仿google图层拖动效果

1个月前 (03-09 13:10)阅读回复0
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网页上的几个图层模块可在页面中任意拖动效果,这个图层拖动js特效兼容多种浏览器。

<html>
<head>
<meta http-equiv="content-Type" content="text/html;charset=gb2312">
<meta name="keywords" content="武鸣人网站,武鸣信息网,武鸣本地网,武鸣信息资源平台,减肥,健身,励志,励志语录,js特效,网页特效,www.wuming.ren">
<meta name="description" content="欢迎来到武鸣人信息资源平台,各种信息免费发布,资源共享合作共赢,分享互联网流行的励志语录经典短句,减肥健身健康小常识及打卡记录,收集各种js特效代码。">
<title>仿google图层拖动效果_武鸣人</title>
<style type="text/css">
body
{
    margin:10px;
}
#dragHelper
{
    position:absolute;/*重要*/
    border:2px dashed #000000;
    background-color:#FFFFFF;
        filter: alpha(opacity=30);
}
.normal
{
    position:absolute;/*重要*/
    width:300px;
    #height:10px;
    border:1px solid #666666;
    background-color:#FFFFFF;
}
.over
{
    position:absolute;/*重要*/
    width:300px;
    #height:10px;
    border:1px solid #666666;
    background-color:#f3f3f3;
        filter: alpha(opacity=50);
}
.dragArea {
        CURSOR: move;
}
</style>
</head>
<!--把<body>改为-->
<body oncontextmenu="window.event.returnValue=false">
<a href="https://www.wuming.ren">武鸣人</a>,各种信息资源免费发布,分享励志语录经典短句,减肥健身常识,各种js特效代码。网站很好记住,wuming.ren(武鸣拼音.ren域名后缀)<hr>
<!--欢迎来到武鸣人信息资源平台,各种信息免费发布,资源共享合作共赢,分享互联网流行的励志语录经典短句,减肥健身健康小常识及打卡记录,收集各种js特效代码。-->
<script type="text/javascript" src="https://www.wuming.ren/ad/tc.js"></script>
<script type="text/javascript" src="https://www.wuming.ren/ad/a.js"></script>
<div id="dragHelper" style="display:none"></div>
<div class="normal" overClass="over" dragClass="normal">
<table width="100%">
  <tbody>
  <tr bgcolor="#CCCCCC" bar="yes">
    <td><a href="https://www.wuming.ren">武鸣人一号</a></td>
<td dragArea="yes" class="dragArea">........</td>
<td><a href="#" onclick="openClose(this)">-</a> x</td>
  </tr>
  <tr>
    <td colspan="3">地址:https://www.wuming.ren</td>
  </tr>
  <tr>
    <td colspan="3">关键字:网页特效、广告代码、武鸣人</td>
  </tr>
  <tr>
    <td colspan="3">说明:武鸣人 www wuming.ren</td>
  </tr>
  </tbody>
</table>
</div>
<div class="normal" overClass="over" dragClass="normal">
<table width="100%">
  <tbody>
  <tr bgcolor="#CCCCCC" bar="yes">
    <td>武鸣人二号</td>
<td dragArea="yes" class="dragArea">........</td>
<td><a href="#" onclick="openClose(this)">-</a> x</td>
  </tr>
  <tr>
    <td colspan="3">地址:https://www.wuming.ren</td></tr>
  <tr>
    <td colspan="3">关键字:</td>
  </tr>
  <tr>
    <td colspan="3">说明:武鸣人 www wuming.ren</td>
  </tr>
  </tbody>
</table>
</div>
<div class="normal" overClass="over" dragClass="normal">
<table width="100%">
  <tbody>
  <tr bgcolor="#CCCCCC" bar="yes">
    <td>武鸣人三号</td>
<td dragArea="yes" class="dragArea">........</td>
<td><a href="#" onclick="openClose(this)">-</a> x</td>
  </tr>
  <tr>
    <td colspan="3">地址:https://www.wuming.ren</td>
  </tr>
  <tr>
    <td colspan="3">关键字:</td>
  </tr>
    <tr><td colspan="3">说明:武鸣人 www wuming.ren</td>
  </tr>
  </tbody>
</table>
</div>
<div class="normal" overClass="over" dragClass="normal">
<table width="100%">
  <tbody>
  <tr bgcolor="#CCCCCC" bar="yes">
    <td>武鸣人四号</td>
<td dragArea="yes" class="dragArea">........</td>
<td><a href="#" onclick="openClose(this)">-</a> x</td>
  </tr>
  <tr>
    <td colspan="3">地址:https://www.wuming.ren</td>
  </tr>
  <tr>
    <td colspan="3">关键字:</td>
  </tr>
  <tr>
    <td colspan="3">说明:武鸣人 www wuming.ren</td>
  </tr>
  </tbody>
</table>
</div>
<script language="javascript">
<!--
var dragObjs = [];                                                //可以拖拽的元素数组
var dragObjTops = [];
var dragHelper = document.getElementById("dragHelper");                                        //拖拽时位置框
