首页
所有分类
TAGS
文字工具 EMOJI BIBLE
编程 Javascript

JS仿iGoogle自定义首页模块拖拽特效的方法

Posted in Javascript onFebruary 13, 2015

本文实例讲述了JS仿iGoogle自定义首页模块拖拽特效的方法。分享给大家供大家参考。具体实现方法如下：

<!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=utf-8" />

    <title>JS仿iGoogle自定义首页模块拖拽效果</title>

    <script type="text/javascript">

        var Common = {

            getEvent: function() {//ie/ff

                if (document.all) {

                    return window.event;

                }

                func = getEvent.caller;

                while (func != null) {

                    var arg0 = func.arguments[0];

                    if (arg0) {

                        if ((arg0.constructor == Event || arg0.constructor == MouseEvent) || (typeof (arg0) == "object" && arg0.preventDefault && arg0.stopPropagation)) {

                            return arg0;

                        }

                    }

                    func = func.caller;

                }

                return null;

            },

            getMousePos: function(ev) {

                if (!ev) {

                    ev = this.getEvent();

                }

                if (ev.pageX || ev.pageY) {

                    return {

                        x: ev.pageX,

                        y: ev.pageY

                    };

                }
                if (document.documentElement && document.documentElement.scrollTop) {

                    return {

                        x: ev.clientX + document.documentElement.scrollLeft - document.documentElement.clientLeft,

                        y: ev.clientY + document.documentElement.scrollTop - document.documentElement.clientTop

                    };

                }

                else if (document.body) {

                    return {

                        x: ev.clientX + document.body.scrollLeft - document.body.clientLeft,

                        y: ev.clientY + document.body.scrollTop - document.body.clientTop

                    };

                }

            },

            getElementPos: function(el) {

                el = this.getItself(el);

                var _x = 0, _y = 0;

                do {

                    _x += el.offsetLeft;

                    _y += el.offsetTop;

                } while (el = el.offsetParent);

                return { x: _x, y: _y };

            },

            getItself: function(id) {

                return "string" == typeof id ? document.getElementById(id) : id;

            },

            getViewportSize: { w: (window.innerWidth) ? window.innerWidth : (document.documentElement && document.documentElement.clientWidth) ? document.documentElement.clientWidth : (document.body?document.body.offsetWidth:0), h: (window.innerHeight) ? window.innerHeight : (document.documentElement && document.documentElement.clientHeight) ? document.documentElement.clientHeight : (document.body ? document.body.offsetHeight : 0) },

            isIE: document.all ? true : false,

            setOuterHtml: function(obj, html) {

                var Objrange = document.createRange();

                obj.innerHTML = html;

                Objrange.selectNodeContents(obj);

                var frag = Objrange.extractContents();

                obj.parentNode.insertBefore(frag, obj);

                obj.parentNode.removeChild(obj);

            },

            firstChild: function(parentObj, tagName) {

                if (Common.isIE) {

                    return parentObj.firstChild;

                }

                else {

                    var arr = parentObj.getElementsByTagName(tagName);

                    return arr[0];

                }

            },

            lastChild: function(parentObj, tagName) {

                if (Common.isIE) {

                    return parentObj.lastChild;

                }

                else {

                    var arr = parentObj.getElementsByTagName(tagName);

                    return arr[arr.length - 1];

                }

            },

            setCookie: function(name, value) {

                document.cookie = name + "=" + value;

            },

            getCookie: function(name) {

                var strCookie = document.cookie;

                var arrCookie = strCookie.split("; ");

                for (var i = 0; i < arrCookie.length; i++) {

                    var arr = arrCookie[i].split("=");

                    if (!arr[1]) {

                        return "";

                    }

                    if (arr[0] == name) {

                        return arr[1];

                    }

                }

                return "";

            },

            delCookie: function(name) {

                var exp = new Date();

                exp.setTime(exp.getTime() - 1);

                var cval = this.getCookie(name);

                if (cval != null) document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();

            }

        }

        var Class = {

            create: function() {

                return function() { this.init.apply(this, arguments); }

            }

        }

        var Drag = Class.create();

