2458 lines
63 KiB
JavaScript
2458 lines
63 KiB
JavaScript
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/*!
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* Cropper v0.11.1
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* https://github.com/fengyuanchen/cropper
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*
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* Copyright (c) 2014-2015 Fengyuan Chen and contributors
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* Released under the MIT license
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*
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* Date: 2015-08-22T04:55:04.780Z
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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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// Constants
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var NAMESPACE = 'cropper';
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var PREVIEW = 'preview.' + NAMESPACE;
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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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// 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 sqrt = Math.sqrt;
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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 num = parseFloat;
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// Prototype
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var prototype = {};
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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 getImageData(image) {
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var naturalWidth = image.naturalWidth;
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var naturalHeight = image.naturalHeight;
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var newImage;
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// IE8
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if (!naturalWidth) {
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newImage = new Image();
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newImage.src = image.src;
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naturalWidth = newImage.width;
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naturalHeight = newImage.height;
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}
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return {
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naturalWidth: naturalWidth,
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naturalHeight: naturalHeight,
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aspectRatio: naturalWidth / naturalHeight
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};
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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, reverse) {
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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 (!reverse) {
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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, x, y, width, 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 Cropper(element, options) {
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this.$element = $(element);
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this.options = $.extend({}, Cropper.DEFAULTS, $.isPlainObject(options) && options);
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this.ready = false;
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this.built = false;
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this.complete = false;
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this.rotated = false;
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this.cropped = false;
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this.disabled = false;
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this.replaced = false;
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this.isImg = false;
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this.originalUrl = '';
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this.canvas = null;
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this.cropBox = null;
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this.init();
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}
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$.extend(prototype, {
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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.isDefaultPrevented();
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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 crossOrigin = '';
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var bustCacheUrl;
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var $clone;
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if (!url) {
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return;
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}
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this.url = url;
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// Trigger build event first
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$this.one(EVENT_BUILD, options.build);
