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拖动改变层大小脚本

稿源：互联网 2022-06-22 18:55:37 点击： 1048 撤稿纠错

通过鼠标拖动来改变层的大小，可任意拖动。

以下讨论的是和相关的拖动改变层大小脚本教程文章，内容是本站精心挑选整理的教程，希望对广大的网友给到帮助,下面是详细内容：

脚本代码(For Alixixi.com)如下:

<html>
<head>
<meta name="keywords" content="站长,网页特效,js特效,广告代码,zzjs,zzjs.net,sky,www.zzjs.net,站长特效 网" />
<meta name="description" content="www.zzjs.net,站长特效网，站长必备js特效及广告代码。大量高质量js特效，提供高质量广告代码下载,尽在站长特效网" />
<title>改变层大小的js脚本，sky整理收集。</title>
<meta content="text/html; charset=gb2312" http-equiv="Content-Type">
<style> {
	box-sizing: border-box; moz-box-sizing: border-box
}
#testDiv     { background-color: buttonface; background-repeat: repeat;
               background-attachment: scroll; color: #3969A5; height: 300px;
               left: 30px; overflow: hidden; width: 500; z-index: 2;
               border: 2px outset white; margin: 0px; padding: 2px;
               background-position: 0% 50% }
body         { font-family: Verdana; font-size: 9pt }
#innerNice   { background-color: white; background-repeat: repeat; background-attachment:
               scroll; color: #3969A5; height: 100%; overflow: auto; width:
               100%; border: 2px inset white; padding: 8px;
               background-position: 0% 50% }
</style>
<SCRIPT language=javascript>
/////////////////////////////////////////////////////////////////////////
// Generic Resize by Erik Arvidsson                                    //
//                                                                     //
// You may use this script as long as this disclaimer is remained.     //
// See www.dtek.chalmers.se/~d96erik/dhtml/ for mor info               //
//                                                                     //
// How to use this script!                                             //
// Link the script in the HEAD and create a container (DIV, preferable //
// absolute positioned) and add the class="resizeMe" to it.            //
/////////////////////////////////////////////////////////////////////////
var theobject = null; //This gets a value as soon as a resize start
function resizeObject() {
	this.el        = null; //pointer to the object
	this.dir    = "";      //type of current resize (n, s, e, w, ne, nw, se, sw)
	this.grabx = null;     //Some useful values
	this.graby = null;
	this.width = null;
	this.height = null;
	this.left = null;
	this.top = null;
}
//Find out what kind of resize! Return a string inlcluding the directions
function getDirection(el) {
	var xPos, yPos, offset, dir;
	dir = "";
	xPos = window.event.offsetX;
	yPos = window.event.offsetY;
	offset = 8; //The distance from the edge in pixels
	if (yPos<offset) dir += "n";
	else if (yPos > el.offsetHeight-offset) dir += "s";
	if (xPos<offset) dir += "w";
	else if (xPos > el.offsetWidth-offset) dir += "e";
	return dir;
}
function doDown() {
	var el = getReal(event.srcElement, "className", "resizeMe");
	if (el == null) {
		theobject = null;
		return;
	}
	dir = getDirection(el);
	if (dir == "") return;
	theobject = new resizeObject();
	theobject.el = el;
	theobject.dir = dir;
	theobject.grabx = window.event.clientX;
	theobject.graby = window.event.clientY;
	theobject.width = el.offsetWidth;
	theobject.height = el.offsetHeight;
	theobject.left = el.offsetLeft;
	theobject.top = el.offsetTop;
	window.event.returnValue = false;
	window.event.cancelBubble = true;
}
function doUp() {
	if (theobject != null) {
		theobject = null;
	}
}
function doMove() {
	var el, xPos, yPos, str, xMin, yMin;
	xMin = 8; //The smallest width possible
	yMin = 8; //             height
	el = getReal(event.srcElement, "className", "resizeMe");
	if (el.className == "resizeMe") {
		str = getDirection(el);
	//Fix the cursor
		if (str == "") str = "default";
		else str += "-resize";
		el.style.cursor = str;
	}
//欢迎来到站长特效网，我们的网址是www.zzjs.net，很好记，zz站长，js就是js特效，本站收集大量高质量js代码，还有许多广告代码下载。
//Dragging starts here
	if(theobject != null) {
		if (dir.indexOf("e") != -1)
			theobject.el.style.width = Math.max(xMin, theobject.width + window.event.clientX - theobject.grabx) + "px";
		if (dir.indexOf("s") != -1)
			theobject.el.style.height = Math.max(yMin, theobject.height + window.event.clientY - theobject.graby) + "px";
		if (dir.indexOf("w") != -1) {
			theobject.el.style.left = Math.min(theobject.left + window.event.clientX - theobject.grabx, theobject.left + theobject.width - xMin) + "px";
			theobject.el.style.width = Math.max(xMin, theobject.width - window.event.clientX + theobject.grabx) + "px";
		}
		if (dir.indexOf("n") != -1) {
			theobject.el.style.top = Math.min(theobject.top + window.event.clientY - theobject.graby, theobject.top + theobject.height - yMin) + "px";
			theobject.el.style.height = Math.max(yMin, theobject.height - window.event.clientY + theobject.graby) + "px";
		}
		window.event.returnValue = false;
		window.event.cancelBubble = true;
	}
}
function getReal(el, type, value) {
	temp = el;
	while ((temp != null) && (temp.tagName != "BODY")) {
		if (eval("temp." + type) == value) {
			el = temp;
			return el;
		}
		temp = temp.parentElement;
	}
	return el;
}
//欢迎来到站长特效网，我们的网址是www.zzjs.net，很好记，zz站长，js就是js特效，本站收集大量高质量js代码，还有许多广告代码下载。
document.onmousedown = doDown;
document.onmouseup   = doUp;
document.onmousemove = doMove;
</SCRIPT>
<meta content="Microsoft FrontPage 4.0" name="GENERATOR">
<meta name="ProgId" content="FrontPage.Editor.Document">
</head>
<body>
<a href="<#ZC_BLOG_HOST#>">站长特效网</a>,站长必备的高质量网页特效和广告代码。zzjs.net，站长js特效。<hr>

<div class="resizeMe" id="testDiv">
  <div id="innerNice">
    <p align="center">　
    <p align="center">
sky提示您：请在边框处拖动鼠标
  </div>
</div>
</body>
</html>

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