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73 changes: 62 additions & 11 deletions src/wp-includes/class-wp-block.php
Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ class WP_Block {
* @var array
* @access protected
*/
protected $available_context;
protected $available_context = array();

/**
* Block type registry.
Expand Down Expand Up @@ -140,6 +140,33 @@ public function __construct( $block, $available_context = array(), $registry = n

$this->available_context = $available_context;

$this->refresh_context_dependents();
$this->refresh_parsed_block_dependents();
}

/**
* Updates the context for the current block and its inner blocks.
*
* This method updates the block's `context` property by merging the available context from ancestor blocks
* with the block's own context values. It removes specific context keys (`postId` and `postType`) that should
* not be carried over. The block only consumes the context keys specified in its registered block type (`uses_context`).
*
* After updating its own context, the method also updates the context of inner blocks, if any, by passing down
* any context values the block provides (`provides_context`).
*
* If the block has inner blocks, the method recursively processes them by creating new instances of `WP_Block`
* for each inner block and updating their context based on the block's `provides_context` property.
*
* @since 6.7.0
*/
public function refresh_context_dependents() {
$this->context = $this->available_context;

// Remove "postId" and "postType" keys.
if ( isset( $this->context['postId'] ) || isset( $this->context['postType'] ) ) {
unset( $this->context['postId'], $this->context['postType'] );
}

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 ) ) {
Expand All @@ -148,26 +175,40 @@ public function __construct( $block, $available_context = array(), $registry = n
}
}

if ( ! empty( $block['innerBlocks'] ) ) {
$child_context = $this->available_context;

if ( ! empty( $this->parsed_block['innerBlocks'] ) ) {
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->available_context[ $context_name ] = $this->attributes[ $attribute_name ];
}
}
}
}
}

$this->inner_blocks = new WP_Block_List( $block['innerBlocks'], $child_context, $registry );
/**
* Updates the parsed block content for the current block and its inner blocks.
*
* This method sets the `inner_html` and `inner_content` properties of the block based on the parsed
* block content provided during initialization. It ensures that the block instance reflects the
* most up-to-date content for both the inner HTML and any string fragments around inner blocks.
*
* If the block has inner blocks, this method initializes a new `WP_Block_List` for them, ensuring the
* correct content and context are updated for each nested block.
*
* @since 6.7.0
*/
public function refresh_parsed_block_dependents() {
if ( ! empty( $this->parsed_block['innerBlocks'] ) ) {
$this->inner_blocks = new WP_Block_List( $this->parsed_block['innerBlocks'], $this->available_context, $this->registry );
}

if ( ! empty( $block['innerHTML'] ) ) {
$this->inner_html = $block['innerHTML'];
if ( ! empty( $this->parsed_block['innerHTML'] ) ) {
$this->inner_html = $this->parsed_block['innerHTML'];
}

if ( ! empty( $block['innerContent'] ) ) {
$this->inner_content = $block['innerContent'];
if ( ! empty( $this->parsed_block['innerContent'] ) ) {
$this->inner_content = $this->parsed_block['innerContent'];
}
}

Expand Down Expand Up @@ -506,14 +547,24 @@ public function render( $options = array() ) {
if ( ! is_null( $pre_render ) ) {
$block_content .= $pre_render;
} else {
$source_block = $inner_block->parsed_block;
$source_block = $inner_block->parsed_block;
$inner_block_context = $inner_block->context;

/** 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 );

if ( $inner_block->context !== $inner_block_context ) {
$inner_block->available_context = array_merge( $this->available_context, $inner_block->context );
$inner_block->refresh_context_dependents();
}

if ( $inner_block->parsed_block !== $source_block ) {
$inner_block->refresh_parsed_block_dependents();
}

$block_content .= $inner_block->render();
}

Expand Down