
      DISABLED: 'disabled',
      DIVIDER: version.major === '4' ? 'dropdown-divider' : 'divider',
      SHOW: version.major === '4' ? 'show' : 'open',
      DROPUP: 'dropup',
      MENURIGHT: 'dropdown-menu-right',
      MENULEFT: 'dropdown-menu-left',
      // to-do: replace with more advanced template/customization options
      BUTTONCLASS: version.major === '4' ? 'btn-light' : 'btn-default',
      POPOVERHEADER: version.major === '4' ? 'popover-header' : 'popover-title'
    }

    var REGEXP_ARROW = new RegExp(keyCodes.ARROW_UP + '|' + keyCodes.ARROW_DOWN);
    var REGEXP_TAB_OR_ESCAPE = new RegExp('^' + keyCodes.TAB + '$|' + keyCodes.ESCAPE);
    var REGEXP_ENTER_OR_SPACE = new RegExp(keyCodes.ENTER + '|' + keyCodes.SPACE);

    var Selectpicker = function(element, options) {
      var that = this;

      // bootstrap-select has been initialized - revert valHooks.select.set back to its original function
      if (!valHooks.useDefault) {
        $.valHooks.select.set = valHooks._set;
        valHooks.useDefault = true;
      }

      this.$element = $(element);
      this.$newElement = null;
      this.$button = null;
      this.$menu = null;
      this.options = options;
      this.selectpicker = {
        main: {
          // store originalIndex (key) and newIndex (value) in this.selectpicker.main.map.newIndex for fast accessibility
          // allows us to do this.main.elements[this.selectpicker.main.map.newIndex[index]] to select an element based on the originalIndex
          map: {
            newIndex: {},
            originalIndex: {}
          }
        },
        current: {
          map: {}
        }, // current changes if a search is in progress
        search: {
          map: {}
        },
        view: {},
        keydown: {
          keyHistory: '',
          resetKeyHistory: {
            start: function() {
              return setTimeout(function() {
                that.selectpicker.keydown.keyHistory = '';
              }, 800);
            }
          }
        }
      };
      // If we have no title yet, try to pull it from the html title attribute (jQuery doesnt' pick it up as it's not a
      // data-attribute)
      if (this.options.title === null) {
        this.options.title = this.$element.attr('title');
      }

      // Format window padding
      var winPad = this.options.windowPadding;
      if (typeof winPad === 'number') {
        this.options.windowPadding = [winPad, winPad, winPad, winPad];
      }

      //Expose public methods
      this.val = Selectpicker.prototype.val;
      this.render = Selectpicker.prototype.render;
      this.refresh = Selectpicker.prototype.refresh;
      this.setStyle = Selectpicker.prototype.setStyle;
      this.selectAll = Selectpicker.prototype.selectAll;
      this.deselectAll = Selectpicker.prototype.deselectAll;
      this.destroy = Selectpicker.prototype.destroy;
      this.remove = Selectpicker.prototype.remove;
      this.show = Selectpicker.prototype.show;
      this.hide = Selectpicker.prototype.hide;

      this.init();
    };

    Selectpicker.VERSION = '1.13.1';

    // part of this is duplicated in i18n/defaults-en_US.js. Make sure to update both.
    Selectpicker.DEFAULTS = {
      noneSelectedText: 'Nothing selected',
      noneResultsText: 'No results matched {0}',
      countSelectedText: function(numSelected, numTotal) {
        return (numSelected == 1) ? "{0} item selected" : "{0} items selected";
      },
      maxOptionsText: function(numAll, numGroup) {
        return [
          (numAll == 1) ? 'Limit reached ({n} item max)' : 'Limit reached ({n} items max)',
          (numGroup == 1) ? 'Group limit reached ({n} item max)' : 'Group limit reached ({n} items max)'
        ];
      },
      selectAllText: 'Select All',
      deselectAllText: 'Deselect All',
      doneButton: false,
      doneButtonText: 'Close',
      multipleSeparator: ', ',
      styleBase: 'btn',
      style: 'btn-default',
      size: 'auto',
      title: null,
      selectedTextFormat: 'values',
      width: false,
      container: false,
      hideDisabled: false,
      showSubtext: false,
      showIcon: true,
      showContent: true,
      dropupAuto: true,
      header: false,
      liveSearch: false,
      liveSearchPlaceholder: null,
      liveSearchNormalize: false,
      liveSearchStyle: 'contains',
      actionsBox: false,
      iconBase: 'glyphicon',
      tickIcon: 'glyphicon-ok',
      showTick: false,
      template: {
        caret: '<span class="caret"></span>'
      },
      maxOptions: false,
      mobile: false,
      selectOnTab: false,
      dropdownAlignRight: false,
      windowPadding: 0,
      virtualScroll: 600
    };

    if (version.major === '4') {
      Selectpicker.DEFAULTS.style = 'btn-light';
      Selectpicker.DEFAULTS.iconBase = '';
      Selectpicker.DEFAULTS.tickIcon = 'bs-ok-default';
    }

    Selectpicker.prototype = {

      constructor: Selectpicker,

      init: function() {
        var that = this,
          id = this.$element.attr('id');

        this.$element.addClass('bs-select-hidden');

        this.multiple = this.$element.prop('multiple');
        this.autofocus = this.$element.prop('autofocus');
        this.$newElement = this.createDropdown();
        this.createLi();
        this.$element
          .after(this.$newElement)
          .prependTo(this.$newElement);
        this.$button = this.$newElement.children('button');
        this.$menu = this.$newElement.children('.dropdown-menu');
        this.$menuInner = this.$menu.children('.inner');
        this.$searchbox = this.$menu.find('input');

        this.$element.removeClass('bs-select-hidden');

        if (this.options.dropdownAlignRight === true) this.$menu.addClass(classNames.MENURIGHT);

        if (typeof id !== 'undefined') {
          this.$button.attr('data-id', id);
        }

        this.checkDisabled();
        this.clickListener();
        if (this.options.liveSearch) this.liveSearchListener();
        this.render();
        this.setStyle();
        this.setWidth();
        if (this.options.container) {
          this.selectPosition();
        } else {
          this.$element.on('hide.bs.select', function() {
            if (that.isVirtual()) {
              // empty menu on close
              var menuInner = that.$menuInner[0],
                emptyMenu = menuInner.firstChild.cloneNode(false);

              // replace the existing UL with an empty one - this is faster than $.empty() or innerHTML = ''
              menuInner.replaceChild(emptyMenu, menuInner.firstChild);
              menuInner.scrollTop = 0;
            }
          });
        }
        this.$menu.data('this', this);
        this.$newElement.data('this', this);
        if (this.options.mobile) this.mobile();

        this.$newElement.on({
          'hide.bs.dropdown': function(e) {
            that.$menuInner.attr('aria-expanded', false);
            that.$element.trigger('hide.bs.select', e);
          },
          'hidden.bs.dropdown': function(e) {
            that.$element.trigger('hidden.bs.select', e);
          },
          'show.bs.dropdown': function(e) {
            that.$menuInner.attr('aria-expanded', true);
            that.$element.trigger('show.bs.select', e);
          },
          'shown.bs.dropdown': function(e) {
            that.$element.trigger('shown.bs.select', e);
          }
        });

        if (that.$element[0].hasAttribute('required')) {
          this.$element.on('invalid', function() {
            that.$button.addClass('bs-invalid');

            that.$element.on({
              'shown.bs.select': function() {
                that.$element
                  .val(that.$element.val()) // set the value to hide the validation message in Chrome when menu is opened
                  .off('shown.bs.select');
              },
              'rendered.bs.select': function() {
                // if select is no longer invalid, remove the bs-invalid class
                if (this.validity.valid) that.$button.removeClass('bs-invalid');
                that.$element.off('rendered.bs.select');
              }
            });

            that.$button.on('blur.bs.select', function() {
              that.$element.focus().blur();
              that.$button.off('blur.bs.select');
            });
          });
        }

        setTimeout(function() {
          that.$element.trigger('loaded.bs.select');
        });
      },

      createDropdown: function() {
        // Options
        // If we are multiple or showTick option is set, then add the show-tick class
        var showTick = (this.multiple || this.options.showTick) ? ' show-tick' : '',
          autofocus = this.autofocus ? ' autofocus' : '';
        // Elements
        var header = this.options.header ? '<div class="' + classNames.POPOVERHEADER + '"><button type="button" class="close" aria-hidden="true">&times;</button>' + this.options.header + '</div>' : '';
        var searchbox = this.options.liveSearch ?
          '<div class="bs-searchbox">' +
          '<input type="text" class="form-control" autocomplete="off"' +
          (null === this.options.liveSearchPlaceholder ? '' : ' placeholder="' + htmlEscape(this.options.liveSearchPlaceholder) + '"') + ' role="textbox" aria-label="Search">' +
          '</div>' :
          '';
        var actionsbox = this.multiple && this.options.actionsBox ?
          '<div class="bs-actionsbox">' +
          '<div class="btn-group btn-group-sm btn-block">' +
          '<button type="button" class="actions-btn bs-select-all btn ' + classNames.BUTTONCLASS + '">' +
          this.options.selectAllText +
          '</button>' +
          '<button type="button" class="actions-btn bs-deselect-all btn ' + classNames.BUTTONCLASS + '">' +
          this.options.deselectAllText +
          '</button>' +
          '</div>' +
          '</div>' :
          '';
        var donebutton = this.multiple && this.options.doneButton ?
          '<div class="bs-donebutton">' +
          '<div class="btn-group btn-block">' +
          '<button type="button" class="btn btn-sm ' + classNames.BUTTONCLASS + '">' +
          this.options.doneButtonText +
          '</button>' +
          '</div>' +
          '</div>' :
          '';
        var drop =
          '<div class="dropdown bootstrap-select' + showTick + '">' +
          '<button type="button" class="' + this.options.styleBase + ' dropdown-toggle" data-toggle="dropdown"' + autofocus + ' role="button">' +
          '<div class="filter-option">' +
          '<div class="filter-option-inner">' +
          '<div class="filter-option-inner-inner"></div>' +
          '</div> ' +
          '</div>' +
          (version.major === '4' ?
            '' :
            '<span class="bs-caret">' +
            this.options.template.caret +
            '</span>'
          ) +
          '</button>' +
          '<div class="dropdown-menu ' + (version.major === '4' ? '' : classNames.SHOW) + '" role="combobox">' +
          header +
          searchbox +
          actionsbox +
          '<div class="inner ' + classNames.SHOW + '" role="listbox" aria-expanded="false" tabindex="-1">' +
          '<ul class="dropdown-menu inner ' + (version.major === '4' ? classNames.SHOW : '') + '">' +
          '</ul>' +
          '</div>' +
          donebutton +
          '</div>' +
          '</div>';

