From 54e8c127b31175c2ab249b09094dee4762993abe Mon Sep 17 00:00:00 2001
From: David Kircos <davidkircos@gmail.com>
Date: Mon, 23 May 2022 11:39:38 -0600
Subject: [PATCH] fix multi cursor offscreen bug

---
 .../gridGL/interaction/ViewportEventRegister.tsx | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/core/gridGL/interaction/ViewportEventRegister.tsx b/src/core/gridGL/interaction/ViewportEventRegister.tsx
index 9d1f489f6a..bb4526a23a 100644
--- a/src/core/gridGL/interaction/ViewportEventRegister.tsx
+++ b/src/core/gridGL/interaction/ViewportEventRegister.tsx
@@ -17,13 +17,15 @@ export const ViewportEventRegister = (props: { viewport: Viewport }) => {
 
   // When the cursor moves ensure it is visible
   useEffect(() => {
-    viewport.ensureVisible(
-      interactionState.cursorPosition.x * CELL_WIDTH,
-      interactionState.cursorPosition.y * CELL_HEIGHT - 40,
-      CELL_WIDTH,
-      CELL_HEIGHT * 4,
-      false
-    );
+    // When multiCursor is visible don't force the single cursor to be visible
+    if (!interactionState.showMultiCursor)
+      viewport.ensureVisible(
+        interactionState.cursorPosition.x * CELL_WIDTH,
+        interactionState.cursorPosition.y * CELL_HEIGHT - 40,
+        CELL_WIDTH,
+        CELL_HEIGHT * 4,
+        false
+      );
   }, [viewport, interactionState]);
 
   // register zooming event listener to set Atom state