154 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			154 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
<?php
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/**
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 * WP_Theme_JSON_Schema class
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 *
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 * @package WordPress
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 * @subpackage Theme
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 * @since 5.9.0
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 */
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/**
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 * Class that migrates a given theme.json structure to the latest schema.
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 *
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 * This class is for internal core usage and is not supposed to be used by extenders (plugins and/or themes).
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 * This is a low-level API that may need to do breaking changes. Please,
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 * use get_global_settings, get_global_styles, and get_global_stylesheet instead.
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 *
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 * @since 5.9.0
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 * @access private
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 */
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#[AllowDynamicProperties]
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class WP_Theme_JSON_Schema {
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	/**
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	 * Maps old properties to their new location within the schema's settings.
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	 * This will be applied at both the defaults and individual block levels.
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	 */
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	const V1_TO_V2_RENAMED_PATHS = array(
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		'border.customRadius'         => 'border.radius',
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		'spacing.customMargin'        => 'spacing.margin',
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		'spacing.customPadding'       => 'spacing.padding',
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		'typography.customLineHeight' => 'typography.lineHeight',
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	);
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	/**
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	 * Function that migrates a given theme.json structure to the last version.
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	 *
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	 * @since 5.9.0
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	 *
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	 * @param array $theme_json The structure to migrate.
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	 *
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	 * @return array The structure in the last version.
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	 */
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	public static function migrate( $theme_json ) {
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		if ( ! isset( $theme_json['version'] ) ) {
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			$theme_json = array(
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				'version' => WP_Theme_JSON::LATEST_SCHEMA,
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			);
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		}
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		if ( 1 === $theme_json['version'] ) {
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			$theme_json = self::migrate_v1_to_v2( $theme_json );
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		}
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		return $theme_json;
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	}
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	/**
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	 * Removes the custom prefixes for a few properties
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	 * that were part of v1:
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	 *
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	 * 'border.customRadius'         => 'border.radius',
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	 * 'spacing.customMargin'        => 'spacing.margin',
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	 * 'spacing.customPadding'       => 'spacing.padding',
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	 * 'typography.customLineHeight' => 'typography.lineHeight',
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	 *
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	 * @since 5.9.0
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	 *
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	 * @param array $old Data to migrate.
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	 *
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	 * @return array Data without the custom prefixes.
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	 */
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	private static function migrate_v1_to_v2( $old ) {
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		// Copy everything.
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		$new = $old;
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		// Overwrite the things that changed.
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		if ( isset( $old['settings'] ) ) {
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			$new['settings'] = self::rename_paths( $old['settings'], self::V1_TO_V2_RENAMED_PATHS );
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		}
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		// Set the new version.
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		$new['version'] = 2;
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		return $new;
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	}
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	/**
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	 * Processes the settings subtree.
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	 *
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	 * @since 5.9.0
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	 *
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	 * @param array $settings        Array to process.
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	 * @param array $paths_to_rename Paths to rename.
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	 *
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	 * @return array The settings in the new format.
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	 */
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	private static function rename_paths( $settings, $paths_to_rename ) {
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		$new_settings = $settings;
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		// Process any renamed/moved paths within default settings.
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		self::rename_settings( $new_settings, $paths_to_rename );
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		// Process individual block settings.
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		if ( isset( $new_settings['blocks'] ) && is_array( $new_settings['blocks'] ) ) {
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			foreach ( $new_settings['blocks'] as &$block_settings ) {
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				self::rename_settings( $block_settings, $paths_to_rename );
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			}
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		}
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		return $new_settings;
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	}
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	/**
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	 * Processes a settings array, renaming or moving properties.
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	 *
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	 * @since 5.9.0
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	 *
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	 * @param array $settings        Reference to settings either defaults or an individual block's.
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	 * @param array $paths_to_rename Paths to rename.
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	 */
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	private static function rename_settings( &$settings, $paths_to_rename ) {
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		foreach ( $paths_to_rename as $original => $renamed ) {
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			$original_path = explode( '.', $original );
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			$renamed_path  = explode( '.', $renamed );
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			$current_value = _wp_array_get( $settings, $original_path, null );
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			if ( null !== $current_value ) {
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				_wp_array_set( $settings, $renamed_path, $current_value );
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				self::unset_setting_by_path( $settings, $original_path );
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			}
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		}
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	}
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	/**
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	 * Removes a property from within the provided settings by its path.
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	 *
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	 * @since 5.9.0
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	 *
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	 * @param array $settings Reference to the current settings array.
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	 * @param array $path Path to the property to be removed.
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	 *
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	 * @return void
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	 */
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	private static function unset_setting_by_path( &$settings, $path ) {
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		$tmp_settings = &$settings; // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
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		$last_key     = array_pop( $path );
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		foreach ( $path as $key ) {
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			$tmp_settings = &$tmp_settings[ $key ];
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		}
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		unset( $tmp_settings[ $last_key ] );
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	}
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}
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