        return $(drop);
      },

      setPositionData: function() {
        this.selectpicker.view.canHighlight = [];

        for (var i = 0; i < this.selectpicker.current.data.length; i++) {
          var li = this.selectpicker.current.data[i],
            canHighlight = true;

          if (li.type === 'divider') {
            canHighlight = false;
            li.height = this.sizeInfo.dividerHeight;
          } else if (li.type === 'optgroup-label') {
            canHighlight = false;
            li.height = this.sizeInfo.dropdownHeaderHeight;
          } else {
            li.height = this.sizeInfo.liHeight;
          }

          if (li.disabled) canHighlight = false;

          this.selectpicker.view.canHighlight.push(canHighlight);

          li.position = (i === 0 ? 0 : this.selectpicker.current.data[i - 1].position) + li.height;
        }
      },

      isVirtual: function() {
        return (this.options.virtualScroll !== false) && this.selectpicker.main.elements.length >= this.options.virtualScroll || this.options.virtualScroll === true;
      },

      createView: function(isSearching, scrollTop) {
        scrollTop = scrollTop || 0;

        var that = this;

        this.selectpicker.current = isSearching ? this.selectpicker.search : this.selectpicker.main;

        var $lis;
        var active = [];
        var selected;
        var prevActive;
        var activeIndex;
        var prevActiveIndex;

        this.setPositionData();

        scroll(scrollTop, true);

        this.$menuInner.off('scroll.createView').on('scroll.createView', function(e, updateValue) {
          if (!that.noScroll) scroll(this.scrollTop, updateValue);
          that.noScroll = false;
        });

        function scroll(scrollTop, init) {
          var size = that.selectpicker.current.elements.length,
            chunks = [],
            chunkSize,
            chunkCount,
            firstChunk,
            lastChunk,
            currentChunk = undefined,
            prevPositions,
            positionIsDifferent,
            previousElements,
            menuIsDifferent = true,
            isVirtual = that.isVirtual();

          that.selectpicker.view.scrollTop = scrollTop;

          if (isVirtual === true) {
            // if an option that is encountered that is wider than the current menu width, update the menu width accordingly
            if (that.sizeInfo.hasScrollBar && that.$menu[0].offsetWidth > that.sizeInfo.totalMenuWidth) {
              that.sizeInfo.menuWidth = that.$menu[0].offsetWidth;
              that.sizeInfo.totalMenuWidth = that.sizeInfo.menuWidth + that.sizeInfo.scrollBarWidth;
              that.$menu.css('min-width', that.sizeInfo.menuWidth);
            }
          }

          chunkSize = Math.ceil(that.sizeInfo.menuInnerHeight / that.sizeInfo.liHeight * 1.5); // number of options in a chunk
          chunkCount = Math.round(size / chunkSize) || 1; // number of chunks

          for (var i = 0; i < chunkCount; i++) {
            var end_of_chunk = (i + 1) * chunkSize;

            if (i === chunkCount - 1) {
              end_of_chunk = size;
            }

            chunks[i] = [
              (i) * chunkSize + (!i ? 0 : 1),
              end_of_chunk
            ];

            if (!size) break;

            if (currentChunk === undefined && scrollTop <= that.selectpicker.current.data[end_of_chunk - 1].position - that.sizeInfo.menuInnerHeight) {
              currentChunk = i;
            }
          }

          if (currentChunk === undefined) currentChunk = 0;

          prevPositions = [that.selectpicker.view.position0, that.selectpicker.view.position1];

          // always display previous, current, and next chunks
          firstChunk = Math.max(0, currentChunk - 1);
          lastChunk = Math.min(chunkCount - 1, currentChunk + 1);

          that.selectpicker.view.position0 = Math.max(0, chunks[firstChunk][0]) || 0;
          that.selectpicker.view.position1 = Math.min(size, chunks[lastChunk][1]) || 0;

          positionIsDifferent = prevPositions[0] !== that.selectpicker.view.position0 || prevPositions[1] !== that.selectpicker.view.position1;

          if (that.activeIndex !== undefined) {
            prevActive = that.selectpicker.current.elements[that.selectpicker.current.map.newIndex[that.prevActiveIndex]];
            active = that.selectpicker.current.elements[that.selectpicker.current.map.newIndex[that.activeIndex]];
            selected = that.selectpicker.current.elements[that.selectpicker.current.map.newIndex[that.selectedIndex]];

            if (init) {
              if (that.activeIndex !== that.selectedIndex) {
                active.classList.remove('active');
                if (active.firstChild) active.firstChild.classList.remove('active');
              }
              that.activeIndex = undefined;
            }

            if (that.activeIndex && that.activeIndex !== that.selectedIndex && selected && selected.length) {
              selected.classList.remove('active');
              if (selected.firstChild) selected.firstChild.classList.remove('active');
            }
          }

          if (that.prevActiveIndex !== undefined && that.prevActiveIndex !== that.activeIndex && that.prevActiveIndex !== that.selectedIndex && prevActive && prevActive.length) {
            prevActive.classList.remove('active');
            if (prevActive.firstChild) prevActive.firstChild.classList.remove('active');
          }

          if (init || positionIsDifferent) {
            previousElements = that.selectpicker.view.visibleElements ? that.selectpicker.view.visibleElements.slice() : [];

            that.selectpicker.view.visibleElements = that.selectpicker.current.elements.slice(that.selectpicker.view.position0, that.selectpicker.view.position1);

            that.setOptionStatus();

            // if searching, check to make sure the list has actually been updated before updating DOM
            // this prevents unnecessary repaints
            if (isSearching || (isVirtual === false && init)) menuIsDifferent = !isEqual(previousElements, that.selectpicker.view.visibleElements);

            // if virtual scroll is disabled and not searching,
            // menu should never need to be updated more than once
            if ((init || isVirtual === true) && menuIsDifferent) {
              var menuInner = that.$menuInner[0],
                menuFragment = document.createDocumentFragment(),
                emptyMenu = menuInner.firstChild.cloneNode(false),
                marginTop,
                marginBottom,
                elements = isVirtual === true ? that.selectpicker.view.visibleElements : that.selectpicker.current.elements;

              // replace the existing UL with an empty one - this is faster than $.empty()
              menuInner.replaceChild(emptyMenu, menuInner.firstChild);

              for (var i = 0, visibleElementsLen = elements.length; i < visibleElementsLen; i++) {
                menuFragment.appendChild(elements[i]);
              }

              if (isVirtual === true) {
                marginTop = (that.selectpicker.view.position0 === 0 ? 0 : that.selectpicker.current.data[that.selectpicker.view.position0 - 1].position),
                  marginBottom = (that.selectpicker.view.position1 > size - 1 ? 0 : that.selectpicker.current.data[size - 1].position - that.selectpicker.current.data[that.selectpicker.view.position1 - 1].position);

                menuInner.firstChild.style.marginTop = marginTop + 'px';
                menuInner.firstChild.style.marginBottom = marginBottom + 'px';
              }

              menuInner.firstChild.appendChild(menuFragment);
            }
          }

          that.prevActiveIndex = that.activeIndex;

          if (!that.options.liveSearch) {
            that.$menuInner.focus();
          } else if (isSearching && init) {
            var index = 0,
              newActive;

            if (!that.selectpicker.view.canHighlight[index]) {
              index = 1 + that.selectpicker.view.canHighlight.slice(1).indexOf(true);
            }

            newActive = that.selectpicker.view.visibleElements[index];

            if (that.selectpicker.view.currentActive) {
              that.selectpicker.view.currentActive.classList.remove('active');
              if (that.selectpicker.view.currentActive.firstChild) that.selectpicker.view.currentActive.firstChild.classList.remove('active');
            }

            if (newActive) {
              newActive.classList.add('active');
              if (newActive.firstChild) newActive.firstChild.classList.add('active');
            }

            that.activeIndex = that.selectpicker.current.map.originalIndex[index];
          }
        }

        $(window).off('resize.createView').on('resize.createView', function() {
          scroll(that.$menuInner[0].scrollTop);
        });
      },

      createLi: function() {
        var that = this,
          mainElements = [],
          widestOption,
          availableOptionsCount = 0,
          widestOptionLength = 0,
          mainData = [],
          optID = 0,
          headerIndex = 0,
          liIndex = -1; // increment liIndex whenever a new <li> element is created to ensure newIndex is correct

        if (!this.selectpicker.view.titleOption) this.selectpicker.view.titleOption = document.createElement('option');

        var elementTemplates = {
            span: document.createElement('span'),
            subtext: document.createElement('small'),
            a: document.createElement('a'),
            li: document.createElement('li'),
            whitespace: document.createTextNode("\u00A0")
          },
          checkMark = elementTemplates.span.cloneNode(false),
          fragment = document.createDocumentFragment();

        checkMark.className = that.options.iconBase + ' ' + that.options.tickIcon + ' check-mark';
        elementTemplates.a.appendChild(checkMark);
        elementTemplates.a.setAttribute('role', 'option');

        elementTemplates.subtext.className = 'text-muted';

        elementTemplates.text = elementTemplates.span.cloneNode(false);
        elementTemplates.text.className = 'text';

