eam-offline-app/static-eam-app/js/cropper.js

/*!
 * Cropper v4.1.0
 * https://fengyuanchen.github.io/cropper
 *
 * Copyright 2014-present Chen Fengyuan
 * Released under the MIT license
 *
 * Date: 2019-10-12T07:43:51.850Z
 */

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('jquery')) :
  typeof define === 'function' && define.amd ? define(['jquery'], factory) :
  (global = global || self, factory(global.jQuery));
}(this, function ($) { 'use strict';

  $ = $ && $.hasOwnProperty('default') ? $['default'] : $;

  function _typeof(obj) {
    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 _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  function ownKeys(object, enumerableOnly) {
    var keys = Object.keys(object);

    if (Object.getOwnPropertySymbols) {
      var symbols = Object.getOwnPropertySymbols(object);
      if (enumerableOnly) symbols = symbols.filter(function (sym) {
        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
      });
      keys.push.apply(keys, symbols);
    }

    return keys;
  }

  function _objectSpread2(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};

      if (i % 2) {
        ownKeys(source, true).forEach(function (key) {
          _defineProperty(target, key, source[key]);
        });
      } else if (Object.getOwnPropertyDescriptors) {
        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
      } else {
        ownKeys(source).forEach(function (key) {
          Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
        });
      }
    }

    return target;
  }

  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
  }

  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) {
      for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

      return arr2;
    }
  }

  function _iterableToArray(iter) {
    if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
  }

  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance");
  }

  var IS_BROWSER = typeof window !== 'undefined' && typeof window.document !== 'undefined';
  var WINDOW = IS_BROWSER ? window : {};
  var IS_TOUCH_DEVICE = IS_BROWSER ? 'ontouchstart' in WINDOW.document.documentElement : false;
  var HAS_POINTER_EVENT = IS_BROWSER ? 'PointerEvent' in WINDOW : false;
  var NAMESPACE = 'cropper'; // Actions

  var ACTION_ALL = 'all';
  var ACTION_CROP = 'crop';
  var ACTION_MOVE = 'move';
  var ACTION_ZOOM = 'zoom';
  var ACTION_EAST = 'e';
  var ACTION_WEST = 'w';
  var ACTION_SOUTH = 's';
  var ACTION_NORTH = 'n';
  var ACTION_NORTH_EAST = 'ne';
  var ACTION_NORTH_WEST = 'nw';
  var ACTION_SOUTH_EAST = 'se';
  var ACTION_SOUTH_WEST = 'sw'; // Classes

  var CLASS_CROP = "".concat(NAMESPACE, "-crop");
  var CLASS_DISABLED = "".concat(NAMESPACE, "-disabled");
  var CLASS_HIDDEN = "".concat(NAMESPACE, "-hidden");
  var CLASS_HIDE = "".concat(NAMESPACE, "-hide");
  var CLASS_INVISIBLE = "".concat(NAMESPACE, "-invisible");
  var CLASS_MODAL = "".concat(NAMESPACE, "-modal");
  var CLASS_MOVE = "".concat(NAMESPACE, "-move"); // Data keys

  var DATA_ACTION = "".concat(NAMESPACE, "Action");
  var DATA_PREVIEW = "".concat(NAMESPACE, "Preview"); // Drag modes

  var DRAG_MODE_CROP = 'crop';
  var DRAG_MODE_MOVE = 'move';
  var DRAG_MODE_NONE = 'none'; // Events

  var EVENT_CROP = 'crop';
  var EVENT_CROP_END = 'cropend';
  var EVENT_CROP_MOVE = 'cropmove';
  var EVENT_CROP_START = 'cropstart';
  var EVENT_DBLCLICK = 'dblclick';
  var EVENT_TOUCH_START = IS_TOUCH_DEVICE ? 'touchstart' : 'mousedown';
  var EVENT_TOUCH_MOVE = IS_TOUCH_DEVICE ? 'touchmove' : 'mousemove';
  var EVENT_TOUCH_END = IS_TOUCH_DEVICE ? 'touchend touchcancel' : 'mouseup';
  var EVENT_POINTER_DOWN = HAS_POINTER_EVENT ? 'pointerdown' : EVENT_TOUCH_START;
  var EVENT_POINTER_MOVE = HAS_POINTER_EVENT ? 'pointermove' : EVENT_TOUCH_MOVE;
  var EVENT_POINTER_UP = HAS_POINTER_EVENT ? 'pointerup pointercancel' : EVENT_TOUCH_END;
  var EVENT_READY = 'ready';
  var EVENT_RESIZE = 'resize';
  var EVENT_WHEEL = 'wheel';
  var EVENT_ZOOM = 'zoom'; // Mime types

  var MIME_TYPE_JPEG = 'image/jpeg'; // RegExps

  var REGEXP_ACTIONS = /^e|w|s|n|se|sw|ne|nw|all|crop|move|zoom$/;
  var REGEXP_DATA_URL = /^data:/;
  var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
  var REGEXP_TAG_NAME = /^img|canvas$/i; // Misc
  // Inspired by the default width and height of a canvas element.

  var MIN_CONTAINER_WIDTH = 200;
  var MIN_CONTAINER_HEIGHT = 100;

  var DEFAULTS = {
    // Define the view mode of the cropper
    viewMode: 1,
    // 0, 1, 2, 3
    // Define the dragging mode of the cropper
    dragMode: DRAG_MODE_MOVE,
    // 'crop', 'move' or 'none'
    // Define the initial aspect ratio of the crop box
    initialAspectRatio: NaN,
    // Define the aspect ratio of the crop box
    aspectRatio: 4/4,
    // An object with the previous cropping result data
    data: null,
    // A selector for adding extra containers to preview
    preview: '',
    // Re-render the cropper when resize the window
    responsive: true,
    // Restore the cropped area after resize the window
    restore: true,
    // Check if the current image is a cross-origin image
    checkCrossOrigin: true,
    // Check the current image's Exif Orientation information
    checkOrientation: true,
    // Show the black modal
    modal: false,
    // Show the dashed lines for guiding
    guides: false,
    // Show the center indicator for guiding
    center: true,
    // Show the white modal to highlight the crop box
    highlight: true,
    // Show the grid background
    background: false,
    // Enable to crop the image automatically when initialize
    autoCrop: true,
    // Define the percentage of automatic cropping area when initializes
    autoCropArea: 0.8,
    // Enable to move the image
    movable: true,
    // Enable to rotate the image
    rotatable: true,
    // Enable to scale the image
    scalable: true,
    // Enable to zoom the image
    zoomable: true,
    // Enable to zoom the image by dragging touch
    zoomOnTouch: true,
    // Enable to zoom the image by wheeling mouse
    zoomOnWheel: true,
    // Define zoom ratio when zoom the image by wheeling mouse
    wheelZoomRatio: 0.1,
    // Enable to move the crop box
    cropBoxMovable: false,
    // Enable to resize the crop box
    cropBoxResizable: false,
    // Toggle drag mode between "crop" and "move" when click twice on the cropper
    toggleDragModeOnDblclick: true,
    // Size limitation
    minCanvasWidth: 0,
    minCanvasHeight: 0,
    minCropBoxWidth: 0,
    minCropBoxHeight: 0,
    minContainerWidth: 200,
    minContainerHeight: 100,
    // Shortcuts of events
    ready: null,
    cropstart: null,
    cropmove: null,
    cropend: null,
    crop: null,
    zoom: null
  };

  var TEMPLATE = '<div class="cropper-container" touch-action="none">' + '<div class="cropper-wrap-box">' + '<div class="cropper-canvas"></div>' + '</div>' + '<div class="cropper-drag-box"></div>' + '<div class="cropper-crop-box">' + '<span class="cropper-view-box"></span>' + '<span class="cropper-dashed dashed-h"></span>' + '<span class="cropper-dashed dashed-v"></span>' + '<span class="cropper-center"></span>' + '<span class="cropper-face"></span>' + '<span class="cropper-line line-e" data-cropper-action="e"></span>' + '<span class="cropper-line line-n" data-cropper-action="n"></span>' + '<span class="cropper-line line-w" data-cropper-action="w"></span>' + '<span class="cropper-line line-s" data-cropper-action="s"></span>' + '<span class="cropper-point point-e" data-cropper-action="e"></span>' + '<span class="cropper-point point-n" data-cropper-action="n"></span>' + '<span class="cropper-point point-w" data-cropper-action="w"></span>' + '<span class="cropper-point point-s" data-cropper-action="s"></span>' + '<span class="cropper-point point-ne" data-cropper-action="ne"></span>' + '<span class="cropper-point point-nw" data-cropper-action="nw"></span>' + '<span class="cropper-point point-sw" data-cropper-action="sw"></span>' + '<span class="cropper-point point-se" data-cropper-action="se"></span>' + '</div>' + '</div>';

  /**
   * Check if the given value is not a number.
   */

  var isNaN = Number.isNaN || WINDOW.isNaN;
  /**
   * Check if the given value is a number.
   * @param {*} value - The value to check.
   * @returns {boolean} Returns `true` if the given value is a number, else `false`.
   */

  function isNumber(value) {
    return typeof value === 'number' && !isNaN(value);
  }
  /**
   * Check if the given value is a positive number.
   * @param {*} value - The value to check.
   * @returns {boolean} Returns `true` if the given value is a positive number, else `false`.
   */

  var isPositiveNumber = function isPositiveNumber(value) {
    return value > 0 && value < Infinity;
  };
  /**
   * Check if the given value is undefined.
   * @param {*} value - The value to check.
   * @returns {boolean} Returns `true` if the given value is undefined, else `false`.
   */

  function isUndefined(value) {
    return typeof value === 'undefined';
  }
  /**
   * Check if the given value is an object.
   * @param {*} value - The value to check.
   * @returns {boolean} Returns `true` if the given value is an object, else `false`.
   */

  function isObject(value) {
    return _typeof(value) === 'object' && value !== null;
  }
  var hasOwnProperty = Object.prototype.hasOwnProperty;
  /**
   * Check if the given value is a plain object.
   * @param {*} value - The value to check.
   * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.
   */

  function isPlainObject(value) {
    if (!isObject(value)) {
      return false;
    }

    try {
      var _constructor = value.constructor;
      var prototype = _constructor.prototype;
      return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
    } catch (error) {
      return false;
    }
  }
  /**
   * Check if the given value is a function.
   * @param {*} value - The value to check.
   * @returns {boolean} Returns `true` if the given value is a function, else `false`.
   */

  function isFunction(value) {
    return typeof value === 'function';
  }
  var slice = Array.prototype.slice;
  /**
   * Convert array-like or iterable object to an array.
   * @param {*} value - The value to convert.
   * @returns {Array} Returns a new array.
   */

  function toArray(value) {
    return Array.from ? Array.from(value) : slice.call(value);
  }
  /**
   * Iterate the given data.
   * @param {*} data - The data to iterate.
   * @param {Function} callback - The process function for each element.
   * @returns {*} The original data.
   */

  function forEach(data, callback) {
    if (data && isFunction(callback)) {
      if (Array.isArray(data) || isNumber(data.length)
      /* array-like */
      ) {
          toArray(data).forEach(function (value, key) {
            callback.call(data, value, key, data);
          });
        } else if (isObject(data)) {
        Object.keys(data).forEach(function (key) {
          callback.call(data, data[key], key, data);
        });
      }
    }

    return data;
  }
  /**
   * Extend the given object.
   * @param {*} target - The target object to extend.
   * @param {*} args - The rest objects for merging to the target object.
   * @returns {Object} The extended object.
   */

  var assign = Object.assign || function assign(target) {
    for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    if (isObject(target) && args.length > 0) {
      args.forEach(function (arg) {
        if (isObject(arg)) {
          Object.keys(arg).forEach(function (key) {
            target[key] = arg[key];
          });
        }
      });
    }

    return target;
  };
  var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/;
  /**
   * Normalize decimal number.
   * Check out {@link http://0.30000000000000004.com/}
   * @param {number} value - The value to normalize.
   * @param {number} [times=100000000000] - The times for normalizing.
   * @returns {number} Returns the normalized number.
   */

  function normalizeDecimalNumber(value) {
    var times = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 100000000000;
    return REGEXP_DECIMALS.test(value) ? Math.round(value * times) / times : value;
  }
  var REGEXP_SUFFIX = /^width|height|left|top|marginLeft|marginTop$/;
  /**
   * Apply styles to the given element.
   * @param {Element} element - The target element.
   * @param {Object} styles - The styles for applying.
   */

  function setStyle(element, styles) {
    var style = element.style;
    forEach(styles, function (value, property) {
      if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
        value = "".concat(value, "px");
      }

      style[property] = value;
    });
  }
  /**
   * Check if the given element has a special class.
   * @param {Element} element - The element to check.
   * @param {string} value - The class to search.
   * @returns {boolean} Returns `true` if the special class was found.
   */

