' + '
';
+
+ /**
+ * Check if the given value is not a number.
+ */
+ var isNaN = Number.isNaN || WINDOW.isNaN;
+
+ /**
+ * Check if the given value is a number.
+ * @param {*} value - The value to check.
+ * @returns {boolean} Returns `true` if the given value is a number, else `false`.
+ */
+ function isNumber(value) {
+ return typeof value === 'number' && !isNaN(value);
+ }
+
+ /**
+ * Check if the given value is a positive number.
+ * @param {*} value - The value to check.
+ * @returns {boolean} Returns `true` if the given value is a positive number, else `false`.
+ */
+ var isPositiveNumber = function isPositiveNumber(value) {
+ return value > 0 && value < Infinity;
+ };
+
+ /**
+ * Check if the given value is undefined.
+ * @param {*} value - The value to check.
+ * @returns {boolean} Returns `true` if the given value is undefined, else `false`.
+ */
+ function isUndefined(value) {
+ return typeof value === 'undefined';
+ }
+
+ /**
+ * Check if the given value is an object.
+ * @param {*} value - The value to check.
+ * @returns {boolean} Returns `true` if the given value is an object, else `false`.
+ */
+ function isObject(value) {
+ return _typeof(value) === 'object' && value !== null;
+ }
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+ /**
+ * Check if the given value is a plain object.
+ * @param {*} value - The value to check.
+ * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.
+ */
+ function isPlainObject(value) {
+ if (!isObject(value)) {
+ return false;
+ }
+ try {
+ var _constructor = value.constructor;
+ var prototype = _constructor.prototype;
+ return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
+ } catch (error) {
+ return false;
+ }
+ }
+
+ /**
+ * Check if the given value is a function.
+ * @param {*} value - The value to check.
+ * @returns {boolean} Returns `true` if the given value is a function, else `false`.
+ */
+ function isFunction(value) {
+ return typeof value === 'function';
+ }
+ var slice = Array.prototype.slice;
+
+ /**
+ * Convert array-like or iterable object to an array.
+ * @param {*} value - The value to convert.
+ * @returns {Array} Returns a new array.
+ */
+ function toArray(value) {
+ return Array.from ? Array.from(value) : slice.call(value);
+ }
+
+ /**
+ * Iterate the given data.
+ * @param {*} data - The data to iterate.
+ * @param {Function} callback - The process function for each element.
+ * @returns {*} The original data.
+ */
+ function forEach(data, callback) {
+ if (data && isFunction(callback)) {
+ if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
+ toArray(data).forEach(function (value, key) {
+ callback.call(data, value, key, data);
+ });
+ } else if (isObject(data)) {
+ Object.keys(data).forEach(function (key) {
+ callback.call(data, data[key], key, data);
+ });
+ }
+ }
+ return data;
+ }
+
+ /**
+ * Extend the given object.
+ * @param {*} target - The target object to extend.
+ * @param {*} args - The rest objects for merging to the target object.
+ * @returns {Object} The extended object.
+ */
+ var assign = Object.assign || function assign(target) {
+ for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ args[_key - 1] = arguments[_key];
+ }
+ if (isObject(target) && args.length > 0) {
+ args.forEach(function (arg) {
+ if (isObject(arg)) {
+ Object.keys(arg).forEach(function (key) {
+ target[key] = arg[key];
+ });
+ }
+ });
+ }
+ return target;
+ };
+ var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/;
+
+ /**
+ * Normalize decimal number.
+ * Check out {@link https://0.30000000000000004.com/}
+ * @param {number} value - The value to normalize.
+ * @param {number} [times=100000000000] - The times for normalizing.
+ * @returns {number} Returns the normalized number.
+ */
+ function normalizeDecimalNumber(value) {
+ var times = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 100000000000;
+ return REGEXP_DECIMALS.test(value) ? Math.round(value * times) / times : value;
+ }
+ var REGEXP_SUFFIX = /^width|height|left|top|marginLeft|marginTop$/;
+
+ /**
+ * Apply styles to the given element.
+ * @param {Element} element - The target element.
+ * @param {Object} styles - The styles for applying.
+ */
+ function setStyle(element, styles) {
+ var style = element.style;
+ forEach(styles, function (value, property) {
+ if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
+ value = "".concat(value, "px");
+ }
+ style[property] = value;
+ });
+ }
+
+ /**
+ * Check if the given element has a special class.
+ * @param {Element} element - The element to check.
+ * @param {string} value - The class to search.
+ * @returns {boolean} Returns `true` if the special class was found.
+ */
+ function hasClass(element, value) {
+ return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;
+ }
+
+ /**
+ * Add classes to the given element.
+ * @param {Element} element - The target element.
+ * @param {string} value - The classes to be added.
+ */
+ function addClass(element, value) {
+ if (!value) {
+ return;
+ }
+ if (isNumber(element.length)) {
+ forEach(element, function (elem) {
+ addClass(elem, value);
+ });
+ return;
+ }
+ if (element.classList) {
+ element.classList.add(value);
+ return;
+ }
+ var className = element.className.trim();
+ if (!className) {
+ element.className = value;
+ } else if (className.indexOf(value) < 0) {
+ element.className = "".concat(className, " ").concat(value);
+ }
+ }
+
+ /**
+ * Remove classes from the given element.
+ * @param {Element} element - The target element.
+ * @param {string} value - The classes to be removed.
+ */
+ function removeClass(element, value) {
+ if (!value) {
+ return;
+ }
+ if (isNumber(element.length)) {
+ forEach(element, function (elem) {
+ removeClass(elem, value);
+ });
+ return;
+ }
+ if (element.classList) {
+ element.classList.remove(value);
+ return;
+ }
+ if (element.className.indexOf(value) >= 0) {
+ element.className = element.className.replace(value, '');
+ }
+ }
+
+ /**
+ * Add or remove classes from the given element.
+ * @param {Element} element - The target element.
+ * @param {string} value - The classes to be toggled.
+ * @param {boolean} added - Add only.
+ */
+ function toggleClass(element, value, added) {
+ if (!value) {
+ return;
+ }
+ if (isNumber(element.length)) {
+ forEach(element, function (elem) {
+ toggleClass(elem, value, added);
+ });
+ return;
+ }
+
+ // IE10-11 doesn't support the second parameter of `classList.toggle`
+ if (added) {
+ addClass(element, value);
+ } else {
+ removeClass(element, value);
+ }
+ }
+ var REGEXP_CAMEL_CASE = /([a-z\d])([A-Z])/g;
+
+ /**
+ * Transform the given string from camelCase to kebab-case
+ * @param {string} value - The value to transform.
+ * @returns {string} The transformed value.
+ */
+ function toParamCase(value) {
+ return value.replace(REGEXP_CAMEL_CASE, '$1-$2').toLowerCase();
+ }
+
+ /**
+ * Get data from the given element.
+ * @param {Element} element - The target element.
+ * @param {string} name - The data key to get.
+ * @returns {string} The data value.
+ */
+ function getData(element, name) {
+ if (isObject(element[name])) {
+ return element[name];
+ }
+ if (element.dataset) {
+ return element.dataset[name];
+ }
+ return element.getAttribute("data-".concat(toParamCase(name)));
+ }
+
+ /**
+ * Set data to the given element.
+ * @param {Element} element - The target element.
+ * @param {string} name - The data key to set.
+ * @param {string} data - The data value.
+ */
+ function setData(element, name, data) {
+ if (isObject(data)) {
+ element[name] = data;
+ } else if (element.dataset) {
+ element.dataset[name] = data;
+ } else {
+ element.setAttribute("data-".concat(toParamCase(name)), data);
+ }
+ }
+
+ /**
+ * Remove data from the given element.
+ * @param {Element} element - The target element.
+ * @param {string} name - The data key to remove.
+ */
+ function removeData(element, name) {
+ if (isObject(element[name])) {
+ try {
+ delete element[name];
+ } catch (error) {
+ element[name] = undefined;
+ }
+ } else if (element.dataset) {
+ // #128 Safari not allows to delete dataset property
+ try {
+ delete element.dataset[name];
+ } catch (error) {
+ element.dataset[name] = undefined;
+ }
+ } else {
+ element.removeAttribute("data-".concat(toParamCase(name)));
+ }
+ }
+ var REGEXP_SPACES = /\s\s*/;
+ var onceSupported = function () {
+ var supported = false;
+ if (IS_BROWSER) {
+ var once = false;
+ var listener = function listener() {};
+ var options = Object.defineProperty({}, 'once', {
+ get: function get() {
+ supported = true;
+ return once;
+ },
+ /**
+ * This setter can fix a `TypeError` in strict mode
+ * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}
+ * @param {boolean} value - The value to set
+ */
+ set: function set(value) {
+ once = value;
+ }
+ });
+ WINDOW.addEventListener('test', listener, options);
+ WINDOW.removeEventListener('test', listener, options);
+ }
+ return supported;
+ }();
+
+ /**
+ * Remove event listener from the target element.
+ * @param {Element} element - The event target.
+ * @param {string} type - The event type(s).
+ * @param {Function} listener - The event listener.
+ * @param {Object} options - The event options.
+ */
+ function removeListener(element, type, listener) {
+ var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+ var handler = listener;
+ type.trim().split(REGEXP_SPACES).forEach(function (event) {
+ if (!onceSupported) {
+ var listeners = element.listeners;
+ if (listeners && listeners[event] && listeners[event][listener]) {
+ handler = listeners[event][listener];
+ delete listeners[event][listener];
+ if (Object.keys(listeners[event]).length === 0) {
+ delete listeners[event];
+ }
+ if (Object.keys(listeners).length === 0) {
+ delete element.listeners;
+ }
+ }
+ }
+ element.removeEventListener(event, handler, options);
+ });
+ }
+
+ /**
+ * Add event listener to the target element.
+ * @param {Element} element - The event target.
+ * @param {string} type - The event type(s).
+ * @param {Function} listener - The event listener.
+ * @param {Object} options - The event options.
+ */
+ function addListener(element, type, listener) {
+ var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+ var _handler = listener;
+ type.trim().split(REGEXP_SPACES).forEach(function (event) {
+ if (options.once && !onceSupported) {
+ var _element$listeners = element.listeners,
+ listeners = _element$listeners === void 0 ? {} : _element$listeners;
+ _handler = function handler() {
+ delete listeners[event][listener];
+ element.removeEventListener(event, _handler, options);
+ for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+ listener.apply(element, args);
+ };
+ if (!listeners[event]) {
+ listeners[event] = {};
+ }
+ if (listeners[event][listener]) {
+ element.removeEventListener(event, listeners[event][listener], options);
+ }
+ listeners[event][listener] = _handler;
+ element.listeners = listeners;
+ }
+ element.addEventListener(event, _handler, options);
+ });
+ }
+
+ /**
+ * Dispatch event on the target element.
+ * @param {Element} element - The event target.
+ * @param {string} type - The event type(s).
+ * @param {Object} data - The additional event data.
+ * @returns {boolean} Indicate if the event is default prevented or not.
