Twitter-bootstrap – twitter bootstrap modal not really modal

Bootstrap 3 & 4

$('#myModal').on('hidden.bs.modal', function () {
    // do something…
});

Bootstrap 3: getbootstrap.com/javascript/#modals-events

Bootstrap 4: getbootstrap.com/docs/4.1/components/modal/#events

Bootstrap 2.3.2

$('#myModal').on('hidden', function () {
    // do something…
});

See getbootstrap.com/2.3.2/javascript.html#modals → Events

GET recipe

For this task you can use already available plugins and bootstrap extensions. Or you can make your own confirmation popup with just 3 lines of code. Check it out.

Say we have this links (note data-href instead of href) or buttons that we want to have delete confirmation for:

<a href="#" data-href="delete.php?id=23" data-toggle="modal" data-target="#confirm-delete">Delete record #23</a>

<button class="btn btn-default" data-href="/delete.php?id=54" data-toggle="modal" data-target="#confirm-delete">
    Delete record #54
</button>

Here #confirm-delete points to a modal popup div in your HTML. It should have an "OK" button configured like this:

<div class="modal fade" id="confirm-delete" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                ...
            </div>
            <div class="modal-body">
                ...
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
                <a class="btn btn-danger btn-ok">Delete</a>
            </div>
        </div>
    </div>
</div>

Now you only need this little javascript to make a delete action confirmable:

$('#confirm-delete').on('show.bs.modal', function(e) {
    $(this).find('.btn-ok').attr('href', $(e.relatedTarget).data('href'));
});

So on show.bs.modal event delete button href is set to URL with corresponding record id.

Demo: http://plnkr.co/edit/NePR0BQf3VmKtuMmhVR7?p=preview

POST recipe

I realize that in some cases there might be needed to perform POST or DELETE request rather then GET. It it still pretty simple without too much code. Take a look at the demo below with this approach:

// Bind click to OK button within popup
$('#confirm-delete').on('click', '.btn-ok', function(e) {

  var $modalDiv = $(e.delegateTarget);
  var id = $(this).data('recordId');

  $modalDiv.addClass('loading');
  $.post('/api/record/' + id).then(function() {
     $modalDiv.modal('hide').removeClass('loading');
  });
});

// Bind to modal opening to set necessary data properties to be used to make request
$('#confirm-delete').on('show.bs.modal', function(e) {
  var data = $(e.relatedTarget).data();
  $('.title', this).text(data.recordTitle);
  $('.btn-ok', this).data('recordId', data.recordId);
});

// Bind click to OK button within popup
$('#confirm-delete').on('click', '.btn-ok', function(e) {

  var $modalDiv = $(e.delegateTarget);
  var id = $(this).data('recordId');

  $modalDiv.addClass('loading');
  setTimeout(function() {
    $modalDiv.modal('hide').removeClass('loading');
  }, 1000);

  // In reality would be something like this
  // $modalDiv.addClass('loading');
  // $.post('/api/record/' + id).then(function() {
  //   $modalDiv.modal('hide').removeClass('loading');
  // });
});

// Bind to modal opening to set necessary data properties to be used to make request
$('#confirm-delete').on('show.bs.modal', function(e) {
  var data = $(e.relatedTarget).data();
  $('.title', this).text(data.recordTitle);
  $('.btn-ok', this).data('recordId', data.recordId);
});

.modal.loading .modal-content:before {
  content: 'Loading...';
  text-align: center;
  line-height: 155px;
  font-size: 20px;
  background: rgba(0, 0, 0, .8);
  position: absolute;
  top: 55px;
  bottom: 0;
  left: 0;
  right: 0;
  color: #EEE;
  z-index: 1000;
}

<script data-require="jquery@*" data-semver="2.0.3" src="//code.jquery.com/jquery-2.0.3.min.js"></script>
<script data-require="bootstrap@*" data-semver="3.1.1" src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<link data-require="bootstrap-css@3.1.1" data-semver="3.1.1" rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />

<div class="modal fade" id="confirm-delete" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
        <h4 class="modal-title" id="myModalLabel">Confirm Delete</h4>
      </div>
      <div class="modal-body">
        <p>You are about to delete <b><i class="title"></i></b> record, this procedure is irreversible.</p>
        <p>Do you want to proceed?</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
        <button type="button" class="btn btn-danger btn-ok">Delete</button>
      </div>
    </div>
  </div>
</div>
<a href="#" data-record-id="23" data-record-title="The first one" data-toggle="modal" data-target="#confirm-delete">
        Delete "The first one", #23
    </a>
<br />
<button class="btn btn-default" data-record-id="54" data-record-title="Something cool" data-toggle="modal" data-target="#confirm-delete">
  Delete "Something cool", #54
</button>

Demo: http://plnkr.co/edit/V4GUuSueuuxiGr4L9LmG?p=preview

Bootstrap 2.3

Here is an original version of the code I made when I was answering this question for Bootstrap 2.3 modal.

$('#modal').on('show', function() {
    var id = $(this).data('id'),
        removeBtn = $(this).find('.danger');
    removeBtn.attr('href', removeBtn.attr('href').replace(/(&|\?)ref=\d*/, '$1ref=' + id));
});

Demo: http://jsfiddle.net/MjmVr/1595/