2972 lines
77 KiB
JavaScript
Executable file
2972 lines
77 KiB
JavaScript
Executable file
/*!
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* Cropper v2.2.5
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* https://github.com/fengyuanchen/cropper
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*
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* Copyright (c) 2014-2016 Fengyuan Chen and contributors
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* Released under the MIT license
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*
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* Date: 2016-01-18T05:42:50.800Z
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*/
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(function (factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as anonymous module.
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define(['jquery'], factory);
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} else if (typeof exports === 'object') {
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// Node / CommonJS
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factory(require('jquery'));
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} else {
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// Browser globals.
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factory(jQuery);
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}
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})(function ($) {
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'use strict';
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// Globals
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var $window = $(window);
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var $document = $(document);
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var location = window.location;
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var ArrayBuffer = window.ArrayBuffer;
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var Uint8Array = window.Uint8Array;
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var DataView = window.DataView;
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var btoa = window.btoa;
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// Constants
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var NAMESPACE = 'cropper';
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// Classes
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var CLASS_MODAL = 'cropper-modal';
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var CLASS_HIDE = 'cropper-hide';
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var CLASS_HIDDEN = 'cropper-hidden';
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var CLASS_INVISIBLE = 'cropper-invisible';
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var CLASS_MOVE = 'cropper-move';
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var CLASS_CROP = 'cropper-crop';
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var CLASS_DISABLED = 'cropper-disabled';
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var CLASS_BG = 'cropper-bg';
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// Events
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var EVENT_MOUSE_DOWN = 'mousedown touchstart pointerdown MSPointerDown';
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var EVENT_MOUSE_MOVE = 'mousemove touchmove pointermove MSPointerMove';
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var EVENT_MOUSE_UP = 'mouseup touchend touchcancel pointerup pointercancel MSPointerUp MSPointerCancel';
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var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
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var EVENT_DBLCLICK = 'dblclick';
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var EVENT_LOAD = 'load.' + NAMESPACE;
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var EVENT_ERROR = 'error.' + NAMESPACE;
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var EVENT_RESIZE = 'resize.' + NAMESPACE; // Bind to window with namespace
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var EVENT_BUILD = 'build.' + NAMESPACE;
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var EVENT_BUILT = 'built.' + NAMESPACE;
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var EVENT_CROP_START = 'cropstart.' + NAMESPACE;
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var EVENT_CROP_MOVE = 'cropmove.' + NAMESPACE;
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var EVENT_CROP_END = 'cropend.' + NAMESPACE;
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var EVENT_CROP = 'crop.' + NAMESPACE;
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var EVENT_ZOOM = 'zoom.' + NAMESPACE;
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// RegExps
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var REGEXP_ACTIONS = /e|w|s|n|se|sw|ne|nw|all|crop|move|zoom/;
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var REGEXP_DATA_URL = /^data\:/;
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var REGEXP_DATA_URL_HEAD = /^data\:([^\;]+)\;base64,/;
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var REGEXP_DATA_URL_JPEG = /^data\:image\/jpeg.*;base64,/;
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// Data keys
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var DATA_PREVIEW = 'preview';
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var DATA_ACTION = 'action';
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// Actions
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var ACTION_EAST = 'e';
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var ACTION_WEST = 'w';
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var ACTION_SOUTH = 's';
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var ACTION_NORTH = 'n';
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var ACTION_SOUTH_EAST = 'se';
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var ACTION_SOUTH_WEST = 'sw';
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var ACTION_NORTH_EAST = 'ne';
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var ACTION_NORTH_WEST = 'nw';
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var ACTION_ALL = 'all';
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var ACTION_CROP = 'crop';
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var ACTION_MOVE = 'move';
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var ACTION_ZOOM = 'zoom';
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var ACTION_NONE = 'none';
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// Supports
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var SUPPORT_CANVAS = $.isFunction($('<canvas>')[0].getContext);
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// Maths
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var num = Number;
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var min = Math.min;
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var max = Math.max;
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var abs = Math.abs;
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var sin = Math.sin;
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var cos = Math.cos;
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var sqrt = Math.sqrt;
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var round = Math.round;
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var floor = Math.floor;
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// Utilities
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var fromCharCode = String.fromCharCode;
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function isNumber(n) {
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return typeof n === 'number' && !isNaN(n);
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}
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function isUndefined(n) {
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return typeof n === 'undefined';
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}
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function toArray(obj, offset) {
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var args = [];
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// This is necessary for IE8
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if (isNumber(offset)) {
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args.push(offset);
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}
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return args.slice.apply(obj, args);
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}
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// Custom proxy to avoid jQuery's guid
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function proxy(fn, context) {
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var args = toArray(arguments, 2);
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return function () {
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return fn.apply(context, args.concat(toArray(arguments)));
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};
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}
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function isCrossOriginURL(url) {
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var parts = url.match(/^(https?:)\/\/([^\:\/\?#]+):?(\d*)/i);
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return parts && (
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parts[1] !== location.protocol ||
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parts[2] !== location.hostname ||
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parts[3] !== location.port
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);
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}
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function addTimestamp(url) {
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var timestamp = 'timestamp=' + (new Date()).getTime();
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return (url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp);
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}
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function getCrossOrigin(crossOrigin) {
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return crossOrigin ? ' crossOrigin="' + crossOrigin + '"' : '';
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}
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function getImageSize(image, callback) {
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var newImage;
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// Modern browsers
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if (image.naturalWidth) {
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return callback(image.naturalWidth, image.naturalHeight);
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}
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// IE8: Don't use `new Image()` here (#319)
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newImage = document.createElement('img');
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newImage.onload = function () {
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callback(this.width, this.height);
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};
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newImage.src = image.src;
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}
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function getTransform(options) {
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var transforms = [];
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var rotate = options.rotate;
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var scaleX = options.scaleX;
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var scaleY = options.scaleY;
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if (isNumber(rotate)) {
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transforms.push('rotate(' + rotate + 'deg)');
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}
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if (isNumber(scaleX) && isNumber(scaleY)) {
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transforms.push('scale(' + scaleX + ',' + scaleY + ')');
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}
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return transforms.length ? transforms.join(' ') : 'none';
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}
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function getRotatedSizes(data, isReversed) {
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var deg = abs(data.degree) % 180;
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var arc = (deg > 90 ? (180 - deg) : deg) * Math.PI / 180;
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var sinArc = sin(arc);
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var cosArc = cos(arc);
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var width = data.width;
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var height = data.height;
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var aspectRatio = data.aspectRatio;
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var newWidth;
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var newHeight;
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if (!isReversed) {
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newWidth = width * cosArc + height * sinArc;
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newHeight = width * sinArc + height * cosArc;
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} else {
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newWidth = width / (cosArc + sinArc / aspectRatio);
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newHeight = newWidth / aspectRatio;
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}
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return {
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width: newWidth,
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height: newHeight
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};
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}
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function getSourceCanvas(image, data) {
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var canvas = $('<canvas>')[0];
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var context = canvas.getContext('2d');
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var x = 0;
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var y = 0;
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var width = data.naturalWidth;
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var height = data.naturalHeight;
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var rotate = data.rotate;
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var scaleX = data.scaleX;
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var scaleY = data.scaleY;
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var scalable = isNumber(scaleX) && isNumber(scaleY) && (scaleX !== 1 || scaleY !== 1);
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var rotatable = isNumber(rotate) && rotate !== 0;
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var advanced = rotatable || scalable;
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var canvasWidth = width;
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var canvasHeight = height;
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var translateX;
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var translateY;
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var rotated;
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if (scalable) {
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translateX = width / 2;
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translateY = height / 2;
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}
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if (rotatable) {
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rotated = getRotatedSizes({
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width: width,
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height: height,
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degree: rotate
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});
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canvasWidth = rotated.width;
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canvasHeight = rotated.height;
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translateX = rotated.width / 2;
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translateY = rotated.height / 2;
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}
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canvas.width = canvasWidth;
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canvas.height = canvasHeight;
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if (advanced) {
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x = -width / 2;
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y = -height / 2;
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context.save();
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context.translate(translateX, translateY);
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}
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if (rotatable) {
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context.rotate(rotate * Math.PI / 180);
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}
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// Should call `scale` after rotated
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if (scalable) {
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context.scale(scaleX, scaleY);
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}
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context.drawImage(image, floor(x), floor(y), floor(width), floor(height));
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if (advanced) {
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context.restore();
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}
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return canvas;
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}
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function getTouchesCenter(touches) {
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var length = touches.length;
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var pageX = 0;
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var pageY = 0;
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if (length) {
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$.each(touches, function (i, touch) {
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pageX += touch.pageX;
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pageY += touch.pageY;
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});
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pageX /= length;
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pageY /= length;
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}
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return {
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pageX: pageX,
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pageY: pageY
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};
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}
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function getStringFromCharCode(dataView, start, length) {
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var str = '';
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var i;
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for (i = start, length += start; i < length; i++) {
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str += fromCharCode(dataView.getUint8(i));
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}
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return str;
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}
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function getOrientation(arrayBuffer) {
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var dataView = new DataView(arrayBuffer);
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var length = dataView.byteLength;
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var orientation;
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var exifIDCode;
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var tiffOffset;
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var firstIFDOffset;
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var littleEndian;
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var endianness;
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var app1Start;
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var ifdStart;
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var offset;
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var i;
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// Only handle JPEG image (start by 0xFFD8)
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if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
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offset = 2;
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while (offset < length) {
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if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
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app1Start = offset;
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break;
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}
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offset++;
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}
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}
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if (app1Start) {
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exifIDCode = app1Start + 4;
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tiffOffset = app1Start + 10;
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if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
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endianness = dataView.getUint16(tiffOffset);
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littleEndian = endianness === 0x4949;
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if (littleEndian || endianness === 0x4D4D /* bigEndian */) {
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if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {
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firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
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if (firstIFDOffset >= 0x00000008) {
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ifdStart = tiffOffset + firstIFDOffset;
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}
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}
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}
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}
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}
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if (ifdStart) {
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length = dataView.getUint16(ifdStart, littleEndian);
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for (i = 0; i < length; i++) {
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offset = ifdStart + i * 12 + 2;
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if (dataView.getUint16(offset, littleEndian) === 0x0112 /* Orientation */) {
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// 8 is the offset of the current tag's value
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offset += 8;
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// Get the original orientation value
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orientation = dataView.getUint16(offset, littleEndian);
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// Override the orientation with the default value: 1
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dataView.setUint16(offset, 1, littleEndian);
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break;
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}
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}
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}
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return orientation;
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}
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function dataURLToArrayBuffer(dataURL) {
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var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
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var binary = atob(base64);
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var length = binary.length;
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var arrayBuffer = new ArrayBuffer(length);
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var dataView = new Uint8Array(arrayBuffer);
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var i;
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for (i = 0; i < length; i++) {
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dataView[i] = binary.charCodeAt(i);
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}
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return arrayBuffer;
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}
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// Only available for JPEG image
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function arrayBufferToDataURL(arrayBuffer) {
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var dataView = new Uint8Array(arrayBuffer);
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var length = dataView.length;
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var base64 = '';
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var i;
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for (i = 0; i < length; i++) {
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base64 += fromCharCode(dataView[i]);
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}
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return 'data:image/jpeg;base64,' + btoa(base64);
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}
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function Cropper(element, options) {
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this.$element = $(element);
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this.options = $.extend({}, Cropper.DEFAULTS, $.isPlainObject(options) && options);
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this.isLoaded = false;
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this.isBuilt = false;
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this.isCompleted = false;
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this.isRotated = false;
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this.isCropped = false;
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this.isDisabled = false;
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this.isReplaced = false;
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this.isLimited = false;
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this.wheeling = false;
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this.isImg = false;
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this.originalUrl = '';
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this.canvas = null;
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this.cropBox = null;
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this.init();
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}
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Cropper.prototype = {
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constructor: Cropper,
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init: function () {
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var $this = this.$element;
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var url;
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if ($this.is('img')) {
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this.isImg = true;
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// Should use `$.fn.attr` here. e.g.: "img/picture.jpg"
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this.originalUrl = url = $this.attr('src');
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// Stop when it's a blank image
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if (!url) {
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return;
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}
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// Should use `$.fn.prop` here. e.g.: "http://example.com/img/picture.jpg"
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url = $this.prop('src');
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} else if ($this.is('canvas') && SUPPORT_CANVAS) {
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url = $this[0].toDataURL();
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}
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this.load(url);
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},
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// A shortcut for triggering custom events
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trigger: function (type, data) {
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var e = $.Event(type, data);
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this.$element.trigger(e);
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return e;
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},
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load: function (url) {
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var options = this.options;
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var $this = this.$element;
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var read;
|
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var xhr;
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if (!url) {
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return;
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}
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|
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// Trigger build event first
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$this.one(EVENT_BUILD, options.build);
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if (this.trigger(EVENT_BUILD).isDefaultPrevented()) {
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return;
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}
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this.url = url;
|
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this.image = {};
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|
|
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if (!options.checkOrientation || !ArrayBuffer) {
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return this.clone();
|
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}
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read = $.proxy(this.read, this);
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|
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// XMLHttpRequest disallows to open a Data URL in some browsers like IE11 and Safari
|
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if (REGEXP_DATA_URL.test(url)) {
|
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return REGEXP_DATA_URL_JPEG.test(url) ?
