From a3da48f689d2b6a106b4f3108218a2870a9f2833 Mon Sep 17 00:00:00 2001
From: newraina <newraina@users.noreply.github.com>
Date: Thu, 1 Jan 2026 15:51:23 +0800
Subject: [PATCH] fix: prevent context menu position override on first click

Initialize lastScale/lastOffset* to current canvas transform values
when opening menu, preventing updateMenuPosition from overwriting
PrimeVue's flip-adjusted position on the first RAF tick.
---
 src/components/graph/NodeContextMenu.vue | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/components/graph/NodeContextMenu.vue b/src/components/graph/NodeContextMenu.vue
index 8382a43ece1..97ee1b9c99e 100644
--- a/src/components/graph/NodeContextMenu.vue
+++ b/src/components/graph/NodeContextMenu.vue
@@ -220,6 +220,12 @@ function show(event: MouseEvent) {
     y: screenY / scale - offset[1]
   }
 
+  // Initialize last* values to current transform to prevent updateMenuPosition
+  // from overwriting PrimeVue's flip-adjusted position on the first RAF tick
+  lastScale = scale
+  lastOffsetX = offset[0]
+  lastOffsetY = offset[1]
+
   isOpen.value = true
   contextMenu.value?.show(event)
 }