一个小白程序员第一次写博客？
程序员文章站
2024-03-18 15:17:04
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一个小白程序员第一次写博客？
写什么呢？只能说对于我这个脑子不太聪明的人来说，真的太难太难了吖
先来说一说，我当时为什么要学开发吧，其实我也不知道为什么，可能是对这个行业的不了解，也可能是当时真的没有喜欢的专业吧，后悔吗？当然 当然不后悔是假的呀，一个不太聪明的女生学这个干嘛呀？真的是！！！
我是今年六月份毕业，到今天为止，我工作了一个多月了吧，是四月六号入的职，其实啊。我没想到我能找到工作，怎么说呢，我是幸运的，又或是不幸运的，因为做了工作之后，我就再也开心不起来了。
遇到新功能代码不会自己写，遇到bug自己也不会解决，写代码非常非常慢，而且我还非常内向，不怎么喜欢问问题，问了当时听懂了，然后上手去写却又不知从何写起，hai真的好难。我想要放弃了，之后不更了，那就是因为我辞职转行了了，或者是被辞了。哈哈哈哈！没错，我对自己就是没什么信心。
先记录一个layui_cropper裁剪图片的功能吧
注：（不是特别完美呀，一个限制裁框大小没有完成好）
首先呢，需要引入组件：croppers.js(怎么放这个文件，我不会，直接复制吧)
还有一个是样式，cropper.css(这个layui官网就有，直接下载就行)
这是三个上传图片，每个上传的大小要求不同，
所以在这个原生的组件中改了一些东西，
就是给了他唯一id,用特殊样式标出来吧（不知道怎么标注）
/*!
* Cropper v3.0.0
*/
//import { log } from "util";
layui.config({
base: '/Scripts/cropper/' //layui自定义layui组件目录
}).define(['jquery','layer','cropper'],function (exports) {
var $ = layui.jquery
, layer = layui.layer;
var cropper = layui.cropper;
var obj = {
render: function(e){
var self = this,
elem = e.elem,
saveW = e.saveW,
saveH = e.saveH,
mark = e.mark,
area = e.area,
url = e.url,
done = e.done,
type = e.type,
setData = e.setData,
_id = new Date().getTime();//新加的唯一id _id相关的就是新加的
var html = "<link rel=\"stylesheet\" href=\"/Scripts/cropper/cropper.css\">\n" +
"<div class=\"layui-fluid showImgEdit\" style=\"display: none\">\n" +
" <div class=\"layui-form-item\">\n" +
" <div class=\"layui-input-inline layui-btn-container\" style=\"width: 100px;\">\n" +
" <label for=\""+_id+'2'+"\" style=\"width: 100px;margin-left:500px;margin-top:15px;color:red\" class=\"layui-btn layui-btn-primary\">\n" +
" 选择图片\n" +
" </label>\n" +
" <input class=\"layui-upload-file\" id=\""+_id+'2'+"\" type=\"file\" value=\"选择图片\" name=\"file\">\n" +
" </div>\n" +
" <div class=\"layui-form-mid layui-word-aux\"></div>\n" +
" </div>\n" +
" <div class=\"layui-row layui-col-space15\">\n" +
" <div class=\"layui-col-xs9\">\n" +
" <div class=\"readyimg\" style=\"height:450px;background-color: rgb(247, 247, 247);\">\n" +
" <img id=\"" + (_id + '1') +"\" src=\"\" class=\"readyimg\">\n" +
" </div>\n" +
" </div>\n" +
" <div class=\"layui-col-xs3\">\n" +
" <div class=\"img-preview\" style=\"width:200px;height:200px;overflow:hidden\">\n" +
" </div>\n" +
" </div>\n" +
" </div>\n" +
" <div class=\"layui-row layui-col-space15\">\n" +
" <div class=\"layui-col-xs9\">\n" +
" <div class=\"layui-row\">\n" +
" <div class=\"layui-col-xs6\">\n" +
" <button type=\"button\" style=\"margin:0px;width:100px\" class=\"layui-btn layui-icon layui-icon-left\" cropper-event=\"rotate\" data-option=\"-15\" title=\"Rotate -90 degrees\"> 向左旋转</button>\n" +
" <button type=\"button\" style=\"width:100px\" class=\"layui-btn layui-icon layui-icon-left\" cropper-event=\"rotate\" data-option=\"15\" title=\"Rotate 90 degrees\"> 向右旋转</button>\n" +
" </div>\n" +
" <div class=\"layui-col-xs5\" style=\"text-align: center;\">\n" +
" <button type=\"button\" style=\"margin-left: -310px;width:100px\" class=\"layui-btn \" cropper-event=\"reset\" title=\"\">重置图片</button>\n" +
" </div>\n" +
" </div>\n" +
" </div>\n" +
" <div class=\"layui-col-xs3\">\n" +
" <button class=\"layui-btn layui-btn-fluid\" style=\"margin-left: -280px;width:100px\" cropper-event=\"confirmSave\" type=\"button\"> 保存修改</button>\n" +
" </div>\n" +
" </div>\n" +
"\n" +
"</div>";
$('body').append('<span id="' + _id + '">' + html + '</span>');
var content = $("#" + _id +" .showImgEdit")/* $('.showImgEdit')*/
, image = $("#" + _id +" .showImgEdit .readyimg img")
, preview = $("#" + _id +" .showImgEdit .img-preview")
, file = $("#" + _id +" .showImgEdit input[name='file']")
, options = {
aspectRatio: mark, preview: preview, viewMode: 1};
let iframe_id = null;
$(elem).on('click',function () {
layer.open({
type: 1
, content: content
, area: area
, success: function (item) {
iframe_id = item.attr('id');
image.cropper(options);
//$('.readyimg').cropper('setCropBoxData', { width: 160, height: 60 });
//
}
, cancel: function (index) {
layer.close(index);
image.cropper('destroy');
}
});
});
$("#"+_id+" .layui-btn").on('click', function () {
var event = $(this).attr("cropper-event");
//监听确认保存图像
if (event === 'confirmSave') {
image.cropper("getCroppedCanvas", {
width: 160,
height: 60,
imageSmoothingEnabled: false,
imageSmoothingQuality: 'high',
}).toBlob(function(blob){
var formData=new FormData();
formData.append('file', blob, 'head.jpg');
formData.append('type', type);
$.ajax({
method:"post",
url: url, //用于文件上传的服务器端请求地址
data: formData,
dataType:'json',
processData: false,
contentType: false,
success: function (result) {
console.log(result)
if (result.result == "success") {
layer.msg("上传成功",
{ icon: 1, time: 1000 }
, function () {
parent.layer.closeAll();
})
return done(result);
}else if(result.code == -1){
layer.alert(result.msg,{icon: 2});
}
}
});
});
//监听旋转
}else if(event === 'rotate'){
var option = $(this).attr('data-option');
image.cropper('rotate', option);
//重设图片
}else if(event === 'reset'){
image.cropper('reset');
}
//文件选择
file.change(function () {
var r= new FileReader();
var f=this.files[0];
r.readAsDataURL(f);
r.onload = function (e) {
image.cropper('destroy').attr('src', this.result).cropper(options)
};
//do {
// if ($('.cropper-crop-box').length<0
//} while (true);
});
});
}
};
exports('croppers', obj);
});
这是上传图片的页面
<div id="showFile_name" style="display:none;margin-left:-150px;">
<div style="margin-left:15px;">
<p>个人签名：</p>
<div class="layui-upload" style="background-color:white;border-radius:5px">
<div class="layui-upload-list">
<img class="layui-upload-img" src="" id="fileImg" alt="" width="160" height="60">
<p id="demoText"></p>
</div>
</div>
<button type="button" class="layui-btn" id="upload" style="background-color:#3b7cd8">上传</button>
</div>
<div style="margin-left:15px">
<p>私章：</p>
<div class="layui-upload" style="background-color:white;border-radius:5px">
<div class="layui-upload-list">
<img class="layui-upload-img" id="fileImg1" alt="" width="160" height="60">
<p id="demoText1"></p>
</div>
</div>
<button type="button" class="layui-btn" id="upload1" style="background-color:#3b7cd8">上传</button>
</div>
<div style="margin-left:15px">
<p>公章：</p>
<div class="layui-upload" style="background-color:white;border-radius:5px">
<div class="layui-upload-list">
<img class="layui-upload-img" id="fileImg2" alt="" width="260" height="260">
<p id="demoText2"></p>
</div>
</div>
<button type="button" class="layui-btn" id="upload2" style="background-color:#3b7cd8">上传</button>
</div>
</div>
这是上传的ajax
$.ajax({
url: 'GetVisa',
data: { userpwd: userpwd },
dataType: 'json',
success: function (data) {
if (data.result == 'success') {
data = data.data;
$('#pwdCheck').css('display', 'none');
$('#showFile_name').css('display', 'block');
$('#fileImg').attr('src', data.username);
$('#fileImg1').attr('src', data.personvisa);
$('#fileImg2').attr('src', data.departvisa);
layui.use('upload', function () {
var upload = layui.upload;
layui.config({
base: '/Scripts/cropper/' //layui自定义layui组件目录
}).use(['upload', 'form', 'croppers'], function () {
var $ = layui.jquery
, upload = layui.upload
, form = layui.form
, croppers = layui.croppers
, layer = layui.layer;
// 创建监听函数
var xhrOnProgress = function (fun) {
xhrOnProgress.onprogress = fun; //绑定监听
//使用闭包实现监听绑
return function () {
//通过$.ajaxSettings.xhr();获得XMLHttpRequest对象
var xhr = $.ajaxSettings.xhr();
//判断监听函数是否为函数
if (typeof xhrOnProgress.onprogress !== 'function')
return xhr;
//如果有监听函数并且xhr对象支持绑定时就把监听函数绑定上去
if (xhrOnProgress.onprogress && xhr.upload) {
xhr.upload.onprogress = xhrOnProgress.onprogress;
}
return xhr;
}
}
//创建一个上传组件
croppers.render({
elem: '#upload'
, url: 'EditFile?id=' + data.id//图片上传接口返回和（layui 的upload 模块）返回的JOSN一样
, xhr: xhrOnProgress
,type:'username'
, width: 160 //保存宽度
, height: 60
, mark: 8 / 3 //选取比例
, area: ['850px', '70%'] //弹窗宽度
, accept: 'file' //普通文件
, exts: 'jpg|jpeg|png|JPG|JPEG|PNG'//只允许上传图片
, done: function (result) { //上传完毕回调
$('#fileImg').attr('src', result.src); //成功返回路径存到数据库
}
});
croppers.render({
elem: '#upload1'
, url: 'EditFile?id=' + data.id //图片上传接口返回和（layui 的upload 模块）返回的JOSN一样
, width: 160 //保存宽度
, height: 60
, type: 'personvisa'
, mark: 8 / 3 //选取比例
, area: ['850px', '70%'] //弹窗宽度
, accept: 'file' //普通文件
, exts: 'jpg|jpeg|png|JPG|JPEG|PNG'//只允许上传图片
, done: function (result) { //上传完毕回调
$('#fileImg1').attr('src', result.src); //成功返回路径存到数据库
}
});
croppers.render({
elem: '#upload2'
, url: 'EditFile?id=' + data.id //图片上传接口返回和（layui 的upload 模块）返回的JOSN一样
, width: 260 //保存宽度
, height: 260
, type: 'departvisa'
, mark: 1 / 1 //选取比例
, area: ['850px', '70%'] //弹窗宽度
, accept: 'file' //普通文件
, exts: 'jpg|jpeg|png|JPG|JPEG|PNG'//只允许上传图片
, done: function (result) { //上传完毕回调
$('#fileImg2').attr('src', result.src); //成功返回路径存到数据库
}
, error: function () {
//演示失败状态，并实现重传
var demoText = $('#demoText2');
demoText.html('<span style="color: #FF5722;">上传失败</span> <a class="layui-btn layui-btn-xs demo-reload">重试</a>');
demoText.find('.demo-reload').on('click', function () {
uploadInst.upload();
});
}
});
});
})
}
else {
alert(data.data);
}
}
});
就这些，没有了，要是想要限制裁剪按框的大小，需要再cropper.js组件中设置，因为现在还没有解决，先不写了！以后成功了再补充。组件就是下面的，好长，前面的属性作用在网上可以查到
/*!
