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UploadPreview.js
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UploadPreview.js
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/*!
* @Author: 李燕南 [email protected]
* @Date: 2017-08-15 16:59:16
* @Last Modified by: 李燕南[email protected]
* @Last Modified time: 2018-04-19 17:32:49
* @git: https://github.com/941477276/UploadPreview.git
*/
;
(function (factory){
if ( typeof define === "function" && define.amd ) {
define( ["jquery"], factory );
} else if (typeof module === "object" && module.exports) {
module.exports = factory( require( "jquery" ) );
} else {
window.UploadPreview = factory( jQuery );
try{
if(typeof define === "function"){
define(function (require){
return factory(require("jquery"));
});
}
}catch(e){console.log(e);}
}
})(function($) {
function UploadPreview(options){
/* 原先builder对象是存储在UploadPreview.prototype对象中的，但在实际开发中一个页面可能在多个地方都
需要上传文件，并且每个上传的预览的样式可能还不一样，如果放在UploadPreview.prototype对象中则不能灵活的
改变预览的样式，因为一个地方改了，其他地方都改了。所以需要将builder对象存储在每个UploadPreview实例本身 */
this.builder = {
buildTool: function (onlyDel, datas){/*创建工具按钮*/
var htmlArr = [],
datasArr = [],
datasStr = '';
if(datas && $.isPlainObject(datas)){
$.each(datas, function (attr,val){
datasArr.push("data-" + attr + "=" + val);
});
datasStr = datasArr.join(" ");
}
htmlArr.push('<div class="file-panel">');
htmlArr.push(' <span class="cancel" ' + datasStr + '>删除</span>');
if(!onlyDel){
htmlArr.push(' <span class="rotateRight" ' + datasStr + '>向右旋转</span>');
htmlArr.push(' <span class="rotateLeft" ' + datasStr + '>向左旋转</span>');
}
htmlArr.push('</div>');
return htmlArr.join("");
},
buildUploadErrorMsg: function (errorMsg, delBtn, retryBtn){/*创建上传失败后的提示*/
var del = '',
retry = '';
if(delBtn && delBtn != -1){
del = '<a href="javascript: void(0);" class="del-this">删除</a>';
if(retryBtn && retryBtn != -1){
del += '| ';
}
}
if(retryBtn && retryBtn != -1){
retry = '<a href="javascript: void(0);" class="retry-this">重试</a> ';
}
return (!errorMsg && !delBtn && !retryBtn) ? '' : ('<p class="error">' + errorMsg + del + retry + '</p>');
},
buildPreviewBox: function (options, toolBar){/*创建图像预览框*/
var htmlArr = [],
previewElement = "div",
previewClass = "";
if(options && $.isPlainObject(options)){
previewElement = options.previewElement || "div";
previewClass = options.previewClass || "";
}
htmlArr.push('<' + previewElement + ' class="preview-box ' + previewClass + '">');
//htmlArr.push(' <p class="title"></p>');
htmlArr.push(' <div class="imgWrap"><p class="previewing">预览中...</p></div>');
htmlArr.push(' <p class="progress"><span></span></p>');
if(toolBar && typeof toolBar === "string"){
htmlArr.push(toolBar);
}
htmlArr.push('</' + previewElement + '>');
return htmlArr.join("");
}
}
this.Version = "1.1.0";
this._init(options);
}
/*初始化*/
UploadPreview.prototype._init = function (options){
this.options = {
previewInfo: {//预览参数配置
width: -1, //预览图片的宽度
height: -1, //预览图片的高度
viewImgHorizontal: true,//预览图是否水平垂直居中
previewClass: "",//每个预览框的class
previewElement: "div",//每个预览框的元素，只能为字符串
showToolBtn: true, //当鼠标放在图片上时是否显示工具按钮,
toolBtnShowOnUpload: false,//工具按钮在图片上传完成后是否显示
onlyDel: false,//是否只生成"删除"按钮
previewWrap: null,//包裹所有预览图片的父级元素
errorTipShow: true,//上传失败后是否生成错误提示，及相应的操作按钮
errorMsg: "上传失败, ",//上传失败后的提示文字
delBtn: "删除",//当上传失败时会显示错误信息，默认会有"删除"按钮，并且点击后可以删除当前文件，如果值为-1则不创建
retryBtn: "重试",//当上传失败时会显示错误信息，默认会有"重试"按钮，并且点击后可以重新上传当前文件，如果值为-1则不创建
changeUploadBtnText: true,//在上传过程中是否改变"开始上传"按钮的文字，如果按钮文字从"开始上传"变成了"暂停上传"，再次点击按钮就会暂停上传。如果文字从"暂停上传"变成了"继续上传"，再次点击按钮就会继续上传
pauseText: "暂停上传",
continueText: "继续上传"
},
drag: {//拖拽上传配置
dnd: null,// 指定Drag And Drop拖拽的容器，如果不指定，则不启动
disableGlobalDnd: false,// 是否禁掉整个页面的拖拽功能，如果不禁用，图片拖进来的时候会默认被浏览器打开。
paste: null// 指定监听paste事件的容器，如果不指定，不启用此功能。此功能为通过粘贴来添加截屏的图片。建议设置为document.body.
