Merge branch 'master' into master

Author: azchohfi

Microsoft.Toolkit.HighPerformance/Helpers/Internals/RuntimeHelpers.cs

@@ -42,7 +42,7 @@ public static unsafe int ConvertLength<TFrom, TTo>(int length)
             }
             else if (sizeof(TFrom) == 1)
             {
-                return length / sizeof(TTo);
+                return (int)((uint)length / (uint)sizeof(TTo));
             }
             else
             {

Microsoft.Toolkit.Uwp.SampleApp/Controls/XamlCodeEditor.xaml.cs

@@ -21,6 +21,8 @@ public sealed partial class XamlCodeEditor : UserControl
         public static readonly DependencyProperty TextProperty =
             DependencyProperty.Register(nameof(Text), typeof(string), typeof(XamlCodeEditor), new PropertyMetadata(string.Empty));
 
+        private ThemeListener _themeListener = new ThemeListener();
+
         public XamlCodeEditor()
         {
             this.InitializeComponent();
@@ -40,7 +42,7 @@ public async void ReportError(XamlExceptionRange error)
             // Highlight Error Line
             XamlCodeRenderer.Decorations.Add(new IModelDeltaDecoration(
                 range,
-                new IModelDecorationOptions() { IsWholeLine = true, ClassName = _errorStyle, HoverMessage = new string[] { error.Message }.ToMarkdownString() }));
+                new IModelDecorationOptions() { IsWholeLine = true, ClassName = ErrorStyle, HoverMessage = new string[] { error.Message }.ToMarkdownString() }));
 
             // Show Glyph Icon
             XamlCodeRenderer.Decorations.Add(new IModelDeltaDecoration(
@@ -121,10 +123,12 @@ public string Text
 
         public DateTime TimeSampleEditedLast { get; private set; } = DateTime.MinValue;
 
-        private CssLineStyle _errorStyle = new CssLineStyle()
+        private CssLineStyle ErrorStyle
         {
-            BackgroundColor = new SolidColorBrush(Color.FromArgb(0x00, 0xFF, 0xD6, 0xD6))
-        };
+            get => _themeListener.CurrentTheme.Equals(ApplicationTheme.Light) ?
+                new CssLineStyle() { BackgroundColor = new SolidColorBrush(Color.FromArgb(0x00, 0xFF, 0xD6, 0xD6)) } :
+                new CssLineStyle() { BackgroundColor = new SolidColorBrush(Color.FromArgb(0x00, 0x66, 0x00, 0x00)) };
+        }
 
         private CssGlyphStyle _errorIconStyle = new CssGlyphStyle()
         {

Microsoft.Toolkit.Uwp.UI.Animations/Expressions/CompositionExtensions.cs

@@ -221,6 +221,26 @@ public static void SetMotion(this InteractionTrackerInertiaMotion modifier, Expr
             modifier.Motion = CreateExpressionAnimationFromNode(modifier.Compositor, expressionNode);
         }
 
+        /// <summary>
+        /// Use the value of specified ExpressionNode to determine if this composition conditional value modifier should be chosen.
+        /// </summary>
+        /// <param name="modifier">The modifier.</param>
+        /// <param name="expressionNode">The root ExpressionNode that represents the ExpressionAnimation.</param>
+        public static void SetCondition(this CompositionConditionalValue modifier, ExpressionNode expressionNode)
+        {
+            modifier.Condition = CreateExpressionAnimationFromNode(modifier.Compositor, expressionNode);
+        }
+
+        /// <summary>
+        /// Use the value of specified ExpressionNode as the value for this composition conditional value
+        /// </summary>
+        /// <param name="modifier">The modifier.</param>
+        /// <param name="expressionNode">The root ExpressionNode that represents the ExpressionAnimation.</param>
+        public static void SetValue(this CompositionConditionalValue modifier, ExpressionNode expressionNode)
+        {
+            modifier.Value = CreateExpressionAnimationFromNode(modifier.Compositor, expressionNode);
+        }
+
         /// <summary>
         /// Creates the expression animation from node.
         /// </summary>