@wordpress/compose/build-module/higher-order/with-state/index.js

WordPress higher-order components (HOCs).

import _extends from "@babel/runtime/helpers/esm/extends";
import { createElement } from "@wordpress/element";

/**
 * WordPress dependencies
 */
import { Component } from '@wordpress/element';
/**
 * Internal dependencies
 */

import createHigherOrderComponent from '../../utils/create-higher-order-component';
/**
 * A Higher Order Component used to provide and manage internal component state
 * via props.
 *
 * @param {?Object} initialState Optional initial state of the component.
 *
 * @return {WPComponent} Wrapped component.
 */

export default function withState(initialState = {}) {
  return createHigherOrderComponent(OriginalComponent => {
    return class WrappedComponent extends Component {
      constructor() {
        super(...arguments);
        this.setState = this.setState.bind(this);
        this.state = initialState;
      }

      render() {
        return createElement(OriginalComponent, _extends({}, this.props, this.state, {
          setState: this.setState
        }));
      }

    };
  }, 'withState');
}
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