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HomeWeb Front-endJS TutorialFunction window.open closes all child windows

Function window.open closes all child windows

Sep 06, 2017 am 10:08 AM
window.openclosure

此文介绍了如何用window.open方法打开一个子窗口,当我们要关闭主窗口时,这时候所有的子窗口也会跟着关闭。下面有我的实现思路和代码,分享给大家。

实现思路:

1.打开子窗口函数window.open(url,winName)的第二个参数winName可以唯一标识打开的窗口。因此关闭子窗口只需要使用winName.close()函数即可。

2.一个页面可能有多个子窗口。因此需要一个数组存储所有子窗口对象。关闭时,遍历数组即可。

3.子窗口还可以再打开子窗口。无限循环下去。因此需要判断。

此需求可以通过两个方法实现。

调用子窗口的关闭函数。

此方法易于理解,但是实际实现过程中发现浏览器的关闭事件并没有。且需要是按钮点击关闭还是快捷键关闭,稍微麻烦一些、递归关闭子窗口

此方法实现简单,缺点就是所有的窗口存储子窗口的对象数组需同名

下面是使用递归关闭子窗口及子窗口的子窗口方法

function closeSonWindow(win){
  for(var index=0;index<win.length;index++){
    //如果窗口已关闭
    if(win[index].closed){
      continue;
    }
    //如果窗口没有可以打开的子窗口
    if(typeof(win[index].openedWindow)=="undefined"){
      win[index].close();
      continue;
    }
    if(win[index].openedWindow.length==0){
      win[index].close();
    }else{
      closeSonWindow(win[index].openedWindow);
      win[index].close();
    }
  }
}

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