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if (this.trigger(EVENT_BUILD)) {
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return;
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}
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if (options.checkImageOrigin && isCrossOriginURL(url)) {
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crossOrigin = ' crossOrigin="anonymous"';
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// Bust cache (#148), only when there was not a "crossOrigin" property
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if (!$this.prop('crossOrigin')) {
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bustCacheUrl = addTimestamp(url);
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}
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}
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this.$clone = $clone = $('<img' + crossOrigin + ' src="' + (bustCacheUrl || url) + '">');
|
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if (this.isImg) {
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if ($this[0].complete) {
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this.start();
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} else {
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$this.one(EVENT_LOAD, $.proxy(this.start, this));
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}
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} else {
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$clone.
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one(EVENT_LOAD, $.proxy(this.start, this)).
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one(EVENT_ERROR, $.proxy(this.stop, this)).
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addClass(CLASS_HIDE).
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insertAfter($this);
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}
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},
|
||
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||
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start: function () {
|
||
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this.image = getImageData(this.isImg ? this.$element[0] : this.$clone[0]);
|
||
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this.ready = true;
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||
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this.build();
|
||
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},
|
||
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||
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stop: function () {
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||
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this.$clone.remove();
|
||
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this.$clone = null;
|
||
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}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
build: function () {
|
||
|
|
var options = this.options;
|
||
|
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var $this = this.$element;
|
||
|
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var $clone = this.$clone;
|
||
|
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var $cropper;
|
||
|
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var $cropBox;
|
||
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var $face;
|
||
|
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|
||
|
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if (!this.ready) {
|
||
|
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return;
|
||
|
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}
|
||
|
|
|
||
|
|
// Unbuild first when replace
|
||
|
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if (this.built) {
|
||
|
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this.unbuild();
|
||
|
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}
|
||
|
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|
||
|
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// Create cropper elements
|
||
|
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this.$container = $this.parent();
|
||
|
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this.$cropper = $cropper = $(Cropper.TEMPLATE);
|
||
|
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this.$canvas = $cropper.find('.cropper-canvas').append($clone);
|
||
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this.$dragBox = $cropper.find('.cropper-drag-box');
|
||
|
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this.$cropBox = $cropBox = $cropper.find('.cropper-crop-box');
|
||
|
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this.$viewBox = $cropper.find('.cropper-view-box');
|
||
|
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this.$face = $face = $cropBox.find('.cropper-face');
|
||
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|
|
||
|
|
// Hide the original image
|
||
|
|
$this.addClass(CLASS_HIDDEN).after($cropper);
|
||
|
|
|
||
|
|
// Show the clone image if is hidden
|
||
|
|
if (!this.isImg) {
|
||
|
|
$clone.removeClass(CLASS_HIDE);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.initPreview();
