Bootbox: Callback function after dismissing the dialog / Clicking on the 'X' button

Question

The following snippet allows me to perform stuff in a callback function for the buttons that are clicked. However, how can I get a callback function, or a similar workaround such that I can perform some code when a user clicks on the 'X' button/dismisses the dialog?

    bootbox.dialog({
        title: "Woah this acts like an alert",
        message: "Cool info for you. You MUST click Ok.",
        buttons: {
            sucess:{
                label: "Ok",
                callback: callback
            }
        }       
    });

   callback(){//stuff that happens when they click Ok.}

I do not want to disable/hide the close button with

closeButton: false,

Answer 1

You can use a variable to check if the modal was hidden after a click on OK or x button / escape key

var status = false;

$('.btn').on('click', function () {
    bootbox.dialog({
        title: "Woah this acts like an alert",
        message: "Cool info for you. You MUST click Ok.",
        buttons: {
            sucess: {
                label: "Ok",
                callback: function () {
                    status = true;
                }
            }
        },
        onEscape: function () {
            $('.bootbox.modal').modal('hide');
        }
    });
});

$(document).on("hidden.bs.modal", ".bootbox.modal", function (e) {
    callback();
});


function callback() {
    if (!status) {
        onClose();
    } else {
        onOK();
        status = false;
    }
}

function onClose() {
    $('p.alert span').removeClass().addClass('text-danger').text("Dismissed");
}

function onOK() {
    $('p.alert span').removeClass().addClass('text-success').text("Sucess");
}

Fiddle demo