post.js

学生选课系统 赶快来下载啊啊好东西 呵呵啊啊 啊啊啊啊啊

var CODE_INDEX = 0;
function render_code(){
  var elements = document.getElementsByName("ubb_code");
  if (elements && elements[CODE_INDEX]){
   dp.SyntaxHighlighter.HighlightAll("ubb_code",true,false,false,true,false,CODE_INDEX);
   CODE_INDEX = CODE_INDEX+1;
  }
}


function imgzoom(o) {
  if(event.ctrlKey) {
    var zoom = parseInt(o.style.zoom, 10) || 100;
    zoom -= event.wheelDelta / 12;
    if(zoom > 0) {
      o.style.zoom = zoom + '%';
    }
    return false;
  } else {
    return true;
  }
}

  function imgresize(obj){
    if (obj){
      if(obj.width > 300){
        obj.width = 300;
      }
    }
  }
  function imgappresize (obj){
    if (obj){
      if(obj.width > 200){
        obj.width = 200;
      }
      if(obj.height > 50){
        obj.height = 50;
      }
    }
  }


//发帖时，选择主题操作
function addTopicType(topicType) {
  var title;
  var curTitle = $("ef_form").post_title.value;
  var topic_type = $("ef_form").topic_type; 
  for (var i =0; i < topic_type.length; i++ ){
    var index = curTitle.indexOf(topic_type[i].value);
    if (index == 0){
      curTitle = curTitle.substr(topic_type[i].value.length);
    }
  }
  title = topicType+curTitle;
  $("ef_form").post_title.value=title;
  $("ef_form").post_title.focus();
  return;
}

//清空帖子内容
function resetPostContent(){
 var content = $("ef_form").post_content;
 if (content) {
   content.value = "";
   content.focus();
 }
}

function checkContentLength(){
  var titleLength = $("ef_form").post_title.value.length;
  var contentLength = wysiwyg ? html2bbcode(getEditorContents()).length:$("ef_form").post_content.value.length;
  alert("标题长度："+titleLength+"个字符(系统限制 0 到 100 个字符，汉字占两位)\n内容长度："+contentLength+"个字符(系统限制 "+postminchars+" 到 "+postmaxchars+" 个字符，汉字占两位)");
}


var sEdit = "post_content";

var originImage=new Image();

//获得原图的象素宽度
function getImageWidth(oImage){
  if(originImage.src!=oImage.src)originImage.src=oImage.src;
  return originImage.width;
}
//获得原图的象素高度
function getImageHeight(oImage){
  if(originImage.src!=oImage.src)originImage.src=oImage.src;
  return originImage.height;
}

//帆布宽度和高度
var canvas_width = 140;
var canvas_height = 110;

//不失帧加载图片
function imgOnload(obj){
  var wh = getImageWh(obj.src,canvas_width,canvas_height);
  if(wh){
    obj.width=wh['w'];
    obj.height=wh['h'];
  }
}


function getImageWh(src,width,height){
  if($('img_hidden') && $('img_hidden').filters){

    $('img_hidden').filters.item("DXImageTransform.Microsoft.AlphaImageLoader").sizingMethod = 'image';
    try {
      $('img_hidden').filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = src;
    } catch (e) {
      return null;
    }

    var wh = {'w' : $('img_hidden').offsetWidth, 'h' : $('img_hidden').offsetHeight};
    $('img_hidden').style.width = '10px';
    $('img_hidden').style.height = '10px';
    $('img_hidden').filters.item("DXImageTransform.Microsoft.AlphaImageLoader").sizingMethod = 'scale';
    if(wh['w'] <= 1 || wh['h'] <= 1){
      return {'w' : width, 'h' : height};
    }
    if(wh['w'] >= width || wh['h'] >= height) {
      wh = getAttachImageWh(wh['w'], wh['h'],width,height);
    }
    return wh;
  }
  return null;
}

function getAttachImageWh(w, h, twidth, theight){
  twidth = !twidth ? thumbwidth : twidth;
  theight = !theight ? thumbheight : theight;
  var x_ratio = twidth / w;
  var y_ratio = theight / h;
  var wh = new Array();
  if((x_ratio * h) < theight) {
    wh['h'] = Math.ceil(x_ratio * h);
    wh['w'] = twidth;
  } else {
    wh['w'] = Math.ceil(y_ratio * w);
    wh['h'] = theight;
  }
  return wh;
}