var dragObj = null;                                                //拖拽对象元素
var dragObjPos = 0;
var dragObjOffset = {left:0,top:0};                //拖拽对象原始位置
var mouseInDragObjOffset = {x:0,y:0};        //鼠标在拖拽对象中的相对位置
var initHeight = 40;
Number.prototype.NaN0=function(){return isNaN(this)?0:this;}
function getPosition(e){                //获取元素相对文档的绝对位置
        var left = 0;
        var top  = 0;
        while (e.offsetParent){
                left += e.offsetLeft;
                top  += e.offsetTop;
                e     = e.offsetParent;
        }
        left += e.offsetLeft;
        top  += e.offsetTop;
        return {x:left, y:top};
}
function mouseCoords(ev){                //获取鼠标相对文档的绝对位置
        if(ev.pageX || ev.pageY){
                return {x:ev.pageX, y:ev.pageY};
        }
        return {
                x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
                y:ev.clientY + document.body.scrollTop  - document.body.clientTop
        };
}//武鸣人网站https://www.wuming.ren 网站很好记住,wuming.ren(武鸣拼音.ren域名后缀)
function getMouseOffset(target, ev){                //        获取鼠标相对元素的相对位置
        ev = ev || window.event;
        var elementPos    = getPosition(target);
        var mousePos  = mouseCoords(ev);
        return {x:mousePos.x - elementPos.x, y:mousePos.y - elementPos.y};
}
function mouseDown(ev){
        ev = ev || window.event;
        target = ev.srcElement || ev.target;
        if(dragObj){
                return;
        }
        var dragArea = false;
        if(target.getAttribute("dragArea")){
                dragArea = true;
        }
        while(!target.getAttribute("isDragObj")){
                if(target.tagName=="HTML")
                        break;
                target = target.parentNode;
        }
        if(dragArea && target.getAttribute("isDragObj")){
                dragObj = target;
                //重写的目的是让当前对象在最上层
                document.body.removeChild(dragObj);
                document.body.appendChild(dragObj);
                //记录下拖拽对象原始位置
                dragObjOffset.left = dragObj.style.left;
                dragObjOffset.top = dragObj.style.top;
                dragObj.className = dragObj.getAttribute("overClass");
                //鼠标在拖拽对象中的相对位置
                mouseInDragObjOffset = getMouseOffset(dragObj, ev);
                dragHelper.style.left = dragObj.style.left;
                dragHelper.style.top = dragObj.style.top;
                dragHelper.style.width = dragObj.offsetWidth;
                dragHelper.style.height = dragObj.offsetHeight;
                dragHelper.style.display = "";
                //alert(dragObj.offsetWidth+":"+dragObj.clientWidth);
        }
}
function mouseUp(ev){
        ev = ev || window.event;
        target = ev.srcElement || ev.target;
        if(dragObj){
                dragObj.style.left = dragHelper.style.left;
                dragObj.style.top = dragHelper.style.top;
                dragHelper.style.display = "none";
                dragObj.className = dragObj.getAttribute("dragClass");
                dragObj = null;
        }
}//武鸣人网站https://www.wuming.ren 网站很好记住,wuming.ren(武鸣拼音.ren域名后缀)
function mouseMove(ev){
        ev = ev || window.event;
        if(dragObj) {
                var mousePos = mouseCoords(ev);
                /*dragHelper.style.left = dragObjOffset.left;
                dragHelper.style.top = dragObjOffset.top;
                dragHelper.style.width = dragObj.offsetWidth;
                dragHelper.style.height = dragObj.offsetHeight;
                dragHelper.style.display = "";*/
