1597 lines
54 KiB
JavaScript
1597 lines
54 KiB
JavaScript
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/*************************
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* Croppie
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* Copyright 2017
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* Foliotek
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* Version: 2.5.1
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*************************/
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(function (root, factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['exports'], factory);
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} else if (typeof exports === 'object' && typeof exports.nodeName !== 'string') {
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// CommonJS
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factory(exports);
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} else {
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// Browser globals
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factory((root.commonJsStrict = {}));
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}
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}(this, function (exports) {
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/* Polyfills */
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if (typeof Promise !== 'function') {
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/*! promise-polyfill 3.1.0 */
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!function(a){function b(a,b){return function(){a.apply(b,arguments)}}function c(a){if("object"!=typeof this)throw new TypeError("Promises must be constructed via new");if("function"!=typeof a)throw new TypeError("not a function");this._state=null,this._value=null,this._deferreds=[],i(a,b(e,this),b(f,this))}function d(a){var b=this;return null===this._state?void this._deferreds.push(a):void k(function(){var c=b._state?a.onFulfilled:a.onRejected;if(null===c)return void(b._state?a.resolve:a.reject)(b._value);var d;try{d=c(b._value)}catch(e){return void a.reject(e)}a.resolve(d)})}function e(a){try{if(a===this)throw new TypeError("A promise cannot be resolved with itself.");if(a&&("object"==typeof a||"function"==typeof a)){var c=a.then;if("function"==typeof c)return void i(b(c,a),b(e,this),b(f,this))}this._state=!0,this._value=a,g.call(this)}catch(d){f.call(this,d)}}function f(a){this._state=!1,this._value=a,g.call(this)}function g(){for(var a=0,b=this._deferreds.length;b>a;a++)d.call(this,this._deferreds[a]);this._deferreds=null}function h(a,b,c,d){this.onFulfilled="function"==typeof a?a:null,this.onRejected="function"==typeof b?b:null,this.resolve=c,this.reject=d}function i(a,b,c){var d=!1;try{a(function(a){d||(d=!0,b(a))},function(a){d||(d=!0,c(a))})}catch(e){if(d)return;d=!0,c(e)}}var j=setTimeout,k="function"==typeof setImmediate&&setImmediate||function(a){j(a,1)},l=Array.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)};c.prototype["catch"]=function(a){return this.then(null,a)},c.prototype.then=function(a,b){var e=this;return new c(function(c,f){d.call(e,new h(a,b,c,f))})},c.all=function(){var a=Array.prototype.slice.call(1===arguments.length&&l(arguments[0])?arguments[0]:arguments);return new c(function(b,c){function d(f,g){try{if(g&&("object"==typeof g||"function"==typeof g)){var h=g.then;if("function"==typeof h)return void h.call(g,function(a){d(f,a)},c)}a[f]=g,0===--e&&b(a)}catch(i){c(i)}}if(0===a.length)return b([]);for(var e=a.length,f=0;f<a.length;f++)d(f,a[f])})},c.resolve=function(a){return a&&"object"==typeof a&&a.constructor===c?a:new c(function(b){b(a)})},c.reject=function(a){return new c(function(b,c){c(a)})},c.race=function(a){return new c(function(b,c){for(var d=0,e=a.length;e>d;d++)a[d].then(b,c)})},c._setImmediateFn=function(a){k=a},"undefined"!=typeof module&&module.exports?module.exports=c:a.Promise||(a.Promise=c)}(this);
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}
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if ( typeof window.CustomEvent !== "function" ) {
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(function(){
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function CustomEvent ( event, params ) {
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params = params || { bubbles: false, cancelable: false, detail: undefined };
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var evt = document.createEvent( 'CustomEvent' );
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evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail );
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return evt;
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}
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CustomEvent.prototype = window.Event.prototype;
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window.CustomEvent = CustomEvent;
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}());
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}
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if (!HTMLCanvasElement.prototype.toBlob) {
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Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
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value: function (callback, type, quality) {
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var binStr = atob( this.toDataURL(type, quality).split(',')[1] ),
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len = binStr.length,
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arr = new Uint8Array(len);
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for (var i=0; i<len; i++ ) {
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arr[i] = binStr.charCodeAt(i);
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}
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callback( new Blob( [arr], {type: type || 'image/png'} ) );
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}
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});
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}
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/* End Polyfills */
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var cssPrefixes = ['Webkit', 'Moz', 'ms'],
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emptyStyles = document.createElement('div').style,
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CSS_TRANS_ORG,
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CSS_TRANSFORM,
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CSS_USERSELECT;
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function vendorPrefix(prop) {
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if (prop in emptyStyles) {
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return prop;
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}
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var capProp = prop[0].toUpperCase() + prop.slice(1),
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i = cssPrefixes.length;
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while (i--) {
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prop = cssPrefixes[i] + capProp;
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if (prop in emptyStyles) {
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return prop;
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}
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}
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}
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CSS_TRANSFORM = vendorPrefix('transform');
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CSS_TRANS_ORG = vendorPrefix('transformOrigin');
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CSS_USERSELECT = vendorPrefix('userSelect');
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// Credits to : Andrew Dupont - http://andrewdupont.net/2009/08/28/deep-extending-objects-in-javascript/
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function deepExtend(destination, source) {
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destination = destination || {};
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for (var property in source) {
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if (source[property] && source[property].constructor && source[property].constructor === Object) {
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destination[property] = destination[property] || {};
