diff --git a/src/wp-includes/blocks.php b/src/wp-includes/blocks.php index 07bbd5ab01c19..bef4ea3bce6e8 100644 --- a/src/wp-includes/blocks.php +++ b/src/wp-includes/blocks.php @@ -739,6 +739,27 @@ function get_dynamic_block_names() { return $dynamic_block_names; } +/** + * Retrieves block types (and positions) hooked into the given block. + * + * @since 6.4.0 + * + * @param string $name Block type name including namespace. + * @return array Associative array of `$block_type_name => $position` pairs. + */ +function get_hooked_blocks( $name ) { + $block_types = WP_Block_Type_Registry::get_instance()->get_all_registered(); + $hooked_blocks = array(); + foreach ( $block_types as $block_type ) { + foreach ( $block_type->block_hooks as $anchor_block_type => $relative_position ) { + if ( $anchor_block_type === $name ) { + $hooked_blocks[ $block_type->name ] = $relative_position; + } + } + } + return $hooked_blocks; +} + /** * Given an array of attributes, returns a string in the serialized attributes * format prepared for post content. diff --git a/tests/phpunit/tests/blocks/blockHooks.php b/tests/phpunit/tests/blocks/blockHooks.php new file mode 100644 index 0000000000000..2d5fbb6e9bd85 --- /dev/null +++ b/tests/phpunit/tests/blocks/blockHooks.php @@ -0,0 +1,100 @@ +is_registered( $block_name ) ) { + $registry->unregister( $block_name ); + } + } + + parent::tear_down(); + } + + /** + * @ticket 59383 + * + * @covers ::get_hooked_blocks + */ + public function test_get_hooked_blocks_no_match_found() { + $result = get_hooked_blocks( 'tests/no-hooked-blocks' ); + + $this->assertSame( array(), $result ); + } + + /** + * @ticket 59383 + * + * @covers ::get_hooked_blocks + */ + public function test_get_hooked_blocks_matches_found() { + register_block_type( + 'tests/injected-one', + array( + 'block_hooks' => array( + 'tests/hooked-at-before' => 'before', + 'tests/hooked-at-after' => 'after', + ), + ) + ); + register_block_type( + 'tests/injected-two', + array( + 'block_hooks' => array( + 'tests/hooked-at-before' => 'before', + 'tests/hooked-at-after' => 'after', + 'tests/hooked-at-first-child' => 'first_child', + 'tests/hooked-at-last-child' => 'last_child', + ), + ) + ); + + $this->assertSame( + array( + 'tests/injected-one' => 'before', + 'tests/injected-two' => 'before', + ), + get_hooked_blocks( 'tests/hooked-at-before' ), + 'block hooked at the before position' + ); + $this->assertSame( + array( + 'tests/injected-one' => 'after', + 'tests/injected-two' => 'after', + ), + get_hooked_blocks( 'tests/hooked-at-after' ), + 'block hooked at the after position' + ); + $this->assertSame( + array( + 'tests/injected-two' => 'first_child', + ), + get_hooked_blocks( 'tests/hooked-at-first-child' ), + 'block hooked at the first child position' + ); + $this->assertSame( + array( + 'tests/injected-two' => 'last_child', + ), + get_hooked_blocks( 'tests/hooked-at-last-child' ), + 'block hooked at the last child position' + ); + } +}