* Cropper v3.0.0
*/
layui.define(['jquery'], function (exports) {
var $ = layui.jquery;
$ = $ && $.hasOwnProperty('default') ? $['default'] : $;
var DEFAULTS = {
// Define the view mode of the cropper
viewMode: 0, // 0, 1, 2, 3
// Define the dragging mode of the cropper
dragMode: 'crop', // 'crop', 'move' or 'none'
// Define the aspect ratio of the crop box
aspectRatio: NaN,
// An object with the previous cropping result data
data: null,
// A selector for adding extra containers to preview
preview: '',
// Re-render the cropper when resize the window
responsive: true,
// Restore the cropped area after resize the window
restore: true,
// Check if the current image is a cross-origin image
checkCrossOrigin: true,
// Check the current image's Exif Orientation information
checkOrientation: true,
// Show the black modal
modal: true,
// Show the dashed lines for guiding
guides: true,
// Show the center indicator for guiding
center: true,
// Show the white modal to highlight the crop box
highlight: true,
// Show the grid background
background: true,
// Enable to crop the image automatically when initialize
autoCrop: true,
// Define the percentage of automatic cropping area when initializes
autoCropArea: 0.8,
// Enable to move the image
movable: true,
// Enable to rotate the image
rotatable: true,
// Enable to scale the image
scalable: true,
// Enable to zoom the image
zoomable: true,
// Enable to zoom the image by dragging touch
zoomOnTouch: true,
// Enable to zoom the image by wheeling mouse
zoomOnWheel: true,
// Define zoom ratio when zoom the image by wheeling mouse
wheelZoomRatio: 0.1,
// Enable to move the crop box
cropBoxMovable: true,
// Enable to resize the crop box
cropBoxResizable: true,
// Toggle drag mode between "crop" and "move" when click twice on the cropper
toggleDragModeOnDblclick: true,
// Size limitation
minCanvasWidth: 0,
minCanvasHeight: 0,
minCropBoxWidth: 0,
minCropBoxHeight: 0,
minContainerWidth: 200,
minContainerHeight: 100,
// Shortcuts of events
ready: null,
cropstart: null,
cropmove: null,
cropend: null,
crop: null,
zoom: null
};
var TEMPLATE = '<div class="cropper-container">' + '<div class="cropper-wrap-box">' + '<div class="cropper-canvas"></div>' + '</div>' + '<div class="cropper-drag-box"></div>' + '<div class="cropper-crop-box">' + '<span class="cropper-view-box"></span>' + '<span class="cropper-dashed dashed-h"></span>' + '<span class="cropper-dashed dashed-v"></span>' + '<span class="cropper-center"></span>' + '<span class="cropper-face"></span>' + '<span class="cropper-line line-e" data-action="e"></span>' + '<span class="cropper-line line-n" data-action="n"></span>' + '<span class="cropper-line line-w" data-action="w"></span>' + '<span class="cropper-line line-s" data-action="s"></span>' + '<span class="cropper-point point-e" data-action="e"></span>' + '<span class="cropper-point point-n" data-action="n"></span>' + '<span class="cropper-point point-w" data-action="w"></span>' + '<span class="cropper-point point-s" data-action="s"></span>' + '<span class="cropper-point point-ne" data-action="ne"></span>' + '<span class="cropper-point point-nw" data-action="nw"></span>' + '<span class="cropper-point point-sw" data-action="sw"></span>' + '<span class="cropper-point point-se" data-action="se"></span>' + '</div>' + '</div>';
var REGEXP_DATA_URL_HEAD = /^data:.*,/;
var REGEXP_USERAGENT = /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i;
var navigator = typeof window !== 'undefined' ? window.navigator : null;
var IS_SAFARI_OR_UIWEBVIEW = navigator && REGEXP_USERAGENT.test(navigator.userAgent);
var fromCharCode = String.fromCharCode;
function isNumber(n) {
return typeof n === 'number' && !isNaN(n);
}
function isUndefined(n) {
return typeof n === 'undefined';
}
function toArray(obj, offset) {
var args = [];
// This is necessary for IE8
if (isNumber(offset)) {
args.push(offset);
}
return args.slice.apply(obj, args);
}
// Custom proxy to avoid jQuery's guid
function proxy(fn, context) {
for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
args[_key - 2] = arguments[_key];
}
return function () {
for (var _len2 = arguments.length, args2 = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
args2[_key2] = arguments[_key2];
}
return fn.apply(context, args.concat(toArray(args2)));
};
}
function objectKeys(obj) {
var keys = [];
$.each(obj, function (key) {
keys.push(key);
});
return keys;
}
function isCrossOriginURL(url) {
var parts = url.match(/^(https?:)\/\/([^:/?#]+):?(\d*)/i);
return parts && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
}
function addTimestamp(url) {
var timestamp = 'timestamp=' + new Date().getTime();
return url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp;
}
function getImageSize(image, callback) {
// Modern browsers (ignore Safari, #120 & #509)
if (image.naturalWidth && !IS_SAFARI_OR_UIWEBVIEW) {
callback(image.naturalWidth, image.naturalHeight);
return;
}
// IE8: Don't use `new Image()` here (#319)
var newImage = document.createElement('img');
newImage.onload = function load() {
callback(this.width, this.height);
};
newImage.src = image.src;
}
function getTransform(options) {
var transforms = [];
var translateX = options.translateX;
var translateY = options.translateY;
var rotate = options.rotate;
var scaleX = options.scaleX;
var scaleY = options.scaleY;
if (isNumber(translateX) && translateX !== 0) {
transforms.push('translateX(' + translateX + 'px)');
}
if (isNumber(translateY) && translateY !== 0) {
transforms.push('translateY(' + translateY + 'px)');
}
// Rotate should come first before scale to match orientation transform
if (isNumber(rotate) && rotate !== 0) {
transforms.push('rotate(' + rotate + 'deg)');
}
if (isNumber(scaleX) && scaleX !== 1) {
transforms.push('scaleX(' + scaleX + ')');
}
if (isNumber(scaleY) && scaleY !== 1) {
transforms.push('scaleY(' + scaleY + ')');
}
return transforms.length ? transforms.join(' ') : 'none';
}
function getRotatedSizes(data, isReversed) {
var deg = Math.abs(data.degree) % 180;
var arc = (deg > 90 ? 180 - deg : deg) * Math.PI / 180;
var sinArc = Math.sin(arc);
var cosArc = Math.cos(arc);
var width = data.width;
var height = data.height;
var aspectRatio = data.aspectRatio;
var newWidth = void 0;
var newHeight = void 0;
if (!isReversed) {
newWidth = width * cosArc + height * sinArc;
newHeight = width * sinArc + height * cosArc;
} else {
newWidth = width / (cosArc + sinArc / aspectRatio);
newHeight = newWidth / aspectRatio;
}
return {
width: newWidth,
height: newHeight
};
}
function getSourceCanvas(image, data, options) {
var canvas = $('<canvas>')[0];
var context = canvas.getContext('2d');
var dstX = 0;
var dstY = 0;
var dstWidth = data.naturalWidth;
var dstHeight = data.naturalHeight;
var rotate = data.rotate;
var scaleX = data.scaleX;
var scaleY = data.scaleY;
var scalable = isNumber(scaleX) && isNumber(scaleY) && (scaleX !== 1 || scaleY !== 1);
var rotatable = isNumber(rotate) && rotate !== 0;
var advanced = rotatable || scalable;
var canvasWidth = dstWidth * Math.abs(scaleX || 1);
var canvasHeight = dstHeight * Math.abs(scaleY || 1);
var translateX = void 0;
var translateY = void 0;
var rotated = void 0;
if (scalable) {
translateX = canvasWidth / 2;
translateY = canvasHeight / 2;
}
if (rotatable) {
rotated = getRotatedSizes({
width: canvasWidth,
height: canvasHeight,
degree: rotate
});
canvasWidth = rotated.width;
canvasHeight = rotated.height;
translateX = canvasWidth / 2;
translateY = canvasHeight / 2;
}
canvas.width = canvasWidth;
canvas.height = canvasHeight;
if (options.fillColor) {
context.fillStyle = options.fillColor;
context.fillRect(0, 0, canvasWidth, canvasHeight);
}
if (advanced) {
dstX = -dstWidth / 2;
dstY = -dstHeight / 2;
context.save();
context.translate(translateX, translateY);
}
// Rotate should come first before scale as in the "getTransform" function
if (rotatable) {
context.rotate(rotate * Math.PI / 180);
}
if (scalable) {
context.scale(scaleX, scaleY);
}
context.imageSmoothingEnabled = !!options.imageSmoothingEnabled;
if (options.imageSmoothingQuality) {
context.imageSmoothingQuality = options.imageSmoothingQuality;
}
context.drawImage(image, Math.floor(dstX), Math.floor(dstY), Math.floor(dstWidth), Math.floor(dstHeight));
if (advanced) {
context.restore();
}
return canvas;
}
function getStringFromCharCode(dataView, start, length) {
var str = '';
var i = void 0;
for (i = start, length += start; i < length; i += 1) {
str += fromCharCode(dataView.getUint8(i));
}
return str;
}
function getOrientation(arrayBuffer) {
var dataView = new DataView(arrayBuffer);
