// ==UserScript==
// @name         WELearn网课助手
// @namespace    http://tampermonkey.net/
// @description  显示WE Learn随行课堂题目答案；支持班级测试；自动答题；刷时长；开放自定义参数
// @version      0.8.2
// @author       SSmJaE
// @license      GPL-3.0
// @compatible   Chrome
// @match        https://course.sflep.com/*
// @match        https://centercourseware.sflep.com/*
// @run-at       document-end
// @connect      localhost
// @connect      47.97.90.127
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_setClipboard
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @require      https://cdn.jsdelivr.net/npm/vue/dist/vue.js
// ==/UserScript==

/******/ (function(modules) { // webpackBootstrap
/******/ 	// install a JSONP callback for chunk loading
/******/ 	function webpackJsonpCallback(data) {
/******/ 		var chunkIds = data[0];
/******/ 		var moreModules = data[1];
/******/
/******/
/******/ 		// add "moreModules" to the modules object,
/******/ 		// then flag all "chunkIds" as loaded and fire callback
/******/ 		var moduleId, chunkId, i = 0, resolves = [];
/******/ 		for(;i < chunkIds.length; i++) {
/******/ 			chunkId = chunkIds[i];
/******/ 			if(Object.prototype.hasOwnProperty.call(installedChunks, chunkId) && installedChunks[chunkId]) {
/******/ 				resolves.push(installedChunks[chunkId][0]);
/******/ 			}
/******/ 			installedChunks[chunkId] = 0;
/******/ 		}
/******/ 		for(moduleId in moreModules) {
/******/ 			if(Object.prototype.hasOwnProperty.call(moreModules, moduleId)) {
/******/ 				modules[moduleId] = moreModules[moduleId];
/******/ 			}
/******/ 		}
/******/ 		if(parentJsonpFunction) parentJsonpFunction(data);
/******/
/******/ 		while(resolves.length) {
/******/ 			resolves.shift()();
/******/ 		}
/******/
/******/ 	};
/******/
/******/
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// object to store loaded and loading chunks
/******/ 	// undefined = chunk not loaded, null = chunk preloaded/prefetched
/******/ 	// Promise = chunk loading, 0 = chunk loaded
/******/ 	var installedChunks = {
/******/ 		0: 0
/******/ 	};
/******/
/******/
/******/
/******/ 	// script path function
/******/ 	function jsonpScriptSrc(chunkId) {
/******/ 		return __webpack_require__.p + "" + chunkId + ".WElearnHelper0.8.2.js"
/******/ 	}
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/ 	// The chunk loading function for additional chunks
/******/ 	// Since all referenced chunks are already included
/******/ 	// in this file, this function is empty here.
/******/ 	__webpack_require__.e = function requireEnsure() {
/******/ 		return Promise.resolve();
/******/ 	};
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";
/******/
/******/ 	// on error function for async loading
/******/ 	__webpack_require__.oe = function(err) { console.error(err); throw err; };
/******/
/******/ 	var jsonpArray = window["webpackJsonp"] = window["webpackJsonp"] || [];
/******/ 	var oldJsonpFunction = jsonpArray.push.bind(jsonpArray);
/******/ 	jsonpArray.push = webpackJsonpCallback;
/******/ 	jsonpArray = jsonpArray.slice();
/******/ 	for(var i = 0; i < jsonpArray.length; i++) webpackJsonpCallback(jsonpArray[i]);
/******/ 	var parentJsonpFunction = oldJsonpFunction;
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = 32);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "c", function() { return Global; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return BASE_URL; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return DEBUG_MODE; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "e", function() { return VERSION; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "d", function() { return QUERY_INTERVAL; });
var Global = {
  messages: [],
  USER_SETTINGS: {},
  collapse: true,
  showExamQueryButton: false
}; // *--------------------以下为常量

var BASE_URL;
var DEBUG_MODE;

if (false) {} else {
  // BASE_URL = "http://localhost:8000/api/welearn";
  BASE_URL = "http://47.97.90.127/api/welearn";
  DEBUG_MODE = false;
}

var VERSION = "0.8.2";
var QUERY_INTERVAL = 3000; //单位ms

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(20);


/***/ }),
/* 2 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "d", function() { return sleep; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return addMessage; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return makeDraggable; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "c", function() { return requestErrorHandler; });
/* unused harmony export appendToSideBar */
/* harmony import */ var _babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
/* harmony import */ var _babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _babel_runtime_helpers_esm_asyncToGenerator__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(3);
/* harmony import */ var _global__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(0);


function sleep(ms) {
  return new Promise(function (resolve) {
    return setTimeout(resolve, ms);
  });
}

function addMessage(_x) {
  return _addMessage.apply(this, arguments);
}
/**实现拖动*/

function _addMessage() {
  _addMessage = Object(_babel_runtime_helpers_esm_asyncToGenerator__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])( /*#__PURE__*/_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_0___default.a.mark(function _callee(info) {
    var type,
        _args = arguments;
    return _babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_0___default.a.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            type = _args.length > 1 && _args[1] !== undefined ? _args[1] : "normal";

            if (!(type !== "hr")) {
              _context.next = 4;
              break;
            }

            if (!(info === null || info === "")) {
              _context.next = 4;
              break;
            }

            return _context.abrupt("return");

          case 4:
            _global__WEBPACK_IMPORTED_MODULE_2__[/* Global */ "c"].messages.push({
              info: String(info),
              type: type
            });

            if (!_global__WEBPACK_IMPORTED_MODULE_2__[/* Global */ "c"].USER_SETTINGS.autoSlide) {
              _context.next = 9;
              break;
            }

            _context.next = 8;
            return sleep(10);

          case 8:
            //等待message渲染完成，不然不会拉到最底
            document.querySelector("#container-messages").scrollBy(0, 1000);

          case 9:
          case "end":
            return _context.stop();
        }
      }
    }, _callee);
  }));
  return _addMessage.apply(this, arguments);
}

function makeDraggable(handle, container) {
  function getProperty(ele, prop) {
    return parseInt(window.getComputedStyle(ele)[prop]);
  }

