$("#add-ssh-key-modal-window").html("<%= escape_javascript(render partial: 'add_ssh_key_popup') %>");

// disable the submit button on load
var $input = $('input:text'),
$register = $('#register');

var name_value = document.forms["add_new_key_form"]["name"].value;
var public_key_value = document.forms["add_new_key_form"]["public_key"].value;
if (public_key_value == null || public_key_value == "") {
  $register.attr('disabled', true);
}

// capture events to enable submit button when applicable
$input.on('keyup paste mouseleave onblur', function() {
  var trigger = false;

  var name_value = document.forms["add_new_key_form"]["name"].value;
  var public_key_value = document.forms["add_new_key_form"]["public_key"].value;

  var publicKeyRegExp = /^ssh-(rsa|dss) [A-Za-z0-9+\/=\+]+\b/;
  var validKey = false;
 
  if (publicKeyRegExp.test(public_key_value )) {
    validKey = true;
  }

  if (public_key_value == null || public_key_value == "" || !validKey){
    trigger = true;
  }

  trigger ? $register.attr('disabled', true) : $register.removeAttr('disabled');
});

// reset form input fields, for the next time around
function reset_form() {
  $('#name').val("");
  $('#public_key').val("");
  $('select').val('')
}