  function hasClass(element, value) {
    return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;
  }
  /**
   * Add classes to the given element.
   * @param {Element} element - The target element.
   * @param {string} value - The classes to be added.
   */

  function addClass(element, value) {
    if (!value) {
      return;
    }

    if (isNumber(element.length)) {
      forEach(element, function (elem) {
        addClass(elem, value);
      });
      return;
    }

    if (element.classList) {
      element.classList.add(value);
      return;
    }

    var className = element.className.trim();

    if (!className) {
      element.className = value;
    } else if (className.indexOf(value) < 0) {
      element.className = "".concat(className, " ").concat(value);
    }
  }
  /**
   * Remove classes from the given element.
   * @param {Element} element - The target element.
   * @param {string} value - The classes to be removed.
   */

  function removeClass(element, value) {
    if (!value) {
      return;
    }

    if (isNumber(element.length)) {
      forEach(element, function (elem) {
        removeClass(elem, value);
      });
      return;
    }

    if (element.classList) {
      element.classList.remove(value);
      return;
    }

    if (element.className.indexOf(value) >= 0) {
      element.className = element.className.replace(value, '');
    }
  }
  /**
   * Add or remove classes from the given element.
   * @param {Element} element - The target element.
   * @param {string} value - The classes to be toggled.
   * @param {boolean} added - Add only.
   */

  function toggleClass(element, value, added) {
    if (!value) {
      return;
    }

    if (isNumber(element.length)) {
      forEach(element, function (elem) {
        toggleClass(elem, value, added);
      });
      return;
    } // IE10-11 doesn't support the second parameter of `classList.toggle`


    if (added) {
      addClass(element, value);
    } else {
      removeClass(element, value);
    }
  }
  var REGEXP_CAMEL_CASE = /([a-z\d])([A-Z])/g;
  /**
   * Transform the given string from camelCase to kebab-case
   * @param {string} value - The value to transform.
   * @returns {string} The transformed value.
   */

  function toParamCase(value) {
    return value.replace(REGEXP_CAMEL_CASE, '$1-$2').toLowerCase();
  }
  /**
   * Get data from the given element.
   * @param {Element} element - The target element.
   * @param {string} name - The data key to get.
   * @returns {string} The data value.
   */

  function getData(element, name) {
    if (isObject(element[name])) {
      return element[name];
    }

    if (element.dataset) {
      return element.dataset[name];
    }

    return element.getAttribute("data-".concat(toParamCase(name)));
  }
  /**
   * Set data to the given element.
   * @param {Element} element - The target element.
   * @param {string} name - The data key to set.
   * @param {string} data - The data value.
   */

  function setData(element, name, data) {
    if (isObject(data)) {
      element[name] = data;
    } else if (element.dataset) {
      element.dataset[name] = data;
    } else {
      element.setAttribute("data-".concat(toParamCase(name)), data);
    }
  }
  /**
   * Remove data from the given element.
   * @param {Element} element - The target element.
   * @param {string} name - The data key to remove.
   */

  function removeData(element, name) {
    if (isObject(element[name])) {
      try {
        delete element[name];
      } catch (error) {
        element[name] = undefined;
      }
    } else if (element.dataset) {
      // #128 Safari not allows to delete dataset property
      try {
        delete element.dataset[name];
      } catch (error) {
        element.dataset[name] = undefined;
      }
    } else {
      element.removeAttribute("data-".concat(toParamCase(name)));
    }
  }
  var REGEXP_SPACES = /\s\s*/;

  var onceSupported = function () {
    var supported = false;

    if (IS_BROWSER) {
      var once = false;

      var listener = function listener() {};

      var options = Object.defineProperty({}, 'once', {
        get: function get() {
          supported = true;
          return once;
        },

        /**
         * This setter can fix a `TypeError` in strict mode
         * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}
         * @param {boolean} value - The value to set
         */
        set: function set(value) {
          once = value;
        }
      });
      WINDOW.addEventListener('test', listener, options);
      WINDOW.removeEventListener('test', listener, options);
    }

    return supported;
  }();
  /**
   * Remove event listener from the target element.
   * @param {Element} element - The event target.
   * @param {string} type - The event type(s).
   * @param {Function} listener - The event listener.
   * @param {Object} options - The event options.
   */


  function removeListener(element, type, listener) {
    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
    var handler = listener;
    type.trim().split(REGEXP_SPACES).forEach(function (event) {
      if (!onceSupported) {
        var listeners = element.listeners;

        if (listeners && listeners[event] && listeners[event][listener]) {
          handler = listeners[event][listener];
          delete listeners[event][listener];

          if (Object.keys(listeners[event]).length === 0) {
            delete listeners[event];
          }

          if (Object.keys(listeners).length === 0) {
            delete element.listeners;
          }
        }
      }

      element.removeEventListener(event, handler, options);
    });
  }
  /**
   * Add event listener to the target element.
   * @param {Element} element - The event target.
   * @param {string} type - The event type(s).
   * @param {Function} listener - The event listener.
   * @param {Object} options - The event options.
   */

  function addListener(element, type, listener) {
    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
    var _handler = listener;
    type.trim().split(REGEXP_SPACES).forEach(function (event) {
      if (options.once && !onceSupported) {
        var _element$listeners = element.listeners,
            listeners = _element$listeners === void 0 ? {} : _element$listeners;

        _handler = function handler() {
          delete listeners[event][listener];
          element.removeEventListener(event, _handler, options);

          for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
            args[_key2] = arguments[_key2];
          }

          listener.apply(element, args);
        };

        if (!listeners[event]) {
          listeners[event] = {};
        }

        if (listeners[event][listener]) {
          element.removeEventListener(event, listeners[event][listener], options);
        }

        listeners[event][listener] = _handler;
        element.listeners = listeners;
      }

      element.addEventListener(event, _handler, options);
    });
  }
  /**
   * Dispatch event on the target element.
   * @param {Element} element - The event target.
   * @param {string} type - The event type(s).
   * @param {Object} data - The additional event data.
   * @returns {boolean} Indicate if the event is default prevented or not.
   */

  function dispatchEvent(element, type, data) {
    var event; // Event and CustomEvent on IE9-11 are global objects, not constructors

    if (isFunction(Event) && isFunction(CustomEvent)) {
      event = new CustomEvent(type, {
        detail: data,
        bubbles: true,
        cancelable: true
      });
    } else {
      event = document.createEvent('CustomEvent');
      event.initCustomEvent(type, true, true, data);
    }

    return element.dispatchEvent(event);
  }
  /**
   * Get the offset base on the document.
   * @param {Element} element - The target element.
   * @returns {Object} The offset data.
   */

  function getOffset(element) {
    var box = element.getBoundingClientRect();
    return {
      left: box.left + (window.pageXOffset - document.documentElement.clientLeft),
      top: box.top + (window.pageYOffset - document.documentElement.clientTop)
    };
  }
  var location = WINDOW.location;
  var REGEXP_ORIGINS = /^(\w+:)\/\/([^:/?#]*):?(\d*)/i;
  /**
   * Check if the given URL is a cross origin URL.
   * @param {string} url - The target URL.
   * @returns {boolean} Returns `true` if the given URL is a cross origin URL, else `false`.
   */

  function isCrossOriginURL(url) {
    var parts = url.match(REGEXP_ORIGINS);
    return parts !== null && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
  }
  /**
   * Add timestamp to the given URL.
   * @param {string} url - The target URL.
   * @returns {string} The result URL.
   */

  function addTimestamp(url) {
    var timestamp = "timestamp=".concat(new Date().getTime());
    return url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp;
  }
  /**
   * Get transforms base on the given object.
   * @param {Object} obj - The target object.
   * @returns {string} A string contains transform values.
   */

  function getTransforms(_ref) {
    var rotate = _ref.rotate,
        scaleX = _ref.scaleX,
        scaleY = _ref.scaleY,
        translateX = _ref.translateX,
        translateY = _ref.translateY;
    var values = [];

    if (isNumber(translateX) && translateX !== 0) {
      values.push("translateX(".concat(translateX, "px)"));
    }

    if (isNumber(translateY) && translateY !== 0) {
      values.push("translateY(".concat(translateY, "px)"));
    } // Rotate should come first before scale to match orientation transform


    if (isNumber(rotate) && rotate !== 0) {
      values.push("rotate(".concat(rotate, "deg)"));
    }

    if (isNumber(scaleX) && scaleX !== 1) {
      values.push("scaleX(".concat(scaleX, ")"));
    }

    if (isNumber(scaleY) && scaleY !== 1) {
      values.push("scaleY(".concat(scaleY, ")"));
    }

    var transform = values.length ? values.join(' ') : 'none';
    return {
      WebkitTransform: transform,
      msTransform: transform,
      transform: transform
    };
  }
  /**
   * Get the max ratio of a group of pointers.
   * @param {string} pointers - The target pointers.
   * @returns {number} The result ratio.
   */

  function getMaxZoomRatio(pointers) {
    var pointers2 = _objectSpread2({}, pointers);

    var ratios = [];
    forEach(pointers, function (pointer, pointerId) {
      delete pointers2[pointerId];
      forEach(pointers2, function (pointer2) {
        var x1 = Math.abs(pointer.startX - pointer2.startX);
        var y1 = Math.abs(pointer.startY - pointer2.startY);
        var x2 = Math.abs(pointer.endX - pointer2.endX);
        var y2 = Math.abs(pointer.endY - pointer2.endY);
        var z1 = Math.sqrt(x1 * x1 + y1 * y1);
        var z2 = Math.sqrt(x2 * x2 + y2 * y2);
        var ratio = (z2 - z1) / z1;
        ratios.push(ratio);
      });
    });
    ratios.sort(function (a, b) {
      return Math.abs(a) < Math.abs(b);
    });
    return ratios[0];
  }
  /**
   * Get a pointer from an event object.
   * @param {Object} event - The target event object.
   * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.
   * @returns {Object} The result pointer contains start and/or end point coordinates.
   */

  function getPointer(_ref2, endOnly) {
    var pageX = _ref2.pageX,
        pageY = _ref2.pageY;
    var end = {
      endX: pageX,
      endY: pageY
    };
    return endOnly ? end : _objectSpread2({
      startX: pageX,
      startY: pageY
    }, end);
  }
  /**
   * Get the center point coordinate of a group of pointers.
   * @param {Object} pointers - The target pointers.
   * @returns {Object} The center point coordinate.
   */

  function getPointersCenter(pointers) {
    var pageX = 0;
    var pageY = 0;
    var count = 0;
    forEach(pointers, function (_ref3) {
      var startX = _ref3.startX,
          startY = _ref3.startY;
      pageX += startX;
      pageY += startY;
      count += 1;
    });
    pageX /= count;
    pageY /= count;
    return {
      pageX: pageX,
      pageY: pageY
    };
  }
  /**
   * Get the max sizes in a rectangle under the given aspect ratio.
   * @param {Object} data - The original sizes.
   * @param {string} [type='contain'] - The adjust type.
   * @returns {Object} The result sizes.
   */

  function getAdjustedSizes(_ref4) // or 'cover'
  {
    var aspectRatio = _ref4.aspectRatio,
        height = _ref4.height,
        width = _ref4.width;
    var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'contain';
    var isValidWidth = isPositiveNumber(width);
    var isValidHeight = isPositiveNumber(height);

    if (isValidWidth && isValidHeight) {
      var adjustedWidth = height * aspectRatio;

      if (type === 'contain' && adjustedWidth > width || type === 'cover' && adjustedWidth < width) {
        height = width / aspectRatio;
      } else {
        width = height * aspectRatio;
      }
    } else if (isValidWidth) {
      height = width / aspectRatio;
    } else if (isValidHeight) {
      width = height * aspectRatio;
    }

    return {
      width: width,
      height: height
    };
  }
  /**
   * Get the new sizes of a rectangle after rotated.
   * @param {Object} data - The original sizes.
   * @returns {Object} The result sizes.
   */

  function getRotatedSizes(_ref5) {
    var width = _ref5.width,
        height = _ref5.height,
        degree = _ref5.degree;
    degree = Math.abs(degree) % 180;

    if (degree === 90) {
      return {
        width: height,
        height: width
      };
    }

    var arc = degree % 90 * Math.PI / 180;
    var sinArc = Math.sin(arc);
    var cosArc = Math.cos(arc);
    var newWidth = width * cosArc + height * sinArc;
    var newHeight = width * sinArc + height * cosArc;
    return degree > 90 ? {
      width: newHeight,
      height: newWidth
    } : {
      width: newWidth,
      height: newHeight
    };
  }
  /**
   * Get a canvas which drew the given image.
   * @param {HTMLImageElement} image - The image for drawing.
   * @param {Object} imageData - The image data.
   * @param {Object} canvasData - The canvas data.
   * @param {Object} options - The options.
   * @returns {HTMLCanvasElement} The result canvas.
   */