  var draggable = false,
      pastX,
      pastY,
      containerWidth,
      containerHeight,
      containerLeft = getProperty(container, "left"),
      containerTop = getProperty(container, "top"),
      windowWidth = window.innerWidth,
      windowHeight = window.innerHeight;
  handle.addEventListener("mousedown", function (e) {
    handle.style.cursor = "grabbing";
    draggable = true;
    pastX = e.clientX;
    pastY = e.clientY;
    containerWidth = getProperty(container, "width");
    containerHeight = getProperty(container, "height");
  }, false);
  document.addEventListener("mousemove", function (e) {
    if (draggable === true) {
      var currentX = e.clientX,
          currentY = e.clientY,
          diffX = currentX - pastX,
          diffY = currentY - pastY;
      var targetX = containerLeft + diffX;
      var targetY = containerTop + diffY;
      if (targetX <= 0) targetX = 0;
      if (targetY <= 0) targetY = 0;
      if (targetX >= windowWidth - containerWidth) targetX = windowWidth - containerWidth;
      if (targetY >= windowHeight - containerHeight) targetY = windowHeight - containerHeight;
      container.style.left = targetX + "px";
      container.style.top = targetY + "px";
    }
  });
  handle.addEventListener("mouseup", function () {
    handle.style.cursor = "grab";
    draggable = false;
    containerLeft = getProperty(container, "left");
    containerTop = getProperty(container, "top");
  }, false); //防止意外未退出拖动状态

  document.body.addEventListener("keydown", function (e) {
    if (e.key === "Escape") {
      // console.log(e);
      handle.style.cursor = "grab";
      draggable = false;
      containerLeft = getProperty(container, "left");
      containerTop = getProperty(container, "top");
    }
  }, false);
}
/** 通过装饰器，实现请求失败时，输出定制化的提示信息 */

function requestErrorHandler() {
  var message = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "请求异常，稍后再试";
  return function (target, propertyKey, descriptor) {
    var originalMethod = descriptor.value;

    descriptor.value = function () {
      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
        args[_key] = arguments[_key];
      }

      var result = originalMethod.apply(this, args);
      result["catch"](function (error) {
        addMessage("".concat(message), "error"); // addMessage(`${error}`, "error");
      });
      return result;
    };

    return descriptor;
  };
}
/**
 * 注册按钮至侧边栏，class应为iconfont class
 */

function appendToSideBar(id, className, name) {
  try {
    if (!document.querySelector("sidebar-button-style")) {
      var buttonStyle = document.createElement("style");
      buttonStyle.id = "sidebar-button-style";
      buttonStyle.setAttribute("type", "text/css");
      buttonStyle.innerHTML = "\n            .courseware_sidebar_2 .sidebar-button {\n                color: white;\n                z-index: 100;\n                font-size: 23px;\n                cursor: pointer;\n                position: relative;\n                left: 15px;\n                top: 5px;\n                text-align: center; \n            }\n\n            .courseware_sidebar_2 .sidebar-button:hover {\n                color: rgb(0,230,227);\n                background: #3b3b3b 100px 100px;\n            }\n            \n            .courseware_sidebar_2 .sidebar-button a { \n                color: #494949; \n                font-size: 14px; \n                line-height: 20px;\n                position: relative;\n                left: -15px;\n            }\n\n            .courseware_sidebar_2 .sidebar-button:hover a {\n                color: #ccc;\n            }\n            ";
      document.body.append(buttonStyle);
    }

    var button = document.createElement("span");
    button.id = "".concat(id);
    button.className = "sidebar-button ".concat(className);
    button.innerHTML = "<a>".concat(name, "</a>");
    document.querySelector(".courseware_sidebar_2 ul.c_s_2 li").appendChild(button);
    return button; //可以跨域添加元素，但是无法跨域操作元素
    // (top.frames[0].document.querySelector(
    //     "container-setting-button",
    // ) as HTMLElement).style.display = "none";
    //todo 还是说，必须要分成两步？不然解释不了为什么上方可以修改style
  } catch (error) {
    console.log(error);
  }
}

/***/ }),
/* 3 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return _asyncToGenerator; });
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
  try {
    var info = gen[key](arg);
    var value = info.value;
  } catch (error) {
    reject(error);
    return;
  }

  if (info.done) {
    resolve(value);
  } else {
    Promise.resolve(value).then(_next, _throw);
  }
}

function _asyncToGenerator(fn) {
  return function () {
    var self = this,
        args = arguments;
    return new Promise(function (resolve, reject) {
      var gen = fn.apply(self, args);

      function _next(value) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
      }

      function _throw(err) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
      }

      _next(undefined);
    });
  };
}

/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/*
  MIT License http://www.opensource.org/licenses/mit-license.php
  Author Tobias Koppers @sokra
*/
// css base code, injected by the css-loader
// eslint-disable-next-line func-names
module.exports = function (useSourceMap) {
  var list = []; // return the list of modules as css string

  list.toString = function toString() {
    return this.map(function (item) {
      var content = cssWithMappingToString(item, useSourceMap);

      if (item[2]) {
        return "@media ".concat(item[2], " {").concat(content, "}");
      }

      return content;
    }).join('');
  }; // import a list of modules into the list
  // eslint-disable-next-line func-names


  list.i = function (modules, mediaQuery, dedupe) {
    if (typeof modules === 'string') {
      // eslint-disable-next-line no-param-reassign
      modules = [[null, modules, '']];
    }

    var alreadyImportedModules = {};

    if (dedupe) {
      for (var i = 0; i < this.length; i++) {
        // eslint-disable-next-line prefer-destructuring
        var id = this[i][0];

        if (id != null) {
          alreadyImportedModules[id] = true;
        }
      }
    }

    for (var _i = 0; _i < modules.length; _i++) {
      var item = [].concat(modules[_i]);

      if (dedupe && alreadyImportedModules[item[0]]) {
        // eslint-disable-next-line no-continue
        continue;
      }

      if (mediaQuery) {
        if (!item[2]) {
          item[2] = mediaQuery;
        } else {
          item[2] = "".concat(mediaQuery, " and ").concat(item[2]);
        }
      }

      list.push(item);
    }
  };

  return list;
};

function cssWithMappingToString(item, useSourceMap) {
  var content = item[1] || ''; // eslint-disable-next-line prefer-destructuring

  var cssMapping = item[3];

  if (!cssMapping) {
    return content;
  }

  if (useSourceMap && typeof btoa === 'function') {
    var sourceMapping = toComment(cssMapping);
    var sourceURLs = cssMapping.sources.map(function (source) {
      return "/*# sourceURL=".concat(cssMapping.sourceRoot || '').concat(source, " */");
    });
    return [content].concat(sourceURLs).concat([sourceMapping]).join('\n');
  }

  return [content].join('\n');
} // Adapted from convert-source-map (MIT)


function toComment(sourceMap) {
  // eslint-disable-next-line no-undef
  var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));
  var data = "sourceMappingURL=data:application/json;charset=utf-8;base64,".concat(base64);
  return "/*# ".concat(data, " */");
}

