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/*!
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 * Bootstrap-select v1.13.9 (https://developer.snapappointments.com/bootstrap-select)
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 *
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 * Copyright 2012-2019 SnapAppointments, LLC
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 * Licensed under MIT (https://github.com/snapappointments/bootstrap-select/blob/master/LICENSE)
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 */
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(function (root, factory) {
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  if (root === undefined && window !== undefined) root = window;
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  if (typeof define === 'function' && define.amd) {
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    // AMD. Register as an anonymous module unless amdModuleId is set
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    define(["jquery"], function (a0) {
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      return (factory(a0));
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    });
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  } else if (typeof module === 'object' && module.exports) {
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    // Node. Does not work with strict CommonJS, but
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    // only CommonJS-like environments that support module.exports,
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    // like Node.
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    module.exports = factory(require("jquery"));
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  } else {
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    factory(root["jQuery"]);
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  }
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}(this, function (jQuery) {
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(function ($) {
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  'use strict';
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  var DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn'];
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  var uriAttrs = [
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    'background',
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    'cite',
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    'href',
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    'itemtype',
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    'longdesc',
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    'poster',
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    'src',
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    'xlink:href'
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  ];
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  var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
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  var DefaultWhitelist = {
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    // Global attributes allowed on any supplied element below.
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    '*': ['class', 'dir', 'id', 'lang', 'role', 'tabindex', 'style', ARIA_ATTRIBUTE_PATTERN],
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    a: ['target', 'href', 'title', 'rel'],
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    area: [],
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    b: [],
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    br: [],
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    col: [],
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    code: [],
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    div: [],
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    em: [],
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    hr: [],
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    h1: [],
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    h2: [],
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    h3: [],
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    h4: [],
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    h5: [],
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    h6: [],
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    i: [],
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    img: ['src', 'alt', 'title', 'width', 'height'],
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    li: [],
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    ol: [],
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    p: [],
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    pre: [],
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    s: [],
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    small: [],
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    span: [],
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    sub: [],
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    sup: [],
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    strong: [],
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    u: [],
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    ul: []
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  }
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  /**
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   * A pattern that recognizes a commonly useful subset of URLs that are safe.
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   *
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   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
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   */
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  var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;
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  /**
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   * A pattern that matches safe data URLs. Only matches image, video and audio types.
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   *
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   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
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   */
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  var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;
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  function allowedAttribute (attr, allowedAttributeList) {
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    var attrName = attr.nodeName.toLowerCase()
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    if ($.inArray(attrName, allowedAttributeList) !== -1) {
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      if ($.inArray(attrName, uriAttrs) !== -1) {
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        return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN))
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      }
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      return true
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    }
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    var regExp = $(allowedAttributeList).filter(function (index, value) {
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      return value instanceof RegExp
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    })
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    // Check if a regular expression validates the attribute.
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    for (var i = 0, l = regExp.length; i < l; i++) {
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      if (attrName.match(regExp[i])) {
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        return true
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      }
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    }
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    return false
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  }
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  function sanitizeHtml (unsafeElements, whiteList, sanitizeFn) {
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    if (sanitizeFn && typeof sanitizeFn === 'function') {
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      return sanitizeFn(unsafeElements);
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    }
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    var whitelistKeys = Object.keys(whiteList);
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    for (var i = 0, len = unsafeElements.length; i < len; i++) {
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      var elements = unsafeElements[i].querySelectorAll('*');
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      for (var j = 0, len2 = elements.length; j < len2; j++) {
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        var el = elements[j];
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        var elName = el.nodeName.toLowerCase();
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        if (whitelistKeys.indexOf(elName) === -1) {
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          el.parentNode.removeChild(el);
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          continue;
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        }
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        var attributeList = [].slice.call(el.attributes);
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        var whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || []);
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        for (var k = 0, len3 = attributeList.length; k < len3; k++) {
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          var attr = attributeList[k];
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          if (!allowedAttribute(attr, whitelistedAttributes)) {
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            el.removeAttribute(attr.nodeName);
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          }
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        }
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      }
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    }
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  }
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  // Polyfill for browsers with no classList support
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  // Remove in v2
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  if (!('classList' in document.createElement('_'))) {
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    (function (view) {
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      if (!('Element' in view)) return;
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      var classListProp = 'classList',
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          protoProp = 'prototype',
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          elemCtrProto = view.Element[protoProp],
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          objCtr = Object,
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          classListGetter = function () {
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            var $elem = $(this);
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            return {
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              add: function (classes) {
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                classes = Array.prototype.slice.call(arguments).join(' ');
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                return $elem.addClass(classes);
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              },
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              remove: function (classes) {
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                classes = Array.prototype.slice.call(arguments).join(' ');
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                return $elem.removeClass(classes);
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              },
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              toggle: function (classes, force) {
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                return $elem.toggleClass(classes, force);
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              },
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              contains: function (classes) {
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                return $elem.hasClass(classes);
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              }
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            }
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          };
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      if (objCtr.defineProperty) {
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        var classListPropDesc = {
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          get: classListGetter,
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          enumerable: true,
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          configurable: true
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        };
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        try {
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          objCtr.defineProperty(elemCtrProto, classListProp, classListPropDesc);
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        } catch (ex) { // IE 8 doesn't support enumerable:true
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          // adding undefined to fight this issue https://github.com/eligrey/classList.js/issues/36
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          // modernie IE8-MSW7 machine has IE8 8.0.6001.18702 and is affected
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          if (ex.number === undefined || ex.number === -0x7FF5EC54) {
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            classListPropDesc.enumerable = false;
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            objCtr.defineProperty(elemCtrProto, classListProp, classListPropDesc);
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          }
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        }
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      } else if (objCtr[protoProp].__defineGetter__) {
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        elemCtrProto.__defineGetter__(classListProp, classListGetter);
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      }
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    }(window));
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  }
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  var testElement = document.createElement('_');
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  testElement.classList.add('c1', 'c2');
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  if (!testElement.classList.contains('c2')) {
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    var _add = DOMTokenList.prototype.add,
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        _remove = DOMTokenList.prototype.remove;
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    DOMTokenList.prototype.add = function () {
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      Array.prototype.forEach.call(arguments, _add.bind(this));
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    }
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    DOMTokenList.prototype.remove = function () {
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      Array.prototype.forEach.call(arguments, _remove.bind(this));
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    }
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  }
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  testElement.classList.toggle('c3', false);
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  // Polyfill for IE 10 and Firefox <24, where classList.toggle does not
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  // support the second argument.
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  if (testElement.classList.contains('c3')) {
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    var _toggle = DOMTokenList.prototype.toggle;
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    DOMTokenList.prototype.toggle = function (token, force) {
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      if (1 in arguments && !this.contains(token) === !force) {
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        return force;
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      } else {
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        return _toggle.call(this, token);
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      }
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    };
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  }
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  testElement = null;
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  // shallow array comparison
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  function isEqual (array1, array2) {
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    return array1.length === array2.length && array1.every(function (element, index) {
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      return element === array2[index];
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    });
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  };
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  // <editor-fold desc="Shims">
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  if (!String.prototype.startsWith) {
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    (function () {
248
      'use strict'; // needed to support `apply`/`call` with `undefined`/`null`
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      var defineProperty = (function () {
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        // IE 8 only supports `Object.defineProperty` on DOM elements
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        try {
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          var object = {};
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          var $defineProperty = Object.defineProperty;
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          var result = $defineProperty(object, object, object) && $defineProperty;
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        } catch (error) {
256
        }
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        return result;
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      }());
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      var toString = {}.toString;
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      var startsWith = function (search) {
261
        if (this == null) {
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          throw new TypeError();
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        }
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        var string = String(this);
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        if (search && toString.call(search) == '[object RegExp]') {
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          throw new TypeError();
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        }
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        var stringLength = string.length;
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        var searchString = String(search);
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        var searchLength = searchString.length;
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        var position = arguments.length > 1 ? arguments[1] : undefined;
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        // `ToInteger`
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        var pos = position ? Number(position) : 0;
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        if (pos != pos) { // better `isNaN`
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          pos = 0;
276
        }
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        var start = Math.min(Math.max(pos, 0), stringLength);
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        // Avoid the `indexOf` call if no match is possible
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        if (searchLength + start > stringLength) {
280
          return false;
281
        }
282
        var index = -1;
283
        while (++index < searchLength) {
284
          if (string.charCodeAt(start + index) != searchString.charCodeAt(index)) {
285
            return false;
286
          }
287
        }
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        return true;
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      };
290
      if (defineProperty) {
291
        defineProperty(String.prototype, 'startsWith', {
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          'value': startsWith,
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          'configurable': true,
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          'writable': true
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        });
296
      } else {
297
        String.prototype.startsWith = startsWith;
298
      }
299
    }());
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  }
301

    
302
  if (!Object.keys) {
303
    Object.keys = function (
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      o, // object
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      k, // key
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      r  // result array
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    ) {
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      // initialize object and result
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      r = [];
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      // iterate over object keys
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      for (k in o) {
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        // fill result array with non-prototypical keys
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        r.hasOwnProperty.call(o, k) && r.push(k);
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      }
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      // return result
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      return r;
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    };
318
  }
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320
  if (HTMLSelectElement && !HTMLSelectElement.prototype.hasOwnProperty('selectedOptions')) {
321
    Object.defineProperty(HTMLSelectElement.prototype, 'selectedOptions', {
322
      get: function () {
323
        return this.querySelectorAll(':checked');
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      }
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    });
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  }
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  // much faster than $.val()
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  function getSelectValues (select) {
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    var result = [];
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    var options = select.selectedOptions;
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    var opt;
333

    
334
    if (select.multiple) {
335
      for (var i = 0, len = options.length; i < len; i++) {
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        opt = options[i];
337

    
338
        result.push(opt.value || opt.text);
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      }
340
    } else {
341
      result = select.value;
342
    }
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    return result;
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  }
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  // set data-selected on select element if the value has been programmatically selected
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  // prior to initialization of bootstrap-select
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  // * consider removing or replacing an alternative method *
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  var valHooks = {
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    useDefault: false,
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    _set: $.valHooks.select.set
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  };
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355
  $.valHooks.select.set = function (elem, value) {
356
    if (value && !valHooks.useDefault) $(elem).data('selected', true);
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    return valHooks._set.apply(this, arguments);
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  };
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361
  var changedArguments = null;
362

    
363
  var EventIsSupported = (function () {
364
    try {
365
      new Event('change');
366
      return true;
367
    } catch (e) {
368
      return false;
369
    }
370
  })();
371

    
372
  $.fn.triggerNative = function (eventName) {
373
    var el = this[0],
374
        event;
375

    
376
    if (el.dispatchEvent) { // for modern browsers & IE9+
377
      if (EventIsSupported) {
378
        // For modern browsers
379
        event = new Event(eventName, {
380
          bubbles: true
381
        });
382
      } else {
383
        // For IE since it doesn't support Event constructor
384
        event = document.createEvent('Event');
385
        event.initEvent(eventName, true, false);
386
      }
387

    
388
      el.dispatchEvent(event);
389
    } else if (el.fireEvent) { // for IE8
390
      event = document.createEventObject();
391
      event.eventType = eventName;
392
      el.fireEvent('on' + eventName, event);
393
    } else {
394
      // fall back to jQuery.trigger
395
      this.trigger(eventName);
396
    }
397
  };
398
  // </editor-fold>
399

    
400
  function stringSearch (li, searchString, method, normalize) {
401
    var stringTypes = [
402
          'display',
403
          'subtext',
404
          'tokens'
405
        ],
406
        searchSuccess = false;
407

    
408
    for (var i = 0; i < stringTypes.length; i++) {
409
      var stringType = stringTypes[i],
410
          string = li[stringType];
411

    
412
      if (string) {
413
        string = string.toString();
414

    
415
        // Strip HTML tags. This isn't perfect, but it's much faster than any other method
416
        if (stringType === 'display') {
417
          string = string.replace(/<[^>]+>/g, '');
418
        }
419

    
420
        if (normalize) string = normalizeToBase(string);
421
        string = string.toUpperCase();
422

    
423
        if (method === 'contains') {
424
          searchSuccess = string.indexOf(searchString) >= 0;
425
        } else {
426
          searchSuccess = string.startsWith(searchString);
427
        }
428

    
429
        if (searchSuccess) break;
430
      }
431
    }
432

    
433
    return searchSuccess;
434
  }
435

    
436
  function toInteger (value) {
437
    return parseInt(value, 10) || 0;
438
  }
439

    
440
  // Borrowed from Lodash (_.deburr)
441
  /** Used to map Latin Unicode letters to basic Latin letters. */
442
  var deburredLetters = {
443
    // Latin-1 Supplement block.
444
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
445
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
446
    '\xc7': 'C',  '\xe7': 'c',
447
    '\xd0': 'D',  '\xf0': 'd',
448
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
449
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
450
    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
451
    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
452
    '\xd1': 'N',  '\xf1': 'n',
453
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
454
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
455
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
456
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
457
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
458
    '\xc6': 'Ae', '\xe6': 'ae',
459
    '\xde': 'Th', '\xfe': 'th',
460
    '\xdf': 'ss',
461
    // Latin Extended-A block.
462
    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
463
    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
464
    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
465
    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
466
    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
467
    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
468
    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
469
    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
470
    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
471
    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
472
    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
473
    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
474
    '\u0134': 'J',  '\u0135': 'j',
475
    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
476
    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
477
    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
478
    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
479
    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
480
    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
481
    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
482
    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
483
    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
484
    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
485
    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
486
    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
487
    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
488
    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
489
    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
490
    '\u0174': 'W',  '\u0175': 'w',
491
    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
492
    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
493
    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
494
    '\u0132': 'IJ', '\u0133': 'ij',
495
    '\u0152': 'Oe', '\u0153': 'oe',
496
    '\u0149': "'n", '\u017f': 's'
497
  };
498

    
499
  /** Used to match Latin Unicode letters (excluding mathematical operators). */
500
  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
501

    
502
  /** Used to compose unicode character classes. */
503
  var rsComboMarksRange = '\\u0300-\\u036f',
504
      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
505
      rsComboSymbolsRange = '\\u20d0-\\u20ff',
506
      rsComboMarksExtendedRange = '\\u1ab0-\\u1aff',
507
      rsComboMarksSupplementRange = '\\u1dc0-\\u1dff',
508
      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange + rsComboMarksExtendedRange + rsComboMarksSupplementRange;
509

    
510
  /** Used to compose unicode capture groups. */
511
  var rsCombo = '[' + rsComboRange + ']';
512

    
513
  /**
514
   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
515
   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
516
   */
517
  var reComboMark = RegExp(rsCombo, 'g');
518

    
519
  function deburrLetter (key) {
520
    return deburredLetters[key];
521
  };
522

    
523
  function normalizeToBase (string) {
524
    string = string.toString();
525
    return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
526
  }
527