        // Helper functions
        /**
         * @param content
         * @param [index]
         * @param [classes]
         * @param [optgroup]
         * @returns {HTMLElement}
         */
        var generateLI = function(content, index, classes, optgroup) {
          var li = elementTemplates.li.cloneNode(false);

          if (content) {
            if (content.nodeType === 1 || content.nodeType === 11) {
              li.appendChild(content);
            } else {
              li.innerHTML = content;
            }
          }

          if (typeof classes !== 'undefined' && '' !== classes) li.className = classes;
          if (typeof optgroup !== 'undefined' && null !== optgroup) li.classList.add('optgroup-' + optgroup);

          return li;
        };

        /**
         * @param text
         * @param [classes]
         * @param [inline]
         * @returns {string}
         */
        var generateA = function(text, classes, inline) {
          var a = elementTemplates.a.cloneNode(true);

          if (text) {
            if (text.nodeType === 11) {
              a.appendChild(text);
            } else {
              a.insertAdjacentHTML('beforeend', text);
            }
          }

          if (typeof classes !== 'undefined' & '' !== classes) a.className = classes;
          if (version.major === '4') a.classList.add('dropdown-item');
          if (inline) a.setAttribute('style', inline);

          return a;
        };

        var generateText = function(options) {
          var textElement = elementTemplates.text.cloneNode(false),
            optionSubtextElement,
            optionIconElement;

          if (options.optionContent) {
            textElement.innerHTML = options.optionContent;
          } else {
            textElement.textContent = options.text;

            if (options.optionIcon) {
              var whitespace = elementTemplates.whitespace.cloneNode(false);

              optionIconElement = elementTemplates.span.cloneNode(false);
              optionIconElement.className = that.options.iconBase + ' ' + options.optionIcon;

              fragment.appendChild(optionIconElement);
              fragment.appendChild(whitespace);
            }

            if (options.optionSubtext) {
              optionSubtextElement = elementTemplates.subtext.cloneNode(false);
              optionSubtextElement.innerHTML = options.optionSubtext;
              textElement.appendChild(optionSubtextElement);
            }
          }

          fragment.appendChild(textElement);

          return fragment;
        };

        var generateLabel = function(options) {
          var labelTextElement = elementTemplates.text.cloneNode(false),
            labelSubtextElement,
            labelIconElement;

          labelTextElement.textContent = options.labelEscaped;

          if (options.labelIcon) {
            var whitespace = elementTemplates.whitespace.cloneNode(false);

            labelIconElement = elementTemplates.span.cloneNode(false);
            labelIconElement.className = that.options.iconBase + ' ' + options.labelIcon;

            fragment.appendChild(labelIconElement);
            fragment.appendChild(whitespace);
          }

          if (options.labelSubtext) {
            labelSubtextElement = elementTemplates.subtext.cloneNode(false);
            labelSubtextElement.textContent = options.labelSubtext;
            labelTextElement.appendChild(labelSubtextElement);
          }

          fragment.appendChild(labelTextElement);

          return fragment;
        }

        if (this.options.title && !this.multiple) {
          // this option doesn't create a new <li> element, but does add a new option, so liIndex is decreased
          // since newIndex is recalculated on every refresh, liIndex needs to be decreased even if the titleOption is already appended
          liIndex--;

          var element = this.$element[0],
            isSelected = false,
            titleNotAppended = !this.selectpicker.view.titleOption.parentNode;

          if (titleNotAppended) {
            // Use native JS to prepend option (faster)
            this.selectpicker.view.titleOption.className = 'bs-title-option';
            this.selectpicker.view.titleOption.value = '';

            // Check if selected or data-selected attribute is already set on an option. If not, select the titleOption option.
            // the selected item may have been changed by user or programmatically before the bootstrap select plugin runs,
            // if so, the select will have the data-selected attribute
            var $opt = $(element.options[element.selectedIndex]);
            isSelected = $opt.attr('selected') === undefined && this.$element.data('selected') === undefined;
          }

          if (titleNotAppended || this.selectpicker.view.titleOption.index !== 0) {
            element.insertBefore(this.selectpicker.view.titleOption, element.firstChild);
          }

          // Set selected *after* appending to select,
          // otherwise the option doesn't get selected in IE
          // set using selectedIndex, as setting the selected attr to true here doesn't work in IE11
          if (isSelected) element.selectedIndex = 0;
        }

        var $selectOptions = this.$element.find('option');

        $selectOptions.each(function(index) {
          var $this = $(this);

          liIndex++;

          if ($this.hasClass('bs-title-option')) return;

          var thisData = $this.data();

          // Get the class and text for the option
          var optionClass = this.className || '',
            inline = htmlEscape(this.style.cssText),
            optionContent = thisData.content,
            text = this.textContent,
            tokens = thisData.tokens,
            subtext = thisData.subtext,
            icon = thisData.icon,
            $parent = $this.parent(),
            parent = $parent[0],
            isOptgroup = parent.tagName === 'OPTGROUP',
            isOptgroupDisabled = isOptgroup && parent.disabled,
            isDisabled = this.disabled || isOptgroupDisabled,
            prevHiddenIndex,
            showDivider = this.previousElementSibling && this.previousElementSibling.tagName === 'OPTGROUP',
            textElement;

          var parentData = $parent.data();

          if (thisData.hidden === true || that.options.hideDisabled && (isDisabled && !isOptgroup || isOptgroupDisabled)) {
            // set prevHiddenIndex - the index of the first hidden option in a group of hidden options
            // used to determine whether or not a divider should be placed after an optgroup if there are
            // hidden options between the optgroup and the first visible option
            prevHiddenIndex = thisData.prevHiddenIndex;
            $this.next().data('prevHiddenIndex', (prevHiddenIndex !== undefined ? prevHiddenIndex : index));

            liIndex--;

            // if previous element is not an optgroup
            if (!showDivider) {
              if (prevHiddenIndex !== undefined) {
                // select the element **before** the first hidden element in the group
                var prevHidden = $selectOptions[prevHiddenIndex].previousElementSibling;

                if (prevHidden && prevHidden.tagName === 'OPTGROUP' && !prevHidden.disabled) {
                  showDivider = true;
                }
              }
            }

            if (showDivider && mainData[mainData.length - 1].type !== 'divider') {
              liIndex++;
              mainElements.push(
                generateLI(
                  false,
                  null,
                  classNames.DIVIDER,
                  optID + 'div'
                )
              );
              mainData.push({
                type: 'divider',
                optID: optID,
                originalIndex: index
              });
            }

            return;
          }

          if (isOptgroup && thisData.divider !== true) {
            if (that.options.hideDisabled && isDisabled) {
              if (parentData.allOptionsDisabled === undefined) {
                var $options = $parent.children();
                $parent.data('allOptionsDisabled', $options.filter(':disabled').length === $options.length);
              }

              if ($parent.data('allOptionsDisabled')) {
                liIndex--;
                return;
              }
            }

            var optGroupClass = ' ' + parent.className || '';

            if (!this.previousElementSibling) { // Is it the first option of the optgroup?
              optID += 1;

              // Get the opt group label
              var label = parent.label,
                labelEscaped = htmlEscape(label),
                labelSubtext = parentData.subtext,
                labelIcon = parentData.icon;

              if (index !== 0 && mainElements.length > 0) { // Is it NOT the first option of the select && are there elements in the dropdown?
                liIndex++;
                mainElements.push(
                  generateLI(
                    false,
                    null,
                    classNames.DIVIDER,
                    optID + 'div'
                  )
                );
                mainData.push({
                  type: 'divider',
                  optID: optID,
                  originalIndex: index
                });
              }
              liIndex++;

              var labelElement = generateLabel({
                labelEscaped: labelEscaped,
                labelSubtext: labelSubtext,
                labelIcon: labelIcon
              });

              mainElements.push(generateLI(labelElement, null, 'dropdown-header' + optGroupClass, optID));
              mainData.push({
                content: labelEscaped,
                subtext: labelSubtext,
                type: 'optgroup-label',
                optID: optID,
                originalIndex: index
              });

              headerIndex = liIndex - 1;
            }

            if (that.options.hideDisabled && isDisabled || thisData.hidden === true) {
              liIndex--;
              return;
            }

            textElement = generateText({
              text: text,
              optionContent: optionContent,
              optionSubtext: subtext,
              optionIcon: icon
            });

            mainElements.push(generateLI(generateA(textElement, 'opt ' + optionClass + optGroupClass, inline), index, '', optID));
            mainData.push({
              content: optionContent || text,
              subtext: subtext,
              tokens: tokens,
              type: 'option',
              optID: optID,
              headerIndex: headerIndex,
              lastIndex: headerIndex + parent.childElementCount,
              originalIndex: index,
              data: thisData
            });

            availableOptionsCount++;
          } else if (thisData.divider === true) {
            mainElements.push(generateLI(false, index, 'divider'));
            mainData.push({
              type: 'divider',
              originalIndex: index
            });
          } else {
            // if previous element is not an optgroup and hideDisabled is true
            if (!showDivider && that.options.hideDisabled) {
              prevHiddenIndex = thisData.prevHiddenIndex;

              if (prevHiddenIndex !== undefined) {
                // select the element **before** the first hidden element in the group
                var prevHidden = $selectOptions[prevHiddenIndex].previousElementSibling;

                if (prevHidden && prevHidden.tagName === 'OPTGROUP' && !prevHidden.disabled) {
                  showDivider = true;
                }
              }
            }

            if (showDivider && mainData[mainData.length - 1].type !== 'divider') {
              liIndex++;
              mainElements.push(
                generateLI(
                  false,
                  null,
                  classNames.DIVIDER,
                  optID + 'div'
                )
              );
              mainData.push({
                type: 'divider',
                optID: optID,
                originalIndex: index
              });
            }

            textElement = generateText({
              text: text,
              optionContent: optionContent,
              optionSubtext: subtext,
              optionIcon: icon
            });

            mainElements.push(generateLI(generateA(textElement, optionClass, inline), index));
            mainData.push({
              content: optionContent || text,
              subtext: subtext,
              tokens: tokens,
              type: 'option',
              originalIndex: index,
              data: thisData
            });

            availableOptionsCount++;
          }

          that.selectpicker.main.map.newIndex[index] = liIndex;
          that.selectpicker.main.map.originalIndex[liIndex] = index;