  function getSourceCanvas(image, _ref6, _ref7, _ref8) {
    var imageAspectRatio = _ref6.aspectRatio,
        imageNaturalWidth = _ref6.naturalWidth,
        imageNaturalHeight = _ref6.naturalHeight,
        _ref6$rotate = _ref6.rotate,
        rotate = _ref6$rotate === void 0 ? 0 : _ref6$rotate,
        _ref6$scaleX = _ref6.scaleX,
        scaleX = _ref6$scaleX === void 0 ? 1 : _ref6$scaleX,
        _ref6$scaleY = _ref6.scaleY,
        scaleY = _ref6$scaleY === void 0 ? 1 : _ref6$scaleY;
    var aspectRatio = _ref7.aspectRatio,
        naturalWidth = _ref7.naturalWidth,
        naturalHeight = _ref7.naturalHeight;
    var _ref8$fillColor = _ref8.fillColor,
        fillColor = _ref8$fillColor === void 0 ? 'transparent' : _ref8$fillColor,
        _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,
        imageSmoothingEnabled = _ref8$imageSmoothingE === void 0 ? true : _ref8$imageSmoothingE,
        _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,
        imageSmoothingQuality = _ref8$imageSmoothingQ === void 0 ? 'low' : _ref8$imageSmoothingQ,
        _ref8$maxWidth = _ref8.maxWidth,
        maxWidth = _ref8$maxWidth === void 0 ? Infinity : _ref8$maxWidth,
        _ref8$maxHeight = _ref8.maxHeight,
        maxHeight = _ref8$maxHeight === void 0 ? Infinity : _ref8$maxHeight,
        _ref8$minWidth = _ref8.minWidth,
        minWidth = _ref8$minWidth === void 0 ? 0 : _ref8$minWidth,
        _ref8$minHeight = _ref8.minHeight,
        minHeight = _ref8$minHeight === void 0 ? 0 : _ref8$minHeight;
    var canvas = document.createElement('canvas');
    var context = canvas.getContext('2d');
    var maxSizes = getAdjustedSizes({
      aspectRatio: aspectRatio,
      width: maxWidth,
      height: maxHeight
    });
    var minSizes = getAdjustedSizes({
      aspectRatio: aspectRatio,
      width: minWidth,
      height: minHeight
    }, 'cover');
    var width = Math.min(maxSizes.width, Math.max(minSizes.width, naturalWidth));
    var height = Math.min(maxSizes.height, Math.max(minSizes.height, naturalHeight)); // Note: should always use image's natural sizes for drawing as
    // imageData.naturalWidth === canvasData.naturalHeight when rotate % 180 === 90

    var destMaxSizes = getAdjustedSizes({
      aspectRatio: imageAspectRatio,
      width: maxWidth,
      height: maxHeight
    });
    var destMinSizes = getAdjustedSizes({
      aspectRatio: imageAspectRatio,
      width: minWidth,
      height: minHeight
    }, 'cover');
    var destWidth = Math.min(destMaxSizes.width, Math.max(destMinSizes.width, imageNaturalWidth));
    var destHeight = Math.min(destMaxSizes.height, Math.max(destMinSizes.height, imageNaturalHeight));
    var params = [-destWidth / 2, -destHeight / 2, destWidth, destHeight];
    canvas.width = normalizeDecimalNumber(width);
    canvas.height = normalizeDecimalNumber(height);
    context.fillStyle = fillColor;
    context.fillRect(0, 0, width, height);
    context.save();
    context.translate(width / 2, height / 2);
    context.rotate(rotate * Math.PI / 180);
    context.scale(scaleX, scaleY);
    context.imageSmoothingEnabled = imageSmoothingEnabled;
    context.imageSmoothingQuality = imageSmoothingQuality;
    context.drawImage.apply(context, [image].concat(_toConsumableArray(params.map(function (param) {
      return Math.floor(normalizeDecimalNumber(param));
    }))));
    context.restore();
    return canvas;
  }
  var fromCharCode = String.fromCharCode;
  /**
   * Get string from char code in data view.
   * @param {DataView} dataView - The data view for read.
   * @param {number} start - The start index.
   * @param {number} length - The read length.
   * @returns {string} The read result.
   */

  function getStringFromCharCode(dataView, start, length) {
    var str = '';
    length += start;

    for (var i = start; i < length; i += 1) {
      str += fromCharCode(dataView.getUint8(i));
    }

    return str;
  }
  var REGEXP_DATA_URL_HEAD = /^data:.*,/;
  /**
   * Transform Data URL to array buffer.
   * @param {string} dataURL - The Data URL to transform.
   * @returns {ArrayBuffer} The result array buffer.
   */

  function dataURLToArrayBuffer(dataURL) {
    var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
    var binary = atob(base64);
    var arrayBuffer = new ArrayBuffer(binary.length);
    var uint8 = new Uint8Array(arrayBuffer);
    forEach(uint8, function (value, i) {
      uint8[i] = binary.charCodeAt(i);
    });
    return arrayBuffer;
  }
  /**
   * Transform array buffer to Data URL.
   * @param {ArrayBuffer} arrayBuffer - The array buffer to transform.
   * @param {string} mimeType - The mime type of the Data URL.
   * @returns {string} The result Data URL.
   */

  function arrayBufferToDataURL(arrayBuffer, mimeType) {
    var chunks = []; // Chunk Typed Array for better performance (#435)

    var chunkSize = 8192;
    var uint8 = new Uint8Array(arrayBuffer);

    while (uint8.length > 0) {
      // XXX: Babel's `toConsumableArray` helper will throw error in IE or Safari 9
      // eslint-disable-next-line prefer-spread
      chunks.push(fromCharCode.apply(null, toArray(uint8.subarray(0, chunkSize))));
      uint8 = uint8.subarray(chunkSize);
    }

    return "data:".concat(mimeType, ";base64,").concat(btoa(chunks.join('')));
  }
  /**
   * Get orientation value from given array buffer.
   * @param {ArrayBuffer} arrayBuffer - The array buffer to read.
   * @returns {number} The read orientation value.
   */

  function resetAndGetOrientation(arrayBuffer) {
    var dataView = new DataView(arrayBuffer);
    var orientation; // Ignores range error when the image does not have correct Exif information

    try {
      var littleEndian;
      var app1Start;
      var ifdStart; // Only handle JPEG image (start by 0xFFD8)

      if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
        var length = dataView.byteLength;
        var offset = 2;

        while (offset + 1 < length) {
          if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
            app1Start = offset;
            break;
          }

          offset += 1;
        }
      }

      if (app1Start) {
        var exifIDCode = app1Start + 4;
        var tiffOffset = app1Start + 10;

        if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
          var endianness = dataView.getUint16(tiffOffset);
          littleEndian = endianness === 0x4949;

          if (littleEndian || endianness === 0x4D4D
          /* bigEndian */
          ) {
              if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {
                var firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);

                if (firstIFDOffset >= 0x00000008) {
                  ifdStart = tiffOffset + firstIFDOffset;
                }
              }
            }
        }
      }

      if (ifdStart) {
        var _length = dataView.getUint16(ifdStart, littleEndian);

        var _offset;

        var i;

        for (i = 0; i < _length; i += 1) {
          _offset = ifdStart + i * 12 + 2;

          if (dataView.getUint16(_offset, littleEndian) === 0x0112
          /* Orientation */
          ) {
              // 8 is the offset of the current tag's value
              _offset += 8; // Get the original orientation value

              orientation = dataView.getUint16(_offset, littleEndian); // Override the orientation with its default value

              dataView.setUint16(_offset, 1, littleEndian);
              break;
            }
        }
      }
    } catch (error) {
      orientation = 1;
    }

    return orientation;
  }
  /**
   * Parse Exif Orientation value.
   * @param {number} orientation - The orientation to parse.
   * @returns {Object} The parsed result.
   */

  function parseOrientation(orientation) {
    var rotate = 0;
    var scaleX = 1;
    var scaleY = 1;

    switch (orientation) {
      // Flip horizontal
      case 2:
        scaleX = -1;
        break;
      // Rotate left 180°

      case 3:
        rotate = -180;
        break;
      // Flip vertical

      case 4:
        scaleY = -1;
        break;
      // Flip vertical and rotate right 90°

      case 5:
        rotate = 90;
        scaleY = -1;
        break;
      // Rotate right 90°

      case 6:
        rotate = 90;
        break;
      // Flip horizontal and rotate right 90°

      case 7:
        rotate = 90;
        scaleX = -1;
        break;
      // Rotate left 90°

      case 8:
        rotate = -90;
        break;

      default:
    }

    return {
      rotate: rotate,
      scaleX: scaleX,
      scaleY: scaleY
    };
  }

  var render = {
    render: function render() {
      this.initContainer();
      this.initCanvas();
      this.initCropBox();
      this.renderCanvas();

      if (this.cropped) {
        this.renderCropBox();
      }
    },
    initContainer: function initContainer() {
      var element = this.element,
          options = this.options,
          container = this.container,
          cropper = this.cropper;
      addClass(cropper, CLASS_HIDDEN);
      removeClass(element, CLASS_HIDDEN);
      var containerData = {
        width: Math.max(container.offsetWidth, Number(options.minContainerWidth) || 200),
        height: Math.max(container.offsetHeight, Number(options.minContainerHeight) || 100)
      };
      this.containerData = containerData;
      setStyle(cropper, {
        width: containerData.width,
        height: containerData.height
      });
      addClass(element, CLASS_HIDDEN);
      removeClass(cropper, CLASS_HIDDEN);
    },
    // Canvas (image wrapper)
    initCanvas: function initCanvas() {
      var containerData = this.containerData,
          imageData = this.imageData;
      var viewMode = this.options.viewMode;
      var rotated = Math.abs(imageData.rotate) % 180 === 90;
      var naturalWidth = rotated ? imageData.naturalHeight : imageData.naturalWidth;
      var naturalHeight = rotated ? imageData.naturalWidth : imageData.naturalHeight;
      var aspectRatio = naturalWidth / naturalHeight;
      var canvasWidth = containerData.width;
      var canvasHeight = containerData.height;

      if (containerData.height * aspectRatio > containerData.width) {
        if (viewMode === 3) {
          canvasWidth = containerData.height * aspectRatio;
        } else {
          canvasHeight = containerData.width / aspectRatio;
        }
      } else if (viewMode === 3) {
        canvasHeight = containerData.width / aspectRatio;
      } else {
        canvasWidth = containerData.height * aspectRatio;
      }

      var canvasData = {
        aspectRatio: aspectRatio,
        naturalWidth: naturalWidth,
        naturalHeight: naturalHeight,
        width: canvasWidth,
        height: canvasHeight
      };
      canvasData.left = (containerData.width - canvasWidth) / 2;
      canvasData.top = (containerData.height - canvasHeight) / 2;
      canvasData.oldLeft = canvasData.left;
      canvasData.oldTop = canvasData.top;
      this.canvasData = canvasData;
      this.limited = viewMode === 1 || viewMode === 2;
      this.limitCanvas(true, true);
      this.initialImageData = assign({}, imageData);
      this.initialCanvasData = assign({}, canvasData);
    },
    limitCanvas: function limitCanvas(sizeLimited, positionLimited) {
      var options = this.options,
          containerData = this.containerData,
          canvasData = this.canvasData,
          cropBoxData = this.cropBoxData;
      var viewMode = options.viewMode;
      var aspectRatio = canvasData.aspectRatio;
      var cropped = this.cropped && cropBoxData;

      if (sizeLimited) {
        var minCanvasWidth = Number(options.minCanvasWidth) || 0;
        var minCanvasHeight = Number(options.minCanvasHeight) || 0;

        if (viewMode > 1) {
          minCanvasWidth = Math.max(minCanvasWidth, containerData.width);
          minCanvasHeight = Math.max(minCanvasHeight, containerData.height);

          if (viewMode === 3) {
            if (minCanvasHeight * aspectRatio > minCanvasWidth) {
              minCanvasWidth = minCanvasHeight * aspectRatio;
            } else {
              minCanvasHeight = minCanvasWidth / aspectRatio;
            }
          }
        } else if (viewMode > 0) {
          if (minCanvasWidth) {
            minCanvasWidth = Math.max(minCanvasWidth, cropped ? cropBoxData.width : 0);
          } else if (minCanvasHeight) {
            minCanvasHeight = Math.max(minCanvasHeight, cropped ? cropBoxData.height : 0);
          } else if (cropped) {
            minCanvasWidth = cropBoxData.width;
            minCanvasHeight = cropBoxData.height;

            if (minCanvasHeight * aspectRatio > minCanvasWidth) {
              minCanvasWidth = minCanvasHeight * aspectRatio;
            } else {
              minCanvasHeight = minCanvasWidth / aspectRatio;
            }
          }
        }

        var _getAdjustedSizes = getAdjustedSizes({
          aspectRatio: aspectRatio,
          width: minCanvasWidth,
          height: minCanvasHeight
        });

