用户按Enter键时如何触发Tab [英] How to trigger a Tab when user presses Enter

问题描述

我从这里得到了代码 jquery如何捕捉输入密钥并将事件更改为标签

(function($) {
    $.fn.enterAsTab = function(options) {
        var settings = $.extend({
            'allowSubmit': false
        }, options);
        this.find('input, select, textarea, button').live("keypress", {localSettings: settings}, function(event) {
            if (settings.allowSubmit) {
                var type = $(this).attr("type");
                if (type == "submit") {
                    return true;
                }
            }
            if (event.keyCode == 13) {
                var inputs = $(this).parents("form").eq(0).find(":input:visible:not(disabled):not([readonly])");
                var idx = inputs.index(this);
                if (idx == inputs.length - 1) {
                    idx = -1;
                } else {
                    inputs[idx + 1].focus(); // handles submit buttons
                }
                try {
                    inputs[idx + 1].select();
                }
                catch (err) {
                    // handle objects not offering select
                }
                return false;
            }
        });
        return this;
    };
})(jQuery);

我的问题是：

1. 我希望这个脚本也适用于select（下拉列表），textarea，按钮[不带type = submit]。它在textarea上工作得很好，按钮[不是类型=提交]但它不能用于选择（下拉列表）。

1. I want this script also work on select (dropdown), textarea, button[not with type=submit]. It is working great on textarea, and buttons[not with type=submit] but it is not working with select(dropdown).

我发现这个传递禁用的输入时，脚本无法移动到下一个输入。例如，我有三个输入，qty，qtyConv和备忘录。所有这些都是文本字段，但qtyConv被禁用。当我在数量上并按下回车键时，我无法转到备忘录。

I found out that this script failed to move to next input when passing a disabled input. For example I have three input, qty, qtyConv and memo. all of them are textfields, but qtyConv is disabled. When I am in qty and I press enter, I could not move to memo.

任何有助于改进此脚本的帮助满足我的要求？

Any help to improve this script to meet my requirements?

提前谢谢。

Daniel

推荐答案

一些事情 -

1. 选择器使用错误。在查找未禁用的选择器方面定义的选择器是错误的，请使用此选项 -

1. Selector being used is wrong. The selector defined is wrong in terms of looking for the not disabled ones, use this one instead -

$(this).parents("form").eq(0).find(":input:visible:not(:disabled):not([readonly])"); 

Firefox 29.0 有关于按键的错误选择输入，使用keydown - 选择在firefox中不起作用，因为它在选择输入时不会听到按键的错误（或不是错误） - https://support.mozilla.org/en-US/questions/998291 。

Firefox 29.0 has a bug with keypress on select inputs, use keydown instead - Select is not working for you in firefox due to a bug (or not a bug) where they don't listen to keypress when its on a select input - https://support.mozilla.org/en-US/questions/998291.

工作演示 - http://codepen.io/nitishdhar/pen/Gxbhm （也适用于chrome& FF）

WORKING DEMO - http://codepen.io/nitishdhar/pen/Gxbhm (works in chrome & FF as well)

完成代码

(function($) {
    $.fn.enterAsTab = function(options) {
        var settings = $.extend({
            'allowSubmit': false
        }, options);
        $(this).find('input, select, textarea, button').live("keydown", {localSettings: settings}, function(event) {
            if (settings.allowSubmit) {
                var type = $(this).attr("type");
                if (type == "submit") {
                    return true;
                }
            }
            if (event.keyCode == 13) {
                var inputs = $(this).parents("form").eq(0).find(":input:visible:not(:disabled):not([readonly])");
                var idx = inputs.index(this);
                if (idx == inputs.length - 1) {
                    idx = -1;
                } else {
                    inputs[idx + 1].focus(); // handles submit buttons
                }
                try {
                    inputs[idx + 1].select();
                }
                catch (err) {
                    // handle objects not offering select
                }
                return false;
            }
        });
        return this;
    };
})(jQuery);

$("#form").enterAsTab({ 'allowSubmit': true});

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