attach.js

1、激活企业硬件投资

}

function fetchOffset(obj) {
	var left_offset = obj.offsetLeft;
	var top_offset = obj.offsetTop;
	while((obj = obj.offsetParent) != null) {
		left_offset += obj.offsetLeft;
		top_offset += obj.offsetTop;
	}
	return { 'left' : left_offset, 'top' : top_offset };
}

function ebygum(eventobj) {
	if(!eventobj || is_ie) {
		window.event.cancelBubble = true;
		return window.event;
	} else {
		if(eventobj.target.type == 'submit') {
			eventobj.target.form.submit();
		}
		eventobj.stopPropagation();
		return eventobj;
	}
}

function doane(event) {
	e = event ? event : window.event;
	if(is_ie) {
		e.returnValue = false;
		e.cancelBubble = true;
	} else if(e) {
		e.stopPropagation();
		e.preventDefault();
	}
}

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;
}
function getEvent() //同时兼容ie和ff的写法
{
    if(document.all)  return window.event;
    func=getEvent.caller;
    while(func!=null){
        var arg0=func.arguments[0];
        if(arg0)
        {
          if((arg0.constructor==Event || arg0.constructor ==MouseEvent) || (typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation))
          {
          return arg0;
          }
        }
        func=func.caller;
    }
    return null;
}
function getEventSrc()
{
   var event=getEvent();
   return event.srcElement ? event.srcElement : event.target;
}
function getMousePos()
{
   var mouseX = 0;
   var mouseY = 0;
   var e = getEvent();//alert(e.clientX)
   var bb = (document.compatMode && document.compatMode!="BackCompat") ? document.documentElement : document.body;

   mouseX = e.clientX + bb.scrollLeft;
   mouseY = e.clientY + bb.scrollTop;

   return {left:mouseX,top:mouseY};
}

function show_attach_op(id, a)
{
   var pos = fetchOffset(a);
   var el = document.getElementById(id);
   el.style.display="block";
   el.style.width=a.offsetWidth;
   el.style.left=pos['left'];
   el.style.top=pos['top']+a.offsetHeight-3;
   el.style.filter = "progid:DXImageTransform.Microsoft.shadow(direction=135,color=#CCCCCC,strength=4)";
   
   var bb = (document.compatMode && document.compatMode!="BackCompat") ? document.documentElement : document.body;
   if(parseInt(el.style.top) + el.offsetHeight > bb.offsetHeight + bb.scrollTop)
      el.style.top = pos['top'] - el.offsetHeight+5;
}
function hide_attach_op(id)
{
   var el = document.getElementById(id);
   el.style.display="none";
}
function SaveFile(ATTACHMENT_ID,ATTACHMENT_NAME)
{
  URL="/module/save_file?ATTACHMENT_ID="+ATTACHMENT_ID+"&ATTACHMENT_NAME="+ATTACHMENT_NAME+"&A=1";
  loc_x=screen.availWidth/2-200;
  loc_y=screen.availHeight/2-90;
  window.open(URL,null,"height=180,width=400,status=1,toolbar=no,menubar=no,location=no,scrollbars=yes,top="+loc_y+",left="+loc_x+",resizable=yes");
}

function sel_attach(div_id,dir_field,name_field,disk_id,filter)
{
   if(!filter)
      filter="";
   var URL="/module/sel_file?EXT_FILTER=" + filter + "&MULTI_SELECT=1&DIV_ID=" + div_id + "&DIR_FIELD=" + dir_field + "&NAME_FIELD=" + name_field + "&TYPE_FIELD=" + disk_id;
   window.open(URL,null,"height=300,width=500,status=0,toolbar=no,menubar=no,location=no,scrollbars=yes,top=200,left=300,resizable=yes");
}

function upload_limit_check(file_name)
{
   if(upload_limit==0 || file_name=="")
      return true;
   
   file_name=file_name.substring(file_name.lastIndexOf("\\")+1).toLowerCase();
   var ext_name="";
   if(file_name.lastIndexOf(".")>=0)
      ext_name=file_name.substring(file_name.lastIndexOf(".")+1,file_name.length);
   if(ext_name=="" || ext_name==file_name)
      ext_name="*";
   