    
528
  // List of HTML entities for escaping.
529
  var escapeMap = {
530
    '&': '&amp;',
531
    '<': '&lt;',
532
    '>': '&gt;',
533
    '"': '&quot;',
534
    "'": '&#x27;',
535
    '`': '&#x60;'
536
  };
537

    
538
  // Functions for escaping and unescaping strings to/from HTML interpolation.
539
  var createEscaper = function (map) {
540
    var escaper = function (match) {
541
      return map[match];
542
    };
543
    // Regexes for identifying a key that needs to be escaped.
544
    var source = '(?:' + Object.keys(map).join('|') + ')';
545
    var testRegexp = RegExp(source);
546
    var replaceRegexp = RegExp(source, 'g');
547
    return function (string) {
548
      string = string == null ? '' : '' + string;
549
      return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
550
    };
551
  };
552

    
553
  var htmlEscape = createEscaper(escapeMap);
554

    
555
  /**
556
   * ------------------------------------------------------------------------
557
   * Constants
558
   * ------------------------------------------------------------------------
559
   */
560

    
561
  var keyCodeMap = {
562
    32: ' ',
563
    48: '0',
564
    49: '1',
565
    50: '2',
566
    51: '3',
567
    52: '4',
568
    53: '5',
569
    54: '6',
570
    55: '7',
571
    56: '8',
572
    57: '9',
573
    59: ';',
574
    65: 'A',
575
    66: 'B',
576
    67: 'C',
577
    68: 'D',
578
    69: 'E',
579
    70: 'F',
580
    71: 'G',
581
    72: 'H',
582
    73: 'I',
583
    74: 'J',
584
    75: 'K',
585
    76: 'L',
586
    77: 'M',
587
    78: 'N',
588
    79: 'O',
589
    80: 'P',
590
    81: 'Q',
591
    82: 'R',
592
    83: 'S',
593
    84: 'T',
594
    85: 'U',
595
    86: 'V',
596
    87: 'W',
597
    88: 'X',
598
    89: 'Y',
599
    90: 'Z',
600
    96: '0',
601
    97: '1',
602
    98: '2',
603
    99: '3',
604
    100: '4',
605
    101: '5',
606
    102: '6',
607
    103: '7',
608
    104: '8',
609
    105: '9'
610
  };
611

    
612
  var keyCodes = {
613
    ESCAPE: 27, // KeyboardEvent.which value for Escape (Esc) key
614
    ENTER: 13, // KeyboardEvent.which value for Enter key
615
    SPACE: 32, // KeyboardEvent.which value for space key
616
    TAB: 9, // KeyboardEvent.which value for tab key
617
    ARROW_UP: 38, // KeyboardEvent.which value for up arrow key
618
    ARROW_DOWN: 40 // KeyboardEvent.which value for down arrow key
619
  }
620

    
621
  var version = {
622
    success: false,
623
    major: '3'
624
  };
625

    
626
  try {
627
    version.full = ($.fn.dropdown.Constructor.VERSION || '').split(' ')[0].split('.');
628
    version.major = version.full[0];
629
    version.success = true;
630
  } catch (err) {
631
    // do nothing
632
  }
633

    
634
  var selectId = 0;
635

    
636
  var EVENT_KEY = '.bs.select';
637

    
638
  var classNames = {
639
    DISABLED: 'disabled',
640
    DIVIDER: 'divider',
641
    SHOW: 'open',
642
    DROPUP: 'dropup',
643
    MENU: 'dropdown-menu',
644
    MENURIGHT: 'dropdown-menu-right',
645
    MENULEFT: 'dropdown-menu-left',
646
    // to-do: replace with more advanced template/customization options
647
    BUTTONCLASS: 'btn-default',
648
    POPOVERHEADER: 'popover-title',
649
    ICONBASE: 'glyphicon',
650
    TICKICON: 'glyphicon-ok'
651
  }
652

    
653
  var Selector = {
654
    MENU: '.' + classNames.MENU
655
  }
656

    
657
  var elementTemplates = {
658
    span: document.createElement('span'),
659
    i: document.createElement('i'),
660
    subtext: document.createElement('small'),
661
    a: document.createElement('a'),
662
    li: document.createElement('li'),
663
    whitespace: document.createTextNode('\u00A0'),
664
    fragment: document.createDocumentFragment()
665
  }
666

    
667
  elementTemplates.a.setAttribute('role', 'option');
668
  elementTemplates.subtext.className = 'text-muted';
669

    
670
  elementTemplates.text = elementTemplates.span.cloneNode(false);
671
  elementTemplates.text.className = 'text';
672

    
673
  elementTemplates.checkMark = elementTemplates.span.cloneNode(false);
674

    
675
  var REGEXP_ARROW = new RegExp(keyCodes.ARROW_UP + '|' + keyCodes.ARROW_DOWN);
676
  var REGEXP_TAB_OR_ESCAPE = new RegExp('^' + keyCodes.TAB + '$|' + keyCodes.ESCAPE);
677

    
678
  var generateOption = {
679
    li: function (content, classes, optgroup) {
680
      var li = elementTemplates.li.cloneNode(false);
681

    
682
      if (content) {
683
        if (content.nodeType === 1 || content.nodeType === 11) {
684
          li.appendChild(content);
685
        } else {
686
          li.innerHTML = content;
687
        }
688
      }
689

    
690
      if (typeof classes !== 'undefined' && classes !== '') li.className = classes;
691
      if (typeof optgroup !== 'undefined' && optgroup !== null) li.classList.add('optgroup-' + optgroup);
692

    
693
      return li;
694
    },
695

    
696
    a: function (text, classes, inline) {
697
      var a = elementTemplates.a.cloneNode(true);
698

    
699
      if (text) {
700
        if (text.nodeType === 11) {
701
          a.appendChild(text);
702
        } else {
703
          a.insertAdjacentHTML('beforeend', text);
704
        }
705
      }
706

    
707
      if (typeof classes !== 'undefined' && classes !== '') a.className = classes;
708
      if (version.major === '4') a.classList.add('dropdown-item');
709
      if (inline) a.setAttribute('style', inline);
710

    
711
      return a;
712
    },
713

    
714
    text: function (options, useFragment) {
715
      var textElement = elementTemplates.text.cloneNode(false),
716
          subtextElement,
717
          iconElement;
718

    
719
      if (options.content) {
720
        textElement.innerHTML = options.content;
721
      } else {
722
        textElement.textContent = options.text;
723

    
724
        if (options.icon) {
725
          var whitespace = elementTemplates.whitespace.cloneNode(false);
726

    
727
          // need to use <i> for icons in the button to prevent a breaking change
728
          // note: switch to span in next major release
729
          iconElement = (useFragment === true ? elementTemplates.i : elementTemplates.span).cloneNode(false);
730
          iconElement.className = options.iconBase + ' ' + options.icon;
731

    
732
          elementTemplates.fragment.appendChild(iconElement);
733
          elementTemplates.fragment.appendChild(whitespace);
734
        }
735

    
736
        if (options.subtext) {
737
          subtextElement = elementTemplates.subtext.cloneNode(false);
738
          subtextElement.textContent = options.subtext;
739
          textElement.appendChild(subtextElement);
740
        }
741
      }
742

    
743
      if (useFragment === true) {
744
        while (textElement.childNodes.length > 0) {
745
          elementTemplates.fragment.appendChild(textElement.childNodes[0]);
746
        }
747
      } else {
748
        elementTemplates.fragment.appendChild(textElement);
749
      }
750

    
751
      return elementTemplates.fragment;
752
    },
753

    
754
    label: function (options) {
755
      var textElement = elementTemplates.text.cloneNode(false),
756
          subtextElement,
757
          iconElement;
758

    
759
      textElement.innerHTML = options.label;
760

    
761
      if (options.icon) {
762
        var whitespace = elementTemplates.whitespace.cloneNode(false);
763

    
764
        iconElement = elementTemplates.span.cloneNode(false);
765
        iconElement.className = options.iconBase + ' ' + options.icon;
766

    
767
        elementTemplates.fragment.appendChild(iconElement);
768
        elementTemplates.fragment.appendChild(whitespace);
769
      }
770

    
771
      if (options.subtext) {
772
        subtextElement = elementTemplates.subtext.cloneNode(false);
773
        subtextElement.textContent = options.subtext;
774
        textElement.appendChild(subtextElement);
775
      }
776

    
777
      elementTemplates.fragment.appendChild(textElement);
778

    
779
      return elementTemplates.fragment;
780
    }
781
  }
782

    
783
  var Selectpicker = function (element, options) {
784
    var that = this;
785

    
786
    // bootstrap-select has been initialized - revert valHooks.select.set back to its original function
787
    if (!valHooks.useDefault) {
788
      $.valHooks.select.set = valHooks._set;
789
      valHooks.useDefault = true;
790
    }
791

    
792
    this.$element = $(element);
793
    this.$newElement = null;
794
    this.$button = null;
795
    this.$menu = null;
796
    this.options = options;
797
    this.selectpicker = {
798
      main: {},
799
      current: {}, // current changes if a search is in progress
800
      search: {},
801
      view: {},
802
      keydown: {
803
        keyHistory: '',
804
        resetKeyHistory: {
805
          start: function () {
806
            return setTimeout(function () {
807
              that.selectpicker.keydown.keyHistory = '';
808
            }, 800);
809
          }
810
        }
811
      }
812
    };
813
    // 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
814
    // data-attribute)
815
    if (this.options.title === null) {
816
      this.options.title = this.$element.attr('title');
817
    }
818

    
819
    // Format window padding
820
    var winPad = this.options.windowPadding;
821
    if (typeof winPad === 'number') {
822
      this.options.windowPadding = [winPad, winPad, winPad, winPad];
823
    }
824

    
825
    // Expose public methods
826
    this.val = Selectpicker.prototype.val;
827
    this.render = Selectpicker.prototype.render;
828
    this.refresh = Selectpicker.prototype.refresh;
829
    this.setStyle = Selectpicker.prototype.setStyle;
830
    this.selectAll = Selectpicker.prototype.selectAll;
831
    this.deselectAll = Selectpicker.prototype.deselectAll;
832
    this.destroy = Selectpicker.prototype.destroy;
833
    this.remove = Selectpicker.prototype.remove;
834
    this.show = Selectpicker.prototype.show;
835
    this.hide = Selectpicker.prototype.hide;
836

    
837
    this.init();
838
  };
839

    
840
  Selectpicker.VERSION = '1.13.9';
841

    
842
  // part of this is duplicated in i18n/defaults-en_US.js. Make sure to update both.
843
  Selectpicker.DEFAULTS = {
844
    noneSelectedText: 'Nothing selected',
845
    noneResultsText: 'No results matched {0}',
846
    countSelectedText: function (numSelected, numTotal) {
847
      return (numSelected == 1) ? '{0} item selected' : '{0} items selected';
848
    },
849
    maxOptionsText: function (numAll, numGroup) {
850
      return [
851
        (numAll == 1) ? 'Limit reached ({n} item max)' : 'Limit reached ({n} items max)',
852
        (numGroup == 1) ? 'Group limit reached ({n} item max)' : 'Group limit reached ({n} items max)'
853
      ];
854
    },
855
    selectAllText: 'Select All',
856
    deselectAllText: 'Deselect All',
857
    doneButton: false,
858
    doneButtonText: 'Close',
859
    multipleSeparator: ', ',
860
    styleBase: 'btn',
861
    style: classNames.BUTTONCLASS,
862
    size: 'auto',
863
    title: null,
864
    selectedTextFormat: 'values',
865
    width: false,
866
    container: false,
867
    hideDisabled: false,
868
    showSubtext: false,
869
    showIcon: true,
870
    showContent: true,
871
    dropupAuto: true,
872
    header: false,
873
    liveSearch: false,
874
    liveSearchPlaceholder: null,
875
    liveSearchNormalize: false,
876
    liveSearchStyle: 'contains',
877
    actionsBox: false,
878
    iconBase: classNames.ICONBASE,
879
    tickIcon: classNames.TICKICON,
880
    showTick: false,
881
    template: {
882
      caret: '<span class="caret"></span>'
883
    },
884
    maxOptions: false,
885
    mobile: false,
886
    selectOnTab: false,
887
    dropdownAlignRight: false,
888
    windowPadding: 0,
889
    virtualScroll: 600,
890
    display: false,
891
    sanitize: true,
892
    sanitizeFn: null,
893
    whiteList: DefaultWhitelist
894
  };
895

    
896
  Selectpicker.prototype = {
897

    
898
    constructor: Selectpicker,
899

    
900
    init: function () {
901
      var that = this,
902
          id = this.$element.attr('id');
903

    
904
      this.selectId = selectId++;
905

    
906
      this.$element[0].classList.add('bs-select-hidden');
907

    
908
      this.multiple = this.$element.prop('multiple');
909
      this.autofocus = this.$element.prop('autofocus');
910
      this.options.showTick = this.$element[0].classList.contains('show-tick');
911

    
912
      this.$newElement = this.createDropdown();
913
      this.$element
914
        .after(this.$newElement)
915
        .prependTo(this.$newElement);
916

    
917
      this.$button = this.$newElement.children('button');
918
      this.$menu = this.$newElement.children(Selector.MENU);
919
      this.$menuInner = this.$menu.children('.inner');
920
      this.$searchbox = this.$menu.find('input');
921

    
922
      this.$element[0].classList.remove('bs-select-hidden');
923

    
924
      if (this.options.dropdownAlignRight === true) this.$menu[0].classList.add(classNames.MENURIGHT);
925

    
926
      if (typeof id !== 'undefined') {
927
        this.$button.attr('data-id', id);
928
      }
929

    
930
      this.checkDisabled();
931
      this.clickListener();
932
      if (this.options.liveSearch) this.liveSearchListener();
933
      this.setStyle();
934
      this.render();
935
      this.setWidth();
936
      if (this.options.container) {
937
        this.selectPosition();
938
      } else {
939
        this.$element.on('hide' + EVENT_KEY, function () {
940
          if (that.isVirtual()) {
941
            // empty menu on close
942
            var menuInner = that.$menuInner[0],
943
                emptyMenu = menuInner.firstChild.cloneNode(false);
944

    
945
            // replace the existing UL with an empty one - this is faster than $.empty() or innerHTML = ''
946
            menuInner.replaceChild(emptyMenu, menuInner.firstChild);
947
            menuInner.scrollTop = 0;
948
          }
949
        });
950
      }
951
      this.$menu.data('this', this);
952
      this.$newElement.data('this', this);
953
      if (this.options.mobile) this.mobile();
954

    
955
      this.$newElement.on({
956
        'hide.bs.dropdown': function (e) {
957
          that.$menuInner.attr('aria-expanded', false);
958
          that.$element.trigger('hide' + EVENT_KEY, e);
959
        },
960
        'hidden.bs.dropdown': function (e) {
961
          that.$element.trigger('hidden' + EVENT_KEY, e);
962
        },
963
        'show.bs.dropdown': function (e) {
964
          that.$menuInner.attr('aria-expanded', true);
965
          that.$element.trigger('show' + EVENT_KEY, e);
966
        },
967
        'shown.bs.dropdown': function (e) {
968
          that.$element.trigger('shown' + EVENT_KEY, e);
969
        }
970
      });
971