var length = dataView.byteLength;
var orientation = void 0;
var exifIDCode = void 0;
var tiffOffset = void 0;
var firstIFDOffset = void 0;
var littleEndian = void 0;
var endianness = void 0;
var app1Start = void 0;
var ifdStart = void 0;
var offset = void 0;
var i = void 0;
// Only handle JPEG image (start by 0xFFD8)
if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
offset = 2;
while (offset < length) {
if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
app1Start = offset;
break;
}
offset += 1;
}
}
if (app1Start) {
exifIDCode = app1Start + 4;
tiffOffset = app1Start + 10;
if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
endianness = dataView.getUint16(tiffOffset);
littleEndian = endianness === 0x4949;
if (littleEndian || endianness === 0x4D4D /* bigEndian */) {
if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {
firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
if (firstIFDOffset >= 0x00000008) {
ifdStart = tiffOffset + firstIFDOffset;
}
}
}
}
}
if (ifdStart) {
length = dataView.getUint16(ifdStart, littleEndian);
for (i = 0; i < length; i += 1) {
offset = ifdStart + i * 12 + 2;
if (dataView.getUint16(offset, littleEndian) === 0x0112 /* Orientation */) {
// 8 is the offset of the current tag's value
offset += 8;
// Get the original orientation value
orientation = dataView.getUint16(offset, littleEndian);
// Override the orientation with its default value for Safari (#120)
if (IS_SAFARI_OR_UIWEBVIEW) {
dataView.setUint16(offset, 1, littleEndian);
}
break;
}
}
}
return orientation;
}
function dataURLToArrayBuffer(dataURL) {
var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
var binary = atob(base64);
var length = binary.length;
var arrayBuffer = new ArrayBuffer(length);
var dataView = new Uint8Array(arrayBuffer);
var i = void 0;
for (i = 0; i < length; i += 1) {
dataView[i] = binary.charCodeAt(i);
}
return arrayBuffer;
}
// Only available for JPEG image
function arrayBufferToDataURL(arrayBuffer) {
var dataView = new Uint8Array(arrayBuffer);
var length = dataView.length;
var base64 = '';
var i = void 0;
for (i = 0; i < length; i += 1) {
base64 += fromCharCode(dataView[i]);
}
return 'data:image/jpeg;base64,' + btoa(base64);
}
var render = {
render: function render() {
var self = this;
self.initContainer();
self.initCanvas();
self.initCropBox();
self.renderCanvas();
if (self.cropped) {
self.renderCropBox();
}
},
initContainer: function initContainer() {
var self = this;
var options = self.options;
var $this = self.$element;
var $container = self.$container;
var $cropper = self.$cropper;
var hidden = 'cropper-hidden';
$cropper.addClass(hidden);
$this.removeClass(hidden);
$cropper.css(self.container = {
width: Math.max($container.width(), Number(options.minContainerWidth) || 200),
height: Math.max($container.height(), Number(options.minContainerHeight) || 100)
});
$this.addClass(hidden);
$cropper.removeClass(hidden);
},
// Canvas (image wrapper)
initCanvas: function initCanvas() {
var self = this;
var viewMode = self.options.viewMode;
var container = self.container;
var containerWidth = container.width;
var containerHeight = container.height;
var image = self.image;
var imageNaturalWidth = image.naturalWidth;
var imageNaturalHeight = image.naturalHeight;
var is90Degree = Math.abs(image.rotate) % 180 === 90;
var naturalWidth = is90Degree ? imageNaturalHeight : imageNaturalWidth;
var naturalHeight = is90Degree ? imageNaturalWidth : imageNaturalHeight;
var aspectRatio = naturalWidth / naturalHeight;
var canvasWidth = containerWidth;
var canvasHeight = containerHeight;
if (containerHeight * aspectRatio > containerWidth) {
if (viewMode === 3) {
canvasWidth = containerHeight * aspectRatio;
} else {
canvasHeight = containerWidth / aspectRatio;
}
} else if (viewMode === 3) {
canvasHeight = containerWidth / aspectRatio;
} else {
canvasWidth = containerHeight * aspectRatio;
}
var canvas = {
naturalWidth: naturalWidth,
naturalHeight: naturalHeight,
aspectRatio: aspectRatio,
width: canvasWidth,
height: canvasHeight
};
canvas.left = (containerWidth - canvasWidth) / 2;
canvas.top = (containerHeight - canvasHeight) / 2;
canvas.oldLeft = canvas.left;
canvas.oldTop = canvas.top;
self.canvas = canvas;
self.limited = viewMode === 1 || viewMode === 2;
self.limitCanvas(true, true);
self.initialImage = $.extend({}, image);
self.initialCanvas = $.extend({}, canvas);
},
limitCanvas: function limitCanvas(isSizeLimited, isPositionLimited) {
var self = this;
var options = self.options;
var viewMode = options.viewMode;
var container = self.container;
var containerWidth = container.width;
var containerHeight = container.height;
var canvas = self.canvas;
var aspectRatio = canvas.aspectRatio;
var cropBox = self.cropBox;
var cropped = self.cropped && cropBox;
if (isSizeLimited) {
var minCanvasWidth = Number(options.minCanvasWidth) || 0;
var minCanvasHeight = Number(options.minCanvasHeight) || 0;
if (viewMode) {
if (viewMode > 1) {
minCanvasWidth = Math.max(minCanvasWidth, containerWidth);
minCanvasHeight = Math.max(minCanvasHeight, containerHeight);
if (viewMode === 3) {
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
minCanvasWidth = minCanvasHeight * aspectRatio;
} else {
minCanvasHeight = minCanvasWidth / aspectRatio;
}
}
} else if (minCanvasWidth) {
minCanvasWidth = Math.max(minCanvasWidth, cropped ? cropBox.width : 0);
} else if (minCanvasHeight) {
minCanvasHeight = Math.max(minCanvasHeight, cropped ? cropBox.height : 0);
} else if (cropped) {
minCanvasWidth = cropBox.width;
minCanvasHeight = cropBox.height;
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
minCanvasWidth = minCanvasHeight * aspectRatio;
} else {
minCanvasHeight = minCanvasWidth / aspectRatio;
}
}
}
if (minCanvasWidth && minCanvasHeight) {
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
minCanvasHeight = minCanvasWidth / aspectRatio;
} else {
minCanvasWidth = minCanvasHeight * aspectRatio;
}
} else if (minCanvasWidth) {
minCanvasHeight = minCanvasWidth / aspectRatio;
} else if (minCanvasHeight) {
minCanvasWidth = minCanvasHeight * aspectRatio;
}
canvas.minWidth = minCanvasWidth;
canvas.minHeight = minCanvasHeight;
canvas.maxWidth = Infinity;
canvas.maxHeight = Infinity;
}
if (isPositionLimited) {
if (viewMode) {
var newCanvasLeft = containerWidth - canvas.width;
var newCanvasTop = containerHeight - canvas.height;
canvas.minLeft = Math.min(0, newCanvasLeft);
canvas.minTop = Math.min(0, newCanvasTop);
canvas.maxLeft = Math.max(0, newCanvasLeft);
canvas.maxTop = Math.max(0, newCanvasTop);
if (cropped && self.limited) {
canvas.minLeft = Math.min(cropBox.left, cropBox.left + cropBox.width - canvas.width);
canvas.minTop = Math.min(cropBox.top, cropBox.top + cropBox.height - canvas.height);
canvas.maxLeft = cropBox.left;
canvas.maxTop = cropBox.top;
if (viewMode === 2) {
if (canvas.width >= containerWidth) {
canvas.minLeft = Math.min(0, newCanvasLeft);
canvas.maxLeft = Math.max(0, newCanvasLeft);
}
if (canvas.height >= containerHeight) {
canvas.minTop = Math.min(0, newCanvasTop);
canvas.maxTop = Math.max(0, newCanvasTop);
}
}
}
} else {
canvas.minLeft = -canvas.width;
canvas.minTop = -canvas.height;
canvas.maxLeft = containerWidth;
canvas.maxTop = containerHeight;
}
}
},
renderCanvas: function renderCanvas(isChanged) {
var self = this;
var canvas = self.canvas;
var image = self.image;
var rotate = image.rotate;
var naturalWidth = image.naturalWidth;
var naturalHeight = image.naturalHeight;
if (self.rotated) {
self.rotated = false;
// Computes rotated sizes with image sizes
var rotated = getRotatedSizes({
width: image.width,
height: image.height,
degree: rotate
});
var aspectRatio = rotated.width / rotated.height;
var isSquareImage = image.aspectRatio === 1;
if (isSquareImage || aspectRatio !== canvas.aspectRatio) {
canvas.left -= (rotated.width - canvas.width) / 2;
canvas.top -= (rotated.height - canvas.height) / 2;
canvas.width = rotated.width;
canvas.height = rotated.height;
canvas.aspectRatio = aspectRatio;
canvas.naturalWidth = naturalWidth;
canvas.naturalHeight = naturalHeight;
// Computes rotated sizes with natural image sizes
if (isSquareImage && rotate % 90 || rotate % 180) {
var rotated2 = getRotatedSizes({
width: naturalWidth,
height: naturalHeight,
degree: rotate
});
canvas.naturalWidth = rotated2.width;
canvas.naturalHeight = rotated2.height;
}
self.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 = Math.min(Math.max(canvas.width, canvas.minWidth), canvas.maxWidth);
canvas.height = Math.min(Math.max(canvas.height, canvas.minHeight), canvas.maxHeight);
self.limitCanvas(false, true);
