From 0fcef2343a38db4db004fb7cb8c0969de3c45939 Mon Sep 17 00:00:00 2001
From: Gadfly <gadfly@gadfly.vip>
Date: Sat, 11 May 2024 21:59:37 +0800
Subject: [PATCH] fix: add ScrollViewer event handler to disable scroll
 indicators based on scroll position

---
 src/Views/Launcher.axaml    | 3 ++-
 src/Views/Launcher.axaml.cs | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Views/Launcher.axaml b/src/Views/Launcher.axaml
index f5166de2..9166f095 100644
--- a/src/Views/Launcher.axaml
+++ b/src/Views/Launcher.axaml
@@ -96,7 +96,8 @@
                       VerticalScrollBarVisibility="Disabled"
                       DoubleTapped="MaximizeOrRestoreWindow"
                       PointerPressed="BeginMoveWindow"
-                      PointerWheelChanged="ScrollTabs">
+                      PointerWheelChanged="ScrollTabs"
+                      ScrollChanged="OnTabsScrollChanged">
           <StackPanel x:Name="launcherTabsBar" Orientation="Horizontal" SizeChanged="UpdateScrollIndicator">
             <ListBox Classes="launcher_page_tabbar"
                      ItemsSource="{Binding Pages}"
diff --git a/src/Views/Launcher.axaml.cs b/src/Views/Launcher.axaml.cs
index 8d5a38b8..17a5e78a 100644
--- a/src/Views/Launcher.axaml.cs
+++ b/src/Views/Launcher.axaml.cs
@@ -265,6 +265,15 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
+        private void OnTabsScrollChanged(object sender, ScrollChangedEventArgs e)
+        {
+            if (sender is ScrollViewer scrollViewer)
+            {
+                leftScrollIndicator.IsEnabled = scrollViewer.Offset.X > 0;
+                rightScrollIndicator.IsEnabled = scrollViewer.Offset.X < scrollViewer.Extent.Width - scrollViewer.Viewport.Width;
+            }
+        }
+
         private void SetupDragAndDrop(object sender, RoutedEventArgs e)
         {
             if (sender is Border border)