refactor<*>: rewrite all with AvaloniaUI

src/ViewModels/DeleteSubmodule.cs

@@ -0,0 +1,28 @@
+using System.Threading.Tasks;
+
+namespace SourceGit.ViewModels {
+    public class DeleteSubmodule : Popup {
+
+        public string Submodule {
+            get;
+            private set;
+        }
+
+        public DeleteSubmodule(Repository repo, string submodule) {
+            _repo = repo;
+            Submodule = submodule;
+            View = new Views.DeleteSubmodule() { DataContext = this };
+        }
+
+        public override Task<bool> Sure() {
+            _repo.SetWatcherEnabled(false);
+            return Task.Run(() => {
+                var succ = new Commands.Submodule(_repo.FullPath).Delete(Submodule);
+                CallUIThread(() => _repo.SetWatcherEnabled(true));
+                return succ;
+            });
+        }
+
+        private Repository _repo = null;
+    }
+}