@wordpress/block-library/build-module/template-part/index.js

Block library for the WordPress editor.

/**
 * External dependencies
 */
import { capitalCase } from 'change-case';

/**
 * WordPress dependencies
 */
import { store as coreDataStore } from '@wordpress/core-data';
import { select } from '@wordpress/data';
import { symbolFilled } from '@wordpress/icons';
import { addFilter } from '@wordpress/hooks';
import { decodeEntities } from '@wordpress/html-entities';

/**
 * Internal dependencies
 */
import initBlock from '../utils/init-block';
const metadata = {
  $schema: "https://schemas.wp.org/trunk/block.json",
  apiVersion: 3,
  name: "core/template-part",
  title: "Template Part",
  category: "theme",
  description: "Edit the different global regions of your site, like the header, footer, sidebar, or create your own.",
  textdomain: "default",
  attributes: {
    slug: {
      type: "string"
    },
    theme: {
      type: "string"
    },
    tagName: {
      type: "string"
    },
    area: {
      type: "string"
    }
  },
  supports: {
    align: true,
    html: false,
    reusable: false,
    renaming: false,
    interactivity: {
      clientNavigation: true
    }
  },
  editorStyle: "wp-block-template-part-editor"
};
import edit from './edit';
import { enhanceTemplatePartVariations } from './variations';
const {
  name
} = metadata;
export { metadata, name };
export const settings = {
  icon: symbolFilled,
  __experimentalLabel: ({
    slug,
    theme
  }) => {
    // Attempt to find entity title if block is a template part.
    // Require slug to request, otherwise entity is uncreated and will throw 404.
    if (!slug) {
      return;
    }
    const {
      getCurrentTheme,
      getEditedEntityRecord
    } = select(coreDataStore);
    const entity = getEditedEntityRecord('postType', 'wp_template_part', (theme || getCurrentTheme()?.stylesheet) + '//' + slug);
    if (!entity) {
      return;
    }
    return decodeEntities(entity.title) || capitalCase(entity.slug || '');
  },
  edit
};
export const init = () => {
  addFilter('blocks.registerBlockType', 'core/template-part', enhanceTemplatePartVariations);

  // Prevent adding template parts inside post templates.
  const DISALLOWED_PARENTS = ['core/post-template', 'core/post-content'];
  addFilter('blockEditor.__unstableCanInsertBlockType', 'core/block-library/removeTemplatePartsFromPostTemplates', (canInsert, blockType, rootClientId, {
    getBlock,
    getBlockParentsByBlockName
  }) => {
    if (blockType.name !== 'core/template-part') {
      return canInsert;
    }
    for (const disallowedParentType of DISALLOWED_PARENTS) {
      const hasDisallowedParent = getBlock(rootClientId)?.name === disallowedParentType || getBlockParentsByBlockName(rootClientId, disallowedParentType).length;
      if (hasDisallowedParent) {
        return false;
      }
    }
    return true;
  });
  return initBlock({
    name,
    metadata,
    settings
  });
};
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