},
btns: {
uploadBtn: null, //开始上传按钮
retryBtn: null, //用户自定义"重新上传"按钮
chooseBtn: null,// 指定选择文件的按钮容器，不指定则不创建按钮。选择器支持 id, class, dom。
chooseBtnText: "选择图片",//选择文件按钮显示的文字
chooseBtnCanUseOnFinish: true,//当所有文件上传结束后"选择文件"按钮是否可用
uploadBtnCanUsOnFinish: true//当所有文件上传结束后"开始上传"按钮是否可用
},
ignore: {//指定排除哪些类型的文件不可以上传
extensions: '',
mimeTypes: ''
},
accept: {//指定允许哪些类型的文件可以上传
extensions: '',
mimeTypes: ''
},
auto: false, //是否自动上传
fileVal: "file", // [默认值：'file'] 设置文件上传域的name。
method: "POST",//请求方式，默认post
sendAsBlob: false,//是否以二进制流的形式发送
pictureOnly: true,//只能上传图片，设置了pictureOnly后，设置accept是无效的
multiple: true, //是否支持多选能力
swf: "Uploader.swf", //swf文件路径
url: "upload.php", //图片上传的路径
datas: null, //上传的参数
header: {},// 自定义头部
// ios是否只能摄像头拍照，而不能选择其他文件或图片。在webuploader0.1.7中会有这样的情况
iosOnlyCamera: false,
// 不压缩image, 默认如果是jpeg，文件上传前会压缩一把再上传！false为不压缩
resize: false,
//是否可以重复上传，即上传一张图片后还可以再次上传。默认是不可以的，false为不可以，true为可以
duplicate: false,
threads: 3,//上传并发数。允许同时最大上传进程数。
compress: false,//图片在上传前不进行压缩
maxFileNum: 50, //最大上传文件个数
maxFileTotalSize: 524288000, //最大上传文件大小，默认500M
maxFileSize: 5242880, //单个文件最大大小，默认5M
beforeFileQueued: function (){}, //文件添加进队列之前的处理函数,如果回调的返回值为false，则不添加该文件进队列中
fileQueued: function (){}, //当有文件进来后所处理函数
fileDequeued: function (){}, //当预览图销毁时或文件被删除时所处理函数
uploadStart: function (){},//上传开始时执行的函数
uploadComplete: function (){}, //每个文件上传完成时所执行的函数，不管成功或失败都会执行
uploadError: function (){}, //上传出错时执行的函数
notSupport: function (){}, //当浏览器不支持该插件时所执行的函数
uploadSuccess: function (){}, //当上传成功（此处的上传成功指的是上传图片请求成功，并非图片真正上传到服务器）后所执行的函数
uploadFinish: function (){},//上传结束时执行的函数
error: function (){},//当validate不通过时（如文件数量超出、文件大小超出、类型不匹配等等），会以派送错误事件的形式通知调用者。
onDel: function (){},//当点击预览框中的"删除"按钮时所触发的函数，如果此函数返回false，则点击"删除"不会删除预览框及文件
onDelUploaded: function (){}// 当点击预览框中的"删除"按钮时所触发的函数。该函数必须在文件上传成功后才会触发
}
if(!options || !$.isPlainObject(options)){
throw "必须传递一个包含上传文件必要参数的对象！";
}
$.extend(true, this.options, options);
var that = this;
var accept = { //指定接受哪些类型的文件
title: 'Images',
extensions: 'gif,jpg,jpeg,bmp,png',
mimeTypes: 'image/png,image/gif,image/jpeg,image/jpg,image/bmp'
},
optionAccept = this.options.accept;
//判断用户是否设置了上传文件的类型
if(optionAccept && $.isPlainObject(optionAccept)){
var extensions = optionAccept.extensions || "",
mimeTypes = optionAccept.mimeTypes || "";
accept.extensions = accept.extensions += "," + (extensions.replace(".",""));
accept.mimeTypes = accept.mimeTypes += "," + mimeTypes;
// 解决webuploader0.1.7 在ios中只能使用摄像头拍照的bug
if(!this.options.iosOnlyCamera && WebUploader.Base.os.ios){
accept.mimeTypes += 'text/plain,application/msword,application/octet-stream,application/vnd.ms-excel,application/x-shockwave-flash,application/gzip';
}
}
if(!this.options.pictureOnly){
accept = null;
}
this.options.accept = accept;
this.fileLen = 0;
this.faildLen = 0;
this.retryBtn = this.options.btns.retryBtn ? $(this.options.btns.retryBtn) : null;
// 实例化uploader
this.uploader = WebUploader.create({
pick: { //指定选择文件的按钮容器，不指定则不创建按钮。
id: $(this.options.btns.chooseBtn)[0], // 指定选择文件的按钮容器，不指定则不创建按钮。选择器支持 id, class, dom。
label: this.options.btns.chooseBtnText || "选择文件",
multiple: this.options.multiple //是否支持多选能力
},
accept: accept,
auto: this.options.auto, //是否自动上传
swf: this.options.swf, // swf文件路径
server: this.options.url,
fileVal: this.options.fileVal,
chunked: true, //是否要分片处理大文件上传。
dnd: this.options.drag.dnd,
disableGlobalDnd: this.options.drag.disableGlobalDnd,
