如何在textarea中使用keydown事件? [英] How to use keydown event in textarea?
问题描述
我不习惯使用javascript,但我厌倦了在工作中手动重复尝试。当我在论坛中写作时,我需要一个快速的短命令,比如Ctrl-Alt-z,将一些文本插入到textarea对象中。
I am not very used to using javascript but I have gotten sick of manually repeating a tast at work. When I write in a discussion forum I need a quick short command, like Ctrl-Alt-z, to insert some text into a textarea object.
我已经写了一个在文本光标insertAtCursor(text)处插入文本的函数。 textarea的ID是content。
I have already written a function that inserts the text at the text cursor insertAtCursor(text). The ID of the textarea is "content".
我知道如何解决检查组合键的问题。我的问题基本上是检查任何键盘输入。
I know how to solve the problem of checking for key combinations. The problem I have is basically to check for any keyboard input at all.
我尝试过以下方法:
document.keydown(function(event){
alert("Test");
});
然而,它不起作用。
提前致谢!
推荐答案
如果您正在寻找跨浏览器,我认为您将度过难关解决方案。以下是帮助您的方法: http://www.quirksmode.org/dom/events/keys .html
I think you're going to have a tough time if you're looking for cross-browser solutions. Here's something to help you: http://www.quirksmode.org/dom/events/keys.html
基本上,你需要这样的东西:
Basically, you'd want something like this:
document.getElementById('content').addEventListener('keydown', function (e){
// Do your key combination detection
}, false);
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