' + '' + '' + '
';\n\n /**\n * Check if the given value is not a number.\n */\n\n var isNaN = Number.isNaN || WINDOW.isNaN;\n /**\n * Check if the given value is a number.\n * @param {*} value - The value to check.\n * @returns {boolean} Returns `true` if the given value is a number, else `false`.\n */\n\n function isNumber(value) {\n return typeof value === 'number' && !isNaN(value);\n }\n /**\n * Check if the given value is a positive number.\n * @param {*} value - The value to check.\n * @returns {boolean} Returns `true` if the given value is a positive number, else `false`.\n */\n\n var isPositiveNumber = function isPositiveNumber(value) {\n return value > 0 && value < Infinity;\n };\n /**\n * Check if the given value is undefined.\n * @param {*} value - The value to check.\n * @returns {boolean} Returns `true` if the given value is undefined, else `false`.\n */\n\n function isUndefined(value) {\n return typeof value === 'undefined';\n }\n /**\n * Check if the given value is an object.\n * @param {*} value - The value to check.\n * @returns {boolean} Returns `true` if the given value is an object, else `false`.\n */\n\n function isObject(value) {\n return _typeof(value) === 'object' && value !== null;\n }\n var hasOwnProperty = Object.prototype.hasOwnProperty;\n /**\n * Check if the given value is a plain object.\n * @param {*} value - The value to check.\n * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.\n */\n\n function isPlainObject(value) {\n if (!isObject(value)) {\n return false;\n }\n\n try {\n var _constructor = value.constructor;\n var prototype = _constructor.prototype;\n return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');\n } catch (error) {\n return false;\n }\n }\n /**\n * Check if the given value is a function.\n * @param {*} value - The value to check.\n * @returns {boolean} Returns `true` if the given value is a function, else `false`.\n */\n\n function isFunction(value) {\n return typeof value === 'function';\n }\n var slice = Array.prototype.slice;\n /**\n * Convert array-like or iterable object to an array.\n * @param {*} value - The value to convert.\n * @returns {Array} Returns a new array.\n */\n\n function toArray(value) {\n return Array.from ? Array.from(value) : slice.call(value);\n }\n /**\n * Iterate the given data.\n * @param {*} data - The data to iterate.\n * @param {Function} callback - The process function for each element.\n * @returns {*} The original data.\n */\n\n function forEach(data, callback) {\n if (data && isFunction(callback)) {\n if (Array.isArray(data) || isNumber(data.length)\n /* array-like */\n ) {\n toArray(data).forEach(function (value, key) {\n callback.call(data, value, key, data);\n });\n } else if (isObject(data)) {\n Object.keys(data).forEach(function (key) {\n callback.call(data, data[key], key, data);\n });\n }\n }\n\n return data;\n }\n /**\n * Extend the given object.\n * @param {*} target - The target object to extend.\n * @param {*} args - The rest objects for merging to the target object.\n * @returns {Object} The extended object.\n */\n\n var assign = Object.assign || function assign(target) {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n if (isObject(target) && args.length > 0) {\n args.forEach(function (arg) {\n if (isObject(arg)) {\n Object.keys(arg).forEach(function (key) {\n target[key] = arg[key];\n });\n }\n });\n }\n\n return target;\n };\n var REGEXP_DECIMALS = /\\.\\d*(?:0|9){12}\\d*$/;\n /**\n * Normalize decimal number.\n * Check out {@link http://0.30000000000000004.com/}\n * @param {number} value - The value to normalize.\n * @param {number} [times=100000000000] - The times for normalizing.\n * @returns {number} Returns the normalized number.\n */\n\n function normalizeDecimalNumber(value) {\n var times = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 100000000000;\n return REGEXP_DECIMALS.test(value) ? Math.round(value * times) / times : value;\n }\n var REGEXP_SUFFIX = /^width|height|left|top|marginLeft|marginTop$/;\n /**\n * Apply styles to the given element.\n * @param {Element} element - The target element.\n * @param {Object} styles - The styles for applying.\n */\n\n function setStyle(element, styles) {\n var style = element.style;\n forEach(styles, function (value, property) {\n if (REGEXP_SUFFIX.test(property) && isNumber(value)) {\n value = \"\".concat(value, \"px\");\n }\n\n style[property] = value;\n });\n }\n /**\n * Check if the given element has a special class.\n * @param {Element} element - The element to check.\n * @param {string} value - The class to search.\n * @returns {boolean} Returns `true` if the special class was found.\n */\n\n function hasClass(element, value) {\n return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;\n }\n /**\n * Add classes to the given element.\n * @param {Element} element - The target element.\n * @param {string} value - The classes to be added.\n */\n\n function addClass(element, value) {\n if (!value) {\n return;\n }\n\n if (isNumber(element.length)) {\n forEach(element, function (elem) {\n addClass(elem, value);\n });\n return;\n }\n\n if (element.classList) {\n element.classList.add(value);\n return;\n }\n\n var className = element.className.trim();\n\n if (!className) {\n element.className = value;\n } else if (className.indexOf(value) < 0) {\n element.className = \"\".concat(className, \" \").concat(value);\n }\n }\n /**\n * Remove classes from the given element.\n * @param {Element} element - The target element.\n * @param {string} value - The classes to be removed.\n */\n\n function removeClass(element, value) {\n if (!value) {\n return;\n }\n\n if (isNumber(element.length)) {\n forEach(element, function (elem) {\n removeClass(elem, value);\n });\n return;\n }\n\n if (element.classList) {\n element.classList.remove(value);\n return;\n }\n\n if (element.className.indexOf(value) >= 0) {\n element.className = element.className.replace(value, '');\n }\n }\n /**\n * Add or remove classes from the given element.\n * @param {Element} element - The target element.\n * @param {string} value - The classes to be toggled.\n * @param {boolean} added - Add only.\n */\n\n function toggleClass(element, value, added) {\n if (!value) {\n return;\n }\n\n if (isNumber(element.length)) {\n forEach(element, function (elem) {\n toggleClass(elem, value, added);\n });\n return;\n } // IE10-11 doesn't support the second parameter of `classList.toggle`\n\n\n if (added) {\n addClass(element, value);\n } else {\n removeClass(element, value);\n }\n }\n var REGEXP_CAMEL_CASE = /([a-z\\d])([A-Z])/g;\n /**\n * Transform the given string from camelCase to kebab-case\n * @param {string} value - The value to transform.\n * @returns {string} The transformed value.\n */\n\n function toParamCase(value) {\n return value.replace(REGEXP_CAMEL_CASE, '$1-$2').toLowerCase();\n }\n /**\n * Get data from the given element.\n * @param {Element} element - The target element.\n * @param {string} name - The data key to get.\n * @returns {string} The data value.\n */\n\n function getData(element, name) {\n if (isObject(element[name])) {\n return element[name];\n }\n\n if (element.dataset) {\n return element.dataset[name];\n }\n\n return element.getAttribute(\"data-\".concat(toParamCase(name)));\n }\n /**\n * Set data to the given element.\n * @param {Element} element - The target element.\n * @param {string} name - The data key to set.\n * @param {string} data - The data value.\n */\n\n function setData(element, name, data) {\n if (isObject(data)) {\n element[name] = data;\n } else if (element.dataset) {\n element.dataset[name] = data;\n } else {\n element.setAttribute(\"data-\".concat(toParamCase(name)), data);\n }\n }\n /**\n * Remove data from the given element.\n * @param {Element} element - The target element.\n * @param {string} name - The data key to remove.\n */\n\n function removeData(element, name) {\n if (isObject(element[name])) {\n try {\n delete element[name];\n } catch (error) {\n element[name] = undefined;\n }\n } else if (element.dataset) {\n // #128 Safari not allows to delete dataset property\n try {\n delete element.dataset[name];\n } catch (error) {\n element.dataset[name] = undefined;\n }\n } else {\n element.removeAttribute(\"data-\".concat(toParamCase(name)));\n }\n }\n var REGEXP_SPACES = /\\s\\s*/;\n\n var onceSupported = function () {\n var supported = false;\n\n if (IS_BROWSER) {\n var once = false;\n\n var listener = function listener() {};\n\n var options = Object.defineProperty({}, 'once', {\n get: function get() {\n supported = true;\n return once;\n },\n\n /**\n * This setter can fix a `TypeError` in strict mode\n * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}\n * @param {boolean} value - The value to set\n */\n set: function set(value) {\n once = value;\n }\n });\n WINDOW.addEventListener('test', listener, options);\n WINDOW.removeEventListener('test', listener, options);\n }\n\n return supported;\n }();\n /**\n * Remove event listener from the target element.\n * @param {Element} element - The event target.\n * @param {string} type - The event type(s).\n * @param {Function} listener - The event listener.\n * @param {Object} options - The event options.\n */\n\n\n function removeListener(element, type, listener) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n var handler = listener;\n type.trim().split(REGEXP_SPACES).forEach(function (event) {\n if (!onceSupported) {\n var listeners = element.listeners;\n\n if (listeners && listeners[event] && listeners[event][listener]) {\n handler = listeners[event][listener];\n delete listeners[event][listener];\n\n if (Object.keys(listeners[event]).length === 0) {\n delete listeners[event];\n }\n\n if (Object.keys(listeners).length === 0) {\n delete element.listeners;\n }\n }\n }\n\n element.removeEventListener(event, handler, options);\n });\n }\n /**\n * Add event listener to the target element.