Merge pull request #1624 from Microsoft/nmetulev/sampleapp

SampleApp updates and more

Microsoft.Toolkit.Uwp.SampleApp/Common/XAMLHelper.cs

@@ -0,0 +1,70 @@
+// ******************************************************************
+// Copyright (c) Microsoft. All rights reserved.
+// This code is licensed under the MIT License (MIT).
+// THE CODE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
+// THE CODE OR THE USE OR OTHER DEALINGS IN THE CODE.
+// ******************************************************************
+
+using System.Reflection;
+using Microsoft.Toolkit.Uwp.UI.Animations;
+using Windows.UI;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Media;
+
+namespace Microsoft.Toolkit.Uwp.SampleApp
+{
+    public static class XAMLHelper
+    {
+        public static Color GetBackground(FrameworkElement obj)
+        {
+            return (Color)obj.GetValue(BackgroundProperty);
+        }
+
+        public static void SetBackground(FrameworkElement obj, Color value)
+        {
+            obj.SetValue(BackgroundProperty, value);
+        }
+
+        // Using a DependencyProperty as the backing store for Background.  This enables animation, styling, binding, etc...
+        public static readonly DependencyProperty BackgroundProperty =
+            DependencyProperty.RegisterAttached("Background", typeof(Color), typeof(XAMLHelper), new PropertyMetadata(Colors.White, OnBackgroundChanged));
+
+        private static void OnBackgroundChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            if (e.NewValue is Color color)
+            {
+                var type = d.GetType();
+                var backgroundProperty = type.GetProperty("Background");
+                if (backgroundProperty == null)
+                {
+                    return;
+                }
+
+                var fullColor = Color.FromArgb(0xff, color.R, color.G, color.B);
+
+                if (Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.UI.Xaml.Media.AcrylicBrush"))
+                {
+                    AcrylicBrush myBrush = new AcrylicBrush
+                    {
+                        BackgroundSource = AcrylicBackgroundSource.Backdrop,
+                        TintColor = fullColor,
+                        FallbackColor = color,
+                        TintOpacity = (double)color.A / 255d
+                    };
+
+                    backgroundProperty.SetValue(d, myBrush);
+                }
+                else
+                {
+                    backgroundProperty.SetValue(d, new SolidColorBrush(color));
+                    ((FrameworkElement)d).Blur(3, duration: 0).Start();
+                }
+            }
+        }
+    }
+}