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Add registered_block_type action, register clearing Theme JSON cache to fix global styles issue #3392

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Add registered_block_type action, register clearing Theme JSON cache to fix global styles issue #3392

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02e2600
Theme JSON and Resolver: Update block caching logic to clear based on…
andrewserong Sep 30, 2022
2e1c4a8
Attempt to clear cache whenever blocks are registered
andrewserong Oct 3, 2022
2002af5
Tidy up
andrewserong Oct 3, 2022
953f969
Try: Add registered_block_type actions
andrewserong Oct 3, 2022
76fdfe7
Move actions to the registry class
andrewserong Oct 4, 2022
5782aa3
Empty commit to restart tests
andrewserong Oct 4, 2022
a7b7021
Update comments
andrewserong Oct 4, 2022
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26 changes: 24 additions & 2 deletions src/wp-includes/blocks.php
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Original file line number Diff line number Diff line change
Expand Up @@ -497,10 +497,21 @@ function register_block_type_from_metadata( $file_or_folder, $args = array() ) {
$metadata
);

return WP_Block_Type_Registry::get_instance()->register(
$block = WP_Block_Type_Registry::get_instance()->register(
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$metadata['name'],
$settings
);

/**
* Fires after a block type is registered.
*
* @since 6.1.0
*
* @param WP_Block_Type|false $block The registered block type on success, or false on failure.
*/
do_action( 'registered_block_type', $block );

return $block;
}

/**
Expand All @@ -526,7 +537,18 @@ function register_block_type( $block_type, $args = array() ) {
return register_block_type_from_metadata( $block_type, $args );
}

return WP_Block_Type_Registry::get_instance()->register( $block_type, $args );
$block = WP_Block_Type_Registry::get_instance()->register( $block_type, $args );

/**
* Fires after a block type is registered.
*
* @since 6.1.0
*
* @param WP_Block_Type|false $block The registered block type on success, or false on failure.
*/
do_action( 'registered_block_type', $block );

return $block;
}

/**
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9 changes: 9 additions & 0 deletions src/wp-includes/class-wp-theme-json.php
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Expand Up @@ -690,6 +690,15 @@ protected static function append_to_selector( $selector, $to_append, $position =
return implode( ',', $new_selectors );
}

/**
* Cleans the cached data so it can be recalculated.
*
* @since 6.1.0
*/
public static function clean_cached_data() {
static::$blocks_metadata = null;
}

/**
* Returns the metadata for each block.
*
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1 change: 1 addition & 0 deletions src/wp-includes/default-filters.php
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Expand Up @@ -352,6 +352,7 @@
add_action( 'after_switch_theme', '_wp_sidebars_changed' );
add_action( 'wp_print_styles', 'print_emoji_styles' );
add_action( 'plugins_loaded', '_wp_theme_json_webfonts_handler' );
add_filter( 'registered_block_type', 'wp_clean_theme_json_cache' );

if ( isset( $_GET['replytocom'] ) ) {
add_filter( 'wp_robots', 'wp_robots_no_robots' );
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10 changes: 10 additions & 0 deletions src/wp-includes/theme.php
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Expand Up @@ -147,6 +147,16 @@ function wp_clean_themes_cache( $clear_update_cache = true ) {
}
}

/**
* Clears the cache held by WP_Theme_JSON and WP_Theme_JSON_Resolver classes.
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It might be worth adding more documentation if this is a public function. I'm thinking along the lines of a brief detailing of the side effects calling this function will have.

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Thanks, I've added an extra line here to indicate what the function does. I found it hard to capture in a single sentence without falling into the trap of describing the particular use case with registered_block_type. Happy to expand on that if it's suitable, though.

*
* @since 6.1.0
*/
function wp_clean_theme_json_cache() {
WP_Theme_JSON::clean_cached_data();
WP_Theme_JSON_Resolver::clean_cached_data();
}

/**
* Whether a child theme is in use.
*
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