use-block-editor-settings.js

/**
 * WordPress dependencies
 */
import { useMemo, useCallback } from '@wordpress/element';
import { useDispatch, useSelect } from '@wordpress/data';
import {
	store as coreStore,
	__experimentalFetchLinkSuggestions as fetchLinkSuggestions,
	__experimentalFetchUrlData as fetchUrlData,
} from '@wordpress/core-data';
import { __ } from '@wordpress/i18n';
import { store as preferencesStore } from '@wordpress/preferences';
import { useViewportMatch } from '@wordpress/compose';
import { store as blocksStore } from '@wordpress/blocks';
import {
	privateApis,
	store as blockEditorStore,
} from '@wordpress/block-editor';

/**
 * Internal dependencies
 */
import inserterMediaCategories from '../media-categories';
import { mediaUpload } from '../../utils';
import { store as editorStore } from '../../store';
import { unlock } from '../../lock-unlock';
import { useGlobalStylesContext } from '../global-styles-provider';

const EMPTY_OBJECT = {};

function __experimentalReusableBlocksSelect( select ) {
	const { getEntityRecords, hasFinishedResolution } = select( coreStore );
	const reusableBlocks = getEntityRecords( 'postType', 'wp_block', {
		per_page: -1,
	} );
	return hasFinishedResolution( 'getEntityRecords', [
		'postType',
		'wp_block',
		{ per_page: -1 },
	] )
		? reusableBlocks
		: undefined;
}

const BLOCK_EDITOR_SETTINGS = [
	'__experimentalBlockDirectory',
	'__experimentalDiscussionSettings',
	'__experimentalFeatures',
	'__experimentalGlobalStylesBaseStyles',
	'alignWide',
	'blockInspectorTabs',
	'allowedMimeTypes',
	'bodyPlaceholder',
	'canLockBlocks',
	'canUpdateBlockBindings',
	'capabilities',
	'clearBlockSelection',
	'codeEditingEnabled',
	'colors',
	'disableCustomColors',
	'disableCustomFontSizes',
	'disableCustomSpacingSizes',
	'disableCustomGradients',
	'disableLayoutStyles',
	'enableCustomLineHeight',
	'enableCustomSpacing',
	'enableCustomUnits',
	'enableOpenverseMediaCategory',
	'fontSizes',
	'gradients',
	'generateAnchors',
	'onNavigateToEntityRecord',
	'imageDefaultSize',
	'imageDimensions',
	'imageEditing',
	'imageSizes',
	'isRTL',
	'locale',
	'maxWidth',
	'postContentAttributes',
	'postsPerPage',
	'readOnly',
	'styles',
	'titlePlaceholder',
	'supportsLayout',
	'widgetTypesToHideFromLegacyWidgetBlock',
	'__unstableHasCustomAppender',
	'__unstableIsPreviewMode',
	'__unstableResolvedAssets',
	'__unstableIsBlockBasedTheme',
];

const {
	globalStylesDataKey,
	globalStylesLinksDataKey,
	selectBlockPatternsKey,
	reusableBlocksSelectKey,
	sectionRootClientIdKey,
} = unlock( privateApis );

/**
 * React hook used to compute the block editor settings to use for the post editor.
 *
 * @param {Object} settings      EditorProvider settings prop.
 * @param {string} postType      Editor root level post type.
 * @param {string} postId        Editor root level post ID.
 * @param {string} renderingMode Editor rendering mode.
 *
 * @return {Object} Block Editor Settings.
 */
function useBlockEditorSettings( settings, postType, postId, renderingMode ) {
	const isLargeViewport = useViewportMatch( 'medium' );
	const {
		allowRightClickOverrides,
		blockTypes,
		focusMode,
		hasFixedToolbar,
		isDistractionFree,
		keepCaretInsideBlock,
		hasUploadPermissions,
		hiddenBlockTypes,
		canUseUnfilteredHTML,
		userCanCreatePages,
		pageOnFront,
		pageForPosts,
		userPatternCategories,
		restBlockPatternCategories,
		sectionRootClientId,
	} = useSelect(
		( select ) => {
			const {
				canUser,
				getRawEntityRecord,
				getEntityRecord,
				getUserPatternCategories,
				getBlockPatternCategories,
			} = select( coreStore );
			const { get } = select( preferencesStore );
			const { getBlockTypes } = select( blocksStore );
			const { getBlocksByName, getBlockAttributes } =
				select( blockEditorStore );
			const siteSettings = canUser( 'read', {
				kind: 'root',
				name: 'site',
			} )
				? getEntityRecord( 'root', 'site' )
				: undefined;

