refactor<*>: rewrite all codes...

src/Views/Popups/AddSubmodule.xaml.cs

@@ -0,0 +1,40 @@
+using System.Threading.Tasks;
+using System.Windows.Controls;
+
+namespace SourceGit.Views.Popups {
+    /// <summary>
+    ///     新增子模块面板
+    /// </summary>
+    public partial class AddSubmodule : Controls.PopupWidget {
+        private string repo = null;
+
+        public string URL { get; set; }
+        public string Path { get; set; }
+
+        public AddSubmodule(string repo) {
+            this.repo = repo;
+            InitializeComponent();
+        }
+
+        public override string GetTitle() {
+            return App.Text("Submodule.Add");
+        }
+
+        public override Task<bool> Start() {
+            txtURL.GetBindingExpression(TextBox.TextProperty).UpdateSource();
+            if (Validation.GetHasError(txtURL)) return null;
+
+            txtPath.GetBindingExpression(TextBox.TextProperty).UpdateSource();
+            if (Validation.GetHasError(txtPath)) return null;
+
+            var recursive = chkNested.IsChecked == true;
+
+            return Task.Run(() => {
+                Models.Watcher.SetEnabled(repo, false);
+                var succ = new Commands.Submodule(repo).Add(URL, Path, recursive, UpdateProgress);
+                Models.Watcher.SetEnabled(repo, true);
+                return succ;
+            });
+        }
+    }
+}