react-use-control/dist/react-use-control.esm.js

import { useState, useRef } from 'react';

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

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

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

function _iterableToArrayLimit(arr, i) {
  if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
  var _arr = [];
  var _n = true;
  var _d = false;
  var _e = undefined;

  try {
    for (var _i = arr[Symbol.iterator](), _s; !(_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 _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 _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.");
}

var controlSymbol = Symbol('control');
function isControl(obj) {
  return obj && obj[controlSymbol];
} // TODO: 同一个 control 传给多个 组件实例

function useProp(control, prop, initial) {
  // if (true) {
  //   // eslint-disable-next-line no-prototype-builtins
  //   if (React.useRef(control.hasOwnProperty(prop)).current)
  //     throw new Error('Could not use prop multiple times.');
  // }
  if (!control) return useState(initial);

  var _ref = control[prop] || {},
      state = _ref.state,
      transform = _ref.transform;

  var isSource = useRef(!state).current;
  var s = isSource ? useState(initial) : state;
  return transform ? transform(s) : s;
}
/**
 * Create or reuse a control
 * @param {object} [control] state store
 * @param {object | array} [transforms] state transforms
 * @return {array} control and useProp
 */

function useControl(control, transforms) {
  var m = isControl(control) ? Object.create(control) : _defineProperty({}, controlSymbol, true);

  if (transforms) {
    (Array.isArray(transforms) ? transforms : Object.entries(transforms)).forEach(function (_ref3) {
      var _ref4 = _slicedToArray(_ref3, 2),
          prop = _ref4[0],
          t = _ref4[1];

      var _ref5 = m[prop] || {},
          state = _ref5.state,
          transform = _ref5.transform;

      m[prop] = {
        state: state,
        transform: transform ? function (s) {
          return transform(t(s));
        } : t
      };
    });
  }

  return [m, function useProp$(prop, initial) {
    var state = useProp(control, prop, initial);
    m[prop] = {
      transform: transforms && transforms[prop],
      state: state
    };
    return state;
  }];
}
function useControlProp(control) {
  return function useProp$(prop, initial) {
    return useProp(control, prop, initial);
  };
}
function usePick(control, props) {
  var _useControl = useControl(),
      _useControl2 = _slicedToArray(_useControl, 2),
      m = _useControl2[0],
      useProp = _useControl2[1];

  if (control) {
    props.forEach(function (prop) {
      var _ref6 = Array.isArray(prop) ? prop : [prop, prop],
          _ref7 = _slicedToArray(_ref6, 2),
          from = _ref7[0],
          to = _ref7[1];

      m[to || from] = control[from];
    });
  }

  return [m, useProp];
} // TODO:  useWatch

export default useControl;
export { isControl, useControlProp, usePick, useProp };
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