js实现由分隔栏决定两侧div的大小—js动态分割div
/*================index.html===================*/
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta http-equiv="Content-Type" charset="text/html; utf-8"/>
<meta charset="utf-8">
<title>wind</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<meta name="renderer" content="webkit"/>
<meta name="viewport" content="initial-scale=1, maximum-scale=3, minimum-scale=1, user-scalable=no"/>
<meta name="author" content="wind"/>
<meta name="robots" content="index,follow"/>
<meta name="keywords" content=""/>
<meta name="description" content=""/>
<link rel="stylesheet" href="20161020.css">
<script src="20161020.js"></script>
</head>
<body>
<div class="hj_bootstrap_div">
<div class="hj_re_div1">11111</div>
<div class="hj_re_div"></div>
<div class="hj_re_div1">2222222</div>
</div>
<div class="hj_bootstrap_div">
<div class="hj_re_div1">11111</div>
<div class="hj_re_div"></div>
<div class="hj_re_div1">2222222</div>
<div class="hj_re_div"></div>
<div class="hj_re_div1">333333</div>
</div>
<div class="hj_bootstrap_div">
<div class="hj_re_div1">11111</div>
<div class="hj_re_div"></div>
<div class="hj_re_div1">2222222</div>
<div class="hj_re_div"></div>
<div class="hj_re_div1">333333</div>
<div class="hj_re_div"></div>
<div class="hj_re_div1">44444</div>
</div>
</body>
</html>
/*================20161020.css===================*/
.hj_bootstrap_div{
width:100%;
height:200px;
border:1px solid #ccc;
margin:10px;
}
.hj_bootstrap_div .hj_re_div1{
width:300px;
height:100%;
float:left;
border:1px solid #ccc;
overflow: hidden;
}
.hj_re_div{
width:3px;
height:100%;
float:left;
border:2px solid #fff;
background-color:#ccc;
}
/*================20161020.js===================*/
document.onmousedown = hj_doDown;
document.onmouseup = hj_doUp;
document.onmousemove = hj_doMove;
//定义一个指针对象
var theobject = null;
//定义一个对象
function ElasticFrame(){
this.el = null;
this.dir = "";
this.grabx = null;
this.graby = null;
this.width = null;
this.height = null;
this.left = null;
this.top = null;
}
/**
*鼠标按下事件
*/
function hj_doDown(event){
event = event || window.event;//兼容火狐
var el1 = getReal(event.srcElement ? event.srcElement : event.target, "className", "hj_re_div");
var nml=9;
if (el1 == null) {
theobject = null;
return;
}
dir = getDirection(el1,event);
if (dir == "") return;
theobject = new ElasticFrame();
theobject.el = el1;
theobject.dir = dir;
theobject.grabx = event.clientX;
theobject.graby = event.clientY;
theobject.width = el1.offsetWidth;
theobject.left = el1.offsetLeft;
theobject.top = el1.offsetTop;
event.returnValue = false;
event.cancelBubble = true;
}
/**
*鼠标松开事件
*/
function hj_doUp(){
if (theobject != null) {
theobject = null;
}
}
/**
*鼠标移动事件
*
*/
function hj_doMove(event){
var xPos, yPos, str ,xMin;
event = event || window.event;
var el1 = getReal(event.srcElement ? event.srcElement : event.target, "className", "hj_re_div");
var next_width = 0;
var previous_width = 0;
xMin = 8;
//console.log(el1);
if (el1.className == "hj_re_div") {
var str = getDirection(el1,event);
if (str == ""){
str = "default";
}else{
str += "-resize";
}
el1.style.cursor = str;
//兼容IE
if ((navigator.userAgent.indexOf('MSIE') >= 0) && (navigator.userAgent.indexOf('Opera') < 0)){
next_width=el1.nextElementSibling.offsetWidth - 2;//右边的宽度
previous_width =el1.previousElementSibling.offsetWidth - 2;
}else{
next_width=el1.nextSibling.nextElementSibling.offsetWidth - 2;//右边的宽度
previous_width =el1.previousSibling.previousElementSibling.offsetWidth -2;
}
}
if(theobject != null) {
var movingDistance1 =event.clientX - theobject.grabx;
if (dir.indexOf("col") != -1){
var num1 = Number(event.clientX);
var num2 = Number(theobject.grabx);
if(num1 > num2){
if(next_width < 20){
}else{
theobject.grabx = event.clientX;
//兼容IE
if ((navigator.userAgent.indexOf('MSIE') >= 0) && (navigator.userAgent.indexOf('Opera') < 0)){
el1.previousElementSibling.style.width = Math.max(xMin,previous_width + movingDistance1)+ "px";
el1.nextElementSibling.style.width = Math.max(xMin, next_width- movingDistance1) + "px";
}else{
el1.previousSibling.previousElementSibling.style.width = Math.max(xMin,previous_width + movingDistance1)+ "px";
el1.nextSibling.nextElementSibling.style.width = Math.max(xMin, next_width- movingDistance1) + "px";
}
}
}else if(num1 <= num2){
if(previous_width < 20){
}else{
theobject.grabx =event.clientX;
//兼容IE
if ((navigator.userAgent.indexOf('MSIE') >= 0) && (navigator.userAgent.indexOf('Opera') < 0)){
el1.previousElementSibling.style.width = Math.max(xMin,previous_width + movingDistance1) + "px";
el1.nextElementSibling.style.width = Math.max(xMin,next_width - movingDistance1) + "px";
}else{
el1.previousSibling.previousElementSibling.style.width = Math.max(xMin,previous_width + movingDistance1) + "px";
el1.nextSibling.nextElementSibling.style.width = Math.max(xMin,next_width - movingDistance1) + "px";
}
}
}
}
event.returnValue = false;
event.cancelBubble = true;
}
}
/**
*获取检测对象
*/
function getReal(el, type, value) {
var temp = el;
while ((temp != null) && (temp.tagName != "BODY")) {
if (eval("temp." + type) == value) {
el = temp;
return el;
}
temp = temp.parentElement;
}
return el;
}
/**
*获取鼠标形状
*
*/
function getDirection(el,event){
event = event || window.event;
var xPos, yPos, offset, dir;
dir = "";
xPos = event.offsetX;
offset = 9900000;
if (xPos > el.offsetWidth-offset){
dir += "col";
}
return dir;
}
演示地址：http://www.vfkjsd.cn/div/index1.html