paste: this.options.drag.paste,
method: this.options.method.toUpperCase() || "POST",
threads: this.options.threads || 3,
resize: this.options.resize,
duplicate: this.options.duplicate,
compress: this.options.compress,
sendAsBlob: this.options.sendAsBlob,
fileNumLimit: this.options.maxFileNum, //设置上传文件总数量, 超出则不允许加入队列
fileSizeLimit: this.options.maxFileTotalSize, // 设置上传文件总大小, 超出则不允许加入队列
fileSingleSizeLimit: this.options.maxFileSize // 设置单个上传文件大小, 超出则不允许加入队列
});
//给uploader绑定 beforeFileQueued 事件
this._beforeFileQueued();
//给uploader绑定 fileQueued 事件
this._fileQueued();
//给uploader绑定 fileDequeued 事件
this._fileDequeued();
//个uploader绑定 uploadProgress 事件
this._error();
//给uploader绑定 uploadBeforeSend 事件
this._uploadBeforeSend();
//个uploader绑定 uploadProgress 事件
this._startUpload();
//给uploader绑定 uploadProgress 事件
this._uploadProgress();
//个uploader绑定 stopUpload 事件
this._stopUpload();
//个uploader绑定 uploadComplete 事件
this._uploadComplete();
//给uploader绑定 uploadFinished 事件
this._uploadFinished();
//给uploader绑定 uploadAccept 事件
this._uploadAccept();
//给uploader绑定 uploadError 事件
this._uploadError();
//判断浏览器是否支持transition属性
this.supportTransition = (function() {
var s = document.createElement('p').style,
r = 'transition' in s || 'WebkitTransition' in s || 'MozTransition' in s || 'msTransition' in s || 'OTransition' in s;
s = null;
return r;
})();
//存储所有文件的上传进度信息，以文件的id为key，值为上传的进度
//其中total为上传的总信息，它也是一个对象，len为上传的文件的总数量，percentages为上传的总进度
this.percentages = {
total: {
len: 0,
percentages: 0
}
};
//给"开始上传"按钮进行一些初始化
this.uploadBtn = $(this.options.btns.uploadBtn).addClass('upload-ready');
this.uploadBtn.attr("data-originText",this.uploadBtn.html());
/*给"开始上传"按钮绑定事件*/
this._uploadBtnBindEvent();
this.isProgress = false;
this.files = {};//存储选择的文件
if(this.options.previewInfo.previewWrap){
$(this.options.previewInfo.previewWrap).addClass('_filelist');
}
// 解决webuploader0.1.7 在ios中只能使用摄像头拍照的bug
if(!this.options.iosOnlyCamera && WebUploader.Base.os.ios){
var $btn = $(this.options.btns.chooseBtn),
$input = null;
setTimeout(function (){
$input = $btn.find("input");
if($input.attr("capture") == "camera"){
$input.removeAttr("capture");
}
}, 1800);
}
}
/*给uploader绑定 beforeFileQueued 事件*/
UploadPreview.prototype._beforeFileQueued = function (){
var that = this,
uploader = this.uploader,
ignore = this.options.ignore,
ignoreExtensions = "",
ignoreMimeType = "";
if(ignore){
ignoreExtensions = ignore.extensions;
ignoreMimeType = ignore.mimeTypes;
}
if(ignoreExtensions.length > 0){
ignoreExtensions = ignoreExtensions.replace(".","");
}
uploader.on("beforeFileQueued", function (WuFile){
//判断用户选择的文件是否是用户需要排除的类型，如果是则不添加到队列中
var errorInfo = {};
if(ignoreExtensions.length > 0){
if(new RegExp(WuFile.source.ext).test(ignoreExtensions)){
errorInfo.code = "Q_TYPE_DENIED";
errorInfo.size = WuFile.size;
errorInfo.type = WuFile.type;
errorInfo.ext = WuFile.source.ext;
errorInfo.msg = "文件类型不正确！";
that.options.error(errorInfo, WuFile);
return false;
}
}
if(ignoreMimeType.length > 0){
if(new RegExp(WuFile.type).test(ignoreMimeType)){
errorInfo.code = "Q_TYPE_DENIED";
errorInfo.size = WuFile.size;
errorInfo.type = WuFile.type;
errorInfo.ext = WuFile.source.ext;
errorInfo.msg = "文件类型不正确！";
that.options.error(errorInfo, WuFile);
return false;
}
}
if((that.getFileLength() + 1) > that.uploader.options.fileNumLimit){
errorInfo.code = "Q_EXCEED_NUM_LIMIT";