+ */
+ function dispatchEvent(element, type, data) {
+ var event;
+
+ // Event and CustomEvent on IE9-11 are global objects, not constructors
+ if (isFunction(Event) && isFunction(CustomEvent)) {
+ event = new CustomEvent(type, {
+ detail: data,
+ bubbles: true,
+ cancelable: true
+ });
+ } else {
+ event = document.createEvent('CustomEvent');
+ event.initCustomEvent(type, true, true, data);
+ }
+ return element.dispatchEvent(event);
+ }
+
+ /**
+ * Get the offset base on the document.
+ * @param {Element} element - The target element.
+ * @returns {Object} The offset data.
+ */
+ function getOffset(element) {
+ var box = element.getBoundingClientRect();
+ return {
+ left: box.left + (window.pageXOffset - document.documentElement.clientLeft),
+ top: box.top + (window.pageYOffset - document.documentElement.clientTop)
+ };
+ }
+ var location = WINDOW.location;
+ var REGEXP_ORIGINS = /^(\w+:)\/\/([^:/?#]*):?(\d*)/i;
+
+ /**
+ * Check if the given URL is a cross origin URL.
+ * @param {string} url - The target URL.
+ * @returns {boolean} Returns `true` if the given URL is a cross origin URL, else `false`.
+ */
+ function isCrossOriginURL(url) {
+ var parts = url.match(REGEXP_ORIGINS);
+ return parts !== null && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
+ }
+
+ /**
+ * Add timestamp to the given URL.
+ * @param {string} url - The target URL.
+ * @returns {string} The result URL.
+ */
+ function addTimestamp(url) {
+ var timestamp = "timestamp=".concat(new Date().getTime());
+ return url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp;
+ }
+
+ /**
+ * Get transforms base on the given object.
+ * @param {Object} obj - The target object.
+ * @returns {string} A string contains transform values.
+ */
+ function getTransforms(_ref) {
+ var rotate = _ref.rotate,
+ scaleX = _ref.scaleX,
+ scaleY = _ref.scaleY,
+ translateX = _ref.translateX,
+ translateY = _ref.translateY;
+ var values = [];
+ if (isNumber(translateX) && translateX !== 0) {
+ values.push("translateX(".concat(translateX, "px)"));
+ }
+ if (isNumber(translateY) && translateY !== 0) {
+ values.push("translateY(".concat(translateY, "px)"));
+ }
+
+ // Rotate should come first before scale to match orientation transform
+ if (isNumber(rotate) && rotate !== 0) {
+ values.push("rotate(".concat(rotate, "deg)"));
+ }
+ if (isNumber(scaleX) && scaleX !== 1) {
+ values.push("scaleX(".concat(scaleX, ")"));
+ }
+ if (isNumber(scaleY) && scaleY !== 1) {
+ values.push("scaleY(".concat(scaleY, ")"));
+ }
+ var transform = values.length ? values.join(' ') : 'none';
+ return {
+ WebkitTransform: transform,
+ msTransform: transform,
+ transform: transform
+ };
+ }
+
+ /**
+ * Get the max ratio of a group of pointers.
+ * @param {string} pointers - The target pointers.
+ * @returns {number} The result ratio.
+ */
+ function getMaxZoomRatio(pointers) {
+ var pointers2 = _objectSpread2({}, pointers);
+ var maxRatio = 0;
+ 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;
+ if (Math.abs(ratio) > Math.abs(maxRatio)) {
+ maxRatio = ratio;
+ }
+ });
+ });
+ return maxRatio;
+ }
+
+ /**
+ * Get a pointer from an event object.
+ * @param {Object} event - The target event object.
+ * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.
+ * @returns {Object} The result pointer contains start and/or end point coordinates.
+ */
+ function getPointer(_ref2, endOnly) {
+ var pageX = _ref2.pageX,
+ pageY = _ref2.pageY;
+ var end = {
+ endX: pageX,
+ endY: pageY
+ };
+ return endOnly ? end : _objectSpread2({
+ startX: pageX,
+ startY: pageY
+ }, end);
+ }
+
+ /**
+ * Get the center point coordinate of a group of pointers.
+ * @param {Object} pointers - The target pointers.
+ * @returns {Object} The center point coordinate.
+ */
+ function getPointersCenter(pointers) {
+ var pageX = 0;
+ var pageY = 0;
+ var count = 0;
+ forEach(pointers, function (_ref3) {
+ var startX = _ref3.startX,
+ startY = _ref3.startY;
+ pageX += startX;
+ pageY += startY;
+ count += 1;
+ });
+ pageX /= count;
+ pageY /= count;
+ return {
+ pageX: pageX,
+ pageY: pageY
+ };
+ }
+
+ /**
+ * Get the max sizes in a rectangle under the given aspect ratio.
+ * @param {Object} data - The original sizes.
+ * @param {string} [type='contain'] - The adjust type.
+ * @returns {Object} The result sizes.
+ */
+ function getAdjustedSizes(_ref4) {
+ var aspectRatio = _ref4.aspectRatio,
+ height = _ref4.height,
+ width = _ref4.width;
+ var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'contain';
+ var isValidWidth = isPositiveNumber(width);
+ var isValidHeight = isPositiveNumber(height);
+ if (isValidWidth && isValidHeight) {
+ var adjustedWidth = height * aspectRatio;
+ if (type === 'contain' && adjustedWidth > width || type === 'cover' && adjustedWidth < width) {
+ height = width / aspectRatio;
+ } else {
+ width = height * aspectRatio;
+ }
+ } else if (isValidWidth) {
+ height = width / aspectRatio;
+ } else if (isValidHeight) {
+ width = height * aspectRatio;
+ }
+ return {
+ width: width,
+ height: height
+ };
+ }
+
+ /**
+ * Get the new sizes of a rectangle after rotated.
+ * @param {Object} data - The original sizes.
+ * @returns {Object} The result sizes.
+ */
+ function getRotatedSizes(_ref5) {
+ var width = _ref5.width,
+ height = _ref5.height,
+ degree = _ref5.degree;
+ degree = Math.abs(degree) % 180;
+ if (degree === 90) {
+ return {
+ width: height,
+ height: width
+ };
+ }
+ var arc = degree % 90 * Math.PI / 180;
+ var sinArc = Math.sin(arc);
+ var cosArc = Math.cos(arc);
+ var newWidth = width * cosArc + height * sinArc;
+ var newHeight = width * sinArc + height * cosArc;
+ return degree > 90 ? {
+ width: newHeight,
+ height: newWidth
+ } : {
+ width: newWidth,
+ height: newHeight
+ };
+ }
+
+ /**
+ * Get a canvas which drew the given image.
+ * @param {HTMLImageElement} image - The image for drawing.
+ * @param {Object} imageData - The image data.
+ * @param {Object} canvasData - The canvas data.
+ * @param {Object} options - The options.
+ * @returns {HTMLCanvasElement} The result canvas.
+ */
+ function getSourceCanvas(image, _ref6, _ref7, _ref8) {
+ var imageAspectRatio = _ref6.aspectRatio,
+ imageNaturalWidth = _ref6.naturalWidth,
+ imageNaturalHeight = _ref6.naturalHeight,
+ _ref6$rotate = _ref6.rotate,
+ rotate = _ref6$rotate === void 0 ? 0 : _ref6$rotate,
+ _ref6$scaleX = _ref6.scaleX,
+ scaleX = _ref6$scaleX === void 0 ? 1 : _ref6$scaleX,
+ _ref6$scaleY = _ref6.scaleY,
+ scaleY = _ref6$scaleY === void 0 ? 1 : _ref6$scaleY;
+ var aspectRatio = _ref7.aspectRatio,
+ naturalWidth = _ref7.naturalWidth,
+ naturalHeight = _ref7.naturalHeight;
+ var _ref8$fillColor = _ref8.fillColor,
+ fillColor = _ref8$fillColor === void 0 ? 'transparent' : _ref8$fillColor,
+ _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,
+ imageSmoothingEnabled = _ref8$imageSmoothingE === void 0 ? true : _ref8$imageSmoothingE,
+ _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,
+ imageSmoothingQuality = _ref8$imageSmoothingQ === void 0 ? 'low' : _ref8$imageSmoothingQ,
+ _ref8$maxWidth = _ref8.maxWidth,
+ maxWidth = _ref8$maxWidth === void 0 ? Infinity : _ref8$maxWidth,
+ _ref8$maxHeight = _ref8.maxHeight,
+ maxHeight = _ref8$maxHeight === void 0 ? Infinity : _ref8$maxHeight,
+ _ref8$minWidth = _ref8.minWidth,
+ minWidth = _ref8$minWidth === void 0 ? 0 : _ref8$minWidth,
+ _ref8$minHeight = _ref8.minHeight,
+ minHeight = _ref8$minHeight === void 0 ? 0 : _ref8$minHeight;
+ var canvas = document.createElement('canvas');
+ var context = canvas.getContext('2d');
+ var maxSizes = getAdjustedSizes({
+ aspectRatio: aspectRatio,
+ width: maxWidth,
+ height: maxHeight
+ });
+ var minSizes = getAdjustedSizes({
+ aspectRatio: aspectRatio,
+ width: minWidth,
+ height: minHeight
+ }, 'cover');
+ var width = Math.min(maxSizes.width, Math.max(minSizes.width, naturalWidth));
+ var height = Math.min(maxSizes.height, Math.max(minSizes.height, naturalHeight));
+
+ // Note: should always use image's natural sizes for drawing as
+ // imageData.naturalWidth === canvasData.naturalHeight when rotate % 180 === 90
+ var destMaxSizes = getAdjustedSizes({
+ aspectRatio: imageAspectRatio,
+ width: maxWidth,
+ height: maxHeight
+ });
+ var destMinSizes = getAdjustedSizes({
+ aspectRatio: imageAspectRatio,
+ width: minWidth,
+ height: minHeight
+ }, 'cover');
+ var destWidth = Math.min(destMaxSizes.width, Math.max(destMinSizes.width, imageNaturalWidth));
+ var destHeight = Math.min(destMaxSizes.height, Math.max(destMinSizes.height, imageNaturalHeight));
+ var params = [-destWidth / 2, -destHeight / 2, destWidth, destHeight];
+ canvas.width = normalizeDecimalNumber(width);
+ canvas.height = normalizeDecimalNumber(height);
+ context.fillStyle = fillColor;
+ context.fillRect(0, 0, width, height);
+ context.save();
+ context.translate(width / 2, height / 2);
+ context.rotate(rotate * Math.PI / 180);
+ context.scale(scaleX, scaleY);
+ context.imageSmoothingEnabled = imageSmoothingEnabled;
+ context.imageSmoothingQuality = imageSmoothingQuality;
+ context.drawImage.apply(context, [image].concat(_toConsumableArray(params.map(function (param) {
+ return Math.floor(normalizeDecimalNumber(param));
+ }))));
+ context.restore();
+ return canvas;
+ }
+ var fromCharCode = String.fromCharCode;
+
+ /**
+ * Get string from char code in data view.