|
||
|
|
this.bind();
|
||
|
|
|
||
|
|
// Format aspect ratio (0 -> NaN)
|
||
|
|
options.aspectRatio = num(options.aspectRatio) || NaN;
|
||
|
|
|
||
|
|
if (options.autoCrop) {
|
||
|
|
this.cropped = true;
|
||
|
|
|
||
|
|
if (options.modal) {
|
||
|
|
this.$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('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.dragCrop ? ACTION_CROP : (options.movable ? ACTION_MOVE : ACTION_NONE));
|
||
|
|
|
||
|
|
this.render();
|
||
|
|
this.built = 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.complete = true;
|
||
|
|
}, this), 0);
|
||
|
|
},
|
||
|
|
|
||
|
|
unbuild: function () {
|
||
|
|
if (!this.built) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.built = 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;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
render: function () {
|
||
|
|
this.initContainer();
|
||
|
|
this.initCanvas();
|
||
|
|
this.initCropBox();
|
||
|
|
|
||
|
|
this.renderCanvas();
|
||
|
|
|
||
|
|
if (this.cropped) {
|
||
|
|
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 container = this.container;
|
||
|
|
var containerWidth = container.width;
|
||
|
|
var containerHeight = container.height;
|
||
|
|
var image = this.image;
|
||
|
|
var aspectRatio = image.aspectRatio;
|
||
|
|
var canvas = {
|
||
|
|
aspectRatio: aspectRatio,
|
||
|
|
width: containerWidth,
|
||
|
|
height: containerHeight
|
||
|
|
};
|
||
|
|
|
||
|
|
if (containerHeight * aspectRatio > containerWidth) {
|
||
|
|
canvas.height = containerWidth / aspectRatio;
|
||
|
|
} else {
|
||
|
|
canvas.width = containerHeight * aspectRatio;
|
||
|
|
}
|
||
|
|
|
||
|
|
canvas.oldLeft = canvas.left = (containerWidth - canvas.width) / 2;
|
||
|
|
canvas.oldTop = canvas.top = (containerHeight - canvas.height) / 2;
|
||
|
|
|
||
|
|
this.canvas = canvas;
|
||
|
|
this.limitCanvas(true, true);
|
||
|
|
this.initialImage = $.extend({}, image);
|
||
|
|
this.initialCanvas = $.extend({}, canvas);
|
||
|
|
},
|
||
|
|
|
||
|
|
limitCanvas: function (size, position) {
|
||
|
|
var options = this.options;
|
||
|
|
var strict = options.strict;
|
||
|
|
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 cropped = this.cropped && cropBox;
|
||
|
|
var initialCanvas = this.initialCanvas || canvas;
|
||
|
|
var initialCanvasWidth = initialCanvas.width;
|
||
|
|
var initialCanvasHeight = initialCanvas.height;
|
||
|
|
var minCanvasWidth;
|
||
|
|
var minCanvasHeight;
|
||
|
|
|
||
|
|
if (size) {
|
||
|
|
minCanvasWidth = num(options.minCanvasWidth) || 0;
|
||
|
|
minCanvasHeight = num(options.minCanvasHeight) || 0;
|
||
|
|
|
||
|
|
if (minCanvasWidth) {
|
||
|
|
if (strict) {
|
||
|
|
minCanvasWidth = max(cropped ? cropBox.width : initialCanvasWidth, minCanvasWidth);
|
||
|
|
}
|
||
|
|
|
||
|
|
minCanvasHeight = minCanvasWidth / aspectRatio;
|
||
|
|
} else if (minCanvasHeight) {
|
||
|
|
if (strict) {
|
||
|
|
minCanvasHeight = max(cropped ? cropBox.height : initialCanvasHeight, minCanvasHeight);
|
||
|
|
}
|
||
|
|
|
||
|
|
minCanvasWidth = minCanvasHeight * aspectRatio;
|
||
|
|
} else if (strict) {
|
||
|
|
if (cropped) {
|
||
|
|
minCanvasWidth = cropBox.width;
|
||
|
|
minCanvasHeight = cropBox.height;
|
||
|
|
|
||
|
|
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
|
||
|
|
minCanvasWidth = minCanvasHeight * aspectRatio;
|
||
|
|
} else {
|
||
|
|
minCanvasHeight = minCanvasWidth / aspectRatio;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
minCanvasWidth = initialCanvasWidth;
|
||
|
|
minCanvasHeight = initialCanvasHeight;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$.extend(canvas, {
|
||
|
|
minWidth: minCanvasWidth,
|
||
|
|
minHeight: minCanvasHeight,
|
||
|
|
maxWidth: Infinity,
|
||
|
|
maxHeight: Infinity
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (position) {
|
||
|
|
if (strict) {
|
||
|
|
if (cropped) {
|
||
|
|
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;
|
||
|
|
} else {
|
||
|
|
canvas.minLeft = min(0, containerWidth - canvas.width);
|
||
|
|
canvas.minTop = min(0, containerHeight - canvas.height);
|
||
|
|
canvas.maxLeft = max(0, containerWidth - canvas.width);
|
||
|
|
canvas.maxTop = max(0, containerHeight - canvas.height);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
canvas.minLeft = -canvas.width;
|
||
|
|
canvas.minTop = -canvas.height;
|
||
|
|
canvas.maxLeft = containerWidth;
|
||
|
|
canvas.maxTop = containerHeight;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
renderCanvas: function (changed) {
|
||
|
|
var options = this.options;
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var image = this.image;
|
||
|
|
var aspectRatio;
|
||
|
|
var rotated;
|
||
|
|
|
||
|
|
if (this.rotated) {
|
||
|
|
this.rotated = false;
|
||
|
|
|
||
|
|
// Computes rotated sizes with image sizes
|
||
|
|
rotated = getRotatedSizes({
|
||
|
|
width: image.width,
|
||
|
|
height: image.height,
|
||
|
|
degree: image.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;
|
||
|
|
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.cropped && options.strict) {
|
||
|
|
this.limitCropBox(true, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (changed) {
|
||
|
|
this.output();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
