是否有脚本模拟控件的按键顺序? [英] Have a script simulate a control, keypress sequence?

问题描述

我已经搜索并发现我可以使用jQuery模拟按键事件，但是我对jQuery的了解很差，我没有得到确切的结果.

I've searched and discovered that I can simulate a keypress event using jQuery, but my knowledge about jQuery is poor and I didn't get how exactly.

所以我有一个Greasemonkey脚本，可以在2个标签中管理2个不同的网页.
我想模拟/自动执行 Ctrl Shift Tab 自动返回到上一个选项卡，这样我可以更改Firefox.

So I have a Greasemonkey script which manages 2 different webpages in 2 tabs.
I'd like to simulate/auto-execute CtrlShiftTab to go back to the previous tab automatically, this way I could change tabs in Firefox.

问题在于它不仅是简单的按键，我还需要模拟 Ctrl 和 Shift 部分.

The problem is that it's not only a plain keypress, I need to simulate a Ctrl and Shift parts too.

我已将其添加到脚本中:

I've added this to my script:

// @require        http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js

并尝试:

function testEvents(){
var press = jQuery.Event("keypress");
press.which = 9;
$("whatever").trigger(press.ctrlKey + press.shiftKey + press.which);

}

没有成功.

我看过的一些链接: 是否可以通过编程方式模拟按键事件?， 模拟jquery ，然后 http://forum.jquery.com/topic/simulating-keypress-events

Some links I've seen: Is it possible to simulate key press events programmatically?, simulate jquery, and http://forum.jquery.com/topic/simulating-keypress-events

推荐答案

JavaScript无法通过模拟快捷键"按键事件来触发默认行为.

JavaScript cannot be used to trigger a default behavior by simulating "shortcut" key events.

由于jQuery是编写JavaScript代码的另一种方式，因此该限制也适用.
而且，由于Greasemonkey脚本基于JavaScript，除了GM_*方法之外没有其他功能，因此无法编写用于切换选项卡的User脚本.

Since jQuery is just a different way to write JavaScript code, the restriction also applies.
And, because Greasemonkey scripts are based on JavaScript, without extra functionality besides the GM_* methods, it is not possible to write a User script which switches tabs.

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