/*! tether-shepherd 1.8.1 */

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(function(root, factory) {

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if (typeof define === 'function' && define.amd) {

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define(["tether"], factory);

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} else if (typeof exports === 'object') {

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module.exports = factory(require('tether'));

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} else {

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root.Shepherd = factory(root.Tether);

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}

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}(this, function(Tether) {

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/* global Tether */

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'use strict';

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var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

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var _get = function get(_x5, _x6, _x7) { var _again = true; _function: while (_again) { var object = _x5, property = _x6, receiver = _x7; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x5 = parent; _x6 = property; _x7 = receiver; _again = true; desc = parent = undefined; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

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function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

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var _Tether$Utils = Tether.Utils;

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var Evented = _Tether$Utils.Evented;

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var addClass = _Tether$Utils.addClass;

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var extend = _Tether$Utils.extend;

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var hasClass = _Tether$Utils.hasClass;

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var removeClass = _Tether$Utils.removeClass;

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var uniqueId = _Tether$Utils.uniqueId;

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var Shepherd = new Evented();

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function isUndefined(obj) {

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return typeof obj === 'undefined';

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};

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function isArray(obj) {

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return obj && obj.constructor === Array;

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};

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function isObject(obj) {

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return obj && obj.constructor === Object;

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};

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function isObjectLoose(obj) {

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return typeof obj === 'object';

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};

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var ATTACHMENT = {

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'top right': 'bottom left',

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'top left': 'bottom right',

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'top center': 'bottom center',

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'middle right': 'middle left',

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'middle left': 'middle right',

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'middle center': 'middle center',

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'bottom left': 'top right',

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'bottom right': 'top left',

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'bottom center': 'top center',

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'top': 'bottom center',

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'left': 'middle right',

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'right': 'middle left',

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'bottom': 'top center',

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'center': 'middle center',

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'middle': 'middle center'

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};

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function createFromHTML(html) {

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var el = document.createElement('div');

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el.innerHTML = html;

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return el.children[0];

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}

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function matchesSelector(el, sel) {

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var matches = undefined;

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if (!isUndefined(el.matches)) {

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matches = el.matches;

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} else if (!isUndefined(el.matchesSelector)) {

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matches = el.matchesSelector;

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} else if (!isUndefined(el.msMatchesSelector)) {

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matches = el.msMatchesSelector;

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} else if (!isUndefined(el.webkitMatchesSelector)) {

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matches = el.webkitMatchesSelector;

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} else if (!isUndefined(el.mozMatchesSelector)) {

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matches = el.mozMatchesSelector;

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} else if (!isUndefined(el.oMatchesSelector)) {

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matches = el.oMatchesSelector;

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}

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return matches.call(el, sel);

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}

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var positionRe = /^(.+) (top|left|right|bottom|center|\[[a-z ]+\])$/;

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function parsePosition(str) {

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if (isObjectLoose(str)) {

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if (str.hasOwnProperty("element") && str.hasOwnProperty("on")) {

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return str;

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}

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return null;

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}

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var matches = positionRe.exec(str);

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if (!matches) {

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return null;

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}

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var on = matches[2];

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if (on[0] === '[') {

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on = on.substring(1, on.length - 1);

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}

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return {

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'element': matches[1],

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'on': on

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};

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}

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function parseShorthand(obj, props) {

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if (obj === null || isUndefined(obj)) {

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return obj;

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} else if (isObjectLoose(obj)) {

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return obj;

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}

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var vals = obj.split(' ');

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var out = {};

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var j = props.length - 1;

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for (var i = vals.length - 1; i >= 0; i--) {

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if (j === 0) {

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out[props[j]] = vals.slice(0, i + 1).join(' ');

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break;

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} else {

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out[props[j]] = vals[i];

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}

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j--;

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}

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return out;

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}

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var Step = (function (_Evented) {

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_inherits(Step, _Evented);

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function Step(tour, options) {

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_classCallCheck(this, Step);

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_get(Object.getPrototypeOf(Step.prototype), 'constructor', this).call(this, tour, options);

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this.tour = tour;

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this.bindMethods();

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this.setOptions(options);

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return this;

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}

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_createClass(Step, [{

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key: 'bindMethods',

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value: function bindMethods() {

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var _this = this;

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var methods = ['_show', 'show', 'hide', 'isOpen', 'cancel', 'complete', 'scrollTo', 'destroy', 'render'];

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methods.map(function (method) {

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_this[method] = _this[method].bind(_this);

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});

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}

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}, {

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key: 'setOptions',

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value: function setOptions() {

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var options = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

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this.options = options;

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this.destroy();

