Change backdrop to static for open bootstrap modal

问题

Can I change backdrop to 'static' while my modal is open?

I have modal with form submit button. When I click this button I show loading spinner on my modal and that is the moment when I want to change backdrop to static

I tried $('#myModal').modal({backdrop: 'static', keyboard: false}), but I can still close my modal by clicking the backdrop or using escape button.

Second step should be changing backdrop back to true, but I didn't try this yet, because first I need to set backdrop to static.

I could set backdrop to static on modal show, but I want to avoid this and change it after submit.

Any ideas?

回答1:

Ok I solved this. Maybe it is not the best solution, but it is working for my special case.

I added $('#myModal').off('click'); just after I show loading spinner on submit. This prevents from closing modal with mouse click.

There was a problem with disabling escape button, because browsers stops page loading when user press this button. So I decided to hide the spinner to unlock the form with this code:

$(document).on('keydown',function(e) {
  if (e.keyCode == 27) {
    $('#myLoadingSpinner').hide();
  }
});

Edit: I found another solution for backdrop:

$('#myModal').data('bs.modal').options.backdrop = 'static';

I tried this also for keyboard = false, but it doesn't work.

回答2:

You can disallow closing of a modal when clicking outside of it, as well as on esc button. For example, if your modal ID is signUp:

jQuery('#signUp').on('shown.bs.modal', function() {
    jQuery(this).data('bs.modal').options.backdrop = 'static';
    jQuery(this).data('bs.modal').options.keyboard = false;
});

回答3:

The simplest method I've come up with is attaching to the hide.bs.modal event and calling preventDefault(). This doesn't technically set the backdrop to static, but it achieves the same effect in a toggleable manner.

let $myModal = $('#myModal');

function preventHide(e) {
    e.preventDefault();
}

// if you have buttons that are allowed to close the modal
$myModal.find('[data-dismiss="modal"]').click(() => 
    $myModal.off('hide.bs.modal', preventHide));

function disableModalHide() {
    $myModal.on('hide.bs.modal', preventHide);
}

function enableModalHide() {
    $myModal.off('hide.bs.modal', preventHide);
}

(Disclaimer, I didn't test making buttons allowed to hide the modal, as that wasn't my scenario. If it doesn't work, just call .modal('hide') from the click() callback.)

回答4:

I had a modal that could be opened 2 different ways. When the user opened it one way, I wanted them to be able to close the modal. When they opened it the other way I didn't want them to be able to close it.

I found this question and used the solution from the original poster. I also tried adding keyboard which now works:

$('#myModal').data('bs.modal').options.backdrop = 'static';
$('#myModal').data('bs.modal').options.keyboard = false;

回答5:

I had a different JavaScript object returned and thus the following solution:

$myModal.data("bs.modal")._config.backdrop = value;

来源：https://stackoverflow.com/questions/38768034/change-backdrop-to-static-for-open-bootstrap-modal

标签

javascript

jquery

twitter-bootstrap

bootstrap-modal