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deepExtend(destination[property], source[property]);
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} else {
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destination[property] = source[property];
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}
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}
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return destination;
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}
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function debounce(func, wait, immediate) {
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var timeout;
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return function () {
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var context = this, args = arguments;
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var later = function () {
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timeout = null;
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if (!immediate) func.apply(context, args);
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};
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var callNow = immediate && !timeout;
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clearTimeout(timeout);
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timeout = setTimeout(later, wait);
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if (callNow) func.apply(context, args);
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};
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}
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function dispatchChange(element) {
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if ("createEvent" in document) {
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var evt = document.createEvent("HTMLEvents");
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evt.initEvent("change", false, true);
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element.dispatchEvent(evt);
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}
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else {
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element.fireEvent("onchange");
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}
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}
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//http://jsperf.com/vanilla-css
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function css(el, styles, val) {
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if (typeof (styles) === 'string') {
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var tmp = styles;
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styles = {};
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styles[tmp] = val;
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}
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for (var prop in styles) {
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el.style[prop] = styles[prop];
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}
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}
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function addClass(el, c) {
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if (el.classList) {
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el.classList.add(c);
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}
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else {
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el.className += ' ' + c;
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}
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}
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function removeClass(el, c) {
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if (el.classList) {
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el.classList.remove(c);
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}
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else {
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el.className = el.className.replace(c, '');
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}
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}
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function setAttributes(el, attrs) {
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for (var key in attrs) {
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el.setAttribute(key, attrs[key]);
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}
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}
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function num(v) {
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return parseInt(v, 10);
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}
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/* Utilities */
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function loadImage(src, imageEl, doExif) {
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var img = imageEl || new Image();
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img.style.opacity = 0;
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return new Promise(function (resolve) {
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function _resolve() {
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setTimeout(function(){
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resolve(img);
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}, 1);
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}
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if (img.src === src) {// If image source hasn't changed resolve immediately
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_resolve();
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return;
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}
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img.exifdata = null;
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img.removeAttribute('crossOrigin');
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if (src.match(/^(file|https)?:\/\/|^\/\//)) {
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img.setAttribute('crossOrigin', 'anonymous');
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}
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img.onload = function () {
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if (doExif) {
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EXIF.getData(img, function () {
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_resolve();
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});
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}
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else {
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_resolve();
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}
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};
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img.src = src;
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});
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}
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function naturalImageDimensions(img) {
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var w = img.naturalWidth;
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var h = img.naturalHeight;
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if (img.exifdata && img.exifdata.Orientation >= 5) {
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var x= w;
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w = h;
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h = x;
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}
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return { width: w, height: h };
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}
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/* CSS Transform Prototype */
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var TRANSLATE_OPTS = {
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'translate3d': {
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suffix: ', 0px'
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},
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'translate': {
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suffix: ''
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}
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};