/***/ }),
/* 5 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return request; });
/* harmony import */ var _babel_runtime_helpers_esm_typeof__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(14);
/* harmony import */ var _src_global__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(0);



function generateFinalUrl(url) {
  return url.startsWith("/") ? _src_global__WEBPACK_IMPORTED_MODULE_1__[/* BASE_URL */ "a"] + url : url;
} //todo promise内部类型应该怎么定义


function request(url) {
  var init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
    method: "GET",
    headers: {},
    body: ""
  };
  var body = Object(_babel_runtime_helpers_esm_typeof__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])(init.body) === "object" ? JSON.stringify(init.body) : init.body;
  return new Promise(function (resolve, reject) {
    GM_xmlhttpRequest({
      url: generateFinalUrl(url),
      method: init.method,
      headers: init.headers,
      data: body,
      timeout: 5000,
      responseType: "json",
      onload: function onload(response) {
        var code = response.status;
        if (code >= 200 && code <= 300) resolve(response);else reject(response);
      },
      onabort: function onabort(response) {
        return reject(response);
      },
      onerror: function onerror(response) {
        return reject(response);
      },
      ontimeout: function ontimeout(response) {
        return reject(response);
      }
    });
  });
} // ['delete', 'get', 'head', 'options', 'post', 'put', 'patch'].forEach(method => {
//     GM_fetch2.prototype[method] = (url: string, init: Init) => {
//         init = { ...init, method: <METHOD>method.toUpperCase() }
//         return GM_fetch.request(url, init)
//     };
// })
//todo onFail，可以自定义提示信息，并提供默认提示信息默认值

/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

/*!
* sweetalert2 v10.0.2
* Released under the MIT License.
*/
(function (global, factory) {
   true ? module.exports = factory() :
  undefined;
}(this, function () { 'use strict';

  function _typeof(obj) {
    "@babel/helpers - typeof";

    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function (obj) {
        return typeof obj;
      };
    } else {
      _typeof = function (obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }

    return _typeof(obj);
  }

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

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _extends() {
    _extends = Object.assign || function (target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];

        for (var key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }

      return target;
    };

    return _extends.apply(this, arguments);
  }

  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }

    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }

  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }

  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };

    return _setPrototypeOf(o, p);
  }

  function _isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;

    try {
      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
      return true;
    } catch (e) {
      return false;
    }
  }

  function _construct(Parent, args, Class) {
    if (_isNativeReflectConstruct()) {
      _construct = Reflect.construct;
    } else {
      _construct = function _construct(Parent, args, Class) {
        var a = [null];
        a.push.apply(a, args);
        var Constructor = Function.bind.apply(Parent, a);
        var instance = new Constructor();
        if (Class) _setPrototypeOf(instance, Class.prototype);
        return instance;
      };
    }

    return _construct.apply(null, arguments);
  }

  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return self;
  }

  function _possibleConstructorReturn(self, call) {
    if (call && (typeof call === "object" || typeof call === "function")) {
      return call;
    }

    return _assertThisInitialized(self);
  }

  function _createSuper(Derived) {
    var hasNativeReflectConstruct = _isNativeReflectConstruct();

    return function _createSuperInternal() {
      var Super = _getPrototypeOf(Derived),
          result;

      if (hasNativeReflectConstruct) {
        var NewTarget = _getPrototypeOf(this).constructor;

        result = Reflect.construct(Super, arguments, NewTarget);
      } else {
        result = Super.apply(this, arguments);
      }

      return _possibleConstructorReturn(this, result);
    };
  }

  function _superPropBase(object, property) {
    while (!Object.prototype.hasOwnProperty.call(object, property)) {
      object = _getPrototypeOf(object);
      if (object === null) break;
    }

    return object;
  }

  function _get(target, property, receiver) {
    if (typeof Reflect !== "undefined" && Reflect.get) {
      _get = Reflect.get;
    } else {
      _get = function _get(target, property, receiver) {
        var base = _superPropBase(target, property);

        if (!base) return;
        var desc = Object.getOwnPropertyDescriptor(base, property);

        if (desc.get) {
          return desc.get.call(receiver);
        }

        return desc.value;
      };
    }

    return _get(target, property, receiver || target);
  }

  var consolePrefix = 'SweetAlert2:';
  /**
   * Filter the unique values into a new array
   * @param arr
   */

  var uniqueArray = function uniqueArray(arr) {
    var result = [];

    for (var i = 0; i < arr.length; i++) {
      if (result.indexOf(arr[i]) === -1) {
        result.push(arr[i]);
      }
    }

    return result;
  };
  /**
   * Capitalize the first letter of a string
   * @param str
   */

  var capitalizeFirstLetter = function capitalizeFirstLetter(str) {
    return str.charAt(0).toUpperCase() + str.slice(1);
  };
  /**
   * Returns the array of object values (Object.values isn't supported in IE11)
   * @param obj
   */

  var objectValues = function objectValues(obj) {
    return Object.keys(obj).map(function (key) {
      return obj[key];
    });
  };
  /**
   * Convert NodeList to Array
   * @param nodeList
   */

  var toArray = function toArray(nodeList) {
    return Array.prototype.slice.call(nodeList);
  };
  /**
   * Standardise console warnings
   * @param message
   */

  var warn = function warn(message) {
    console.warn("".concat(consolePrefix, " ").concat(message));
  };
  /**
   * Standardise console errors
   * @param message
   */

  var error = function error(message) {
    console.error("".concat(consolePrefix, " ").concat(message));
  };
  /**
   * Private global state for `warnOnce`
   * @type {Array}
   * @private
   */

  var previousWarnOnceMessages = [];
  /**
   * Show a console warning, but only if it hasn't already been shown
   * @param message
   */

  var warnOnce = function warnOnce(message) {
    if (!(previousWarnOnceMessages.indexOf(message) !== -1)) {
      previousWarnOnceMessages.push(message);
      warn(message);
    }
  };
  /**
   * Show a one-time console warning about deprecated params/methods
   */

  var warnAboutDepreation = function warnAboutDepreation(deprecatedParam, useInstead) {
    warnOnce("\"".concat(deprecatedParam, "\" is deprecated and will be removed in the next major release. Please use \"").concat(useInstead, "\" instead."));
  };
  /**
   * If `arg` is a function, call it (with no arguments or context) and return the result.
   * Otherwise, just pass the value through
   * @param arg
   */

  var callIfFunction = function callIfFunction(arg) {
    return typeof arg === 'function' ? arg() : arg;
  };
  var hasToPromiseFn = function hasToPromiseFn(arg) {
    return arg && typeof arg.toPromise === 'function';
  };
  var asPromise = function asPromise(arg) {
    return hasToPromiseFn(arg) ? arg.toPromise() : Promise.resolve(arg);
  };
  var isPromise = function isPromise(arg) {
    return arg && Promise.resolve(arg) === arg;
  };

  var DismissReason = Object.freeze({
    cancel: 'cancel',
    backdrop: 'backdrop',
    close: 'close',
    esc: 'esc',
    timer: 'timer'
  });

  var isJqueryElement = function isJqueryElement(elem) {
    return _typeof(elem) === 'object' && elem.jquery;
  };

