From f645c6f3a57bf5f53bbb2bde362b2447f725c977 Mon Sep 17 00:00:00 2001
From: Mario <mario@mariovavti.com>
Date: Sat, 11 Jan 2020 10:30:12 +0000
Subject: update cropperjs to the recent version

---
 library/cropperjs/dist/cropper.common.js | 2022 +++++-----
 library/cropperjs/dist/cropper.css       |   44 +-
 library/cropperjs/dist/cropper.esm.js    | 2022 +++++-----
 library/cropperjs/dist/cropper.js        | 6126 +++++++++++++++---------------
 library/cropperjs/dist/cropper.min.css   |   10 +-
 library/cropperjs/dist/cropper.min.js    |   10 +-
 6 files changed, 4891 insertions(+), 5343 deletions(-)

(limited to 'library/cropperjs/dist')

diff --git a/library/cropperjs/dist/cropper.common.js b/library/cropperjs/dist/cropper.common.js
index 38c62e824..84cd77cdd 100644
--- a/library/cropperjs/dist/cropper.common.js
+++ b/library/cropperjs/dist/cropper.common.js
@@ -1,19 +1,126 @@
 /*!
- * Cropper.js v1.2.2
- * https://github.com/fengyuanchen/cropperjs
+ * Cropper.js v1.5.6
+ * https://fengyuanchen.github.io/cropperjs
  *
- * Copyright (c) 2015-2018 Chen Fengyuan
+ * Copyright 2015-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-01-03T13:27:18.062Z
+ * Date: 2019-10-04T04:33:48.372Z
  */
 
 'use strict';
 
-var WINDOW = typeof window !== 'undefined' ? window : {};
-var NAMESPACE = 'cropper';
+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
 
-// Actions
 var ACTION_ALL = 'all';
 var ACTION_CROP = 'crop';
 var ACTION_MOVE = 'move';
@@ -25,127 +132,107 @@ 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 = NAMESPACE + '-crop';
-var CLASS_DISABLED = NAMESPACE + '-disabled';
-var CLASS_HIDDEN = NAMESPACE + '-hidden';
-var CLASS_HIDE = NAMESPACE + '-hide';
-var CLASS_INVISIBLE = NAMESPACE + '-invisible';
-var CLASS_MODAL = NAMESPACE + '-modal';
-var CLASS_MOVE = NAMESPACE + '-move';
-
-// Data keys
-var DATA_ACTION = 'action';
-var DATA_PREVIEW = 'preview';
-
-// Drag modes
+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';
+var DRAG_MODE_NONE = 'none'; // Events
 
-// 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_ERROR = 'error';
-var EVENT_LOAD = 'load';
-var EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown' : 'touchstart mousedown';
-var EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove' : 'touchmove mousemove';
-var EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';
+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 mousewheel DOMMouseScroll';
-var EVENT_ZOOM = 'zoom';
+var EVENT_WHEEL = 'wheel';
+var EVENT_ZOOM = 'zoom'; // Mime types
 
-// RegExps
-var REGEXP_ACTIONS = /^(e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
+var MIME_TYPE_JPEG = 'image/jpeg'; // RegExps
+
+var REGEXP_ACTIONS = /^e|w|s|n|se|sw|ne|nw|all|crop|move|zoom$/;
 var REGEXP_DATA_URL = /^data:/;
 var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
-var REGEXP_TAG_NAME = /^(img|canvas)$/i;
+var REGEXP_TAG_NAME = /^img|canvas$/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: 0, // 0, 1, 2, 3
-
+  viewMode: 0,
+  // 0, 1, 2, 3
   // Define the dragging mode of the cropper
-  dragMode: DRAG_MODE_CROP, // 'crop', 'move' or 'none'
-
+  dragMode: DRAG_MODE_CROP,
+  // 'crop', 'move' or 'none'
+  // Define the initial aspect ratio of the crop box
+  initialAspectRatio: NaN,
   // Define the aspect ratio of the crop box
   aspectRatio: NaN,
-
   // 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: true,
-
   // Show the dashed lines for guiding
   guides: true,
-
   // Show the center indicator for guiding
   center: true,
-
   // Show the white modal to highlight the crop box
   highlight: true,
-
   // Show the grid background
   background: true,
-
   // 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: true,
-
   // Enable to resize the crop box
   cropBoxResizable: true,
-
   // Toggle drag mode between "crop" and "move" when click twice on the cropper
   toggleDragModeOnDblclick: true,
-
   // Size limitation
   minCanvasWidth: 0,
   minCanvasHeight: 0,
@@ -153,7 +240,6 @@ var DEFAULTS = {
   minCropBoxHeight: 0,
   minContainerWidth: 200,
   minContainerHeight: 100,
-
   // Shortcuts of events
   ready: null,
   cropstart: null,
@@ -163,132 +249,50 @@ var DEFAULTS = {
   zoom: null
 };
 
-var TEMPLATE = '<div class="cropper-container">' + '<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-action="e"></span>' + '<span class="cropper-line line-n" data-action="n"></span>' + '<span class="cropper-line line-w" data-action="w"></span>' + '<span class="cropper-line line-s" data-action="s"></span>' + '<span class="cropper-point point-e" data-action="e"></span>' + '<span class="cropper-point point-n" data-action="n"></span>' + '<span class="cropper-point point-w" data-action="w"></span>' + '<span class="cropper-point point-s" data-action="s"></span>' + '<span class="cropper-point point-ne" data-action="ne"></span>' + '<span class="cropper-point point-nw" data-action="nw"></span>' + '<span class="cropper-point point-sw" data-action="sw"></span>' + '<span class="cropper-point point-se" data-action="se"></span>' + '</div>' + '</div>';
-
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
-  return typeof obj;
-} : function (obj) {
-  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
-};
-
-
-
-
-
-
-
-
-
-
-
-var classCallCheck = function (instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError("Cannot call a class as a function");
-  }
-};
-
-var createClass = function () {
-  function defineProperties(target, props) {
-    for (var i = 0; i < props.length; i++) {
-      var descriptor = props[i];
-      descriptor.enumerable = descriptor.enumerable || false;
-      descriptor.configurable = true;
-      if ("value" in descriptor) descriptor.writable = true;
-      Object.defineProperty(target, descriptor.key, descriptor);
-    }
-  }
-
-  return function (Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps);
-    if (staticProps) defineProperties(Constructor, staticProps);
-    return Constructor;
-  };
-}();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-var toConsumableArray = function (arr) {
-  if (Array.isArray(arr)) {
-    for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
-
-    return arr2;
-  } else {
-    return Array.from(arr);
-  }
-};
+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;
 
+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 === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value !== null;
+  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.
@@ -303,41 +307,45 @@ function isPlainObject(value) {
   try {
     var _constructor = value.constructor;
     var prototype = _constructor.prototype;
-
-
     return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
-  } catch (e) {
+  } 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 each(data, callback) {
-  if (data && isFunction(callback)) {
-    if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
-        var length = data.length;
-
-        var i = void 0;
 
-        for (i = 0; i < length; i += 1) {
-          if (callback.call(data, data[i], i, data) === false) {
-            break;
-          }
-        }
+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);
@@ -347,112 +355,83 @@ function each(data, callback) {
 
   return data;
 }
-
 /**
  * Extend the given object.
- * @param {*} obj - The object to be extended.
- * @param {*} args - The rest objects which will be merged to the first object.
+ * @param {*} target - The target object to extend.
+ * @param {*} args - The rest objects for merging to the target object.
  * @returns {Object} The extended object.
  */
-function extend(obj) {
-  for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+
+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(obj) && args.length > 0) {
-    if (Object.assign) {
-      return Object.assign.apply(Object, [obj].concat(args));
-    }
-
+  if (isObject(target) && args.length > 0) {
     args.forEach(function (arg) {
       if (isObject(arg)) {
         Object.keys(arg).forEach(function (key) {
-          obj[key] = arg[key];
+          target[key] = arg[key];
         });
       }
     });
   }
 
-  return obj;
-}
-
-/**
- * Takes a function and returns a new one that will always have a particular context.
- * @param {Function} fn - The target function.
- * @param {Object} context - The new context for the function.
- * @returns {boolean} The new function.
- */
-function proxy(fn, context) {
-  for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
-    args[_key2 - 2] = arguments[_key2];
-  }
-
-  return function () {
-    for (var _len3 = arguments.length, args2 = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
-      args2[_key3] = arguments[_key3];
-    }
-
-    return fn.apply(context, args.concat(args2));
-  };
-}
-
-var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/i;
-
+  return target;
+};
+var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/;
 /**
  * Normalize decimal number.
- * Check out {@link http://0.30000000000000004.com/ }
+ * 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)$/;
-
+var REGEXP_SUFFIX = /^width|height|left|top|marginLeft|marginTop$/;
 /**
  * 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;
-
-
-  each(styles, function (value, property) {
+  forEach(styles, function (value, property) {
     if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
-      value += 'px';
+      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)) {
-    each(element, function (elem) {
+    forEach(element, function (elem) {
       addClass(elem, value);
     });
     return;
@@ -468,22 +447,22 @@ function addClass(element, value) {
   if (!className) {
     element.className = value;
   } else if (className.indexOf(value) < 0) {
-    element.className = className + ' ' + value;
+    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)) {
-    each(element, function (elem) {
+    forEach(element, function (elem) {
       removeClass(elem, value);
     });
     return;
@@ -498,102 +477,131 @@ function removeClass(element, value) {
     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)) {
-    each(element, function (elem) {
+    forEach(element, function (elem) {
       toggleClass(elem, value, added);
     });
     return;
-  }
+  } // IE10-11 doesn't support the second parameter of `classList.toggle`
+
 
-  // IE10-11 doesn't support the second parameter of `classList.toggle`
   if (added) {
     addClass(element, value);
   } else {
     removeClass(element, value);
   }
 }
-
-var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;
-
+var REGEXP_CAMEL_CASE = /([a-z\d])([A-Z])/g;
 /**
- * Hyphenate the given value.
- * @param {string} value - The value to hyphenate.
- * @returns {string} The hyphenated value.
+ * Transform the given string from camelCase to kebab-case
+ * @param {string} value - The value to transform.
+ * @returns {string} The transformed value.
  */
-function hyphenate(value) {
-  return value.replace(REGEXP_HYPHENATE, '$1-$2').toLowerCase();
-}
 
+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];
-  } else if (element.dataset) {
+  }
+
+  if (element.dataset) {
     return element.dataset[name];
   }
 
-  return element.getAttribute('data-' + hyphenate(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-' + hyphenate(name), data);
+    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 (e) {
-      element[name] = null;
+    } catch (error) {
+      element[name] = undefined;
     }
   } else if (element.dataset) {
     // #128 Safari not allows to delete dataset property
     try {
       delete element.dataset[name];
-    } catch (e) {
-      element.dataset[name] = null;
+    } catch (error) {
+      element.dataset[name] = undefined;
     }
   } else {
-    element.removeAttribute('data-' + hyphenate(name));
+    element.removeAttribute("data-".concat(toParamCase(name)));
   }
 }
+var REGEXP_SPACES = /\s\s*/;
 
-var REGEXP_SPACES = /\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.
@@ -601,29 +609,32 @@ var REGEXP_SPACES = /\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 (!isFunction(listener)) {
-    return;
-  }
+      if (listeners && listeners[event] && listeners[event][listener]) {
+        handler = listeners[event][listener];
+        delete listeners[event][listener];
 
-  var types = type.trim().split(REGEXP_SPACES);
+        if (Object.keys(listeners[event]).length === 0) {
+          delete listeners[event];
+        }
 
-  if (types.length > 1) {
-    each(types, function (t) {
-      removeListener(element, t, listener, options);
-    });
-    return;
-  }
+        if (Object.keys(listeners).length === 0) {
+          delete element.listeners;
+        }
+      }
+    }
 
-  if (element.removeEventListener) {
-    element.removeEventListener(type, listener, options);
-  } else if (element.detachEvent) {
-    element.detachEvent('on' + type, listener);
-  }
+    element.removeEventListener(event, handler, options);
+  });
 }
-
 /**
  * Add event listener to the target element.
  * @param {Element} element - The event target.
@@ -631,42 +642,41 @@ function removeListener(element, type, listener) {
  * @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] : {};
-
-  if (!isFunction(_listener)) {
-    return;
-  }
 
-  var types = type.trim().split(REGEXP_SPACES);
+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];
+        }
 
-  if (types.length > 1) {
-    each(types, function (t) {
-      addListener(element, t, _listener, options);
-    });
-    return;
-  }
+        listener.apply(element, args);
+      };
 
-  if (options.once) {
-    var originalListener = _listener;
+      if (!listeners[event]) {
+        listeners[event] = {};
+      }
 
-    _listener = function listener() {
-      for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
-        args[_key4] = arguments[_key4];
+      if (listeners[event][listener]) {
+        element.removeEventListener(event, listeners[event][listener], options);
       }
 
-      removeListener(element, type, _listener, options);
-      return originalListener.apply(element, args);
-    };
-  }
+      listeners[event][listener] = _handler;
+      element.listeners = listeners;
+    }
 
-  if (element.addEventListener) {
-    element.addEventListener(type, _listener, options);
-  } else if (element.attachEvent) {
-    element.attachEvent('on' + type, _listener);
-  }
+    element.addEventListener(event, _handler, options);
+  });
 }
-
 /**
  * Dispatch event on the target element.
  * @param {Element} element - The event target.
@@ -674,187 +684,113 @@ function addListener(element, type, _listener) {
  * @param {Object} data - The additional event data.
  * @returns {boolean} Indicate if the event is default prevented or not.
  */
+
 function dispatchEvent(element, type, data) {
-  if (element.dispatchEvent) {
-    var event = void 0;
-
-    // Event and CustomEvent on IE9-11 are global objects, not constructors
-    if (isFunction(Event) && isFunction(CustomEvent)) {
-      if (isUndefined(data)) {
-        event = new Event(type, {
-          bubbles: true,
-          cancelable: true
-        });
-      } else {
-        event = new CustomEvent(type, {
-          detail: data,
-          bubbles: true,
-          cancelable: true
-        });
-      }
-    } else if (isUndefined(data)) {
-      event = document.createEvent('Event');
-      event.initEvent(type, true, true);
-    } else {
-      event = document.createEvent('CustomEvent');
-      event.initCustomEvent(type, true, true, data);
-    }
+  var event; // Event and CustomEvent on IE9-11 are global objects, not constructors
 
-    // IE9+
-    return element.dispatchEvent(event);
-  } else if (element.fireEvent) {
-    // IE6-10 (native events only)
-    return element.fireEvent('on' + type);
+  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 true;
+  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 doc = document.documentElement;
   var box = element.getBoundingClientRect();
-
   return {
-    left: box.left + ((window.scrollX || doc && doc.scrollLeft || 0) - (doc && doc.clientLeft || 0)),
-    top: box.top + ((window.scrollY || doc && doc.scrollTop || 0) - (doc && doc.clientTop || 0))
+    left: box.left + (window.pageXOffset - document.documentElement.clientLeft),
+    top: box.top + (window.pageYOffset - document.documentElement.clientTop)
   };
 }
-
-/**
- * Empty an element.
- * @param {Element} element - The element to empty.
- */
-function empty(element) {
-  while (element.firstChild) {
-    element.removeChild(element.firstChild);
-  }
-}
-
 var location = WINDOW.location;
-
-var REGEXP_ORIGINS = /^(https?:)\/\/([^:/?#]+):?(\d*)/i;
-
+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 && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
+  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=' + new Date().getTime();
 
+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(' + translateX + 'px)');
+    values.push("translateX(".concat(translateX, "px)"));
   }
 
   if (isNumber(translateY) && translateY !== 0) {
-    values.push('translateY(' + translateY + 'px)');
-  }
+    values.push("translateY(".concat(translateY, "px)"));
+  } // Rotate should come first before scale to match orientation transform
+
 
-  // Rotate should come first before scale to match orientation transform
   if (isNumber(rotate) && rotate !== 0) {
-    values.push('rotate(' + rotate + 'deg)');
+    values.push("rotate(".concat(rotate, "deg)"));
   }
 
   if (isNumber(scaleX) && scaleX !== 1) {
-    values.push('scaleX(' + scaleX + ')');
+    values.push("scaleX(".concat(scaleX, ")"));
   }
 
   if (isNumber(scaleY) && scaleY !== 1) {
-    values.push('scaleY(' + scaleY + ')');
+    values.push("scaleY(".concat(scaleY, ")"));
   }
 
   var transform = values.length ? values.join(' ') : 'none';
-
   return {
     WebkitTransform: transform,
     msTransform: transform,
     transform: transform
   };
 }
-
-var navigator = WINDOW.navigator;
-
-var IS_SAFARI_OR_UIWEBVIEW = navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(navigator.userAgent);
-
-/**
- * Get an image's natural sizes.
- * @param {string} image - The target image.
- * @param {Function} callback - The callback function.
- */
-function getImageNaturalSizes(image, callback) {
-  // Modern browsers (except Safari)
-  if (image.naturalWidth && !IS_SAFARI_OR_UIWEBVIEW) {
-    callback(image.naturalWidth, image.naturalHeight);
-    return;
-  }
-
-  var newImage = document.createElement('img');
-  var body = document.body || document.documentElement;
-
-  newImage.onload = function () {
-    callback(newImage.width, newImage.height);
-
-    if (!IS_SAFARI_OR_UIWEBVIEW) {
-      body.removeChild(newImage);
-    }
-  };
-
-  newImage.src = image.src;
-
-  // iOS Safari will convert the image automatically
-  // with its orientation once append it into DOM (#279)
-  if (!IS_SAFARI_OR_UIWEBVIEW) {
-    newImage.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(newImage);
-  }
-}
-
 /**
  * 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 = extend({}, pointers);
-  var ratios = [];
+  var pointers2 = _objectSpread2({}, pointers);
 
-  each(pointers, function (pointer, pointerId) {
+  var ratios = [];
+  forEach(pointers, function (pointer, pointerId) {
     delete pointers2[pointerId];
-
-    each(pointers2, function (pointer2) {
+    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);
@@ -862,99 +798,84 @@ function getMaxZoomRatio(pointers) {
       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
   };
-
-  if (endOnly) {
-    return end;
-  }
-
-  return extend({
+  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;
-
-  each(pointers, function (_ref3) {
+  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
   };
 }
-
-/**
- * Check if the given value is a finite number.
- */
-var isFinite = Number.isFinite || WINDOW.isFinite;
-
 /**
  * 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 getContainSizes(_ref4) {
+
+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);
 
-  var isValidNumber = function isValidNumber(value) {
-    return isFinite(value) && value > 0;
-  };
+  if (isValidWidth && isValidHeight) {
+    var adjustedWidth = height * aspectRatio;
 
-  if (isValidNumber(width) && isValidNumber(height)) {
-    if (height * aspectRatio > width) {
+    if (type === 'contain' && adjustedWidth > width || type === 'cover' && adjustedWidth < width) {
       height = width / aspectRatio;
     } else {
       width = height * aspectRatio;
     }
-  } else if (isValidNumber(width)) {
+  } else if (isValidWidth) {
     height = width / aspectRatio;
-  } else if (isValidNumber(height)) {
+  } else if (isValidHeight) {
     width = height * aspectRatio;
   }
 
@@ -963,17 +884,16 @@ function getContainSizes(_ref4) {
     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) {
@@ -988,7 +908,6 @@ function getRotatedSizes(_ref5) {
   var cosArc = Math.cos(arc);
   var newWidth = width * cosArc + height * sinArc;
   var newHeight = width * sinArc + height * cosArc;
-
   return degree > 90 ? {
     width: newHeight,
     height: newWidth
@@ -997,7 +916,6 @@ function getRotatedSizes(_ref5) {
     height: newHeight
   };
 }
-
 /**
  * Get a canvas which drew the given image.
  * @param {HTMLImageElement} image - The image for drawing.
@@ -1006,49 +924,63 @@ function getRotatedSizes(_ref5) {
  * @param {Object} options - The options.
  * @returns {HTMLCanvasElement} The result canvas.
  */
+
 function getSourceCanvas(image, _ref6, _ref7, _ref8) {
-  var imageNaturalWidth = _ref6.naturalWidth,
+  var imageAspectRatio = _ref6.aspectRatio,
+      imageNaturalWidth = _ref6.naturalWidth,
       imageNaturalHeight = _ref6.naturalHeight,
       _ref6$rotate = _ref6.rotate,
-      rotate = _ref6$rotate === undefined ? 0 : _ref6$rotate,
+      rotate = _ref6$rotate === void 0 ? 0 : _ref6$rotate,
       _ref6$scaleX = _ref6.scaleX,
-      scaleX = _ref6$scaleX === undefined ? 1 : _ref6$scaleX,
+      scaleX = _ref6$scaleX === void 0 ? 1 : _ref6$scaleX,
       _ref6$scaleY = _ref6.scaleY,
-      scaleY = _ref6$scaleY === undefined ? 1 : _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$fillColor === undefined ? 'transparent' : _ref8$fillColor,
+      fillColor = _ref8$fillColor === void 0 ? 'transparent' : _ref8$fillColor,
       _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,
-      imageSmoothingEnabled = _ref8$imageSmoothingE === undefined ? true : _ref8$imageSmoothingE,
+      imageSmoothingEnabled = _ref8$imageSmoothingE === void 0 ? true : _ref8$imageSmoothingE,
       _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,
-      imageSmoothingQuality = _ref8$imageSmoothingQ === undefined ? 'low' : _ref8$imageSmoothingQ,
+      imageSmoothingQuality = _ref8$imageSmoothingQ === void 0 ? 'low' : _ref8$imageSmoothingQ,
       _ref8$maxWidth = _ref8.maxWidth,
-      maxWidth = _ref8$maxWidth === undefined ? Infinity : _ref8$maxWidth,
+      maxWidth = _ref8$maxWidth === void 0 ? Infinity : _ref8$maxWidth,
       _ref8$maxHeight = _ref8.maxHeight,
-      maxHeight = _ref8$maxHeight === undefined ? Infinity : _ref8$maxHeight,
+      maxHeight = _ref8$maxHeight === void 0 ? Infinity : _ref8$maxHeight,
       _ref8$minWidth = _ref8.minWidth,
-      minWidth = _ref8$minWidth === undefined ? 0 : _ref8$minWidth,
+      minWidth = _ref8$minWidth === void 0 ? 0 : _ref8$minWidth,
       _ref8$minHeight = _ref8.minHeight,
-      minHeight = _ref8$minHeight === undefined ? 0 : _ref8$minHeight;
-
+      minHeight = _ref8$minHeight === void 0 ? 0 : _ref8$minHeight;
   var canvas = document.createElement('canvas');
   var context = canvas.getContext('2d');
-  var maxSizes = getContainSizes({
+  var maxSizes = getAdjustedSizes({
     aspectRatio: aspectRatio,
     width: maxWidth,
     height: maxHeight
   });
-  var minSizes = getContainSizes({
+  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));
-  var params = [-imageNaturalWidth / 2, -imageNaturalHeight / 2, imageNaturalWidth, imageNaturalHeight];
+  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;
@@ -1059,15 +991,13 @@ function getSourceCanvas(image, _ref6, _ref7, _ref8) {
   context.scale(scaleX, scaleY);
   context.imageSmoothingEnabled = imageSmoothingEnabled;
   context.imageSmoothingQuality = imageSmoothingQuality;
-  context.drawImage.apply(context, [image].concat(toConsumableArray(params.map(function (param) {
+  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.
@@ -1078,133 +1008,139 @@ var fromCharCode = String.fromCharCode;
 
 function getStringFromCharCode(dataView, start, length) {
   var str = '';
-  var i = void 0;
-
   length += start;
 
-  for (i = start; i < length; i += 1) {
+  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);
-
-  each(uint8, function (value, i) {
+  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);
-  var data = '';
 
-  // TypedArray.prototype.forEach is not supported in some browsers.
-  each(uint8, function (value) {
-    data += fromCharCode(value);
-  });
+  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:' + mimeType + ';base64,' + btoa(data);
+  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 getOrientation(arrayBuffer) {
+
+function resetAndGetOrientation(arrayBuffer) {
   var dataView = new DataView(arrayBuffer);
-  var orientation = void 0;
-  var littleEndian = void 0;
-  var app1Start = void 0;
-  var ifdStart = void 0;
-
-  // 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 < length) {
-      if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
-        app1Start = offset;
-        break;
-      }
+  var orientation; // Ignores range error when the image does not have correct Exif information
 
-      offset += 1;
-    }
-  }
+  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;
 
-  if (app1Start) {
-    var exifIDCode = app1Start + 4;
-    var tiffOffset = app1Start + 10;
+      while (offset + 1 < length) {
+        if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
+          app1Start = offset;
+          break;
+        }
+
+        offset += 1;
+      }
+    }
 
-    if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
-      var endianness = dataView.getUint16(tiffOffset);
+    if (app1Start) {
+      var exifIDCode = app1Start + 4;
+      var tiffOffset = app1Start + 10;
 
-      littleEndian = endianness === 0x4949;
+      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 (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 (firstIFDOffset >= 0x00000008) {
+                ifdStart = tiffOffset + firstIFDOffset;
+              }
             }
           }
-        }
+      }
     }
-  }
 
-  if (ifdStart) {
-    var _length = dataView.getUint16(ifdStart, littleEndian);
-    var _offset = void 0;
-    var i = void 0;
+    if (ifdStart) {
+      var _length = dataView.getUint16(ifdStart, littleEndian);
 
-    for (i = 0; i < _length; i += 1) {
-      _offset = ifdStart + i * 12 + 2;
+      var _offset;
 
-      if (dataView.getUint16(_offset, littleEndian) === 0x0112 /* Orientation */) {
-          // 8 is the offset of the current tag's value
-          _offset += 8;
+      var i;
 
-          // Get the original orientation value
-          orientation = dataView.getUint16(_offset, littleEndian);
+      for (i = 0; i < _length; i += 1) {
+        _offset = ifdStart + i * 12 + 2;
 
-          // Override the orientation with its default value
-          dataView.setUint16(_offset, 1, littleEndian);
-          break;
-        }
+        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;
@@ -1215,35 +1151,35 @@ function parseOrientation(orientation) {
     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;
@@ -1274,34 +1210,25 @@ var render = {
         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;
@@ -1328,17 +1255,15 @@ var render = {
       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 = extend({}, imageData);
-    this.initialCanvasData = extend({}, canvasData);
+    this.initialImageData = assign({}, imageData);
+    this.initialCanvasData = assign({}, canvasData);
   },
   limitCanvas: function limitCanvas(sizeLimited, positionLimited) {
     var options = this.options,
@@ -1347,7 +1272,6 @@ var render = {
         cropBoxData = this.cropBoxData;
     var viewMode = options.viewMode;
     var aspectRatio = canvasData.aspectRatio;
-
     var cropped = this.cropped && cropBoxData;
 
     if (sizeLimited) {
@@ -1382,16 +1306,14 @@ var render = {
         }
       }
 
-      var _getContainSizes = getContainSizes({
+      var _getAdjustedSizes = getAdjustedSizes({
         aspectRatio: aspectRatio,
         width: minCanvasWidth,
         height: minCanvasHeight
       });
 
-      minCanvasWidth = _getContainSizes.width;
-      minCanvasHeight = _getContainSizes.height;
-
-
+      minCanvasWidth = _getAdjustedSizes.width;
+      minCanvasHeight = _getAdjustedSizes.height;
       canvasData.minWidth = minCanvasWidth;
       canvasData.minHeight = minCanvasHeight;
       canvasData.maxWidth = Infinity;
@@ -1399,10 +1321,9 @@ var render = {
     }
 
     if (positionLimited) {
-      if (viewMode) {
+      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);
@@ -1438,7 +1359,6 @@ var render = {
     var canvasData = this.canvasData,
         imageData = this.imageData;
 
-
     if (transformed) {
       var _getRotatedSizes = getRotatedSizes({
         width: imageData.naturalWidth * Math.abs(imageData.scaleX || 1),
@@ -1450,7 +1370,6 @@ var render = {
 
       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;
@@ -1471,22 +1390,18 @@ var render = {
 
     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, extend({
+    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) {
@@ -1496,20 +1411,18 @@ var render = {
   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);
-
-    extend(imageData, {
+    assign(imageData, {
       width: width,
       height: height,
       left: (canvasData.width - width) / 2,
       top: (canvasData.height - height) / 2
     });
-    setStyle(this.image, extend({
+    setStyle(this.image, assign({
       width: imageData.width,
       height: imageData.height
-    }, getTransforms(extend({
+    }, getTransforms(assign({
       translateX: imageData.left,
       translateY: imageData.top
     }, imageData))));
@@ -1521,8 +1434,7 @@ var render = {
   initCropBox: function initCropBox() {
     var options = this.options,
         canvasData = this.canvasData;
-    var aspectRatio = options.aspectRatio;
-
+    var aspectRatio = options.aspectRatio || options.initialAspectRatio;
     var autoCropArea = Number(options.autoCropArea) || 0.8;
     var cropBoxData = {
       width: canvasData.width,
@@ -1538,21 +1450,18 @@ var render = {
     }
 
     this.cropBoxData = cropBoxData;
-    this.limitCropBox(true, true);
+    this.limitCropBox(true, true); // Initialize auto crop area
 
-    // 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);
+    cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight); // The width/height of auto crop area must large than "minWidth/Height"
 
-    // 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 = extend({}, cropBoxData);
+    this.initialCropBoxData = assign({}, cropBoxData);
   },
   limitCropBox: function limitCropBox(sizeLimited, positionLimited) {
     var options = this.options,
@@ -1562,14 +1471,12 @@ var render = {
         limited = this.limited;
     var aspectRatio = options.aspectRatio;
 
-
     if (sizeLimited) {
       var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
       var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
-      var maxCropBoxWidth = Math.min(containerData.width, limited ? canvasData.width : containerData.width);
-      var maxCropBoxHeight = Math.min(containerData.height, limited ? canvasData.height : containerData.height);
+      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
 
-      // The min/maxCropBoxWidth/Height must be less than container's width/height
       minCropBoxWidth = Math.min(minCropBoxWidth, containerData.width);
       minCropBoxHeight = Math.min(minCropBoxHeight, containerData.height);
 
@@ -1591,9 +1498,9 @@ var render = {
         } else {
           maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
         }
-      }
+      } // The minWidth/Height must be less than maxWidth/Height
+
 
-      // The minWidth/Height must be less than maxWidth/Height
       cropBoxData.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
       cropBoxData.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
       cropBoxData.maxWidth = maxCropBoxWidth;
@@ -1619,7 +1526,6 @@ var render = {
         containerData = this.containerData,
         cropBoxData = this.cropBoxData;
 
-
     if (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
       cropBoxData.left = cropBoxData.oldLeft;
     }
@@ -1630,9 +1536,7 @@ var render = {
 
     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;
@@ -1643,7 +1547,7 @@ var render = {
       setData(this.face, DATA_ACTION, cropBoxData.width >= containerData.width && cropBoxData.height >= containerData.height ? ACTION_MOVE : ACTION_ALL);
     }
 
-    setStyle(this.cropBox, extend({
+    setStyle(this.cropBox, assign({
       width: cropBoxData.width,
       height: cropBoxData.height
     }, getTransforms({
@@ -1661,19 +1565,17 @@ var render = {
   },
   output: function output() {
     this.preview();
-
-    if (this.complete) {
-      dispatchEvent(this.element, EVENT_CROP, this.getData());
-    }
+    dispatchEvent(this.element, EVENT_CROP, this.getData());
   }
 };
 
 var preview = {
   initPreview: function initPreview() {
-    var crossOrigin = this.crossOrigin;
+    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) {
@@ -1681,25 +1583,30 @@ var preview = {
     }
 
     image.src = url;
+    image.alt = alt;
     this.viewBox.appendChild(image);
-    this.image2 = image;
+    this.viewBoxImage = image;
 
     if (!preview) {
       return;
     }
 
-    var previews = preview.querySelector ? [preview] : document.querySelectorAll(preview);
+    var previews = preview;
 
-    this.previews = previews;
+    if (typeof preview === 'string') {
+      previews = element.ownerDocument.querySelectorAll(preview);
+    } else if (preview.querySelector) {
+      previews = [preview];
+    }
 
-    each(previews, function (element) {
-      var img = document.createElement('img');
+    this.previews = previews;
+    forEach(previews, function (el) {
+      var img = document.createElement('img'); // Save the original size for recover
 
-      // Save the original size for recover
-      setData(element, DATA_PREVIEW, {
-        width: element.offsetWidth,
-        height: element.offsetHeight,
-        html: element.innerHTML
+      setData(el, DATA_PREVIEW, {
+        width: el.offsetWidth,
+        height: el.offsetHeight,
+        html: el.innerHTML
       });
 
       if (crossOrigin) {
@@ -1707,28 +1614,26 @@ var preview = {
       }
 
       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;"';
 
-      empty(element);
-      element.appendChild(img);
+      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() {
-    each(this.previews, function (element) {
+    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);
     });
@@ -1741,7 +1646,6 @@ var preview = {
         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;
 
@@ -1749,15 +1653,14 @@ var preview = {
       return;
     }
 
-    setStyle(this.image2, extend({
+    setStyle(this.viewBoxImage, assign({
       width: width,
       height: height
-    }, getTransforms(extend({
+    }, getTransforms(assign({
       translateX: -left,
       translateY: -top
     }, imageData))));
-
-    each(this.previews, function (element) {
+    forEach(this.previews, function (element) {
       var data = getData(element, DATA_PREVIEW);
       var originalWidth = data.width;
       var originalHeight = data.height;
@@ -1780,11 +1683,10 @@ var preview = {
         width: newWidth,
         height: newHeight
       });
-
-      setStyle(element.getElementsByTagName('img')[0], extend({
+      setStyle(element.getElementsByTagName('img')[0], assign({
         width: width * ratio,
         height: height * ratio
-      }, getTransforms(extend({
+      }, getTransforms(assign({
         translateX: -left * ratio,
         translateY: -top * ratio
       }, imageData))));
@@ -1798,7 +1700,6 @@ var events = {
         options = this.options,
         cropper = this.cropper;
 
-
     if (isFunction(options.cropstart)) {
       addListener(element, EVENT_CROP_START, options.cropstart);
     }
@@ -1819,21 +1720,24 @@ var events = {
       addListener(element, EVENT_ZOOM, options.zoom);
     }
 
-    addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = proxy(this.cropStart, this));
+    addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = this.cropStart.bind(this));
 
     if (options.zoomable && options.zoomOnWheel) {
-      addListener(cropper, EVENT_WHEEL, this.onWheel = proxy(this.wheel, this));
+      addListener(cropper, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
+        passive: false,
+        capture: true
+      });
     }
 
     if (options.toggleDragModeOnDblclick) {
-      addListener(cropper, EVENT_DBLCLICK, this.onDblclick = proxy(this.dblclick, this));
+      addListener(cropper, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
     }
 
-    addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove = proxy(this.cropMove, this));
-    addListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd = proxy(this.cropEnd, 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 = proxy(this.resize, this));
+      addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));
     }
   },
   unbind: function unbind() {
@@ -1841,7 +1745,6 @@ var events = {
         options = this.options,
         cropper = this.cropper;
 
