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列表行拖拽效果

时间:2015-12-23 19:18:28      阅读:164      评论:0      收藏:0      [点我收藏+]

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<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <script type="text/javascript">
        function getOffset(node){
            var x= 0,y=0;
            while(node!=null&&node!=document.body){
                y+=node.offsetTop;
                x+=node.offsetLeft;
                node=node.parentNode;
            }
            return {x:x,y:y};
        }
       window.onload=function(){
         var table=document.getElementById("filelistTab");
           var trs=table.getElementsByTagName("tr");
           var trfirstTop=getOffset(trs[1]).y;
           var trlastTop=getOffset(trs[trs.length-1]).y+trs[trs.length-1].offsetHeight;
           var _isMove=false;
           var obj={x:0,y:0};
           var targetTr=null;
           var moveDiv=document.createElement("div");
           moveDiv.style.position="absolute";
           moveDiv.style.zIndex=1000;
           moveDiv.style.backgroundColor="#FF0000";
           for(var i= 1,len=trs.length;i<len;i++){
               var tr=trs[i];
              // tr.onclick=(function(index){
               //    return function(e){}
              // })(i);
               tr.onmousedown=function(e){
                   e=e||window.event;
                   targetTr= e.target|| e.srcElement;
                   while(targetTr.nodeName!="TR"){
                       targetTr=targetTr.parentNode;
                   }
                   obj.x = e.clientX;
                   obj.y= e.clientY;
                   moveDiv.innerHTML="";
                   moveDiv.appendChild(targetTr.cloneNode(true));
                   var offset=getOffset(targetTr);
                   moveDiv.style.top=offset.y+"px";
                   moveDiv.style.left=offset.x+"px";
                   moveDiv.style.height=targetTr.offsetHeight+"px";
                   moveDiv.style.width=targetTr.offsetWidth+"px";
                   _isMove=true;
                   document.body.appendChild(moveDiv);
                   if(moveDiv.setCapture){
                       moveDiv.setCapture();
                       targetTr.style.opacity = 0.5;
                      // moveDiv.filters.alpha.opacity = 50;
                   }else{
                       window.captureEvents(Event.MOUSEMOVE);
                       moveDiv.style.opacity = 0.5;
                   }
                   e.preventDefault();
               }
               document.onmousemove=function(e){
                     if(!_isMove){
                         return;
                     }
                       e=e||window.event;
                   if(parseInt( moveDiv.style.top)<=parseInt(trfirstTop)){
                       moveDiv.style.top=trfirstTop+"px";
                   }
                   if(parseInt( moveDiv.style.top)>=parseInt(trlastTop)){
                       moveDiv.style.top=trlastTop+"px";
                   }
                      var mx = e.clientX-obj.x;
                      var my= e.clientY- obj.y;
                   moveDiv.style.top=parseInt( moveDiv.style.top)+my+"px";
                   obj.x= e.clientX;
                   obj.y= e.clientY;
               }
               document.onmouseup=function(e){
                   _isMove=false;
                   var ToNode=null;
                   var divTop=parseInt(moveDiv.style.top);
                   for(var i= 1,len=trs.length;i<len;i++){
                       var curtr=trs[i];
                       var top=getOffset(curtr).y;
                       var height=curtr.offsetHeight;

                       if(i==1){
                           if(divTop<=top){
                               ToNode=curtr;
                               table.getElementsByTagName("tbody")[0].insertBefore(targetTr,ToNode);
                               break;
                           }
                       }else if(i==len-1){
                           if(divTop>=top){
                               ToNode=curtr;
                               table.getElementsByTagName("tbody")[0].appendChild(targetTr);
                           }
                       }else{
                           var curtr2=trs[i+1];
                          var top2=getOffset(curtr2).y;
                           if(divTop==top){
                               table.getElementsByTagName("tbody")[0].insertBefore(targetTr,curtr);
                               break;