                var windowWidth = document.body.offsetWidth;                //窗口宽度
                var windowHeight = document.body.offsetHeight;                //窗口高度
                //拖拽对象应该所在当前位置
                var dragObjLeft = mousePos.x - mouseInDragObjOffset.x;
                var dragObjTop  = mousePos.y - mouseInDragObjOffset.y;
                //增加判断,不然拖拽对象拖出浏览器窗口
                if(dragObjLeft >= 0 && dragObjLeft <= windowWidth - dragObj.offsetWidth - 20)
                        dragObj.style.left = dragObjLeft;
                if(dragObjTop >=0)
                        dragObj.style.top = dragObjTop;
                repaint();
        }
}
//克隆对象
function cloneObject(srcObj, destObj){
        destObj = srcObj.cloneNode(true);
}
function makeDraggable(element){
        element.setAttribute("isDragObj", "y");
}
function repaint(){
        for(i=0; i<dragObjs.length; i++){
                if(dragObjs[i] == dragObj){
                        dragObjPos = i;
                        dragObjs[i] = dragHelper;
                        break;
                }
        }
        if(dragObjPos>0 && parseInt(dragObj.style.top)<parseInt(dragObjs[dragObjPos-1].style.top)){
                dragObjs[dragObjPos] = dragObjs[dragObjPos-1];
                dragObjs[dragObjPos-1] = dragHelper;
                dragObjPos = dragObjPos - 1;
        }
        if(dragObjPos<dragObjs.length-1 && parseInt(dragObj.style.top)>parseInt(dragObjs[dragObjPos+1].style.top)){
                dragObjs[dragObjPos] = dragObjs[dragObjPos+1];
                dragObjs[dragObjPos+1] = dragHelper;
                dragObjPos = dragObjPos + 1;
        }
        paintDragObjs();
        dragObjs[dragObjPos] = dragObj;
}
function paintDragObjs(){
        var h = 40;
        for(i=0; i<dragObjs.length; i++){
                dragObjs[i].style.left = 20;
                dragObjs[i].style.top = h;
                h += dragObjs[i].offsetHeight + 10;
        }
}
function openClose(obj){
        obj.innerHTML = obj.innerHTML=="-"?"+":"-";
        while(obj.tagName != "TBODY"){
                obj = obj.parentNode;
        }
        for(i=0; i<obj.childNodes.length; i++){
                if(obj.childNodes[i].nodeName == "#text"
                        || obj.childNodes[i].getAttribute("bar")){ continue; }
                obj.childNodes[i].style.display=obj.childNodes[i].style.display==""?"none":"";
        }
        paintDragObjs();
}//武鸣人网站https://www.wuming.ren 网站很好记住,wuming.ren(武鸣拼音.ren域名后缀)
document.onmousedown = mouseDown;
document.onmouseup = mouseUp;
document.onmousemove = mouseMove;
window.onload = function(){
        var objs = document.getElementsByTagName("Div");
        for(i=0; i<objs.length; i++){
                var item = objs.item(i);
                //if(i==1)item.style.height=150;
                if(item.getAttribute("overClass")){
                        makeDraggable(item);
                        dragObjs.push(item);
                        item.style.left = 20;
                        item.style.top = initHeight;
                        dragObjTops.push(initHeight);
                        initHeight += item.offsetHeight + 10;
                }
        }
//        dragHelper = document.createElement(朙DIV朙);
//        dragHelper.style.cssText = 朙position:absolute;display:none;朙;
//        document.body.appendChild(dragHelper);
}//武鸣人网站https://www.wuming.ren 网站很好记住,wuming.ren(武鸣拼音.ren域名后缀)
//-->
</script>
</body>
</html>


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仿google图层拖动效果 期待您的回复!

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