        minCanvasWidth = _getAdjustedSizes.width;
        minCanvasHeight = _getAdjustedSizes.height;
        canvasData.minWidth = minCanvasWidth;
        canvasData.minHeight = minCanvasHeight;
        canvasData.maxWidth = Infinity;
        canvasData.maxHeight = Infinity;
      }

      if (positionLimited) {
        if (viewMode > (cropped ? 0 : 1)) {
          var newCanvasLeft = containerData.width - canvasData.width;
          var newCanvasTop = containerData.height - canvasData.height;
          canvasData.minLeft = Math.min(0, newCanvasLeft);
          canvasData.minTop = Math.min(0, newCanvasTop);
          canvasData.maxLeft = Math.max(0, newCanvasLeft);
          canvasData.maxTop = Math.max(0, newCanvasTop);

          if (cropped && this.limited) {
            canvasData.minLeft = Math.min(cropBoxData.left, cropBoxData.left + (cropBoxData.width - canvasData.width));
            canvasData.minTop = Math.min(cropBoxData.top, cropBoxData.top + (cropBoxData.height - canvasData.height));
            canvasData.maxLeft = cropBoxData.left;
            canvasData.maxTop = cropBoxData.top;

            if (viewMode === 2) {
              if (canvasData.width >= containerData.width) {
                canvasData.minLeft = Math.min(0, newCanvasLeft);
                canvasData.maxLeft = Math.max(0, newCanvasLeft);
              }

              if (canvasData.height >= containerData.height) {
                canvasData.minTop = Math.min(0, newCanvasTop);
                canvasData.maxTop = Math.max(0, newCanvasTop);
              }
            }
          }
        } else {
          canvasData.minLeft = -canvasData.width;
          canvasData.minTop = -canvasData.height;
          canvasData.maxLeft = containerData.width;
          canvasData.maxTop = containerData.height;
        }
      }
    },
    renderCanvas: function renderCanvas(changed, transformed) {
      var canvasData = this.canvasData,
          imageData = this.imageData;

      if (transformed) {
        var _getRotatedSizes = getRotatedSizes({
          width: imageData.naturalWidth * Math.abs(imageData.scaleX || 1),
          height: imageData.naturalHeight * Math.abs(imageData.scaleY || 1),
          degree: imageData.rotate || 0
        }),
            naturalWidth = _getRotatedSizes.width,
            naturalHeight = _getRotatedSizes.height;

        var width = canvasData.width * (naturalWidth / canvasData.naturalWidth);
        var height = canvasData.height * (naturalHeight / canvasData.naturalHeight);
        canvasData.left -= (width - canvasData.width) / 2;
        canvasData.top -= (height - canvasData.height) / 2;
        canvasData.width = width;
        canvasData.height = height;
        canvasData.aspectRatio = naturalWidth / naturalHeight;
        canvasData.naturalWidth = naturalWidth;
        canvasData.naturalHeight = naturalHeight;
        this.limitCanvas(true, false);
      }

      if (canvasData.width > canvasData.maxWidth || canvasData.width < canvasData.minWidth) {
        canvasData.left = canvasData.oldLeft;
      }

      if (canvasData.height > canvasData.maxHeight || canvasData.height < canvasData.minHeight) {
        canvasData.top = canvasData.oldTop;
      }

      canvasData.width = Math.min(Math.max(canvasData.width, canvasData.minWidth), canvasData.maxWidth);
      canvasData.height = Math.min(Math.max(canvasData.height, canvasData.minHeight), canvasData.maxHeight);
      this.limitCanvas(false, true);
      canvasData.left = Math.min(Math.max(canvasData.left, canvasData.minLeft), canvasData.maxLeft);
      canvasData.top = Math.min(Math.max(canvasData.top, canvasData.minTop), canvasData.maxTop);
      canvasData.oldLeft = canvasData.left;
      canvasData.oldTop = canvasData.top;
      setStyle(this.canvas, assign({
        width: canvasData.width,
        height: canvasData.height
      }, getTransforms({
        translateX: canvasData.left,
        translateY: canvasData.top
      })));
      this.renderImage(changed);

      if (this.cropped && this.limited) {
        this.limitCropBox(true, true);
      }
    },
    renderImage: function renderImage(changed) {
      var canvasData = this.canvasData,
          imageData = this.imageData;
      var width = imageData.naturalWidth * (canvasData.width / canvasData.naturalWidth);
      var height = imageData.naturalHeight * (canvasData.height / canvasData.naturalHeight);
      assign(imageData, {
        width: width,
        height: height,
        left: (canvasData.width - width) / 2,
        top: (canvasData.height - height) / 2
      });
      setStyle(this.image, assign({
        width: imageData.width,
        height: imageData.height
      }, getTransforms(assign({
        translateX: imageData.left,
        translateY: imageData.top
      }, imageData))));

      if (changed) {
        this.output();
      }
    },
    initCropBox: function initCropBox() {
      var options = this.options,
          canvasData = this.canvasData;
      var aspectRatio = options.aspectRatio || options.initialAspectRatio;
      var autoCropArea = Number(options.autoCropArea) || 0.8;
      var cropBoxData = {
        width: canvasData.width,
        height: canvasData.height
      };

      if (aspectRatio) {
        if (canvasData.height * aspectRatio > canvasData.width) {
          cropBoxData.height = cropBoxData.width / aspectRatio;
        } else {
          cropBoxData.width = cropBoxData.height * aspectRatio;
        }
      }

      this.cropBoxData = cropBoxData;
      this.limitCropBox(true, true); // Initialize auto crop area

      cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);
      cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight); // The width/height of auto crop area must large than "minWidth/Height"

      cropBoxData.width = Math.max(cropBoxData.minWidth, cropBoxData.width * autoCropArea);
      cropBoxData.height = Math.max(cropBoxData.minHeight, cropBoxData.height * autoCropArea);
      cropBoxData.left = canvasData.left + (canvasData.width - cropBoxData.width) / 2;
      cropBoxData.top = canvasData.top + (canvasData.height - cropBoxData.height) / 2;
      cropBoxData.oldLeft = cropBoxData.left;
      cropBoxData.oldTop = cropBoxData.top;
      this.initialCropBoxData = assign({}, cropBoxData);
    },
    limitCropBox: function limitCropBox(sizeLimited, positionLimited) {
      var options = this.options,
          containerData = this.containerData,
          canvasData = this.canvasData,
          cropBoxData = this.cropBoxData,
          limited = this.limited;
      var aspectRatio = options.aspectRatio;

      if (sizeLimited) {
        var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
        var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
        var maxCropBoxWidth = limited ? Math.min(containerData.width, canvasData.width, canvasData.width + canvasData.left, containerData.width - canvasData.left) : containerData.width;
        var maxCropBoxHeight = limited ? Math.min(containerData.height, canvasData.height, canvasData.height + canvasData.top, containerData.height - canvasData.top) : containerData.height; // The min/maxCropBoxWidth/Height must be less than container's width/height

        minCropBoxWidth = Math.min(minCropBoxWidth, containerData.width);
        minCropBoxHeight = Math.min(minCropBoxHeight, containerData.height);

        if (aspectRatio) {
          if (minCropBoxWidth && minCropBoxHeight) {
            if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {
              minCropBoxHeight = minCropBoxWidth / aspectRatio;
            } else {
              minCropBoxWidth = minCropBoxHeight * aspectRatio;
            }
          } else if (minCropBoxWidth) {
            minCropBoxHeight = minCropBoxWidth / aspectRatio;
          } else if (minCropBoxHeight) {
            minCropBoxWidth = minCropBoxHeight * aspectRatio;
          }

          if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
            maxCropBoxHeight = maxCropBoxWidth / aspectRatio;
          } else {
            maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
          }
        } // The minWidth/Height must be less than maxWidth/Height


        cropBoxData.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
        cropBoxData.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
        cropBoxData.maxWidth = maxCropBoxWidth;
        cropBoxData.maxHeight = maxCropBoxHeight;
      }

      if (positionLimited) {
        if (limited) {
          cropBoxData.minLeft = Math.max(0, canvasData.left);
          cropBoxData.minTop = Math.max(0, canvasData.top);
          cropBoxData.maxLeft = Math.min(containerData.width, canvasData.left + canvasData.width) - cropBoxData.width;
          cropBoxData.maxTop = Math.min(containerData.height, canvasData.top + canvasData.height) - cropBoxData.height;
        } else {
          cropBoxData.minLeft = 0;
          cropBoxData.minTop = 0;
          cropBoxData.maxLeft = containerData.width - cropBoxData.width;
          cropBoxData.maxTop = containerData.height - cropBoxData.height;
        }
      }
    },
    renderCropBox: function renderCropBox() {
      var options = this.options,
          containerData = this.containerData,
          cropBoxData = this.cropBoxData;

      if (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
        cropBoxData.left = cropBoxData.oldLeft;
      }

      if (cropBoxData.height > cropBoxData.maxHeight || cropBoxData.height < cropBoxData.minHeight) {
        cropBoxData.top = cropBoxData.oldTop;
      }

      cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);
      cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);
      this.limitCropBox(false, true);
      cropBoxData.left = Math.min(Math.max(cropBoxData.left, cropBoxData.minLeft), cropBoxData.maxLeft);
      cropBoxData.top = Math.min(Math.max(cropBoxData.top, cropBoxData.minTop), cropBoxData.maxTop);
      cropBoxData.oldLeft = cropBoxData.left;
      cropBoxData.oldTop = cropBoxData.top;

      if (options.movable && options.cropBoxMovable) {
        // Turn to move the canvas when the crop box is equal to the container
        setData(this.face, DATA_ACTION, cropBoxData.width >= containerData.width && cropBoxData.height >= containerData.height ? ACTION_MOVE : ACTION_ALL);
      }

      setStyle(this.cropBox, assign({
        width: cropBoxData.width,
        height: cropBoxData.height
      }, getTransforms({
        translateX: cropBoxData.left,
        translateY: cropBoxData.top
      })));

      if (this.cropped && this.limited) {
        this.limitCanvas(true, true);
      }

      if (!this.disabled) {
        this.output();
      }
    },
    output: function output() {
      this.preview();
      dispatchEvent(this.element, EVENT_CROP, this.getData());
    }
  };

  var preview = {
    initPreview: function initPreview() {
      var element = this.element,
          crossOrigin = this.crossOrigin;
      var preview = this.options.preview;
      var url = crossOrigin ? this.crossOriginUrl : this.url;
      var alt = element.alt || 'The image to preview';
      var image = document.createElement('img');

      if (crossOrigin) {
        image.crossOrigin = crossOrigin;
      }

      image.src = url;
      image.alt = alt;
      this.viewBox.appendChild(image);
      this.viewBoxImage = image;

      if (!preview) {
        return;
      }

      var previews = preview;

      if (typeof preview === 'string') {
        previews = element.ownerDocument.querySelectorAll(preview);
      } else if (preview.querySelector) {
        previews = [preview];
      }

      this.previews = previews;
      forEach(previews, function (el) {
        var img = document.createElement('img'); // Save the original size for recover

        setData(el, DATA_PREVIEW, {
          width: el.offsetWidth,
          height: el.offsetHeight,
          html: el.innerHTML
        });

        if (crossOrigin) {
          img.crossOrigin = crossOrigin;
        }

        img.src = url;
        img.alt = alt;
        /**
         * Override img element styles
         * Add `display:block` to avoid margin top issue
         * Add `height:auto` to override `height` attribute on IE8
         * (Occur only when margin-top <= -height)
         */

        img.style.cssText = 'display:block;' + 'width:100%;' + 'height:auto;' + 'min-width:0!important;' + 'min-height:0!important;' + 'max-width:none!important;' + 'max-height:none!important;' + 'image-orientation:0deg!important;"';
        el.innerHTML = '';
        el.appendChild(img);
      });
    },
    resetPreview: function resetPreview() {
      forEach(this.previews, function (element) {
        var data = getData(element, DATA_PREVIEW);
        setStyle(element, {
          width: data.width,
          height: data.height
        });
        element.innerHTML = data.html;
        removeData(element, DATA_PREVIEW);
      });
    },
    preview: function preview() {
      var imageData = this.imageData,
          canvasData = this.canvasData,
          cropBoxData = this.cropBoxData;
      var cropBoxWidth = cropBoxData.width,
          cropBoxHeight = cropBoxData.height;
      var width = imageData.width,
          height = imageData.height;
      var left = cropBoxData.left - canvasData.left - imageData.left;
      var top = cropBoxData.top - canvasData.top - imageData.top;

      if (!this.cropped || this.disabled) {
        return;
      }

      setStyle(this.viewBoxImage, assign({
        width: width,
        height: height
      }, getTransforms(assign({
        translateX: -left,
        translateY: -top
      }, imageData))));
      forEach(this.previews, function (element) {
        var data = getData(element, DATA_PREVIEW);
        var originalWidth = data.width;
        var originalHeight = data.height;
        var newWidth = originalWidth;
        var newHeight = originalHeight;
        var ratio = 1;

