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polyfill.js 4.92 KiB
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/*!
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  * Bootstrap polyfill.js v4.3.1 (https://getbootstrap.com/)
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  * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
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  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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  */
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(function (global, factory) {
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  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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  typeof define === 'function' && define.amd ? define(['exports'], factory) :
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  (global = global || self, factory(global.Polyfill = {}));
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}(this, (function (exports) { 'use strict';
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  /**
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   * --------------------------------------------------------------------------
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   * Bootstrap (v4.3.1): util/index.js
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   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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   * --------------------------------------------------------------------------
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   */
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  var MAX_UID = 1000000;
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  /**
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   * --------------------------------------------------------------------------
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   * Public Util Api
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   * --------------------------------------------------------------------------
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   */
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  var getUID = function getUID(prefix) {
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    do {
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      prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
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    } while (document.getElementById(prefix));
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    return prefix;
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  };
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  /* istanbul ignore file */
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  var _Element$prototype = Element.prototype;
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      exports.matches = _Element$prototype.matches;
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      exports.closest = _Element$prototype.closest;
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  exports.find = Element.prototype.querySelectorAll;
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  exports.findOne = Element.prototype.querySelector;
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  exports.createCustomEvent = function createCustomEvent(eventName, params) {
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    var cEvent = new CustomEvent(eventName, params);
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    return cEvent;
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  };
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  if (typeof window.CustomEvent !== 'function') {
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    exports.createCustomEvent = function createCustomEvent(eventName, params) {
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      params = params || {
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        bubbles: false,
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        cancelable: false,
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        detail: null
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      };
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      var evt = document.createEvent('CustomEvent');
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      evt.initCustomEvent(eventName, params.bubbles, params.cancelable, params.detail);
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      return evt;
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    };
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  }
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  var workingDefaultPrevented = function () {
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    var e = document.createEvent('CustomEvent');
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    e.initEvent('Bootstrap', true, true);
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    e.preventDefault();
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    return e.defaultPrevented;
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  }();
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  if (!workingDefaultPrevented) {
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    var origPreventDefault = Event.prototype.preventDefault;
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    Event.prototype.preventDefault = function () {
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      if (!this.cancelable) {
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return; } origPreventDefault.call(this); Object.defineProperty(this, 'defaultPrevented', { get: function get() { return true; }, configurable: true }); }; } // MSEdge resets defaultPrevented flag upon dispatchEvent call if at least one listener is attached var defaultPreventedPreservedOnDispatch = function () { var e = exports.createCustomEvent('Bootstrap', { cancelable: true }); var element = document.createElement('div'); element.addEventListener('Bootstrap', function () { return null; }); e.preventDefault(); element.dispatchEvent(e); return e.defaultPrevented; }(); if (!exports.matches) { exports.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector; } if (!exports.closest) { exports.closest = function closest(selector) { var element = this; do { if (exports.matches.call(element, selector)) { return element; } element = element.parentElement || element.parentNode; } while (element !== null && element.nodeType === 1); return null; }; } var scopeSelectorRegex = /:scope\b/; var supportScopeQuery = function () { var element = document.createElement('div'); try { element.querySelectorAll(':scope *'); } catch (_) { return false; } return true; }(); if (!supportScopeQuery) { exports.find = function find(selector) { if (!scopeSelectorRegex.test(selector)) { return this.querySelectorAll(selector); } var hasId = Boolean(this.id); if (!hasId) {
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this.id = getUID('scope'); } var nodeList = null; try { selector = selector.replace(scopeSelectorRegex, "#" + this.id); nodeList = this.querySelectorAll(selector); } finally { if (!hasId) { this.removeAttribute('id'); } } return nodeList; }; exports.findOne = function findOne(selector) { if (!scopeSelectorRegex.test(selector)) { return this.querySelector(selector); } var matches = exports.find.call(this, selector); if (typeof matches[0] !== 'undefined') { return matches[0]; } return null; }; } exports.defaultPreventedPreservedOnDispatch = defaultPreventedPreservedOnDispatch; Object.defineProperty(exports, '__esModule', { value: true }); }))); //# sourceMappingURL=polyfill.js.map