Fixes #409 - Invoke does not cause Wakeup #501.

Terminal.Gui/Drivers/WindowsDriver.cs

@@ -522,9 +522,9 @@ namespace Terminal.Gui {
 		void WindowsInputHandler ()
 		{
 			while (true) {
-				waitForProbe.Wait ();
+				waitForProbe.Wait ();				
 				waitForProbe.Reset ();
-
+				
 				uint numberEventsRead = 0;
 
 				WindowsConsole.ReadConsoleInput (winConsole.InputHandle, records, 1, out numberEventsRead);
@@ -568,8 +568,19 @@ namespace Terminal.Gui {
 			waitForProbe.Set ();
 
 			try {
-				if (!tokenSource.IsCancellationRequested)
-					eventReady.Wait (waitTimeout, tokenSource.Token);
+				while (result == null) {
+					if (wait && waitTimeout == -1) {
+						waitTimeout = 0;
+					}
+					if (!tokenSource.IsCancellationRequested)
+						eventReady.Wait (waitTimeout, tokenSource.Token);
+					if (result != null) {
+						break;
+					}
+					if (mainLoop.timeouts.Count > 0 || mainLoop.idleHandlers.Count > 0) {
+						return true;
+					}
+				}
 			} catch (OperationCanceledException) {
 				return true;
 			} finally {

Terminal.Gui/MonoCurses/mainloop.cs

@@ -214,7 +214,18 @@ namespace Mono.Terminal {
 
 			UpdatePollMap ();
 
-			n = poll (pollmap, (uint)pollmap.Length, pollTimeout);
+			while (true) {
+				if (wait && pollTimeout == -1) {
+					pollTimeout = 0;
+				}
+				n = poll (pollmap, (uint)pollmap.Length, pollTimeout);
+				if (pollmap != null) {
+					break;
+				}
+				if (mainLoop.timeouts.Count > 0 || mainLoop.idleHandlers.Count > 0) {
+					return true;
+				}
+			}
 			int ic;
 			lock (mainLoop.idleHandlers)
 				ic = mainLoop.idleHandlers.Count;
@@ -454,7 +465,7 @@ namespace Mono.Terminal {
 			running = false;
 			driver.Wakeup ();
 		}
-
+		
 		/// <summary>
 		///   Determines whether there are pending events to be processed.
 		/// </summary>

Terminal.Gui/Views/ScrollView.cs

@@ -521,13 +521,19 @@ namespace Terminal.Gui {
 		///<inheritdoc cref="MouseEvent(Gui.MouseEvent)"/>
 		public override bool MouseEvent (MouseEvent me)
 		{
-			if (me.Flags != MouseFlags.WheeledDown && me.Flags != MouseFlags.WheeledUp)
+			if (me.Flags != MouseFlags.WheeledDown && me.Flags != MouseFlags.WheeledUp &&
+				me.Flags != MouseFlags.Button1Pressed && me.Flags != MouseFlags.Button1Clicked &&
+				!me.Flags.HasFlag (MouseFlags.Button1Pressed | MouseFlags.ReportMousePosition))
 				return false;
 
 			if (me.Flags == MouseFlags.WheeledDown)
 				ScrollDown (1);
 			else if (me.Flags == MouseFlags.WheeledUp)
 				ScrollUp (1);
+			else if (me.X == vertical.Frame.X)
+				vertical.MouseEvent (me);
+			else if (me.Y == horizontal.Frame.Y)
+				horizontal.MouseEvent (me);
 
 			return true;
 		}

UICatalog/Scenario.cs

@@ -6,7 +6,7 @@ using Terminal.Gui;
 
 namespace UICatalog {
 	/// <summary>
-	/// Base class for each demo/scenario. To define a new sceanrio simply
+	/// Base class for each demo/scenario. To define a new scenario simply
 	/// 
 	/// 1) declare a class derived from Scenario,
 	/// 2) Set Name and Description as appropriate using [ScenarioMetadata] attribute
@@ -14,8 +14,8 @@ namespace UICatalog {
 	/// 4) Implement Setup.
 	/// 5) Optionally, implement Run.
 	/// 
-	/// The Main program uses reflection to find all sceanarios and adds them to the
-	/// ListViews. Press ENTER to run the selected sceanrio. Press CTRL-Q to exit it.
+	/// The Main program uses reflection to find all scenarios and adds them to the
+	/// ListViews. Press ENTER to run the selected scenario. Press CTRL-Q to exit it.
 	/// </summary>
 	public class Scenario : IDisposable {
 		private bool _disposedValue;
@@ -26,6 +26,7 @@ namespace UICatalog {
 		public Toplevel Top { get; set; }
 
 		/// <summary>
+		/// The Window for the Scenario. This should be set within the `Application.Top` in most cases.
 		/// </summary>
 		public Window Win { get; set; }
 
@@ -88,7 +89,7 @@ namespace UICatalog {
 		public string GetName () => ScenarioMetadata.GetName (this.GetType ());
 
 		/// <summary>
-		/// Helper to get the Scenario Descripiton
+		/// Helper to get the Scenario Description
 		/// </summary>
 		/// <returns></returns>
 		public string GetDescription () => ScenarioMetadata.GetDescription (this.GetType ());
@@ -137,7 +138,7 @@ namespace UICatalog {
 		}
 
 		/// <summary>
-		/// Runs the scenario. Override to start the scearnio using a Top level different than `Top`.
+		/// Runs the scenario. Override to start the scenario using a Top level different than `Top`.
 		/// </summary>
 		public virtual void Run ()
 		{