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var Transform = function (x, y, scale) {
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this.x = parseFloat(x);
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this.y = parseFloat(y);
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this.scale = parseFloat(scale);
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};
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Transform.parse = function (v) {
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if (v.style) {
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return Transform.parse(v.style[CSS_TRANSFORM]);
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}
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else if (v.indexOf('matrix') > -1 || v.indexOf('none') > -1) {
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return Transform.fromMatrix(v);
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}
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else {
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return Transform.fromString(v);
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}
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};
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Transform.fromMatrix = function (v) {
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var vals = v.substring(7).split(',');
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if (!vals.length || v === 'none') {
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vals = [1, 0, 0, 1, 0, 0];
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}
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return new Transform(num(vals[4]), num(vals[5]), parseFloat(vals[0]));
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};
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Transform.fromString = function (v) {
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var values = v.split(') '),
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translate = values[0].substring(Croppie.globals.translate.length + 1).split(','),
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scale = values.length > 1 ? values[1].substring(6) : 1,
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x = translate.length > 1 ? translate[0] : 0,
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y = translate.length > 1 ? translate[1] : 0;
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return new Transform(x, y, scale);
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};
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Transform.prototype.toString = function () {
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var suffix = TRANSLATE_OPTS[Croppie.globals.translate].suffix || '';
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return Croppie.globals.translate + '(' + this.x + 'px, ' + this.y + 'px' + suffix + ') scale(' + this.scale + ')';
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};
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var TransformOrigin = function (el) {
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if (!el || !el.style[CSS_TRANS_ORG]) {
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this.x = 0;
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this.y = 0;
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return;
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}
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var css = el.style[CSS_TRANS_ORG].split(' ');
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this.x = parseFloat(css[0]);
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this.y = parseFloat(css[1]);
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};
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TransformOrigin.prototype.toString = function () {
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return this.x + 'px ' + this.y + 'px';
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};
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function getExifOrientation (img) {
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return img.exifdata.Orientation;
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}
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function drawCanvas(canvas, img, orientation) {
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var width = img.width,
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height = img.height,
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ctx = canvas.getContext('2d');
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canvas.width = img.width;
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canvas.height = img.height;
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ctx.save();
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switch (orientation) {
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case 2:
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ctx.translate(width, 0);
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ctx.scale(-1, 1);
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break;
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case 3:
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ctx.translate(width, height);
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ctx.rotate(180*Math.PI/180);
|
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break;
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case 4:
|
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ctx.translate(0, height);
|
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ctx.scale(1, -1);
|
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break;
|
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case 5:
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canvas.width = height;
|
||
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canvas.height = width;
|
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ctx.rotate(90*Math.PI/180);
|
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ctx.scale(1, -1);
|
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break;
|
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case 6:
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canvas.width = height;
|
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canvas.height = width;
|
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ctx.rotate(90*Math.PI/180);
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ctx.translate(0, -height);
|
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break;
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case 7:
|
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canvas.width = height;
|
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canvas.height = width;
|
||
|
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ctx.rotate(-90*Math.PI/180);
|
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ctx.translate(-width, height);
|
||
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ctx.scale(1, -1);
|
||
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break;
|
||
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||
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case 8:
|
||
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canvas.width = height;
|
||
|
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canvas.height = width;
|
||
|
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ctx.translate(0, width);
|
||
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ctx.rotate(-90*Math.PI/180);
|
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|
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break;
|
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|
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}
|
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ctx.drawImage(img, 0,0, width, height);
|
||
|
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ctx.restore();
|
||
|
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}
|
||
|
|
|
||
|
|
/* Private Methods */
|
||
|
|
function _create() {
|
||
|
|
var self = this,
|
||
|
|
contClass = 'croppie-container',
|
||
|
|
customViewportClass = self.options.viewport.type ? 'cr-vp-' + self.options.viewport.type : null,
|
||
|
|
boundary, img, viewport, overlay, bw, bh;
|
||
|
|
|
||
|
|
self.options.useCanvas = self.options.enableOrientation || _hasExif.call(self);
|
||
|
|
// Properties on class
|
||
|
|
self.data = {};
|
||
|
|
self.elements = {};