\n * @param {Element} element - The event target.\n * @param {string} type - The event type(s).\n * @param {Function} listener - The event listener.\n * @param {Object} options - The event options.\n */\n\n function addListener(element, type, listener) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n var _handler = listener;\n type.trim().split(REGEXP_SPACES).forEach(function (event) {\n if (options.once && !onceSupported) {\n var _element$listeners = element.listeners,\n listeners = _element$listeners === void 0 ? {} : _element$listeners;\n\n _handler = function handler() {\n delete listeners[event][listener];\n element.removeEventListener(event, _handler, options);\n\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n listener.apply(element, args);\n };\n\n if (!listeners[event]) {\n listeners[event] = {};\n }\n\n if (listeners[event][listener]) {\n element.removeEventListener(event, listeners[event][listener], options);\n }\n\n listeners[event][listener] = _handler;\n element.listeners = listeners;\n }\n\n element.addEventListener(event, _handler, options);\n });\n }\n /**\n * Dispatch event on the target element.\n * @param {Element} element - The event target.\n * @param {string} type - The event type(s).\n * @param {Object} data - The additional event data.\n * @returns {boolean} Indicate if the event is default prevented or not.\n */\n\n function dispatchEvent(element, type, data) {\n var event; // Event and CustomEvent on IE9-11 are global objects, not constructors\n\n if (isFunction(Event) && isFunction(CustomEvent)) {\n event = new CustomEvent(type, {\n detail: data,\n bubbles: true,\n cancelable: true\n });\n } else {\n event = document.createEvent('CustomEvent');\n event.initCustomEvent(type, true, true, data);\n }\n\n return element.dispatchEvent(event);\n }\n /**\n * Get the offset base on the document.\n * @param {Element} element - The target element.\n * @returns {Object} The offset data.\n */\n\n function getOffset(element) {\n var box = element.getBoundingClientRect();\n return {\n left: box.left + (window.pageXOffset - document.documentElement.clientLeft),\n top: box.top + (window.pageYOffset - document.documentElement.clientTop)\n };\n }\n var location = WINDOW.location;\n var REGEXP_ORIGINS = /^(\\w+:)\\/\\/([^:/?#]*):?(\\d*)/i;\n /**\n * Check if the given URL is a cross origin URL.\n * @param {string} url - The target URL.\n * @returns {boolean} Returns `true` if the given URL is a cross origin URL, else `false`.\n */\n\n function isCrossOriginURL(url) {\n var parts = url.match(REGEXP_ORIGINS);\n return parts !== null && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);\n }\n /**\n * Add timestamp to the given URL.\n * @param {string} url - The target URL.\n * @returns {string} The result URL.\n */\n\n function addTimestamp(url) {\n var timestamp = \"timestamp=\".concat(new Date().getTime());\n return url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp;\n }\n /**\n * Get transforms base on the given object.\n * @param {Object} obj - The target object.\n * @returns {string} A string contains transform values.\n */\n\n function getTransforms(_ref) {\n var rotate = _ref.rotate,\n scaleX = _ref.scaleX,\n scaleY = _ref.scaleY,\n translateX = _ref.translateX,\n translateY = _ref.translateY;\n var values = [];\n\n if (isNumber(translateX) && translateX !== 0) {\n values.push(\"translateX(\".concat(translateX, \"px)\"));\n }\n\n if (isNumber(translateY) && translateY !== 0) {\n values.push(\"translateY(\".concat(translateY, \"px)\"));\n } // Rotate should come first before scale to match orientation transform\n\n\n if (isNumber(rotate) && rotate !== 0) {\n values.push(\"rotate(\".concat(rotate, \"deg)\"));\n }\n\n if (isNumber(scaleX) && scaleX !== 1) {\n values.push(\"scaleX(\".concat(scaleX, \")\"));\n }\n\n if (isNumber(scaleY) && scaleY !== 1) {\n values.push(\"scaleY(\".concat(scaleY, \")\"));\n }\n\n var transform = values.length ? values.join(' ') : 'none';\n return {\n WebkitTransform: transform,\n msTransform: transform,\n transform: transform\n };\n }\n /**\n * Get the max ratio of a group of pointers.\n * @param {string} pointers - The target pointers.\n * @returns {number} The result ratio.\n */\n\n function getMaxZoomRatio(pointers) {\n var pointers2 = _objectSpread2({}, pointers);\n\n var ratios = [];\n forEach(pointers, function (pointer, pointerId) {\n delete pointers2[pointerId];\n forEach(pointers2, function (pointer2) {\n var x1 = Math.abs(pointer.startX - pointer2.startX);\n var y1 = Math.abs(pointer.startY - pointer2.startY);\n var x2 = Math.abs(pointer.endX - pointer2.endX);\n var y2 = Math.abs(pointer.endY - pointer2.endY);\n var z1 = Math.sqrt(x1 * x1 + y1 * y1);\n var z2 = Math.sqrt(x2 * x2 + y2 * y2);\n var ratio = (z2 - z1) / z1;\n ratios.push(ratio);\n });\n });\n ratios.sort(function (a, b) {\n return Math.abs(a) < Math.abs(b);\n });\n return ratios[0];\n }\n /**\n * Get a pointer from an event object.\n * @param {Object} event - The target event object.\n * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.\n * @returns {Object} The result pointer contains start and/or end point coordinates.\n */\n\n function getPointer(_ref2, endOnly) {\n var pageX = _ref2.pageX,\n pageY = _ref2.pageY;\n var end = {\n endX: pageX,\n endY: pageY\n };\n return endOnly ? end : _objectSpread2({\n startX: pageX,\n startY: pageY\n }, end);\n }\n /**\n * Get the center point coordinate of a group of pointers.\n * @param {Object} pointers - The target pointers.\n * @returns {Object} The center point coordinate.\n */\n\n function getPointersCenter(pointers) {\n var pageX = 0;\n var pageY = 0;\n var count = 0;\n forEach(pointers, function (_ref3) {\n var startX = _ref3.startX,\n startY = _ref3.startY;\n pageX += startX;\n pageY += startY;\n count += 1;\n });\n pageX /= count;\n pageY /= count;\n return {\n pageX: pageX,\n pageY: pageY\n };\n }\n /**\n * Get the max sizes in a rectangle under the given aspect ratio.\n * @param {Object} data - The original sizes.\n * @param {string} [type='contain'] - The adjust type.\n * @returns {Object} The result sizes.\n */\n\n function getAdjustedSizes(_ref4) // or 'cover'\n {\n var aspectRatio = _ref4.aspectRatio,\n height = _ref4.height,\n width = _ref4.width;\n var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'contain';\n var isValidWidth = isPositiveNumber(width);\n var isValidHeight = isPositiveNumber(height);\n\n if (isValidWidth && isValidHeight) {\n var adjustedWidth = height * aspectRatio;\n\n if (type === 'contain' && adjustedWidth > width || type === 'cover' && adjustedWidth < width) {\n height = width / aspectRatio;\n } else {\n width = height * aspectRatio;\n }\n } else if (isValidWidth) {\n height = width / aspectRatio;\n } else if (isValidHeight) {\n width = height * aspectRatio;\n }\n\n return {\n width: width,\n height: height\n };\n }\n /**\n * Get the new sizes of a rectangle after rotated.\n * @param {Object} data - The original sizes.\n * @returns {Object} The result sizes.\n */\n\n function getRotatedSizes(_ref5) {\n var width = _ref5.width,\n height = _ref5.height,\n degree = _ref5.degree;\n degree = Math.abs(degree) % 180;\n\n if (degree === 90) {\n return {\n width: height,\n height: width\n };\n }\n\n var arc = degree % 90 * Math.PI / 180;\n var sinArc = Math.sin(arc);\n var cosArc = Math.cos(arc);\n var newWidth = width * cosArc + height * sinArc;\n var newHeight = width * sinArc + height * cosArc;\n return degree > 90 ? {\n width: newHeight,\n height: newWidth\n } : {\n width: newWidth,\n height: newHeight\n };\n }\n /**\n * Get a canvas which drew the given image.\n * @param {HTMLImageElement} image - The image for drawing.\n * @param {Object} imageData - The image data.\n * @param {Object} canvasData - The canvas data.\n * @param {Object} options - The options.\n * @returns {HTMLCanvasElement} The result canvas.\n */\n\n function getSourceCanvas(image, _ref6, _ref7, _ref8) {\n var imageAspectRatio = _ref6.aspectRatio,\n imageNaturalWidth = _ref6.naturalWidth,\n imageNaturalHeight = _ref6.naturalHeight,\n _ref6$rotate = _ref6.rotate,\n rotate = _ref6$rotate === void 0 ? 0 : _ref6$rotate,\n _ref6$scaleX = _ref6.scaleX,\n scaleX = _ref6$scaleX === void 0 ? 1 : _ref6$scaleX,\n _ref6$scaleY = _ref6.scaleY,\n scaleY = _ref6$scaleY === void 0 ? 1 : _ref6$scaleY;\n var aspectRatio = _ref7.aspectRatio,\n naturalWidth = _ref7.naturalWidth,\n naturalHeight = _ref7.naturalHeight;\n var _ref8$fillColor = _ref8.fillColor,\n fillColor = _ref8$fillColor === void 0 ? 'transparent' : _ref8$fillColor,\n _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,\n imageSmoothingEnabled = _ref8$imageSmoothingE === void 0 ? true : _ref8$imageSmoothingE,\n _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,\n imageSmoothingQuality = _ref8$imageSmoothingQ === void 0 ? 'low' : _ref8$imageSmoothingQ,\n _ref8$maxWidth = _ref8.maxWidth,\n maxWidth = _ref8$maxWidth === void 0 ? Infinity : _ref8$maxWidth,\n _ref8$maxHeight = _ref8.maxHeight,\n maxHeight = _ref8$maxHeight === void 0 ? Infinity : _ref8$maxHeight,\n _ref8$minWidth = _ref8.minWidth,\n minWidth = _ref8$minWidth === void 0 ? 0 : _ref8$minWidth,\n _ref8$minHeight = _ref8.minHeight,\n minHeight = _ref8$minHeight === void 0 ? 