jQuery Prevent默认操作功能键(F3，F4等) [英] jQuery Prevent Default Action Function Keys (F3, F4, etc.)

问题描述

我在这里有一个非常基本的示例: http://jsfiddle.net/arhVd/1/

I have this extremely basic example here: http://jsfiddle.net/arhVd/1/

<form>
  <input type="text">
  <input type="submit">
</form>

$(function () {

    $(document).keydown(function(e) {

        e.preventDefault();

        $('form').submit();
    });
});

我想确保按F4时不执行内置的浏览器功能(在F4的情况下，将焦点设置为URL栏.或者F3显示查找"栏.)提交表单的功能仍然有效，我只是不希望浏览器功能受阻.

I want to ensure that when pressing F4 it does not do the built in browser function (in F4's case set focus to the URL bar. Or perhaps F3 showing the 'Find' bar.) The functionality of submitting the form still works, I just don't want the browser functionality getting in the way.

这是针对内部应用程序的，功能键应该可以在应用程序中具有热键.

This is for an internal app where the function keys are supposed to function has HotKeys in the app.

推荐答案

这似乎适用于IE8中的F3:

This seems to work for F3 in IE8:

$(document).keydown(function(event) {
  event.preventDefault();

  if (event.keyCode == 114) { // F3
    // Remap F3 to some other key that the browser doesn't care about
    event.originalEvent.keyCode = 0;
  }
};

(基于 http://www.fixya.com/support/t218276-disable_f3_function_key_from_intenet)

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