			function getSectionRootBlock() {
				if ( renderingMode === 'template-locked' ) {
					return getBlocksByName( 'core/post-content' )?.[ 0 ] ?? '';
				}

				return (
					getBlocksByName( 'core/group' ).find(
						( clientId ) =>
							getBlockAttributes( clientId )?.tagName === 'main'
					) ?? ''
				);
			}

			return {
				allowRightClickOverrides: get(
					'core',
					'allowRightClickOverrides'
				),
				blockTypes: getBlockTypes(),
				canUseUnfilteredHTML: getRawEntityRecord(
					'postType',
					postType,
					postId
				)?._links?.hasOwnProperty( 'wp:action-unfiltered-html' ),
				focusMode: get( 'core', 'focusMode' ),
				hasFixedToolbar:
					get( 'core', 'fixedToolbar' ) || ! isLargeViewport,
				hiddenBlockTypes: get( 'core', 'hiddenBlockTypes' ),
				isDistractionFree: get( 'core', 'distractionFree' ),
				keepCaretInsideBlock: get( 'core', 'keepCaretInsideBlock' ),
				hasUploadPermissions:
					canUser( 'create', {
						kind: 'root',
						name: 'media',
					} ) ?? true,
				userCanCreatePages: canUser( 'create', {
					kind: 'postType',
					name: 'page',
				} ),
				pageOnFront: siteSettings?.page_on_front,
				pageForPosts: siteSettings?.page_for_posts,
				userPatternCategories: getUserPatternCategories(),
				restBlockPatternCategories: getBlockPatternCategories(),
				sectionRootClientId: getSectionRootBlock(),
			};
		},
		[ postType, postId, isLargeViewport, renderingMode ]
	);

	const { merged: mergedGlobalStyles } = useGlobalStylesContext();
	const globalStylesData = mergedGlobalStyles.styles ?? EMPTY_OBJECT;
	const globalStylesLinksData = mergedGlobalStyles._links ?? EMPTY_OBJECT;

	const settingsBlockPatterns =
		settings.__experimentalAdditionalBlockPatterns ?? // WP 6.0
		settings.__experimentalBlockPatterns; // WP 5.9
	const settingsBlockPatternCategories =
		settings.__experimentalAdditionalBlockPatternCategories ?? // WP 6.0
		settings.__experimentalBlockPatternCategories; // WP 5.9

	const blockPatterns = useMemo(
		() =>
			[ ...( settingsBlockPatterns || [] ) ].filter(
				( { postTypes } ) => {
					return (
						! postTypes ||
						( Array.isArray( postTypes ) &&
							postTypes.includes( postType ) )
					);
				}
			),
		[ settingsBlockPatterns, postType ]
	);

	const blockPatternCategories = useMemo(
		() =>
			[
				...( settingsBlockPatternCategories || [] ),
				...( restBlockPatternCategories || [] ),
			].filter(
				( x, index, arr ) =>
					index === arr.findIndex( ( y ) => x.name === y.name )
			),
		[ settingsBlockPatternCategories, restBlockPatternCategories ]
	);

	const { undo, setIsInserterOpened } = useDispatch( editorStore );

	const { saveEntityRecord } = useDispatch( coreStore );

