From e3c5b6179d34e8528ead3a71b87f926faf3a3a11 Mon Sep 17 00:00:00 2001
From: Kenta Kishikawa <k1saku.philosophyz@gmail.com>
Date: Sun, 14 Jan 2024 20:44:57 +0900
Subject: [PATCH] fix(Mac): horizontal scrolling when shift key is held

---
 packages/web/src/datagrid/DataGridCore.svelte | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/web/src/datagrid/DataGridCore.svelte b/packages/web/src/datagrid/DataGridCore.svelte
index 8ab9cf656e..0fa1139797 100644
--- a/packages/web/src/datagrid/DataGridCore.svelte
+++ b/packages/web/src/datagrid/DataGridCore.svelte
@@ -1272,7 +1272,11 @@
 
   function handleGridWheel(event) {
     if (event.shiftKey) {
-      scrollHorizontal(event.deltaY, event.deltaX);
+      // Convert vertical scrolling to horizontal if shift key is held down.
+			// This is handled at a higher level on MacOS.
+      const shiftConvert = !isMac();
+      const [dx, dy] = shiftConvert ? [event.deltaY, event.deltaX] : [event.deltaX, event.deltaY];
+      scrollHorizontal(dx, dy);
     } else {
       scrollHorizontal(event.deltaX, event.deltaY);
       scrollVertical(event.deltaX, event.deltaY);