        if (cropBoxWidth) {
          ratio = originalWidth / cropBoxWidth;
          newHeight = cropBoxHeight * ratio;
        }

        if (cropBoxHeight && newHeight > originalHeight) {
          ratio = originalHeight / cropBoxHeight;
          newWidth = cropBoxWidth * ratio;
          newHeight = originalHeight;
        }

        setStyle(element, {
          width: newWidth,
          height: newHeight
        });
        setStyle(element.getElementsByTagName('img')[0], assign({
          width: width * ratio,
          height: height * ratio
        }, getTransforms(assign({
          translateX: -left * ratio,
          translateY: -top * ratio
        }, imageData))));
      });
    }
  };

  var events = {
    bind: function bind() {
      var element = this.element,
          options = this.options,
          cropper = this.cropper;

      if (isFunction(options.cropstart)) {
        addListener(element, EVENT_CROP_START, options.cropstart);
      }

      if (isFunction(options.cropmove)) {
        addListener(element, EVENT_CROP_MOVE, options.cropmove);
      }

      if (isFunction(options.cropend)) {
        addListener(element, EVENT_CROP_END, options.cropend);
      }

      if (isFunction(options.crop)) {
        addListener(element, EVENT_CROP, options.crop);
      }

      if (isFunction(options.zoom)) {
        addListener(element, EVENT_ZOOM, options.zoom);
      }

      addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = this.cropStart.bind(this));

      if (options.zoomable && options.zoomOnWheel) {
        addListener(cropper, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
          passive: false,
          capture: true
        });
      }

      if (options.toggleDragModeOnDblclick) {
        addListener(cropper, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
      }

      addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove = this.cropMove.bind(this));
      addListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd = this.cropEnd.bind(this));

      if (options.responsive) {
        addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));
      }
    },
    unbind: function unbind() {
      var element = this.element,
          options = this.options,
          cropper = this.cropper;

      if (isFunction(options.cropstart)) {
        removeListener(element, EVENT_CROP_START, options.cropstart);
      }

      if (isFunction(options.cropmove)) {
        removeListener(element, EVENT_CROP_MOVE, options.cropmove);
      }

      if (isFunction(options.cropend)) {
        removeListener(element, EVENT_CROP_END, options.cropend);
      }

      if (isFunction(options.crop)) {
        removeListener(element, EVENT_CROP, options.crop);
      }

      if (isFunction(options.zoom)) {
        removeListener(element, EVENT_ZOOM, options.zoom);
      }

      removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);

      if (options.zoomable && options.zoomOnWheel) {
        removeListener(cropper, EVENT_WHEEL, this.onWheel, {
          passive: false,
          capture: true
        });
      }

      if (options.toggleDragModeOnDblclick) {
        removeListener(cropper, EVENT_DBLCLICK, this.onDblclick);
      }

      removeListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove);
      removeListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd);

      if (options.responsive) {
        removeListener(window, EVENT_RESIZE, this.onResize);
      }
    }
  };

  var handlers = {
    resize: function resize() {
      var options = this.options,
          container = this.container,
          containerData = this.containerData;
      var minContainerWidth = Number(options.minContainerWidth) || MIN_CONTAINER_WIDTH;
      var minContainerHeight = Number(options.minContainerHeight) || MIN_CONTAINER_HEIGHT;

      if (this.disabled || containerData.width <= minContainerWidth || containerData.height <= minContainerHeight) {
        return;
      }

      var ratio = container.offsetWidth / containerData.width; // Resize when width changed or height changed

      if (ratio !== 1 || container.offsetHeight !== containerData.height) {
        var canvasData;
        var cropBoxData;

        if (options.restore) {
          canvasData = this.getCanvasData();
          cropBoxData = this.getCropBoxData();
        }

        this.render();

        if (options.restore) {
          this.setCanvasData(forEach(canvasData, function (n, i) {
            canvasData[i] = n * ratio;
          }));
          this.setCropBoxData(forEach(cropBoxData, function (n, i) {
            cropBoxData[i] = n * ratio;
          }));
        }
      }
    },
    dblclick: function dblclick() {
      if (this.disabled || this.options.dragMode === DRAG_MODE_NONE) {
        return;
      }

      this.setDragMode(hasClass(this.dragBox, CLASS_CROP) ? DRAG_MODE_MOVE : DRAG_MODE_CROP);
    },
    wheel: function wheel(event) {
      var _this = this;

      var ratio = Number(this.options.wheelZoomRatio) || 0.1;
      var delta = 1;

      if (this.disabled) {
        return;
      }

      event.preventDefault(); // Limit wheel speed to prevent zoom too fast (#21)

      if (this.wheeling) {
        return;
      }

      this.wheeling = true;
      setTimeout(function () {
        _this.wheeling = false;
      }, 50);

      if (event.deltaY) {
        delta = event.deltaY > 0 ? 1 : -1;
      } else if (event.wheelDelta) {
        delta = -event.wheelDelta / 120;
      } else if (event.detail) {
        delta = event.detail > 0 ? 1 : -1;
      }

      this.zoom(-delta * ratio, event);
    },
    cropStart: function cropStart(event) {
      var buttons = event.buttons,
          button = event.button;

      if (this.disabled // Handle mouse event and pointer event and ignore touch event
      || (event.type === 'mousedown' || event.type === 'pointerdown' && event.pointerType === 'mouse') && ( // No primary button (Usually the left button)
      isNumber(buttons) && buttons !== 1 || isNumber(button) && button !== 0 // Open context menu
      || event.ctrlKey)) {
        return;
      }

      var options = this.options,
          pointers = this.pointers;
      var action;

      if (event.changedTouches) {
        // Handle touch event
        forEach(event.changedTouches, function (touch) {
          pointers[touch.identifier] = getPointer(touch);
        });
      } else {
        // Handle mouse event and pointer event
        pointers[event.pointerId || 0] = getPointer(event);
      }

      if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
        action = ACTION_ZOOM;
      } else {
        action = getData(event.target, DATA_ACTION);
      }

      if (!REGEXP_ACTIONS.test(action)) {
        return;
      }

      if (dispatchEvent(this.element, EVENT_CROP_START, {
        originalEvent: event,
        action: action
      }) === false) {
        return;
      } // This line is required for preventing page zooming in iOS browsers


      event.preventDefault();
      this.action = action;
      this.cropping = false;

      if (action === ACTION_CROP) {
        this.cropping = true;
        addClass(this.dragBox, CLASS_MODAL);
      }
    },
    cropMove: function cropMove(event) {
      var action = this.action;

      if (this.disabled || !action) {
        return;
      }

      var pointers = this.pointers;
      event.preventDefault();

      if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
        originalEvent: event,
        action: action
      }) === false) {
        return;
      }

      if (event.changedTouches) {
        forEach(event.changedTouches, function (touch) {
          // The first parameter should not be undefined (#432)
          assign(pointers[touch.identifier] || {}, getPointer(touch, true));
        });
      } else {
        assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
      }

      this.change(event);
    },
    cropEnd: function cropEnd(event) {
      if (this.disabled) {
        return;
      }

      var action = this.action,
          pointers = this.pointers;

      if (event.changedTouches) {
        forEach(event.changedTouches, function (touch) {
          delete pointers[touch.identifier];
        });
      } else {
        delete pointers[event.pointerId || 0];
      }

      if (!action) {
        return;
      }

      event.preventDefault();

      if (!Object.keys(pointers).length) {
        this.action = '';
      }

      if (this.cropping) {
        this.cropping = false;
        toggleClass(this.dragBox, CLASS_MODAL, this.cropped && this.options.modal);
      }

      dispatchEvent(this.element, EVENT_CROP_END, {
        originalEvent: event,
        action: action
      });
    }
  };

  var change = {
    change: function change(event) {
      var options = this.options,
          canvasData = this.canvasData,
          containerData = this.containerData,
          cropBoxData = this.cropBoxData,
          pointers = this.pointers;
      var action = this.action;
      var aspectRatio = options.aspectRatio;
      var left = cropBoxData.left,
          top = cropBoxData.top,
          width = cropBoxData.width,
          height = cropBoxData.height;
      var right = left + width;
      var bottom = top + height;
      var minLeft = 0;
      var minTop = 0;
      var maxWidth = containerData.width;
      var maxHeight = containerData.height;
      var renderable = true;
      var offset; // Locking aspect ratio in "free mode" by holding shift key

      if (!aspectRatio && event.shiftKey) {
        aspectRatio = width && height ? width / height : 1;
      }

      if (this.limited) {
        minLeft = cropBoxData.minLeft;
        minTop = cropBoxData.minTop;
        maxWidth = minLeft + Math.min(containerData.width, canvasData.width, canvasData.left + canvasData.width);
        maxHeight = minTop + Math.min(containerData.height, canvasData.height, canvasData.top + canvasData.height);
      }

      var pointer = pointers[Object.keys(pointers)[0]];
      var range = {
        x: pointer.endX - pointer.startX,
        y: pointer.endY - pointer.startY
      };

      var check = function check(side) {
        switch (side) {
          case ACTION_EAST:
            if (right + range.x > maxWidth) {
              range.x = maxWidth - right;
            }

            break;

          case ACTION_WEST:
            if (left + range.x < minLeft) {
              range.x = minLeft - left;
            }

            break;

          case ACTION_NORTH:
            if (top + range.y < minTop) {
              range.y = minTop - top;
            }

            break;

          case ACTION_SOUTH:
            if (bottom + range.y > maxHeight) {
              range.y = maxHeight - bottom;
            }

            break;

          default:
        }
      };

      switch (action) {
        // Move crop box
        case ACTION_ALL:
          left += range.x;
          top += range.y;
          break;
        // Resize crop box

        case ACTION_EAST:
          if (range.x >= 0 && (right >= maxWidth || aspectRatio && (top <= minTop || bottom >= maxHeight))) {
            renderable = false;
            break;
          }

          check(ACTION_EAST);
          width += range.x;

          if (width < 0) {
            action = ACTION_WEST;
            width = -width;
            left -= width;
          }

          if (aspectRatio) {
            height = width / aspectRatio;
            top += (cropBoxData.height - height) / 2;
          }

          break;

        case ACTION_NORTH:
          if (range.y <= 0 && (top <= minTop || aspectRatio && (left <= minLeft || right >= maxWidth))) {
            renderable = false;
            break;
          }

          check(ACTION_NORTH);
          height -= range.y;
          top += range.y;

          if (height < 0) {
            action = ACTION_SOUTH;
            height = -height;
            top -= height;
          }

          if (aspectRatio) {
            width = height * aspectRatio;
            left += (cropBoxData.width - width) / 2;
          }

          break;

        case ACTION_WEST:
          if (range.x <= 0 && (left <= minLeft || aspectRatio && (top <= minTop || bottom >= maxHeight))) {
            renderable = false;
            break;
          }

          check(ACTION_WEST);
          width -= range.x;
          left += range.x;

          if (width < 0) {
            action = ACTION_EAST;
            width = -width;
            left -= width;
          }

          if (aspectRatio) {
            height = width / aspectRatio;
            top += (cropBoxData.height - height) / 2;
          }

          break;

        case ACTION_SOUTH:
          if (range.y >= 0 && (bottom >= maxHeight || aspectRatio && (left <= minLeft || right >= maxWidth))) {
            renderable = false;
            break;
          }

          check(ACTION_SOUTH);
          height += range.y;

          if (height < 0) {
            action = ACTION_NORTH;
            height = -height;
            top -= height;
          }

          if (aspectRatio) {
            width = height * aspectRatio;
            left += (cropBoxData.width - width) / 2;
          }

          break;

        case ACTION_NORTH_EAST:
          if (aspectRatio) {
            if (range.y <= 0 && (top <= minTop || right >= maxWidth)) {
              renderable = false;
              break;
            }

            check(ACTION_NORTH);
            height -= range.y;
            top += range.y;
            width = height * aspectRatio;
          } else {
            check(ACTION_NORTH);
            check(ACTION_EAST);

            if (range.x >= 0) {
              if (right < maxWidth) {
                width += range.x;
              } else if (range.y <= 0 && top <= minTop) {
                renderable = false;
              }
            } else {
              width += range.x;
            }

            if (range.y <= 0) {
              if (top > minTop) {
                height -= range.y;
                top += range.y;
              }
            } else {
              height -= range.y;
              top += range.y;
            }
          }

          if (width < 0 && height < 0) {
            action = ACTION_SOUTH_WEST;
            height = -height;
            width = -width;
            top -= height;
            left -= width;
          } else if (width < 0) {
            action = ACTION_NORTH_WEST;
            width = -width;
            left -= width;
          } else if (height < 0) {
            action = ACTION_SOUTH_EAST;
            height = -height;
            top -= height;
          }