canvas.left = Math.min(Math.max(canvas.left, canvas.minLeft), canvas.maxLeft);
canvas.top = Math.min(Math.max(canvas.top, canvas.minTop), canvas.maxTop);
canvas.oldLeft = canvas.left;
canvas.oldTop = canvas.top;
self.$canvas.css({
width: canvas.width,
height: canvas.height,
transform: getTransform({
translateX: canvas.left,
translateY: canvas.top
})
});
self.renderImage();
if (self.cropped && self.limited) {
self.limitCropBox(true, true);
}
if (isChanged) {
self.output();
}
},
renderImage: function renderImage(isChanged) {
var self = this;
var canvas = self.canvas;
var image = self.image;
var reversed = void 0;
if (image.rotate) {
reversed = getRotatedSizes({
width: canvas.width,
height: canvas.height,
degree: image.rotate,
aspectRatio: image.aspectRatio
}, true);
}
$.extend(image, reversed ? {
width: reversed.width,
height: reversed.height,
left: (canvas.width - reversed.width) / 2,
top: (canvas.height - reversed.height) / 2
} : {
width: canvas.width,
height: canvas.height,
left: 0,
top: 0
});
self.$clone.css({
width: image.width,
height: image.height,
transform: getTransform($.extend({
translateX: image.left,
translateY: image.top
}, image))
});
if (isChanged) {
self.output();
}
},
initCropBox: function initCropBox() {
var self = this;
var options = self.options;
var canvas = self.canvas;
var aspectRatio = options.aspectRatio;
var autoCropArea = Number(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;
}
}
self.cropBox = cropBox;
self.limitCropBox(true, true);
// Initialize auto crop area
cropBox.width = Math.min(Math.max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);
cropBox.height = Math.min(Math.max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);
// The width of auto crop area must large than "minWidth", and the height too. (#164)
cropBox.width = Math.max(cropBox.minWidth, cropBox.width * autoCropArea);
cropBox.height = Math.max(cropBox.minHeight, cropBox.height * autoCropArea);
cropBox.left = canvas.left + (canvas.width - cropBox.width) / 2;
cropBox.top = canvas.top + (canvas.height - cropBox.height) / 2;
cropBox.oldLeft = cropBox.left;
cropBox.oldTop = cropBox.top;
self.initialCropBox = $.extend({}, cropBox);
},
limitCropBox: function limitCropBox(isSizeLimited, isPositionLimited) {
var self = this;
var options = self.options;
var aspectRatio = options.aspectRatio;
var container = self.container;
var containerWidth = container.width;
var containerHeight = container.height;
var canvas = self.canvas;
var cropBox = self.cropBox;
var limited = self.limited;
if (isSizeLimited) {
var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
var maxCropBoxWidth = Math.min(containerWidth, limited ? canvas.width : containerWidth);
var maxCropBoxHeight = Math.min(containerHeight, limited ? canvas.height : containerHeight);
// The min/maxCropBoxWidth/Height must be less than containerWidth/Height
minCropBoxWidth = Math.min(minCropBoxWidth, containerWidth);
minCropBoxHeight = Math.min(minCropBoxHeight, containerHeight);
if (aspectRatio) {
if (minCropBoxWidth && minCropBoxHeight) {
if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {
minCropBoxHeight = minCropBoxWidth / aspectRatio;
} else {
minCropBoxWidth = minCropBoxHeight * aspectRatio;
}
} else if (minCropBoxWidth) {
minCropBoxHeight = minCropBoxWidth / aspectRatio;
} else if (minCropBoxHeight) {
minCropBoxWidth = minCropBoxHeight * aspectRatio;
}
if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
maxCropBoxHeight = maxCropBoxWidth / aspectRatio;
} else {
maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
}
}
// The minWidth/Height must be less than maxWidth/Height
cropBox.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
cropBox.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
cropBox.maxWidth = maxCropBoxWidth;
cropBox.maxHeight = maxCropBoxHeight;
}
if (isPositionLimited) {
if (limited) {
cropBox.minLeft = Math.max(0, canvas.left);
cropBox.minTop = Math.max(0, canvas.top);
cropBox.maxLeft = Math.min(containerWidth, canvas.left + canvas.width) - cropBox.width;
cropBox.maxTop = Math.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 renderCropBox() {
var self = this;
var options = self.options;
var container = self.container;
var containerWidth = container.width;
var containerHeight = container.height;
var cropBox = self.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 = Math.min(Math.max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);
cropBox.height = Math.min(Math.max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);
self.limitCropBox(false, true);
cropBox.left = Math.min(Math.max(cropBox.left, cropBox.minLeft), cropBox.maxLeft);
cropBox.top = Math.min(Math.max(cropBox.top, cropBox.minTop), cropBox.maxTop);
cropBox.oldLeft = cropBox.left;
cropBox.oldTop = cropBox.top;
if (options.movable && options.cropBoxMovable) {
// Turn to move the canvas when the crop box is equal to the container
self.$face.data('action', cropBox.width === containerWidth && cropBox.height === containerHeight ? 'move' : 'all');
}
self.$cropBox.css({
width: cropBox.width,
height: cropBox.height,
transform: getTransform({
translateX: cropBox.left,
translateY: cropBox.top
})
});
if (self.cropped && self.limited) {
self.limitCanvas(true, true);
}
if (!self.disabled) {
self.output();
}
},
output: function output() {
var self = this;
self.preview();
if (self.completed) {
self.trigger('crop', self.getData());
}
}
};
var DATA_PREVIEW = 'preview';
var preview = {
initPreview: function initPreview() {
var self = this;
var crossOrigin = self.crossOrigin;
var url = crossOrigin ? self.crossOriginUrl : self.url;
var image = document.createElement('img');
if (crossOrigin) {
image.crossOrigin = crossOrigin;
}
image.src = url;
var $clone2 = $(image);
self.$preview = $(self.options.preview);
self.$clone2 = $clone2;
self.$viewBox.html($clone2);
self.$preview.each(function (i, element) {
var $this = $(element);
var img = document.createElement('img');
// Save the original size for recover
$this.data(DATA_PREVIEW, {
width: $this.width(),
height: $this.height(),
html: $this.html()
});
if (crossOrigin) {
img.crossOrigin = crossOrigin;
}
img.src = url;
/**
* Override img element styles
* Add `display:block` to avoid margin top issue
* Add `height:auto` to override `height` attribute on IE8
* (Occur only when margin-top <= -height)
*/
img.style.cssText = 'display:block;' + 'width:100%;' + 'height:auto;' + 'min-width:0!important;' + 'min-height:0!important;' + 'max-width:none!important;' + 'max-height:none!important;' + 'image-orientation:0deg!important;"';
$this.html(img);
});
},
resetPreview: function resetPreview() {
this.$preview.each(function (i, element) {
var $this = $(element);
var data = $this.data(DATA_PREVIEW);
$this.css({
width: data.width,
height: data.height
}).html(data.html).removeData(DATA_PREVIEW);
});
},
preview: function preview() {
var self = this;
var image = self.image;
var canvas = self.canvas;
var cropBox = self.cropBox;
var cropBoxWidth = cropBox.width;
var cropBoxHeight = cropBox.height;
var width = image.width;
var height = image.height;
var left = cropBox.left - canvas.left - image.left;
var top = cropBox.top - canvas.top - image.top;
if (!self.cropped || self.disabled) {
return;
}
self.$clone2.css({
width: width,
height: height,
transform: getTransform($.extend({
translateX: -left,
translateY: -top
}, image))
});
self.$preview.each(function (i, element) {
var $this = $(element);
var data = $this.data(DATA_PREVIEW);
var originalWidth = data.width;
var originalHeight = data.height;
var newWidth = originalWidth;
var newHeight = originalHeight;
var ratio = 1;
if (cropBoxWidth) {
ratio = originalWidth / cropBoxWidth;
newHeight = cropBoxHeight * ratio;
}
if (cropBoxHeight && newHeight > originalHeight) {
ratio = originalHeight / cropBoxHeight;
newWidth = cropBoxWidth * ratio;
newHeight = originalHeight;
}
$this.css({
width: newWidth,
height: newHeight
}).find('img').css({
width: width * ratio,
height: height * ratio,
transform: getTransform($.extend({
translateX: -left * ratio,
translateY: -top * ratio
}, image))
});
});
}
};
// Globals
var PointerEvent = typeof window !== 'undefined' ? window.PointerEvent : null;
// Events
var EVENT_POINTER_DOWN = PointerEvent ? 'pointerdown' : 'touchstart mousedown';
var EVENT_POINTER_MOVE = PointerEvent ? 'pointermove' : 'touchmove mousemove';
var EVENT_POINTER_UP = PointerEvent ? ' pointerup pointercancel' : 'touchend touchcancel mouseup';
var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
var EVENT_DBLCLICK = 'dblclick';
var EVENT_RESIZE = 'resize';