renderImage: function (changed) {
|
||
|
|
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 (changed) {
|
||
|
|
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 (size, position) {
|
||
|
|
var options = this.options;
|
||
|
|
var strict = options.strict;
|
||
|
|
var container = this.container;
|
||
|
|
var containerWidth = container.width;
|
||
|
|
var containerHeight = container.height;
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var cropBox = this.cropBox;
|
||
|
|
var aspectRatio = options.aspectRatio;
|
||
|
|
var minCropBoxWidth;
|
||
|
|
var minCropBoxHeight;
|
||
|
|
|
||
|
|
if (size) {
|
||
|
|
minCropBoxWidth = num(options.minCropBoxWidth) || 0;
|
||
|
|
minCropBoxHeight = num(options.minCropBoxHeight) || 0;
|
||
|
|
|
||
|
|
// The min/maxCropBoxWidth/Height must less than container width/height
|
||
|
|
cropBox.minWidth = min(containerWidth, minCropBoxWidth);
|
||
|
|
cropBox.minHeight = min(containerHeight, minCropBoxHeight);
|
||
|
|
cropBox.maxWidth = min(containerWidth, strict ? canvas.width : containerWidth);
|
||
|
|
cropBox.maxHeight = min(containerHeight, strict ? canvas.height : containerHeight);
|
||
|
|
|
||
|
|
if (aspectRatio) {
|
||
|
|
|
||
|
|
// Compare crop box size with container first
|
||
|
|
if (cropBox.maxHeight * aspectRatio > cropBox.maxWidth) {
|
||
|
|
cropBox.minHeight = cropBox.minWidth / aspectRatio;
|
||
|
|
cropBox.maxHeight = cropBox.maxWidth / aspectRatio;
|
||
|
|
} else {
|
||
|
|
cropBox.minWidth = cropBox.minHeight * aspectRatio;
|
||
|
|
cropBox.maxWidth = cropBox.maxHeight * aspectRatio;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The "minWidth" must be less than "maxWidth", and the "minHeight" too.
|
||
|
|
cropBox.minWidth = min(cropBox.maxWidth, cropBox.minWidth);
|
||
|
|
cropBox.minHeight = min(cropBox.maxHeight, cropBox.minHeight);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (position) {
|
||
|
|
if (strict) {
|
||
|
|
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('action', (cropBox.width === containerWidth && cropBox.height === containerHeight) ? ACTION_MOVE : ACTION_ALL);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.$cropBox.css({
|
||
|
|
width: cropBox.width,
|
||
|
|
height: cropBox.height,
|
||
|
|
left: cropBox.left,
|
||
|
|
top: cropBox.top
|
||
|
|
});
|
||
|
|
|
||
|
|
if (this.cropped && options.strict) {
|
||
|
|
this.limitCanvas(true, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.disabled) {
|
||
|
|
this.output();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
output: function () {
|
||
|
|
this.preview();
|
||
|
|
|
||
|
|
if (this.complete) {
|
||
|
|
this.trigger(EVENT_CROP, this.getData());
|
||
|
|
} else if (!this.built) {
|
||
|
|
|
||
|
|
// Only trigger one crop event before complete
|
||
|
|
this.$element.one(EVENT_BUILT, $.proxy(function () {
|
||
|
|
this.trigger(EVENT_CROP, this.getData());
|
||
|
|
}, this));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
initPreview: function () {
|
||
|
|
var url = this.url;
|
||
|
|
|
||
|
|
this.$preview = $(this.options.preview);
|
||
|
|
this.$viewBox.html('<img src="' + url + '">');
|
||
|
|
this.$preview.each(function () {
|
||
|
|
var $this = $(this);
|
||
|
|
|
||
|
|
// Save the original size for recover
|
||
|
|
$this.data(PREVIEW, {
|
||
|
|
width: $this.width(),
|
||
|
|
height: $this.height(),
|
||
|
|
original: $this.html()
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Override img element styles
|
||
|
|
* Add `display:block` to avoid margin top issue
|
||
|
|
* (Occur only when margin-top <= -height)
|
||
|
|
*/
|
||
|
|
$this.html(
|
||
|
|
'<img src="' + url + '" style="display:block;width:100%;' +
|
||
|
|
'min-width:0!important;min-height:0!important;' +
|
||
|
|
'max-width:none!important;max-height:none!important;' +
|
||
|
|
'image-orientation:0deg!important">'
|
||
|
|
);
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
resetPreview: function () {
|
||
|
|
this.$preview.each(function () {
|
||
|
|
var $this = $(this);
|
||
|
|
|
||
|
|
$this.html($this.data(PREVIEW).original).removeData(PREVIEW);
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
preview: function () {
|
||
|
|
var image = this.image;
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var cropBox = this.cropBox;
|
||
|
|
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.cropped || this.disabled) {
|
||
|
|
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(PREVIEW);
|
||
|
|
var ratio = data.width / cropBox.width;
|
||
|
|
var newWidth = data.width;
|
||
|
|
var newHeight = cropBox.height * ratio;
|
||
|
|
|
||
|
|
if (newHeight > data.height) {
|
||
|
|
ratio = data.height / cropBox.height;
|
||
|
|
newWidth = cropBox.width * ratio;
|
||
|
|
newHeight = data.height;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this.width(newWidth).height(newHeight).find('img').css({
|
||
|
|
width: width * ratio,
|
||
|
|
height: height * ratio,
|
||
|
|
marginLeft: -left * ratio,
|
||
|
|
marginTop: -top * ratio,
|
||
|
|
transform: getTransform(image)
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
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.mouseWheelZoom) {
|
||
|
|