|
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read(dataURLToArrayBuffer(url)) :
|
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this.clone();
|
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}
|
|
|
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xhr = new XMLHttpRequest();
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|
|
xhr.onerror = xhr.onabort = $.proxy(function () {
|
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this.clone();
|
|
}, this);
|
|
|
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xhr.onload = function () {
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read(this.response);
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};
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xhr.open('get', url);
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xhr.responseType = 'arraybuffer';
|
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xhr.send();
|
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},
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|
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read: function (arrayBuffer) {
|
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var options = this.options;
|
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var orientation = getOrientation(arrayBuffer);
|
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var image = this.image;
|
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var rotate;
|
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var scaleX;
|
|
var scaleY;
|
|
|
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if (orientation > 1) {
|
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this.url = arrayBufferToDataURL(arrayBuffer);
|
|
|
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switch (orientation) {
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// flip horizontal
|
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case 2:
|
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scaleX = -1;
|
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break;
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|
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// rotate left 180°
|
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case 3:
|
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rotate = -180;
|
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break;
|
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|
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// flip vertical
|
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case 4:
|
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scaleY = -1;
|
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break;
|
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|
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// flip vertical + rotate right 90°
|
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case 5:
|
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rotate = 90;
|
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scaleY = -1;
|
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break;
|
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|
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// rotate right 90°
|
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case 6:
|
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rotate = 90;
|
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break;
|
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|
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// flip horizontal + rotate right 90°
|
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case 7:
|
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rotate = 90;
|
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scaleX = -1;
|
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break;
|
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|
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// rotate left 90°
|
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case 8:
|
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rotate = -90;
|
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break;
|
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}
|
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}
|
|
|
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if (options.rotatable) {
|
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image.rotate = rotate;
|
|
}
|
|
|
|
if (options.scalable) {
|
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image.scaleX = scaleX;
|
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image.scaleY = scaleY;
|
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}
|
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|
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this.clone();
|
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},
|
|
|
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clone: function () {
|
|
var options = this.options;
|
|
var $this = this.$element;
|
|
var url = this.url;
|
|
var crossOrigin = '';
|
|
var crossOriginUrl;
|
|
var $clone;
|
|
|
|
if (options.checkCrossOrigin && isCrossOriginURL(url)) {
|
|
crossOrigin = $this.prop('crossOrigin');
|
|
|
|
if (crossOrigin) {
|
|
crossOriginUrl = url;
|
|
} else {
|
|
crossOrigin = 'anonymous';
|
|
|
|
// Bust cache (#148) when there is not a "crossOrigin" property
|
|
crossOriginUrl = addTimestamp(url);
|
|
}
|
|
}
|
|
|
|
this.crossOrigin = crossOrigin;
|
|
this.crossOriginUrl = crossOriginUrl;
|
|
this.$clone = $clone = $('<img' + getCrossOrigin(crossOrigin) + ' src="' + (crossOriginUrl || url) + '">');
|
|
|
|
if (this.isImg) {
|
|
if ($this[0].complete) {
|
|
this.start();
|
|
} else {
|
|
$this.one(EVENT_LOAD, $.proxy(this.start, this));
|
|
}
|
|
} else {
|
|
$clone.
|
|
one(EVENT_LOAD, $.proxy(this.start, this)).
|
|
one(EVENT_ERROR, $.proxy(this.stop, this)).
|
|
addClass(CLASS_HIDE).
|
|
insertAfter($this);
|
|
}
|
|
},
|
|
|
|
start: function () {
|
|
var $image = this.$element;
|
|
var $clone = this.$clone;
|
|
|
|
if (!this.isImg) {
|
|
$clone.off(EVENT_ERROR, this.stop);
|
|
$image = $clone;
|
|
}
|
|
|
|
getImageSize($image[0], $.proxy(function (naturalWidth, naturalHeight) {
|
|
$.extend(this.image, {
|
|
naturalWidth: naturalWidth,
|
|
naturalHeight: naturalHeight,
|
|
aspectRatio: naturalWidth / naturalHeight
|
|
});
|
|
|
|
this.isLoaded = true;
|
|
this.build();
|
|
}, this));
|
|
},
|
|
|
|
stop: function () {
|
|
this.$clone.remove();
|
|
this.$clone = null;
|
|
},
|
|
|
|
build: function () {
|
|
var options = this.options;
|
|
var $this = this.$element;
|
|
var $clone = this.$clone;
|
|
var $cropper;
|
|
var $cropBox;
|
|
var $face;
|
|
|
|
if (!this.isLoaded) {
|
|
return;
|
|
}
|
|
|
|
// Unbuild first when replace
|
|
if (this.isBuilt) {
|
|
this.unbuild();
|
|
}
|
|
|
|
// Create cropper elements
|
|
this.$container = $this.parent();
|
|
this.$cropper = $cropper = $(Cropper.TEMPLATE);
|
|
this.$canvas = $cropper.find('.cropper-canvas').append($clone);
|
|
this.$dragBox = $cropper.find('.cropper-drag-box');
|
|
this.$cropBox = $cropBox = $cropper.find('.cropper-crop-box');
|
|
this.$viewBox = $cropper.find('.cropper-view-box');
|
|
this.$face = $face = $cropBox.find('.cropper-face');
|
|
|
|
// Hide the original image
|
|
$this.addClass(CLASS_HIDDEN).after($cropper);
|
|
|
|
// Show the clone image if is hidden
|
|
if (!this.isImg) {
|
|
$clone.removeClass(CLASS_HIDE);
|
|
}
|
|
|
|
this.initPreview();
|
|
this.bind();
|
|
|
|
options.aspectRatio = max(0, options.aspectRatio) || NaN;
|
|
options.viewMode = max(0, min(3, round(options.viewMode))) || 0;
|
|
|
|
if (options.autoCrop) {
|
|
this.isCropped = true;
|
|
|
|
if (options.modal) {
|
|
this.$dragBox.addClass(CLASS_MODAL);
|
|
}
|
|
} else {
|
|
$cropBox.addClass(CLASS_HIDDEN);
|
|
}
|
|
|
|
if (!options.guides) {
|
|
$cropBox.find('.cropper-dashed').addClass(CLASS_HIDDEN);
|
|
}
|
|
|
|
if (!options.center) {
|
|
$cropBox.find('.cropper-center').addClass(CLASS_HIDDEN);
|
|
}
|
|
|
|
if (options.cropBoxMovable) {
|
|
$face.addClass(CLASS_MOVE).data(DATA_ACTION, ACTION_ALL);
|
|
}
|
|
|
|
if (!options.highlight) {
|
|
$face.addClass(CLASS_INVISIBLE);
|
|
}
|
|
|
|
if (options.background) {
|
|
$cropper.addClass(CLASS_BG);
|
|
}
|
|
|
|
if (!options.cropBoxResizable) {
|
|
$cropBox.find('.cropper-line, .cropper-point').addClass(CLASS_HIDDEN);
|
|
}
|
|
|
|
this.setDragMode(options.dragMode);
|
|
this.render();
|
|
this.isBuilt = true;
|
|
this.setData(options.data);
|
|
$this.one(EVENT_BUILT, options.built);
|
|
|
|
// Trigger the built event asynchronously to keep `data('cropper')` is defined
|
|
setTimeout($.proxy(function () {
