var upload;
var fileIdArray = "";
var update_flag = "0";//附件操作权限标示，0：编辑 1：查询
//设置默认的上传文件格式
var filetypes="*.mp4;*.wmv;*.zip;*.rar;*.jpg;*.jpeg;*.gif;*.png;*.txt;*.doc;*.docx;*.ppt;*.pptx;*.xls;*.xlsx;*.pdf";
//设置默认的文件大小
var file_size_limit="10240000";
//设置默认文件数量
var file_upload_limit="10";
//设置默认上传文件队列数
var file_queue_limit="10";
function fileUpload() {
			upload = new SWFUpload(
			{
				// 提交路径
				upload_url : prjContextPath+ "/fileUploadAction!fileUpload.action",
				file_post_name : "file",
				// 向后台传递额外的参数
				// post_params: {"id":"11111"},
				// 下面自己按照字面意思理解
				file_size_limit : file_size_limit, // 100MB 文件最大上限
				file_types : filetypes,
				file_types_description : "请选取需要上传的文件，格式如下：",
				file_upload_limit : file_upload_limit,// 上传最大文件数
				file_queue_limit : file_queue_limit,// 最大队列数
				// 事件处理
				file_dialog_start_handler : fileDialogStart,
				file_queued_handler : fileQueued,
				file_queue_error_handler : fileQueueError,
				file_dialog_complete_handler : fileDialogComplete,
				upload_start_handler : uploadStart,
				upload_progress_handler : uploadProgress,
				upload_error_handler : uploadError,

				// 上传成功后执行方法：fileObj可获取file.id、file.name、file.size等；server_data为后台传递参数。
				upload_success_handler : function myUploadSuccess(fileObj,
						server_data) {
					fileIdArray+=(server_data+",");
					try {
						var progress = new FileProgress(fileObj,
								this.customSettings.progressTarget);
						progress.setComplete();
						var fileSize = fileObj.size;
						var i = 0;
						while (fileSize > 1024 && i < 2) {
							fileSize = fileSize / 1024;
							i++;
						}

						var sizeDW;
						if (i == 0)
							sizeDW = "B";
						else if (i == 1)
							sizeDW = "K";
						else if (i == 2)
							sizeDW = "M";

						progress.setStatus(toDecimal2(fileSize) + sizeDW+ " 上传完成");
						progress.toggleCancel(false);
						var filelist = document.getElementById("progressContainer"+ fileObj.id);
						filelist.style.paddingLeft = "50px";
						filelist.style.background = "#F0F5FF url('"+ prjContextPath + "/swfUpload/file-icon/"+ fileObj.type.replace('.', '')+ ".png') no-repeat 5px 5px";
						// 删除附件按钮
						var deleteObject = document.createElement("a");
						deleteObject.className = "myProgressBt";
						deleteObject.href = "javascript:void(0);";
						deleteObject.appendChild(document.createTextNode("删除"));
						deleteObject.onclick = function() {
							//删除方法，server_data为后台返回的文件id或业务id
							this.parentNode.parentNode.style.display = 'none';
							var idObj = document.getElementById("arrId"+ fileObj.id);
							idObj.parentNode.removeChild(idObj);
							delFile(server_data);
						}
						filelist.appendChild(deleteObject);

						// action 返回的附件ID
						var idObj = document.createElement("input");
						idObj.setAttribute("type", "hidden");
						idObj.setAttribute("name", "arrId");
						idObj.setAttribute("value", server_data);
						idObj.setAttribute("id", "arrId" + fileObj.id);
						filelist.appendChild(idObj);
						var clearObj = document.createElement("div");
						clearObj.className = "clear";
						filelist.appendChild(clearObj);
					} catch (ex) {
						this.debug(ex);
					}
				},
				
				upload_complete_handler : uploadComplete,
			
				// 按钮的处理
					button_image_url : prjContextPath+ "/swfUpload/images/XPButtonUploadText_61x22.png",
					button_placeholder_id : "spanButtonPlaceholder1",
					button_width : 100,
					button_height : 26,

