用Java检查子窗口焦点 [英] Check Child Window Focus in Javascript
本文介绍了用Java检查子窗口焦点的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想知道用户是否关注http或https.
I want to know if the user has focus on the http or https.
因此，每次用户单击其中一个子窗口时-我想知道哪个是活动"窗口.
So everytime the user clicks on one of the childwindows - i want to know which one is "active".
我检查了W3C.页面可见性API
I checked the W3C. The Page Visibility API
但是对我来说，它仅适用于选项卡，而不适用于Windows.
But for me it only was working with tabs but not windows.
并且仅在父窗口中进行了测试.
有帮助吗?
谢谢.
这就是我得到的.
<html>
<head>
<title>checkfocus</title>
</head>
<body>
<a href="javascript:loadChild()">Click me</a>.
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script type="text/javascript">
var w;
var w2;
function loadChild() {
w = window.open("","",'width=400,height=200');
w.location.href="https://www.facebook.com";
w.moveTo(0,0)
w.addEventListener('focus',function(){
console.log("w")
})
w2 = window.open("","",'width=400,height=200');
w2.moveTo(400,0)
w2.location.href="http://www.facebook.com";
w2.addEventListener('focus',function(){
console.log("w2")
})
}
</script>
</body>
</html>
打开窗口并设置一次位置后，事件会在Chrome中触发2次.href已设置...但此后什么都没有
the Events is fired 2 times in chrome one time when the window is opened and one time location.href is set... but nothing afterwards
推荐答案
尝试将代码放入div，将div放入表格中，然后将表格放在顶部框架中！！
try to put the code in a div, put the div in a table and put the table in a top-frame...!
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