  var isElement = function isElement(elem) {
    return elem instanceof Element || isJqueryElement(elem);
  };

  var argsToParams = function argsToParams(args) {
    var params = {};

    if (_typeof(args[0]) === 'object' && !isElement(args[0])) {
      _extends(params, args[0]);
    } else {
      ['title', 'html', 'icon'].forEach(function (name, index) {
        var arg = args[index];

        if (typeof arg === 'string' || isElement(arg)) {
          params[name] = arg;
        } else if (arg !== undefined) {
          error("Unexpected type of ".concat(name, "! Expected \"string\" or \"Element\", got ").concat(_typeof(arg)));
        }
      });
    }

    return params;
  };

  var swalPrefix = 'swal2-';
  var prefix = function prefix(items) {
    var result = {};

    for (var i in items) {
      result[items[i]] = swalPrefix + items[i];
    }

    return result;
  };
  var swalClasses = prefix(['container', 'shown', 'height-auto', 'iosfix', 'popup', 'modal', 'no-backdrop', 'no-transition', 'toast', 'toast-shown', 'toast-column', 'show', 'hide', 'close', 'title', 'header', 'content', 'html-container', 'actions', 'confirm', 'deny', 'cancel', 'footer', 'icon', 'icon-content', 'image', 'input', 'file', 'range', 'select', 'radio', 'checkbox', 'label', 'textarea', 'inputerror', 'validation-message', 'progress-steps', 'active-progress-step', 'progress-step', 'progress-step-line', 'loader', 'loading', 'styled', 'top', 'top-start', 'top-end', 'top-left', 'top-right', 'center', 'center-start', 'center-end', 'center-left', 'center-right', 'bottom', 'bottom-start', 'bottom-end', 'bottom-left', 'bottom-right', 'grow-row', 'grow-column', 'grow-fullscreen', 'rtl', 'timer-progress-bar', 'timer-progress-bar-container', 'scrollbar-measure', 'icon-success', 'icon-warning', 'icon-info', 'icon-question', 'icon-error']);
  var iconTypes = prefix(['success', 'warning', 'info', 'question', 'error']);

  var getContainer = function getContainer() {
    return document.body.querySelector(".".concat(swalClasses.container));
  };
  var elementBySelector = function elementBySelector(selectorString) {
    var container = getContainer();
    return container ? container.querySelector(selectorString) : null;
  };

  var elementByClass = function elementByClass(className) {
    return elementBySelector(".".concat(className));
  };

  var getPopup = function getPopup() {
    return elementByClass(swalClasses.popup);
  };
  var getIcons = function getIcons() {
    var popup = getPopup();
    return toArray(popup.querySelectorAll(".".concat(swalClasses.icon)));
  };
  var getIcon = function getIcon() {
    var visibleIcon = getIcons().filter(function (icon) {
      return isVisible(icon);
    });
    return visibleIcon.length ? visibleIcon[0] : null;
  };
  var getTitle = function getTitle() {
    return elementByClass(swalClasses.title);
  };
  var getContent = function getContent() {
    return elementByClass(swalClasses.content);
  };
  var getHtmlContainer = function getHtmlContainer() {
    return elementByClass(swalClasses['html-container']);
  };
  var getImage = function getImage() {
    return elementByClass(swalClasses.image);
  };
  var getProgressSteps = function getProgressSteps() {
    return elementByClass(swalClasses['progress-steps']);
  };
  var getValidationMessage = function getValidationMessage() {
    return elementByClass(swalClasses['validation-message']);
  };
  var getConfirmButton = function getConfirmButton() {
    return elementBySelector(".".concat(swalClasses.actions, " .").concat(swalClasses.confirm));
  };
  var getDenyButton = function getDenyButton() {
    return elementBySelector(".".concat(swalClasses.actions, " .").concat(swalClasses.deny));
  };
  var getLoader = function getLoader() {
    return elementBySelector(".".concat(swalClasses.loader));
  };
  var getCancelButton = function getCancelButton() {
    return elementBySelector(".".concat(swalClasses.actions, " .").concat(swalClasses.cancel));
  };
  var getActions = function getActions() {
    return elementByClass(swalClasses.actions);
  };
  var getHeader = function getHeader() {
    return elementByClass(swalClasses.header);
  };
  var getFooter = function getFooter() {
    return elementByClass(swalClasses.footer);
  };
  var getTimerProgressBar = function getTimerProgressBar() {
    return elementByClass(swalClasses['timer-progress-bar']);
  };
  var getCloseButton = function getCloseButton() {
    return elementByClass(swalClasses.close);
  }; // https://github.com/jkup/focusable/blob/master/index.js

  var focusable = "\n  a[href],\n  area[href],\n  input:not([disabled]),\n  select:not([disabled]),\n  textarea:not([disabled]),\n  button:not([disabled]),\n  iframe,\n  object,\n  embed,\n  [tabindex=\"0\"],\n  [contenteditable],\n  audio[controls],\n  video[controls],\n  summary\n";
  var getFocusableElements = function getFocusableElements() {
    var focusableElementsWithTabindex = toArray(getPopup().querySelectorAll('[tabindex]:not([tabindex="-1"]):not([tabindex="0"])')) // sort according to tabindex
    .sort(function (a, b) {
      a = parseInt(a.getAttribute('tabindex'));
      b = parseInt(b.getAttribute('tabindex'));

      if (a > b) {
        return 1;
      } else if (a < b) {
        return -1;
      }

      return 0;
    });
    var otherFocusableElements = toArray(getPopup().querySelectorAll(focusable)).filter(function (el) {
      return el.getAttribute('tabindex') !== '-1';
    });
    return uniqueArray(focusableElementsWithTabindex.concat(otherFocusableElements)).filter(function (el) {
      return isVisible(el);
    });
  };
  var isModal = function isModal() {
    return !isToast() && !document.body.classList.contains(swalClasses['no-backdrop']);
  };
  var isToast = function isToast() {
    return document.body.classList.contains(swalClasses['toast-shown']);
  };
  var isLoading = function isLoading() {
    return getPopup().hasAttribute('data-loading');
  };

  var states = {
    previousBodyPadding: null
  };
  var setInnerHtml = function setInnerHtml(elem, html) {
    // #1926
    elem.textContent = '';

    if (html) {
      var parser = new DOMParser();
      var parsed = parser.parseFromString(html, "text/html");
      toArray(parsed.querySelector('head').childNodes).forEach(function (child) {
        elem.appendChild(child);
      });
      toArray(parsed.querySelector('body').childNodes).forEach(function (child) {
        elem.appendChild(child);
      });
    }
  };
  var hasClass = function hasClass(elem, className) {
    if (!className) {
      return false;
    }

    var classList = className.split(/\s+/);

    for (var i = 0; i < classList.length; i++) {
      if (!elem.classList.contains(classList[i])) {
        return false;
      }
    }