+ * @param {DataView} dataView - The data view for read.
+ * @param {number} start - The start index.
+ * @param {number} length - The read length.
+ * @returns {string} The read result.
+ */
+ function getStringFromCharCode(dataView, start, length) {
+ var str = '';
+ length += start;
+ for (var i = start; i < length; i += 1) {
+ str += fromCharCode(dataView.getUint8(i));
+ }
+ return str;
+ }
+ var REGEXP_DATA_URL_HEAD = /^data:.*,/;
+
+ /**
+ * Transform Data URL to array buffer.
+ * @param {string} dataURL - The Data URL to transform.
+ * @returns {ArrayBuffer} The result array buffer.
+ */
+ function dataURLToArrayBuffer(dataURL) {
+ var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
+ var binary = atob(base64);
+ var arrayBuffer = new ArrayBuffer(binary.length);
+ var uint8 = new Uint8Array(arrayBuffer);
+ forEach(uint8, function (value, i) {
+ uint8[i] = binary.charCodeAt(i);
+ });
+ return arrayBuffer;
+ }
+
+ /**
+ * Transform array buffer to Data URL.
+ * @param {ArrayBuffer} arrayBuffer - The array buffer to transform.
+ * @param {string} mimeType - The mime type of the Data URL.
+ * @returns {string} The result Data URL.
+ */
+ function arrayBufferToDataURL(arrayBuffer, mimeType) {
+ var chunks = [];
+
+ // Chunk Typed Array for better performance (#435)
+ var chunkSize = 8192;
+ var uint8 = new Uint8Array(arrayBuffer);
+ while (uint8.length > 0) {
+ // XXX: Babel's `toConsumableArray` helper will throw error in IE or Safari 9
+ // eslint-disable-next-line prefer-spread
+ chunks.push(fromCharCode.apply(null, toArray(uint8.subarray(0, chunkSize))));
+ uint8 = uint8.subarray(chunkSize);
+ }
+ return "data:".concat(mimeType, ";base64,").concat(btoa(chunks.join('')));
+ }
+
+ /**
+ * Get orientation value from given array buffer.
+ * @param {ArrayBuffer} arrayBuffer - The array buffer to read.
+ * @returns {number} The read orientation value.
+ */
+ function resetAndGetOrientation(arrayBuffer) {
+ var dataView = new DataView(arrayBuffer);
+ var orientation;
+
+ // Ignores range error when the image does not have correct Exif information
+ try {
+ var littleEndian;
+ var app1Start;
+ var ifdStart;
+
+ // Only handle JPEG image (start by 0xFFD8)
+ if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
+ var length = dataView.byteLength;
+ var offset = 2;
+ while (offset + 1 < length) {
+ if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
+ app1Start = offset;
+ break;
+ }
+ offset += 1;
+ }
+ }
+ if (app1Start) {
+ var exifIDCode = app1Start + 4;
+ var tiffOffset = app1Start + 10;
+ if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
+ var endianness = dataView.getUint16(tiffOffset);
+ littleEndian = endianness === 0x4949;
+ if (littleEndian || endianness === 0x4D4D /* bigEndian */) {
+ if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {
+ var firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
+ if (firstIFDOffset >= 0x00000008) {
+ ifdStart = tiffOffset + firstIFDOffset;
+ }
+ }
+ }
+ }
+ }
+ if (ifdStart) {
+ var _length = dataView.getUint16(ifdStart, littleEndian);
+ var _offset;
+ var i;
+ for (i = 0; i < _length; i += 1) {
+ _offset = ifdStart + i * 12 + 2;
+ if (dataView.getUint16(_offset, littleEndian) === 0x0112 /* Orientation */) {
+ // 8 is the offset of the current tag's value
+ _offset += 8;
+
+ // Get the original orientation value
+ orientation = dataView.getUint16(_offset, littleEndian);
+
+ // Override the orientation with its default value
+ dataView.setUint16(_offset, 1, littleEndian);
+ break;
+ }
+ }
+ }
+ } catch (error) {
+ orientation = 1;
+ }
+ return orientation;
+ }
+
+ /**
+ * Parse Exif Orientation value.
+ * @param {number} orientation - The orientation to parse.
+ * @returns {Object} The parsed result.
+ */
+ function parseOrientation(orientation) {
+ var rotate = 0;
+ var scaleX = 1;
+ var scaleY = 1;
+ switch (orientation) {
+ // Flip horizontal
+ case 2:
+ scaleX = -1;
+ break;
+
+ // Rotate left 180°
+ case 3:
+ rotate = -180;
+ break;
+
+ // Flip vertical
+ case 4:
+ scaleY = -1;
+ break;
+
+ // Flip vertical and rotate right 90°
+ case 5:
+ rotate = 90;
+ scaleY = -1;
+ break;
+
+ // Rotate right 90°
+ case 6:
+ rotate = 90;
+ break;
+
+ // Flip horizontal and rotate right 90°
+ case 7:
+ rotate = 90;
+ scaleX = -1;
+ break;
+
+ // Rotate left 90°
+ case 8:
+ rotate = -90;
+ break;
+ }
+ return {
+ rotate: rotate,
+ scaleX: scaleX,
+ scaleY: scaleY
+ };
+ }
+
+ var render = {
+ render: function render() {
+ this.initContainer();
+ this.initCanvas();
+ this.initCropBox();
+ this.renderCanvas();
+ if (this.cropped) {
+ this.renderCropBox();
+ }
+ },
+ initContainer: function initContainer() {
+ var element = this.element,
+ options = this.options,
+ container = this.container,
+ cropper = this.cropper;
+ var minWidth = Number(options.minContainerWidth);
+ var minHeight = Number(options.minContainerHeight);
+ addClass(cropper, CLASS_HIDDEN);
+ removeClass(element, CLASS_HIDDEN);
+ var containerData = {
+ width: Math.max(container.offsetWidth, minWidth >= 0 ? minWidth : MIN_CONTAINER_WIDTH),
+ height: Math.max(container.offsetHeight, minHeight >= 0 ? minHeight : MIN_CONTAINER_HEIGHT)
+ };
+ this.containerData = containerData;
+ setStyle(cropper, {
+ width: containerData.width,
+ height: containerData.height
+ });
+ addClass(element, CLASS_HIDDEN);
+ removeClass(cropper, CLASS_HIDDEN);
+ },
+ // Canvas (image wrapper)
+ initCanvas: function initCanvas() {
+ var containerData = this.containerData,
+ imageData = this.imageData;
+ var viewMode = this.options.viewMode;
+ var rotated = Math.abs(imageData.rotate) % 180 === 90;
+ var naturalWidth = rotated ? imageData.naturalHeight : imageData.naturalWidth;
+ var naturalHeight = rotated ? imageData.naturalWidth : imageData.naturalHeight;
+ var aspectRatio = naturalWidth / naturalHeight;
+ var canvasWidth = containerData.width;
+ var canvasHeight = containerData.height;
+ if (containerData.height * aspectRatio > containerData.width) {
+ if (viewMode === 3) {
+ canvasWidth = containerData.height * aspectRatio;
+ } else {
+ canvasHeight = containerData.width / aspectRatio;
+ }
+ } else if (viewMode === 3) {
+ canvasHeight = containerData.width / aspectRatio;
+ } else {
+ canvasWidth = containerData.height * aspectRatio;
+ }
+ var canvasData = {
+ aspectRatio: aspectRatio,
+ naturalWidth: naturalWidth,
+ naturalHeight: naturalHeight,
+ width: canvasWidth,
+ height: canvasHeight
+ };
+ this.canvasData = canvasData;
+ this.limited = viewMode === 1 || viewMode === 2;
+ this.limitCanvas(true, true);
+ canvasData.width = Math.min(Math.max(canvasData.width, canvasData.minWidth), canvasData.maxWidth);
+ canvasData.height = Math.min(Math.max(canvasData.height, canvasData.minHeight), canvasData.maxHeight);
+ canvasData.left = (containerData.width - canvasData.width) / 2;
+ canvasData.top = (containerData.height - canvasData.height) / 2;
+ canvasData.oldLeft = canvasData.left;
+ canvasData.oldTop = canvasData.top;
+ this.initialCanvasData = assign({}, canvasData);
+ },
+ limitCanvas: function limitCanvas(sizeLimited, positionLimited) {
+ var options = this.options,
+ containerData = this.containerData,
+ canvasData = this.canvasData,
+ cropBoxData = this.cropBoxData;
+ var viewMode = options.viewMode;
+ var aspectRatio = canvasData.aspectRatio;
+ var cropped = this.cropped && cropBoxData;
+ if (sizeLimited) {
+ var minCanvasWidth = Number(options.minCanvasWidth) || 0;
+ var minCanvasHeight = Number(options.minCanvasHeight) || 0;
+ if (viewMode > 1) {
+ minCanvasWidth = Math.max(minCanvasWidth, containerData.width);
+ minCanvasHeight = Math.max(minCanvasHeight, containerData.height);
+ if (viewMode === 3) {
+ if (minCanvasHeight * aspectRatio > minCanvasWidth) {
+ minCanvasWidth = minCanvasHeight * aspectRatio;
+ } else {
+ minCanvasHeight = minCanvasWidth / aspectRatio;
+ }
+ }
+ } else if (viewMode > 0) {
+ if (minCanvasWidth) {
+ minCanvasWidth = Math.max(minCanvasWidth, cropped ? cropBoxData.width : 0);
+ } else if (minCanvasHeight) {
+ minCanvasHeight = Math.max(minCanvasHeight, cropped ? cropBoxData.height : 0);
+ } else if (cropped) {
+ minCanvasWidth = cropBoxData.width;
+ minCanvasHeight = cropBoxData.height;
+ if (minCanvasHeight * aspectRatio > minCanvasWidth) {
+ minCanvasWidth = minCanvasHeight * aspectRatio;
+ } else {
+ minCanvasHeight = minCanvasWidth / aspectRatio;
+ }
+ }
+ }
+ var _getAdjustedSizes = getAdjustedSizes({
+ aspectRatio: aspectRatio,
+ width: minCanvasWidth,
+ height: minCanvasHeight
+ });
+ minCanvasWidth = _getAdjustedSizes.width;
+ minCanvasHeight = _getAdjustedSizes.height;
+ canvasData.minWidth = minCanvasWidth;
+ canvasData.minHeight = minCanvasHeight;
+ canvasData.maxWidth = Infinity;
+ canvasData.maxHeight = Infinity;
+ }
+ if (positionLimited) {
+ if (viewMode > (cropped ? 0 : 1)) {
+ var newCanvasLeft = containerData.width - canvasData.width;
+ var newCanvasTop = containerData.height - canvasData.height;
+ canvasData.minLeft = Math.min(0, newCanvasLeft);
+ canvasData.minTop = Math.min(0, newCanvasTop);
+ canvasData.maxLeft = Math.max(0, newCanvasLeft);
+ canvasData.maxTop = Math.max(0, newCanvasTop);
+ if (cropped && this.limited) {
+ canvasData.minLeft = Math.min(cropBoxData.left, cropBoxData.left + (cropBoxData.width - canvasData.width));
+ canvasData.minTop = Math.min(cropBoxData.top, cropBoxData.top + (cropBoxData.height - canvasData.height));
+ canvasData.maxLeft = cropBoxData.left;
+ canvasData.maxTop = cropBoxData.top;
