From 8d815269ddc69553ca2182e826b522917827122a Mon Sep 17 00:00:00 2001
From: Ari Stathopoulos <aristath@gmail.com>
Date: Tue, 3 May 2022 10:14:56 +0300
Subject: [PATCH] Add a current-menu-ancestor class to menus

---
 packages/block-library/src/navigation-submenu/index.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/block-library/src/navigation-submenu/index.php b/packages/block-library/src/navigation-submenu/index.php
index 2eba72bcbc5541..659a75cb6c6370 100644
--- a/packages/block-library/src/navigation-submenu/index.php
+++ b/packages/block-library/src/navigation-submenu/index.php
@@ -239,6 +239,10 @@ function render_block_core_navigation_submenu( $attributes, $content, $block ) {
 			$inner_blocks_html .= $inner_block->render();
 		}
 
+		if ( strpos( $inner_blocks_html, 'current-menu-item' ) ) {
+			$html = str_replace( 'wp-block-navigation-item__content', 'wp-block-navigation-item__content current-menu-ancestor', $html );
+		}
+
 		$html .= sprintf(
 			'<ul class="wp-block-navigation__submenu-container">%s</ul>',
 			$inner_blocks_html