0 : _ref8$minHeight;\n var canvas = document.createElement('canvas');\n var context = canvas.getContext('2d');\n var maxSizes = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: maxWidth,\n height: maxHeight\n });\n var minSizes = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: minWidth,\n height: minHeight\n }, 'cover');\n var width = Math.min(maxSizes.width, Math.max(minSizes.width, naturalWidth));\n var height = Math.min(maxSizes.height, Math.max(minSizes.height, naturalHeight)); // Note: should always use image's natural sizes for drawing as\n // imageData.naturalWidth === canvasData.naturalHeight when rotate % 180 === 90\n\n var destMaxSizes = getAdjustedSizes({\n aspectRatio: imageAspectRatio,\n width: maxWidth,\n height: maxHeight\n });\n var destMinSizes = getAdjustedSizes({\n aspectRatio: imageAspectRatio,\n width: minWidth,\n height: minHeight\n }, 'cover');\n var destWidth = Math.min(destMaxSizes.width, Math.max(destMinSizes.width, imageNaturalWidth));\n var destHeight = Math.min(destMaxSizes.height, Math.max(destMinSizes.height, imageNaturalHeight));\n var params = [-destWidth / 2, -destHeight / 2, destWidth, destHeight];\n canvas.width = normalizeDecimalNumber(width);\n canvas.height = normalizeDecimalNumber(height);\n context.fillStyle = fillColor;\n context.fillRect(0, 0, width, height);\n context.save();\n context.translate(width / 2, height / 2);\n context.rotate(rotate * Math.PI / 180);\n context.scale(scaleX, scaleY);\n context.imageSmoothingEnabled = imageSmoothingEnabled;\n context.imageSmoothingQuality = imageSmoothingQuality;\n context.drawImage.apply(context, [image].concat(_toConsumableArray(params.map(function (param) {\n return Math.floor(normalizeDecimalNumber(param));\n }))));\n context.restore();\n return canvas;\n }\n var fromCharCode = String.fromCharCode;\n /**\n * Get string from char code in data view.\n * @param {DataView} dataView - The data view for read.\n * @param {number} start - The start index.\n * @param {number} length - The read length.\n * @returns {string} The read result.\n */\n\n function getStringFromCharCode(dataView, start, length) {\n var str = '';\n length += start;\n\n for (var i = start; i < length; i += 1) {\n str += fromCharCode(dataView.getUint8(i));\n }\n\n return str;\n }\n var REGEXP_DATA_URL_HEAD = /^data:.*,/;\n /**\n * Transform Data URL to array buffer.\n * @param {string} dataURL - The Data URL to transform.\n * @returns {ArrayBuffer} The result array buffer.\n */\n\n function dataURLToArrayBuffer(dataURL) {\n var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');\n var binary = atob(base64);\n var arrayBuffer = new ArrayBuffer(binary.length);\n var uint8 = new Uint8Array(arrayBuffer);\n forEach(uint8, function (value, i) {\n uint8[i] = binary.charCodeAt(i);\n });\n return arrayBuffer;\n }\n /**\n * Transform array buffer to Data URL.\n * @param {ArrayBuffer} arrayBuffer - The array buffer to transform.\n * @param {string} mimeType - The mime type of the Data URL.\n * @returns {string} The result Data URL.\n */\n\n function arrayBufferToDataURL(arrayBuffer, mimeType) {\n var chunks = []; // Chunk Typed Array for better performance (#435)\n\n var chunkSize = 8192;\n var uint8 = new Uint8Array(arrayBuffer);\n\n while (uint8.length > 0) {\n // XXX: Babel's `toConsumableArray` helper will throw error in IE or Safari 9\n // eslint-disable-next-line prefer-spread\n chunks.push(fromCharCode.apply(null, toArray(uint8.subarray(0, chunkSize))));\n uint8 = uint8.subarray(chunkSize);\n }\n\n return \"data:\".concat(mimeType, \";base64,\").concat(btoa(chunks.join('')));\n }\n /**\n * Get orientation value from given array buffer.\n * @param {ArrayBuffer} arrayBuffer - The array buffer to read.\n * @returns {number} The read orientation value.\n */\n\n function resetAndGetOrientation(arrayBuffer) {\n var dataView = new DataView(arrayBuffer);\n var orientation; // Ignores range error when the image does not have correct Exif information\n\n try {\n var littleEndian;\n var app1Start;\n var ifdStart; // Only handle JPEG image (start by 0xFFD8)\n\n if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {\n var length = dataView.byteLength;\n var offset = 2;\n\n while (offset + 1 < length) {\n if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {\n app1Start = offset;\n break;\n }\n\n offset += 1;\n }\n }\n\n if (app1Start) {\n var exifIDCode = app1Start + 4;\n var tiffOffset = app1Start + 10;\n\n if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {\n var endianness = dataView.getUint16(tiffOffset);\n littleEndian = endianness === 0x4949;\n\n if (littleEndian || endianness === 0x4D4D\n /* bigEndian */\n ) {\n if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {\n var firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);\n\n if (firstIFDOffset >= 0x00000008) {\n ifdStart = tiffOffset + firstIFDOffset;\n }\n }\n }\n }\n }\n\n if (ifdStart) {\n var _length = dataView.getUint16(ifdStart, littleEndian);\n\n var _offset;\n\n var i;\n\n for (i = 0; i < _length; i += 1) {\n _offset = ifdStart + i * 12 + 2;\n\n if (dataView.getUint16(_offset, littleEndian) === 0x0112\n /* Orientation */\n ) {\n // 8 is the offset of the current tag's value\n _offset += 8; // Get the original orientation value\n\n orientation = dataView.getUint16(_offset, littleEndian); // Override the orientation with its default value\n\n dataView.setUint16(_offset, 1, littleEndian);\n break;\n }\n }\n }\n } catch (error) {\n orientation = 1;\n }\n\n return orientation;\n }\n /**\n * Parse Exif Orientation value.\n * @param {number} orientation - The orientation to parse.\n * @returns {Object} The parsed result.\n */\n\n function parseOrientation(orientation) {\n var rotate = 0;\n var scaleX = 1;\n var scaleY = 1;\n\n switch (orientation) {\n // Flip horizontal\n case 2:\n scaleX = -1;\n break;\n // Rotate left 180°\n\n case 3:\n rotate = -180;\n break;\n // Flip vertical\n\n case 4:\n scaleY = -1;\n break;\n // Flip vertical and rotate right 90°\n\n case 5:\n rotate = 90;\n scaleY = -1;\n break;\n // Rotate right 90°\n\n case 6:\n rotate = 90;\n break;\n // Flip horizontal and rotate right 90°\n\n case 7:\n rotate = 90;\n scaleX = -1;\n break;\n // Rotate left 90°\n\n case 8:\n rotate = -90;\n break;\n }\n\n return {\n rotate: rotate,\n scaleX: scaleX,\n scaleY: scaleY\n };\n }\n\n var render = {\n render: function render() {\n this.initContainer();\n this.initCanvas();\n this.initCropBox();\n this.initialImageData = assign({}, this.imageData);\n this.initialCanvasData = assign({}, this.canvasData);\n this.initialCropBoxData = assign({}, this.cropBoxData);\n this.renderCanvas();\n\n if (this.cropped) {\n this.renderCropBox();\n }\n },\n initContainer: function initContainer() {\n var element = this.element,\n options = this.options,\n container = this.container,\n cropper = this.cropper;\n addClass(cropper, CLASS_HIDDEN);\n removeClass(element, CLASS_HIDDEN);\n var containerData = {\n width: Math.max(container.offsetWidth, Number(options.minContainerWidth) || MIN_CONTAINER_WIDTH),\n height: Math.max(container.offsetHeight, Number(options.minContainerHeight) || MIN_CONTAINER_HEIGHT)\n };\n setStyle(cropper, containerData);\n addClass(element, CLASS_HIDDEN);\n removeClass(cropper, CLASS_HIDDEN);\n this.containerData = containerData;\n },\n // Canvas (image wrapper)\n initCanvas: function initCanvas() {\n var options = this.options,\n containerData = this.containerData,\n imageData = this.imageData;\n var viewMode = options.viewMode;\n var rotated = Math.abs(imageData.rotate) % 180 === 90;\n var naturalWidth = rotated ? imageData.naturalHeight : imageData.naturalWidth;\n var naturalHeight = rotated ? imageData.naturalWidth : imageData.naturalHeight;\n var aspectRatio = naturalWidth / naturalHeight;\n var width = containerData.width,\n height = containerData.height;\n\n if (height * aspectRatio > width) {\n if (viewMode === 3) {\n width = height * aspectRatio;\n } else {\n height = width / aspectRatio;\n }\n } else if (viewMode === 3) {\n height = width / aspectRatio;\n } else {\n width = height * aspectRatio;\n }\n\n var canvasData = {\n aspectRatio: aspectRatio,\n naturalWidth: naturalWidth,\n naturalHeight: naturalHeight,\n width: width,\n height: height,\n left: (containerData.width - width) / 2,\n top: (containerData.height - height) / 2,\n scale: width / naturalWidth\n };\n canvasData.oldLeft = canvasData.left;\n canvasData.oldTop = canvasData.top;\n this.canvasData = canvasData;\n this.limitCanvas(true, true);\n },\n limitCanvas: function limitCanvas() {\n var sizeLimited = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;\n var positionLimited = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;\n var options = this.options,\n containerData = this.containerData,\n canvasData = this.canvasData;\n var viewMode = options.viewMode;\n var containerWidth = containerData.width,\n containerHeight = containerData.height;\n var aspectRatio = canvasData.aspectRatio,\n width = canvasData.width,\n height = canvasData.height;\n\n if (sizeLimited) {\n var minCanvasWidth = Math.max(options.minCanvasWidth, 0) || 0;\n var minCanvasHeight = Math.max(options.minCanvasHeight, 0) || 0;\n var maxCanvasWidth = Math.max(options.maxCanvasWidth, minCanvasWidth) || Infinity;\n var maxCanvasHeight = Math.max(options.maxCanvasHeight, minCanvasHeight) || Infinity;\n\n if (viewMode > 1) {\n minCanvasWidth = Math.max(minCanvasWidth, containerWidth);\n minCanvasHeight = Math.max(minCanvasHeight, containerHeight);\n\n if (viewMode === 3) {\n if (minCanvasHeight * aspectRatio > minCanvasWidth) {\n minCanvasWidth = minCanvasHeight * aspectRatio;\n } else {\n minCanvasHeight = minCanvasWidth / aspectRatio;\n }\n }\n }\n\n var _getAdjustedSizes = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: minCanvasWidth,\n height: minCanvasHeight\n });\n\n minCanvasWidth = _getAdjustedSizes.width;\n minCanvasHeight = _getAdjustedSizes.height;\n\n var _getAdjustedSizes2 = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: maxCanvasWidth,\n height: maxCanvasHeight\n });\n\n maxCanvasWidth = _getAdjustedSizes2.width;\n maxCanvasHeight = _getAdjustedSizes2.height;\n canvasData.minWidth = minCanvasWidth;\n canvasData.minHeight = minCanvasHeight;\n canvasData.maxWidth = maxCanvasWidth;\n canvasData.maxHeight = maxCanvasHeight;\n }\n\n if (positionLimited) {\n var minLeft = -width;\n var minTop = -height;\n var maxLeft = containerWidth;\n var maxTop = containerHeight;\n\n if (viewMode > 1) {\n var