    
972
      if (that.$element[0].hasAttribute('required')) {
973
        this.$element.on('invalid' + EVENT_KEY, function () {
974
          that.$button[0].classList.add('bs-invalid');
975

    
976
          that.$element
977
            .on('shown' + EVENT_KEY + '.invalid', function () {
978
              that.$element
979
                .val(that.$element.val()) // set the value to hide the validation message in Chrome when menu is opened
980
                .off('shown' + EVENT_KEY + '.invalid');
981
            })
982
            .on('rendered' + EVENT_KEY, function () {
983
              // if select is no longer invalid, remove the bs-invalid class
984
              if (this.validity.valid) that.$button[0].classList.remove('bs-invalid');
985
              that.$element.off('rendered' + EVENT_KEY);
986
            });
987

    
988
          that.$button.on('blur' + EVENT_KEY, function () {
989
            that.$element.trigger('focus').trigger('blur');
990
            that.$button.off('blur' + EVENT_KEY);
991
          });
992
        });
993
      }
994

    
995
      setTimeout(function () {
996
        that.createLi();
997
        that.$element.trigger('loaded' + EVENT_KEY);
998
      });
999
    },
1000

    
1001
    createDropdown: function () {
1002
      // Options
1003
      // If we are multiple or showTick option is set, then add the show-tick class
1004
      var showTick = (this.multiple || this.options.showTick) ? ' show-tick' : '',
1005
          inputGroup = '',
1006
          autofocus = this.autofocus ? ' autofocus' : '';
1007

    
1008
      if (version.major < 4 && this.$element.parent().hasClass('input-group')) {
1009
        inputGroup = ' input-group-btn';
1010
      }
1011

    
1012
      // Elements
1013
      var drop,
1014
          header = '',
1015
          searchbox = '',
1016
          actionsbox = '',
1017
          donebutton = '';
1018

    
1019
      if (this.options.header) {
1020
        header =
1021
          '<div class="' + classNames.POPOVERHEADER + '">' +
1022
            '<button type="button" class="close" aria-hidden="true">&times;</button>' +
1023
              this.options.header +
1024
          '</div>';
1025
      }
1026

    
1027
      if (this.options.liveSearch) {
1028
        searchbox =
1029
          '<div class="bs-searchbox">' +
1030
            '<input type="text" class="form-control" autocomplete="off"' +
1031
              (
1032
                this.options.liveSearchPlaceholder === null ? ''
1033
                :
1034
                ' placeholder="' + htmlEscape(this.options.liveSearchPlaceholder) + '"'
1035
              ) +
1036
              ' role="textbox" aria-label="Search">' +
1037
          '</div>';
1038
      }
1039

    
1040
      if (this.multiple && this.options.actionsBox) {
1041
        actionsbox =
1042
          '<div class="bs-actionsbox">' +
1043
            '<div class="btn-group btn-group-sm btn-block">' +
1044
              '<button type="button" class="actions-btn bs-select-all btn ' + classNames.BUTTONCLASS + '">' +
1045
                this.options.selectAllText +
1046
              '</button>' +
1047
              '<button type="button" class="actions-btn bs-deselect-all btn ' + classNames.BUTTONCLASS + '">' +
1048
                this.options.deselectAllText +
1049
              '</button>' +
1050
            '</div>' +
1051
          '</div>';
1052
      }
1053

    
1054
      if (this.multiple && this.options.doneButton) {
1055
        donebutton =
1056
          '<div class="bs-donebutton">' +
1057
            '<div class="btn-group btn-block">' +
1058
              '<button type="button" class="btn btn-sm ' + classNames.BUTTONCLASS + '">' +
1059
                this.options.doneButtonText +
1060
              '</button>' +
1061
            '</div>' +
1062
          '</div>';
1063
      }
1064

    
1065
      drop =
1066
        '<div class="dropdown bootstrap-select' + showTick + inputGroup + '">' +
1067
          '<button type="button" class="' + this.options.styleBase + ' dropdown-toggle" ' + (this.options.display === 'static' ? 'data-display="static"' : '') + 'data-toggle="dropdown"' + autofocus + ' role="button">' +
1068
            '<div class="filter-option">' +
1069
              '<div class="filter-option-inner">' +
1070
                '<div class="filter-option-inner-inner"></div>' +
1071
              '</div> ' +
1072
            '</div>' +
1073
            (
1074
              version.major === '4' ? ''
1075
              :
1076
              '<span class="bs-caret">' +
1077
                this.options.template.caret +
1078
              '</span>'
1079
            ) +
1080
          '</button>' +
1081
          '<div class="' + classNames.MENU + ' ' + (version.major === '4' ? '' : classNames.SHOW) + '" role="combobox">' +
1082
            header +
1083
            searchbox +
1084
            actionsbox +
1085
            '<div class="inner ' + classNames.SHOW + '" role="listbox" aria-expanded="false" tabindex="-1">' +
1086
                '<ul class="' + classNames.MENU + ' inner ' + (version.major === '4' ? classNames.SHOW : '') + '">' +
1087
                '</ul>' +
1088
            '</div>' +
1089
            donebutton +
1090
          '</div>' +
1091
        '</div>';
1092

    
1093
      return $(drop);
1094
    },
1095

    
1096
    setPositionData: function () {
1097
      this.selectpicker.view.canHighlight = [];
1098

    
1099
      for (var i = 0; i < this.selectpicker.current.data.length; i++) {
1100
        var li = this.selectpicker.current.data[i],
1101
            canHighlight = true;
1102

    
1103
        if (li.type === 'divider') {
1104
          canHighlight = false;
1105
          li.height = this.sizeInfo.dividerHeight;
1106
        } else if (li.type === 'optgroup-label') {
1107
          canHighlight = false;
1108
          li.height = this.sizeInfo.dropdownHeaderHeight;
1109
        } else {
1110
          li.height = this.sizeInfo.liHeight;
1111
        }
1112

    
1113
        if (li.disabled) canHighlight = false;
1114

    
1115
        this.selectpicker.view.canHighlight.push(canHighlight);
1116

    
1117
        li.position = (i === 0 ? 0 : this.selectpicker.current.data[i - 1].position) + li.height;
1118
      }
1119
    },
1120

    
1121
    isVirtual: function () {
1122
      return (this.options.virtualScroll !== false) && (this.selectpicker.main.elements.length >= this.options.virtualScroll) || this.options.virtualScroll === true;
1123
    },
1124

    
1125
    createView: function (isSearching, scrollTop) {
1126
      scrollTop = scrollTop || 0;
1127

    
1128
      var that = this;
1129

    
1130
      this.selectpicker.current = isSearching ? this.selectpicker.search : this.selectpicker.main;
1131

    
1132
      var active = [];
1133
      var selected;
1134
      var prevActive;
1135

    
1136
      this.setPositionData();
1137

    
1138
      scroll(scrollTop, true);
1139

    
1140
      this.$menuInner.off('scroll.createView').on('scroll.createView', function (e, updateValue) {
1141
        if (!that.noScroll) scroll(this.scrollTop, updateValue);
1142
        that.noScroll = false;
1143
      });
1144

    
1145
      function scroll (scrollTop, init) {
1146
        var size = that.selectpicker.current.elements.length,
1147
            chunks = [],
1148
            chunkSize,
1149
            chunkCount,
1150
            firstChunk,
1151
            lastChunk,
1152
            currentChunk,
1153
            prevPositions,
1154
            positionIsDifferent,
1155
            previousElements,
1156
            menuIsDifferent = true,
1157
            isVirtual = that.isVirtual();
1158

    
1159
        that.selectpicker.view.scrollTop = scrollTop;
1160

    
1161
        if (isVirtual === true) {
1162
          // if an option that is encountered that is wider than the current menu width, update the menu width accordingly
1163
          if (that.sizeInfo.hasScrollBar && that.$menu[0].offsetWidth > that.sizeInfo.totalMenuWidth) {
1164
            that.sizeInfo.menuWidth = that.$menu[0].offsetWidth;
1165
            that.sizeInfo.totalMenuWidth = that.sizeInfo.menuWidth + that.sizeInfo.scrollBarWidth;
1166
            that.$menu.css('min-width', that.sizeInfo.menuWidth);
1167
          }
1168
        }
1169

    
1170
        chunkSize = Math.ceil(that.sizeInfo.menuInnerHeight / that.sizeInfo.liHeight * 1.5); // number of options in a chunk
1171
        chunkCount = Math.round(size / chunkSize) || 1; // number of chunks
1172

    
1173
        for (var i = 0; i < chunkCount; i++) {
1174
          var endOfChunk = (i + 1) * chunkSize;
1175

    
1176
          if (i === chunkCount - 1) {
1177
            endOfChunk = size;
1178
          }
1179

    
1180
          chunks[i] = [
1181
            (i) * chunkSize + (!i ? 0 : 1),
1182
            endOfChunk
1183
          ];
1184

    
1185
          if (!size) break;
1186

    
1187
          if (currentChunk === undefined && scrollTop <= that.selectpicker.current.data[endOfChunk - 1].position - that.sizeInfo.menuInnerHeight) {
1188
            currentChunk = i;
1189
          }
1190
        }
1191

    
1192
        if (currentChunk === undefined) currentChunk = 0;
1193

    
1194
        prevPositions = [that.selectpicker.view.position0, that.selectpicker.view.position1];
1195

    
1196
        // always display previous, current, and next chunks
1197
        firstChunk = Math.max(0, currentChunk - 1);
1198
        lastChunk = Math.min(chunkCount - 1, currentChunk + 1);
1199

    
1200
        that.selectpicker.view.position0 = isVirtual === false ? 0 : (Math.max(0, chunks[firstChunk][0]) || 0);
1201
        that.selectpicker.view.position1 = isVirtual === false ? size : (Math.min(size, chunks[lastChunk][1]) || 0);
1202

    
1203
        positionIsDifferent = prevPositions[0] !== that.selectpicker.view.position0 || prevPositions[1] !== that.selectpicker.view.position1;
1204

    
1205
        if (that.activeIndex !== undefined) {
1206
          prevActive = that.selectpicker.main.elements[that.prevActiveIndex];
1207
          active = that.selectpicker.main.elements[that.activeIndex];
1208
          selected = that.selectpicker.main.elements[that.selectedIndex];
1209

    
1210
          if (init) {
1211
            if (that.activeIndex !== that.selectedIndex && active && active.length) {
1212
              active.classList.remove('active');
1213
              if (active.firstChild) active.firstChild.classList.remove('active');
1214
            }
1215
            that.activeIndex = undefined;
1216
          }
1217

    
1218
          if (that.activeIndex && that.activeIndex !== that.selectedIndex && selected && selected.length) {
1219
            selected.classList.remove('active');
1220
            if (selected.firstChild) selected.firstChild.classList.remove('active');
1221
          }
1222
        }
1223

    
1224
        if (that.prevActiveIndex !== undefined && that.prevActiveIndex !== that.activeIndex && that.prevActiveIndex !== that.selectedIndex && prevActive && prevActive.length) {
1225
          prevActive.classList.remove('active');
1226
          if (prevActive.firstChild) prevActive.firstChild.classList.remove('active');
1227
        }
1228

    
1229
        if (init || positionIsDifferent) {
1230
          previousElements = that.selectpicker.view.visibleElements ? that.selectpicker.view.visibleElements.slice() : [];
1231

    
1232
          if (isVirtual === false) {
1233
            that.selectpicker.view.visibleElements = that.selectpicker.current.elements;
1234
          } else {
1235
            that.selectpicker.view.visibleElements = that.selectpicker.current.elements.slice(that.selectpicker.view.position0, that.selectpicker.view.position1);
1236
          }
1237

    
1238
          that.setOptionStatus();
1239

    
1240
          // if searching, check to make sure the list has actually been updated before updating DOM
1241
          // this prevents unnecessary repaints
1242
          if (isSearching || (isVirtual === false && init)) menuIsDifferent = !isEqual(previousElements, that.selectpicker.view.visibleElements);
1243

    
1244
          // if virtual scroll is disabled and not searching,
1245
          // menu should never need to be updated more than once
1246
          if ((init || isVirtual === true) && menuIsDifferent) {
1247
            var menuInner = that.$menuInner[0],
1248
                menuFragment = document.createDocumentFragment(),
1249
                emptyMenu = menuInner.firstChild.cloneNode(false),
1250
                marginTop,
1251
                marginBottom,
1252
                elements = that.selectpicker.view.visibleElements,
1253
                toSanitize = [];
1254

    
1255
            // replace the existing UL with an empty one - this is faster than $.empty()
1256
            menuInner.replaceChild(emptyMenu, menuInner.firstChild);
1257

    
1258
            for (var i = 0, visibleElementsLen = elements.length; i < visibleElementsLen; i++) {
1259
              var element = elements[i],
1260
                  elText,
1261
                  elementData;
1262

    
1263
              if (that.options.sanitize) {
1264
                elText = element.lastChild;
1265

    
1266
                if (elText) {
1267
                  elementData = that.selectpicker.current.data[i + that.selectpicker.view.position0];
1268

    
1269
                  if (elementData && elementData.content && !elementData.sanitized) {
1270
                    toSanitize.push(elText);
1271
                    elementData.sanitized = true;
1272
                  }
1273
                }
1274
              }
1275

    
1276
              menuFragment.appendChild(element);
1277
            }
1278

    
1279
            if (that.options.sanitize && toSanitize.length) {
1280
              sanitizeHtml(toSanitize, that.options.whiteList, that.options.sanitizeFn);
1281
            }
1282

    
1283
            if (isVirtual === true) {
1284
              marginTop = (that.selectpicker.view.position0 === 0 ? 0 : that.selectpicker.current.data[that.selectpicker.view.position0 - 1].position);
1285
              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);
1286

    
1287
              menuInner.firstChild.style.marginTop = marginTop + 'px';
1288
              menuInner.firstChild.style.marginBottom = marginBottom + 'px';
1289
            }
1290

    
1291
            menuInner.firstChild.appendChild(menuFragment);
1292
          }
1293
        }
1294

    
1295
        that.prevActiveIndex = that.activeIndex;
1296

    
1297
        if (!that.options.liveSearch) {
1298
          that.$menuInner.trigger('focus');
1299
        } else if (isSearching && init) {
1300
          var index = 0,
1301
              newActive;
1302

    
1303
          if (!that.selectpicker.view.canHighlight[index]) {
1304
            index = 1 + that.selectpicker.view.canHighlight.slice(1).indexOf(true);
1305
          }
1306