        Drag.prototype = {

            init: function(titleBar, dragDiv, Options) {

                //设置点击是否透明，默认透明60%

                titleBar = Common.getItself(titleBar);

                dragDiv = Common.getItself(dragDiv);

                this.dragArea = { maxLeft: -9999, maxRight: 9999, maxTop: -9999, maxBottom: 9999 };

                if (Options) {

                    this.opacity = Options.opacity ? (isNaN(parseInt(Options.opacity)) ? 100 : parseInt(Options.opacity)) : 100;

                    if (Options.area) {

                        if (Options.area.left && !isNaN(parseInt(Options.area.left))) { this.dragArea.maxLeft = Options.area.left };

                        if (Options.area.right && !isNaN(parseInt(Options.area.right))) { this.dragArea.maxRight = Options.area.right };

                        if (Options.area.top && !isNaN(parseInt(Options.area.top))) { this.dragArea.maxTop = Options.area.top };

                        if (Options.area.bottom && !isNaN(parseInt(Options.area.bottom))) { this.dragArea.maxBottom = Options.area.bottom };

                    }

                }

                else {

                    this.opacity = 60;

                }

                this.originDragDiv = null;

                this.tmpX = 0;

                this.tmpY = 0;

                this.moveable = false;

                this.dragArray = [];
                var dragObj = this;

                var dragTbl = document.getElementById("dragTable");
                titleBar.onmousedown = function(e) {

                    var ev = e || window.event || Common.getEvent();

                    //只允许通过鼠标左键进行拖拽,IE鼠标左键为1 FireFox为0

                    if (Common.isIE && ev.button == 1 || !Common.isIE && ev.button == 0) {

                    }

                    else {

                        return false;

                    }
                    //处理特殊情况：在最上/下面MOVE时不碰到现有DIV的情况下，又回到起始拖拽的列最上/下方

                    var tmpColId;

                    for (c = 0; c < dragTbl.rows[0].cells.length; c++) {

                        for (k = 0; k < dragTbl.rows[0].cells[c].getElementsByTagName("DIV").length; k++) {

                            if (dragDiv.id == dragTbl.rows[0].cells[c].getElementsByTagName("DIV")[k].id) {

                                tmpColId = c;

                                break;

                            }

                        }

                    }

                    var tmpPosFirstChild = Common.getElementPos(Common.firstChild(dragTbl.rows[0].cells[tmpColId], "DIV"));

                    var tmpPosLastChild = Common.getElementPos(Common.lastChild(dragTbl.rows[0].cells[tmpColId], "DIV"));

                    var tmpObj = { colId: tmpColId, firstChildUp: tmpPosFirstChild.y, lastChildDown: tmpPosLastChild.y + Common.lastChild(dragTbl.rows[0].cells[tmpColId], "DIV").offsetHeight };
                    //保存当前可拖拽各容器的所在位置

          dragObj.dragArray = dragObj.RegDragsPos();
                    //插入虚线框

                    var dashedElement = document.createElement("div");

                    dashedElement.style.cssText = dragDiv.style.cssText;

                    dashedElement.style.border = " dashed 2px #aaa ";

                    dashedElement.style.marginBottom = "6px";

                    dashedElement.style.width = dragDiv.offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px"; //减去boderWidth使虚线框大小保持与dragDiv一致

         dashedElement.style.height = dragDiv.offsetHeight - 2 * parseInt(dashedElement.style.borderWidth) + "px"; //加上px 保证FF正确                    

          dashedElement.style.position = "relative";

                    if (dragDiv.nextSibling) {

                        dragDiv.parentNode.insertBefore(dashedElement, dragDiv.nextSibling);

                    }

                    else {

                        dragDiv.parentNode.appendChild(dashedElement);

                    }

                    //拖动时变为absolute

                    dragDiv.style.width = dragDiv.offsetWidth + "px";

                    dragDiv.style.position = "absolute";


                    dragObj.moveable = true;

                    dragDiv.style.zIndex = dragObj.GetZindex() + 1;
                    var downPos = Common.getMousePos(ev);

                    dragObj.tmpX = downPos.x - dragDiv.offsetLeft;

                    dragObj.tmpY = downPos.y - dragDiv.offsetTop;
                    if (Common.isIE) {

