feature(Submodule): add button to do submodule update

SourceGit/UI/Waiting.xaml.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Threading.Tasks;
+using System.Windows.Controls;
+
+namespace SourceGit.UI {
+
+    /// <summary>
+    ///     General waiting dialog.
+    /// </summary>
+    public partial class Waiting : UserControl {
+
+        /// <summary>
+        ///     Constructor.
+        /// </summary>
+        public Waiting() {
+            InitializeComponent();
+        }
+
+        /// <summary>
+        ///     Show this dialog.
+        /// </summary>
+        /// <param name="job"></param>
+        public static void Show(Action job) {
+            var dialog = new Waiting();
+            PopupManager.Show(dialog);
+            PopupManager.Lock();
+            Task.Run(() => {
+                job.Invoke();
+                dialog.Dispatcher.Invoke(() => {
+                    PopupManager.Close(true);
+                });
+            });
+        }
+    }
+}