          // get the most recent option info added to mainData
          var _mainDataLast = mainData[mainData.length - 1];

          _mainDataLast.disabled = isDisabled;

          var combinedLength = 0;

          // count the number of characters in the option - not perfect, but should work in most cases
          if (_mainDataLast.content) combinedLength += _mainDataLast.content.length;
          if (_mainDataLast.subtext) combinedLength += _mainDataLast.subtext.length;
          // if there is an icon, ensure this option's width is checked
          if (icon) combinedLength += 1;

          if (combinedLength > widestOptionLength) {
            widestOptionLength = combinedLength;

            // guess which option is the widest
            // use this when calculating menu width
            // not perfect, but it's fast, and the width will be updating accordingly when scrolling
            widestOption = mainElements[mainElements.length - 1];
          }
        });

        this.selectpicker.main.elements = mainElements;
        this.selectpicker.main.data = mainData;

        this.selectpicker.current = this.selectpicker.main;

        this.selectpicker.view.widestOption = widestOption;
        this.selectpicker.view.availableOptionsCount = availableOptionsCount; // faster way to get # of available options without filter
      },

      findLis: function() {
        return this.$menuInner.find('.inner > li');
      },

      render: function() {
        var that = this,
          $selectOptions = this.$element.find('option'),
          selectedItems = [],
          selectedItemsInTitle = [];

        this.togglePlaceholder();

        this.tabIndex();

        for (var i = 0, len = this.selectpicker.main.elements.length; i < len; i++) {
          var index = this.selectpicker.main.map.originalIndex[i],
            option = $selectOptions[index];

          if (option && option.selected) {
            selectedItems.push(option);

            if (selectedItemsInTitle.length < 100 && that.options.selectedTextFormat !== 'count' || selectedItems.length === 1) {
              if (that.options.hideDisabled && (option.disabled || option.parentNode.tagName === 'OPTGROUP' && option.parentNode.disabled)) return;

              var thisData = this.selectpicker.main.data[i].data,
                icon = thisData.icon && that.options.showIcon ? '<i class="' + that.options.iconBase + ' ' + thisData.icon + '"></i> ' : '',
                subtext,
                titleItem;

              if (that.options.showSubtext && thisData.subtext && !that.multiple) {
                subtext = ' <small class="text-muted">' + thisData.subtext + '</small>';
              } else {
                subtext = '';
              }

              if (option.title) {
                titleItem = option.title;
              } else if (thisData.content && that.options.showContent) {
                titleItem = thisData.content.toString();
              } else {
                titleItem = icon + option.innerHTML.trim() + subtext;
              }

              selectedItemsInTitle.push(titleItem);
            }
          }
        }

        //Fixes issue in IE10 occurring when no default option is selected and at least one option is disabled
        //Convert all the values into a comma delimited string
        var title = !this.multiple ? selectedItemsInTitle[0] : selectedItemsInTitle.join(this.options.multipleSeparator);

        // add ellipsis
        if (selectedItems.length > 50) title += '...';

        // If this is a multiselect, and selectedTextFormat is count, then show 1 of 2 selected etc..
        if (this.multiple && this.options.selectedTextFormat.indexOf('count') !== -1) {
          var max = this.options.selectedTextFormat.split('>');

          if ((max.length > 1 && selectedItems.length > max[1]) || (max.length === 1 && selectedItems.length >= 2)) {
            var totalCount = this.selectpicker.view.availableOptionsCount,
              tr8nText = (typeof this.options.countSelectedText === 'function') ? this.options.countSelectedText(selectedItems.length, totalCount) : this.options.countSelectedText;

            title = tr8nText.replace('{0}', selectedItems.length.toString()).replace('{1}', totalCount.toString());
          }
        }

        if (this.options.title == undefined) {
          // use .attr to ensure undefined is returned if title attribute is not set
          this.options.title = this.$element.attr('title');
        }

        if (this.options.selectedTextFormat == 'static') {
          title = this.options.title;
        }

        //If we dont have a title, then use the default, or if nothing is set at all, use the not selected text
        if (!title) {
          title = typeof this.options.title !== 'undefined' ? this.options.title : this.options.noneSelectedText;
        }

        //strip all HTML tags and trim the result, then unescape any escaped tags
        this.$button[0].title = htmlUnescape(title.replace(/<[^>]*>?/g, '').trim());
        this.$button.find('.filter-option-inner-inner')[0].innerHTML = title;

        this.$element.trigger('rendered.bs.select');
      },

      /**
       * @param [style]
       * @param [status]
       */
      setStyle: function(style, status) {
        if (this.$element.attr('class')) {
          this.$newElement.addClass(this.$element.attr('class').replace(/selectpicker|mobile-device|bs-select-hidden|validate\[.*\]/gi, ''));
        }

        var buttonClass = style ? style : this.options.style;

        if (status == 'add') {
          this.$button.addClass(buttonClass);
        } else if (status == 'remove') {
          this.$button.removeClass(buttonClass);
        } else {
          this.$button.removeClass(this.options.style);
          this.$button.addClass(buttonClass);
        }
      },

      liHeight: function(refresh) {
        if (!refresh && (this.options.size === false || this.sizeInfo)) return;

        if (!this.sizeInfo) this.sizeInfo = {};

        var newElement = document.createElement('div'),
          menu = document.createElement('div'),
          menuInner = document.createElement('div'),
          menuInnerInner = document.createElement('ul'),
          divider = document.createElement('li'),
          dropdownHeader = document.createElement('li'),
          li = document.createElement('li'),
          a = document.createElement('a'),
          text = document.createElement('span'),
          header = this.options.header && this.$menu.find('.' + classNames.POPOVERHEADER).length > 0 ? this.$menu.find('.' + classNames.POPOVERHEADER)[0].cloneNode(true) : null,
          search = this.options.liveSearch ? document.createElement('div') : null,
          actions = this.options.actionsBox && this.multiple && this.$menu.find('.bs-actionsbox').length > 0 ? this.$menu.find('.bs-actionsbox')[0].cloneNode(true) : null,
          doneButton = this.options.doneButton && this.multiple && this.$menu.find('.bs-donebutton').length > 0 ? this.$menu.find('.bs-donebutton')[0].cloneNode(true) : null;

        this.sizeInfo.selectWidth = this.$newElement[0].offsetWidth;

        text.className = 'text';
        a.className = 'dropdown-item';
        newElement.className = this.$menu[0].parentNode.className + ' ' + classNames.SHOW;
        newElement.style.width = this.sizeInfo.selectWidth + 'px';
        menu.className = 'dropdown-menu ' + classNames.SHOW;
        menuInner.className = 'inner ' + classNames.SHOW;
        menuInnerInner.className = 'dropdown-menu inner ' + (version.major === '4' ? classNames.SHOW : '');
        divider.className = classNames.DIVIDER;
        dropdownHeader.className = 'dropdown-header';

        text.appendChild(document.createTextNode('Inner text'));
        a.appendChild(text);
        li.appendChild(a);
        dropdownHeader.appendChild(text.cloneNode(true));

        if (this.selectpicker.view.widestOption) {
          menuInnerInner.appendChild(this.selectpicker.view.widestOption.cloneNode(true));
        }

        menuInnerInner.appendChild(li);
        menuInnerInner.appendChild(divider);
        menuInnerInner.appendChild(dropdownHeader);
        if (header) menu.appendChild(header);
        if (search) {
          var input = document.createElement('input');
          search.className = 'bs-searchbox';
          input.className = 'form-control';
          search.appendChild(input);
          menu.appendChild(search);
        }
        if (actions) menu.appendChild(actions);
        menuInner.appendChild(menuInnerInner);
        menu.appendChild(menuInner);
        if (doneButton) menu.appendChild(doneButton);
        newElement.appendChild(menu);

        document.body.appendChild(newElement);

        var liHeight = a.offsetHeight,
          dropdownHeaderHeight = dropdownHeader ? dropdownHeader.offsetHeight : 0,
          headerHeight = header ? header.offsetHeight : 0,
          searchHeight = search ? search.offsetHeight : 0,
          actionsHeight = actions ? actions.offsetHeight : 0,
          doneButtonHeight = doneButton ? doneButton.offsetHeight : 0,
          dividerHeight = $(divider).outerHeight(true),
          // fall back to jQuery if getComputedStyle is not supported
          menuStyle = window.getComputedStyle ? window.getComputedStyle(menu) : false,
          menuWidth = menu.offsetWidth,
          $menu = menuStyle ? null : $(menu),
          menuPadding = {
            vert: toInteger(menuStyle ? menuStyle.paddingTop : $menu.css('paddingTop')) +
              toInteger(menuStyle ? menuStyle.paddingBottom : $menu.css('paddingBottom')) +
              toInteger(menuStyle ? menuStyle.borderTopWidth : $menu.css('borderTopWidth')) +
              toInteger(menuStyle ? menuStyle.borderBottomWidth : $menu.css('borderBottomWidth')),
            horiz: toInteger(menuStyle ? menuStyle.paddingLeft : $menu.css('paddingLeft')) +
              toInteger(menuStyle ? menuStyle.paddingRight : $menu.css('paddingRight')) +
              toInteger(menuStyle ? menuStyle.borderLeftWidth : $menu.css('borderLeftWidth')) +
              toInteger(menuStyle ? menuStyle.borderRightWidth : $menu.css('borderRightWidth'))
          },
          menuExtras = {
            vert: menuPadding.vert +
              toInteger(menuStyle ? menuStyle.marginTop : $menu.css('marginTop')) +
              toInteger(menuStyle ? menuStyle.marginBottom : $menu.css('marginBottom')) + 2,
            horiz: menuPadding.horiz +
              toInteger(menuStyle ? menuStyle.marginLeft : $menu.css('marginLeft')) +
              toInteger(menuStyle ? menuStyle.marginRight : $menu.css('marginRight')) + 2
          },
          scrollBarWidth;