	/**
	 * Creates a Post entity.
	 * This is utilised by the Link UI to allow for on-the-fly creation of Posts/Pages.
	 *
	 * @param {Object} options parameters for the post being created. These mirror those used on 3rd param of saveEntityRecord.
	 * @return {Object} the post type object that was created.
	 */
	const createPageEntity = useCallback(
		( options ) => {
			if ( ! userCanCreatePages ) {
				return Promise.reject( {
					message: __(
						'You do not have permission to create Pages.'
					),
				} );
			}
			return saveEntityRecord( 'postType', 'page', options );
		},
		[ saveEntityRecord, userCanCreatePages ]
	);

	const allowedBlockTypes = useMemo( () => {
		// Omit hidden block types if exists and non-empty.
		if ( hiddenBlockTypes && hiddenBlockTypes.length > 0 ) {
			// Defer to passed setting for `allowedBlockTypes` if provided as
			// anything other than `true` (where `true` is equivalent to allow
			// all block types).
			const defaultAllowedBlockTypes =
				true === settings.allowedBlockTypes
					? blockTypes.map( ( { name } ) => name )
					: settings.allowedBlockTypes || [];

			return defaultAllowedBlockTypes.filter(
				( type ) => ! hiddenBlockTypes.includes( type )
			);
		}

		return settings.allowedBlockTypes;
	}, [ settings.allowedBlockTypes, hiddenBlockTypes, blockTypes ] );

	const forceDisableFocusMode = settings.focusMode === false;

	return useMemo( () => {
		const blockEditorSettings = {
			...Object.fromEntries(
				Object.entries( settings ).filter( ( [ key ] ) =>
					BLOCK_EDITOR_SETTINGS.includes( key )
				)
			),
			[ globalStylesDataKey ]: globalStylesData,
			[ globalStylesLinksDataKey ]: globalStylesLinksData,
			allowedBlockTypes,
			allowRightClickOverrides,
			focusMode: focusMode && ! forceDisableFocusMode,
			hasFixedToolbar,
			isDistractionFree,
			keepCaretInsideBlock,
			mediaUpload: hasUploadPermissions ? mediaUpload : undefined,
			__experimentalBlockPatterns: blockPatterns,
			[ selectBlockPatternsKey ]: ( select ) => {
				const { hasFinishedResolution, getBlockPatternsForPostType } =
					unlock( select( coreStore ) );
				const patterns = getBlockPatternsForPostType( postType );
				return hasFinishedResolution( 'getBlockPatterns' )
					? patterns
					: undefined;
			},
			[ reusableBlocksSelectKey ]: __experimentalReusableBlocksSelect,
			__experimentalBlockPatternCategories: blockPatternCategories,
			__experimentalUserPatternCategories: userPatternCategories,
			__experimentalFetchLinkSuggestions: ( search, searchOptions ) =>
				fetchLinkSuggestions( search, searchOptions, settings ),
			inserterMediaCategories,
			__experimentalFetchRichUrlData: fetchUrlData,
			// Todo: This only checks the top level post, not the post within a template or any other entity that can be edited.
			// This might be better as a generic "canUser" selector.
			__experimentalCanUserUseUnfilteredHTML: canUseUnfilteredHTML,
			//Todo: this is only needed for native and should probably be removed.
			__experimentalUndo: undo,
			// Check whether we want all site editor frames to have outlines
			// including the navigation / pattern / parts editors.
			outlineMode: ! isDistractionFree && postType === 'wp_template',
			// Check these two properties: they were not present in the site editor.
			__experimentalCreatePageEntity: createPageEntity,
			__experimentalUserCanCreatePages: userCanCreatePages,
			pageOnFront,
			pageForPosts,
			__experimentalPreferPatternsOnRoot: postType === 'wp_template',
			templateLock:
				postType === 'wp_navigation' ? 'insert' : settings.templateLock,
			template:
				postType === 'wp_navigation'
					? [ [ 'core/navigation', {}, [] ] ]
					: settings.template,
			__experimentalSetIsInserterOpened: setIsInserterOpened,
			[ sectionRootClientIdKey ]: sectionRootClientId,
		};

		return blockEditorSettings;
	}, [
		allowedBlockTypes,
		allowRightClickOverrides,
		focusMode,
		forceDisableFocusMode,
		hasFixedToolbar,
		isDistractionFree,
		keepCaretInsideBlock,
		settings,
		hasUploadPermissions,
		userPatternCategories,
		blockPatterns,
		blockPatternCategories,
		canUseUnfilteredHTML,
		undo,
		createPageEntity,
		userCanCreatePages,
		pageOnFront,
		pageForPosts,
		postType,
		setIsInserterOpened,
		sectionRootClientId,
		globalStylesData,
		globalStylesLinksData,
	] );
}

export default useBlockEditorSettings;