javascript：父窗口如何知道其子窗口已关闭？
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javascript: How Can a parent window know that its child window closed?
提问by Vin
I want to execute a function when an opened child window is closed. Child window opening code is:
我想在打开的子窗口关闭时执行一个函数。子窗口开启代码为：
outWin = window.open (pageURL, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=600, height=400, top=100, left=100);
i want to call a javascript function written in parent window.I am using YUI-2 for developing the plugin. How can i make it work? what event should be registered?
我想调用在父窗口中编写的 javascript 函数。我正在使用 YUI-2 来开发插件。我怎样才能让它工作？应该注册什么事件？
thanks in advance.
提前致谢。
回答by Mark Coleman
You could do something like this.
你可以做这样的事情。
var intervalID, childWindow;
childWindow = window.open("http://www.google.com");
function checkWindow() {
if (childWindow && childWindow.closed) {
window.clearInterval(intervalID);
alert('closed');
}
}
var intervalID = window.setInterval(checkWindow, 500);
References: window.setIntervaland this answer.
参考资料：window.setInterval和这个答案。
Simple example on jsfiddle.
jsfiddle上的简单示例。
回答by JeanK
You can try acces the parent window by:
您可以通过以下方式尝试访问父窗口：
window.opener.functionThatYouWant();
This code is inside de child window.
此代码位于子窗口内。
But if you open an window that the URL is in another domain (not localhost), you can't access it because of security issues.
但是，如果您打开一个窗口，表明该 URL 位于另一个域（不是 localhost）中，则由于安全问题，您将无法访问它。
I used this code on Firefox, I am not sure if it works crossbrowser.
我在 Firefox 上使用了这段代码，我不确定它是否适用于跨浏览器。