errorInfo.size = that.uploader.options.fileNumLimit;
errorInfo.type = WuFile.type;
errorInfo.ext = WuFile.source.ext;
errorInfo.msg = "文件总数量超出！";
that.options.error(errorInfo, WuFile);
return false;
}
if(!(WuFile.id in that.files)){
that.files[WuFile.id] = WuFile;
that.fileLen ++;
}
if(!that.chooseBtnInput){
that.chooseBtnInput = $(that.options.btns.chooseBtn).find("input");
if(that.chooseBtnInput.length == 0){
that.chooseBtnInput = $(that.options.btns.chooseBtn).find("object");
}
that.chooseBtnCanUse = true;
}
// 如果beforeFileQueued回调的返回值为false，则不添加该文件进队列中
var flag = that.options.beforeFileQueued.call(this, WuFile);
if(flag === false){
return false;
}
return true;
});
}
/*给uploader绑定 fileQueued 事件*/
UploadPreview.prototype._fileQueued = function (){
var that = this,
uploader = this.uploader;
uploader.on("fileQueued", function (WuFile){
//渲染预览框
var previewBox = that.render(WuFile,(!/image\//.test(WuFile.type))),//如果文件不是图片则只生成删除按钮
imgWrap = previewBox.find(".imgWrap");
if(/image\//.test(WuFile.type)){//如果是图片则直接生成预览图
var width = that.options.previewInfo.width,//用户设置的宽度
height = that.options.previewInfo.height,
imgWrapWh = {
width: imgWrap.width(),
height: imgWrap.height()
},
wh = {};
if(width > 0 && height > 0){
wh.width = width;
wh.height = height;
}
// 使用用户传递的宽高
if(wh.width){
that.createPreviewImg(WuFile, wh.width, wh.height, function (file, img, src){
imgWrap.find(".previewing").remove();
imgWrap.prepend(img);
that.options.fileQueued.call(this, file, img, src);
});
}else{
//等比例缩放宽高
uploader.makeThumb(WuFile, function(error, src) {
wh = UploadPreview.calculateWh(imgWrapWh.width, imgWrapWh.height, WuFile._info.width, WuFile._info.height);
that.createPreviewImg(WuFile, wh.width, wh.height, function (file, img, src){
imgWrap.find(".previewing").remove();
imgWrap.prepend(img);
that.options.fileQueued.call(this, file, img, src);
});
});
}
}else{
var notSupportHtml = '<div class="not-support-preview">文件: <b>' + (WuFile.name) + ' </b>不支持预览</div>';
imgWrap.find(".previewing").remove();
imgWrap.prepend(notSupportHtml);
that.options.fileQueued.call(this, WuFile);
}
//设置当前文件的上传进度为0
that._uploadPercentage("add", WuFile.id, 0);
if(!that.WUFile){
that.WUFile = WuFile.constructor;
}
that._WuFileBindStatusChangeEvent(WuFile);
});
}
/*给uploader绑定 fileDequeued 事件*/
UploadPreview.prototype._fileDequeued = function (){
var that = this;
that.uploader.on("fileDequeued", function (WuFile){
var previewBox = $("#" + WuFile.id);
if(previewBox.length > 0){
$("#" + WuFile.id).remove();//删除文件预览框
}
if(WuFile.id in that.files){
delete that.files[WuFile.id];
that.fileLen--;
}
that._uploadPercentage("delete", WuFile.id);//修改进度信息
that.options.fileDequeued.apply(this, arguments);
});
}
/*给添加到队列中的文件绑定 statuschange 事件*/
UploadPreview.prototype._WuFileBindStatusChangeEvent = function (WuFile){
WuFile.on("statuschange", function (currentState, prev){
/* 文件状态值，具体包括以下几种类型：
inited 初始状态
queued 已经进入队列, 等待上传
progress 上传中
complete 上传完成。
error 上传出错，可重试
interrupt 上传中断，可续传。
invalid 文件不合格，不能重试上传。会自动从队列中移除。
cancelled 文件被移除。*/
switch(currentState){
case "inited":
break;
case "queued":
break;
case "progress":
break;
case "complete":
break;
case "error":
break;
case "interrupt":
break;
case "invalid":
break;
default:
break;
}
});
}
/*给uploader绑定 uploadBeforeSend 事件。局部设置，给每个独立的文件上传设置。*/
UploadPreview.prototype._uploadBeforeSend = function (){
var that = this;
this.uploader.on( 'uploadBeforeSend', function( block, data, header) {
