WP_Navigation_Block_Renderer::disable_overlay_menu_for_nested_navigation_blocks( array $blocks ): array

378	private static function disable_overlay_menu_for_nested_navigation_blocks( $blocks ) {379		if ( empty( $blocks ) || ! is_array( $blocks ) ) {380			return $blocks;381		}382 383		foreach ( $blocks as &$block ) {384			if ( ! isset( $block['blockName'] ) ) {385				continue;386			}387 388			// If this is a navigation block, disable its overlay menu.389			if ( 'core/navigation' === $block['blockName'] ) {390				if ( ! isset( $block['attrs'] ) ) {391					$block['attrs'] = array();392				}393				$block['attrs']['overlayMenu'] = 'never';394				// Mark this as a nested navigation within an overlay template part395				// so we can handle its rendering differently.396				$block['attrs']['_isWithinOverlayTemplatePart'] = true;397			}398 399			// Recursively process inner blocks.400			if ( ! empty( $block['innerBlocks'] ) && is_array( $block['innerBlocks'] ) ) {401				$block['innerBlocks'] = static::disable_overlay_menu_for_nested_navigation_blocks( $block['innerBlocks'] );402			}403		}404 405		return $blocks;406	}