-
     if (isFunction(options.cropstart)) {
       removeListener(element, EVENT_CROP_START, options.cropstart);
     }
@@ -1865,7 +1768,10 @@ var events = {
     removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);
 
     if (options.zoomable && options.zoomOnWheel) {
-      removeListener(cropper, EVENT_WHEEL, this.onWheel);
+      removeListener(cropper, EVENT_WHEEL, this.onWheel, {
+        passive: false,
+        capture: true
+      });
     }
 
     if (options.toggleDragModeOnDblclick) {
@@ -1886,20 +1792,18 @@ var handlers = {
     var options = this.options,
         container = this.container,
         containerData = this.containerData;
-
-    var minContainerWidth = Number(options.minContainerWidth) || 200;
-    var minContainerHeight = Number(options.minContainerHeight) || 100;
+    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;
+    var ratio = container.offsetWidth / containerData.width; // Resize when width changed or height changed
 
-    // Resize when width changed or height changed
     if (ratio !== 1 || container.offsetHeight !== containerData.height) {
-      var canvasData = void 0;
-      var cropBoxData = void 0;
+      var canvasData;
+      var cropBoxData;
 
       if (options.restore) {
         canvasData = this.getCanvasData();
@@ -1909,10 +1813,10 @@ var handlers = {
       this.render();
 
       if (options.restore) {
-        this.setCanvasData(each(canvasData, function (n, i) {
+        this.setCanvasData(forEach(canvasData, function (n, i) {
           canvasData[i] = n * ratio;
         }));
-        this.setCropBoxData(each(cropBoxData, function (n, i) {
+        this.setCropBoxData(forEach(cropBoxData, function (n, i) {
           cropBoxData[i] = n * ratio;
         }));
       }
@@ -1925,7 +1829,7 @@ var handlers = {
 
     this.setDragMode(hasClass(this.dragBox, CLASS_CROP) ? DRAG_MODE_MOVE : DRAG_MODE_CROP);
   },
-  wheel: function wheel(e) {
+  wheel: function wheel(event) {
     var _this = this;
 
     var ratio = Number(this.options.wheelZoomRatio) || 0.1;
@@ -1935,53 +1839,56 @@ var handlers = {
       return;
     }
 
-    e.preventDefault();
+    event.preventDefault(); // Limit wheel speed to prevent zoom too fast (#21)
 
-    // Limit wheel speed to prevent zoom too fast (#21)
     if (this.wheeling) {
       return;
     }
 
     this.wheeling = true;
-
     setTimeout(function () {
       _this.wheeling = false;
     }, 50);
 
-    if (e.deltaY) {
-      delta = e.deltaY > 0 ? 1 : -1;
-    } else if (e.wheelDelta) {
-      delta = -e.wheelDelta / 120;
-    } else if (e.detail) {
-      delta = e.detail > 0 ? 1 : -1;
+    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, e);
+    this.zoom(-delta * ratio, event);
   },
-  cropStart: function cropStart(e) {
-    if (this.disabled) {
+  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;
 
-    var action = void 0;
-
-    if (e.changedTouches) {
+    if (event.changedTouches) {
       // Handle touch event
-      each(e.changedTouches, function (touch) {
+      forEach(event.changedTouches, function (touch) {
         pointers[touch.identifier] = getPointer(touch);
       });
     } else {
       // Handle mouse event and pointer event
-      pointers[e.pointerId || 0] = getPointer(e);
+      pointers[event.pointerId || 0] = getPointer(event);
     }
 
     if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
       action = ACTION_ZOOM;
     } else {
-      action = getData(e.target, DATA_ACTION);
+      action = getData(event.target, DATA_ACTION);
     }
 
     if (!REGEXP_ACTIONS.test(action)) {
@@ -1989,14 +1896,14 @@ var handlers = {
     }
 
     if (dispatchEvent(this.element, EVENT_CROP_START, {
-      originalEvent: e,
+      originalEvent: event,
       action: action
     }) === false) {
       return;
-    }
+    } // This line is required for preventing page zooming in iOS browsers
 
-    e.preventDefault();
 
+    event.preventDefault();
     this.action = action;
     this.cropping = false;
 
@@ -2005,37 +1912,35 @@ var handlers = {
       addClass(this.dragBox, CLASS_MODAL);
     }
   },
-  cropMove: function cropMove(e) {
+  cropMove: function cropMove(event) {
     var action = this.action;
 
-
     if (this.disabled || !action) {
       return;
     }
 
     var pointers = this.pointers;
-
-
-    e.preventDefault();
+    event.preventDefault();
 
     if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
-      originalEvent: e,
+      originalEvent: event,
       action: action
     }) === false) {
       return;
     }
 
-    if (e.changedTouches) {
-      each(e.changedTouches, function (touch) {
-        extend(pointers[touch.identifier], getPointer(touch, true));
+    if (event.changedTouches) {
+      forEach(event.changedTouches, function (touch) {
+        // The first parameter should not be undefined (#432)
+        assign(pointers[touch.identifier] || {}, getPointer(touch, true));
       });
     } else {
-      extend(pointers[e.pointerId || 0], getPointer(e, true));
+      assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
     }
 
-    this.change(e);
+    this.change(event);
   },
-  cropEnd: function cropEnd(e) {
+  cropEnd: function cropEnd(event) {
     if (this.disabled) {
       return;
     }
@@ -2043,20 +1948,19 @@ var handlers = {
     var action = this.action,
         pointers = this.pointers;
 
-
-    if (e.changedTouches) {
-      each(e.changedTouches, function (touch) {
+    if (event.changedTouches) {
+      forEach(event.changedTouches, function (touch) {
         delete pointers[touch.identifier];
       });
     } else {
-      delete pointers[e.pointerId || 0];
+      delete pointers[event.pointerId || 0];
     }
 
     if (!action) {
       return;
     }
 
-    e.preventDefault();
+    event.preventDefault();
 
     if (!Object.keys(pointers).length) {
       this.action = '';
@@ -2068,14 +1972,14 @@ var handlers = {
     }
 
     dispatchEvent(this.element, EVENT_CROP_END, {
-      originalEvent: e,
+      originalEvent: event,
       action: action
     });
   }
 };
 
 var change = {
-  change: function change(e) {
+  change: function change(event) {
     var options = this.options,
         canvasData = this.canvasData,
         containerData = this.containerData,
@@ -2087,7 +1991,6 @@ var change = {
         top = cropBoxData.top,
         width = cropBoxData.width,
         height = cropBoxData.height;
-
     var right = left + width;
     var bottom = top + height;
     var minLeft = 0;
@@ -2095,17 +1998,15 @@ var change = {
     var maxWidth = containerData.width;
     var maxHeight = containerData.height;
     var renderable = true;
-    var offset = void 0;
+    var offset; // Locking aspect ratio in "free mode" by holding shift key
 
-    // Locking aspect ratio in "free mode" by holding shift key
-    if (!aspectRatio && e.shiftKey) {
+    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);
     }
@@ -2115,6 +2016,7 @@ var change = {
       x: pointer.endX - pointer.startX,
       y: pointer.endY - pointer.startY
     };
+
     var check = function check(side) {
       switch (side) {
         case ACTION_EAST:
@@ -2155,8 +2057,8 @@ var change = {
         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;
@@ -2166,14 +2068,15 @@ var change = {
         check(ACTION_EAST);
         width += range.x;
 
-        if (aspectRatio) {
-          height = width / aspectRatio;
-          top -= range.x / aspectRatio / 2;
-        }
-
         if (width < 0) {
           action = ACTION_WEST;
-          width = 0;
+          width = -width;
+          left -= width;
+        }
+
+        if (aspectRatio) {
+          height = width / aspectRatio;
+          top += (cropBoxData.height - height) / 2;
         }
 
         break;
@@ -2188,14 +2091,15 @@ var change = {
         height -= range.y;
         top += range.y;
 
-        if (aspectRatio) {
-          width = height * aspectRatio;
-          left += range.y * aspectRatio / 2;
-        }
-
         if (height < 0) {
           action = ACTION_SOUTH;
-          height = 0;
+          height = -height;
+          top -= height;
+        }
+
+        if (aspectRatio) {
+          width = height * aspectRatio;
+          left += (cropBoxData.width - width) / 2;
         }
 
         break;
@@ -2210,14 +2114,15 @@ var change = {
         width -= range.x;
         left += range.x;
 
-        if (aspectRatio) {
-          height = width / aspectRatio;
-          top += range.x / aspectRatio / 2;
-        }
-
         if (width < 0) {
           action = ACTION_EAST;
-          width = 0;
+          width = -width;
+          left -= width;
+        }
+
+        if (aspectRatio) {
+          height = width / aspectRatio;
+          top += (cropBoxData.height - height) / 2;
         }
 
         break;
@@ -2231,14 +2136,15 @@ var change = {
         check(ACTION_SOUTH);
         height += range.y;
 
-        if (aspectRatio) {
-          width = height * aspectRatio;
-          left -= range.y * aspectRatio / 2;
-        }
-
         if (height < 0) {
           action = ACTION_NORTH;
-          height = 0;
+          height = -height;
+          top -= height;
+        }
+
+        if (aspectRatio) {
+          width = height * aspectRatio;
+          left += (cropBoxData.width - width) / 2;
         }
 
         break;
@@ -2281,14 +2187,18 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_SOUTH_WEST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_NORTH_WEST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_SOUTH_EAST;
-          height = 0;
+          height = -height;
+          top -= height;
         }
 
         break;
@@ -2304,7 +2214,7 @@ var change = {
           height -= range.y;
           top += range.y;
           width = height * aspectRatio;
-          left += range.y * aspectRatio;
+          left += cropBoxData.width - width;
         } else {
           check(ACTION_NORTH);
           check(ACTION_WEST);
@@ -2334,14 +2244,18 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_SOUTH_EAST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_NORTH_EAST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_SOUTH_WEST;
-          height = 0;
+          height = -height;
+          top -= height;
         }
 
         break;
@@ -2384,14 +2298,18 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_NORTH_EAST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_SOUTH_EAST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_NORTH_WEST;
-          height = 0;
+          height = -height;
+          top -= height;
         }
 
         break;
@@ -2431,31 +2349,35 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_NORTH_WEST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_SOUTH_WEST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_NORTH_EAST;
-          height = 0;
+          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), e);
+        this.zoom(getMaxZoomRatio(pointers), event);
         renderable = false;
         break;
-
       // Create crop box
+
       case ACTION_CROP:
         if (!range.x || !range.y) {
           renderable = false;
@@ -2477,9 +2399,9 @@ var change = {
 
         if (range.y < 0) {
           top -= height;
-        }
+        } // Show the crop box if is hidden
+
 
-        // Show the crop box if is hidden
         if (!this.cropped) {
           removeClass(this.cropBox, CLASS_HIDDEN);
           this.cropped = true;
@@ -2501,10 +2423,10 @@ var change = {
       cropBoxData.top = top;
       this.action = action;
       this.renderCropBox();
-    }
+    } // Override
 
-    // Override
-    each(pointers, function (p) {
+
+    forEach(pointers, function (p) {
       p.startX = p.endX;
       p.startY = p.endY;
     });
@@ -2514,31 +2436,26 @@ var change = {
 var methods = {
   // Show the crop box manually
   crop: function crop() {
-    if (this.ready && !this.disabled) {
-      if (!this.cropped) {
-        this.cropped = true;
-        this.limitCropBox(true, true);
-
-        if (this.options.modal) {
-          addClass(this.dragBox, CLASS_MODAL);
-        }
+    if (this.ready && !this.cropped && !this.disabled) {
+      this.cropped = true;
+      this.limitCropBox(true, true);
 
-        removeClass(this.cropBox, CLASS_HIDDEN);
+      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 = extend({}, this.initialImageData);
-      this.canvasData = extend({}, this.initialCanvasData);
-      this.cropBoxData = extend({}, this.initialCropBoxData);
+      this.imageData = assign({}, this.initialImageData);
+      this.canvasData = assign({}, this.initialCanvasData);
+      this.cropBoxData = assign({}, this.initialCropBoxData);
       this.renderCanvas();
 
       if (this.cropped) {
@@ -2548,23 +2465,19 @@ var methods = {
 
     return this;
   },
-
-
   // Clear the crop box
   clear: function clear() {
     if (this.cropped && !this.disabled) {
-      extend(this.cropBoxData, {
+      assign(this.cropBoxData, {
         left: 0,
         top: 0,
         width: 0,
         height: 0
       });
-
       this.cropped = false;
       this.renderCropBox();
-      this.limitCanvas(true, true);
+      this.limitCanvas(true, true); // Render canvas after crop box rendered
 
-      // Render canvas after crop box rendered
       this.renderCanvas();
       removeClass(this.dragBox, CLASS_MODAL);
       addClass(this.cropBox, CLASS_HIDDEN);
@@ -2573,29 +2486,27 @@ var methods = {
     return this;
   },
 
-
   /**
    * Replace the image's src and rebuild the cropper
    * @param {string} url - The new URL.
-   * @param {boolean} [onlyColorChanged] - Indicate if the new image only changed color.
-   * @returns {Object} this
+   * @param {boolean} [hasSameSize] - Indicate if the new image has the same size as the old one.
+   * @returns {Cropper} this
    */
   replace: function replace(url) {
-    var onlyColorChanged = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+    var hasSameSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
 
     if (!this.disabled && url) {
       if (this.isImg) {
         this.element.src = url;
       }
 
-      if (onlyColorChanged) {
+      if (hasSameSize) {
         this.url = url;
         this.image.src = url;
 
         if (this.ready) {
-          this.image2.src = url;
-
-          each(this.previews, function (element) {
+          this.viewBoxImage.src = url;
+          forEach(this.previews, function (element) {
             element.getElementsByTagName('img')[0].src = url;
           });
         }
@@ -2604,30 +2515,26 @@ var methods = {
           this.replaced = true;
         }
 
-        // Clear previous data
         this.options.data = null;
+        this.uncreate();
         this.load(url);
       }
     }
 
     return this;
   },
-
-
   // Enable (unfreeze) the cropper
   enable: function enable() {
-    if (this.ready) {
+    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) {
+    if (this.ready && !this.disabled) {
       this.disabled = true;
       addClass(this.cropper, CLASS_DISABLED);
     }
@@ -2635,60 +2542,51 @@ var methods = {
     return this;
   },
 
-
-  // Destroy the cropper and remove the instance from the image
+  /**
+   * Destroy the cropper and remove the instance from the image
+   * @returns {Cropper} this
+   */
   destroy: function destroy() {
-    var element = this.element,
-        image = this.image;
+    var element = this.element;
 
+    if (!element[NAMESPACE]) {
+      return this;
+    }
 
-    if (this.loaded) {
-      if (this.isImg && this.replaced) {
-        element.src = this.originalUrl;
-      }
+    element[NAMESPACE] = undefined;
 
-      this.unbuild();
-      removeClass(element, CLASS_HIDDEN);
-    } else if (this.isImg) {
-      removeListener(element, EVENT_LOAD, this.onStart);
-    } else if (image) {
-      image.parentNode.removeChild(image);
+    if (this.isImg && this.replaced) {
+      element.src = this.originalUrl;
     }
 
-    removeData(element, NAMESPACE);
-
+    this.uncreate();
     return this;
   },
 
-
   /**
    * Move the canvas with relative offsets
    * @param {number} offsetX - The relative offset distance on the x-axis.
-   * @param {number} offsetY - The relative offset distance on the y-axis.
-   * @returns {Object} this
+   * @param {number} [offsetY=offsetX] - The relative offset distance on the y-axis.
+   * @returns {Cropper} this
    */
-  move: function move(offsetX, offsetY) {
-    var _canvasData = this.canvasData,
-        left = _canvasData.left,
-        top = _canvasData.top;
-
-
+  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 {Object} this
+   * @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);
 
@@ -2711,17 +2609,14 @@ var methods = {
     return this;
   },
 
-
   /**
    * Zoom the canvas with a relative ratio
    * @param {number} ratio - The target ratio.
    * @param {Event} _originalEvent - The original event if any.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   zoom: function zoom(ratio, _originalEvent) {
     var canvasData = this.canvasData;
-
-
     ratio = Number(ratio);
 
     if (ratio < 0) {
@@ -2733,13 +2628,12 @@ var methods = {
     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 {Object} this
+   * @returns {Cropper} this
    */
   zoomTo: function zoomTo(ratio, pivot, _originalEvent) {
     var options = this.options,
@@ -2748,8 +2642,6 @@ var methods = {
         height = canvasData.height,
         naturalWidth = canvasData.naturalWidth,
         naturalHeight = canvasData.naturalHeight;
-
-
     ratio = Number(ratio);
 
     if (ratio >= 0 && this.ready && !this.disabled && options.zoomable) {
@@ -2757,23 +2649,21 @@ var methods = {
       var newHeight = naturalHeight * ratio;
 
       if (dispatchEvent(this.element, EVENT_ZOOM, {
-        originalEvent: _originalEvent,
+        ratio: ratio,
         oldRatio: width / naturalWidth,
-        ratio: newWidth / 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
 
-        // 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)) {
@@ -2793,21 +2683,19 @@ var methods = {
     return this;
   },
 
-
   /**
    * Rotate the canvas with a relative degree
    * @param {number} degree - The rotate degree.
-   * @returns {Object} this
+   * @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 {Object} this
+   * @returns {Cropper} this
    */
   rotateTo: function rotateTo(degree) {
     degree = Number(degree);
@@ -2820,45 +2708,36 @@ var methods = {
     return this;
   },
 
-
   /**
    * Scale the image on the x-axis.
    * @param {number} scaleX - The scale ratio on the x-axis.
-   * @returns {Object} this
+   * @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 {Object} this
+   * @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 {Object} this
+   * @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);
 
@@ -2881,20 +2760,18 @@ var methods = {
     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$$1() {
+  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 = void 0;
+    var data;
 
     if (this.ready && this.cropped) {
       data = {
@@ -2903,13 +2780,21 @@ var methods = {
         width: cropBoxData.width,
         height: cropBoxData.height
       };
-
       var ratio = imageData.width / imageData.naturalWidth;
-
-      each(data, function (n, i) {
-        n /= ratio;
-        data[i] = rounded ? Math.round(n) : n;
+      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,
@@ -2931,23 +2816,17 @@ var methods = {
     return data;
   },
 
-
   /**
    * Set the cropped area position and size with new data
    * @param {Object} data - The new data.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
-  setData: function setData$$1(data) {
+  setData: function setData(data) {
     var options = this.options,
         imageData = this.imageData,
         canvasData = this.canvasData;
-
     var cropBoxData = {};
 
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
-
     if (this.ready && !this.disabled && isPlainObject(data)) {
       var transformed = false;
 
@@ -2998,36 +2877,32 @@ var methods = {
     return this;
   },
 
-
   /**
    * Get the container size data.
    * @returns {Object} The result container data.
    */
   getContainerData: function getContainerData() {
-    return this.ready ? extend({}, this.containerData) : {};
+    return this.ready ? assign({}, this.containerData) : {};
   },
 
-
   /**
    * Get the image position and size data.
    * @returns {Object} The result image data.
    */
   getImageData: function getImageData() {
-    return this.loaded ? extend({}, this.imageData) : {};
+    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) {
-      each(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
+      forEach(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
         data[n] = canvasData[n];
       });
     }
@@ -3035,21 +2910,15 @@ var methods = {
     return data;
   },
 
-
   /**
    * Set the canvas position and size with new data.
    * @param {Object} data - The new canvas data.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   setCanvasData: function setCanvasData(data) {
     var canvasData = this.canvasData;
     var aspectRatio = canvasData.aspectRatio;
 
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
-
     if (this.ready && !this.disabled && isPlainObject(data)) {
       if (isNumber(data.left)) {
         canvasData.left = data.left;
@@ -3073,15 +2942,13 @@ var methods = {
     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 = void 0;
+    var data;
 
     if (this.ready && this.cropped) {
       data = {
@@ -3095,22 +2962,16 @@ var methods = {
     return data || {};
   },
 
-
   /**
    * Set the crop box position and size with new data.
    * @param {Object} data - The new crop box data.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   setCropBoxData: function setCropBoxData(data) {
     var cropBoxData = this.cropBoxData;
     var aspectRatio = this.options.aspectRatio;
-
-    var widthChanged = void 0;
-    var heightChanged = void 0;
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
+    var widthChanged;
+    var heightChanged;
 
     if (this.ready && this.cropped && !this.disabled && isPlainObject(data)) {
       if (isNumber(data.left)) {
@@ -3145,7 +3006,6 @@ var methods = {
     return this;
   },
 
-
   /**
    * Get a canvas drawn the cropped image.
    * @param {Object} [options={}] - The config options.
@@ -3159,78 +3019,77 @@ var methods = {
     }
 
     var canvasData = this.canvasData;
+    var source = getSourceCanvas(this.image, this.imageData, canvasData, options); // Returns the source canvas if it is not cropped.
 
-    var source = getSourceCanvas(this.image, this.imageData, canvasData, options);
-
-    // Returns the source canvas if it is not cropped.
     if (!this.cropped) {
       return source;
     }
 
-    var _getData = this.getData(),
-        x = _getData.x,
-        y = _getData.y,
-        initialWidth = _getData.width,
-        initialHeight = _getData.height;
+    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 = getContainSizes({
+    var maxSizes = getAdjustedSizes({
       aspectRatio: aspectRatio,
       width: options.maxWidth || Infinity,
       height: options.maxHeight || Infinity
     });
-    var minSizes = getContainSizes({
+    var minSizes = getAdjustedSizes({
       aspectRatio: aspectRatio,
       width: options.minWidth || 0,
       height: options.minHeight || 0
-    });
+    }, 'cover');
 
-    var _getContainSizes = getContainSizes({
+    var _getAdjustedSizes = getAdjustedSizes({
       aspectRatio: aspectRatio,
-      width: options.width || initialWidth,
-      height: options.height || initialHeight
+      width: options.width || (ratio !== 1 ? source.width : initialWidth),
+      height: options.height || (ratio !== 1 ? source.height : initialHeight)
     }),
-        width = _getContainSizes.width,
-        height = _getContainSizes.height;
+        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 === undefined ? true : _options$imageSmoothi,
+        imageSmoothingEnabled = _options$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
+
 
-    // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
     var sourceWidth = source.width;
-    var sourceHeight = source.height;
+    var sourceHeight = source.height; // Source canvas parameters
 
-    // Source canvas parameters
-    var srcX = x;
-    var srcY = y;
-    var srcWidth = void 0;
-    var srcHeight = void 0;
+    var srcX = initialX;
+    var srcY = initialY;
+    var srcWidth;
+    var srcHeight; // Destination canvas parameters
 
-    // Destination canvas parameters
-    var dstX = void 0;
-    var dstY = void 0;
-    var dstWidth = void 0;
-    var dstHeight = void 0;
+    var dstX;
+    var dstY;
+    var dstWidth;
+    var dstHeight;
 
     if (srcX <= -initialWidth || srcX > sourceWidth) {
       srcX = 0;
@@ -3264,34 +3123,29 @@ var methods = {
       dstHeight = srcHeight;
     }
 
-    // All the numerical parameters should be integer for `drawImage`
-    // https://github.com/fengyuanchen/cropper/issues/476
-    var params = [srcX, srcY, srcWidth, srcHeight];
+    var params = [srcX, srcY, srcWidth, srcHeight]; // Avoid "IndexSizeError"
 
-    // 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) {
+
+    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 {Object} this
+   * @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;
@@ -3308,24 +3162,21 @@ var methods = {
     return this;
   },
 
-
   /**
    * Change the drag mode.
    * @param {string} mode - The new drag mode.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   setDragMode: function setDragMode(mode) {
     var options = this.options,
         dragBox = this.dragBox,
         face = this.face;
 
-
-    if (this.loaded && !this.disabled) {
+    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);
@@ -3344,7 +3195,9 @@ var methods = {
 
 var AnotherCropper = WINDOW.Cropper;
 
-var Cropper = function () {
+var Cropper =
+/*#__PURE__*/
+function () {
   /**
    * Create a new Cropper.
    * @param {Element} element - The target element for cropping.
@@ -3352,58 +3205,50 @@ var Cropper = function () {
    */
   function Cropper(element) {
     var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
-    classCallCheck(this, Cropper);
+
+    _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 = extend({}, DEFAULTS, isPlainObject(options) && options);
-    this.complete = false;
+    this.options = assign({}, DEFAULTS, isPlainObject(options) && options);
     this.cropped = false;
     this.disabled = false;
-    this.isImg = false;
-    this.limited = false;
-    this.loaded = false;
+    this.pointers = {};
     this.ready = false;
+    this.reloading = false;
     this.replaced = false;
-    this.wheeling = false;
-    this.originalUrl = '';
-    this.canvasData = null;
-    this.cropBoxData = null;
-    this.previews = null;
-    this.pointers = {};
+    this.sized = false;
+    this.sizing = false;
     this.init();
   }
 
-  createClass(Cropper, [{
-    key: 'init',
+  _createClass(Cropper, [{
+    key: "init",
     value: function init() {
       var element = this.element;
-
       var tagName = element.tagName.toLowerCase();
-      var url = void 0;
+      var url;
 
-      if (getData(element, NAMESPACE)) {
+      if (element[NAMESPACE]) {
         return;
       }
 
-      setData(element, NAMESPACE, this);
+      element[NAMESPACE] = this;
 
       if (tagName === 'img') {
-        this.isImg = true;
+        this.isImg = true; // e.g.: "img/picture.jpg"
 
-        // e.g.: "img/picture.jpg"
         url = element.getAttribute('src') || '';
-        this.originalUrl = url;
+        this.originalUrl = url; // Stop when it's a blank image
 
-        // Stop when it's a blank image
         if (!url) {
           return;
-        }
+        } // e.g.: "http://example.com/img/picture.jpg"
+
 
-        // e.g.: "http://example.com/img/picture.jpg"
         url = element.src;
       } else if (tagName === 'canvas' && window.HTMLCanvasElement) {
         url = element.toDataURL();
@@ -3412,7 +3257,7 @@ var Cropper = function () {
       this.load(url);
     }
   }, {
-    key: 'load',
+    key: "load",
     value: function load(url) {
       var _this = this;
 
@@ -3422,59 +3267,88 @@ var Cropper = function () {
 
       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
+
 
-      // XMLHttpRequest disallows to open a Data URL in some browsers like IE11 and Safari
       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();
 
-      xhr.onerror = function () {
-        _this.clone();
+      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.open('GET', url);
       xhr.responseType = 'arraybuffer';
       xhr.withCredentials = element.crossOrigin === 'use-credentials';
       xhr.send();
     }
   }, {
-    key: 'read',
+    key: "read",
     value: function read(arrayBuffer) {
       var options = this.options,
-          imageData = this.imageData;
+          imageData = this.imageData; // Reset the orientation value to its default value 1
+      // as some iOS browsers will render image with its orientation
 
-      var orientation = getOrientation(arrayBuffer);
+      var orientation = resetAndGetOrientation(arrayBuffer);
       var rotate = 0;
       var scaleX = 1;
       var scaleY = 1;
 
       if (orientation > 1) {
-        this.url = arrayBufferToDataURL(arrayBuffer, 'image/jpeg');
+        // Generate a new URL which has the default orientation value
+        this.url = arrayBufferToDataURL(arrayBuffer, MIME_TYPE_JPEG);
 
         var _parseOrientation = parseOrientation(orientation);
 
@@ -3495,31 +3369,24 @@ var Cropper = function () {
       this.clone();
     }
   }, {
-    key: 'clone',
+    key: "clone",
     value: function clone() {
       var element = this.element,
           url = this.url;
-
-      var crossOrigin = void 0;
-      var crossOriginUrl = void 0;
+      var crossOrigin = element.crossOrigin;
+      var crossOriginUrl = url;
 
       if (this.options.checkCrossOrigin && isCrossOriginURL(url)) {
-        crossOrigin = element.crossOrigin;
-
-
-        if (crossOrigin) {
-          crossOriginUrl = url;
-        } else {
+        if (!crossOrigin) {
           crossOrigin = 'anonymous';
+        } // Bust cache when there is not a "crossOrigin" property (#519)
 
-          // Bust cache when there is not a "crossOrigin" property
-          crossOriginUrl = addTimestamp(url);
-        }
+
+        crossOriginUrl = addTimestamp(url);
       }
 
       this.crossOrigin = crossOrigin;
       this.crossOriginUrl = crossOriginUrl;
-
       var image = document.createElement('img');
 
       if (crossOrigin) {
@@ -3527,138 +3394,126 @@ var Cropper = function () {
       }
 
       image.src = crossOriginUrl || url;
-
-      var start = proxy(this.start, this);
-      var stop = proxy(this.stop, this);
-
+      image.alt = element.alt || 'The image to crop';
       this.image = image;
-      this.onStart = start;
-      this.onStop = stop;
-
-      if (this.isImg) {
-        if (element.complete) {
-          this.start();
-        } else {
-          addListener(element, EVENT_LOAD, start);
-        }
-      } else {
-        addListener(image, EVENT_LOAD, start);
-        addListener(image, EVENT_ERROR, stop);
-        addClass(image, CLASS_HIDE);
-        element.parentNode.insertBefore(image, element.nextSibling);
-      }
+      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(event) {
+    key: "start",
+    value: function start() {
       var _this2 = this;
 
-      var image = this.isImg ? this.element : this.image;
+      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.
 
-      if (event) {
-        removeListener(image, EVENT_LOAD, this.onStart);
-        removeListener(image, EVENT_ERROR, this.onStop);
-      }
+      var isIOSWebKit = WINDOW.navigator && /(?:iPad|iPhone|iPod).*?AppleWebKit/i.test(WINDOW.navigator.userAgent);
 
-      getImageNaturalSizes(image, function (naturalWidth, naturalHeight) {
-        extend(_this2.imageData, {
+      var done = function done(naturalWidth, naturalHeight) {
+        assign(_this2.imageData, {
           naturalWidth: naturalWidth,
           naturalHeight: naturalHeight,
           aspectRatio: naturalWidth / naturalHeight
         });
-        _this2.loaded = true;
+        _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',
+    key: "stop",
     value: function stop() {
       var image = this.image;
-
-
-      removeListener(image, EVENT_LOAD, this.onStart);
-      removeListener(image, EVENT_ERROR, this.onStop);
+      image.onload = null;
+      image.onerror = null;
       image.parentNode.removeChild(image);
       this.image = null;
     }
   }, {
-    key: 'build',
+    key: "build",
     value: function build() {
-      var _this3 = this;
-
-      if (!this.loaded) {
+      if (!this.sized || this.ready) {
         return;
       }
 
-      // Unbuild first when replace
-      if (this.ready) {
-        this.unbuild();
-      }
-
       var element = this.element,
           options = this.options,
-          image = this.image;
-
-      // Create cropper elements
+          image = this.image; // Create cropper elements
 
       var container = element.parentNode;
       var template = document.createElement('div');
-
       template.innerHTML = TEMPLATE;
-
-      var cropper = template.querySelector('.' + NAMESPACE + '-container');
-      var canvas = cropper.querySelector('.' + NAMESPACE + '-canvas');
-      var dragBox = cropper.querySelector('.' + NAMESPACE + '-drag-box');
-      var cropBox = cropper.querySelector('.' + NAMESPACE + '-crop-box');
-      var face = cropBox.querySelector('.' + NAMESPACE + '-face');
-
+      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('.' + NAMESPACE + '-view-box');
+      this.viewBox = cropper.querySelector(".".concat(NAMESPACE, "-view-box"));
       this.face = face;
+      canvas.appendChild(image); // Hide the original image
 
-      canvas.appendChild(image);
-
-      // Hide the original image
-      addClass(element, CLASS_HIDDEN);
+      addClass(element, CLASS_HIDDEN); // Inserts the cropper after to the current image
 
-      // Inserts the cropper after to the current image
-      container.insertBefore(cropper, element.nextSibling);
+      container.insertBefore(cropper, element.nextSibling); // Show the image if is hidden
 
-      // 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;
-
-      this.cropped = options.autoCrop;
-
-      if (options.autoCrop) {
-        if (options.modal) {
-          addClass(dragBox, CLASS_MODAL);
-        }
-      } else {
-        addClass(cropBox, CLASS_HIDDEN);
-      }
+      addClass(cropBox, CLASS_HIDDEN);
 
       if (!options.guides) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-dashed'), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-dashed")), CLASS_HIDDEN);
       }
 
       if (!options.center) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-center'), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-center")), CLASS_HIDDEN);
       }
 
       if (options.background) {
-        addClass(cropper, NAMESPACE + '-bg');
+        addClass(cropper, "".concat(NAMESPACE, "-bg"));
       }
 
       if (!options.highlight) {
@@ -3671,90 +3526,85 @@ var Cropper = function () {
       }
 
       if (!options.cropBoxResizable) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-line'), CLASS_HIDDEN);
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-point'), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-line")), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-point")), CLASS_HIDDEN);
       }
 
-      this.setDragMode(options.dragMode);
       this.render();
       this.ready = true;
-      this.setData(options.data);
+      this.setDragMode(options.dragMode);
 
-      // Call the "ready" option asynchronously to keep "image.cropper" is defined
-      this.completing = setTimeout(function () {
-        if (isFunction(options.ready)) {
-          addListener(element, EVENT_READY, options.ready, {
-            once: true
-          });
-        }
+      if (options.autoCrop) {
+        this.crop();
+      }
 
-        dispatchEvent(element, EVENT_READY);
-        dispatchEvent(element, EVENT_CROP, _this3.getData());
+      this.setData(options.data);
+
+      if (isFunction(options.ready)) {
+        addListener(element, EVENT_READY, options.ready, {
+          once: true
+        });
+      }
 
-        _this3.complete = true;
-      }, 0);
+      dispatchEvent(element, EVENT_READY);
     }
   }, {
-    key: 'unbuild',
+    key: "unbuild",
     value: function unbuild() {
       if (!this.ready) {
         return;
       }
 
-      if (!this.complete) {
-        clearTimeout(this.completing);
-      }
-
       this.ready = false;
-      this.complete = false;
-      this.initialImageData = null;
-
-      // Clear `initialCanvasData` is necessary when replace
-      this.initialCanvasData = null;
-      this.initialCropBoxData = null;
-      this.containerData = null;
-      this.canvasData = null;
-
-      // Clear `cropBoxData` is necessary when replace
-      this.cropBoxData = null;
       this.unbind();
       this.resetPreview();
-      this.previews = null;
-      this.viewBox = null;
-      this.cropBox = null;
-      this.dragBox = null;
-      this.canvas = null;
-      this.container = null;
       this.cropper.parentNode.removeChild(this.cropper);
-      this.cropper = null;
+      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',
+    key: "noConflict",
     value: function noConflict() {
       window.Cropper = AnotherCropper;
       return Cropper;
     }
-
     /**
      * Change the default options.
      * @param {Object} options - The new default options.
      */
 
   }, {
-    key: 'setDefaults',
+    key: "setDefaults",
     value: function setDefaults(options) {
-      extend(DEFAULTS, isPlainObject(options) && options);
+      assign(DEFAULTS, isPlainObject(options) && options);
     }
   }]);
+
   return Cropper;
 }();
 