var EVENT_CROP_START = 'cropstart';
var EVENT_CROP_MOVE = 'cropmove';
var EVENT_CROP_END = 'cropend';
var EVENT_CROP = 'crop';
var EVENT_ZOOM = 'zoom';
var events = {
bind: function bind() {
var self = this;
var options = self.options;
var $this = self.$element;
var $cropper = self.$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_POINTER_DOWN, proxy(self.cropStart, this));
if (options.zoomable && options.zoomOnWheel) {
$cropper.on(EVENT_WHEEL, proxy(self.wheel, this));
}
if (options.toggleDragModeOnDblclick) {
$cropper.on(EVENT_DBLCLICK, proxy(self.dblclick, this));
}
$(document).on(EVENT_POINTER_MOVE, self.onCropMove = proxy(self.cropMove, this)).on(EVENT_POINTER_UP, self.onCropEnd = proxy(self.cropEnd, this));
if (options.responsive) {
$(window).on(EVENT_RESIZE, self.onResize = proxy(self.resize, this));
}
},
unbind: function unbind() {
var self = this;
var options = self.options;
var $this = self.$element;
var $cropper = self.$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_POINTER_DOWN, self.cropStart);
if (options.zoomable && options.zoomOnWheel) {
$cropper.off(EVENT_WHEEL, self.wheel);
}
if (options.toggleDragModeOnDblclick) {
$cropper.off(EVENT_DBLCLICK, self.dblclick);
}
$(document).off(EVENT_POINTER_MOVE, self.onCropMove).off(EVENT_POINTER_UP, self.onCropEnd);
if (options.responsive) {
$(window).off(EVENT_RESIZE, self.onResize);
}
}
};
var REGEXP_ACTIONS = /^(e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
function getPointer(_ref, endOnly) {
var pageX = _ref.pageX,
pageY = _ref.pageY;
var end = {
endX: pageX,
endY: pageY
};
if (endOnly) {
return end;
}
return $.extend({
startX: pageX,
startY: pageY
}, end);
}
var handlers = {
resize: function resize() {
var self = this;
var options = self.options;
var $container = self.$container;
var container = self.container;
var minContainerWidth = Number(options.minContainerWidth) || 200;
var minContainerHeight = Number(options.minContainerHeight) || 100;
if (self.disabled || container.width === minContainerWidth || container.height === minContainerHeight) {
return;
}
var ratio = $container.width() / container.width;
// Resize when width changed or height changed
if (ratio !== 1 || $container.height() !== container.height) {
var canvasData = void 0;
var cropBoxData = void 0;
if (options.restore) {
canvasData = self.getCanvasData();
cropBoxData = self.getCropBoxData();
}
self.render();
if (options.restore) {
self.setCanvasData($.each(canvasData, function (i, n) {
canvasData[i] = n * ratio;
}));
self.setCropBoxData($.each(cropBoxData, function (i, n) {
cropBoxData[i] = n * ratio;
}));
}
}
},
dblclick: function dblclick() {
var self = this;
if (self.disabled || self.options.dragMode === 'none') {
return;
}
self.setDragMode(self.$dragBox.hasClass('cropper-crop') ? 'move' : 'crop');
},
wheel: function wheel(event) {
var self = this;
var e = event.originalEvent || event;
var ratio = Number(self.options.wheelZoomRatio) || 0.1;
if (self.disabled) {
return;
}
event.preventDefault();
// Limit wheel speed to prevent zoom too fast
if (self.wheeling) {
return;
}
self.wheeling = true;
setTimeout(function () {
self.wheeling = false;
}, 50);
var delta = 1;
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;
}
self.zoom(-delta * ratio, event);
},
cropStart: function cropStart(e) {
var self = this;
if (self.disabled) {
return;
}
var options = self.options;
var pointers = self.pointers;
var originalEvent = e.originalEvent;
var action = void 0;
if (originalEvent && originalEvent.changedTouches) {
// Handle touch event
$.each(originalEvent.changedTouches, function (i, touch) {
pointers[touch.identifier] = getPointer(touch);
});
} else {
// Handle mouse event and pointer event
pointers[originalEvent && originalEvent.pointerId || 0] = getPointer(originalEvent || e);
}
if (objectKeys(pointers).length > 1 && options.zoomable && options.zoomOnTouch) {
action = 'zoom';
} else {
action = $(e.target).data('action');
}
if (!REGEXP_ACTIONS.test(action)) {
return;
}
if (self.trigger('cropstart', {
originalEvent: originalEvent,
action: action
}).isDefaultPrevented()) {
return;
}
e.preventDefault();
self.action = action;
self.cropping = false;
if (action === 'crop') {
self.cropping = true;
self.$dragBox.addClass('cropper-modal');
}
},
cropMove: function cropMove(e) {
var self = this;
var action = self.action;
if (self.disabled || !action) {
return;
}
var pointers = self.pointers;
var originalEvent = e.originalEvent;
e.preventDefault();
if (self.trigger('cropmove', {
originalEvent: originalEvent,
action: action
}).isDefaultPrevented()) {
return;
}
if (originalEvent && originalEvent.changedTouches) {
$.each(originalEvent.changedTouches, function (i, touch) {
$.extend(pointers[touch.identifier], getPointer(touch, true));
});
} else {
$.extend(pointers[originalEvent && originalEvent.pointerId || 0], getPointer(originalEvent || e, true));
}
self.change(e);
},
cropEnd: function cropEnd(e) {
var self = this;
if (self.disabled) {
return;
}
var action = self.action;
var pointers = self.pointers;
var originalEvent = e.originalEvent;
if (originalEvent && originalEvent.changedTouches) {
$.each(originalEvent.changedTouches, function (i, touch) {
delete pointers[touch.identifier];
});
} else {
delete pointers[originalEvent && originalEvent.pointerId || 0];
}
if (!action) {
return;
}
e.preventDefault();
if (!objectKeys(pointers).length) {
self.action = '';
}
if (self.cropping) {
self.cropping = false;
self.$dragBox.toggleClass('cropper-modal', self.cropped && self.options.modal);
}
self.trigger('cropend', {
originalEvent: originalEvent,
action: action
});
}
};
// Actions
var ACTION_EAST = 'e';
var ACTION_WEST = 'w';
var ACTION_SOUTH = 's';
var ACTION_NORTH = 'n';
var ACTION_SOUTH_EAST = 'se';
var ACTION_SOUTH_WEST = 'sw';
var ACTION_NORTH_EAST = 'ne';
var ACTION_NORTH_WEST = 'nw';
function getMaxZoomRatio(pointers) {
var pointers2 = $.extend({}, pointers);
var ratios = [];
$.each(pointers, function (pointerId, pointer) {
delete pointers2[pointerId];
$.each(pointers2, function (pointerId2, pointer2) {
var x1 = Math.abs(pointer.startX - pointer2.startX);
var y1 = Math.abs(pointer.startY - pointer2.startY);
var x2 = Math.abs(pointer.endX - pointer2.endX);
var y2 = Math.abs(pointer.endY - pointer2.endY);
var z1 = Math.sqrt(x1 * x1 + y1 * y1);
var z2 = Math.sqrt(x2 * x2 + y2 * y2);
var ratio = (z2 - z1) / z1;
ratios.push(ratio);
});
});
ratios.sort(function (a, b) {
return Math.abs(a) < Math.abs(b);
});
return ratios[0];
}
var change = {
change: function change(e) {
var self = this;
var options = self.options;
var pointers = self.pointers;
var pointer = pointers[objectKeys(pointers)[0]];
var container = self.container;
var canvas = self.canvas;
var cropBox = self.cropBox;
var action = self.action;
var aspectRatio = options.aspectRatio;
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 = void 0;
// Locking aspect ratio in "free mode" by holding shift key (#259)
if (!aspectRatio && e.shiftKey) {
aspectRatio = width && height ? width / height : 1;
}
if (self.limited) {
minLeft = cropBox.minLeft;
minTop = cropBox.minTop;
maxWidth = minLeft + Math.min(container.width, canvas.width, canvas.left + canvas.width);
maxHeight = minTop + Math.min(container.height, canvas.height, canvas.top + canvas.height);
}
var range = {
x: pointer.endX - pointer.startX,
y: pointer.endY - pointer.startY
};
switch (action) {
// Move crop box
case '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;
}
if (right + range.x > maxWidth) {
range.x = maxWidth - right;
}
width += range.x;
if (aspectRatio) {
height = width / aspectRatio;
top -= range.x / aspectRatio / 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;
}
if (top + range.y < minTop) {
range.y = minTop - top;
}
height -= range.y;
top += range.y;
if (aspectRatio) {
width = height * aspectRatio;
left += range.y * aspectRatio / 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;
}
if (left + range.x < minLeft) {
range.x = minLeft - left;
}
width -= range.x;
left += range.x;
if (aspectRatio) {
height = width / aspectRatio;
top += range.x / aspectRatio / 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;
}
if (bottom + range.y > maxHeight) {
range.y = maxHeight - bottom;
}
height += range.y;
if (aspectRatio) {
width = height * aspectRatio;
left -= range.y * aspectRatio / 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.y * aspectRatio;
} 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 'move':
self.move(range.x, range.y);
renderable = false;
break;
// Zoom canvas
case 'zoom':
self.zoom(getMaxZoomRatio(pointers), e.originalEvent);
