@wordpress/block-editor/build-module/hooks/block-renaming.js

Generic block editor.

/**
 * WordPress dependencies
 */
import { addFilter } from '@wordpress/hooks';
import { hasBlockSupport } from '@wordpress/blocks';

/**
 * Filters registered block settings, adding an `__experimentalLabel` callback if one does not already exist.
 *
 * @param {Object} settings Original block settings.
 *
 * @return {Object} Filtered block settings.
 */
export function addLabelCallback(settings) {
  // If blocks provide their own label callback, do not override it.
  if (settings.__experimentalLabel) {
    return settings;
  }
  const supportsBlockNaming = hasBlockSupport(settings, 'renaming', true // default value
  );

  // Check whether block metadata is supported before using it.
  if (supportsBlockNaming) {
    settings.__experimentalLabel = (attributes, {
      context
    }) => {
      const {
        metadata
      } = attributes;

      // In the list view, use the block's name attribute as the label.
      if (context === 'list-view' && metadata?.name) {
        return metadata.name;
      }
    };
  }
  return settings;
}
addFilter('blocks.registerBlockType', 'core/metadata/addLabelCallback', addLabelCallback);
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