+ if (viewMode === 2) {
+ if (canvasData.width >= containerData.width) {
+ canvasData.minLeft = Math.min(0, newCanvasLeft);
+ canvasData.maxLeft = Math.max(0, newCanvasLeft);
+ }
+ if (canvasData.height >= containerData.height) {
+ canvasData.minTop = Math.min(0, newCanvasTop);
+ canvasData.maxTop = Math.max(0, newCanvasTop);
+ }
+ }
+ }
+ } else {
+ canvasData.minLeft = -canvasData.width;
+ canvasData.minTop = -canvasData.height;
+ canvasData.maxLeft = containerData.width;
+ canvasData.maxTop = containerData.height;
+ }
+ }
+ },
+ renderCanvas: function renderCanvas(changed, transformed) {
+ var canvasData = this.canvasData,
+ imageData = this.imageData;
+ if (transformed) {
+ var _getRotatedSizes = getRotatedSizes({
+ width: imageData.naturalWidth * Math.abs(imageData.scaleX || 1),
+ height: imageData.naturalHeight * Math.abs(imageData.scaleY || 1),
+ degree: imageData.rotate || 0
+ }),
+ naturalWidth = _getRotatedSizes.width,
+ naturalHeight = _getRotatedSizes.height;
+ var width = canvasData.width * (naturalWidth / canvasData.naturalWidth);
+ var height = canvasData.height * (naturalHeight / canvasData.naturalHeight);
+ canvasData.left -= (width - canvasData.width) / 2;
+ canvasData.top -= (height - canvasData.height) / 2;
+ canvasData.width = width;
+ canvasData.height = height;
+ canvasData.aspectRatio = naturalWidth / naturalHeight;
+ canvasData.naturalWidth = naturalWidth;
+ canvasData.naturalHeight = naturalHeight;
+ this.limitCanvas(true, false);
+ }
+ if (canvasData.width > canvasData.maxWidth || canvasData.width < canvasData.minWidth) {
+ canvasData.left = canvasData.oldLeft;
+ }
+ if (canvasData.height > canvasData.maxHeight || canvasData.height < canvasData.minHeight) {
+ canvasData.top = canvasData.oldTop;
+ }
+ canvasData.width = Math.min(Math.max(canvasData.width, canvasData.minWidth), canvasData.maxWidth);
+ canvasData.height = Math.min(Math.max(canvasData.height, canvasData.minHeight), canvasData.maxHeight);
+ this.limitCanvas(false, true);
+ canvasData.left = Math.min(Math.max(canvasData.left, canvasData.minLeft), canvasData.maxLeft);
+ canvasData.top = Math.min(Math.max(canvasData.top, canvasData.minTop), canvasData.maxTop);
+ canvasData.oldLeft = canvasData.left;
+ canvasData.oldTop = canvasData.top;
+ setStyle(this.canvas, assign({
+ width: canvasData.width,
+ height: canvasData.height
+ }, getTransforms({
+ translateX: canvasData.left,
+ translateY: canvasData.top
+ })));
+ this.renderImage(changed);
+ if (this.cropped && this.limited) {
+ this.limitCropBox(true, true);
+ }
+ },
+ renderImage: function renderImage(changed) {
+ var canvasData = this.canvasData,
+ imageData = this.imageData;
+ var width = imageData.naturalWidth * (canvasData.width / canvasData.naturalWidth);
+ var height = imageData.naturalHeight * (canvasData.height / canvasData.naturalHeight);
+ assign(imageData, {
+ width: width,
+ height: height,
+ left: (canvasData.width - width) / 2,
+ top: (canvasData.height - height) / 2
+ });
+ setStyle(this.image, assign({
+ width: imageData.width,
+ height: imageData.height
+ }, getTransforms(assign({
+ translateX: imageData.left,
+ translateY: imageData.top
+ }, imageData))));
+ if (changed) {
+ this.output();
+ }
+ },
+ initCropBox: function initCropBox() {
+ var options = this.options,
+ canvasData = this.canvasData;
+ var aspectRatio = options.aspectRatio || options.initialAspectRatio;
+ var autoCropArea = Number(options.autoCropArea) || 0.8;
+ var cropBoxData = {
+ width: canvasData.width,
+ height: canvasData.height
+ };
+ if (aspectRatio) {
+ if (canvasData.height * aspectRatio > canvasData.width) {
+ cropBoxData.height = cropBoxData.width / aspectRatio;
+ } else {
+ cropBoxData.width = cropBoxData.height * aspectRatio;
+ }
+ }
+ this.cropBoxData = cropBoxData;
+ this.limitCropBox(true, true);
+
+ // Initialize auto crop area
+ cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);
+ cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);
+
+ // The width/height of auto crop area must large than "minWidth/Height"
+ cropBoxData.width = Math.max(cropBoxData.minWidth, cropBoxData.width * autoCropArea);
+ cropBoxData.height = Math.max(cropBoxData.minHeight, cropBoxData.height * autoCropArea);
+ cropBoxData.left = canvasData.left + (canvasData.width - cropBoxData.width) / 2;
+ cropBoxData.top = canvasData.top + (canvasData.height - cropBoxData.height) / 2;
+ cropBoxData.oldLeft = cropBoxData.left;
+ cropBoxData.oldTop = cropBoxData.top;
+ this.initialCropBoxData = assign({}, cropBoxData);
+ },
+ limitCropBox: function limitCropBox(sizeLimited, positionLimited) {
+ var options = this.options,
+ containerData = this.containerData,
+ canvasData = this.canvasData,
+ cropBoxData = this.cropBoxData,
+ limited = this.limited;
+ var aspectRatio = options.aspectRatio;
+ if (sizeLimited) {
+ var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
+ var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
+ var maxCropBoxWidth = limited ? Math.min(containerData.width, canvasData.width, canvasData.width + canvasData.left, containerData.width - canvasData.left) : containerData.width;
+ var maxCropBoxHeight = limited ? Math.min(containerData.height, canvasData.height, canvasData.height + canvasData.top, containerData.height - canvasData.top) : containerData.height;
+
+ // The min/maxCropBoxWidth/Height must be less than container's width/height
+ minCropBoxWidth = Math.min(minCropBoxWidth, containerData.width);
+ minCropBoxHeight = Math.min(minCropBoxHeight, containerData.height);
+ if (aspectRatio) {
+ if (minCropBoxWidth && minCropBoxHeight) {
+ if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {
+ minCropBoxHeight = minCropBoxWidth / aspectRatio;
+ } else {
+ minCropBoxWidth = minCropBoxHeight * aspectRatio;
+ }
+ } else if (minCropBoxWidth) {
+ minCropBoxHeight = minCropBoxWidth / aspectRatio;
+ } else if (minCropBoxHeight) {
+ minCropBoxWidth = minCropBoxHeight * aspectRatio;
+ }
+ if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
+ maxCropBoxHeight = maxCropBoxWidth / aspectRatio;
+ } else {
+ maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
+ }
+ }
+
+ // The minWidth/Height must be less than maxWidth/Height
+ cropBoxData.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
+ cropBoxData.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
+ cropBoxData.maxWidth = maxCropBoxWidth;
+ cropBoxData.maxHeight = maxCropBoxHeight;
+ }
+ if (positionLimited) {
+ if (limited) {
+ cropBoxData.minLeft = Math.max(0, canvasData.left);
+ cropBoxData.minTop = Math.max(0, canvasData.top);
+ cropBoxData.maxLeft = Math.min(containerData.width, canvasData.left + canvasData.width) - cropBoxData.width;
+ cropBoxData.maxTop = Math.min(containerData.height, canvasData.top + canvasData.height) - cropBoxData.height;
+ } else {
+ cropBoxData.minLeft = 0;
+ cropBoxData.minTop = 0;
+ cropBoxData.maxLeft = containerData.width - cropBoxData.width;
+ cropBoxData.maxTop = containerData.height - cropBoxData.height;
+ }
+ }
+ },
+ renderCropBox: function renderCropBox() {
+ var options = this.options,
+ containerData = this.containerData,
+ cropBoxData = this.cropBoxData;
+ if (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
+ cropBoxData.left = cropBoxData.oldLeft;
+ }
+ if (cropBoxData.height > cropBoxData.maxHeight || cropBoxData.height < cropBoxData.minHeight) {
+ cropBoxData.top = cropBoxData.oldTop;
+ }
+ cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);
+ cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);
+ this.limitCropBox(false, true);
+ cropBoxData.left = Math.min(Math.max(cropBoxData.left, cropBoxData.minLeft), cropBoxData.maxLeft);
+ cropBoxData.top = Math.min(Math.max(cropBoxData.top, cropBoxData.minTop), cropBoxData.maxTop);
+ cropBoxData.oldLeft = cropBoxData.left;
+ cropBoxData.oldTop = cropBoxData.top;
+ if (options.movable && options.cropBoxMovable) {
+ // Turn to move the canvas when the crop box is equal to the container
+ setData(this.face, DATA_ACTION, cropBoxData.width >= containerData.width && cropBoxData.height >= containerData.height ? ACTION_MOVE : ACTION_ALL);
+ }
+ setStyle(this.cropBox, assign({
+ width: cropBoxData.width,
+ height: cropBoxData.height
+ }, getTransforms({
+ translateX: cropBoxData.left,
+ translateY: cropBoxData.top
+ })));
+ if (this.cropped && this.limited) {
+ this.limitCanvas(true, true);
+ }
+ if (!this.disabled) {
+ this.output();
+ }
+ },
+ output: function output() {
+ this.preview();
+ dispatchEvent(this.element, EVENT_CROP, this.getData());
+ }
+ };
+
+ var preview = {
+ initPreview: function initPreview() {
+ var element = this.element,
+ crossOrigin = this.crossOrigin;
+ var preview = this.options.preview;
+ var url = crossOrigin ? this.crossOriginUrl : this.url;
+ var alt = element.alt || 'The image to preview';
+ var image = document.createElement('img');
+ if (crossOrigin) {
+ image.crossOrigin = crossOrigin;
+ }
+ image.src = url;
+ image.alt = alt;
+ this.viewBox.appendChild(image);
+ this.viewBoxImage = image;
+ if (!preview) {
+ return;
+ }
+ var previews = preview;
+ if (typeof preview === 'string') {
+ previews = element.ownerDocument.querySelectorAll(preview);
+ } else if (preview.querySelector) {
+ previews = [preview];
+ }
+ this.previews = previews;
+ forEach(previews, function (el) {
+ var img = document.createElement('img');
+
+ // Save the original size for recover
+ setData(el, DATA_PREVIEW, {
+ width: el.offsetWidth,
