在Javascript中，如何重用先前由另一个页面打开的窗口

Question

I have a window which uses javascript to open another child window, in the standard window.open("http://foobar","name") manner. If I open again with the same name, it reuses the window. This is great and exactly what I want.

However, if the original window is closed, I would like to be able to reopen it and have its window.open go to the previously opened child window. Unfortunately, because it is a new parent window it will open another child window (which it will happily and correctly reuse).

Does anybody here know of a way to get hold of that previous child window so I can avoid making more windows than necessary?

Behind the scenes, the driver of this question is this: I have a java program which will periodically open different websites and I do not want to force a plethora of tabs or windows. Command-line options do not let you reuse windows or declare targets; javascript lets you declare a target. I figured I would write a small javascript page which opened a page in a specifically-named window and then close itself. Anytime you want to see a new page, hit that page passing in your new page.... Much to my dismay, though, targets seem specific to the window which creates them.

So if you have ideas which are relevant to my actual problem I'm interested too.

Answer 1

嵌入浏览器所花的时间少于尝试各种控制浏览器的时间。