                        dragDiv.setCapture();

                    } else {

                        window.captureEvents(Event.mousemove);

                    }
                    dragObj.SetOpacity(dragDiv, dragObj.opacity);
                    //FireFox 去除容器内拖拽图片问题

                    if (ev.preventDefault) {

                        ev.preventDefault();

                        ev.stopPropagation();

                    }
                    document.onmousemove = function(e) {

                        if (dragObj.moveable) {

                            var ev = e || window.event || Common.getEvent();

                            //IE 去除容器内拖拽图片问题

                            if (document.all) //IE

                            {

                                ev.returnValue = false;

                            }
                            var movePos = Common.getMousePos(ev);

                            dragDiv.style.left = Math.max(Math.min(movePos.x - dragObj.tmpX, dragObj.dragArea.maxRight), dragObj.dragArea.maxLeft) + "px";

                            dragDiv.style.top = Math.max(Math.min(movePos.y - dragObj.tmpY, dragObj.dragArea.maxBottom), dragObj.dragArea.maxTop) + "px";
                            var targetDiv = null;

                            for (var k = 0; k < dragObj.dragArray.length; k++) {

                                if (dragDiv == dragObj.dragArray[i]) {

                                    continue;

                                }
                                if (movePos.x > dragObj.dragArray[k].PosLeft && movePos.x < dragObj.dragArray[k].PosLeft + dragObj.dragArray[k].PosWidth

                                    && movePos.y > dragObj.dragArray[k].PosTop && movePos.y < dragObj.dragArray[k].PosTop + dragObj.dragArray[k].PosHeight

                                ) {

                                    targetDiv = document.getElementById(dragObj.dragArray[k].DragId);

                                    if (movePos.y < dragObj.dragArray[k].PosTop + dragObj.dragArray[k].PosHeight / 2) {

                                        //往上移

                                        dashedElement.style.width = targetDiv.offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px";

                                        targetDiv.parentNode.insertBefore(dashedElement, targetDiv);

                                    }

                                    else {

                                        //往下移

                                        dashedElement.style.width = targetDiv.offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px";

                                        if (targetDiv.nextSibling) {

                                            targetDiv.parentNode.insertBefore(dashedElement, targetDiv.nextSibling);

                                        }

                                        else {

                                            targetDiv.parentNode.appendChild(dashedElement);

                                        }

                                    }

                                }

                            }

                            

                            for (j = 0; j < dragTbl.rows[0].cells.length; j++) {

                                var startLeft = Common.getElementPos(dragTbl.rows[0].cells[j]).x;

                                if (movePos.x > startLeft && movePos.x < startLeft + dragTbl.rows[0].cells[j].offsetWidth) {

                                    ///列无DIV

                                    if (dragTbl.rows[0].cells[j].getElementsByTagName("div").length == 0) {

                                        dashedElement.style.width = dragTbl.rows[0].cells[j].offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px";

                                        dragTbl.rows[0].cells[j].appendChild(dashedElement);

                                    }

                                    else {

                                        var posFirstChild = Common.getElementPos(Common.firstChild(dragTbl.rows[0].cells[j], "DIV"));

                                        var posLastChild = Common.getElementPos(Common.lastChild(dragTbl.rows[0].cells[j], "DIV"));

                                        //处理特殊情况：在最上/下面MOVE时不碰到现有DIV的情况下，又回到起始拖拽的列最上/下方

                                        var tmpUp, tmpDown;

                                        if (tmpObj.colId == j) {

                                            tmpUp = tmpObj.firstChildUp;

                                            tmpDown = tmpObj.lastChildDown;

                                        }

                                        else {

                                            tmpUp = posFirstChild.y;

                                            tmpDown = posLastChild.y + Common.lastChild(dragTbl.rows[0].cells[j], "DIV").offsetHeight;

                                        }
                                        if (movePos.y < tmpUp) {///从最上面插入虚线框

                                            dashedElement.style.width = Common.firstChild(dragTbl.rows[0].cells[j], "DIV").offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px";

