JezK
Edit File: class-wp-block.php
<?php /** * Blocks API: WP_Block class * * @package WordPress * @since 5.5.0 */ /** * Class representing a parsed instance of a block. * * @since 5.5.0 * @property array $attributes */ #[AllowDynamicProperties] class WP_Block { /** * Original parsed array representation of block. * * @since 5.5.0 * @var array */ public $parsed_block; /** * Name of block. * * @example "core/paragraph" * * @since 5.5.0 * @var string */ public $name; /** * Block type associated with the instance. * * @since 5.5.0 * @var WP_Block_Type */ public $block_type; /** * Block context values. * * @since 5.5.0 * @var array */ public $context = array(); /** * All available context of the current hierarchy. * * @since 5.5.0 * @var array * @access protected */ protected $available_context; /** * Block type registry. * * @since 5.9.0 * @var WP_Block_Type_Registry * @access protected */ protected $registry; /** * List of inner blocks (of this same class) * * @since 5.5.0 * @var WP_Block_List */ public $inner_blocks = array(); /** * Resultant HTML from inside block comment delimiters after removing inner * blocks. * * @example "...Just <!-- wp:test /--> testing..." -> "Just testing..." * * @since 5.5.0 * @var string */ public $inner_html = ''; /** * List of string fragments and null markers where inner blocks were found * * @example array( * 'inner_html' => 'BeforeInnerAfter', * 'inner_blocks' => array( block, block ), * 'inner_content' => array( 'Before', null, 'Inner', null, 'After' ), * ) * * @since 5.5.0 * @var array */ public $inner_content = array(); /** * Constructor. * * Populates object properties from the provided block instance argument. * * The given array of context values will not necessarily be available on * the instance itself, but is treated as the full set of values provided by * the block's ancestry. This is assigned to the private `available_context` * property. Only values which are configured to consumed by the block via * its registered type will be assigned to the block's `context` property. * * @since 5.5.0 * * @param array $block Array of parsed block properties. * @param array $available_context Optional array of ancestry context values. * @param WP_Block_Type_Registry $registry Optional block type registry. */ public function __construct( $block, $available_context = array(), $registry = null ) { $this->parsed_block = $block; $this->name = $block['blockName']; if ( is_null( $registry ) ) { $registry = WP_Block_Type_Registry::get_instance(); } $this->registry = $registry; $this->block_type = $registry->get_registered( $this->name ); $this->available_context = $available_context; if ( ! empty( $this->block_type->uses_context ) ) { foreach ( $this->block_type->uses_context as $context_name ) { if ( array_key_exists( $context_name, $this->available_context ) ) { $this->context[ $context_name ] = $this->available_context[ $context_name ]; } } } if ( ! empty( $block['innerBlocks'] ) ) { $child_context = $this->available_context; if ( ! empty( $this->block_type->provides_context ) ) { foreach ( $this->block_type->provides_context as $context_name => $attribute_name ) { if ( array_key_exists( $attribute_name, $this->attributes ) ) { $child_context[ $context_name ] = $this->attributes[ $attribute_name ]; } } } $this->inner_blocks = new WP_Block_List( $block['innerBlocks'], $child_context, $registry ); } if ( ! empty( $block['innerHTML'] ) ) { $this->inner_html = $block['innerHTML']; } if ( ! empty( $block['innerContent'] ) ) { $this->inner_content = $block['innerContent']; } } /** * Returns a value from an inaccessible property. * * This is used to lazily initialize the `attributes` property of a block, * such that it is only prepared with default attributes at the time that * the property is accessed. For all other inaccessible properties, a `null` * value is returned. * * @since 5.5.0 * * @param string $name Property name. * @return array|null Prepared attributes, or null. */ public function __get( $name ) { if ( 'attributes' === $name ) { $this->attributes = isset( $this->parsed_block['attrs'] ) ? $this->parsed_block['attrs'] : array(); if ( ! is_null( $this->block_type ) ) { $this->attributes = $this->block_type->prepare_attributes_for_render( $this->attributes ); } return $this->attributes; } return null; } /** * Generates the render output for the block. * * @since 5.5.0 * * @param array $options { * Optional options object. * * @type bool $dynamic Defaults to 'true'. Optionally set to false to avoid using the block's render_callback. * } * @return string Rendered block output. */ public function render( $options = array() ) { global $post; $options = wp_parse_args( $options, array( 'dynamic' => true, ) ); $is_dynamic = $options['dynamic'] && $this->name && null !== $this->block_type && $this->block_type->is_dynamic(); $block_content = ''; if ( ! $options['dynamic'] || empty( $this->block_type->skip_inner_blocks ) ) { $index = 0; foreach ( $this->inner_content as $chunk ) { if ( is_string( $chunk ) ) { $block_content .= $chunk; } else { $inner_block = $this->inner_blocks[ $index ]; $parent_block = $this; /** This filter is documented in wp-includes/blocks.php */ $pre_render = apply_filters( 'pre_render_block', null, $inner_block->parsed_block, $parent_block ); if ( ! is_null( $pre_render ) ) { $block_content .= $pre_render; } else { $source_block = $inner_block->parsed_block; /** This filter is documented in wp-includes/blocks.php */ $inner_block->parsed_block = apply_filters( 'render_block_data', $inner_block->parsed_block, $source_block, $parent_block ); /** This filter is documented in wp-includes/blocks.php */ $inner_block->context = apply_filters( 'render_block_context', $inner_block->context, $inner_block->parsed_block, $parent_block ); $block_content .= $inner_block->render(); } $index++; } } } if ( $is_dynamic ) { $global_post = $post; $parent = WP_Block_Supports::$block_to_render; WP_Block_Supports::$block_to_render = $this->parsed_block; $block_content = (string) call_user_func( $this->block_type->render_callback, $this->attributes, $block_content, $this ); WP_Block_Supports::$block_to_render = $parent; $post = $global_post; } if ( ( ! empty( $this->block_type->script_handles ) ) ) { foreach ( $this->block_type->script_handles as $script_handle ) { wp_enqueue_script( $script_handle ); } } if ( ! empty( $this->block_type->view_script_handles ) ) { foreach ( $this->block_type->view_script_handles as $view_script_handle ) { wp_enqueue_script( $view_script_handle ); } } if ( ( ! empty( $this->block_type->style_handles ) ) ) { foreach ( $this->block_type->style_handles as $style_handle ) { wp_enqueue_style( $style_handle ); } } /** * Filters the content of a single block. * * @since 5.0.0 * @since 5.9.0 The `$instance` parameter was added. * * @param string $block_content The block content. * @param array $block The full block, including name and attributes. * @param WP_Block $instance The block instance. */ $block_content = apply_filters( 'render_block', $block_content, $this->parsed_block, $this ); /** * Filters the content of a single block. * * The dynamic portion of the hook name, `$name`, refers to * the block name, e.g. "core/paragraph". * * @since 5.7.0 * @since 5.9.0 The `$instance` parameter was added. * * @param string $block_content The block content. * @param array $block The full block, including name and attributes. * @param WP_Block $instance The block instance. */ $block_content = apply_filters( "render_block_{$this->name}", $block_content, $this->parsed_block, $this ); return $block_content; } }