packages/preferences-persistence/src/index.js - trunk - githubmirror/gutenberg

packages/preferences-persistence/src/index.js

47 строк2 KB

Marco Ciampini

ESLint: Replace strict config with bulk suppressions (#81248)

07 авг 2026, 14:34

07 авг 2026, 14:347f43eaf

import create from './create';
import convertLegacyLocalStorageData from './migrations/legacy-local-storage-data';
import convertPreferencesPackageData from './migrations/preferences-package-data';

export { create };

/**
 * Creates the persistence layer with preloaded data.
 *
 * It prioritizes any data from the server, but falls back first to localStorage
 * restore data, and then to any legacy data.
 *
 * This function is used internally by WordPress in an inline script, so
 * prefixed with `__unstable`.
 *
 * @param {Object} serverData Preferences data preloaded from the server.
 * @param {string} userId     The user id.
 *
 * @return {Object} The persistence layer initialized with the preloaded data.
 */
export function __unstableCreatePersistenceLayer( serverData, userId ) {
	const localStorageRestoreKey = `WP_PREFERENCES_USER_${ userId }`;
	const localData = JSON.parse(
		window.localStorage.getItem( localStorageRestoreKey )
	);

	// Date parse returns NaN for invalid input. Coerce anything invalid
	// into a conveniently comparable zero.
	const serverModified =
		Date.parse( serverData && serverData._modified ) || 0;
	const localModified = Date.parse( localData && localData._modified ) || 0;

	let preloadedData;
	if ( serverData && serverModified >= localModified ) {
		preloadedData = convertPreferencesPackageData( serverData );
	} else if ( localData ) {
		preloadedData = convertPreferencesPackageData( localData );
	} else {
		// Check if there is data in the legacy format from the old persistence system.
		preloadedData = convertLegacyLocalStorageData( userId );
	}

	return create( {
		preloadedData,
		localStorageRestoreKey,
	} );
}