|
||
|
|
|
||
|
|
boundary = self.elements.boundary = document.createElement('div');
|
||
|
|
viewport = self.elements.viewport = document.createElement('div');
|
||
|
|
img = self.elements.img = document.createElement('img');
|
||
|
|
overlay = self.elements.overlay = document.createElement('div');
|
||
|
|
|
||
|
|
if (self.options.useCanvas) {
|
||
|
|
self.elements.canvas = document.createElement('canvas');
|
||
|
|
self.elements.preview = self.elements.canvas;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
self.elements.preview = self.elements.img;
|
||
|
|
}
|
||
|
|
|
||
|
|
addClass(boundary, 'cr-boundary');
|
||
|
|
boundary.setAttribute('aria-dropeffect', 'none');
|
||
|
|
bw = self.options.boundary.width;
|
||
|
|
bh = self.options.boundary.height;
|
||
|
|
css(boundary, {
|
||
|
|
width: (bw + (isNaN(bw) ? '' : 'px')),
|
||
|
|
height: (bh + (isNaN(bh) ? '' : 'px'))
|
||
|
|
});
|
||
|
|
|
||
|
|
addClass(viewport, 'cr-viewport');
|
||
|
|
if (customViewportClass) {
|
||
|
|
addClass(viewport, customViewportClass);
|
||
|
|
}
|
||
|
|
css(viewport, {
|
||
|
|
width: self.options.viewport.width + 'px',
|
||
|
|
height: self.options.viewport.height + 'px'
|
||
|
|
});
|
||
|
|
viewport.setAttribute('tabindex', 0);
|
||
|
|
|
||
|
|
addClass(self.elements.preview, 'cr-image');
|
||
|
|
setAttributes(self.elements.preview, { 'alt': 'preview', 'aria-grabbed': 'false' });
|
||
|
|
addClass(overlay, 'cr-overlay');
|
||
|
|
|
||
|
|
self.element.appendChild(boundary);
|
||
|
|
boundary.appendChild(self.elements.preview);
|
||
|
|
boundary.appendChild(viewport);
|
||
|
|
boundary.appendChild(overlay);
|
||
|
|
|
||
|
|
addClass(self.element, contClass);
|
||
|
|
if (self.options.customClass) {
|
||
|
|
addClass(self.element, self.options.customClass);
|
||
|
|
}
|
||
|
|
|
||
|
|
_initDraggable.call(this);
|
||
|
|
|
||
|
|
if (self.options.enableZoom) {
|
||
|
|
_initializeZoom.call(self);
|
||
|
|
}
|
||
|
|
|
||
|
|
// if (self.options.enableOrientation) {
|
||
|
|
// _initRotationControls.call(self);
|
||
|
|
// }
|
||
|
|
|
||
|
|
if (self.options.enableResize) {
|
||
|
|
_initializeResize.call(self);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// function _initRotationControls () {
|
||
|
|
// var self = this,
|
||
|
|
// wrap, btnLeft, btnRight, iLeft, iRight;
|
||
|
|
|
||
|
|
// wrap = document.createElement('div');
|
||
|
|
// self.elements.orientationBtnLeft = btnLeft = document.createElement('button');
|
||
|
|
// self.elements.orientationBtnRight = btnRight = document.createElement('button');
|
||
|
|
|
||
|
|
// wrap.appendChild(btnLeft);
|
||
|
|
// wrap.appendChild(btnRight);
|
||
|
|
|
||
|
|
// iLeft = document.createElement('i');
|
||
|
|
// iRight = document.createElement('i');
|
||
|
|
// btnLeft.appendChild(iLeft);
|
||
|
|
// btnRight.appendChild(iRight);
|
||
|
|
|
||
|
|
// addClass(wrap, 'cr-rotate-controls');
|
||
|
|
// addClass(btnLeft, 'cr-rotate-l');
|
||
|
|
// addClass(btnRight, 'cr-rotate-r');
|
||
|
|
|
||
|
|
// self.elements.boundary.appendChild(wrap);
|
||
|
|
|
||
|
|
// btnLeft.addEventListener('click', function () {
|
||
|
|
// self.rotate(-90);
|
||
|
|
// });
|
||
|
|
// btnRight.addEventListener('click', function () {
|
||
|
|
// self.rotate(90);
|
||
|
|
// });
|
||
|
|
// }
|
||
|
|
|
||
|
|
function _hasExif() {
|
||
|
|
return this.options.enableExif && window.EXIF;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _initializeResize () {
|
||
|
|
var self = this;
|
||
|
|
var wrap = document.createElement('div');
|
||
|
|
var isDragging = false;
|
||
|
|
var direction;
|
||
|
|
var originalX;
|
||
|
|
var originalY;
|
||
|
|
var minSize = 50;
|
||
|
|
var maxWidth;
|
||
|
|
var maxHeight;
|
||
|
|
var vr;
|
||
|
|
var hr;
|
||
|
|
|
||
|
|
addClass(wrap, 'cr-resizer');
|
||
|
|
css(wrap, {
|
||
|
|
width: this.options.viewport.width + 'px',
|
||
|
|
height: this.options.viewport.height + 'px'
|
||
|
|
});
|
||
|
|
|
||
|
|
if (this.options.resizeControls.height) {
|
||
|
|
vr = document.createElement('div');
|
||
|
|
addClass(vr, 'cr-resizer-vertical');
|
||
|
|
wrap.appendChild(vr);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.options.resizeControls.width) {
|
||
|
|
hr = document.createElement('div');
|
||
|
|
addClass(hr, 'cr-resizer-horisontal');
|
||
|
|
wrap.appendChild(hr);
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseDown(ev) {
|
||
|
|
if (ev.button !== undefined && ev.button !== 0) return;
|
||
|
|
|
||
|
|
ev.preventDefault();
|
||
|
|
if (isDragging) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var overlayRect = self.elements.overlay.getBoundingClientRect();
|
||
|
|
|
||
|
|
isDragging = true;
|
||
|
|
originalX = ev.pageX;
|
||
|
|
originalY = ev.pageY;
|
||
|
|
direction = ev.currentTarget.className.indexOf('vertical') !== -1 ? 'v' : 'h';
|
||
|
|
maxWidth = overlayRect.width;
|
||
|
|
maxHeight = overlayRect.height;
|
||
|
|
|
||
|
|
if (ev.touches) {
|
||
|
|
var touches = ev.touches[0];
|
||
|
|
originalX = touches.pageX;
|
||
|
|
originalY = touches.pageY;
|
||
|
|
}
|
||
|
|
|
||
|
|
window.addEventListener('mousemove', mouseMove);
|
||
|
|
window.addEventListener('touchmove', mouseMove);
|
||
|
|
window.addEventListener('mouseup', mouseUp);
|
||
|
|
window.addEventListener('touchend', mouseUp);
|
||
|
|
document.body.style[CSS_USERSELECT] = 'none';
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseMove(ev) {
|
||
|
|
var pageX = ev.pageX;
|
||
|
|
var pageY = ev.pageY;
|
||
|
|
|
||
|
|
ev.preventDefault();
|
||
|
|
|
||
|
|
if (ev.touches) {
|
||
|
|
var touches = ev.touches[0];
|
||
|
|
pageX = touches.pageX;
|
||
|
|
pageY = touches.pageY;
|
||
|
|
}
|
||
|
|
|
||
|
|
var deltaX = pageX - originalX;
|
||
|
|
var deltaY = pageY - originalY;
|
||
|
|
var newHeight = self.options.viewport.height + deltaY;
|
||
|
|
var newWidth = self.options.viewport.width + deltaX;
|
||
|
|
|
||
|
|
if (direction === 'v' && newHeight >= minSize && newHeight <= maxHeight) {
|
||
|
|
css(wrap, {
|
||
|
|
height: newHeight + 'px'
|
||
|
|
});
|
||
|
|
|
||
|
|
self.options.boundary.height += deltaY;
|
||
|
|
css(self.elements.boundary, {
|
||
|
|
height: self.options.boundary.height + 'px'
|
||
|
|
});
|
||
|
|
|
||
|
|
self.options.viewport.height += deltaY;
|
||
|
|
css(self.elements.viewport, {
|
||
|
|
height: self.options.viewport.height + 'px'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
else if (direction === 'h' && newWidth >= minSize && newWidth <= maxWidth) {
|
||
|
|
css(wrap, {
|
||
|
|
width: newWidth + 'px'
|
||
|
|
});
|
||
|
|
|
||
|
|
self.options.boundary.width += deltaX;
|
||
|
|
css(self.elements.boundary, {
|
||
|
|
width: self.options.boundary.width + 'px'
|
||
|
|
});
|
||
|
|
|
||
|
|
self.options.viewport.width += deltaX;
|
||
|
|
css(self.elements.viewport, {
|
||
|
|
width: self.options.viewport.width + 'px'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
_updateOverlay.call(self);
|
||
|
|
_updateZoomLimits.call(self);
|
||
|
|
_updateCenterPoint.call(self);
|
||
|
|
_triggerUpdate.call(self);
|
||
|
|
originalY = pageY;
|
||
|
|
originalX = pageX;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseUp() {
|
||
|
|
isDragging = false;
|
||
|
|
window.removeEventListener('mousemove', mouseMove);
|
||
|
|
window.removeEventListener('touchmove', mouseMove);
|
||
|
|
window.removeEventListener('mouseup', mouseUp);
|
||
|
|
window.removeEventListener('touchend', mouseUp);
|
||
|
|
document.body.style[CSS_USERSELECT] = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vr) {
|
||
|
|
vr.addEventListener('mousedown', mouseDown);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (hr) {
|
||
|
|
hr.addEventListener('mousedown', mouseDown);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.elements.boundary.appendChild(wrap);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _setZoomerVal(v) {
|
||
|
|
if (this.options.enableZoom) {
|
||
|
|
var z = this.elements.zoomer,
|
||
|
|
val = fix(v, 4);
|
||
|
|
|
||
|
|
z.value = Math.max(z.min, Math.min(z.max, val));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function _initializeZoom() {
|
||
|
|
var self = this,
|
||
|
|
wrap = self.elements.zoomerWrap = document.createElement('div'),
|
||
|
|
zoomer = self.elements.zoomer = document.createElement('input');
|
||
|
|
|
||
|
|
addClass(wrap, 'cr-slider-wrap');
|
||
|
|
addClass(zoomer, 'cr-slider');
|
||
|
|
zoomer.type = 'range';
|
||
|
|
zoomer.step = '0.0001';
|
||
|
|