newLeft = containerWidth - width;\n var newTop = containerHeight - height;\n minLeft = Math.min(0, newLeft);\n minTop = Math.min(0, newTop);\n maxLeft = Math.max(0, newLeft);\n maxTop = Math.max(0, newTop);\n }\n\n canvasData.minLeft = minLeft;\n canvasData.minTop = minTop;\n canvasData.maxLeft = maxLeft;\n canvasData.maxTop = maxTop;\n }\n },\n renderCanvas: function renderCanvas() {\n var changed = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;\n var transformed = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;\n var imageData = this.imageData,\n canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n\n if (transformed) {\n var _getRotatedSizes = getRotatedSizes({\n width: imageData.naturalWidth * Math.abs(imageData.scaleX || 1),\n height: imageData.naturalHeight * Math.abs(imageData.scaleY || 1),\n degree: imageData.rotate || 0\n }),\n naturalWidth = _getRotatedSizes.width,\n naturalHeight = _getRotatedSizes.height;\n\n var width = canvasData.width * (naturalWidth / canvasData.naturalWidth);\n var height = canvasData.height * (naturalHeight / canvasData.naturalHeight);\n canvasData.left -= (width - canvasData.width) / 2;\n canvasData.top -= (height - canvasData.height) / 2;\n canvasData.width = width;\n canvasData.height = height;\n canvasData.aspectRatio = naturalWidth / naturalHeight;\n canvasData.naturalWidth = naturalWidth;\n canvasData.naturalHeight = naturalHeight;\n this.limitCanvas(true, false);\n }\n\n if (canvasData.width > canvasData.maxWidth || canvasData.width < canvasData.minWidth) {\n canvasData.left = canvasData.oldLeft;\n }\n\n if (canvasData.height > canvasData.maxHeight || canvasData.height < canvasData.minHeight) {\n canvasData.top = canvasData.oldTop;\n }\n\n canvasData.width = Math.min(Math.max(canvasData.width, canvasData.minWidth), canvasData.maxWidth);\n canvasData.height = Math.min(Math.max(canvasData.height, canvasData.minHeight), canvasData.maxHeight);\n canvasData.scale = canvasData.width / canvasData.naturalWidth;\n this.limitCanvas(false, true);\n canvasData.left = Math.min(Math.max(canvasData.left, canvasData.minLeft), canvasData.maxLeft);\n canvasData.top = Math.min(Math.max(canvasData.top, canvasData.minTop), canvasData.maxTop);\n\n if (canvasData.left === canvasData.oldLeft) {\n cropBoxData.left = cropBoxData.oldLeft;\n }\n\n if (canvasData.top === canvasData.oldTop) {\n cropBoxData.top = cropBoxData.oldTop;\n }\n\n canvasData.oldLeft = canvasData.left;\n canvasData.oldTop = canvasData.top;\n setStyle(this.canvas, assign({\n width: canvasData.width,\n height: canvasData.height\n }, getTransforms({\n translateX: canvasData.left,\n translateY: canvasData.top\n })));\n this.renderImage();\n\n if (changed) {\n if (this.cropped) {\n // Reinitialize the crop box when the canvas rotated or scaled.\n if (transformed) {\n this.initCropBox();\n } else {\n this.limitCropBox(true, true);\n }\n\n this.renderCropBox();\n } else {\n this.output();\n }\n }\n },\n renderImage: function renderImage() {\n var imageData = this.imageData,\n canvasData = this.canvasData;\n var width = imageData.naturalWidth * (canvasData.width / canvasData.naturalWidth);\n var height = imageData.naturalHeight * (canvasData.height / canvasData.naturalHeight);\n assign(imageData, {\n width: width,\n height: height,\n left: (canvasData.width - width) / 2,\n top: (canvasData.height - height) / 2\n });\n setStyle(this.image, assign({\n width: imageData.width,\n height: imageData.height\n }, getTransforms(assign({\n translateX: imageData.left,\n translateY: imageData.top\n }, imageData))));\n },\n initCropBox: function initCropBox() {\n var options = this.options,\n canvasData = this.canvasData;\n var aspectRatio = options.aspectRatio || options.initialAspectRatio;\n var width = canvasData.width,\n height = canvasData.height;\n\n if (aspectRatio) {\n if (height * aspectRatio > width) {\n height = width / aspectRatio;\n } else {\n width = height * aspectRatio;\n }\n }\n\n var cropBoxData = {\n width: width,\n height: height\n };\n this.cropBoxData = cropBoxData;\n this.limitCropBox(true, true); // Initialize auto crop area\n\n cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);\n cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);\n var autoCropArea = Number(options.autoCropArea) || 0.8; // The width/height of auto crop area must large than \"minWidth/Height\"\n\n cropBoxData.width = Math.max(cropBoxData.minWidth, cropBoxData.width * autoCropArea);\n cropBoxData.height = Math.max(cropBoxData.minHeight, cropBoxData.height * autoCropArea);\n cropBoxData.left = canvasData.left + (canvasData.width - cropBoxData.width) / 2;\n cropBoxData.top = canvasData.top + (canvasData.height - cropBoxData.height) / 2;\n cropBoxData.oldLeft = cropBoxData.left;\n cropBoxData.oldTop = cropBoxData.top;\n cropBoxData.naturalWidth = cropBoxData.width / canvasData.scale;\n cropBoxData.naturalHeight = cropBoxData.height / canvasData.scale;\n },\n limitCropBox: function limitCropBox() {\n var sizeLimited = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;\n var positionLimited = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;\n var options = this.options,\n canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n var aspectRatio = options.aspectRatio,\n viewMode = options.viewMode;\n var canvasWidth = canvasData.width,\n canvasHeight = canvasData.height,\n canvasLeft = canvasData.left,\n canvasTop = canvasData.top;\n\n if (sizeLimited) {\n var minCropBoxWidth = Math.max(options.minCropBoxWidth, 0) || 0;\n var minCropBoxHeight = Math.max(options.minCropBoxHeight, 0) || 0;\n var maxCropBoxWidth = Math.max(options.maxCropBoxWidth, minCropBoxWidth) || Infinity;\n var maxCropBoxHeight = Math.max(options.maxCropBoxHeight, minCropBoxHeight) || Infinity;\n\n if (viewMode > 0) {\n minCropBoxWidth = Math.min(canvasWidth, minCropBoxWidth);\n minCropBoxHeight = Math.min(canvasHeight, minCropBoxHeight);\n maxCropBoxWidth = Math.min(canvasWidth, maxCropBoxWidth);\n maxCropBoxHeight = Math.min(canvasHeight, maxCropBoxHeight);\n }\n\n if (aspectRatio > 0) {\n var _getAdjustedSizes3 = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: minCropBoxWidth,\n height: minCropBoxHeight\n });\n\n minCropBoxWidth = _getAdjustedSizes3.width;\n minCropBoxHeight = _getAdjustedSizes3.height;\n\n var _getAdjustedSizes4 = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: maxCropBoxWidth,\n height: maxCropBoxHeight\n });\n\n maxCropBoxWidth = _getAdjustedSizes4.width;\n maxCropBoxHeight = _getAdjustedSizes4.height;\n }\n\n cropBoxData.minWidth = minCropBoxWidth;\n cropBoxData.minHeight = minCropBoxHeight;\n cropBoxData.maxWidth = maxCropBoxWidth;\n cropBoxData.maxHeight = maxCropBoxHeight;\n }\n\n if (positionLimited) {\n var minLeft = -Infinity;\n var minTop = -Infinity;\n var maxLeft = Infinity;\n var maxTop = Infinity;\n\n if (viewMode > 0) {\n minLeft = canvasLeft;\n minTop = canvasTop;\n maxLeft = canvasLeft + canvasWidth - cropBoxData.width;\n maxTop = canvasTop + canvasHeight - cropBoxData.height;\n }\n\n cropBoxData.minLeft = minLeft;\n cropBoxData.minTop = minTop;\n cropBoxData.maxLeft = maxLeft;\n cropBoxData.maxTop = maxTop;\n }\n },\n renderCropBox: function renderCropBox() {\n var options = this.options,\n containerData = this.containerData,\n canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n\n if (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {\n cropBoxData.left = cropBoxData.oldLeft;\n }\n\n if (cropBoxData.height > cropBoxData.maxHeight || cropBoxData.height < cropBoxData.minHeight) {\n cropBoxData.top = cropBoxData.oldTop;\n }\n\n cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);\n cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);\n this.limitCropBox(false, true);\n cropBoxData.left = Math.min(Math.max(cropBoxData.left, cropBoxData.minLeft), cropBoxData.maxLeft);\n cropBoxData.top = Math.min(Math.max(cropBoxData.top, cropBoxData.minTop), cropBoxData.maxTop);\n cropBoxData.oldLeft = cropBoxData.left;\n cropBoxData.oldTop = cropBoxData.top;\n cropBoxData.naturalWidth = cropBoxData.width / canvasData.scale;\n cropBoxData.naturalHeight = cropBoxData.height / canvasData.scale;\n\n if (options.movable && options.cropBoxMovable) {\n // Turn to move the canvas when the crop box is not less than the container\n setData(this.face, DATA_ACTION, cropBoxData.width >= containerData.width && cropBoxData.height >= containerData.height ? ACTION_MOVE : ACTION_ALL);\n }\n\n setStyle(this.cropBox, assign({\n width: cropBoxData.width,\n height: cropBoxData.height\n }, getTransforms({\n translateX: cropBoxData.left,\n translateY: cropBoxData.top\n })));\n\n if (!this.disabled) {\n this.output();\n }\n },\n output: function output() {\n this.preview();\n dispatchEvent(this.element, EVENT_CROP, this.getData());\n }\n };\n\n var preview = {\n initPreview: function initPreview() {\n var element = this.element,\n crossOrigin = this.crossOrigin;\n var preview = this.options.preview;\n var url = crossOrigin ? this.crossOriginUrl : this.url;\n var alt = element.alt || 'The image to preview';\n var image = document.createElement('img');\n\n if (crossOrigin) {\n image.crossOrigin = crossOrigin;\n }\n\n image.src = url;\n image.alt = alt;\n this.viewBox.appendChild(image);\n this.viewBoxImage = image;\n\n if (!preview) {\n return;\n }\n\n var previews = preview;\n\n if (typeof preview === 'string') {\n previews = element.ownerDocument.querySelectorAll(preview);\n } else if (preview.querySelector) {\n previews = [preview];\n }\n\n this.previews = previews;\n forEach(previews, function (el) {\n var img = document.createElement('img'); // Save the original size for recover\n\n setData(el, DATA_PREVIEW, {\n width: el.offsetWidth,\n height: el.offsetHeight,\n html: el.innerHTML\n });\n\n if (crossOrigin) {\n img.crossOrigin = crossOrigin;\n }\n\n img.src = url;\n img.alt = alt;\n /**\n * Override img element