Bootstrap 模态将焦点设置在靠近正文输入的弹出窗口上

Question

嗨 Stack 溢出社区人

我想在用户单击 bootstrap 模式 window 时将焦点设置为输入。

我尝试了以下代码但没有帮助。任何帮助表示感谢。

$('#myModal').on('hidden.bs.modal', function() {
  $('#focusMe').focus()
})

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet">

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css">

<!--CB-modal -->
<!-- Button trigger modal -->
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">
  Launch demo modal
</button>

<label>Foucs Me</label>
<input type="text" id="focusMe">

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>
<!-- JS code -->
<script src="https://code.jquery.com/jquery-3.1.1.min.js">
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js">
</script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js">
</script>

Answer 1

您只需要在调用 focus() 事件输入之前添加 setTimeout() 函数。

在您的代码中 focus() 方法在 bootstrap 模式关闭后立即调用，当 DOM 未正确加载时。

$('#myModal').on('hidden.bs.modal', function() {
  setTimeout(function(){
      $('#focusMe').focus();
  },100);
});

Bootstrap 模态将焦点设置在靠近正文输入的弹出窗口上

Bootstrap modal set focus on popup close to input in body

javascript

jquery

bootstrap-4

bootstrap-modal

setfocus