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/*
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* jQuery文件上传插件,封装UI,上传处理操作采用Baidu WebUploader;
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*/
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(function( $ ) {
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$.fn.extend({
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/*
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* 上传方法 opt为参数配置;
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* serverCallBack回调函数 每个文件上传至服务端后,服务端返回参数,无论成功失败都会调用 参数为服务器返回信息;
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*/
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diyUpload:function( opt, serverCallBack ) {
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if ( typeof opt != "object" ) {
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alert('参数错误!');
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return;
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}
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var $fileInput = $(this);
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var $fileInputId = $fileInput.attr('id');
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//组装参数;
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if( opt.url ) {
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opt.server = opt.url;
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delete opt.url;
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}
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if( opt.success ) {
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var successCallBack = opt.success;
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delete opt.success;
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}
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if( opt.error ) {
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var errorCallBack = opt.error;
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delete opt.error;
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}
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//迭代出默认配置
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$.each( getOption( '#'+$fileInputId ),function( key, value ){
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opt[ key ] = opt[ key ] || value;
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});
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if ( opt.buttonText ) {
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opt['pick']['label'] = opt.buttonText;
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delete opt.buttonText;
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}
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var webUploader = getUploader( opt );
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if ( !WebUploader.Uploader.support() ) {
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alert( ' 上传组件不支持您的浏览器!');
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return false;
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}
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//绑定文件加入队列事件;
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webUploader.on('fileQueued', function( file ) {
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createBox( $fileInput, file ,webUploader);
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});
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//进度条事件
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webUploader.on('uploadProgress',function( file, percentage ){
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var $fileBox = $('#fileBox_'+file.id);
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var $diyBar = $fileBox.find('.diyBar');
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$diyBar.show();
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percentage = percentage*100;
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showDiyProgress( percentage.toFixed(2), $diyBar);
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});
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//全部上传结束后触发;
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webUploader.on('uploadFinished', function(){
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$fileInput.next('.parentFileBox').children('.diyButton').remove();
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});
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//绑定发送至服务端返回后触发事件;
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webUploader.on('uploadAccept', function( object ,data ){
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if ( serverCallBack ) serverCallBack( data );
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});
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//上传成功后触发事件;
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webUploader.on('uploadSuccess',function( file, response ){
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var $fileBox = $('#fileBox_'+file.id);
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var $diyBar = $fileBox.find('.diyBar');
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$fileBox.removeClass('diyUploadHover');
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$diyBar.fadeOut( 1000 ,function(){
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$fileBox.children('.diySuccess').show();
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});
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if ( successCallBack ) {
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successCallBack( response );
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}
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});
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//上传失败后触发事件;
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webUploader.on('uploadError',function( file, reason ){
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var $fileBox = $('#fileBox_'+file.id);
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var $diyBar = $fileBox.find('.diyBar');
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showDiyProgress( 0, $diyBar , '上传失败!' );
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var err = '上传失败! 文件:'+file.name+' 错误码:'+reason;
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if ( errorCallBack ) {
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errorCallBack( err );
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}
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});
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//选择文件错误触发事件;
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webUploader.on('error', function( code ) {
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var text = '';
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switch( code ) {
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case 'F_DUPLICATE' : text = '该文件已经被选择了!' ;
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break;
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case 'Q_EXCEED_NUM_LIMIT' : text = '上传文件数量超过限制!' ;
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break;
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case 'F_EXCEED_SIZE' : text = '文件大小超过限制!';
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break;
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case 'Q_EXCEED_SIZE_LIMIT' : text = '所有文件总大小超过限制!';
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break;
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case 'Q_TYPE_DENIED' : text = '文件类型不正确或者是空文件!';
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break;
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default : text = '未知错误!';
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break;
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}
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alert( text );
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});
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return webUploader;
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}
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});
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//Web Uploader默认配置;
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function getOption(objId) {
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/*
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* 配置文件同webUploader一致,这里只给出默认配置.
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* 具体参照:http://fex.baidu.com/webuploader/doc/index.html
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*/
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return {
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//按钮容器;
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pick:{
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id:objId,
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label:""
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},
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//类型限制;
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accept:{
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title:"Images",
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extensions:"gif,jpg,jpeg,bmp,png",
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mimeTypes:"image/*"
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},
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//配置生成缩略图的选项
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thumb:{
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width:1,
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height:1,
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// 图片质量,只有type为`image/jpeg`的时候才有效。
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quality:100,
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// 是否允许放大,如果想要生成小图的时候不失真,此选项应该设置为false.