-extend(Cropper.prototype, render, preview, events, handlers, change, methods);
+assign(Cropper.prototype, render, preview, events, handlers, change, methods);
 
 module.exports = Cropper;
diff --git a/library/cropperjs/dist/cropper.css b/library/cropperjs/dist/cropper.css
index dd22178fe..d54319a64 100644
--- a/library/cropperjs/dist/cropper.css
+++ b/library/cropperjs/dist/cropper.css
@@ -1,11 +1,11 @@
 /*!
- * Cropper.js v1.2.2
- * https://github.com/fengyuanchen/cropperjs
+ * Cropper.js v1.5.6
+ * https://fengyuanchen.github.io/cropperjs
  *
- * Copyright (c) 2015-2018 Chen Fengyuan
+ * Copyright 2015-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-01-03T13:26:29.610Z
+ * Date: 2019-10-04T04:33:44.164Z
  */
 
 .cropper-container {
@@ -21,8 +21,7 @@
   user-select: none;
 }
 
-.cropper-container img {/*Avoid margin top issue (Occur only when margin-top <= -height)
- */
+.cropper-container img {
   display: block;
   height: 100%;
   image-orientation: 0deg;
@@ -57,14 +56,14 @@
 
 .cropper-modal {
   background-color: #000;
-  opacity: .5;
+  opacity: 0.5;
 }
 
 .cropper-view-box {
   display: block;
   height: 100%;
-  outline-color: rgba(51, 153, 255, 0.75);
   outline: 1px solid #39f;
+  outline-color: rgba(51, 153, 255, 0.75);
   overflow: hidden;
   width: 100%;
 }
@@ -72,16 +71,16 @@
 .cropper-dashed {
   border: 0 dashed #eee;
   display: block;
-  opacity: .5;
+  opacity: 0.5;
   position: absolute;
 }
 
 .cropper-dashed.dashed-h {
   border-bottom-width: 1px;
   border-top-width: 1px;
-  height: 33.33333%;
+  height: calc(100% / 3);
   left: 0;
-  top: 33.33333%;
+  top: calc(100% / 3);
   width: 100%;
 }
 
@@ -89,37 +88,37 @@
   border-left-width: 1px;
   border-right-width: 1px;
   height: 100%;
-  left: 33.33333%;
+  left: calc(100% / 3);
   top: 0;
-  width: 33.33333%;
+  width: calc(100% / 3);
 }
 
 .cropper-center {
   display: block;
   height: 0;
   left: 50%;
-  opacity: .75;
+  opacity: 0.75;
   position: absolute;
   top: 50%;
   width: 0;
 }
 
-.cropper-center:before,
-.cropper-center:after {
+.cropper-center::before,
+.cropper-center::after {
   background-color: #eee;
   content: ' ';
   display: block;
   position: absolute;
 }
 
-.cropper-center:before {
+.cropper-center::before {
   height: 1px;
   left: -3px;
   top: 0;
   width: 7px;
 }
 
-.cropper-center:after {
+.cropper-center::after {
   height: 7px;
   left: 0;
   top: -3px;
@@ -131,7 +130,7 @@
 .cropper-point {
   display: block;
   height: 100%;
-  opacity: .1;
+  opacity: 0.1;
   position: absolute;
   width: 100%;
 }
@@ -177,7 +176,7 @@
 .cropper-point {
   background-color: #39f;
   height: 5px;
-  opacity: .75;
+  opacity: 0.75;
   width: 5px;
 }
 
@@ -253,12 +252,12 @@
 @media (min-width: 1200px) {
   .cropper-point.point-se {
     height: 5px;
-    opacity: .75;
+    opacity: 0.75;
     width: 5px;
   }
 }
 
-.cropper-point.point-se:before {
+.cropper-point.point-se::before {
   background-color: #39f;
   bottom: -50%;
   content: ' ';
@@ -303,4 +302,3 @@
 .cropper-disabled .cropper-point {
   cursor: not-allowed;
 }
-
diff --git a/library/cropperjs/dist/cropper.esm.js b/library/cropperjs/dist/cropper.esm.js
index 929852d8a..55bb43ec3 100644
--- a/library/cropperjs/dist/cropper.esm.js
+++ b/library/cropperjs/dist/cropper.esm.js
@@ -1,17 +1,124 @@
 /*!
- * Cropper.js v1.2.2
- * https://github.com/fengyuanchen/cropperjs
+ * Cropper.js v1.5.6
+ * https://fengyuanchen.github.io/cropperjs
  *
- * Copyright (c) 2015-2018 Chen Fengyuan
+ * Copyright 2015-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-01-03T13:27:18.062Z
+ * Date: 2019-10-04T04:33:48.372Z
  */
 
-var WINDOW = typeof window !== 'undefined' ? window : {};
-var NAMESPACE = 'cropper';
+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
 
-// Actions
 var ACTION_ALL = 'all';
 var ACTION_CROP = 'crop';
 var ACTION_MOVE = 'move';
@@ -23,127 +130,107 @@ 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 = NAMESPACE + '-crop';
-var CLASS_DISABLED = NAMESPACE + '-disabled';
-var CLASS_HIDDEN = NAMESPACE + '-hidden';
-var CLASS_HIDE = NAMESPACE + '-hide';
-var CLASS_INVISIBLE = NAMESPACE + '-invisible';
-var CLASS_MODAL = NAMESPACE + '-modal';
-var CLASS_MOVE = NAMESPACE + '-move';
-
-// Data keys
-var DATA_ACTION = 'action';
-var DATA_PREVIEW = 'preview';
-
-// Drag modes
+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';
+var DRAG_MODE_NONE = 'none'; // Events
 
-// 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_ERROR = 'error';
-var EVENT_LOAD = 'load';
-var EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown' : 'touchstart mousedown';
-var EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove' : 'touchmove mousemove';
-var EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';
+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 mousewheel DOMMouseScroll';
-var EVENT_ZOOM = 'zoom';
+var EVENT_WHEEL = 'wheel';
+var EVENT_ZOOM = 'zoom'; // Mime types
 
-// RegExps
-var REGEXP_ACTIONS = /^(e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
+var MIME_TYPE_JPEG = 'image/jpeg'; // RegExps
+
+var REGEXP_ACTIONS = /^e|w|s|n|se|sw|ne|nw|all|crop|move|zoom$/;
 var REGEXP_DATA_URL = /^data:/;
 var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
-var REGEXP_TAG_NAME = /^(img|canvas)$/i;
+var REGEXP_TAG_NAME = /^img|canvas$/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: 0, // 0, 1, 2, 3
-
+  viewMode: 0,
+  // 0, 1, 2, 3
   // Define the dragging mode of the cropper
-  dragMode: DRAG_MODE_CROP, // 'crop', 'move' or 'none'
-
+  dragMode: DRAG_MODE_CROP,
+  // 'crop', 'move' or 'none'
+  // Define the initial aspect ratio of the crop box
+  initialAspectRatio: NaN,
   // Define the aspect ratio of the crop box
   aspectRatio: NaN,
-
   // 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: true,
-
   // Show the dashed lines for guiding
   guides: true,
-
   // Show the center indicator for guiding
   center: true,
-
   // Show the white modal to highlight the crop box
   highlight: true,
-
   // Show the grid background
   background: true,
-
   // 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: true,
-
   // Enable to resize the crop box
   cropBoxResizable: true,
-
   // Toggle drag mode between "crop" and "move" when click twice on the cropper
   toggleDragModeOnDblclick: true,
-
   // Size limitation
   minCanvasWidth: 0,
   minCanvasHeight: 0,
@@ -151,7 +238,6 @@ var DEFAULTS = {
   minCropBoxHeight: 0,
   minContainerWidth: 200,
   minContainerHeight: 100,
-
   // Shortcuts of events
   ready: null,
   cropstart: null,
@@ -161,132 +247,50 @@ var DEFAULTS = {
   zoom: null
 };
 
-var TEMPLATE = '<div class="cropper-container">' + '<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-action="e"></span>' + '<span class="cropper-line line-n" data-action="n"></span>' + '<span class="cropper-line line-w" data-action="w"></span>' + '<span class="cropper-line line-s" data-action="s"></span>' + '<span class="cropper-point point-e" data-action="e"></span>' + '<span class="cropper-point point-n" data-action="n"></span>' + '<span class="cropper-point point-w" data-action="w"></span>' + '<span class="cropper-point point-s" data-action="s"></span>' + '<span class="cropper-point point-ne" data-action="ne"></span>' + '<span class="cropper-point point-nw" data-action="nw"></span>' + '<span class="cropper-point point-sw" data-action="sw"></span>' + '<span class="cropper-point point-se" data-action="se"></span>' + '</div>' + '</div>';
-
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
-  return typeof obj;
-} : function (obj) {
-  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
-};
-
-
-
-
-
-
-
-
-
-
-
-var classCallCheck = function (instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError("Cannot call a class as a function");
-  }
-};
-
-var createClass = function () {
-  function defineProperties(target, props) {
-    for (var i = 0; i < props.length; i++) {
-      var descriptor = props[i];
-      descriptor.enumerable = descriptor.enumerable || false;
-      descriptor.configurable = true;
-      if ("value" in descriptor) descriptor.writable = true;
-      Object.defineProperty(target, descriptor.key, descriptor);
-    }
-  }
-
-  return function (Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps);
-    if (staticProps) defineProperties(Constructor, staticProps);
-    return Constructor;
-  };
-}();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-var toConsumableArray = function (arr) {
-  if (Array.isArray(arr)) {
-    for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
-
-    return arr2;
-  } else {
-    return Array.from(arr);
-  }
-};
+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;
 
+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 === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value !== null;
+  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.
@@ -301,41 +305,45 @@ function isPlainObject(value) {
   try {
     var _constructor = value.constructor;
     var prototype = _constructor.prototype;
-
-
     return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
-  } catch (e) {
+  } 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 each(data, callback) {
-  if (data && isFunction(callback)) {
-    if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
-        var length = data.length;
-
-        var i = void 0;
 
-        for (i = 0; i < length; i += 1) {
-          if (callback.call(data, data[i], i, data) === false) {
-            break;
-          }
-        }
+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);
@@ -345,112 +353,83 @@ function each(data, callback) {
 
   return data;
 }
-
 /**
  * Extend the given object.
- * @param {*} obj - The object to be extended.
- * @param {*} args - The rest objects which will be merged to the first object.
+ * @param {*} target - The target object to extend.
+ * @param {*} args - The rest objects for merging to the target object.
  * @returns {Object} The extended object.
  */
-function extend(obj) {
-  for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+
+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(obj) && args.length > 0) {
-    if (Object.assign) {
-      return Object.assign.apply(Object, [obj].concat(args));
-    }
-
+  if (isObject(target) && args.length > 0) {
     args.forEach(function (arg) {
       if (isObject(arg)) {
         Object.keys(arg).forEach(function (key) {
-          obj[key] = arg[key];
+          target[key] = arg[key];
         });
       }
     });
   }
 
-  return obj;
-}
-
-/**
- * Takes a function and returns a new one that will always have a particular context.
- * @param {Function} fn - The target function.
- * @param {Object} context - The new context for the function.
- * @returns {boolean} The new function.
- */
-function proxy(fn, context) {
-  for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
-    args[_key2 - 2] = arguments[_key2];
-  }
-
-  return function () {
-    for (var _len3 = arguments.length, args2 = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
-      args2[_key3] = arguments[_key3];
-    }
-
-    return fn.apply(context, args.concat(args2));
-  };
-}
-
-var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/i;
-
+  return target;
+};
+var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/;
 /**
  * Normalize decimal number.
- * Check out {@link http://0.30000000000000004.com/ }
+ * 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)$/;
-
+var REGEXP_SUFFIX = /^width|height|left|top|marginLeft|marginTop$/;
 /**
  * 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;
-
-
-  each(styles, function (value, property) {
+  forEach(styles, function (value, property) {
     if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
-      value += 'px';
+      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)) {
-    each(element, function (elem) {
+    forEach(element, function (elem) {
       addClass(elem, value);
     });
     return;
@@ -466,22 +445,22 @@ function addClass(element, value) {
   if (!className) {
     element.className = value;
   } else if (className.indexOf(value) < 0) {
-    element.className = className + ' ' + value;
+    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)) {
-    each(element, function (elem) {
+    forEach(element, function (elem) {
       removeClass(elem, value);
     });
     return;
@@ -496,102 +475,131 @@ function removeClass(element, value) {
     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)) {
-    each(element, function (elem) {
+    forEach(element, function (elem) {
       toggleClass(elem, value, added);
     });
     return;
-  }
+  } // IE10-11 doesn't support the second parameter of `classList.toggle`
+
 
-  // IE10-11 doesn't support the second parameter of `classList.toggle`
   if (added) {
     addClass(element, value);
   } else {
     removeClass(element, value);
   }
 }
-
-var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;
-
+var REGEXP_CAMEL_CASE = /([a-z\d])([A-Z])/g;
 /**
- * Hyphenate the given value.
- * @param {string} value - The value to hyphenate.
- * @returns {string} The hyphenated value.
+ * Transform the given string from camelCase to kebab-case
+ * @param {string} value - The value to transform.
+ * @returns {string} The transformed value.
  */
-function hyphenate(value) {
-  return value.replace(REGEXP_HYPHENATE, '$1-$2').toLowerCase();
-}
 
+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];
-  } else if (element.dataset) {
+  }
+
+  if (element.dataset) {
     return element.dataset[name];
   }
 
-  return element.getAttribute('data-' + hyphenate(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-' + hyphenate(name), data);
+    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 (e) {
-      element[name] = null;
+    } catch (error) {
+      element[name] = undefined;
     }
   } else if (element.dataset) {
     // #128 Safari not allows to delete dataset property
     try {
       delete element.dataset[name];
-    } catch (e) {
-      element.dataset[name] = null;
+    } catch (error) {
+      element.dataset[name] = undefined;
     }
   } else {
-    element.removeAttribute('data-' + hyphenate(name));
+    element.removeAttribute("data-".concat(toParamCase(name)));
   }
 }
+var REGEXP_SPACES = /\s\s*/;
 
-var REGEXP_SPACES = /\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.
@@ -599,29 +607,32 @@ var REGEXP_SPACES = /\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 (!isFunction(listener)) {
-    return;
-  }
+      if (listeners && listeners[event] && listeners[event][listener]) {
+        handler = listeners[event][listener];
+        delete listeners[event][listener];
 
-  var types = type.trim().split(REGEXP_SPACES);
+        if (Object.keys(listeners[event]).length === 0) {
+          delete listeners[event];
+        }
 
-  if (types.length > 1) {
-    each(types, function (t) {
-      removeListener(element, t, listener, options);
-    });
-    return;
-  }
+        if (Object.keys(listeners).length === 0) {
+          delete element.listeners;
+        }
+      }
+    }
 
-  if (element.removeEventListener) {
-    element.removeEventListener(type, listener, options);
-  } else if (element.detachEvent) {
-    element.detachEvent('on' + type, listener);
-  }
+    element.removeEventListener(event, handler, options);
+  });
 }
-
 /**
  * Add event listener to the target element.
  * @param {Element} element - The event target.
@@ -629,42 +640,41 @@ function removeListener(element, type, listener) {
  * @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] : {};
-
-  if (!isFunction(_listener)) {
-    return;
-  }
 
-  var types = type.trim().split(REGEXP_SPACES);
+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];
+        }
 
-  if (types.length > 1) {
-    each(types, function (t) {
-      addListener(element, t, _listener, options);
-    });
-    return;
-  }
+        listener.apply(element, args);
+      };
 
-  if (options.once) {
-    var originalListener = _listener;
+      if (!listeners[event]) {
+        listeners[event] = {};
+      }
 
-    _listener = function listener() {
-      for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
-        args[_key4] = arguments[_key4];
+      if (listeners[event][listener]) {
+        element.removeEventListener(event, listeners[event][listener], options);
       }
 
-      removeListener(element, type, _listener, options);
-      return originalListener.apply(element, args);
-    };
-  }
+      listeners[event][listener] = _handler;
+      element.listeners = listeners;
+    }
 
-  if (element.addEventListener) {
-    element.addEventListener(type, _listener, options);
-  } else if (element.attachEvent) {
-    element.attachEvent('on' + type, _listener);
-  }
+    element.addEventListener(event, _handler, options);
+  });
 }
-
 /**
  * Dispatch event on the target element.
  * @param {Element} element - The event target.
@@ -672,187 +682,113 @@ function addListener(element, type, _listener) {
  * @param {Object} data - The additional event data.
  * @returns {boolean} Indicate if the event is default prevented or not.
  */
+
 function dispatchEvent(element, type, data) {
-  if (element.dispatchEvent) {
-    var event = void 0;
-
-    // Event and CustomEvent on IE9-11 are global objects, not constructors
-    if (isFunction(Event) && isFunction(CustomEvent)) {
-      if (isUndefined(data)) {
-        event = new Event(type, {
-          bubbles: true,
-          cancelable: true
-        });
-      } else {
-        event = new CustomEvent(type, {
-          detail: data,
-          bubbles: true,
-          cancelable: true
-        });
-      }
-    } else if (isUndefined(data)) {
-      event = document.createEvent('Event');
-      event.initEvent(type, true, true);
-    } else {
-      event = document.createEvent('CustomEvent');
-      event.initCustomEvent(type, true, true, data);
-    }
+  var event; // Event and CustomEvent on IE9-11 are global objects, not constructors
 
-    // IE9+
-    return element.dispatchEvent(event);
-  } else if (element.fireEvent) {
-    // IE6-10 (native events only)
-    return element.fireEvent('on' + type);
+  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 true;
+  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 doc = document.documentElement;
   var box = element.getBoundingClientRect();
-
   return {
-    left: box.left + ((window.scrollX || doc && doc.scrollLeft || 0) - (doc && doc.clientLeft || 0)),
-    top: box.top + ((window.scrollY || doc && doc.scrollTop || 0) - (doc && doc.clientTop || 0))
+    left: box.left + (window.pageXOffset - document.documentElement.clientLeft),
+    top: box.top + (window.pageYOffset - document.documentElement.clientTop)
   };
 }
-
-/**
- * Empty an element.
- * @param {Element} element - The element to empty.
- */
-function empty(element) {
-  while (element.firstChild) {
-    element.removeChild(element.firstChild);
-  }
-}
-
 var location = WINDOW.location;
-
-var REGEXP_ORIGINS = /^(https?:)\/\/([^:/?#]+):?(\d*)/i;
-
+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 && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
+  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=' + new Date().getTime();
 
+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(' + translateX + 'px)');
+    values.push("translateX(".concat(translateX, "px)"));
   }
 
   if (isNumber(translateY) && translateY !== 0) {
-    values.push('translateY(' + translateY + 'px)');
-  }
+    values.push("translateY(".concat(translateY, "px)"));
+  } // Rotate should come first before scale to match orientation transform
+
 
-  // Rotate should come first before scale to match orientation transform
   if (isNumber(rotate) && rotate !== 0) {
-    values.push('rotate(' + rotate + 'deg)');
+    values.push("rotate(".concat(rotate, "deg)"));
   }
 
   if (isNumber(scaleX) && scaleX !== 1) {
-    values.push('scaleX(' + scaleX + ')');
+    values.push("scaleX(".concat(scaleX, ")"));
   }
 
   if (isNumber(scaleY) && scaleY !== 1) {
-    values.push('scaleY(' + scaleY + ')');
+    values.push("scaleY(".concat(scaleY, ")"));
   }
 
   var transform = values.length ? values.join(' ') : 'none';
-
   return {
     WebkitTransform: transform,
     msTransform: transform,
     transform: transform
   };
 }
-
-var navigator = WINDOW.navigator;
-
-var IS_SAFARI_OR_UIWEBVIEW = navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(navigator.userAgent);
-
-/**
- * Get an image's natural sizes.
- * @param {string} image - The target image.
- * @param {Function} callback - The callback function.
- */
-function getImageNaturalSizes(image, callback) {
-  // Modern browsers (except Safari)
-  if (image.naturalWidth && !IS_SAFARI_OR_UIWEBVIEW) {
-    callback(image.naturalWidth, image.naturalHeight);
-    return;
-  }
-
-  var newImage = document.createElement('img');
-  var body = document.body || document.documentElement;
-
-  newImage.onload = function () {
-    callback(newImage.width, newImage.height);
-
-    if (!IS_SAFARI_OR_UIWEBVIEW) {
-      body.removeChild(newImage);
-    }
-  };
-
-  newImage.src = image.src;
-
-  // iOS Safari will convert the image automatically
-  // with its orientation once append it into DOM (#279)
-  if (!IS_SAFARI_OR_UIWEBVIEW) {
-    newImage.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(newImage);
-  }
-}
-
 /**
  * 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 = extend({}, pointers);
-  var ratios = [];
+  var pointers2 = _objectSpread2({}, pointers);
 
-  each(pointers, function (pointer, pointerId) {
+  var ratios = [];
+  forEach(pointers, function (pointer, pointerId) {
     delete pointers2[pointerId];
-
-    each(pointers2, function (pointer2) {
+    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);
@@ -860,99 +796,84 @@ function getMaxZoomRatio(pointers) {
       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
   };
-
-  if (endOnly) {
-    return end;
-  }
-
-  return extend({
+  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;
-
-  each(pointers, function (_ref3) {
+  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
   };
 }
-
-/**
- * Check if the given value is a finite number.
- */
-var isFinite = Number.isFinite || WINDOW.isFinite;
-
 /**
  * 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 getContainSizes(_ref4) {
+
+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);
 
-  var isValidNumber = function isValidNumber(value) {
-    return isFinite(value) && value > 0;
-  };
+  if (isValidWidth && isValidHeight) {
+    var adjustedWidth = height * aspectRatio;
 
-  if (isValidNumber(width) && isValidNumber(height)) {
-    if (height * aspectRatio > width) {
+    if (type === 'contain' && adjustedWidth > width || type === 'cover' && adjustedWidth < width) {
       height = width / aspectRatio;
     } else {
       width = height * aspectRatio;
     }
-  } else if (isValidNumber(width)) {
+  } else if (isValidWidth) {
     height = width / aspectRatio;
-  } else if (isValidNumber(height)) {
+  } else if (isValidHeight) {
     width = height * aspectRatio;
   }
 
@@ -961,17 +882,16 @@ function getContainSizes(_ref4) {
     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) {
@@ -986,7 +906,6 @@ function getRotatedSizes(_ref5) {
   var cosArc = Math.cos(arc);
   var newWidth = width * cosArc + height * sinArc;
   var newHeight = width * sinArc + height * cosArc;
-
   return degree > 90 ? {
     width: newHeight,
     height: newWidth
@@ -995,7 +914,6 @@ function getRotatedSizes(_ref5) {
     height: newHeight
   };
 }
-
 /**
  * Get a canvas which drew the given image.
  * @param {HTMLImageElement} image - The image for drawing.
@@ -1004,49 +922,63 @@ function getRotatedSizes(_ref5) {
  * @param {Object} options - The options.
  * @returns {HTMLCanvasElement} The result canvas.
  */
+
 function getSourceCanvas(image, _ref6, _ref7, _ref8) {
-  var imageNaturalWidth = _ref6.naturalWidth,
+  var imageAspectRatio = _ref6.aspectRatio,
+      imageNaturalWidth = _ref6.naturalWidth,
       imageNaturalHeight = _ref6.naturalHeight,
       _ref6$rotate = _ref6.rotate,
-      rotate = _ref6$rotate === undefined ? 0 : _ref6$rotate,
+      rotate = _ref6$rotate === void 0 ? 0 : _ref6$rotate,
       _ref6$scaleX = _ref6.scaleX,
-      scaleX = _ref6$scaleX === undefined ? 1 : _ref6$scaleX,
+      scaleX = _ref6$scaleX === void 0 ? 1 : _ref6$scaleX,
       _ref6$scaleY = _ref6.scaleY,
-      scaleY = _ref6$scaleY === undefined ? 1 : _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$fillColor === undefined ? 'transparent' : _ref8$fillColor,
+      fillColor = _ref8$fillColor === void 0 ? 'transparent' : _ref8$fillColor,
       _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,
-      imageSmoothingEnabled = _ref8$imageSmoothingE === undefined ? true : _ref8$imageSmoothingE,
+      imageSmoothingEnabled = _ref8$imageSmoothingE === void 0 ? true : _ref8$imageSmoothingE,
       _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,
-      imageSmoothingQuality = _ref8$imageSmoothingQ === undefined ? 'low' : _ref8$imageSmoothingQ,
+      imageSmoothingQuality = _ref8$imageSmoothingQ === void 0 ? 'low' : _ref8$imageSmoothingQ,
       _ref8$maxWidth = _ref8.maxWidth,
-      maxWidth = _ref8$maxWidth === undefined ? Infinity : _ref8$maxWidth,
+      maxWidth = _ref8$maxWidth === void 0 ? Infinity : _ref8$maxWidth,
       _ref8$maxHeight = _ref8.maxHeight,
-      maxHeight = _ref8$maxHeight === undefined ? Infinity : _ref8$maxHeight,
+      maxHeight = _ref8$maxHeight === void 0 ? Infinity : _ref8$maxHeight,
       _ref8$minWidth = _ref8.minWidth,
-      minWidth = _ref8$minWidth === undefined ? 0 : _ref8$minWidth,
+      minWidth = _ref8$minWidth === void 0 ? 0 : _ref8$minWidth,
       _ref8$minHeight = _ref8.minHeight,
-      minHeight = _ref8$minHeight === undefined ? 0 : _ref8$minHeight;
-
+      minHeight = _ref8$minHeight === void 0 ? 0 : _ref8$minHeight;
   var canvas = document.createElement('canvas');
   var context = canvas.getContext('2d');
-  var maxSizes = getContainSizes({
+  var maxSizes = getAdjustedSizes({
     aspectRatio: aspectRatio,
     width: maxWidth,
     height: maxHeight
   });
-  var minSizes = getContainSizes({
+  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));
-  var params = [-imageNaturalWidth / 2, -imageNaturalHeight / 2, imageNaturalWidth, imageNaturalHeight];
+  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;
@@ -1057,15 +989,13 @@ function getSourceCanvas(image, _ref6, _ref7, _ref8) {
   context.scale(scaleX, scaleY);
   context.imageSmoothingEnabled = imageSmoothingEnabled;
   context.imageSmoothingQuality = imageSmoothingQuality;
-  context.drawImage.apply(context, [image].concat(toConsumableArray(params.map(function (param) {
+  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.
@@ -1076,133 +1006,139 @@ var fromCharCode = String.fromCharCode;
 
 function getStringFromCharCode(dataView, start, length) {
   var str = '';
-  var i = void 0;
-
   length += start;
 
-  for (i = start; i < length; i += 1) {
+  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);
-
-  each(uint8, function (value, i) {
+  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);
-  var data = '';
 
-  // TypedArray.prototype.forEach is not supported in some browsers.
-  each(uint8, function (value) {
-    data += fromCharCode(value);
-  });
+  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:' + mimeType + ';base64,' + btoa(data);
+  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 getOrientation(arrayBuffer) {
+
+function resetAndGetOrientation(arrayBuffer) {
   var dataView = new DataView(arrayBuffer);
-  var orientation = void 0;
-  var littleEndian = void 0;
-  var app1Start = void 0;
-  var ifdStart = void 0;
-
-  // 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 < length) {
-      if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
-        app1Start = offset;
-        break;
-      }
+  var orientation; // Ignores range error when the image does not have correct Exif information
 
-      offset += 1;
-    }
-  }
+  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;
 
-  if (app1Start) {
-    var exifIDCode = app1Start + 4;
-    var tiffOffset = app1Start + 10;
+      while (offset + 1 < length) {
+        if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
+          app1Start = offset;
+          break;
+        }
+
+        offset += 1;
+      }
+    }
 
-    if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
-      var endianness = dataView.getUint16(tiffOffset);
+    if (app1Start) {
+      var exifIDCode = app1Start + 4;
+      var tiffOffset = app1Start + 10;
 
-      littleEndian = endianness === 0x4949;
+      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 (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 (firstIFDOffset >= 0x00000008) {
+                ifdStart = tiffOffset + firstIFDOffset;
+              }
             }
           }
-        }
+      }
     }
-  }
 
-  if (ifdStart) {
-    var _length = dataView.getUint16(ifdStart, littleEndian);
-    var _offset = void 0;
-    var i = void 0;
+    if (ifdStart) {
+      var _length = dataView.getUint16(ifdStart, littleEndian);
 
-    for (i = 0; i < _length; i += 1) {
-      _offset = ifdStart + i * 12 + 2;
+      var _offset;
 
-      if (dataView.getUint16(_offset, littleEndian) === 0x0112 /* Orientation */) {
-          // 8 is the offset of the current tag's value
-          _offset += 8;
+      var i;
 
-          // Get the original orientation value
-          orientation = dataView.getUint16(_offset, littleEndian);
+      for (i = 0; i < _length; i += 1) {
+        _offset = ifdStart + i * 12 + 2;
 
-          // Override the orientation with its default value
-          dataView.setUint16(_offset, 1, littleEndian);
-          break;
-        }
+        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;
@@ -1213,35 +1149,35 @@ function parseOrientation(orientation) {
     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;
@@ -1272,34 +1208,25 @@ var render = {
         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;
@@ -1326,17 +1253,15 @@ var render = {
       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 = extend({}, imageData);
-    this.initialCanvasData = extend({}, canvasData);
+    this.initialImageData = assign({}, imageData);
+    this.initialCanvasData = assign({}, canvasData);
   },
   limitCanvas: function limitCanvas(sizeLimited, positionLimited) {
     var options = this.options,
@@ -1345,7 +1270,6 @@ var render = {
         cropBoxData = this.cropBoxData;
     var viewMode = options.viewMode;
     var aspectRatio = canvasData.aspectRatio;
-
     var cropped = this.cropped && cropBoxData;
 
     if (sizeLimited) {
@@ -1380,16 +1304,14 @@ var render = {
         }
       }
 
-      var _getContainSizes = getContainSizes({
+      var _getAdjustedSizes = getAdjustedSizes({
         aspectRatio: aspectRatio,
         width: minCanvasWidth,
         height: minCanvasHeight
       });
 
-      minCanvasWidth = _getContainSizes.width;
-      minCanvasHeight = _getContainSizes.height;
-
-
+      minCanvasWidth = _getAdjustedSizes.width;
+      minCanvasHeight = _getAdjustedSizes.height;
       canvasData.minWidth = minCanvasWidth;
       canvasData.minHeight = minCanvasHeight;
       canvasData.maxWidth = Infinity;
@@ -1397,10 +1319,9 @@ var render = {
     }
 
     if (positionLimited) {
-      if (viewMode) {
+      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);
@@ -1436,7 +1357,6 @@ var render = {
     var canvasData = this.canvasData,
         imageData = this.imageData;
 
-
     if (transformed) {
       var _getRotatedSizes = getRotatedSizes({
         width: imageData.naturalWidth * Math.abs(imageData.scaleX || 1),
@@ -1448,7 +1368,6 @@ var render = {
 
       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;
@@ -1469,22 +1388,18 @@ var render = {
 
     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, extend({
+    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) {
@@ -1494,20 +1409,18 @@ var render = {
   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);
-
-    extend(imageData, {
+    assign(imageData, {
       width: width,
       height: height,
       left: (canvasData.width - width) / 2,
       top: (canvasData.height - height) / 2
     });
-    setStyle(this.image, extend({
+    setStyle(this.image, assign({
       width: imageData.width,
       height: imageData.height
-    }, getTransforms(extend({
+    }, getTransforms(assign({
       translateX: imageData.left,
       translateY: imageData.top
     }, imageData))));
@@ -1519,8 +1432,7 @@ var render = {
   initCropBox: function initCropBox() {
     var options = this.options,
         canvasData = this.canvasData;
-    var aspectRatio = options.aspectRatio;
-
+    var aspectRatio = options.aspectRatio || options.initialAspectRatio;
     var autoCropArea = Number(options.autoCropArea) || 0.8;
     var cropBoxData = {
       width: canvasData.width,
@@ -1536,21 +1448,18 @@ var render = {
     }
 
     this.cropBoxData = cropBoxData;
-    this.limitCropBox(true, true);
+    this.limitCropBox(true, true); // Initialize auto crop area
 
-    // 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);
+    cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight); // The width/height of auto crop area must large than "minWidth/Height"
 
-    // 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 = extend({}, cropBoxData);
+    this.initialCropBoxData = assign({}, cropBoxData);
   },
   limitCropBox: function limitCropBox(sizeLimited, positionLimited) {
     var options = this.options,
@@ -1560,14 +1469,12 @@ var render = {
         limited = this.limited;
     var aspectRatio = options.aspectRatio;
 
-
     if (sizeLimited) {
       var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
       var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
-      var maxCropBoxWidth = Math.min(containerData.width, limited ? canvasData.width : containerData.width);
-      var maxCropBoxHeight = Math.min(containerData.height, limited ? canvasData.height : containerData.height);
+      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
 
-      // The min/maxCropBoxWidth/Height must be less than container's width/height
       minCropBoxWidth = Math.min(minCropBoxWidth, containerData.width);
       minCropBoxHeight = Math.min(minCropBoxHeight, containerData.height);
 
@@ -1589,9 +1496,9 @@ var render = {
         } else {
           maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
         }
-      }
+      } // The minWidth/Height must be less than maxWidth/Height
+
 
-      // The minWidth/Height must be less than maxWidth/Height
       cropBoxData.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
       cropBoxData.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
       cropBoxData.maxWidth = maxCropBoxWidth;
@@ -1617,7 +1524,6 @@ var render = {
         containerData = this.containerData,
         cropBoxData = this.cropBoxData;
 
-
     if (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
       cropBoxData.left = cropBoxData.oldLeft;
     }
@@ -1628,9 +1534,7 @@ var render = {
 
     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;
@@ -1641,7 +1545,7 @@ var render = {
       setData(this.face, DATA_ACTION, cropBoxData.width >= containerData.width && cropBoxData.height >= containerData.height ? ACTION_MOVE : ACTION_ALL);
     }
 
-    setStyle(this.cropBox, extend({
+    setStyle(this.cropBox, assign({
       width: cropBoxData.width,
       height: cropBoxData.height
     }, getTransforms({
@@ -1659,19 +1563,17 @@ var render = {
   },
   output: function output() {
     this.preview();
-
-    if (this.complete) {
-      dispatchEvent(this.element, EVENT_CROP, this.getData());
-    }
+    dispatchEvent(this.element, EVENT_CROP, this.getData());
   }
 };
 
 var preview = {
   initPreview: function initPreview() {
-    var crossOrigin = this.crossOrigin;
+    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) {
@@ -1679,25 +1581,30 @@ var preview = {
     }
 
     image.src = url;
+    image.alt = alt;
     this.viewBox.appendChild(image);
-    this.image2 = image;
+    this.viewBoxImage = image;
 
     if (!preview) {
       return;
     }
 
-    var previews = preview.querySelector ? [preview] : document.querySelectorAll(preview);
+    var previews = preview;
 
-    this.previews = previews;
+    if (typeof preview === 'string') {
+      previews = element.ownerDocument.querySelectorAll(preview);
+    } else if (preview.querySelector) {
+      previews = [preview];
+    }
 