|
|
this.trigger(EVENT_BUILT);
|
|
this.isCompleted = true;
|
|
}, this), 0);
|
|
},
|
|
|
|
unbuild: function () {
|
|
if (!this.isBuilt) {
|
|
return;
|
|
}
|
|
|
|
this.isBuilt = false;
|
|
this.isCompleted = false;
|
|
this.initialImage = null;
|
|
|
|
// Clear `initialCanvas` is necessary when replace
|
|
this.initialCanvas = null;
|
|
this.initialCropBox = null;
|
|
this.container = null;
|
|
this.canvas = null;
|
|
|
|
// Clear `cropBox` is necessary when replace
|
|
this.cropBox = null;
|
|
this.unbind();
|
|
|
|
this.resetPreview();
|
|
this.$preview = null;
|
|
|
|
this.$viewBox = null;
|
|
this.$cropBox = null;
|
|
this.$dragBox = null;
|
|
this.$canvas = null;
|
|
this.$container = null;
|
|
|
|
this.$cropper.remove();
|
|
this.$cropper = null;
|
|
},
|
|
|
|
render: function () {
|
|
this.initContainer();
|
|
this.initCanvas();
|
|
this.initCropBox();
|
|
|
|
this.renderCanvas();
|
|
|
|
if (this.isCropped) {
|
|
this.renderCropBox();
|
|
}
|
|
},
|
|
|
|
initContainer: function () {
|
|
var options = this.options;
|
|
var $this = this.$element;
|
|
var $container = this.$container;
|
|
var $cropper = this.$cropper;
|
|
|
|
$cropper.addClass(CLASS_HIDDEN);
|
|
$this.removeClass(CLASS_HIDDEN);
|
|
|
|
$cropper.css((this.container = {
|
|
width: max($container.width(), num(options.minContainerWidth) || 200),
|
|
height: max($container.height(), num(options.minContainerHeight) || 100)
|
|
}));
|
|
|
|
$this.addClass(CLASS_HIDDEN);
|
|
$cropper.removeClass(CLASS_HIDDEN);
|
|
},
|
|
|
|
// Canvas (image wrapper)
|
|
initCanvas: function () {
|
|
var viewMode = this.options.viewMode;
|
|
var container = this.container;
|
|
var containerWidth = container.width;
|
|
var containerHeight = container.height;
|
|
var image = this.image;
|
|
var imageNaturalWidth = image.naturalWidth;
|
|
var imageNaturalHeight = image.naturalHeight;
|
|
var is90Degree = abs(image.rotate) === 90;
|
|
var naturalWidth = is90Degree ? imageNaturalHeight : imageNaturalWidth;
|
|
var naturalHeight = is90Degree ? imageNaturalWidth : imageNaturalHeight;
|
|
var aspectRatio = naturalWidth / naturalHeight;
|
|
var canvasWidth = containerWidth;
|
|
var canvasHeight = containerHeight;
|
|
var canvas;
|
|
|
|
if (containerHeight * aspectRatio > containerWidth) {
|
|
if (viewMode === 3) {
|
|
canvasWidth = containerHeight * aspectRatio;
|
|
} else {
|
|
canvasHeight = containerWidth / aspectRatio;
|
|
}
|
|
} else {
|
|
if (viewMode === 3) {
|
|
canvasHeight = containerWidth / aspectRatio;
|
|
} else {
|
|
canvasWidth = containerHeight * aspectRatio;
|
|
}
|
|
}
|
|
|
|
canvas = {
|
|
naturalWidth: naturalWidth,
|
|
naturalHeight: naturalHeight,
|
|
aspectRatio: aspectRatio,
|
|
width: canvasWidth,
|
|
height: canvasHeight
|
|
};
|
|
|
|
canvas.oldLeft = canvas.left = (containerWidth - canvasWidth) / 2;
|
|
canvas.oldTop = canvas.top = (containerHeight - canvasHeight) / 2;
|
|
|
|
this.canvas = canvas;
|
|
this.isLimited = (viewMode === 1 || viewMode === 2);
|
|
this.limitCanvas(true, true);
|
|
this.initialImage = $.extend({}, image);
|
|
this.initialCanvas = $.extend({}, canvas);
|
|
},
|
|
|
|
limitCanvas: function (isSizeLimited, isPositionLimited) {
|
|
var options = this.options;
|
|
var viewMode = options.viewMode;
|
|
var container = this.container;
|
|
var containerWidth = container.width;
|
|
var containerHeight = container.height;
|
|
var canvas = this.canvas;
|
|
var aspectRatio = canvas.aspectRatio;
|
|
var cropBox = this.cropBox;
|
|
var isCropped = this.isCropped && cropBox;
|
|
var minCanvasWidth;
|
|
var minCanvasHeight;
|
|
var newCanvasLeft;
|
|
var newCanvasTop;
|
|
|
|
if (isSizeLimited) {
|
|
minCanvasWidth = num(options.minCanvasWidth) || 0;
|
|
minCanvasHeight = num(options.minCanvasHeight) || 0;
|
|
|
|
if (viewMode) {
|
|
if (viewMode > 1) {
|
|
minCanvasWidth = max(minCanvasWidth, containerWidth);
|
|
minCanvasHeight = max(minCanvasHeight, containerHeight);
|
|
|
|
if (viewMode === 3) {
|
|
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
|
|
minCanvasWidth = minCanvasHeight * aspectRatio;
|
|
} else {
|
|
minCanvasHeight = minCanvasWidth / aspectRatio;
|
|
}
|
|
}
|
|
} else {
|
|
if (minCanvasWidth) {
|
|
minCanvasWidth = max(minCanvasWidth, isCropped ? cropBox.width : 0);
|
|
} else if (minCanvasHeight) {
|
|
minCanvasHeight = max(minCanvasHeight, isCropped ? cropBox.height : 0);
|
|
} else if (isCropped) {
|
|
minCanvasWidth = cropBox.width;
|
|
minCanvasHeight = cropBox.height;
|
|
|
|
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
|
|
minCanvasWidth = minCanvasHeight * aspectRatio;
|
|
} else {
|
|
minCanvasHeight = minCanvasWidth / aspectRatio;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (minCanvasWidth && minCanvasHeight) {
|
|
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
|
|
minCanvasHeight = minCanvasWidth / aspectRatio;
|
|
} else {
|
|
minCanvasWidth = minCanvasHeight * aspectRatio;
|
|
}
|
|
} else if (minCanvasWidth) {
|
|
minCanvasHeight = minCanvasWidth / aspectRatio;
|
|
} else if (minCanvasHeight) {
|
|
minCanvasWidth = minCanvasHeight * aspectRatio;
|
|
}
|
|
|
|
canvas.minWidth = minCanvasWidth;
|
|
canvas.minHeight = minCanvasHeight;
|
|
canvas.maxWidth = Infinity;
|
|
canvas.maxHeight = Infinity;
|
|
}
|
|
|
|
if (isPositionLimited) {
|
|
if (viewMode) {
|
|
newCanvasLeft = containerWidth - canvas.width;
|
|
newCanvasTop = containerHeight - canvas.height;
|
|
|
|
canvas.minLeft = min(0, newCanvasLeft);
|
|
canvas.minTop = min(0, newCanvasTop);
|
|
canvas.maxLeft = max(0, newCanvasLeft);
|
|
canvas.maxTop = max(0, newCanvasTop);
|
|
|
|
if (isCropped && this.isLimited) {
|
|
canvas.minLeft = min(
|
|
cropBox.left,
|
|
cropBox.left + cropBox.width - canvas.width
|
|
);
|
|
canvas.minTop = min(
|
|
cropBox.top,
|
|
cropBox.top + cropBox.height - canvas.height
|
|
);
|
|
canvas.maxLeft = cropBox.left;
|
|
canvas.maxTop = cropBox.top;
|
|
|
|
if (viewMode === 2) {
|
|
if (canvas.width >= containerWidth) {
|
|
canvas.minLeft = min(0, newCanvasLeft);
|
|
canvas.maxLeft = max(0, newCanvasLeft);
|
|
}
|
|
|
|
if (canvas.height >= containerHeight) {
|
|
canvas.minTop = min(0, newCanvasTop);
|
|
canvas.maxTop = max(0, newCanvasTop);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
canvas.minLeft = -canvas.width;
|
|
canvas.minTop = -canvas.height;
|
|
canvas.maxLeft = containerWidth;
|
|
canvas.maxTop = containerHeight;
|
|
}
|
|
}
|
|
},
|
|
|
|
renderCanvas: function (isChanged) {
|
|
var canvas = this.canvas;
|
|
var image = this.image;
|
|
var rotate = image.rotate;
|
|
var naturalWidth = image.naturalWidth;
|
|
var naturalHeight = image.naturalHeight;
|
|
var aspectRatio;
|
|
var rotated;
|
|
|
|
if (this.isRotated) {
|
|
this.isRotated = false;
|
|
|
|
// Computes rotated sizes with image sizes
|
|
rotated = getRotatedSizes({
|
|
width: image.width,
|
|
height: image.height,
|
|
degree: rotate
|
|
});
|
|
|
|
aspectRatio = rotated.width / rotated.height;
|
|
|
|
if (aspectRatio !== canvas.aspectRatio) {
|
|
canvas.left -= (rotated.width - canvas.width) / 2;
|
|
canvas.top -= (rotated.height - canvas.height) / 2;
|
|
canvas.width = rotated.width;
|
|
canvas.height = rotated.height;
|
|
canvas.aspectRatio = aspectRatio;
|
|
canvas.naturalWidth = naturalWidth;
|
|
canvas.naturalHeight = naturalHeight;
|
|
|
|
// Computes rotated sizes with natural image sizes
|
|
if (rotate % 180) {
|
|
rotated = getRotatedSizes({
|
|
width: naturalWidth,
|
|
height: naturalHeight,
|
|
degree: rotate
|
|
});
|
|
|
|
canvas.naturalWidth = rotated.width;
|
|
canvas.naturalHeight = rotated.height;
|
|
}
|
|
|
|
this.limitCanvas(true, false);
|
|
}
|
|
}
|
|
|
|
if (canvas.width > canvas.maxWidth || canvas.width < canvas.minWidth) {
|
|
canvas.left = canvas.oldLeft;
|
|
}
|
|
|
|
if (canvas.height > canvas.maxHeight || canvas.height < canvas.minHeight) {
|
|
canvas.top = canvas.oldTop;
|
|
}
|
|
|
|
canvas.width = min(max(canvas.width, canvas.minWidth), canvas.maxWidth);
|
|
canvas.height = min(max(canvas.height, canvas.minHeight), canvas.maxHeight);
|
|
|
|
this.limitCanvas(false, true);
|
|
|
|
canvas.oldLeft = canvas.left = min(max(canvas.left, canvas.minLeft), canvas.maxLeft);
|
|
canvas.oldTop = canvas.top = min(max(canvas.top, canvas.minTop), canvas.maxTop);
|
|
|
|
this.$canvas.css({
|
|
width: canvas.width,
|
|
height: canvas.height,
|
|
left: canvas.left,
|
|
top: canvas.top
|
|
});
|
|
|
|
this.renderImage();
|
|
|
|
if (this.isCropped && this.isLimited) {
|
|
this.limitCropBox(true, true);
|
|
}
|
|
|
|
if (isChanged) {
|
|
this.output();
|
|
}
|
|
},
|
|
|
|
renderImage: function (isChanged) {
|
|
var canvas = this.canvas;
|
|
var image = this.image;
|
|
var reversed;
|
|
|
|
if (image.rotate) {