$cropper.on(EVENT_WHEEL, $.proxy(this.wheel, this));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options.doubleClickToggle) {
|
||
|
|
$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.mouseWheelZoom) {
|
||
|
|
$cropper.off(EVENT_WHEEL, this.wheel);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options.doubleClickToggle) {
|
||
|
|
$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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
resize: function () {
|
||
|
|
var $container = this.$container;
|
||
|
|
var container = this.container;
|
||
|
|
var canvasData;
|
||
|
|
var cropBoxData;
|
||
|
|
var ratio;
|
||
|
|
|
||
|
|
// Check `container` is necessary for IE8
|
||
|
|
if (this.disabled || !container) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
ratio = $container.width() / container.width;
|
||
|
|
|
||
|
|
// Resize when width changed or height changed
|
||
|
|
if (ratio !== 1 || $container.height() !== container.height) {
|
||
|
|
canvasData = this.getCanvasData();
|
||
|
|
cropBoxData = this.getCropBoxData();
|
||
|
|
|
||
|
|
this.render();
|
||
|
|
this.setCanvasData($.each(canvasData, function (i, n) {
|
||
|
|
canvasData[i] = n * ratio;
|
||
|
|
}));
|
||
|
|
this.setCropBoxData($.each(cropBoxData, function (i, n) {
|
||
|
|
cropBoxData[i] = n * ratio;
|
||
|
|
}));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
dblclick: function () {
|
||
|
|
if (this.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.$dragBox.hasClass(CLASS_CROP)) {
|
||
|
|
this.setDragMode(ACTION_MOVE);
|
||
|
|
} else {
|
||
|
|
this.setDragMode(ACTION_CROP);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
wheel: function (event) {
|
||
|
|
var originalEvent = event.originalEvent;
|
||
|
|
var e = originalEvent;
|
||
|
|
var ratio = num(this.options.wheelZoomRatio) || 0.1;
|
||
|
|
var delta = 1;
|
||
|
|
|
||
|
|
if (this.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
event.preventDefault();
|
||
|
|
|
||
|
|
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, originalEvent);
|
||
|
|
},
|
||
|
|
|
||
|
|
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.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (touches) {
|
||
|
|
touchesLength = touches.length;
|
||
|
|
|
||
|
|
if (touchesLength > 1) {
|
||
|
|
if (options.zoomable && options.touchDragZoom && touchesLength === 2) {
|
||
|
|
e = touches[1];
|
||
|
|
this.startX2 = e.pageX;
|
||
|
|
this.startY2 = e.pageY;
|
||
|
|
action = ACTION_ZOOM;
|
||
|
|
} else {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
e = touches[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
action = action || $(e.target).data('action');
|
||
|
|
|
||
|
|
if (REGEXP_ACTIONS.test(action)) {
|
||
|
|
if (this.trigger(EVENT_CROP_START, {
|
||
|
|
originalEvent: originalEvent,
|
||
|
|
action: action
|
||
|
|
})) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
event.preventDefault();
|
||
|
|
|
||
|
|
this.action = action;
|
||
|
|
this.cropping = false;
|
||
|
|
|
||
|
|
// IE8 has `event.pageX/Y`, but not `event.originalEvent.pageX/Y`
|
||
|
|
// IE10 has `event.originalEvent.pageX/Y`, but not `event.pageX/Y`
|
||
|
|
this.startX = e.pageX || originalEvent && originalEvent.pageX;
|
||
|
|
this.startY = e.pageY || originalEvent && originalEvent.pageY;
|
||
|
|
|
||
|
|
if (action === ACTION_CROP) {
|
||
|
|
this.cropping = true;
|
||
|
|
this.$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.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (touches) {
|
||
|
|
touchesLength = touches.length;
|
||
|
|
|
||
|
|
if (touchesLength > 1) {
|
||
|
|
if (options.zoomable && options.touchDragZoom && 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
|
||
|
|
})) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
event.preventDefault();
|
||
|
|
|
||
|
|
this.endX = e.pageX || originalEvent && originalEvent.pageX;
|
||
|
|
this.endY = e.pageY || originalEvent && originalEvent.pageY;
|
||
|
|
|
||
|
|
this.change(e.shiftKey, action === ACTION_ZOOM ? originalEvent : null);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
cropEnd: function (event) {
|
||
|
|
var originalEvent = event.originalEvent;
|
||
|
|
var action = this.action;
|
||
|
|
|
||
|
|
if (this.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (action) {
|
||
|
|
event.preventDefault();
|
||
|
|
|
||
|
|
if (this.cropping) {
|
||
|
|
this.cropping = false;
|
||
|
|
this.$dragBox.toggleClass(CLASS_MODAL, this.cropped && this.options.modal);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.action = '';
|
||
|
|
|
||
|
|
this.trigger(EVENT_CROP_END, {
|
||
|
|
originalEvent: originalEvent,
|
||
|
|
action: action
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
change: function (shiftKey, originalEvent) {
|
||
|
|
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 (options.strict) {
|
||
|
|
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:
|
||
|
|
canvas.left += range.x;
|
||
|
|
canvas.top += range.y;
|
||
|
|
this.renderCanvas(true);
|
||
|
|
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)
|
||
|
|
), originalEvent);
|
||
|
|
this.startX2 = this.endX2;
|
||
|
|
this.startY2 = this.endY2;
|
||
|
|
renderable = false;
|
||
|
|
break;
|
||
|
|
|
||
|
|
// Create crop box
|
||
|
|
case ACTION_CROP:
|
||
|
|