-    each(previews, function (element) {
-      var img = document.createElement('img');
+    this.previews = previews;
+    forEach(previews, function (el) {
+      var img = document.createElement('img'); // Save the original size for recover
 
-      // Save the original size for recover
-      setData(element, DATA_PREVIEW, {
-        width: element.offsetWidth,
-        height: element.offsetHeight,
-        html: element.innerHTML
+      setData(el, DATA_PREVIEW, {
+        width: el.offsetWidth,
+        height: el.offsetHeight,
+        html: el.innerHTML
       });
 
       if (crossOrigin) {
@@ -1705,28 +1612,26 @@ var preview = {
       }
 
       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;"';
 
-      empty(element);
-      element.appendChild(img);
+      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() {
-    each(this.previews, function (element) {
+    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);
     });
@@ -1739,7 +1644,6 @@ var preview = {
         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;
 
@@ -1747,15 +1651,14 @@ var preview = {
       return;
     }
 
-    setStyle(this.image2, extend({
+    setStyle(this.viewBoxImage, assign({
       width: width,
       height: height
-    }, getTransforms(extend({
+    }, getTransforms(assign({
       translateX: -left,
       translateY: -top
     }, imageData))));
-
-    each(this.previews, function (element) {
+    forEach(this.previews, function (element) {
       var data = getData(element, DATA_PREVIEW);
       var originalWidth = data.width;
       var originalHeight = data.height;
@@ -1778,11 +1681,10 @@ var preview = {
         width: newWidth,
         height: newHeight
       });
-
-      setStyle(element.getElementsByTagName('img')[0], extend({
+      setStyle(element.getElementsByTagName('img')[0], assign({
         width: width * ratio,
         height: height * ratio
-      }, getTransforms(extend({
+      }, getTransforms(assign({
         translateX: -left * ratio,
         translateY: -top * ratio
       }, imageData))));
@@ -1796,7 +1698,6 @@ var events = {
         options = this.options,
         cropper = this.cropper;
 
-
     if (isFunction(options.cropstart)) {
       addListener(element, EVENT_CROP_START, options.cropstart);
     }
@@ -1817,21 +1718,24 @@ var events = {
       addListener(element, EVENT_ZOOM, options.zoom);
     }
 
-    addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = proxy(this.cropStart, this));
+    addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = this.cropStart.bind(this));
 
     if (options.zoomable && options.zoomOnWheel) {
-      addListener(cropper, EVENT_WHEEL, this.onWheel = proxy(this.wheel, this));
+      addListener(cropper, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
+        passive: false,
+        capture: true
+      });
     }
 
     if (options.toggleDragModeOnDblclick) {
-      addListener(cropper, EVENT_DBLCLICK, this.onDblclick = proxy(this.dblclick, this));
+      addListener(cropper, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
     }
 
-    addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove = proxy(this.cropMove, this));
-    addListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd = proxy(this.cropEnd, 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 = proxy(this.resize, this));
+      addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));
     }
   },
   unbind: function unbind() {
@@ -1839,7 +1743,6 @@ var events = {
         options = this.options,
         cropper = this.cropper;
 
-
     if (isFunction(options.cropstart)) {
       removeListener(element, EVENT_CROP_START, options.cropstart);
     }
@@ -1863,7 +1766,10 @@ var events = {
     removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);
 
     if (options.zoomable && options.zoomOnWheel) {
-      removeListener(cropper, EVENT_WHEEL, this.onWheel);
+      removeListener(cropper, EVENT_WHEEL, this.onWheel, {
+        passive: false,
+        capture: true
+      });
     }
 
     if (options.toggleDragModeOnDblclick) {
@@ -1884,20 +1790,18 @@ var handlers = {
     var options = this.options,
         container = this.container,
         containerData = this.containerData;
-
-    var minContainerWidth = Number(options.minContainerWidth) || 200;
-    var minContainerHeight = Number(options.minContainerHeight) || 100;
+    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;
+    var ratio = container.offsetWidth / containerData.width; // Resize when width changed or height changed
 
-    // Resize when width changed or height changed
     if (ratio !== 1 || container.offsetHeight !== containerData.height) {
-      var canvasData = void 0;
-      var cropBoxData = void 0;
+      var canvasData;
+      var cropBoxData;
 
       if (options.restore) {
         canvasData = this.getCanvasData();
@@ -1907,10 +1811,10 @@ var handlers = {
       this.render();
 
       if (options.restore) {
-        this.setCanvasData(each(canvasData, function (n, i) {
+        this.setCanvasData(forEach(canvasData, function (n, i) {
           canvasData[i] = n * ratio;
         }));
-        this.setCropBoxData(each(cropBoxData, function (n, i) {
+        this.setCropBoxData(forEach(cropBoxData, function (n, i) {
           cropBoxData[i] = n * ratio;
         }));
       }
@@ -1923,7 +1827,7 @@ var handlers = {
 
     this.setDragMode(hasClass(this.dragBox, CLASS_CROP) ? DRAG_MODE_MOVE : DRAG_MODE_CROP);
   },
-  wheel: function wheel(e) {
+  wheel: function wheel(event) {
     var _this = this;
 
     var ratio = Number(this.options.wheelZoomRatio) || 0.1;
@@ -1933,53 +1837,56 @@ var handlers = {
       return;
     }
 
-    e.preventDefault();
+    event.preventDefault(); // Limit wheel speed to prevent zoom too fast (#21)
 
-    // Limit wheel speed to prevent zoom too fast (#21)
     if (this.wheeling) {
       return;
     }
 
     this.wheeling = true;
-
     setTimeout(function () {
       _this.wheeling = false;
     }, 50);
 
-    if (e.deltaY) {
-      delta = e.deltaY > 0 ? 1 : -1;
-    } else if (e.wheelDelta) {
-      delta = -e.wheelDelta / 120;
-    } else if (e.detail) {
-      delta = e.detail > 0 ? 1 : -1;
+    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, e);
+    this.zoom(-delta * ratio, event);
   },
-  cropStart: function cropStart(e) {
-    if (this.disabled) {
+  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;
 
-    var action = void 0;
-
-    if (e.changedTouches) {
+    if (event.changedTouches) {
       // Handle touch event
-      each(e.changedTouches, function (touch) {
+      forEach(event.changedTouches, function (touch) {
         pointers[touch.identifier] = getPointer(touch);
       });
     } else {
       // Handle mouse event and pointer event
-      pointers[e.pointerId || 0] = getPointer(e);
+      pointers[event.pointerId || 0] = getPointer(event);
     }
 
     if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
       action = ACTION_ZOOM;
     } else {
-      action = getData(e.target, DATA_ACTION);
+      action = getData(event.target, DATA_ACTION);
     }
 
     if (!REGEXP_ACTIONS.test(action)) {
@@ -1987,14 +1894,14 @@ var handlers = {
     }
 
     if (dispatchEvent(this.element, EVENT_CROP_START, {
-      originalEvent: e,
+      originalEvent: event,
       action: action
     }) === false) {
       return;
-    }
+    } // This line is required for preventing page zooming in iOS browsers
 
-    e.preventDefault();
 
+    event.preventDefault();
     this.action = action;
     this.cropping = false;
 
@@ -2003,37 +1910,35 @@ var handlers = {
       addClass(this.dragBox, CLASS_MODAL);
     }
   },
-  cropMove: function cropMove(e) {
+  cropMove: function cropMove(event) {
     var action = this.action;
 
-
     if (this.disabled || !action) {
       return;
     }
 
     var pointers = this.pointers;
-
-
-    e.preventDefault();
+    event.preventDefault();
 
     if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
-      originalEvent: e,
+      originalEvent: event,
       action: action
     }) === false) {
       return;
     }
 
-    if (e.changedTouches) {
-      each(e.changedTouches, function (touch) {
-        extend(pointers[touch.identifier], getPointer(touch, true));
+    if (event.changedTouches) {
+      forEach(event.changedTouches, function (touch) {
+        // The first parameter should not be undefined (#432)
+        assign(pointers[touch.identifier] || {}, getPointer(touch, true));
       });
     } else {
-      extend(pointers[e.pointerId || 0], getPointer(e, true));
+      assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
     }
 
-    this.change(e);
+    this.change(event);
   },
-  cropEnd: function cropEnd(e) {
+  cropEnd: function cropEnd(event) {
     if (this.disabled) {
       return;
     }
@@ -2041,20 +1946,19 @@ var handlers = {
     var action = this.action,
         pointers = this.pointers;
 
-
-    if (e.changedTouches) {
-      each(e.changedTouches, function (touch) {
+    if (event.changedTouches) {
+      forEach(event.changedTouches, function (touch) {
         delete pointers[touch.identifier];
       });
     } else {
-      delete pointers[e.pointerId || 0];
+      delete pointers[event.pointerId || 0];
     }
 
     if (!action) {
       return;
     }
 
-    e.preventDefault();
+    event.preventDefault();
 
     if (!Object.keys(pointers).length) {
       this.action = '';
@@ -2066,14 +1970,14 @@ var handlers = {
     }
 
     dispatchEvent(this.element, EVENT_CROP_END, {
-      originalEvent: e,
+      originalEvent: event,
       action: action
     });
   }
 };
 
 var change = {
-  change: function change(e) {
+  change: function change(event) {
     var options = this.options,
         canvasData = this.canvasData,
         containerData = this.containerData,
@@ -2085,7 +1989,6 @@ var change = {
         top = cropBoxData.top,
         width = cropBoxData.width,
         height = cropBoxData.height;
-
     var right = left + width;
     var bottom = top + height;
     var minLeft = 0;
@@ -2093,17 +1996,15 @@ var change = {
     var maxWidth = containerData.width;
     var maxHeight = containerData.height;
     var renderable = true;
-    var offset = void 0;
+    var offset; // Locking aspect ratio in "free mode" by holding shift key
 
-    // Locking aspect ratio in "free mode" by holding shift key
-    if (!aspectRatio && e.shiftKey) {
+    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);
     }
@@ -2113,6 +2014,7 @@ var change = {
       x: pointer.endX - pointer.startX,
       y: pointer.endY - pointer.startY
     };
+
     var check = function check(side) {
       switch (side) {
         case ACTION_EAST:
@@ -2153,8 +2055,8 @@ var change = {
         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;
@@ -2164,14 +2066,15 @@ var change = {
         check(ACTION_EAST);
         width += range.x;
 
-        if (aspectRatio) {
-          height = width / aspectRatio;
-          top -= range.x / aspectRatio / 2;
-        }
-
         if (width < 0) {
           action = ACTION_WEST;
-          width = 0;
+          width = -width;
+          left -= width;
+        }
+
+        if (aspectRatio) {
+          height = width / aspectRatio;
+          top += (cropBoxData.height - height) / 2;
         }
 
         break;
@@ -2186,14 +2089,15 @@ var change = {
         height -= range.y;
         top += range.y;
 
-        if (aspectRatio) {
-          width = height * aspectRatio;
-          left += range.y * aspectRatio / 2;
-        }
-
         if (height < 0) {
           action = ACTION_SOUTH;
-          height = 0;
+          height = -height;
+          top -= height;
+        }
+
+        if (aspectRatio) {
+          width = height * aspectRatio;
+          left += (cropBoxData.width - width) / 2;
         }
 
         break;
@@ -2208,14 +2112,15 @@ var change = {
         width -= range.x;
         left += range.x;
 
-        if (aspectRatio) {
-          height = width / aspectRatio;
-          top += range.x / aspectRatio / 2;
-        }
-
         if (width < 0) {
           action = ACTION_EAST;
-          width = 0;
+          width = -width;
+          left -= width;
+        }
+
+        if (aspectRatio) {
+          height = width / aspectRatio;
+          top += (cropBoxData.height - height) / 2;
         }
 
         break;
@@ -2229,14 +2134,15 @@ var change = {
         check(ACTION_SOUTH);
         height += range.y;
 
-        if (aspectRatio) {
-          width = height * aspectRatio;
-          left -= range.y * aspectRatio / 2;
-        }
-
         if (height < 0) {
           action = ACTION_NORTH;
-          height = 0;
+          height = -height;
+          top -= height;
+        }
+
+        if (aspectRatio) {
+          width = height * aspectRatio;
+          left += (cropBoxData.width - width) / 2;
         }
 
         break;
@@ -2279,14 +2185,18 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_SOUTH_WEST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_NORTH_WEST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_SOUTH_EAST;
-          height = 0;
+          height = -height;
+          top -= height;
         }
 
         break;
@@ -2302,7 +2212,7 @@ var change = {
           height -= range.y;
           top += range.y;
           width = height * aspectRatio;
-          left += range.y * aspectRatio;
+          left += cropBoxData.width - width;
         } else {
           check(ACTION_NORTH);
           check(ACTION_WEST);
@@ -2332,14 +2242,18 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_SOUTH_EAST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_NORTH_EAST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_SOUTH_WEST;
-          height = 0;
+          height = -height;
+          top -= height;
         }
 
         break;
@@ -2382,14 +2296,18 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_NORTH_EAST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_SOUTH_EAST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_NORTH_WEST;
-          height = 0;
+          height = -height;
+          top -= height;
         }
 
         break;
@@ -2429,31 +2347,35 @@ var change = {
 
         if (width < 0 && height < 0) {
           action = ACTION_NORTH_WEST;
-          height = 0;
-          width = 0;
+          height = -height;
+          width = -width;
+          top -= height;
+          left -= width;
         } else if (width < 0) {
           action = ACTION_SOUTH_WEST;
-          width = 0;
+          width = -width;
+          left -= width;
         } else if (height < 0) {
           action = ACTION_NORTH_EAST;
-          height = 0;
+          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), e);
+        this.zoom(getMaxZoomRatio(pointers), event);
         renderable = false;
         break;
-
       // Create crop box
+
       case ACTION_CROP:
         if (!range.x || !range.y) {
           renderable = false;
@@ -2475,9 +2397,9 @@ var change = {
 
         if (range.y < 0) {
           top -= height;
-        }
+        } // Show the crop box if is hidden
+
 
-        // Show the crop box if is hidden
         if (!this.cropped) {
           removeClass(this.cropBox, CLASS_HIDDEN);
           this.cropped = true;
@@ -2499,10 +2421,10 @@ var change = {
       cropBoxData.top = top;
       this.action = action;
       this.renderCropBox();
-    }
+    } // Override
 
-    // Override
-    each(pointers, function (p) {
+
+    forEach(pointers, function (p) {
       p.startX = p.endX;
       p.startY = p.endY;
     });
@@ -2512,31 +2434,26 @@ var change = {
 var methods = {
   // Show the crop box manually
   crop: function crop() {
-    if (this.ready && !this.disabled) {
-      if (!this.cropped) {
-        this.cropped = true;
-        this.limitCropBox(true, true);
-
-        if (this.options.modal) {
-          addClass(this.dragBox, CLASS_MODAL);
-        }
+    if (this.ready && !this.cropped && !this.disabled) {
+      this.cropped = true;
+      this.limitCropBox(true, true);
 
-        removeClass(this.cropBox, CLASS_HIDDEN);
+      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 = extend({}, this.initialImageData);
-      this.canvasData = extend({}, this.initialCanvasData);
-      this.cropBoxData = extend({}, this.initialCropBoxData);
+      this.imageData = assign({}, this.initialImageData);
+      this.canvasData = assign({}, this.initialCanvasData);
+      this.cropBoxData = assign({}, this.initialCropBoxData);
       this.renderCanvas();
 
       if (this.cropped) {
@@ -2546,23 +2463,19 @@ var methods = {
 
     return this;
   },
-
-
   // Clear the crop box
   clear: function clear() {
     if (this.cropped && !this.disabled) {
-      extend(this.cropBoxData, {
+      assign(this.cropBoxData, {
         left: 0,
         top: 0,
         width: 0,
         height: 0
       });
-
       this.cropped = false;
       this.renderCropBox();
-      this.limitCanvas(true, true);
+      this.limitCanvas(true, true); // Render canvas after crop box rendered
 
-      // Render canvas after crop box rendered
       this.renderCanvas();
       removeClass(this.dragBox, CLASS_MODAL);
       addClass(this.cropBox, CLASS_HIDDEN);
@@ -2571,29 +2484,27 @@ var methods = {
     return this;
   },
 
-
   /**
    * Replace the image's src and rebuild the cropper
    * @param {string} url - The new URL.
-   * @param {boolean} [onlyColorChanged] - Indicate if the new image only changed color.
-   * @returns {Object} this
+   * @param {boolean} [hasSameSize] - Indicate if the new image has the same size as the old one.
+   * @returns {Cropper} this
    */
   replace: function replace(url) {
-    var onlyColorChanged = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+    var hasSameSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
 
     if (!this.disabled && url) {
       if (this.isImg) {
         this.element.src = url;
       }
 
-      if (onlyColorChanged) {
+      if (hasSameSize) {
         this.url = url;
         this.image.src = url;
 
         if (this.ready) {
-          this.image2.src = url;
-
-          each(this.previews, function (element) {
+          this.viewBoxImage.src = url;
+          forEach(this.previews, function (element) {
             element.getElementsByTagName('img')[0].src = url;
           });
         }
@@ -2602,30 +2513,26 @@ var methods = {
           this.replaced = true;
         }
 
-        // Clear previous data
         this.options.data = null;
+        this.uncreate();
         this.load(url);
       }
     }
 
     return this;
   },
-
-
   // Enable (unfreeze) the cropper
   enable: function enable() {
-    if (this.ready) {
+    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) {
+    if (this.ready && !this.disabled) {
       this.disabled = true;
       addClass(this.cropper, CLASS_DISABLED);
     }
@@ -2633,60 +2540,51 @@ var methods = {
     return this;
   },
 
-
-  // Destroy the cropper and remove the instance from the image
+  /**
+   * Destroy the cropper and remove the instance from the image
+   * @returns {Cropper} this
+   */
   destroy: function destroy() {
-    var element = this.element,
-        image = this.image;
+    var element = this.element;
 
+    if (!element[NAMESPACE]) {
+      return this;
+    }
 
-    if (this.loaded) {
-      if (this.isImg && this.replaced) {
-        element.src = this.originalUrl;
-      }
+    element[NAMESPACE] = undefined;
 
-      this.unbuild();
-      removeClass(element, CLASS_HIDDEN);
-    } else if (this.isImg) {
-      removeListener(element, EVENT_LOAD, this.onStart);
-    } else if (image) {
-      image.parentNode.removeChild(image);
+    if (this.isImg && this.replaced) {
+      element.src = this.originalUrl;
     }
 
-    removeData(element, NAMESPACE);
-
+    this.uncreate();
     return this;
   },
 
-
   /**
    * Move the canvas with relative offsets
    * @param {number} offsetX - The relative offset distance on the x-axis.
-   * @param {number} offsetY - The relative offset distance on the y-axis.
-   * @returns {Object} this
+   * @param {number} [offsetY=offsetX] - The relative offset distance on the y-axis.
+   * @returns {Cropper} this
    */
-  move: function move(offsetX, offsetY) {
-    var _canvasData = this.canvasData,
-        left = _canvasData.left,
-        top = _canvasData.top;
-
-
+  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 {Object} this
+   * @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);
 
@@ -2709,17 +2607,14 @@ var methods = {
     return this;
   },
 
-
   /**
    * Zoom the canvas with a relative ratio
    * @param {number} ratio - The target ratio.
    * @param {Event} _originalEvent - The original event if any.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   zoom: function zoom(ratio, _originalEvent) {
     var canvasData = this.canvasData;
-
-
     ratio = Number(ratio);
 
     if (ratio < 0) {
@@ -2731,13 +2626,12 @@ var methods = {
     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 {Object} this
+   * @returns {Cropper} this
    */
   zoomTo: function zoomTo(ratio, pivot, _originalEvent) {
     var options = this.options,
@@ -2746,8 +2640,6 @@ var methods = {
         height = canvasData.height,
         naturalWidth = canvasData.naturalWidth,
         naturalHeight = canvasData.naturalHeight;
-
-
     ratio = Number(ratio);
 
     if (ratio >= 0 && this.ready && !this.disabled && options.zoomable) {
@@ -2755,23 +2647,21 @@ var methods = {
       var newHeight = naturalHeight * ratio;
 
       if (dispatchEvent(this.element, EVENT_ZOOM, {
-        originalEvent: _originalEvent,
+        ratio: ratio,
         oldRatio: width / naturalWidth,
-        ratio: newWidth / 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
 
-        // 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)) {
@@ -2791,21 +2681,19 @@ var methods = {
     return this;
   },
 
-
   /**
    * Rotate the canvas with a relative degree
    * @param {number} degree - The rotate degree.
-   * @returns {Object} this
+   * @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 {Object} this
+   * @returns {Cropper} this
    */
   rotateTo: function rotateTo(degree) {
     degree = Number(degree);
@@ -2818,45 +2706,36 @@ var methods = {
     return this;
   },
 
-
   /**
    * Scale the image on the x-axis.
    * @param {number} scaleX - The scale ratio on the x-axis.
-   * @returns {Object} this
+   * @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 {Object} this
+   * @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 {Object} this
+   * @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);
 
@@ -2879,20 +2758,18 @@ var methods = {
     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$$1() {
+  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 = void 0;
+    var data;
 
     if (this.ready && this.cropped) {
       data = {
@@ -2901,13 +2778,21 @@ var methods = {
         width: cropBoxData.width,
         height: cropBoxData.height
       };
-
       var ratio = imageData.width / imageData.naturalWidth;
-
-      each(data, function (n, i) {
-        n /= ratio;
-        data[i] = rounded ? Math.round(n) : n;
+      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,
@@ -2929,23 +2814,17 @@ var methods = {
     return data;
   },
 
-
   /**
    * Set the cropped area position and size with new data
    * @param {Object} data - The new data.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
-  setData: function setData$$1(data) {
+  setData: function setData(data) {
     var options = this.options,
         imageData = this.imageData,
         canvasData = this.canvasData;
-
     var cropBoxData = {};
 
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
-
     if (this.ready && !this.disabled && isPlainObject(data)) {
       var transformed = false;
 
@@ -2996,36 +2875,32 @@ var methods = {
     return this;
   },
 
-
   /**
    * Get the container size data.
    * @returns {Object} The result container data.
    */
   getContainerData: function getContainerData() {
-    return this.ready ? extend({}, this.containerData) : {};
+    return this.ready ? assign({}, this.containerData) : {};
   },
 
-
   /**
    * Get the image position and size data.
    * @returns {Object} The result image data.
    */
   getImageData: function getImageData() {
-    return this.loaded ? extend({}, this.imageData) : {};
+    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) {
-      each(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
+      forEach(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
         data[n] = canvasData[n];
       });
     }
@@ -3033,21 +2908,15 @@ var methods = {
     return data;
   },
 
-
   /**
    * Set the canvas position and size with new data.
    * @param {Object} data - The new canvas data.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   setCanvasData: function setCanvasData(data) {
     var canvasData = this.canvasData;
     var aspectRatio = canvasData.aspectRatio;
 
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
-
     if (this.ready && !this.disabled && isPlainObject(data)) {
       if (isNumber(data.left)) {
         canvasData.left = data.left;
@@ -3071,15 +2940,13 @@ var methods = {
     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 = void 0;
+    var data;
 
     if (this.ready && this.cropped) {
       data = {
@@ -3093,22 +2960,16 @@ var methods = {
     return data || {};
   },
 
-
   /**
    * Set the crop box position and size with new data.
    * @param {Object} data - The new crop box data.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   setCropBoxData: function setCropBoxData(data) {
     var cropBoxData = this.cropBoxData;
     var aspectRatio = this.options.aspectRatio;
-
-    var widthChanged = void 0;
-    var heightChanged = void 0;
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
+    var widthChanged;
+    var heightChanged;
 
     if (this.ready && this.cropped && !this.disabled && isPlainObject(data)) {
       if (isNumber(data.left)) {
@@ -3143,7 +3004,6 @@ var methods = {
     return this;
   },
 
-
   /**
    * Get a canvas drawn the cropped image.
    * @param {Object} [options={}] - The config options.
@@ -3157,78 +3017,77 @@ var methods = {
     }
 
     var canvasData = this.canvasData;
+    var source = getSourceCanvas(this.image, this.imageData, canvasData, options); // Returns the source canvas if it is not cropped.
 
-    var source = getSourceCanvas(this.image, this.imageData, canvasData, options);
-
-    // Returns the source canvas if it is not cropped.
     if (!this.cropped) {
       return source;
     }
 
-    var _getData = this.getData(),
-        x = _getData.x,
-        y = _getData.y,
-        initialWidth = _getData.width,
-        initialHeight = _getData.height;
+    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 = getContainSizes({
+    var maxSizes = getAdjustedSizes({
       aspectRatio: aspectRatio,
       width: options.maxWidth || Infinity,
       height: options.maxHeight || Infinity
     });
-    var minSizes = getContainSizes({
+    var minSizes = getAdjustedSizes({
       aspectRatio: aspectRatio,
       width: options.minWidth || 0,
       height: options.minHeight || 0
-    });
+    }, 'cover');
 
-    var _getContainSizes = getContainSizes({
+    var _getAdjustedSizes = getAdjustedSizes({
       aspectRatio: aspectRatio,
-      width: options.width || initialWidth,
-      height: options.height || initialHeight
+      width: options.width || (ratio !== 1 ? source.width : initialWidth),
+      height: options.height || (ratio !== 1 ? source.height : initialHeight)
     }),
-        width = _getContainSizes.width,
-        height = _getContainSizes.height;
+        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 === undefined ? true : _options$imageSmoothi,
+        imageSmoothingEnabled = _options$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
+
 
-    // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
     var sourceWidth = source.width;
-    var sourceHeight = source.height;
+    var sourceHeight = source.height; // Source canvas parameters
 
-    // Source canvas parameters
-    var srcX = x;
-    var srcY = y;
-    var srcWidth = void 0;
-    var srcHeight = void 0;
+    var srcX = initialX;
+    var srcY = initialY;
+    var srcWidth;
+    var srcHeight; // Destination canvas parameters
 
-    // Destination canvas parameters
-    var dstX = void 0;
-    var dstY = void 0;
-    var dstWidth = void 0;
-    var dstHeight = void 0;
+    var dstX;
+    var dstY;
+    var dstWidth;
+    var dstHeight;
 
     if (srcX <= -initialWidth || srcX > sourceWidth) {
       srcX = 0;
@@ -3262,34 +3121,29 @@ var methods = {
       dstHeight = srcHeight;
     }
 
-    // All the numerical parameters should be integer for `drawImage`
-    // https://github.com/fengyuanchen/cropper/issues/476
-    var params = [srcX, srcY, srcWidth, srcHeight];
+    var params = [srcX, srcY, srcWidth, srcHeight]; // Avoid "IndexSizeError"
 
-    // 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) {
+
+    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 {Object} this
+   * @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;
@@ -3306,24 +3160,21 @@ var methods = {
     return this;
   },
 
-
   /**
    * Change the drag mode.
    * @param {string} mode - The new drag mode.
-   * @returns {Object} this
+   * @returns {Cropper} this
    */
   setDragMode: function setDragMode(mode) {
     var options = this.options,
         dragBox = this.dragBox,
         face = this.face;
 
-
-    if (this.loaded && !this.disabled) {
+    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);
@@ -3342,7 +3193,9 @@ var methods = {
 
 var AnotherCropper = WINDOW.Cropper;
 
-var Cropper = function () {
+var Cropper =
+/*#__PURE__*/
+function () {
   /**
    * Create a new Cropper.
    * @param {Element} element - The target element for cropping.
@@ -3350,58 +3203,50 @@ var Cropper = function () {
    */
   function Cropper(element) {
     var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
-    classCallCheck(this, Cropper);
+
+    _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 = extend({}, DEFAULTS, isPlainObject(options) && options);
-    this.complete = false;
+    this.options = assign({}, DEFAULTS, isPlainObject(options) && options);
     this.cropped = false;
     this.disabled = false;
-    this.isImg = false;
-    this.limited = false;
-    this.loaded = false;
+    this.pointers = {};
     this.ready = false;
+    this.reloading = false;
     this.replaced = false;
-    this.wheeling = false;
-    this.originalUrl = '';
-    this.canvasData = null;
-    this.cropBoxData = null;
-    this.previews = null;
-    this.pointers = {};
+    this.sized = false;
+    this.sizing = false;
     this.init();
   }
 
-  createClass(Cropper, [{
-    key: 'init',
+  _createClass(Cropper, [{
+    key: "init",
     value: function init() {
       var element = this.element;
-
       var tagName = element.tagName.toLowerCase();
-      var url = void 0;
+      var url;
 
-      if (getData(element, NAMESPACE)) {
+      if (element[NAMESPACE]) {
         return;
       }
 
-      setData(element, NAMESPACE, this);
+      element[NAMESPACE] = this;
 
       if (tagName === 'img') {
-        this.isImg = true;
+        this.isImg = true; // e.g.: "img/picture.jpg"
 
-        // e.g.: "img/picture.jpg"
         url = element.getAttribute('src') || '';
-        this.originalUrl = url;
+        this.originalUrl = url; // Stop when it's a blank image
 
-        // Stop when it's a blank image
         if (!url) {
           return;
-        }
+        } // e.g.: "http://example.com/img/picture.jpg"
+
 
-        // e.g.: "http://example.com/img/picture.jpg"
         url = element.src;
       } else if (tagName === 'canvas' && window.HTMLCanvasElement) {
         url = element.toDataURL();
@@ -3410,7 +3255,7 @@ var Cropper = function () {
       this.load(url);
     }
   }, {
-    key: 'load',
+    key: "load",
     value: function load(url) {
       var _this = this;
 
@@ -3420,59 +3265,88 @@ var Cropper = function () {
 
       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
+
 
-      // XMLHttpRequest disallows to open a Data URL in some browsers like IE11 and Safari
       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();
 
-      xhr.onerror = function () {
-        _this.clone();
+      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.open('GET', url);
       xhr.responseType = 'arraybuffer';
       xhr.withCredentials = element.crossOrigin === 'use-credentials';
       xhr.send();
     }
   }, {
-    key: 'read',
+    key: "read",
     value: function read(arrayBuffer) {
       var options = this.options,
-          imageData = this.imageData;
+          imageData = this.imageData; // Reset the orientation value to its default value 1
+      // as some iOS browsers will render image with its orientation
 
-      var orientation = getOrientation(arrayBuffer);
+      var orientation = resetAndGetOrientation(arrayBuffer);
       var rotate = 0;
       var scaleX = 1;
       var scaleY = 1;
 
       if (orientation > 1) {
-        this.url = arrayBufferToDataURL(arrayBuffer, 'image/jpeg');
+        // Generate a new URL which has the default orientation value
+        this.url = arrayBufferToDataURL(arrayBuffer, MIME_TYPE_JPEG);
 
         var _parseOrientation = parseOrientation(orientation);
 
@@ -3493,31 +3367,24 @@ var Cropper = function () {
       this.clone();
     }
   }, {
-    key: 'clone',
+    key: "clone",
     value: function clone() {
       var element = this.element,
           url = this.url;
-
-      var crossOrigin = void 0;
-      var crossOriginUrl = void 0;
+      var crossOrigin = element.crossOrigin;
+      var crossOriginUrl = url;
 
       if (this.options.checkCrossOrigin && isCrossOriginURL(url)) {
-        crossOrigin = element.crossOrigin;
-
-
-        if (crossOrigin) {
-          crossOriginUrl = url;
-        } else {
+        if (!crossOrigin) {
           crossOrigin = 'anonymous';
+        } // Bust cache when there is not a "crossOrigin" property (#519)
 
-          // Bust cache when there is not a "crossOrigin" property
-          crossOriginUrl = addTimestamp(url);
-        }
+
+        crossOriginUrl = addTimestamp(url);
       }
 
       this.crossOrigin = crossOrigin;
       this.crossOriginUrl = crossOriginUrl;
-
       var image = document.createElement('img');
 
       if (crossOrigin) {
@@ -3525,138 +3392,126 @@ var Cropper = function () {
       }
 
       image.src = crossOriginUrl || url;
-
-      var start = proxy(this.start, this);
-      var stop = proxy(this.stop, this);
-
+      image.alt = element.alt || 'The image to crop';
       this.image = image;
-      this.onStart = start;
-      this.onStop = stop;
-
-      if (this.isImg) {
-        if (element.complete) {
-          this.start();
-        } else {
-          addListener(element, EVENT_LOAD, start);
-        }
-      } else {
-        addListener(image, EVENT_LOAD, start);
-        addListener(image, EVENT_ERROR, stop);
-        addClass(image, CLASS_HIDE);
-        element.parentNode.insertBefore(image, element.nextSibling);
-      }
+      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(event) {
+    key: "start",
+    value: function start() {
       var _this2 = this;
 
-      var image = this.isImg ? this.element : this.image;
+      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.
 
