From 719abab5bd34d06113537c53c93f447d1bdc2fa0 Mon Sep 17 00:00:00 2001
From: Simon Hong <shong@brave.com>
Date: Wed, 18 Dec 2024 18:06:16 +0900
Subject: [PATCH] Hide split view separator when hovered

fix https://github.com/brave/brave-browser/issues/42946
---
 browser/ui/views/tabs/brave_tab_container.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/browser/ui/views/tabs/brave_tab_container.cc b/browser/ui/views/tabs/brave_tab_container.cc
index 7f3b57550c11..b2667015ba1c 100644
--- a/browser/ui/views/tabs/brave_tab_container.cc
+++ b/browser/ui/views/tabs/brave_tab_container.cc
@@ -350,7 +350,9 @@ void BraveTabContainer::PaintBoundingBoxForTile(gfx::Canvas& canvas,
   auto active_tab_handle =
       tab_strip_model->GetTabHandleAt(tab_strip_model->active_index());
   if (!is_vertical_tab && active_tab_handle != tile.first &&
-      active_tab_handle != tile.second) {
+      active_tab_handle != tile.second &&
+      !GetTabAtModelIndex(tab1_index)->IsMouseHovered() &&
+      !GetTabAtModelIndex(tab2_index)->IsMouseHovered()) {
     constexpr int kSplitViewSeparatorHeight = 24;
     auto separator_top = bounding_rects.top_center();
     CHECK_GT(bounding_rects.height(), kSplitViewSeparatorHeight);