JS仿iGoogle自定义首页模块拖拽效…
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<head>
<title>JS仿iGoogle自定义首页模块拖拽效果丨芯晴网页特效丨CsrCode.Cn</title>
<script type="text/javascript">
var Common = {
getEvent: function() {//ie/ff
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func = getEvent.caller;
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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();
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x: ev.pageX,
y: ev.pageY
};
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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.getElementByIdx_x(id) : id;
},
getViewportSize: { w: (windows.innerWidth) ? windows.innerWidth : (document.documentElement && document.documentElement.clientWidth) ? document.documentElement.clientWidth : (document.body?document.body.offsetWidth:0), h: (windows.innerHeight) ? windows.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;
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var arr = parentObj.getElementsByTagName_r(tagName);
return arr[0];
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lastChild: function(parentObj, tagName) {
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return parentObj.lastChild;
}
else {
var arr = parentObj.getElementsByTagName_r(tagName);
return arr[arr.length - 1];
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},
setCookie: function(name, value) {
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getCookie: function(name) {
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exp.setTime(exp.getTime() - 1);
var cval = this.getCookie(name);
if (cval != null) document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
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}
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.getElementByIdx_x("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_r("DIV").length; k++) {
if (dragDiv.id == dragTbl.rows[0].cells[c].getElementsByTagName_r("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_x("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.a(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.getElementByIdx_x(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.a(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_r("div").length == 0) {
dashedElement.style.width = dragTbl.rows[0].cells[j].offsetWidth - 2 * parseInt(dashedElement.style.borderWidth) + "px";
dragTbl.rows[0].cells[j].a(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].a(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_r("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.getElementByIdx_x("dragTable");
var tmpDiv, tmpPos;
for (i = 0; i < dragTbl.getElementsByTagName_r("div").length; i++) {
tmpDiv = dragTbl.getElementsByTagName_r("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.getElementByIdx_x("dragTable");
if (Common.getCookie("configArr")) {
var configArr = eval_r("(" + 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].a(document.getElementByIdx_x(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.getElementByIdx_x("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_r("DIV").length; j++) {
tmpStr += (tmpStr == "" ? "" : ",") + "'" + dragTbl.rows[0].cells[i].getElementsByTagName_r("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>
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