    
1307
          newActive = that.selectpicker.view.visibleElements[index];
1308

    
1309
          if (that.selectpicker.view.currentActive) {
1310
            that.selectpicker.view.currentActive.classList.remove('active');
1311
            if (that.selectpicker.view.currentActive.firstChild) that.selectpicker.view.currentActive.firstChild.classList.remove('active');
1312
          }
1313

    
1314
          if (newActive) {
1315
            newActive.classList.add('active');
1316
            if (newActive.firstChild) newActive.firstChild.classList.add('active');
1317
          }
1318

    
1319
          that.activeIndex = (that.selectpicker.current.data[index] || {}).index;
1320
        }
1321
      }
1322

    
1323
      $(window)
1324
        .off('resize' + EVENT_KEY + '.' + this.selectId + '.createView')
1325
        .on('resize' + EVENT_KEY + '.' + this.selectId + '.createView', function () {
1326
          var isActive = that.$newElement.hasClass(classNames.SHOW);
1327

    
1328
          if (isActive) scroll(that.$menuInner[0].scrollTop);
1329
        });
1330
    },
1331

    
1332
    setPlaceholder: function () {
1333
      var updateIndex = false;
1334

    
1335
      if (this.options.title && !this.multiple) {
1336
        if (!this.selectpicker.view.titleOption) this.selectpicker.view.titleOption = document.createElement('option');
1337

    
1338
        // this option doesn't create a new <li> element, but does add a new option at the start,
1339
        // so startIndex should increase to prevent having to check every option for the bs-title-option class
1340
        updateIndex = true;
1341

    
1342
        var element = this.$element[0],
1343
            isSelected = false,
1344
            titleNotAppended = !this.selectpicker.view.titleOption.parentNode;
1345

    
1346
        if (titleNotAppended) {
1347
          // Use native JS to prepend option (faster)
1348
          this.selectpicker.view.titleOption.className = 'bs-title-option';
1349
          this.selectpicker.view.titleOption.value = '';
1350

    
1351
          // Check if selected or data-selected attribute is already set on an option. If not, select the titleOption option.
1352
          // the selected item may have been changed by user or programmatically before the bootstrap select plugin runs,
1353
          // if so, the select will have the data-selected attribute
1354
          var $opt = $(element.options[element.selectedIndex]);
1355
          isSelected = $opt.attr('selected') === undefined && this.$element.data('selected') === undefined;
1356
        }
1357

    
1358
        if (titleNotAppended || this.selectpicker.view.titleOption.index !== 0) {
1359
          element.insertBefore(this.selectpicker.view.titleOption, element.firstChild);
1360
        }
1361

    
1362
        // Set selected *after* appending to select,
1363
        // otherwise the option doesn't get selected in IE
1364
        // set using selectedIndex, as setting the selected attr to true here doesn't work in IE11
1365
        if (isSelected) element.selectedIndex = 0;
1366
      }
1367

    
1368
      return updateIndex;
1369
    },
1370

    
1371
    createLi: function () {
1372
      var that = this,
1373
          iconBase = this.options.iconBase,
1374
          optionSelector = ':not([hidden]):not([data-hidden="true"])',
1375
          mainElements = [],
1376
          mainData = [],
1377
          widestOptionLength = 0,
1378
          optID = 0,
1379
          startIndex = this.setPlaceholder() ? 1 : 0; // append the titleOption if necessary and skip the first option in the loop
1380

    
1381
      if (this.options.hideDisabled) optionSelector += ':not(:disabled)';
1382

    
1383
      if ((that.options.showTick || that.multiple) && !elementTemplates.checkMark.parentNode) {
1384
        elementTemplates.checkMark.className = iconBase + ' ' + that.options.tickIcon + ' check-mark';
1385
        elementTemplates.a.appendChild(elementTemplates.checkMark);
1386
      }
1387

    
1388
      var selectOptions = this.$element[0].querySelectorAll('select > *' + optionSelector);
1389

    
1390
      function addDivider (config) {
1391
        var previousData = mainData[mainData.length - 1];
1392

    
1393
        // ensure optgroup doesn't create back-to-back dividers
1394
        if (
1395
          previousData &&
1396
          previousData.type === 'divider' &&
1397
          (previousData.optID || config.optID)
1398
        ) {
1399
          return;
1400
        }
1401

    
1402
        config = config || {};
1403
        config.type = 'divider';
1404

    
1405
        mainElements.push(
1406
          generateOption.li(
1407
            false,
1408
            classNames.DIVIDER,
1409
            (config.optID ? config.optID + 'div' : undefined)
1410
          )
1411
        );
1412

    
1413
        mainData.push(config);
1414
      }
1415

    
1416
      function addOption (option, config) {
1417
        config = config || {};
1418

    
1419
        config.divider = option.getAttribute('data-divider') === 'true';
1420

    
1421
        if (config.divider) {
1422
          addDivider({
1423
            optID: config.optID
1424
          });
1425
        } else {
1426
          var liIndex = mainData.length,
1427
              cssText = option.style.cssText,
1428
              inlineStyle = cssText ? htmlEscape(cssText) : '',
1429
              optionClass = (option.className || '') + (config.optgroupClass || '');
1430

    
1431
          if (config.optID) optionClass = 'opt ' + optionClass;
1432

    
1433
          config.text = option.textContent;
1434

    
1435
          config.content = option.getAttribute('data-content');
1436
          config.tokens = option.getAttribute('data-tokens');
1437
          config.subtext = option.getAttribute('data-subtext');
1438
          config.icon = option.getAttribute('data-icon');
1439
          config.iconBase = iconBase;
1440

    
1441
          var textElement = generateOption.text(config);
1442

    
1443
          mainElements.push(
1444
            generateOption.li(
1445
              generateOption.a(
1446
                textElement,
1447
                optionClass,
1448
                inlineStyle
1449
              ),
1450
              '',
1451
              config.optID
1452
            )
1453
          );
1454

    
1455
          option.liIndex = liIndex;
1456

    
1457
          config.display = config.content || config.text;
1458
          config.type = 'option';
1459
          config.index = liIndex;
1460
          config.option = option;
1461
          config.disabled = config.disabled || option.disabled;
1462

    
1463
          mainData.push(config);
1464

    
1465
          var combinedLength = 0;
1466

    
1467
          // count the number of characters in the option - not perfect, but should work in most cases
1468
          if (config.display) combinedLength += config.display.length;
1469
          if (config.subtext) combinedLength += config.subtext.length;
1470
          // if there is an icon, ensure this option's width is checked
1471
          if (config.icon) combinedLength += 1;
1472

    
1473
          if (combinedLength > widestOptionLength) {
1474
            widestOptionLength = combinedLength;
1475

    
1476
            // guess which option is the widest
1477
            // use this when calculating menu width
1478
            // not perfect, but it's fast, and the width will be updating accordingly when scrolling
1479
            that.selectpicker.view.widestOption = mainElements[mainElements.length - 1];
1480
          }
1481
        }
1482
      }
1483

    
1484
      function addOptgroup (index, selectOptions) {
1485
        var optgroup = selectOptions[index],
1486
            previous = selectOptions[index - 1],
1487
            next = selectOptions[index + 1],
1488
            options = optgroup.querySelectorAll('option' + optionSelector);
1489

    
1490
        if (!options.length) return;
1491

    
1492
        var config = {
1493
              label: htmlEscape(optgroup.label),
1494
              subtext: optgroup.getAttribute('data-subtext'),
1495
              icon: optgroup.getAttribute('data-icon'),
1496
              iconBase: iconBase
1497
            },
1498
            optgroupClass = ' ' + (optgroup.className || ''),
1499
            headerIndex,
1500
            lastIndex;
1501

    
1502
        optID++;
1503

    
1504
        if (previous) {
1505
          addDivider({ optID: optID });
1506
        }
1507

    
1508
        var labelElement = generateOption.label(config);
1509

    
1510
        mainElements.push(
1511
          generateOption.li(labelElement, 'dropdown-header' + optgroupClass, optID)
1512
        );
1513

    
1514
        mainData.push({
1515
          display: config.label,
1516
          subtext: config.subtext,
1517
          type: 'optgroup-label',
1518
          optID: optID
1519
        });
1520

    
1521
        for (var j = 0, len = options.length; j < len; j++) {
1522
          var option = options[j];
1523

    
1524
          if (j === 0) {
1525
            headerIndex = mainData.length - 1;
1526
            lastIndex = headerIndex + len;
1527
          }
1528

    
1529
          addOption(option, {
1530
            headerIndex: headerIndex,
1531
            lastIndex: lastIndex,
1532
            optID: optID,
1533
            optgroupClass: optgroupClass,
1534
            disabled: optgroup.disabled
1535
          });
1536
        }
1537

    
1538
        if (next) {
1539
          addDivider({ optID: optID });
1540
        }
1541
      }
1542

    
1543
      for (var len = selectOptions.length; startIndex < len; startIndex++) {
1544
        var item = selectOptions[startIndex];
1545

    
1546
        if (item.tagName !== 'OPTGROUP') {
1547
          addOption(item, {});
1548
        } else {
1549
          addOptgroup(startIndex, selectOptions);
1550
        }
1551
      }
1552

    
1553
      this.selectpicker.main.elements = mainElements;
1554
      this.selectpicker.main.data = mainData;
1555

    
1556
      this.selectpicker.current = this.selectpicker.main;
1557
    },
1558

    
1559
    findLis: function () {
1560
      return this.$menuInner.find('.inner > li');
1561
    },
1562

    
1563
    render: function () {
1564
      // ensure titleOption is appended and selected (if necessary) before getting selectedOptions
1565
      this.setPlaceholder();
1566

    
1567
      var that = this,
1568
          selectedOptions = this.$element[0].selectedOptions,
1569
          selectedCount = selectedOptions.length,
1570
          button = this.$button[0],
1571
          buttonInner = button.querySelector('.filter-option-inner-inner'),
1572
          multipleSeparator = document.createTextNode(this.options.multipleSeparator),
1573
          titleFragment = elementTemplates.fragment.cloneNode(false),
1574
          showCount,
1575
          countMax,
1576
          hasContent = false;
1577

    
1578
      this.togglePlaceholder();
1579

    
1580
      this.tabIndex();
1581

    
1582
      if (this.options.selectedTextFormat === 'static') {
1583
        titleFragment = generateOption.text({ text: this.options.title }, true);
1584
      } else {
1585
        showCount = this.multiple && this.options.selectedTextFormat.indexOf('count') !== -1 && selectedCount > 1;
1586

    
1587
        // determine if the number of selected options will be shown (showCount === true)
1588
        if (showCount) {
1589
          countMax = this.options.selectedTextFormat.split('>');
1590
          showCount = (countMax.length > 1 && selectedCount > countMax[1]) || (countMax.length === 1 && selectedCount >= 2);
1591
        }
1592

    
1593
        // only loop through all selected options if the count won't be shown
1594
        if (showCount === false) {
1595
          for (var selectedIndex = 0; selectedIndex < selectedCount; selectedIndex++) {
1596
            if (selectedIndex < 50) {
1597
              var option = selectedOptions[selectedIndex],
1598
                  titleOptions = {},
1599
                  thisData = {
1600
                    content: option.getAttribute('data-content'),
1601
                    subtext: option.getAttribute('data-subtext'),
1602
                    icon: option.getAttribute('data-icon')
1603
                  };
1604

    
1605
              if (this.multiple && selectedIndex > 0) {
1606
                titleFragment.appendChild(multipleSeparator.cloneNode(false));
1607
              }
1608

    
1609
              if (option.title) {
1610
                titleOptions.text = option.title;
1611
              } else if (thisData.content && that.options.showContent) {
1612
                titleOptions.content = thisData.content.toString();
1613
                hasContent = true;
1614
              } else {
1615
                if (that.options.showIcon) {
1616
                  titleOptions.icon = thisData.icon;
1617
                  titleOptions.iconBase = this.options.iconBase;
1618
                }
1619
                if (that.options.showSubtext && !that.multiple && thisData.subtext) titleOptions.subtext = ' ' + thisData.subtext;
1620
                titleOptions.text = option.textContent.trim();
1621
              }
1622

    
1623
              titleFragment.appendChild(generateOption.text(titleOptions, true));
1624
            } else {
1625
              break;
1626
            }
1627
          }
1628

    
1629
          // add ellipsis
1630
          if (selectedCount > 49) {
1631
            titleFragment.appendChild(document.createTextNode('...'));
1632
          }
1633
        } else {
1634
          var optionSelector = ':not([hidden]):not([data-hidden="true"]):not([data-divider="true"])';
1635
          if (this.options.hideDisabled) optionSelector += ':not(:disabled)';
1636

    
1637
          // If this is a multiselect, and selectedTextFormat is count, then show 1 of 2 selected, etc.
1638
          var totalCount = this.$element[0].querySelectorAll('select > option' + optionSelector + ', optgroup' + optionSelector + ' option' + optionSelector).length,
1639
              tr8nText = (typeof this.options.countSelectedText === 'function') ? this.options.countSelectedText(selectedCount, totalCount) : this.options.countSelectedText;
1640

    
1641
          titleFragment = generateOption.text({
1642
            text: tr8nText.replace('{0}', selectedCount.toString()).replace('{1}', totalCount.toString())
1643
          }, true);
1644
        }
1645
      }
1646

    
1647
      if (this.options.title == undefined) {
1648
        // use .attr to ensure undefined is returned if title attribute is not set
1649
        this.options.title = this.$element.attr('title');
1650
      }
1651

    
1652
      // If the select doesn't have a title, then use the default, or if nothing is set at all, use noneSelectedText
1653
      if (!titleFragment.childNodes.length) {
1654
        titleFragment = generateOption.text({
1655
          text: typeof this.options.title !== 'undefined' ? this.options.title : this.options.noneSelectedText
1656
        }, true);
1657
      }
1658

    
1659
      // strip all HTML tags and trim the result, then unescape any escaped tags
1660
      button.title = titleFragment.textContent.replace(/<[^>]*>?/g, '').trim();
1661

    
1662
      if (this.options.sanitize && hasContent) {
1663
        sanitizeHtml([titleFragment], that.options.whiteList, that.options.sanitizeFn);
1664
      }
1665

    
1666
      buttonInner.innerHTML = '';
1667
      buttonInner.appendChild(titleFragment);
1668

    
1669
      if (version.major < 4 && this.$newElement[0].classList.contains('bs3-has-addon')) {
1670
        var filterExpand = button.querySelector('.filter-expand'),
1671
            clone = buttonInner.cloneNode(true);
1672

    
1673
        clone.className = 'filter-expand';
1674

    
1675
        if (filterExpand) {
1676
          button.replaceChild(clone, filterExpand);
1677
        } else {
1678
          button.appendChild(clone);
1679
        }
1680
      }
1681

    
1682
      this.$element.trigger('rendered' + EVENT_KEY);
1683
    },
1684

    
1685
    /**
1686
     * @param [style]
1687
     * @param [status]
1688
     */
1689
    setStyle: function (newStyle, status) {
1690
      var button = this.$button[0],
1691
          newElement = this.$newElement[0],
1692
          style = this.options.style.trim(),
1693
          buttonClass;
1694