    return true;
  };

  var removeCustomClasses = function removeCustomClasses(elem, params) {
    toArray(elem.classList).forEach(function (className) {
      if (!(objectValues(swalClasses).indexOf(className) !== -1) && !(objectValues(iconTypes).indexOf(className) !== -1) && !(objectValues(params.showClass).indexOf(className) !== -1)) {
        elem.classList.remove(className);
      }
    });
  };

  var applyCustomClass = function applyCustomClass(elem, params, className) {
    removeCustomClasses(elem, params);

    if (params.customClass && params.customClass[className]) {
      if (typeof params.customClass[className] !== 'string' && !params.customClass[className].forEach) {
        return warn("Invalid type of customClass.".concat(className, "! Expected string or iterable object, got \"").concat(_typeof(params.customClass[className]), "\""));
      }

      addClass(elem, params.customClass[className]);
    }
  };
  function getInput(content, inputType) {
    if (!inputType) {
      return null;
    }

    switch (inputType) {
      case 'select':
      case 'textarea':
      case 'file':
        return getChildByClass(content, swalClasses[inputType]);

      case 'checkbox':
        return content.querySelector(".".concat(swalClasses.checkbox, " input"));

      case 'radio':
        return content.querySelector(".".concat(swalClasses.radio, " input:checked")) || content.querySelector(".".concat(swalClasses.radio, " input:first-child"));

      case 'range':
        return content.querySelector(".".concat(swalClasses.range, " input"));

      default:
        return getChildByClass(content, swalClasses.input);
    }
  }
  var focusInput = function focusInput(input) {
    input.focus(); // place cursor at end of text in text input

    if (input.type !== 'file') {
      // http://stackoverflow.com/a/2345915
      var val = input.value;
      input.value = '';
      input.value = val;
    }
  };
  var toggleClass = function toggleClass(target, classList, condition) {
    if (!target || !classList) {
      return;
    }

    if (typeof classList === 'string') {
      classList = classList.split(/\s+/).filter(Boolean);
    }

    classList.forEach(function (className) {
      if (target.forEach) {
        target.forEach(function (elem) {
          condition ? elem.classList.add(className) : elem.classList.remove(className);
        });
      } else {
        condition ? target.classList.add(className) : target.classList.remove(className);
      }
    });
  };
  var addClass = function addClass(target, classList) {
    toggleClass(target, classList, true);
  };
  var removeClass = function removeClass(target, classList) {
    toggleClass(target, classList, false);
  };
  var getChildByClass = function getChildByClass(elem, className) {
    for (var i = 0; i < elem.childNodes.length; i++) {
      if (hasClass(elem.childNodes[i], className)) {
        return elem.childNodes[i];
      }
    }
  };
  var applyNumericalStyle = function applyNumericalStyle(elem, property, value) {
    if (value || parseInt(value) === 0) {
      elem.style[property] = typeof value === 'number' ? "".concat(value, "px") : value;
    } else {
      elem.style.removeProperty(property);
    }
  };
  var show = function show(elem) {
    var display = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'flex';
    elem.style.opacity = '';
    elem.style.display = display;
  };
  var hide = function hide(elem) {
    elem.style.opacity = '';
    elem.style.display = 'none';
  };
  var toggle = function toggle(elem, condition, display) {
    condition ? show(elem, display) : hide(elem);
  }; // borrowed from jquery $(elem).is(':visible') implementation

  var isVisible = function isVisible(elem) {
    return !!(elem && (elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length));
  };
  /* istanbul ignore next */

  var isScrollable = function isScrollable(elem) {
    return !!(elem.scrollHeight > elem.clientHeight);
  }; // borrowed from https://stackoverflow.com/a/46352119

  var hasCssAnimation = function hasCssAnimation(elem) {
    var style = window.getComputedStyle(elem);
    var animDuration = parseFloat(style.getPropertyValue('animation-duration') || '0');
    var transDuration = parseFloat(style.getPropertyValue('transition-duration') || '0');
    return animDuration > 0 || transDuration > 0;
  };
  var contains = function contains(haystack, needle) {
    if (typeof haystack.contains === 'function') {
      return haystack.contains(needle);
    }
  };
  var animateTimerProgressBar = function animateTimerProgressBar(timer) {
    var reset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
    var timerProgressBar = getTimerProgressBar();

    if (isVisible(timerProgressBar)) {
      if (reset) {
        timerProgressBar.style.transition = 'none';
        timerProgressBar.style.width = '100%';
      }

      setTimeout(function () {
        timerProgressBar.style.transition = "width ".concat(timer / 1000, "s linear");
        timerProgressBar.style.width = '0%';
      }, 10);
    }
  };
  var stopTimerProgressBar = function stopTimerProgressBar() {
    var timerProgressBar = getTimerProgressBar();
    var timerProgressBarWidth = parseInt(window.getComputedStyle(timerProgressBar).width);
    timerProgressBar.style.removeProperty('transition');
    timerProgressBar.style.width = '100%';
    var timerProgressBarFullWidth = parseInt(window.getComputedStyle(timerProgressBar).width);
    var timerProgressBarPercent = parseInt(timerProgressBarWidth / timerProgressBarFullWidth * 100);
    timerProgressBar.style.removeProperty('transition');
    timerProgressBar.style.width = "".concat(timerProgressBarPercent, "%");
  };

  // Detect Node env
  var isNodeEnv = function isNodeEnv() {
    return typeof window === 'undefined' || typeof document === 'undefined';
  };