renderable = false;
break;
// Create crop box
case 'crop':
if (!range.x || !range.y) {
renderable = false;
break;
}
offset = self.$cropper.offset();
left = pointer.startX - offset.left;
top = pointer.startY - offset.top;
width = cropBox.minWidth;
height = cropBox.minHeight;
if (range.x > 0) {
action = range.y > 0 ? ACTION_SOUTH_EAST : ACTION_NORTH_EAST;
} else if (range.x < 0) {
left -= width;
action = range.y > 0 ? ACTION_SOUTH_WEST : ACTION_NORTH_WEST;
}
if (range.y < 0) {
top -= height;
}
// Show the crop box if is hidden
if (!self.cropped) {
self.$cropBox.removeClass('cropper-hidden');
self.cropped = true;
if (self.limited) {
self.limitCropBox(true, true);
}
}
break;
default:
}
if (renderable) {
cropBox.width = width;
cropBox.height = height;
cropBox.left = left;
cropBox.top = top;
self.action = action;
self.renderCropBox();
}
// Override
$.each(pointers, function (i, p) {
p.startX = p.endX;
p.startY = p.endY;
});
}
};
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
function getPointersCenter(pointers) {
var pageX = 0;
var pageY = 0;
var count = 0;
$.each(pointers, function (i, _ref) {
var startX = _ref.startX,
startY = _ref.startY;
pageX += startX;
pageY += startY;
count += 1;
});
pageX /= count;
pageY /= count;
return {
pageX: pageX,
pageY: pageY
};
}
var methods = {
// Show the crop box manually
crop: function crop() {
var self = this;
if (!self.ready || self.disabled) {
return;
}
if (!self.cropped) {
self.cropped = true;
self.limitCropBox(true, true);
if (self.options.modal) {
self.$dragBox.addClass('cropper-modal');
}
self.$cropBox.removeClass('cropper-hidden');
}
self.setCropBoxData(self.initialCropBox);
},
// Reset the image and crop box to their initial states
reset: function reset() {
var self = this;
if (!self.ready || self.disabled) {
return;
}
self.image = $.extend({}, self.initialImage);
self.canvas = $.extend({}, self.initialCanvas);
self.cropBox = $.extend({}, self.initialCropBox);
self.renderCanvas();
if (self.cropped) {
self.renderCropBox();
}
},
// Clear the crop box
clear: function clear() {
var self = this;
if (!self.cropped || self.disabled) {
return;
}
$.extend(self.cropBox, {
left: 0,
top: 0,
width: 0,
height: 0
});
self.cropped = false;
self.renderCropBox();
self.limitCanvas(true, true);
// Render canvas after crop box rendered
self.renderCanvas();
self.$dragBox.removeClass('cropper-modal');
self.$cropBox.addClass('cropper-hidden');
},
/**
* Replace the image's src and rebuild the cropper
*
* @param {String} url
* @param {Boolean} onlyColorChanged (optional)
*/
replace: function replace(url, onlyColorChanged) {
var self = this;
if (!self.disabled && url) {
if (self.isImg) {
self.$element.attr('src', url);
}
if (onlyColorChanged) {
self.url = url;
self.$clone.attr('src', url);
if (self.ready) {
self.$preview.find('img').add(self.$clone2).attr('src', url);
}
} else {
if (self.isImg) {
self.replaced = true;
}
// Clear previous data
self.options.data = null;
self.load(url);
}
}
},
// Enable (unfreeze) the cropper
enable: function enable() {
var self = this;
if (self.ready) {
self.disabled = false;
self.$cropper.removeClass('cropper-disabled');
}
},
// Disable (freeze) the cropper
disable: function disable() {
var self = this;
if (self.ready) {
self.disabled = true;
self.$cropper.addClass('cropper-disabled');
}
},
// Destroy the cropper and remove the instance from the image
destroy: function destroy() {
var self = this;
var $this = self.$element;
if (self.loaded) {
if (self.isImg && self.replaced) {
$this.attr('src', self.originalUrl);
}
self.unbuild();
$this.removeClass('cropper-hidden');
} else if (self.isImg) {
$this.off('load', self.start);
} else if (self.$clone) {
self.$clone.remove();
}
$this.removeData('cropper');
},
/**
* Move the canvas with relative offsets
*
* @param {Number} offsetX
* @param {Number} offsetY (optional)
*/
move: function move(offsetX, offsetY) {
var self = this;
var canvas = self.canvas;
self.moveTo(isUndefined(offsetX) ? offsetX : canvas.left + Number(offsetX), isUndefined(offsetY) ? offsetY : canvas.top + Number(offsetY));
},
/**
* Move the canvas to an absolute point
*
* @param {Number} x
* @param {Number} y (optional)
*/
moveTo: function moveTo(x, y) {
var self = this;
var canvas = self.canvas;
var changed = false;
// If "y" is not present, its default value is "x"
if (isUndefined(y)) {
y = x;
}
x = Number(x);
y = Number(y);
if (self.ready && !self.disabled && self.options.movable) {
if (isNumber(x)) {
canvas.left = x;
changed = true;
}
if (isNumber(y)) {
canvas.top = y;
changed = true;
}
if (changed) {
self.renderCanvas(true);
}
}
},
/**
* Zoom the canvas with a relative ratio
*
* @param {Number} ratio
* @param {jQuery Event} _event (private)
*/
zoom: function zoom(ratio, _event) {
var self = this;
var canvas = self.canvas;
ratio = Number(ratio);
if (ratio < 0) {
ratio = 1 / (1 - ratio);
} else {
ratio = 1 + ratio;
}
self.zoomTo(canvas.width * ratio / canvas.naturalWidth, _event);
},
/**
* Zoom the canvas to an absolute ratio
*
* @param {Number} ratio
* @param {jQuery Event} _event (private)
*/
zoomTo: function zoomTo(ratio, _event) {
var self = this;
var options = self.options;
var pointers = self.pointers;
var canvas = self.canvas;
var width = canvas.width;
var height = canvas.height;
var naturalWidth = canvas.naturalWidth;
var naturalHeight = canvas.naturalHeight;
ratio = Number(ratio);
if (ratio >= 0 && self.ready && !self.disabled && options.zoomable) {
var newWidth = naturalWidth * ratio;
var newHeight = naturalHeight * ratio;
var originalEvent = void 0;
if (_event) {
originalEvent = _event.originalEvent;
}
if (self.trigger('zoom', {
originalEvent: originalEvent,
oldRatio: width / naturalWidth,
ratio: newWidth / naturalWidth
}).isDefaultPrevented()) {
return;
}
if (originalEvent) {
var offset = self.$cropper.offset();
var center = pointers && objectKeys(pointers).length ? getPointersCenter(pointers) : {
pageX: _event.pageX || originalEvent.pageX || 0,
pageY: _event.pageY || originalEvent.pageY || 0
};
// Zoom from the triggering point of the event
canvas.left -= (newWidth - width) * ((center.pageX - offset.left - canvas.left) / width);
canvas.top -= (newHeight - height) * ((center.pageY - offset.top - canvas.top) / height);
} else {
// Zoom from the center of the canvas
canvas.left -= (newWidth - width) / 2;
canvas.top -= (newHeight - height) / 2;
}
canvas.width = newWidth;
canvas.height = newHeight;
self.renderCanvas(true);
}
},
/**
* Rotate the canvas with a relative degree
*
* @param {Number} degree
*/
rotate: function rotate(degree) {
var self = this;
self.rotateTo((self.image.rotate || 0) + Number(degree));
},
/**
* Rotate the canvas to an absolute degree
* https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function#rotate()
*
* @param {Number} degree
*/
rotateTo: function rotateTo(degree) {
var self = this;
degree = Number(degree);
if (isNumber(degree) && self.ready && !self.disabled && self.options.rotatable) {
self.image.rotate = degree % 360;
self.rotated = true;
self.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 scale(scaleX, scaleY) {
var self = this;
var image = self.image;
var changed = false;
// If "scaleY" is not present, its default value is "scaleX"
if (isUndefined(scaleY)) {
scaleY = scaleX;
}
scaleX = Number(scaleX);
scaleY = Number(scaleY);
if (self.ready && !self.disabled && self.options.scalable) {
if (isNumber(scaleX)) {
image.scaleX = scaleX;
changed = true;
}
if (isNumber(scaleY)) {
image.scaleY = scaleY;
changed = true;
}
if (changed) {
self.renderImage(true);
}
}
},
/**
* Scale the abscissa of the image
*
* @param {Number} scaleX
*/
scaleX: function scaleX(_scaleX) {
var self = this;
var scaleY = self.image.scaleY;
self.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);
},
/**
* Scale the ordinate of the image
*
* @param {Number} scaleY
*/
scaleY: function scaleY(_scaleY) {
var self = this;
var scaleX = self.image.scaleX;
self.scale(isNumber(scaleX) ? scaleX : 1, _scaleY);
},
/**
* Get the cropped area position and size data (base on the original image)
*
* @param {Boolean} isRounded (optional)
* @return {Object} data
*/
getData: function getData(isRounded) {
var self = this;
var options = self.options;
var image = self.image;
var canvas = self.canvas;
var cropBox = self.cropBox;
var ratio = void 0;
var data = void 0;
if (self.ready && self.cropped) {
data = {
x: cropBox.left - canvas.left,
y: cropBox.top - canvas.top,
width: cropBox.width,
height: cropBox.height
};
ratio = image.width / image.naturalWidth;
$.each(data, function (i, n) {
n /= ratio;
