HTML拖放表格

 

<style>
*{font-size:12px}
.dragTable{
font-size:12px;
margin-bottom: 5px;
}
td{vertical-align:top;}
.dragTR{
cursor:move;
color:#7787cc;
background-color:#e5eef9;
height:20px;
padding-left:5px;
font-weight:bold;
}
#parentTable{
border-collapse:collapse;
letter-spacing:25px;
}
</style>
<script defer>
var Drag={dragged:false,
ao:null,
tdiv:null,
dragStart:function(){
Drag.ao=event.srcElement;
if((Drag.ao.tagName=="TD")||(Drag.ao.tagName=="TR")){
Drag.ao=Drag.ao.offsetParent;
Drag.ao.style.zIndex=100;
}else
return;
Drag.dragged=true;
Drag.tdiv=document.createElement("div");
Drag.tdiv.innerHTML=Drag.ao.outerHTML;
Drag.ao.style.border="1px dashed red";
Drag.tdiv.style.display="block";
Drag.tdiv.style.position="absolute";
Drag.tdiv.style.filter="alpha(opacity=70)";
Drag.tdiv.style.cursor="move";
Drag.tdiv.style.border="1px solid #000000";
Drag.tdiv.style.width=Drag.ao.offsetWidth;
Drag.tdiv.style.height=Drag.ao.offsetHeight;
Drag.tdiv.style.top=Drag.getInfo(Drag.ao).top;
Drag.tdiv.style.left=Drag.getInfo(Drag.ao).left;
document.body.appendChild(Drag.tdiv);
Drag.lastX=event.clientX;
Drag.lastY=event.clientY;
Drag.lastLeft=Drag.tdiv.style.left;
Drag.lastTop=Drag.tdiv.style.top;
},

draging:function(){//重要:判断MOUSE的位置
if(!Drag.dragged||Drag.ao==null)return;
var tX=event.clientX;
var tY=event.clientY;
Drag.tdiv.style.left=parseInt(Drag.lastLeft)+tX-Drag.lastX;
Drag.tdiv.style.top=parseInt(Drag.lastTop)+tY-Drag.lastY;
for(var i=0;i<parentTable.cells.length;i++){
var parentCell=Drag.getInfo(parentTable.cells[i]);
if(tX>=parentCell.left && tX<=parentCell.right && tY>=parentCell.top && tY<=parentCell.bottom){
   var subTables=parentTable.cells[i].getElementsByTagName("table");
   if(subTables.length==0){
    if(tX>=parentCell.left && tX<=parentCell.right && tY>=parentCell.top && tY<=parentCell.bottom){
     parentTable.cells[i].appendChild(Drag.ao);
    }
    break;
   }
   for(var j=0;j<subTables.length;j++){
    var subTable=Drag.getInfo(subTables[j]);
    if(tX>=subTable.left && tX<=subTable.right && tY>=subTable.top && tY<=subTable.bottom){
     parentTable.cells[i].insertBefore(Drag.ao,subTables[j]);
     break;
    }else{
     parentTable.cells[i].appendChild(Drag.ao);
    } 
   }
}
}
}
,
dragEnd:function(){
if(!Drag.dragged)return;
Drag.dragged=false;
Drag.mm=Drag.repos(150,15);
Drag.ao.style.borderWidth="0px";
Drag.ao.style.borderTop="1px solid #3366cc";
Drag.tdiv.style.borderWidth="0px";
Drag.ao.style.zIndex=1;
},
getInfo:function(o){//取得坐标
var to=new Object();
to.left=to.right=to.top=to.bottom=0;
var twidth=o.offsetWidth;
var theight=o.offsetHeight;
while(o!=document.body){
to.left+=o.offsetLeft;
to.top+=o.offsetTop;
o=o.offsetParent;
}
to.right=to.left+twidth;
to.bottom=to.top+theight;
return to;
},
repos:function(aa,ab){
var f=Drag.tdiv.filters.alpha.opacity;
var tl=parseInt(Drag.getInfo(Drag.tdiv).left);
var tt=parseInt(Drag.getInfo(Drag.tdiv).top);
var kl=(tl-Drag.getInfo(Drag.ao).left)/ab;
var kt=(tt-Drag.getInfo(Drag.ao).top)/ab;
var kf=f/ab;
return setInterval(function(){if(ab<1){
       clearInterval(Drag.mm);
       Drag.tdiv.removeNode(true);
       Drag.ao=null;
       return;
      }
     ab--;
     tl-=kl;
     tt-=kt;
     f-=kf;
     Drag.tdiv.style.left=parseInt(tl)+"px";
     Drag.tdiv.style.top=parseInt(tt)+"px";
     Drag.tdiv.filters.alpha.opacity=f;
    }
,aa/ab)
},
inint:function(){//初始化
for(var i=0;i<parentTable.cells.length;i++){
var subTables=parentTable.cells[i].getElementsByTagName("table");
for(var j=0;j<subTables.length;j++){
   if(subTables[j].className!="dragTable")break;
   subTables[j].rows[0].className="dragTR";
   subTables[j].rows[0].attachEvent("onmousedown",Drag.dragStart);
}
}
document.onmousemove=Drag.draging;
document.onmouseup=Drag.dragEnd;
}
//end of Object Drag
}
Drag.inint();

function _show(str){
var w=window.open('','');
var d=w.document;
d.open();
str=str.replace(/=(?!")(.*?)(?!")( |>)/g,"="$1"$2");
str=str.replace(/(<)(.*?)(>)/g,"<span style='color:red;'><$2></span><br />");
str=str.replace(/ /g,"<br /> ");
d.write(str);
}
</script>

<table width="30%" height=200 border="0" cellpadding="0" cellspacing="0" id="parentTable">
  <tr >
    <td valgin="top">

        <table width="100%" border=0 cellspacing="0" class="dragTable">
           <tr>
             <td>表格1</td>
           </tr>
        </table>

        <table width="100%" border=0 cellspacing="0" class="dragTable">
           <tr>
             <td>表格2</td>
           </tr>
        </table>

   <table width="100%" border=0 cellspacing="0" class="dragTable">
     <tr>
       <td>表格3</td>
     </tr>
     <tr>
       <td>
       <table style="width: 100%">
        <tr>
            <td>a</td>
            <td>b</td>
            <td>c</td>
        </tr>
        <tr>
            <td>d</td>
            <td>e</td>
            <td>f</td>
        </tr>
        </table>
       </td>
     </tr>
     </table></td>
</tr>
</table>