@sberdevices/plasma-temple/dist/es/hooks/useFocusedState.js

SberDevices CanvasApp Templates.

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

import React from 'react';
export var useFocusedState = function useFocusedState(ref) {
  var _React$useState = React.useState(false),
      _React$useState2 = _slicedToArray(_React$useState, 2),
      focused = _React$useState2[0],
      setFocused = _React$useState2[1];

  var onFocus = React.useCallback(function () {
    setFocused(true);
  }, []);
  var onBlur = React.useCallback(function () {
    setFocused(false);
  }, []);
  React.useEffect(function () {
    if (ref.current) {
      var element = ref.current;
      element.addEventListener('focus', onFocus);
      element.addEventListener('blur', onBlur);
      return function () {
        element.removeEventListener('focus', onFocus);
        element.removeEventListener('blur', onBlur);
      };
    }

    return undefined;
  }, [onBlur, onFocus, ref]);
  return focused;
};
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