javascript - 按钮收音机上的 Twitter Bootstrap onclick 事件

Question

我有一个 Twitter Bootstrap 按钮收音机并将 onclick 事件挂钩到它。但是如何检查哪些按钮被触发了？

我的第一个想法是简单地检查“活动”类，但这应该会产生竞争条件（结果取决于是先处理 Twitter Bootstrap 事件还是我自己的 onclick 事件）。

Answer 1

我看到了很多复杂的答案，而这在 Bootstrap 3 中非常简单：

第 1 步：使用官方示例代码创建您的单选按钮组，并给容器一个 id：

<div id="myButtons" class="btn-group" data-toggle="buttons">
  <label class="btn btn-primary active">
    <input type="radio" name="options" id="option1" autocomplete="off" checked> Radio 1 (preselected)
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option2" autocomplete="off"> Radio 2
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option3" autocomplete="off"> Radio 3
  </label>
</div>

第 2 步：使用这个 jQuery 处理程序：

$("#myButtons :input").change(function() {
    console.log(this); // points to the clicked input button
});

试试小提琴演示

Answer 2

这真的很烦人。我最终使用的是：

首先，创建一组没有data-toggle属性的简单按钮。

<div id="selector" class="btn-group">
    <button type="button" class="btn active">Day</button>
    <button type="button" class="btn">Week</button>
    <button type="button" class="btn">Month</button>
    <button type="button" class="btn">Year</button>
</div>

接下来，编写一个事件处理程序，通过“激活”单击的按钮和“停用”所有其他按钮来模拟单选按钮效果。（编辑：从评论中集成Nick的更清洁版本。）

$('#selector button').click(function() {
    $(this).addClass('active').siblings().removeClass('active');

    // TODO: insert whatever you want to do with $(this) here
});

Answer 3

我会使用更改事件而不是这样的点击：

$('input[name="name-of-radio-group"]').change( function() {
  alert($(this).val())
})

Answer 4

对于 Bootstrap 3，默认的单选/按钮组结构是：

<div class="btn-group" data-toggle="buttons">
    <label class="btn btn-primary">
        <input type="radio" name="options" id="option1"> Option 1
    </label>
    <label class="btn btn-primary">
        <input type="radio" name="options" id="option2"> Option 2
    </label>
    <label class="btn btn-primary">
        <input type="radio" name="options" id="option3"> Option 3
    </label>
</div>

您可以像这样选择活动的：

$('.btn-primary').on('click', function(){
    alert($(this).find('input').attr('id'));
}); 

Answer 5

不要使用 data-toggle 属性，以便您可以自己控制切换行为。所以它将避免“竞争条件”

我的代码：

按钮组模板（用 .erb 编写，嵌入 ruby​​ 用于 ruby​​ on rails）：

<div class="btn-group" id="featuresFilter">
     <% _.each(features, function(feature) { %> <button class="btn btn-primary" data="<%= feature %>"><%= feature %></button> <% }); %>
</div>

和 javascript：

onChangeFeatures = function(e){
        var el=e.target;
        $(el).button('toggle');

        var features=el.parentElement;
        var activeFeatures=$(features).find(".active");
        console.log(activeFeatures);
}

单击按钮后将触发 onChangeFeatures 函数。

Answer 6

I needed to do the same thing for a chart where you could select the period of the data that should be displayed.

Therefore I introduced the CSS class 'btn-group-radio' and used the following unobtrusive javascript one-liner:

// application.js
$(document).ready(function() {
  $('.btn-group-radio .btn').click(function() {
    $(this).addClass('active').siblings('.btn').removeClass('active');
  });
});

And here is the HTML:

<!-- some arbitrary view -->
<div class="btn-group btn-group-radio">
  <%= link_to '1W', charts_path('1W'), class: 'btn btn-default active', remote: true %>
  <%= link_to '1M', charts_path('1M'), class: 'btn btn-default', remote: true %>
  <%= link_to '3M', charts_path('3M'), class: 'btn btn-default', remote: true %>
  <%= link_to '6M', charts_path('6M'), class: 'btn btn-default', remote: true %>
  <%= link_to '1Y', charts_path('1Y'), class: 'btn btn-default', remote: true %>
  <%= link_to 'All', charts_path('all'), class: 'btn btn-default', remote: true %>
</div>

Answer 7

Looking at the example HTML for radio buttons on the Twitter Bootstrap page (http://twitter.github.com/bootstrap/base-css.html#forms), you can see that each input has a unique ID attribute, i.e. optionsRadios1 and optionsRadios2.

The relevant HTML example snippet is included here for completeness:

<div class="controls">
  <label class="radio">
    <input type="radio" checked="" value="option1" id="optionsRadios1" name="optionsRadios">
    Option one is this and that—be sure to include why it's great
  </label>
  <label class="radio">
    <input type="radio" value="option2" id="optionsRadios2" name="optionsRadios">
    Option two can is something else and selecting it will deselect option one
  </label>
</div>

So you can use a jQuery click event, and then use the this reference to look at the id of the HTML element that was clicked.

$('.controls').find('input').bind('click',function(event){
  if($(this).attr('id')==='optionsRadios1'){
    alert($(this).attr('id'));
  } else {
    //... call some other function
  }
});

Answer 8

如果你的 html 与示例类似，那么点击事件是在标签上产生的，而不是在输入中，所以我使用下面的代码： Html 示例：

<div id="myButtons" class="btn-group" data-toggle="buttons">
  <label class="btn btn-primary active">
    <input type="radio" name="options" id="option1" autocomplete="off" checked> Radio 1 (preselected)
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option2" autocomplete="off"> Radio 2
  </label>      
</div>

事件的 Javascript 代码：

$('#option1').parent().on("click", function () {
   alert("click fired"); 
});

Answer 9

我搜索了很多页面：我找到了一个漂亮的解决方案。一探究竟：

git链接

<!DOCTYPE html>
<html>
<head>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">

<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<link href="https://gitcdn.github.io/bootstrap-toggle/2.2.2/css/bootstrap-toggle.min.css" rel="stylesheet">
<script src="https://gitcdn.github.io/bootstrap-toggle/2.2.2/js/bootstrap-toggle.min.js"></script>

    <script>
        $(function() {
            $("#my_launch_today_chk").change(function() {
                var chk = $(this).prop('checked');
                if(chk == true){
                    console.log("On");
                }else{
                    console.log("OFF");
                }
            });
        });
    </script>
</head>
<body >

<input type="checkbox" id="my_launch_today_chk" checked data-on="Launch" data-off="OFF" data-toggle="toggle" data-size="small">
</body>
</html>