|
|
reversed = getRotatedSizes({
|
|
width: canvas.width,
|
|
height: canvas.height,
|
|
degree: image.rotate,
|
|
aspectRatio: image.aspectRatio
|
|
}, true);
|
|
}
|
|
|
|
$.extend(image, reversed ? {
|
|
width: reversed.width,
|
|
height: reversed.height,
|
|
left: (canvas.width - reversed.width) / 2,
|
|
top: (canvas.height - reversed.height) / 2
|
|
} : {
|
|
width: canvas.width,
|
|
height: canvas.height,
|
|
left: 0,
|
|
top: 0
|
|
});
|
|
|
|
this.$clone.css({
|
|
width: image.width,
|
|
height: image.height,
|
|
marginLeft: image.left,
|
|
marginTop: image.top,
|
|
transform: getTransform(image)
|
|
});
|
|
|
|
if (isChanged) {
|
|
this.output();
|
|
}
|
|
},
|
|
|
|
initCropBox: function () {
|
|
var options = this.options;
|
|
var canvas = this.canvas;
|
|
var aspectRatio = options.aspectRatio;
|
|
var autoCropArea = num(options.autoCropArea) || 0.8;
|
|
var cropBox = {
|
|
width: canvas.width,
|
|
height: canvas.height
|
|
};
|
|
|
|
if (aspectRatio) {
|
|
if (canvas.height * aspectRatio > canvas.width) {
|
|
cropBox.height = cropBox.width / aspectRatio;
|
|
} else {
|
|
cropBox.width = cropBox.height * aspectRatio;
|
|
}
|
|
}
|
|
|
|
this.cropBox = cropBox;
|
|
this.limitCropBox(true, true);
|
|
|
|
// Initialize auto crop area
|
|
cropBox.width = min(max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);
|
|
cropBox.height = min(max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);
|
|
|
|
// The width of auto crop area must large than "minWidth", and the height too. (#164)
|
|
cropBox.width = max(cropBox.minWidth, cropBox.width * autoCropArea);
|
|
cropBox.height = max(cropBox.minHeight, cropBox.height * autoCropArea);
|
|
cropBox.oldLeft = cropBox.left = canvas.left + (canvas.width - cropBox.width) / 2;
|
|
cropBox.oldTop = cropBox.top = canvas.top + (canvas.height - cropBox.height) / 2;
|
|
|
|
this.initialCropBox = $.extend({}, cropBox);
|
|
},
|
|
|
|
limitCropBox: function (isSizeLimited, isPositionLimited) {
|
|
var options = this.options;
|
|
var aspectRatio = options.aspectRatio;
|
|
var container = this.container;
|
|
var containerWidth = container.width;
|
|
var containerHeight = container.height;
|
|
var canvas = this.canvas;
|
|
var cropBox = this.cropBox;
|
|
var isLimited = this.isLimited;
|
|
var minCropBoxWidth;
|
|
var minCropBoxHeight;
|
|
var maxCropBoxWidth;
|
|
var maxCropBoxHeight;
|
|
|
|
if (isSizeLimited) {
|
|
minCropBoxWidth = num(options.minCropBoxWidth) || 0;
|
|
minCropBoxHeight = num(options.minCropBoxHeight) || 0;
|
|
|
|
// The min/maxCropBoxWidth/Height must be less than containerWidth/Height
|
|
minCropBoxWidth = min(minCropBoxWidth, containerWidth);
|
|
minCropBoxHeight = min(minCropBoxHeight, containerHeight);
|
|
maxCropBoxWidth = min(containerWidth, isLimited ? canvas.width : containerWidth);
|
|
maxCropBoxHeight = min(containerHeight, isLimited ? canvas.height : containerHeight);
|
|
|
|
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
|
|
cropBox.minWidth = min(minCropBoxWidth, maxCropBoxWidth);
|
|
cropBox.minHeight = min(minCropBoxHeight, maxCropBoxHeight);
|
|
cropBox.maxWidth = maxCropBoxWidth;
|
|
cropBox.maxHeight = maxCropBoxHeight;
|
|
}
|
|
|
|
if (isPositionLimited) {
|
|
if (isLimited) {
|
|
cropBox.minLeft = max(0, canvas.left);
|
|
cropBox.minTop = max(0, canvas.top);
|
|
cropBox.maxLeft = min(containerWidth, canvas.left + canvas.width) - cropBox.width;
|
|
cropBox.maxTop = min(containerHeight, canvas.top + canvas.height) - cropBox.height;
|
|
} else {
|
|
cropBox.minLeft = 0;
|
|
cropBox.minTop = 0;
|
|
cropBox.maxLeft = containerWidth - cropBox.width;
|
|
cropBox.maxTop = containerHeight - cropBox.height;
|
|
}
|
|
}
|
|
},
|
|
|
|
renderCropBox: function () {
|
|
var options = this.options;
|
|
var container = this.container;
|
|
var containerWidth = container.width;
|
|
var containerHeight = container.height;
|
|
var cropBox = this.cropBox;
|
|
|
|
if (cropBox.width > cropBox.maxWidth || cropBox.width < cropBox.minWidth) {
|
|
cropBox.left = cropBox.oldLeft;
|
|
}
|
|
|
|
if (cropBox.height > cropBox.maxHeight || cropBox.height < cropBox.minHeight) {
|
|
cropBox.top = cropBox.oldTop;
|
|
}
|
|
|
|
cropBox.width = min(max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);
|
|
cropBox.height = min(max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);
|
|
|
|
this.limitCropBox(false, true);
|
|
|
|
cropBox.oldLeft = cropBox.left = min(max(cropBox.left, cropBox.minLeft), cropBox.maxLeft);
|
|
cropBox.oldTop = cropBox.top = min(max(cropBox.top, cropBox.minTop), cropBox.maxTop);
|
|
|
|
if (options.movable && options.cropBoxMovable) {
|
|
|
|
// Turn to move the canvas when the crop box is equal to the container
|
|
this.$face.data(DATA_ACTION, (cropBox.width === containerWidth && cropBox.height === containerHeight) ? ACTION_MOVE : ACTION_ALL);
|
|
}
|
|
|
|
this.$cropBox.css({
|
|
width: cropBox.width,
|
|
height: cropBox.height,
|
|
left: cropBox.left,
|
|
top: cropBox.top
|
|
});
|
|
|
|
if (this.isCropped && this.isLimited) {
|
|
this.limitCanvas(true, true);
|
|
}
|
|
|
|
if (!this.isDisabled) {
|
|
this.output();
|
|
}
|
|
},
|
|
|
|
output: function () {
|
|
this.preview();
|
|
|
|
if (this.isCompleted) {
|
|
this.trigger(EVENT_CROP, this.getData());
|
|
} else if (!this.isBuilt) {
|
|
|
|
// Only trigger one crop event before complete
|
|
this.$element.one(EVENT_BUILT, $.proxy(function () {
|
|
this.trigger(EVENT_CROP, this.getData());
|
|
}, this));
|
|
}
|
|
},
|
|
|
|
initPreview: function () {
|
|
var crossOrigin = getCrossOrigin(this.crossOrigin);
|
|
var url = crossOrigin ? this.crossOriginUrl : this.url;
|
|
|
|
this.$preview = $(this.options.preview);
|
|
this.$viewBox.html('<img' + crossOrigin + ' src="' + url + '">');
|
|
this.$preview.each(function () {
|
|
var $this = $(this);
|
|
|
|
// Save the original size for recover
|
|
$this.data(DATA_PREVIEW, {
|
|
width: $this.width(),
|
|
height: $this.height(),
|
|
html: $this.html()
|
|
});
|
|
|
|
/**
|
|
* Override img element styles
|
|
* Add `display:block` to avoid margin top issue
|
|
* (Occur only when margin-top <= -height)
|
|
*/
|
|
$this.html(
|
|
'<img' + crossOrigin + ' src="' + url + '" style="' +
|
|
'display:block;width:100%;height:auto;' +
|
|
'min-width:0!important;min-height:0!important;' +
|
|
'max-width:none!important;max-height:none!important;' +
|
|
'image-orientation:0deg!important;">'
|
|
);
|
|
});
|
|
},
|
|
|
|
resetPreview: function () {
|
|
this.$preview.each(function () {
|
|
var $this = $(this);
|
|
var data = $this.data(DATA_PREVIEW);
|
|
|
|
$this.css({
|
|
width: data.width,
|
|
height: data.height
|
|
}).html(data.html).removeData(DATA_PREVIEW);
|
|
});
|
|
},
|
|
|
|
preview: function () {
|
|
var image = this.image;
|
|
var canvas = this.canvas;
|
|
var cropBox = this.cropBox;
|
|
var cropBoxWidth = cropBox.width;
|
|
var cropBoxHeight = cropBox.height;
|
|
var width = image.width;
|
|
var height = image.height;
|
|
var left = cropBox.left - canvas.left - image.left;
|
|
var top = cropBox.top - canvas.top - image.top;
|
|
|
|
if (!this.isCropped || this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
this.$viewBox.find('img').css({
|
|
width: width,
|
|
height: height,
|
|
marginLeft: -left,
|
|
marginTop: -top,
|
|
transform: getTransform(image)
|
|
});
|
|
|
|
this.$preview.each(function () {
|
|
var $this = $(this);
|
|
var data = $this.data(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;
|
|
}
|
|
|
|
$this.css({
|
|
width: newWidth,
|
|
height: newHeight
|
|
}).find('img').css({
|
|
width: width * ratio,
|
|
height: height * ratio,
|
|
marginLeft: -left * ratio,
|
|
marginTop: -top * ratio,
|
|
transform: getTransform(image)
|
|
});
|
|
});
|
|
},
|
|
|
|
bind: function () {
|
|
var options = this.options;
|
|
var $this = this.$element;
|
|
var $cropper = this.$cropper;
|
|
|
|
if ($.isFunction(options.cropstart)) {
|
|
$this.on(EVENT_CROP_START, options.cropstart);
|
|
}
|
|
|
|
if ($.isFunction(options.cropmove)) {
|
|
$this.on(EVENT_CROP_MOVE, options.cropmove);
|
|
}
|
|
|
|
if ($.isFunction(options.cropend)) {
|
|
$this.on(EVENT_CROP_END, options.cropend);
|
|
}
|
|
|
|
if ($.isFunction(options.crop)) {
|
|
$this.on(EVENT_CROP, options.crop);
|
|
}
|
|
|
|
if ($.isFunction(options.zoom)) {
|
|
$this.on(EVENT_ZOOM, options.zoom);
|
|
}
|
|
|
|
$cropper.on(EVENT_MOUSE_DOWN, $.proxy(this.cropStart, this));
|
|
|
|
if (options.zoomable && options.zoomOnWheel) {
|
|
$cropper.on(EVENT_WHEEL, $.proxy(this.wheel, this));
|
|
}
|
|
|
|
if (options.toggleDragModeOnDblclick) {
|
|
$cropper.on(EVENT_DBLCLICK, $.proxy(this.dblclick, this));
|
|
}
|
|
|
|
$document.
|
|
on(EVENT_MOUSE_MOVE, (this._cropMove = proxy(this.cropMove, this))).