zoomer.value = 1;
|
||
|
|
zoomer.style.display = self.options.showZoomer ? '' : 'none';
|
||
|
|
zoomer.setAttribute('aria-label', 'zoom');
|
||
|
|
|
||
|
|
self.element.appendChild(wrap);
|
||
|
|
wrap.appendChild(zoomer);
|
||
|
|
|
||
|
|
self._currentZoom = 1;
|
||
|
|
|
||
|
|
function change() {
|
||
|
|
_onZoom.call(self, {
|
||
|
|
value: parseFloat(zoomer.value),
|
||
|
|
origin: new TransformOrigin(self.elements.preview),
|
||
|
|
viewportRect: self.elements.viewport.getBoundingClientRect(),
|
||
|
|
transform: Transform.parse(self.elements.preview)
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function scroll(ev) {
|
||
|
|
var delta, targetZoom;
|
||
|
|
|
||
|
|
if (ev.wheelDelta) {
|
||
|
|
delta = ev.wheelDelta / 1200; //wheelDelta min: -120 max: 120 // max x 10 x 2
|
||
|
|
} else if (ev.deltaY) {
|
||
|
|
delta = ev.deltaY / 1060; //deltaY min: -53 max: 53 // max x 10 x 2
|
||
|
|
} else if (ev.detail) {
|
||
|
|
delta = ev.detail / -60; //delta min: -3 max: 3 // max x 10 x 2
|
||
|
|
} else {
|
||
|
|
delta = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
targetZoom = self._currentZoom + (delta * self._currentZoom);
|
||
|
|
|
||
|
|
ev.preventDefault();
|
||
|
|
_setZoomerVal.call(self, targetZoom);
|
||
|
|
change.call(self);
|
||
|
|
}
|
||
|
|
|
||
|
|
self.elements.zoomer.addEventListener('input', change);// this is being fired twice on keypress
|
||
|
|
self.elements.zoomer.addEventListener('change', change);
|
||
|
|
|
||
|
|
if (self.options.mouseWheelZoom) {
|
||
|
|
self.elements.boundary.addEventListener('mousewheel', scroll);
|
||
|
|
self.elements.boundary.addEventListener('DOMMouseScroll', scroll);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function _onZoom(ui) {
|
||
|
|
var self = this,
|
||
|
|
transform = ui ? ui.transform : Transform.parse(self.elements.preview),
|
||
|
|
vpRect = ui ? ui.viewportRect : self.elements.viewport.getBoundingClientRect(),
|
||
|
|
origin = ui ? ui.origin : new TransformOrigin(self.elements.preview);
|
||
|
|
|
||
|
|
function applyCss() {
|
||
|
|
var transCss = {};
|
||
|
|
transCss[CSS_TRANSFORM] = transform.toString();
|
||
|
|
transCss[CSS_TRANS_ORG] = origin.toString();
|
||
|
|
css(self.elements.preview, transCss);
|
||
|
|
}
|
||
|
|
|
||
|
|
self._currentZoom = ui ? ui.value : self._currentZoom;
|
||
|
|
transform.scale = self._currentZoom;
|
||
|
|
self.elements.zoomer.setAttribute('aria-valuenow', self._currentZoom);
|
||
|
|
applyCss();
|
||
|
|
|
||
|
|
if (self.options.enforceBoundary) {
|
||
|
|
var boundaries = _getVirtualBoundaries.call(self, vpRect),
|
||
|
|
transBoundaries = boundaries.translate,
|
||
|
|
oBoundaries = boundaries.origin;
|
||
|
|
|
||
|
|
if (transform.x >= transBoundaries.maxX) {
|
||
|
|
origin.x = oBoundaries.minX;
|
||
|
|
transform.x = transBoundaries.maxX;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (transform.x <= transBoundaries.minX) {
|
||
|
|
origin.x = oBoundaries.maxX;
|
||
|
|
transform.x = transBoundaries.minX;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (transform.y >= transBoundaries.maxY) {
|
||
|
|
origin.y = oBoundaries.minY;
|
||
|
|
transform.y = transBoundaries.maxY;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (transform.y <= transBoundaries.minY) {
|
||
|
|
origin.y = oBoundaries.maxY;
|
||
|
|
transform.y = transBoundaries.minY;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
applyCss();
|
||
|
|
_debouncedOverlay.call(self);
|
||
|
|
_triggerUpdate.call(self);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _getVirtualBoundaries(viewport) {
|
||
|
|
var self = this,
|
||
|
|
scale = self._currentZoom,
|
||
|
|
vpWidth = viewport.width,
|
||
|
|
vpHeight = viewport.height,
|
||
|
|
centerFromBoundaryX = self.elements.boundary.clientWidth / 2,
|
||
|
|
centerFromBoundaryY = self.elements.boundary.clientHeight / 2,
|
||
|
|
imgRect = self.elements.preview.getBoundingClientRect(),
|
||
|
|
curImgWidth = imgRect.width,
|
||
|
|
curImgHeight = imgRect.height,
|
||
|
|
halfWidth = vpWidth / 2,
|
||
|
|
halfHeight = vpHeight / 2;
|
||
|
|
|
||
|
|
var maxX = ((halfWidth / scale) - centerFromBoundaryX) * -1;
|
||
|
|
var minX = maxX - ((curImgWidth * (1 / scale)) - (vpWidth * (1 / scale)));
|
||
|
|
|
||
|
|
var maxY = ((halfHeight / scale) - centerFromBoundaryY) * -1;
|
||
|
|
var minY = maxY - ((curImgHeight * (1 / scale)) - (vpHeight * (1 / scale)));
|
||
|
|
|
||
|
|
var originMinX = (1 / scale) * halfWidth;
|
||
|
|
var originMaxX = (curImgWidth * (1 / scale)) - originMinX;
|
||
|
|
|
||
|
|
var originMinY = (1 / scale) * halfHeight;
|
||
|
|
var originMaxY = (curImgHeight * (1 / scale)) - originMinY;
|
||
|
|
|
||
|
|
return {
|
||
|
|
translate: {
|
||
|
|
maxX: maxX,
|
||
|
|
minX: minX,
|
||
|
|
maxY: maxY,
|
||
|
|
minY: minY
|
||
|
|
},
|
||
|
|
origin: {
|
||
|
|
maxX: originMaxX,
|
||
|
|
minX: originMinX,
|
||
|
|
maxY: originMaxY,
|
||
|
|
minY: originMinY
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function _updateCenterPoint() {
|
||
|
|
var self = this,
|
||
|
|
scale = self._currentZoom,
|
||
|
|
data = self.elements.preview.getBoundingClientRect(),
|
||
|
|
vpData = self.elements.viewport.getBoundingClientRect(),
|
||
|
|
transform = Transform.parse(self.elements.preview.style[CSS_TRANSFORM]),
|
||
|
|
pc = new TransformOrigin(self.elements.preview),
|
||
|
|
top = (vpData.top - data.top) + (vpData.height / 2),
|
||
|
|
left = (vpData.left - data.left) + (vpData.width / 2),
|
||
|
|
center = {},
|
||
|
|
adj = {};
|
||
|
|
|
||
|
|
center.y = top / scale;
|
||
|
|
center.x = left / scale;
|
||
|
|
|
||
|
|
adj.y = (center.y - pc.y) * (1 - scale);
|
||
|
|
adj.x = (center.x - pc.x) * (1 - scale);
|
||
|
|
|
||
|
|
transform.x -= adj.x;
|
||
|
|
transform.y -= adj.y;
|
||
|
|
|
||
|
|
var newCss = {};
|
||
|
|
newCss[CSS_TRANS_ORG] = center.x + 'px ' + center.y + 'px';
|
||
|
|
newCss[CSS_TRANSFORM] = transform.toString();
|
||
|
|
css(self.elements.preview, newCss);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _initDraggable() {
|
||
|
|
var self = this,
|
||
|
|
isDragging = false,
|
||
|
|
originalX,
|
||
|
|
originalY,
|
||
|
|
originalDistance,
|
||
|
|
vpRect,
|
||
|
|
transform;
|
||
|
|
|
||
|
|
function assignTransformCoordinates(deltaX, deltaY) {
|
||
|
|
var imgRect = self.elements.preview.getBoundingClientRect(),
|
||
|
|
top = transform.y + deltaY,
|
||
|
|
left = transform.x + deltaX;
|
||
|
|
|
||
|
|
if (self.options.enforceBoundary) {
|
||
|
|
if (vpRect.top > imgRect.top + deltaY && vpRect.bottom < imgRect.bottom + deltaY) {
|
||
|
|
transform.y = top;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vpRect.left > imgRect.left + deltaX && vpRect.right < imgRect.right + deltaX) {
|
||
|
|
transform.x = left;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
transform.y = top;
|
||
|
|
transform.x = left;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function toggleGrabState(isDragging) {
|
||
|
|
self.elements.preview.setAttribute('aria-grabbed', isDragging);
|
||
|
|
self.elements.boundary.setAttribute('aria-dropeffect', isDragging? 'move': 'none');
|
||
|
|
}
|
||
|
|
|
||
|
|
function keyDown(ev) {
|
||
|
|
var LEFT_ARROW = 37,
|
||
|
|
UP_ARROW = 38,
|
||
|
|
RIGHT_ARROW = 39,
|
||
|
|
DOWN_ARROW = 40;
|
||
|
|
|
||
|
|
if (ev.shiftKey && (ev.keyCode == UP_ARROW || ev.keyCode == DOWN_ARROW)) {
|
||
|
|
var zoom = 0.0;
|
||
|
|
if (ev.keyCode == UP_ARROW) {
|
||
|
|
zoom = parseFloat(self.elements.zoomer.value, 10) + parseFloat(self.elements.zoomer.step, 10)
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
zoom = parseFloat(self.elements.zoomer.value, 10) - parseFloat(self.elements.zoomer.step, 10)
|
||
|
|
}
|
||
|
|
self.setZoom(zoom);
|
||
|
|
}
|
||
|
|
else if (self.options.enableKeyMovement && (ev.keyCode >= 37 && ev.keyCode <= 40)) {
|
||
|
|
ev.preventDefault();
|
||
|
|
var movement = parseKeyDown(ev.keyCode);
|
||
|
|
|
||
|
|
transform = Transform.parse(self.elements.preview);
|
||
|
|
document.body.style[CSS_USERSELECT] = 'none';
|
||
|
|
vpRect = self.elements.viewport.getBoundingClientRect();
|
||
|
|
keyMove(movement);
|
||
|
|
};
|
||
|
|
|
||
|
|
function parseKeyDown(key) {
|
||
|
|
switch (key) {
|
||
|
|
case LEFT_ARROW:
|
||
|
|
return [1, 0];
|
||
|
|
case UP_ARROW:
|
||
|
|
return [0, 1];
|
||
|
|
case RIGHT_ARROW:
|
||
|
|
return [-1, 0];
|
||
|
|
case DOWN_ARROW:
|
||
|
|
return [0, -1];
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function keyMove(movement) {
