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Edit File: class-wp-block-styles-registry.php
<?php /** * Blocks API: WP_Block_Styles_Registry class * * @package WordPress * @subpackage Blocks * @since 5.3.0 */ /** * Class used for interacting with block styles. * * @since 5.3.0 */ #[AllowDynamicProperties] final class WP_Block_Styles_Registry { /** * Registered block styles, as `$block_name => $block_style_name => $block_style_properties` multidimensional arrays. * * @since 5.3.0 * * @var array[] */ private $registered_block_styles = array(); /** * Container for the main instance of the class. * * @since 5.3.0 * * @var WP_Block_Styles_Registry|null */ private static $instance = null; /** * Registers a block style for the given block type. * * If the block styles are present in a standalone stylesheet, register it and pass * its handle as the `style_handle` argument. If the block styles should be inline, * use the `inline_style` argument. Usually, one of them would be used to pass CSS * styles. However, you could also skip them and provide CSS styles in any stylesheet * or with an inline tag. * * @since 5.3.0 * @since 6.6.0 Added ability to register style across multiple block types along with theme.json-like style data. * * @link https://developer.wordpress.org/block-editor/reference-guides/block-api/block-styles/ * * @param string|string[] $block_name Block type name including namespace or array of namespaced block type names. * @param array $style_properties { * Array containing the properties of the style. * * @type string $name The identifier of the style used to compute a CSS class. * @type string $label A human-readable label for the style. * @type string $inline_style Inline CSS code that registers the CSS class required * for the style. * @type string $style_handle The handle to an already registered style that should be * enqueued in places where block styles are needed. * @type bool $is_default Whether this is the default style for the block type. * @type array $style_data Theme.json-like object to generate CSS from. * } * @return bool True if the block style was registered with success and false otherwise. */ public function register( $block_name, $style_properties ) { if ( ! is_string( $block_name ) && ! is_array( $block_name ) ) { _doing_it_wrong( __METHOD__, __( 'Block name must be a string or array.' ), '6.6.0' ); return false; } if ( ! isset( $style_properties['name'] ) || ! is_string( $style_properties['name'] ) ) { _doing_it_wrong( __METHOD__, __( 'Block style name must be a string.' ), '5.3.0' ); return false; } if ( str_contains( $style_properties['name'], ' ' ) ) { _doing_it_wrong( __METHOD__, __( 'Block style name must not contain any spaces.' ), '5.9.0' ); return false; } $block_style_name = $style_properties['name']; $block_names = is_string( $block_name ) ? array( $block_name ) : $block_name; // Ensure there is a label defined. if ( empty( $style_properties['label'] ) ) { $style_properties['label'] = $block_style_name; } foreach ( $block_names as $name ) { if ( ! isset( $this->registered_block_styles[ $name ] ) ) { $this->registered_block_styles[ $name ] = array(); } $this->registered_block_styles[ $name ][ $block_style_name ] = $style_properties; } return true; } /** * Unregisters a block style of the given block type. * * @since 5.3.0 * * @param string $block_name Block type name including namespace. * @param string $block_style_name Block style name. * @return bool True if the block style was unregistered with success and false otherwise. */ public function unregister( $block_name, $block_style_name ) { if ( ! $this->is_registered( $block_name, $block_style_name ) ) { _doing_it_wrong( __METHOD__, /* translators: 1: Block name, 2: Block style name. */ sprintf( __( 'Block "%1$s" does not contain a style named "%2$s".' ), $block_name, $block_style_name ), '5.3.0' ); return false; } unset( $this->registered_block_styles[ $block_name ][ $block_style_name ] ); return true; } /** * Retrieves the properties of a registered block style for the given block type. * * @since 5.3.0 * * @param string $block_name Block type name including namespace. * @param string $block_style_name Block style name. * @return array|null Registered block style properties or `null` if the block style is not registered. */ public function get_registered( $block_name, $block_style_name ) { if ( ! $this->is_registered( $block_name, $block_style_name ) ) { return null; } return $this->registered_block_styles[ $block_name ][ $block_style_name ]; } /** * Retrieves all registered block styles. * * @since 5.3.0 * * @return array[] Array of arrays containing the registered block styles properties grouped by block type. */ public function get_all_registered() { return $this->registered_block_styles; } /** * Retrieves registered block styles for a specific block type. * * @since 5.3.0 * * @param string $block_name Block type name including namespace. * @return array[] Array whose keys are block style names and whose values are block style properties. */ public function get_registered_styles_for_block( $block_name ) { return $this->registered_block_styles[ $block_name ] ?? array(); } /** * Checks if a block style is registered for the given block type. * * @since 5.3.0 * * @param string|null $block_name Block type name including namespace. * @param string|null $block_style_name Block style name. * @return bool True if the block style is registered, false otherwise. */ public function is_registered( $block_name, $block_style_name ) { return isset( $block_name, $block_style_name, $this->registered_block_styles[ $block_name ][ $block_style_name ] ); } /** * Utility method to retrieve the main instance of the class. * * The instance will be created if it does not exist yet. * * @since 5.3.0 * * @return WP_Block_Styles_Registry The main instance. */ public static function get_instance() { if ( null === self::$instance ) { self::$instance = new self(); } return self::$instance; } }