From b9ef53da1221ac77b8885df0eda7440a2eab08b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Genevi=C3=A8ve=20Bastien?= <gbastien@versatic.net>
Date: Wed, 8 Jan 2025 10:31:09 -0500
Subject: [PATCH] paths: update layers when TransitPathEdit component is
 mounted

fixes #1178

The upgrade to React 19 seemingly changed the handling of events in such
a way that the path selection event is now handled before the
`TransitPathEdit` component is mounted, while it was handled after in
the React 16 version. So we call the `updateLayers` method at mount to
display the selected path.
---
 .../src/components/forms/path/TransitPathEdit.tsx               | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/transition-frontend/src/components/forms/path/TransitPathEdit.tsx b/packages/transition-frontend/src/components/forms/path/TransitPathEdit.tsx
index c5c8e502..fc053393 100644
--- a/packages/transition-frontend/src/components/forms/path/TransitPathEdit.tsx
+++ b/packages/transition-frontend/src/components/forms/path/TransitPathEdit.tsx
@@ -101,6 +101,8 @@ class TransitPathEdit extends SaveableObjectForm<Path, PathFormProps, PathFormSt
         serviceLocator.eventManager.on('waypoint.update', this.onUpdateWaypoint);
         serviceLocator.eventManager.on('waypoint.replaceByNodeId', this.onReplaceWaypointByNodeId);
         serviceLocator.eventManager.on('selected.updateLayers.path', this.updateLayers);
+        // Call the updateLayers method to display the path on the map, as the event may have been emitted before the listener was added
+        this.updateLayers();
         serviceLocator.keyboardManager.on('m', this.toggleTemporaryManualRouting);
     }