|
|
on(EVENT_MOUSE_UP, (this._cropEnd = proxy(this.cropEnd, this)));
|
|
|
|
if (options.responsive) {
|
|
$window.on(EVENT_RESIZE, (this._resize = proxy(this.resize, this)));
|
|
}
|
|
},
|
|
|
|
unbind: function () {
|
|
var options = this.options;
|
|
var $this = this.$element;
|
|
var $cropper = this.$cropper;
|
|
|
|
if ($.isFunction(options.cropstart)) {
|
|
$this.off(EVENT_CROP_START, options.cropstart);
|
|
}
|
|
|
|
if ($.isFunction(options.cropmove)) {
|
|
$this.off(EVENT_CROP_MOVE, options.cropmove);
|
|
}
|
|
|
|
if ($.isFunction(options.cropend)) {
|
|
$this.off(EVENT_CROP_END, options.cropend);
|
|
}
|
|
|
|
if ($.isFunction(options.crop)) {
|
|
$this.off(EVENT_CROP, options.crop);
|
|
}
|
|
|
|
if ($.isFunction(options.zoom)) {
|
|
$this.off(EVENT_ZOOM, options.zoom);
|
|
}
|
|
|
|
$cropper.off(EVENT_MOUSE_DOWN, this.cropStart);
|
|
|
|
if (options.zoomable && options.zoomOnWheel) {
|
|
$cropper.off(EVENT_WHEEL, this.wheel);
|
|
}
|
|
|
|
if (options.toggleDragModeOnDblclick) {
|
|
$cropper.off(EVENT_DBLCLICK, this.dblclick);
|
|
}
|
|
|
|
$document.
|
|
off(EVENT_MOUSE_MOVE, this._cropMove).
|
|
off(EVENT_MOUSE_UP, this._cropEnd);
|
|
|
|
if (options.responsive) {
|
|
$window.off(EVENT_RESIZE, this._resize);
|
|
}
|
|
},
|
|
|
|
resize: function () {
|
|
var restore = this.options.restore;
|
|
var $container = this.$container;
|
|
var container = this.container;
|
|
var canvasData;
|
|
var cropBoxData;
|
|
var ratio;
|
|
|
|
// Check `container` is necessary for IE8
|
|
if (this.isDisabled || !container) {
|
|
return;
|
|
}
|
|
|
|
ratio = $container.width() / container.width;
|
|
|
|
// Resize when width changed or height changed
|
|
if (ratio !== 1 || $container.height() !== container.height) {
|
|
if (restore) {
|
|
canvasData = this.getCanvasData();
|
|
cropBoxData = this.getCropBoxData();
|
|
}
|
|
|
|
this.render();
|
|
|
|
if (restore) {
|
|
this.setCanvasData($.each(canvasData, function (i, n) {
|
|
canvasData[i] = n * ratio;
|
|
}));
|
|
this.setCropBoxData($.each(cropBoxData, function (i, n) {
|
|
cropBoxData[i] = n * ratio;
|
|
}));
|
|
}
|
|
}
|
|
},
|
|
|
|
dblclick: function () {
|
|
if (this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
if (this.$dragBox.hasClass(CLASS_CROP)) {
|
|
this.setDragMode(ACTION_MOVE);
|
|
} else {
|
|
this.setDragMode(ACTION_CROP);
|
|
}
|
|
},
|
|
|
|
wheel: function (event) {
|
|
var e = event.originalEvent || event;
|
|
var ratio = num(this.options.wheelZoomRatio) || 0.1;
|
|
var delta = 1;
|
|
|
|
if (this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
event.preventDefault();
|
|
|
|
// Limit wheel speed to prevent zoom too fast
|
|
if (this.wheeling) {
|
|
return;
|
|
}
|
|
|
|
this.wheeling = true;
|
|
|
|
setTimeout($.proxy(function () {
|
|
this.wheeling = false;
|
|
}, this), 50);
|
|
|
|
if (e.deltaY) {
|
|
delta = e.deltaY > 0 ? 1 : -1;
|
|
} else if (e.wheelDelta) {
|
|
delta = -e.wheelDelta / 120;
|
|
} else if (e.detail) {
|
|
delta = e.detail > 0 ? 1 : -1;
|
|
}
|
|
|
|
this.zoom(-delta * ratio, event);
|
|
},
|
|
|
|
cropStart: function (event) {
|
|
var options = this.options;
|
|
var originalEvent = event.originalEvent;
|
|
var touches = originalEvent && originalEvent.touches;
|
|
var e = event;
|
|
var touchesLength;
|
|
var action;
|
|
|
|
if (this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
if (touches) {
|
|
touchesLength = touches.length;
|
|
|
|
if (touchesLength > 1) {
|
|
if (options.zoomable && options.zoomOnTouch && touchesLength === 2) {
|
|
e = touches[1];
|
|
this.startX2 = e.pageX;
|
|
this.startY2 = e.pageY;
|
|
action = ACTION_ZOOM;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
e = touches[0];
|
|
}
|
|
|
|
action = action || $(e.target).data(DATA_ACTION);
|
|
|
|
if (REGEXP_ACTIONS.test(action)) {
|
|
if (this.trigger(EVENT_CROP_START, {
|
|
originalEvent: originalEvent,
|
|
action: action
|
|
}).isDefaultPrevented()) {
|
|
return;
|
|
}
|
|
|
|
event.preventDefault();
|
|
|
|
this.action = action;
|
|
this.cropping = false;
|
|
|
|
// IE8 has `event.pageX/Y`, but not `event.originalEvent.pageX/Y`
|
|
// IE10 has `event.originalEvent.pageX/Y`, but not `event.pageX/Y`
|
|
this.startX = e.pageX || originalEvent && originalEvent.pageX;
|
|
this.startY = e.pageY || originalEvent && originalEvent.pageY;
|
|
|
|
if (action === ACTION_CROP) {
|
|
this.cropping = true;
|
|
this.$dragBox.addClass(CLASS_MODAL);
|
|
}
|
|
}
|
|
},
|
|
|
|
cropMove: function (event) {
|
|
var options = this.options;
|
|
var originalEvent = event.originalEvent;
|
|
var touches = originalEvent && originalEvent.touches;
|
|
var e = event;
|
|
var action = this.action;
|
|
var touchesLength;
|
|
|
|
if (this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
if (touches) {
|
|
touchesLength = touches.length;
|
|
|
|
if (touchesLength > 1) {
|
|
if (options.zoomable && options.zoomOnTouch && touchesLength === 2) {
|
|
e = touches[1];
|
|
this.endX2 = e.pageX;
|
|
this.endY2 = e.pageY;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
e = touches[0];
|
|
}
|
|
|
|
if (action) {
|
|
if (this.trigger(EVENT_CROP_MOVE, {
|
|
originalEvent: originalEvent,
|
|
action: action
|
|
}).isDefaultPrevented()) {
|
|
return;
|
|
}
|
|
|
|
event.preventDefault();
|
|
|
|
this.endX = e.pageX || originalEvent && originalEvent.pageX;
|
|
this.endY = e.pageY || originalEvent && originalEvent.pageY;
|
|
|
|
this.change(e.shiftKey, action === ACTION_ZOOM ? event : null);
|
|
}
|
|
},
|
|
|
|
cropEnd: function (event) {
|
|
var originalEvent = event.originalEvent;
|
|
var action = this.action;
|
|
|
|
if (this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
if (action) {
|
|
event.preventDefault();
|
|
|
|
if (this.cropping) {
|
|
this.cropping = false;
|
|
this.$dragBox.toggleClass(CLASS_MODAL, this.isCropped && this.options.modal);
|
|
}
|
|
|
|
this.action = '';
|
|
|
|
this.trigger(EVENT_CROP_END, {
|
|
originalEvent: originalEvent,
|
|
action: action
|
|
});
|
|
}
|
|
},
|
|
|
|
change: function (shiftKey, event) {
|
|
var options = this.options;
|
|
var aspectRatio = options.aspectRatio;
|
|
var action = this.action;
|
|
var container = this.container;
|
|
var canvas = this.canvas;
|
|
var cropBox = this.cropBox;
|
|
var width = cropBox.width;
|
|
var height = cropBox.height;
|
|
var left = cropBox.left;
|
|
var top = cropBox.top;
|
|
var right = left + width;
|
|
var bottom = top + height;
|
|
var minLeft = 0;
|
|
var minTop = 0;
|
|
var maxWidth = container.width;
|
|
var maxHeight = container.height;
|
|
var renderable = true;
|
|
var offset;
|
|
var range;
|
|
|
|
// Locking aspect ratio in "free mode" by holding shift key (#259)
|
|
if (!aspectRatio && shiftKey) {
|
|
aspectRatio = width && height ? width / height : 1;
|
|
}
|
|
|
|
if (this.limited) {
|
|
minLeft = cropBox.minLeft;
|
|
minTop = cropBox.minTop;
|
|
maxWidth = minLeft + min(container.width, canvas.width);
|
|
maxHeight = minTop + min(container.height, canvas.height);
|
|
}
|
|
|
|
range = {
|
|
x: this.endX - this.startX,
|
|
y: this.endY - this.startY
|
|
};
|
|
|
|
if (aspectRatio) {
|
|
range.X = range.y * aspectRatio;
|
|
range.Y = range.x / aspectRatio;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
width += range.x;
|
|
|
|
if (aspectRatio) {
|
|
height = width / aspectRatio;
|
|
top -= range.Y / 2;
|
|
}
|
|
|
|
if (width < 0) {
|
|
action = ACTION_WEST;
|
|
width = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH:
|
|
if (range.y <= 0 && (top <= minTop || aspectRatio &&
|
|
(left <= minLeft || right >= maxWidth))) {
|
|
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
height -= range.y;
|
|
top += range.y;
|
|
|
|
if (aspectRatio) {
|
|
width = height * aspectRatio;
|
|
left += range.X / 2;
|
|
}
|
|
|
|
if (height < 0) {
|
|
action = ACTION_SOUTH;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_WEST:
|
|
if (range.x <= 0 && (left <= minLeft || aspectRatio &&
|
|
(top <= minTop || bottom >= maxHeight))) {
|
|
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
width -= range.x;
|
|
left += range.x;
|
|
|
|
if (aspectRatio) {
|
|
height = width / aspectRatio;
|
|
top += range.Y / 2;
|
|
}
|
|
|
|
if (width < 0) {
|
|
action = ACTION_EAST;
|
|
width = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH:
|
|
if (range.y >= 0 && (bottom >= maxHeight || aspectRatio &&
|
|
(left <= minLeft || right >= maxWidth))) {
|
|
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
height += range.y;
|
|
|
|
if (aspectRatio) {
|
|
width = height * aspectRatio;
|
|
left -= range.X / 2;
|
|
}
|
|
|
|
if (height < 0) {
|
|
