nesting. Any `.kb-row-layout-wrap` that has a `.kb-row-layout-wrap` * ancestor is a nested row → we add `bw-inside-row` to it. This is DOM-accurate * regardless of how the inner row got rendered (columns, custom blocks, popups), * unlike a positional render_block pass. Scope is the page content, which is * where authors build complex nested layouts (header/footer nav elements are * intentionally left alone). * * @package Kadence-Child */ if ( ! defined( 'ABSPATH' ) ) { exit; } /** * @param string $content Rendered post content (after do_blocks). * @return string */ function bw_inside_row_tag_nested( $content ) { // Main singular content only (mirrors the hero filter's guard); skip admin, // feeds, widgets, secondary queries. if ( is_admin() || ! in_the_loop() || ! is_main_query() ) { return $content; } // Cheap bail-outs: need at least two row wrappers to have any nesting, and // the tag processor to be available (WP 6.2+). if ( substr_count( $content, 'kb-row-layout-wrap' ) < 2 || ! class_exists( 'WP_HTML_Tag_Processor' ) ) { return $content; } $p = new WP_HTML_Tag_Processor( $content ); $depth = 0; // current

nesting depth $row_depths = array(); // depths at which a row wrapper is currently open $changed = false; while ( $p->next_tag( array( 'tag_name' => 'DIV', 'tag_closers' => 'visit' ) ) ) { if ( $p->is_tag_closer() ) { if ( ! empty( $row_depths ) && (int) end( $row_depths ) === $depth ) { array_pop( $row_depths ); } $depth--; continue; } $depth++; $class = $p->get_attribute( 'class' ); if ( is_string( $class ) && preg_match( '/\bkb-row-layout-wrap\b/', $class ) ) { // A row wrapper that already sits inside another row wrapper → nested. if ( ! empty( $row_depths ) && false === strpos( $class, 'bw-inside-row' ) ) { $p->add_class( 'bw-inside-row' ); $changed = true; } $row_depths[] = $depth; } } return $changed ? $p->get_updated_html() : $content; } // Priority 99: after do_blocks (9) and the hero prepend (20), so we see the // fully rendered content. add_filter( 'the_content', 'bw_inside_row_tag_nested', 99 );