  var sweetHTML = "\n <div aria-labelledby=\"".concat(swalClasses.title, "\" aria-describedby=\"").concat(swalClasses.content, "\" class=\"").concat(swalClasses.popup, "\" tabindex=\"-1\">\n   <div class=\"").concat(swalClasses.header, "\">\n     <ul class=\"").concat(swalClasses['progress-steps'], "\"></ul>\n     <div class=\"").concat(swalClasses.icon, " ").concat(iconTypes.error, "\"></div>\n     <div class=\"").concat(swalClasses.icon, " ").concat(iconTypes.question, "\"></div>\n     <div class=\"").concat(swalClasses.icon, " ").concat(iconTypes.warning, "\"></div>\n     <div class=\"").concat(swalClasses.icon, " ").concat(iconTypes.info, "\"></div>\n     <div class=\"").concat(swalClasses.icon, " ").concat(iconTypes.success, "\"></div>\n     <img class=\"").concat(swalClasses.image, "\" />\n     <h2 class=\"").concat(swalClasses.title, "\" id=\"").concat(swalClasses.title, "\"></h2>\n     <button type=\"button\" class=\"").concat(swalClasses.close, "\"></button>\n   </div>\n   <div class=\"").concat(swalClasses.content, "\">\n     <div id=\"").concat(swalClasses.content, "\" class=\"").concat(swalClasses['html-container'], "\"></div>\n     <input class=\"").concat(swalClasses.input, "\" />\n     <input type=\"file\" class=\"").concat(swalClasses.file, "\" />\n     <div class=\"").concat(swalClasses.range, "\">\n       <input type=\"range\" />\n       <output></output>\n     </div>\n     <select class=\"").concat(swalClasses.select, "\"></select>\n     <div class=\"").concat(swalClasses.radio, "\"></div>\n     <label for=\"").concat(swalClasses.checkbox, "\" class=\"").concat(swalClasses.checkbox, "\">\n       <input type=\"checkbox\" />\n       <span class=\"").concat(swalClasses.label, "\"></span>\n     </label>\n     <textarea class=\"").concat(swalClasses.textarea, "\"></textarea>\n     <div class=\"").concat(swalClasses['validation-message'], "\" id=\"").concat(swalClasses['validation-message'], "\"></div>\n   </div>\n   <div class=\"").concat(swalClasses.actions, "\">\n     <div class=\"").concat(swalClasses.loader, "\"></div>\n     <button type=\"button\" class=\"").concat(swalClasses.confirm, "\"></button>\n     <button type=\"button\" class=\"").concat(swalClasses.deny, "\"></button>\n     <button type=\"button\" class=\"").concat(swalClasses.cancel, "\"></button>\n   </div>\n   <div class=\"").concat(swalClasses.footer, "\"></div>\n   <div class=\"").concat(swalClasses['timer-progress-bar-container'], "\">\n     <div class=\"").concat(swalClasses['timer-progress-bar'], "\"></div>\n   </div>\n </div>\n").replace(/(^|\n)\s*/g, '');

  var resetOldContainer = function resetOldContainer() {
    var oldContainer = getContainer();

    if (!oldContainer) {
      return false;
    }

    oldContainer.parentNode.removeChild(oldContainer);
    removeClass([document.documentElement, document.body], [swalClasses['no-backdrop'], swalClasses['toast-shown'], swalClasses['has-column']]);
    return true;
  };

  var oldInputVal; // IE11 workaround, see #1109 for details

  var resetValidationMessage = function resetValidationMessage(e) {
    if (Swal.isVisible() && oldInputVal !== e.target.value) {
      Swal.resetValidationMessage();
    }

    oldInputVal = e.target.value;
  };

  var addInputChangeListeners = function addInputChangeListeners() {
    var content = getContent();
    var input = getChildByClass(content, swalClasses.input);
    var file = getChildByClass(content, swalClasses.file);
    var range = content.querySelector(".".concat(swalClasses.range, " input"));
    var rangeOutput = content.querySelector(".".concat(swalClasses.range, " output"));
    var select = getChildByClass(content, swalClasses.select);
    var checkbox = content.querySelector(".".concat(swalClasses.checkbox, " input"));
    var textarea = getChildByClass(content, swalClasses.textarea);
    input.oninput = resetValidationMessage;
    file.onchange = resetValidationMessage;
    select.onchange = resetValidationMessage;
    checkbox.onchange = resetValidationMessage;
    textarea.oninput = resetValidationMessage;

    range.oninput = function (e) {
      resetValidationMessage(e);
      rangeOutput.value = range.value;
    };

    range.onchange = function (e) {
      resetValidationMessage(e);
      range.nextSibling.value = range.value;
    };
  };

  var getTarget = function getTarget(target) {
    return typeof target === 'string' ? document.querySelector(target) : target;
  };

  var setupAccessibility = function setupAccessibility(params) {
    var popup = getPopup();
    popup.setAttribute('role', params.toast ? 'alert' : 'dialog');
    popup.setAttribute('aria-live', params.toast ? 'polite' : 'assertive');

    if (!params.toast) {
      popup.setAttribute('aria-modal', 'true');
    }
  };

  var setupRTL = function setupRTL(targetElement) {
    if (window.getComputedStyle(targetElement).direction === 'rtl') {
      addClass(getContainer(), swalClasses.rtl);
    }
  };
  /*
   * Add modal + backdrop to DOM
   */


  var init = function init(params) {
    // Clean up the old popup container if it exists
    var oldContainerExisted = resetOldContainer();
    /* istanbul ignore if */

    if (isNodeEnv()) {
      error('SweetAlert2 requires document to initialize');
      return;
    }

    var container = document.createElement('div');
    container.className = swalClasses.container;

    if (oldContainerExisted) {
      addClass(container, swalClasses['no-transition']);
    }

    setInnerHtml(container, sweetHTML);
    var targetElement = getTarget(params.target);
    targetElement.appendChild(container);
    setupAccessibility(params);
    setupRTL(targetElement);
    addInputChangeListeners();
  };

  var parseHtmlToContainer = function parseHtmlToContainer(param, target) {
    // DOM element
    if (param instanceof HTMLElement) {
      target.appendChild(param); // Object
    } else if (_typeof(param) === 'object') {
      handleObject(param, target); // Plain string
    } else if (param) {
      setInnerHtml(target, param);
    }
  };

  var handleObject = function handleObject(param, target) {
    // JQuery element(s)
    if (param.jquery) {
      handleJqueryElem(target, param); // For other objects use their string representation
    } else {
      setInnerHtml(target, param.toString());
    }
  };

  var handleJqueryElem = function handleJqueryElem(target, elem) {
    target.textContent = '';

    if (0 in elem) {
      for (var i = 0; (i in elem); i++) {
        target.appendChild(elem[i].cloneNode(true));
      }
    } else {
      target.appendChild(elem.cloneNode(true));
    }
  };

  var animationEndEvent = function () {
    // Prevent run in Node env

    /* istanbul ignore if */
    if (isNodeEnv()) {
      return false;
    }

    var testEl = document.createElement('div');
    var transEndEventNames = {
      WebkitAnimation: 'webkitAnimationEnd',
      OAnimation: 'oAnimationEnd oanimationend',
      animation: 'animationend'
    };

    for (var i in transEndEventNames) {
      if (Object.prototype.hasOwnProperty.call(transEndEventNames, i) && typeof testEl.style[i] !== 'undefined') {
        return transEndEventNames[i];
      }
    }

    return false;
  }();

