mirror of
https://github.com/overleaf/overleaf.git
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795 lines
No EOL
26 KiB
JavaScript
795 lines
No EOL
26 KiB
JavaScript
/**
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* Intro.js v0.5.0
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* https://github.com/usablica/intro.js
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* MIT licensed
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*
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* Copyright (C) 2013 usabli.ca - A weekend project by Afshin Mehrabani (@afshinmeh)
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*/
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(function (root, factory) {
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if (typeof exports === 'object') {
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// CommonJS
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factory(exports);
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} else if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['exports'], factory);
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} else {
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// Browser globals
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factory(root);
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}
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} (this, function (exports) {
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//Default config/variables
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var VERSION = '0.5.0';
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/**
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* IntroJs main class
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*
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* @class IntroJs
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*/
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function IntroJs(obj) {
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this._targetElement = obj;
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this._options = {
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/* Next button label in tooltip box */
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nextLabel: 'Next →',
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/* Previous button label in tooltip box */
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prevLabel: '← Back',
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/* Skip button label in tooltip box */
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skipLabel: 'Skip',
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/* Done button label in tooltip box */
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doneLabel: 'Done',
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/* Default tooltip box position */
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tooltipPosition: 'bottom',
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/* Next CSS class for tooltip boxes */
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tooltipClass: '',
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/* Close introduction when pressing Escape button? */
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exitOnEsc: true,
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/* Close introduction when clicking on overlay layer? */
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exitOnOverlayClick: true,
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/* Show step numbers in introduction? */
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showStepNumbers: true
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};
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}
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/**
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* Initiate a new introduction/guide from an element in the page
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*
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* @api private
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* @method _introForElement
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* @param {Object} targetElm
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* @returns {Boolean} Success or not?
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*/
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function _introForElement(targetElm) {
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var introItems = [],
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self = this;
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if (this._options.steps) {
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//use steps passed programmatically
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var allIntroSteps = [];
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for (var i = 0, stepsLength = this._options.steps.length; i < stepsLength; i++) {
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var currentItem = this._options.steps[i];
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//set the step
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currentItem.step = i + 1;
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//use querySelector function only when developer used CSS selector
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if (typeof(currentItem.element) === 'string') {
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//grab the element with given selector from the page
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currentItem.element = document.querySelector(currentItem.element);
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}
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introItems.push(currentItem);
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}
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} else {
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//use steps from data-* annotations
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var allIntroSteps = targetElm.querySelectorAll('*[data-intro]');
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//if there's no element to intro
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if (allIntroSteps.length < 1) {
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return false;
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}
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for (var i = 0, elmsLength = allIntroSteps.length; i < elmsLength; i++) {
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var currentElement = allIntroSteps[i];
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introItems.push({
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element: currentElement,
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intro: currentElement.getAttribute('data-intro'),
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step: parseInt(currentElement.getAttribute('data-step'), 10),
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tooltipClass: currentElement.getAttribute('data-tooltipClass'),
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position: currentElement.getAttribute('data-position') || this._options.tooltipPosition
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});
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}
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}
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//Ok, sort all items with given steps
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introItems.sort(function (a, b) {
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return a.step - b.step;
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});
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//set it to the introJs object
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self._introItems = introItems;
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//add overlay layer to the page
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if(_addOverlayLayer.call(self, targetElm)) {
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//then, start the show
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_nextStep.call(self);
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var skipButton = targetElm.querySelector('.introjs-skipbutton'),
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nextStepButton = targetElm.querySelector('.introjs-nextbutton');
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self._onKeyDown = function(e) {
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if (e.keyCode === 27 && self._options.exitOnEsc == true) {
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//escape key pressed, exit the intro
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_exitIntro.call(self, targetElm);
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//check if any callback is defined
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if (self._introExitCallback != undefined) {