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allowMagnify:false,
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// 是否允许裁剪。
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crop:false,
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// 为空的话则保留原有图片格式。
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// 否则强制转换成指定的类型。
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type:"image/jpeg"
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},
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//文件上传方式
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method:"POST",
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//服务器地址;
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server:"",
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//是否已二进制的流的方式发送文件,这样整个上传内容php://input都为文件内容
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sendAsBinary:false,
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// 开起分片上传。 thinkphp的上传类测试分片无效,图片丢失;
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chunked:true,
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// 分片大小
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chunkSize:512 * 1024,
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//最大上传的文件数量, 总文件大小,单个文件大小(单位字节);
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fileNumLimit:50,
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fileSizeLimit:500000 * 1024,
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fileSingleSizeLimit:50000 * 1024,
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};
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}
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//实例化Web Uploader
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function getUploader( opt ) {
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return new WebUploader.Uploader( opt );
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}
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//操作进度条;
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function showDiyProgress( progress, $diyBar, text ) {
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if ( progress >= 100 ) {
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progress = progress + '%';
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text = text || '上传完成';
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} else {
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progress = progress + '%';
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text = text || progress;
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}
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var $diyProgress = $diyBar.find('.diyProgress');
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$diyProgress.width( progress ).text( text );
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}
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//取消事件;
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function removeLi ( $li ,file_id ,webUploader) {
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webUploader.removeFile( file_id );
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$li.remove();
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}
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//左移事件;
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function leftLi ($leftli, $li) {
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$li.insertBefore($leftli);
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}
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//右移事件;
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function rightLi ($rightli, $li) {
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$li.insertAfter($rightli);
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}
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//创建文件操作div;
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function createBox( $fileInput, file, webUploader ) {
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var file_id = file.id;
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var $parentFileBox = $fileInput.parents(".upload-ul");
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var file_len=$parentFileBox.children(".diyUploadHover").length;
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//添加子容器;
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var li = '<li id="fileBox_'+file_id+'" class="diyUploadHover competition_img"> \
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<div class="viewThumb">\
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<input type="hidden">\
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<div class="diyBar"> \
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<div class="diyProgress">0%</div> \
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</div> \
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<p class="diyControl"><span class="diyCancel right"><i></i></span></p>\
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</div> \
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</li>';
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// <span class="diyLeft"><i></i></span>
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// <span class="diyRight"><i></i></span>
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$(".upload-pick").before( li );
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var $fileBox = $parentFileBox.find('#fileBox_'+file_id);
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//绑定取消事件;
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var $diyCancel = $fileBox.find('.diyCancel').one('click',function(){
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removeLi( $(this).parents('.diyUploadHover'), file_id, webUploader );
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});
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//绑定左移事件;
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$fileBox.find('.diyLeft').one('click',function(){
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leftLi($(this).parents('.diyUploadHover').prev(), $(this).parents('.diyUploadHover'));
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});
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//绑定右移事件;
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$fileBox.find('.diyRight').one('click',function(){
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rightLi($(this).parents('.diyUploadHover').next(), $(this).parents('.diyUploadHover') );
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});
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if ( file.type.split("/")[0] != 'image' ) {
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var liClassName = getFileTypeClassName( file.name.split(".").pop() );
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$fileBox.addClass(liClassName);
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return;
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}
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//生成预览缩略图;
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//base64 =dataSrc
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webUploader.makeThumb( file, function( error, dataSrc ) {
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if ( !error ) {
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console.log(dataSrc);
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console.log(file);
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$fileBox.find('.viewThumb').append('<img src="'+dataSrc+'" >');
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$fileBox.find('.viewThumb').append('<input type="hidden" name="file[]" value="'+dataSrc+'">');
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}
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});
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}
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//获取文件类型;
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function getFileTypeClassName ( type ) {
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var fileType = {};
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var suffix = '_diy_bg';
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fileType['pdf'] = 'pdf';
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fileType['ppt'] = 'ppt';
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fileType['doc'] = 'doc';
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fileType['docx'] = 'doc';
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fileType['jpg'] = 'jpg';
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fileType['zip'] = 'zip';
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fileType['rar'] = 'rar';
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fileType['xls'] = 'xls';
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fileType['xlsx'] = 'xls';
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fileType['txt'] = 'txt';
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fileType = fileType[type] || 'ppt';
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return fileType+suffix;
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}
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})( jQuery );
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