  // https://github.com/twbs/bootstrap/blob/master/js/src/modal.js

  var measureScrollbar = function measureScrollbar() {
    var scrollDiv = document.createElement('div');
    scrollDiv.className = swalClasses['scrollbar-measure'];
    document.body.appendChild(scrollDiv);
    var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
    document.body.removeChild(scrollDiv);
    return scrollbarWidth;
  };

  var renderActions = function renderActions(instance, params) {
    var actions = getActions();
    var loader = getLoader();
    var confirmButton = getConfirmButton();
    var denyButton = getDenyButton();
    var cancelButton = getCancelButton(); // Actions (buttons) wrapper

    if (!params.showConfirmButton && !params.showDenyButton && !params.showCancelButton) {
      hide(actions);
    } // Custom class


    applyCustomClass(actions, params, 'actions'); // Render buttons

    renderButton(confirmButton, 'confirm', params);
    renderButton(denyButton, 'deny', params);
    renderButton(cancelButton, 'cancel', params); // Loader

    loader.innerHTML = params.loaderHtml;

    if (params.buttonsStyling) {
      handleButtonsStyling(confirmButton, denyButton, cancelButton, params);
    } else {
      removeClass([confirmButton, denyButton, cancelButton], swalClasses.styled);
    }

    if (params.reverseButtons) {
      actions.insertBefore(cancelButton, loader);
      actions.insertBefore(denyButton, loader);
      actions.insertBefore(confirmButton, loader);
    }
  };

  function handleButtonsStyling(confirmButton, denyButton, cancelButton, params) {
    addClass([confirmButton, denyButton, cancelButton], swalClasses.styled); // Buttons background colors

    if (params.confirmButtonColor) {
      confirmButton.style.backgroundColor = params.confirmButtonColor;
    }

    if (params.denyButtonColor) {
      denyButton.style.backgroundColor = params.denyButtonColor;
    }

    if (params.cancelButtonColor) {
      cancelButton.style.backgroundColor = params.cancelButtonColor;
    } // Loading state


    if (!isLoading()) {
      var confirmButtonBackgroundColor = window.getComputedStyle(confirmButton).getPropertyValue('background-color');
      confirmButton.style.borderLeftColor = confirmButtonBackgroundColor;
      confirmButton.style.borderRightColor = confirmButtonBackgroundColor;
    }
  }

  function renderButton(button, buttonType, params) {
    toggle(button, params["show".concat(capitalizeFirstLetter(buttonType), "Button")], 'inline-block');
    setInnerHtml(button, params["".concat(buttonType, "ButtonText")]); // Set caption text

    button.setAttribute('aria-label', params["".concat(buttonType, "ButtonAriaLabel")]); // ARIA label
    // Add buttons custom classes

    button.className = swalClasses[buttonType];
    applyCustomClass(button, params, "".concat(buttonType, "Button"));
    addClass(button, params["".concat(buttonType, "ButtonClass")]);
  }

  function handleBackdropParam(container, backdrop) {
    if (typeof backdrop === 'string') {
      container.style.background = backdrop;
    } else if (!backdrop) {
      addClass([document.documentElement, document.body], swalClasses['no-backdrop']);
    }
  }

  function handlePositionParam(container, position) {
    if (position in swalClasses) {
      addClass(container, swalClasses[position]);
    } else {
      warn('The "position" parameter is not valid, defaulting to "center"');
      addClass(container, swalClasses.center);
    }
  }

  function handleGrowParam(container, grow) {
    if (grow && typeof grow === 'string') {
      var growClass = "grow-".concat(grow);

      if (growClass in swalClasses) {
        addClass(container, swalClasses[growClass]);
      }
    }
  }

  var renderContainer = function renderContainer(instance, params) {
    var container = getContainer();

    if (!container) {
      return;
    }

    handleBackdropParam(container, params.backdrop);

    if (!params.backdrop && params.allowOutsideClick) {
      warn('"allowOutsideClick" parameter requires `backdrop` parameter to be set to `true`');
    }

    handlePositionParam(container, params.position);
    handleGrowParam(container, params.grow); // Custom class

    applyCustomClass(container, params, 'container'); // Set queue step attribute for getQueueStep() method

    var queueStep = document.body.getAttribute('data-swal2-queue-step');

    if (queueStep) {
      container.setAttribute('data-queue-step', queueStep);
      document.body.removeAttribute('data-swal2-queue-step');
    }
  };

  /**
   * This module containts `WeakMap`s for each effectively-"private  property" that a `Swal` has.
   * For example, to set the private property "foo" of `this` to "bar", you can `privateProps.foo.set(this, 'bar')`
   * This is the approach that Babel will probably take to implement private methods/fields
   *   https://github.com/tc39/proposal-private-methods
   *   https://github.com/babel/babel/pull/7555
   * Once we have the changes from that PR in Babel, and our core class fits reasonable in *one module*
   *   then we can use that language feature.
   */
  var privateProps = {
    promise: new WeakMap(),
    innerParams: new WeakMap(),
    domCache: new WeakMap()
  };

  var inputTypes = ['input', 'file', 'range', 'select', 'radio', 'checkbox', 'textarea'];
  var renderInput = function renderInput(instance, params) {
    var content = getContent();
    var innerParams = privateProps.innerParams.get(instance);
    var rerender = !innerParams || params.input !== innerParams.input;
    inputTypes.forEach(function (inputType) {
      var inputClass = swalClasses[inputType];
      var inputContainer = getChildByClass(content, inputClass); // set attributes

      setAttributes(inputType, params.inputAttributes); // set class

      inputContainer.className = inputClass;

      if (rerender) {
        hide(inputContainer);
      }
    });

    if (params.input) {
      if (rerender) {
        showInput(params);
      } // set custom class


      setCustomClass(params);
    }
  };

  var showInput = function showInput(params) {
    if (!renderInputType[params.input]) {
      return error("Unexpected type of input! Expected \"text\", \"email\", \"password\", \"number\", \"tel\", \"select\", \"radio\", \"checkbox\", \"textarea\", \"file\" or \"url\", got \"".concat(params.input, "\""));
    }

    var inputContainer = getInputContainer(params.input);
    var input = renderInputType[params.input](inputContainer, params);
    show(input); // input autofocus

    setTimeout(function () {
      focusInput(input);
    });
  };

  var removeAttributes = function removeAttributes(input) {
    for (var i = 0; i < input.attributes.length; i++) {
      var attrName = input.attributes[i].name;

      if (!(['type', 'value', 'style'].indexOf(attrName) !== -1)) {
        input.removeAttribute(attrName);
      }
    }
  };

  var setAttributes = function setAttributes(inputType, inputAttributes) {
    var input = getInput(getContent(), inputType);

    if (!input) {
      return;
    }

    removeAttributes(input);

    for (var attr in inputAttributes) {
      // Do not set a placeholder for <input type="range">
      // it'll crash Edge, #1298
      if (inputType === 'range' && attr === 'placeholder') {
        continue;
      }

      input.setAttribute(attr, inputAttributes[attr]);
    }
  };

  var setCustomClass = function setCustomClass(params) {
    var inputContainer = getInputContainer(params.input);

    if (params.customClass) {
      addClass(inputContainer, params.customClass.input);
    }
  };

  var setInputPlaceholder = function setInputPlaceholder(input, params) {
    if (!input.placeholder || params.inputPlaceholder) {
      input.placeholder = params.inputPlaceholder;
    }
  };