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self._introExitCallback.call(self);
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}
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} else if(e.keyCode === 37) {
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//left arrow
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_previousStep.call(self);
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} else if (e.keyCode === 39 || e.keyCode === 13) {
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//right arrow or enter
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_nextStep.call(self);
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//prevent default behaviour on hitting Enter, to prevent steps being skipped in some browsers
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if(e.preventDefault) {
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e.preventDefault();
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} else {
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e.returnValue = false;
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}
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}
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};
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self._onResize = function(e) {
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_setHelperLayerPosition.call(self, document.querySelector('.introjs-helperLayer'));
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};
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if (window.addEventListener) {
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window.addEventListener('keydown', self._onKeyDown, true);
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//for window resize
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window.addEventListener("resize", self._onResize, true);
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} else if (document.attachEvent) { //IE
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document.attachEvent('onkeydown', self._onKeyDown);
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//for window resize
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document.attachEvent("onresize", self._onResize);
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}
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}
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return false;
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}
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/**
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* Go to specific step of introduction
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*
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* @api private
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* @method _goToStep
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*/
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function _goToStep(step) {
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//because steps starts with zero
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this._currentStep = step - 2;
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if(typeof (this._introItems) !== 'undefined') {
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_nextStep.call(this);
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}
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}
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/**
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* Go to next step on intro
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*
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* @api private
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* @method _nextStep
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*/
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function _nextStep() {
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if (typeof (this._currentStep) === 'undefined') {
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this._currentStep = 0;
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} else {
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++this._currentStep;
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}
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if((this._introItems.length) <= this._currentStep) {
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//end of the intro
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//check if any callback is defined
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if (typeof (this._introCompleteCallback) === 'function') {
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this._introCompleteCallback.call(this);
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}
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_exitIntro.call(this, this._targetElement);
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return;
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}
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var nextStep = this._introItems[this._currentStep];
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if (typeof (this._introBeforeChangeCallback) !== 'undefined') {
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this._introBeforeChangeCallback.call(this, nextStep.element);
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}
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_showElement.call(this, nextStep);
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}
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/**
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* Go to previous step on intro
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*
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* @api private
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* @method _nextStep
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*/
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function _previousStep() {
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if (this._currentStep === 0) {
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return false;
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}
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var nextStep = this._introItems[--this._currentStep];
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if (typeof (this._introBeforeChangeCallback) !== 'undefined') {
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this._introBeforeChangeCallback.call(this, nextStep.element);
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}
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_showElement.call(this, nextStep);
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}
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/**
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* Exit from intro
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*
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* @api private
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* @method _exitIntro
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* @param {Object} targetElement
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*/
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function _exitIntro(targetElement) {
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//remove overlay layer from the page
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var overlayLayer = targetElement.querySelector('.introjs-overlay');
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//for fade-out animation
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overlayLayer.style.opacity = 0;
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setTimeout(function () {
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if (overlayLayer.parentNode) {
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overlayLayer.parentNode.removeChild(overlayLayer);
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}
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}, 500);
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//remove all helper layers
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var helperLayer = targetElement.querySelector('.introjs-helperLayer');
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if (helperLayer) {
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helperLayer.parentNode.removeChild(helperLayer);
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}
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//remove `introjs-showElement` class from the element
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var showElement = document.querySelector('.introjs-showElement');
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if (showElement) {
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showElement.className = showElement.className.replace(/introjs-[a-zA-Z]+/g, '').replace(/^\s+|\s+$/g, ''); // This is a manual trim.
