gpt4 book ai didi

javascript - 用户输入的 Chrome 动态 div 高度

转载 作者:行者123 更新时间:2023-11-28 02:47:32 26 4
gpt4 key购买 nike

我发现(未编写)一段可调整大小的 div 代码,它在 Firefox 和 IE 中工作得很好,但在 Chrome 中很难扩展——如果您尝试拉伸(stretch)它,它通常会忽略您。我什至不确定这是为什么——很难排除故障。

任何关于为什么 chrome 经常拒绝扩展这个 div 的提示都会很好。自己尝试一下。

#mydiv{
position:relative;
top:0px;
left:0px;
width:250px;
border: 1px solid #808080;
overflow: auto;
}

#statusbar{
cursor: s-resize;
position:relative;
display:block;
background-color: #c0c0c0;
font-size: 0px;
margin:0;
height:5px;
border: 1px solid #808080;
padding:0;
width: 250px;
}

脚本:

var curHeight=0;
var curMousePos=0;
var mouseStatus='up';
var curEvent;

//this function gets the original div height
function setPos(e){
curEvent=(typeof event=='undefined'?e:event);
mouseStatus='down';
//gets position of click
curMousePos=curEvent.clientY;
curHeight=parseInt(document.getElementById('mydiv').style.height.split('p')[0]);
}

//this changes the height of the div while the mouse button is depressed
function getPos(e){
if(mouseStatus=='down'){
curEvent=(typeof event=='undefined'?e:event);
//how many px to update the div? difference of previous and current positions
var pxMove=parseInt(curEvent.clientY-curMousePos);
var newHeight=parseInt(curHeight+pxMove);
//conditional to set minimum height to 5
newHeight=(newHeight<5?5:newHeight);
//set the new height of the div

document.getElementById('mydiv').style.height=newHeight+'px';
}
}

最后是 HTML:

    <div>
<div id="mydiv" style="height: 250px; min-height:150px; ">
<div></div>
</div>
<div onmousedown="setPos(event)" onmouseup="mouseStatus='up'" id="statusbar"></div>
</div>

编辑:似乎 chrome 支持 CSS3 属性 RESIZE。这太棒了,完全比我使用的 JS 方法更好。不过,我希望上面的代码能像在 FF/IE 上一样在 chrome 上运行,这样我就不必检查浏览器类型。

最佳答案

enter image description here

<!doctype html>

<html>
<head>
<script>
window.onload = function () {
var div = document.getElementById ("statusBar");

var press = false;

div.onmousedown = function () {
press = true;

return false;
}

this.onmousemove = function (event) {
event = event ? event : window.event;

if (press === true) {
div.style.height = event.clientY + "px";
}
}

this.onmouseup = function () {
press = false;
}
}
</script>

<style>
#statusBar {
background-color: #c0c0c0;
border: 1px solid #808080;
cursor: s-resize;
margin: 0;
min-height: 5px;
padding: 0;
width: 250px;
}
</style>

<title></title>
</head>

<body>
<div id = "statusBar"></div>
</body>
</html>

关于javascript - 用户输入的 Chrome 动态 div 高度,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4542428/

26 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com