if (range.x && range.y) {
|
||
|
|
offset = this.$cropper.offset();
|
||
|
|
left = this.startX - offset.left;
|
||
|
|
top = this.startY - offset.top;
|
||
|
|
width = cropBox.minWidth;
|
||
|
|
height = cropBox.minHeight;
|
||
|
|
|
||
|
|
if (range.x > 0) {
|
||
|
|
if (range.y > 0) {
|
||
|
|
action = ACTION_SOUTH_EAST;
|
||
|
|
} else {
|
||
|
|
action = ACTION_NORTH_EAST;
|
||
|
|
top -= height;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (range.y > 0) {
|
||
|
|
action = ACTION_SOUTH_WEST;
|
||
|
|
left -= width;
|
||
|
|
} else {
|
||
|
|
action = ACTION_NORTH_WEST;
|
||
|
|
left -= width;
|
||
|
|
top -= height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Show the crop box if is hidden
|
||
|
|
if (!this.cropped) {
|
||
|
|
this.cropped = true;
|
||
|
|
this.$cropBox.removeClass(CLASS_HIDDEN);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(prototype, {
|
||
|
|
|
||
|
|
// Show the crop box manually
|
||
|
|
crop: function () {
|
||
|
|
if (!this.built || this.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.cropped) {
|
||
|
|
this.cropped = true;
|
||
|
|
this.limitCropBox(true, true);
|
||
|
|
|
||
|
|
if (this.options.modal) {
|
||
|
|
this.$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.built || this.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.image = $.extend({}, this.initialImage);
|
||
|
|
this.canvas = $.extend({}, this.initialCanvas);
|
||
|
|
|
||
|
|
// Required for strict mode
|
||
|
|
this.cropBox = $.extend({}, this.initialCropBox);
|
||
|
|
|
||
|
|
this.renderCanvas();
|
||
|
|
|
||
|
|
if (this.cropped) {
|
||
|
|
this.renderCropBox();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// Clear the crop box
|
||
|
|
clear: function () {
|
||
|
|
if (!this.cropped || this.disabled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$.extend(this.cropBox, {
|
||
|
|
left: 0,
|
||
|
|
top: 0,
|
||
|
|
width: 0,
|
||
|
|
height: 0
|
||
|
|
});
|
||
|
|
|
||
|
|
this.cropped = false;
|
||
|
|
this.renderCropBox();
|
||
|
|
|
||
|
|
this.limitCanvas();
|
||
|
|
|
||
|
|
// Render canvas after crop box rendered
|
||
|
|
this.renderCanvas();
|
||
|
|
|
||
|
|
this.$dragBox.removeClass(CLASS_MODAL);
|
||
|
|
this.$cropBox.addClass(CLASS_HIDDEN);
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Replace the image's src and rebuild the cropper
|
||
|
|
*
|
||
|
|
* @param {String} url
|
||
|
|
*/
|
||
|
|
replace: function (url) {
|
||
|
|
if (!this.disabled && url) {
|
||
|
|
if (this.isImg) {
|
||
|
|
this.$element.attr('src', url);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clear previous data
|
||
|
|
this.options.data = null;
|
||
|
|
this.load(url);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// Enable (unfreeze) the cropper
|
||
|
|
enable: function () {
|
||
|
|
if (this.built) {
|
||
|
|
this.disabled = false;
|
||
|
|
this.$cropper.removeClass(CLASS_DISABLED);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// Disable (freeze) the cropper
|
||
|
|
disable: function () {
|
||
|
|
if (this.built) {
|
||
|
|
this.disabled = true;
|
||
|
|
this.$cropper.addClass(CLASS_DISABLED);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// Destroy the cropper and remove the instance from the image
|
||
|
|
destroy: function () {
|
||
|
|
var $this = this.$element;
|
||
|
|
|
||
|
|
if (this.ready) {
|
||
|
|
if (this.isImg) {
|
||
|
|
$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
|
||
|
|
*
|
||
|
|
* @param {Number} offsetX
|
||
|
|
* @param {Number} offsetY (optional)
|
||
|
|
*/
|
||
|
|
move: function (offsetX, offsetY) {
|
||
|
|
var canvas = this.canvas;
|
||
|
|
|
||
|
|
// If "offsetY" is not present, its default value is "offsetX"
|
||
|
|
if (isUndefined(offsetY)) {
|
||
|
|
offsetY = offsetX;
|
||
|
|
}
|
||
|
|
|
||
|
|
offsetX = num(offsetX);
|
||
|
|
offsetY = num(offsetY);
|
||
|
|
|
||
|
|
if (this.built && !this.disabled && this.options.movable) {
|
||
|
|
canvas.left += isNumber(offsetX) ? offsetX : 0;
|
||
|
|
canvas.top += isNumber(offsetY) ? offsetY : 0;
|
||
|
|
this.renderCanvas(true);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Zoom the canvas
|
||
|
|
*
|
||
|
|
* @param {Number} ratio
|
||
|
|
* @param {Event} _originalEvent (private)
|
||
|
|
*/
|
||
|
|
zoom: function (ratio, _originalEvent) {
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var width;
|
||
|
|
var height;
|
||
|
|
|
||
|
|
ratio = num(ratio);
|
||
|
|
|
||
|
|
if (ratio && this.built && !this.disabled && this.options.zoomable) {
|
||
|
|
if (this.trigger(EVENT_ZOOM, {
|
||
|
|
originalEvent: _originalEvent,
|
||
|
|
ratio: ratio
|
||
|
|
})) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ratio < 0) {
|
||
|
|
ratio = 1 / (1 - ratio);
|
||
|
|
} else {
|
||
|
|
ratio = 1 + ratio;
|
||
|
|
}
|
||
|
|
|
||
|
|
width = canvas.width * ratio;
|
||
|
|
height = canvas.height * ratio;
|
||
|
|
canvas.left -= (width - canvas.width) / 2;
|
||
|
|
canvas.top -= (height - canvas.height) / 2;
|
||
|
|
canvas.width = width;
|
||
|
|
canvas.height = height;
|
||
|
|
this.renderCanvas(true);
|
||
|
|
this.setDragMode(ACTION_MOVE);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Rotate the canvas
|
||
|
|
* https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function#rotate()