action = ACTION_NORTH;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH_EAST:
|
|
if (aspectRatio) {
|
|
if (range.y <= 0 && (top <= minTop || right >= maxWidth)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
height -= range.y;
|
|
top += range.y;
|
|
width = height * aspectRatio;
|
|
} else {
|
|
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 = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_NORTH_WEST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_SOUTH_EAST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH_WEST:
|
|
if (aspectRatio) {
|
|
if (range.y <= 0 && (top <= minTop || left <= minLeft)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
height -= range.y;
|
|
top += range.y;
|
|
width = height * aspectRatio;
|
|
left += range.X;
|
|
} else {
|
|
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 = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_NORTH_EAST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_SOUTH_WEST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH_WEST:
|
|
if (aspectRatio) {
|
|
if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
width -= range.x;
|
|
left += range.x;
|
|
height = width / aspectRatio;
|
|
} else {
|
|
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 = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_SOUTH_EAST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_NORTH_WEST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH_EAST:
|
|
if (aspectRatio) {
|
|
if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
width += range.x;
|
|
height = width / aspectRatio;
|
|
} else {
|
|
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 = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_SOUTH_WEST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_NORTH_EAST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
// Move canvas
|
|
case ACTION_MOVE:
|
|
this.move(range.x, range.y);
|
|
renderable = false;
|
|
break;
|
|
|
|
// Zoom canvas
|
|
case ACTION_ZOOM:
|
|
this.zoom((function (x1, y1, x2, y2) {
|
|
var z1 = sqrt(x1 * x1 + y1 * y1);
|
|
var z2 = sqrt(x2 * x2 + y2 * y2);
|
|
|
|
return (z2 - z1) / z1;
|
|
})(
|
|
abs(this.startX - this.startX2),
|
|
abs(this.startY - this.startY2),
|
|
abs(this.endX - this.endX2),
|
|
abs(this.endY - this.endY2)
|
|
), event);
|
|
this.startX2 = this.endX2;
|
|
this.startY2 = this.endY2;
|
|
renderable = false;
|
|
break;
|
|
|
|
// Create crop box
|
|
case ACTION_CROP:
|
|
if (!range.x || !range.y) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
offset = this.$cropper.offset();
|
|
left = this.startX - offset.left;
|
|
top = this.startY - offset.top;
|
|
width = cropBox.minWidth;
|
|
height = cropBox.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.isCropped) {
|
|
this.$cropBox.removeClass(CLASS_HIDDEN);
|
|
this.isCropped = true;
|
|
|
|
if (this.limited) {
|
|
this.limitCropBox(true, true);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
// No default
|
|
}
|
|
|
|
if (renderable) {
|
|
cropBox.width = width;
|
|
cropBox.height = height;
|
|
cropBox.left = left;
|
|
cropBox.top = top;
|
|
this.action = action;
|
|
|
|
this.renderCropBox();
|
|
}
|
|
|
|
// Override
|
|
this.startX = this.endX;
|
|
this.startY = this.endY;
|
|
},
|
|
|
|
// Show the crop box manually
|
|
crop: function () {
|
|
if (!this.isBuilt || this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
if (!this.isCropped) {
|
|
this.isCropped = true;
|
|
this.limitCropBox(true, true);
|
|
|
|
if (this.options.modal) {
|
|
this.$dragBox.addClass(CLASS_MODAL);
|
|
}
|
|
|
|
this.$cropBox.removeClass(CLASS_HIDDEN);
|
|
}
|
|
|
|
this.setCropBoxData(this.initialCropBox);
|
|
},
|
|
|
|
// Reset the image and crop box to their initial states
|
|
reset: function () {
|
|
if (!this.isBuilt || this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
this.image = $.extend({}, this.initialImage);
|
|
this.canvas = $.extend({}, this.initialCanvas);
|
|
this.cropBox = $.extend({}, this.initialCropBox);
|
|
|
|
this.renderCanvas();
|
|
|
|
if (this.isCropped) {
|
|
this.renderCropBox();
|
|
}
|
|
},
|
|
|
|
// Clear the crop box
|
|
clear: function () {
|
|
if (!this.isCropped || this.isDisabled) {
|
|
return;
|
|
}
|
|
|
|
$.extend(this.cropBox, {
|
|
left: 0,
|
|
top: 0,
|
|
width: 0,
|
|
height: 0
|
|
});
|
|
|
|
this.isCropped = false;
|
|
this.renderCropBox();
|
|
|
|
this.limitCanvas(true, true);
|
|
|
|
// Render canvas after crop box rendered
|
|
this.renderCanvas();
|
|
|
|
this.$dragBox.removeClass(CLASS_MODAL);
|
|
this.$cropBox.addClass(CLASS_HIDDEN);
|
|
},
|
|
|
|
/**
|
|
* Replace the image's src and rebuild the cropper
|
|
*
|
|
* @param {String} url
|
|
*/
|
|
replace: function (url) {
|
|
if (!this.isDisabled && url) {
|
|
if (this.isImg) {
|
|
this.isReplaced = true;
|
|
this.$element.attr('src', url);
|
|
}
|
|
|
|
// Clear previous data
|
|
this.options.data = null;
|
|
this.load(url);
|
|
}
|
|
},
|
|
|
|
// Enable (unfreeze) the cropper
|
|
enable: function () {
|
|
if (this.isBuilt) {
|
|
this.isDisabled = false;
|
|
this.$cropper.removeClass(CLASS_DISABLED);
|
|
}
|
|
},
|
|
|
|
// Disable (freeze) the cropper
|
|
disable: function () {
|
|
if (this.isBuilt) {
|
|
this.isDisabled = true;
|
|
this.$cropper.addClass(CLASS_DISABLED);
|
|
}
|
|
},
|
|
|
|
// Destroy the cropper and remove the instance from the image
|
|
destroy: function () {
|
|
var $this = this.$element;
|
|
|
|
if (this.isLoaded) {
|
|
if (this.isImg && this.isReplaced) {
|
|
$this.attr('src', this.originalUrl);
|
|
}
|
|
|
|
this.unbuild();
|
|
$this.removeClass(CLASS_HIDDEN);
|
|
} else {
|
|
if (this.isImg) {
|
|
$this.off(EVENT_LOAD, this.start);
|
|
} else if (this.$clone) {
|
|
this.$clone.remove();
|
|
}
|
|
}
|
|
|
|
$this.removeData(NAMESPACE);
|
|
},
|
|
|
|
/**
|
|
* Move the canvas with relative offsets
|
|
*
|
|
* @param {Number} offsetX
|
|
* @param {Number} offsetY (optional)
|
|
*/
|
|
move: function (offsetX, offsetY) {
|
|
var canvas = this.canvas;
|
|
|
|
this.moveTo(
|
|
isUndefined(offsetX) ? offsetX : canvas.left + num(offsetX),
|
|
isUndefined(offsetY) ? offsetY : canvas.top + num(offsetY)
|
|
);
|
|
},
|
|
|
|
/**
|
|
* Move the canvas to an absolute point
|
|
*
|
|
* @param {Number} x
|
|
* @param {Number} y (optional)
|
|
*/
|
|
moveTo: function (x, y) {
|
|
var canvas = this.canvas;
|
|
var isChanged = false;
|
|
|
|
// If "y" is not present, its default value is "x"
|
|
if (isUndefined(y)) {
|
|
y = x;
|
|
}
|
|
|
|
x = num(x);
|
|
y = num(y);
|
|
|
|
if (this.isBuilt && !this.isDisabled && this.options.movable) {
|
|
if (isNumber(x)) {
|
|
canvas.left = x;
|
|
isChanged = true;
|
|
}
|
|
|
|
if (isNumber(y)) {
|
|
canvas.top = y;
|
|
isChanged = true;
|
|
}
|
|
|
|
if (isChanged) {
|
|
this.renderCanvas(true);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Zoom the canvas with a relative ratio
|
|
*
|
|
* @param {Number} ratio
|
|
* @param {jQuery Event} _event (private)
|
|
*/
|
|
zoom: function (ratio, _event) {
|
|
var canvas = this.canvas;
|
|
|
|
ratio = num(ratio);
|
|
|
|
if (ratio < 0) {
|
|
ratio = 1 / (1 - ratio);
|
|
} else {
|
|
ratio = 1 + ratio;
|
|
}
|
|
|
|
this.zoomTo(canvas.width * ratio / canvas.naturalWidth, _event);
|
|
},
|
|
|
|
/**
|
|
* Zoom the canvas to an absolute ratio
|
|
*
|
|
* @param {Number} ratio
|
|
* @param {jQuery Event} _event (private)
|
|
*/
|
|
zoomTo: function (ratio, _event) {
|
|
var options = this.options;
|
|
var canvas = this.canvas;
|
|
var width = canvas.width;
|
|
var height = canvas.height;
|
|
var naturalWidth = canvas.naturalWidth;
|
|
var naturalHeight = canvas.naturalHeight;
|
|
var originalEvent;
|
|
var newWidth;
|
|
var newHeight;
|
|
var offset;
|
|
var center;
|
|
|
|
ratio = num(ratio);
|
|
|
|
if (ratio >= 0 && this.isBuilt && !this.isDisabled && options.zoomable) {
|
|
newWidth = naturalWidth * ratio;
|
|
newHeight = naturalHeight * ratio;
|
|
|
|
if (_event) {
|
|
originalEvent = _event.originalEvent;
|
|
}
|
|
|
|
if (this.trigger(EVENT_ZOOM, {
|
|
originalEvent: originalEvent,
|
|
oldRatio: width / naturalWidth,
|
|
ratio: newWidth / naturalWidth
|
|
}).isDefaultPrevented()) {
|
|
return;
|
|
}
|
|
|
|
if (originalEvent) {
|
|
offset = this.$cropper.offset();
|
|
center = originalEvent.touches ? getTouchesCenter(originalEvent.touches) : {
|
|
pageX: _event.pageX || originalEvent.pageX || 0,
|
|
pageY: _event.pageY || originalEvent.pageY || 0
|
|
};
|
|
|
|
// Zoom from the triggering point of the event
|
|
canvas.left -= (newWidth - width) * (
|
|
((center.pageX - offset.left) - canvas.left) / width
|
|
);
|
|
canvas.top -= (newHeight - height) * (
