I want to show modal popup before leaving the page

Question

<a href="https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_modal&stacked=h" id="leave">click here to leave the page</a>


<div id="myModal" class="modal fade" role="dialog">
  <div class="modal-dialog">

    <!-- Modal content-->
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
        <h4 class="modal-title">Modal Header</h4>
      </div>
      <div class="modal-body">
        <p>Changes made may not be saved.</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>

  </div>
</div>

$("#leave").click(function() {
  $(window).bind('beforeunload', function() {
    return 'Changes you made may not be Saved';
  });
});

here is the js fiddle am working on

Closest you will get methinks is https://stackoverflow.com/questions/20253246/adding-click-event-for-a-button-created-dynamically-using-jquery. OR Just make you check if a 'saved' variable is set. — Gavin Simpson, Aug 29 '18 at 04:22
could you please confirm if you need that "beforeunload" event or it is just for example? if you don't need it then it's possible to show model otherwise not. — Ram Singh, Aug 29 '18 at 04:36

Sang Suantak · Answer 1 · 2018-08-29T05:00:49.800

1

You could prevent the leave link's default behavior, display the dialog and use timeout to redirect the page in a few seconds.

Example:

$("#leave").click(function(e) {
  e.preventDefault();
  var link = this.href;
  //code to show dialog
  window.setTimeout(function() {    
    window.location.href = link;
  }, 2000);
});

Also, you need to wrap the script codes in a script html tag.

edited Aug 29 '18 at 05:00

answered Aug 29 '18 at 04:33

Sang Suantak

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score 0 · Answer 2 · edited Aug 01 '20 at 13:33

Why cant you set up redirecting logic inside the modal button and let the a element display the modal.It seems like a simpler solution.

$("#leave").click(e => {
    e.preventDefault()
    $("#myModal").modal({
        show: true
    })
})
$("#proceedLeaveBtn").click(() => {
    window.location.href = "https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_modal&stacked=h"
})

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<a href="#" id="leave">click here to leave the page</a>

<div id="myModal" class="modal fade" role="dialog">
    <div class="modal-dialog">

        <!-- Modal content-->
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h4 class="modal-title">Modal Header</h4>
            </div>
            <div class="modal-body">
                <p>Changes made may not be saved.</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
                <button id="proceedLeaveBtn" type="button" class="btn btn-default" data-dismiss="modal">Proceed</button>
            </div>
        </div>

    </div>
</div>

You can even specify data-href attribute inside the button element and retrive it inside the click handler.Its up to you.

I want to show modal popup before leaving the page

2 Answers2