    
1695
      if (this.$element.attr('class')) {
1696
        this.$newElement.addClass(this.$element.attr('class').replace(/selectpicker|mobile-device|bs-select-hidden|validate\[.*\]/gi, ''));
1697
      }
1698

    
1699
      if (version.major < 4) {
1700
        newElement.classList.add('bs3');
1701

    
1702
        if (newElement.parentNode.classList.contains('input-group') &&
1703
            (newElement.previousElementSibling || newElement.nextElementSibling) &&
1704
            (newElement.previousElementSibling || newElement.nextElementSibling).classList.contains('input-group-addon')
1705
        ) {
1706
          newElement.classList.add('bs3-has-addon');
1707
        }
1708
      }
1709

    
1710
      if (newStyle) {
1711
        buttonClass = newStyle.trim();
1712
      } else {
1713
        buttonClass = style;
1714
      }
1715

    
1716
      if (status == 'add') {
1717
        if (buttonClass) button.classList.add.apply(button.classList, buttonClass.split(' '));
1718
      } else if (status == 'remove') {
1719
        if (buttonClass) button.classList.remove.apply(button.classList, buttonClass.split(' '));
1720
      } else {
1721
        if (style) button.classList.remove.apply(button.classList, style.split(' '));
1722
        if (buttonClass) button.classList.add.apply(button.classList, buttonClass.split(' '));
1723
      }
1724
    },
1725

    
1726
    liHeight: function (refresh) {
1727
      if (!refresh && (this.options.size === false || this.sizeInfo)) return;
1728

    
1729
      if (!this.sizeInfo) this.sizeInfo = {};
1730

    
1731
      var newElement = document.createElement('div'),
1732
          menu = document.createElement('div'),
1733
          menuInner = document.createElement('div'),
1734
          menuInnerInner = document.createElement('ul'),
1735
          divider = document.createElement('li'),
1736
          dropdownHeader = document.createElement('li'),
1737
          li = document.createElement('li'),
1738
          a = document.createElement('a'),
1739
          text = document.createElement('span'),
1740
          header = this.options.header && this.$menu.find('.' + classNames.POPOVERHEADER).length > 0 ? this.$menu.find('.' + classNames.POPOVERHEADER)[0].cloneNode(true) : null,
1741
          search = this.options.liveSearch ? document.createElement('div') : null,
1742
          actions = this.options.actionsBox && this.multiple && this.$menu.find('.bs-actionsbox').length > 0 ? this.$menu.find('.bs-actionsbox')[0].cloneNode(true) : null,
1743
          doneButton = this.options.doneButton && this.multiple && this.$menu.find('.bs-donebutton').length > 0 ? this.$menu.find('.bs-donebutton')[0].cloneNode(true) : null,
1744
          firstOption = this.$element.find('option')[0];
1745

    
1746
      this.sizeInfo.selectWidth = this.$newElement[0].offsetWidth;
1747

    
1748
      text.className = 'text';
1749
      a.className = 'dropdown-item ' + (firstOption ? firstOption.className : '');
1750
      newElement.className = this.$menu[0].parentNode.className + ' ' + classNames.SHOW;
1751
      newElement.style.width = this.sizeInfo.selectWidth + 'px';
1752
      if (this.options.width === 'auto') menu.style.minWidth = 0;
1753
      menu.className = classNames.MENU + ' ' + classNames.SHOW;
1754
      menuInner.className = 'inner ' + classNames.SHOW;
1755
      menuInnerInner.className = classNames.MENU + ' inner ' + (version.major === '4' ? classNames.SHOW : '');
1756
      divider.className = classNames.DIVIDER;
1757
      dropdownHeader.className = 'dropdown-header';
1758

    
1759
      text.appendChild(document.createTextNode('\u200b'));
1760
      a.appendChild(text);
1761
      li.appendChild(a);
1762
      dropdownHeader.appendChild(text.cloneNode(true));
1763

    
1764
      if (this.selectpicker.view.widestOption) {
1765
        menuInnerInner.appendChild(this.selectpicker.view.widestOption.cloneNode(true));
1766
      }
1767

    
1768
      menuInnerInner.appendChild(li);
1769
      menuInnerInner.appendChild(divider);
1770
      menuInnerInner.appendChild(dropdownHeader);
1771
      if (header) menu.appendChild(header);
1772
      if (search) {
1773
        var input = document.createElement('input');
1774
        search.className = 'bs-searchbox';
1775
        input.className = 'form-control';
1776
        search.appendChild(input);
1777
        menu.appendChild(search);
1778
      }
1779
      if (actions) menu.appendChild(actions);
1780
      menuInner.appendChild(menuInnerInner);
1781
      menu.appendChild(menuInner);
1782
      if (doneButton) menu.appendChild(doneButton);
1783
      newElement.appendChild(menu);
1784

    
1785
      document.body.appendChild(newElement);
1786

    
1787
      var liHeight = li.offsetHeight,
1788
          dropdownHeaderHeight = dropdownHeader ? dropdownHeader.offsetHeight : 0,
1789
          headerHeight = header ? header.offsetHeight : 0,
1790
          searchHeight = search ? search.offsetHeight : 0,
1791
          actionsHeight = actions ? actions.offsetHeight : 0,
1792
          doneButtonHeight = doneButton ? doneButton.offsetHeight : 0,
1793
          dividerHeight = $(divider).outerHeight(true),
1794
          // fall back to jQuery if getComputedStyle is not supported
1795
          menuStyle = window.getComputedStyle ? window.getComputedStyle(menu) : false,
1796
          menuWidth = menu.offsetWidth,
1797
          $menu = menuStyle ? null : $(menu),
1798
          menuPadding = {
1799
            vert: toInteger(menuStyle ? menuStyle.paddingTop : $menu.css('paddingTop')) +
1800
                  toInteger(menuStyle ? menuStyle.paddingBottom : $menu.css('paddingBottom')) +
1801
                  toInteger(menuStyle ? menuStyle.borderTopWidth : $menu.css('borderTopWidth')) +
1802
                  toInteger(menuStyle ? menuStyle.borderBottomWidth : $menu.css('borderBottomWidth')),
1803
            horiz: toInteger(menuStyle ? menuStyle.paddingLeft : $menu.css('paddingLeft')) +
1804
                  toInteger(menuStyle ? menuStyle.paddingRight : $menu.css('paddingRight')) +
1805
                  toInteger(menuStyle ? menuStyle.borderLeftWidth : $menu.css('borderLeftWidth')) +
1806
                  toInteger(menuStyle ? menuStyle.borderRightWidth : $menu.css('borderRightWidth'))
1807
          },
1808
          menuExtras = {
1809
            vert: menuPadding.vert +
1810
                  toInteger(menuStyle ? menuStyle.marginTop : $menu.css('marginTop')) +
1811
                  toInteger(menuStyle ? menuStyle.marginBottom : $menu.css('marginBottom')) + 2,
1812
            horiz: menuPadding.horiz +
1813
                  toInteger(menuStyle ? menuStyle.marginLeft : $menu.css('marginLeft')) +
1814
                  toInteger(menuStyle ? menuStyle.marginRight : $menu.css('marginRight')) + 2
1815
          },
1816
          scrollBarWidth;
1817

    
1818
      menuInner.style.overflowY = 'scroll';
1819

    
1820
      scrollBarWidth = menu.offsetWidth - menuWidth;
1821

    
1822
      document.body.removeChild(newElement);
1823

    
1824
      this.sizeInfo.liHeight = liHeight;
1825
      this.sizeInfo.dropdownHeaderHeight = dropdownHeaderHeight;
1826
      this.sizeInfo.headerHeight = headerHeight;
1827
      this.sizeInfo.searchHeight = searchHeight;
1828
      this.sizeInfo.actionsHeight = actionsHeight;
1829
      this.sizeInfo.doneButtonHeight = doneButtonHeight;
1830
      this.sizeInfo.dividerHeight = dividerHeight;
1831
      this.sizeInfo.menuPadding = menuPadding;
1832
      this.sizeInfo.menuExtras = menuExtras;
1833
      this.sizeInfo.menuWidth = menuWidth;
1834
      this.sizeInfo.totalMenuWidth = this.sizeInfo.menuWidth;
1835
      this.sizeInfo.scrollBarWidth = scrollBarWidth;
1836
      this.sizeInfo.selectHeight = this.$newElement[0].offsetHeight;
1837

    
1838
      this.setPositionData();
1839
    },
1840

    
1841
    getSelectPosition: function () {
1842
      var that = this,
1843
          $window = $(window),
1844
          pos = that.$newElement.offset(),
1845
          $container = $(that.options.container),
1846
          containerPos;
1847

    
1848
      if (that.options.container && $container.length && !$container.is('body')) {
1849
        containerPos = $container.offset();
1850
        containerPos.top += parseInt($container.css('borderTopWidth'));
1851
        containerPos.left += parseInt($container.css('borderLeftWidth'));
1852
      } else {
1853
        containerPos = { top: 0, left: 0 };
1854
      }
1855

    
1856
      var winPad = that.options.windowPadding;
1857

    
1858
      this.sizeInfo.selectOffsetTop = pos.top - containerPos.top - $window.scrollTop();
1859
      this.sizeInfo.selectOffsetBot = $window.height() - this.sizeInfo.selectOffsetTop - this.sizeInfo.selectHeight - containerPos.top - winPad[2];
1860
      this.sizeInfo.selectOffsetLeft = pos.left - containerPos.left - $window.scrollLeft();
1861
      this.sizeInfo.selectOffsetRight = $window.width() - this.sizeInfo.selectOffsetLeft - this.sizeInfo.selectWidth - containerPos.left - winPad[1];
1862
      this.sizeInfo.selectOffsetTop -= winPad[0];
1863
      this.sizeInfo.selectOffsetLeft -= winPad[3];
1864
    },
1865

    
1866
    setMenuSize: function (isAuto) {
1867
      this.getSelectPosition();
1868

    
1869
      var selectWidth = this.sizeInfo.selectWidth,
1870
          liHeight = this.sizeInfo.liHeight,
1871
          headerHeight = this.sizeInfo.headerHeight,
1872
          searchHeight = this.sizeInfo.searchHeight,
1873
          actionsHeight = this.sizeInfo.actionsHeight,
1874
          doneButtonHeight = this.sizeInfo.doneButtonHeight,
1875
          divHeight = this.sizeInfo.dividerHeight,
1876
          menuPadding = this.sizeInfo.menuPadding,
1877
          menuInnerHeight,
1878
          menuHeight,
1879
          divLength = 0,
1880
          minHeight,
1881
          _minHeight,
1882
          maxHeight,
1883
          menuInnerMinHeight,
1884
          estimate;
1885

    
1886
      if (this.options.dropupAuto) {
1887
        // Get the estimated height of the menu without scrollbars.
1888
        // This is useful for smaller menus, where there might be plenty of room
1889
        // below the button without setting dropup, but we can't know
1890
        // the exact height of the menu until createView is called later
1891
        estimate = liHeight * this.selectpicker.current.elements.length + menuPadding.vert;
1892
        this.$newElement.toggleClass(classNames.DROPUP, this.sizeInfo.selectOffsetTop - this.sizeInfo.selectOffsetBot > this.sizeInfo.menuExtras.vert && estimate + this.sizeInfo.menuExtras.vert + 50 > this.sizeInfo.selectOffsetBot);
1893
      }
1894

    
1895
      if (this.options.size === 'auto') {
1896
        _minHeight = this.selectpicker.current.elements.length > 3 ? this.sizeInfo.liHeight * 3 + this.sizeInfo.menuExtras.vert - 2 : 0;
1897
        menuHeight = this.sizeInfo.selectOffsetBot - this.sizeInfo.menuExtras.vert;
1898
        minHeight = _minHeight + headerHeight + searchHeight + actionsHeight + doneButtonHeight;
1899
        menuInnerMinHeight = Math.max(_minHeight - menuPadding.vert, 0);
1900

    
1901
        if (this.$newElement.hasClass(classNames.DROPUP)) {
1902
          menuHeight = this.sizeInfo.selectOffsetTop - this.sizeInfo.menuExtras.vert;
1903
        }
1904

    
1905
        maxHeight = menuHeight;
1906
        menuInnerHeight = menuHeight - headerHeight - searchHeight - actionsHeight - doneButtonHeight - menuPadding.vert;
1907
      } else if (this.options.size && this.options.size != 'auto' && this.selectpicker.current.elements.length > this.options.size) {
1908
        for (var i = 0; i < this.options.size; i++) {
1909
          if (this.selectpicker.current.data[i].type === 'divider') divLength++;
1910
        }
1911

    
1912
        menuHeight = liHeight * this.options.size + divLength * divHeight + menuPadding.vert;
1913
        menuInnerHeight = menuHeight - menuPadding.vert;
1914
        maxHeight = menuHeight + headerHeight + searchHeight + actionsHeight + doneButtonHeight;
1915
        minHeight = menuInnerMinHeight = '';
1916
      }
1917

    
1918
      if (this.options.dropdownAlignRight === 'auto') {
1919
        this.$menu.toggleClass(classNames.MENURIGHT, this.sizeInfo.selectOffsetLeft > this.sizeInfo.selectOffsetRight && this.sizeInfo.selectOffsetRight < (this.sizeInfo.totalMenuWidth - selectWidth));
1920
      }
1921

    
1922
      this.$menu.css({
1923
        'max-height': maxHeight + 'px',
1924
        'overflow': 'hidden',
1925
        'min-height': minHeight + 'px'
1926
      });
1927

    
1928
      this.$menuInner.css({
1929
        'max-height': menuInnerHeight + 'px',
1930
        'overflow-y': 'auto',
1931
        'min-height': menuInnerMinHeight + 'px'
1932
      });
1933

    
1934
      // ensure menuInnerHeight is always a positive number to prevent issues calculating chunkSize in createView
1935
      this.sizeInfo.menuInnerHeight = Math.max(menuInnerHeight, 1);
1936

    
1937
      if (this.selectpicker.current.data.length && this.selectpicker.current.data[this.selectpicker.current.data.length - 1].position > this.sizeInfo.menuInnerHeight) {
1938
        this.sizeInfo.hasScrollBar = true;
1939
        this.sizeInfo.totalMenuWidth = this.sizeInfo.menuWidth + this.sizeInfo.scrollBarWidth;
1940

    
1941
        this.$menu.css('min-width', this.sizeInfo.totalMenuWidth);
1942
      }
1943

    
1944
      if (this.dropdown && this.dropdown._popper) this.dropdown._popper.update();
1945
    },
1946

    
1947
    setSize: function (refresh) {
1948
      this.liHeight(refresh);
1949

    
1950
      if (this.options.header) this.$menu.css('padding-top', 0);
1951
      if (this.options.size === false) return;
1952