|
||
|
|
var deltaX = movement[0],
|
||
|
|
deltaY = movement[1],
|
||
|
|
newCss = {};
|
||
|
|
|
||
|
|
assignTransformCoordinates(deltaX, deltaY);
|
||
|
|
|
||
|
|
newCss[CSS_TRANSFORM] = transform.toString();
|
||
|
|
css(self.elements.preview, newCss);
|
||
|
|
_updateOverlay.call(self);
|
||
|
|
document.body.style[CSS_USERSELECT] = '';
|
||
|
|
_updateCenterPoint.call(self);
|
||
|
|
_triggerUpdate.call(self);
|
||
|
|
originalDistance = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseDown(ev) {
|
||
|
|
if (ev.button !== undefined && ev.button !== 0) return;
|
||
|
|
|
||
|
|
ev.preventDefault();
|
||
|
|
if (isDragging) return;
|
||
|
|
isDragging = true;
|
||
|
|
originalX = ev.pageX;
|
||
|
|
originalY = ev.pageY;
|
||
|
|
|
||
|
|
if (ev.touches) {
|
||
|
|
var touches = ev.touches[0];
|
||
|
|
originalX = touches.pageX;
|
||
|
|
originalY = touches.pageY;
|
||
|
|
}
|
||
|
|
toggleGrabState(isDragging);
|
||
|
|
transform = Transform.parse(self.elements.preview);
|
||
|
|
window.addEventListener('mousemove', mouseMove);
|
||
|
|
window.addEventListener('touchmove', mouseMove);
|
||
|
|
window.addEventListener('mouseup', mouseUp);
|
||
|
|
window.addEventListener('touchend', mouseUp);
|
||
|
|
document.body.style[CSS_USERSELECT] = 'none';
|
||
|
|
vpRect = self.elements.viewport.getBoundingClientRect();
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseMove(ev) {
|
||
|
|
ev.preventDefault();
|
||
|
|
var pageX = ev.pageX,
|
||
|
|
pageY = ev.pageY;
|
||
|
|
|
||
|
|
if (ev.touches) {
|
||
|
|
var touches = ev.touches[0];
|
||
|
|
pageX = touches.pageX;
|
||
|
|
pageY = touches.pageY;
|
||
|
|
}
|
||
|
|
|
||
|
|
var deltaX = pageX - originalX,
|
||
|
|
deltaY = pageY - originalY,
|
||
|
|
newCss = {};
|
||
|
|
|
||
|
|
if (ev.type == 'touchmove') {
|
||
|
|
if (ev.touches.length > 1) {
|
||
|
|
var touch1 = ev.touches[0];
|
||
|
|
var touch2 = ev.touches[1];
|
||
|
|
var dist = Math.sqrt((touch1.pageX - touch2.pageX) * (touch1.pageX - touch2.pageX) + (touch1.pageY - touch2.pageY) * (touch1.pageY - touch2.pageY));
|
||
|
|
|
||
|
|
if (!originalDistance) {
|
||
|
|
originalDistance = dist / self._currentZoom;
|
||
|
|
}
|
||
|
|
|
||
|
|
var scale = dist / originalDistance;
|
||
|
|
|
||
|
|
_setZoomerVal.call(self, scale);
|
||
|
|
dispatchChange(self.elements.zoomer);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
assignTransformCoordinates(deltaX, deltaY);
|
||
|
|
|
||
|
|
newCss[CSS_TRANSFORM] = transform.toString();
|
||
|
|
css(self.elements.preview, newCss);
|
||
|
|
_updateOverlay.call(self);
|
||
|
|
originalY = pageY;
|
||
|
|
originalX = pageX;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseUp() {
|
||
|
|
isDragging = false;
|
||
|
|
toggleGrabState(isDragging);
|
||
|
|
window.removeEventListener('mousemove', mouseMove);
|
||
|
|
window.removeEventListener('touchmove', mouseMove);
|
||
|
|
window.removeEventListener('mouseup', mouseUp);
|
||
|
|
window.removeEventListener('touchend', mouseUp);
|
||
|
|
document.body.style[CSS_USERSELECT] = '';
|
||
|
|
_updateCenterPoint.call(self);
|
||
|
|
_triggerUpdate.call(self);
|
||
|
|
originalDistance = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
self.elements.overlay.addEventListener('mousedown', mouseDown);
|
||
|
|
self.elements.viewport.addEventListener('keydown', keyDown);
|
||
|
|
self.elements.overlay.addEventListener('touchstart', mouseDown);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _updateOverlay() {
|
||
|
|
var self = this,
|
||
|
|
boundRect = self.elements.boundary.getBoundingClientRect(),
|
||
|
|
imgData = self.elements.preview.getBoundingClientRect();
|
||
|
|
|
||
|
|
css(self.elements.overlay, {
|
||
|
|
width: imgData.width + 'px',
|
||
|
|
height: imgData.height + 'px',
|
||
|
|
top: (imgData.top - boundRect.top) + 'px',
|
||
|
|
left: (imgData.left - boundRect.left) + 'px'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
var _debouncedOverlay = debounce(_updateOverlay, 500);
|
||
|
|
|
||
|
|
function _triggerUpdate() {
|
||
|
|
var self = this,
|
||
|
|
data = self.get(),
|
||
|
|
ev;
|
||
|
|
|
||
|
|
if (!_isVisible.call(self)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
self.options.update.call(self, data);
|
||
|
|
if (self.$ && typeof Prototype == 'undefined') {
|
||
|
|
self.$(self.element).trigger('update', data);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
var ev;
|
||
|
|
if (window.CustomEvent) {
|
||
|
|
ev = new CustomEvent('update', { detail: data });
|
||
|
|
} else {
|
||
|
|
ev = document.createEvent('CustomEvent');
|
||
|
|
ev.initCustomEvent('update', true, true, data);
|
||
|
|
}
|
||
|
|
|
||
|
|
self.element.dispatchEvent(ev);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function _isVisible() {
|
||
|
|
return this.elements.preview.offsetHeight > 0 && this.elements.preview.offsetWidth > 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _updatePropertiesFromImage() {
|
||
|
|
var self = this,
|
||
|
|
initialZoom = 1,
|
||
|
|
cssReset = {},
|
||
|
|
img = self.elements.preview,
|
||
|
|
imgData = null,
|
||
|
|
transformReset = new Transform(0, 0, initialZoom),
|
||
|
|
originReset = new TransformOrigin(),
|
||
|
|
isVisible = _isVisible.call(self);
|
||
|
|
|
||
|
|
if (!isVisible || self.data.bound) {
|
||
|
|
// if the croppie isn't visible or it doesn't need binding
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
self.data.bound = true;
|
||
|
|
cssReset[CSS_TRANSFORM] = transformReset.toString();
|
||
|
|
cssReset[CSS_TRANS_ORG] = originReset.toString();
|
||
|
|
cssReset['opacity'] = 1;
|
||
|
|
css(img, cssReset);
|
||
|
|
|
||
|
|
imgData = self.elements.preview.getBoundingClientRect();
|
||
|
|
|
||
|
|
self._originalImageWidth = imgData.width;
|
||
|
|
self._originalImageHeight = imgData.height;
|
||
|
|
|
||
|
|
if (self.options.enableZoom) {
|
||
|
|
_updateZoomLimits.call(self, true);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
self._currentZoom = initialZoom;
|
||
|
|
}
|
||
|
|
|
||
|
|
transformReset.scale = self._currentZoom;
|
||
|
|
cssReset[CSS_TRANSFORM] = transformReset.toString();
|
||
|
|
css(img, cssReset);
|
||
|
|
|
||
|
|
if (self.data.points.length) {
|
||
|
|
_bindPoints.call(self, self.data.points);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
_centerImage.call(self);
|
||
|
|
}
|
||
|
|
|
||
|
|
_updateCenterPoint.call(self);
|
||
|
|
_updateOverlay.call(self);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _updateZoomLimits (initial) {
|
||
|
|
var self = this,
|
||
|
|
minZoom = 0,
|
||
|
|
maxZoom = 1.5,
|
||
|
|
initialZoom,
|
||
|
|
defaultInitialZoom,
|
||
|
|
zoomer = self.elements.zoomer,
|
||
|
|
scale = parseFloat(zoomer.value),
|
||
|
|
boundaryData = self.elements.boundary.getBoundingClientRect(),
|
||
|
|
imgData = self.elements.preview.getBoundingClientRect(),
|
||
|
|
vpData = self.elements.viewport.getBoundingClientRect(),
|
||
|
|
minW,
|
||
|
|
minH;
|
||
|
|
|
||
|
|
if (self.options.enforceBoundary) {
|
||
|
|
minW = vpData.width / (initial ? imgData.width : imgData.width / scale);
|
||
|
|
minH = vpData.height / (initial ? imgData.height : imgData.height / scale);
|
||
|
|
minZoom = Math.max(minW, minH);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (minZoom >= maxZoom) {
|
||
|
|
maxZoom = minZoom + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
zoomer.min = fix(minZoom, 4);
|
||
|
|
zoomer.max = fix(maxZoom, 4);
|
||
|
|
|
||
|
|
if (initial) {
|
||
|
|
defaultInitialZoom = Math.max((boundaryData.width / imgData.width), (boundaryData.height / imgData.height));
|
||
|
|
initialZoom = self.data.boundZoom !== null ? self.data.boundZoom : defaultInitialZoom;
|
||
|
|
_setZoomerVal.call(self, initialZoom);
|
||
|
|
}
|
||
|
|
|
||
|
|
dispatchChange(zoomer);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _bindPoints(points) {
|
||
|
|
if (points.length != 4) {
|
||
|
|
throw "Croppie - Invalid number of points supplied: " + points;
|
||
|
|
}
|
||
|
|
var self = this,
|
||
|
|
pointsWidth = points[2] - points[0],
|
||
|
|
// pointsHeight = points[3] - points[1],
|
||
|
|
vpData = self.elements.viewport.getBoundingClientRect(),
|
||
|
|
boundRect = self.elements.boundary.getBoundingClientRect(),
|
||
|
|
vpOffset = {
|
||
|
|
left: vpData.left - boundRect.left,
|
||
|
|
top: vpData.top - boundRect.top
|
||
|
|
},
|
||
|
|
scale = vpData.width / pointsWidth,
|
||
|
|
originTop = points[1],
|
||
|
|
originLeft = points[0],