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}
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//remove `introjs-fixParent` class from the elements
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var fixParents = document.querySelectorAll('.introjs-fixParent');
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if (fixParents && fixParents.length > 0) {
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for (var i = fixParents.length - 1; i >= 0; i--) {
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fixParents[i].className = fixParents[i].className.replace(/introjs-fixParent/g, '').replace(/^\s+|\s+$/g, '');
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};
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}
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//clean listeners
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if (window.removeEventListener) {
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window.removeEventListener('keydown', this._onKeyDown, true);
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} else if (document.detachEvent) { //IE
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document.detachEvent('onkeydown', this._onKeyDown);
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}
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//set the step to zero
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this._currentStep = undefined;
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}
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/**
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* Render tooltip box in the page
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*
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* @api private
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* @method _placeTooltip
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* @param {Object} targetElement
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* @param {Object} tooltipLayer
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* @param {Object} arrowLayer
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*/
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function _placeTooltip(targetElement, tooltipLayer, arrowLayer) {
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//reset the old style
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tooltipLayer.style.top = null;
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tooltipLayer.style.right = null;
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tooltipLayer.style.bottom = null;
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tooltipLayer.style.left = null;
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//prevent error when `this._currentStep` is undefined
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if(!this._introItems[this._currentStep]) return;
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var tooltipCssClass = '';
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//if we have a custom css class for each step
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var currentStepObj = this._introItems[this._currentStep];
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if (typeof (currentStepObj.tooltipClass) === 'string') {
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tooltipCssClass = currentStepObj.tooltipClass;
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} else {
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tooltipCssClass = this._options.tooltipClass;
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}
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tooltipLayer.className = ('introjs-tooltip ' + tooltipCssClass).replace(/^\s+|\s+$/g, '');
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//custom css class for tooltip boxes
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var tooltipCssClass = this._options.tooltipClass;
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var currentTooltipPosition = this._introItems[this._currentStep].position;
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switch (currentTooltipPosition) {
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case 'top':
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tooltipLayer.style.left = '15px';
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tooltipLayer.style.top = '-' + (_getOffset(tooltipLayer).height + 10) + 'px';
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arrowLayer.className = 'introjs-arrow bottom';
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break;
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case 'right':
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tooltipLayer.style.left = (_getOffset(targetElement).width + 20) + 'px';
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arrowLayer.className = 'introjs-arrow left';
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break;
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case 'left':
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tooltipLayer.style.top = '15px';
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tooltipLayer.style.right = (_getOffset(targetElement).width + 20) + 'px';
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arrowLayer.className = 'introjs-arrow right';
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break;
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case 'bottom':
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// Bottom going to follow the default behavior
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default:
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tooltipLayer.style.bottom = '-' + (_getOffset(tooltipLayer).height + 10) + 'px';
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arrowLayer.className = 'introjs-arrow top';