styles\n * Add `display:block` to avoid margin top issue\n * Add `height:auto` to override `height` attribute on IE8\n * (Occur only when margin-top <= -height)\n */\n\n 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;\"';\n el.innerHTML = '';\n el.appendChild(img);\n });\n },\n resetPreview: function resetPreview() {\n forEach(this.previews, function (element) {\n var data = getData(element, DATA_PREVIEW);\n setStyle(element, {\n width: data.width,\n height: data.height\n });\n element.innerHTML = data.html;\n removeData(element, DATA_PREVIEW);\n });\n },\n preview: function preview() {\n var imageData = this.imageData,\n canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n var cropBoxWidth = cropBoxData.width,\n cropBoxHeight = cropBoxData.height;\n var width = imageData.width,\n height = imageData.height;\n var left = cropBoxData.left - canvasData.left - imageData.left;\n var top = cropBoxData.top - canvasData.top - imageData.top;\n\n if (!this.cropped || this.disabled) {\n return;\n }\n\n setStyle(this.viewBoxImage, assign({\n width: width,\n height: height\n }, getTransforms(assign({\n translateX: -left,\n translateY: -top\n }, imageData))));\n forEach(this.previews, function (element) {\n var data = getData(element, DATA_PREVIEW);\n var originalWidth = data.width;\n var originalHeight = data.height;\n var newWidth = originalWidth;\n var newHeight = originalHeight;\n var ratio = 1;\n\n if (cropBoxWidth) {\n ratio = originalWidth / cropBoxWidth;\n newHeight = cropBoxHeight * ratio;\n }\n\n if (cropBoxHeight && newHeight > originalHeight) {\n ratio = originalHeight / cropBoxHeight;\n newWidth = cropBoxWidth * ratio;\n newHeight = originalHeight;\n }\n\n setStyle(element, {\n width: newWidth,\n height: newHeight\n });\n setStyle(element.getElementsByTagName('img')[0], assign({\n width: width * ratio,\n height: height * ratio\n }, getTransforms(assign({\n translateX: -left * ratio,\n translateY: -top * ratio\n }, imageData))));\n });\n }\n };\n\n var events = {\n bind: function bind() {\n var element = this.element,\n options = this.options,\n cropper = this.cropper;\n\n if (isFunction(options.cropstart)) {\n addListener(element, EVENT_CROP_START, options.cropstart);\n }\n\n if (isFunction(options.cropmove)) {\n addListener(element, EVENT_CROP_MOVE, options.cropmove);\n }\n\n if (isFunction(options.cropend)) {\n addListener(element, EVENT_CROP_END, options.cropend);\n }\n\n if (isFunction(options.crop)) {\n addListener(element, EVENT_CROP, options.crop);\n }\n\n if (isFunction(options.zoom)) {\n addListener(element, EVENT_ZOOM, options.zoom);\n }\n\n addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = this.cropStart.bind(this));\n\n if (options.zoomable && options.zoomOnWheel) {\n addListener(cropper, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {\n passive: false,\n capture: true\n });\n }\n\n if (options.toggleDragModeOnDblclick) {\n addListener(cropper, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));\n }\n\n addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove = this.cropMove.bind(this));\n addListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd = this.cropEnd.bind(this));\n\n if (options.responsive) {\n addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));\n }\n },\n unbind: function unbind() {\n var element = this.element,\n options = this.options,\n cropper = this.cropper;\n\n if (isFunction(options.cropstart)) {\n removeListener(element, EVENT_CROP_START, options.cropstart);\n }\n\n if (isFunction(options.cropmove)) {\n removeListener(element, EVENT_CROP_MOVE, options.cropmove);\n }\n\n if (isFunction(options.cropend)) {\n removeListener(element, EVENT_CROP_END, options.cropend);\n }\n\n if (isFunction(options.crop)) {\n removeListener(element, EVENT_CROP, options.crop);\n }\n\n if (isFunction(options.zoom)) {\n removeListener(element, EVENT_ZOOM, options.zoom);\n }\n\n removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);\n\n if (options.zoomable && options.zoomOnWheel) {\n removeListener(cropper, EVENT_WHEEL, this.onWheel, {\n passive: false,\n capture: true\n });\n }\n\n if (options.toggleDragModeOnDblclick) {\n removeListener(cropper, EVENT_DBLCLICK, this.onDblclick);\n }\n\n removeListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove);\n removeListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd);\n\n if (options.responsive) {\n removeListener(window, EVENT_RESIZE, this.onResize);\n }\n }\n };\n\n var handlers = {\n resize: function resize() {\n var options = this.options,\n container = this.container,\n containerData = this.containerData;\n var minContainerWidth = Number(options.minContainerWidth) || MIN_CONTAINER_WIDTH;\n var minContainerHeight = Number(options.minContainerHeight) || MIN_CONTAINER_HEIGHT;\n\n if (this.disabled || containerData.width <= minContainerWidth || containerData.height <= minContainerHeight) {\n return;\n }\n\n var ratio = container.offsetWidth / containerData.width; // Resize when width changed or height changed\n\n if (ratio !== 1 || container.offsetHeight !== containerData.height) {\n var canvasData;\n var cropBoxData;\n\n if (options.restore) {\n canvasData = this.getCanvasData();\n cropBoxData = this.getCropBoxData();\n }\n\n this.render();\n\n if (options.restore) {\n this.setCanvasData(forEach(canvasData, function (n, i) {\n canvasData[i] = n * ratio;\n }));\n this.setCropBoxData(forEach(cropBoxData, function (n, i) {\n cropBoxData[i] = n * ratio;\n }));\n }\n }\n },\n dblclick: function dblclick() {\n if (this.disabled || this.options.dragMode === DRAG_MODE_NONE) {\n return;\n }\n\n this.setDragMode(hasClass(this.dragBox, CLASS_CROP) ? DRAG_MODE_MOVE : DRAG_MODE_CROP);\n },\n wheel: function wheel(event) {\n var _this = this;\n\n var ratio = Number(this.options.wheelZoomRatio) || 0.1;\n var delta = 1;\n\n if (this.disabled) {\n return;\n }\n\n event.preventDefault(); // Limit wheel speed to prevent zoom too fast (#21)\n\n if (this.wheeling) {\n return;\n }\n\n this.wheeling = true;\n setTimeout(function () {\n _this.wheeling = false;\n }, 50);\n\n if (event.deltaY) {\n delta = event.deltaY > 0 ? 1 : -1;\n } else if (event.wheelDelta) {\n delta = -event.wheelDelta / 120;\n } else if (event.detail) {\n delta = event.detail > 0 ? 1 : -1;\n }\n\n this.zoom(-delta * ratio, event);\n },\n cropStart: function cropStart(event) {\n var buttons = event.buttons,\n button = event.button;\n\n if (this.disabled // Handle mouse event and pointer event and ignore touch event\n || (event.type === 'mousedown' || event.type === 'pointerdown' && event.pointerType === 'mouse') && ( // No primary button (Usually the left button)\n isNumber(buttons) && buttons !== 1 || isNumber(button) && button !== 0 // Open context menu\n || event.ctrlKey)) {\n return;\n }\n\n var options = this.options,\n pointers = this.pointers;\n var action;\n\n if (event.changedTouches) {\n // Handle touch event\n forEach(event.changedTouches, function (touch) {\n pointers[touch.identifier] = getPointer(touch);\n });\n } else {\n // Handle mouse event and pointer event\n pointers[event.pointerId || 0] = getPointer(event);\n }\n\n if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {\n action = ACTION_ZOOM;\n } else {\n action = getData(event.target, DATA_ACTION);\n }\n\n if (!REGEXP_ACTIONS.test(action)) {\n return;\n }\n\n if (dispatchEvent(this.element, EVENT_CROP_START, {\n originalEvent: event,\n action: action\n }) === false) {\n return;\n } // This line is required for preventing page zooming in iOS browsers\n\n\n event.preventDefault();\n this.action = action;\n this.cropping = false;\n\n if (action === ACTION_CROP) {\n this.cropping = true;\n addClass(this.dragBox, CLASS_MODAL);\n }\n },\n cropMove: function cropMove(event) {\n var action = this.action;\n\n if (this.disabled || !action) {\n return;\n }\n\n var pointers = this.pointers;\n event.preventDefault();\n\n if (dispatchEvent(this.element, EVENT_CROP_MOVE, {\n originalEvent: event,\n action: action\n }) === false) {\n return;\n }\n\n if (event.changedTouches) {\n forEach(event.changedTouches, function (touch) {\n // The first parameter should not be undefined (#432)\n assign(pointers[touch.identifier] || {}, getPointer(touch, true));\n });\n } else {\n assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));\n }\n\n this.change(event);\n },\n cropEnd: function cropEnd(event) {\n if (this.disabled) {\n return;\n }\n\n var action = this.action,\n pointers = this.pointers;\n\n if (event.changedTouches) {\n forEach(event.changedTouches, function (touch) {\n delete pointers[touch.identifier];\n });\n } else {\n delete pointers[event.pointerId || 0];\n }\n\n if (!action) {\n return;\n }\n\n event.preventDefault();\n\n if (!Object.keys(pointers).length) {\n this.action = '';\n }\n\n if (this.cropping) {\n this.cropping = false;\n toggleClass(this.dragBox, CLASS_MODAL, this.cropped && this.options.modal);\n }\n\n dispatchEvent(this.element, EVENT_CROP_END, {\n originalEvent: event,\n action: action\n });\n }\n };\n\n var change = {\n change: function change(event) {\n var options = this.options,\n canvasData = this.canvasData,\n containerData = this.containerData,\n cropBoxData = this.cropBoxData,\n pointers = this.pointers;\n var action = this.action;\n var aspectRatio = options.aspectRatio;\n var left = cropBoxData.left,\n top = cropBoxData.top,\n width = cropBoxData.width,\n height = cropBoxData.height;\n var right = left + width;\n var bottom = top + height;\n var minLeft = 0;\n var minTop = 0;\n var maxWidth = containerData.width;\n var maxHeight = containerData.height;\n var renderable = true; // Locking aspect ratio in \"free mode\" by holding shift key\n\n if (!aspectRatio && event.shiftKey) {\n aspectRatio = width && height ? width / height : 1;\n }\n\n if (options.viewMode > 0) {\n minLeft = cropBoxData.minLeft;\n minTop = cropBoxData.minTop;\n maxWidth = minLeft + Math.min(containerData.width, canvasData.width, canvasData.left + canvasData.width);\n maxHeight = minTop + Math.min(containerData.height, canvasData.height, canvasData.top + canvasData.height);\n }\n\n var pointer = pointers[Object.keys(pointers)[0]];\n var range = {\n x: pointer.endX - pointer.startX,\n y: pointer.endY - pointer.startY\n };\n\n var check = function check(side) {\n switch (side) {\n case ACTION_EAST:\n if (right + range.x > maxWidth) {\n range.x = maxWidth - right;\n }\n\n break;\n\n case ACTION_WEST:\n if (left + range.x < minLeft) {\n range.x = minLeft - left;\n }\n\n break;\n\n case ACTION_NORTH:\n if (top + range.y < minTop) {\n range.y = minTop - top;\n }\n\n break;\n\n case ACTION_SOUTH:\n if (bottom + range.y > maxHeight) {\n range.y = maxHeight - bottom;\n }\n\n break;\n }\n };\n\n switch (action) {\n // Move crop box\n case ACTION_ALL:\n left += range.x;\n top += range.y;\n break;\n // Resize crop box\n\n case ACTION_EAST:\n if (range.x >= 0 && (right >= maxWidth || aspectRatio && (top <= minTop || bottom >= maxHeight))) {\n renderable = false;\n break;\n }\n\n check(ACTION_EAST);\n width += range.x;\n\n if (width < 0) {\n action = ACTION_WEST;\n width = -width;\n left -= width;\n }\n\n if (aspectRatio) {\n height = width / aspectRatio;\n top += (cropBoxData.height - height) / 2;\n }\n\n break;\n\n case ACTION_NORTH:\n if (range.y <= 0 && (top <= minTop || aspectRatio && (left <= minLeft || right >= maxWidth))) {\n renderable = false;\n break;\n }\n\n check(ACTION_NORTH);\n height -= range.y;\n top += range.y;\n\n if (height < 0) {\n action = ACTION_SOUTH;\n height = -height;\n top -= height;\n }\n\n if (aspectRatio) {\n width = height * aspectRatio;\n left += (cropBoxData.width - width) / 2;\n }\n\n break;\n\n case ACTION_WEST:\n if (range.x <= 0 && (left <= minLeft || aspectRatio && (top <= minTop || bottom >= maxHeight))) {\n renderable = false;\n break;\n }\n\n check(ACTION_WEST);\n width -= range.x;\n left += range.x;\n\n if (width < 0) {\n action = ACTION_EAST;\n width = -width;\n left -= width;\n }\n\n if (aspectRatio) {\n height = width / aspectRatio;\n top += (cropBoxData.height - height) / 2;\n }\n\n break;\n\n case ACTION_SOUTH:\n if (range.y >= 0 && (bottom >= maxHeight || aspectRatio && (left <= minLeft || right >= maxWidth))) {\n renderable = false;\n break;\n }\n\n check(ACTION_SOUTH);\n height += range.y;\n\n if (height < 0) {\n action = ACTION_NORTH;\n height = -height;\n top -= height;\n }\n\n if (aspectRatio) {\n width = height * aspectRatio;\n left += (cropBoxData.width - width) / 2;\n }\n\n break;\n\n case ACTION_NORTH_EAST:\n if (aspectRatio) {\n if (range.y <= 0 && (top <= minTop || right >= maxWidth)) {\n renderable = false;\n break;\n }\n\n check(ACTION_NORTH);\n height -= range.y;\n top += range.y;\n width = height * aspectRatio;\n } else {\n check(ACTION_NORTH);\n check(ACTION_EAST);\n\n if (range.x >= 0) {\n if (right < maxWidth) {\n width += range.x;\n } else if (range.y <= 0 && top <= minTop) {\n renderable = false;\n }\n } else {\n width += range.x;\n }\n\n if (range.y <= 0) {\n if (top > minTop) {\n height -= range.y;\n top += range.y;\n }\n } else {\n height -= range.y;\n top += range.y;\n }\n }\n\n if (width < 0 && height < 0) {\n action = ACTION_SOUTH_WEST;\n height = -height;\n width = -width;\n top -= height;\n left -= width;\n } else if (width < 0) {\n action = ACTION_NORTH_WEST;\n width = -width;\n left -= width;\n } else if (height < 0) {\n action = ACTION_SOUTH_EAST;\n height = -height;\n top -= height;\n }\n\n break;\n\n case ACTION_NORTH_WEST:\n if (aspectRatio) {\n if (range.y <= 0 && (top <= minTop || left <= minLeft)) {\n renderable = false;\n break;\n }\n\n check(ACTION_NORTH);\n height -= range.y;\n top += range.y;\n width = height * aspectRatio;\n left += cropBoxData.width - width;\n } else {\n check(ACTION_NORTH);\n check(ACTION_WEST);\n\n if (range.x <= 0) {\n if (left > minLeft) {\n width -= range.x;\n left += range.x;\n } else if (range.y <= 0 && top <= minTop) {\n renderable = false;\n }\n } else {\n width -= range.x;\n left += range.x;\n }\n\n if (range.y <= 0) {\n if (top > minTop) {\n height -= range.y;\n top += range.y;\n }\n } else {\n height -= range.y;\n top += range.y;\n }\n }\n\n if (width < 0 && height < 0) {\n action = ACTION_SOUTH_EAST;\n height = -height;\n width = -width;\n top -= height;\n left -= width;\n } else if (width < 0) {\n action = ACTION_NORTH_EAST;\n width = -width;\n left -= width;\n } else if (height < 0) {\n action = ACTION_SOUTH_WEST;\n height = -height;\n top -= height;\n }\n\n break;\n\n case ACTION_SOUTH_WEST:\n if (aspectRatio) {\n if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {\n renderable = false;\n break;\n }\n\n check(ACTION_WEST);\n width -= range.x;\n left += range.x;\n height = width / aspectRatio;\n } else {\n check(ACTION_SOUTH);\n check(ACTION_WEST);\n\n if (range.x <= 0) {\n if (left > minLeft) {\n width -= range.x;\n left += range.x;\n } else if (range.y >= 0 && bottom >= maxHeight) {\n renderable = false;\n }\n } else {\n width -= range.x;\n left += range.x;\n }\n\n if (range.y >= 0) {\n if (bottom < maxHeight) {\n height += range.y;\n }\n } else {\n height += range.y;\n }\n }\n\n if (width < 0 && height < 0) {\n action = ACTION_NORTH_EAST;\n height = -height;\n width = -width;\n top -= height;\n left -= width;\n } else if (width < 0) {\n action = ACTION_SOUTH_EAST;\n width = -width;\n left -= width;\n } else if (height < 0) {\n action = ACTION_NORTH_WEST;\n height = -height;\n top -= height;\n }\n\n break;\n\n case ACTION_SOUTH_EAST:\n if (aspectRatio) {\n if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {\n renderable = false;\n break;\n }\n\n check(ACTION_EAST);\n width += range.x;\n height = width / aspectRatio;\n } else {\n check(ACTION_SOUTH);\n check(ACTION_EAST);\n\n if (range.x >= 0) {\n if (right < maxWidth) {\n width += range.x;\n } else if (range.y >= 0 && bottom >= maxHeight) {\n renderable = false;\n }\n } else {\n width += range.x;\n }\n\n if (range.y >= 0) {\n if (bottom < maxHeight) {\n height += range.y;\n }\n } else {\n height += range.y;\n }\n }\n\n if (width < 0 && height < 0) {\n action = ACTION_NORTH_WEST;\n height = -height;\n width = -width;\n top -= height;\n left -= width;\n } else if (width < 0) {\n action = ACTION_SOUTH_WEST;\n width = -width;\n left -= width;\n } else if (height < 0) {\n action = ACTION_NORTH_EAST;\n height = -height;\n top -= height;\n }\n\n break;\n // Move canvas\n\n case ACTION_MOVE:\n this.move(range.x, range.y);\n renderable = false;\n break;\n // Zoom canvas\n\n case ACTION_ZOOM:\n this.zoom(getMaxZoomRatio(pointers), event);\n renderable = false;\n break;\n // Create crop box\n\n case ACTION_CROP:\n {\n action = '';\n\n if (range.x && range.y) {\n var degreesX = Math.atan(Math.abs(range.x) / Math.abs(range.y)) * 180 / Math.PI;\n\n if (degreesX < 5) {\n if (aspectRatio) {\n action = range.y > 0 ? ACTION_SOUTH : ACTION_NORTH;\n }\n } else if (degreesX > 85) {\n if (aspectRatio) {\n action = range.y > 0 ? ACTION_EAST : ACTION_WEST;\n }\n } else if (range.x > 0) {\n action = range.y > 0 ? ACTION_SOUTH_EAST : ACTION_NORTH_EAST;\n } else {\n action = range.y > 0 ? ACTION_SOUTH_WEST : ACTION_NORTH_WEST;\n }\n } else if (aspectRatio) {\n if (Math.abs(range.x) > 1) {\n action = range.x > 0 ? ACTION_EAST : ACTION_WEST;\n } else if (Math.abs(range.y) > 1) {\n action = range.y > 0 ? ACTION_SOUTH : ACTION_NORTH;\n }\n }\n\n if (!action) {\n renderable = false;\n break;\n }\n\n var offset = getOffset(this.cropper);\n left = pointer.startX - offset.left;\n top = pointer.startY - offset.top;\n width = cropBoxData.minWidth;\n height = cropBoxData.minHeight;\n\n if (range.x < 0) {\n left -= width;\n }\n\n if (range.y < 0) {\n top -= height;\n } // Show the crop box if is hidden\n\n\n if (!this.cropped) {\n removeClass(this.cropBox, CLASS_HIDDEN);\n this.cropped = true;\n\n if (options.viewMode > 0) {\n this.limitCropBox(true, true);\n }\n }\n\n break;\n }\n }\n\n if (renderable) {\n cropBoxData.width = width;\n cropBoxData.height = height;\n cropBoxData.left = left;\n cropBoxData.top = top;\n this.action = action;\n this.renderCropBox();\n } // Override\n\n\n forEach(pointers, function (p) {\n p.startX = p.endX;\n p.startY = p.endY;\n });\n }\n };\n\n var methods = {\n // Show the crop box manually\n crop: function crop() {\n if (this.ready && !this.cropped && !this.disabled) {\n this.cropped = true;\n this.limitCropBox(true, true);\n\n if (this.options.modal) {\n addClass(this.dragBox, CLASS_MODAL);\n }\n\n removeClass(this.cropBox, CLASS_HIDDEN);\n this.setCropBoxData(this.initialCropBoxData);\n }\n\n return this;\n },\n // Reset the image and crop box to their initial states\n reset: function reset() {\n if (this.ready && !this.disabled) {\n this.imageData = assign({}, this.initialImageData);\n this.canvasData = assign({}, this.initialCanvasData);\n this.cropBoxData = assign({}, this.initialCropBoxData);\n this.renderCanvas();\n\n if (this.cropped) {\n this.renderCropBox();\n }\n }\n\n return this;\n },\n // Clear the crop box\n clear: function clear() {\n if (this.cropped && !this.disabled) {\n assign(this.cropBoxData, {\n left: 0,\n top: 0,\n width: 0,\n height: 0\n });\n this.cropped = false;\n this.renderCropBox();\n this.limitCanvas(true, true); // Render canvas after crop box rendered\n\n this.renderCanvas();\n removeClass(this.dragBox, CLASS_MODAL);\n addClass(this.cropBox, CLASS_HIDDEN);\n }\n\n return this;\n },\n\n /**\n * Replace the image's src and rebuild the cropper\n * @param {string} url - The new URL.\n * @param {boolean} [hasSameSize] - Indicate if the new image has the same size as the old one.