        menuInner.style.overflowY = 'scroll';

        scrollBarWidth = menu.offsetWidth - menuWidth;

        document.body.removeChild(newElement);

        this.sizeInfo.liHeight = liHeight;
        this.sizeInfo.dropdownHeaderHeight = dropdownHeaderHeight;
        this.sizeInfo.headerHeight = headerHeight;
        this.sizeInfo.searchHeight = searchHeight;
        this.sizeInfo.actionsHeight = actionsHeight;
        this.sizeInfo.doneButtonHeight = doneButtonHeight;
        this.sizeInfo.dividerHeight = dividerHeight;
        this.sizeInfo.menuPadding = menuPadding;
        this.sizeInfo.menuExtras = menuExtras;
        this.sizeInfo.menuWidth = menuWidth;
        this.sizeInfo.totalMenuWidth = this.sizeInfo.menuWidth;
        this.sizeInfo.scrollBarWidth = scrollBarWidth;
        this.sizeInfo.selectHeight = this.$newElement[0].offsetHeight;

        this.setPositionData();
      },

      getSelectPosition: function() {
        var that = this,
          $window = $(window),
          pos = that.$newElement.offset(),
          $container = $(that.options.container),
          containerPos;

        if (that.options.container && !$container.is('body')) {
          containerPos = $container.offset();
          containerPos.top += parseInt($container.css('borderTopWidth'));
          containerPos.left += parseInt($container.css('borderLeftWidth'));
        } else {
          containerPos = {
            top: 0,
            left: 0
          };
        }

        var winPad = that.options.windowPadding;

        this.sizeInfo.selectOffsetTop = pos.top - containerPos.top - $window.scrollTop();
        this.sizeInfo.selectOffsetBot = $window.height() - this.sizeInfo.selectOffsetTop - this.sizeInfo['selectHeight'] - containerPos.top - winPad[2];
        this.sizeInfo.selectOffsetLeft = pos.left - containerPos.left - $window.scrollLeft();
        this.sizeInfo.selectOffsetRight = $window.width() - this.sizeInfo.selectOffsetLeft - this.sizeInfo['selectWidth'] - containerPos.left - winPad[1];
        this.sizeInfo.selectOffsetTop -= winPad[0];
        this.sizeInfo.selectOffsetLeft -= winPad[3];
      },

      setMenuSize: function(isAuto) {
        this.getSelectPosition();

        var selectWidth = this.sizeInfo['selectWidth'],
          liHeight = this.sizeInfo['liHeight'],
          headerHeight = this.sizeInfo['headerHeight'],
          searchHeight = this.sizeInfo['searchHeight'],
          actionsHeight = this.sizeInfo['actionsHeight'],
          doneButtonHeight = this.sizeInfo['doneButtonHeight'],
          divHeight = this.sizeInfo['dividerHeight'],
          menuPadding = this.sizeInfo['menuPadding'],
          menuInnerHeight,
          menuHeight,
          divLength = 0,
          minHeight,
          _minHeight,
          maxHeight,
          menuInnerMinHeight,
          estimate;

        if (this.options.dropupAuto) {
          // Get the estimated height of the menu without scrollbars.
          // This is useful for smaller menus, where there might be plenty of room
          // below the button without setting dropup, but we can't know
          // the exact height of the menu until createView is called later
          estimate = liHeight * this.selectpicker.current.elements.length + menuPadding.vert;
          this.$newElement.toggleClass(classNames.DROPUP, this.sizeInfo.selectOffsetTop - this.sizeInfo.selectOffsetBot > this.sizeInfo.menuExtras.vert && estimate + this.sizeInfo.menuExtras.vert + 50 > this.sizeInfo.selectOffsetBot);
        }

        if (this.options.size === 'auto') {
          _minHeight = this.selectpicker.current.elements.length > 3 ? this.sizeInfo.liHeight * 3 + this.sizeInfo.menuExtras.vert - 2 : 0;
          menuHeight = this.sizeInfo.selectOffsetBot - this.sizeInfo.menuExtras.vert;
          minHeight = _minHeight + headerHeight + searchHeight + actionsHeight + doneButtonHeight;
          menuInnerMinHeight = Math.max(_minHeight - menuPadding.vert, 0);

          if (this.$newElement.hasClass(classNames.DROPUP)) {
            menuHeight = this.sizeInfo.selectOffsetTop - this.sizeInfo.menuExtras.vert;
          }

          maxHeight = menuHeight;
          menuInnerHeight = menuHeight - headerHeight - searchHeight - actionsHeight - doneButtonHeight - menuPadding.vert;
        } else if (this.options.size && this.options.size != 'auto' && this.selectpicker.current.elements.length > this.options.size) {
          for (var i = 0; i < this.options.size; i++) {
            if (this.selectpicker.current.data[i].type === 'divider') divLength++;
          }

          menuHeight = liHeight * this.options.size + divLength * divHeight + menuPadding.vert;
          menuInnerHeight = menuHeight - menuPadding.vert;
          maxHeight = menuHeight + headerHeight + searchHeight + actionsHeight + doneButtonHeight;
          minHeight = menuInnerMinHeight = '';
        }

        if (this.options.dropdownAlignRight === 'auto') {
          this.$menu.toggleClass(classNames.MENURIGHT, this.sizeInfo.selectOffsetLeft > this.sizeInfo.selectOffsetRight && this.sizeInfo.selectOffsetRight < (this.$menu[0].offsetWidth - selectWidth));
        }

        this.$menu.css({
          'max-height': maxHeight + 'px',
          'overflow': 'hidden',
          'min-height': minHeight + 'px'
        });

        this.$menuInner.css({
          'max-height': menuInnerHeight + 'px',
          'overflow-y': 'auto',
          'min-height': menuInnerMinHeight + 'px'
        });

        this.sizeInfo['menuInnerHeight'] = menuInnerHeight;

        if (this.selectpicker.current.data.length && this.selectpicker.current.data[this.selectpicker.current.data.length - 1].position > this.sizeInfo.menuInnerHeight) {
          this.sizeInfo.hasScrollBar = true;
          this.sizeInfo.totalMenuWidth = this.sizeInfo.menuWidth + this.sizeInfo.scrollBarWidth;

          this.$menu.css('min-width', this.sizeInfo.totalMenuWidth);
        }

        if (this.dropdown && this.dropdown._popper) this.dropdown._popper.update();
      },

      setSize: function(refresh) {
        this.liHeight(refresh);

        if (this.options.header) this.$menu.css('padding-top', 0);
        if (this.options.size === false) return;

        var that = this,
          $window = $(window),
          selectedIndex,
          offset = 0;

        this.setMenuSize();

        if (this.options.size === 'auto') {
          this.$searchbox.off('input.setMenuSize propertychange.setMenuSize').on('input.setMenuSize propertychange.setMenuSize', function() {
            return that.setMenuSize();
          });
          $window.off('resize.setMenuSize scroll.setMenuSize').on('resize.setMenuSize scroll.setMenuSize', function() {
            return that.setMenuSize();
          });
        } else if (this.options.size && this.options.size != 'auto' && this.selectpicker.current.elements.length > this.options.size) {
          this.$searchbox.off('input.setMenuSize propertychange.setMenuSize');
          $window.off('resize.setMenuSize scroll.setMenuSize');
        }

        if (refresh) {
          offset = this.$menuInner[0].scrollTop;
        } else if (!that.multiple) {
          selectedIndex = that.selectpicker.main.map.newIndex[that.$element[0].selectedIndex];

          if (typeof selectedIndex === 'number' && that.options.size !== false) {
            offset = that.sizeInfo.liHeight * selectedIndex;
            offset = offset - (that.sizeInfo.menuInnerHeight / 2) + (that.sizeInfo.liHeight / 2);
          }
        }

        that.createView(false, offset);
      },

      setWidth: function() {
        var that = this;

        if (this.options.width === 'auto') {
          requestAnimationFrame(function() {
            that.$menu.css('min-width', '0');
            that.liHeight();
            that.setMenuSize();

            // Get correct width if element is hidden
            var $selectClone = that.$newElement.clone().appendTo('body'),
              btnWidth = $selectClone.css('width', 'auto').children('button').outerWidth();

            $selectClone.remove();

            // Set width to whatever's larger, button title or longest option
            that.sizeInfo.selectWidth = Math.max(that.sizeInfo.totalMenuWidth, btnWidth);
            that.$newElement.css('width', that.sizeInfo.selectWidth + 'px');
          });
        } else if (this.options.width === 'fit') {
          // Remove inline min-width so width can be changed from 'auto'
          this.$menu.css('min-width', '');
          this.$newElement.css('width', '').addClass('fit-width');
        } else if (this.options.width) {
          // Remove inline min-width so width can be changed from 'auto'
          this.$menu.css('min-width', '');
          this.$newElement.css('width', this.options.width);
        } else {
          // Remove inline min-width/width so width can be changed
          this.$menu.css('min-width', '');
          this.$newElement.css('width', '');
        }
        // Remove fit-width class if width is changed programmatically
        if (this.$newElement.hasClass('fit-width') && this.options.width !== 'fit') {
          this.$newElement.removeClass('fit-width');
        }
      },

      selectPosition: function() {
        this.$bsContainer = $('<div class="bs-container" />');

        var that = this,
          $container = $(this.options.container),
          pos,
          containerPos,
          actualHeight,
          getPlacement = function($element) {
            var containerPosition = {};

            that.$bsContainer.addClass($element.attr('class').replace(/form-control|fit-width/gi, '')).toggleClass(classNames.DROPUP, $element.hasClass(classNames.DROPUP));
            pos = $element.offset();

            if (!$container.is('body')) {
              containerPos = $container.offset();
              containerPos.top += parseInt($container.css('borderTopWidth')) - $container.scrollTop();
              containerPos.left += parseInt($container.css('borderLeftWidth')) - $container.scrollLeft();
            } else {
              containerPos = {
                top: 0,
                left: 0
              };
            }

            actualHeight = $element.hasClass(classNames.DROPUP) ? 0 : $element[0].offsetHeight;

