Replace DelayInvoke with Task + Async

Wox/Helper/DispatcherExtensions.cs

@@ -1,54 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Windows.Threading;
-
-namespace Wox
-{
-    public static class DispatcherExtensions
-    {
-        private static Dictionary<string, DispatcherTimer> timers =
-            new Dictionary<string, DispatcherTimer>();
-        private static readonly object syncRoot = new object();
-
-        public static void DelayInvoke(this Dispatcher dispatcher, string namedInvocation,
-            Action action, TimeSpan delay,
-            DispatcherPriority priority = DispatcherPriority.Normal)
-        {
-            lock (syncRoot)
-            {
-                if (string.IsNullOrEmpty(namedInvocation))
-                {
-                    namedInvocation = Guid.NewGuid().ToString();
-                }
-                else
-                {
-                    RemoveTimer(namedInvocation);
-                }
-                var timer = new DispatcherTimer(delay, priority, (s, e) =>
-                {
-                    RemoveTimer(namedInvocation);
-                    action();
-                }, dispatcher);
-                timer.Start();
-                timers.Add(namedInvocation, timer);
-            }
-        }
-
-
-        public static void CancelNamedInvocation(this Dispatcher dispatcher, string namedInvocation)
-        {
-            lock (syncRoot)
-            {
-                RemoveTimer(namedInvocation);
-            }
-        }
-
-        private static void RemoveTimer(string namedInvocation)
-        {
-            if (!timers.ContainsKey(namedInvocation)) return;
-            timers[namedInvocation].Stop();
-            timers.Remove(namedInvocation);
-        }
-
-    }
-}