/* block为分块数据。// file为分块对应的file对象。var file = block.file;修改data可以控制发送哪些携带数据。
默认会传递当前这张图的旋转角度*/
// 将存在file对象中的md5数据携带发送过去。// data.fileMd5 = file.md5;// 删除其他数据// delete data.key;
var globalDatas = that.options.datas,
_fn = function (attr, val){
data[attr] = val;
};
//将全局的额外数据添加进额外数据中
if(globalDatas && $.isPlainObject(globalDatas)){
$.each(globalDatas, _fn);
}
var fileDatas = block.file.datas;
//当前文件中的数据添加进额外数据中
if(fileDatas && $.isPlainObject(fileDatas)){
$.each(fileDatas, _fn);
}
// 添加自定义header
if(that.options.header && $.isPlainObject(that.options.header)){
$.extend(true, header, that.options.header);
}
data.rotation = block.file.rotation;
});
}
/*给uploader绑定 uploadProgress 事件*/
UploadPreview.prototype._startUpload = function (){
var that = this;
that.uploader.on("startUpload", function (){
//开始上传后"选择文件"按钮不可用
if(that.chooseBtnCanUse && that.chooseBtnInput && that.chooseBtnInput[0]){
//that.chooseBtnEnableUse(false);
that.disable();
that.chooseBtnCanUse = false;
}
if(that.options.previewInfo.changeUploadBtnText){
var uploadBtn = that.uploadBtn;
if(uploadBtn && uploadBtn.length > 0){
uploadBtn.addClass('upload-pause').removeClass('upload-ready upload-continue').html(that.options.previewInfo.pauseText);
uploadBtn[0].unabled = false;
uploadBtn[0].isProgress = true;
}
}
//给"重新上传"按钮绑定事件
if(that.retryBtn && that.retryBtn.length > 0 && !that.retryBtnBindedEvent){
that.retryBtn.on("click", function (){
if(this.unable){return;}
that.retry();
this.unable = true;
});
that.retryBtnBindedEvent = true;
}
that.options.uploadStart.call(this);
});
}
/*个uploader绑定 uploadProgress 事件*/
UploadPreview.prototype._uploadProgress = function (){
var that = this;
that.uploader.on("uploadProgress", function (WuFile, percentage){
//设置显示的进度条的长度
UploadPreview.setProgressWidth(WuFile.id, (percentage * 100 + "%"));
//修改当前文件的上传进度
that._uploadPercentage("update", WuFile.id, percentage);
// var previewBox = $("#" + WuFile.id);
/*if(!that.options.previewInfo.toolBtnShowOnUpload){
if(!previewBox.showToolEventRemoved){
previewBox.off("mouseenter.showTool").off("mouseleave.showTool");
previewBox.showToolEventRemoved = true;
}
}*/
});
}
/*个uploader绑定 stopUpload 事件*/
UploadPreview.prototype._stopUpload = function (){
var that = this;
that.uploader.on("stopUpload", function (WuFile, percentage){
if(that.options.previewInfo.changeUploadBtnText){
var uploadBtn = that.uploadBtn;
if(uploadBtn && uploadBtn.length > 0){
uploadBtn.addClass('upload-continue').removeClass('upload-ready upload-pause').html(that.options.previewInfo.continueText);
uploadBtn[0].unabled = false;
uploadBtn[0].isProgress = false;
}
//如果用户设置了文件上传上传完成、上传结束后工具栏可用，则"选择文件"按钮重新变可用
if(that.chooseBtnInput && that.chooseBtnInput[0] && that.options.previewInfo.toolBtnShowOnUpload){
that.enable();
that.chooseBtnCanUse = true;
}
}
});
}
/*个uploader绑定 uploadComplete 事件*/
UploadPreview.prototype._uploadComplete = function (){
var that = this;
that.uploader.on("uploadComplete", function (WuFile){
//如果用户设置了文件上传上传完成、上传结束后工具栏可用，则"选择文件"按钮重新变可用
if(that.chooseBtnInput && that.chooseBtnInput[0] && that.options.previewInfo.toolBtnShowOnUpload){
that.enable();
that.chooseBtnCanUse = true;
}
//console.log(WuFile);
var previewBox = $("#" + WuFile.id);
if(previewBox.find(".progress").length > 0){
previewBox.find(".progress").hide();
}
that.options.uploadComplete.call(this, WuFile);
});
}