            // Bootstrap 4+ uses Popper for menu positioning
            if (version.major < 4) {
              containerPosition['top'] = pos.top - containerPos.top + actualHeight;
              containerPosition['left'] = pos.left - containerPos.left;
            }

            containerPosition['width'] = $element[0].offsetWidth;

            that.$bsContainer.css(containerPosition);
          };

        this.$button.on('click.bs.dropdown.data-api', function() {
          if (that.isDisabled()) {
            return;
          }

          getPlacement(that.$newElement);

          that.$bsContainer
            .appendTo(that.options.container)
            .toggleClass(classNames.SHOW, !that.$button.hasClass(classNames.SHOW))
            .append(that.$menu);
        });

        $(window).on('resize scroll', function() {
          getPlacement(that.$newElement);
        });

        this.$element.on('hide.bs.select', function() {
          that.$menu.data('height', that.$menu.height());
          that.$bsContainer.detach();
        });
      },

      setOptionStatus: function() {
        var that = this,
          $selectOptions = this.$element.find('option');

        that.noScroll = false;

        if (that.selectpicker.view.visibleElements && that.selectpicker.view.visibleElements.length) {
          for (var i = 0; i < that.selectpicker.view.visibleElements.length; i++) {
            var index = that.selectpicker.current.map.originalIndex[i + that.selectpicker.view.position0], // faster than $(li).data('originalIndex')
              option = $selectOptions[index];

            if (option) {
              var liIndex = this.selectpicker.main.map.newIndex[index],
                li = this.selectpicker.main.elements[liIndex];

              that.setDisabled(
                index,
                option.disabled || option.parentNode.tagName === 'OPTGROUP' && option.parentNode.disabled,
                liIndex,
                li
              );

              that.setSelected(
                index,
                option.selected,
                liIndex,
                li
              );
            }
          }
        }
      },

      /**
       * @param {number} index - the index of the option that is being changed
       * @param {boolean} selected - true if the option is being selected, false if being deselected
       */
      setSelected: function(index, selected, liIndex, li) {
        var activeIndexIsSet = this.activeIndex !== undefined,
          thisIsActive = this.activeIndex === index,
          prevActiveIndex,
          prevActive,
          a,
          // if current option is already active
          // OR
          // if the current option is being selected, it's NOT multiple, and
          // activeIndex is undefined:
          //  - when the menu is first being opened, OR
          //  - after a search has been performed, OR
          //  - when retainActive is false when selecting a new option (i.e. index of the newly selected option is not the same as the current activeIndex)
          keepActive = thisIsActive || selected && !this.multiple && !activeIndexIsSet;

        if (!liIndex) liIndex = this.selectpicker.main.map.newIndex[index];
        if (!li) li = this.selectpicker.main.elements[liIndex];

        a = li.firstChild;

        if (selected) {
          this.selectedIndex = index;
        }

        li.classList.toggle('selected', selected);
        li.classList.toggle('active', keepActive);

        if (keepActive) {
          this.selectpicker.view.currentActive = li;
          this.activeIndex = index;
        }

        if (a) {
          a.classList.toggle('selected', selected);
          a.classList.toggle('active', keepActive);
          a.setAttribute('aria-selected', selected);
        }

        if (!keepActive) {
          if (!activeIndexIsSet && selected && this.prevActiveIndex !== undefined) {
            prevActiveIndex = this.selectpicker.main.map.newIndex[this.prevActiveIndex];
            prevActive = this.selectpicker.main.elements[prevActiveIndex];

            prevActive.classList.remove('selected');
            prevActive.classList.remove('active');
            if (prevActive.firstChild) {
              prevActive.firstChild.classList.remove('selected');
              prevActive.firstChild.classList.remove('active');
            }
          }
        }
      },

      /**
       * @param {number} index - the index of the option that is being disabled
       * @param {boolean} disabled - true if the option is being disabled, false if being enabled
       */
      setDisabled: function(index, disabled, liIndex, li) {
        var a;

        if (!liIndex) liIndex = this.selectpicker.main.map.newIndex[index];
        if (!li) li = this.selectpicker.main.elements[liIndex];

        a = li.firstChild;

        li.classList.toggle(classNames.DISABLED, disabled);

        if (a) {
          if (version.major === '4') a.classList.toggle(classNames.DISABLED, disabled);

          a.setAttribute('aria-disabled', disabled);

          if (disabled) {
            a.setAttribute('tabindex', -1);
          } else {
            a.setAttribute('tabindex', 0);
          }
        }
      },

      isDisabled: function() {
        return this.$element[0].disabled;
      },

      checkDisabled: function() {
        var that = this;

        if (this.isDisabled()) {
          this.$newElement.addClass(classNames.DISABLED);
          this.$button.addClass(classNames.DISABLED).attr('tabindex', -1).attr('aria-disabled', true);
        } else {
          if (this.$button.hasClass(classNames.DISABLED)) {
            this.$newElement.removeClass(classNames.DISABLED);
            this.$button.removeClass(classNames.DISABLED).attr('aria-disabled', false);
          }

          if (this.$button.attr('tabindex') == -1 && !this.$element.data('tabindex')) {
            this.$button.removeAttr('tabindex');
          }
        }

        this.$button.click(function() {
          return !that.isDisabled();
        });
      },

      togglePlaceholder: function() {
        // much faster than calling $.val()
        var element = this.$element[0],
          selectedIndex = element.selectedIndex,
          nothingSelected = selectedIndex === -1;

        if (!nothingSelected && !element.options[selectedIndex].value) nothingSelected = true;

        this.$button.toggleClass('bs-placeholder', nothingSelected);
      },

      tabIndex: function() {
        if (this.$element.data('tabindex') !== this.$element.attr('tabindex') &&
          (this.$element.attr('tabindex') !== -98 && this.$element.attr('tabindex') !== '-98')) {
          this.$element.data('tabindex', this.$element.attr('tabindex'));
          this.$button.attr('tabindex', this.$element.data('tabindex'));
        }

        this.$element.attr('tabindex', -98);
      },

      clickListener: function() {
        var that = this,
          $document = $(document);

        $document.data('spaceSelect', false);

        this.$button.on('keyup', function(e) {
          if (/(32)/.test(e.keyCode.toString(10)) && $document.data('spaceSelect')) {
            e.preventDefault();
            $document.data('spaceSelect', false);
          }
        });

        this.$newElement.on('show.bs.dropdown', function() {
          if (version.major > 3 && !that.dropdown) {
            that.dropdown = that.$button.data('bs.dropdown');
            that.dropdown._menu = that.$menu[0];
          }
        });

        this.$button.on('click.bs.dropdown.data-api', function() {
          if (!that.$newElement.hasClass(classNames.SHOW)) {
            that.setSize();
          }
        });

        this.$element.on('shown.bs.select', function() {
          if (that.$menuInner[0].scrollTop !== that.selectpicker.view.scrollTop) {
            that.$menuInner[0].scrollTop = that.selectpicker.view.scrollTop;
          }

          if (that.options.liveSearch) {
            that.$searchbox.focus();
          } else {
            that.$menuInner.focus();
          }
        });

        this.$menuInner.on('click', 'li a', function(e, retainActive) {
          var $this = $(this),
            position0 = that.isVirtual() ? that.selectpicker.view.position0 : 0,
            clickedIndex = that.selectpicker.current.map.originalIndex[$this.parent().index() + position0],
            prevValue = getSelectValues(that.$element[0]),
            prevIndex = that.$element.prop('selectedIndex'),
            triggerChange = true;

          // Don't close on multi choice menu
          if (that.multiple && that.options.maxOptions !== 1) {
            e.stopPropagation();
          }

          e.preventDefault();

          //Don't run if we have been disabled
          if (!that.isDisabled() && !$this.parent().hasClass(classNames.DISABLED)) {
            var $options = that.$element.find('option'),
              $option = $options.eq(clickedIndex),
              state = $option.prop('selected'),
              $optgroup = $option.parent('optgroup'),
              maxOptions = that.options.maxOptions,
              maxOptionsGrp = $optgroup.data('maxOptions') || false;

            if (clickedIndex === that.activeIndex) retainActive = true;

            if (!retainActive) {
              that.prevActiveIndex = that.activeIndex;
              that.activeIndex = undefined;
            }

            if (!that.multiple) { // Deselect all others if not multi select box
              $options.prop('selected', false);
              $option.prop('selected', true);
              that.setSelected(clickedIndex, true);
            } else { // Toggle the one we have chosen if we are multi select.
              $option.prop('selected', !state);

              that.setSelected(clickedIndex, !state);
              $this.blur();

              if (maxOptions !== false || maxOptionsGrp !== false) {
                var maxReached = maxOptions < $options.filter(':selected').length,
                  maxReachedGrp = maxOptionsGrp < $optgroup.find('option:selected').length;

                if ((maxOptions && maxReached) || (maxOptionsGrp && maxReachedGrp)) {
                  if (maxOptions && maxOptions == 1) {
                    $options.prop('selected', false);
                    $option.prop('selected', true);
                    that.$menuInner.find('.selected').removeClass('selected');
                    that.setSelected(clickedIndex, true);
                  } else if (maxOptionsGrp && maxOptionsGrp == 1) {
                    $optgroup.find('option:selected').prop('selected', false);
                    $option.prop('selected', true);
                    var optgroupID = that.selectpicker.current.data[$this.parent().index() + that.selectpicker.view.position0].optID;
                    that.$menuInner.find('.optgroup-' + optgroupID).removeClass('selected');
                    that.setSelected(clickedIndex, true);
                  } else {
                    var maxOptionsText = typeof that.options.maxOptionsText === 'string' ? [that.options.maxOptionsText, that.options.maxOptionsText] : that.options.maxOptionsText,
                      maxOptionsArr = typeof maxOptionsText === 'function' ? maxOptionsText(maxOptions, maxOptionsGrp) : maxOptionsText,
                      maxTxt = maxOptionsArr[0].replace('{n}', maxOptions),
                      maxTxtGrp = maxOptionsArr[1].replace('{n}', maxOptionsGrp),
                      $notify = $('<div class="notify"></div>');
                    // If {var} is set in array, replace it
                    /** @deprecated */
                    if (maxOptionsArr[2]) {
                      maxTxt = maxTxt.replace('{var}', maxOptionsArr[2][maxOptions > 1 ? 0 : 1]);
                      maxTxtGrp = maxTxtGrp.replace('{var}', maxOptionsArr[2][maxOptionsGrp > 1 ? 0 : 1]);
                    }

