better way to handle on hovered position

Microsoft.Toolkit.Uwp.SampleApp/SamplePages/RichSuggestBox/RichSuggestBoxCode.bind

@@ -1,6 +1,11 @@
-private async void SuggestingBox_OnTokenHovered(RichSuggestBox sender, RichSuggestTokenHoveredEventArgs args)
+private void SuggestingBox_OnPointerMoved(object sender, PointerRoutedEventArgs e)
 {
-  await Task.Delay(1);
+  this._pointerPoint = e.GetCurrentPoint((UIElement)sender);
+}
+
+private async void SuggestingBox_OnTokenHovered(RichSuggestBox sender, RichSuggestTokenEventArgs args)
+{
+  await Task.Delay(200);
   var flyout = (Flyout)FlyoutBase.GetAttachedFlyout(sender);
   if (flyout?.Content is ContentPresenter cp && sender.TextDocument.Selection.Type != SelectionType.Normal &&
     (!flyout.IsOpen || cp.Content != args.Token.Item))
@@ -8,7 +13,7 @@
     cp.Content = args.Token.Item;
     flyout.ShowAt(sender, new FlyoutShowOptions
     {
-      Position = args.CurrentPoint.Position,
+      Position = this._pointerPoint.Position,
       ExclusionRect = args.Rect,
       ShowMode = FlyoutShowMode.TransientWithDismissOnPointerMoveAway
     });

Microsoft.Toolkit.Uwp.SampleApp/SamplePages/RichSuggestBox/RichSuggestBoxPage.xaml.cs

@@ -8,12 +8,13 @@ using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.Toolkit.Uwp.UI;
 using Microsoft.Toolkit.Uwp.UI.Controls;
-using Windows.System;
 using Windows.UI;
+using Windows.UI.Input;
 using Windows.UI.Text;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Input;
 
 // The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=234238
 
@@ -90,17 +91,18 @@ namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages
 
         private RichSuggestBox _rsb;
         private RichSuggestBox _tsb;
-        private DispatcherQueueTimer _hoveringTimer;
+        private PointerPoint _pointerPoint;
 
         public RichSuggestBoxPage()
         {
             this.InitializeComponent();
-            this._hoveringTimer = DispatcherQueue.GetForCurrentThread().CreateTimer();
             Loaded += (sender, e) => { this.OnXamlRendered(this); };
         }
 
         public void OnXamlRendered(FrameworkElement control)
         {
+            PointerEventHandler pointerMovedHandler = SuggestingBox_OnPointerMoved;
+
             if (this._rsb != null)
             {
                 this._rsb.SuggestionChosen -= this.SuggestingBox_OnSuggestionChosen;
@@ -112,6 +114,7 @@ namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages
                 this._tsb.SuggestionChosen -= this.SuggestingBox_OnSuggestionChosen;
                 this._tsb.SuggestionsRequested -= this.SuggestingBox_OnSuggestionsRequested;
                 this._tsb.TokenHovered -= SuggestingBox_OnTokenHovered;
+                this._tsb.RemoveHandler(PointerMovedEvent, pointerMovedHandler);
             }
 
             if (control.FindChild("SuggestingBox") is RichSuggestBox rsb)
@@ -127,6 +130,7 @@ namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages
                 this._tsb.SuggestionChosen += this.SuggestingBox_OnSuggestionChosen;
                 this._tsb.SuggestionsRequested += this.SuggestingBox_OnSuggestionsRequested;
                 this._tsb.TokenHovered += this.SuggestingBox_OnTokenHovered;
+                this._tsb.AddHandler(PointerMovedEvent, pointerMovedHandler, true);
             }
 
             if (control.FindChild("TokenListView1") is ListView tls1)
@@ -140,9 +144,14 @@ namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages
             }
         }
 
-        private async void SuggestingBox_OnTokenHovered(RichSuggestBox sender, RichSuggestTokenHoveredEventArgs args)
+        private void SuggestingBox_OnPointerMoved(object sender, PointerRoutedEventArgs e)
         {
-            await Task.Delay(1);
+            this._pointerPoint = e.GetCurrentPoint((UIElement)sender);
+        }
+
+        private async void SuggestingBox_OnTokenHovered(RichSuggestBox sender, RichSuggestTokenEventArgs args)
+        {
+            await Task.Delay(200);
             var flyout = (Flyout)FlyoutBase.GetAttachedFlyout(sender);
             if (flyout?.Content is ContentPresenter cp && sender.TextDocument.Selection.Type != SelectionType.Normal &&
                 (!flyout.IsOpen || cp.Content != args.Token.Item))
@@ -150,7 +159,7 @@ namespace Microsoft.Toolkit.Uwp.SampleApp.SamplePages
                 cp.Content = args.Token.Item;
                 flyout.ShowAt(sender, new FlyoutShowOptions
                 {
-                    Position = args.CurrentPoint.Position,
+                    Position = this._pointerPoint.Position,
                     ExclusionRect = args.Rect,
                     ShowMode = FlyoutShowMode.TransientWithDismissOnPointerMoveAway
                 });

