enhance: prevent requesting revision files more than once time

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

Author: love-linger

src/ViewModels/CommitDetail.cs

@@ -149,6 +149,7 @@ public void Cleanup()
             _diffContext = null;
             _viewRevisionFileContent = null;
             _cancellationSource = null;
+            _requestingRevisionFiles = false;
             _revisionFiles = null;
             _revisionFileSearchSuggestion = null;
         }
@@ -546,6 +547,7 @@ public ContextMenu CreateRevisionFileContextMenu(Models.Object file)
         private void Refresh()
         {
             _changes = null;
+            _requestingRevisionFiles = false;
             _revisionFiles = null;
 
             SignInfo = null;
@@ -812,16 +814,22 @@ private void RefreshRevisionSearchSuggestion()
             {
                 if (_revisionFiles == null)
                 {
+                    if (_requestingRevisionFiles)
+                        return;
+
                     var sha = Commit.SHA;
+                    _requestingRevisionFiles = true;
 
                     Task.Run(() =>
                     {
                         var files = new Commands.QueryRevisionFileNames(_repo.FullPath, sha).Result();
                         Dispatcher.UIThread.Invoke(() =>
                         {
-                            if (sha == Commit.SHA)
+                            if (sha == Commit.SHA && _requestingRevisionFiles)
                             {
                                 _revisionFiles = files;
+                                _requestingRevisionFiles = false;
+
                                 if (!string.IsNullOrEmpty(_revisionFileSearchFilter))
                                     CalcRevisionFileSearchSuggestion();
                             }
@@ -907,6 +915,7 @@ private Task ResetToParentRevision(Models.Change change)
         private DiffContext _diffContext = null;
         private object _viewRevisionFileContent = null;
         private CancellationTokenSource _cancellationSource = null;
+        private bool _requestingRevisionFiles = false;
         private List<string> _revisionFiles = null;
         private string _revisionFileSearchFilter = string.Empty;
         private List<string> _revisionFileSearchSuggestion = null;