    
1953
      var that = this,
1954
          $window = $(window),
1955
          selectedIndex,
1956
          offset = 0;
1957

    
1958
      this.setMenuSize();
1959

    
1960
      if (this.options.liveSearch) {
1961
        this.$searchbox
1962
          .off('input.setMenuSize propertychange.setMenuSize')
1963
          .on('input.setMenuSize propertychange.setMenuSize', function () {
1964
            return that.setMenuSize();
1965
          });
1966
      }
1967

    
1968
      if (this.options.size === 'auto') {
1969
        $window
1970
          .off('resize' + EVENT_KEY + '.' + this.selectId + '.setMenuSize' + ' scroll' + EVENT_KEY + '.' + this.selectId + '.setMenuSize')
1971
          .on('resize' + EVENT_KEY + '.' + this.selectId + '.setMenuSize' + ' scroll' + EVENT_KEY + '.' + this.selectId + '.setMenuSize', function () {
1972
            return that.setMenuSize();
1973
          });
1974
      } else if (this.options.size && this.options.size != 'auto' && this.selectpicker.current.elements.length > this.options.size) {
1975
        $window.off('resize' + EVENT_KEY + '.' + this.selectId + '.setMenuSize' + ' scroll' + EVENT_KEY + '.' + this.selectId + '.setMenuSize');
1976
      }
1977

    
1978
      if (refresh) {
1979
        offset = this.$menuInner[0].scrollTop;
1980
      } else if (!that.multiple) {
1981
        var element = that.$element[0];
1982
        selectedIndex = (element.options[element.selectedIndex] || {}).liIndex;
1983

    
1984
        if (typeof selectedIndex === 'number' && that.options.size !== false) {
1985
          offset = that.sizeInfo.liHeight * selectedIndex;
1986
          offset = offset - (that.sizeInfo.menuInnerHeight / 2) + (that.sizeInfo.liHeight / 2);
1987
        }
1988
      }
1989

    
1990
      that.createView(false, offset);
1991
    },
1992

    
1993
    setWidth: function () {
1994
      var that = this;
1995

    
1996
      if (this.options.width === 'auto') {
1997
        requestAnimationFrame(function () {
1998
          that.$menu.css('min-width', '0');
1999

    
2000
          that.$element.on('loaded' + EVENT_KEY, function () {
2001
            that.liHeight();
2002
            that.setMenuSize();
2003

    
2004
            // Get correct width if element is hidden
2005
            var $selectClone = that.$newElement.clone().appendTo('body'),
2006
                btnWidth = $selectClone.css('width', 'auto').children('button').outerWidth();
2007

    
2008
            $selectClone.remove();
2009

    
2010
            // Set width to whatever's larger, button title or longest option
2011
            that.sizeInfo.selectWidth = Math.max(that.sizeInfo.totalMenuWidth, btnWidth);
2012
            that.$newElement.css('width', that.sizeInfo.selectWidth + 'px');
2013
          });
2014
        });
2015
      } else if (this.options.width === 'fit') {
2016
        // Remove inline min-width so width can be changed from 'auto'
2017
        this.$menu.css('min-width', '');
2018
        this.$newElement.css('width', '').addClass('fit-width');
2019
      } else if (this.options.width) {
2020
        // Remove inline min-width so width can be changed from 'auto'
2021
        this.$menu.css('min-width', '');
2022
        this.$newElement.css('width', this.options.width);
2023
      } else {
2024
        // Remove inline min-width/width so width can be changed
2025
        this.$menu.css('min-width', '');
2026
        this.$newElement.css('width', '');
2027
      }
2028
      // Remove fit-width class if width is changed programmatically
2029
      if (this.$newElement.hasClass('fit-width') && this.options.width !== 'fit') {
2030
        this.$newElement[0].classList.remove('fit-width');
2031
      }
2032
    },
2033

    
2034
    selectPosition: function () {
2035
      this.$bsContainer = $('<div class="bs-container" />');
2036

    
2037
      var that = this,
2038
          $container = $(this.options.container),
2039
          pos,
2040
          containerPos,
2041
          actualHeight,
2042
          getPlacement = function ($element) {
2043
            var containerPosition = {},
2044
                // fall back to dropdown's default display setting if display is not manually set
2045
                display = that.options.display || (
2046
                  // Bootstrap 3 doesn't have $.fn.dropdown.Constructor.Default
2047
                  $.fn.dropdown.Constructor.Default ? $.fn.dropdown.Constructor.Default.display
2048
                  : false
2049
                );
2050

    
2051
            that.$bsContainer.addClass($element.attr('class').replace(/form-control|fit-width/gi, '')).toggleClass(classNames.DROPUP, $element.hasClass(classNames.DROPUP));
2052
            pos = $element.offset();
2053

    
2054
            if (!$container.is('body')) {
2055
              containerPos = $container.offset();
2056
              containerPos.top += parseInt($container.css('borderTopWidth')) - $container.scrollTop();
2057
              containerPos.left += parseInt($container.css('borderLeftWidth')) - $container.scrollLeft();
2058
            } else {
2059
              containerPos = { top: 0, left: 0 };
2060
            }
2061

    
2062
            actualHeight = $element.hasClass(classNames.DROPUP) ? 0 : $element[0].offsetHeight;
2063

    
2064
            // Bootstrap 4+ uses Popper for menu positioning
2065
            if (version.major < 4 || display === 'static') {
2066
              containerPosition.top = pos.top - containerPos.top + actualHeight;
2067
              containerPosition.left = pos.left - containerPos.left;
2068
            }
2069

    
2070
            containerPosition.width = $element[0].offsetWidth;
2071

    
2072
            that.$bsContainer.css(containerPosition);
2073
          };
2074

    
2075
      this.$button.on('click.bs.dropdown.data-api', function () {
2076
        if (that.isDisabled()) {
2077
          return;
2078
        }
2079

    
2080
        getPlacement(that.$newElement);
2081

    
2082
        that.$bsContainer
2083
          .appendTo(that.options.container)
2084
          .toggleClass(classNames.SHOW, !that.$button.hasClass(classNames.SHOW))
2085
          .append(that.$menu);
2086
      });
2087

    
2088
      $(window)
2089
        .off('resize' + EVENT_KEY + '.' + this.selectId + ' scroll' + EVENT_KEY + '.' + this.selectId)
2090
        .on('resize' + EVENT_KEY + '.' + this.selectId + ' scroll' + EVENT_KEY + '.' + this.selectId, function () {
2091
          var isActive = that.$newElement.hasClass(classNames.SHOW);
2092

    
2093
          if (isActive) getPlacement(that.$newElement);
2094
        });
2095

    
2096
      this.$element.on('hide' + EVENT_KEY, function () {
2097
        that.$menu.data('height', that.$menu.height());
2098
        that.$bsContainer.detach();
2099
      });
2100
    },
2101

    
2102
    setOptionStatus: function () {
2103
      var that = this;
2104

    
2105
      that.noScroll = false;
2106

    
2107
      if (that.selectpicker.view.visibleElements && that.selectpicker.view.visibleElements.length) {
2108
        for (var i = 0; i < that.selectpicker.view.visibleElements.length; i++) {
2109
          var liData = that.selectpicker.current.data[i + that.selectpicker.view.position0],
2110
              option = liData.option;
2111

    
2112
          if (option) {
2113
            that.setDisabled(
2114
              liData.index,
2115
              liData.disabled
2116
            );
2117

    
2118
            that.setSelected(
2119
              liData.index,
2120
              option.selected
2121
            );
2122
          }
2123
        }
2124
      }
2125
    },
2126

    
2127
    /**
2128
     * @param {number} index - the index of the option that is being changed
2129
     * @param {boolean} selected - true if the option is being selected, false if being deselected
2130
     */
2131
    setSelected: function (index, selected) {
2132
      var li = this.selectpicker.main.elements[index],
2133
          liData = this.selectpicker.main.data[index],
2134
          activeIndexIsSet = this.activeIndex !== undefined,
2135
          thisIsActive = this.activeIndex === index,
2136
          prevActive,
2137
          a,
2138
          // if current option is already active
2139
          // OR
2140
          // if the current option is being selected, it's NOT multiple, and
2141
          // activeIndex is undefined:
2142
          //  - when the menu is first being opened, OR
2143
          //  - after a search has been performed, OR
2144
          //  - 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)
2145
          keepActive = thisIsActive || (selected && !this.multiple && !activeIndexIsSet);
2146

    
2147
      liData.selected = selected;
2148

    
2149
      a = li.firstChild;
2150

    
2151
      if (selected) {
2152
        this.selectedIndex = index;
2153
      }
2154

    
2155
      li.classList.toggle('selected', selected);
2156
      li.classList.toggle('active', keepActive);
2157

    
2158
      if (keepActive) {
2159
        this.selectpicker.view.currentActive = li;
2160
        this.activeIndex = index;
2161
      }
2162

    
2163
      if (a) {
2164
        a.classList.toggle('selected', selected);
2165
        a.classList.toggle('active', keepActive);
2166
        a.setAttribute('aria-selected', selected);
2167
      }
2168

    
2169
      if (!keepActive) {
2170
        if (!activeIndexIsSet && selected && this.prevActiveIndex !== undefined) {
2171
          prevActive = this.selectpicker.main.elements[this.prevActiveIndex];
2172

    
2173
          prevActive.classList.remove('active');
2174
          if (prevActive.firstChild) {
2175
            prevActive.firstChild.classList.remove('active');
2176
          }
2177
        }
2178
      }
2179
    },
2180

    
2181
    /**
2182
     * @param {number} index - the index of the option that is being disabled
2183
     * @param {boolean} disabled - true if the option is being disabled, false if being enabled
2184
     */
2185
    setDisabled: function (index, disabled) {
2186
      var li = this.selectpicker.main.elements[index],
2187
          a;
2188

    
2189
      this.selectpicker.main.data[index].disabled = disabled;
2190

    
2191
      a = li.firstChild;
2192

    
2193
      li.classList.toggle(classNames.DISABLED, disabled);
2194

    
2195
      if (a) {
2196
        if (version.major === '4') a.classList.toggle(classNames.DISABLED, disabled);
2197

    
2198
        a.setAttribute('aria-disabled', disabled);
2199

    
2200
        if (disabled) {
2201
          a.setAttribute('tabindex', -1);
2202
        } else {
2203
          a.setAttribute('tabindex', 0);
2204
        }
2205
      }
2206
    },
2207

    
2208
    isDisabled: function () {
2209
      return this.$element[0].disabled;
2210
    },
2211

    
2212
    checkDisabled: function () {
2213
      var that = this;
2214

    
2215
      if (this.isDisabled()) {
2216
        this.$newElement[0].classList.add(classNames.DISABLED);
2217
        this.$button.addClass(classNames.DISABLED).attr('tabindex', -1).attr('aria-disabled', true);
2218
      } else {
2219
        if (this.$button[0].classList.contains(classNames.DISABLED)) {
2220
          this.$newElement[0].classList.remove(classNames.DISABLED);
2221
          this.$button.removeClass(classNames.DISABLED).attr('aria-disabled', false);
2222
        }
2223

    
2224
        if (this.$button.attr('tabindex') == -1 && !this.$element.data('tabindex')) {
2225
          this.$button.removeAttr('tabindex');
2226
        }
2227
      }
2228

    
2229
      this.$button.on('click', function () {
2230
        return !that.isDisabled();
2231
      });
2232
    },
2233

    
2234
    togglePlaceholder: function () {
2235
      // much faster than calling $.val()
2236
      var element = this.$element[0],
2237
          selectedIndex = element.selectedIndex,
2238
          nothingSelected = selectedIndex === -1;
2239

    
2240
      if (!nothingSelected && !element.options[selectedIndex].value) nothingSelected = true;
2241

    
2242
      this.$button.toggleClass('bs-placeholder', nothingSelected);
2243
    },
2244

    
2245
    tabIndex: function () {
2246
      if (this.$element.data('tabindex') !== this.$element.attr('tabindex') &&
2247
        (this.$element.attr('tabindex') !== -98 && this.$element.attr('tabindex') !== '-98')) {
2248
        this.$element.data('tabindex', this.$element.attr('tabindex'));
2249
        this.$button.attr('tabindex', this.$element.data('tabindex'));
2250
      }
2251

    
2252
      this.$element.attr('tabindex', -98);
2253
    },
2254

    
2255
    clickListener: function () {
2256
      var that = this,
2257
          $document = $(document);
2258

    
2259
      $document.data('spaceSelect', false);
2260

    
2261
      this.$button.on('keyup', function (e) {
2262
        if (/(32)/.test(e.keyCode.toString(10)) && $document.data('spaceSelect')) {
2263
          e.preventDefault();
2264
          $document.data('spaceSelect', false);
2265
        }
2266
      });
2267

    
2268
      this.$newElement.on('show.bs.dropdown', function () {
2269
        if (version.major > 3 && !that.dropdown) {
2270
          that.dropdown = that.$button.data('bs.dropdown');
2271
          that.dropdown._menu = that.$menu[0];
2272
        }
2273
      });
2274

    
2275
      this.$button.on('click.bs.dropdown.data-api', function () {
2276
        if (!that.$newElement.hasClass(classNames.SHOW)) {
2277
          that.setSize();
2278
        }
2279
      });
2280

    
2281
      function setFocus () {
2282
        if (that.options.liveSearch) {
2283
          that.$searchbox.trigger('focus');
2284
        } else {
2285
          that.$menuInner.trigger('focus');
2286
        }
2287
      }
2288

    
2289
      function checkPopperExists () {
2290
        if (that.dropdown && that.dropdown._popper && that.dropdown._popper.state.isCreated) {
2291
          setFocus();
2292
        } else {
2293
          requestAnimationFrame(checkPopperExists);
2294
        }
2295
      }
2296

    
2297
      this.$element.on('shown' + EVENT_KEY, function () {
2298
        if (that.$menuInner[0].scrollTop !== that.selectpicker.view.scrollTop) {
2299
          that.$menuInner[0].scrollTop = that.selectpicker.view.scrollTop;
2300
        }
2301

    
2302
        if (version.major > 3) {
2303
          requestAnimationFrame(checkPopperExists);
2304
        } else {
2305
          setFocus();
2306
        }
2307
      });
2308

    
2309
      this.$menuInner.on('click', 'li a', function (e, retainActive) {
2310
        var $this = $(this),
2311
            position0 = that.isVirtual() ? that.selectpicker.view.position0 : 0,
2312
            clickedData = that.selectpicker.current.data[$this.parent().index() + position0],
2313
            clickedIndex = clickedData.index,
2314
            prevValue = getSelectValues(that.$element[0]),
2315
            prevIndex = that.$element.prop('selectedIndex'),
2316
            triggerChange = true;
2317

    
2318
        // Don't close on multi choice menu
2319
        if (that.multiple && that.options.maxOptions !== 1) {
2320
          e.stopPropagation();
2321
        }
2322