          break;

        case ACTION_NORTH_WEST:
          if (aspectRatio) {
            if (range.y <= 0 && (top <= minTop || left <= minLeft)) {
              renderable = false;
              break;
            }

            check(ACTION_NORTH);
            height -= range.y;
            top += range.y;
            width = height * aspectRatio;
            left += cropBoxData.width - width;
          } else {
            check(ACTION_NORTH);
            check(ACTION_WEST);

            if (range.x <= 0) {
              if (left > minLeft) {
                width -= range.x;
                left += range.x;
              } else if (range.y <= 0 && top <= minTop) {
                renderable = false;
              }
            } else {
              width -= range.x;
              left += range.x;
            }

            if (range.y <= 0) {
              if (top > minTop) {
                height -= range.y;
                top += range.y;
              }
            } else {
              height -= range.y;
              top += range.y;
            }
          }

          if (width < 0 && height < 0) {
            action = ACTION_SOUTH_EAST;
            height = -height;
            width = -width;
            top -= height;
            left -= width;
          } else if (width < 0) {
            action = ACTION_NORTH_EAST;
            width = -width;
            left -= width;
          } else if (height < 0) {
            action = ACTION_SOUTH_WEST;
            height = -height;
            top -= height;
          }

          break;

        case ACTION_SOUTH_WEST:
          if (aspectRatio) {
            if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {
              renderable = false;
              break;
            }

            check(ACTION_WEST);
            width -= range.x;
            left += range.x;
            height = width / aspectRatio;
          } else {
            check(ACTION_SOUTH);
            check(ACTION_WEST);

            if (range.x <= 0) {
              if (left > minLeft) {
                width -= range.x;
                left += range.x;
              } else if (range.y >= 0 && bottom >= maxHeight) {
                renderable = false;
              }
            } else {
              width -= range.x;
              left += range.x;
            }

            if (range.y >= 0) {
              if (bottom < maxHeight) {
                height += range.y;
              }
            } else {
              height += range.y;
            }
          }

          if (width < 0 && height < 0) {
            action = ACTION_NORTH_EAST;
            height = -height;
            width = -width;
            top -= height;
            left -= width;
          } else if (width < 0) {
            action = ACTION_SOUTH_EAST;
            width = -width;
            left -= width;
          } else if (height < 0) {
            action = ACTION_NORTH_WEST;
            height = -height;
            top -= height;
          }

          break;

        case ACTION_SOUTH_EAST:
          if (aspectRatio) {
            if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {
              renderable = false;
              break;
            }

            check(ACTION_EAST);
            width += range.x;
            height = width / aspectRatio;
          } else {
            check(ACTION_SOUTH);
            check(ACTION_EAST);

            if (range.x >= 0) {
              if (right < maxWidth) {
                width += range.x;
              } else if (range.y >= 0 && bottom >= maxHeight) {
                renderable = false;
              }
            } else {
              width += range.x;
            }

            if (range.y >= 0) {
              if (bottom < maxHeight) {
                height += range.y;
              }
            } else {
              height += range.y;
            }
          }

          if (width < 0 && height < 0) {
            action = ACTION_NORTH_WEST;
            height = -height;
            width = -width;
            top -= height;
            left -= width;
          } else if (width < 0) {
            action = ACTION_SOUTH_WEST;
            width = -width;
            left -= width;
          } else if (height < 0) {
            action = ACTION_NORTH_EAST;
            height = -height;
            top -= height;
          }

          break;
        // Move canvas

        case ACTION_MOVE:
          this.move(range.x, range.y);
          renderable = false;
          break;
        // Zoom canvas

        case ACTION_ZOOM:
          this.zoom(getMaxZoomRatio(pointers), event);
          renderable = false;
          break;
        // Create crop box

        case ACTION_CROP:
          if (!range.x || !range.y) {
            renderable = false;
            break;
          }

          offset = getOffset(this.cropper);
          left = pointer.startX - offset.left;
          top = pointer.startY - offset.top;
          width = cropBoxData.minWidth;
          height = cropBoxData.minHeight;

          if (range.x > 0) {
            action = range.y > 0 ? ACTION_SOUTH_EAST : ACTION_NORTH_EAST;
          } else if (range.x < 0) {
            left -= width;
            action = range.y > 0 ? ACTION_SOUTH_WEST : ACTION_NORTH_WEST;
          }

          if (range.y < 0) {
            top -= height;
          } // Show the crop box if is hidden


          if (!this.cropped) {
            removeClass(this.cropBox, CLASS_HIDDEN);
            this.cropped = true;

            if (this.limited) {
              this.limitCropBox(true, true);
            }
          }

          break;

        default:
      }

      if (renderable) {
        cropBoxData.width = width;
        cropBoxData.height = height;
        cropBoxData.left = left;
        cropBoxData.top = top;
        this.action = action;
        this.renderCropBox();
      } // Override


      forEach(pointers, function (p) {
        p.startX = p.endX;
        p.startY = p.endY;
      });
    }
  };

  var methods = {
    // Show the crop box manually
    crop: function crop() {
      if (this.ready && !this.cropped && !this.disabled) {
        this.cropped = true;
        this.limitCropBox(true, true);

        if (this.options.modal) {
          addClass(this.dragBox, CLASS_MODAL);
        }

        removeClass(this.cropBox, CLASS_HIDDEN);
        this.setCropBoxData(this.initialCropBoxData);
      }

      return this;
    },
    // Reset the image and crop box to their initial states
    reset: function reset() {
      if (this.ready && !this.disabled) {
        this.imageData = assign({}, this.initialImageData);
        this.canvasData = assign({}, this.initialCanvasData);
        this.cropBoxData = assign({}, this.initialCropBoxData);
        this.renderCanvas();

        if (this.cropped) {
          this.renderCropBox();
        }
      }

      return this;
    },
    // Clear the crop box
    clear: function clear() {
      if (this.cropped && !this.disabled) {
        assign(this.cropBoxData, {
          left: 0,
          top: 0,
          width: 0,
          height: 0
        });
        this.cropped = false;
        this.renderCropBox();
        this.limitCanvas(true, true); // Render canvas after crop box rendered

        this.renderCanvas();
        removeClass(this.dragBox, CLASS_MODAL);
        addClass(this.cropBox, CLASS_HIDDEN);
      }

      return this;
    },

    /**
     * Replace the image's src and rebuild the cropper
     * @param {string} url - The new URL.
     * @param {boolean} [hasSameSize] - Indicate if the new image has the same size as the old one.
     * @returns {Cropper} this
     */
    replace: function replace(url) {
      var hasSameSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      if (!this.disabled && url) {
        if (this.isImg) {
          this.element.src = url;
        }

        if (hasSameSize) {
          this.url = url;
          this.image.src = url;

          if (this.ready) {
            this.viewBoxImage.src = url;
            forEach(this.previews, function (element) {
              element.getElementsByTagName('img')[0].src = url;
            });
          }
        } else {
          if (this.isImg) {
            this.replaced = true;
          }

          this.options.data = null;
          this.uncreate();
          this.load(url);
        }
      }

      return this;
    },
    // Enable (unfreeze) the cropper
    enable: function enable() {
      if (this.ready && this.disabled) {
        this.disabled = false;
        removeClass(this.cropper, CLASS_DISABLED);
      }

      return this;
    },
    // Disable (freeze) the cropper
    disable: function disable() {
      if (this.ready && !this.disabled) {
        this.disabled = true;
        addClass(this.cropper, CLASS_DISABLED);
      }

      return this;
    },

    /**
     * Destroy the cropper and remove the instance from the image
     * @returns {Cropper} this
     */
    destroy: function destroy() {
      var element = this.element;

      if (!element[NAMESPACE]) {
        return this;
      }

      element[NAMESPACE] = undefined;

      if (this.isImg && this.replaced) {
        element.src = this.originalUrl;
      }

      this.uncreate();
      return this;
    },

    /**
     * Move the canvas with relative offsets
     * @param {number} offsetX - The relative offset distance on the x-axis.
     * @param {number} [offsetY=offsetX] - The relative offset distance on the y-axis.
     * @returns {Cropper} this
     */
    move: function move(offsetX) {
      var offsetY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : offsetX;
      var _this$canvasData = this.canvasData,
          left = _this$canvasData.left,
          top = _this$canvasData.top;
      return this.moveTo(isUndefined(offsetX) ? offsetX : left + Number(offsetX), isUndefined(offsetY) ? offsetY : top + Number(offsetY));
    },

    /**
     * Move the canvas to an absolute point
     * @param {number} x - The x-axis coordinate.
     * @param {number} [y=x] - The y-axis coordinate.
     * @returns {Cropper} this
     */
    moveTo: function moveTo(x) {
      var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
      var canvasData = this.canvasData;
      var changed = false;
      x = Number(x);
      y = Number(y);

      if (this.ready && !this.disabled && this.options.movable) {
        if (isNumber(x)) {
          canvasData.left = x;
          changed = true;
        }

        if (isNumber(y)) {
          canvasData.top = y;
          changed = true;
        }

        if (changed) {
          this.renderCanvas(true);
        }
      }

      return this;
    },

    /**
     * Zoom the canvas with a relative ratio
     * @param {number} ratio - The target ratio.
     * @param {Event} _originalEvent - The original event if any.
     * @returns {Cropper} this
     */
    zoom: function zoom(ratio, _originalEvent) {
      var canvasData = this.canvasData;
      ratio = Number(ratio);

      if (ratio < 0) {
        ratio = 1 / (1 - ratio);
      } else {
        ratio = 1 + ratio;
      }

      return this.zoomTo(canvasData.width * ratio / canvasData.naturalWidth, null, _originalEvent);
    },

    /**
     * Zoom the canvas to an absolute ratio
     * @param {number} ratio - The target ratio.
     * @param {Object} pivot - The zoom pivot point coordinate.
     * @param {Event} _originalEvent - The original event if any.
     * @returns {Cropper} this
     */
    zoomTo: function zoomTo(ratio, pivot, _originalEvent) {
      var options = this.options,
          canvasData = this.canvasData;
      var width = canvasData.width,
          height = canvasData.height,
          naturalWidth = canvasData.naturalWidth,
          naturalHeight = canvasData.naturalHeight;
      ratio = Number(ratio);

      if (ratio >= 0 && this.ready && !this.disabled && options.zoomable) {
        var newWidth = naturalWidth * ratio;
        var newHeight = naturalHeight * ratio;

        if (dispatchEvent(this.element, EVENT_ZOOM, {
          ratio: ratio,
          oldRatio: width / naturalWidth,
          originalEvent: _originalEvent
        }) === false) {
          return this;
        }

        if (_originalEvent) {
          var pointers = this.pointers;
          var offset = getOffset(this.cropper);
          var center = pointers && Object.keys(pointers).length ? getPointersCenter(pointers) : {
            pageX: _originalEvent.pageX,
            pageY: _originalEvent.pageY
          }; // Zoom from the triggering point of the event

          canvasData.left -= (newWidth - width) * ((center.pageX - offset.left - canvasData.left) / width);
          canvasData.top -= (newHeight - height) * ((center.pageY - offset.top - canvasData.top) / height);
        } else if (isPlainObject(pivot) && isNumber(pivot.x) && isNumber(pivot.y)) {
          canvasData.left -= (newWidth - width) * ((pivot.x - canvasData.left) / width);
          canvasData.top -= (newHeight - height) * ((pivot.y - canvasData.top) / height);
        } else {
          // Zoom from the center of the canvas
          canvasData.left -= (newWidth - width) / 2;
          canvasData.top -= (newHeight - height) / 2;
        }

        canvasData.width = newWidth;
        canvasData.height = newHeight;
        this.renderCanvas(true);
      }

      return this;
    },

    /**
     * Rotate the canvas with a relative degree
     * @param {number} degree - The rotate degree.
     * @returns {Cropper} this
     */
    rotate: function rotate(degree) {
      return this.rotateTo((this.imageData.rotate || 0) + Number(degree));
    },

    /**
     * Rotate the canvas to an absolute degree
     * @param {number} degree - The rotate degree.
     * @returns {Cropper} this
     */
    rotateTo: function rotateTo(degree) {
      degree = Number(degree);

      if (isNumber(degree) && this.ready && !this.disabled && this.options.rotatable) {
        this.imageData.rotate = degree % 360;
        this.renderCanvas(true, true);
      }

      return this;
    },

    /**
     * Scale the image on the x-axis.
     * @param {number} scaleX - The scale ratio on the x-axis.
     * @returns {Cropper} this
     */
    scaleX: function scaleX(_scaleX) {
      var scaleY = this.imageData.scaleY;
      return this.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);
    },