|
||
|
|
*
|
||
|
|
* @param {Number} degree
|
||
|
|
*/
|
||
|
|
rotate: function (degree) {
|
||
|
|
var image = this.image;
|
||
|
|
var rotate = image.rotate || 0;
|
||
|
|
|
||
|
|
degree = num(degree) || 0;
|
||
|
|
|
||
|
|
if (this.built && !this.disabled && this.options.rotatable) {
|
||
|
|
image.rotate = (rotate + degree) % 360;
|
||
|
|
this.rotated = 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;
|
||
|
|
|
||
|
|
// If "scaleY" is not present, its default value is "scaleX"
|
||
|
|
if (isUndefined(scaleY)) {
|
||
|
|
scaleY = scaleX;
|
||
|
|
}
|
||
|
|
|
||
|
|
scaleX = num(scaleX);
|
||
|
|
scaleY = num(scaleY);
|
||
|
|
|
||
|
|
if (this.built && !this.disabled && this.options.scalable) {
|
||
|
|
image.scaleX = isNumber(scaleX) ? scaleX : 1;
|
||
|
|
image.scaleY = isNumber(scaleY) ? scaleY : 1;
|
||
|
|
this.renderImage(true);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the cropped area position and size data (base on the original image)
|
||
|
|
*
|
||
|
|
* @param {Boolean} rounded (optional)
|
||
|
|
* @return {Object} data
|
||
|
|
*/
|
||
|
|
getData: function (rounded) {
|
||
|
|
var options = this.options;
|
||
|
|
var image = this.image;
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var cropBox = this.cropBox;
|
||
|
|
var ratio;
|
||
|
|
var data;
|
||
|
|
|
||
|
|
if (this.built && this.cropped) {
|
||
|
|
data = {
|
||
|
|
x: cropBox.left - canvas.left,
|
||
|
|
y: cropBox.top - canvas.top,
|
||
|
|
width: cropBox.width,
|
||
|
|
height: cropBox.height
|
||
|
|
};
|
||
|
|
|
||
|
|
ratio = image.width / image.naturalWidth;
|
||
|
|
|
||
|
|
$.each(data, function (i, n) {
|
||
|
|
n = n / ratio;
|
||
|
|
data[i] = rounded ? Math.round(n) : n;
|
||
|
|
});
|
||
|
|
|
||
|
|
} else {
|
||
|
|
data = {
|
||
|
|
x: 0,
|
||
|
|
y: 0,
|
||
|
|
width: 0,
|
||
|
|
height: 0
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options.rotatable) {
|
||
|
|
data.rotate = image.rotate || 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options.scalable) {
|
||
|
|
data.scaleX = image.scaleX || 1;
|
||
|
|
data.scaleY = image.scaleY || 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return data;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the cropped area position and size with new data
|
||
|
|
*
|
||
|
|
* @param {Object} data
|
||
|
|
*/
|
||
|
|
setData: function (data) {
|
||
|
|
var image = this.image;
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var cropBoxData = {};
|
||
|
|
var ratio;
|
||
|
|
|
||
|
|
if ($.isFunction(data)) {
|
||
|
|
data = data.call(this.$element);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.built && !this.disabled && $.isPlainObject(data)) {
|
||
|
|
if (isNumber(data.rotate) && data.rotate !== image.rotate &&
|
||
|
|
this.options.rotatable) {
|
||
|
|
|
||
|
|
image.rotate = data.rotate;
|
||
|
|
this.rotated = true;
|
||
|
|
this.renderCanvas(true);
|
||
|
|
}
|
||
|
|
|
||
|
|
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.built ? this.container : {};
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the image position and size data
|
||
|
|
*
|
||
|
|
* @return {Object} data
|
||
|
|
*/
|
||
|
|
getImageData: function () {
|
||
|
|
return this.ready ? this.image : {};
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the canvas position and size data
|
||
|
|
*
|
||
|
|
* @return {Object} data
|
||
|
|
*/
|
||
|
|
getCanvasData: function () {
|
||
|
|
var canvas = this.canvas;
|
||
|
|
var data;
|
||
|
|
|
||
|
|
if (this.built) {
|
||
|
|
data = {
|
||
|
|
left: canvas.left,
|
||
|
|
top: canvas.top,
|
||
|
|
width: canvas.width,
|
||
|
|
height: canvas.height
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
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.built && !this.disabled && $.isPlainObject(data)) {
|
||
|
|
if (isNumber(data.left)) {
|
||
|
|
canvas.left = data.left;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isNumber(data.top)) {
|
||
|
|
canvas.top = data.top;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isNumber(data.width)) {
|
||
|
|
canvas.width = data.width;
|
||
|
|
canvas.height = data.width / aspectRatio;
|
||
|
|
} else if (isNumber(data.height)) {
|
||
|
|
canvas.height = data.height;
|
||
|
|
canvas.width = data.height * aspectRatio;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.renderCanvas(true);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the crop box position and size data
|
||
|
|
*
|
||
|
|
* @return {Object} data
|
||
|
|
*/
|
||
|
|
getCropBoxData: function () {
|
||
|
|
var cropBox = this.cropBox;
|
||
|
|
var data;
|
||
|
|
|
||
|
|
if (this.built && this.cropped) {
|
||
|
|
data = {
|
||
|
|
left: cropBox.left,
|
||
|
|
top: cropBox.top,
|
||
|
|
width: cropBox.width,
|
||
|
|
height: cropBox.height
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
return data || {};
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the crop box position and size with new data
|
||
|
|
*
|
||
|
|
* @param {Object} data
|
||
|
|
*/
|
||
|
|
setCropBoxData: function (data) {
|
||
|
|
var cropBox = this.cropBox;
|
||
|
|
var aspectRatio = this.options.aspectRatio;
|
||
|
|
var widthChanged;
|
||
|
|
var heightChanged;
|
||
|
|
|
||
|
