minska-react/index.js

React helpers for minska

'use strict';

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

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var React = _interopDefault(require('react'));

var _extends = Object.assign || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};













var objectWithoutProperties = function (obj, keys) {
  var target = {};

  for (var i in obj) {
    if (keys.indexOf(i) >= 0) continue;
    if (!Object.prototype.hasOwnProperty.call(obj, i)) continue;
    target[i] = obj[i];
  }

  return target;
};

const defaultMapStateToProps = state => state;

const storeShape = {
  send: React.PropTypes.func.isRequired,
  subscribe: React.PropTypes.func.isRequired,
  unsubscribe: React.PropTypes.func.isRequired
};

const Connect = (mapStateToProps = defaultMapStateToProps) => WrappedComponent => {
  var _class, _temp;

  return _temp = _class = class extends React.PureComponent {

    constructor(props, context) {
      super(props, context);

      const wrappedName = WrappedComponent.displayName || WrappedComponent.name || 'Component';
      const displayName = `connect(${wrappedName})`;
      this.connectKey = `${displayName}:${Math.random().toString(36).substr(2, 8)}`;

      this.store = context.store || props.store;

      if (!this.store) {
        throw new Error(`Could not find 'store' in either the context or props of component '${displayName}'. Either wrap the root component in <Provider>, or explicitly pass 'store' as a prop to '${displayName}'.`);
      }

      this.state = _extends({}, mapStateToProps(this.store.state, props));

      this.onUpdate = this.onUpdate.bind(this);
      this.send = this.send.bind(this);
    }

    componentWillMount() {
      this.store.subscribe('onChange', this.connectKey, this.onUpdate);
    }

    componentWillUnmount() {
      this.store.unsubscribe(this.connectKey);
    }

    onUpdate(state) {
      this.setState(_extends({}, mapStateToProps(state, this.props)));
    }

    send(...args) {
      this.store.send(...args);
    }

    render() {
      var _props = this.props;
      const store = _props.store,
            propsWithoutStore = objectWithoutProperties(_props, ['store']);


      return React.createElement(WrappedComponent, _extends({}, propsWithoutStore, this.state, {
        send: this.send
      }));
    }
  }, _class.contextTypes = {
    store: React.PropTypes.shape(storeShape)
  }, _class.propTypes = {
    store: React.PropTypes.shape(storeShape)
  }, _temp;
};

class Provider extends React.PureComponent {
  constructor(...args) {
    var _temp;

    return _temp = super(...args), this.state = {
      store: this.props.store
    }, _temp;
  }

  getChildContext() {
    return {
      store: this.state.store
    };
  }

  render() {
    return this.props.children;
  }
}

Provider.propTypes = {
  children: React.PropTypes.node.isRequired,
  store: React.PropTypes.object.isRequired
};
Provider.childContextTypes = {
  store: React.PropTypes.object
};

exports.connect = Connect;
exports.Provider = Provider;
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