WebRoot/qtimages/lib/wow/wow.js

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/*
* WOW wow.js - v1.3.0 - 2016-10-04
* https://wowjs.uk
* Copyright (c) 2016 Thomas Grainger; Licensed MIT
*/

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(['module', 'exports'], factory);
  } else if (typeof exports !== "undefined") {
    factory(module, exports);
  } else {
    var mod = {
      exports: {}
    };
    factory(mod, mod.exports);
    global.WOW = mod.exports;
  }
})(this, function (module, exports) {
  'use strict';

  Object.defineProperty(exports, "__esModule", {
    value: true
  });

  var _class, _temp;

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

  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;
    };
  }();

  function isIn(needle, haystack) {
    return haystack.indexOf(needle) >= 0;
  }

  function extend(custom, defaults) {
    for (var key in defaults) {
      if (custom[key] == null) {
        var value = defaults[key];
        custom[key] = value;