next-csrf/example/node_modules/ally.js/when/focusable.js

CSRF mitigation library for Next.js

'use strict';

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

exports.default = function () {
  var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
      context = _ref.context,
      callback = _ref.callback,
      area = _ref.area;

  if (typeof callback !== 'function') {
    throw new TypeError('when/focusable requires options.callback to be a function');
  }

  var element = (0, _contextToElement2.default)({
    label: 'when/focusable',
    context: context
  });

  var filterCallback = function filterCallback(target) {
    if (!(0, _focusable2.default)(target)) {
      return false;
    }

    return callback(target);
  };

  var _document = (0, _getDocument2.default)(element);
  var handle = (0, _visibleArea2.default)({ context: element, callback: filterCallback, area: area });
  var disengage = function disengage() {
    _document.removeEventListener('focus', disengage, true);
    handle && handle.disengage();
  };

  _document.addEventListener('focus', disengage, true);

  return { disengage: disengage };
};

var _visibleArea = require('./visible-area');

var _visibleArea2 = _interopRequireDefault(_visibleArea);

var _focusable = require('../is/focusable');

var _focusable2 = _interopRequireDefault(_focusable);

var _contextToElement = require('../util/context-to-element');

var _contextToElement2 = _interopRequireDefault(_contextToElement);

var _getDocument = require('../util/get-document');

var _getDocument2 = _interopRequireDefault(_getDocument);

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

module.exports = exports['default'];
/*
  trigger a callback once the context element is focusable and is fully visible in the viewport
*/
//# sourceMappingURL=focusable.js.map