					// Flash Settings
					flash_url : prjContextPath + "/swfUpload/swfupload.swf",
					custom_settings : {
						progressTarget : "fsUploadProgress1",
						cancelButtonId : "btnCancel1"
					},
				// Debug Settings
				debug : false
			});
			if('1'==update_flag)
				$("#div_del").remove() ;
}
/*文件删除*/
function delFile(server_data) {
	if (confirm("真的要删除此附件吗？删除后此附件将被删除并且无法恢复！")){
		$("#fileView"+server_data).remove();
		$.post(prjContextPath + "/fileUploadAction!delteFolder.action", {
			fileIdArray : server_data
		});
	}
}

/*文件显示回调函数开始*/
var fileList=[];
//备课及听评课需要，存储附件的主键ID
var fileidLst=[];
function callBackFunQueryFile(json){
	if(json!=null && json.data!=null){
		 for (var i = 0; i < json.data.length; i++) {
			
				var pData=json.data[i];
				fileList.push(pData.fileid);
				//获取文件id
				fileIdArray+= pData.fileid+',';
				//获取json返回的路径和文件名，下载使用,此处下载需修改tomcat编码为utf-8，在server.xml中修改URIEncoding="utf-8"
				var f_path=pData.filepath+"/"+pData.fileLSMC;
				//文件下载目录
				var downpath=filepath+f_path;
				//文件回显
				var queryFile = '<div class="progressWrapper" id="fileView'+pData.fileid+'" style="filter: progid:DXImageTransform.Microsoft.Alpha(opacity=100);"><div class="progressContainer blue" id='+pData.fileid+' FP_TIMER="null">';
					queryFile+= '<div class="progressName" id='+pData.fileid+'>'+pData.filename+'&nbsp;&nbsp;&nbsp;';
					if("0"==update_flag)
						queryFile += "<a href='#' onclick = 'delFile("+pData.fileid+")'>删除</a>&nbsp;<span>|</span>&nbsp;";
					queryFile+= '<a href="'+downpath+'" target="_blank">下载</a></div></div></div>';
				$("#fsUploadProgress1").append(queryFile);
				//显示文件类型
				var fileView = document.getElementById('fileView'+pData.fileid);
		       	fileView.style.paddingLeft="50px";
		       	fileView.style.background="#F0F5FF url('"+prjContextPath+"/swfUpload/file-icon/"+pData.fileType.replace('.','')+".png') no-repeat 10px 10px";
		 }
	}
}
/*文件显示回调函数开始*/
function callBackFunQueryFile_sel(json){
	$("#mytr").hide();
	if(json!=null && json.data!=null){
		 for (var i = 0; i < json.data.length; i++) {
			
				var pData=json.data[i];
				//获取文件id
				fileIdArray+= pData.fileid+',';
				//获取json返回的路径和文件名，下载使用,此处下载需修改tomcat编码为utf-8，在server.xml中修改URIEncoding="utf-8"
				var f_path=pData.filepath+"/"+pData.fileLSMC;
				//文件下载目录
				var downpath=filepath+f_path;
				//文件回显
			
					 
			
				var queryFile = '<div class="progressWrapper" id="fileView'+pData.fileid+'" style="filter: progid:DXImageTransform.Microsoft.Alpha(opacity=100);"><div class="progressContainer blue" id='+pData.fileid+' FP_TIMER="null">';
					queryFile+= '<div class="progressName" id='+pData.fileid+'>'+pData.filename+'&nbsp;&nbsp;&nbsp;';
					if("0"==update_flag)
						queryFile += "&nbsp;";
					queryFile+= '<a href="'+downpath+'" target="_blank">下载</a></div></div></div>';
				$("#fsUploadProgress1").append(queryFile);
				//显示文件类型
				var fileView = document.getElementById('fileView'+pData.fileid);
		       	fileView.style.paddingLeft="50px";
		       	fileView.style.background="#F0F5FF url('"+prjContextPath+"/swfUpload/file-icon/"+pData.fileType.replace('.','')+".png') no-repeat 10px 10px";
		 }
	}
}

/*文件显示回调函数结束*/





// 制保留2位小数，如：2，会在2后面补上00.即2.00
function toDecimal2(x) {
	var f = parseFloat(x);
	if (isNaN(f)) {
		return false;
	}
	var f = Math.round(x * 100) / 100;
	var s = f.toString();
	var rs = s.indexOf('.');
	if (rs < 0) {
		rs = s.length;
		s += '.';
	}
	while (s.length <= rs + 2) {
		s += '0';
	}
	return s;
}