  var getInputContainer = function getInputContainer(inputType) {
    var inputClass = swalClasses[inputType] ? swalClasses[inputType] : swalClasses.input;
    return getChildByClass(getContent(), inputClass);
  };

  var renderInputType = {};

  renderInputType.text = renderInputType.email = renderInputType.password = renderInputType.number = renderInputType.tel = renderInputType.url = function (input, params) {
    if (typeof params.inputValue === 'string' || typeof params.inputValue === 'number') {
      input.value = params.inputValue;
    } else if (!isPromise(params.inputValue)) {
      warn("Unexpected type of inputValue! Expected \"string\", \"number\" or \"Promise\", got \"".concat(_typeof(params.inputValue), "\""));
    }

    setInputPlaceholder(input, params);
    input.type = params.input;
    return input;
  };

  renderInputType.file = function (input, params) {
    setInputPlaceholder(input, params);
    return input;
  };

  renderInputType.range = function (range, params) {
    var rangeInput = range.querySelector('input');
    var rangeOutput = range.querySelector('output');
    rangeInput.value = params.inputValue;
    rangeInput.type = params.input;
    rangeOutput.value = params.inputValue;
    return range;
  };

  renderInputType.select = function (select, params) {
    select.textContent = '';

    if (params.inputPlaceholder) {
      var placeholder = document.createElement('option');
      setInnerHtml(placeholder, params.inputPlaceholder);
      placeholder.value = '';
      placeholder.disabled = true;
      placeholder.selected = true;
      select.appendChild(placeholder);
    }

    return select;
  };

  renderInputType.radio = function (radio) {
    radio.textContent = '';
    return radio;
  };

  renderInputType.checkbox = function (checkboxContainer, params) {
    var checkbox = getInput(getContent(), 'checkbox');
    checkbox.value = 1;
    checkbox.id = swalClasses.checkbox;
    checkbox.checked = Boolean(params.inputValue);
    var label = checkboxContainer.querySelector('span');
    setInnerHtml(label, params.inputPlaceholder);
    return checkboxContainer;
  };

  renderInputType.textarea = function (textarea, params) {
    textarea.value = params.inputValue;
    setInputPlaceholder(textarea, params);

    if ('MutationObserver' in window) {
      // #1699
      var initialPopupWidth = parseInt(window.getComputedStyle(getPopup()).width);
      var popupPadding = parseInt(window.getComputedStyle(getPopup()).paddingLeft) + parseInt(window.getComputedStyle(getPopup()).paddingRight);

      var outputsize = function outputsize() {
        var contentWidth = textarea.offsetWidth + popupPadding;

        if (contentWidth > initialPopupWidth) {
          getPopup().style.width = "".concat(contentWidth, "px");
        } else {
          getPopup().style.width = null;
        }
      };

      new MutationObserver(outputsize).observe(textarea, {
        attributes: true,
        attributeFilter: ['style']
      });
    }

    return textarea;
  };

  var renderContent = function renderContent(instance, params) {
    var content = getContent().querySelector("#".concat(swalClasses.content)); // Content as HTML

    if (params.html) {
      parseHtmlToContainer(params.html, content);
      show(content, 'block'); // Content as plain text
    } else if (params.text) {
      content.textContent = params.text;
      show(content, 'block'); // No content
    } else {
      hide(content);
    }

    renderInput(instance, params); // Custom class

    applyCustomClass(getContent(), params, 'content');
  };

  var renderFooter = function renderFooter(instance, params) {
    var footer = getFooter();
    toggle(footer, params.footer);

    if (params.footer) {
      parseHtmlToContainer(params.footer, footer);
    } // Custom class


    applyCustomClass(footer, params, 'footer');
  };

  var renderCloseButton = function renderCloseButton(instance, params) {
    var closeButton = getCloseButton();
    setInnerHtml(closeButton, params.closeButtonHtml); // Custom class

    applyCustomClass(closeButton, params, 'closeButton');
    toggle(closeButton, params.showCloseButton);
    closeButton.setAttribute('aria-label', params.closeButtonAriaLabel);
  };

  var renderIcon = function renderIcon(instance, params) {
    var innerParams = privateProps.innerParams.get(instance); // if the give icon already rendered, apply the custom class without re-rendering the icon

    if (innerParams && params.icon === innerParams.icon && getIcon()) {
      applyCustomClass(getIcon(), params, 'icon');
      return;
    }

    hideAllIcons();

    if (!params.icon) {
      return;
    }

    if (Object.keys(iconTypes).indexOf(params.icon) !== -1) {
      var icon = elementBySelector(".".concat(swalClasses.icon, ".").concat(iconTypes[params.icon]));
      show(icon); // Custom or default content

      setContent(icon, params);
      adjustSuccessIconBackgoundColor(); // Custom class

      applyCustomClass(icon, params, 'icon'); // Animate icon

      addClass(icon, params.showClass.icon);
    } else {
      error("Unknown icon! Expected \"success\", \"error\", \"warning\", \"info\" or \"question\", got \"".concat(params.icon, "\""));
    }
  };

  var hideAllIcons = function hideAllIcons() {
    var icons = getIcons();

    for (var i = 0; i < icons.length; i++) {
      hide(icons[i]);
    }
  }; // Adjust success icon background color to match the popup background color


  var adjustSuccessIconBackgoundColor = function adjustSuccessIconBackgoundColor() {
    var popup = getPopup();
    var popupBackgroundColor = window.getComputedStyle(popup).getPropertyValue('background-color');
    var successIconParts = popup.querySelectorAll('[class^=swal2-success-circular-line], .swal2-success-fix');

    for (var i = 0; i < successIconParts.length; i++) {
      successIconParts[i].style.backgroundColor = popupBackgroundColor;
    }
  };

  var setContent = function setContent(icon, params) {
    icon.textContent = '';

    if (params.iconHtml) {
      setInnerHtml(icon, iconContent(params.iconHtml));
    } else if (params.icon === 'success') {
      setInnerHtml(icon, "\n      <div class=\"swal2-success-circular-line-left\"></div>\n      <span class=\"swal2-success-line-tip\"></span> <span class=\"swal2-success-line-long\"></span>\n      <div class=\"swal2-success-ring\"></div> <div class=\"swal2-success-fix\"></div>\n      <div class=\"swal2-success-circular-line-right\"></div>\n    ");
    } else if (params.icon === 'error') {
      setInnerHtml(icon, "\n      <span class=\"swal2-x-mark\">\n        <span class=\"swal2-x-mark-line-left\"></span>\n        <span class=\"swal2-x-mark-line-right\"></span>\n      </span>\n    ");
    } else {
      var defaultIconHtml = {
        question: '?',
        warning: '!',
        info: 'i'
      };