@wordpress/block-library/build-module/list-item/hooks/use-split.js

Block library for the WordPress editor.

/**
 * WordPress dependencies
 */
import { useCallback, useRef } from '@wordpress/element';
import { useSelect } from '@wordpress/data';
import { store as blockEditorStore } from '@wordpress/block-editor';
import { cloneBlock, createBlock } from '@wordpress/blocks';
export default function useSplit(clientId) {
  // We can not rely on the isAfterOriginal parameter of the callback,
  // because if the value after the split is empty isAfterOriginal is false
  // while the value is in fact after the original. So to avoid that issue we use
  // a flag where the first execution of the callback is false (it is the before value)
  // and the second execution is true, it is the after value.
  const isAfter = useRef(false);
  const {
    getBlock
  } = useSelect(blockEditorStore);
  return useCallback(value => {
    const block = getBlock(clientId);

    if (isAfter.current) {
      return cloneBlock(block, {
        content: value
      });
    }

    isAfter.current = true;
    return createBlock(block.name, { ...block.attributes,
      content: value
    });
  }, [clientId, getBlock]);
}
//# sourceMappingURL=use-split.js.map