• 拖动DIV如何保存的问题


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>Drag & Drop</title>
    <style type="text/css">
    body{ background-color:#36393D; font-size:12px; margin:0px; }
    DIV.dragLayer{
    border:1px solid #369;
    background-color:#6BBA70;
    margin-bottom:10px;
    }
    DIV.dragLayer_over{
    border:1px solid #C79810;
    background-color:#6BBA70;
    filter:alpha(opacity=80);
    -moz-opacity:0.8; /* Moz + FF */
    opacity: 0.8; /* 支持CSS3的浏览器(FF 1.5也支持)*/
    }
    DIV.clone_dragLayer_over{
    border:1px dashed #FA0;
    background-color:#6BBA70;
    filter:alpha(opacity=80);
    -moz-opacity:0.8; /* Moz + FF */
    opacity: 0.8; /* 支持CSS3的浏览器(FF 1.5也支持)*/
    margin-bottom:10px;
    }
    DIV.dragHeader{
    100%; height:20px ; line-height:20px; background-color:#006E2E; color:#FFFFFF;
    }
    DIV.dragHeader_over{
    100%; height:20px ; line-height:20px; background-color:#C79810;
    }
    SPAN.min,SPAN.close{cursor:pointer;font-family:Webdings}
    #container{margin:0px}
    #leftcontainer{float:left; 33%;}
    #middlecontainer{float:left; 34%;}
    #middlecontainer div{margin-left:auto; margin-right:auto}
    #rightcontainer{float:right; 33%;}
    #rightcontainer div{float:right}
    DIV.content{100%; padding:4px}
    </style>
    <script type="text/javascript">
    var CoolDrag={
    obj : null, //目标对象
    cloneobj : null, //拖动对象
    container : null, //容器
    dragged : false, //拖动标志
    shadow: null, //阴影

    init:function(id){
    CoolDrag.container = $(id);
    var cooldrag = CoolDrag.read("cooldrag");
    if(cooldrag != ""){//读取cookie
    var subcontainer = cooldrag.split("|");
    for(var i=0 ; i < subcontainer.length; i++){
    var subcontainerItem = subcontainer[i].split(":");
    if($(subcontainerItem[0])){
    var items = subcontainerItem[1].split(",");
    for(var j=0; j< items.length; j++){
    if($(items[j])) $(subcontainerItem[0]).appendChild($(items[j]));
    }
    }
    }
    }
    cleanWhitespace(CoolDrag.container)//清除空白节点
    var collection = CoolDrag.container.getElementsByTagName("DIV");
    for(var i = 0; i < collection.length; i++){
    if(collection[i].className == "dragLayer"){
    var o = collection[i].firstChild;
    SavedObject.push([o.parentNode.id,1,o.parentNode.style.height]);
    o.onmousedown = CoolDrag.start;
    }
    }
    document.onmousemove = CoolDrag.drag;
    document.onmouseup = CoolDrag.end;
    },

    start:function(e){
    if(!e) e = window.event;
    var obj = getT(e);
    if(obj.className == "min"){
    CoolDrag.min(e);
    return;
    }else if(obj.className == "close"){
    CoolDrag.close(e);
    return;
    }else{
    if(obj.className != "dragHeader") obj = obj.parentNode;
    }
    CoolDrag.dragged = true;
    CoolDrag.obj = obj.parentNode;
    CoolDrag.cloneobj = CoolDrag.obj.cloneNode(true);
    document.body.appendChild(CoolDrag.cloneobj);
    CoolDrag.shadow = document.createElement("DIV");
    document.body.appendChild(CoolDrag.shadow);
    with(CoolDrag.cloneobj.style){
    position = "absolute";
    zIndex = 1000;
    left = getRealLeft(CoolDrag.obj) + "px";
    top = getRealTop(CoolDrag.obj) + "px";
    }
    with(CoolDrag.shadow.style){
    position = "absolute";
    zIndex = 999;
    left = getRealLeft(CoolDrag.obj) + 4 + "px";
    top = getRealTop(CoolDrag.obj) + 4 + "px";
    width = CoolDrag.obj.offsetWidth + "px";
    height = CoolDrag.obj.offsetHeight + "px";
    backgroundColor = "#ccc";
    if(navigator.userAgent.indexOf("Gecko") != -1)
    MozOpacity = "0.5";
    else if(navigator.userAgent.indexOf("MSIE") != -1)
    filter = "alpha(opacity=50)";
    }