|
||
|
|
transformTop = (-1 * points[1]) + vpOffset.top,
|
||
|
|
transformLeft = (-1 * points[0]) + vpOffset.left,
|
||
|
|
newCss = {};
|
||
|
|
|
||
|
|
newCss[CSS_TRANS_ORG] = originLeft + 'px ' + originTop + 'px';
|
||
|
|
newCss[CSS_TRANSFORM] = new Transform(transformLeft, transformTop, scale).toString();
|
||
|
|
css(self.elements.preview, newCss);
|
||
|
|
|
||
|
|
_setZoomerVal.call(self, scale);
|
||
|
|
self._currentZoom = scale;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _centerImage() {
|
||
|
|
var self = this,
|
||
|
|
imgDim = self.elements.preview.getBoundingClientRect(),
|
||
|
|
vpDim = self.elements.viewport.getBoundingClientRect(),
|
||
|
|
boundDim = self.elements.boundary.getBoundingClientRect(),
|
||
|
|
vpLeft = vpDim.left - boundDim.left,
|
||
|
|
vpTop = vpDim.top - boundDim.top,
|
||
|
|
w = vpLeft - ((imgDim.width - vpDim.width) / 2),
|
||
|
|
h = vpTop - ((imgDim.height - vpDim.height) / 2),
|
||
|
|
transform = new Transform(w, h, self._currentZoom);
|
||
|
|
|
||
|
|
css(self.elements.preview, CSS_TRANSFORM, transform.toString());
|
||
|
|
}
|
||
|
|
|
||
|
|
function _transferImageToCanvas(customOrientation) {
|
||
|
|
var self = this,
|
||
|
|
canvas = self.elements.canvas,
|
||
|
|
img = self.elements.img,
|
||
|
|
ctx = canvas.getContext('2d'),
|
||
|
|
exif = _hasExif.call(self),
|
||
|
|
customOrientation = self.options.enableOrientation && customOrientation;
|
||
|
|
|
||
|
|
ctx.clearRect(0, 0, canvas.width, canvas.height);
|
||
|
|
canvas.width = img.width;
|
||
|
|
canvas.height = img.height;
|
||
|
|
|
||
|
|
if (exif && !customOrientation) {
|
||
|
|
var orientation = getExifOrientation(img);
|
||
|
|
drawCanvas(canvas, img, num(orientation || 0, 10));
|
||
|
|
}
|
||
|
|
else if (customOrientation) {
|
||
|
|
drawCanvas(canvas, img, customOrientation);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function _getCanvas(data) {
|
||
|
|
var self = this,
|
||
|
|
points = data.points,
|
||
|
|
left = num(points[0]),
|
||
|
|
top = num(points[1]),
|
||
|
|
right = num(points[2]),
|
||
|
|
bottom = num(points[3]),
|
||
|
|
width = right-left,
|
||
|
|
height = bottom-top,
|
||
|
|
circle = data.circle,
|
||
|
|
canvas = document.createElement('canvas'),
|
||
|
|
ctx = canvas.getContext('2d'),
|
||
|
|
outWidth = width,
|
||
|
|
outHeight = height,
|
||
|
|
startX = 0,
|
||
|
|
startY = 0,
|
||
|
|
canvasWidth = outWidth,
|
||
|
|
canvasHeight = outHeight,
|
||
|
|
customDimensions = (data.outputWidth && data.outputHeight),
|
||
|
|
outputWidthRatio = 1;
|
||
|
|
outputHeightRatio = 1;
|
||
|
|
|
||
|
|
if (customDimensions) {
|
||
|
|
canvasWidth = data.outputWidth;
|
||
|
|
canvasHeight = data.outputHeight;
|
||
|
|
outputWidthRatio = canvasWidth / outWidth;
|
||
|
|
outputHeightRatio = canvasHeight / outHeight;
|
||
|
|
}
|
||
|
|
|
||
|
|
canvas.width = canvasWidth;
|
||
|
|
canvas.height = canvasHeight;
|
||
|
|
|
||
|
|
if (data.backgroundColor) {
|
||
|
|
ctx.fillStyle = data.backgroundColor;
|
||
|
|
ctx.fillRect(0, 0, canvasWidth, canvasHeight);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// start fixing data to send to draw image for enforceBoundary: false
|
||
|
|
if (!self.options.enforceBoundary) {
|
||
|
|
if (left < 0) {
|
||
|
|
startX = Math.abs(left);
|
||
|
|
left = 0;
|
||
|
|
}
|
||
|
|
if (top < 0) {
|
||
|
|
startY = Math.abs(top);
|
||
|
|
top = 0;
|
||
|
|
}
|
||
|
|
if (right > self._originalImageWidth) {
|
||
|
|
width = self._originalImageWidth - left;
|
||
|
|
outWidth = width;
|
||
|
|
}
|
||
|
|
if (bottom > self._originalImageHeight) {
|
||
|
|
height = self._originalImageHeight - top;
|
||
|
|
outHeight = height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
width=Math.min(width, self._originalImageWidth);
|
||
|
|
height=Math.min(height, self._originalImageHeight)
|
||
|
|
}
|
||
|
|
|
||
|
|
if (outputWidthRatio !== 1 || outputHeightRatio !== 1) {
|
||
|
|
startX *= outputWidthRatio;
|
||
|
|
startY *= outputHeightRatio;
|
||
|
|
outWidth *= outputWidthRatio;
|
||
|
|
outHeight *= outputHeightRatio;
|
||
|
|
}
|
||
|
|
ctx.drawImage(this.elements.preview, left, top, width, height, startX, startY, outWidth, outHeight);
|
||
|
|
if (circle) {
|
||
|
|
ctx.fillStyle = '#fff';
|
||
|
|
ctx.globalCompositeOperation = 'destination-in';
|
||
|
|
ctx.beginPath();
|
||
|
|
ctx.arc(outWidth / 2, outHeight / 2, outWidth / 2, 0, Math.PI * 2, true);
|
||
|
|
ctx.closePath();
|
||
|
|
ctx.fill();
|
||
|
|
}
|
||
|
|
return canvas;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _getHtmlResult(data) {
|
||
|
|
var points = data.points,
|
||
|
|
div = document.createElement('div'),
|
||
|
|
img = document.createElement('img'),
|
||
|
|
width = points[2] - points[0],
|
||
|
|
height = points[3] - points[1];
|
||
|
|
|
||
|
|
addClass(div, 'croppie-result');
|
||
|
|
div.appendChild(img);
|
||
|
|
css(img, {
|
||
|
|
left: (-1 * points[0]) + 'px',
|
||
|
|
top: (-1 * points[1]) + 'px'
|
||
|
|
});
|
||
|
|
img.src = data.url;
|
||
|
|
css(div, {
|
||
|
|
width: width + 'px',
|
||
|
|
height: height + 'px'
|
||
|
|
});
|
||
|
|
|
||
|
|
return div;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _getBase64Result(data) {
|
||
|
|
return _getCanvas.call(this, data).toDataURL(data.format, data.quality);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _getBlobResult(data) {
|
||
|
|
var self = this;
|
||
|
|
return new Promise(function (resolve, reject) {
|
||
|
|
_getCanvas.call(self, data).toBlob(function (blob) {
|
||
|
|
resolve(blob);
|
||
|
|
}, data.format, data.quality);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function _bind(options, cb) {
|
||
|
|
var self = this,
|
||
|
|
url,
|
||
|
|
points = [],
|
||
|
|
zoom = null,
|
||
|
|
hasExif = _hasExif.call(self);;
|
||
|
|
|
||
|
|
if (typeof (options) === 'string') {
|
||
|
|
url = options;
|
||
|
|
options = {};
|
||
|
|
}
|
||
|
|
else if (Array.isArray(options)) {
|
||
|
|
points = options.slice();
|
||
|
|
}
|
||
|
|
else if (typeof (options) == 'undefined' && self.data.url) { //refreshing
|
||
|
|
_updatePropertiesFromImage.call(self);
|
||
|
|
_triggerUpdate.call(self);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
url = options.url;
|
||
|
|
points = options.points || [];
|
||
|
|
zoom = typeof(options.zoom) === 'undefined' ? null : options.zoom;
|
||
|
|
}
|
||
|
|
|
||
|
|
self.data.bound = false;
|
||
|
|
self.data.url = url || self.data.url;
|
||
|
|
self.data.boundZoom = zoom;
|
||
|
|
|
||
|
|
return loadImage(url, self.elements.img, hasExif).then(function (img) {
|
||
|
|
if (!points.length) {
|
||
|
|
var natDim = naturalImageDimensions(img);
|
||
|
|
var rect = self.elements.viewport.getBoundingClientRect();
|
||
|
|
var aspectRatio = rect.width / rect.height;
|
||
|
|
var imgAspectRatio = natDim.width / natDim.height;
|
||
|
|
var width, height;
|
||
|
|
|
||
|
|
if (imgAspectRatio > aspectRatio) {
|
||
|
|
height = natDim.height;
|
||
|
|
width = height * aspectRatio;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
width = natDim.width;
|
||
|
|
height = width / aspectRatio;
|
||
|
|
}
|
||
|
|
|
||
|
|
var x0 = (natDim.width - width) / 2;
|
||
|
|
var y0 = (natDim.height - height) / 2;
|
||
|
|
var x1 = x0 + width;
|
||
|
|
var y1 = y0 + height;
|
||
|
|
|
||
|
|
self.data.points = [x0, y0, x1, y1];
|
||
|
|
}
|
||
|
|
else if (self.options.relative) {
|
||
|
|
points = [
|
||
|
|
points[0] * img.naturalWidth / 100,
|
||
|
|
points[1] * img.naturalHeight / 100,
|
||
|
|
points[2] * img.naturalWidth / 100,
|
||
|
|
points[3] * img.naturalHeight / 100
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
self.data.points = points.map(function (p) {
|
||
|
|
return parseFloat(p);
|
||
|
|
});
|
||
|
|
if (self.options.useCanvas) {
|
||
|
|
_transferImageToCanvas.call(self, options.orientation || 1);
|
||
|
|
}
|
||
|
|
_updatePropertiesFromImage.call(self);
|
||
|
|
_triggerUpdate.call(self);
|
||
|
|
cb && cb();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function fix(v, decimalPoints) {
|
||
|
|
return parseFloat(v).toFixed(decimalPoints || 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _get() {
|
||
|
|
var self = this,
|
||
|
|
imgData = self.elements.preview.getBoundingClientRect(),
|
||
|
|
vpData = self.elements.viewport.getBoundingClientRect(),
|
||
|
|
x1 = vpData.left - imgData.left,
|
||
|
|
y1 = vpData.top - imgData.top,
|
||
|
|
widthDiff = (vpData.width - self.elements.viewport.offsetWidth) / 2, //border
