internet-programming/lab2/node_modules/bootstrap/js/dist/util/index.js

/*!
  * Bootstrap index.js v5.3.2 (https://getbootstrap.com/)
  * Copyright 2011-2023 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
  typeof define === 'function' && define.amd ? define(['exports'], factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Index = {}));
})(this, (function (exports) { 'use strict';

  /**
   * --------------------------------------------------------------------------
   * Bootstrap util/index.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   * --------------------------------------------------------------------------
   */

  const MAX_UID = 1000000;
  const MILLISECONDS_MULTIPLIER = 1000;
  const TRANSITION_END = 'transitionend';

  /**
   * Properly escape IDs selectors to handle weird IDs
   * @param {string} selector
   * @returns {string}
   */
  const parseSelector = selector => {
    if (selector && window.CSS && window.CSS.escape) {
      // document.querySelector needs escaping to handle IDs (html5+) containing for instance /
      selector = selector.replace(/#([^\s"#']+)/g, (match, id) => `#${CSS.escape(id)}`);
    }
    return selector;
  };

  // Shout-out Angus Croll (https://goo.gl/pxwQGp)
  const toType = object => {
    if (object === null || object === undefined) {
      return `${object}`;
    }
    return Object.prototype.toString.call(object).match(/\s([a-z]+)/i)[1].toLowerCase();
  };

  /**
   * Public Util API
   */

  const getUID = prefix => {
    do {
      prefix += Math.floor(Math.random() * MAX_UID);
    } while (document.getElementById(prefix));
    return prefix;
  };
  const getTransitionDurationFromElement = element => {
    if (!element) {
      return 0;
    }

    // Get transition-duration of the element
    let {
      transitionDuration,
      transitionDelay
    } = window.getComputedStyle(element);
    const floatTransitionDuration = Number.parseFloat(transitionDuration);
    const floatTransitionDelay = Number.parseFloat(transitionDelay);

    // Return 0 if element or transition duration is not found
    if (!floatTransitionDuration && !floatTransitionDelay) {
      return 0;
    }

    // If multiple durations are defined, take the first
    transitionDuration = transitionDuration.split(',')[0];
    transitionDelay = transitionDelay.split(',')[0];
    return (Number.parseFloat(transitionDuration) + Number.parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER;
  };
  const triggerTransitionEnd = element => {
    element.dispatchEvent(new Event(TRANSITION_END));
  };
  const isElement = object => {
    if (!object || typeof object !== 'object') {
      return false;
    }
    if (typeof object.jquery !== 'undefined') {
      object = object[0];
    }
    return typeof object.nodeType !== 'undefined';
  };
  const getElement = object => {
    // it's a jQuery object or a node element
    if (isElement(object)) {
      return object.jquery ? object[0] : object;
    }
    if (typeof object === 'string' && object.length > 0) {
      return document.querySelector(parseSelector(object));
    }
    return null;
  };
  const isVisible = element => {
    if (!isElement(element) || element.getClientRects().length === 0) {
      return false;
    }
    const elementIsVisible = getComputedStyle(element).getPropertyValue('visibility') === 'visible';
    // Handle `details` element as its content may falsie appear visible when it is closed
    const closedDetails = element.closest('details:not([open])');
    if (!closedDetails) {
      return elementIsVisible;
    }
    if (closedDetails !== element) {
      const summary = element.closest('summary');
      if (summary && summary.parentNode !== closedDetails) {
        return false;
      }
      if (summary === null) {
        return false;
      }
    }
    return elementIsVisible;
  };
  const isDisabled = element => {
    if (!element || element.nodeType !== Node.ELEMENT_NODE) {
      return true;
    }
    if (element.classList.contains('disabled')) {
      return true;
    }
    if (typeof element.disabled !== 'undefined') {
      return element.disabled;
    }
    return element.hasAttribute('disabled') && element.getAttribute('disabled') !== 'false';
  };
  const findShadowRoot = element => {
    if (!document.documentElement.attachShadow) {
      return null;
    }

    // Can find the shadow root otherwise it'll return the document
    if (typeof element.getRootNode === 'function') {
      const root = element.getRootNode();
      return root instanceof ShadowRoot ? root : null;
    }
    if (element instanceof ShadowRoot) {
      return element;
    }