    
2323
        e.preventDefault();
2324

    
2325
        // Don't run if the select is disabled
2326
        if (!that.isDisabled() && !$this.parent().hasClass(classNames.DISABLED)) {
2327
          var $options = that.$element.find('option'),
2328
              option = clickedData.option,
2329
              $option = $(option),
2330
              state = option.selected,
2331
              $optgroup = $option.parent('optgroup'),
2332
              $optgroupOptions = $optgroup.find('option'),
2333
              maxOptions = that.options.maxOptions,
2334
              maxOptionsGrp = $optgroup.data('maxOptions') || false;
2335

    
2336
          if (clickedIndex === that.activeIndex) retainActive = true;
2337

    
2338
          if (!retainActive) {
2339
            that.prevActiveIndex = that.activeIndex;
2340
            that.activeIndex = undefined;
2341
          }
2342

    
2343
          if (!that.multiple) { // Deselect all others if not multi select box
2344
            $options.prop('selected', false);
2345
            option.selected = true;
2346
            that.setSelected(clickedIndex, true);
2347
          } else { // Toggle the one we have chosen if we are multi select.
2348
            option.selected = !state;
2349

    
2350
            that.setSelected(clickedIndex, !state);
2351
            $this.trigger('blur');
2352

    
2353
            if (maxOptions !== false || maxOptionsGrp !== false) {
2354
              var maxReached = maxOptions < $options.filter(':selected').length,
2355
                  maxReachedGrp = maxOptionsGrp < $optgroup.find('option:selected').length;
2356

    
2357
              if ((maxOptions && maxReached) || (maxOptionsGrp && maxReachedGrp)) {
2358
                if (maxOptions && maxOptions == 1) {
2359
                  $options.prop('selected', false);
2360
                  $option.prop('selected', true);
2361

    
2362
                  for (var i = 0; i < $options.length; i++) {
2363
                    that.setSelected(i, false);
2364
                  }
2365

    
2366
                  that.setSelected(clickedIndex, true);
2367
                } else if (maxOptionsGrp && maxOptionsGrp == 1) {
2368
                  $optgroup.find('option:selected').prop('selected', false);
2369
                  $option.prop('selected', true);
2370

    
2371
                  for (var i = 0; i < $optgroupOptions.length; i++) {
2372
                    var option = $optgroupOptions[i];
2373
                    that.setSelected($options.index(option), false);
2374
                  }
2375

    
2376
                  that.setSelected(clickedIndex, true);
2377
                } else {
2378
                  var maxOptionsText = typeof that.options.maxOptionsText === 'string' ? [that.options.maxOptionsText, that.options.maxOptionsText] : that.options.maxOptionsText,
2379
                      maxOptionsArr = typeof maxOptionsText === 'function' ? maxOptionsText(maxOptions, maxOptionsGrp) : maxOptionsText,
2380
                      maxTxt = maxOptionsArr[0].replace('{n}', maxOptions),
2381
                      maxTxtGrp = maxOptionsArr[1].replace('{n}', maxOptionsGrp),
2382
                      $notify = $('<div class="notify"></div>');
2383
                  // If {var} is set in array, replace it
2384
                  /** @deprecated */
2385
                  if (maxOptionsArr[2]) {
2386
                    maxTxt = maxTxt.replace('{var}', maxOptionsArr[2][maxOptions > 1 ? 0 : 1]);
2387
                    maxTxtGrp = maxTxtGrp.replace('{var}', maxOptionsArr[2][maxOptionsGrp > 1 ? 0 : 1]);
2388
                  }
2389

    
2390
                  $option.prop('selected', false);
2391

    
2392
                  that.$menu.append($notify);
2393

    
2394
                  if (maxOptions && maxReached) {
2395
                    $notify.append($('<div>' + maxTxt + '</div>'));
2396
                    triggerChange = false;
2397
                    that.$element.trigger('maxReached' + EVENT_KEY);
2398
                  }
2399

    
2400
                  if (maxOptionsGrp && maxReachedGrp) {
2401
                    $notify.append($('<div>' + maxTxtGrp + '</div>'));
2402
                    triggerChange = false;
2403
                    that.$element.trigger('maxReachedGrp' + EVENT_KEY);
2404
                  }
2405

    
2406
                  setTimeout(function () {
2407
                    that.setSelected(clickedIndex, false);
2408
                  }, 10);
2409

    
2410
                  $notify.delay(750).fadeOut(300, function () {
2411
                    $(this).remove();
2412
                  });
2413
                }
2414
              }
2415
            }
2416
          }
2417

    
2418
          if (!that.multiple || (that.multiple && that.options.maxOptions === 1)) {
2419
            that.$button.trigger('focus');
2420
          } else if (that.options.liveSearch) {
2421
            that.$searchbox.trigger('focus');
2422
          }
2423

    
2424
          // Trigger select 'change'
2425
          if (triggerChange) {
2426
            if ((prevValue != getSelectValues(that.$element[0]) && that.multiple) || (prevIndex != that.$element.prop('selectedIndex') && !that.multiple)) {
2427
              // $option.prop('selected') is current option state (selected/unselected). prevValue is the value of the select prior to being changed.
2428
              changedArguments = [option.index, $option.prop('selected'), prevValue];
2429
              that.$element
2430
                .triggerNative('change');
2431
            }
2432
          }
2433
        }
2434
      });
2435

    
2436
      this.$menu.on('click', 'li.' + classNames.DISABLED + ' a, .' + classNames.POPOVERHEADER + ', .' + classNames.POPOVERHEADER + ' :not(.close)', function (e) {
2437
        if (e.currentTarget == this) {
2438
          e.preventDefault();
2439
          e.stopPropagation();
2440
          if (that.options.liveSearch && !$(e.target).hasClass('close')) {
2441
            that.$searchbox.trigger('focus');
2442
          } else {
2443
            that.$button.trigger('focus');
2444
          }
2445
        }
2446
      });
2447

    
2448
      this.$menuInner.on('click', '.divider, .dropdown-header', function (e) {
2449
        e.preventDefault();
2450
        e.stopPropagation();
2451
        if (that.options.liveSearch) {
2452
          that.$searchbox.trigger('focus');
2453
        } else {
2454
          that.$button.trigger('focus');
2455
        }
2456
      });
2457

    
2458
      this.$menu.on('click', '.' + classNames.POPOVERHEADER + ' .close', function () {
2459
        that.$button.trigger('click');
2460
      });
2461

    
2462
      this.$searchbox.on('click', function (e) {
2463
        e.stopPropagation();
2464
      });
2465

    
2466
      this.$menu.on('click', '.actions-btn', function (e) {
2467
        if (that.options.liveSearch) {
2468
          that.$searchbox.trigger('focus');
2469
        } else {
2470
          that.$button.trigger('focus');
2471
        }
2472

    
2473
        e.preventDefault();
2474
        e.stopPropagation();
2475

    
2476
        if ($(this).hasClass('bs-select-all')) {
2477
          that.selectAll();
2478
        } else {
2479
          that.deselectAll();
2480
        }
2481
      });
2482

    
2483
      this.$element
2484
        .on('change' + EVENT_KEY, function () {
2485
          that.render();
2486
          that.$element.trigger('changed' + EVENT_KEY, changedArguments);
2487
          changedArguments = null;
2488
        })
2489
        .on('focus' + EVENT_KEY, function () {
2490
          if (!that.options.mobile) that.$button.trigger('focus');
2491
        });
2492
    },
2493

    
2494
    liveSearchListener: function () {
2495
      var that = this,
2496
          noResults = document.createElement('li');
2497

    
2498
      this.$button.on('click.bs.dropdown.data-api', function () {
2499
        if (!!that.$searchbox.val()) {
2500
          that.$searchbox.val('');
2501
        }
2502
      });
2503

    
2504
      this.$searchbox.on('click.bs.dropdown.data-api focus.bs.dropdown.data-api touchend.bs.dropdown.data-api', function (e) {
2505
        e.stopPropagation();
2506
      });
2507

    
2508
      this.$searchbox.on('input propertychange', function () {
2509
        var searchValue = that.$searchbox.val();
2510

    
2511
        that.selectpicker.search.elements = [];
2512
        that.selectpicker.search.data = [];
2513

    
2514
        if (searchValue) {
2515
          var i,
2516
              searchMatch = [],
2517
              q = searchValue.toUpperCase(),
2518
              cache = {},
2519
              cacheArr = [],
2520
              searchStyle = that._searchStyle(),
2521
              normalizeSearch = that.options.liveSearchNormalize;
2522

    
2523
          if (normalizeSearch) q = normalizeToBase(q);
2524

    
2525
          that._$lisSelected = that.$menuInner.find('.selected');
2526

    
2527
          for (var i = 0; i < that.selectpicker.main.data.length; i++) {
2528
            var li = that.selectpicker.main.data[i];
2529

    
2530
            if (!cache[i]) {
2531
              cache[i] = stringSearch(li, q, searchStyle, normalizeSearch);
2532
            }
2533

    
2534
            if (cache[i] && li.headerIndex !== undefined && cacheArr.indexOf(li.headerIndex) === -1) {
2535
              if (li.headerIndex > 0) {
2536
                cache[li.headerIndex - 1] = true;
2537
                cacheArr.push(li.headerIndex - 1);
2538
              }
2539

    
2540
              cache[li.headerIndex] = true;
2541
              cacheArr.push(li.headerIndex);
2542

    
2543
              cache[li.lastIndex + 1] = true;
2544
            }
2545

    
2546
            if (cache[i] && li.type !== 'optgroup-label') cacheArr.push(i);
2547
          }
2548

    
2549
          for (var i = 0, cacheLen = cacheArr.length; i < cacheLen; i++) {
2550
            var index = cacheArr[i],
2551
                prevIndex = cacheArr[i - 1],
2552
                li = that.selectpicker.main.data[index],
2553
                liPrev = that.selectpicker.main.data[prevIndex];
2554

    
2555
            if (li.type !== 'divider' || (li.type === 'divider' && liPrev && liPrev.type !== 'divider' && cacheLen - 1 !== i)) {
2556
              that.selectpicker.search.data.push(li);
2557
              searchMatch.push(that.selectpicker.main.elements[index]);
2558
            }
2559
          }
2560

    
2561
          that.activeIndex = undefined;
2562
          that.noScroll = true;
2563
          that.$menuInner.scrollTop(0);
2564
          that.selectpicker.search.elements = searchMatch;
2565
          that.createView(true);
2566

    
2567
          if (!searchMatch.length) {
2568
            noResults.className = 'no-results';
2569
            noResults.innerHTML = that.options.noneResultsText.replace('{0}', '"' + htmlEscape(searchValue) + '"');
2570
            that.$menuInner[0].firstChild.appendChild(noResults);
2571
          }
2572
        } else {
2573
          that.$menuInner.scrollTop(0);
2574
          that.createView(false);
2575
        }
2576
      });
2577
    },
2578

    
2579
    _searchStyle: function () {
2580
      return this.options.liveSearchStyle || 'contains';
2581
    },
2582

    
2583
    val: function (value) {
2584
      if (typeof value !== 'undefined') {
2585
        var prevValue = getSelectValues(this.$element[0]);
2586

    
2587
        changedArguments = [null, null, prevValue];
2588

    
2589
        this.$element
2590
          .val(value)
2591
          .trigger('changed' + EVENT_KEY, changedArguments);
2592

    
2593
        this.render();
2594

    
2595
        changedArguments = null;
2596

    
2597
        return this.$element;
2598
      } else {
2599
        return this.$element.val();
2600
      }
2601
    },
2602

    
2603
    changeAll: function (status) {
2604
      if (!this.multiple) return;
2605
      if (typeof status === 'undefined') status = true;
2606

    
2607
      var element = this.$element[0],
2608
          previousSelected = 0,
2609
          currentSelected = 0,
2610
          prevValue = getSelectValues(element);
2611

    
2612
      element.classList.add('bs-select-hidden');
2613

    
2614
      for (var i = 0, len = this.selectpicker.current.elements.length; i < len; i++) {
2615
        var liData = this.selectpicker.current.data[i],
2616
            option = liData.option;
2617

    
2618
        if (option && !liData.disabled && liData.type !== 'divider') {
2619
          if (liData.selected) previousSelected++;
2620
          option.selected = status;
2621
          if (status) currentSelected++;
2622
        }
2623
      }
2624

    
2625
      element.classList.remove('bs-select-hidden');
2626

    
2627
      if (previousSelected === currentSelected) return;
2628

    
2629
      this.setOptionStatus();
2630

    
2631
      this.togglePlaceholder();
2632

    
2633
      changedArguments = [null, null, prevValue];
2634

    
2635
      this.$element
2636
        .triggerNative('change');
2637
    },
2638

    
2639
    selectAll: function () {
2640
      return this.changeAll(true);
2641
    },
2642

    
2643
    deselectAll: function () {
2644
      return this.changeAll(false);
2645
    },
2646

    
2647
    toggle: function (e) {
2648
      e = e || window.event;
2649

    
2650
      if (e) e.stopPropagation();
2651

    
2652
      this.$button.trigger('click.bs.dropdown.data-api');
2653
    },
2654

    
2655
    keydown: function (e) {
2656
      var $this = $(this),
2657
          isToggle = $this.hasClass('dropdown-toggle'),
2658
          $parent = isToggle ? $this.closest('.dropdown') : $this.closest(Selector.MENU),
2659
          that = $parent.data('this'),
2660
          $items = that.findLis(),
2661
          index,
2662
          isActive,
2663
          liActive,
2664
          activeLi,
2665
          offset,
2666
          updateScroll = false,
2667
          downOnTab = e.which === keyCodes.TAB && !isToggle && !that.options.selectOnTab,
2668
          isArrowKey = REGEXP_ARROW.test(e.which) || downOnTab,
2669
          scrollTop = that.$menuInner[0].scrollTop,
2670
          isVirtual = that.isVirtual(),
2671
          position0 = isVirtual === true ? that.selectpicker.view.position0 : 0;
2672

    
2673
      isActive = that.$newElement.hasClass(classNames.SHOW);
2674

    
2675
      if (
2676
        !isActive &&
2677
        (
2678
          isArrowKey ||
2679
          (e.which >= 48 && e.which <= 57) ||
2680
          (e.which >= 96 && e.which <= 105) ||
2681
          (e.which >= 65 && e.which <= 90)
2682
        )
2683
      ) {
2684
        that.$button.trigger('click.bs.dropdown.data-api');
2685

    
2686
        if (that.options.liveSearch) {
2687
          that.$searchbox.trigger('focus');
2688
          return;
2689
        }
2690
      }
2691

    
2692
      if (e.which === keyCodes.ESCAPE && isActive) {
2693
        e.preventDefault();
2694
        that.$button.trigger('click.bs.dropdown.data-api').trigger('focus');
2695
      }
2696

    
2697
      if (isArrowKey) { // if up or down
2698
        if (!$items.length) return;
2699

