WP_Style_Engine::get_classnames( string $style_value, array $style_definition ): string[]

Source

protected static function get_classnames( $style_value, $style_definition ) {
	if ( empty( $style_value ) ) {
		return array();
	}

	$classnames = array();
	if ( ! empty( $style_definition['classnames'] ) ) {
		foreach ( $style_definition['classnames'] as $classname => $property_key ) {
			if ( true === $property_key ) {
				$classnames[] = $classname;
				continue;
			}

			$slug = static::get_slug_from_preset_value( $style_value, $property_key );

			if ( $slug ) {
				/*
				 * Right now we expect a classname pattern to be stored in BLOCK_STYLE_DEFINITIONS_METADATA.
				 * One day, if there are no stored schemata, we could allow custom patterns or
				 * generate classnames based on other properties
				 * such as a path or a value or a prefix passed in options.
				 */
				$classnames[] = strtr( $classname, array( '$slug' => $slug ) );
			}
		}
	}

	return $classnames;
}

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