//获得新的附件序号
function getAttachNo(){
  return attachStart ++;
}

//新增一个附件
function newUpload(checkNum){
  //检查上传组件的数量。
  if(checkNum && maxUpload){
	var obj = document.getElementsByName("attachId");
	//去除掉隐藏的对象
	var count = -1;
	for(var i = 0 ; i < obj.length; i ++){
		if(obj[i].value == "#id#"){
			count++;
		}
	}
    if( maxUpload <= count){
      alert("暂时不允许上传更多的附件！");
      return;
    }
  }

  //TODO 如果第一个用户还没有选择，则不增加
	insertUpload(getAttachNo());
}

function insertUpload(no,id){
  if($('attach').hasChildNodes()){
	$('attach').insertBefore(getUploadElement(no,id),$('attach').childNodes.item(0));
  } else {
	$('attach').appendChild(getUploadElement(no,id));
  }
}

/**
  * 获得上传组件
  */
function getUploadElement(no,id){
  var div = document.createElement("div");
  div.id="upload" + no;
  div.className="upload";
  var copyDiv = $('tplupload').innerHTML;
  var Reg = /#no#/g;
  var html = copyDiv.replace(Reg,no);
  if(id){
	div.id="upload" + id;
    Reg = /#id#/g;
    html = html.replace(Reg,id);
  }
  div.innerHTML = html;
//alert(html);
  return div;
}

//新增附件
var attachNew = new Array();
//删除附件
var attachDelete = new Array();

//浏览一个文件
function initUpload(obj,attachNo){
  if ( allAttachType && allAttachType.length >0){
     var fileType = getFileType(obj);
     var index = -1;
     for(i=0; i<allAttachType.length ; i++){
     //alert(allAttachType[i][0]+"-----"+fileType);
        if (allAttachType[i][0] == fileType){
          //alert(i);
          index = i;
          break;
        }
      }
      if (index == -1){
        alert("不允许上传此种类型的附件！");
        try{
          var copy =  obj.cloneNode(false);
          obj.replaceNode(copy);
        } catch(e){
        }
        return;
      }
      //如果是图片
      if (allAttachType[index][1] == "1"){
        if(browser.isIE){
          var wh = getImageWh($("attach"+attachNo).value,canvas_width,canvas_height);
          $("demopic"+attachNo).src = "ef/images/ubb/clear.gif";
          $("demopic"+attachNo).style.filter ='progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod="scale",src="file:///' + obj.value +'"';
          $("demopic"+attachNo).style.width=wh['w']+"px"
          $("demopic"+attachNo).style.height=wh['h']+"px";
        }else{
          $("demopic"+attachNo).src  = allAttachType[index][2];
        }
      }else {
        $("demopic"+attachNo).style.filter="";
        $("demopic"+attachNo).style.width="";
        $("demopic"+attachNo).style.height="";
        $("demopic"+attachNo).src  = allAttachType[index][2];
      }
      var fileTitle = obj.value.substr(obj.value.lastIndexOf('\\')+1);
      $("demopic"+attachNo).title = fileTitle;
      $("filePath" + attachNo).value = "###资源" + attachNo + "###";
      $("fileFullPath"+attachNo).value=obj.value;
      $("fileTitle"+attachNo).value=fileTitle;
      if (attachNew.indexOf(attachNo) < 0){
          attachNew.push(attachNo);
      }
      $('attach_new').value = attachNew;

  } else {
    alert("不允许上传此种类型的附件！");
    try{
      var copy =  obj.cloneNode(false);
      obj.replaceNode(copy);
    } catch(e){
    }
  }
}

//获得文件类型
function getFileType(obj){
  return obj.value.substr(obj.value.lastIndexOf('.')+1).toLowerCase();
}

//增加到文章中
function addArticle(attachNo){
  insertAttach(attachNo);
}

//判断是否插入
function checkInsertID(val,no){
    var value = val;
    var txt = getEditorContents();
    var  r =new RegExp("\\[upload\\]"+value+"\\[/upload\\]","ig");
    if(r.test(txt)){
    return false;
    }
	r = new RegExp("aid=([\"\']?)attach_"+no,"ig");
    if(r.test(txt)){
		return false;
	}

    return true;
}

function insertHTML(_sStr) {
  var oRng;
  var oEdit;
    oEdit = $(sEdit);
    oEdit.focus();
    if (browser.isIE) {
      oRng = oEdit.document.selection.createRange();
      oRng.text += _sStr;
    } else {
      oEdit.value = oEdit.value.substring(0, oEdit.selectionStart) + _sStr + oEdit.value.substring(oEdit.selectionEnd, oEdit.value.length);
    }
}