    
2700
        // $items.index/.filter is too slow with a large list and no virtual scroll
2701
        index = isVirtual === true ? $items.index($items.filter('.active')) : that.activeIndex;
2702

    
2703
        if (index === undefined) index = -1;
2704

    
2705
        if (index !== -1) {
2706
          liActive = that.selectpicker.current.elements[index + position0];
2707
          liActive.classList.remove('active');
2708
          if (liActive.firstChild) liActive.firstChild.classList.remove('active');
2709
        }
2710

    
2711
        if (e.which === keyCodes.ARROW_UP) { // up
2712
          if (index !== -1) index--;
2713
          if (index + position0 < 0) index += $items.length;
2714

    
2715
          if (!that.selectpicker.view.canHighlight[index + position0]) {
2716
            index = that.selectpicker.view.canHighlight.slice(0, index + position0).lastIndexOf(true) - position0;
2717
            if (index === -1) index = $items.length - 1;
2718
          }
2719
        } else if (e.which === keyCodes.ARROW_DOWN || downOnTab) { // down
2720
          index++;
2721
          if (index + position0 >= that.selectpicker.view.canHighlight.length) index = 0;
2722

    
2723
          if (!that.selectpicker.view.canHighlight[index + position0]) {
2724
            index = index + 1 + that.selectpicker.view.canHighlight.slice(index + position0 + 1).indexOf(true);
2725
          }
2726
        }
2727

    
2728
        e.preventDefault();
2729

    
2730
        var liActiveIndex = position0 + index;
2731

    
2732
        if (e.which === keyCodes.ARROW_UP) { // up
2733
          // scroll to bottom and highlight last option
2734
          if (position0 === 0 && index === $items.length - 1) {
2735
            that.$menuInner[0].scrollTop = that.$menuInner[0].scrollHeight;
2736

    
2737
            liActiveIndex = that.selectpicker.current.elements.length - 1;
2738
          } else {
2739
            activeLi = that.selectpicker.current.data[liActiveIndex];
2740
            offset = activeLi.position - activeLi.height;
2741

    
2742
            updateScroll = offset < scrollTop;
2743
          }
2744
        } else if (e.which === keyCodes.ARROW_DOWN || downOnTab) { // down
2745
          // scroll to top and highlight first option
2746
          if (index === 0) {
2747
            that.$menuInner[0].scrollTop = 0;
2748

    
2749
            liActiveIndex = 0;
2750
          } else {
2751
            activeLi = that.selectpicker.current.data[liActiveIndex];
2752
            offset = activeLi.position - that.sizeInfo.menuInnerHeight;
2753

    
2754
            updateScroll = offset > scrollTop;
2755
          }
2756
        }
2757

    
2758
        liActive = that.selectpicker.current.elements[liActiveIndex];
2759

    
2760
        if (liActive) {
2761
          liActive.classList.add('active');
2762
          if (liActive.firstChild) liActive.firstChild.classList.add('active');
2763
        }
2764

    
2765
        that.activeIndex = that.selectpicker.current.data[liActiveIndex].index;
2766

    
2767
        that.selectpicker.view.currentActive = liActive;
2768

    
2769
        if (updateScroll) that.$menuInner[0].scrollTop = offset;
2770

    
2771
        if (that.options.liveSearch) {
2772
          that.$searchbox.trigger('focus');
2773
        } else {
2774
          $this.trigger('focus');
2775
        }
2776
      } else if (
2777
        (!$this.is('input') && !REGEXP_TAB_OR_ESCAPE.test(e.which)) ||
2778
        (e.which === keyCodes.SPACE && that.selectpicker.keydown.keyHistory)
2779
      ) {
2780
        var searchMatch,
2781
            matches = [],
2782
            keyHistory;
2783

    
2784
        e.preventDefault();
2785

    
2786
        that.selectpicker.keydown.keyHistory += keyCodeMap[e.which];
2787

    
2788
        if (that.selectpicker.keydown.resetKeyHistory.cancel) clearTimeout(that.selectpicker.keydown.resetKeyHistory.cancel);
2789
        that.selectpicker.keydown.resetKeyHistory.cancel = that.selectpicker.keydown.resetKeyHistory.start();
2790

    
2791
        keyHistory = that.selectpicker.keydown.keyHistory;
2792

    
2793
        // if all letters are the same, set keyHistory to just the first character when searching
2794
        if (/^(.)\1+$/.test(keyHistory)) {
2795
          keyHistory = keyHistory.charAt(0);
2796
        }
2797

    
2798
        // find matches
2799
        for (var i = 0; i < that.selectpicker.current.data.length; i++) {
2800
          var li = that.selectpicker.current.data[i],
2801
              hasMatch;
2802

    
2803
          hasMatch = stringSearch(li, keyHistory, 'startsWith', true);
2804

    
2805
          if (hasMatch && that.selectpicker.view.canHighlight[i]) {
2806
            matches.push(li.index);
2807
          }
2808
        }
2809

    
2810
        if (matches.length) {
2811
          var matchIndex = 0;
2812

    
2813
          $items.removeClass('active').find('a').removeClass('active');
2814

    
2815
          // either only one key has been pressed or they are all the same key
2816
          if (keyHistory.length === 1) {
2817
            matchIndex = matches.indexOf(that.activeIndex);
2818

    
2819
            if (matchIndex === -1 || matchIndex === matches.length - 1) {
2820
              matchIndex = 0;
2821
            } else {
2822
              matchIndex++;
2823
            }
2824
          }
2825

    
2826
          searchMatch = matches[matchIndex];
2827

    
2828
          activeLi = that.selectpicker.main.data[searchMatch];
2829

    
2830
          if (scrollTop - activeLi.position > 0) {
2831
            offset = activeLi.position - activeLi.height;
2832
            updateScroll = true;
2833
          } else {
2834
            offset = activeLi.position - that.sizeInfo.menuInnerHeight;
2835
            // if the option is already visible at the current scroll position, just keep it the same
2836
            updateScroll = activeLi.position > scrollTop + that.sizeInfo.menuInnerHeight;
2837
          }
2838

    
2839
          liActive = that.selectpicker.main.elements[searchMatch];
2840
          liActive.classList.add('active');
2841
          if (liActive.firstChild) liActive.firstChild.classList.add('active');
2842
          that.activeIndex = matches[matchIndex];
2843

    
2844
          liActive.firstChild.focus();
2845

    
2846
          if (updateScroll) that.$menuInner[0].scrollTop = offset;
2847

    
2848
          $this.trigger('focus');
2849
        }
2850
      }
2851

    
2852
      // Select focused option if "Enter", "Spacebar" or "Tab" (when selectOnTab is true) are pressed inside the menu.
2853
      if (
2854
        isActive &&
2855
        (
2856
          (e.which === keyCodes.SPACE && !that.selectpicker.keydown.keyHistory) ||
2857
          e.which === keyCodes.ENTER ||
2858
          (e.which === keyCodes.TAB && that.options.selectOnTab)
2859
        )
2860
      ) {
2861
        if (e.which !== keyCodes.SPACE) e.preventDefault();
2862

    
2863
        if (!that.options.liveSearch || e.which !== keyCodes.SPACE) {
2864
          that.$menuInner.find('.active a').trigger('click', true); // retain active class
2865
          $this.trigger('focus');
2866

    
2867
          if (!that.options.liveSearch) {
2868
            // Prevent screen from scrolling if the user hits the spacebar
2869
            e.preventDefault();
2870
            // Fixes spacebar selection of dropdown items in FF & IE
2871
            $(document).data('spaceSelect', true);
2872
          }
2873
        }
2874
      }
2875
    },
2876

    
2877
    mobile: function () {
2878
      this.$element[0].classList.add('mobile-device');
2879
    },
2880

    
2881
    refresh: function () {
2882
      // update options if data attributes have been changed
2883
      var config = $.extend({}, this.options, this.$element.data());
2884
      this.options = config;
2885

    
2886
      this.checkDisabled();
2887
      this.setStyle();
2888
      this.render();
2889
      this.createLi();
2890
      this.setWidth();
2891

    
2892
      this.setSize(true);
2893

    
2894
      this.$element.trigger('refreshed' + EVENT_KEY);
2895
    },
2896

    
2897
    hide: function () {
2898
      this.$newElement.hide();
2899
    },
2900

    
2901
    show: function () {
2902
      this.$newElement.show();
2903
    },
2904

    
2905
    remove: function () {
2906
      this.$newElement.remove();
2907
      this.$element.remove();
2908
    },
2909

    
2910
    destroy: function () {
2911
      this.$newElement.before(this.$element).remove();
2912

    
2913
      if (this.$bsContainer) {
2914
        this.$bsContainer.remove();
2915
      } else {
2916
        this.$menu.remove();
2917
      }
2918

    
2919
      this.$element
2920
        .off(EVENT_KEY)
2921
        .removeData('selectpicker')
2922
        .removeClass('bs-select-hidden selectpicker');
2923

    
2924
      $(window).off(EVENT_KEY + '.' + this.selectId);
2925
    }
2926
  };
2927

    
2928
  // SELECTPICKER PLUGIN DEFINITION
2929
  // ==============================
2930
  function Plugin (option) {
2931
    // get the args of the outer function..
2932
    var args = arguments;
2933
    // The arguments of the function are explicitly re-defined from the argument list, because the shift causes them
2934
    // to get lost/corrupted in android 2.3 and IE9 #715 #775
2935
    var _option = option;
2936

    
2937
    [].shift.apply(args);
2938

    
2939
    // if the version was not set successfully
2940
    if (!version.success) {
2941
      // try to retreive it again
2942
      try {
2943
        version.full = ($.fn.dropdown.Constructor.VERSION || '').split(' ')[0].split('.');
2944
      } catch (err) {
2945
        // fall back to use BootstrapVersion if set
2946
        if (Selectpicker.BootstrapVersion) {
2947
          version.full = Selectpicker.BootstrapVersion.split(' ')[0].split('.');
2948
        } else {
2949
          version.full = [version.major, '0', '0'];
2950

    
2951
          console.warn(
2952
            'There was an issue retrieving Bootstrap\'s version. ' +
2953
            'Ensure Bootstrap is being loaded before bootstrap-select and there is no namespace collision. ' +
2954
            'If loading Bootstrap asynchronously, the version may need to be manually specified via $.fn.selectpicker.Constructor.BootstrapVersion.',
2955
            err
2956
          );
2957
        }
2958
      }
2959

    
2960
      version.major = version.full[0];
2961
      version.success = true;
2962
    }
2963

    
2964
    if (version.major === '4') {
2965
      // some defaults need to be changed if using Bootstrap 4
2966
      // check to see if they have already been manually changed before forcing them to update
2967
      var toUpdate = [];
2968

    
2969
      if (Selectpicker.DEFAULTS.style === classNames.BUTTONCLASS) toUpdate.push({ name: 'style', className: 'BUTTONCLASS' });
2970
      if (Selectpicker.DEFAULTS.iconBase === classNames.ICONBASE) toUpdate.push({ name: 'iconBase', className: 'ICONBASE' });
2971
      if (Selectpicker.DEFAULTS.tickIcon === classNames.TICKICON) toUpdate.push({ name: 'tickIcon', className: 'TICKICON' });
2972

    
2973
      classNames.DIVIDER = 'dropdown-divider';
2974
      classNames.SHOW = 'show';
2975
      classNames.BUTTONCLASS = 'btn-light';
2976
      classNames.POPOVERHEADER = 'popover-header';
2977
      classNames.ICONBASE = '';
2978
      classNames.TICKICON = 'bs-ok-default';
2979

    
2980
      for (var i = 0; i < toUpdate.length; i++) {
2981
        var option = toUpdate[i];
2982
        Selectpicker.DEFAULTS[option.name] = classNames[option.className];
2983
      }
2984
    }
2985

    
2986
    var value;
2987
    var chain = this.each(function () {
2988
      var $this = $(this);
2989
      if ($this.is('select')) {
2990
        var data = $this.data('selectpicker'),
2991
            options = typeof _option == 'object' && _option;
2992

    
2993
        if (!data) {
2994
          var dataAttributes = $this.data();
2995

    
2996
          for (var dataAttr in dataAttributes) {
2997
            if (dataAttributes.hasOwnProperty(dataAttr) && $.inArray(dataAttr, DISALLOWED_ATTRIBUTES) !== -1) {
2998
              delete dataAttributes[dataAttr];
2999
            }
3000
          }
3001

    
3002
          var config = $.extend({}, Selectpicker.DEFAULTS, $.fn.selectpicker.defaults || {}, dataAttributes, options);
3003
          config.template = $.extend({}, Selectpicker.DEFAULTS.template, ($.fn.selectpicker.defaults ? $.fn.selectpicker.defaults.template : {}), dataAttributes.template, options.template);
3004
          $this.data('selectpicker', (data = new Selectpicker(this, config)));
3005
        } else if (options) {
3006
          for (var i in options) {
3007
            if (options.hasOwnProperty(i)) {
3008
              data.options[i] = options[i];
3009
            }
3010
          }
3011
        }
3012

    
3013
        if (typeof _option == 'string') {
3014
          if (data[_option] instanceof Function) {
3015
            value = data[_option].apply(data, args);
3016
          } else {
3017
            value = data.options[_option];
3018
          }
3019
        }
3020
      }
3021
    });
3022

    
3023
    if (typeof value !== 'undefined') {
3024
      // noinspection JSUnusedAssignment
3025
      return value;
3026
    } else {
3027
      return chain;
3028
    }
3029
  }
3030

    
3031
  var old = $.fn.selectpicker;
3032
  $.fn.selectpicker = Plugin;
3033
  $.fn.selectpicker.Constructor = Selectpicker;
3034

    
3035
  // SELECTPICKER NO CONFLICT
3036
  // ========================
3037
  $.fn.selectpicker.noConflict = function () {
3038
    $.fn.selectpicker = old;
3039
    return this;
3040
  };
3041

    
3042
  $(document)
3043
    .off('keydown.bs.dropdown.data-api')
3044
    .on('keydown' + EVENT_KEY, '.bootstrap-select [data-toggle="dropdown"], .bootstrap-select [role="listbox"], .bootstrap-select .bs-searchbox input', Selectpicker.prototype.keydown)
3045
    .on('focusin.modal', '.bootstrap-select [data-toggle="dropdown"], .bootstrap-select [role="listbox"], .bootstrap-select .bs-searchbox input', function (e) {
3046
      e.stopPropagation();
3047
    });
3048

    
3049
  // SELECTPICKER DATA-API
3050
  // =====================
3051
  $(window).on('load' + EVENT_KEY + '.data-api', function () {
3052
    $('.selectpicker').each(function () {
3053
      var $selectpicker = $(this);
3054
      Plugin.call($selectpicker, $selectpicker.data());
3055
    })
3056
  });
3057
})(jQuery);
3058

    
3059

    
3060
}));
3061
//# sourceMappingURL=bootstrap-select.js.map
(2-2/15)