|
if ($.isFunction(data)) {
|
||
|
|
data = data.call(this.$element);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.built && this.cropped && !this.disabled && $.isPlainObject(data)) {
|
||
|
|
|
||
|
|
if (isNumber(data.left)) {
|
||
|
|
cropBox.left = data.left;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isNumber(data.top)) {
|
||
|
|
cropBox.top = data.top;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isNumber(data.width) && data.width !== cropBox.width) {
|
||
|
|
widthChanged = true;
|
||
|
|
cropBox.width = data.width;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isNumber(data.height) && data.height !== cropBox.height) {
|
||
|
|
heightChanged = true;
|
||
|
|
cropBox.height = data.height;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (aspectRatio) {
|
||
|
|
if (widthChanged) {
|
||
|
|
cropBox.height = cropBox.width / aspectRatio;
|
||
|
|
} else if (heightChanged) {
|
||
|
|
cropBox.width = cropBox.height * aspectRatio;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
this.renderCropBox();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a canvas drawn the cropped image
|
||
|
|
*
|
||
|
|
* @param {Object} options (optional)
|
||
|
|
* @return {HTMLCanvasElement} canvas
|
||
|
|
*/
|
||
|
|
getCroppedCanvas: function (options) {
|
||
|
|
var originalWidth;
|
||
|
|
var originalHeight;
|
||
|
|
var canvasWidth;
|
||
|
|
var canvasHeight;
|
||
|
|
var scaledWidth;
|
||
|
|
var scaledHeight;
|
||
|
|
var scaledRatio;
|
||
|
|
var aspectRatio;
|
||
|
|
var canvas;
|
||
|
|
var context;
|
||
|
|
var data;
|
||
|
|
|
||
|
|
if (!this.built || !this.cropped || !SUPPORT_CANVAS) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$.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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
canvasWidth = scaledWidth || originalWidth;
|
||
|
|
canvasHeight = 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);
|
||
|
|
}
|
||
|
|
|
||
|
|
args.push(srcX, srcY, srcWidth, 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(dstX, dstY, dstWidth, 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.disabled && !isUndefined(aspectRatio)) {
|
||
|
|
|
||
|
|
// 0 -> NaN
|
||
|
|
options.aspectRatio = num(aspectRatio) || NaN;
|
||
|
|
|
||
|
|
if (this.built) {
|
||
|
|
this.initCropBox();
|
||
|
|
|
||
|
|
if (this.cropped) {
|
||
|
|
this.renderCropBox();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Change the drag mode
|
||
|
|
*
|
||
|
|
* @param {String} mode (optional)
|
||
|
|
*/
|
||
|
|
setDragMode: function (mode) {
|
||
|
|
var options = this.options;
|
||
|
|
var croppable;
|
||
|
|
var movable;
|
||
|
|
|
||
|
|
if (this.ready && !this.disabled) {
|
||
|
|
croppable = options.dragCrop && mode === ACTION_CROP;
|
||
|
|
movable = options.movable && mode === ACTION_MOVE;
|
||
|
|
mode = (croppable || movable) ? mode : ACTION_NONE;
|
||
|
|
|
||
|
|
this.$dragBox.
|
||
|
|
data('action', mode).
|
||
|
|
toggleClass(CLASS_CROP, croppable).
|
||
|
|
toggleClass(CLASS_MOVE, movable);
|
||
|
|
|
||
|
|
if (!options.cropBoxMovable) {
|
||
|
|
|
||
|
|
// Sync drag mode to crop box when it is not movable(#300)
|
||
|
|
this.$face.
|
||
|
|
data('action', mode).
|
||
|
|
toggleClass(CLASS_CROP, croppable).
|
||
|
|
toggleClass(CLASS_MOVE, movable);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend(Cropper.prototype, prototype);
|
||
|
|
|
||
|
|
Cropper.DEFAULTS = {
|
||
|
|
|
||
|
|
// 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: '',
|
||
|
|
|
||
|
|
// Strict mode, the image cannot zoom out less than the container
|
||
|
|
strict: true,
|
||
|
|
|
||
|
|
// Rebuild when resize the window
|
||
|
|
responsive: true,
|
||
|
|
|
||
|
|
// Check if the target image is cross origin
|
||
|
|
checkImageOrigin: 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 create new crop box by dragging over the image
|
||
|
|
dragCrop: true,
|
||
|
|
|
||
|
|
// 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 wheeling mouse
|
||
|
|
mouseWheelZoom: true,
|
||
|
|
|
||
|
|
// Define zoom ratio when zoom the image by wheeling mouse
|
||
|
|
wheelZoomRatio: 0.1,
|
||
|
|
|
||
|
|
// Enable to zoom the image by dragging touch
|
||
|
|
touchDragZoom: true,
|
||
|
|
|
||
|
|
// Enable to move the crop box
|
||
|
|
cropBoxMovable: true,
|
||
|
|
|
||
|
|
// Enable to resize the crop box
|
||
|
|
cropBoxResizable: true,
|
||
|
|
|
||
|
|
// Toggle drag mode between "crop" and "move" when double click on the cropper
|
||
|
|
doubleClickToggle: 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-canvas"></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 (options) {
|
||
|
|
var args = toArray(arguments, 1);
|
||
|
|
var result;
|
||
|
|
|
||
|
|
this.each(function () {
|
||
|
|
var $this = $(this);
|
||
|
|
var data = $this.data(NAMESPACE);
|
||
|
|
var fn;
|
||
|
|
|
||
|
|
if (!data) {
|
||
|
|
if (/destroy/.test(options)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this.data(NAMESPACE, (data = new Cropper(this, options)));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof options === 'string' && $.isFunction(fn = data[options])) {
|
||
|
|
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;
|
||
|
|
};
|
||
|
|
|
||
|
|
});
|