//删除
function clearSelect(no,id){
  //如果还没有添加返回
  if (!$('filePath'+no).value){
    alert("尚未添加附件");
    return;
  }
  //TODO 如果是新增则回复为默认属性
  
  if (confirm("确认删除附件？")){ 
    deleteUpload(no,id);
  }
}

function deleteUpload(attachNo,id){
	var uploadid = attachNo;
   //已上传资源
   if ("#id#" != id){
      attachDelete.push(id);
      $('attach_delete').value = attachDelete;
	  //删除ID组件
	  uploadid = id;
	  //初始化数组数据
	  if(!isUndefined(attachArray)){
		for(var i = 0; i < attachArray.length; i++) {
		  if(attachArray[i]['no'] == attachNo ){
			attachArray[i]['ext'] = "no";
			break;
		  }
		}
	  }
   } else {
      //如果已经加入到新增数组中，则删除。
      setAttachNew(attachNo);
   }

  $('attach').removeChild($("upload"+uploadid));
}

function setAttachNew(attachNo){
  //如果已经选择了文件，则
  if (attachNew.indexOf(attachNo) >= 0){
   var copy = new Array();
   for(var i = 0; i < attachNew.length  ; i++){
     if (attachNo != attachNew[i]){
       copy.push(attachNew[i]);
     }
   }
    attachNew = copy;
    $('attach_new').value = attachNew;
  }
}

function in_array(needle, haystack) {
  if(typeof needle == 'string' || typeof needle == 'number') {
    for(var i in haystack) {
      if(haystack[i] == needle) {
          return true;
      }
    }
  }
  return false;
}

var efallowpic =new Array('gif', 'jpg','jpeg', 'png', 'bmp');

//已有附件
function hadUpload(attachNo,attachId, title, filePath,fileTitle){
  insertUpload(attachNo,attachId);
  $("attach"+attachNo+"_title").value=title;
  $("demopic"+attachNo).src=filePath;
  $("demopic"+attachNo).title=fileTitle;
  var ext = fileTitle.substr(fileTitle.lastIndexOf('.')+1).toLowerCase();
  if(in_array(ext, efallowpic)){
  $("fileFullPath"+attachNo).value=filePath;
  } else {
  $("fileFullPath"+attachNo).value=fileTitle;
  }
  $("fileTitle"+attachNo).value=fileTitle;
//  alert(("fileFullPath"+attachNo).value);
  $("file"+attachNo).disabled="true";
  $("filePath" + attachNo).value = "###资源" + attachNo + "###";
  $("demopic"+attachNo).onload=function (e){var wh = getImageWh(this.src,canvas_width,canvas_height);if(wh){this.width=wh['w'];this.height=wh['h'];}};

}


//submit topic
function submitTopicCheck(vLevel){
  if (!checkTitleInfo()){
    return false;
  }
  if (!checkPostConent()){
   return false;
  }
  if(vLevel){
    if(!checkVisitLevel(vLevel)){
     return false;
    }
  }
  return true;
}


//submit topic
function submitPostCheck(){
  if (!checkTitleMax()){
    return false;
  }

  if (!checkPostConent()){
   return false;
  }
  return true;
}

//post submit;
function postSubmit(button){
  if (button){
    button.disabled="true";
  }
  $("ef_form").target ="";
  $("ef_form").enctype="multipart/form-data";
  $("ef_form")._fn.value=$("ef_form")._fn_old.value;
  $("ef_form").submit();

}

function forumPreview(){
  $("ef_form").target ="_postpreview";
  $("ef_form").enctype="";
  $("ef_form")._fn.value="Preview";
  $("ef_form").submit();
}

//check post title
function checkTitleInfo(){
  if ($('post_title')  ){
    //trim title
    $('post_title').value = Trim($('post_title').value);
    if ($('post_title').value == "" ){
      alert("标题必须填写！");
      return false;
    }
    if(!checkTitleMax()){
      return false;
    }
  }
  return true;
}

//check titleMax