Microsoft.Toolkit.Uwp.UI.Controls.Input/RichSuggestBox/RichSuggestBox.Events.cs

@@ -27,12 +27,12 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
         /// <summary>
         /// Event raised when a token is fully highlighted.
         /// </summary>
-        public event TypedEventHandler<RichSuggestBox, RichSuggestTokenSelectedEventArgs> TokenSelected;
+        public event TypedEventHandler<RichSuggestBox, RichSuggestTokenEventArgs> TokenSelected;
 
         /// <summary>
         /// Event raised when a pointer is hovering over a token.
         /// </summary>
-        public event TypedEventHandler<RichSuggestBox, RichSuggestTokenHoveredEventArgs> TokenHovered;
+        public event TypedEventHandler<RichSuggestBox, RichSuggestTokenEventArgs> TokenHovered;
 
         /// <summary>
         /// Event raised when text is changed, either by user or by internal formatting.

Microsoft.Toolkit.Uwp.UI.Controls.Input/RichSuggestBox/RichSuggestBox.cs

@@ -13,7 +13,6 @@ using Windows.ApplicationModel.DataTransfer;
 using Windows.Foundation;
 using Windows.Foundation.Metadata;
 using Windows.System;
-using Windows.UI.Input;
 using Windows.UI.Text;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
@@ -240,7 +239,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
         private void RichEditBox_OnPointerMoved(object sender, PointerRoutedEventArgs e)
         {
             var pointer = e.GetCurrentPoint((UIElement)sender);
-            InvokeTokenHovered(pointer.Position, e.GetCurrentPoint(this));
+            InvokeTokenHovered(pointer.Position);
         }
 
         private void RichEditBox_SelectionChanging(RichEditBox sender, RichEditBoxSelectionChangingEventArgs args)
@@ -440,7 +439,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
             }
 
             var tokenRect = GetTokenRect(selection);
-            TokenSelected?.Invoke(this, new RichSuggestTokenSelectedEventArgs
+            TokenSelected?.Invoke(this, new RichSuggestTokenEventArgs
             {
                 Token = token,
                 Rect = tokenRect,
@@ -448,7 +447,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
             });
         }
 
-        private void InvokeTokenHovered(Point pointerPosition, PointerPoint passingPointerPoint)
+        private void InvokeTokenHovered(Point pointerPosition)
         {
             var padding = _richEditBox.Padding;
             pointerPosition.X -= padding.Left;
@@ -458,12 +457,11 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
             if (range.Expand(TextRangeUnit.Link) > 0 && TryGetTokenFromRange(range, out token) &&
                 token != _hoveringToken)
             {
-                TokenHovered?.Invoke(this, new RichSuggestTokenHoveredEventArgs
+                TokenHovered?.Invoke(this, new RichSuggestTokenEventArgs
                 {
                     Token = token,
                     Rect = GetTokenRect(range),
                     Range = range,
-                    CurrentPoint = passingPointerPoint
                 });
             }
 

Microsoft.Toolkit.Uwp.UI.Controls.Input/RichSuggestBox/RichSuggestBox.xaml

@@ -4,6 +4,11 @@
                     xmlns:contract7Present="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractPresent(Windows.Foundation.UniversalApiContract,7)"
                     xmlns:contract8Present="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractPresent(Windows.Foundation.UniversalApiContract,8)"
                     xmlns:controls="using:Microsoft.Toolkit.Uwp.UI.Controls">
+    <ResourceDictionary.MergedDictionaries>
+        <!--  WinUI dependency for testing  -->
+        <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
+    </ResourceDictionary.MergedDictionaries>
+
     <!--  Default style for RichSuggestBox  -->
     <Style BasedOn="{StaticResource DefaultRichSuggestBoxStyle}"
            TargetType="controls:RichSuggestBox" />

Microsoft.Toolkit.Uwp.UI.Controls.Input/RichSuggestBox/RichSuggestTokenEventArgs.cs

@@ -11,7 +11,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// Provides data for <see cref="RichSuggestBox.TokenSelected"/> event.
     /// </summary>
-    public class RichSuggestTokenSelectedEventArgs : EventArgs
+    public class RichSuggestTokenEventArgs : EventArgs
     {
         /// <summary>
         /// Gets or sets the selected token.

Microsoft.Toolkit.Uwp.UI.Controls.Input/RichSuggestBox/RichSuggestTokenHoveredEventArgs.cs

@@ -1,19 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using Windows.UI.Input;
-
-namespace Microsoft.Toolkit.Uwp.UI.Controls
-{
-    /// <summary>
-    /// Provides data for <see cref="RichSuggestBox.TokenHovered"/> event.
-    /// </summary>
-    public class RichSuggestTokenHoveredEventArgs : RichSuggestTokenSelectedEventArgs
-    {
-        /// <summary>
-        /// Gets or sets a <see cref="PointerPoint"/> object with position relative to the <see cref="RichSuggestBox"/> instance.
-        /// </summary>
-        public PointerPoint CurrentPoint { get; set; }
-    }
-}