data[i] = isRounded ? Math.round(n) : n;
});
} else {
data = {
x: 0,
y: 0,
width: 0,
height: 0
};
}
if (options.rotatable) {
data.rotate = image.rotate || 0;
}
if (options.scalable) {
data.scaleX = image.scaleX || 1;
data.scaleY = image.scaleY || 1;
}
return data;
},
/**
* Set the cropped area position and size with new data
*
* @param {Object} data
*/
setData: function setData(data) {
var self = this;
var options = self.options;
var image = self.image;
var canvas = self.canvas;
var cropBoxData = {};
var rotated = void 0;
var isScaled = void 0;
var ratio = void 0;
if ($.isFunction(data)) {
data = data.call(self.element);
}
if (self.ready && !self.disabled && $.isPlainObject(data)) {
if (options.rotatable) {
if (isNumber(data.rotate) && data.rotate !== image.rotate) {
image.rotate = data.rotate;
rotated = true;
self.rotated = rotated;
}
}
if (options.scalable) {
if (isNumber(data.scaleX) && data.scaleX !== image.scaleX) {
image.scaleX = data.scaleX;
isScaled = true;
}
if (isNumber(data.scaleY) && data.scaleY !== image.scaleY) {
image.scaleY = data.scaleY;
isScaled = true;
}
}
if (rotated) {
self.renderCanvas();
} else if (isScaled) {
self.renderImage();
}
ratio = image.width / image.naturalWidth;
if (isNumber(data.x)) {
cropBoxData.left = data.x * ratio + canvas.left;
}
if (isNumber(data.y)) {
cropBoxData.top = data.y * ratio + canvas.top;
}
if (isNumber(data.width)) {
cropBoxData.width = data.width * ratio;
}
if (isNumber(data.height)) {
cropBoxData.height = data.height * ratio;
}
self.setCropBoxData(cropBoxData);
}
},
/**
* Get the container size data
*
* @return {Object} data
*/
getContainerData: function getContainerData() {
return this.ready ? this.container : {};
},
/**
* Get the image position and size data
*
* @return {Object} data
*/
getImageData: function getImageData() {
return this.loaded ? this.image : {};
},
/**
* Get the canvas position and size data
*
* @return {Object} data
*/
getCanvasData: function getCanvasData() {
var self = this;
var canvas = self.canvas;
var data = {};
if (self.ready) {
$.each(['left', 'top', 'width', 'height', 'naturalWidth', 'naturalHeight'], function (i, n) {
data[n] = canvas[n];
});
}
return data;
},
/**
* Set the canvas position and size with new data
*
* @param {Object} data
*/
setCanvasData: function setCanvasData(data) {
var self = this;
var canvas = self.canvas;
var aspectRatio = canvas.aspectRatio;
if ($.isFunction(data)) {
data = data.call(self.$element);
}
if (self.ready && !self.disabled && $.isPlainObject(data)) {
if (isNumber(data.left)) {
canvas.left = data.left;
}
if (isNumber(data.top)) {
canvas.top = data.top;
}
if (isNumber(data.width)) {
canvas.width = data.width;
canvas.height = data.width / aspectRatio;
} else if (isNumber(data.height)) {
canvas.height = data.height;
canvas.width = data.height * aspectRatio;
}
self.renderCanvas(true);
}
},
/**
* Get the crop box position and size data
*
* @return {Object} data
*/
getCropBoxData: function getCropBoxData() {
var self = this;
var cropBox = self.cropBox;
return self.ready && self.cropped ? {
left: cropBox.left,
top: cropBox.top,
width: cropBox.width,
height: cropBox.height
} : {};
},
/**
* Set the crop box position and size with new data
*
* @param {Object} data
*/
setCropBoxData: function setCropBoxData(data) {
var self = this;
var cropBox = self.cropBox;
var aspectRatio = self.options.aspectRatio;
var widthChanged = void 0;
var heightChanged = void 0;
if ($.isFunction(data)) {
data = data.call(self.$element);
}
if (self.ready && self.cropped && !self.disabled && $.isPlainObject(data)) {
if (isNumber(data.left)) {
cropBox.left = data.left;
}
if (isNumber(data.top)) {
cropBox.top = data.top;
}
if (isNumber(data.width) && data.width !== cropBox.width) {
widthChanged = true;
cropBox.width = data.width;
}
if (isNumber(data.height) && data.height !== cropBox.height) {
heightChanged = true;
cropBox.height = data.height;
}
if (aspectRatio) {
if (widthChanged) {
cropBox.height = cropBox.width / aspectRatio;
} else if (heightChanged) {
cropBox.width = cropBox.height * aspectRatio;
}
}
self.renderCropBox();
}
},
/**
* Get a canvas drawn the cropped image
*
* @param {Object} options (optional)
* @return {HTMLCanvasElement} canvas
*/
getCroppedCanvas: function getCroppedCanvas(options) {
var self = this;
if (!self.ready || !window.HTMLCanvasElement) {
return null;
}
if (!$.isPlainObject(options)) {
options = {};
}
if (!self.cropped) {
return getSourceCanvas(self.$clone[0], self.image, options);
}
var data = self.getData();
var originalWidth = data.width;
var originalHeight = data.height;
var aspectRatio = originalWidth / originalHeight;
var scaledWidth = void 0;
var scaledHeight = void 0;
var scaledRatio = void 0;
if ($.isPlainObject(options)) {
scaledWidth = options.width;
scaledHeight = options.height;
if (scaledWidth) {
scaledHeight = scaledWidth / aspectRatio;
scaledRatio = scaledWidth / originalWidth;
} else if (scaledHeight) {
scaledWidth = scaledHeight * aspectRatio;
scaledRatio = scaledHeight / originalHeight;
}
}
// The canvas element will use `Math.Math.floor` on a float number, so Math.floor first
var canvasWidth = Math.floor(scaledWidth || originalWidth);
var canvasHeight = Math.floor(scaledHeight || originalHeight);
var canvas = $('<canvas>')[0];
var context = canvas.getContext('2d');
canvas.width = canvasWidth;
canvas.height = canvasHeight;
if (options.fillColor) {
context.fillStyle = options.fillColor;
context.fillRect(0, 0, canvasWidth, canvasHeight);
}
// https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
var parameters = function () {
var source = getSourceCanvas(self.$clone[0], self.image, options);
var sourceWidth = source.width;
var sourceHeight = source.height;
var canvasData = self.canvas;
var params = [source];
// Source canvas
var srcX = data.x + canvasData.naturalWidth * (Math.abs(data.scaleX || 1) - 1) / 2;
var srcY = data.y + canvasData.naturalHeight * (Math.abs(data.scaleY || 1) - 1) / 2;
var srcWidth = void 0;
var srcHeight = void 0;
// Destination canvas
var dstX = void 0;
var dstY = void 0;
var dstWidth = void 0;
var dstHeight = void 0;
if (srcX <= -originalWidth || srcX > sourceWidth) {
srcX = 0;
srcWidth = 0;
dstX = 0;
dstWidth = 0;
} else if (srcX <= 0) {
dstX = -srcX;
srcX = 0;
dstWidth = Math.min(sourceWidth, originalWidth + srcX);
srcWidth = dstWidth;
} else if (srcX <= sourceWidth) {
dstX = 0;
dstWidth = Math.min(originalWidth, sourceWidth - srcX);
srcWidth = dstWidth;
}
if (srcWidth <= 0 || srcY <= -originalHeight || srcY > sourceHeight) {
srcY = 0;
srcHeight = 0;
dstY = 0;
dstHeight = 0;
} else if (srcY <= 0) {
dstY = -srcY;
srcY = 0;
dstHeight = Math.min(sourceHeight, originalHeight + srcY);
srcHeight = dstHeight;
} else if (srcY <= sourceHeight) {
dstY = 0;
dstHeight = Math.min(originalHeight, sourceHeight - srcY);
srcHeight = dstHeight;
}
// All the numerical parameters should be integer for `drawImage` (#476)
params.push(Math.floor(srcX), Math.floor(srcY), Math.floor(srcWidth), Math.floor(srcHeight));
// Scale destination sizes
if (scaledRatio) {
dstX *= scaledRatio;
dstY *= scaledRatio;
dstWidth *= scaledRatio;
dstHeight *= scaledRatio;
}
// Avoid "IndexSizeError" in IE and Firefox
if (dstWidth > 0 && dstHeight > 0) {
params.push(Math.floor(dstX), Math.floor(dstY), Math.floor(dstWidth), Math.floor(dstHeight));
}
return params;
}();
context.imageSmoothingEnabled = !!options.imageSmoothingEnabled;
if (options.imageSmoothingQuality) {
context.imageSmoothingQuality = options.imageSmoothingQuality;
}
context.drawImage.apply(context, _toConsumableArray(parameters));
return canvas;
},
/**
* Change the aspect ratio of the crop box
*
* @param {Number} aspectRatio
*/
setAspectRatio: function setAspectRatio(aspectRatio) {
var self = this;
var options = self.options;
if (!self.disabled && !isUndefined(aspectRatio)) {
// 0 -> NaN
options.aspectRatio = Math.max(0, aspectRatio) || NaN;
if (self.ready) {
self.initCropBox();
if (self.cropped) {
self.renderCropBox();
}
}
}
},
/**
* Change the drag mode
*
* @param {String} mode (optional)
*/
setDragMode: function setDragMode(mode) {
var self = this;
var options = self.options;
var croppable = void 0;
var movable = void 0;
if (self.loaded && !self.disabled) {
croppable = mode === 'crop';
movable = options.movable && mode === 'move';
mode = croppable || movable ? mode : 'none';
self.$dragBox.data('action', mode).toggleClass('cropper-crop', croppable).toggleClass('cropper-move', movable);
if (!options.cropBoxMovable) {
// Sync drag mode to crop box when it is not movable(#300)