    // when we don't find a shadow root
    if (!element.parentNode) {
      return null;
    }
    return findShadowRoot(element.parentNode);
  };
  const noop = () => {};

  /**
   * Trick to restart an element's animation
   *
   * @param {HTMLElement} element
   * @return void
   *
   * @see https://www.charistheo.io/blog/2021/02/restart-a-css-animation-with-javascript/#restarting-a-css-animation
   */
  const reflow = element => {
    element.offsetHeight; // eslint-disable-line no-unused-expressions
  };

  const getjQuery = () => {
    if (window.jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
      return window.jQuery;
    }
    return null;
  };
  const DOMContentLoadedCallbacks = [];
  const onDOMContentLoaded = callback => {
    if (document.readyState === 'loading') {
      // add listener on the first call when the document is in loading state
      if (!DOMContentLoadedCallbacks.length) {
        document.addEventListener('DOMContentLoaded', () => {
          for (const callback of DOMContentLoadedCallbacks) {
            callback();
          }
        });
      }
      DOMContentLoadedCallbacks.push(callback);
    } else {
      callback();
    }
  };
  const isRTL = () => document.documentElement.dir === 'rtl';
  const defineJQueryPlugin = plugin => {
    onDOMContentLoaded(() => {
      const $ = getjQuery();
      /* istanbul ignore if */
      if ($) {
        const name = plugin.NAME;
        const JQUERY_NO_CONFLICT = $.fn[name];
        $.fn[name] = plugin.jQueryInterface;
        $.fn[name].Constructor = plugin;
        $.fn[name].noConflict = () => {
          $.fn[name] = JQUERY_NO_CONFLICT;
          return plugin.jQueryInterface;
        };
      }
    });
  };
  const execute = (possibleCallback, args = [], defaultValue = possibleCallback) => {
    return typeof possibleCallback === 'function' ? possibleCallback(...args) : defaultValue;
  };
  const executeAfterTransition = (callback, transitionElement, waitForTransition = true) => {
    if (!waitForTransition) {
      execute(callback);
      return;
    }
    const durationPadding = 5;
    const emulatedDuration = getTransitionDurationFromElement(transitionElement) + durationPadding;
    let called = false;
    const handler = ({
      target
    }) => {
      if (target !== transitionElement) {
        return;
      }
      called = true;
      transitionElement.removeEventListener(TRANSITION_END, handler);
      execute(callback);
    };
    transitionElement.addEventListener(TRANSITION_END, handler);
    setTimeout(() => {
      if (!called) {
        triggerTransitionEnd(transitionElement);
      }
    }, emulatedDuration);
  };

  /**
   * Return the previous/next element of a list.
   *
   * @param {array} list    The list of elements
   * @param activeElement   The active element
   * @param shouldGetNext   Choose to get next or previous element
   * @param isCycleAllowed
   * @return {Element|elem} The proper element
   */
  const getNextActiveElement = (list, activeElement, shouldGetNext, isCycleAllowed) => {
    const listLength = list.length;
    let index = list.indexOf(activeElement);

    // if the element does not exist in the list return an element
    // depending on the direction and if cycle is allowed
    if (index === -1) {
      return !shouldGetNext && isCycleAllowed ? list[listLength - 1] : list[0];
    }
    index += shouldGetNext ? 1 : -1;
    if (isCycleAllowed) {
      index = (index + listLength) % listLength;
    }
    return list[Math.max(0, Math.min(index, listLength - 1))];
  };

  exports.defineJQueryPlugin = defineJQueryPlugin;
  exports.execute = execute;
  exports.executeAfterTransition = executeAfterTransition;
  exports.findShadowRoot = findShadowRoot;
  exports.getElement = getElement;
  exports.getNextActiveElement = getNextActiveElement;
  exports.getTransitionDurationFromElement = getTransitionDurationFromElement;
  exports.getUID = getUID;
  exports.getjQuery = getjQuery;
  exports.isDisabled = isDisabled;
  exports.isElement = isElement;
  exports.isRTL = isRTL;
  exports.isVisible = isVisible;
  exports.noop = noop;
  exports.onDOMContentLoaded = onDOMContentLoaded;
  exports.parseSelector = parseSelector;
  exports.reflow = reflow;
  exports.toType = toType;
  exports.triggerTransitionEnd = triggerTransitionEnd;

  Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });

}));
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