-      if (event) {
-        removeListener(image, EVENT_LOAD, this.onStart);
-        removeListener(image, EVENT_ERROR, this.onStop);
-      }
+      var isIOSWebKit = WINDOW.navigator && /(?:iPad|iPhone|iPod).*?AppleWebKit/i.test(WINDOW.navigator.userAgent);
 
-      getImageNaturalSizes(image, function (naturalWidth, naturalHeight) {
-        extend(_this2.imageData, {
+      var done = function done(naturalWidth, naturalHeight) {
+        assign(_this2.imageData, {
           naturalWidth: naturalWidth,
           naturalHeight: naturalHeight,
           aspectRatio: naturalWidth / naturalHeight
         });
-        _this2.loaded = true;
+        _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',
+    key: "stop",
     value: function stop() {
       var image = this.image;
-
-
-      removeListener(image, EVENT_LOAD, this.onStart);
-      removeListener(image, EVENT_ERROR, this.onStop);
+      image.onload = null;
+      image.onerror = null;
       image.parentNode.removeChild(image);
       this.image = null;
     }
   }, {
-    key: 'build',
+    key: "build",
     value: function build() {
-      var _this3 = this;
-
-      if (!this.loaded) {
+      if (!this.sized || this.ready) {
         return;
       }
 
-      // Unbuild first when replace
-      if (this.ready) {
-        this.unbuild();
-      }
-
       var element = this.element,
           options = this.options,
-          image = this.image;
-
-      // Create cropper elements
+          image = this.image; // Create cropper elements
 
       var container = element.parentNode;
       var template = document.createElement('div');
-
       template.innerHTML = TEMPLATE;
-
-      var cropper = template.querySelector('.' + NAMESPACE + '-container');
-      var canvas = cropper.querySelector('.' + NAMESPACE + '-canvas');
-      var dragBox = cropper.querySelector('.' + NAMESPACE + '-drag-box');
-      var cropBox = cropper.querySelector('.' + NAMESPACE + '-crop-box');
-      var face = cropBox.querySelector('.' + NAMESPACE + '-face');
-
+      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('.' + NAMESPACE + '-view-box');
+      this.viewBox = cropper.querySelector(".".concat(NAMESPACE, "-view-box"));
       this.face = face;
+      canvas.appendChild(image); // Hide the original image
 
-      canvas.appendChild(image);
-
-      // Hide the original image
-      addClass(element, CLASS_HIDDEN);
+      addClass(element, CLASS_HIDDEN); // Inserts the cropper after to the current image
 
-      // Inserts the cropper after to the current image
-      container.insertBefore(cropper, element.nextSibling);
+      container.insertBefore(cropper, element.nextSibling); // Show the image if is hidden
 
-      // 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;
-
-      this.cropped = options.autoCrop;
-
-      if (options.autoCrop) {
-        if (options.modal) {
-          addClass(dragBox, CLASS_MODAL);
-        }
-      } else {
-        addClass(cropBox, CLASS_HIDDEN);
-      }
+      addClass(cropBox, CLASS_HIDDEN);
 
       if (!options.guides) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-dashed'), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-dashed")), CLASS_HIDDEN);
       }
 
       if (!options.center) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-center'), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-center")), CLASS_HIDDEN);
       }
 
       if (options.background) {
-        addClass(cropper, NAMESPACE + '-bg');
+        addClass(cropper, "".concat(NAMESPACE, "-bg"));
       }
 
       if (!options.highlight) {
@@ -3669,90 +3524,85 @@ var Cropper = function () {
       }
 
       if (!options.cropBoxResizable) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-line'), CLASS_HIDDEN);
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-point'), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-line")), CLASS_HIDDEN);
+        addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-point")), CLASS_HIDDEN);
       }
 
-      this.setDragMode(options.dragMode);
       this.render();
       this.ready = true;
-      this.setData(options.data);
+      this.setDragMode(options.dragMode);
 
-      // Call the "ready" option asynchronously to keep "image.cropper" is defined
-      this.completing = setTimeout(function () {
-        if (isFunction(options.ready)) {
-          addListener(element, EVENT_READY, options.ready, {
-            once: true
-          });
-        }
+      if (options.autoCrop) {
+        this.crop();
+      }
 
-        dispatchEvent(element, EVENT_READY);
-        dispatchEvent(element, EVENT_CROP, _this3.getData());
+      this.setData(options.data);
+
+      if (isFunction(options.ready)) {
+        addListener(element, EVENT_READY, options.ready, {
+          once: true
+        });
+      }
 
-        _this3.complete = true;
-      }, 0);
+      dispatchEvent(element, EVENT_READY);
     }
   }, {
-    key: 'unbuild',
+    key: "unbuild",
     value: function unbuild() {
       if (!this.ready) {
         return;
       }
 
-      if (!this.complete) {
-        clearTimeout(this.completing);
-      }
-
       this.ready = false;
-      this.complete = false;
-      this.initialImageData = null;
-
-      // Clear `initialCanvasData` is necessary when replace
-      this.initialCanvasData = null;
-      this.initialCropBoxData = null;
-      this.containerData = null;
-      this.canvasData = null;
-
-      // Clear `cropBoxData` is necessary when replace
-      this.cropBoxData = null;
       this.unbind();
       this.resetPreview();
-      this.previews = null;
-      this.viewBox = null;
-      this.cropBox = null;
-      this.dragBox = null;
-      this.canvas = null;
-      this.container = null;
       this.cropper.parentNode.removeChild(this.cropper);
-      this.cropper = null;
+      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',
+    key: "noConflict",
     value: function noConflict() {
       window.Cropper = AnotherCropper;
       return Cropper;
     }
-
     /**
      * Change the default options.
      * @param {Object} options - The new default options.
      */
 
   }, {
-    key: 'setDefaults',
+    key: "setDefaults",
     value: function setDefaults(options) {
-      extend(DEFAULTS, isPlainObject(options) && options);
+      assign(DEFAULTS, isPlainObject(options) && options);
     }
   }]);
+
   return Cropper;
 }();
 
-extend(Cropper.prototype, render, preview, events, handlers, change, methods);
+assign(Cropper.prototype, render, preview, events, handlers, change, methods);
 
 export default Cropper;
diff --git a/library/cropperjs/dist/cropper.js b/library/cropperjs/dist/cropper.js
index 0e837953c..5c49d7bdf 100644
--- a/library/cropperjs/dist/cropper.js
+++ b/library/cropperjs/dist/cropper.js
@@ -1,198 +1,40 @@
 /*!
- * Cropper.js v1.2.2
- * https://github.com/fengyuanchen/cropperjs
+ * Cropper.js v1.5.6
+ * https://fengyuanchen.github.io/cropperjs
  *
- * Copyright (c) 2015-2018 Chen Fengyuan
+ * Copyright 2015-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-01-03T13:27:18.062Z
+ * Date: 2019-10-04T04:33:48.372Z
  */
 
 (function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.Cropper = factory());
-}(this, (function () { 'use strict';
-
-var WINDOW = typeof window !== 'undefined' ? window : {};
-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 = NAMESPACE + '-crop';
-var CLASS_DISABLED = NAMESPACE + '-disabled';
-var CLASS_HIDDEN = NAMESPACE + '-hidden';
-var CLASS_HIDE = NAMESPACE + '-hide';
-var CLASS_INVISIBLE = NAMESPACE + '-invisible';
-var CLASS_MODAL = NAMESPACE + '-modal';
-var CLASS_MOVE = NAMESPACE + '-move';
-
-// Data keys
-var DATA_ACTION = 'action';
-var DATA_PREVIEW = '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_ERROR = 'error';
-var EVENT_LOAD = 'load';
-var EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown' : 'touchstart mousedown';
-var EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove' : 'touchmove mousemove';
-var EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';
-var EVENT_READY = 'ready';
-var EVENT_RESIZE = 'resize';
-var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
-var EVENT_ZOOM = 'zoom';
-
-// 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;
-
-var DEFAULTS = {
-  // Define the view mode of the cropper
-  viewMode: 0, // 0, 1, 2, 3
-
-  // Define the dragging mode of the cropper
-  dragMode: DRAG_MODE_CROP, // 'crop', 'move' or 'none'
-
-  // Define the aspect ratio of the crop box
-  aspectRatio: NaN,
-
-  // 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: true,
-
-  // Show the dashed lines for guiding
-  guides: true,
-
-  // Show the center indicator for guiding
-  center: true,
-
-  // Show the white modal to highlight the crop box
-  highlight: true,
-
-  // Show the grid background
-  background: true,
-
-  // 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: true,
-
-  // Enable to resize the crop box
-  cropBoxResizable: true,
-
-  // 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">' + '<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-action="e"></span>' + '<span class="cropper-line line-n" data-action="n"></span>' + '<span class="cropper-line line-w" data-action="w"></span>' + '<span class="cropper-line line-s" data-action="s"></span>' + '<span class="cropper-point point-e" data-action="e"></span>' + '<span class="cropper-point point-n" data-action="n"></span>' + '<span class="cropper-point point-w" data-action="w"></span>' + '<span class="cropper-point point-s" data-action="s"></span>' + '<span class="cropper-point point-ne" data-action="ne"></span>' + '<span class="cropper-point point-nw" data-action="nw"></span>' + '<span class="cropper-point point-sw" data-action="sw"></span>' + '<span class="cropper-point point-se" data-action="se"></span>' + '</div>' + '</div>';
-
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
-  return typeof obj;
-} : function (obj) {
-  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
-};
-
-
-
-
-
-
-
-
-
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global = global || self, global.Cropper = factory());
+}(this, function () { 'use strict';
+
+  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);
+  }
 
-var classCallCheck = function (instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError("Cannot call a class as a function");
+  function _classCallCheck(instance, Constructor) {
+    if (!(instance instanceof Constructor)) {
+      throw new TypeError("Cannot call a class as a function");
+    }
   }
-};
 
-var createClass = function () {
-  function defineProperties(target, props) {
+  function _defineProperties(target, props) {
     for (var i = 0; i < props.length; i++) {
       var descriptor = props[i];
       descriptor.enumerable = descriptor.enumerable || false;
@@ -202,2324 +44,2403 @@ var createClass = function () {
     }
   }
 
-  return function (Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps);
-    if (staticProps) defineProperties(Constructor, staticProps);
+  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: 0,
+    // 0, 1, 2, 3
+    // Define the dragging mode of the cropper
+    dragMode: DRAG_MODE_CROP,
+    // 'crop', 'move' or 'none'
+    // Define the initial aspect ratio of the crop box
+    initialAspectRatio: NaN,
+    // Define the aspect ratio of the crop box
+    aspectRatio: NaN,
+    // 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: true,
+    // Show the dashed lines for guiding
+    guides: true,
+    // Show the center indicator for guiding
+    center: true,
+    // Show the white modal to highlight the crop box
+    highlight: true,
+    // Show the grid background
+    background: true,
+    // 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: true,
+    // Enable to resize the crop box
+    cropBoxResizable: true,
+    // 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 toConsumableArray = function (arr) {
-  if (Array.isArray(arr)) {
-    for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
+  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`.
+   */
 
-    return arr2;
-  } else {
-    return Array.from(arr);
+  function isUndefined(value) {
+    return typeof value === 'undefined';
   }
-};
-
-/**
- * Check if the given value is not a number.
- */
-var isNaN = Number.isNaN || WINDOW.isNaN;
+  /**
+   * 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`.
+   */
 
-/**
- * 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 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 === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value !== null;
-}
+  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`.
+   */
 
-var hasOwnProperty = Object.prototype.hasOwnProperty;
+  function isPlainObject(value) {
+    if (!isObject(value)) {
+      return false;
+    }
 
-/**
- * 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`.
- */
+    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 isPlainObject(value) {
-  if (!isObject(value)) {
-    return 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.
+   */
 
-  try {
-    var _constructor = value.constructor;
-    var prototype = _constructor.prototype;
+  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 _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
-  } catch (e) {
-    return false;
+    return data;
   }
-}
-
-/**
- * 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';
-}
-
-/**
- * Iterate the given data.
- * @param {*} data - The data to iterate.
- * @param {Function} callback - The process function for each element.
- * @returns {*} The original data.
- */
-function each(data, callback) {
-  if (data && isFunction(callback)) {
-    if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
-        var length = data.length;
+  /**
+   * 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 i = void 0;
+  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];
+    }
 
-        for (i = 0; i < length; i += 1) {
-          if (callback.call(data, data[i], i, data) === false) {
-            break;
-          }
+    if (isObject(target) && args.length > 0) {
+      args.forEach(function (arg) {
+        if (isObject(arg)) {
+          Object.keys(arg).forEach(function (key) {
+            target[key] = arg[key];
+          });
         }
-      } else if (isObject(data)) {
-      Object.keys(data).forEach(function (key) {
-        callback.call(data, data[key], key, data);
       });
     }
-  }
 
-  return data;
-}
+    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.
+   */
 
-/**
- * Extend the given object.
- * @param {*} obj - The object to be extended.
- * @param {*} args - The rest objects which will be merged to the first object.
- * @returns {Object} The extended object.
- */
-function extend(obj) {
-  for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-    args[_key - 1] = arguments[_key];
+  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.
+   */
 
-  if (isObject(obj) && args.length > 0) {
-    if (Object.assign) {
-      return Object.assign.apply(Object, [obj].concat(args));
-    }
-
-    args.forEach(function (arg) {
-      if (isObject(arg)) {
-        Object.keys(arg).forEach(function (key) {
-          obj[key] = arg[key];
-        });
+  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.
+   */
 
-  return obj;
-}
-
-/**
- * Takes a function and returns a new one that will always have a particular context.
- * @param {Function} fn - The target function.
- * @param {Object} context - The new context for the function.
- * @returns {boolean} The new function.
- */
-function proxy(fn, context) {
-  for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
-    args[_key2 - 2] = arguments[_key2];
+  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.
+   */
 
-  return function () {
-    for (var _len3 = arguments.length, args2 = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
-      args2[_key3] = arguments[_key3];
+  function addClass(element, value) {
+    if (!value) {
+      return;
     }
 
-    return fn.apply(context, args.concat(args2));
-  };
-}
-
-var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/i;
-
-/**
- * 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;
-}
+    if (isNumber(element.length)) {
+      forEach(element, function (elem) {
+        addClass(elem, value);
+      });
+      return;
+    }
 
-var REGEXP_SUFFIX = /^(width|height|left|top|marginLeft|marginTop)$/;
+    if (element.classList) {
+      element.classList.add(value);
+      return;
+    }
 
-/**
- * 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;
+    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.
+   */
 
-  each(styles, function (value, property) {
-    if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
-      value += 'px';
+  function removeClass(element, value) {
+    if (!value) {
+      return;
     }
 
-    style[property] = value;
-  });
-}
+    if (isNumber(element.length)) {
+      forEach(element, function (elem) {
+        removeClass(elem, value);
+      });
+      return;
+    }
 
-/**
- * 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 (element.classList) {
+      element.classList.remove(value);
+      return;
+    }
 
-  if (isNumber(element.length)) {
-    each(element, function (elem) {
-      addClass(elem, 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.
+   */
 
-  if (element.classList) {
-    element.classList.add(value);
-    return;
-  }
+  function toggleClass(element, value, added) {
+    if (!value) {
+      return;
+    }
 
-  var className = element.className.trim();
+    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 (!className) {
-    element.className = value;
-  } else if (className.indexOf(value) < 0) {
-    element.className = className + ' ' + 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 (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.
+   */
 
-  if (isNumber(element.length)) {
-    each(element, function (elem) {
-      removeClass(elem, value);
-    });
-    return;
+  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.
+   */
 
-  if (element.classList) {
-    element.classList.remove(value);
-    return;
-  }
+  function getData(element, name) {
+    if (isObject(element[name])) {
+      return element[name];
+    }
 
-  if (element.className.indexOf(value) >= 0) {
-    element.className = element.className.replace(value, '');
-  }
-}
+    if (element.dataset) {
+      return element.dataset[name];
+    }
 
-/**
- * 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;
+    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.
+   */
 
-  if (isNumber(element.length)) {
-    each(element, function (elem) {
-      toggleClass(elem, value, added);
-    });
-    return;
+  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.
+   */
 
-  // IE10-11 doesn't support the second parameter of `classList.toggle`
-  if (added) {
-    addClass(element, value);
-  } else {
-    removeClass(element, value);
+  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 REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;
+  var onceSupported = function () {
+    var supported = false;
 
-/**
- * Hyphenate the given value.
- * @param {string} value - The value to hyphenate.
- * @returns {string} The hyphenated value.
- */
-function hyphenate(value) {
-  return value.replace(REGEXP_HYPHENATE, '$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];
-  } else if (element.dataset) {
-    return element.dataset[name];
-  }
+    if (IS_BROWSER) {
+      var once = false;
 
-  return element.getAttribute('data-' + hyphenate(name));
-}
+      var listener = function listener() {};
 
-/**
- * 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-' + hyphenate(name), data);
-  }
-}
+      var options = Object.defineProperty({}, 'once', {
+        get: function get() {
+          supported = true;
+          return once;
+        },
 
-/**
- * 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 (e) {
-      element[name] = null;
-    }
-  } else if (element.dataset) {
-    // #128 Safari not allows to delete dataset property
-    try {
-      delete element.dataset[name];
-    } catch (e) {
-      element.dataset[name] = null;
+        /**
+         * 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);
     }
-  } else {
-    element.removeAttribute('data-' + hyphenate(name));
-  }
-}
 
-var REGEXP_SPACES = /\s+/;
+    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.
+   */
+
 
-/**
- * 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] : {};
+  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 (!isFunction(listener)) {
-    return;
-  }
+        if (listeners && listeners[event] && listeners[event][listener]) {
+          handler = listeners[event][listener];
+          delete listeners[event][listener];
 
-  var types = type.trim().split(REGEXP_SPACES);
+          if (Object.keys(listeners[event]).length === 0) {
+            delete listeners[event];
+          }
+
+          if (Object.keys(listeners).length === 0) {
+            delete element.listeners;
+          }
+        }
+      }
 
-  if (types.length > 1) {
-    each(types, function (t) {
-      removeListener(element, t, listener, options);
+      element.removeEventListener(event, handler, options);
     });
-    return;
   }
+  /**
+   * 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.
+   */
 
-  if (element.removeEventListener) {
-    element.removeEventListener(type, listener, options);
-  } else if (element.detachEvent) {
-    element.detachEvent('on' + type, listener);
-  }
-}
-
-/**
- * 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] : {};
+  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;
 
-  if (!isFunction(_listener)) {
-    return;
-  }
+        _handler = function handler() {
+          delete listeners[event][listener];
+          element.removeEventListener(event, _handler, options);
 
-  var types = type.trim().split(REGEXP_SPACES);
+          for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+            args[_key2] = arguments[_key2];
+          }
 
-  if (types.length > 1) {
-    each(types, function (t) {
-      addListener(element, t, _listener, options);
-    });
-    return;
-  }
+          listener.apply(element, args);
+        };
+
+        if (!listeners[event]) {
+          listeners[event] = {};
+        }
 
-  if (options.once) {
-    var originalListener = _listener;
+        if (listeners[event][listener]) {
+          element.removeEventListener(event, listeners[event][listener], options);
+        }
 
-    _listener = function listener() {
-      for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
-        args[_key4] = arguments[_key4];
+        listeners[event][listener] = _handler;
+        element.listeners = listeners;
       }
 
-      removeListener(element, type, _listener, options);
-      return originalListener.apply(element, args);
-    };
+      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.
+   */
 
-  if (element.addEventListener) {
-    element.addEventListener(type, _listener, options);
-  } else if (element.attachEvent) {
-    element.attachEvent('on' + type, _listener);
-  }
-}
-
-/**
- * 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) {
-  if (element.dispatchEvent) {
-    var event = void 0;
+  function dispatchEvent(element, type, data) {
+    var event; // Event and CustomEvent on IE9-11 are global objects, not constructors
 
-    // Event and CustomEvent on IE9-11 are global objects, not constructors
     if (isFunction(Event) && isFunction(CustomEvent)) {
-      if (isUndefined(data)) {
-        event = new Event(type, {
-          bubbles: true,
-          cancelable: true
-        });
-      } else {
-        event = new CustomEvent(type, {
-          detail: data,
-          bubbles: true,
-          cancelable: true
-        });
-      }
-    } else if (isUndefined(data)) {
-      event = document.createEvent('Event');
-      event.initEvent(type, true, true);
+      event = new CustomEvent(type, {
+        detail: data,
+        bubbles: true,
+        cancelable: true
+      });
     } else {
       event = document.createEvent('CustomEvent');
       event.initCustomEvent(type, true, true, data);
     }
 
-    // IE9+
     return element.dispatchEvent(event);
-  } else if (element.fireEvent) {
-    // IE6-10 (native events only)
-    return element.fireEvent('on' + type);
   }
+  /**
+   * Get the offset base on the document.
+   * @param {Element} element - The target element.
+   * @returns {Object} The offset data.
+   */
 
-  return true;
-}
-
-/**
- * Get the offset base on the document.
- * @param {Element} element - The target element.
- * @returns {Object} The offset data.
- */
-function getOffset(element) {
-  var doc = document.documentElement;
-  var box = element.getBoundingClientRect();
-
-  return {
-    left: box.left + ((window.scrollX || doc && doc.scrollLeft || 0) - (doc && doc.clientLeft || 0)),
-    top: box.top + ((window.scrollY || doc && doc.scrollTop || 0) - (doc && doc.clientTop || 0))
-  };
-}
-
-/**
- * Empty an element.
- * @param {Element} element - The element to empty.
- */
-function empty(element) {
-  while (element.firstChild) {
-    element.removeChild(element.firstChild);
+  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`.
+   */
 
-var location = WINDOW.location;
+  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.
+   */
 
-var REGEXP_ORIGINS = /^(https?:)\/\/([^:/?#]+):?(\d*)/i;
+  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.
+   */
 
-/**
- * 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);
+  function getTransforms(_ref) {
+    var rotate = _ref.rotate,
+        scaleX = _ref.scaleX,
+        scaleY = _ref.scaleY,
+        translateX = _ref.translateX,
+        translateY = _ref.translateY;
+    var values = [];
 
-  return parts && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
-}
+    if (isNumber(translateX) && translateX !== 0) {
+      values.push("translateX(".concat(translateX, "px)"));
+    }
 
-/**
- * Add timestamp to the given URL.
- * @param {string} url - The target URL.
- * @returns {string} The result URL.
- */
-function addTimestamp(url) {
-  var timestamp = 'timestamp=' + new Date().getTime();
+    if (isNumber(translateY) && translateY !== 0) {
+      values.push("translateY(".concat(translateY, "px)"));
+    } // Rotate should come first before scale to match orientation transform
 
-  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;
+    if (isNumber(rotate) && rotate !== 0) {
+      values.push("rotate(".concat(rotate, "deg)"));
+    }
 
-  var values = [];
+    if (isNumber(scaleX) && scaleX !== 1) {
+      values.push("scaleX(".concat(scaleX, ")"));
+    }
 
-  if (isNumber(translateX) && translateX !== 0) {
-    values.push('translateX(' + translateX + 'px)');
-  }
+    if (isNumber(scaleY) && scaleY !== 1) {
+      values.push("scaleY(".concat(scaleY, ")"));
+    }
 
-  if (isNumber(translateY) && translateY !== 0) {
-    values.push('translateY(' + translateY + 'px)');
+    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.
+   */
 
-  // Rotate should come first before scale to match orientation transform
-  if (isNumber(rotate) && rotate !== 0) {
-    values.push('rotate(' + rotate + 'deg)');
+  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.
+   */
 
-  if (isNumber(scaleX) && scaleX !== 1) {
-    values.push('scaleX(' + scaleX + ')');
+  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.
+   */
 
-  if (isNumber(scaleY) && scaleY !== 1) {
-    values.push('scaleY(' + scaleY + ')');
+  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.
+   */
 
-  var transform = values.length ? values.join(' ') : 'none';
-
-  return {
-    WebkitTransform: transform,
-    msTransform: transform,
-    transform: transform
-  };
-}
+  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);
 
-var navigator = WINDOW.navigator;
+    if (isValidWidth && isValidHeight) {
+      var adjustedWidth = height * aspectRatio;
 
-var IS_SAFARI_OR_UIWEBVIEW = navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(navigator.userAgent);
+      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;
+    }
 
-/**
- * Get an image's natural sizes.
- * @param {string} image - The target image.
- * @param {Function} callback - The callback function.
- */
-function getImageNaturalSizes(image, callback) {
-  // Modern browsers (except Safari)
-  if (image.naturalWidth && !IS_SAFARI_OR_UIWEBVIEW) {
-    callback(image.naturalWidth, image.naturalHeight);
-    return;
+    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.
+   */
 
-  var newImage = document.createElement('img');
-  var body = document.body || document.documentElement;
-
-  newImage.onload = function () {
-    callback(newImage.width, newImage.height);
+  function getRotatedSizes(_ref5) {
+    var width = _ref5.width,
+        height = _ref5.height,
+        degree = _ref5.degree;
+    degree = Math.abs(degree) % 180;
 
-    if (!IS_SAFARI_OR_UIWEBVIEW) {
-      body.removeChild(newImage);
+    if (degree === 90) {
+      return {
+        width: height,
+        height: width
+      };
     }
-  };
 
-  newImage.src = image.src;
-
-  // iOS Safari will convert the image automatically
-  // with its orientation once append it into DOM (#279)
-  if (!IS_SAFARI_OR_UIWEBVIEW) {
-    newImage.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(newImage);
+    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.
+   */
 
-/**
- * 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 = extend({}, pointers);
-  var ratios = [];
-
-  each(pointers, function (pointer, pointerId) {
-    delete pointers2[pointerId];
-
-    each(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);
+  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
     });
-  });
-
-  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
-  };
-
-  if (endOnly) {
-    return end;
+    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.
+   */
 
-  return extend({
-    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;
-
-  each(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
-  };
-}
-
-/**
- * Check if the given value is a finite number.
- */
-var isFinite = Number.isFinite || WINDOW.isFinite;
-
-/**
- * Get the max sizes in a rectangle under the given aspect ratio.
- * @param {Object} data - The original sizes.
- * @returns {Object} The result sizes.
- */
-function getContainSizes(_ref4) {
-  var aspectRatio = _ref4.aspectRatio,
-      height = _ref4.height,
-      width = _ref4.width;
-
-  var isValidNumber = function isValidNumber(value) {
-    return isFinite(value) && value > 0;
-  };
+  function getStringFromCharCode(dataView, start, length) {
+    var str = '';
+    length += start;
 
-  if (isValidNumber(width) && isValidNumber(height)) {
-    if (height * aspectRatio > width) {
-      height = width / aspectRatio;
-    } else {
-      width = height * aspectRatio;
+    for (var i = start; i < length; i += 1) {
+      str += fromCharCode(dataView.getUint8(i));
     }
-  } else if (isValidNumber(width)) {
-    height = width / aspectRatio;
-  } else if (isValidNumber(height)) {
-    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;
+    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.
+   */
 
-  if (degree === 90) {
-    return {
-      width: height,
-      height: width
-    };
+  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.
+   */
 
-  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 imageNaturalWidth = _ref6.naturalWidth,
-      imageNaturalHeight = _ref6.naturalHeight,
-      _ref6$rotate = _ref6.rotate,
-      rotate = _ref6$rotate === undefined ? 0 : _ref6$rotate,
-      _ref6$scaleX = _ref6.scaleX,
-      scaleX = _ref6$scaleX === undefined ? 1 : _ref6$scaleX,
-      _ref6$scaleY = _ref6.scaleY,
-      scaleY = _ref6$scaleY === undefined ? 1 : _ref6$scaleY;
-  var aspectRatio = _ref7.aspectRatio,
-      naturalWidth = _ref7.naturalWidth,
-      naturalHeight = _ref7.naturalHeight;
-  var _ref8$fillColor = _ref8.fillColor,
-      fillColor = _ref8$fillColor === undefined ? 'transparent' : _ref8$fillColor,
-      _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,
-      imageSmoothingEnabled = _ref8$imageSmoothingE === undefined ? true : _ref8$imageSmoothingE,
-      _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,
-      imageSmoothingQuality = _ref8$imageSmoothingQ === undefined ? 'low' : _ref8$imageSmoothingQ,
-      _ref8$maxWidth = _ref8.maxWidth,
-      maxWidth = _ref8$maxWidth === undefined ? Infinity : _ref8$maxWidth,
-      _ref8$maxHeight = _ref8.maxHeight,
-      maxHeight = _ref8$maxHeight === undefined ? Infinity : _ref8$maxHeight,
-      _ref8$minWidth = _ref8.minWidth,
-      minWidth = _ref8$minWidth === undefined ? 0 : _ref8$minWidth,
-      _ref8$minHeight = _ref8.minHeight,
-      minHeight = _ref8$minHeight === undefined ? 0 : _ref8$minHeight;
-
-  var canvas = document.createElement('canvas');
-  var context = canvas.getContext('2d');
-  var maxSizes = getContainSizes({
-    aspectRatio: aspectRatio,
-    width: maxWidth,
-    height: maxHeight
-  });
-  var minSizes = getContainSizes({
-    aspectRatio: aspectRatio,
-    width: minWidth,
-    height: minHeight
-  });
-  var width = Math.min(maxSizes.width, Math.max(minSizes.width, naturalWidth));
-  var height = Math.min(maxSizes.height, Math.max(minSizes.height, naturalHeight));
-  var params = [-imageNaturalWidth / 2, -imageNaturalHeight / 2, imageNaturalWidth, imageNaturalHeight];
-
-  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 arrayBufferToDataURL(arrayBuffer, mimeType) {
+    var chunks = []; // Chunk Typed Array for better performance (#435)
 
-function getStringFromCharCode(dataView, start, length) {
-  var str = '';
-  var i = void 0;
+    var chunkSize = 8192;
+    var uint8 = new Uint8Array(arrayBuffer);
 
-  length += start;
+    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);
+    }
 
-  for (i = start; i < length; i += 1) {
-    str += fromCharCode(dataView.getUint8(i));
+    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.
+   */
 
-  return str;
-}
+  function resetAndGetOrientation(arrayBuffer) {
+    var dataView = new DataView(arrayBuffer);
+    var orientation; // Ignores range error when the image does not have correct Exif information
 
-var REGEXP_DATA_URL_HEAD = /^data:.*,/;
+    try {
+      var littleEndian;
+      var app1Start;
+      var ifdStart; // Only handle JPEG image (start by 0xFFD8)
 
-/**
- * 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);
-
-  each(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 uint8 = new Uint8Array(arrayBuffer);
-  var data = '';
-
-  // TypedArray.prototype.forEach is not supported in some browsers.
-  each(uint8, function (value) {
-    data += fromCharCode(value);
-  });
-
-  return 'data:' + mimeType + ';base64,' + btoa(data);
-}
-
-/**
- * Get orientation value from given array buffer.
- * @param {ArrayBuffer} arrayBuffer - The array buffer to read.
- * @returns {number} The read orientation value.
- */
-function getOrientation(arrayBuffer) {
-  var dataView = new DataView(arrayBuffer);
-  var orientation = void 0;
-  var littleEndian = void 0;
-  var app1Start = void 0;
-  var ifdStart = void 0;
-
-  // 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 < length) {
-      if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
-        app1Start = offset;
-        break;
-      }
+      if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
+        var length = dataView.byteLength;
+        var offset = 2;
 
-      offset += 1;
-    }
-  }
+        while (offset + 1 < length) {
+          if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
+            app1Start = offset;
+            break;
+          }
 
-  if (app1Start) {
-    var exifIDCode = app1Start + 4;
-    var tiffOffset = app1Start + 10;
+          offset += 1;
+        }
+      }
 
-    if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
-      var endianness = dataView.getUint16(tiffOffset);
+      if (app1Start) {
+        var exifIDCode = app1Start + 4;
+        var tiffOffset = app1Start + 10;
 
-      littleEndian = endianness === 0x4949;
+        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 (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 (firstIFDOffset >= 0x00000008) {
+                  ifdStart = tiffOffset + firstIFDOffset;
+                }
+              }
             }
-          }
         }
-    }
-  }
-
-  if (ifdStart) {
-    var _length = dataView.getUint16(ifdStart, littleEndian);
-    var _offset = void 0;
-    var i = void 0;
-
-    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);
+      if (ifdStart) {
+        var _length = dataView.getUint16(ifdStart, littleEndian);
 
-          // Override the orientation with its default value
-          dataView.setUint16(_offset, 1, littleEndian);
-          break;
-        }
-    }
-  }
+        var _offset;
 
-  return orientation;
-}
+        var i;
 
-/**
- * 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:
-  }
+        for (i = 0; i < _length; i += 1) {
+          _offset = ifdStart + i * 12 + 2;
 
-  return {
-    rotate: rotate,
-    scaleX: scaleX,
-    scaleY: scaleY
-  };
-}
+          if (dataView.getUint16(_offset, littleEndian) === 0x0112
+          /* Orientation */
+          ) {
+              // 8 is the offset of the current tag's value
+              _offset += 8; // Get the original orientation value
 
-var render = {
-  render: function render() {
-    this.initContainer();
-    this.initCanvas();
-    this.initCropBox();
-    this.renderCanvas();
+              orientation = dataView.getUint16(_offset, littleEndian); // Override the orientation with its default value
 
-    if (this.cropped) {
-      this.renderCropBox();
+              dataView.setUint16(_offset, 1, littleEndian);
+              break;
+            }
+        }
+      }
+    } catch (error) {
+      orientation = 1;
     }
-  },
-  initContainer: function initContainer() {
-    var element = this.element,
-        options = this.options,
-        container = this.container,
-        cropper = this.cropper;
 
+    return orientation;
+  }
+  /**
+   * Parse Exif Orientation value.
+   * @param {number} orientation - The orientation to parse.
+   * @returns {Object} The parsed result.
+   */
 
-    addClass(cropper, CLASS_HIDDEN);
-    removeClass(element, CLASS_HIDDEN);
+  function parseOrientation(orientation) {
+    var rotate = 0;
+    var scaleX = 1;
+    var scaleY = 1;
 
-    var containerData = {
-      width: Math.max(container.offsetWidth, Number(options.minContainerWidth) || 200),
-      height: Math.max(container.offsetHeight, Number(options.minContainerHeight) || 100)
-    };
+    switch (orientation) {
+      // Flip horizontal
+      case 2:
+        scaleX = -1;
+        break;
+      // Rotate left 180°
 
-    this.containerData = containerData;
+      case 3:
+        rotate = -180;
+        break;
+      // Flip vertical
 
-    setStyle(cropper, {
-      width: containerData.width,
-      height: containerData.height
-    });
+      case 4:
+        scaleY = -1;
+        break;
+      // Flip vertical and rotate right 90°
 
-    addClass(element, CLASS_HIDDEN);
-    removeClass(cropper, CLASS_HIDDEN);
-  },
+      case 5:
+        rotate = 90;
+        scaleY = -1;
+        break;
+      // Rotate right 90°
 
+      case 6:
+        rotate = 90;
+        break;
+      // Flip horizontal and rotate right 90°
 
-  // Canvas (image wrapper)
-  initCanvas: function initCanvas() {
-    var containerData = this.containerData,
-        imageData = this.imageData;
-    var viewMode = this.options.viewMode;
+      case 7:
+        rotate = 90;
+        scaleX = -1;
+        break;
+      // Rotate left 90°
 
-    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;
+      case 8:
+        rotate = -90;
+        break;
 
-    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;
+      default:
     }
 
-    var canvasData = {
-      aspectRatio: aspectRatio,
-      naturalWidth: naturalWidth,
-      naturalHeight: naturalHeight,
-      width: canvasWidth,
-      height: canvasHeight
+    return {
+      rotate: rotate,
+      scaleX: scaleX,
+      scaleY: scaleY
     };
+  }
 
-    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 = extend({}, imageData);
-    this.initialCanvasData = extend({}, 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);
+  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) {
-          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;
-          }
+          canvasWidth = containerData.height * aspectRatio;
+        } else {
+          canvasHeight = containerData.width / aspectRatio;
         }
+      } else if (viewMode === 3) {
+        canvasHeight = containerData.width / aspectRatio;
+      } else {
+        canvasWidth = containerData.height * aspectRatio;
       }
 
-      var _getContainSizes = getContainSizes({
+      var canvasData = {
         aspectRatio: aspectRatio,
-        width: minCanvasWidth,
-        height: minCanvasHeight
-      });
-
-      minCanvasWidth = _getContainSizes.width;
-      minCanvasHeight = _getContainSizes.height;
-
-
-      canvasData.minWidth = minCanvasWidth;
-      canvasData.minHeight = minCanvasHeight;
-      canvasData.maxWidth = Infinity;
-      canvasData.maxHeight = Infinity;
-    }
-
-    if (positionLimited) {
-      if (viewMode) {
-        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);
+        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;
+            }
+          }
+        }
 
-            if (canvasData.height >= containerData.height) {
-              canvasData.minTop = Math.min(0, newCanvasTop);
-              canvasData.maxTop = Math.max(0, newCanvasTop);
+        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;
         }
-      } 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;
-
+    },
+    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 (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 (canvasData.width > canvasData.maxWidth || canvasData.width < canvasData.minWidth) {
-      canvasData.left = canvasData.oldLeft;
-    }
+      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 (canvasData.height > canvasData.maxHeight || canvasData.height < canvasData.minHeight) {
-      canvasData.top = canvasData.oldTop;
-    }
+      if (aspectRatio) {
+        if (canvasData.height * aspectRatio > canvasData.width) {
+          cropBoxData.height = cropBoxData.width / aspectRatio;
+        } else {
+          cropBoxData.width = cropBoxData.height * aspectRatio;
+        }
+      }
 
