botframework-webchat-component/lib/Utils/AccessKeySink/useFocusAccessKeyEffect.js

React component of botframework-webchat

"use strict";

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

var _react = require("react");

var _useContext = _interopRequireDefault(require("./internal/useContext"));

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

function removeInline(array, item) {
  var index = array.indexOf(item);
  ~index && array.splice(index, 1);
}

function useFocusAccessKeyEffect(key, ref) {
  if (key && typeof key !== 'string') {
    throw new Error('useFocusAccessKeyEffect: If defined, "key" must be of type "string".');
  } else if (!ref || !('current' in ref)) {
    throw new Error('useFocusAccessKeyEffect: "ref" must be defined and has "current" property.');
  }

  var context = (0, _useContext.default)();
  (0, _react.useEffect)(function () {
    if (key) {
      var entry = {
        keys: key.split(/[\t-\r \xA0\u1680\u2000-\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF]+/g),
        ref: ref
      };
      context.focii.push(entry);
      return function () {
        return removeInline(context.focii, entry);
      };
    }
  }, [context, key, ref]);
}
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