+ height: el.offsetHeight,
+ html: el.innerHTML
+ });
+ if (crossOrigin) {
+ img.crossOrigin = crossOrigin;
+ }
+ img.src = url;
+ img.alt = alt;
+
+ /**
+ * Override img element styles
+ * Add `display:block` to avoid margin top issue
+ * Add `height:auto` to override `height` attribute on IE8
+ * (Occur only when margin-top <= -height)
+ */
+ img.style.cssText = 'display:block;' + 'width:100%;' + 'height:auto;' + 'min-width:0!important;' + 'min-height:0!important;' + 'max-width:none!important;' + 'max-height:none!important;' + 'image-orientation:0deg!important;"';
+ el.innerHTML = '';
+ el.appendChild(img);
+ });
+ },
+ resetPreview: function resetPreview() {
+ forEach(this.previews, function (element) {
+ var data = getData(element, DATA_PREVIEW);
+ setStyle(element, {
+ width: data.width,
+ height: data.height
+ });
+ element.innerHTML = data.html;
+ removeData(element, DATA_PREVIEW);
+ });
+ },
+ preview: function preview() {
+ var imageData = this.imageData,
+ canvasData = this.canvasData,
+ cropBoxData = this.cropBoxData;
+ var cropBoxWidth = cropBoxData.width,
+ cropBoxHeight = cropBoxData.height;
+ var width = imageData.width,
+ height = imageData.height;
+ var left = cropBoxData.left - canvasData.left - imageData.left;
+ var top = cropBoxData.top - canvasData.top - imageData.top;
+ if (!this.cropped || this.disabled) {
+ return;
+ }
+ setStyle(this.viewBoxImage, assign({
+ width: width,
+ height: height
+ }, getTransforms(assign({
+ translateX: -left,
+ translateY: -top
+ }, imageData))));
+ forEach(this.previews, function (element) {
+ var data = getData(element, DATA_PREVIEW);
+ var originalWidth = data.width;
+ var originalHeight = data.height;
+ var newWidth = originalWidth;
+ var newHeight = originalHeight;
+ var ratio = 1;
+ if (cropBoxWidth) {
+ ratio = originalWidth / cropBoxWidth;
+ newHeight = cropBoxHeight * ratio;
+ }
+ if (cropBoxHeight && newHeight > originalHeight) {
+ ratio = originalHeight / cropBoxHeight;
+ newWidth = cropBoxWidth * ratio;
+ newHeight = originalHeight;
+ }
+ setStyle(element, {
+ width: newWidth,
+ height: newHeight
+ });
+ setStyle(element.getElementsByTagName('img')[0], assign({
+ width: width * ratio,
+ height: height * ratio
+ }, getTransforms(assign({
+ translateX: -left * ratio,
+ translateY: -top * ratio
+ }, imageData))));
+ });
+ }
+ };
+
+ var events = {
+ bind: function bind() {
+ var element = this.element,
+ options = this.options,
+ cropper = this.cropper;
+ if (isFunction(options.cropstart)) {
+ addListener(element, EVENT_CROP_START, options.cropstart);
+ }
+ if (isFunction(options.cropmove)) {
+ addListener(element, EVENT_CROP_MOVE, options.cropmove);
+ }
+ if (isFunction(options.cropend)) {
+ addListener(element, EVENT_CROP_END, options.cropend);
+ }
+ if (isFunction(options.crop)) {
+ addListener(element, EVENT_CROP, options.crop);
+ }
+ if (isFunction(options.zoom)) {
+ addListener(element, EVENT_ZOOM, options.zoom);
+ }
+ addListener(cropper, EVENT_POINTER_DOWN, this.onCropStart = this.cropStart.bind(this));
+ if (options.zoomable && options.zoomOnWheel) {
+ addListener(cropper, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
+ passive: false,
+ capture: true
+ });
+ }
+ if (options.toggleDragModeOnDblclick) {
+ addListener(cropper, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
+ }
+ addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove = this.cropMove.bind(this));
+ addListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd = this.cropEnd.bind(this));
+ if (options.responsive) {
+ addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));
+ }
+ },
+ unbind: function unbind() {
+ var element = this.element,
+ options = this.options,
+ cropper = this.cropper;
+ if (isFunction(options.cropstart)) {
+ removeListener(element, EVENT_CROP_START, options.cropstart);
+ }
+ if (isFunction(options.cropmove)) {
+ removeListener(element, EVENT_CROP_MOVE, options.cropmove);
+ }
+ if (isFunction(options.cropend)) {
+ removeListener(element, EVENT_CROP_END, options.cropend);
+ }
+ if (isFunction(options.crop)) {
+ removeListener(element, EVENT_CROP, options.crop);
+ }
+ if (isFunction(options.zoom)) {
+ removeListener(element, EVENT_ZOOM, options.zoom);
+ }
+ removeListener(cropper, EVENT_POINTER_DOWN, this.onCropStart);
+ if (options.zoomable && options.zoomOnWheel) {
+ removeListener(cropper, EVENT_WHEEL, this.onWheel, {
+ passive: false,
+ capture: true
+ });
+ }
+ if (options.toggleDragModeOnDblclick) {
+ removeListener(cropper, EVENT_DBLCLICK, this.onDblclick);
+ }
+ removeListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onCropMove);
+ removeListener(element.ownerDocument, EVENT_POINTER_UP, this.onCropEnd);
+ if (options.responsive) {
+ removeListener(window, EVENT_RESIZE, this.onResize);
+ }
+ }
+ };
+
+ var handlers = {
+ resize: function resize() {
+ if (this.disabled) {
+ return;
+ }
+ var options = this.options,
+ container = this.container,
+ containerData = this.containerData;
+ var ratioX = container.offsetWidth / containerData.width;
+ var ratioY = container.offsetHeight / containerData.height;
+ var ratio = Math.abs(ratioX - 1) > Math.abs(ratioY - 1) ? ratioX : ratioY;
+
+ // Resize when width changed or height changed
+ if (ratio !== 1) {
+ var canvasData;
+ var cropBoxData;
+ if (options.restore) {
+ canvasData = this.getCanvasData();
+ cropBoxData = this.getCropBoxData();
+ }
+ this.render();
+ if (options.restore) {
+ this.setCanvasData(forEach(canvasData, function (n, i) {
+ canvasData[i] = n * ratio;
+ }));
+ this.setCropBoxData(forEach(cropBoxData, function (n, i) {
+ cropBoxData[i] = n * ratio;
+ }));
+ }
+ }
+ },
+ dblclick: function dblclick() {
+ if (this.disabled || this.options.dragMode === DRAG_MODE_NONE) {
+ return;
+ }
+ this.setDragMode(hasClass(this.dragBox, CLASS_CROP) ? DRAG_MODE_MOVE : DRAG_MODE_CROP);
+ },
+ wheel: function wheel(event) {
+ var _this = this;
+ var ratio = Number(this.options.wheelZoomRatio) || 0.1;
+ var delta = 1;
+ if (this.disabled) {
+ return;
+ }
+ event.preventDefault();
+
+ // Limit wheel speed to prevent zoom too fast (#21)
+ if (this.wheeling) {
+ return;
+ }
+ this.wheeling = true;
+ setTimeout(function () {
+ _this.wheeling = false;
+ }, 50);
+ if (event.deltaY) {
+ delta = event.deltaY > 0 ? 1 : -1;
+ } else if (event.wheelDelta) {
+ delta = -event.wheelDelta / 120;
+ } else if (event.detail) {
+ delta = event.detail > 0 ? 1 : -1;
+ }
+ this.zoom(-delta * ratio, event);
+ },
+ cropStart: function cropStart(event) {
+ var buttons = event.buttons,
+ button = event.button;
+ if (this.disabled
+
+ // Handle mouse event and pointer event and ignore touch event
+ || (event.type === 'mousedown' || event.type === 'pointerdown' && event.pointerType === 'mouse') && (
+ // No primary button (Usually the left button)
+ isNumber(buttons) && buttons !== 1 || isNumber(button) && button !== 0
+
+ // Open context menu
+ || event.ctrlKey)) {
+ return;
+ }
+ var options = this.options,
+ pointers = this.pointers;
+ var action;
+ if (event.changedTouches) {
+ // Handle touch event
+ forEach(event.changedTouches, function (touch) {
+ pointers[touch.identifier] = getPointer(touch);
+ });
+ } else {
+ // Handle mouse event and pointer event
+ pointers[event.pointerId || 0] = getPointer(event);
+ }
+ if (Object.keys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
+ action = ACTION_ZOOM;
+ } else {
+ action = getData(event.target, DATA_ACTION);
+ }
+ if (!REGEXP_ACTIONS.test(action)) {
+ return;
+ }
+ if (dispatchEvent(this.element, EVENT_CROP_START, {
+ originalEvent: event,
+ action: action
+ }) === false) {
+ return;
+ }
+
+ // This line is required for preventing page zooming in iOS browsers
+ event.preventDefault();
+ this.action = action;
+ this.cropping = false;
+ if (action === ACTION_CROP) {
+ this.cropping = true;
+ addClass(this.dragBox, CLASS_MODAL);
+ }
+ },
+ cropMove: function cropMove(event) {
+ var action = this.action;
+ if (this.disabled || !action) {
+ return;
+ }
+ var pointers = this.pointers;
+ event.preventDefault();
+ if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
+ originalEvent: event,
+ action: action
+ }) === false) {
+ return;
+ }
+ if (event.changedTouches) {
+ forEach(event.changedTouches, function (touch) {
+ // The first parameter should not be undefined (#432)
+ assign(pointers[touch.identifier] || {}, getPointer(touch, true));
+ });
+ } else {
+ assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
+ }
+ this.change(event);
+ },
+ cropEnd: function cropEnd(event) {
+ if (this.disabled) {
+ return;
+ }
+ var action = this.action,
+ pointers = this.pointers;
+ if (event.changedTouches) {
+ forEach(event.changedTouches, function (touch) {
+ delete pointers[touch.identifier];
+ });
+ } else {
+ delete pointers[event.pointerId || 0];
+ }
+ if (!action) {
+ return;
+ }
+ event.preventDefault();
+ if (!Object.keys(pointers).length) {
+ this.action = '';
+ }
+ if (this.cropping) {
+ this.cropping = false;
+ toggleClass(this.dragBox, CLASS_MODAL, this.cropped && this.options.modal);
+ }
+ dispatchEvent(this.element, EVENT_CROP_END, {
+ originalEvent: event,
+ action: action
+ });
+ }
+ };
+
+ var change = {
+ change: function change(event) {
+ var options = this.options,
+ canvasData = this.canvasData,
+ containerData = this.containerData,
+ cropBoxData = this.cropBoxData,
+ pointers = this.pointers;
+ var action = this.action;
+ var aspectRatio = options.aspectRatio;
