GPQAPP

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/*!
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 * bsStepper v1.7.0 (https://github.com/Johann-S/bs-stepper)
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 * Copyright 2018 - 2019 Johann-S <johann.servoire@gmail.com>
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 * Licensed under MIT (https://github.com/Johann-S/bs-stepper/blob/master/LICENSE)
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 */
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(function (global, factory) {
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  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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  typeof define === 'function' && define.amd ? define(factory) :
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  (global = global || self, global.Stepper = factory());
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}(this, function () { 'use strict';
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  function _extends() {
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    _extends = Object.assign || function (target) {
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      for (var i = 1; i < arguments.length; i++) {
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        var source = arguments[i];
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        for (var key in source) {
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          if (Object.prototype.hasOwnProperty.call(source, key)) {
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            target[key] = source[key];
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          }
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        }
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      }
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      return target;
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    };
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    return _extends.apply(this, arguments);
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  }
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  var matches = window.Element.prototype.matches;
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  var closest = function closest(element, selector) {
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    return element.closest(selector);
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  };
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  var WinEvent = function WinEvent(inType, params) {
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    return new window.Event(inType, params);
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  };
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  var createCustomEvent = function createCustomEvent(eventName, params) {
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    var cEvent = new window.CustomEvent(eventName, params);
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    return cEvent;
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  };
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  /* istanbul ignore next */
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  function polyfill() {
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    if (!window.Element.prototype.matches) {
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      matches = window.Element.prototype.msMatchesSelector || window.Element.prototype.webkitMatchesSelector;
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    }
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    if (!window.Element.prototype.closest) {
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      closest = function closest(element, selector) {
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        if (!document.documentElement.contains(element)) {
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          return null;
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        }
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        do {
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          if (matches.call(element, selector)) {
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            return element;
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          }
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          element = element.parentElement || element.parentNode;
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        } while (element !== null && element.nodeType === 1);
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        return null;
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      };
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    }
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    if (!window.Event || typeof window.Event !== 'function') {
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      WinEvent = function WinEvent(inType, params) {
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        params = params || {};
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        var e = document.createEvent('Event');
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        e.initEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable));
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        return e;
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      };
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    }
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    if (typeof window.CustomEvent !== 'function') {
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      var originPreventDefault = window.Event.prototype.preventDefault;
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      createCustomEvent = function createCustomEvent(eventName, params) {
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        var evt = document.createEvent('CustomEvent');
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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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        evt.initCustomEvent(eventName, params.bubbles, params.cancelable, params.detail);
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        evt.preventDefault = function () {
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          if (!this.cancelable) {
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            return;
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          }
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          originPreventDefault.call(this);
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          Object.defineProperty(this, 'defaultPrevented', {
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            get: function get() {
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              return true;
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            }
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          });
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        };
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        return evt;
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      };
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    }
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  }
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  polyfill();
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  var MILLISECONDS_MULTIPLIER = 1000;
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  var ClassName = {
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    ACTIVE: 'active',
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    LINEAR: 'linear',
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    BLOCK: 'dstepper-block',
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    NONE: 'dstepper-none',
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    FADE: 'fade',
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    VERTICAL: 'vertical'
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  };
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  var transitionEndEvent = 'transitionend';
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  var customProperty = 'bsStepper';
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  var show = function show(stepperNode, indexStep, options, done) {
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    var stepper = stepperNode[customProperty];
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    if (stepper._steps[indexStep].classList.contains(ClassName.ACTIVE) || stepper._stepsContents[indexStep].classList.contains(ClassName.ACTIVE)) {
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      return;
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    }
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    var showEvent = createCustomEvent('show.bs-stepper', {
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      cancelable: true,
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      detail: {
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        from: stepper._currentIndex,
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        to: indexStep,
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        indexStep: indexStep
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      }
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    });
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    stepperNode.dispatchEvent(showEvent);
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    var activeStep = stepper._steps.filter(function (step) {
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      return step.classList.contains(ClassName.ACTIVE);
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    });
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    var activeContent = stepper._stepsContents.filter(function (content) {
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      return content.classList.contains(ClassName.ACTIVE);
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    });
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    if (showEvent.defaultPrevented) {
