Windows: Add MailLogWindow

Elwig/Helpers/ControlUtils.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
+using System.Windows.Threading;
 using Brush = System.Windows.Media.Brush;
 using Brushes = System.Windows.Media.Brushes;
 
@@ -234,5 +235,21 @@ namespace Elwig.Helpers {
                 return null;
             }
         }
+
+        public static void InitializeDelayTimer(TextBox tb, Action<object, TextChangedEventArgs> handler) {
+            var timer = new DispatcherTimer {
+                Interval = TimeSpan.FromMilliseconds(250)
+            };
+            timer.Tick += (object? sender, EventArgs evt) => {
+                timer.Stop();
+                var (oSender, oEvent) = ((object, TextChangedEventArgs))timer.Tag;
+                handler(oSender, oEvent);
+            };
+            tb.TextChanged += (object sender, TextChangedEventArgs evt) => {
+                timer.Stop();
+                timer.Tag = (sender, evt);
+                timer.Start();
+            };
+        }
     }
 }