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break;
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}
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}
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/**
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* Update the position of the helper layer on the screen
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*
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* @api private
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* @method _setHelperLayerPosition
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* @param {Object} helperLayer
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*/
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function _setHelperLayerPosition(helperLayer) {
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if(helperLayer) {
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//prevent error when `this._currentStep` in undefined
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if(!this._introItems[this._currentStep]) return;
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var elementPosition = _getOffset(this._introItems[this._currentStep].element);
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//set new position to helper layer
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helperLayer.setAttribute('style', 'width: ' + (elementPosition.width + 10) + 'px; ' +
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'height:' + (elementPosition.height + 10) + 'px; ' +
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'top:' + (elementPosition.top - 5) + 'px;' +
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'left: ' + (elementPosition.left - 5) + 'px;');
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}
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}
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/**
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* Show an element on the page
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*
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* @api private
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* @method _showElement
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* @param {Object} targetElement
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*/
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function _showElement(targetElement) {
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if (typeof (this._introChangeCallback) !== 'undefined') {
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this._introChangeCallback.call(this, targetElement.element);
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}
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var self = this,
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oldHelperLayer = document.querySelector('.introjs-helperLayer'),
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elementPosition = _getOffset(targetElement.element);
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if(oldHelperLayer != null) {
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var oldHelperNumberLayer = oldHelperLayer.querySelector('.introjs-helperNumberLayer'),
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oldtooltipLayer = oldHelperLayer.querySelector('.introjs-tooltiptext'),
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oldArrowLayer = oldHelperLayer.querySelector('.introjs-arrow'),
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oldtooltipContainer = oldHelperLayer.querySelector('.introjs-tooltip'),
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skipTooltipButton = oldHelperLayer.querySelector('.introjs-skipbutton'),
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prevTooltipButton = oldHelperLayer.querySelector('.introjs-prevbutton'),
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nextTooltipButton = oldHelperLayer.querySelector('.introjs-nextbutton');
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//hide the tooltip
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oldtooltipContainer.style.opacity = 0;
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//set new position to helper layer
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_setHelperLayerPosition.call(self, oldHelperLayer);
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//remove `introjs-fixParent` class from the elements
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var fixParents = document.querySelectorAll('.introjs-fixParent');
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if (fixParents && fixParents.length > 0) {
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for (var i = fixParents.length - 1; i >= 0; i--) {
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fixParents[i].className = fixParents[i].className.replace(/introjs-fixParent/g, '').replace(/^\s+|\s+$/g, '');
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};
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}
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//remove old classes
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var oldShowElement = document.querySelector('.introjs-showElement');
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oldShowElement.className = oldShowElement.className.replace(/introjs-[a-zA-Z]+/g, '').replace(/^\s+|\s+$/g, '');
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//we should wait until the CSS3 transition is competed (it's 0.3 sec) to prevent incorrect `height` and `width` calculation
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if (self._lastShowElementTimer) {
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clearTimeout(self._lastShowElementTimer);
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}
