From 504a29f496263e164d99d88d098abfee752bd302 Mon Sep 17 00:00:00 2001
From: Matias Griese <matias@trilbymedia.com>
Date: Wed, 23 Dec 2020 14:09:55 +0200
Subject: [PATCH] Added support for relative paths in
 `PageObject::getLevelListing()` [#3110]

---
 CHANGELOG.md                                  |  1 +
 .../Common/Flex/Types/Pages/PageObject.php    | 20 ++++++++++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 041af2dd8..b84dca835 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 1. [](#improved)
     * Make it possible to use an absolute path when loading a blueprint
     * Make serialize methods final in `ContentBlock`, `AbstractFile`, `FormTrait`, `ObjectCollectionTrait` and `ObjectTrait`
+    * Added support for relative paths in `PageObject::getLevelListing()` [#3110](https://github.com/getgrav/grav/issues/3110)
 1. [](#bugfix)
     * Fixed port issue with `system.custom_base_url`
     * Hide errors with `exif_read_data` in `ImageFile`
diff --git a/system/src/Grav/Common/Flex/Types/Pages/PageObject.php b/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
index 6ad5d3e93..c88eb8f82 100644
--- a/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
+++ b/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
@@ -439,8 +439,26 @@ class PageObject extends FlexPageObject
     public function getLevelListing(array $options): array
     {
         $index = $this->getFlexDirectory()->getIndex();
+        if (!is_callable([$index, 'getLevelListing'])) {
+            return [];
+        }
 
-        return method_exists($index, 'getLevelListing') ? $index->getLevelListing($options) : [];
+        // Deal with relative paths.
+        $initial = $options['initial'] ?? null;
+        $var = $initial ? 'leaf_route' : 'route';
+        $route = $options[$var] ?? '';
+        if ($route !== '' && !str_starts_with($route, '/')) {
+            $filesystem = Filesystem::getInstance();
+
+            $route = "/{$this->getKey()}/{$route}";
+            $route = $filesystem->normalize($route);
+
+            $options[$var] = $route;
+        }
+
+        [$status, $message, $response,] = $index->getLevelListing($options);
+
+        return [$status, $message, $response, $options[$var] ?? null];
     }
 
     /**