From b3e36aa1452fcc47a7aed590bf0af71cd9da0556 Mon Sep 17 00:00:00 2001
From: jarommadsen <jarommadsen@users.noreply.github.com>
Date: Sun, 2 Jun 2024 13:01:03 -0600
Subject: [PATCH] Wrap around to next row on tab (#395)

Co-authored-by: Jarom Madsen <jarom@decisely.com>
---
 src/reducer.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/reducer.ts b/src/reducer.ts
index 21a87eb9..cb370e6f 100644
--- a/src/reducer.ts
+++ b/src/reducer.ts
@@ -412,9 +412,12 @@ export const go =
     if (!state.active) {
       return;
     }
+    const size = Matrix.getSize(state.model.data);
+    const newColumn = state.active.column + columnDelta;
+    const shouldWrap = newColumn >= size.columns;
     const nextActive = {
-      row: state.active.row + rowDelta,
-      column: state.active.column + columnDelta,
+      row: state.active.row + rowDelta + (shouldWrap ? 1 : 0),
+      column: (state.active.column + columnDelta) % size.columns,
     };
     if (!Matrix.has(nextActive, state.model.data)) {
       return { ...state, mode: "view" };