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this.id = this.options.id || this.id || 'step-' + uniqueId();

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var when = this.options.when;

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if (when) {

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for (var _event in when) {

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if (({}).hasOwnProperty.call(when, _event)) {

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var handler = when[_event];

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this.on(_event, handler, this);

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}

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}

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}

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// Button configuration

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var buttonsJson = JSON.stringify(this.options.buttons);

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var buttonsAreDefault = isUndefined(buttonsJson) || buttonsJson === "true";

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var buttonsAreEmpty = buttonsJson === "{}" || buttonsJson === "[]" || buttonsJson === "null" || buttonsJson === "false";

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var buttonsAreArray = !buttonsAreDefault && isArray(this.options.buttons);

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var buttonsAreObject = !buttonsAreDefault && isObject(this.options.buttons);

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// Show default button if undefined or 'true'

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if (buttonsAreDefault) {

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this.options.buttons = [{

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text: 'Next',

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action: this.tour.next,

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classes: 'btn'

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}];

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// Can pass in an object which will assume asingle button

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} else if (!buttonsAreEmpty && buttonsAreObject) {

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this.options.buttons = [this.options.buttons];

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// Falsey/empty values or non-object values prevent buttons from rendering

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} else if (buttonsAreEmpty || !buttonsAreArray) {

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this.options.buttons = false;

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}

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}

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}, {

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key: 'getTour',

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value: function getTour() {

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return this.tour;

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}

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}, {

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key: 'bindAdvance',

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value: function bindAdvance() {

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var _this2 = this;

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// An empty selector matches the step element

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var _parseShorthand = parseShorthand(this.options.advanceOn, ['selector', 'event']);

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var event = _parseShorthand.event;

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var selector = _parseShorthand.selector;

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var handler = function handler(e) {

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if (!_this2.isOpen()) {

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return;

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}

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if (!isUndefined(selector)) {

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if (matchesSelector(e.target, selector)) {

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_this2.tour.next();

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}

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} else {

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if (_this2.el && e.target === _this2.el) {

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_this2.tour.next();

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}

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}

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};

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// TODO: this should also bind/unbind on show/hide

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document.body.addEventListener(event, handler);

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this.on('destroy', function () {

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return document.body.removeEventListener(event, handler);

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});

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}

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}, {

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key: 'getAttachTo',

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value: function getAttachTo() {

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var opts = parsePosition(this.options.attachTo) || {};

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var returnOpts = extend({}, opts);

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if (typeof opts.element === 'string') {

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// Can't override the element in user opts reference because we can't

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// guarantee that the element will exist in the future.

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returnOpts.element = document.querySelector(opts.element);

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if (!returnOpts.element) {

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console.error('The element for this Shepherd step was not found ' + opts.element);

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}

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}

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return returnOpts;

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}

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}, {

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key: 'setupTether',

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value: function setupTether() {

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if (isUndefined(Tether)) {

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throw new Error("Using the attachment feature of Shepherd requires the Tether library");

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}

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var opts = this.getAttachTo();

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var attachment = ATTACHMENT[opts.on] || ATTACHMENT.right;

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if (isUndefined(opts.element)) {

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opts.element = 'viewport';

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attachment = 'middle center';

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}

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var tetherOpts = {

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classPrefix: 'shepherd',

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element: this.el,

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constraints: [{

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to: 'window',

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pin: true,

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attachment: 'together'

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}],

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target: opts.element,

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offset: opts.offset || '0 0',

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attachment: attachment

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};

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if (this.tether) {

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this.tether.destroy();

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}

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this.tether = new Tether(extend(tetherOpts, this.options.tetherOptions));

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}

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}, {

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key: 'show',

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value: function show() {

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var _this3 = this;

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if (!isUndefined(this.options.beforeShowPromise)) {

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var beforeShowPromise = this.options.beforeShowPromise();

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if (!isUndefined(beforeShowPromise)) {

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return beforeShowPromise.then(function () {

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return _this3._show();

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});

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}

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}

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this._show();

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}

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}, {

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key: '_show',

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value: function _show() {

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var _this4 = this;

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this.trigger('before-show');

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if (!this.el) {

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this.render();

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}

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addClass(this.el, 'shepherd-open');

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document.body.setAttribute('data-shepherd-step', this.id);

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this.setupTether();

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if (this.options.scrollTo) {

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setTimeout(function () {

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_this4.scrollTo();

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});

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}

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this.trigger('show');

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}

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}, {

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key: 'hide',

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value: function hide() {

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this.trigger('before-hide');

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removeClass(this.el, 'shepherd-open');

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document.body.removeAttribute('data-shepherd-step');

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if (this.tether) {

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this.tether.destroy();