/*给uploader绑定 uploadFinished 事件*/
UploadPreview.prototype._uploadFinished = function (){
var that = this;
that.uploader.on("uploadFinished", function (){
//上传完成、上传结束后"选择文件"按钮重新变可用
if(!that.chooseBtnCanUse && that.chooseBtnInput && that.chooseBtnInput[0]){
if(that.options.btns.chooseBtnCanUseOnFinish){
//that.chooseBtnEnableUse(true);
that.enable();
that.chooseBtnCanUse = true;
}else{
//that.chooseBtnEnableUse(false);
that.disable();
that.chooseBtnCanUse = false;
}
}
if(that.options.previewInfo.changeUploadBtnText){
var uploadBtn = that.uploadBtn;
if(!uploadBtn || uploadBtn.length == 0){return;}
//当所有文件都上传后(不论成功或失败)，再调用upload()方法都不起作用，所以这里直接让按钮不可点
if(that.options.btns.uploadBtnCanUsOnFinish){
uploadBtn.removeClass('upload-continue upload-pause').addClass('upload-ready').html(uploadBtn.data("origintext"));
uploadBtn[0].unabled = false;
uploadBtn[0].isProgress = false;
}else{
uploadBtn.removeClass('upload-continue upload-pause').addClass('upload-ready unable-btn').html(uploadBtn.data("origintext"));
uploadBtn[0].unabled = true;
uploadBtn[0].isProgress = false;
}
}
//给"重新上传"按钮设置为可用
if(that.retryBtn && that.retryBtn.length > 0 && that.retryBtnBindedEvent){
that.retryBtn.each(function (){
this.unable = false;
});
}
that.options.uploadFinish.call(this);
});
}
/*给uploader绑定 uploadError 事件*/
UploadPreview.prototype._uploadError = function (){
var that = this;
this.uploader.on('uploadError', function(WuFile, reason) {
that.faildLen++;
//修改当前文件的上传进度
that._uploadPercentage("update", WuFile.id, 0);
//显示上传失败的提示
var previewBox = $("#" + WuFile.id);
if(previewBox.find(".error").length > 0){
previewBox.find(".error").show();
}else{
if(that.options.previewInfo.errorTipShow){
that.renderUploadError(previewBox, WuFile);
}
}
if(!that.options.previewInfo.toolBtnShowOnUpload){
// console.log(123);
if(!previewBox.showToolEventRemoved){
previewBox.off("mouseenter.showTool").off("mouseleave.showTool");
previewBox.showToolEventRemoved = true;
}
}else{
//如果用户设置了文件上传上传完成、上传结束后工具栏可用，则"选择文件"按钮重新变可用
if(that.chooseBtnInput && that.chooseBtnInput[0]){
//that.chooseBtnEnableUse(true);
that.enable();
that.chooseBtnCanUse = true;
}
}
//设置显示的进度条的长度
UploadPreview.setProgressWidth(WuFile.id, 0);
that.options.uploadError.apply(this,arguments);
});
}
/*给uploader绑定 uploadAccept 事件
如何判断文件是否上传成功。默认如果啥也不处理，只要有返回数据就认为是成功，就算返回的是错误信息，也认为是成功了。
但是，在认为成功前会派送一个事件uploadAccept，这个事件是用来询问是否上传成功的。
在这个事件中你可以拿到上传的是哪个文件，以及对应的服务端返回reponse
*/
UploadPreview.prototype._uploadAccept = function (){
var that = this;
this.uploader.on('uploadAccept', function(file, response) {
that.options.uploadSuccess.apply(this, arguments);
});
}
/*给uploader绑定 error 事件*/
UploadPreview.prototype._error = function (){
var that = this;
this.uploader.on("error", function (code, size, WuFile){
var errorInfo = {};
errorInfo.code = code;
errorInfo.size = size;
if(WuFile){
errorInfo.type = WuFile.type;
errorInfo.ext = WuFile.source.ext;
}
switch(code){
case "Q_TYPE_DENIED":
errorInfo.msg = "文件类型不正确！";
break;
case "Q_EXCEED_NUM_LIMIT":
errorInfo.msg = "文件总数量超出！";
break;
case "Q_EXCEED_SIZE_LIMIT":
errorInfo.msg = "文件总体积超出！";
break;
case "F_EXCEED_SIZE":
errorInfo.msg = "单个文件体积超出！";
break;
default:
errorInfo.msg = "";
break;
}
that.options.error(errorInfo, WuFile);
});
}
/*修改当前的进度信息*/
UploadPreview.prototype._uploadPercentage = function (type, id, percentage){
var that = this;
if(type == "add"){
that.percentages[id] = percentage;