+ var left = cropBoxData.left,
+ top = cropBoxData.top,
+ width = cropBoxData.width,
+ height = cropBoxData.height;
+ var right = left + width;
+ var bottom = top + height;
+ var minLeft = 0;
+ var minTop = 0;
+ var maxWidth = containerData.width;
+ var maxHeight = containerData.height;
+ var renderable = true;
+ var offset;
+
+ // Locking aspect ratio in "free mode" by holding shift key
+ if (!aspectRatio && event.shiftKey) {
+ aspectRatio = width && height ? width / height : 1;
+ }
+ if (this.limited) {
+ minLeft = cropBoxData.minLeft;
+ minTop = cropBoxData.minTop;
+ maxWidth = minLeft + Math.min(containerData.width, canvasData.width, canvasData.left + canvasData.width);
+ maxHeight = minTop + Math.min(containerData.height, canvasData.height, canvasData.top + canvasData.height);
+ }
+ var pointer = pointers[Object.keys(pointers)[0]];
+ var range = {
+ x: pointer.endX - pointer.startX,
+ y: pointer.endY - pointer.startY
+ };
+ var check = function check(side) {
+ switch (side) {
+ case ACTION_EAST:
+ if (right + range.x > maxWidth) {
+ range.x = maxWidth - right;
+ }
+ break;
+ case ACTION_WEST:
+ if (left + range.x < minLeft) {
+ range.x = minLeft - left;
+ }
+ break;
+ case ACTION_NORTH:
+ if (top + range.y < minTop) {
+ range.y = minTop - top;
+ }
+ break;
+ case ACTION_SOUTH:
+ if (bottom + range.y > maxHeight) {
+ range.y = maxHeight - bottom;
+ }
+ break;
+ }
+ };
+ switch (action) {
+ // Move crop box
+ case ACTION_ALL:
+ left += range.x;
+ top += range.y;
+ break;
+
+ // Resize crop box
+ case ACTION_EAST:
+ if (range.x >= 0 && (right >= maxWidth || aspectRatio && (top <= minTop || bottom >= maxHeight))) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_EAST);
+ width += range.x;
+ if (width < 0) {
+ action = ACTION_WEST;
+ width = -width;
+ left -= width;
+ }
+ if (aspectRatio) {
+ height = width / aspectRatio;
+ top += (cropBoxData.height - height) / 2;
+ }
+ break;
+ case ACTION_NORTH:
+ if (range.y <= 0 && (top <= minTop || aspectRatio && (left <= minLeft || right >= maxWidth))) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_NORTH);
+ height -= range.y;
+ top += range.y;
+ if (height < 0) {
+ action = ACTION_SOUTH;
+ height = -height;
+ top -= height;
+ }
+ if (aspectRatio) {
+ width = height * aspectRatio;
+ left += (cropBoxData.width - width) / 2;
+ }
+ break;
+ case ACTION_WEST:
+ if (range.x <= 0 && (left <= minLeft || aspectRatio && (top <= minTop || bottom >= maxHeight))) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_WEST);
+ width -= range.x;
+ left += range.x;
+ if (width < 0) {
+ action = ACTION_EAST;
+ width = -width;
+ left -= width;
+ }
+ if (aspectRatio) {
+ height = width / aspectRatio;
+ top += (cropBoxData.height - height) / 2;
+ }
+ break;
+ case ACTION_SOUTH:
+ if (range.y >= 0 && (bottom >= maxHeight || aspectRatio && (left <= minLeft || right >= maxWidth))) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_SOUTH);
+ height += range.y;
+ if (height < 0) {
+ action = ACTION_NORTH;
+ height = -height;
+ top -= height;
+ }
+ if (aspectRatio) {
+ width = height * aspectRatio;
+ left += (cropBoxData.width - width) / 2;
+ }
+ break;
+ case ACTION_NORTH_EAST:
+ if (aspectRatio) {
+ if (range.y <= 0 && (top <= minTop || right >= maxWidth)) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_NORTH);
+ height -= range.y;
+ top += range.y;
+ width = height * aspectRatio;
+ } else {
+ check(ACTION_NORTH);
+ check(ACTION_EAST);
+ if (range.x >= 0) {
+ if (right < maxWidth) {
+ width += range.x;
+ } else if (range.y <= 0 && top <= minTop) {
+ renderable = false;
+ }
+ } else {
+ width += range.x;
+ }
+ if (range.y <= 0) {
+ if (top > minTop) {
+ height -= range.y;
+ top += range.y;
+ }
+ } else {
+ height -= range.y;
+ top += range.y;
+ }
+ }
+ if (width < 0 && height < 0) {
+ action = ACTION_SOUTH_WEST;
+ height = -height;
+ width = -width;
+ top -= height;
+ left -= width;
+ } else if (width < 0) {
+ action = ACTION_NORTH_WEST;
+ width = -width;
+ left -= width;
+ } else if (height < 0) {
+ action = ACTION_SOUTH_EAST;
+ height = -height;
+ top -= height;
+ }
+ break;
+ case ACTION_NORTH_WEST:
+ if (aspectRatio) {
+ if (range.y <= 0 && (top <= minTop || left <= minLeft)) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_NORTH);
+ height -= range.y;
+ top += range.y;
+ width = height * aspectRatio;
+ left += cropBoxData.width - width;
+ } else {
+ check(ACTION_NORTH);
+ check(ACTION_WEST);
+ if (range.x <= 0) {
+ if (left > minLeft) {
+ width -= range.x;
+ left += range.x;
+ } else if (range.y <= 0 && top <= minTop) {
+ renderable = false;
+ }
+ } else {
+ width -= range.x;
+ left += range.x;
+ }
+ if (range.y <= 0) {
+ if (top > minTop) {
+ height -= range.y;
+ top += range.y;
+ }
+ } else {
+ height -= range.y;
+ top += range.y;
+ }
+ }
+ if (width < 0 && height < 0) {
+ action = ACTION_SOUTH_EAST;
+ height = -height;
+ width = -width;
+ top -= height;
+ left -= width;
+ } else if (width < 0) {
+ action = ACTION_NORTH_EAST;
+ width = -width;
+ left -= width;
+ } else if (height < 0) {
+ action = ACTION_SOUTH_WEST;
+ height = -height;
+ top -= height;
+ }
+ break;
+ case ACTION_SOUTH_WEST:
+ if (aspectRatio) {
+ if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_WEST);
+ width -= range.x;
+ left += range.x;
+ height = width / aspectRatio;
+ } else {
+ check(ACTION_SOUTH);
+ check(ACTION_WEST);
+ if (range.x <= 0) {
+ if (left > minLeft) {
+ width -= range.x;
+ left += range.x;
+ } else if (range.y >= 0 && bottom >= maxHeight) {
+ renderable = false;
+ }
+ } else {
+ width -= range.x;
+ left += range.x;
+ }
+ if (range.y >= 0) {
+ if (bottom < maxHeight) {
+ height += range.y;
+ }
+ } else {
+ height += range.y;
+ }
+ }
+ if (width < 0 && height < 0) {
+ action = ACTION_NORTH_EAST;
+ height = -height;
+ width = -width;
+ top -= height;
+ left -= width;
+ } else if (width < 0) {
+ action = ACTION_SOUTH_EAST;
+ width = -width;
+ left -= width;
+ } else if (height < 0) {
+ action = ACTION_NORTH_WEST;
+ height = -height;
+ top -= height;
+ }
+ break;
+ case ACTION_SOUTH_EAST:
+ if (aspectRatio) {
+ if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {
+ renderable = false;
+ break;
+ }
+ check(ACTION_EAST);
+ width += range.x;
+ height = width / aspectRatio;
+ } else {
+ check(ACTION_SOUTH);
+ check(ACTION_EAST);
+ if (range.x >= 0) {
+ if (right < maxWidth) {
+ width += range.x;
+ } else if (range.y >= 0 && bottom >= maxHeight) {
+ renderable = false;
+ }
+ } else {
+ width += range.x;
+ }
+ if (range.y >= 0) {
+ if (bottom < maxHeight) {
+ height += range.y;
+ }
+ } else {
+ height += range.y;
+ }
+ }
+ if (width < 0 && height < 0) {
+ action = ACTION_NORTH_WEST;
+ height = -height;
+ width = -width;
+ top -= height;
+ left -= width;
+ } else if (width < 0) {
+ action = ACTION_SOUTH_WEST;
+ width = -width;
+ left -= width;
+ } else if (height < 0) {
+ action = ACTION_NORTH_EAST;
+ height = -height;
+ top -= height;
+ }
+ break;
+
+ // Move canvas
+ case ACTION_MOVE:
+ this.move(range.x, range.y);
+ renderable = false;
+ break;
+
+ // Zoom canvas
+ case ACTION_ZOOM:
+ this.zoom(getMaxZoomRatio(pointers), event);
+ renderable = false;
+ break;
+
+ // Create crop box
+ case ACTION_CROP:
+ if (!range.x || !range.y) {
+ renderable = false;
+ break;
+ }
+ offset = getOffset(this.cropper);
+ left = pointer.startX - offset.left;
+ top = pointer.startY - offset.top;
+ width = cropBoxData.minWidth;
+ height = cropBoxData.minHeight;
+ if (range.x > 0) {
+ action = range.y > 0 ? ACTION_SOUTH_EAST : ACTION_NORTH_EAST;
+ } else if (range.x < 0) {
+ left -= width;
+ action = range.y > 0 ? ACTION_SOUTH_WEST : ACTION_NORTH_WEST;
+ }
+ if (range.y < 0) {
+ top -= height;
+ }
+
+ // Show the crop box if is hidden
+ if (!this.cropped) {
+ removeClass(this.cropBox, CLASS_HIDDEN);
+ this.cropped = true;
+ if (this.limited) {
+ this.limitCropBox(true, true);
+ }
+ }
+ break;
+ }
+ if (renderable) {
+ cropBoxData.width = width;
+ cropBoxData.height = height;
+ cropBoxData.left = left;
+ cropBoxData.top = top;
+ this.action = action;
+ this.renderCropBox();
+ }
+
+ // Override
+ forEach(pointers, function (p) {
+ p.startX = p.endX;
+ p.startY = p.endY;
+ });
+ }
+ };
+
+ var methods = {
+ // Show the crop box manually
+ crop: function crop() {
+ if (this.ready && !this.cropped && !this.disabled) {
+ this.cropped = true;
+ this.limitCropBox(true, true);
+ if (this.options.modal) {
+ addClass(this.dragBox, CLASS_MODAL);
+ }
+ removeClass(this.cropBox, CLASS_HIDDEN);
+ this.setCropBoxData(this.initialCropBoxData);
+ }
+ return this;
+ },
+ // Reset the image and crop box to their initial states
+ reset: function reset() {
+ if (this.ready && !this.disabled) {
+ this.imageData = assign({}, this.initialImageData);
+ this.canvasData = assign({}, this.initialCanvasData);
+ this.cropBoxData = assign({}, this.initialCropBoxData);
+ this.renderCanvas();
+ if (this.cropped) {
+ this.renderCropBox();
+ }
+ }
+ return this;
+ },
+ // Clear the crop box
+ clear: function clear() {
+ if (this.cropped && !this.disabled) {
+ assign(this.cropBoxData, {
+ left: 0,
+ top: 0,
+ width: 0,
+ height: 0
+ });
+ this.cropped = false;
+ this.renderCropBox();
+ this.limitCanvas(true, true);
+
+ // Render canvas after crop box rendered
+ this.renderCanvas();
+ removeClass(this.dragBox, CLASS_MODAL);
+ addClass(this.cropBox, CLASS_HIDDEN);
+ }
+ return this;
+ },
+ /**
+ * Replace the image's src and rebuild the cropper
+ * @param {string} url - The new URL.