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}

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this.tether = null;

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this.trigger('hide');

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}

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}, {

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key: 'isOpen',

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value: function isOpen() {

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return this.el && hasClass(this.el, 'shepherd-open');

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}

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}, {

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key: 'cancel',

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value: function cancel() {

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this.tour.cancel();

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this.trigger('cancel');

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}

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}, {

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key: 'complete',

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value: function complete() {

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this.tour.complete();

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this.trigger('complete');

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}

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}, {

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key: 'scrollTo',

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value: function scrollTo() {

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var _getAttachTo = this.getAttachTo();

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var element = _getAttachTo.element;

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if (!isUndefined(this.options.scrollToHandler)) {

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this.options.scrollToHandler(element);

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} else if (!isUndefined(element)) {

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element.scrollIntoView();

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}

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}

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}, {

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key: 'destroy',

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value: function destroy() {

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if (!isUndefined(this.el) && this.el.parentNode) {

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this.el.parentNode.removeChild(this.el);

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delete this.el;

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}

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if (this.tether) {

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this.tether.destroy();

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}

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this.tether = null;

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this.trigger('destroy');

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}

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}, {

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key: 'render',

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value: function render() {

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var _this5 = this;

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if (!isUndefined(this.el)) {

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this.destroy();

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}

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this.el = createFromHTML('<div class=\'shepherd-step ' + (this.options.classes || '') + '\' data-id=\'' + this.id + '\' ' + (this.options.idAttribute ? 'id="' + this.options.idAttribute + '"' : '') + '></div>');

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var content = document.createElement('div');

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content.className = 'shepherd-content';

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this.el.appendChild(content);

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var header = document.createElement('header');

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content.appendChild(header);

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if (this.options.title) {

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header.innerHTML += '<h3 class=\'shepherd-title\'>' + this.options.title + '</h3>';

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this.el.className += ' shepherd-has-title';

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}

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if (this.options.showCancelLink) {

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var link = createFromHTML("<a href class='shepherd-cancel-link'>✕</a>");

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header.appendChild(link);

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this.el.className += ' shepherd-has-cancel-link';

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this.bindCancelLink(link);

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}

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if (!isUndefined(this.options.text)) {

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(function () {

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var text = createFromHTML("<div class='shepherd-text'></div>");

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var paragraphs = _this5.options.text;

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if (typeof paragraphs === 'function') {

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paragraphs = paragraphs.call(_this5, text);

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}

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if (paragraphs instanceof HTMLElement) {

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text.appendChild(paragraphs);

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} else {

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if (typeof paragraphs === 'string') {

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paragraphs = [paragraphs];

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}

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paragraphs.map(function (paragraph) {

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text.innerHTML += '<p>' + paragraph + '</p>';

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});

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}

[454] Fix | Delete

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content.appendChild(text);

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})();

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}

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if (this.options.buttons) {

[460] Fix | Delete

(function () {

[461] Fix | Delete

var footer = document.createElement('footer');

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var buttons = createFromHTML("<ul class='shepherd-buttons'></ul>");

[463] Fix | Delete

[464] Fix | Delete

_this5.options.buttons.map(function (cfg) {

[465] Fix | Delete

var button = createFromHTML('<li><a class=\'shepherd-button ' + (cfg.classes || '') + '\'>' + cfg.text + '</a>');

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buttons.appendChild(button);

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_this5.bindButtonEvents(cfg, button.querySelector('a'));

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});

[469] Fix | Delete

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footer.appendChild(buttons);

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content.appendChild(footer);

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})();

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}

[474] Fix | Delete

[475] Fix | Delete

document.body.appendChild(this.el);

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this.setupTether();

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[479] Fix | Delete

if (this.options.advanceOn) {

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this.bindAdvance();

[481] Fix | Delete

}

[482] Fix | Delete

}

[483] Fix | Delete

}, {

[484] Fix | Delete

key: 'bindCancelLink',

[485] Fix | Delete

value: function bindCancelLink(link) {

[486] Fix | Delete

var _this6 = this;

[487] Fix | Delete

[488] Fix | Delete

link.addEventListener('click', function (e) {

[489] Fix | Delete

e.preventDefault();

[490] Fix | Delete

_this6.cancel();

[491] Fix | Delete

});

[492] Fix | Delete

}

[493] Fix | Delete

}, {

[494] Fix | Delete

key: 'bindButtonEvents',

[495] Fix | Delete

value: function bindButtonEvents(cfg, el) {

[496] Fix | Delete

var _this7 = this;

[497] Fix | Delete

[498] Fix | Delete

cfg.events = cfg.events || {};

[499] Fix | Delete