    CoolDrag.cloneobj.initMouseX = getMouseX(e);
    CoolDrag.cloneobj.initMouseY = getMouseY(e);
    CoolDrag.cloneobj.initoffsetL = getRealLeft(CoolDrag.obj);
    CoolDrag.cloneobj.initoffsetY = getRealTop(CoolDrag.obj);
    //change style
    CoolDrag.cloneobj.firstChild.className="dragHeader_over";
    CoolDrag.cloneobj.className = "dragLayer_over";
    CoolDrag.obj.className="clone_dragLayer_over";
    },

    drag:function(e){
    if(!CoolDrag.dragged||CoolDrag.obj==null)return;
    if(!e) e = window.event;
    var currenX = getMouseX(e);
    var currenY = getMouseY(e);

    if(CoolDrag.cloneobj.initoffsetL + currenX - CoolDrag.cloneobj.initMouseX > getRealLeft(CoolDrag.container))
    CoolDrag.cloneobj.style.left = (CoolDrag.cloneobj.initoffsetL + currenX - CoolDrag.cloneobj.initMouseX) + "px";
    else
    CoolDrag.cloneobj.style.left = getRealLeft(CoolDrag.container) + "px";
    if(CoolDrag.cloneobj.initoffsetY + currenY - CoolDrag.cloneobj.initMouseY > getRealTop(CoolDrag.container))
    CoolDrag.cloneobj.style.top = (CoolDrag.cloneobj.initoffsetY + currenY - CoolDrag.cloneobj.initMouseY) + "px";
    else
    CoolDrag.cloneobj.style.top = getRealTop(CoolDrag.container) + "px";
    var collection = CoolDrag.container.getElementsByTagName("DIV");
    var finded = false;
    for(var i = 0; i < collection.length; i++){
    var o = collection[i];
    if(o.className == "dragLayer"){
    if(((getRealLeft(o) <= CoolDrag.cloneobj.offsetLeft && getRealLeft(o) + o.offsetWidth >= CoolDrag.cloneobj.offsetLeft) ||
    (getRealLeft(o) <= CoolDrag.cloneobj.offsetLeft + CoolDrag.cloneobj.offsetWidth &&
    getRealLeft(o) + o.offsetWidth >= CoolDrag.cloneobj.offsetLeft + CoolDrag.cloneobj.offsetWidth)) &&
    getRealTop(o) <= CoolDrag.cloneobj.offsetTop && getRealTop(o) + o.offsetHeight >= CoolDrag.cloneobj.offsetTop)
    {
    //window.status = getRealTop(o.parentNode)+"|"+(CoolDrag.cloneobj.offsetTop - 8);
    if(getRealTop(o.parentNode) >= CoolDrag.cloneobj.offsetTop - 8){
    o.parentNode.insertBefore(CoolDrag.obj,o);
    }else{
    if(o.nextSibling)
    o.parentNode.insertBefore(CoolDrag.obj,o.nextSibling);
    else
    o.parentNode.appendChild(CoolDrag.obj);
    }
    finded = true;
    break;
    }
    }
    }
    if(!finded){
    for(var i = 0; i < CoolDrag.container.childNodes.length; i++){
    var o = CoolDrag.container.childNodes[i];
    if(getRealLeft(o) <= CoolDrag.cloneobj.offsetLeft && getRealLeft(o) + o.offsetWidth >= CoolDrag.cloneobj.offsetLeft)
    o.appendChild(CoolDrag.obj);
    }
    }
    with(CoolDrag.shadow.style){
    left = (CoolDrag.cloneobj.offsetLeft + 4) + "px";
    top = (CoolDrag.cloneobj.offsetTop + 4) + "px";
    }
    //document.title = CoolDrag.cloneobj.style.left + "|" + CoolDrag.shadow.style.left;
    },

