next-csrf/example/node_modules/ally.js/amd/util/tabindex-value.js

CSRF mitigation library for Next.js

(/* istanbul ignore next */ function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(['module', 'exports', '../is/valid-tabindex'], factory);
  } else if (typeof exports !== "undefined") {
    factory(module, exports, require('../is/valid-tabindex'));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod, mod.exports, global.validTabindex);
    global.tabindexValue = mod.exports;
  }
})(this, function (module, exports, _validTabindex) {
  'use strict';

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

  exports.default = function (element) {
    if (!(0, _validTabindex2.default)(element)) {
      return null;
    }

    // Edge 14 has a capitalization problem on SVG elements,
    // see https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/9282058/
    var hasTabindex = element.hasAttribute('tabindex');
    var attributeName = hasTabindex ? 'tabindex' : 'tabIndex';

    // @browser-issue Gecko https://bugzilla.mozilla.org/show_bug.cgi?id=1128054
    var tabindex = parseInt(element.getAttribute(attributeName), 10);
    return isNaN(tabindex) ? -1 : tabindex;
  };

  var _validTabindex2 = _interopRequireDefault(_validTabindex);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {
      default: obj
    };
  }

  module.exports = exports['default'];
});
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