JavaScript – Greasemonkey的工作原理

我读了2005年写的“ Dive into Greasemonkey”( Mark Pilgrim).它提到Greasemonkey将用户脚本包装在匿名函数包装器中. Greasemonkey是否将包装器插入源JavaScript代码或将其添加为任何事件处理程序,如window.onload？

解决方法

Does Greasemonkey insert the wrapper
into the source JavaScript code or add
it as any event handler such as
window.onload?

GM侦听DOMContentLoaded事件(基本上是DOM Ready)here.然后包装用户脚本代码并将其插入沙箱here.