-    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.cropBoxData = cropBoxData;
+      this.limitCropBox(true, true); // Initialize auto crop area
 
-    this.limitCanvas(false, true);
+      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"
 
-    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;
+      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;
 
-    setStyle(this.canvas, extend({
-      width: canvasData.width,
-      height: canvasData.height
-    }, getTransforms({
-      translateX: canvasData.left,
-      translateY: canvasData.top
-    })));
+      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
 
-    this.renderImage(changed);
+        minCropBoxWidth = Math.min(minCropBoxWidth, containerData.width);
+        minCropBoxHeight = Math.min(minCropBoxHeight, containerData.height);
 
-    if (this.cropped && this.limited) {
-      this.limitCropBox(true, true);
-    }
-  },
-  renderImage: function renderImage(changed) {
-    var canvasData = this.canvasData,
-        imageData = this.imageData;
+        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;
+          }
 
-    var width = imageData.naturalWidth * (canvasData.width / canvasData.naturalWidth);
-    var height = imageData.naturalHeight * (canvasData.height / canvasData.naturalHeight);
+          if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
+            maxCropBoxHeight = maxCropBoxWidth / aspectRatio;
+          } else {
+            maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
+          }
+        } // The minWidth/Height must be less than maxWidth/Height
 
-    extend(imageData, {
-      width: width,
-      height: height,
-      left: (canvasData.width - width) / 2,
-      top: (canvasData.height - height) / 2
-    });
-    setStyle(this.image, extend({
-      width: imageData.width,
-      height: imageData.height
-    }, getTransforms(extend({
-      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;
-
-    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;
+        cropBoxData.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
+        cropBoxData.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
+        cropBoxData.maxWidth = maxCropBoxWidth;
+        cropBoxData.maxHeight = maxCropBoxHeight;
       }
-    }
-
-    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 = extend({}, 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 = Math.min(containerData.width, limited ? canvasData.width : containerData.width);
-      var maxCropBoxHeight = Math.min(containerData.height, limited ? canvasData.height : 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;
+      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 {
-          maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
+          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;
 
-      // 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 (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
+        cropBoxData.left = cropBoxData.oldLeft;
+      }
 
-    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;
+      if (cropBoxData.height > cropBoxData.maxHeight || cropBoxData.height < cropBoxData.minHeight) {
+        cropBoxData.top = cropBoxData.oldTop;
       }
-    }
-  },
-  renderCropBox: function renderCropBox() {
-    var options = this.options,
-        containerData = this.containerData,
-        cropBoxData = this.cropBoxData;
 
+      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 (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
-      cropBoxData.left = cropBoxData.oldLeft;
-    }
+      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);
+      }
 
-    if (cropBoxData.height > cropBoxData.maxHeight || cropBoxData.height < cropBoxData.minHeight) {
-      cropBoxData.top = cropBoxData.oldTop;
-    }
+      setStyle(this.cropBox, assign({
+        width: cropBoxData.width,
+        height: cropBoxData.height
+      }, getTransforms({
+        translateX: cropBoxData.left,
+        translateY: cropBoxData.top
+      })));
 
-    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, extend({
-      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();
+      if (this.cropped && this.limited) {
+        this.limitCanvas(true, true);
+      }
 
-    if (this.complete) {
+      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');
 
-var preview = {
-  initPreview: function initPreview() {
-    var crossOrigin = this.crossOrigin;
-    var preview = this.options.preview;
+      if (crossOrigin) {
+        image.crossOrigin = crossOrigin;
+      }
 
-    var url = crossOrigin ? this.crossOriginUrl : this.url;
-    var image = document.createElement('img');
+      image.src = url;
+      image.alt = alt;
+      this.viewBox.appendChild(image);
+      this.viewBoxImage = image;
 
-    if (crossOrigin) {
-      image.crossOrigin = crossOrigin;
-    }
+      if (!preview) {
+        return;
+      }
 
-    image.src = url;
-    this.viewBox.appendChild(image);
-    this.image2 = image;
+      var previews = preview;
 
-    if (!preview) {
-      return;
-    }
+      if (typeof preview === 'string') {
+        previews = element.ownerDocument.querySelectorAll(preview);
+      } else if (preview.querySelector) {
+        previews = [preview];
+      }
 
-    var previews = preview.querySelector ? [preview] : document.querySelectorAll(preview);
+      this.previews = previews;
+      forEach(previews, function (el) {
+        var img = document.createElement('img'); // Save the original size for recover
 
-    this.previews = previews;
+        setData(el, DATA_PREVIEW, {
+          width: el.offsetWidth,
+          height: el.offsetHeight,
+          html: el.innerHTML
+        });
 
-    each(previews, function (element) {
-      var img = document.createElement('img');
+        if (crossOrigin) {
+          img.crossOrigin = crossOrigin;
+        }
 
-      // Save the original size for recover
-      setData(element, DATA_PREVIEW, {
-        width: element.offsetWidth,
-        height: element.offsetHeight,
-        html: element.innerHTML
+        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);
       });
-
-      if (crossOrigin) {
-        img.crossOrigin = crossOrigin;
+    },
+    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;
       }
 
-      img.src = url;
+      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;
+        }
 
-      /**
-       * 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;"';
+        if (cropBoxHeight && newHeight > originalHeight) {
+          ratio = originalHeight / cropBoxHeight;
+          newWidth = cropBoxWidth * ratio;
+          newHeight = originalHeight;
+        }
 
-      empty(element);
-      element.appendChild(img);
-    });
-  },
-  resetPreview: function resetPreview() {
-    each(this.previews, function (element) {
-      var data = getData(element, DATA_PREVIEW);
-
-      setStyle(element, {
-        width: data.width,
-        height: data.height
+        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))));
       });
-
-      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.image2, extend({
-      width: width,
-      height: height
-    }, getTransforms(extend({
-      translateX: -left,
-      translateY: -top
-    }, imageData))));
+  var events = {
+    bind: function bind() {
+      var element = this.element,
+          options = this.options,
+          cropper = this.cropper;
 
-    each(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 (isFunction(options.cropstart)) {
+        addListener(element, EVENT_CROP_START, options.cropstart);
+      }
 
-      if (cropBoxWidth) {
-        ratio = originalWidth / cropBoxWidth;
-        newHeight = cropBoxHeight * ratio;
+      if (isFunction(options.cropmove)) {
+        addListener(element, EVENT_CROP_MOVE, options.cropmove);
       }
 
-      if (cropBoxHeight && newHeight > originalHeight) {
-        ratio = originalHeight / cropBoxHeight;
-        newWidth = cropBoxWidth * ratio;
-        newHeight = originalHeight;
+      if (isFunction(options.cropend)) {
+        addListener(element, EVENT_CROP_END, options.cropend);
       }
 
-      setStyle(element, {
-        width: newWidth,
-        height: newHeight
-      });
+      if (isFunction(options.crop)) {
+        addListener(element, EVENT_CROP, options.crop);
+      }
 
-      setStyle(element.getElementsByTagName('img')[0], extend({
-        width: width * ratio,
-        height: height * ratio
-      }, getTransforms(extend({
-        translateX: -left * ratio,
-        translateY: -top * ratio
-      }, imageData))));
-    });
-  }
-};
+      if (isFunction(options.zoom)) {
+        addListener(element, EVENT_ZOOM, options.zoom);
+      }
 
-var events = {
-  bind: function bind() {
-    var element = this.element,
-        options = this.options,
-        cropper = this.cropper;
+      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 (isFunction(options.cropstart)) {
-      addListener(element, EVENT_CROP_START, options.cropstart);
-    }
+      if (options.toggleDragModeOnDblclick) {
+        addListener(cropper, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
+      }
 
-    if (isFunction(options.cropmove)) {
-      addListener(element, EVENT_CROP_MOVE, options.cropmove);
-    }
+      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 (isFunction(options.cropend)) {
-      addListener(element, EVENT_CROP_END, options.cropend);
-    }
+      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.crop)) {
-      addListener(element, EVENT_CROP, options.crop);
-    }
+      if (isFunction(options.cropstart)) {
+        removeListener(element, EVENT_CROP_START, options.cropstart);
+      }
 
-    if (isFunction(options.zoom)) {
-      addListener(element, EVENT_ZOOM, options.zoom);
-    }
+      if (isFunction(options.cropmove)) {
+        removeListener(element, EVENT_CROP_MOVE, options.cropmove);
+      }
 
-    addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = proxy(this.cropStart, this));
+      if (isFunction(options.cropend)) {
+        removeListener(element, EVENT_CROP_END, options.cropend);
+      }
 
-    if (options.zoomable && options.zoomOnWheel) {
-      addListener(cropper, EVENT_WHEEL, this.onWheel = proxy(this.wheel, this));
-    }
+      if (isFunction(options.crop)) {
+        removeListener(element, EVENT_CROP, options.crop);
+      }
 
-    if (options.toggleDragModeOnDblclick) {
-      addListener(cropper, EVENT_DBLCLICK, this.onDblclick = proxy(this.dblclick, this));
-    }
+      if (isFunction(options.zoom)) {
+        removeListener(element, EVENT_ZOOM, options.zoom);
+      }
 
-    addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove = proxy(this.cropMove, this));
-    addListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd = proxy(this.cropEnd, this));
+      removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);
 
-    if (options.responsive) {
-      addListener(window, EVENT_RESIZE, this.onResize = proxy(this.resize, this));
-    }
-  },
-  unbind: function unbind() {
-    var element = this.element,
-        options = this.options,
-        cropper = this.cropper;
+      if (options.zoomable && options.zoomOnWheel) {
+        removeListener(cropper, EVENT_WHEEL, this.onWheel, {
+          passive: false,
+          capture: true
+        });
+      }
 
+      if (options.toggleDragModeOnDblclick) {
+        removeListener(cropper, EVENT_DBLCLICK, this.onDblclick);
+      }
 
-    if (isFunction(options.cropstart)) {
-      removeListener(element, EVENT_CROP_START, options.cropstart);
-    }
+      removeListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove);
+      removeListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd);
 
-    if (isFunction(options.cropmove)) {
-      removeListener(element, EVENT_CROP_MOVE, options.cropmove);
+      if (options.responsive) {
+        removeListener(window, EVENT_RESIZE, this.onResize);
+      }
     }
+  };
 
-    if (isFunction(options.cropend)) {
-      removeListener(element, EVENT_CROP_END, options.cropend);
-    }
+  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 (isFunction(options.crop)) {
-      removeListener(element, EVENT_CROP, options.crop);
-    }
+      if (this.disabled || containerData.width <= minContainerWidth || containerData.height <= minContainerHeight) {
+        return;
+      }
 
-    if (isFunction(options.zoom)) {
-      removeListener(element, EVENT_ZOOM, options.zoom);
-    }
+      var ratio = container.offsetWidth / containerData.width; // Resize when width changed or height changed
 
-    removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);
+      if (ratio !== 1 || container.offsetHeight !== containerData.height) {
+        var canvasData;
+        var cropBoxData;
 
-    if (options.zoomable && options.zoomOnWheel) {
-      removeListener(cropper, EVENT_WHEEL, this.onWheel);
-    }
+        if (options.restore) {
+          canvasData = this.getCanvasData();
+          cropBoxData = this.getCropBoxData();
+        }
 
-    if (options.toggleDragModeOnDblclick) {
-      removeListener(cropper, EVENT_DBLCLICK, this.onDblclick);
-    }
+        this.render();
 
-    removeListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove);
-    removeListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd);
+        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;
+      }
 
-    if (options.responsive) {
-      removeListener(window, EVENT_RESIZE, this.onResize);
-    }
-  }
-};
+      this.setDragMode(hasClass(this.dragBox, CLASS_CROP) ? DRAG_MODE_MOVE : DRAG_MODE_CROP);
+    },
+    wheel: function wheel(event) {
+      var _this = this;
 
-var handlers = {
-  resize: function resize() {
-    var options = this.options,
-        container = this.container,
-        containerData = this.containerData;
+      var ratio = Number(this.options.wheelZoomRatio) || 0.1;
+      var delta = 1;
 
-    var minContainerWidth = Number(options.minContainerWidth) || 200;
-    var minContainerHeight = Number(options.minContainerHeight) || 100;
+      if (this.disabled) {
+        return;
+      }
 
-    if (this.disabled || containerData.width <= minContainerWidth || containerData.height <= minContainerHeight) {
-      return;
-    }
+      event.preventDefault(); // Limit wheel speed to prevent zoom too fast (#21)
 
-    var ratio = container.offsetWidth / containerData.width;
+      if (this.wheeling) {
+        return;
+      }
 
-    // Resize when width changed or height changed
-    if (ratio !== 1 || container.offsetHeight !== containerData.height) {
-      var canvasData = void 0;
-      var cropBoxData = void 0;
+      this.wheeling = true;
+      setTimeout(function () {
+        _this.wheeling = false;
+      }, 50);
 
-      if (options.restore) {
-        canvasData = this.getCanvasData();
-        cropBoxData = this.getCropBoxData();
+      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.render();
+      this.zoom(-delta * ratio, event);
+    },
+    cropStart: function cropStart(event) {
+      var buttons = event.buttons,
+          button = event.button;
 
-      if (options.restore) {
-        this.setCanvasData(each(canvasData, function (n, i) {
-          canvasData[i] = n * ratio;
-        }));
-        this.setCropBoxData(each(cropBoxData, function (n, i) {
-          cropBoxData[i] = n * ratio;
-        }));
+      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;
       }
-    }
-  },
-  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(e) {
-    var _this = this;
+      var options = this.options,
+          pointers = this.pointers;
+      var action;
 
-    var ratio = Number(this.options.wheelZoomRatio) || 0.1;
-    var delta = 1;
+      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 (this.disabled) {
-      return;
-    }
+      if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
+        action = ACTION_ZOOM;
+      } else {
+        action = getData(event.target, DATA_ACTION);
+      }
 
-    e.preventDefault();
+      if (!REGEXP_ACTIONS.test(action)) {
+        return;
+      }
 
-    // Limit wheel speed to prevent zoom too fast (#21)
-    if (this.wheeling) {
-      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
 
-    this.wheeling = true;
 
-    setTimeout(function () {
-      _this.wheeling = false;
-    }, 50);
+      event.preventDefault();
+      this.action = action;
+      this.cropping = false;
 
-    if (e.deltaY) {
-      delta = e.deltaY > 0 ? 1 : -1;
-    } else if (e.wheelDelta) {
-      delta = -e.wheelDelta / 120;
-    } else if (e.detail) {
-      delta = e.detail > 0 ? 1 : -1;
-    }
+      if (action === ACTION_CROP) {
+        this.cropping = true;
+        addClass(this.dragBox, CLASS_MODAL);
+      }
+    },
+    cropMove: function cropMove(event) {
+      var action = this.action;
 
-    this.zoom(-delta * ratio, e);
-  },
-  cropStart: function cropStart(e) {
-    if (this.disabled) {
-      return;
-    }
+      if (this.disabled || !action) {
+        return;
+      }
 
-    var options = this.options,
-        pointers = this.pointers;
+      var pointers = this.pointers;
+      event.preventDefault();
 
-    var action = void 0;
+      if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
+        originalEvent: event,
+        action: action
+      }) === false) {
+        return;
+      }
 
-    if (e.changedTouches) {
-      // Handle touch event
-      each(e.changedTouches, function (touch) {
-        pointers[touch.identifier] = getPointer(touch);
-      });
-    } else {
-      // Handle mouse event and pointer event
-      pointers[e.pointerId || 0] = getPointer(e);
-    }
+      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));
+      }
 
-    if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
-      action = ACTION_ZOOM;
-    } else {
-      action = getData(e.target, DATA_ACTION);
-    }
+      this.change(event);
+    },
+    cropEnd: function cropEnd(event) {
+      if (this.disabled) {
+        return;
+      }
 
-    if (!REGEXP_ACTIONS.test(action)) {
-      return;
-    }
+      var action = this.action,
+          pointers = this.pointers;
 
-    if (dispatchEvent(this.element, EVENT_CROP_START, {
-      originalEvent: e,
-      action: action
-    }) === false) {
-      return;
-    }
+      if (event.changedTouches) {
+        forEach(event.changedTouches, function (touch) {
+          delete pointers[touch.identifier];
+        });
+      } else {
+        delete pointers[event.pointerId || 0];
+      }
 
-    e.preventDefault();
+      if (!action) {
+        return;
+      }
 
-    this.action = action;
-    this.cropping = false;
+      event.preventDefault();
 
-    if (action === ACTION_CROP) {
-      this.cropping = true;
-      addClass(this.dragBox, CLASS_MODAL);
-    }
-  },
-  cropMove: function cropMove(e) {
-    var action = this.action;
+      if (!Object.keys(pointers).length) {
+        this.action = '';
+      }
 
+      if (this.cropping) {
+        this.cropping = false;
+        toggleClass(this.dragBox, CLASS_MODAL, this.cropped && this.options.modal);
+      }
 
-    if (this.disabled || !action) {
-      return;
+      dispatchEvent(this.element, EVENT_CROP_END, {
+        originalEvent: event,
+        action: action
+      });
     }
+  };
 
-    var pointers = this.pointers;
+  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;
+            }
 
-    e.preventDefault();
+            break;
 
-    if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
-      originalEvent: e,
-      action: action
-    }) === false) {
-      return;
-    }
+          case ACTION_WEST:
+            if (left + range.x < minLeft) {
+              range.x = minLeft - left;
+            }
 
-    if (e.changedTouches) {
-      each(e.changedTouches, function (touch) {
-        extend(pointers[touch.identifier], getPointer(touch, true));
-      });
-    } else {
-      extend(pointers[e.pointerId || 0], getPointer(e, true));
-    }
+            break;
 
-    this.change(e);
-  },
-  cropEnd: function cropEnd(e) {
-    if (this.disabled) {
-      return;
-    }
+          case ACTION_NORTH:
+            if (top + range.y < minTop) {
+              range.y = minTop - top;
+            }
 
-    var action = this.action,
-        pointers = this.pointers;
+            break;
 
+          case ACTION_SOUTH:
+            if (bottom + range.y > maxHeight) {
+              range.y = maxHeight - bottom;
+            }
 
-    if (e.changedTouches) {
-      each(e.changedTouches, function (touch) {
-        delete pointers[touch.identifier];
-      });
-    } else {
-      delete pointers[e.pointerId || 0];
-    }
+            break;
 
-    if (!action) {
-      return;
-    }
+          default:
+        }
+      };
 
-    e.preventDefault();
+      switch (action) {
+        // Move crop box
+        case ACTION_ALL:
+          left += range.x;
+          top += range.y;
+          break;
+        // Resize crop box
 
-    if (!Object.keys(pointers).length) {
-      this.action = '';
-    }
+        case ACTION_EAST:
+          if (range.x >= 0 && (right >= maxWidth || aspectRatio && (top <= minTop || bottom >= maxHeight))) {
+            renderable = false;
+            break;
+          }
 
-    if (this.cropping) {
-      this.cropping = false;
-      toggleClass(this.dragBox, CLASS_MODAL, this.cropped && this.options.modal);
-    }
+          check(ACTION_EAST);
+          width += range.x;
 
-    dispatchEvent(this.element, EVENT_CROP_END, {
-      originalEvent: e,
-      action: action
-    });
-  }
-};
-
-var change = {
-  change: function change(e) {
-    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 = void 0;
-
-    // Locking aspect ratio in "free mode" by holding shift key
-    if (!aspectRatio && e.shiftKey) {
-      aspectRatio = width && height ? width / height : 1;
-    }
+          if (width < 0) {
+            action = ACTION_WEST;
+            width = -width;
+            left -= width;
+          }
 
-    if (this.limited) {
-      minLeft = cropBoxData.minLeft;
-      minTop = cropBoxData.minTop;
+          if (aspectRatio) {
+            height = width / aspectRatio;
+            top += (cropBoxData.height - height) / 2;
+          }
 
-      maxWidth = minLeft + Math.min(containerData.width, canvasData.width, canvasData.left + canvasData.width);
-      maxHeight = minTop + Math.min(containerData.height, canvasData.height, canvasData.top + canvasData.height);
-    }
+          break;
 
-    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;
+        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 (left + range.x < minLeft) {
-            range.x = minLeft - left;
+          if (range.x <= 0 && (left <= minLeft || aspectRatio && (top <= minTop || bottom >= maxHeight))) {
+            renderable = false;
+            break;
           }
 
-          break;
+          check(ACTION_WEST);
+          width -= range.x;
+          left += range.x;
 
-        case ACTION_NORTH:
-          if (top + range.y < minTop) {
-            range.y = minTop - top;
+          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 (bottom + range.y > maxHeight) {
-            range.y = maxHeight - bottom;
+          if (range.y >= 0 && (bottom >= maxHeight || aspectRatio && (left <= minLeft || right >= maxWidth))) {
+            renderable = false;
+            break;
           }
 
-          break;
+          check(ACTION_SOUTH);
+          height += range.y;
 
-        default:
-      }
-    };
+          if (height < 0) {
+            action = ACTION_NORTH;
+            height = -height;
+            top -= height;
+          }
 
-    switch (action) {
-      // Move crop box
-      case ACTION_ALL:
-        left += range.x;
-        top += range.y;
-        break;
+          if (aspectRatio) {
+            width = height * aspectRatio;
+            left += (cropBoxData.width - width) / 2;
+          }
 
-      // 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;
+        case ACTION_NORTH_EAST:
+          if (aspectRatio) {
+            if (range.y <= 0 && (top <= minTop || right >= maxWidth)) {
+              renderable = false;
+              break;
+            }
 
-        if (aspectRatio) {
-          height = width / aspectRatio;
-          top -= range.x / aspectRatio / 2;
-        }
+            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 (width < 0) {
-          action = ACTION_WEST;
-          width = 0;
-        }
+            if (range.y <= 0) {
+              if (top > minTop) {
+                height -= range.y;
+                top += range.y;
+              }
+            } else {
+              height -= range.y;
+              top += range.y;
+            }
+          }
 
-        break;
+          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;
+          }
 
-      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;
+        case ACTION_NORTH_WEST:
+          if (aspectRatio) {
+            if (range.y <= 0 && (top <= minTop || left <= minLeft)) {
+              renderable = false;
+              break;
+            }
 
-        if (aspectRatio) {
-          width = height * aspectRatio;
-          left += range.y * aspectRatio / 2;
-        }
-
-        if (height < 0) {
-          action = ACTION_SOUTH;
-          height = 0;
-        }
-
-        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 (aspectRatio) {
-          height = width / aspectRatio;
-          top += range.x / aspectRatio / 2;
-        }
-
-        if (width < 0) {
-          action = ACTION_EAST;
-          width = 0;
-        }
-
-        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 (aspectRatio) {
-          width = height * aspectRatio;
-          left -= range.y * aspectRatio / 2;
-        }
-
-        if (height < 0) {
-          action = ACTION_NORTH;
-          height = 0;
-        }
-
-        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 {
+            check(ACTION_NORTH);
             height -= range.y;
             top += range.y;
-          }
-        }
-
-        if (width < 0 && height < 0) {
-          action = ACTION_SOUTH_WEST;
-          height = 0;
-          width = 0;
-        } else if (width < 0) {
-          action = ACTION_NORTH_WEST;
-          width = 0;
-        } else if (height < 0) {
-          action = ACTION_SOUTH_EAST;
-          height = 0;
-        }
-
-        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 += range.y * aspectRatio;
-        } else {
-          check(ACTION_NORTH);
-          check(ACTION_WEST);
-
-          if (range.x <= 0) {
-            if (left > minLeft) {
+            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;
-            } else if (range.y <= 0 && top <= minTop) {
-              renderable = false;
             }
-          } else {
-            width -= range.x;
-            left += range.x;
-          }
 
-          if (range.y <= 0) {
-            if (top > minTop) {
+            if (range.y <= 0) {
+              if (top > minTop) {
+                height -= range.y;
+                top += range.y;
+              }
+            } else {
               height -= range.y;
               top += range.y;
             }
-          } else {
-            height -= range.y;
-            top += range.y;
           }
-        }
-
-        if (width < 0 && height < 0) {
-          action = ACTION_SOUTH_EAST;
-          height = 0;
-          width = 0;
-        } else if (width < 0) {
-          action = ACTION_NORTH_EAST;
-          width = 0;
-        } else if (height < 0) {
-          action = ACTION_SOUTH_WEST;
-          height = 0;
-        }
-
-        break;
 
-      case ACTION_SOUTH_WEST:
-        if (aspectRatio) {
-          if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {
-            renderable = false;
-            break;
+          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;
           }
 
-          check(ACTION_WEST);
-          width -= range.x;
-          left += range.x;
-          height = width / aspectRatio;
-        } else {
-          check(ACTION_SOUTH);
-          check(ACTION_WEST);
+          break;
 
-          if (range.x <= 0) {
-            if (left > minLeft) {
-              width -= range.x;
-              left += range.x;
-            } else if (range.y >= 0 && bottom >= maxHeight) {
+        case ACTION_SOUTH_WEST:
+          if (aspectRatio) {
+            if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {
               renderable = false;
+              break;
             }
-          } else {
+
+            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) {
+            if (range.y >= 0) {
+              if (bottom < maxHeight) {
+                height += range.y;
+              }
+            } else {
               height += range.y;
             }
-          } else {
-            height += range.y;
           }
-        }
-
-        if (width < 0 && height < 0) {
-          action = ACTION_NORTH_EAST;
-          height = 0;
-          width = 0;
-        } else if (width < 0) {
-          action = ACTION_SOUTH_EAST;
-          width = 0;
-        } else if (height < 0) {
-          action = ACTION_NORTH_WEST;
-          height = 0;
-        }
 
-        break;
-
-      case ACTION_SOUTH_EAST:
-        if (aspectRatio) {
-          if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {
-            renderable = false;
-            break;
+          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;
           }
 
-          check(ACTION_EAST);
-          width += range.x;
-          height = width / aspectRatio;
-        } else {
-          check(ACTION_SOUTH);
-          check(ACTION_EAST);
+          break;
 
-          if (range.x >= 0) {
-            if (right < maxWidth) {
-              width += range.x;
-            } else if (range.y >= 0 && bottom >= maxHeight) {
+        case ACTION_SOUTH_EAST:
+          if (aspectRatio) {
+            if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {
               renderable = false;
+              break;
             }
-          } else {
+
+            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) {
+            if (range.y >= 0) {
+              if (bottom < maxHeight) {
+                height += range.y;
+              }
+            } else {
               height += range.y;
             }
-          } else {
-            height += range.y;
           }
-        }
-
-        if (width < 0 && height < 0) {
-          action = ACTION_NORTH_WEST;
-          height = 0;
-          width = 0;
-        } else if (width < 0) {
-          action = ACTION_SOUTH_WEST;
-          width = 0;
-        } else if (height < 0) {
-          action = ACTION_NORTH_EAST;
-          height = 0;
-        }
 
-        break;
+          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;
+          }
 
-      // Move canvas
-      case ACTION_MOVE:
-        this.move(range.x, range.y);
-        renderable = false;
-        break;
+          break;
+        // Move canvas
 
-      // Zoom canvas
-      case ACTION_ZOOM:
-        this.zoom(getMaxZoomRatio(pointers), e);
-        renderable = false;
-        break;
+        case ACTION_MOVE:
+          this.move(range.x, range.y);
+          renderable = false;
+          break;
+        // Zoom canvas
 
-      // Create crop box
-      case ACTION_CROP:
-        if (!range.x || !range.y) {
+        case ACTION_ZOOM:
+          this.zoom(getMaxZoomRatio(pointers), event);
           renderable = false;
           break;
-        }
+        // Create crop box
 
-        offset = getOffset(this.cropper);
-        left = pointer.startX - offset.left;
-        top = pointer.startY - offset.top;
-        width = cropBoxData.minWidth;
-        height = cropBoxData.minHeight;
+        case ACTION_CROP:
+          if (!range.x || !range.y) {
+            renderable = false;
+            break;
+          }
 
-        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;
-        }
+          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 (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.cropped) {
+            removeClass(this.cropBox, CLASS_HIDDEN);
+            this.cropped = true;
 
-          if (this.limited) {
-            this.limitCropBox(true, true);
+            if (this.limited) {
+              this.limitCropBox(true, true);
+            }
           }
-        }
 
-        break;
+          break;
 
-      default:
-    }
+        default:
+      }
 
-    if (renderable) {
-      cropBoxData.width = width;
-      cropBoxData.height = height;
-      cropBoxData.left = left;
-      cropBoxData.top = top;
-      this.action = action;
-      this.renderCropBox();
-    }
+      if (renderable) {
+        cropBoxData.width = width;
+        cropBoxData.height = height;
+        cropBoxData.left = left;
+        cropBoxData.top = top;
+        this.action = action;
+        this.renderCropBox();
+      } // Override
 
-    // Override
-    each(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.disabled) {
-      if (!this.cropped) {
+      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);
 
@@ -2528,1164 +2449,1101 @@ var methods = {
         }
 
         removeClass(this.cropBox, CLASS_HIDDEN);
+        this.setCropBoxData(this.initialCropBoxData);
       }
 
-      this.setCropBoxData(this.initialCropBoxData);
-    }
-
-    return this;
-  },
-
+      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();
 
-  // Reset the image and crop box to their initial states
-  reset: function reset() {
-    if (this.ready && !this.disabled) {
-      this.imageData = extend({}, this.initialImageData);
-      this.canvasData = extend({}, this.initialCanvasData);
-      this.cropBoxData = extend({}, this.initialCropBoxData);
-      this.renderCanvas();
-
-      if (this.cropped) {
-        this.renderCropBox();
+        if (this.cropped) {
+          this.renderCropBox();
+        }
       }
-    }
-
-    return this;
-  },
-
-
-  // Clear the crop box
-  clear: function clear() {
-    if (this.cropped && !this.disabled) {
-      extend(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} [onlyColorChanged] - Indicate if the new image only changed color.
-   * @returns {Object} this
-   */
-  replace: function replace(url) {
-    var onlyColorChanged = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+      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
 
-    if (!this.disabled && url) {
-      if (this.isImg) {
-        this.element.src = url;
+        this.renderCanvas();
+        removeClass(this.dragBox, CLASS_MODAL);
+        addClass(this.cropBox, CLASS_HIDDEN);
       }
 
-      if (onlyColorChanged) {
-        this.url = url;
-        this.image.src = url;
+      return this;
+    },
 
-        if (this.ready) {
-          this.image2.src = url;
+    /**
+     * 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;
 
-          each(this.previews, function (element) {
-            element.getElementsByTagName('img')[0].src = url;
-          });
-        }
-      } else {
+      if (!this.disabled && url) {
         if (this.isImg) {
-          this.replaced = true;
+          this.element.src = url;
         }
 
-        // Clear previous data
-        this.options.data = null;
-        this.load(url);
-      }
-    }
-
-    return this;
-  },
-
-
-  // Enable (unfreeze) the cropper
-  enable: function enable() {
-    if (this.ready) {
-      this.disabled = false;
-      removeClass(this.cropper, CLASS_DISABLED);
-    }
-
-    return this;
-  },
-
-
-  // Disable (freeze) the cropper
-  disable: function disable() {
-    if (this.ready) {
-      this.disabled = true;
-      addClass(this.cropper, CLASS_DISABLED);
-    }
-
-    return this;
-  },
-
-
-  // Destroy the cropper and remove the instance from the image
-  destroy: function destroy() {
-    var element = this.element,
-        image = this.image;
-
-
-    if (this.loaded) {
-      if (this.isImg && this.replaced) {
-        element.src = this.originalUrl;
-      }
-
-      this.unbuild();
-      removeClass(element, CLASS_HIDDEN);
-    } else if (this.isImg) {
-      removeListener(element, EVENT_LOAD, this.onStart);
-    } else if (image) {
-      image.parentNode.removeChild(image);
-    }
-
-    removeData(element, NAMESPACE);
+        if (hasSameSize) {
+          this.url = url;
+          this.image.src = url;
 
-    return this;
-  },
-
-
-  /**
-   * Move the canvas with relative offsets
-   * @param {number} offsetX - The relative offset distance on the x-axis.
-   * @param {number} offsetY - The relative offset distance on the y-axis.
-   * @returns {Object} this
-   */
-  move: function move(offsetX, offsetY) {
-    var _canvasData = this.canvasData,
-        left = _canvasData.left,
-        top = _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 {Object} 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.viewBoxImage.src = url;
+            forEach(this.previews, function (element) {
+              element.getElementsByTagName('img')[0].src = url;
+            });
+          }
+        } else {
+          if (this.isImg) {
+            this.replaced = true;
+          }
 
-    if (this.ready && !this.disabled && this.options.movable) {
-      if (isNumber(x)) {
-        canvasData.left = x;
-        changed = true;
+          this.options.data = null;
+          this.uncreate();
+          this.load(url);
+        }
       }
 
-      if (isNumber(y)) {
-        canvasData.top = y;
-        changed = true;
+      return this;
+    },
+    // Enable (unfreeze) the cropper
+    enable: function enable() {
+      if (this.ready && this.disabled) {
+        this.disabled = false;
+        removeClass(this.cropper, CLASS_DISABLED);
       }
 
-      if (changed) {
-        this.renderCanvas(true);
+      return this;
+    },
+    // Disable (freeze) the cropper
+    disable: function disable() {
+      if (this.ready && !this.disabled) {
+        this.disabled = true;
+        addClass(this.cropper, CLASS_DISABLED);
       }
-    }
-
-    return this;
-  },
-
-
-  /**
-   * Zoom the canvas with a relative ratio
-   * @param {number} ratio - The target ratio.
-   * @param {Event} _originalEvent - The original event if any.
-   * @returns {Object} 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 {Object} 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;
+      return this;
+    },
 
+    /**
+     * Destroy the cropper and remove the instance from the image
+     * @returns {Cropper} this
+     */
+    destroy: function destroy() {
+      var element = this.element;
 
-    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, {
-        originalEvent: _originalEvent,
-        oldRatio: width / naturalWidth,
-        ratio: newWidth / naturalWidth
-      }) === false) {
+      if (!element[NAMESPACE]) {
         return this;
       }
 
-      if (_originalEvent) {
-        var pointers = this.pointers;
+      element[NAMESPACE] = undefined;
 
-        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;
+      if (this.isImg && this.replaced) {
+        element.src = this.originalUrl;
       }
 
-      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 {Object} 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 {Object} 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;
-  },
+      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));
+    },
 
-  /**
-   * Scale the image on the x-axis.
-   * @param {number} scaleX - The scale ratio on the x-axis.
-   * @returns {Object} this
-   */
-  scaleX: function scaleX(_scaleX) {
-    var scaleY = this.imageData.scaleY;
+    /**
+     * 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;
+        }
 
-    return this.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);
-  },
+        if (changed) {
+          this.renderCanvas(true);
+        }
+      }
 
+      return this;
+    },
 
-  /**
-   * Scale the image on the y-axis.
-   * @param {number} scaleY - The scale ratio on the y-axis.
-   * @returns {Object} this
-   */
-  scaleY: function scaleY(_scaleY) {
-    var scaleX = this.imageData.scaleX;
+    /**
+     * 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.scale(isNumber(scaleX) ? scaleX : 1, _scaleY);
-  },
+      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;
+        }
 
