text: "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.default = useOnRouteFocus;
  
  var React = _interopRequireWildcard(require("react"));
  
  var _NavigationBuilderContext = _interopRequireDefault(require("./NavigationBuilderContext"));
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
  
  function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
  
  /**
   * Hook to handle focus actions for a route.
   * Focus action needs to be treated specially, coz when a nested route is focused,
   * the parent navigators also needs to be focused.
   */
  function useOnRouteFocus(_ref) {
    let {
      router,
      getState,
      key: sourceRouteKey,
      setState
    } = _ref;
    const {
      onRouteFocus: onRouteFocusParent
    } = React.useContext(_NavigationBuilderContext.default);
    return React.useCallback(key => {
      const state = getState();
      const result = router.getStateForRouteFocus(state, key);
  
      if (result !== state) {
        setState(result);
      }
  
      if (onRouteFocusParent !== undefined && sourceRouteKey !== undefined) {
        onRouteFocusParent(sourceRouteKey);
      }
    }, [getState, onRouteFocusParent, router, setState, sourceRouteKey]);
  }
  //# sourceMappingURL=useOnRouteFocus.js.map