   var bFound=limit_type.indexOf(ext_name+",")==0 || limit_type.indexOf(","+ext_name+",")>0;
   if(upload_limit==1 && !bFound || upload_limit==2 && bFound)
      return true;
   
   if(ext_name=="*")
      alert("不允许上传无后缀名的文件");
   else
      alert("不允许上传后缀名为 "+ext_name+" 的文件");
   return false;
}

function GetParentEl(el, tagName)
{
   el=el.parentElement ? el.parentElement : el.parentNode;
   if(!el)
     return null;

   if(el.tagName.toLowerCase()==tagName)
      return el;
   else
      return GetParentEl(el, tagName);
}
function CreateFileEl(id)
{
   var attach=document.createElement("input");
   attach.type="file";
   attach.className="addfile";
   attach.name=id;
   attach.id=id;
   attach.size="1";
   attach.hideFocus="true";
   attach.onchange=AddFile;
   return attach;
}
function AddFile()
{
   var file=getEventSrc();
   var prefix=file.id.substring(0,file.id.lastIndexOf("_"));
   if(!prefix)
      prefix="ATTACHMENT";
   
   var attach_div = document.getElementById(prefix+"_div");
   var form_el = GetParentEl(file,"form");//alert(addFileLink.name)
   var addFileLink = GetParentEl(file,"a");
   if(!attach_div || !form_el || !addFileLink)
   {
      alert("参数无效");
      return;
   }
   
   if(!upload_limit_check(file.value))
   {
      var attach = CreateFileEl(file.id);
      addFileLink.removeChild(file);
      addFileLink.appendChild(attach);
      return;
   }
   
   var id=parseInt(file.id.substring(prefix.length+1));
   var el=form_el.children ? form_el.children : form_el.childNodes;
   for(var i=0; i<el.length;i++)
   {
      if(el[i].tagName && el[i].tagName.toLowerCase()=="input" && el[i].type.toLowerCase()=="file" && el[i].id!=file.id && el[i].value==file.value)
      {
         alert("该文件已经添加");
         addFileLink.removeChild(file);
         var attach = CreateFileEl(file.id);
         addFileLink.appendChild(attach);
         return;
      }
   }
   
   var attach_name = file.value.substring(file.value.lastIndexOf("\\")+1);
   attach_div.innerHTML+="<span id='"+prefix+"_span_"+id+"' title='"+file.value+"'><img src='/images/attach.png' align='absMiddle'>"+attach_name+"<img src='/images/remove.png' onclick='RemoveFile(this)' align='absMiddle' style='cursor:hand;'>;&nbsp;</span><br>";
   file.style.zIndex = "-1";
   form_el.appendChild(file);
   
   id++;
   var attach = CreateFileEl(prefix+'_'+id);
   addFileLink.appendChild(attach);
}

function RemoveFile(img)
{
   var span = GetParentEl(img,"span");
   var file = document.getElementById(span.id.replace("_span_","_"));
   if(span && span.parentElement)
      span.parentElement.removeChild(span);
   
   if(file && file.parentElement)
      file.parentElement.removeChild(file);
}
function ShowAddFile(postfix,show_sel_attach)
{
   if(isUndefined(postfix)) postfix="";
   document.write('<div id="ATTACHMENT'+postfix+'_div"></div><div id="SelFileDiv'+postfix+'"></div><a class="addfile" href="javascript:;">添加附件<input class="addfile" type="file" name="ATTACHMENT'+postfix+'_0" id="ATTACHMENT'+postfix+'_0" size="1" hideFocus="true" onchange="AddFile();" /></a>');
   if(show_sel_attach!='0')
      document.write('&nbsp;|&nbsp;<a href="#" onclick="sel_attach(\'SelFileDiv'+postfix+'\',\'ATTACH_DIR'+postfix+'\',\'ATTACH_NAME'+postfix+'\',\'DISK_ID'+postfix+'\');" class="selfile">从文件柜和网络硬盘选择附件</a><input type="hidden" value="" name="ATTACH_NAME'+postfix+'"><input type="hidden" value="" name="ATTACH_DIR'+postfix+'"><input type="hidden" value="" name="DISK_ID'+postfix+'">');
}