|
|
((center.pageY - offset.top) - canvas.top) / height
|
|
);
|
|
} else {
|
|
|
|
// Zoom from the center of the canvas
|
|
canvas.left -= (newWidth - width) / 2;
|
|
canvas.top -= (newHeight - height) / 2;
|
|
}
|
|
|
|
canvas.width = newWidth;
|
|
canvas.height = newHeight;
|
|
this.renderCanvas(true);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Rotate the canvas with a relative degree
|
|
*
|
|
* @param {Number} degree
|
|
*/
|
|
rotate: function (degree) {
|
|
this.rotateTo((this.image.rotate || 0) + num(degree));
|
|
},
|
|
|
|
/**
|
|
* Rotate the canvas to an absolute degree
|
|
* https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function#rotate()
|
|
*
|
|
* @param {Number} degree
|
|
*/
|
|
rotateTo: function (degree) {
|
|
degree = num(degree);
|
|
|
|
if (isNumber(degree) && this.isBuilt && !this.isDisabled && this.options.rotatable) {
|
|
this.image.rotate = degree % 360;
|
|
this.isRotated = true;
|
|
this.renderCanvas(true);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Scale the image
|
|
* https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function#scale()
|
|
*
|
|
* @param {Number} scaleX
|
|
* @param {Number} scaleY (optional)
|
|
*/
|
|
scale: function (scaleX, scaleY) {
|
|
var image = this.image;
|
|
var isChanged = false;
|
|
|
|
// If "scaleY" is not present, its default value is "scaleX"
|
|
if (isUndefined(scaleY)) {
|
|
scaleY = scaleX;
|
|
}
|
|
|
|
scaleX = num(scaleX);
|
|
scaleY = num(scaleY);
|
|
|
|
if (this.isBuilt && !this.isDisabled && this.options.scalable) {
|
|
if (isNumber(scaleX)) {
|
|
image.scaleX = scaleX;
|
|
isChanged = true;
|
|
}
|
|
|
|
if (isNumber(scaleY)) {
|
|
image.scaleY = scaleY;
|
|
isChanged = true;
|
|
}
|
|
|
|
if (isChanged) {
|
|
this.renderImage(true);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Scale the abscissa of the image
|
|
*
|
|
* @param {Number} scaleX
|
|
*/
|
|
scaleX: function (scaleX) {
|
|
var scaleY = this.image.scaleY;
|
|
|
|
this.scale(scaleX, isNumber(scaleY) ? scaleY : 1);
|
|
},
|
|
|
|
/**
|
|
* Scale the ordinate of the image
|
|
*
|
|
* @param {Number} scaleY
|
|
*/
|
|
scaleY: function (scaleY) {
|
|
var scaleX = this.image.scaleX;
|
|
|
|
this.scale(isNumber(scaleX) ? scaleX : 1, scaleY);
|
|
},
|
|
|
|
/**
|
|
* Get the cropped area position and size data (base on the original image)
|
|
*
|
|
* @param {Boolean} isRounded (optional)
|
|
* @return {Object} data
|
|
*/
|
|
getData: function (isRounded) {
|
|
var options = this.options;
|
|
var image = this.image;
|
|
var canvas = this.canvas;
|
|
var cropBox = this.cropBox;
|
|
var ratio;
|
|
var data;
|
|
|
|
if (this.isBuilt && this.isCropped) {
|
|
data = {
|
|
x: cropBox.left - canvas.left,
|
|
y: cropBox.top - canvas.top,
|
|
width: cropBox.width,
|
|
height: cropBox.height
|
|
};
|
|
|
|
ratio = image.width / image.naturalWidth;
|
|
|
|
$.each(data, function (i, n) {
|
|
n = n / ratio;
|
|
data[i] = isRounded ? round(n) : n;
|
|
});
|
|
|
|
} else {
|
|
data = {
|
|
x: 0,
|
|
y: 0,
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
}
|
|
|
|
if (options.rotatable) {
|
|
data.rotate = image.rotate || 0;
|
|
}
|
|
|
|
if (options.scalable) {
|
|
data.scaleX = image.scaleX || 1;
|
|
data.scaleY = image.scaleY || 1;
|
|
}
|
|
|
|
return data;
|
|
},
|
|
|
|
/**
|
|
* Set the cropped area position and size with new data
|
|
*
|
|
* @param {Object} data
|
|
*/
|
|
setData: function (data) {
|
|
var options = this.options;
|
|
var image = this.image;
|
|
var canvas = this.canvas;
|
|
var cropBoxData = {};
|
|
var isRotated;
|
|
var isScaled;
|
|
var ratio;
|
|
|
|
if ($.isFunction(data)) {
|
|
data = data.call(this.element);
|
|
}
|
|
|
|
if (this.isBuilt && !this.isDisabled && $.isPlainObject(data)) {
|
|
if (options.rotatable) {
|
|
if (isNumber(data.rotate) && data.rotate !== image.rotate) {
|
|
image.rotate = data.rotate;
|
|
this.isRotated = isRotated = true;
|
|
}
|
|
}
|
|
|
|
if (options.scalable) {
|
|
if (isNumber(data.scaleX) && data.scaleX !== image.scaleX) {
|
|
image.scaleX = data.scaleX;
|
|
isScaled = true;
|
|
}
|
|
|
|
if (isNumber(data.scaleY) && data.scaleY !== image.scaleY) {
|
|
image.scaleY = data.scaleY;
|
|
isScaled = true;
|
|
}
|
|
}
|
|
|
|
if (isRotated) {
|
|
this.renderCanvas();
|
|
} else if (isScaled) {
|
|
this.renderImage();
|
|
}
|
|
|
|
ratio = image.width / image.naturalWidth;
|
|
|
|
if (isNumber(data.x)) {
|
|
cropBoxData.left = data.x * ratio + canvas.left;
|
|
}
|
|
|
|
if (isNumber(data.y)) {
|
|
cropBoxData.top = data.y * ratio + canvas.top;
|
|
}
|
|
|
|
if (isNumber(data.width)) {
|
|
cropBoxData.width = data.width * ratio;
|
|
}
|
|
|
|
if (isNumber(data.height)) {
|
|
cropBoxData.height = data.height * ratio;
|
|
}
|
|
|
|
this.setCropBoxData(cropBoxData);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Get the container size data
|
|
*
|
|
* @return {Object} data
|
|
*/
|
|
getContainerData: function () {
|
|
return this.isBuilt ? this.container : {};
|
|
},
|
|
|
|
/**
|
|
* Get the image position and size data
|
|
*
|
|
* @return {Object} data
|
|
*/
|
|
getImageData: function () {
|
|
return this.isLoaded ? this.image : {};
|
|
},
|
|
|
|
/**
|
|
* Get the canvas position and size data
|
|
*
|
|
* @return {Object} data
|
|
*/
|
|
getCanvasData: function () {
|
|
var canvas = this.canvas;
|
|
var data = {};
|
|
|
|
if (this.isBuilt) {
|
|
$.each([
|
|
'left',
|
|
'top',
|
|
'width',
|
|
'height',
|
|
'naturalWidth',
|
|
'naturalHeight'
|
|
], function (i, n) {
|
|
data[n] = canvas[n];
|
|
});
|
|
}
|
|
|
|
return data;
|
|
},
|
|
|
|
/**
|
|
* Set the canvas position and size with new data
|
|
*
|
|
* @param {Object} data
|
|
*/
|
|
setCanvasData: function (data) {
|
|
var canvas = this.canvas;
|
|
var aspectRatio = canvas.aspectRatio;
|
|
|
|
if ($.isFunction(data)) {
|
|
data = data.call(this.$element);
|
|
}
|
|
|
|
if (this.isBuilt && !this.isDisabled && $.isPlainObject(data)) {
|
|
if (isNumber(data.left)) {
|
|
canvas.left = data.left;
|
|
}
|
|
|
|
if (isNumber(data.top)) {
|
|
canvas.top = data.top;
|
|
}
|
|
|
|
if (isNumber(data.width)) {
|
|
canvas.width = data.width;
|
|
canvas.height = data.width / aspectRatio;
|
|
} else if (isNumber(data.height)) {
|
|
canvas.height = data.height;
|
|
canvas.width = data.height * aspectRatio;
|
|
}
|
|
|
|
this.renderCanvas(true);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Get the crop box position and size data
|
|
*
|
|
* @return {Object} data
|
|
*/
|
|
getCropBoxData: function () {
|
|
var cropBox = this.cropBox;
|
|
var data;
|
|
|
|
if (this.isBuilt && this.isCropped) {
|
|
data = {
|
|
left: cropBox.left,
|
|
top: cropBox.top,
|
|
width: cropBox.width,
|
|
height: cropBox.height
|
|
};
|
|
}
|
|
|
|
return data || {};
|
|
},
|
|
|
|
/**
|
|
* Set the crop box position and size with new data
|
|
*
|
|
* @param {Object} data
|
|
*/
|
|
setCropBoxData: function (data) {
|
|
var cropBox = this.cropBox;
|
|
var aspectRatio = this.options.aspectRatio;
|
|
var isWidthChanged;
|
|
var isHeightChanged;
|
|
|
|
if ($.isFunction(data)) {
|
|
data = data.call(this.$element);
|
|
}
|
|
|
|
if (this.isBuilt && this.isCropped && !this.isDisabled && $.isPlainObject(data)) {
|
|
|
|
if (isNumber(data.left)) {
|
|
cropBox.left = data.left;
|
|
}
|
|
|
|
if (isNumber(data.top)) {
|
|
cropBox.top = data.top;
|
|
}
|
|
|
|
if (isNumber(data.width)) {
|
|
isWidthChanged = true;
|
|
cropBox.width = data.width;
|
|
}
|
|
|
|
if (isNumber(data.height)) {
|
|
isHeightChanged = true;
|
|
cropBox.height = data.height;
|
|
}
|
|
|
|
if (aspectRatio) {
|
|
if (isWidthChanged) {
|
|
cropBox.height = cropBox.width / aspectRatio;
|
|
} else if (isHeightChanged) {
|
|
cropBox.width = cropBox.height * aspectRatio;
|
|
}
|
|
}
|
|
|
|
this.renderCropBox();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Get a canvas drawn the cropped image
|
|
*
|
|
* @param {Object} options (optional)
|
|
* @return {HTMLCanvasElement} canvas
|
|
*/
|
|
getCroppedCanvas: function (options) {
|
|
var originalWidth;
|
|
var originalHeight;
|
|
var canvasWidth;
|
|
var canvasHeight;
|
|
var scaledWidth;
|
|
var scaledHeight;
|
|
var scaledRatio;
|
|
var aspectRatio;
|
|
var canvas;
|
|
var context;
|
|
var data;
|
|
|
|
if (!this.isBuilt || !this.isCropped || !SUPPORT_CANVAS) {
|
|
return;
|
|
}
|
|
|
|
if (!$.isPlainObject(options)) {
|
|
options = {};
|
|
}
|
|
|
|
data = this.getData();
|
|
originalWidth = data.width;
|
|
originalHeight = data.height;
|
|
aspectRatio = originalWidth / originalHeight;
|
|
|
|
if ($.isPlainObject(options)) {
|
|
scaledWidth = options.width;