                    $option.prop('selected', false);

                    that.$menu.append($notify);

                    if (maxOptions && maxReached) {
                      $notify.append($('<div>' + maxTxt + '</div>'));
                      triggerChange = false;
                      that.$element.trigger('maxReached.bs.select');
                    }

                    if (maxOptionsGrp && maxReachedGrp) {
                      $notify.append($('<div>' + maxTxtGrp + '</div>'));
                      triggerChange = false;
                      that.$element.trigger('maxReachedGrp.bs.select');
                    }

                    setTimeout(function() {
                      that.setSelected(clickedIndex, false);
                    }, 10);

                    $notify.delay(750).fadeOut(300, function() {
                      $(this).remove();
                    });
                  }
                }
              }
            }

            if (!that.multiple || (that.multiple && that.options.maxOptions === 1)) {
              that.$button.focus();
            } else if (that.options.liveSearch) {
              that.$searchbox.focus();
            }

            // Trigger select 'change'
            if (triggerChange) {
              if ((prevValue != getSelectValues(that.$element[0]) && that.multiple) || (prevIndex != that.$element.prop('selectedIndex') && !that.multiple)) {
                // $option.prop('selected') is current option state (selected/unselected). prevValue is the value of the select prior to being changed.
                changed_arguments = [clickedIndex, $option.prop('selected'), prevValue];
                that.$element
                  .triggerNative('change');
              }
            }
          }
        });

        this.$menu.on('click', 'li.' + classNames.DISABLED + ' a, .' + classNames.POPOVERHEADER + ', .' + classNames.POPOVERHEADER + ' :not(.close)', function(e) {
          if (e.currentTarget == this) {
            e.preventDefault();
            e.stopPropagation();
            if (that.options.liveSearch && !$(e.target).hasClass('close')) {
              that.$searchbox.focus();
            } else {
              that.$button.focus();
            }
          }
        });

        this.$menuInner.on('click', '.divider, .dropdown-header', function(e) {
          e.preventDefault();
          e.stopPropagation();
          if (that.options.liveSearch) {
            that.$searchbox.focus();
          } else {
            that.$button.focus();
          }
        });

        this.$menu.on('click', '.' + classNames.POPOVERHEADER + ' .close', function() {
          that.$button.click();
        });

        this.$searchbox.on('click', function(e) {
          e.stopPropagation();
        });

        this.$menu.on('click', '.actions-btn', function(e) {
          if (that.options.liveSearch) {
            that.$searchbox.focus();
          } else {
            that.$button.focus();
          }

          e.preventDefault();
          e.stopPropagation();

          if ($(this).hasClass('bs-select-all')) {
            that.selectAll();
          } else {
            that.deselectAll();
          }
        });

        this.$element.on({
          'change': function() {
            that.render();
            that.$element.trigger('changed.bs.select', changed_arguments);
            changed_arguments = null;
          },
          'focus': function() {
            that.$button.focus();
          }
        });
      },

      liveSearchListener: function() {
        var that = this,
          no_results = document.createElement('li');

        this.$button.on('click.bs.dropdown.data-api', function() {
          if (!!that.$searchbox.val()) {
            that.$searchbox.val('');
          }
        });

        this.$searchbox.on('click.bs.dropdown.data-api focus.bs.dropdown.data-api touchend.bs.dropdown.data-api', function(e) {
          e.stopPropagation();
        });

        this.$searchbox.on('input propertychange', function() {
          var searchValue = that.$searchbox.val();

          that.selectpicker.search.map.newIndex = {};
          that.selectpicker.search.map.originalIndex = {};
          that.selectpicker.search.elements = [];
          that.selectpicker.search.data = [];

          if (searchValue) {
            var i,
              searchMatch = [],
              q = searchValue.toUpperCase(),
              cache = {},
              cacheArr = [],
              searchStyle = that._searchStyle(),
              normalizeSearch = that.options.liveSearchNormalize;

            that._$lisSelected = that.$menuInner.find('.selected');

            for (var i = 0; i < that.selectpicker.main.data.length; i++) {
              var li = that.selectpicker.main.data[i];

              if (!cache[i]) {
                cache[i] = stringSearch(li, q, searchStyle, normalizeSearch);
              }

              if (cache[i] && li.headerIndex !== undefined && cacheArr.indexOf(li.headerIndex) === -1) {
                if (li.headerIndex > 0) {
                  cache[li.headerIndex - 1] = true;
                  cacheArr.push(li.headerIndex - 1);
                }

                cache[li.headerIndex] = true;
                cacheArr.push(li.headerIndex);

                cache[li.lastIndex + 1] = true;
              }

              if (cache[i] && li.type !== 'optgroup-label') cacheArr.push(i);
            }

            for (var i = 0, cacheLen = cacheArr.length; i < cacheLen; i++) {
              var index = cacheArr[i],
                prevIndex = cacheArr[i - 1],
                li = that.selectpicker.main.data[index],
                liPrev = that.selectpicker.main.data[prevIndex];

              if (li.type !== 'divider' || (li.type === 'divider' && liPrev && liPrev.type !== 'divider' && cacheLen - 1 !== i)) {
                that.selectpicker.search.data.push(li);
                searchMatch.push(that.selectpicker.main.elements[index]);
                that.selectpicker.search.map.newIndex[li.originalIndex] = searchMatch.length - 1;
                that.selectpicker.search.map.originalIndex[searchMatch.length - 1] = li.originalIndex;
              }
            }

            that.activeIndex = undefined;
            that.noScroll = true;
            that.$menuInner.scrollTop(0);
            that.selectpicker.search.elements = searchMatch;
            that.createView(true);

            if (!searchMatch.length) {
              no_results.className = 'no-results';
              no_results.innerHTML = that.options.noneResultsText.replace('{0}', '"' + htmlEscape(searchValue) + '"');
              that.$menuInner[0].firstChild.appendChild(no_results);
            }
          } else {
            that.$menuInner.scrollTop(0);
            that.createView(false);
          }
        });
      },

      _searchStyle: function() {
        return this.options.liveSearchStyle || 'contains';
      },

      val: function(value) {
        if (typeof value !== 'undefined') {
          this.$element
            .val(value)
            .triggerNative('change');

          return this.$element;
        } else {
          return this.$element.val();
        }
      },

      changeAll: function(status) {
        if (!this.multiple) return;
        if (typeof status === 'undefined') status = true;

        var $selectOptions = this.$element.find('option'),
          previousSelected = 0,
          currentSelected = 0,
          prevValue = getSelectValues(this.$element[0]);

        this.$element.addClass('bs-select-hidden');

        for (var i = 0; i < this.selectpicker.current.elements.length; i++) {
          var index = this.selectpicker.current.map.originalIndex[i], // faster than $(li).data('originalIndex')
            option = $selectOptions[index];

          if (option) {
            if (option.selected) previousSelected++;
            option.selected = status;
            if (option.selected) currentSelected++;
          }
        }

        this.$element.removeClass('bs-select-hidden');

        if (previousSelected === currentSelected) return;

        this.setOptionStatus();

        this.togglePlaceholder();

        changed_arguments = [null, null, prevValue];

        this.$element
          .triggerNative('change');
      },

      selectAll: function() {
        return this.changeAll(true);
      },

      deselectAll: function() {
        return this.changeAll(false);
      },

      toggle: function(e) {
        e = e || window.event;

        if (e) e.stopPropagation();

        this.$button.trigger('click.bs.dropdown.data-api');
      },

      keydown: function(e) {
        var $this = $(this),
          $parent = $this.is('input') ? $this.parent().parent().parent() : $this.parent(),
          that = $parent.data('this'),
          $items = that.findLis(),
          index,
          isActive,
          liActive,
          activeLi,
          offset,
          updateScroll = false,
          downOnTab = e.which === keyCodes.TAB && !$this.hasClass('dropdown-toggle') && !that.options.selectOnTab,
          isArrowKey = REGEXP_ARROW.test(e.which) || downOnTab,
          scrollTop = that.$menuInner[0].scrollTop,
          isVirtual = that.isVirtual(),
          position0 = isVirtual === true ? that.selectpicker.view.position0 : 0;

        isActive = that.$newElement.hasClass(classNames.SHOW);

        if (!isActive &&
          (
            isArrowKey ||
            e.which >= 48 && e.which <= 57 ||
            e.which >= 96 && e.which <= 105 ||
            e.which >= 65 && e.which <= 90
          )
        ) {
          that.$button.trigger('click.bs.dropdown.data-api');
        }

        if (e.which === keyCodes.ESCAPE && isActive) {
          e.preventDefault();
          that.$button.trigger('click.bs.dropdown.data-api').focus();
        }

        if (isArrowKey) { // if up or down
          if (!$items.length) return;

