Firefox 扩展中的对象字面量

发布于 2024-10-04 02:56:47 字数 339 浏览 3 评论 0原文

我有一个扩展需要弹出一个窗口然后关闭它。

 var my_extension = {
    window: null,
    popup: function(){
       my_extension.window = window.open(...)
    },
    close: function(){
       my_extension.window.close()
    }
 }

弹出窗口调用关闭函数。但是，从打开返回后，my_extension.window 为空。我检查以确保它已在弹出窗口中设置。弹出窗口返回时是否创建了 my_extension 的另一个实例？

原文

I have an extension that needs to pop up a window and then close it.

 var my_extension = {
    window: null,
    popup: function(){
       my_extension.window = window.open(...)
    },
    close: function(){
       my_extension.window.close()
    }
 }

The popup calls the close function. However, after returning from the open, the my_extension.window is null. I check to make sure it is set in popup. Is another instance of my_extension created when the popup returns?

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浅浅 2024-10-11 02:56:47

my_extension 是在主浏览器窗口中定义的，而不是在弹出窗口中定义的。要从弹出窗口本身关闭弹出窗口，只需使用 window.close

编辑：好的，所以我猜 my_extension.close 实际上看起来像：

function() {
  // check input from popup window
  if (everythingIsGood) {
    my_extension.window.close()
  }
}

在这种情况下，我建议您在弹出窗口中进行验证本身。我知道，您不想在弹出窗口中放置大量代码。我同意。但是，当您打开弹出窗口时，您可以传入进行验证所需的任何信息（包括传递验证函数 - 请记住函数也是对象，因为 JavaScript 就是这么酷！）。在此页面上查找 window.arguments 的讨论：https: //developer.mozilla.org/en/DOM/window.openDialog

my_extension is defined in the main browser window, not in the popup. To close the popup from the popup itself, just use window.close

edit: ok, so I guess my_extension.close actually looks something like:

function() {
  // check input from popup window
  if (everythingIsGood) {
    my_extension.window.close()
  }
}

In that case, I would recommend you do that validation in the popup itself. I know, you don't want to put a lot of code in the popup window. And I agree. But you can pass in whatever information is necessary to do the validation (including passing a validation function -- remember that functions are objects too, because JavaScript is cool like that!) when you open the popup. Look for the discussion of window.arguments on this page: https://developer.mozilla.org/en/DOM/window.openDialog

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