|
|
scaledHeight = options.height;
|
|
|
|
if (scaledWidth) {
|
|
scaledHeight = scaledWidth / aspectRatio;
|
|
scaledRatio = scaledWidth / originalWidth;
|
|
} else if (scaledHeight) {
|
|
scaledWidth = scaledHeight * aspectRatio;
|
|
scaledRatio = scaledHeight / originalHeight;
|
|
}
|
|
}
|
|
|
|
// The canvas element will use `Math.floor` on a float number, so floor first
|
|
canvasWidth = floor(scaledWidth || originalWidth);
|
|
canvasHeight = floor(scaledHeight || originalHeight);
|
|
|
|
canvas = $('<canvas>')[0];
|
|
canvas.width = canvasWidth;
|
|
canvas.height = canvasHeight;
|
|
context = canvas.getContext('2d');
|
|
|
|
if (options.fillColor) {
|
|
context.fillStyle = options.fillColor;
|
|
context.fillRect(0, 0, canvasWidth, canvasHeight);
|
|
}
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
|
|
context.drawImage.apply(context, (function () {
|
|
var source = getSourceCanvas(this.$clone[0], this.image);
|
|
var sourceWidth = source.width;
|
|
var sourceHeight = source.height;
|
|
var args = [source];
|
|
|
|
// Source canvas
|
|
var srcX = data.x;
|
|
var srcY = data.y;
|
|
var srcWidth;
|
|
var srcHeight;
|
|
|
|
// Destination canvas
|
|
var dstX;
|
|
var dstY;
|
|
var dstWidth;
|
|
var dstHeight;
|
|
|
|
if (srcX <= -originalWidth || srcX > sourceWidth) {
|
|
srcX = srcWidth = dstX = dstWidth = 0;
|
|
} else if (srcX <= 0) {
|
|
dstX = -srcX;
|
|
srcX = 0;
|
|
srcWidth = dstWidth = min(sourceWidth, originalWidth + srcX);
|
|
} else if (srcX <= sourceWidth) {
|
|
dstX = 0;
|
|
srcWidth = dstWidth = min(originalWidth, sourceWidth - srcX);
|
|
}
|
|
|
|
if (srcWidth <= 0 || srcY <= -originalHeight || srcY > sourceHeight) {
|
|
srcY = srcHeight = dstY = dstHeight = 0;
|
|
} else if (srcY <= 0) {
|
|
dstY = -srcY;
|
|
srcY = 0;
|
|
srcHeight = dstHeight = min(sourceHeight, originalHeight + srcY);
|
|
} else if (srcY <= sourceHeight) {
|
|
dstY = 0;
|
|
srcHeight = dstHeight = min(originalHeight, sourceHeight - srcY);
|
|
}
|
|
|
|
// All the numerical parameters should be integer for `drawImage` (#476)
|
|
args.push(floor(srcX), floor(srcY), floor(srcWidth), floor(srcHeight));
|
|
|
|
// Scale destination sizes
|
|
if (scaledRatio) {
|
|
dstX *= scaledRatio;
|
|
dstY *= scaledRatio;
|
|
dstWidth *= scaledRatio;
|
|
dstHeight *= scaledRatio;
|
|
}
|
|
|
|
// Avoid "IndexSizeError" in IE and Firefox
|
|
if (dstWidth > 0 && dstHeight > 0) {
|
|
args.push(floor(dstX), floor(dstY), floor(dstWidth), floor(dstHeight));
|
|
}
|
|
|
|
return args;
|
|
}).call(this));
|
|
|
|
return canvas;
|
|
},
|
|
|
|
/**
|
|
* Change the aspect ratio of the crop box
|
|
*
|
|
* @param {Number} aspectRatio
|
|
*/
|
|
setAspectRatio: function (aspectRatio) {
|
|
var options = this.options;
|
|
|
|
if (!this.isDisabled && !isUndefined(aspectRatio)) {
|
|
|
|
// 0 -> NaN
|
|
options.aspectRatio = max(0, aspectRatio) || NaN;
|
|
|
|
if (this.isBuilt) {
|
|
this.initCropBox();
|
|
|
|
if (this.isCropped) {
|
|
this.renderCropBox();
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Change the drag mode
|
|
*
|
|
* @param {String} mode (optional)
|
|
*/
|
|
setDragMode: function (mode) {
|
|
var options = this.options;
|
|
var croppable;
|
|
var movable;
|
|
|
|
if (this.isLoaded && !this.isDisabled) {
|
|
croppable = mode === ACTION_CROP;
|
|
movable = options.movable && mode === ACTION_MOVE;
|
|
mode = (croppable || movable) ? mode : ACTION_NONE;
|
|
|
|
this.$dragBox.
|
|
data(DATA_ACTION, mode).
|
|
toggleClass(CLASS_CROP, croppable).
|
|
toggleClass(CLASS_MOVE, movable);
|
|
|
|
if (!options.cropBoxMovable) {
|
|
|
|
// Sync drag mode to crop box when it is not movable(#300)
|
|
this.$face.
|
|
data(DATA_ACTION, mode).
|
|
toggleClass(CLASS_CROP, croppable).
|
|
toggleClass(CLASS_MOVE, movable);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Cropper.DEFAULTS = {
|
|
|
|
// Define the view mode of the cropper
|
|
viewMode: 0, // 0, 1, 2, 3
|
|
|
|
// Define the dragging mode of the cropper
|
|
dragMode: 'crop', // 'crop', 'move' or 'none'
|
|
|
|
// Define the aspect ratio of the crop box
|
|
aspectRatio: NaN,
|
|
|
|
// An object with the previous cropping result data
|
|
data: null,
|
|
|
|
// A jQuery selector for adding extra containers to preview
|
|
preview: '',
|
|
|
|
// Re-render the cropper when resize the window
|
|
responsive: true,
|
|
|
|
// Restore the cropped area after resize the window
|
|
restore: true,
|
|
|
|
// Check if the current image is a cross-origin image
|
|
checkCrossOrigin: true,
|
|
|
|
// Check the current image's Exif Orientation information
|
|
checkOrientation: true,
|
|
|
|
// Show the black modal
|
|
modal: true,
|
|
|
|
// Show the dashed lines for guiding
|
|
guides: true,
|
|
|
|
// Show the center indicator for guiding
|
|
center: true,
|
|
|
|
// Show the white modal to highlight the crop box
|
|
highlight: true,
|
|
|
|
// Show the grid background
|
|
background: true,
|
|
|
|
// Enable to crop the image automatically when initialize
|
|
autoCrop: true,
|
|
|
|
// Define the percentage of automatic cropping area when initializes
|
|
autoCropArea: 0.8,
|
|
|
|
// Enable to move the image
|
|
movable: true,
|
|
|
|
// Enable to rotate the image
|
|
rotatable: true,
|
|
|
|
// Enable to scale the image
|
|
scalable: true,
|
|
|
|
// Enable to zoom the image
|
|
zoomable: true,
|
|
|
|
// Enable to zoom the image by dragging touch
|
|
zoomOnTouch: true,
|
|
|
|
// Enable to zoom the image by wheeling mouse
|
|
zoomOnWheel: true,
|
|
|
|
// Define zoom ratio when zoom the image by wheeling mouse
|
|
wheelZoomRatio: 0.1,
|
|
|
|
// Enable to move the crop box
|
|
cropBoxMovable: true,
|
|
|
|
// Enable to resize the crop box
|
|
cropBoxResizable: true,
|
|
|
|
// Toggle drag mode between "crop" and "move" when click twice on the cropper
|
|
toggleDragModeOnDblclick: true,
|
|
|
|
// Size limitation
|
|
minCanvasWidth: 0,
|
|
minCanvasHeight: 0,
|
|
minCropBoxWidth: 0,
|
|
minCropBoxHeight: 0,
|
|
minContainerWidth: 200,
|
|
minContainerHeight: 100,
|
|
|
|
// Shortcuts of events
|
|
build: null,
|
|
built: null,
|
|
cropstart: null,
|
|
cropmove: null,
|
|
cropend: null,
|
|
crop: null,
|
|
zoom: null
|
|
};
|
|
|
|
Cropper.setDefaults = function (options) {
|
|
$.extend(Cropper.DEFAULTS, options);
|
|
};
|
|
|
|
Cropper.TEMPLATE = (
|
|
'<div class="cropper-container">' +
|
|
'<div class="cropper-wrap-box">' +
|
|
'<div class="cropper-canvas"></div>' +
|
|
'</div>' +
|
|
'<div class="cropper-drag-box"></div>' +
|
|
'<div class="cropper-crop-box">' +
|
|
'<span class="cropper-view-box"></span>' +
|
|
'<span class="cropper-dashed dashed-h"></span>' +
|
|
'<span class="cropper-dashed dashed-v"></span>' +
|
|
'<span class="cropper-center"></span>' +
|
|
'<span class="cropper-face"></span>' +
|
|
'<span class="cropper-line line-e" data-action="e"></span>' +
|
|
'<span class="cropper-line line-n" data-action="n"></span>' +
|
|
'<span class="cropper-line line-w" data-action="w"></span>' +
|
|
'<span class="cropper-line line-s" data-action="s"></span>' +
|
|
'<span class="cropper-point point-e" data-action="e"></span>' +
|
|
'<span class="cropper-point point-n" data-action="n"></span>' +
|
|
'<span class="cropper-point point-w" data-action="w"></span>' +
|
|
'<span class="cropper-point point-s" data-action="s"></span>' +
|
|
'<span class="cropper-point point-ne" data-action="ne"></span>' +
|
|
'<span class="cropper-point point-nw" data-action="nw"></span>' +
|
|
'<span class="cropper-point point-sw" data-action="sw"></span>' +
|
|
'<span class="cropper-point point-se" data-action="se"></span>' +
|
|
'</div>' +
|
|
'</div>'
|
|
);
|
|
|
|
// Save the other cropper
|
|
Cropper.other = $.fn.cropper;
|
|
|
|
// Register as jQuery plugin
|
|
$.fn.cropper = function (option) {
|
|
var args = toArray(arguments, 1);
|
|
var result;
|
|
|
|
this.each(function () {
|
|
var $this = $(this);
|
|
var data = $this.data(NAMESPACE);
|
|
var options;
|
|
var fn;
|
|
|
|
if (!data) {
|
|
if (/destroy/.test(option)) {
|
|
return;
|
|
}
|
|
|
|
options = $.extend({}, $this.data(), $.isPlainObject(option) && option);
|
|
$this.data(NAMESPACE, (data = new Cropper(this, options)));
|
|
}
|
|
|
|
if (typeof option === 'string' && $.isFunction(fn = data[option])) {
|
|
result = fn.apply(data, args);
|
|
}
|
|
});
|
|
|
|
return isUndefined(result) ? this : result;
|
|
};
|
|
|
|
$.fn.cropper.Constructor = Cropper;
|
|
$.fn.cropper.setDefaults = Cropper.setDefaults;
|
|
|
|
// No conflict
|
|
$.fn.cropper.noConflict = function () {
|
|
$.fn.cropper = Cropper.other;
|
|
return this;
|
|
};
|
|
|
|
});
|