鼠标位置 - 跨浏览器兼容性 - Javascript [英] Mouse position - Cross browser compatibility - Javascript
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问题描述
在Javascript中使用鼠标我偶尔会遇到以下事件属性:
- clientX,clientY
- layerX,layerY
- offsetX,offsetY
- pageX,pageY
- screenX,screenY
- x, y
我想知道他们的跨浏览器兼容性一般是什么样的,因为我只发现了比特和我试图修补的信息。
谢谢你们
解决方案
以下是jQuery的用法:
//计算pageX / Y(如果缺少)和clientX / Y可用
if(event.pageX == null&& event.clientX!= null){
var doc = document.documentElement,body = document.body;
event.pageX = event.clientX +(doc&& doc.scrollLeft || body&& body.scrollLeft || 0) - (doc&& doc.clientLeft || body& & body.clientLeft || 0);
event.pageY = event.clientY +(doc&& doc.scrollTop || body&& body.scrollTop || 0) - (doc&& doc.clientTop || body& & body.clientTop || 0);
}
测试pageX(或pageY)或从clientX和scrollLeft和clientLeft计算它/ p>
working with the mouse within Javascript I have occasionally met the following event attributes:
- clientX, clientY
- layerX, layerY
- offsetX, offsetY
- pageX, pageY
- screenX, screenY
- x, y
I'm wondering what their cross-browser compatibility looks like in general, as I have only found bits and pieces of info that I'm trying to patch up together.
Thanks guys
解决方案
Here is how jQuery does it :
// Calculate pageX/Y if missing and clientX/Y available
if ( event.pageX == null && event.clientX != null ) {
var doc = document.documentElement, body = document.body;
event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
}
Testing pageX (or pageY) or calculating it from clientX and scrollLeft ans clientLeft
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