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Blocks: During traversal, allow post callback to modify block.

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Both the `$pre_callback` and `$post_callback` functions that are given as arguments to `traverse_and_serialize_block(s)` receive a reference to the current block as their first argument. However, while any changes that the "pre" callback makes to the block are reflected by the serialized markup, the same wasn't true for the "post" callback: Any changes that it made were only applied ''after'' the block had already been serialized.

This commit changes the behavior such that `$post_callback`'s changes to the current block are also reflected in the serialized markup.

See #59646.
Props gziolo.
Fixes #59669.
Built from https://develop.svn.wordpress.org/trunk@56970


git-svn-id: http://core.svn.wordpress.org/trunk@56481 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Bernhard Reiter 2023-10-18 19:32:23 +00:00
parent 1470782029
commit b0da2934b9
2 changed files with 10 additions and 7 deletions
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15
wp-includes/blocks.php
View File

@ -1062,18 +1062,20 @@ function traverse_and_serialize_block( $block, $pre_callback = null, $post_callb
);
}
$block_content .= traverse_and_serialize_block( $inner_block, $pre_callback, $post_callback );
if ( is_callable( $post_callback ) ) {
$next = count( $block['innerBlocks'] ) - 1 === $block_index
? null
: $block['innerBlocks'][ $block_index + 1 ];
$block_content .= call_user_func_array(
$post_markup = call_user_func_array(
$post_callback,
array( &$inner_block, $block, $next )
);
}
$block_content .= traverse_and_serialize_block( $inner_block, $pre_callback, $post_callback );
$block_content .= isset( $post_markup ) ? $post_markup : '';
++$block_index;
}
}
@ -1135,18 +1137,19 @@ function traverse_and_serialize_blocks( $blocks, $pre_callback = null, $post_cal
);
}
$result .= traverse_and_serialize_block( $block, $pre_callback, $post_callback );
if ( is_callable( $post_callback ) ) {
$next = count( $blocks ) - 1 === $index
? null
: $blocks[ $index + 1 ];
$result .= call_user_func_array(
$post_markup = call_user_func_array(
$post_callback,
array( &$block, null, $next ) // At the top level, there is no parent block to pass to the callback.
);
}
$result .= traverse_and_serialize_block( $block, $pre_callback, $post_callback );
$result .= isset( $post_markup ) ? $post_markup : '';
}
return $result;

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.5-alpha-56969';
$wp_version = '6.5-alpha-56970';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.