javascript - Bootstrap 4 切换按钮

Question

我正在构建一个简单的车辆检查表单，我想使用复选框作为按钮来捕获 true/false 值。

使用Bootstrap 4这应该是微不足道的.

但是我想调整按钮的默认行为； 在成功和危险类之间切换以表示true/false。并且在某些情况下还可以更改按钮的文本，例如。 “泄漏”->“无泄漏”。

1. 我已经在 @Yass 的帮助下实现了切换，但在提交表单时没有获得正确的 true/false 值。即使复选框被选中 (true)，这些值也会像 false 一样传递。

2. 我不确定在两种状态之间切换时如何处理文本更改。

复选框按钮

HTML

<div class="row">
    <div class="col-sm-4 col-xs-12">
        <p class="font-weight-bold">Bonnet</p>
        <div data-toggle="buttons">
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="oil" checked="checked" autocomplete="off"> Oil
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="coolant" checked="checked" autocomplete="off"> Coolant
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="breakfluid" checked="checked" autocomplete="off"> Break Fluid
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="screenwash" checked="checked" autocomplete="off"> Screen Wash
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="noleaks" checked="checked" autocomplete="off"> No Leaks
            </label>
        </div>
    </div>
    <div class="col-sm-4 col-xs-12">
        <p class="font-weight-bold">Outside</p>
        <div data-toggle="buttons">
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="tyres" checked="checked" autocomplete="off">
                Tyres
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="wiperblades" checked="checked" autocomplete="off">
                Wiper Blades
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="lights" checked="checked" autocomplete="off">
                Lights
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="indicators" checked="checked" autocomplete="off">
                Indicators
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="outcleanliness" checked="checked" autocomplete="off">
                Cleanliness
            </label>
        </div>
    </div>
    <div class="col-sm-4 col-xs-12">
        <p class="font-weight-bold">Inside</p>
        <div data-toggle="buttons">
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="horn" checked="checked" autocomplete="off">
                Horn
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="breaks" checked="checked" autocomplete="off">
                Breaks/Handbrake
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="seatbelt" checked="checked" autocomplete="off">
                Seatbelt
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="windscreen" checked="checked" autocomplete="off">
                Windscreen
            </label>
            <label class="btn btn-block btn-success">
                <input type="checkbox" name="incleanliness" checked="checked" autocomplete="off">
                Cleanliness
            </label>
        </div>
    </div>
</div>

JavaScript

$('label.btn').on('click', function() {
    //Find the child check box.
    var $input = $(this).find('input');

    $(this).toggleClass('btn-danger btn-success');
    //Remove the attribute if the button is "disabled"
    if ($(this).hasClass('btn-danger')) {
        $input.removeAttr('checked');
    } else {
        $input.attr('checked', '');
    }

    return false; //Click event is triggered twice and this prevents re-toggling of classes
});

https://jsfiddle.net/mstnorris/9fyzfu8w/

Answer 1

这是一个使用纯 Javascript 的替代解决方案。添加与每个按钮关联的隐藏输入，并在每次单击按钮时更新隐藏值。

HTML:

<!-- Visible button -->
<input onclick="toogleButton(this,'hiddenButton')" class="btn btn-secondary" type="button" value="Toogle">
<!-- Hidden input -->
<input name="FM_city" id="hiddenButton" type="hidden" value="0"></input>

Javascript:

// Called when the button is clicked
function toogleButton(callingElement,hiddenElement)
{
    // Check the color of the button
    if (callingElement.classList.contains('btn-secondary'))
    {
        // If the button is 'unset'; change color and update hidden element to 1
        callingElement.classList.remove('btn-secondary');
        callingElement.classList.add('btn-success');
        document.getElementById(hiddenElement).value="1";
    }
    else 
    {
        // If the button is 'set'; change color and update hidden element to 0
        callingElement.classList.remove('btn-success');
        callingElement.classList.add('btn-secondary');
        document.getElementById(hiddenElement).value="0";
    }
}

提交表单时，处理隐藏输入的值。请注意，您可以使用以下命令轻松更改按钮的文本: callingElement.value="New text here" 最后备注:隐藏元素的初始值必须与关联按钮的初始颜色一致。