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self._lastShowElementTimer = setTimeout(function() {
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//set current step to the label
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if(oldHelperNumberLayer != null) {
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oldHelperNumberLayer.innerHTML = targetElement.step;
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}
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//set current tooltip text
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oldtooltipLayer.innerHTML = targetElement.intro;
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//set the tooltip position
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_placeTooltip.call(self, targetElement.element, oldtooltipContainer, oldArrowLayer);
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//show the tooltip
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oldtooltipContainer.style.opacity = 1;
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}, 350);
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} else {
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var helperLayer = document.createElement('div'),
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arrowLayer = document.createElement('div'),
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tooltipLayer = document.createElement('div');
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helperLayer.className = 'introjs-helperLayer';
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//set new position to helper layer
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_setHelperLayerPosition.call(self, helperLayer);
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//add helper layer to target element
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this._targetElement.appendChild(helperLayer);
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arrowLayer.className = 'introjs-arrow';
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tooltipLayer.innerHTML = '<div class="introjs-tooltiptext">' +
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targetElement.intro +
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'</div><div class="introjs-tooltipbuttons"></div>';
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//add helper layer number
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if (this._options.showStepNumbers) {
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var helperNumberLayer = document.createElement('span');
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helperNumberLayer.className = 'introjs-helperNumberLayer';
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helperNumberLayer.innerHTML = targetElement.step;
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helperLayer.appendChild(helperNumberLayer);
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}
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tooltipLayer.appendChild(arrowLayer);
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helperLayer.appendChild(tooltipLayer);
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//next button
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var nextTooltipButton = document.createElement('a');
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nextTooltipButton.onclick = function() {
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if(self._introItems.length - 1 != self._currentStep) {
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_nextStep.call(self);
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}
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};
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nextTooltipButton.href = 'javascript:void(0);';
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nextTooltipButton.innerHTML = this._options.nextLabel;
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//previous button
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var prevTooltipButton = document.createElement('a');
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prevTooltipButton.onclick = function() {
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if(self._currentStep != 0) {
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_previousStep.call(self);
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}
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};
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prevTooltipButton.href = 'javascript:void(0);';
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prevTooltipButton.innerHTML = this._options.prevLabel;
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//skip button
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var skipTooltipButton = document.createElement('a');
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skipTooltipButton.className = 'introjs-button introjs-skipbutton';
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skipTooltipButton.href = 'javascript:void(0);';
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skipTooltipButton.innerHTML = this._options.skipLabel;
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skipTooltipButton.onclick = function() {
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if (self._introItems.length - 1 == self._currentStep && typeof (self._introCompleteCallback) === 'function') {
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self._introCompleteCallback.call(self);
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}
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if (self._introItems.length - 1 != self._currentStep && typeof (self._introExitCallback) === 'function') {
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self._introExitCallback.call(self);
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}