                                            dragTbl.rows[0].cells[j].insertBefore(dashedElement, Common.firstChild(dragTbl.rows[0].cells[j], "DIV"));

                                        }

                                        else if (movePos.y > tmpDown) {///从最下面插入虚线框

                                            dashedElement.style.width = Common.lastChild(dragTbl.rows[0].cells[j], "DIV").offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px";

                                            dragTbl.rows[0].cells[j].appendChild(dashedElement);

                                        }
                                    }

                                }

                            }

                        }

                    };
                    document.onmouseup = function() {

                        if (dragObj.moveable) {

                            if (Common.isIE) {

                                dragDiv.releaseCapture();

                            }

                            else {

                                window.releaseEvents(dragDiv.mousemove);

                            }

                            dragObj.SetOpacity(dragDiv, 100);

                            dragObj.moveable = false;

                            dragObj.tmpX = 0;

                            dragObj.tmpY = 0;
                            //务必写在此IF内

                            dragDiv.style.left = "";

                            dragDiv.style.top = "";
                            dragDiv.style.width = "";

                            dragDiv.style.position = "";  

                            dashedElement.parentNode.insertBefore(dragDiv, dashedElement);

                            dashedElement.parentNode.removeChild(dashedElement);

                        }
                    };
                }

            },

            SetOpacity: function(dragDiv, n) {

                if (Common.isIE) {

                    dragDiv.filters.alpha.opacity = n;

                }

                else {

                    dragDiv.style.opacity = n / 100;

                }
            },

            GetZindex: function() {

                var maxZindex = 0;

                var divs = document.getElementsByTagName("div");

                for (z = 0; z < divs.length; z++) {

                    maxZindex = Math.max(maxZindex, divs[z].style.zIndex);

                }

                return maxZindex;

            },

            RegDragsPos: function() {

                var arrDragDivs = new Array();

                var dragTbl = document.getElementById("dragTable");

                var tmpDiv, tmpPos;

                for (i = 0; i < dragTbl.getElementsByTagName("div").length; i++) {

                    tmpDiv = dragTbl.getElementsByTagName("div")[i];

                    if (tmpDiv.className == "dragDiv") {

                        tmpPos = Common.getElementPos(tmpDiv);

                        arrDragDivs.push({ DragId: tmpDiv.id, PosLeft: tmpPos.x, PosTop: tmpPos.y, PosWidth: tmpDiv.offsetWidth, PosHeight: tmpDiv.offsetHeight });

                    }

                }

                return arrDragDivs;

            }

        }
        window.onload = function() {

            var dragTbl = document.getElementById("dragTable");

            if (Common.getCookie("configArr")) {

                var configArr = eval("(" + Common.getCookie("configArr") + ")");

                for (i = 0; i < dragTbl.rows[0].cells.length; i++) {

                    for (j = 0; j < configArr[i].length; j++) {

                        dragTbl.rows[0].cells[i].appendChild(document.getElementById(configArr[i][j]));

                    }

                }

            }

            new Drag("titleBar1", "dragDiv1");

            new Drag("titleBar2", "dragDiv2");

            new Drag("titleBar3", "dragDiv3");

            new Drag("titleBar4", "dragDiv4");

            new Drag("titleBar5", "dragDiv5");

        }
        window.onunload = function() {

            var dragTbl = document.getElementById("dragTable");

            var configArr = "";

            for (i = 0; i < dragTbl.rows[0].cells.length; i++) {

                var tmpStr = "";

                for (j = 0; j < dragTbl.rows[0].cells[i].getElementsByTagName("DIV").length; j++) {

                    tmpStr += (tmpStr == "" ? "" : ",") + "'" + dragTbl.rows[0].cells[i].getElementsByTagName("DIV")[j].id + "'";

                }

                configArr += (configArr == "" ? "" : ",") + "[" + tmpStr + "]";

            }

            //format like: [['dragDiv3','dragDiv5'],['dragDiv4','dragDiv1'],['dragDiv2']]

            Common.setCookie("configArr", "[" + configArr + "]");            

