Js实现无刷新添加新层，拖动DIV层可互换位置

痛定思痛。 2022-08-07 05:50 179阅读 0赞

原文：[http://www.csrcode.cn/html/txdm/tcys/1943.htm][http_www.csrcode.cn_html_txdm_tcys_1943.htm]

<html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>Js实现无刷新添加新层，拖动DIV层可互换位置丨芯晴网页特效丨CsrCode.Cn</title>
    <style>
    body {margin:0px;padding:0px;font-size:12px;text-align:center;}
    body > div {text-align:center; margin-right:auto; margin-left:auto;} 
    .content{width:900px;}
    .content .left{
        float:left;
        width:20%;
        border:1px solid #0066CC;
        margin:3px;
    }
    .content .center{float:left;border:1px solid #FF0000;margin:3px;width:57%}
    .content .right{float:right;width:20%;border:1px solid #FF00FF;margin:3px}
    .mo{height:auto;border:1px solid #CCC;margin:3px;background:#FFF}
    .mo h1{background:#ECF9FF;height:18px;padding:3px;cursor:move}
    .closediv{cursor:default;}
    .minusspan{cursor:default;}
    .mo .nr{height:80px;border:1px solid #F3F3F3;margin:2px}
    h1{margin:0px;padding:0px;text-align:left;font-size:12px}
    .dragging {
        FILTER: progid:DXImageTransform.Microsoft.Alpha(opacity=60); opacity: 0.6; moz-opacity: 0.6
    }
    </style>
    <script language="javascript">
    var dragobj={}
    window.οnerrοr=function(){return false}
    var domid=12
    function on_ini(){
        String.prototype.inc=function(s){return this.indexOf(s)>-1?true:false}
        var agent=navigator.userAgent
        window.isOpr=agent.inc("Opera")
        window.isIE=agent.inc("IE") && !isOpr
        window.isMoz=agent.inc("Mozilla") && !isOpr && !isIE
        if(isMoz){
            Event.prototype.__defineGetter__("x",function(){return this.clientX+2})
            Event.prototype.__defineGetter__("y",function(){return this.clientY+2})
        }
        basic_ini()
    }
    function basic_ini(){
        window.$=function(obj){return typeof(obj)=="string"?document.getElementById(obj):obj}
        window.oDel=function(obj){if($(obj)!=null){$(obj).parentNode.removeChild($(obj))}}
    }
    window.oDel=function(obj){if($(obj)!=null){$(obj).parentNode.removeChild($(obj))}}
    window.οnlοad=function(){
        on_ini()
        var o=document.getElementsByTagName("h1")
        for(var i=0;i<o.length;i++){
            o[i].οnmοusedοwn=addevent;
            //添加折叠和关闭按钮
            var tt = document.createElement("div");
            tt.style.cssText = "float:left";
            
            var span = document.createElement("span");
            span.innerHTML = "--"+o[i].innerHTML;
            span.style.cssText = "cursor:default;";
            span.onmousedown = minusDiv;
            tt.appendChild(span);
            