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_exitIntro.call(self, self._targetElement);
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};
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var tooltipButtonsLayer = tooltipLayer.querySelector('.introjs-tooltipbuttons');
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tooltipButtonsLayer.appendChild(skipTooltipButton);
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//in order to prevent displaying next/previous button always
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if (this._introItems.length > 1) {
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tooltipButtonsLayer.appendChild(prevTooltipButton);
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tooltipButtonsLayer.appendChild(nextTooltipButton);
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}
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//set proper position
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_placeTooltip.call(self, targetElement.element, tooltipLayer, arrowLayer);
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}
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if (this._currentStep == 0) {
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prevTooltipButton.className = 'introjs-button introjs-prevbutton introjs-disabled';
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nextTooltipButton.className = 'introjs-button introjs-nextbutton';
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skipTooltipButton.innerHTML = this._options.skipLabel;
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} else if (this._introItems.length - 1 == this._currentStep) {
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skipTooltipButton.innerHTML = this._options.doneLabel;
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prevTooltipButton.className = 'introjs-button introjs-prevbutton';
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nextTooltipButton.className = 'introjs-button introjs-nextbutton introjs-disabled';
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} else {
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prevTooltipButton.className = 'introjs-button introjs-prevbutton';
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nextTooltipButton.className = 'introjs-button introjs-nextbutton';
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skipTooltipButton.innerHTML = this._options.skipLabel;
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}
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//Set focus on "next" button, so that hitting Enter always moves you onto the next step
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nextTooltipButton.focus();
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//add target element position style
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targetElement.element.className += ' introjs-showElement';
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var currentElementPosition = _getPropValue(targetElement.element, 'position');
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if (currentElementPosition !== 'absolute' &&
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currentElementPosition !== 'relative') {
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//change to new intro item
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targetElement.element.className += ' introjs-relativePosition';
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}
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|
var parentElm = targetElement.element.parentNode;
|
|
while(parentElm != null) {
|
|
if(parentElm.tagName.toLowerCase() === 'body') break;
|
|
|
|
var zIndex = _getPropValue(parentElm, 'z-index');
|
|
if(/[0-9]+/.test(zIndex)) {
|
|
parentElm.className += ' introjs-fixParent';
|
|
}
|
|
parentElm = parentElm.parentNode;
|
|
}
|
|
|
|
if (!_elementInViewport(targetElement.element)) {
|
|
var rect = targetElement.element.getBoundingClientRect(),
|
|
top = rect.bottom - (rect.bottom - rect.top),
|
|
bottom = rect.bottom - _getWinSize().height;
|
|
|
|
// Scroll up
|
|
if (top < 0) {
|
|
window.scrollBy(0, top - 30); // 30px padding from edge to look nice
|
|
|
|
// Scroll down
|
|
} else {
|
|
window.scrollBy(0, bottom + 100); // 70px + 30px padding from edge to look nice
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get an element CSS property on the page
|
|
* Thanks to JavaScript Kit: http://www.javascriptkit.com/dhtmltutors/dhtmlcascade4.shtml
|
|
*
|
|
* @api private
|
|
* @method _getPropValue
|
|
* @param {Object} element
|
|
* @param {String} propName
|
|
* @returns Element's property value
|
|
*/
|
|
function _getPropValue (element, propName) {
|
|
var propValue = '';
|
|
if (element.currentStyle) { //IE
|
|
propValue = element.currentStyle[propName];
|
|
} else if (document.defaultView && document.defaultView.getComputedStyle) { //Others
|
|
propValue = document.defaultView.getComputedStyle(element, null).getPropertyValue(propName);
|
|
}
|
|
|
|
//Prevent exception in IE
|
|
if(propValue && propValue.toLowerCase) {
|
|
return propValue.toLowerCase();
|
|
} else {
|
|
return propValue;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Provides a cross-browser way to get the screen dimensions
|
|
* via: http://stackoverflow.com/questions/5864467/internet-explorer-innerheight
|
|
*
|
|
* @api private
|
|
* @method _getWinSize
|
|
* @returns {Object} width and height attributes
|
|
*/
|
|
function _getWinSize() {
|
|
if (window.innerWidth != undefined) {
|
|
return { width: window.innerWidth, height: window.innerHeight };
|
|
} else {
|
|
var D = document.documentElement;
|
|
return { width: D.clientWidth, height: D.clientHeight };
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add overlay layer to the page
|
|
