@wordpress/data/build-module/components/use-dispatch/use-dispatch-with-map.js

Data module for WordPress.

/**
 * External dependencies
 */
import { mapValues } from 'lodash';
/**
 * WordPress dependencies
 */

import { useMemo, useRef } from '@wordpress/element';
import { useIsomorphicLayoutEffect } from '@wordpress/compose';
/**
 * Internal dependencies
 */

import useRegistry from '../registry-provider/use-registry';
/**
 * Custom react hook for returning aggregate dispatch actions using the provided
 * dispatchMap.
 *
 * Currently this is an internal api only and is implemented by `withDispatch`
 *
 * @param {Function} dispatchMap Receives the `registry.dispatch` function as
 *                               the first argument and the `registry` object
 *                               as the second argument.  Should return an
 *                               object mapping props to functions.
 * @param {Array}    deps        An array of dependencies for the hook.
 * @return {Object}  An object mapping props to functions created by the passed
 *                   in dispatchMap.
 */

const useDispatchWithMap = (dispatchMap, deps) => {
  const registry = useRegistry();
  const currentDispatchMap = useRef(dispatchMap);
  useIsomorphicLayoutEffect(() => {
    currentDispatchMap.current = dispatchMap;
  });
  return useMemo(() => {
    const currentDispatchProps = currentDispatchMap.current(registry.dispatch, registry);
    return mapValues(currentDispatchProps, (dispatcher, propName) => {
      if (typeof dispatcher !== 'function') {
        // eslint-disable-next-line no-console
        console.warn(`Property ${propName} returned from dispatchMap in useDispatchWithMap must be a function.`);
      }

      return function () {
        return currentDispatchMap.current(registry.dispatch, registry)[propName](...arguments);
      };
    });
  }, [registry, ...deps]);
};

export default useDispatchWithMap;
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