        }

    </script>

    <style type="text/css">

    .spanDiv{

    position:relative;

    width:5px;

    height:5px;

    }
    .dragDiv,.nodragDiv{

    position:relative;

    filter:alpha(opacity=100);

    opacity:1;

    margin-bottom:6px;

    background-color:#FFFFFF;

    }

    </style>

</head>

<body > 

<script type="text/javascript">
</script>   

    <table id="dragTable" cellpadding="3"  style=" border:solid 0px green;width:98%;">

        <tr>

            <td valign="top" style="width:30%">

                <div class="dragDiv" id="dragDiv1" >

                    <table cellpadding="0" cellspacing="0" border="1" style="width:100%;border-collapse:collapse; border-color:Blue">

                        <tr id="titleBar1"  style="height:22px; text-align:left; background-color:#547BC9;color:White; padding:3px;cursor:move;">

                            <th align="left" unselectable="on" >Title1</th>

                        </tr>

                        <tr style="height:130px;padding:3px;" align="left" valign="top" >

                            <td unselectable="on">这里的字比较长....我来了....中国....中国...外国.，看一下有没有溢出></td> 

                        </tr>

                    </table>

                </div>               

                <div class="dragDiv" id="dragDiv2">

                    <table cellpadding="0" cellspacing="0" border="1" style="width:100%;border-collapse:collapse; border-color:Blue">

                        <tr id="titleBar2" style="height:22px; text-align:left; background-color:#547BC9;color:White; padding:3px;cursor:move;">

                            <th align="left" unselectable="on" >Title2</th>

                        </tr>

                        <tr style="height:130px;padding:3px;" align="left" valign="top" >

                            <td unselectable="on">Content2...</td> 

                        </tr>

                    </table>

                </div>

            </td>

            <td valign="top" style="width:50%">

                <div class="dragDiv" id="dragDiv3">

                    <table cellpadding="0" cellspacing="0" border="1" style="width:100%;border-collapse:collapse; border-color:Blue">

                        <tr id="titleBar3" style="height:22px; text-align:left; background-color:#547BC9;color:White; padding:3px;cursor:move;">

                            <th align="left" unselectable="on" >Title3</th>

                        </tr>

                        <tr style="height:230px;padding:3px;" align="left" valign="top" >

                            <td unselectable="on">Content3...</td> 

                        </tr>

                    </table>

                </div>                

            </td>

            <td valign="top" style="width:20%">

                <div class="dragDiv" id="dragDiv4">

                    <table cellpadding="0" cellspacing="0" border="1" style="width:100%;border-collapse:collapse; border-color:Blue">

                        <tr id="titleBar4" style="height:22px; text-align:left; background-color:#547BC9;color:White; padding:3px;cursor:move;">

                            <th align="left" unselectable="on" >Title4</th>

                        </tr>

                        <tr style="height:130px;padding:3px;" align="left" valign="top" >

                            <td unselectable="on">Content4...</td> 

                        </tr>

                    </table>

                </div>

                <div class="dragDiv" id="dragDiv5">

                    <table cellpadding="0" cellspacing="0" border="1" style="width:100%;border-collapse:collapse; border-color:Blue">

                        <tr id="titleBar5" style="height:22px; text-align:left; background-color:#547BC9;color:White; padding:3px;cursor:move;">

