next-csrf/example/node_modules/ally.js/supports/focus-redirect-legend.js

CSRF mitigation library for Next.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

// see https://jsbin.com/nenirisage/edit?html,js,console,output

exports.default = {
  element: 'fieldset',
  mutate: function mutate(element) {
    element.innerHTML = '<legend>legend</legend><input tabindex="-1"><input tabindex="0">';
    // take care of focus in validate();
    return false;
  },
  validate: function validate(element, focusTarget, _document) {
    var focusable = element.querySelector('input[tabindex="-1"]');
    var tabbable = element.querySelector('input[tabindex="0"]');

    // Firefox requires this test to focus the <fieldset> first, while this is not necessary in
    // https://jsbin.com/nenirisage/edit?html,js,console,output
    element.focus();

    element.querySelector('legend').focus();
    return _document.activeElement === focusable && 'focusable' || _document.activeElement === tabbable && 'tabbable' || '';
  }
};
module.exports = exports['default'];
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