self.$face.data('action', mode).toggleClass('cropper-crop', croppable).toggleClass('cropper-move', movable);
}
}
}
};
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var CLASS_HIDDEN = 'cropper-hidden';
var REGEXP_DATA_URL = /^data:/;
var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
var Cropper = function () {
function Cropper(element, options) {
_classCallCheck(this, Cropper);
var self = this;
self.$element = $(element);
self.options = $.extend({}, DEFAULTS, $.isPlainObject(options) && options);
self.loaded = false;
self.ready = false;
self.completed = false;
self.rotated = false;
self.cropped = false;
self.disabled = false;
self.replaced = false;
self.limited = false;
self.wheeling = false;
self.isImg = false;
self.originalUrl = '';
self.canvas = null;
self.cropBox = null;
self.pointers = {};
self.init();
}
_createClass(Cropper, [{
key: 'init',
value: function init() {
var self = this;
var $this = self.$element;
var url = void 0;
if ($this.is('img')) {
self.isImg = true;
// Should use `$.fn.attr` here. e.g.: "img/picture.jpg"
url = $this.attr('src');
self.originalUrl = url;
// Stop when it's a blank image
if (!url) {
return;
}
// Should use `$.fn.prop` here. e.g.: "http://example.com/img/picture.jpg"
url = $this.prop('src');
} else if ($this.is('canvas') && window.HTMLCanvasElement) {
url = $this[0].toDataURL();
}
self.load(url);
}
// A shortcut for triggering custom events
}, {
key: 'trigger',
value: function trigger(type, data) {
var e = $.Event(type, data);
this.$element.trigger(e);
return e;
}
}, {
key: 'load',
value: function load(url) {
var self = this;
var options = self.options;
var $this = self.$element;
if (!url) {
return;
}
self.url = url;
self.image = {};
if (!options.checkOrientation || !window.ArrayBuffer) {
self.clone();
return;
}
// XMLHttpRequest disallows to open a Data URL in some browsers like IE11 and Safari
if (REGEXP_DATA_URL.test(url)) {
if (REGEXP_DATA_URL_JPEG.test(url)) {
self.read(dataURLToArrayBuffer(url));
} else {
self.clone();
}
return;
}
var xhr = new XMLHttpRequest();
xhr.onerror = $.proxy(function () {
self.clone();
}, this);
xhr.onload = function load() {
self.read(this.response);
};
if (options.checkCrossOrigin && isCrossOriginURL(url) && $this.prop('crossOrigin')) {
url = addTimestamp(url);
}
xhr.open('get', url);
xhr.responseType = 'arraybuffer';
xhr.withCredentials = $this.prop('crossOrigin') === 'use-credentials';
xhr.send();
}
}, {
key: 'read',
value: function read(arrayBuffer) {
var self = this;
var options = self.options;
var orientation = getOrientation(arrayBuffer);
var image = self.image;
var rotate = 0;
var scaleX = 1;
var scaleY = 1;
if (orientation > 1) {
self.url = arrayBufferToDataURL(arrayBuffer);
switch (orientation) {
// flip horizontal
case 2:
scaleX = -1;
break;
// rotate left 180°
case 3:
rotate = -180;
break;
// flip vertical
case 4:
scaleY = -1;
break;
// flip vertical + rotate right 90°
case 5:
rotate = 90;
scaleY = -1;
break;
// rotate right 90°
case 6:
rotate = 90;
break;
// flip horizontal + rotate right 90°
case 7:
rotate = 90;
scaleX = -1;
break;
// rotate left 90°
case 8:
rotate = -90;
break;
default:
}
}
if (options.rotatable) {
image.rotate = rotate;
}
if (options.scalable) {
image.scaleX = scaleX;
image.scaleY = scaleY;
}
self.clone();
}
}, {
key: 'clone',
value: function clone() {
var self = this;
var options = self.options;
var $this = self.$element;
var url = self.url;
var crossOrigin = '';
var crossOriginUrl = void 0;
if (options.checkCrossOrigin && isCrossOriginURL(url)) {
crossOrigin = $this.prop('crossOrigin');
if (crossOrigin) {
crossOriginUrl = url;
} else {
crossOrigin = 'anonymous';
// Bust cache (#148) when there is not a "crossOrigin" property
crossOriginUrl = addTimestamp(url);
}
}
self.crossOrigin = crossOrigin;
self.crossOriginUrl = crossOriginUrl;
var image = document.createElement('img');
if (crossOrigin) {
image.crossOrigin = crossOrigin;
}
image.src = crossOriginUrl || url;
var $clone = $(image);
self.$clone = $clone;
if (self.isImg) {
if ($this[0].complete) {
self.start();
} else {
$this.one('load', $.proxy(self.start, this));
}
} else {
$clone.one('load', $.proxy(self.start, this)).one('error', $.proxy(self.stop, this)).addClass('cropper-hide').insertAfter($this);
}
}
}, {
key: 'start',
value: function start() {
var self = this;
var $clone = self.$clone;
var $image = self.$element;
if (!self.isImg) {
$clone.off('error', self.stop);
$image = $clone;
}
getImageSize($image[0], function (naturalWidth, naturalHeight) {
$.extend(self.image, {
naturalWidth: naturalWidth,
naturalHeight: naturalHeight,
aspectRatio: naturalWidth / naturalHeight
});
self.loaded = true;
self.build();
});
}
}, {
key: 'stop',
value: function stop() {
var self = this;
self.$clone.remove();
self.$clone = null;
}
}, {
key: 'build',
value: function build() {
var self = this;
var options = self.options;
var $this = self.$element;
var $clone = self.$clone;
if (!self.loaded) {
return;
}
// Unbuild first when replace
if (self.ready) {
self.unbuild();
}
var $cropper = $(TEMPLATE);
var $cropBox = $cropper.find('.cropper-crop-box');
var $face = $cropBox.find('.cropper-face');
// Create cropper elements
self.$container = $this.parent();
self.$cropper = $cropper;
self.$canvas = $cropper.find('.cropper-canvas').append($clone);
self.$dragBox = $cropper.find('.cropper-drag-box');
self.$cropBox = $cropBox;
self.$viewBox = $cropper.find('.cropper-view-box');
self.$face = $face;
// Hide the original image
$this.addClass(CLASS_HIDDEN).after($cropper);
// Show the clone image if is hidden
if (!self.isImg) {
$clone.removeClass('cropper-hide');
}
self.initPreview();
self.bind();
options.aspectRatio = Math.max(0, options.aspectRatio) || NaN;
options.viewMode = Math.max(0, Math.min(3, Math.round(options.viewMode))) || 0;
self.cropped = options.autoCrop;
if (options.autoCrop) {
if (options.modal) {
self.$dragBox.addClass('cropper-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('cropper-move').data('action', 'all');
}
if (!options.highlight) {
$face.addClass('cropper-invisible');
}
if (options.background) {
$cropper.addClass('cropper-bg');
}
if (!options.cropBoxResizable) {
$cropBox.find('.cropper-line, .cropper-point').addClass(CLASS_HIDDEN);
}
self.setDragMode(options.dragMode);
self.render();
self.ready = true;
self.setData(options.data);
// Trigger the ready event asynchronously to keep `data('cropper')` is defined
self.completing = setTimeout(function () {
if ($.isFunction(options.ready)) {
$this.one('ready', options.ready);
}
self.trigger('ready');
self.trigger('crop', self.getData());
self.completed = true;
}, 0);
}
}, {
key: 'unbuild',
value: function unbuild() {
var self = this;
if (!self.ready) {
return;
}
if (!self.completed) {
clearTimeout(self.completing);
}
self.ready = false;
self.completed = false;
self.initialImage = null;
// Clear `initialCanvas` is necessary when replace
self.initialCanvas = null;
self.initialCropBox = null;
self.container = null;
self.canvas = null;
// Clear `cropBox` is necessary when replace
self.cropBox = null;
self.unbind();
self.resetPreview();
self.$preview = null;
self.$viewBox = null;
self.$cropBox = null;
self.$dragBox = null;
self.$canvas = null;
self.$container = null;
self.$cropper.remove();
self.$cropper = null;
}
}], [{
key: 'setDefaults',
value: function setDefaults(options) {
$.extend(DEFAULTS, $.isPlainObject(options) && options);
}
}]);
return Cropper;
}();
$.extend(Cropper.prototype, render);
$.extend(Cropper.prototype, preview);
$.extend(Cropper.prototype, events);
$.extend(Cropper.prototype, handlers);
$.extend(Cropper.prototype, change);
$.extend(Cropper.prototype, methods);
var NAMESPACE = 'cropper';
var OtherCropper = $.fn.cropper;
$.fn.cropper = function jQueryCropper(option) {
for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
var result = void 0;
this.each(function (i, element) {
var $this = $(element);
var data = $this.data(NAMESPACE);
if (!data) {
if (/destroy/.test(option)) {
return;
}
var options = $.extend({}, $this.data(), $.isPlainObject(option) && option);
$this.data(NAMESPACE, data = new Cropper(element, options));
}
if (typeof option === 'string') {
var fn = data[option];
if ($.isFunction(fn)) {
result = fn.apply(data, args);
}
}
});
return typeof result !== 'undefined' ? result : this;
};
$.fn.cropper.Constructor = Cropper;
$.fn.cropper.setDefaults = Cropper.setDefaults;
// No conflict
$.fn.cropper.noConflict = function noConflict() {
$.fn.cropper = OtherCropper;
return this;
};
exports('cropper', $.fn.cropper);
});
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