Migrate theme.json based on origin (#62305)

Co-authored-by: ajlende <ajlende@git.wordpress.org>
Co-authored-by: oandregal <oandregal@git.wordpress.org>

backport-changelog/6.6/6737.md

@@ -0,0 +1,3 @@
+https://github.com/WordPress/wordpress-develop/pull/6737
+
+* https://github.com/WordPress/gutenberg/pull/62305

lib/class-wp-theme-json-gutenberg.php

@@ -734,14 +734,14 @@ public static function get_element_class_name( $element ) {
 	 *
 	 * @param array  $theme_json A structure that follows the theme.json schema.
 	 * @param string $origin     Optional. What source of data this object represents.
-	 *                           One of 'default', 'theme', or 'custom'. Default 'theme'.
+	 *                           One of 'blocks', 'default', 'theme', or 'custom'. Default 'theme'.
 	 */
 	public function __construct( $theme_json = array( 'version' => WP_Theme_JSON_Gutenberg::LATEST_SCHEMA ), $origin = 'theme' ) {
 		if ( ! in_array( $origin, static::VALID_ORIGINS, true ) ) {
 			$origin = 'theme';
 		}
 
-		$this->theme_json    = WP_Theme_JSON_Schema_Gutenberg::migrate( $theme_json );
+		$this->theme_json    = WP_Theme_JSON_Schema_Gutenberg::migrate( $theme_json, $origin );
 		$registry            = WP_Block_Type_Registry::get_instance();
 		$valid_block_names   = array_keys( $registry->get_all_registered() );
 		$valid_element_names = array_keys( static::ELEMENTS );
@@ -3278,15 +3278,21 @@ protected static function filter_slugs( $node, $slugs ) {
 	 * Removes insecure data from theme.json.
 	 *
 	 * @since 5.9.0
-	 * @since 6.6.0 Added support for block style variation element styles.
+	 * @since 6.6.0 Added support for block style variation element styles and $origin parameter.
 	 *
 	 * @param array $theme_json Structure to sanitize.
+	 * @param string $origin    Optional. What source of data this object represents.
+	 *                          One of 'blocks', 'default', 'theme', or 'custom'. Default 'theme'.
 	 * @return array Sanitized structure.
 	 */
-	public static function remove_insecure_properties( $theme_json ) {
+	public static function remove_insecure_properties( $theme_json, $origin = 'theme' ) {
+		if ( ! in_array( $origin, static::VALID_ORIGINS, true ) ) {
+			$origin = 'theme';
+		}
+
 		$sanitized = array();
 
-		$theme_json = WP_Theme_JSON_Schema_Gutenberg::migrate( $theme_json );
+		$theme_json = WP_Theme_JSON_Schema_Gutenberg::migrate( $theme_json, $origin );
 
 		$valid_block_names   = array_keys( static::get_blocks_metadata() );
 		$valid_element_names = array_keys( static::ELEMENTS );

lib/class-wp-theme-json-resolver-gutenberg.php

@@ -534,18 +534,14 @@ public static function get_user_data() {
 				isset( $decoded_data['isGlobalStylesUserThemeJSON'] ) &&
 				$decoded_data['isGlobalStylesUserThemeJSON']
 			) {
+				unset( $decoded_data['isGlobalStylesUserThemeJSON'] );
 				$config = $decoded_data;
 			}
 		}
 
 		/** This filter is documented in wp-includes/class-wp-theme-json-resolver.php */
-		$theme_json = apply_filters( 'wp_theme_json_data_user', new WP_Theme_JSON_Data_Gutenberg( $config, 'custom' ) );
-		$config     = $theme_json->get_data();
-
-		// Needs to be set for schema migrations of user data.
-		$config['isGlobalStylesUserThemeJSON'] = true;
-
-		static::$user = new WP_Theme_JSON_Gutenberg( $config, 'custom' );
+		$theme_json   = apply_filters( 'wp_theme_json_data_user', new WP_Theme_JSON_Data_Gutenberg( $config, 'custom' ) );
+		static::$user = $theme_json->get_theme_json();
 
 		return static::$user;
 	}

lib/class-wp-theme-json-schema-gutenberg.php

@@ -40,11 +40,13 @@ class WP_Theme_JSON_Schema_Gutenberg {
 	 * @since 5.9.0
 	 * @since 6.6.0 Migrate up to v3.
 	 *
-	 * @param array $theme_json The structure to migrate.
+	 * @param array  $theme_json The structure to migrate.
+	 * @param string $origin     Optional. What source of data this object represents.
+	 *                           One of 'blocks', 'default', 'theme', or 'custom'. Default 'theme'.
 	 *
 	 * @return array The structure in the last version.
 	 */
-	public static function migrate( $theme_json ) {
+	public static function migrate( $theme_json, $origin = 'theme' ) {
 		if ( ! isset( $theme_json['version'] ) ) {
 			$theme_json = array(
 				'version' => WP_Theme_JSON::LATEST_SCHEMA,
@@ -57,7 +59,7 @@ public static function migrate( $theme_json ) {
 				$theme_json = self::migrate_v1_to_v2( $theme_json );
 				// Deliberate fall through. Once migrated to v2, also migrate to v3.
 			case 2:
-				$theme_json = self::migrate_v2_to_v3( $theme_json );
+				$theme_json = self::migrate_v2_to_v3( $theme_json, $origin );
 		}
 
 		return $theme_json;
@@ -103,11 +105,12 @@ private static function migrate_v1_to_v2( $old ) {
 	 *
 	 * @since 6.6.0
 	 *
-	 * @param array $old Data to migrate.
-	 *
+	 * @param array $old     Data to migrate.
+	 * @param string $origin What source of data this object represents.
+	 *                       One of 'blocks', 'default', 'theme', or 'custom'.
 	 * @return array Data with defaultFontSizes set to false.
 	 */
-	private static function migrate_v2_to_v3( $old ) {
+	private static function migrate_v2_to_v3( $old, $origin ) {
 		// Copy everything.
 		$new = $old;
 
@@ -118,10 +121,7 @@ private static function migrate_v2_to_v3( $old ) {
 		 * Remaining changes do not need to be applied to the custom origin,
 		 * as they should take on the value of the theme origin.
 		 */
-		if (
-			isset( $new['isGlobalStylesUserThemeJSON'] ) &&
-			true === $new['isGlobalStylesUserThemeJSON']
-		) {
+		if ( 'custom' === $origin ) {
 			return $new;
 		}
 

lib/experimental/kses.php

@@ -31,7 +31,7 @@ function gutenberg_filter_global_styles_post( $data ) {
 	) {
 		unset( $decoded_data['isGlobalStylesUserThemeJSON'] );
 
-		$data_to_encode = WP_Theme_JSON_Gutenberg::remove_insecure_properties( $decoded_data );
+		$data_to_encode = WP_Theme_JSON_Gutenberg::remove_insecure_properties( $decoded_data, 'custom' );
 
 		$data_to_encode['isGlobalStylesUserThemeJSON'] = true;
 		return wp_slash( wp_json_encode( $data_to_encode ) );