                           }else if(divTop>top&&divTop<=top2){
                               table.getElementsByTagName("tbody")[0].insertBefore(targetTr,curtr2);
                               break;
                           }
                       }

                   }
                   document.body.removeChild(moveDiv);
                   if(moveDiv.releaseCapture){
                       moveDiv.releaseCapture();
                      // moveDiv.filters.alpha.opacity = 100;
                       targetTr.style.opacity = 1;
                   }else{
                       window.releaseEvents(moveDiv.MOUSEMOVE);
                       targetTr.style.opacity = 1;
                   }
               }
           }
       };

        function tableSort(){
            var tb=document.getElementById("filelistTab");
            var rows=tb.getElementsByTagName("tr");
            for(var i=1;i<rows.length;i++){ //跳过表头的tr
                var objInput = rows[i].getElementsByTagName("td")[0].childNodes[0];
                alert(objInput.value);
                objInput.value = i;
            }
        }
    </script>
</head>
<body>


<input type="button" value="Save" onclick="tableSort();">
<table  id="filelistTab" cellspacing="0" cellpadding="2" border="1" align="center">
    <tr>
        <td class="gridtitle" style="WIDTH: 40px">列一</td>
        <td class="gridtitle" style="WIDTH: 100px">列二</td>
        <td class="gridtitle" style="WIDTH: 110px">列三</td>
    </tr>
    <tr id="1" title="拖动行可以进行排序" >
        <td class="gridtitle"><input class="text" id="group1" style="WIDTH: 30px" type="text" readonly value="1" /></td>
        <td class="gridtitle"> 11111111111111111111 </td>
        <td class="gridtitle"><input class="text" id="fn1" readOnly type="text" style="width:100px" value="11111111111111111111" /></td>
    </tr>
    <tr id="2" title="拖动行可以进行排序" >
        <td class="gridtitle"><input class="text" id="group2" style="WIDTH: 30px" type="text" readonly value="2" /></td>
        <td class="gridtitle"> 222222222222222222222 </td>
        <td class="gridtitle"><input class="text" id="fn2" readOnly type="text" style="width:100px" value="22222222222222222222222" /></td>
    </tr>
    <tr id="3" title="拖动行可以进行排序" >
        <td class="gridtitle"><input class="text" id="group3" style="WIDTH: 30px" type="text" readonly value="3" /></td>
        <td class="gridtitle"> 3333333333333333333333 </td>
        <td class="gridtitle"><input class="text" id="fn3" readOnly type="text" style="width:100px" value="333333333333333" /></td>
    </tr>
    <tr id="4" title="拖动行可以进行排序" >
        <td class="gridtitle"><input class="text" id="group4" style="WIDTH: 30px" type="text" readonly value="4" /></td>
        <td class="gridtitle"> 444444444444444444444 </td>
        <td class="gridtitle"><input class="text" id="fn4" readOnly type="text" style="width:100px" value="4444444444444444444444444444" /></td>
    </tr>
    <tr id="5" title="拖动行可以进行排序" >
        <td class="gridtitle"><input class="text" id="group5" style="WIDTH: 30px" type="text" readonly value="5" /></td>
        <td class="gridtitle"> 55555555555555555555555 </td>
        <td class="gridtitle"><input class="text" id="fn5" readOnly type="text" style="width:100px" value="555555555555555555555" /></td>
    </tr>
    <tr id="6" title="拖动行可以进行排序" >
        <td class="gridtitle"><input class="text" id="group6" style="WIDTH: 30px" type="text" readonly value="6" /></td>
        <td class="gridtitle"> 6666666666666666666666666 </td>
        <td class="gridtitle"><input class="text" id="fn6" readOnly type="text" style="width:100px" value="666666666666666666666" /></td>
    </tr>
</table>

</body>
</html>

 

列表行拖拽效果

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原文地址:http://www.cnblogs.com/wanglinglong/p/5070722.html

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