检测引导模式以更改按键输入的目标

I have this code to detect the keypress and direct input towards my searchbar with id="search".

我有这个代码来检测按键和直接输入到我的搜索栏id =“search”。

    $( document ).keypress(function() {
  $("#search").focus();

I also have a bootstrap modal dialog with input fields. Is there a way to detect if the modal is open or not--if it is open, direct the input to the first field of the modal?

我还有一个带输入字段的bootstrap模态对话框。有没有办法检测模态是否打开 - 如果它是打开的，将输入指向模态的第一个字段？

<div class="modal fade" id="signup" role="dialog">
 <div class="modal-dialog">
  <div class="modal-content">
    <div class="modal-header">
    </div>
    <div class="modal-body">
      <input id="input_modal" placeholder="" size="14" autofocus="autofocus"><br>
       <input type="submit" value="Submit" class="hide"/>
    </div>
  </div>
 </div>
</div>

2 个解决方案

#1

For Bootstrap 3:

对于Bootstrap 3：

if ($("element").data('modal') && $("element").data('modal').isShown) {
  //do something
} 

#2

$('#myModal').on('shown.bs.modal', function () {
    $("#search").focus();
})