                            <th align="left" unselectable="on" >Title5</th>

                        </tr>

                        <tr style="height:130px;padding:3px;" align="left" valign="top" >

                            <td unselectable="on">Content5...</td> 

                        </tr>

                    </table>

                </div>

            </td>

        </tr>    

    </table>

</body>

</html>
<br><br><hr> 收集于互联网，只为兴趣与学习交流，不作商业用途。</font></p>

希望本文所述对大家的javascript程序设计有所帮助。

JS仿iGoogle自定义首页模块拖拽特效的方法

- Author -

代码家园

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

Javascript 相关文章推荐
javascript学习网址备忘
May 29 Javascript
firefox浏览器下javascript 拖动层效果与原理分析代码
Dec 04 Javascript
IE8 下的Js错误HTML Parsing Error...
Aug 14 Javascript
JS和jquery获取各种屏幕的宽度和高度的代码
Aug 02 Javascript
JS图像无缝滚动脚本非常好用
Feb 10 Javascript
js精美的幻灯片画集特效代码分享
Aug 29 Javascript
微信小程序 网络API发起请求详解
Nov 09 Javascript
详解Vue.js基于$.ajax获取数据并与组件的data绑定
May 26 Javascript
H5实现仿flash效果的实现代码
Sep 29 Javascript
Bootstrap popover 实现鼠标移入移除显示隐藏功能方法
Jan 24 Javascript
微信小程序缓存过期时间的使用详情
May 12 Javascript
javascript实现京东登录显示隐藏密码
Aug 02 Javascript
JS弹出可拖拽可关闭的div层完整实例
Feb 13 #Javascript
AngularJS表单编辑提交功能实例
Feb 13 #Javascript
javascript转换日期字符串为Date日期对象的方法
Feb 13 #Javascript
jQuery动态修改超链接地址的方法
Feb 13 #Javascript
jQuery实现contains方法不区分大小写的方法
Feb 13 #Javascript
javascript获取元素离文档各边距离的方法
Feb 13 #Javascript
jQuery点缩略图弹出层显示大图片
Feb 13 #Javascript
html5+(1) Post(1) 二维码(2) plus.io(1) Word(2) Get(1) 磁盘管理(1) 条码(1) 日志(1) 目录管理(1)
You might like
关于PHP中的Class的几点个人看法
2006/10/09 PHP
8个PHP程序员常用的功能汇总
2014/12/18 PHP
php+mysql实现无限级分类
2015/11/11 PHP
PHP中使用array函数新建一个数组
2015/11/19 PHP
PHP内核探索之解释器的执行过程
2015/12/22 PHP
PHP实现的mysql读写分离操作示例
2018/05/22 PHP
php设计模式之状态模式实例分析【星际争霸游戏案例】
2020/03/26 PHP
javascript 日期常用的方法
2009/11/11 Javascript
理解Javascript_07_理解instanceof实现原理
2010/10/15 Javascript
分享20多个很棒的jQuery 文件上传插件或教程
2011/09/04 Javascript
正则表达式搭配js轻松处理json文本方便而老古
2013/02/17 Javascript
javascript中解析四则运算表达式的算法和示例
2014/08/11 Javascript
创建js对象和js类的方法汇总
2014/12/24 Javascript
详解vue渲染从后台获取的json数据
2017/07/06 Javascript
JS/jQuery实现获取时间的方法及常用类完整示例
2019/03/07 jQuery
layui自定义工具栏的方法
2019/09/19 Javascript
vue实现二级导航栏效果
2019/10/19 Javascript
使用python将mdb数据库文件导入postgresql数据库示例
2014/02/17 Python
python生成指定尺寸缩略图的示例
2014/05/07 Python
详解使用Python处理文件目录的相关方法
2015/10/16 Python
python实现遍历文件夹修改文件后缀
2018/08/28 Python
Python 实现大整数乘法算法的示例代码
2019/09/17 Python
python 获取当前目录下的文件目录和文件名实例代码详解
2020/03/10 Python
Python调用shell cmd方法代码示例解析
2020/06/18 Python
解决python pandas读取excel中多个不同sheet表格存在的问题
2020/07/14 Python
python -v 报错问题的解决方法
2020/09/15 Python
Python基于staticmethod装饰器标示静态方法
2020/10/17 Python
HTML5 canvas绘制的玫瑰花效果
2014/05/29 HTML / CSS
PREMIUM-MALL法国：行李、箱包及配件在线
2019/05/30 全球购物
销售队伍口号
2014/06/11 职场文书
国企干部对照检查材料
2014/08/22 职场文书
纪念九一八事变演讲稿：忘记意味着背叛
2014/09/14 职场文书
校园广播稿100字
2014/10/06 职场文书
员工聘用合同范本
2015/09/21 职场文书
Apache压力测试工具的安装使用
2021/03/31 Servers
Apache SkyWalking 监控 MySQL Server 实战解析
2022/09/23 Servers