windows 如何将已经存在的打开窗口从另一个窗口代码带到其他窗口的前面？
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How do I bring an already existing open window to the front on top of other windows from another windows code?
提问by user268249
The question was fairly descriptive but I'll describe it further.
这个问题相当具有描述性，但我会进一步描述它。
Basically, I have window1. Clicking a button link opens window2. Clicking a button in window2opens window3, clicking a button in window3should bring window2back to the front of the screen on top of window2.
基本上，我有window1。单击按钮链接将打开window2。点击一个按钮window2打开window3，点击一个按钮window3应该带window2回到屏幕的前面window2。
I'm not sure how this is exactly done, however I have used and played around with focus(), opener and other various methods and I cannot seem to get it to work properly.
我不确定这究竟是如何完成的，但是我已经使用并尝试了 focus()、opener 和其他各种方法，但我似乎无法让它正常工作。
回答by bobince
Update: This hasn't worked since Chrome (21+). The workaround is to close/reopen.
更新：自 Chrome（21 岁以上）起此方法无效。解决方法是关闭/重新打开。
opener.focus()
does work. If it doesn't for you, we'll need a test case.
确实有效。如果它不适合您，我们将需要一个测试用例。
Some things that might cause problems: calling it in an event handler that fires beforethe button's window gets focus due to the click (but I don't think that'd usually be the case); running it on a browser that stuffs pop-ups into browser tabs instead.
一些可能会导致问题的事情：在按钮窗口因点击而获得焦点之前触发的事件处理程序中调用它（但我认为通常情况并非如此）；在浏览器上运行它，而不是将弹出窗口填充到浏览器选项卡中。
(I agree with Max's comment. Pop-ups with cross-window scripting are generally best avoided.)
（我同意 Max 的评论。通常最好避免使用跨窗口脚本的弹出窗口。）
回答by brahn
Update: This hasn't worked since Chrome (21+). The workaround is to close/reopen.
更新：自 Chrome（21 岁以上）起此方法无效。解决方法是关闭/重新打开。
The following code works for me on Firefox (Mac & Windows), Safari (Mac & Windows), and IE8 (Windows, of course). I haven't tested IE6 or IE7.
以下代码适用于 Firefox（Mac 和 Windows）、Safari（Mac 和 Windows）和 IE8（当然是 Windows）。我还没有测试过 IE6 或 IE7。
However, it does notwork on Chrome for either Mac or Windows. Specifically, clicking the button once creates the pop-up and brings it to the front. However, returning to the original window and clicking the button again does not refocus the popup.
但是，它并没有在Chrome浏览器无论是Mac或Windows工作。具体来说，单击按钮一次会创建弹出窗口并将其置于最前面。但是，返回到原始窗口并再次单击该按钮不会重新聚焦弹出窗口。
<head>
<script type="text/javascript">
var popupWindow = null;
var doPopup = function () {
if (popupWindow && !popupWindow.closed) {
popupWindow.focus();
} else {
popupWindow = window.open("http://google.com", "_blank",
"width=200,height=200");
}
};
</script>
</head>
<body>
<button onclick="doPopup(); return false">
create a pop-up
</button>
</body>