\n * @returns {Cropper} this\n */\n replace: function replace(url) {\n var hasSameSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;\n\n if (!this.disabled && url) {\n if (this.isImg) {\n this.element.src = url;\n }\n\n if (hasSameSize) {\n this.url = url;\n this.image.src = url;\n\n if (this.ready) {\n this.viewBoxImage.src = url;\n forEach(this.previews, function (element) {\n element.getElementsByTagName('img')[0].src = url;\n });\n }\n } else {\n if (this.isImg) {\n this.replaced = true;\n }\n\n this.options.data = null;\n this.uncreate();\n this.load(url);\n }\n }\n\n return this;\n },\n // Enable (unfreeze) the cropper\n enable: function enable() {\n if (this.ready && this.disabled) {\n this.disabled = false;\n removeClass(this.cropper, CLASS_DISABLED);\n }\n\n return this;\n },\n // Disable (freeze) the cropper\n disable: function disable() {\n if (this.ready && !this.disabled) {\n this.disabled = true;\n addClass(this.cropper, CLASS_DISABLED);\n }\n\n return this;\n },\n\n /**\n * Destroy the cropper and remove the instance from the image\n * @returns {Cropper} this\n */\n destroy: function destroy() {\n var element = this.element;\n\n if (!element[NAMESPACE]) {\n return this;\n }\n\n element[NAMESPACE] = undefined;\n\n if (this.isImg && this.replaced) {\n element.src = this.originalUrl;\n }\n\n this.uncreate();\n return this;\n },\n\n /**\n * Move the canvas with relative offsets\n * @param {number} offsetX - The relative offset distance on the x-axis.\n * @param {number} [offsetY=offsetX] - The relative offset distance on the y-axis.\n * @returns {Cropper} this\n */\n move: function move(offsetX) {\n var offsetY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : offsetX;\n var _this$canvasData = this.canvasData,\n left = _this$canvasData.left,\n top = _this$canvasData.top;\n return this.moveTo(isUndefined(offsetX) ? offsetX : left + Number(offsetX), isUndefined(offsetY) ? offsetY : top + Number(offsetY));\n },\n\n /**\n * Move the canvas to an absolute point\n * @param {number} x - The x-axis coordinate.\n * @param {number} [y=x] - The y-axis coordinate.\n * @returns {Cropper} this\n */\n moveTo: function moveTo(x) {\n var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;\n var canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n var changed = false;\n x = Number(x);\n y = Number(y);\n\n if (this.ready && !this.disabled && this.options.movable) {\n if (isNumber(x)) {\n cropBoxData.left -= canvasData.left - x;\n canvasData.left = x;\n changed = true;\n }\n\n if (isNumber(y)) {\n cropBoxData.top -= canvasData.top - y;\n canvasData.top = y;\n changed = true;\n }\n\n if (changed) {\n this.renderCanvas(true);\n }\n }\n\n return this;\n },\n\n /**\n * Zoom the canvas with a relative scale\n * @param {number} scale - The target scale.\n * @param {Event} _originalEvent - The original event if any.\n * @returns {Cropper} this\n */\n zoom: function zoom(scale) {\n var _originalEvent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;\n\n var canvasData = this.canvasData;\n scale = Number(scale);\n\n if (scale < 0) {\n scale = 1 / (1 - scale);\n } else {\n scale = 1 + scale;\n }\n\n return this.zoomTo(canvasData.width * scale / canvasData.naturalWidth, null, _originalEvent);\n },\n\n /**\n * Zoom the canvas to an absolute scale\n * @param {number} scale - The target scale.\n * @param {Object} [center=null] - The center point coordinate.\n * @param {Event} _originalEvent - The original event object if any.\n * @returns {Cropper} this\n */\n zoomTo: function zoomTo(scale) {\n var center = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;\n\n var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;\n\n var options = this.options,\n canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n var canvasWidth = canvasData.width,\n canvasHeight = canvasData.height;\n var cropBoxWidth = cropBoxData.width,\n cropBoxHeight = cropBoxData.height;\n scale = Number(scale);\n\n if (scale >= 0 && this.ready && !this.disabled && options.zoomable) {\n var newCanvasWidth = canvasData.naturalWidth * scale;\n var newCanvasHeight = canvasData.naturalHeight * scale;\n\n if (options.viewMode > 1 && (newCanvasWidth < canvasData.minWidth || newCanvasWidth > canvasData.maxWidth || newCanvasHeight < canvasData.minHeight || newCanvasHeight < canvasData.minHeight)) {\n return this;\n }\n\n var offsetCanvasWidth = newCanvasWidth - canvasWidth;\n var offsetCanvasHeight = newCanvasHeight - canvasHeight;\n var newCropBoxWidth = cropBoxData.naturalWidth * scale;\n var newCropBoxHeight = cropBoxData.naturalHeight * scale;\n var offsetCropBoxWidth = newCropBoxWidth - cropBoxWidth;\n var offsetCropBoxHeight = newCropBoxHeight - cropBoxHeight;\n\n if (dispatchEvent(this.element, EVENT_ZOOM, {\n scale: scale,\n oldScale: canvasData.scale,\n originalEvent: _originalEvent\n }) === false) {\n return this;\n }\n\n if (_originalEvent) {\n var pointers = this.pointers;\n var offset = getOffset(this.cropper);\n center = pointers && Object.keys(pointers).length ? getPointersCenter(pointers) : {\n pageX: _originalEvent.pageX,\n pageY: _originalEvent.pageY\n }; // Zoom from the triggering point of the event\n\n canvasData.left -= offsetCanvasWidth * ((center.pageX - offset.left - canvasData.left) / canvasWidth);\n canvasData.top -= offsetCanvasHeight * ((center.pageY - offset.top - canvasData.top) / canvasHeight);\n cropBoxData.left -= offsetCropBoxWidth * ((center.pageX - offset.left - cropBoxData.left) / cropBoxWidth);\n cropBoxData.top -= offsetCropBoxHeight * ((center.pageY - offset.top - cropBoxData.top) / cropBoxHeight);\n } else if (isPlainObject(center) && isNumber(center.x) && isNumber(center.y)) {\n // Zoom from the given pointer\n canvasData.left -= offsetCanvasWidth * ((center.x - canvasData.left) / canvasWidth);\n canvasData.top -= offsetCanvasHeight * ((center.y - canvasData.top) / canvasHeight);\n cropBoxData.left -= offsetCropBoxWidth * ((center.x - cropBoxData.left) / cropBoxWidth);\n cropBoxData.top -= offsetCropBoxHeight * ((center.y - cropBoxData.top) / cropBoxHeight);\n } else {\n // Zoom from the center of the canvas\n canvasData.left -= offsetCanvasWidth / 2;\n canvasData.top -= offsetCanvasHeight / 2;\n cropBoxData.left -= offsetCropBoxWidth / 2;\n cropBoxData.top -= offsetCropBoxHeight / 2;\n }\n\n canvasData.width = newCanvasWidth;\n canvasData.height = newCanvasHeight;\n cropBoxData.width = newCropBoxWidth;\n cropBoxData.height = newCropBoxHeight;\n this.renderCanvas(true);\n }\n\n return this;\n },\n\n /**\n * Rotate the canvas with a relative degree\n * @param {number} degree - The rotate degree.\n * @returns {Cropper} this\n */\n rotate: function rotate(degree) {\n return this.rotateTo((this.imageData.rotate || 0) + Number(degree));\n },\n\n /**\n * Rotate the canvas to an absolute degree\n * @param {number} degree - The rotate degree.\n * @returns {Cropper} this\n */\n rotateTo: function rotateTo(degree) {\n degree = Number(degree);\n\n if (isNumber(degree) && this.ready && !this.disabled && this.options.rotatable) {\n this.imageData.rotate = degree % 360;\n this.renderCanvas(true, true);\n }\n\n return this;\n },\n\n /**\n * Scale the image on the x-axis.\n * @param {number} scaleX - The scale ratio on the x-axis.\n * @returns {Cropper} this\n */\n scaleX: function scaleX(_scaleX) {\n var scaleY = this.imageData.scaleY;\n return this.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);\n },\n\n /**\n * Scale the image on the y-axis.\n * @param {number} scaleY - The scale ratio on the y-axis.\n * @returns {Cropper} this\n */\n scaleY: function scaleY(_scaleY) {\n var scaleX = this.imageData.scaleX;\n return this.scale(isNumber(scaleX) ? scaleX : 1, _scaleY);\n },\n\n /**\n * Scale the image\n * @param {number} scaleX - The scale ratio on the x-axis.\n * @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.\n * @returns {Cropper} this\n */\n scale: function scale(scaleX) {\n var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;\n var imageData = this.imageData;\n var transformed = false;\n scaleX = Number(scaleX);\n scaleY = Number(scaleY);\n\n if (this.ready && !this.disabled && this.options.scalable) {\n if (isNumber(scaleX)) {\n imageData.scaleX = scaleX;\n transformed = true;\n }\n\n if (isNumber(scaleY)) {\n imageData.scaleY = scaleY;\n transformed = true;\n }\n\n if (transformed) {\n this.renderCanvas(true, true);\n }\n }\n\n return this;\n },\n\n /**\n * Get the cropped area position and size data (base on the original image)\n * @param {boolean} [rounded=false] - Indicate if round the data values or not.\n * @returns {Object} The result cropped data.\n */\n getData: function getData() {\n var rounded = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;\n var options = this.options,\n imageData = this.imageData,\n canvasData = this.canvasData,\n cropBoxData = this.cropBoxData;\n var data;\n\n if (this.ready && this.cropped) {\n data = {\n x: cropBoxData.left - canvasData.left,\n y: cropBoxData.top - canvasData.top,\n width: cropBoxData.width,\n height: cropBoxData.height\n };\n var ratio = imageData.width / imageData.naturalWidth;\n forEach(data, function (n, i) {\n data[i] = n / ratio;\n });\n\n if (rounded) {\n // In case rounding off leads to extra 1px in right or bottom border\n // we should round the top-left corner and the dimension (#343).\n var bottom = Math.round(data.y + data.height);\n var right = Math.round(data.x + data.width);\n data.x = Math.round(data.x);\n data.y = Math.round(data.y);\n data.width = right - data.x;\n data.height = bottom - data.y;\n }\n } else {\n data = {\n x: 0,\n y: 0,\n width: 0,\n height: 0\n };\n }\n\n if (options.rotatable) {\n data.rotate = imageData.rotate || 0;\n }\n\n if (options.scalable) {\n data.scaleX = imageData.scaleX || 1;\n data.scaleY = imageData.scaleY || 1;\n }\n\n return data;\n },\n\n /**\n * Set the cropped area position and size with new data\n * @param {Object} data - The new data.