+ * @param {boolean} [hasSameSize] - Indicate if the new image has the same size as the old one.
+ * @returns {Cropper} this
+ */
+ replace: function replace(url) {
+ var hasSameSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+ if (!this.disabled && url) {
+ if (this.isImg) {
+ this.element.src = url;
+ }
+ if (hasSameSize) {
+ this.url = url;
+ this.image.src = url;
+ if (this.ready) {
+ this.viewBoxImage.src = url;
+ forEach(this.previews, function (element) {
+ element.getElementsByTagName('img')[0].src = url;
+ });
+ }
+ } else {
+ if (this.isImg) {
+ this.replaced = true;
+ }
+ this.options.data = null;
+ this.uncreate();
+ this.load(url);
+ }
+ }
+ return this;
+ },
+ // Enable (unfreeze) the cropper
+ enable: function enable() {
+ if (this.ready && this.disabled) {
+ this.disabled = false;
+ removeClass(this.cropper, CLASS_DISABLED);
+ }
+ return this;
+ },
+ // Disable (freeze) the cropper
+ disable: function disable() {
+ if (this.ready && !this.disabled) {
+ this.disabled = true;
+ addClass(this.cropper, CLASS_DISABLED);
+ }
+ return this;
+ },
+ /**
+ * Destroy the cropper and remove the instance from the image
+ * @returns {Cropper} this
+ */
+ destroy: function destroy() {
+ var element = this.element;
+ if (!element[NAMESPACE]) {
+ return this;
+ }
+ element[NAMESPACE] = undefined;
+ if (this.isImg && this.replaced) {
+ element.src = this.originalUrl;
+ }
+ this.uncreate();
+ return this;
+ },
+ /**
+ * Move the canvas with relative offsets
+ * @param {number} offsetX - The relative offset distance on the x-axis.
+ * @param {number} [offsetY=offsetX] - The relative offset distance on the y-axis.
+ * @returns {Cropper} this
+ */
+ move: function move(offsetX) {
+ var offsetY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : offsetX;
+ var _this$canvasData = this.canvasData,
+ left = _this$canvasData.left,
+ top = _this$canvasData.top;
+ return this.moveTo(isUndefined(offsetX) ? offsetX : left + Number(offsetX), isUndefined(offsetY) ? offsetY : top + Number(offsetY));
+ },
+ /**
+ * Move the canvas to an absolute point
+ * @param {number} x - The x-axis coordinate.
+ * @param {number} [y=x] - The y-axis coordinate.
+ * @returns {Cropper} this
+ */
+ moveTo: function moveTo(x) {
+ var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
+ var canvasData = this.canvasData;
+ var changed = false;
+ x = Number(x);
+ y = Number(y);
+ if (this.ready && !this.disabled && this.options.movable) {
+ if (isNumber(x)) {
+ canvasData.left = x;
+ changed = true;
+ }
+ if (isNumber(y)) {
+ canvasData.top = y;
+ changed = true;
+ }
+ if (changed) {
+ this.renderCanvas(true);
+ }
+ }
+ return this;
+ },
+ /**
+ * Zoom the canvas with a relative ratio
+ * @param {number} ratio - The target ratio.
+ * @param {Event} _originalEvent - The original event if any.
+ * @returns {Cropper} this
+ */
+ zoom: function zoom(ratio, _originalEvent) {
+ var canvasData = this.canvasData;
+ ratio = Number(ratio);
+ if (ratio < 0) {
+ ratio = 1 / (1 - ratio);
+ } else {
+ ratio = 1 + ratio;
+ }
+ return this.zoomTo(canvasData.width * ratio / canvasData.naturalWidth, null, _originalEvent);
+ },
+ /**
+ * Zoom the canvas to an absolute ratio
+ * @param {number} ratio - The target ratio.
+ * @param {Object} pivot - The zoom pivot point coordinate.
+ * @param {Event} _originalEvent - The original event if any.
+ * @returns {Cropper} this
+ */
+ zoomTo: function zoomTo(ratio, pivot, _originalEvent) {
+ var options = this.options,
+ canvasData = this.canvasData;
+ var width = canvasData.width,
+ height = canvasData.height,
+ naturalWidth = canvasData.naturalWidth,
+ naturalHeight = canvasData.naturalHeight;
+ ratio = Number(ratio);
+ if (ratio >= 0 && this.ready && !this.disabled && options.zoomable) {
+ var newWidth = naturalWidth * ratio;
+ var newHeight = naturalHeight * ratio;
+ if (dispatchEvent(this.element, EVENT_ZOOM, {
+ ratio: ratio,
+ oldRatio: width / naturalWidth,
+ originalEvent: _originalEvent
+ }) === false) {
+ return this;
+ }
+ if (_originalEvent) {
+ var pointers = this.pointers;
+ var offset = getOffset(this.cropper);
+ var center = pointers && Object.keys(pointers).length ? getPointersCenter(pointers) : {
+ pageX: _originalEvent.pageX,
+ pageY: _originalEvent.pageY
+ };
+
+ // Zoom from the triggering point of the event
+ canvasData.left -= (newWidth - width) * ((center.pageX - offset.left - canvasData.left) / width);
+ canvasData.top -= (newHeight - height) * ((center.pageY - offset.top - canvasData.top) / height);
+ } else if (isPlainObject(pivot) && isNumber(pivot.x) && isNumber(pivot.y)) {
+ canvasData.left -= (newWidth - width) * ((pivot.x - canvasData.left) / width);
+ canvasData.top -= (newHeight - height) * ((pivot.y - canvasData.top) / height);
+ } else {
+ // Zoom from the center of the canvas
+ canvasData.left -= (newWidth - width) / 2;
+ canvasData.top -= (newHeight - height) / 2;
+ }
+ canvasData.width = newWidth;
+ canvasData.height = newHeight;
+ this.renderCanvas(true);
+ }
+ return this;
+ },
+ /**
+ * Rotate the canvas with a relative degree
+ * @param {number} degree - The rotate degree.
+ * @returns {Cropper} this
+ */
+ rotate: function rotate(degree) {
+ return this.rotateTo((this.imageData.rotate || 0) + Number(degree));
+ },
+ /**
+ * Rotate the canvas to an absolute degree
+ * @param {number} degree - The rotate degree.
+ * @returns {Cropper} this
+ */
+ rotateTo: function rotateTo(degree) {
+ degree = Number(degree);
+ if (isNumber(degree) && this.ready && !this.disabled && this.options.rotatable) {
+ this.imageData.rotate = degree % 360;
+ this.renderCanvas(true, true);
+ }
+ return this;
+ },
+ /**
+ * Scale the image on the x-axis.
+ * @param {number} scaleX - The scale ratio on the x-axis.
+ * @returns {Cropper} this
+ */
+ scaleX: function scaleX(_scaleX) {
+ var scaleY = this.imageData.scaleY;
+ return this.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);
+ },
+ /**
+ * Scale the image on the y-axis.
+ * @param {number} scaleY - The scale ratio on the y-axis.
+ * @returns {Cropper} this
+ */
+ scaleY: function scaleY(_scaleY) {
+ var scaleX = this.imageData.scaleX;
+ return this.scale(isNumber(scaleX) ? scaleX : 1, _scaleY);
+ },
+ /**
+ * Scale the image
+ * @param {number} scaleX - The scale ratio on the x-axis.
+ * @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.
+ * @returns {Cropper} this
+ */
+ scale: function scale(scaleX) {
+ var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
+ var imageData = this.imageData;
+ var transformed = false;
+ scaleX = Number(scaleX);
+ scaleY = Number(scaleY);
+ if (this.ready && !this.disabled && this.options.scalable) {
+ if (isNumber(scaleX)) {
+ imageData.scaleX = scaleX;
+ transformed = true;
+ }
+ if (isNumber(scaleY)) {
+ imageData.scaleY = scaleY;
+ transformed = true;
+ }
+ if (transformed) {
+ this.renderCanvas(true, true);
+ }
+ }
+ return this;
+ },
+ /**
+ * Get the cropped area position and size data (base on the original image)
+ * @param {boolean} [rounded=false] - Indicate if round the data values or not.
+ * @returns {Object} The result cropped data.
+ */
+ getData: function getData() {
+ var rounded = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
+ var options = this.options,
+ imageData = this.imageData,
+ canvasData = this.canvasData,
+ cropBoxData = this.cropBoxData;
+ var data;
+ if (this.ready && this.cropped) {
+ data = {
+ x: cropBoxData.left - canvasData.left,
+ y: cropBoxData.top - canvasData.top,
+ width: cropBoxData.width,
+ height: cropBoxData.height
+ };
+ var ratio = imageData.width / imageData.naturalWidth;
+ forEach(data, function (n, i) {
+ data[i] = n / ratio;
+ });
+ if (rounded) {
+ // In case rounding off leads to extra 1px in right or bottom border
+ // we should round the top-left corner and the dimension (#343).
+ var bottom = Math.round(data.y + data.height);
+ var right = Math.round(data.x + data.width);
+ data.x = Math.round(data.x);
+ data.y = Math.round(data.y);
+ data.width = right - data.x;
+ data.height = bottom - data.y;
+ }
+ } else {
+ data = {
+ x: 0,
+ y: 0,
+ width: 0,
+ height: 0
+ };
+ }
+ if (options.rotatable) {
+ data.rotate = imageData.rotate || 0;
+ }
+ if (options.scalable) {
+ data.scaleX = imageData.scaleX || 1;
+ data.scaleY = imageData.scaleY || 1;
+ }
+ return data;
+ },
+ /**
+ * Set the cropped area position and size with new data
+ * @param {Object} data - The new data.
+ * @returns {Cropper} this
+ */
+ setData: function setData(data) {
+ var options = this.options,
+ imageData = this.imageData,
+ canvasData = this.canvasData;
+ var cropBoxData = {};
+ if (this.ready && !this.disabled && isPlainObject(data)) {
+ var transformed = false;
+ if (options.rotatable) {
+ if (isNumber(data.rotate) && data.rotate !== imageData.rotate) {
+ imageData.rotate = data.rotate;
+ transformed = true;
+ }
+ }
+ if (options.scalable) {
+ if (isNumber(data.scaleX) && data.scaleX !== imageData.scaleX) {
+ imageData.scaleX = data.scaleX;
+ transformed = true;
+ }
+ if (isNumber(data.scaleY) && data.scaleY !== imageData.scaleY) {
+ imageData.scaleY = data.scaleY;
+ transformed = true;
+ }
+ }
+ if (transformed) {
+ this.renderCanvas(true, true);
+ }
+ var ratio = imageData.width / imageData.naturalWidth;
+ if (isNumber(data.x)) {
+ cropBoxData.left = data.x * ratio + canvasData.left;
+ }
+ if (isNumber(data.y)) {
+ cropBoxData.top = data.y * ratio + canvasData.top;
+ }
+ if (isNumber(data.width)) {
+ cropBoxData.width = data.width * ratio;
+ }
+ if (isNumber(data.height)) {
+ cropBoxData.height = data.height * ratio;
+ }
+ this.setCropBoxData(cropBoxData);
+ }
+ return this;
+ },
+ /**
+ * Get the container size data.