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      return;
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    }
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    if (activeStep.length) {
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      activeStep[0].classList.remove(ClassName.ACTIVE);
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    }
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    if (activeContent.length) {
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      activeContent[0].classList.remove(ClassName.ACTIVE);
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      if (!stepperNode.classList.contains(ClassName.VERTICAL) && !stepper.options.animation) {
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        activeContent[0].classList.remove(ClassName.BLOCK);
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      }
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    }
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    showStep(stepperNode, stepper._steps[indexStep], stepper._steps, options);
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    showContent(stepperNode, stepper._stepsContents[indexStep], stepper._stepsContents, activeContent, done);
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  };
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  var showStep = function showStep(stepperNode, step, stepList, options) {
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    stepList.forEach(function (step) {
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      var trigger = step.querySelector(options.selectors.trigger);
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      trigger.setAttribute('aria-selected', 'false'); // if stepper is in linear mode, set disabled attribute on the trigger
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      if (stepperNode.classList.contains(ClassName.LINEAR)) {
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        trigger.setAttribute('disabled', 'disabled');
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      }
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    });
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    step.classList.add(ClassName.ACTIVE);
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    var currentTrigger = step.querySelector(options.selectors.trigger);
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    currentTrigger.setAttribute('aria-selected', 'true'); // if stepper is in linear mode, remove disabled attribute on current
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    if (stepperNode.classList.contains(ClassName.LINEAR)) {
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      currentTrigger.removeAttribute('disabled');
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    }
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  };
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  var showContent = function showContent(stepperNode, content, contentList, activeContent, done) {
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    var stepper = stepperNode[customProperty];
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    var toIndex = contentList.indexOf(content);
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    var shownEvent = createCustomEvent('shown.bs-stepper', {
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      cancelable: true,
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      detail: {
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        from: stepper._currentIndex,
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        to: toIndex,
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        indexStep: toIndex
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      }
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    });
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    function complete() {
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      content.classList.add(ClassName.BLOCK);
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      content.removeEventListener(transitionEndEvent, complete);
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      stepperNode.dispatchEvent(shownEvent);
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      done();
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    }
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    if (content.classList.contains(ClassName.FADE)) {
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      content.classList.remove(ClassName.NONE);
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      var duration = getTransitionDurationFromElement(content);
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      content.addEventListener(transitionEndEvent, complete);
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      if (activeContent.length) {
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        activeContent[0].classList.add(ClassName.NONE);
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      }
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      content.classList.add(ClassName.ACTIVE);
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      emulateTransitionEnd(content, duration);
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    } else {
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      content.classList.add(ClassName.ACTIVE);
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      content.classList.add(ClassName.BLOCK);
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      stepperNode.dispatchEvent(shownEvent);
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      done();
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    }
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  };
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  var getTransitionDurationFromElement = function getTransitionDurationFromElement(element) {
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    if (!element) {
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      return 0;
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    } // Get transition-duration of the element
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    var transitionDuration = window.getComputedStyle(element).transitionDuration;
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    var floatTransitionDuration = parseFloat(transitionDuration); // Return 0 if element or transition duration is not found
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    if (!floatTransitionDuration) {
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      return 0;
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    } // If multiple durations are defined, take the first
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    transitionDuration = transitionDuration.split(',')[0];
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    return parseFloat(transitionDuration) * MILLISECONDS_MULTIPLIER;
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  };
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  var emulateTransitionEnd = function emulateTransitionEnd(element, duration) {
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    var called = false;
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    var durationPadding = 5;
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    var emulatedDuration = duration + durationPadding;
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    function listener() {
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      called = true;
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      element.removeEventListener(transitionEndEvent, listener);
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    }
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    element.addEventListener(transitionEndEvent, listener);
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    window.setTimeout(function () {
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      if (!called) {
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        element.dispatchEvent(WinEvent(transitionEndEvent));
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      }
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      element.removeEventListener(transitionEndEvent, listener);
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    }, emulatedDuration);
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  };
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  var detectAnimation = function detectAnimation(contentList, options) {
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    if (options.animation) {
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      contentList.forEach(function (content) {
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        content.classList.add(ClassName.FADE);
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        content.classList.add(ClassName.NONE);
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      });
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    }
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  };
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  var buildClickStepLinearListener = function buildClickStepLinearListener() {
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    return function clickStepLinearListener(event) {
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      event.preventDefault();
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    };
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  };
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  var buildClickStepNonLinearListener = function buildClickStepNonLinearListener(options) {
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    return function clickStepNonLinearListener(event) {
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      event.preventDefault();
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      var step = closest(event.target, options.selectors.steps);
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      var stepperNode = closest(step, options.selectors.stepper);
