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
js中设置元素class的三种方法小结
Aug 28 Javascript
javascript中兼容主流浏览器的动态生成iframe方法
May 05 Javascript
Js中使用hasOwnProperty方法检索ajax响应对象的例子
Dec 08 Javascript
node.js中的path.isAbsolute方法使用说明
Dec 08 Javascript
JavaScript实现自动变换表格边框颜色
May 08 Javascript
详解 javascript中offsetleft属性的用法
Nov 11 Javascript
基于Bootstrap重置输入框内容按钮插件
May 12 Javascript
JSON 必知必会 观后记
Oct 27 Javascript
详解获取jq ul第一个li定位的四种解决方案
Nov 23 Javascript
EasyUI折叠表格层次显示detailview详解及实例
Dec 28 Javascript
three.js 入门案例详解
Jan 23 Javascript
js前端对于大量数据的展示方式及处理方法
Dec 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
寄语(276) 制度(225) 证明书(326) 教学反思(909) 计划书(118) 感言(394) 接收函(23) 评语(336) 方案(1080) 答谢词(97)
You might like
php不使用copy()函数复制文件的方法
2015/03/13 PHP
php gd等比例缩放压缩图片函数
2016/06/12 PHP
php中钩子(hook)的原理与简单应用demo示例
2019/09/03 PHP
[推荐]javascript 面向对象技术基础教程
2009/03/03 Javascript
javascript 打印内容方法小结
2009/11/04 Javascript
jQuery 获取对象 根据属性、内容匹配, 还有表单元素匹配
2010/05/31 Javascript
jquery必须知道的一些常用特效方法及使用示例(整理)
2013/06/24 Javascript
js如何判断不同系统的浏览器类型
2013/10/28 Javascript
JS实现定时页面弹出类似QQ新闻的提示框
2013/11/07 Javascript
jquery实现个人中心导航菜单效果和美观都非常不错
2014/09/02 Javascript
JS 实现列表与多选框选择附预览动画
2014/10/29 Javascript
基于jQuery实现下拉框
2014/11/24 Javascript
Jquery幻灯片特效代码分享--鼠标点击按钮时切换（1）
2015/08/15 Javascript
浅谈javascript的Array.prototype.slice.call
2015/08/31 Javascript
浅析javascript的return语句
2015/12/15 Javascript
javascript自定义滚动条实现代码
2020/04/20 Javascript
js实现瀑布流效果（自动生成新的内容）
2017/03/16 Javascript
AngularJS实现表格的增删改查（仅限前端）
2017/07/04 Javascript
30分钟快速入门掌握ES6/ES2015的核心内容（上）
2018/04/18 Javascript
nodejs微信开发之自动回复的实现
2019/03/17 NodeJs
json_decode 索引为数字时自动排序问题解决方法
2020/03/28 Javascript
原生JS运动实现轮播图
2021/01/02 Javascript
Vue 集成 PDF.js 实现 PDF 预览和添加水印的步骤
2021/01/22 Vue.js
Python的Flask框架应用调用Redis队列数据的方法
2016/06/06 Python
python的exec、eval使用分析
2017/12/11 Python
Python学习工具jupyter notebook安装及用法解析
2020/10/23 Python
澳大利亚百货公司：David Jones
2018/02/08 全球购物
80后职场人的职业生涯规划
2014/03/08 职场文书
小学节能减排倡议书
2014/05/15 职场文书
项目经理任命书
2014/06/04 职场文书
模具专业求职信
2014/06/26 职场文书
药品营销专业毕业生自荐信
2014/07/02 职场文书
单位委托书怎么写
2014/08/02 职场文书
2016年安全月活动总结
2016/04/06 职场文书
如何开启Apache，Nginx和IIS服务器的GZIP压缩功能
2022/04/29 Servers
ConditionalOnProperty配置swagger不生效问题及解决
2022/06/14 Java/Android