ux: reset scroll offset after viewing commit changed

Signed-off-by: leo <[email protected]>

Author: love-linger

src/ViewModels/CommitDetail.cs

@@ -5,7 +5,9 @@
 using System.Threading;
 using System.Threading.Tasks;
 
+using Avalonia;
 using Avalonia.Threading;
+
 using CommunityToolkit.Mvvm.ComponentModel;
 
 namespace SourceGit.ViewModels
@@ -157,6 +159,12 @@ public bool CanOpenRevisionFileWithDefaultEditor
             private set => SetProperty(ref _canOpenRevisionFileWithDefaultEditor, value);
         }
 
+        public Vector ScrollOffset
+        {
+            get => _scrollOffset;
+            set => SetProperty(ref _scrollOffset, value);
+        }
+
         public CommitDetail(Repository repo, CommitDetailSharedData sharedData)
         {
             _repo = repo;
@@ -355,6 +363,7 @@ private void Refresh()
             Children = null;
             RevisionFileSearchFilter = string.Empty;
             RevisionFileSearchSuggestion = null;
+            ScrollOffset = Vector.Zero;
 
             if (_commit == null)
                 return;
@@ -640,5 +649,6 @@ private async Task SetViewingCommitAsync(Models.Object file)
         private string _revisionFileSearchFilter = string.Empty;
         private List<string> _revisionFileSearchSuggestion = null;
         private bool _canOpenRevisionFileWithDefaultEditor = false;
+        private Vector _scrollOffset = Vector.Zero;
     }
 }

src/Views/CommitDetail.axaml

@@ -16,7 +16,7 @@
         <TextBlock Classes="tab_header" Text="{DynamicResource Text.CommitDetail.Info}"/>
       </TabItem.Header>
 
-      <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
+      <ScrollViewer Offset="{Binding ScrollOffset, Mode=TwoWay}" HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
         <StackPanel Orientation="Vertical">
           <!-- Base Information -->
           <v:CommitBaseInfo Content="{Binding Commit}"