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      var stepper = stepperNode[customProperty];
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      var stepIndex = stepper._steps.indexOf(step);
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      show(stepperNode, stepIndex, options, function () {
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        stepper._currentIndex = stepIndex;
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      });
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    };
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  };
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  var DEFAULT_OPTIONS = {
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    linear: true,
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    animation: false,
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    selectors: {
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      steps: '.step',
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      trigger: '.step-trigger',
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      stepper: '.bs-stepper'
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    }
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  };
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  var Stepper =
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  /*#__PURE__*/
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  function () {
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    function Stepper(element, _options) {
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      var _this = this;
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      if (_options === void 0) {
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        _options = {};
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      }
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      this._element = element;
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      this._currentIndex = 0;
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      this._stepsContents = [];
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      this.options = _extends({}, DEFAULT_OPTIONS, {}, _options);
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      this.options.selectors = _extends({}, DEFAULT_OPTIONS.selectors, {}, this.options.selectors);
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      if (this.options.linear) {
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        this._element.classList.add(ClassName.LINEAR);
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      }
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      this._steps = [].slice.call(this._element.querySelectorAll(this.options.selectors.steps));
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      this._steps.filter(function (step) {
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        return step.hasAttribute('data-target');
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      }).forEach(function (step) {
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        _this._stepsContents.push(_this._element.querySelector(step.getAttribute('data-target')));
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      });
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      detectAnimation(this._stepsContents, this.options);
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      this._setLinkListeners();
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      Object.defineProperty(this._element, customProperty, {
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        value: this,
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        writable: true
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      });
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      if (this._steps.length) {
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        show(this._element, this._currentIndex, this.options, function () {});
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      }
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    } // Private
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    var _proto = Stepper.prototype;
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    _proto._setLinkListeners = function _setLinkListeners() {
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      var _this2 = this;
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      this._steps.forEach(function (step) {
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        var trigger = step.querySelector(_this2.options.selectors.trigger);
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        if (_this2.options.linear) {
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          _this2._clickStepLinearListener = buildClickStepLinearListener(_this2.options);
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          trigger.addEventListener('click', _this2._clickStepLinearListener);
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        } else {
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          _this2._clickStepNonLinearListener = buildClickStepNonLinearListener(_this2.options);
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          trigger.addEventListener('click', _this2._clickStepNonLinearListener);
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        }
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      });
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    } // Public
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    ;
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    _proto.next = function next() {
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      var _this3 = this;
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      var nextStep = this._currentIndex + 1 <= this._steps.length - 1 ? this._currentIndex + 1 : this._steps.length - 1;
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      show(this._element, nextStep, this.options, function () {
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        _this3._currentIndex = nextStep;
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      });
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    };
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    _proto.previous = function previous() {
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      var _this4 = this;
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      var previousStep = this._currentIndex - 1 >= 0 ? this._currentIndex - 1 : 0;
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      show(this._element, previousStep, this.options, function () {
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        _this4._currentIndex = previousStep;
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      });
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    };
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    _proto.to = function to(stepNumber) {
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      var _this5 = this;
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      var tempIndex = stepNumber - 1;
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      var nextStep = tempIndex >= 0 && tempIndex < this._steps.length ? tempIndex : 0;
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      show(this._element, nextStep, this.options, function () {
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        _this5._currentIndex = nextStep;
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      });
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    };
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    _proto.reset = function reset() {
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      var _this6 = this;
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      show(this._element, 0, this.options, function () {
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        _this6._currentIndex = 0;
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      });
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    };
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    _proto.destroy = function destroy() {
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      var _this7 = this;
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      this._steps.forEach(function (step) {
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        var trigger = step.querySelector(_this7.options.selectors.trigger);
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        if (_this7.options.linear) {
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          trigger.removeEventListener('click', _this7._clickStepLinearListener);
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        } else {
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          trigger.removeEventListener('click', _this7._clickStepNonLinearListener);
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        }
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      });
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      this._element[customProperty] = undefined;
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      this._element = undefined;
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      this._currentIndex = undefined;
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      this._steps = undefined;
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      this._stepsContents = undefined;
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      this._clickStepLinearListener = undefined;
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      this._clickStepNonLinearListener = undefined;
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    };
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    return Stepper;
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  }();
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  return Stepper;
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}));
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//# sourceMappingURL=bs-stepper.js.map
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