          // $items.index/.filter is too slow with a large list and no virtual scroll
          index = isVirtual === true ? $items.index($items.filter('.active')) : that.selectpicker.current.map.newIndex[that.activeIndex];

          if (index === undefined) index = -1;

          if (index !== -1) {
            liActive = that.selectpicker.current.elements[index + position0];
            liActive.classList.remove('active');
            if (liActive.firstChild) liActive.firstChild.classList.remove('active');
          }

          if (e.which === keyCodes.ARROW_UP) { // up
            if (index !== -1) index--;
            if (index + position0 < 0) index += $items.length;

            if (!that.selectpicker.view.canHighlight[index + position0]) {
              index = that.selectpicker.view.canHighlight.slice(0, index + position0).lastIndexOf(true) - position0;
              if (index === -1) index = $items.length - 1;
            }
          } else if (e.which === keyCodes.ARROW_DOWN || downOnTab) { // down
            index++;
            if (index + position0 >= that.selectpicker.view.canHighlight.length) index = 0;

            if (!that.selectpicker.view.canHighlight[index + position0]) {
              index = index + 1 + that.selectpicker.view.canHighlight.slice(index + position0 + 1).indexOf(true);
            }
          }

          e.preventDefault();

          var liActiveIndex = position0 + index;

          if (e.which === keyCodes.ARROW_UP) { // up
            // scroll to bottom and highlight last option
            if (position0 === 0 && index === $items.length - 1) {
              that.$menuInner[0].scrollTop = that.$menuInner[0].scrollHeight;

              liActiveIndex = that.selectpicker.current.elements.length - 1;
            } else {
              activeLi = that.selectpicker.current.data[liActiveIndex];
              offset = activeLi.position - activeLi.height;

              updateScroll = offset < scrollTop;
            }
          } else if (e.which === keyCodes.ARROW_DOWN || downOnTab) { // down
            // scroll to top and highlight first option
            if (position0 !== 0 && index === 0) {
              that.$menuInner[0].scrollTop = 0;

              liActiveIndex = 0;
            } else {
              activeLi = that.selectpicker.current.data[liActiveIndex];
              offset = activeLi.position - that.sizeInfo.menuInnerHeight;

              updateScroll = offset > scrollTop;
            }
          }

          liActive = that.selectpicker.current.elements[liActiveIndex];
          liActive.classList.add('active');
          if (liActive.firstChild) liActive.firstChild.classList.add('active');
          that.activeIndex = that.selectpicker.current.map.originalIndex[liActiveIndex];

          that.selectpicker.view.currentActive = liActive;

          if (updateScroll) that.$menuInner[0].scrollTop = offset;

          if (that.options.liveSearch) {
            that.$searchbox.focus();
          } else {
            $this.focus();
          }
        } else if (!$this.is('input') &&
          !REGEXP_TAB_OR_ESCAPE.test(e.which) ||
          (e.which === keyCodes.SPACE && that.selectpicker.keydown.keyHistory)
        ) {
          var searchMatch,
            matches = [],
            keyHistory;

          e.preventDefault();

          that.selectpicker.keydown.keyHistory += keyCodeMap[e.which];

          if (that.selectpicker.keydown.resetKeyHistory.cancel) clearTimeout(that.selectpicker.keydown.resetKeyHistory.cancel);
          that.selectpicker.keydown.resetKeyHistory.cancel = that.selectpicker.keydown.resetKeyHistory.start();

          keyHistory = that.selectpicker.keydown.keyHistory;

          // if all letters are the same, set keyHistory to just the first character when searching
          if (/^(.)\1+$/.test(keyHistory)) {
            keyHistory = keyHistory.charAt(0);
          }

          // find matches
          for (var i = 0; i < that.selectpicker.current.data.length; i++) {
            var li = that.selectpicker.current.data[i],
              hasMatch;

            hasMatch = stringSearch(li, keyHistory, 'startsWith', true);

            if (hasMatch && that.selectpicker.view.canHighlight[i]) {
              li.index = i;
              matches.push(li.originalIndex);
            }
          }

          if (matches.length) {
            var matchIndex = 0;

            $items.removeClass('active').find('a').removeClass('active');

            // either only one key has been pressed or they are all the same key
            if (keyHistory.length === 1) {
              matchIndex = matches.indexOf(that.activeIndex);

              if (matchIndex === -1 || matchIndex === matches.length - 1) {
                matchIndex = 0;
              } else {
                matchIndex++;
              }
            }

            searchMatch = that.selectpicker.current.map.newIndex[matches[matchIndex]];

            activeLi = that.selectpicker.current.data[searchMatch];

            if (scrollTop - activeLi.position > 0) {
              offset = activeLi.position - activeLi.height;
              updateScroll = true;
            } else {
              offset = activeLi.position - that.sizeInfo.menuInnerHeight;
              // if the option is already visible at the current scroll position, just keep it the same
              updateScroll = activeLi.position > scrollTop + that.sizeInfo.menuInnerHeight;
            }

            liActive = that.selectpicker.current.elements[searchMatch];
            liActive.classList.add('active');
            if (liActive.firstChild) liActive.firstChild.classList.add('active');
            that.activeIndex = matches[matchIndex];

            liActive.firstChild.focus();

            if (updateScroll) that.$menuInner[0].scrollTop = offset;

            $this.focus();
          }
        }

        // Select focused option if "Enter", "Spacebar" or "Tab" (when selectOnTab is true) are pressed inside the menu.
        if (
          isActive &&
          (
            (e.which === keyCodes.SPACE && !that.selectpicker.keydown.keyHistory) ||
            e.which === keyCodes.ENTER ||
            (e.which === keyCodes.TAB && that.options.selectOnTab)
          )
        ) {
          if (e.which !== keyCodes.SPACE) e.preventDefault();

          if (!that.options.liveSearch || e.which !== keyCodes.SPACE) {
            that.$menuInner.find('.active a').trigger('click', true); // retain active class
            $this.focus();

            if (!that.options.liveSearch) {
              // Prevent screen from scrolling if the user hits the spacebar
              e.preventDefault();
              // Fixes spacebar selection of dropdown items in FF & IE
              $(document).data('spaceSelect', true);
            }
          }
        }
      },

      mobile: function() {
        this.$element.addClass('mobile-device');
      },

      refresh: function() {
        // update options if data attributes have been changed
        var config = $.extend({}, this.options, this.$element.data());
        this.options = config;

        this.selectpicker.main.map.newIndex = {};
        this.selectpicker.main.map.originalIndex = {};
        this.createLi();
        this.checkDisabled();
        this.render();
        this.setStyle();
        this.setWidth();

        this.setSize(true);

        this.$element.trigger('refreshed.bs.select');
      },

      hide: function() {
        this.$newElement.hide();
      },

      show: function() {
        this.$newElement.show();
      },

      remove: function() {
        this.$newElement.remove();
        this.$element.remove();
      },

      destroy: function() {
        this.$newElement.before(this.$element).remove();

        if (this.$bsContainer) {
          this.$bsContainer.remove();
        } else {
          this.$menu.remove();
        }

        this.$element
          .off('.bs.select')
          .removeData('selectpicker')
          .removeClass('bs-select-hidden selectpicker');
      }
    };

    // SELECTPICKER PLUGIN DEFINITION
    // ==============================
    function Plugin(option) {
      // get the args of the outer function..
      var args = arguments;
      // The arguments of the function are explicitly re-defined from the argument list, because the shift causes them
      // to get lost/corrupted in android 2.3 and IE9 #715 #775
      var _option = option;

      [].shift.apply(args);

      var value;
      var chain = this.each(function() {
        var $this = $(this);
        if ($this.is('select')) {
          var data = $this.data('selectpicker'),
            options = typeof _option == 'object' && _option;

          if (!data) {
            var config = $.extend({}, Selectpicker.DEFAULTS, $.fn.selectpicker.defaults || {}, $this.data(), options);
            config.template = $.extend({}, Selectpicker.DEFAULTS.template, ($.fn.selectpicker.defaults ? $.fn.selectpicker.defaults.template : {}), $this.data().template, options.template);
            $this.data('selectpicker', (data = new Selectpicker(this, config)));
          } else if (options) {
            for (var i in options) {
              if (options.hasOwnProperty(i)) {
                data.options[i] = options[i];
              }
            }
          }

          if (typeof _option == 'string') {
            if (data[_option] instanceof Function) {
              value = data[_option].apply(data, args);
            } else {
              value = data.options[_option];
            }
          }
        }
      });

      if (typeof value !== 'undefined') {
        //noinspection JSUnusedAssignment
        return value;
      } else {
        return chain;
      }
    }

    var old = $.fn.selectpicker;
    $.fn.selectpicker = Plugin;
    $.fn.selectpicker.Constructor = Selectpicker;

    // SELECTPICKER NO CONFLICT
    // ========================
    $.fn.selectpicker.noConflict = function() {
      $.fn.selectpicker = old;
      return this;
    };

    $(document)
      .off('keydown.bs.dropdown.data-api')
      .on('keydown.bs.select', '.bootstrap-select [data-toggle="dropdown"], .bootstrap-select [role="listbox"], .bs-searchbox input', Selectpicker.prototype.keydown)
      .on('focusin.modal', '.bootstrap-select [data-toggle="dropdown"], .bootstrap-select [role="listbox"], .bs-searchbox input', function(e) {
        e.stopPropagation();
      });

    // SELECTPICKER DATA-API
    // =====================
    $(window).on('load.bs.select.data-api', function() {
      $('.selectpicker').each(function() {
        var $selectpicker = $(this);
        Plugin.call($selectpicker, $selectpicker.data());
      })
    });
  })(jQuery);


}));