Returns a function that injects the theme attribute into, and hooked blocks before, a given block.
Description
The returned function can be used as $pre_callback argument to traverse_and_serialize_block(s), where it will inject the theme attribute into all Template Part blocks, and prepend the markup for any blocks hooked before the given block and as its parent’s first_child, respectively.
This function is meant for internal use only.
Parameters
$hooked_blocksarrayrequired- An array of blocks hooked to another given block.
$contextWP_Block_Template|WP_Post|arrayrequired- A block template, template part,
wp_navigationpost object, or pattern that the blocks belong to. $callbackcallableoptional- A function that will be called for each block to generate the markup for a given list of blocks that are hooked to it.
Default:'insert_hooked_blocks'.Default:
'insert_hooked_blocks'
Source
/*
* Skip meta generation if post type is not set.
*/
if ( ! isset( $post->post_type ) ) {
return $post;
}
$attributes = array();
$ignored_hooked_blocks = get_post_meta( $post->ID, '_wp_ignored_hooked_blocks', true );
if ( ! empty( $ignored_hooked_blocks ) ) {
$ignored_hooked_blocks = json_decode( $ignored_hooked_blocks, true );
$attributes['metadata'] = array(
'ignoredHookedBlocks' => $ignored_hooked_blocks,
);
}
if ( 'wp_navigation' === $post->post_type ) {
$wrapper_block_type = 'core/navigation';
} elseif ( 'wp_block' === $post->post_type ) {
$wrapper_block_type = 'core/block';
} else {
$wrapper_block_type = 'core/post-content';
}
$markup = get_comment_delimited_block_content(
$wrapper_block_type,
$attributes,
$post->post_content
);
$existing_post = get_post( $post->ID );
// Merge the existing post object with the updated post object to pass to the block hooks algorithm for context.
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