that.percentages.total.len += 1;
that.percentages.total.percentages += percentage;
}else if(type == "update"){
that.percentages[id] = percentage;
var percentages = that.percentages;
that.percentages.total.percentages = 0;
$.each(percentages,function (attr, val){
if(attr != "total"){
that.percentages.total.percentages += val;
}
});
}else if(type == "delete"){
that.percentages.total.len -= 1;
delete that.percentages[id];
var percentages = that.percentages;
that.percentages.total.percentages = 0;
$.each(percentages,function (attr, val){
if(attr != "total"){
that.percentages.total.percentages += val;
}
});
}
}
/*上传文件*/
UploadPreview.prototype.upload = function (){
this.uploader.upload();
return this;
}
/*重新上传文件*/
UploadPreview.prototype.retry = function (file){
if(file && typeof file === "object"){
this.uploader.retry(file);
}else{
this.uploader.retry();
}
return this;
}
/*停止上传文件*/
UploadPreview.prototype.stop = function (){
this.uploader.stop();
return this;
}
/*获取选择的文件数量*/
UploadPreview.prototype.getFileLength = function (status){
return this.uploader.getFiles(status || "queued").length;
}
/*获取文件统计信息*/
UploadPreview.prototype.getStats = function (){
return this.uploader.getStats();
}
/*获取所有文件*/
UploadPreview.prototype.getFiles = function (){
return this.files;
}
/*销毁webuploader实例*/
UploadPreview.prototype.destroy = function (){
this.uploader.destroy();
}
/*给上传的文件添加额外的参数
@param WuFile: 这个参数可以为WUFile对象或WUFile对象的id，传递这个参数后就可以给该文件设置额外参数
@param data: 该参数是需要添加到文件中的额外参数，该参数必须为一个对象，并且不能是伪数组或数组
*/
UploadPreview.prototype.setData = function (WuFile, data){
var uploader = this.uploader,
argsLen = arguments.length,
that = this;
if(argsLen == 1){
data = WuFile;
}else if(argsLen == 2){
/*如果当前对象中没有WUFile则说明用户还未选择任何文件，此时添加数据就给全局的this.options.datas添加数据。
如果传递的WuFile的构造函数不等于当前对象中的WUFile，说明传递的file不对，那么此时也会给全局的this.options.datas添加数据。
否则就是给当前file添加额外数据*/
if(!$.isPlainObject(data)){ return; }
if( !this.WUFile && WuFile.constructor !== this.WUFile){
}else if(typeof WuFile === "string"){
//如果传递过来的WuFile是
var files = uploader.getFiles();
$.each(files, function (index, file){
if(file.id === WuFile){
$.each(data, function (attr,val){
if(file.datas == undefined){
file.datas = {};
}
file.datas[attr] = val;
});
}
});
return;
}else{
$.each(data, function (attr,val){
if(WuFile.datas == undefined){
WuFile.datas = {};
}
WuFile.datas[attr] = val;
});
return;
}
}
if(!$.isPlainObject(data)){ return; }
if(!$.isPlainObject(that.options.datas)){
that.options.datas = {};
}
$.each(data, function (attr,val){
that.options.datas[attr] = val;
});
return this;
}
/*动态设置header
@param WuFile: WuFile可以为一个file对象，也可以为file对象的id
*/
UploadPreview.prototype.setHeader = function (header){
var that = this;
if(!header || !$.isPlainObject(header)){
return;
}
$.extend(true, that.options.header, header);
return this;
}
/*删除指定文件
@param WuFile: WuFile可以为一个file对象，也可以为file对象的id
*/
UploadPreview.prototype["delete"] = function (WuFile){
if(!WuFile){return;}
this.uploader.removeFile(WuFile);
return this;
}
/*
按钮重新初始化。在webuploader中如果选择文件的按钮这个div
自身或者其所处的容器是不可见的，在初始化过程中会因为取不到宽高，
导致id未rt_开头的div的宽高只有1px × 1px。为了解决这个问题webuploader提供了refresh方法。
可参考： http://www.jianshu.com/p/b59ebac54c43
网上这个这种做法是行不通的，但思路可以。后来我改了webuploader插件的内部代码将这个功能实现了！
*/
/*重新绘制"选择文件"按钮*/
UploadPreview.prototype.refresh = function (btns){
this.uploader.refresh();
return this;
}
/*禁用"选择文件"按钮*/
UploadPreview.prototype.disable = function (btns){