* http://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport
|
|
*
|
|
* @api private
|
|
* @method _elementInViewport
|
|
* @param {Object} el
|
|
*/
|
|
function _elementInViewport(el) {
|
|
var rect = el.getBoundingClientRect();
|
|
|
|
return (
|
|
rect.top >= 0 &&
|
|
rect.left >= 0 &&
|
|
(rect.bottom+80) <= window.innerHeight && // add 80 to get the text right
|
|
rect.right <= window.innerWidth
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Add overlay layer to the page
|
|
*
|
|
* @api private
|
|
* @method _addOverlayLayer
|
|
* @param {Object} targetElm
|
|
*/
|
|
function _addOverlayLayer(targetElm) {
|
|
var overlayLayer = document.createElement('div'),
|
|
styleText = '',
|
|
self = this;
|
|
|
|
//set css class name
|
|
overlayLayer.className = 'introjs-overlay';
|
|
|
|
//check if the target element is body, we should calculate the size of overlay layer in a better way
|
|
if (targetElm.tagName.toLowerCase() === 'body') {
|
|
styleText += 'top: 0;bottom: 0; left: 0;right: 0;position: fixed;';
|
|
overlayLayer.setAttribute('style', styleText);
|
|
} else {
|
|
//set overlay layer position
|
|
var elementPosition = _getOffset(targetElm);
|
|
if(elementPosition) {
|
|
styleText += 'width: ' + elementPosition.width + 'px; height:' + elementPosition.height + 'px; top:' + elementPosition.top + 'px;left: ' + elementPosition.left + 'px;';
|
|
overlayLayer.setAttribute('style', styleText);
|
|
}
|
|
}
|
|
|
|
targetElm.appendChild(overlayLayer);
|
|
|
|
overlayLayer.onclick = function() {
|
|
if(self._options.exitOnOverlayClick == true) {
|
|
_exitIntro.call(self, targetElm);
|
|
}
|
|
//check if any callback is defined
|
|
if (self._introExitCallback != undefined) {
|
|
self._introExitCallback.call(self);
|
|
}
|
|
};
|
|
|
|
setTimeout(function() {
|
|
styleText += 'opacity: .8;';
|
|
overlayLayer.setAttribute('style', styleText);
|
|
}, 10);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get an element position on the page
|
|
* Thanks to `meouw`: http://stackoverflow.com/a/442474/375966
|
|
*
|
|
* @api private
|
|
* @method _getOffset
|
|
* @param {Object} element
|
|
* @returns Element's position info
|
|
*/
|
|
function _getOffset(element) {
|
|
var elementPosition = {};
|
|
|
|
//set width
|
|
elementPosition.width = element.offsetWidth;
|
|
|
|
//set height
|
|
elementPosition.height = element.offsetHeight;
|
|
|
|
//calculate element top and left
|
|
var _x = 0;
|
|
var _y = 0;
|
|
while(element && !isNaN(element.offsetLeft) && !isNaN(element.offsetTop)) {
|
|
_x += element.offsetLeft;
|
|
_y += element.offsetTop;
|
|
element = element.offsetParent;
|
|
}
|
|
//set top
|
|
elementPosition.top = _y;
|
|
//set left
|
|
elementPosition.left = _x;
|
|
|
|
return elementPosition;
|
|
}
|
|
|
|
/**
|
|
* Overwrites obj1's values with obj2's and adds obj2's if non existent in obj1
|
|
* via: http://stackoverflow.com/questions/171251/how-can-i-merge-properties-of-two-javascript-objects-dynamically
|
|
*
|
|
* @param obj1
|
|
* @param obj2
|
|
* @returns obj3 a new object based on obj1 and obj2
|
|
*/
|
|
function _mergeOptions(obj1,obj2) {
|
|
var obj3 = {};
|
|
for (var attrname in obj1) { obj3[attrname] = obj1[attrname]; }
|
|
for (var attrname in obj2) { obj3[attrname] = obj2[attrname]; }
|
|
return obj3;
|
|
}
|
|
|
|
var introJs = function (targetElm) {
|
|
if (typeof (targetElm) === 'object') {
|
|
//Ok, create a new instance
|
|
return new IntroJs(targetElm);
|
|
|
|
} else if (typeof (targetElm) === 'string') {
|
|
//select the target element with query selector
|
|
var targetElement = document.querySelector(targetElm);
|
|
|
|
if (targetElement) {
|
|
return new IntroJs(targetElement);
|
|
} else {
|
|
throw new Error('There is no element with given selector.');
|
|
}
|
|
} else {
|
|
return new IntroJs(document.body);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Current IntroJs version
|
|
*
|
|
* @property version
|
|
* @type String
|
|
*/
|
|
introJs.version = VERSION;
|
|
|
|
//Prototype
|
|
introJs.fn = IntroJs.prototype = {
|
|
clone: function () {
|
|
return new IntroJs(this);
|
|
},
|
|
setOption: function(option, value) {
|
|
this._options[option] = value;
|
|
return this;
|
|
},
|
|
setOptions: function(options) {
|
|
this._options = _mergeOptions(this._options, options);
|
|
return this;
|
|
},
|
|
start: function () {
|
|
_introForElement.call(this, this._targetElement);
|
|
return this;
|
|
},
|
|
goToStep: function(step) {
|
|
_goToStep.call(this, step);
|
|
return this;
|
|
},
|
|
exit: function() {
|
|
_exitIntro.call(this, this._targetElement);
|
|
},
|
|
refresh: function() {
|
|
_setHelperLayerPosition.call(this, document.querySelector('.introjs-helperLayer'));
|
|
return this;
|
|
},
|
|
onbeforechange: function(providedCallback) {
|
|
if (typeof (providedCallback) === 'function') {
|
|
this._introBeforeChangeCallback = providedCallback;
|
|
} else {
|
|
throw new Error('Provided callback for onbeforechange was not a function');
|
|
}
|
|
return this;
|
|
},
|
|
onchange: function(providedCallback) {
|
|
if (typeof (providedCallback) === 'function') {
|
|
this._introChangeCallback = providedCallback;
|
|
} else {
|
|
throw new Error('Provided callback for onchange was not a function.');
|
|
}
|
|
return this;
|
|
},
|
|
oncomplete: function(providedCallback) {
|
|
if (typeof (providedCallback) === 'function') {
|
|
this._introCompleteCallback = providedCallback;
|
|
} else {
|
|
throw new Error('Provided callback for oncomplete was not a function.');
|
|
}
|
|
return this;
|
|
},
|
|
onexit: function(providedCallback) {
|
|
if (typeof (providedCallback) === 'function') {
|
|
this._introExitCallback = providedCallback;
|
|
} else {
|
|
throw new Error('Provided callback for onexit was not a function.');
|
|
}
|
|
return this;
|
|
}
|
|
};
|
|
|
|
exports.introJs = introJs;
|
|
return introJs;
|
|
})); |