    /**
     * Scale the image on the y-axis.
     * @param {number} scaleY - The scale ratio on the y-axis.
     * @returns {Cropper} this
     */
    scaleY: function scaleY(_scaleY) {
      var scaleX = this.imageData.scaleX;
      return this.scale(isNumber(scaleX) ? scaleX : 1, _scaleY);
    },

    /**
     * Scale the image
     * @param {number} scaleX - The scale ratio on the x-axis.
     * @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.
     * @returns {Cropper} this
     */
    scale: function scale(scaleX) {
      var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
      var imageData = this.imageData;
      var transformed = false;
      scaleX = Number(scaleX);
      scaleY = Number(scaleY);

      if (this.ready && !this.disabled && this.options.scalable) {
        if (isNumber(scaleX)) {
          imageData.scaleX = scaleX;
          transformed = true;
        }

        if (isNumber(scaleY)) {
          imageData.scaleY = scaleY;
          transformed = true;
        }

        if (transformed) {
          this.renderCanvas(true, true);
        }
      }

      return this;
    },

    /**
     * Get the cropped area position and size data (base on the original image)
     * @param {boolean} [rounded=false] - Indicate if round the data values or not.
     * @returns {Object} The result cropped data.
     */
    getData: function getData() {
      var rounded = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var options = this.options,
          imageData = this.imageData,
          canvasData = this.canvasData,
          cropBoxData = this.cropBoxData;
      var data;

      if (this.ready && this.cropped) {
        data = {
          x: cropBoxData.left - canvasData.left,
          y: cropBoxData.top - canvasData.top,
          width: cropBoxData.width,
          height: cropBoxData.height
        };
        var ratio = imageData.width / imageData.naturalWidth;
        forEach(data, function (n, i) {
          data[i] = n / ratio;
        });

        if (rounded) {
          // In case rounding off leads to extra 1px in right or bottom border
          // we should round the top-left corner and the dimension (#343).
          var bottom = Math.round(data.y + data.height);
          var right = Math.round(data.x + data.width);
          data.x = Math.round(data.x);
          data.y = Math.round(data.y);
          data.width = right - data.x;
          data.height = bottom - data.y;
        }
      } else {
        data = {
          x: 0,
          y: 0,
          width: 0,
          height: 0
        };
      }

      if (options.rotatable) {
        data.rotate = imageData.rotate || 0;
      }

      if (options.scalable) {
        data.scaleX = imageData.scaleX || 1;
        data.scaleY = imageData.scaleY || 1;
      }

      return data;
    },

    /**
     * Set the cropped area position and size with new data
     * @param {Object} data - The new data.
     * @returns {Cropper} this
     */
    setData: function setData(data) {
      var options = this.options,
          imageData = this.imageData,
          canvasData = this.canvasData;
      var cropBoxData = {};

      if (this.ready && !this.disabled && isPlainObject(data)) {
        var transformed = false;

        if (options.rotatable) {
          if (isNumber(data.rotate) && data.rotate !== imageData.rotate) {
            imageData.rotate = data.rotate;
            transformed = true;
          }
        }

        if (options.scalable) {
          if (isNumber(data.scaleX) && data.scaleX !== imageData.scaleX) {
            imageData.scaleX = data.scaleX;
            transformed = true;
          }

          if (isNumber(data.scaleY) && data.scaleY !== imageData.scaleY) {
            imageData.scaleY = data.scaleY;
            transformed = true;
          }
        }

        if (transformed) {
          this.renderCanvas(true, true);
        }

        var ratio = imageData.width / imageData.naturalWidth;

        if (isNumber(data.x)) {
          cropBoxData.left = data.x * ratio + canvasData.left;
        }

        if (isNumber(data.y)) {
          cropBoxData.top = data.y * ratio + canvasData.top;
        }

        if (isNumber(data.width)) {
          cropBoxData.width = data.width * ratio;
        }

        if (isNumber(data.height)) {
          cropBoxData.height = data.height * ratio;
        }

        this.setCropBoxData(cropBoxData);
      }

      return this;
    },

    /**
     * Get the container size data.
     * @returns {Object} The result container data.
     */
    getContainerData: function getContainerData() {
      return this.ready ? assign({}, this.containerData) : {};
    },

    /**
     * Get the image position and size data.
     * @returns {Object} The result image data.
     */
    getImageData: function getImageData() {
      return this.sized ? assign({}, this.imageData) : {};
    },

    /**
     * Get the canvas position and size data.
     * @returns {Object} The result canvas data.
     */
    getCanvasData: function getCanvasData() {
      var canvasData = this.canvasData;
      var data = {};

      if (this.ready) {
        forEach(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
          data[n] = canvasData[n];
        });
      }

      return data;
    },

    /**
     * Set the canvas position and size with new data.
     * @param {Object} data - The new canvas data.
     * @returns {Cropper} this
     */
    setCanvasData: function setCanvasData(data) {
      var canvasData = this.canvasData;
      var aspectRatio = canvasData.aspectRatio;

      if (this.ready && !this.disabled && isPlainObject(data)) {
        if (isNumber(data.left)) {
          canvasData.left = data.left;
        }

        if (isNumber(data.top)) {
          canvasData.top = data.top;
        }

        if (isNumber(data.width)) {
          canvasData.width = data.width;
          canvasData.height = data.width / aspectRatio;
        } else if (isNumber(data.height)) {
          canvasData.height = data.height;
          canvasData.width = data.height * aspectRatio;
        }

        this.renderCanvas(true);
      }

      return this;
    },

    /**
     * Get the crop box position and size data.
     * @returns {Object} The result crop box data.
     */
    getCropBoxData: function getCropBoxData() {
      var cropBoxData = this.cropBoxData;
      var data;

      if (this.ready && this.cropped) {
        data = {
          left: cropBoxData.left,
          top: cropBoxData.top,
          width: cropBoxData.width,
          height: cropBoxData.height
        };
      }

      return data || {};
    },

    /**
     * Set the crop box position and size with new data.
     * @param {Object} data - The new crop box data.
     * @returns {Cropper} this
     */
    setCropBoxData: function setCropBoxData(data) {
      var cropBoxData = this.cropBoxData;
      var aspectRatio = this.options.aspectRatio;
      var widthChanged;
      var heightChanged;

      if (this.ready && this.cropped && !this.disabled && isPlainObject(data)) {
        if (isNumber(data.left)) {
          cropBoxData.left = data.left;
        }

        if (isNumber(data.top)) {
          cropBoxData.top = data.top;
        }

        if (isNumber(data.width) && data.width !== cropBoxData.width) {
          widthChanged = true;
          cropBoxData.width = data.width;
        }

        if (isNumber(data.height) && data.height !== cropBoxData.height) {
          heightChanged = true;
          cropBoxData.height = data.height;
        }

        if (aspectRatio) {
          if (widthChanged) {
            cropBoxData.height = cropBoxData.width / aspectRatio;
          } else if (heightChanged) {
            cropBoxData.width = cropBoxData.height * aspectRatio;
          }
        }

        this.renderCropBox();
      }

      return this;
    },

    /**
     * Get a canvas drawn the cropped image.
     * @param {Object} [options={}] - The config options.
     * @returns {HTMLCanvasElement} - The result canvas.
     */
    getCroppedCanvas: function getCroppedCanvas() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      if (!this.ready || !window.HTMLCanvasElement) {
        return null;
      }

      var canvasData = this.canvasData;
      var source = getSourceCanvas(this.image, this.imageData, canvasData, options); // Returns the source canvas if it is not cropped.

      if (!this.cropped) {
        return source;
      }

      var _this$getData = this.getData(),
          initialX = _this$getData.x,
          initialY = _this$getData.y,
          initialWidth = _this$getData.width,
          initialHeight = _this$getData.height;

      var ratio = source.width / Math.floor(canvasData.naturalWidth);

      if (ratio !== 1) {
        initialX *= ratio;
        initialY *= ratio;
        initialWidth *= ratio;
        initialHeight *= ratio;
      }

      var aspectRatio = initialWidth / initialHeight;
      var maxSizes = getAdjustedSizes({
        aspectRatio: aspectRatio,
        width: options.maxWidth || Infinity,
        height: options.maxHeight || Infinity
      });
      var minSizes = getAdjustedSizes({
        aspectRatio: aspectRatio,
        width: options.minWidth || 0,
        height: options.minHeight || 0
      }, 'cover');

      var _getAdjustedSizes = getAdjustedSizes({
        aspectRatio: aspectRatio,
        width: options.width || (ratio !== 1 ? source.width : initialWidth),
        height: options.height || (ratio !== 1 ? source.height : initialHeight)
      }),
          width = _getAdjustedSizes.width,
          height = _getAdjustedSizes.height;

      width = Math.min(maxSizes.width, Math.max(minSizes.width, width));
      height = Math.min(maxSizes.height, Math.max(minSizes.height, height));
      var canvas = document.createElement('canvas');
      var context = canvas.getContext('2d');
      canvas.width = normalizeDecimalNumber(width);
      canvas.height = normalizeDecimalNumber(height);
      context.fillStyle = options.fillColor || 'transparent';
      context.fillRect(0, 0, width, height);
      var _options$imageSmoothi = options.imageSmoothingEnabled,
          imageSmoothingEnabled = _options$imageSmoothi === void 0 ? true : _options$imageSmoothi,
          imageSmoothingQuality = options.imageSmoothingQuality;
      context.imageSmoothingEnabled = imageSmoothingEnabled;

      if (imageSmoothingQuality) {
        context.imageSmoothingQuality = imageSmoothingQuality;
      } // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage


      var sourceWidth = source.width;
      var sourceHeight = source.height; // Source canvas parameters

      var srcX = initialX;
      var srcY = initialY;
      var srcWidth;
      var srcHeight; // Destination canvas parameters

      var dstX;
      var dstY;
      var dstWidth;
      var dstHeight;

      if (srcX <= -initialWidth || srcX > sourceWidth) {
        srcX = 0;
        srcWidth = 0;
        dstX = 0;
        dstWidth = 0;
      } else if (srcX <= 0) {
        dstX = -srcX;
        srcX = 0;
        srcWidth = Math.min(sourceWidth, initialWidth + srcX);
        dstWidth = srcWidth;
      } else if (srcX <= sourceWidth) {
        dstX = 0;
        srcWidth = Math.min(initialWidth, sourceWidth - srcX);
        dstWidth = srcWidth;
      }

      if (srcWidth <= 0 || srcY <= -initialHeight || srcY > sourceHeight) {
        srcY = 0;
        srcHeight = 0;
        dstY = 0;
        dstHeight = 0;
      } else if (srcY <= 0) {
        dstY = -srcY;
        srcY = 0;
        srcHeight = Math.min(sourceHeight, initialHeight + srcY);
        dstHeight = srcHeight;
      } else if (srcY <= sourceHeight) {
        dstY = 0;
        srcHeight = Math.min(initialHeight, sourceHeight - srcY);
        dstHeight = srcHeight;
      }

      var params = [srcX, srcY, srcWidth, srcHeight]; // Avoid "IndexSizeError"

      if (dstWidth > 0 && dstHeight > 0) {
        var scale = width / initialWidth;
        params.push(dstX * scale, dstY * scale, dstWidth * scale, dstHeight * scale);
      } // All the numerical parameters should be integer for `drawImage`
      // https://github.com/fengyuanchen/cropper/issues/476


      context.drawImage.apply(context, [source].concat(_toConsumableArray(params.map(function (param) {
        return Math.floor(normalizeDecimalNumber(param));
      }))));
      return canvas;
    },

    /**
     * Change the aspect ratio of the crop box.
     * @param {number} aspectRatio - The new aspect ratio.
     * @returns {Cropper} this
     */
    setAspectRatio: function setAspectRatio(aspectRatio) {
      var options = this.options;

      if (!this.disabled && !isUndefined(aspectRatio)) {
        // 0 -> NaN
        options.aspectRatio = Math.max(0, aspectRatio) || NaN;

        if (this.ready) {
          this.initCropBox();

          if (this.cropped) {
            this.renderCropBox();
          }
        }
      }

      return this;
    },

    /**
     * Change the drag mode.
     * @param {string} mode - The new drag mode.
     * @returns {Cropper} this
     */
    setDragMode: function setDragMode(mode) {
      var options = this.options,
          dragBox = this.dragBox,
          face = this.face;

      if (this.ready && !this.disabled) {
        var croppable = mode === DRAG_MODE_CROP;
        var movable = options.movable && mode === DRAG_MODE_MOVE;
        mode = croppable || movable ? mode : DRAG_MODE_NONE;
        options.dragMode = mode;
        setData(dragBox, DATA_ACTION, mode);
        toggleClass(dragBox, CLASS_CROP, croppable);
        toggleClass(dragBox, CLASS_MOVE, movable);

        if (!options.cropBoxMovable) {
          // Sync drag mode to crop box when it is not movable
          setData(face, DATA_ACTION, mode);
          toggleClass(face, CLASS_CROP, croppable);
          toggleClass(face, CLASS_MOVE, movable);
        }
      }

      return this;
    }
  };

  var AnotherCropper = WINDOW.Cropper;

  var Cropper =
  /*#__PURE__*/
  function () {
    /**
     * Create a new Cropper.
     * @param {Element} element - The target element for cropping.
     * @param {Object} [options={}] - The configuration options.
     */
    function Cropper(element) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      _classCallCheck(this, Cropper);

      if (!element || !REGEXP_TAG_NAME.test(element.tagName)) {
        throw new Error('The first argument is required and must be an <img> or <canvas> element.');
      }

      this.element = element;
      this.options = assign({}, DEFAULTS, isPlainObject(options) && options);
      this.cropped = false;
      this.disabled = false;
      this.pointers = {};
      this.ready = false;
      this.reloading = false;
      this.replaced = false;
      this.sized = false;
      this.sizing = false;
      this.init();
    }

