在FireFox / Greasemonkey中使用JavaScript发送全局按键 [英] Send Global keystroke using JavaScript in FireFox/Greasemonkey

问题描述

我目前有一个GM脚本，捕捉按键，并以编程方式点击网页上的元素。但是，这只有在页面/标签具有焦点时才起作用。有没有什么办法从第二页/选项卡捕获击键，并将点击应用到第一页/选项卡上的元素？我知道我可以通过在JavaScript中打开它来获得对另一个窗口的引用。但是，如果在另一个域中，则无法访问该窗口中的元素。如果我不能使用Greasemonkey做到这一点，任何关于如何做到扩展而不是GM脚本的建议。真的，这个问题更多的是如何获得一个GM脚本中打开的标签/窗口的引用，或作为一个扩展。

以下是示例代码使用：
$ b $ pre $ function dispatchMouseEvent（target，event）{

var e = document.createEvent（ MouseEvents）;
e.initMouseEvent（event，true，true，window，0，0，0，0，false，false，false，0，null）;
target.dispatchEvent（e）;

};

function mouseClick（element）{

dispatchMouseEvent（element，'mouseover'）;
dispatchMouseEvent（element，'mousedown'）;
dispatchMouseEvent（element，'click'）;
dispatchMouseEvent（element，'mouseup'）;



解决方案

或Greasemonkey，设计。它曾经是一个巨大的安全漏洞。你必须写一个扩展（加载项）。

这里有一些附加资源，我发现它很有用：

• Mozilla扩展主页 li>
  
• 附加组件生成器 li>
  
• 在Firefox Extension School中永远不会告诉您的10件事


• 开发Firefox扩展 - 纸

I currently have a GM script that captures a keystroke and programmatically clicks an element on a webpage. However, this only works when the page/tab has focus. Is there any way to capture the keystroke from the second page/tab and apply the click to an element on the first page/tab? I know I can get a reference to another window by opening it in JavaScript. However, I can't access elements in that window if it is on another domain. If I cannot do this using Greasemonkey, any suggestions on how to accomplish it as an extension instead of a GM script. Really, this question is more how to get a reference to an open tab/window in a GM script, or as an extension.

Here is the sample code I'm working with:

function dispatchMouseEvent(target, event) {

  var e = document.createEvent("MouseEvents");
  e.initMouseEvent(event, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);  
  target.dispatchEvent(e);

};

function mouseClick(element) {

    dispatchMouseEvent(element, 'mouseover');
    dispatchMouseEvent(element, 'mousedown');
    dispatchMouseEvent(element, 'click');
    dispatchMouseEvent(element, 'mouseup');
}

解决方案

This cannot be done in JS or Greasemonkey, by design. It used to be a huge security hole. You'll have to write an extension (add-on).

Here are some add-on resources, I've found helpful:

• Mozilla extensions home page
• Add-on Builder
• 10 Things They Never Tell You In Firefox Extension School
• Developing Firefox Extensions – Paper

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