confirm form submit with jquery UI

Question

I\'m trying to confirm a submit form that is created using ruby on rails, but before submitting I have a condition that open a confirm popup asking if the user really wants

Answer 1

The issue is in the way that the browser handles it's own alert, confirm, and prompt versus self generated dialogs. You need to add in a try/catch sort of scenario.

I created the following a bit back to address this: https://jsfiddle.net/Twisty/7kp46r22/3/

This uses $.Deferred and $when() to wait for the user to make a selection before returning the results or executing any callbacks.

For your application, this might look like:

Working example: https://jsfiddle.net/Twisty/wtogu9cu/

HTML

<form id="myForm">
  Submit Form:
  <button type="submit">Go</button>
</form>

jQuery

function ui_confirm(message, callback) {
  var dfd = $.Deferred();
  var dialog = $("<div>", {
      id: "confirm"
    })
    .html(message)
    .appendTo($("body"))
    .data("selection", false)
    .dialog({
      autoOpen: false,
      resizable: false,
      title: 'Confirm',
      zIndex: 99999999,
      modal: true,
      buttons: [{
        text: "Yes",
        click: function() {
          $(this).dialog("close");
          dfd.resolve(true);
          if ($.isFunction(callback)) {
            callback.apply();
          }
        }
      }, {
        text: "No",
        click: function() {
          $(this).dialog("close");
          dfd.resolve(false);
        }
      }],
      close: function(event, ui) {
        $('#confirm').remove();
      }
    });
  dialog.dialog("open");
  return dfd.promise();
}
$(function() {
  $('#myForm').submit(function(e) {
    e.preventDefault();

    // your code

    $.when(ui_confirm("Are you sure?")).done(function(val) {
      if (val) {
        console.log("Submit the form.");
        $('#myForm')[0].submit();
      } else {
        console.log("Do not submit the form.");
      }
    });
  });
});