this.uploader.disable();
return this;
}
/*启用"选择文件"按钮*/
UploadPreview.prototype.enable = function (btns){
this.uploader.enable();
return this;
}
/*渲染预览框，并绑定事件*/
UploadPreview.prototype.render = function (WuFile,onlyDel){
var that = this,
toolBar = '',
previewBox = '',
builder = this.builder;
if(this.options.previewInfo.showToolBtn){
//创建工具按钮
toolBar = builder.buildTool(onlyDel || this.options.previewInfo.onlyDel, {
ruid: WuFile.source.ruid || "",
id: WuFile.id//此id可以用来删除当前的这张图片及给当前这张图片添加额外的数据
});
}
//创建图像预览框
previewBox = builder.buildPreviewBox({
previewElement: this.options.previewInfo.previewElement,
previewClass : this.options.previewInfo.previewClass
}, toolBar);
previewBox = $(previewBox).attr("data-ruid", WuFile.source.ruid);
previewBox[0].id = WuFile.id;
WuFile.rotation = 0;
//给工具按钮绑定点击事件
var panel = previewBox.find(".file-panel");
if(panel.length > 0){
var $imgWrap = previewBox.find(".imgWrap"),
rotation = WuFile.source.rotation,
deg = '';
//给预览框绑定hover事件，以显示工具按钮
previewBox.on("mouseenter.showTool", function (){
// 如果当前文件已经上传完成，并且文件上传完成后还要显示工具条，则把工具条中的旋转按钮隐藏
if(WuFile.getStatus() === "complete" && that.options.previewInfo.toolBtnShowOnUpload){
panel.find('.rotateRight,.rotateLeft').hide();
}
panel.stop().animate({height: 30});
}).on("mouseleave.showTool", function (){
panel.stop().animate({height: 0});
});
panel.children('span').on("click", function (){
var $this = $(this);
if($this.hasClass('cancel')){//删除按钮
var id = $this.data("id");
// 上传成功(请求成功)
if(WuFile.getStatus() === "complete"){
if(that.options.onDelUploaded && $.isFunction(that.options.onDelUploaded)){
// 传递一个删除当前预览框的函数给使用者，让使用者在他想删除预览框时才删除预览框，而不是强制删除
that.options.onDelUploaded(id, function (){
if(that.options.previewInfo.toolBtnShowOnUpload){
that.uploader.removeFile(id, true);//从队列中删除图片
}
//移除当前文件在进度中的信息
that._uploadPercentage("delete", $this.data("id"));
});
return;
}
}else{
if(that.options.onDel && $.isFunction(that.options.onDel)){
var flag = that.options.onDel(id);
if(flag === false){return;}
}
}
that.uploader.removeFile(id);//删除图片
//移除当前文件在进度中的信息
that._uploadPercentage("delete", $this.data("id"));
//$("#" + id).remove();//移除预览框
}else if($this.hasClass('rotateRight') || $this.hasClass('rotateLeft')){//旋转按钮
if($this.hasClass('rotateRight')){
WuFile.rotation += 90;
if(WuFile.rotation > 360){
WuFile.rotation = 360;
}
}else if($this.hasClass('rotateLeft')){
WuFile.rotation -= 90;
if(WuFile.rotation < -270){
WuFile.rotation = -270;
}
}
rotation = WuFile.rotation;
if(that.supportTransition){
deg = 'rotate(' + rotation + 'deg)';
$imgWrap.css({
'-webkit-transform': deg,
'-mos-transform': deg,
'-o-transform': deg,
'transform': deg
});
}else{
//IE低版本浏览器旋转实现来自jquery animate的旋转
$imgWrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((rotation / 90) % 4 + 4) % 4) + ')');
}
}
});
}
if(this.options.previewInfo.previewWrap){
$(this.options.previewInfo.previewWrap).append(previewBox);
}
return previewBox;
}
/*渲染上传失败提示，并给按钮绑定点击事件*/
UploadPreview.prototype.renderUploadError = function (appendTo, WuFile){
if(!appendTo || appendTo.length == 0){return;}
if(!WuFile){return;}
var that = this,
previewInfo = that.options.previewInfo,
html = $(that.builder.buildUploadErrorMsg(previewInfo.errorMsg, previewInfo.delBtn, previewInfo.retryBtn)),
spanBtn = html.find("a");
if(html.length == 0){return;}
if(spanBtn.length > 0){
if(WuFile){
spanBtn.on("click", function (){