            var close = document.createElement("div");
            close.innerHTML = "X";
            close.style.cssText = "cursor:default;float:right";
            close.onmousedown = closeDiv;
            o[i].innerHTML = "";
            o[i].appendChild(tt);
            o[i].appendChild(close);
        }
    }
    //折叠或者显示层
    function minusDiv(e)
    {
        e=e||event
        var nr = this.parentNode.parentNode.nextSibling;    //取得内容层
        nr.style.display = nr.style.display==""?"none":"";
    }
    //移出层
    function closeDiv(e)
    {
        e=e||event
        var mdiv = this.parentNode.parentNode;    //取得目标层
        oDel(mdiv);
    }
    function addevent(e){
        if(dragobj.o!=null)
            return false
        e=e||event
        dragobj.o=this.parentNode
        dragobj.xy=getxy(dragobj.o)
        dragobj.xx=new Array((e.x-dragobj.xy[1]),(e.y-dragobj.xy[0]))
        //dragobj.o.className = 'dragging';
        dragobj.o.style.width=dragobj.xy[2]+"px"
        dragobj.o.style.height=dragobj.xy[3]+"px"
        dragobj.o.style.left=(e.x-dragobj.xx[0])+"px"
        dragobj.o.style.top=(e.y-dragobj.xx[1])+"px"
        dragobj.o.style.position="absolute"
        dragobj.o.style.filter='alpha(opacity=60)';        //添加拖动透明效果
        var om=document.createElement("div")
        dragobj.otemp=om
        om.style.width=dragobj.xy[2]+"px"
        om.style.height=dragobj.xy[3]+"px"
        om.style.border = "1px dashed red";    //ikaiser添加，实现虚线框
        dragobj.o.parentNode.insertBefore(om,dragobj.o)
        return false
    }
    document.onselectstart=function(){return false}
    window.οnfοcus=function(){document.onmouseup()}
    window.οnblur=function(){document.onmouseup()}
    document.οnmοuseup=function(){
        if(dragobj.o!=null){
            dragobj.o.style.width="auto"
            dragobj.o.style.height="auto"
            dragobj.otemp.parentNode.insertBefore(dragobj.o,dragobj.otemp)
            dragobj.o.style.position=""
            oDel(dragobj.otemp)
            dragobj={}
        }
    }
    document.οnmοusemοve=function(e){
        e=e||event
        if(dragobj.o!=null){
            dragobj.o.style.left=(e.x-dragobj.xx[0])+"px"
            dragobj.o.style.top=(e.y-dragobj.xx[1])+"px"
            createtmpl(e, dragobj.o)    //传递当前拖动对象
        }
    }
    function getxy(e){
        var a=new Array()
        var t=e.offsetTop;
        var l=e.offsetLeft;
        var w=e.offsetWidth;
        var h=e.offsetHeight;
        while(e=e.offsetParent){
            t+=e.offsetTop;
            l+=e.offsetLeft;
        }
        a[0]=t;a[1]=l;a[2]=w;a[3]=h
      return a;
    }
    function inner(o,e){
        var a=getxy(o)
        if(e.x>a[1] && e.x<(a[1]+a[2]) && e.y>a[0] && e.y<(a[0]+a[3])){
            if(e.y<(a[0]+a[3]/2))
                return 1;
            else
                return 2;
        }else
            return 0;
    }
    //将当前拖动层在拖动时可变化大小，预览效果
    function createtmpl(e, elm){
        for(var i=0;i<domid;i++){
            if(document.getElementById("m"+i) == null)    //已经移出的层不再遍历
                continue;
            if($("m"+i)==dragobj.o)
                continue
            var b=inner($("m"+i),e)
            if(b==0)
                continue
            dragobj.otemp.style.width=$("m"+i).offsetWidth
            elm.style.width = $("m"+i).offsetWidth;
            //1为下移，2为上移
            if(b==1){
                $("m"+i).parentNode.insertBefore(dragobj.otemp,$("m"+i))
            }else{
                if($("m"+i).nextSibling==null){
                    $("m"+i).parentNode.appendChild(dragobj.otemp)
                }else{
                    $("m"+i).parentNode.insertBefore(dragobj.otemp,$("m"+i).nextSibling)
                }
            }
            return
        }
        for(var j=0;j<3;j++){
            if($("dom"+j).innerHTML.inc("div")||$("dom"+j).innerHTML.inc("DIV"))
                continue
            var op=getxy($("dom"+j))
            if(e.x>(op[1]+10) && e.x<(op[1]+op[2]-10)){
                $("dom"+j).appendChild(dragobj.otemp)
                dragobj.otemp.style.width=(op[2]-10)+"px"
            }
        }
    }
    function add_div()
    {
        var o=document.createElement("div")
        o.className="mo"
        o.id="m"+domid
        $('dom0').appendChild(o)
        o.innerHTML="<h1>dom"+domid+"</h1><div class=nr></div>"
        o.getElementsByTagName("h1")[0].οnmοusedοwn=addevent
        domid++
    }
    </script>
    </head>
    <body>
    <INPUT TYPE="button" value="添加一个新的DIV层" οnclick="add_div();">
    <div class=content>
        <div class=left id=dom0>
            <div class=mo id=m0>
                <h1>dom0</h1>
                <div class="nr"></div>
            </div>
            <div class=mo id=m1>
                <h1>dom1</h1><div class="nr"></div>
            </div>
            <div class=mo id=m2><h1>dom2</h1><div class="nr"></div></div>
        </div>
        <div class=center id=dom1>
            <div class=mo id=m3><h1>dom3</h1><div class="nr"></div></div>
            <div class=mo id=m4><h1>dom4</h1><div class="nr"></div></div>
            <div class=mo id=m5><h1>dom5</h1><div class="nr"></div></div>
        </div>
        <div class=right id=dom2>
            <div class=mo id=m6><h1>dom6</h1><div class="nr"></div></div>
            <div class=mo id=m7><h1>dom7</h1><div class="nr"></div></div>
        </div>
    </div>
    </body>
    </html>
    
    <p align="center">本特效由 <a href="http://www.CsrCode.cn">芯晴网页特效</a>丨CsrCode.Cn 收集于互联网，只为兴趣与学习交流，不作商业用途。来源：源码爱好者</p>

![SouthEast][]

[http_www.csrcode.cn_html_txdm_tcys_1943.htm]: http://www.csrcode.cn/html/txdm/tcys/1943.htm
[SouthEast]: /images/20220805/5b9fb033d108452ca41b4f588030e5db.png