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Apply the pre_render_block, render_block_data, and render_block_context filters when rendering inner/nested blocks. Introdices another param to these filters: $parent_block that is the "parent" WP_Block instance for nested blocks and null for top level blocks. Adds unit tests for the filters.

Browse Source 
Props noisysocks, gaambo, azaozz.
Fixes #51612.

git-svn-id: https://develop.svn.wordpress.org/trunk@51894 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Andrew Ozz
2021-10-06 18:47:09 +00:00
parent 411eaea04f
commit ed9f437fc0
3 changed files with 90 additions and 12 deletions
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40
src/wp-includes/class-wp-block.php
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@@ -57,6 +57,15 @@ class WP_Block {
*/
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)
*
@@ -115,6 +124,8 @@ class WP_Block {
$registry = WP_Block_Type_Registry::get_instance();
}
$this->registry = $registry;
$this->block_type = $registry->get_registered( $this->name );
$this->available_context = $available_context;
@@ -205,10 +216,33 @@ class WP_Block {
if ( ! $options['dynamic'] || empty( $this->block_type->skip_inner_blocks ) ) {
$index = 0;
foreach ( $this->inner_content as $chunk ) {
$block_content .= is_string( $chunk ) ?
$chunk :
$this->inner_blocks[ $index++ ]->render();
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++;
}
}
}