+ * @returns {Object} The result container data.
+ */
+ getContainerData: function getContainerData() {
+ return this.ready ? assign({}, this.containerData) : {};
+ },
+ /**
+ * Get the image position and size data.
+ * @returns {Object} The result image data.
+ */
+ getImageData: function getImageData() {
+ return this.sized ? assign({}, this.imageData) : {};
+ },
+ /**
+ * Get the canvas position and size data.
+ * @returns {Object} The result canvas data.
+ */
+ getCanvasData: function getCanvasData() {
+ var canvasData = this.canvasData;
+ var data = {};
+ if (this.ready) {
+ forEach(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (n) {
+ data[n] = canvasData[n];
+ });
+ }
+ return data;
+ },
+ /**
+ * Set the canvas position and size with new data.
+ * @param {Object} data - The new canvas data.
+ * @returns {Cropper} this
+ */
+ setCanvasData: function setCanvasData(data) {
+ var canvasData = this.canvasData;
+ var aspectRatio = canvasData.aspectRatio;
+ if (this.ready && !this.disabled && isPlainObject(data)) {
+ if (isNumber(data.left)) {
+ canvasData.left = data.left;
+ }
+ if (isNumber(data.top)) {
+ canvasData.top = data.top;
+ }
+ if (isNumber(data.width)) {
+ canvasData.width = data.width;
+ canvasData.height = data.width / aspectRatio;
+ } else if (isNumber(data.height)) {
+ canvasData.height = data.height;
+ canvasData.width = data.height * aspectRatio;
+ }
+ this.renderCanvas(true);
+ }
+ return this;
+ },
+ /**
+ * Get the crop box position and size data.
+ * @returns {Object} The result crop box data.
+ */
+ getCropBoxData: function getCropBoxData() {
+ var cropBoxData = this.cropBoxData;
+ var data;
+ if (this.ready && this.cropped) {
+ data = {
+ left: cropBoxData.left,
+ top: cropBoxData.top,
+ width: cropBoxData.width,
+ height: cropBoxData.height
+ };
+ }
+ return data || {};
+ },
+ /**
+ * Set the crop box position and size with new data.
+ * @param {Object} data - The new crop box data.
+ * @returns {Cropper} this
+ */
+ setCropBoxData: function setCropBoxData(data) {
+ var cropBoxData = this.cropBoxData;
+ var aspectRatio = this.options.aspectRatio;
+ var widthChanged;
+ var heightChanged;
+ if (this.ready && this.cropped && !this.disabled && isPlainObject(data)) {
+ if (isNumber(data.left)) {
+ cropBoxData.left = data.left;
+ }
+ if (isNumber(data.top)) {
+ cropBoxData.top = data.top;
+ }
+ if (isNumber(data.width) && data.width !== cropBoxData.width) {
+ widthChanged = true;
+ cropBoxData.width = data.width;
+ }
+ if (isNumber(data.height) && data.height !== cropBoxData.height) {
+ heightChanged = true;
+ cropBoxData.height = data.height;
+ }
+ if (aspectRatio) {
+ if (widthChanged) {
+ cropBoxData.height = cropBoxData.width / aspectRatio;
+ } else if (heightChanged) {
+ cropBoxData.width = cropBoxData.height * aspectRatio;
+ }
+ }
+ this.renderCropBox();
+ }
+ return this;
+ },
+ /**
+ * Get a canvas drawn the cropped image.
+ * @param {Object} [options={}] - The config options.
+ * @returns {HTMLCanvasElement} - The result canvas.
+ */
+ getCroppedCanvas: function getCroppedCanvas() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ if (!this.ready || !window.HTMLCanvasElement) {
+ return null;
+ }
+ var canvasData = this.canvasData;
+ var source = getSourceCanvas(this.image, this.imageData, canvasData, options);
+
+ // Returns the source canvas if it is not cropped.
+ if (!this.cropped) {
+ return source;
+ }
+ var _this$getData = this.getData(options.rounded),
+ initialX = _this$getData.x,
+ initialY = _this$getData.y,
+ initialWidth = _this$getData.width,
+ initialHeight = _this$getData.height;
+ var ratio = source.width / Math.floor(canvasData.naturalWidth);
+ if (ratio !== 1) {
+ initialX *= ratio;
+ initialY *= ratio;
+ initialWidth *= ratio;
+ initialHeight *= ratio;
+ }
+ var aspectRatio = initialWidth / initialHeight;
+ var maxSizes = getAdjustedSizes({
+ aspectRatio: aspectRatio,
+ width: options.maxWidth || Infinity,
+ height: options.maxHeight || Infinity
+ });
+ var minSizes = getAdjustedSizes({
+ aspectRatio: aspectRatio,
+ width: options.minWidth || 0,
+ height: options.minHeight || 0
+ }, 'cover');
+ var _getAdjustedSizes = getAdjustedSizes({
+ aspectRatio: aspectRatio,
+ width: options.width || (ratio !== 1 ? source.width : initialWidth),
+ height: options.height || (ratio !== 1 ? source.height : initialHeight)
+ }),
+ width = _getAdjustedSizes.width,
+ height = _getAdjustedSizes.height;
+ width = Math.min(maxSizes.width, Math.max(minSizes.width, width));
+ height = Math.min(maxSizes.height, Math.max(minSizes.height, height));
+ var canvas = document.createElement('canvas');
+ var context = canvas.getContext('2d');
+ canvas.width = normalizeDecimalNumber(width);
+ canvas.height = normalizeDecimalNumber(height);
+ context.fillStyle = options.fillColor || 'transparent';
+ context.fillRect(0, 0, width, height);
+ var _options$imageSmoothi = options.imageSmoothingEnabled,
+ imageSmoothingEnabled = _options$imageSmoothi === void 0 ? true : _options$imageSmoothi,
+ imageSmoothingQuality = options.imageSmoothingQuality;
+ context.imageSmoothingEnabled = imageSmoothingEnabled;
+ if (imageSmoothingQuality) {
+ context.imageSmoothingQuality = imageSmoothingQuality;
+ }
+
+ // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
+ var sourceWidth = source.width;
+ var sourceHeight = source.height;
+
+ // Source canvas parameters
+ var srcX = initialX;
+ var srcY = initialY;
+ var srcWidth;
+ var srcHeight;
+
+ // Destination canvas parameters
+ var dstX;
+ var dstY;
+ var dstWidth;
+ var dstHeight;
+ if (srcX <= -initialWidth || srcX > sourceWidth) {
+ srcX = 0;
+ srcWidth = 0;
+ dstX = 0;
+ dstWidth = 0;
+ } else if (srcX <= 0) {
+ dstX = -srcX;
+ srcX = 0;
+ srcWidth = Math.min(sourceWidth, initialWidth + srcX);
+ dstWidth = srcWidth;
+ } else if (srcX <= sourceWidth) {
+ dstX = 0;
+ srcWidth = Math.min(initialWidth, sourceWidth - srcX);
+ dstWidth = srcWidth;
+ }
+ if (srcWidth <= 0 || srcY <= -initialHeight || srcY > sourceHeight) {
+ srcY = 0;
+ srcHeight = 0;
+ dstY = 0;
+ dstHeight = 0;
+ } else if (srcY <= 0) {
+ dstY = -srcY;
+ srcY = 0;
+ srcHeight = Math.min(sourceHeight, initialHeight + srcY);
+ dstHeight = srcHeight;
+ } else if (srcY <= sourceHeight) {
+ dstY = 0;
+ srcHeight = Math.min(initialHeight, sourceHeight - srcY);
+ dstHeight = srcHeight;
+ }
+ var params = [srcX, srcY, srcWidth, srcHeight];
+
+ // Avoid "IndexSizeError"
+ if (dstWidth > 0 && dstHeight > 0) {
+ var scale = width / initialWidth;
+ params.push(dstX * scale, dstY * scale, dstWidth * scale, dstHeight * scale);
+ }
+
+ // All the numerical parameters should be integer for `drawImage`
+ // https://github.com/fengyuanchen/cropper/issues/476
+ context.drawImage.apply(context, [source].concat(_toConsumableArray(params.map(function (param) {
+ return Math.floor(normalizeDecimalNumber(param));
+ }))));
+ return canvas;
+ },
+ /**
+ * Change the aspect ratio of the crop box.
+ * @param {number} aspectRatio - The new aspect ratio.
+ * @returns {Cropper} this
+ */
+ setAspectRatio: function setAspectRatio(aspectRatio) {
+ var options = this.options;
+ if (!this.disabled && !isUndefined(aspectRatio)) {
+ // 0 -> NaN
+ options.aspectRatio = Math.max(0, aspectRatio) || NaN;
+ if (this.ready) {
+ this.initCropBox();
+ if (this.cropped) {
+ this.renderCropBox();
+ }
+ }
+ }
+ return this;
+ },
+ /**
+ * Change the drag mode.
+ * @param {string} mode - The new drag mode.
+ * @returns {Cropper} this
+ */
+ setDragMode: function setDragMode(mode) {
+ var options = this.options,
+ dragBox = this.dragBox,
+ face = this.face;
+ if (this.ready && !this.disabled) {
+ var croppable = mode === DRAG_MODE_CROP;
+ var movable = options.movable && mode === DRAG_MODE_MOVE;
+ mode = croppable || movable ? mode : DRAG_MODE_NONE;
+ options.dragMode = mode;
+ setData(dragBox, DATA_ACTION, mode);
+ toggleClass(dragBox, CLASS_CROP, croppable);
+ toggleClass(dragBox, CLASS_MOVE, movable);
+ if (!options.cropBoxMovable) {
+ // Sync drag mode to crop box when it is not movable
+ setData(face, DATA_ACTION, mode);
+ toggleClass(face, CLASS_CROP, croppable);
+ toggleClass(face, CLASS_MOVE, movable);
+ }
+ }
+ return this;
+ }
+ };
+
+ var AnotherCropper = WINDOW.Cropper;
+ var Cropper = /*#__PURE__*/function () {
+ /**
+ * Create a new Cropper.
+ * @param {Element} element - The target element for cropping.
+ * @param {Object} [options={}] - The configuration options.
+ */
+ function Cropper(element) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ _classCallCheck(this, Cropper);
+ if (!element || !REGEXP_TAG_NAME.test(element.tagName)) {
+ throw new Error('The first argument is required and must be an ' + '' + '
' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '' + '
' + '