Fixes #2558. MenuBar positions wrong in some situations. (#2567)

* Fixes #2558. MenuBar positions wrong in some situations.

* Replacing Application.Top with Application.Current.

* Fix typo.

* Fix shortcut tag overlapping help on smaller width and add more unit test.

* Resizing the console will close all opened menus.

* Resize first the console before show ContextMenu.

* Remove DriverFrame and DriverFrameOffset as not relevant.

* Replace _frame with Frame as requested.

* Fix xml document comment.

* Compare equality between Dialog and Application.Top.

* Move GetDriverLocationOffset and GetDriverLocationOffsetFromCurrent to the Menu.cs.

* Fix merge errors.

* Ensure menu is closed on click.

* Force Height always be 1 to avoid mouse events respond even outside bounds.

* Recovering UseSubMenusSingleFrame hope doesn't break again.

* Fix bugs and made requested changes.

---------

Co-authored-by: Tig <tig@users.noreply.github.com>

Terminal.Gui/Application.cs

@@ -1208,9 +1208,9 @@ static void OnUnGrabbedMouse (View view)
 
 		static void ProcessMouseEvent (MouseEvent me)
 		{
-			bool OutsideFrame (Point p, Rect r)
+			bool OutsideBounds (Point p, Rect r)
 			{
-				return p.X < 0 || p.X > r.Width - 1 || p.Y < 0 || p.Y > r.Height - 1;
+				return p.X < 0 || p.X > r.Right || p.Y < 0 || p.Y > r.Bottom;
 			}
 
 			if (IsMouseDisabled) {
@@ -1243,7 +1243,7 @@ bool OutsideFrame (Point p, Rect r)
 					OfY = me.Y - newxy.Y,
 					View = view
 				};
-				if (OutsideFrame (new Point (nme.X, nme.Y), _mouseGrabView.Frame)) {
+				if (OutsideBounds (new Point (nme.X, nme.Y), _mouseGrabView.Bounds)) {
 					_lastMouseOwnerView?.OnMouseLeave (me);
 				}
 				//System.Diagnostics.Debug.WriteLine ($"{nme.Flags};{nme.X};{nme.Y};{mouseGrabView}");

Terminal.Gui/View/View.cs

@@ -434,7 +434,7 @@ public override bool Enabled {
 				}
 			}
 		}
-		
+
 		/// <summary>
 		/// Event fired when the <see cref="Visible"/> value is being changed.
 		/// </summary>
@@ -481,7 +481,7 @@ bool CanBeVisible (View view)
 
 			return true;
 		}
-		
+
 		/// <summary>
 		/// Pretty prints the View
 		/// </summary>

Terminal.Gui/Views/ContextMenu.cs

@@ -33,7 +33,7 @@ public sealed class ContextMenu : IDisposable {
 		public ContextMenu () : this (0, 0, new MenuBarItem ()) { }
 
 		/// <summary>
-		/// Initializes a context menu, with a <see cref="View"/> specifiying the parent/hose of the menu.
+		/// Initializes a context menu, with a <see cref="View"/> specifying the parent/host of the menu.
 		/// </summary>
 		/// <param name="host">The host view.</param>
 		/// <param name="menuItems">The menu items for the context menu.</param>
@@ -79,7 +79,6 @@ public void Dispose ()
 			}
 			if (container != null) {
 				container.Closing -= Container_Closing;
-				container.TerminalResized -= Container_Resized;
 			}
 		}
 
@@ -91,13 +90,12 @@ public void Show ()
 			if (menuBar != null) {
 				Hide ();
 			}
-			container = Application.Top;
+			container = Application.Current;
 			container.Closing += Container_Closing;
-			container.TerminalResized += Container_Resized;
-			var frame = container.Frame;
+			var frame = new Rect (0, 0, View.Driver.Cols, View.Driver.Rows);
 			var position = Position;
 			if (Host != null) {
-				Host.ViewToScreen (container.Frame.X, container.Frame.Y, out int x, out int y);
+				Host.ViewToScreen (frame.X, frame.Y, out int x, out int y);
 				var pos = new Point (x, y);
 				pos.Y += Host.Frame.Height - 1;
 				if (position != pos) {
@@ -119,7 +117,7 @@ public void Show ()
 					if (Host == null) {
 						position.Y = frame.Bottom - rect.Height - 1;
 					} else {
-						Host.ViewToScreen (container.Frame.X, container.Frame.Y, out int x, out int y);
+						Host.ViewToScreen (frame.X, frame.Y, out int x, out int y);
 						var pos = new Point (x, y);
 						position.Y = pos.Y - rect.Height - 1;
 					}
@@ -145,13 +143,6 @@ public void Show ()
 			menuBar.OpenMenu ();
 		}
 
-		private void Container_Resized (object sender, SizeChangedEventArgs e)
-		{
-			if (IsShow) {
-				Show ();
-			}
-		}
-
 		private void Container_Closing (object sender, ToplevelClosingEventArgs obj)
 		{
 			Hide ();