-  /**
-   * 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 {Object} this
-   */
-  scale: function scale(scaleX) {
-    var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
-    var imageData = this.imageData;
+        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;
+        }
 
-    var transformed = false;
+        canvasData.width = newWidth;
+        canvasData.height = newHeight;
+        this.renderCanvas(true);
+      }
 
-    scaleX = Number(scaleX);
-    scaleY = Number(scaleY);
+      return this;
+    },
 
-    if (this.ready && !this.disabled && this.options.scalable) {
-      if (isNumber(scaleX)) {
-        imageData.scaleX = scaleX;
-        transformed = true;
-      }
+    /**
+     * 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));
+    },
 
-      if (isNumber(scaleY)) {
-        imageData.scaleY = scaleY;
-        transformed = true;
-      }
+    /**
+     * Rotate the canvas to an absolute degree
+     * @param {number} degree - The rotate degree.
+     * @returns {Cropper} this
+     */
+    rotateTo: function rotateTo(degree) {
+      degree = Number(degree);
 
-      if (transformed) {
+      if (isNumber(degree) && this.ready && !this.disabled && this.options.rotatable) {
+        this.imageData.rotate = degree % 360;
         this.renderCanvas(true, true);
       }
-    }
 
-    return this;
-  },
+      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);
+    },
 
-  /**
-   * 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$$1() {
-    var rounded = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
-    var options = this.options,
-        imageData = this.imageData,
-        canvasData = this.canvasData,
-        cropBoxData = this.cropBoxData;
-
-    var data = void 0;
-
-    if (this.ready && this.cropped) {
-      data = {
-        x: cropBoxData.left - canvasData.left,
-        y: cropBoxData.top - canvasData.top,
-        width: cropBoxData.width,
-        height: cropBoxData.height
-      };
-
-      var ratio = imageData.width / imageData.naturalWidth;
-
-      each(data, function (n, i) {
-        n /= ratio;
-        data[i] = rounded ? Math.round(n) : n;
-      });
-    } else {
-      data = {
-        x: 0,
-        y: 0,
-        width: 0,
-        height: 0
-      };
-    }
-
-    if (options.rotatable) {
-      data.rotate = imageData.rotate || 0;
-    }
-
-    if (options.scalable) {
-      data.scaleX = imageData.scaleX || 1;
-      data.scaleY = imageData.scaleY || 1;
-    }
-
-    return data;
-  },
-
-
-  /**
-   * Set the cropped area position and size with new data
-   * @param {Object} data - The new data.
-   * @returns {Object} this
-   */
-  setData: function setData$$1(data) {
-    var options = this.options,
-        imageData = this.imageData,
-        canvasData = this.canvasData;
-
-    var cropBoxData = {};
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
+    /**
+     * 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);
+    },
 
-    if (this.ready && !this.disabled && isPlainObject(data)) {
+    /**
+     * 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 (options.rotatable) {
-        if (isNumber(data.rotate) && data.rotate !== imageData.rotate) {
-          imageData.rotate = data.rotate;
+      if (this.ready && !this.disabled && this.options.scalable) {
+        if (isNumber(scaleX)) {
+          imageData.scaleX = scaleX;
           transformed = true;
         }
-      }
 
-      if (options.scalable) {
-        if (isNumber(data.scaleX) && data.scaleX !== imageData.scaleX) {
-          imageData.scaleX = data.scaleX;
+        if (isNumber(scaleY)) {
+          imageData.scaleY = scaleY;
           transformed = true;
         }
 
-        if (isNumber(data.scaleY) && data.scaleY !== imageData.scaleY) {
-          imageData.scaleY = data.scaleY;
-          transformed = true;
+        if (transformed) {
+          this.renderCanvas(true, 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 ? extend({}, this.containerData) : {};
-  },
-
-
-  /**
-   * Get the image position and size data.
-   * @returns {Object} The result image data.
-   */
-  getImageData: function getImageData() {
-    return this.loaded ? extend({}, 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) {
-      each(['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 {Object} this
-   */
-  setCanvasData: function setCanvasData(data) {
-    var canvasData = this.canvasData;
-    var aspectRatio = canvasData.aspectRatio;
-
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
-
-    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 = void 0;
-
-    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 {Object} this
-   */
-  setCropBoxData: function setCropBoxData(data) {
-    var cropBoxData = this.cropBoxData;
-    var aspectRatio = this.options.aspectRatio;
-
-    var widthChanged = void 0;
-    var heightChanged = void 0;
-
-    if (isFunction(data)) {
-      data = data.call(this.element);
-    }
-
-    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;
-      }
+      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 (isNumber(data.width) && data.width !== cropBoxData.width) {
-        widthChanged = true;
-        cropBoxData.width = data.width;
+        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 (isNumber(data.height) && data.height !== cropBoxData.height) {
-        heightChanged = true;
-        cropBoxData.height = data.height;
+      if (options.rotatable) {
+        data.rotate = imageData.rotate || 0;
       }
 
-      if (aspectRatio) {
-        if (widthChanged) {
-          cropBoxData.height = cropBoxData.width / aspectRatio;
-        } else if (heightChanged) {
-          cropBoxData.width = cropBoxData.height * aspectRatio;
-        }
+      if (options.scalable) {
+        data.scaleX = imageData.scaleX || 1;
+        data.scaleY = imageData.scaleY || 1;
       }
 
-      this.renderCropBox();
-    }
+      return data;
+    },
 
-    return this;
-  },
+    /**
+     * 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;
 
-  /**
-   * 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 (options.rotatable) {
+          if (isNumber(data.rotate) && data.rotate !== imageData.rotate) {
+            imageData.rotate = data.rotate;
+            transformed = true;
+          }
+        }
 
-    if (!this.ready || !window.HTMLCanvasElement) {
-      return null;
-    }
+        if (options.scalable) {
+          if (isNumber(data.scaleX) && data.scaleX !== imageData.scaleX) {
+            imageData.scaleX = data.scaleX;
+            transformed = true;
+          }
 
-    var canvasData = this.canvasData;
+          if (isNumber(data.scaleY) && data.scaleY !== imageData.scaleY) {
+            imageData.scaleY = data.scaleY;
+            transformed = true;
+          }
+        }
 
-    var source = getSourceCanvas(this.image, this.imageData, canvasData, options);
+        if (transformed) {
+          this.renderCanvas(true, true);
+        }
 
-    // Returns the source canvas if it is not cropped.
-    if (!this.cropped) {
-      return source;
-    }
+        var ratio = imageData.width / imageData.naturalWidth;
 
-    var _getData = this.getData(),
-        x = _getData.x,
-        y = _getData.y,
-        initialWidth = _getData.width,
-        initialHeight = _getData.height;
+        if (isNumber(data.x)) {
+          cropBoxData.left = data.x * ratio + canvasData.left;
+        }
 
-    var aspectRatio = initialWidth / initialHeight;
-    var maxSizes = getContainSizes({
-      aspectRatio: aspectRatio,
-      width: options.maxWidth || Infinity,
-      height: options.maxHeight || Infinity
-    });
-    var minSizes = getContainSizes({
-      aspectRatio: aspectRatio,
-      width: options.minWidth || 0,
-      height: options.minHeight || 0
-    });
+        if (isNumber(data.y)) {
+          cropBoxData.top = data.y * ratio + canvasData.top;
+        }
 
-    var _getContainSizes = getContainSizes({
-      aspectRatio: aspectRatio,
-      width: options.width || initialWidth,
-      height: options.height || initialHeight
-    }),
-        width = _getContainSizes.width,
-        height = _getContainSizes.height;
+        if (isNumber(data.width)) {
+          cropBoxData.width = data.width * ratio;
+        }
 
-    width = Math.min(maxSizes.width, Math.max(minSizes.width, width));
-    height = Math.min(maxSizes.height, Math.max(minSizes.height, height));
+        if (isNumber(data.height)) {
+          cropBoxData.height = data.height * ratio;
+        }
 
-    var canvas = document.createElement('canvas');
-    var context = canvas.getContext('2d');
+        this.setCropBoxData(cropBoxData);
+      }
 
-    canvas.width = normalizeDecimalNumber(width);
-    canvas.height = normalizeDecimalNumber(height);
+      return this;
+    },
 
-    context.fillStyle = options.fillColor || 'transparent';
-    context.fillRect(0, 0, width, height);
+    /**
+     * Get the container size data.
+     * @returns {Object} The result container data.
+     */
+    getContainerData: function getContainerData() {
+      return this.ready ? assign({}, this.containerData) : {};
+    },
 
-    var _options$imageSmoothi = options.imageSmoothingEnabled,
-        imageSmoothingEnabled = _options$imageSmoothi === undefined ? true : _options$imageSmoothi,
-        imageSmoothingQuality = options.imageSmoothingQuality;
+    /**
+     * 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 = {};
 
-    context.imageSmoothingEnabled = imageSmoothingEnabled;
+      if (this.ready) {
+        forEach(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
+          data[n] = canvasData[n];
+        });
+      }
 
-    if (imageSmoothingQuality) {
-      context.imageSmoothingQuality = imageSmoothingQuality;
-    }
+      return data;
+    },
 
-    // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
-    var sourceWidth = source.width;
-    var sourceHeight = source.height;
-
-    // Source canvas parameters
-    var srcX = x;
-    var srcY = y;
-    var srcWidth = void 0;
-    var srcHeight = void 0;
-
-    // Destination canvas parameters
-    var dstX = void 0;
-    var dstY = void 0;
-    var dstWidth = void 0;
-    var dstHeight = void 0;
-
-    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;
-    }
+    /**
+     * 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 (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;
-    }
+      if (this.ready && !this.disabled && isPlainObject(data)) {
+        if (isNumber(data.left)) {
+          canvasData.left = data.left;
+        }
 
-    // All the numerical parameters should be integer for `drawImage`
-    // https://github.com/fengyuanchen/cropper/issues/476
-    var params = [srcX, srcY, srcWidth, srcHeight];
+        if (isNumber(data.top)) {
+          canvasData.top = data.top;
+        }
 
-    // Avoid "IndexSizeError"
-    if (dstWidth > 0 && dstHeight > 0) {
-      var scale = width / initialWidth;
+        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;
+        }
 
-      params.push(dstX * scale, dstY * scale, dstWidth * scale, dstHeight * scale);
-    }
+        this.renderCanvas(true);
+      }
 
-    context.drawImage.apply(context, [source].concat(toConsumableArray(params.map(function (param) {
-      return Math.floor(normalizeDecimalNumber(param));
-    }))));
+      return this;
+    },
 
-    return canvas;
-  },
+    /**
+     * 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 || {};
+    },
 
-  /**
-   * Change the aspect ratio of the crop box.
-   * @param {number} aspectRatio - The new aspect ratio.
-   * @returns {Object} this
-   */
-  setAspectRatio: function setAspectRatio(aspectRatio) {
-    var options = this.options;
+    /**
+     * 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 (!this.disabled && !isUndefined(aspectRatio)) {
-      // 0 -> NaN
-      options.aspectRatio = Math.max(0, aspectRatio) || NaN;
+        if (isNumber(data.width) && data.width !== cropBoxData.width) {
+          widthChanged = true;
+          cropBoxData.width = data.width;
+        }
 
-      if (this.ready) {
-        this.initCropBox();
+        if (isNumber(data.height) && data.height !== cropBoxData.height) {
+          heightChanged = true;
+          cropBoxData.height = data.height;
+        }
 
-        if (this.cropped) {
-          this.renderCropBox();
+        if (aspectRatio) {
+          if (widthChanged) {
+            cropBoxData.height = cropBoxData.width / aspectRatio;
+          } else if (heightChanged) {
+            cropBoxData.width = cropBoxData.height * aspectRatio;
+          }
         }
+
+        this.renderCropBox();
       }
-    }
 
-    return this;
-  },
+      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] : {};
 
-  /**
-   * Change the drag mode.
-   * @param {string} mode - The new drag mode.
-   * @returns {Object} this
-   */
-  setDragMode: function setDragMode(mode) {
-    var options = this.options,
-        dragBox = this.dragBox,
-        face = this.face;
+      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.loaded && !this.disabled) {
-      var croppable = mode === DRAG_MODE_CROP;
-      var movable = options.movable && mode === DRAG_MODE_MOVE;
+      if (!this.cropped) {
+        return source;
+      }
 
-      mode = croppable || movable ? mode : DRAG_MODE_NONE;
+      var _this$getData = this.getData(),
+          initialX = _this$getData.x,
+          initialY = _this$getData.y,
+          initialWidth = _this$getData.width,
+          initialHeight = _this$getData.height;
 
-      setData(dragBox, DATA_ACTION, mode);
-      toggleClass(dragBox, CLASS_CROP, croppable);
-      toggleClass(dragBox, CLASS_MOVE, movable);
+      var ratio = source.width / Math.floor(canvasData.naturalWidth);
 
-      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);
+      if (ratio !== 1) {
+        initialX *= ratio;
+        initialY *= ratio;
+        initialWidth *= ratio;
+        initialHeight *= ratio;
       }
-    }
 
-    return this;
-  }
-};
+      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 AnotherCropper = WINDOW.Cropper;
+      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;
+    },
 
-var Cropper = 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);
+    /**
+     * 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 (!element || !REGEXP_TAG_NAME.test(element.tagName)) {
-      throw new Error('The first argument is required and must be an <img> or <canvas> element.');
-    }
+      if (!this.disabled && !isUndefined(aspectRatio)) {
+        // 0 -> NaN
+        options.aspectRatio = Math.max(0, aspectRatio) || NaN;
 
-    this.element = element;
-    this.options = extend({}, DEFAULTS, isPlainObject(options) && options);
-    this.complete = false;
-    this.cropped = false;
-    this.disabled = false;
-    this.isImg = false;
-    this.limited = false;
-    this.loaded = false;
-    this.ready = false;
-    this.replaced = false;
-    this.wheeling = false;
-    this.originalUrl = '';
-    this.canvasData = null;
-    this.cropBoxData = null;
-    this.previews = null;
-    this.pointers = {};
-    this.init();
-  }
+        if (this.ready) {
+          this.initCropBox();
 
-  createClass(Cropper, [{
-    key: 'init',
-    value: function init() {
-      var element = this.element;
+          if (this.cropped) {
+            this.renderCropBox();
+          }
+        }
+      }
 
-      var tagName = element.tagName.toLowerCase();
-      var url = void 0;
+      return this;
+    },
 
-      if (getData(element, NAMESPACE)) {
-        return;
+    /**
+     * 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);
+        }
       }
 
-      setData(element, NAMESPACE, this);
+      return this;
+    }
+  };
 
-      if (tagName === 'img') {
-        this.isImg = true;
+  var AnotherCropper = WINDOW.Cropper;
 
-        // e.g.: "img/picture.jpg"
-        url = element.getAttribute('src') || '';
-        this.originalUrl = url;
+  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] : {};
 
-        // Stop when it's a blank image
-        if (!url) {
-          return;
-        }
+      _classCallCheck(this, Cropper);
 
-        // e.g.: "http://example.com/img/picture.jpg"
-        url = element.src;
-      } else if (tagName === 'canvas' && window.HTMLCanvasElement) {
-        url = element.toDataURL();
+      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.load(url);
+      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();
     }
-  }, {
-    key: 'load',
-    value: function load(url) {
-      var _this = this;
-
-      if (!url) {
-        return;
-      }
-
-      this.url = url;
-      this.imageData = {};
 
-      var element = this.element,
-          options = this.options;
+    _createClass(Cropper, [{
+      key: "init",
+      value: function init() {
+        var element = this.element;
+        var tagName = element.tagName.toLowerCase();
+        var url;
 
+        if (element[NAMESPACE]) {
+          return;
+        }
 
-      if (!options.checkOrientation || !window.ArrayBuffer) {
-        this.clone();
-        return;
-      }
+        element[NAMESPACE] = this;
 
-      // XMLHttpRequest disallows to open a Data URL in some browsers like IE11 and Safari
-      if (REGEXP_DATA_URL.test(url)) {
-        if (REGEXP_DATA_URL_JPEG.test(url)) {
-          this.read(dataURLToArrayBuffer(url));
-        } else {
-          this.clone();
-        }
+        if (tagName === 'img') {
+          this.isImg = true; // e.g.: "img/picture.jpg"
 
-        return;
-      }
+          url = element.getAttribute('src') || '';
+          this.originalUrl = url; // Stop when it's a blank image
 
-      var xhr = new XMLHttpRequest();
+          if (!url) {
+            return;
+          } // e.g.: "http://example.com/img/picture.jpg"
 
-      xhr.onerror = function () {
-        _this.clone();
-      };
 
-      xhr.onload = function () {
-        _this.read(xhr.response);
-      };
+          url = element.src;
+        } else if (tagName === 'canvas' && window.HTMLCanvasElement) {
+          url = element.toDataURL();
+        }
 
-      if (options.checkCrossOrigin && isCrossOriginURL(url) && element.crossOrigin) {
-        url = addTimestamp(url);
+        this.load(url);
       }
+    }, {
+      key: "load",
+      value: function load(url) {
+        var _this = this;
 
-      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;
-
-      var orientation = getOrientation(arrayBuffer);
-      var rotate = 0;
-      var scaleX = 1;
-      var scaleY = 1;
+        if (!url) {
+          return;
+        }
 
-      if (orientation > 1) {
-        this.url = arrayBufferToDataURL(arrayBuffer, 'image/jpeg');
+        this.url = url;
+        this.imageData = {};
+        var element = this.element,
+            options = this.options;
 
-        var _parseOrientation = parseOrientation(orientation);
+        if (!options.rotatable && !options.scalable) {
+          options.checkOrientation = false;
+        } // Only IE10+ supports Typed Arrays
 
-        rotate = _parseOrientation.rotate;
-        scaleX = _parseOrientation.scaleX;
-        scaleY = _parseOrientation.scaleY;
-      }
 
-      if (options.rotatable) {
-        imageData.rotate = rotate;
-      }
+        if (!options.checkOrientation || !window.ArrayBuffer) {
+          this.clone();
+          return;
+        } // Detect the mime type of the image directly if it is a Data URL
 
-      if (options.scalable) {
-        imageData.scaleX = scaleX;
-        imageData.scaleY = scaleY;
-      }
 
-      this.clone();
-    }
-  }, {
-    key: 'clone',
-    value: function clone() {
-      var element = this.element,
-          url = this.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();
+          }
 
-      var crossOrigin = void 0;
-      var crossOriginUrl = void 0;
+          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();
+          }
+        };
 
-      if (this.options.checkCrossOrigin && isCrossOriginURL(url)) {
-        crossOrigin = element.crossOrigin;
+        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 (crossOrigin) {
-          crossOriginUrl = url;
-        } else {
-          crossOrigin = 'anonymous';
 
-          // Bust cache when there is not a "crossOrigin" property
-          crossOriginUrl = addTimestamp(url);
+        if (options.checkCrossOrigin && isCrossOriginURL(url) && element.crossOrigin) {
+          url = addTimestamp(url);
         }
-      }
 
-      this.crossOrigin = crossOrigin;
-      this.crossOriginUrl = crossOriginUrl;
+        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 image = document.createElement('img');
+        var orientation = resetAndGetOrientation(arrayBuffer);
+        var rotate = 0;
+        var scaleX = 1;
+        var scaleY = 1;
 
-      if (crossOrigin) {
-        image.crossOrigin = crossOrigin;
-      }
+        if (orientation > 1) {
+          // Generate a new URL which has the default orientation value
+          this.url = arrayBufferToDataURL(arrayBuffer, MIME_TYPE_JPEG);
 
-      image.src = crossOriginUrl || url;
+          var _parseOrientation = parseOrientation(orientation);
 
-      var start = proxy(this.start, this);
-      var stop = proxy(this.stop, this);
+          rotate = _parseOrientation.rotate;
+          scaleX = _parseOrientation.scaleX;
+          scaleY = _parseOrientation.scaleY;
+        }
 
-      this.image = image;
-      this.onStart = start;
-      this.onStop = stop;
+        if (options.rotatable) {
+          imageData.rotate = rotate;
+        }
 
-      if (this.isImg) {
-        if (element.complete) {
-          this.start();
-        } else {
-          addListener(element, EVENT_LOAD, start);
+        if (options.scalable) {
+          imageData.scaleX = scaleX;
+          imageData.scaleY = scaleY;
         }
-      } else {
-        addListener(image, EVENT_LOAD, start);
-        addListener(image, EVENT_ERROR, stop);
-        addClass(image, CLASS_HIDE);
-        element.parentNode.insertBefore(image, element.nextSibling);
+
+        this.clone();
       }
-    }
-  }, {
-    key: 'start',
-    value: function start(event) {
-      var _this2 = this;
+    }, {
+      key: "clone",
+      value: function clone() {
+        var element = this.element,
+            url = this.url;
+        var crossOrigin = element.crossOrigin;
+        var crossOriginUrl = url;
 
-      var image = this.isImg ? this.element : this.image;
+        if (this.options.checkCrossOrigin && isCrossOriginURL(url)) {
+          if (!crossOrigin) {
+            crossOrigin = 'anonymous';
+          } // Bust cache when there is not a "crossOrigin" property (#519)
 
-      if (event) {
-        removeListener(image, EVENT_LOAD, this.onStart);
-        removeListener(image, EVENT_ERROR, this.onStop);
-      }
 
-      getImageNaturalSizes(image, function (naturalWidth, naturalHeight) {
-        extend(_this2.imageData, {
-          naturalWidth: naturalWidth,
-          naturalHeight: naturalHeight,
-          aspectRatio: naturalWidth / naturalHeight
-        });
-        _this2.loaded = true;
-        _this2.build();
-      });
-    }
-  }, {
-    key: 'stop',
-    value: function stop() {
-      var image = this.image;
+          crossOriginUrl = addTimestamp(url);
+        }
 
+        this.crossOrigin = crossOrigin;
+        this.crossOriginUrl = crossOriginUrl;
+        var image = document.createElement('img');
 
-      removeListener(image, EVENT_LOAD, this.onStart);
-      removeListener(image, EVENT_ERROR, this.onStop);
-      image.parentNode.removeChild(image);
-      this.image = null;
-    }
-  }, {
-    key: 'build',
-    value: function build() {
-      var _this3 = this;
+        if (crossOrigin) {
+          image.crossOrigin = crossOrigin;
+        }
 
-      if (!this.loaded) {
-        return;
+        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;
 
-      // Unbuild first when replace
-      if (this.ready) {
-        this.unbuild();
-      }
+        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 element = this.element,
-          options = this.options,
-          image = this.image;
+        var isIOSWebKit = WINDOW.navigator && /(?:iPad|iPhone|iPod).*?AppleWebKit/i.test(WINDOW.navigator.userAgent);
 
-      // Create cropper elements
+        var done = function done(naturalWidth, naturalHeight) {
+          assign(_this2.imageData, {
+            naturalWidth: naturalWidth,
+            naturalHeight: naturalHeight,
+            aspectRatio: naturalWidth / naturalHeight
+          });
+          _this2.sizing = false;
+          _this2.sized = true;
 
-      var container = element.parentNode;
-      var template = document.createElement('div');
+          _this2.build();
+        }; // Most modern browsers (excepts iOS WebKit)
 
-      template.innerHTML = TEMPLATE;
 
-      var cropper = template.querySelector('.' + NAMESPACE + '-container');
-      var canvas = cropper.querySelector('.' + NAMESPACE + '-canvas');
-      var dragBox = cropper.querySelector('.' + NAMESPACE + '-drag-box');
-      var cropBox = cropper.querySelector('.' + NAMESPACE + '-crop-box');
-      var face = cropBox.querySelector('.' + NAMESPACE + '-face');
+        if (image.naturalWidth && !isIOSWebKit) {
+          done(image.naturalWidth, image.naturalHeight);
+          return;
+        }
 
-      this.container = container;
-      this.cropper = cropper;
-      this.canvas = canvas;
-      this.dragBox = dragBox;
-      this.cropBox = cropBox;
-      this.viewBox = cropper.querySelector('.' + NAMESPACE + '-view-box');
-      this.face = face;
+        var sizingImage = document.createElement('img');
+        var body = document.body || document.documentElement;
+        this.sizingImage = sizingImage;
 
-      canvas.appendChild(image);
+        sizingImage.onload = function () {
+          done(sizingImage.width, sizingImage.height);
 
-      // Hide the original image
-      addClass(element, CLASS_HIDDEN);
+          if (!isIOSWebKit) {
+            body.removeChild(sizingImage);
+          }
+        };
 
-      // Inserts the cropper after to the current image
-      container.insertBefore(cropper, element.nextSibling);
+        sizingImage.src = image.src; // iOS WebKit will convert the image automatically
+        // with its orientation once append it into DOM (#279)
 
-      // Show the image if is hidden
-      if (!this.isImg) {
-        removeClass(image, CLASS_HIDE);
+        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;
+        }
 
-      this.initPreview();
-      this.bind();
+        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);
+        }
 
-      options.aspectRatio = Math.max(0, options.aspectRatio) || NaN;
-      options.viewMode = Math.max(0, Math.min(3, Math.round(options.viewMode))) || 0;
+        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);
 
-      this.cropped = options.autoCrop;
+        if (!options.guides) {
+          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-dashed")), CLASS_HIDDEN);
+        }
 
-      if (options.autoCrop) {
-        if (options.modal) {
-          addClass(dragBox, CLASS_MODAL);
+        if (!options.center) {
+          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-center")), CLASS_HIDDEN);
         }
-      } else {
-        addClass(cropBox, CLASS_HIDDEN);
-      }
 
-      if (!options.guides) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-dashed'), CLASS_HIDDEN);
-      }
+        if (options.background) {
+          addClass(cropper, "".concat(NAMESPACE, "-bg"));
+        }
 
-      if (!options.center) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-center'), CLASS_HIDDEN);
-      }
+        if (!options.highlight) {
+          addClass(face, CLASS_INVISIBLE);
+        }
 
-      if (options.background) {
-        addClass(cropper, NAMESPACE + '-bg');
-      }
+        if (options.cropBoxMovable) {
+          addClass(face, CLASS_MOVE);
+          setData(face, DATA_ACTION, ACTION_ALL);
+        }
 
-      if (!options.highlight) {
-        addClass(face, CLASS_INVISIBLE);
-      }
+        if (!options.cropBoxResizable) {
+          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-line")), CLASS_HIDDEN);
+          addClass(cropBox.getElementsByClassName("".concat(NAMESPACE, "-point")), CLASS_HIDDEN);
+        }
 
-      if (options.cropBoxMovable) {
-        addClass(face, CLASS_MOVE);
-        setData(face, DATA_ACTION, ACTION_ALL);
-      }
+        this.render();
+        this.ready = true;
+        this.setDragMode(options.dragMode);
 
-      if (!options.cropBoxResizable) {
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-line'), CLASS_HIDDEN);
-        addClass(cropBox.getElementsByClassName(NAMESPACE + '-point'), CLASS_HIDDEN);
-      }
+        if (options.autoCrop) {
+          this.crop();
+        }
 
-      this.setDragMode(options.dragMode);
-      this.render();
-      this.ready = true;
-      this.setData(options.data);
+        this.setData(options.data);
 
-      // Call the "ready" option asynchronously to keep "image.cropper" is defined
-      this.completing = setTimeout(function () {
         if (isFunction(options.ready)) {
           addListener(element, EVENT_READY, options.ready, {
             once: true
@@ -3693,74 +3551,66 @@ var Cropper = function () {
         }
 
         dispatchEvent(element, EVENT_READY);
-        dispatchEvent(element, EVENT_CROP, _this3.getData());
-
-        _this3.complete = true;
-      }, 0);
-    }
-  }, {
-    key: 'unbuild',
-    value: function unbuild() {
-      if (!this.ready) {
-        return;
       }
+    }, {
+      key: "unbuild",
+      value: function unbuild() {
+        if (!this.ready) {
+          return;
+        }
 
-      if (!this.complete) {
-        clearTimeout(this.completing);
+        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.
+       */
 
-      this.ready = false;
-      this.complete = false;
-      this.initialImageData = null;
-
-      // Clear `initialCanvasData` is necessary when replace
-      this.initialCanvasData = null;
-      this.initialCropBoxData = null;
-      this.containerData = null;
-      this.canvasData = null;
-
-      // Clear `cropBoxData` is necessary when replace
-      this.cropBoxData = null;
-      this.unbind();
-      this.resetPreview();
-      this.previews = null;
-      this.viewBox = null;
-      this.cropBox = null;
-      this.dragBox = null;
-      this.canvas = null;
-      this.container = null;
-      this.cropper.parentNode.removeChild(this.cropper);
-      this.cropper = null;
-    }
+    }], [{
+      key: "noConflict",
+      value: function noConflict() {
+        window.Cropper = AnotherCropper;
+        return Cropper;
+      }
+      /**
+       * Change the default options.
+       * @param {Object} options - The new default options.
+       */
 
-    /**
-     * Get the no conflict cropper class.
-     * @returns {Cropper} The cropper class.
-     */
+    }, {
+      key: "setDefaults",
+      value: function setDefaults(options) {
+        assign(DEFAULTS, isPlainObject(options) && options);
+      }
+    }]);
 
-  }], [{
-    key: 'noConflict',
-    value: function noConflict() {
-      window.Cropper = AnotherCropper;
-      return Cropper;
-    }
+    return Cropper;
+  }();
 
-    /**
-     * Change the default options.
-     * @param {Object} options - The new default options.
-     */
+  assign(Cropper.prototype, render, preview, events, handlers, change, methods);
 
-  }, {
-    key: 'setDefaults',
-    value: function setDefaults(options) {
-      extend(DEFAULTS, isPlainObject(options) && options);
-    }
-  }]);
   return Cropper;
-}();
-
-extend(Cropper.prototype, render, preview, events, handlers, change, methods);
-
-return Cropper;
 