    _createClass(Cropper, [{
      key: "init",
      value: function init() {
        var element = this.element;
        var tagName = element.tagName.toLowerCase();
        var url;

        if (element[NAMESPACE]) {
          return;
        }

        element[NAMESPACE] = this;

        if (tagName === 'img') {
          this.isImg = true; // e.g.: "img/picture.jpg"

          url = element.getAttribute('src') || '';
          this.originalUrl = url; // Stop when it's a blank image

          if (!url) {
            return;
          } // e.g.: "http://example.com/img/picture.jpg"


          url = element.src;
        } else if (tagName === 'canvas' && window.HTMLCanvasElement) {
          url = element.toDataURL();
        }

        this.load(url);
      }
    }, {
      key: "load",
      value: function load(url) {
        var _this = this;

        if (!url) {
          return;
        }

        this.url = url;
        this.imageData = {};
        var element = this.element,
            options = this.options;

        if (!options.rotatable && !options.scalable) {
          options.checkOrientation = false;
        } // Only IE10+ supports Typed Arrays


        if (!options.checkOrientation || !window.ArrayBuffer) {
          this.clone();
          return;
        } // Detect the mime type of the image directly if it is a Data URL


        if (REGEXP_DATA_URL.test(url)) {
          // Read ArrayBuffer from Data URL of JPEG images directly for better performance
          if (REGEXP_DATA_URL_JPEG.test(url)) {
            this.read(dataURLToArrayBuffer(url));
          } else {
            // Only a JPEG image may contains Exif Orientation information,
            // the rest types of Data URLs are not necessary to check orientation at all.
            this.clone();
          }

          return;
        } // 1. Detect the mime type of the image by a XMLHttpRequest.
        // 2. Load the image as ArrayBuffer for reading orientation if its a JPEG image.


        var xhr = new XMLHttpRequest();
        var clone = this.clone.bind(this);
        this.reloading = true;
        this.xhr = xhr; // 1. Cross origin requests are only supported for protocol schemes:
        // http, https, data, chrome, chrome-extension.
        // 2. Access to XMLHttpRequest from a Data URL will be blocked by CORS policy
        // in some browsers as IE11 and Safari.

        xhr.onabort = clone;
        xhr.onerror = clone;
        xhr.ontimeout = clone;

        xhr.onprogress = function () {
          // Abort the request directly if it not a JPEG image for better performance
          if (xhr.getResponseHeader('content-type') !== MIME_TYPE_JPEG) {
            xhr.abort();
          }
        };

        xhr.onload = function () {
          _this.read(xhr.response);
        };

        xhr.onloadend = function () {
          _this.reloading = false;
          _this.xhr = null;
        }; // Bust cache when there is a "crossOrigin" property to avoid browser cache error


        if (options.checkCrossOrigin && isCrossOriginURL(url) && element.crossOrigin) {
          url = addTimestamp(url);
        }

        xhr.open('GET', url);
        xhr.responseType = 'arraybuffer';
        xhr.withCredentials = element.crossOrigin === 'use-credentials';
        xhr.send();
      }
    }, {
      key: "read",
      value: function read(arrayBuffer) {
        var options = this.options,
            imageData = this.imageData; // Reset the orientation value to its default value 1
        // as some iOS browsers will render image with its orientation

        var orientation = resetAndGetOrientation(arrayBuffer);
        var rotate = 0;
        var scaleX = 1;
        var scaleY = 1;

        if (orientation > 1) {
          // Generate a new URL which has the default orientation value
          this.url = arrayBufferToDataURL(arrayBuffer, MIME_TYPE_JPEG);

          var _parseOrientation = parseOrientation(orientation);

          rotate = _parseOrientation.rotate;
          scaleX = _parseOrientation.scaleX;
          scaleY = _parseOrientation.scaleY;
        }

        if (options.rotatable) {
          imageData.rotate = rotate;
        }

        if (options.scalable) {
          imageData.scaleX = scaleX;
          imageData.scaleY = scaleY;
        }

        this.clone();
      }
    }, {
      key: "clone",
      value: function clone() {
        var element = this.element,
            url = this.url;
        var crossOrigin = element.crossOrigin;
        var crossOriginUrl = url;

        if (this.options.checkCrossOrigin && isCrossOriginURL(url)) {
          if (!crossOrigin) {
            crossOrigin = 'anonymous';
          } // Bust cache when there is not a "crossOrigin" property (#519)


          crossOriginUrl = addTimestamp(url);
        }

        this.crossOrigin = crossOrigin;
        this.crossOriginUrl = crossOriginUrl;
        var image = document.createElement('img');

        if (crossOrigin) {
          image.crossOrigin = crossOrigin;
        }

        image.src = crossOriginUrl || url;
        image.alt = element.alt || 'The image to crop';
        this.image = image;
        image.onload = this.start.bind(this);
        image.onerror = this.stop.bind(this);
        addClass(image, CLASS_HIDE);
        element.parentNode.insertBefore(image, element.nextSibling);
      }
    }, {
      key: "start",
      value: function start() {
        var _this2 = this;

        var image = this.image;
        image.onload = null;
        image.onerror = null;
        this.sizing = true; // Match all browsers that use WebKit as the layout engine in iOS devices,
        // such as Safari for iOS, Chrome for iOS, and in-app browsers.

        var isIOSWebKit = WINDOW.navigator && /(?:iPad|iPhone|iPod).*?AppleWebKit/i.test(WINDOW.navigator.userAgent);

        var done = function done(naturalWidth, naturalHeight) {
          assign(_this2.imageData, {
            naturalWidth: naturalWidth,
            naturalHeight: naturalHeight,
            aspectRatio: naturalWidth / naturalHeight
          });
          _this2.sizing = false;
          _this2.sized = true;

          _this2.build();
        }; // Most modern browsers (excepts iOS WebKit)


        if (image.naturalWidth && !isIOSWebKit) {
          done(image.naturalWidth, image.naturalHeight);
          return;
        }

        var sizingImage = document.createElement('img');
        var body = document.body || document.documentElement;
        this.sizingImage = sizingImage;

        sizingImage.onload = function () {
          done(sizingImage.width, sizingImage.height);

          if (!isIOSWebKit) {
            body.removeChild(sizingImage);
          }
        };

        sizingImage.src = image.src; // iOS WebKit will convert the image automatically
        // with its orientation once append it into DOM (#279)

        if (!isIOSWebKit) {
          sizingImage.style.cssText = 'left:0;' + 'max-height:none!important;' + 'max-width:none!important;' + 'min-height:0!important;' + 'min-width:0!important;' + 'opacity:0;' + 'position:absolute;' + 'top:0;' + 'z-index:-1;';
          body.appendChild(sizingImage);
        }
      }
    }, {
      key: "stop",
      value: function stop() {
        var image = this.image;
        image.onload = null;
        image.onerror = null;
        image.parentNode.removeChild(image);
        this.image = null;
      }
    }, {
      key: "build",
      value: function build() {
        if (!this.sized || this.ready) {
          return;
        }

        var element = this.element,
            options = this.options,
            image = this.image; // Create cropper elements

        var container = element.parentNode;
        var template = document.createElement('div');
        template.innerHTML = TEMPLATE;
        var cropper = template.querySelector(".".concat(NAMESPACE, "-container"));
        var canvas = cropper.querySelector(".".concat(NAMESPACE, "-canvas"));
        var dragBox = cropper.querySelector(".".concat(NAMESPACE, "-drag-box"));
        var cropBox = cropper.querySelector(".".concat(NAMESPACE, "-crop-box"));
        var face = cropBox.querySelector(".".concat(NAMESPACE, "-face"));
        this.container = container;
        this.cropper = cropper;
        this.canvas = canvas;
        this.dragBox = dragBox;
        this.cropBox = cropBox;
        this.viewBox = cropper.querySelector(".".concat(NAMESPACE, "-view-box"));
        this.face = face;
        canvas.appendChild(image); // Hide the original image

        addClass(element, CLASS_HIDDEN); // Inserts the cropper after to the current image

        container.insertBefore(cropper, element.nextSibling); // Show the image if is hidden

        if (!this.isImg) {
          removeClass(image, CLASS_HIDE);
        }

        this.initPreview();
        this.bind();
        options.initialAspectRatio = Math.max(0, options.initialAspectRatio) || NaN;
        options.aspectRatio = Math.max(0, options.aspectRatio) || NaN;
        options.viewMode = Math.max(0, Math.min(3, Math.round(options.viewMode))) || 0;
        addClass(cropBox, CLASS_HIDDEN);

        if (!options.guides) {
          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-dashed")), CLASS_HIDDEN);
        }

        if (!options.center) {
          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-center")), CLASS_HIDDEN);
        }

        if (options.background) {
          addClass(cropper, "".concat(NAMESPACE, "-bg"));
        }

        if (!options.highlight) {
          addClass(face, CLASS_INVISIBLE);
        }

        if (options.cropBoxMovable) {
          addClass(face, CLASS_MOVE);
          setData(face, DATA_ACTION, ACTION_ALL);
        }

        if (!options.cropBoxResizable) {
          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-line")), CLASS_HIDDEN);
          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-point")), CLASS_HIDDEN);
        }

        this.render();
        this.ready = true;
        this.setDragMode(options.dragMode);

        if (options.autoCrop) {
          this.crop();
        }

        this.setData(options.data);

        if (isFunction(options.ready)) {
          addListener(element, EVENT_READY, options.ready, {
            once: true
          });
        }

        dispatchEvent(element, EVENT_READY);
      }
    }, {
      key: "unbuild",
      value: function unbuild() {
        if (!this.ready) {
          return;
        }

        this.ready = false;
        this.unbind();
        this.resetPreview();
        this.cropper.parentNode.removeChild(this.cropper);
        removeClass(this.element, CLASS_HIDDEN);
      }
    }, {
      key: "uncreate",
      value: function uncreate() {
        if (this.ready) {
          this.unbuild();
          this.ready = false;
          this.cropped = false;
        } else if (this.sizing) {
          this.sizingImage.onload = null;
          this.sizing = false;
          this.sized = false;
        } else if (this.reloading) {
          this.xhr.onabort = null;
          this.xhr.abort();
        } else if (this.image) {
          this.stop();
        }
      }
      /**
       * Get the no conflict cropper class.
       * @returns {Cropper} The cropper class.
       */

    }], [{
      key: "noConflict",
      value: function noConflict() {
        window.Cropper = AnotherCropper;
        return Cropper;
      }
      /**
       * Change the default options.
       * @param {Object} options - The new default options.
       */

    }, {
      key: "setDefaults",
      value: function setDefaults(options) {
        assign(DEFAULTS, isPlainObject(options) && options);
      }
    }]);

    return Cropper;
  }();

  assign(Cropper.prototype, render, preview, events, handlers, change, methods);

  if ($.fn) {
    var AnotherCropper$1 = $.fn.cropper;
    var NAMESPACE$1 = 'cropper';

    $.fn.cropper = function jQueryCropper(option) {
      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }

      var result;
      this.each(function (i, element) {
        var $element = $(element);
        var isDestroy = option === 'destroy';
        var cropper = $element.data(NAMESPACE$1);

        if (!cropper) {
          if (isDestroy) {
            return;
          }

          var options = $.extend({}, $element.data(), $.isPlainObject(option) && option);
          cropper = new Cropper(element, options);
          $element.data(NAMESPACE$1, cropper);
        }

        if (typeof option === 'string') {
          var fn = cropper[option];

          if ($.isFunction(fn)) {
            result = fn.apply(cropper, args);

            if (result === cropper) {
              result = undefined;
            }

            if (isDestroy) {
              $element.removeData(NAMESPACE$1);
            }
          }
        }
      });
      return result !== undefined ? result : this;
    };

    $.fn.cropper.Constructor = Cropper;
    $.fn.cropper.setDefaults = Cropper.setDefaults;

    $.fn.cropper.noConflict = function noConflict() {
      $.fn.cropper = AnotherCropper$1;
      return this;
    };
  }

}));