enhance: run checking out automatically when all the local changes are new files

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/ViewModels/Checkout.cs

@@ -22,11 +22,6 @@ public Checkout(Repository repo, Models.Branch branch)
             DiscardLocalChanges = false;
         }
 
-        public override bool CanStartDirectly()
-        {
-            return _repo.LocalChangesCount == 0;
-        }
-
         public override async Task<bool> Sure()
         {
             using var lockWatcher = _repo.LockWatcher();

src/ViewModels/Repository.cs

@@ -1332,12 +1332,23 @@ public void RefreshWorkingCopyChanges()
                 changes.Sort((l, r) => Models.NumericSort.Compare(l.Path, r.Path));
                 _workingCopy.SetData(changes, token);
 
+                var modified = 0;
+                foreach (var c in changes)
+                {
+                    if (c.Index == Models.ChangeState.Added || c.WorkTree == Models.ChangeState.Untracked)
+                        continue;
+
+                    modified++;
+                }
+
                 Dispatcher.UIThread.Invoke(() =>
                 {
                     if (token.IsCancellationRequested)
                         return;
 
                     LocalChangesCount = changes.Count;
+                    _localModifiedCount = modified;
+
                     OnPropertyChanged(nameof(InProgressContext));
                     GetOwnerPage()?.ChangeDirtyState(Models.DirtyState.HasLocalChanges, changes.Count == 0);
                 });
@@ -1411,7 +1422,10 @@ public async Task CheckoutBranchAsync(Models.Branch branch)
 
             if (branch.IsLocal)
             {
-                await ShowAndStartPopupAsync(new Checkout(this, branch));
+                if (_localModifiedCount > 0)
+                    ShowPopup(new Checkout(this, branch));
+                else
+                    await ShowAndStartPopupAsync(new Checkout(this, branch));
             }
             else
             {
@@ -1948,6 +1962,7 @@ private async Task AutoFetchOnUIThread()
 
         private int _localBranchesCount = 0;
         private int _localChangesCount = 0;
+        private int _localModifiedCount = 0;
         private int _stashesCount = 0;
 
         private bool _isSearchingCommits = false;