    end:function(e){
    if(!CoolDrag.dragged)return;
    CoolDrag.obj.className = "dragLayer";
    CoolDrag.dragged = false;
    CoolDrag.shadow.parentNode.removeChild(CoolDrag.shadow);
    CoolDrag.timer = CoolDrag.repos(150,15);
    //保存cookie
    var str="";
    for(var i=0; i<CoolDrag.container.childNodes.length; i++){
    var o = CoolDrag.container.childNodes[i];
    if(i>0)str += "|";
    str += o.id + ":";
    for(var j=0; j < o.childNodes.length; j++){
    if(j>0)str += ",";
    str += o.childNodes[j].id ;
    }
    }
    CoolDrag.save("cooldrag",str,24);
    },
    repos:function(aa,ab){
    //var f=CoolDrag.obj.filters.alpha.opacity;
    var tl=getRealLeft(CoolDrag.cloneobj);
    var tt=getRealTop(CoolDrag.cloneobj);
    var kl=(tl-getRealLeft(CoolDrag.obj))/ab;
    var kt=(tt-getRealTop(CoolDrag.obj))/ab;
    //var kf=f/ab;
    return setInterval(function(){if(ab<1){
    clearInterval(CoolDrag.timer);
    CoolDrag.cloneobj.parentNode.removeChild(CoolDrag.cloneobj);
    CoolDrag.obj=null;
    return;
    }
    ab--;
    tl-=kl;
    tt-=kt;
    //f-=kf;
    CoolDrag.cloneobj.style.left=parseInt(tl)+"px";
    CoolDrag.cloneobj.style.top=parseInt(tt)+"px";
    //CoolDrag.tdiv.filters.alpha.opacity=f;
    }
    ,aa/ab)
    },
    min:function(e){
    if(!e) e = window.event;
    var obj = getT(e);
    var rootObj = obj.parentNode.parentNode.parentNode;
    var id = rootObj.id;
    if(SavedObject.getStatus(id)[1]){
    SavedObject.setStatus(id,0);
    rootObj.style.height = "20px";
    rootObj.childNodes[1].style.display = 'none';
    }else{
    SavedObject.setStatus(id,1);
    rootObj.lastChild.style.display = '';
    rootObj.style.height = SavedObject.getStatus(id)[2];
    }
    obj.innerHTML = obj.innerHTML==0 ? 2 :0;
    },
    close:function(e){
    if(!e) e = window.event;
    var obj = getT(e);
    var rootObj = obj.parentNode.parentNode.parentNode;
    rootObj.parentNode.removeChild(rootObj);
    },
    save:function(name, value, hours){
    var expire = "";
    if(hours != null)
    {
    expire = new Date((new Date()).getTime() + hours * 3600000);
    expire = "; expires=" + expire.toGMTString();
    }
    document.cookie = name + "=" + escape(value) + expire;
    },
    read:function(name){
    var cookieValue = "";
    var search = name + "=";
    if(document.cookie.length > 0)
    {
    offset = document.cookie.indexOf(search);
    if (offset != -1)
    {
    offset += search.length;
    end = document.cookie.indexOf(";", offset);
    if (end == -1) end = document.cookie.length;
    cookieValue = unescape(document.cookie.substring(offset, end))
    }
    }
    return cookieValue;
    }
    }
    function $(id){
    return document.getElementById(id);
    }
    function getT(e){
    return e.target || e.srcElement;
    }
    function getMouseX(e){
    return e.pageX ? e.pageX : e.clientX + document.body.scrollLeft - document.body.clientLeft;
    }
    function getMouseY(e){
    return e.pageY ? e.pageY : e.clientY + document.body.scrollTop - document.body.clientTop;
    }
    function getRealLeft(o){
    var l = 0;
    while(o){
    l += o.offsetLeft - o.scrollLeft;
    o = o.offsetParent;
    }
    return(l);
    }
    function getRealTop(o){
    var t = 0;
    while(o){
    t += o.offsetTop - o.scrollTop;
    o = o.offsetParent;
    }
    return(t);
    }
    function cleanWhitespace(node) {
    var notWhitespace = //S/;
    for (var i=0; i < node.childNodes.length; i++) {
    var childNode = node.childNodes[i];
    if ((childNode.nodeType == 3) && (!notWhitespace.test(childNode.nodeValue))) {
    node.removeChild(node.childNodes[i]);
    i--;
    }
    if (childNode.nodeType == 1) {
    cleanWhitespace(childNode);
    }
    }
    }
    var SavedObject={
    elements : new Array(),
    setStatus : function(id,s){
    for(var i=0;i<SavedObject.elements.length;i++){
    if(SavedObject.elements[i][0]==id){
    SavedObject.elements[i][1]=s;
    break;
    }
    }
    },
    getStatus : function(id){
    for(var i=0;i<SavedObject.elements.length;i++){
    if(SavedObject.elements[i][0]==id)return SavedObject.elements[i];
    }
    },
    push : function(o){
    SavedObject.elements[SavedObject.elements.length]=o;
    }
    }
    </script>
    </head>
    <body onLoad="CoolDrag.init('container');">
    <br />
    <div id="container">
    <div id="leftcontainer">
    <div style="height:100px; 200px; " class="dragLayer" id="win1">
    <div class="dragHeader">
    <div style="float:left">第一个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 1</div>
    </div>
    <div style="height:100px; 200px; " class="dragLayer" id="win2">
    <div class="dragHeader">
    <div style="float:left">第二个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 2</div>
    </div>
    </div>
    <div id="middlecontainer">
    <div style="height:100px; 200px; " class="dragLayer" id="win3">
    <div class="dragHeader">
    <div style="float:left">第三个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 3</div>
    </div>
    <div style="height:100px; 200px; " class="dragLayer" id="win4">
    <div class="dragHeader">
    <div style="float:left">第四个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 4</div>
    </div>
    </div>
    <div id="rightcontainer">
    <div style="height:100px; 200px; " class="dragLayer" id="win5">
    <div class="dragHeader">
    <div style="float:left">第五个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 5</div>
    </div>
    <div style="height:100px; 200px; " class="dragLayer" id="win6">
    <div class="dragHeader">
    <div style="float:left">第六个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 6</div>
    </div>
    <div style="height:100px; 200px; " class="dragLayer" id="win7">
    <div class="dragHeader">
    <div style="float:left">第七个窗口</div>
    <div style="float:right; "><span class="min">0</span><span class="close">r</span></div>
    </div>
    <div class="content">window 7</div>
    </div>
    </div>
    </div>
    </body>
    </html>

  • 相关阅读:
    quiver()函数
    norm()函数
    求离散点的曲率
    WSGI接口简单介绍以及用 WSGI 协议的地方为何不直接用http?
    DLL编写中extern “C”和__stdcall的作用
    计算机中的单位
    Flask 源码阅读笔记 开篇
    一个Flask应用运行过程剖析
    Python 实例方法、类方法、静态方法的区别与作用以及私有变量定义和模块导入的区别
    flask之信号
  • 原文地址:https://www.cnblogs.com/zerogo/p/2209117.html
Copyright © 2020-2023  润新知