-})));
+}));
diff --git a/library/cropperjs/dist/cropper.min.css b/library/cropperjs/dist/cropper.min.css
index 89148848a..d870a6740 100644
--- a/library/cropperjs/dist/cropper.min.css
+++ b/library/cropperjs/dist/cropper.min.css
@@ -1,9 +1,9 @@
 /*!
- * Cropper.js v1.2.2
- * https://github.com/fengyuanchen/cropperjs
+ * Cropper.js v1.5.6
+ * https://fengyuanchen.github.io/cropperjs
  *
- * Copyright (c) 2015-2018 Chen Fengyuan
+ * Copyright 2015-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-01-03T13:26:29.610Z
- */.cropper-container{direction:ltr;font-size:0;line-height:0;position:relative;-ms-touch-action:none;touch-action:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.cropper-container img{display:block;height:100%;image-orientation:0deg;max-height:none!important;max-width:none!important;min-height:0!important;min-width:0!important;width:100%}.cropper-canvas,.cropper-crop-box,.cropper-drag-box,.cropper-modal,.cropper-wrap-box{bottom:0;left:0;position:absolute;right:0;top:0}.cropper-canvas,.cropper-wrap-box{overflow:hidden}.cropper-drag-box{background-color:#fff;opacity:0}.cropper-modal{background-color:#000;opacity:.5}.cropper-view-box{display:block;height:100%;outline-color:rgba(51,153,255,.75);outline:1px solid #39f;overflow:hidden;width:100%}.cropper-dashed{border:0 dashed #eee;display:block;opacity:.5;position:absolute}.cropper-dashed.dashed-h{border-bottom-width:1px;border-top-width:1px;height:33.33333%;left:0;top:33.33333%;width:100%}.cropper-dashed.dashed-v{border-left-width:1px;border-right-width:1px;height:100%;left:33.33333%;top:0;width:33.33333%}.cropper-center{display:block;height:0;left:50%;opacity:.75;position:absolute;top:50%;width:0}.cropper-center:after,.cropper-center:before{background-color:#eee;content:" ";display:block;position:absolute}.cropper-center:before{height:1px;left:-3px;top:0;width:7px}.cropper-center:after{height:7px;left:0;top:-3px;width:1px}.cropper-face,.cropper-line,.cropper-point{display:block;height:100%;opacity:.1;position:absolute;width:100%}.cropper-face{background-color:#fff;left:0;top:0}.cropper-line{background-color:#39f}.cropper-line.line-e{cursor:ew-resize;right:-3px;top:0;width:5px}.cropper-line.line-n{cursor:ns-resize;height:5px;left:0;top:-3px}.cropper-line.line-w{cursor:ew-resize;left:-3px;top:0;width:5px}.cropper-line.line-s{bottom:-3px;cursor:ns-resize;height:5px;left:0}.cropper-point{background-color:#39f;height:5px;opacity:.75;width:5px}.cropper-point.point-e{cursor:ew-resize;margin-top:-3px;right:-3px;top:50%}.cropper-point.point-n{cursor:ns-resize;left:50%;margin-left:-3px;top:-3px}.cropper-point.point-w{cursor:ew-resize;left:-3px;margin-top:-3px;top:50%}.cropper-point.point-s{bottom:-3px;cursor:s-resize;left:50%;margin-left:-3px}.cropper-point.point-ne{cursor:nesw-resize;right:-3px;top:-3px}.cropper-point.point-nw{cursor:nwse-resize;left:-3px;top:-3px}.cropper-point.point-sw{bottom:-3px;cursor:nesw-resize;left:-3px}.cropper-point.point-se{bottom:-3px;cursor:nwse-resize;height:20px;opacity:1;right:-3px;width:20px}@media (min-width:768px){.cropper-point.point-se{height:15px;width:15px}}@media (min-width:992px){.cropper-point.point-se{height:10px;width:10px}}@media (min-width:1200px){.cropper-point.point-se{height:5px;opacity:.75;width:5px}}.cropper-point.point-se:before{background-color:#39f;bottom:-50%;content:" ";display:block;height:200%;opacity:0;position:absolute;right:-50%;width:200%}.cropper-invisible{opacity:0}.cropper-bg{background-image:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAAA3NCSVQICAjb4U/gAAAABlBMVEXMzMz////TjRV2AAAACXBIWXMAAArrAAAK6wGCiw1aAAAAHHRFWHRTb2Z0d2FyZQBBZG9iZSBGaXJld29ya3MgQ1M26LyyjAAAABFJREFUCJlj+M/AgBVhF/0PAH6/D/HkDxOGAAAAAElFTkSuQmCC")}.cropper-hide{display:block;height:0;position:absolute;width:0}.cropper-hidden{display:none!important}.cropper-move{cursor:move}.cropper-crop{cursor:crosshair}.cropper-disabled .cropper-drag-box,.cropper-disabled .cropper-face,.cropper-disabled .cropper-line,.cropper-disabled .cropper-point{cursor:not-allowed}
\ No newline at end of file
+ * Date: 2019-10-04T04:33:44.164Z
+ */.cropper-container{direction:ltr;font-size:0;line-height:0;position:relative;-ms-touch-action:none;touch-action:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.cropper-container img{display:block;height:100%;image-orientation:0deg;max-height:none!important;max-width:none!important;min-height:0!important;min-width:0!important;width:100%}.cropper-canvas,.cropper-crop-box,.cropper-drag-box,.cropper-modal,.cropper-wrap-box{bottom:0;left:0;position:absolute;right:0;top:0}.cropper-canvas,.cropper-wrap-box{overflow:hidden}.cropper-drag-box{background-color:#fff;opacity:0}.cropper-modal{background-color:#000;opacity:.5}.cropper-view-box{display:block;height:100%;outline:1px solid #39f;outline-color:rgba(51,153,255,.75);overflow:hidden;width:100%}.cropper-dashed{border:0 dashed #eee;display:block;opacity:.5;position:absolute}.cropper-dashed.dashed-h{border-bottom-width:1px;border-top-width:1px;height:33.33333%;left:0;top:33.33333%;width:100%}.cropper-dashed.dashed-v{border-left-width:1px;border-right-width:1px;height:100%;left:33.33333%;top:0;width:33.33333%}.cropper-center{display:block;height:0;left:50%;opacity:.75;position:absolute;top:50%;width:0}.cropper-center:after,.cropper-center:before{background-color:#eee;content:" ";display:block;position:absolute}.cropper-center:before{height:1px;left:-3px;top:0;width:7px}.cropper-center:after{height:7px;left:0;top:-3px;width:1px}.cropper-face,.cropper-line,.cropper-point{display:block;height:100%;opacity:.1;position:absolute;width:100%}.cropper-face{background-color:#fff;left:0;top:0}.cropper-line{background-color:#39f}.cropper-line.line-e{cursor:ew-resize;right:-3px;top:0;width:5px}.cropper-line.line-n{cursor:ns-resize;height:5px;left:0;top:-3px}.cropper-line.line-w{cursor:ew-resize;left:-3px;top:0;width:5px}.cropper-line.line-s{bottom:-3px;cursor:ns-resize;height:5px;left:0}.cropper-point{background-color:#39f;height:5px;opacity:.75;width:5px}.cropper-point.point-e{cursor:ew-resize;margin-top:-3px;right:-3px;top:50%}.cropper-point.point-n{cursor:ns-resize;left:50%;margin-left:-3px;top:-3px}.cropper-point.point-w{cursor:ew-resize;left:-3px;margin-top:-3px;top:50%}.cropper-point.point-s{bottom:-3px;cursor:s-resize;left:50%;margin-left:-3px}.cropper-point.point-ne{cursor:nesw-resize;right:-3px;top:-3px}.cropper-point.point-nw{cursor:nwse-resize;left:-3px;top:-3px}.cropper-point.point-sw{bottom:-3px;cursor:nesw-resize;left:-3px}.cropper-point.point-se{bottom:-3px;cursor:nwse-resize;height:20px;opacity:1;right:-3px;width:20px}@media (min-width:768px){.cropper-point.point-se{height:15px;width:15px}}@media (min-width:992px){.cropper-point.point-se{height:10px;width:10px}}@media (min-width:1200px){.cropper-point.point-se{height:5px;opacity:.75;width:5px}}.cropper-point.point-se:before{background-color:#39f;bottom:-50%;content:" ";display:block;height:200%;opacity:0;position:absolute;right:-50%;width:200%}.cropper-invisible{opacity:0}.cropper-bg{background-image:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAAA3NCSVQICAjb4U/gAAAABlBMVEXMzMz////TjRV2AAAACXBIWXMAAArrAAAK6wGCiw1aAAAAHHRFWHRTb2Z0d2FyZQBBZG9iZSBGaXJld29ya3MgQ1M26LyyjAAAABFJREFUCJlj+M/AgBVhF/0PAH6/D/HkDxOGAAAAAElFTkSuQmCC")}.cropper-hide{display:block;height:0;position:absolute;width:0}.cropper-hidden{display:none!important}.cropper-move{cursor:move}.cropper-crop{cursor:crosshair}.cropper-disabled .cropper-drag-box,.cropper-disabled .cropper-face,.cropper-disabled .cropper-line,.cropper-disabled .cropper-point{cursor:not-allowed}
\ No newline at end of file
diff --git a/library/cropperjs/dist/cropper.min.js b/library/cropperjs/dist/cropper.min.js
index e213c6c41..958cc2391 100644
--- a/library/cropperjs/dist/cropper.min.js
+++ b/library/cropperjs/dist/cropper.min.js
@@ -1,10 +1,10 @@
 /*!
- * Cropper.js v1.2.2
- * https://github.com/fengyuanchen/cropperjs
+ * Cropper.js v1.5.6
+ * https://fengyuanchen.github.io/cropperjs
  *
- * Copyright (c) 2015-2018 Chen Fengyuan
+ * Copyright 2015-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-01-03T13:27:18.062Z
+ * Date: 2019-10-04T04:33:48.372Z
  */
-!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?module.exports=i():"function"==typeof define&&define.amd?define(i):t.Cropper=i()}(this,function(){"use strict";var t="undefined"!=typeof window?window:{},i="cropper",e=i+"-crop",a=i+"-disabled",n=i+"-hidden",o=i+"-hide",h=i+"-modal",r=i+"-move",s="action",c="preview",l="crop",d="cropend",p="cropmove",m="cropstart",u="load",g=t.PointerEvent?"pointerdown":"touchstart mousedown",f=t.PointerEvent?"pointermove":"touchmove mousemove",v=t.PointerEvent?"pointerup pointercancel":"touchend touchcancel mouseup",w="wheel mousewheel 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t=this.element,i=this.options,e=this.cropper;X(i.cropstart)&&J(t,m,i.cropstart),X(i.cropmove)&&J(t,p,i.cropmove),X(i.cropend)&&J(t,d,i.cropend),X(i.crop)&&J(t,l,i.crop),X(i.zoom)&&J(t,"zoom",i.zoom),J(e,g,this.onCropStart=z(this.cropStart,this)),i.zoomable&&i.zoomOnWheel&&J(e,w,this.onWheel=z(this.wheel,this)),i.toggleDragModeOnDblclick&&J(e,"dblclick",this.onDblclick=z(this.dblclick,this)),J(t.ownerDocument,f,this.onCropMove=z(this.cropMove,this)),J(t.ownerDocument,v,this.onCropEnd=z(this.cropEnd,this)),i.responsive&&J(window,"resize",this.onResize=z(this.resize,this))},unbind:function(){var t=this.element,i=this.options,e=this.cropper;X(i.cropstart)&&G(t,m,i.cropstart),X(i.cropmove)&&G(t,p,i.cropmove),X(i.cropend)&&G(t,d,i.cropend),X(i.crop)&&G(t,l,i.crop),X(i.zoom)&&G(t,"zoom",i.zoom),G(e,g,this.onCropStart),i.zoomable&&i.zoomOnWheel&&G(e,w,this.onWheel),i.toggleDragModeOnDblclick&&G(e,"dblclick",this.onDblclick),G(t.ownerDocument,f,this.onCropMove),G(t.ownerDocument,v,this.onCropEnd),i.responsive&&G(window,"resize",this.onResize)}},vt={resize:function(){var t=this.options,i=this.container,e=this.containerData,a=Number(t.minContainerWidth)||200,n=Number(t.minContainerHeight)||100;if(!(this.disabled||e.width<=a||e.height<=n)){var o=i.offsetWidth/e.width;if(1!==o||i.offsetHeight!==e.height){var h=void 0,r=void 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0;t.changedTouches?O(t.changedTouches,function(t){e[t.identifier]=st(t)}):e[t.pointerId||0]=st(t),a=Object.keys(e).length>1&&i.zoomable&&i.zoomOnTouch?"zoom":Z(t.target,s),x.test(a)&&!1!==_(this.element,m,{originalEvent:t,action:a})&&(t.preventDefault(),this.action=a,this.cropping=!1,"crop"===a&&(this.cropping=!0,j(this.dragBox,h)))}},cropMove:function(t){var i=this.action;if(!this.disabled&&i){var e=this.pointers;t.preventDefault(),!1!==_(this.element,p,{originalEvent:t,action:i})&&(t.changedTouches?O(t.changedTouches,function(t){S(e[t.identifier],st(t,!0))}):S(e[t.pointerId||0],st(t,!0)),this.change(t))}},cropEnd:function(t){if(!this.disabled){var i=this.action,e=this.pointers;t.changedTouches?O(t.changedTouches,function(t){delete e[t.identifier]}):delete 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y=h[Object.keys(h)[0]],C={x:y.endX-y.startX,y:y.endY-y.startY},M=function(t){switch(t){case"e":m+C.x>v&&(C.x=v-m);break;case"w":c+C.x<g&&(C.x=g-c);break;case"n":l+C.y<f&&(C.y=f-l);break;case"s":u+C.y>w&&(C.y=w-u)}};switch(r){case"all":c+=C.x,l+=C.y;break;case"e":if(C.x>=0&&(m>=v||s&&(l<=f||u>=w))){x=!1;break}M("e"),d+=C.x,s&&(p=d/s,l-=C.x/s/2),d<0&&(r="w",d=0);break;case"n":if(C.y<=0&&(l<=f||s&&(c<=g||m>=v))){x=!1;break}M("n"),p-=C.y,l+=C.y,s&&(d=p*s,c+=C.y*s/2),p<0&&(r="s",p=0);break;case"w":if(C.x<=0&&(c<=g||s&&(l<=f||u>=w))){x=!1;break}M("w"),d-=C.x,c+=C.x,s&&(p=d/s,l+=C.x/s/2),d<0&&(r="e",d=0);break;case"s":if(C.y>=0&&(u>=w||s&&(c<=g||m>=v))){x=!1;break}M("s"),p+=C.y,s&&(d=p*s,c-=C.y*s/2),p<0&&(r="n",p=0);break;case"ne":if(s){if(C.y<=0&&(l<=f||m>=v)){x=!1;break}M("n"),p-=C.y,l+=C.y,d=p*s}else 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o="crop"===t,h=i.movable&&"move"===t;F(a,s,t=o||h?t:"none"),q(a,e,o),q(a,r,h),i.cropBoxMovable||(F(n,s,t),q(n,e,o),q(n,r,h))}return this}},bt=t.Cropper,yt=function(){function t(i){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(B(this,t),!i||!C.test(i.tagName))throw new Error("The first argument is required and must be an <img> or <canvas> element.");this.element=i,this.options=S({},M,Y(e)&&e),this.complete=!1,this.cropped=!1,this.disabled=!1,this.isImg=!1,this.limited=!1,this.loaded=!1,this.ready=!1,this.replaced=!1,this.wheeling=!1,this.originalUrl="",this.canvasData=null,this.cropBoxData=null,this.previews=null,this.pointers={},this.init()}return k(t,[{key:"init",value:function(){var t=this.element,e=t.tagName.toLowerCase(),a=void 0;if(!Z(t,i)){if(F(t,i,this),"img"===e){if(this.isImg=!0,a=t.getAttribute("src")||"",this.originalUrl=a,!a)return;a=t.src}else"canvas"===e&&window.HTMLCanvasElement&&(a=t.toDataURL());this.load(a)}}},{key:"load",value:function(t){var i=this;if(t){this.url=t,this.imageData={};var e=this.element,a=this.options;if(a.checkOrientation&&window.ArrayBuffer)if(b.test(t))y.test(t)?this.read(function(t){var i=t.replace(pt,""),e=atob(i),a=new ArrayBuffer(e.length),n=new Uint8Array(a);return O(n,function(t,i){n[i]=e.charCodeAt(i)}),a}(t)):this.clone();else{var n=new XMLHttpRequest;n.onerror=function(){i.clone()},n.onload=function(){i.read(n.response)},a.checkCrossOrigin&&at(t)&&e.crossOrigin&&(t=nt(t)),n.open("get",t),n.responseType="arraybuffer",n.withCredentials="use-credentials"===e.crossOrigin,n.send()}else this.clone()}}},{key:"read",value:function(t){var i=this.options,e=this.imageData,a=mt(t),n=0,o=1,h=1;if(a>1){this.url=function(t,i){var e="";return O(new Uint8Array(t),function(t){e+=dt(t)}),"data:"+i+";base64,"+btoa(e)}(t,"image/jpeg");var r=function(t){var i=0,e=1,a=1;switch(t){case 2:e=-1;break;case 3:i=-180;break;case 4:a=-1;break;case 5:i=90,a=-1;break;case 6:i=90;break;case 7:i=90,e=-1;break;case 8:i=-90}return{rotate:i,scaleX:e,scaleY:a}}(a);n=r.rotate,o=r.scaleX,h=r.scaleY}i.rotatable&&(e.rotate=n),i.scalable&&(e.scaleX=o,e.scaleY=h),this.clone()}},{key:"clone",value:function(){var t=this.element,i=this.url,e=void 0,a=void 0;this.options.checkCrossOrigin&&at(i)&&((e=t.crossOrigin)?a=i:(e="anonymous",a=nt(i))),this.crossOrigin=e,this.crossOriginUrl=a;var n=document.createElement("img");e&&(n.crossOrigin=e),n.src=a||i;var h=z(this.start,this),r=z(this.stop,this);this.image=n,this.onStart=h,this.onStop=r,this.isImg?t.complete?this.start():J(t,u,h):(J(n,u,h),J(n,"error",r),j(n,o),t.parentNode.insertBefore(n,t.nextSibling))}},{key:"start",value:function(t){var i=this,e=this.isImg?this.element:this.image;t&&(G(e,u,this.onStart),G(e,"error",this.onStop)),function(t,i){if(!t.naturalWidth||rt){var 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m=p.querySelector("."+i+"-container"),u=m.querySelector("."+i+"-canvas"),g=m.querySelector("."+i+"-drag-box"),f=m.querySelector("."+i+"-crop-box"),v=f.querySelector("."+i+"-face");this.container=d,this.cropper=m,this.canvas=u,this.dragBox=g,this.cropBox=f,this.viewBox=m.querySelector("."+i+"-view-box"),this.face=v,u.appendChild(c),j(e,n),d.insertBefore(m,e.nextSibling),this.isImg||P(c,o),this.initPreview(),this.bind(),a.aspectRatio=Math.max(0,a.aspectRatio)||NaN,a.viewMode=Math.max(0,Math.min(3,Math.round(a.viewMode)))||0,this.cropped=a.autoCrop,a.autoCrop?a.modal&&j(g,h):j(f,n),a.guides||j(f.getElementsByClassName(i+"-dashed"),n),a.center||j(f.getElementsByClassName(i+"-center"),n),a.background&&j(m,i+"-bg"),a.highlight||j(v,"cropper-invisible"),a.cropBoxMovable&&(j(v,r),F(v,s,"all")),a.cropBoxResizable||(j(f.getElementsByClassName(i+"-line"),n),j(f.getElementsByClassName(i+"-point"),n)),this.setDragMode(a.dragMode),this.render(),this.ready=!0,this.setData(a.data),this.completing=setTimeout(function(){X(a.ready)&&J(e,"ready",a.ready,{once:!0}),_(e,"ready"),_(e,l,t.getData()),t.complete=!0},0)}}},{key:"unbuild",value:function(){this.ready&&(this.complete||clearTimeout(this.completing),this.ready=!1,this.complete=!1,this.initialImageData=null,this.initialCanvasData=null,this.initialCropBoxData=null,this.containerData=null,this.canvasData=null,this.cropBoxData=null,this.unbind(),this.resetPreview(),this.previews=null,this.viewBox=null,this.cropBox=null,this.dragBox=null,this.canvas=null,this.container=null,this.cropper.parentNode.removeChild(this.cropper),this.cropper=null)}}],[{key:"noConflict",value:function(){return 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i[t.pointerId||0],e&&(t.preventDefault(),Object.keys(i).length||(this.action=""),this.cropping&&(this.cropping=!1,mt(this.dragBox,c,this.cropped&&this.options.modal)),Ct(this.element,x,{originalEvent:t,action:e}))}}},At={change:function(t){var e,i=this.options,a=this.canvasData,n=this.containerData,o=this.cropBoxData,r=this.pointers,h=this.action,s=i.aspectRatio,c=o.left,l=o.top,d=o.width,p=o.height,u=c+d,m=l+p,g=0,f=0,v=n.width,w=n.height,b=!0;!s&&t.shiftKey&&(s=d&&p?d/p:1),this.limited&&(g=o.minLeft,f=o.minTop,v=g+Math.min(n.width,a.width,a.left+a.width),w=f+Math.min(n.height,a.height,a.top+a.height));function x(t){switch(t){case T:u+M.x>v&&(M.x=v-u);break;case E:c+M.x<g&&(M.x=g-c);break;case N:l+M.y<f&&(M.y=f-l);break;case W:m+M.y>w&&(M.y=w-m)}}var y=r[Object.keys(r)[0]],M={x:y.endX-y.startX,y:y.endY-y.startY};switch(h){case D:c+=M.x,l+=M.y;break;case T:if(0<=M.x&&(v<=u||s&&(l<=f||w<=m))){b=!1;break}x(T),(d+=M.x)<0&&(h=E,c-=d=-d),s&&(p=d/s,l+=(o.height-p)/2);break;case N:if(M.y<=0&&(l<=f||s&&(c<=g||v<=u))){b=!1;break}x(N),p-=M.y,l+=M.y,p<0&&(h=W,l-=p=-p),s&&(d=p*s,c+=(o.width-d)/2);break;case E:if(M.x<=0&&(c<=g||s&&(l<=f||w<=m))){b=!1;break}x(E),d-=M.x,c+=M.x,d<0&&(h=T,c-=d=-d),s&&(p=d/s,l+=(o.height-p)/2);break;case W:if(0<=M.y&&(w<=m||s&&(c<=g||v<=u))){b=!1;break}x(W),(p+=M.y)<0&&(h=N,l-=p=-p),s&&(d=p*s,c+=(o.width-d)/2);break;case H:if(s){if(M.y<=0&&(l<=f||v<=u)){b=!1;break}x(N),p-=M.y,l+=M.y,d=p*s}else x(N),x(T),0<=M.x?u<v?d+=M.x:M.y<=0&&l<=f&&(b=!1):d+=M.x,M.y<=0?f<l&&(p-=M.y,l+=M.y):(p-=M.y,l+=M.y);d<0&&p<0?(h=Y,l-=p=-p,c-=d=-d):d<0?(h=L,c-=d=-d):p<0&&(h=z,l-=p=-p);break;case L:if(s){if(M.y<=0&&(l<=f||c<=g)){b=!1;break}x(N),p-=M.y,l+=M.y,d=p*s,c+=o.width-d}else x(N),x(E),M.x<=0?g<c?(d-=M.x,c+=M.x):M.y<=0&&l<=f&&(b=!1):(d-=M.x,c+=M.x),M.y<=0?f<l&&(p-=M.y,l+=M.y):(p-=M.y,l+=M.y);d<0&&p<0?(h=z,l-=p=-p,c-=d=-d):d<0?(h=H,c-=d=-d):p<0&&(h=Y,l-=p=-p);break;case Y:if(s){if(M.x<=0&&(c<=g||w<=m)){b=!1;break}x(E),d-=M.x,c+=M.x,p=d/s}else x(W),x(E),M.x<=0?g<c?(d-=M.x,c+=M.x):0<=M.y&&w<=m&&(b=!1):(d-=M.x,c+=M.x),0<=M.y?m<w&&(p+=M.y):p+=M.y;d<0&&p<0?(h=H,l-=p=-p,c-=d=-d):d<0?(h=z,c-=d=-d):p<0&&(h=L,l-=p=-p);break;case z:if(s){if(0<=M.x&&(v<=u||w<=m)){b=!1;break}x(T),p=(d+=M.x)/s}else x(W),x(T),0<=M.x?u<v?d+=M.x:0<=M.y&&w<=m&&(b=!1):d+=M.x,0<=M.y?m<w&&(p+=M.y):p+=M.y;d<0&&p<0?(h=L,l-=p=-p,c-=d=-d):d<0?(h=Y,c-=d=-d):p<0&&(h=H,l-=p=-p);break;case k:this.move(M.x,M.y),b=!1;break;case O:this.zoom(function(t){var e=C({},t),s=[];return rt(t,function(h,t){delete e[t],rt(e,function(t){var e=Math.abs(h.startX-t.startX),i=Math.abs(h.startY-t.startY),a=Math.abs(h.endX-t.endX),n=Math.abs(h.endY-t.endY),o=Math.sqrt(e*e+i*i),r=(Math.sqrt(a*a+n*n)-o)/o;s.push(r)})}),s.sort(function(t,e){return Math.abs(t)<Math.abs(e)}),s[0]}(r),t),b=!1;break;case B:if(!M.x||!M.y){b=!1;break}e=Dt(this.cropper),c=y.startX-e.left,l=y.startY-e.top,d=o.minWidth,p=o.minHeight,0<M.x?h=0<M.y?z:H:M.x<0&&(c-=d,h=0<M.y?Y:L),M.y<0&&(l-=p),this.cropped||(ut(this.cropBox,X),this.cropped=!0,this.limited&&this.limitCropBox(!0,!0))}b&&(o.width=d,o.height=p,o.left=c,o.top=l,this.action=h,this.renderCropBox()),rt(r,function(t){t.startX=t.endX,t.startY=t.endY})}},jt={crop:function(){return!this.ready||this.cropped||this.disabled||(this.cropped=!0,this.limitCropBox(!0,!0),this.options.modal&&pt(this.dragBox,c),ut(this.cropBox,X),this.setCropBoxData(this.initialCropBoxData)),this},reset:function(){return this.ready&&!this.disabled&&(this.imageData=ht({},this.initialImageData),this.canvasData=ht({},this.initialCanvasData),this.cropBoxData=ht({},this.initialCropBoxData),this.renderCanvas(),this.cropped&&this.renderCropBox()),this},clear:function(){return this.cropped&&!this.disabled&&(ht(this.cropBoxData,{left:0,top:0,width:0,height:0}),this.cropped=!1,this.renderCropBox(),this.limitCanvas(!0,!0),this.renderCanvas(),ut(this.dragBox,c),pt(this.cropBox,X)),this},replace:function(e,t){var i=1<arguments.length&&void 0!==t&&t;return!this.disabled&&e&&(this.isImg&&(this.element.src=e),i?(this.url=e,this.image.src=e,this.ready&&(this.viewBoxImage.src=e,rt(this.previews,function(t){t.getElementsByTagName("img")[0].src=e}))):(this.isImg&&(this.replaced=!0),this.options.data=null,this.uncreate(),this.load(e))),this},enable:function(){return this.ready&&this.disabled&&(this.disabled=!1,ut(this.cropper,s)),this},disable:function(){return this.ready&&!this.disabled&&(this.disabled=!0,pt(this.cropper,s)),this},destroy:function(){var t=this.element;return t[l]&&(t[l]=void 0,this.isImg&&this.replaced&&(t.src=this.originalUrl),this.uncreate()),this},move:function(t,e){var i=1<arguments.length&&void 0!==e?e:t,a=this.canvasData,n=a.left,o=a.top;return this.moveTo(_(t)?t:n+Number(t),_(i)?i:o+Number(i))},moveTo:function(t,e){var i=1<arguments.length&&void 0!==e?e:t,a=this.canvasData,n=!1;return t=Number(t),i=Number(i),this.ready&&!this.disabled&&this.options.movable&&(F(t)&&(a.left=t,n=!0),F(i)&&(a.top=i,n=!0),n&&this.renderCanvas(!0)),this},zoom:function(t,e){var i=this.canvasData;return t=(t=Number(t))<0?1/(1-t):1+t,this.zoomTo(i.width*t/i.naturalWidth,null,e)},zoomTo:function(t,e,i){var a=this.options,n=this.canvasData,o=n.width,r=n.height,h=n.naturalWidth,s=n.naturalHeight;if(0<=(t=Number(t))&&this.ready&&!this.disabled&&a.zoomable){var c=h*t,l=s*t;if(!1===Ct(this.element,U,{ratio:t,oldRatio:o/h,originalEvent:i}))return this;if(i){var d=this.pointers,p=Dt(this.cropper),u=d&&Object.keys(d).length?function(t){var a=0,n=0,o=0;return rt(t,function(t){var e=t.startX,i=t.startY;a+=e,n+=i,o+=1}),{pageX:a/=o,pageY:n/=o}}(d):{pageX:i.pageX,pageY:i.pageY};n.left-=(c-o)*((u.pageX-p.left-n.left)/o),n.top-=(l-r)*((u.pageY-p.top-n.top)/r)}else it(e)&&F(e.x)&&F(e.y)?(n.left-=(c-o)*((e.x-n.left)/o),n.top-=(l-r)*((e.y-n.top)/r)):(n.left-=(c-o)/2,n.top-=(l-r)/2);n.width=c,n.height=l,this.renderCanvas(!0)}return this},rotate:function(t){return this.rotateTo((this.imageData.rotate||0)+Number(t))},rotateTo:function(t){return F(t=Number(t))&&this.ready&&!this.disabled&&this.options.rotatable&&(this.imageData.rotate=t%360,this.renderCanvas(!0,!0)),this},scaleX:function(t){var e=this.imageData.scaleY;return this.scale(t,F(e)?e:1)},scaleY:function(t){var e=this.imageData.scaleX;return this.scale(F(e)?e:1,t)},scale:function(t,e){var i=1<arguments.length&&void 0!==e?e:t,a=this.imageData,n=!1;return t=Number(t),i=Number(i),this.ready&&!this.disabled&&this.options.scalable&&(F(t)&&(a.scaleX=t,n=!0),F(i)&&(a.scaleY=i,n=!0),n&&this.renderCanvas(!0,!0)),this},getData:function(t){var i,e=0<arguments.length&&void 0!==t&&t,a=this.options,n=this.imageData,o=this.canvasData,r=this.cropBoxData;if(this.ready&&this.cropped){i={x:r.left-o.left,y:r.top-o.top,width:r.width,height:r.height};var h=n.width/n.naturalWidth;if(rt(i,function(t,e){i[e]=t/h}),e){var s=Math.round(i.y+i.height),c=Math.round(i.x+i.width);i.x=Math.round(i.x),i.y=Math.round(i.y),i.width=c-i.x,i.height=s-i.y}}else i={x:0,y:0,width:0,height:0};return a.rotatable&&(i.rotate=n.rotate||0),a.scalable&&(i.scaleX=n.scaleX||1,i.scaleY=n.scaleY||1),i},setData:function(t){var e=this.options,i=this.imageData,a=this.canvasData,n={};if(this.ready&&!this.disabled&&it(t)){var o=!1;e.rotatable&&F(t.rotate)&&t.rotate!==i.rotate&&(i.rotate=t.rotate,o=!0),e.scalable&&(F(t.scaleX)&&t.scaleX!==i.scaleX&&(i.scaleX=t.scaleX,o=!0),F(t.scaleY)&&t.scaleY!==i.scaleY&&(i.scaleY=t.scaleY,o=!0)),o&&this.renderCanvas(!0,!0);var r=i.width/i.naturalWidth;F(t.x)&&(n.left=t.x*r+a.left),F(t.y)&&(n.top=t.y*r+a.top),F(t.width)&&(n.width=t.width*r),F(t.height)&&(n.height=t.height*r),this.setCropBoxData(n)}return this},getContainerData:function(){return this.ready?ht({},this.containerData):{}},getImageData:function(){return this.sized?ht({},this.imageData):{}},getCanvasData:function(){var e=this.canvasData,i={};return this.ready&&rt(["left","top","width","height","naturalWidth","naturalHeight"],function(t){i[t]=e[t]}),i},setCanvasData:function(t){var e=this.canvasData,i=e.aspectRatio;return this.ready&&!this.disabled&&it(t)&&(F(t.left)&&(e.left=t.left),F(t.top)&&(e.top=t.top),F(t.width)?(e.width=t.width,e.height=t.width/i):F(t.height)&&(e.height=t.height,e.width=t.height*i),this.renderCanvas(!0)),this},getCropBoxData:function(){var t,e=this.cropBoxData;return this.ready&&this.cropped&&(t={left:e.left,top:e.top,width:e.width,height:e.height}),t||{}},setCropBoxData:function(t){var e,i,a=this.cropBoxData,n=this.options.aspectRatio;return this.ready&&this.cropped&&!this.disabled&&it(t)&&(F(t.left)&&(a.left=t.left),F(t.top)&&(a.top=t.top),F(t.width)&&t.width!==a.width&&(e=!0,a.width=t.width),F(t.height)&&t.height!==a.height&&(i=!0,a.height=t.height),n&&(e?a.height=a.width/n:i&&(a.width=a.height*n)),this.renderCropBox()),this},getCroppedCanvas:function(t){var e=0<arguments.length&&void 0!==t?t:{};if(!this.ready||!window.HTMLCanvasElement)return null;var i=this.canvasData,a=function(t,e,i,a){var n=e.aspectRatio,o=e.naturalWidth,r=e.naturalHeight,h=e.rotate,s=void 0===h?0:h,c=e.scaleX,l=void 0===c?1:c,d=e.scaleY,p=void 0===d?1:d,u=i.aspectRatio,m=i.naturalWidth,g=i.naturalHeight,f=a.fillColor,v=void 0===f?"transparent":f,w=a.imageSmoothingEnabled,b=void 0===w||w,x=a.imageSmoothingQuality,y=void 0===x?"low":x,M=a.maxWidth,C=void 0===M?1/0:M,D=a.maxHeight,B=void 0===D?1/0:D,k=a.minWidth,O=void 0===k?0:k,T=a.minHeight,E=void 0===T?0:T,W=document.createElement("canvas"),N=W.getContext("2d"),H=Nt({aspectRatio:u,width:C,height:B}),L=Nt({aspectRatio:u,width:O,height:E},"cover"),z=Math.min(H.width,Math.max(L.width,m)),Y=Math.min(H.height,Math.max(L.height,g)),X=Nt({aspectRatio:n,width:C,height:B}),R=Nt({aspectRatio:n,width:O,height:E},"cover"),S=Math.min(X.width,Math.max(R.width,o)),A=Math.min(X.height,Math.max(R.height,r)),j=[-S/2,-A/2,S,A];return W.width=ct(z),W.height=ct(Y),N.fillStyle=v,N.fillRect(0,0,z,Y),N.save(),N.translate(z/2,Y/2),N.rotate(s*Math.PI/180),N.scale(l,p),N.imageSmoothingEnabled=b,N.imageSmoothingQuality=y,N.drawImage.apply(N,[t].concat(P(j.map(function(t){return Math.floor(ct(t))})))),N.restore(),W}(this.image,this.imageData,i,e);if(!this.cropped)return a;var n=this.getData(),o=n.x,r=n.y,h=n.width,s=n.height,c=a.width/Math.floor(i.naturalWidth);1!=c&&(o*=c,r*=c,h*=c,s*=c);var l=h/s,d=Nt({aspectRatio:l,width:e.maxWidth||1/0,height:e.maxHeight||1/0}),p=Nt({aspectRatio:l,width:e.minWidth||0,height:e.minHeight||0},"cover"),u=Nt({aspectRatio:l,width:e.width||(1!=c?a.width:h),height:e.height||(1!=c?a.height:s)}),m=u.width,g=u.height;m=Math.min(d.width,Math.max(p.width,m)),g=Math.min(d.height,Math.max(p.height,g));var f=document.createElement("canvas"),v=f.getContext("2d");f.width=ct(m),f.height=ct(g),v.fillStyle=e.fillColor||"transparent",v.fillRect(0,0,m,g);var w=e.imageSmoothingEnabled,b=void 0===w||w,x=e.imageSmoothingQuality;v.imageSmoothingEnabled=b,x&&(v.imageSmoothingQuality=x);var y,M,C,D,B,k,O=a.width,T=a.height,E=o,W=r;E<=-h||O<E?B=C=y=E=0:E<=0?(C=-E,E=0,B=y=Math.min(O,h+E)):E<=O&&(C=0,B=y=Math.min(h,O-E)),y<=0||W<=-s||T<W?k=D=M=W=0:W<=0?(D=-W,W=0,k=M=Math.min(T,s+W)):W<=T&&(D=0,k=M=Math.min(s,T-W));var N=[E,W,y,M];if(0<B&&0<k){var H=m/h;N.push(C*H,D*H,B*H,k*H)}return v.drawImage.apply(v,[a].concat(P(N.map(function(t){return 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function(t,e,i){e&&a(t.prototype,e),i&&a(t,i)}(i,[{key:"init",value:function(){var t,e=this.element,i=e.tagName.toLowerCase();if(!e[l]){if(e[l]=this,"img"===i){if(this.isImg=!0,t=e.getAttribute("src")||"",!(this.originalUrl=t))return;t=e.src}else"canvas"===i&&window.HTMLCanvasElement&&(t=e.toDataURL());this.load(t)}}},{key:"load",value:function(t){var e=this;if(t){this.url=t,this.imageData={};var i=this.element,a=this.options;if(a.rotatable||a.scalable||(a.checkOrientation=!1),a.checkOrientation&&window.ArrayBuffer)if(Q.test(t))K.test(t)?this.read(function(t){var e=t.replace(Lt,""),i=atob(e),a=new ArrayBuffer(i.length),n=new Uint8Array(a);return rt(n,function(t,e){n[e]=i.charCodeAt(e)}),a}(t)):this.clone();else{var n=new XMLHttpRequest,o=this.clone.bind(this);this.reloading=!0,(this.xhr=n).onabort=o,n.onerror=o,n.ontimeout=o,n.onprogress=function(){n.getResponseHeader("content-type")!==q&&n.abort()},n.onload=function(){e.read(n.response)},n.onloadend=function(){e.reloading=!1,e.xhr=null},a.checkCrossOrigin&&Ot(t)&&i.crossOrigin&&(t=Tt(t)),n.open("GET",t),n.responseType="arraybuffer",n.withCredentials="use-credentials"===i.crossOrigin,n.send()}else this.clone()}}},{key:"read",value:function(t){var e=this.options,i=this.imageData,a=zt(t),n=0,o=1,r=1;if(1<a){this.url=function(t,e){for(var i=[],a=new Uint8Array(t);0<a.length;)i.push(Ht.apply(null,ot(a.subarray(0,8192)))),a=a.subarray(8192);return"data:".concat(e,";base64,").concat(btoa(i.join("")))}(t,q);var h=function(t){var e=0,i=1,a=1;switch(t){case 2:i=-1;break;case 3:e=-180;break;case 4:a=-1;break;case 5:e=90,a=-1;break;case 6:e=90;break;case 7:e=90,i=-1;break;case 8:e=-90}return{rotate:e,scaleX:i,scaleY:a}}(a);n=h.rotate,o=h.scaleX,r=h.scaleY}e.rotatable&&(i.rotate=n),e.scalable&&(i.scaleX=o,i.scaleY=r),this.clone()}},{key:"clone",value:function(){var t=this.element,e=this.url,i=t.crossOrigin,a=e;this.options.checkCrossOrigin&&Ot(e)&&(i=i||"anonymous",a=Tt(e)),this.crossOrigin=i,this.crossOriginUrl=a;var n=document.createElement("img");i&&(n.crossOrigin=i),n.src=a||e,n.alt=t.alt||"The image to crop",(this.image=n).onload=this.start.bind(this),n.onerror=this.stop.bind(this),pt(n,d),t.parentNode.insertBefore(n,t.nextSibling)}},{key:"start",value:function(){var i=this,t=this.image;t.onload=null,t.onerror=null,this.sizing=!0;function e(t,e){ht(i.imageData,{naturalWidth:t,naturalHeight:e,aspectRatio:t/e}),i.sizing=!1,i.sized=!0,i.build()}var a=r.navigator&&/(?:iPad|iPhone|iPod).*?AppleWebKit/i.test(r.navigator.userAgent);if(!t.naturalWidth||a){var 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