|
||
|
|
heightDiff = (vpData.height - self.elements.viewport.offsetHeight) / 2,
|
||
|
|
x2 = x1 + self.elements.viewport.offsetWidth + widthDiff,
|
||
|
|
y2 = y1 + self.elements.viewport.offsetHeight + heightDiff,
|
||
|
|
scale = self._currentZoom;
|
||
|
|
|
||
|
|
if (scale === Infinity || isNaN(scale)) {
|
||
|
|
scale = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
var max = self.options.enforceBoundary ? 0 : Number.NEGATIVE_INFINITY;
|
||
|
|
x1 = Math.max(max, x1 / scale);
|
||
|
|
y1 = Math.max(max, y1 / scale);
|
||
|
|
x2 = Math.max(max, x2 / scale);
|
||
|
|
y2 = Math.max(max, y2 / scale);
|
||
|
|
|
||
|
|
return {
|
||
|
|
points: [fix(x1), fix(y1), fix(x2), fix(y2)],
|
||
|
|
zoom: scale
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
var RESULT_DEFAULTS = {
|
||
|
|
type: 'canvas',
|
||
|
|
format: 'png',
|
||
|
|
quality: 1
|
||
|
|
},
|
||
|
|
RESULT_FORMATS = ['jpeg', 'webp', 'png'];
|
||
|
|
|
||
|
|
function _result(options) {
|
||
|
|
var self = this,
|
||
|
|
data = _get.call(self),
|
||
|
|
opts = deepExtend(RESULT_DEFAULTS, deepExtend({}, options)),
|
||
|
|
resultType = (typeof (options) === 'string' ? options : (opts.type || 'base64')),
|
||
|
|
size = opts.size || 'viewport',
|
||
|
|
format = opts.format,
|
||
|
|
quality = opts.quality,
|
||
|
|
backgroundColor = opts.backgroundColor,
|
||
|
|
circle = typeof opts.circle === 'boolean' ? opts.circle : (self.options.viewport.type === 'circle'),
|
||
|
|
vpRect = self.elements.viewport.getBoundingClientRect(),
|
||
|
|
ratio = vpRect.width / vpRect.height,
|
||
|
|
prom;
|
||
|
|
|
||
|
|
if (size === 'viewport') {
|
||
|
|
data.outputWidth = vpRect.width;
|
||
|
|
data.outputHeight = vpRect.height;
|
||
|
|
} else if (typeof size === 'object') {
|
||
|
|
if (size.width && size.height) {
|
||
|
|
data.outputWidth = size.width;
|
||
|
|
data.outputHeight = size.height;
|
||
|
|
} else if (size.width) {
|
||
|
|
data.outputWidth = size.width;
|
||
|
|
data.outputHeight = size.width / ratio;
|
||
|
|
} else if (size.height) {
|
||
|
|
data.outputWidth = size.height * ratio;
|
||
|
|
data.outputHeight = size.height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (RESULT_FORMATS.indexOf(format) > -1) {
|
||
|
|
data.format = 'image/' + format;
|
||
|
|
data.quality = quality;
|
||
|
|
}
|
||
|
|
|
||
|
|
data.circle = circle;
|
||
|
|
data.url = self.data.url;
|
||
|
|
data.backgroundColor = backgroundColor;
|
||
|
|
|
||
|
|
prom = new Promise(function (resolve, reject) {
|
||
|
|
switch(resultType.toLowerCase())
|
||
|
|
{
|
||
|
|
case 'rawcanvas':
|
||
|
|
resolve(_getCanvas.call(self, data));
|
||
|
|
break;
|
||
|
|
case 'canvas':
|
||
|
|
case 'base64':
|
||
|
|
resolve(_getBase64Result.call(self, data));
|
||
|
|
break;
|
||
|
|
case 'blob':
|
||
|
|
_getBlobResult.call(self, data).then(resolve);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
resolve(_getHtmlResult.call(self, data));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return prom;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _refresh() {
|
||
|
|
_updatePropertiesFromImage.call(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _rotate(deg) {
|
||
|
|
if (!this.options.useCanvas) {
|
||
|
|
throw 'Croppie: Cannot rotate without enableOrientation';
|
||
|
|
}
|
||
|
|
|
||
|
|
var self = this,
|
||
|
|
canvas = self.elements.canvas,
|
||
|
|
copy = document.createElement('canvas'),
|
||
|
|
ornt = 1;
|
||
|
|
|
||
|
|
copy.width = canvas.width;
|
||
|
|
copy.height = canvas.height;
|
||
|
|
var ctx = copy.getContext('2d');
|
||
|
|
ctx.drawImage(canvas, 0, 0);
|
||
|
|
|
||
|
|
if (deg === 90 || deg === -270) ornt = 6;
|
||
|
|
if (deg === -90 || deg === 270) ornt = 8;
|
||
|
|
if (deg === 180 || deg === -180) ornt = 3;
|
||
|
|
|
||
|
|
drawCanvas(canvas, copy, ornt);
|
||
|
|
_onZoom.call(self);
|
||
|
|
copy = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _destroy() {
|
||
|
|
var self = this;
|
||
|
|
self.element.removeChild(self.elements.boundary);
|
||
|
|
removeClass(self.element, 'croppie-container');
|
||
|
|
if (self.options.enableZoom) {
|
||
|
|
self.element.removeChild(self.elements.zoomerWrap);
|
||
|
|
}
|
||
|
|
delete self.elements;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (window.jQuery) {
|
||
|
|
var $ = window.jQuery;
|
||
|
|
$.fn.croppie = function (opts) {
|
||
|
|
var ot = typeof opts;
|
||
|
|
|
||
|
|
if (ot === 'string') {
|
||
|
|
var args = Array.prototype.slice.call(arguments, 1);
|
||
|
|
var singleInst = $(this).data('croppie');
|
||
|
|
|
||
|
|
if (opts === 'get') {
|
||
|
|
return singleInst.get();
|
||
|
|
}
|
||
|
|
else if (opts === 'result') {
|
||
|
|
return singleInst.result.apply(singleInst, args);
|
||
|
|
}
|
||
|
|
else if (opts === 'bind') {
|
||
|
|
return singleInst.bind.apply(singleInst, args);
|
||
|
|
}
|
||
|
|
|
||
|
|
return this.each(function () {
|
||
|
|
var i = $(this).data('croppie');
|
||
|
|
if (!i) return;
|
||
|
|
|
||
|
|
var method = i[opts];
|
||
|
|
if ($.isFunction(method)) {
|
||
|
|
method.apply(i, args);
|
||
|
|
if (opts === 'destroy') {
|
||
|
|
$(this).removeData('croppie');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
throw 'Croppie ' + opts + ' method not found';
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return this.each(function () {
|
||
|
|
var i = new Croppie(this, opts);
|
||
|
|
i.$ = $;
|
||
|
|
$(this).data('croppie', i);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function Croppie(element, opts) {
|
||
|
|
this.element = element;
|
||
|
|
this.options = deepExtend(deepExtend({}, Croppie.defaults), opts);
|
||
|
|
|
||
|
|
if (this.element.tagName.toLowerCase() === 'img') {
|
||
|
|
var origImage = this.element;
|
||
|
|
addClass(origImage, 'cr-original-image');
|
||
|
|
setAttributes(origImage, {'aria-hidden' : 'true', 'alt' : '' });
|
||
|
|
var replacementDiv = document.createElement('div');
|
||
|
|
this.element.parentNode.appendChild(replacementDiv);
|
||
|
|
replacementDiv.appendChild(origImage);
|
||
|
|
this.element = replacementDiv;
|
||
|
|
this.options.url = this.options.url || origImage.src;
|
||
|
|
}
|
||
|
|
|
||
|
|
_create.call(this);
|
||
|
|
if (this.options.url) {
|
||
|
|
var bindOpts = {
|
||
|
|
url: this.options.url,
|
||
|
|
points: this.options.points
|
||
|
|
};
|
||
|
|
delete this.options['url'];
|
||
|
|
delete this.options['points'];
|
||
|
|
_bind.call(this, bindOpts);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Croppie.defaults = {
|
||
|
|
viewport: {
|
||
|
|
width: 100,
|
||
|
|
height: 100,
|
||
|
|
type: 'square'
|
||
|
|
},
|
||
|
|
boundary: { },
|
||
|
|
orientationControls: {
|
||
|
|
enabled: true,
|
||
|
|
leftClass: '',
|
||
|
|
rightClass: ''
|
||
|
|
},
|
||
|
|
resizeControls: {
|
||
|
|
width: true,
|
||
|
|
height: true
|
||
|
|
},
|
||
|
|
customClass: '',
|
||
|
|
showZoomer: true,
|
||
|
|
enableZoom: true,
|
||
|
|
enableResize: false,
|
||
|
|
mouseWheelZoom: true,
|
||
|
|
enableExif: false,
|
||
|
|
enforceBoundary: true,
|
||
|
|
enableOrientation: false,
|
||
|
|
enableKeyMovement: true,
|
||
|
|
update: function () { }
|
||
|
|
};
|
||
|
|
|
||
|
|
Croppie.globals = {
|
||
|
|
translate: 'translate3d'
|
||
|
|
};
|
||
|
|
|
||
|
|
deepExtend(Croppie.prototype, {
|
||
|
|
bind: function (options, cb) {
|
||
|
|
return _bind.call(this, options, cb);
|
||
|
|
},
|
||
|
|
get: function () {
|
||
|
|
var data = _get.call(this);
|
||
|
|
var points = data.points;
|
||
|
|
if (this.options.relative) {
|
||
|
|
points[0] /= this.elements.img.naturalWidth / 100;
|
||
|
|
points[1] /= this.elements.img.naturalHeight / 100;
|
||
|
|
points[2] /= this.elements.img.naturalWidth / 100;
|
||
|
|
points[3] /= this.elements.img.naturalHeight / 100;
|
||
|
|
}
|
||
|
|
return data;
|
||
|
|
},
|
||
|
|
result: function (type) {
|
||
|
|
return _result.call(this, type);
|
||
|
|
},
|
||
|
|
refresh: function () {
|
||
|
|
return _refresh.call(this);
|
||
|
|
},
|
||
|
|
setZoom: function (v) {
|
||
|
|
_setZoomerVal.call(this, v);
|
||
|
|
dispatchChange(this.elements.zoomer);
|
||
|
|
},
|
||
|
|
rotate: function (deg) {
|
||
|
|
_rotate.call(this, deg);
|
||
|
|
},
|
||
|
|
destroy: function () {
|
||
|
|
return _destroy.call(this);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
exports.Croppie = window.Croppie = Croppie;
|
||
|
|
|
||
|
|
if (typeof module === 'object' && !!module.exports) {
|
||
|
|
module.exports = Croppie;
|
||
|
|
}
|
||
|
|
}));
|