javascript - To find topmost parent window from the child window

Question

I use web application

From my main application,I opened child window C1 and again opened another child window C2 from C1. If i close the the C1 window, I'm not able to find the top most main application.

Actually i wanted to redirect the Main application to different page if a hyperlink is clicked on the child window.This is working good until i close C1 which is a parent of C2

Any help is greatly appreciated

Answer 1

@Mey，如果没有看到您的代码的好处，就很难确定您的问题是什么。也就是说，window.top是对最顶层窗口的引用。所有主要浏览器似乎都支持它（请参阅此处）。

你是绝对正确的。这不适用于由window.open(). 这个解决方案怎么样：让打开窗口在打开的窗口上设置一个属性，以便在打开后立即跟踪最顶部的窗口。这样，如果任何中间窗口关闭，则打开的窗口已经具有对最顶层窗口的引用。让我告诉你我的意思。

从最顶部的窗口：

var c1 = window.open(...);
c1.window.topMost = window;

从第一个弹出窗口： c1

var c2 = window.open(...);
c2.window.topMost = window.topMost;

从第二个弹出窗口： c2

var c3 = window.open(...);
c3.window.topMost = window.topMost;

现在，假设您关闭c1or c2，c3仍然会引用window.topMost。