\n * @returns {Cropper} this\n */\n setData: function setData(data) {\n var options = this.options,\n imageData = this.imageData,\n canvasData = this.canvasData;\n var cropBoxData = {};\n\n if (this.ready && !this.disabled && isPlainObject(data)) {\n var transformed = false;\n\n if (options.rotatable) {\n if (isNumber(data.rotate) && data.rotate !== imageData.rotate) {\n imageData.rotate = data.rotate;\n transformed = true;\n }\n }\n\n if (options.scalable) {\n if (isNumber(data.scaleX) && data.scaleX !== imageData.scaleX) {\n imageData.scaleX = data.scaleX;\n transformed = true;\n }\n\n if (isNumber(data.scaleY) && data.scaleY !== imageData.scaleY) {\n imageData.scaleY = data.scaleY;\n transformed = true;\n }\n }\n\n if (transformed) {\n this.renderCanvas(true, true);\n }\n\n var ratio = imageData.width / imageData.naturalWidth;\n\n if (isNumber(data.x)) {\n cropBoxData.left = data.x * ratio + canvasData.left;\n }\n\n if (isNumber(data.y)) {\n cropBoxData.top = data.y * ratio + canvasData.top;\n }\n\n if (isNumber(data.width)) {\n cropBoxData.width = data.width * ratio;\n }\n\n if (isNumber(data.height)) {\n cropBoxData.height = data.height * ratio;\n }\n\n this.setCropBoxData(cropBoxData);\n }\n\n return this;\n },\n\n /**\n * Get the container size data.\n * @returns {Object} The result container data.\n */\n getContainerData: function getContainerData() {\n return this.ready ? assign({}, this.containerData) : {};\n },\n\n /**\n * Get the image position and size data.\n * @returns {Object} The result image data.\n */\n getImageData: function getImageData() {\n return this.sized ? assign({}, this.imageData) : {};\n },\n\n /**\n * Get the canvas position and size data.\n * @returns {Object} The result canvas data.\n */\n getCanvasData: function getCanvasData() {\n var canvasData = this.canvasData;\n var data = {};\n\n if (this.ready) {\n forEach(EXPORTED_DATA_KEY, function (n) {\n data[n] = canvasData[n];\n });\n }\n\n return data;\n },\n\n /**\n * Set the canvas position and size with new data.\n * @param {Object} data - The new canvas data.\n * @returns {Cropper} this\n */\n setCanvasData: function setCanvasData(data) {\n var canvasData = this.canvasData;\n var aspectRatio = canvasData.aspectRatio;\n\n if (this.ready && !this.disabled && isPlainObject(data)) {\n if (isNumber(data.left)) {\n canvasData.left = data.left;\n }\n\n if (isNumber(data.top)) {\n canvasData.top = data.top;\n }\n\n if (isNumber(data.width)) {\n canvasData.width = data.width;\n canvasData.height = data.width / aspectRatio;\n } else if (isNumber(data.height)) {\n canvasData.height = data.height;\n canvasData.width = data.height * aspectRatio;\n }\n\n this.renderCanvas(true);\n }\n\n return this;\n },\n\n /**\n * Get the crop box position and size data.\n * @returns {Object} The result crop box data.\n */\n getCropBoxData: function getCropBoxData() {\n var cropBoxData = this.cropBoxData;\n var data = {};\n\n if (this.ready && this.cropped) {\n forEach(EXPORTED_DATA_KEY, function (n) {\n data[n] = cropBoxData[n];\n });\n }\n\n return data;\n },\n\n /**\n * Set the crop box position and size with new data.\n * @param {Object} data - The new crop box data.\n * @returns {Cropper} this\n */\n setCropBoxData: function setCropBoxData(data) {\n var cropBoxData = this.cropBoxData;\n var aspectRatio = this.options.aspectRatio;\n var widthChanged;\n var heightChanged;\n\n if (this.ready && this.cropped && !this.disabled && isPlainObject(data)) {\n if (isNumber(data.left)) {\n cropBoxData.left = data.left;\n }\n\n if (isNumber(data.top)) {\n cropBoxData.top = data.top;\n }\n\n if (isNumber(data.width) && data.width !== cropBoxData.width) {\n widthChanged = true;\n cropBoxData.width = data.width;\n }\n\n if (isNumber(data.height) && data.height !== cropBoxData.height) {\n heightChanged = true;\n cropBoxData.height = data.height;\n }\n\n if (aspectRatio) {\n if (widthChanged) {\n cropBoxData.height = cropBoxData.width / aspectRatio;\n } else if (heightChanged) {\n cropBoxData.width = cropBoxData.height * aspectRatio;\n }\n }\n\n this.renderCropBox();\n }\n\n return this;\n },\n\n /**\n * Get a canvas drawn the cropped image.\n * @param {Object} [options={}] - The config options.\n * @returns {HTMLCanvasElement} - The result canvas.\n */\n getCroppedCanvas: function getCroppedCanvas() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n if (!this.ready || !window.HTMLCanvasElement) {\n return null;\n }\n\n var canvasData = this.canvasData;\n var source = getSourceCanvas(this.image, this.imageData, canvasData, options); // Returns the source canvas if it is not cropped.\n\n if (!this.cropped) {\n return source;\n }\n\n var _this$getData = this.getData(),\n initialX = _this$getData.x,\n initialY = _this$getData.y,\n initialWidth = _this$getData.width,\n initialHeight = _this$getData.height;\n\n var ratio = source.width / Math.floor(canvasData.naturalWidth);\n\n if (ratio !== 1) {\n initialX *= ratio;\n initialY *= ratio;\n initialWidth *= ratio;\n initialHeight *= ratio;\n }\n\n var aspectRatio = initialWidth / initialHeight;\n var maxSizes = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: options.maxWidth || Infinity,\n height: options.maxHeight || Infinity\n });\n var minSizes = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: options.minWidth || 0,\n height: options.minHeight || 0\n }, 'cover');\n\n var _getAdjustedSizes = getAdjustedSizes({\n aspectRatio: aspectRatio,\n width: options.width || (ratio !== 1 ? source.width : initialWidth),\n height: options.height || (ratio !== 1 ? source.height : initialHeight)\n }),\n width = _getAdjustedSizes.width,\n height = _getAdjustedSizes.height;\n\n width = Math.min(maxSizes.width, Math.max(minSizes.width, width));\n height = Math.min(maxSizes.height, Math.max(minSizes.height, height));\n var canvas = document.createElement('canvas');\n var context = canvas.getContext('2d');\n canvas.width = normalizeDecimalNumber(width);\n canvas.height = normalizeDecimalNumber(height);\n context.fillStyle = options.fillColor || 'transparent';\n context.fillRect(0, 0, width, height);\n var _options$imageSmoothi = options.imageSmoothingEnabled,\n imageSmoothingEnabled = _options$imageSmoothi === void 0 ? true : _options$imageSmoothi,\n imageSmoothingQuality = options.imageSmoothingQuality;\n context.imageSmoothingEnabled = imageSmoothingEnabled;\n\n if (imageSmoothingQuality) {\n context.imageSmoothingQuality = imageSmoothingQuality;\n } // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage\n\n\n var sourceWidth = source.width;\n var sourceHeight = source.height; // Source canvas parameters\n\n var srcX = initialX;\n var srcY = initialY;\n var srcWidth;\n var srcHeight; // Destination canvas parameters\n\n var dstX;\n var dstY;\n var dstWidth;\n var dstHeight;\n\n if (srcX <= -initialWidth || srcX > sourceWidth) {\n srcX = 0;\n srcWidth = 0;\n dstX = 0;\n dstWidth = 0;\n } else if (srcX <= 0) {\n dstX = -srcX;\n srcX = 0;\n srcWidth = Math.min(sourceWidth, initialWidth + srcX);\n dstWidth = srcWidth;\n } else if (srcX <= sourceWidth) {\n dstX = 0;\n srcWidth = Math.min(initialWidth, sourceWidth - srcX);\n dstWidth = srcWidth;\n }\n\n if (srcWidth <= 0 || srcY <= -initialHeight || srcY > sourceHeight) {\n srcY = 0;\n srcHeight = 0;\n dstY = 0;\n dstHeight = 0;\n } else if (srcY <= 0) {\n dstY = -srcY;\n srcY = 0;\n srcHeight = Math.min(sourceHeight, initialHeight + srcY);\n dstHeight = srcHeight;\n } else if (srcY <= sourceHeight) {\n dstY = 0;\n srcHeight = Math.min(initialHeight, sourceHeight - srcY);\n dstHeight = srcHeight;\n }\n\n var params = [srcX, srcY, srcWidth, srcHeight]; // Avoid \"IndexSizeError\"\n\n if (dstWidth > 0 && dstHeight > 0) {\n var scale = width / initialWidth;\n params.push(dstX * scale, dstY * scale, dstWidth * scale, dstHeight * scale);\n } // All the numerical parameters should be integer for `drawImage`\n // https://github.com/fengyuanchen/cropper/issues/476\n\n\n context.drawImage.apply(context, [source].concat(_toConsumableArray(params.map(function (param) {\n return Math.floor(normalizeDecimalNumber(param));\n }))));\n return canvas;\n },\n\n /**\n * Change the aspect ratio of the crop box.\n * @param {number} aspectRatio - The new aspect ratio.\n * @returns {Cropper} this\n */\n setAspectRatio: function setAspectRatio(aspectRatio) {\n var options = this.options;\n\n if (!this.disabled && !isUndefined(aspectRatio)) {\n // 0 -> NaN\n options.aspectRatio = Math.max(0, aspectRatio) || NaN;\n\n if (this.ready) {\n this.initCropBox();\n\n if (this.cropped) {\n this.renderCropBox();\n }\n }\n }\n\n return this;\n },\n\n /**\n * Change the drag mode.\n * @param {string} mode - The new drag mode.\n * @returns {Cropper} this\n */\n setDragMode: function setDragMode(mode) {\n var options = this.options,\n dragBox = this.dragBox,\n face = this.face;\n\n if (this.ready && !this.disabled) {\n var croppable = mode === DRAG_MODE_CROP;\n var movable = options.movable && mode === DRAG_MODE_MOVE;\n mode = croppable || movable ? mode : DRAG_MODE_NONE;\n options.dragMode = mode;\n setData(dragBox, DATA_ACTION, mode);\n toggleClass(dragBox, CLASS_CROP, croppable);\n toggleClass(dragBox, CLASS_MOVE, movable);\n\n if (!options.cropBoxMovable) {\n // Sync drag mode to crop box when it is not movable\n setData(face, DATA_ACTION, mode);\n toggleClass(face, CLASS_CROP, croppable);\n toggleClass(face, CLASS_MOVE, movable);\n }\n }\n\n return this;\n }\n };\n\n var AnotherCropper = WINDOW.Cropper;\n\n var Cropper =\n /*#__PURE__*/\n function () {\n /**\n * Create a new Cropper.\n * @param {Element} element - The target element for cropping.\n * @param {Object} [options={}] - The configuration options.\n */\n function Cropper(element) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n _classCallCheck(this, Cropper);\n\n if (!element || !REGEXP_TAG_NAME.test(element.tagName)) {\n throw new Error('The first argument is required and must be an ' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '
' + '