feat: WinUI RefreshContainer

Author: MartinZikmund

src/Uno.UI/Microsoft/UI/Xaml/Controls/PullToRefresh/RefreshContainer/IRefreshContainerPrivate.cs

@@ -0,0 +1,7 @@
+namespace Microsoft.UI.Private.Controls
+{
+    internal interface IRefreshContainerPrivate
+    {
+		IRefreshInfoProviderAdapter RefreshInfoProviderAdapter { get; set; }
+	}
+}

src/Uno.UI/Microsoft/UI/Xaml/Controls/PullToRefresh/RefreshContainer/RefreshContainer.Header.cs

@@ -0,0 +1,23 @@
+#nullable enable
+
+using Microsoft.UI.Private.Controls;
+using Uno.Disposables;
+using Windows.Foundation;
+using Windows.UI.Xaml.Controls;
+
+namespace Microsoft.UI.Xaml.Controls
+{
+	public partial class RefreshContainer
+	{
+		private Panel? m_root;
+		private Panel? m_refreshVisualizerPresenter;
+		private RefreshVisualizer? m_refreshVisualizer;
+		private Deferral? m_visualizerRefreshCompletedDeferral;
+		private RefreshPullDirection m_refreshPullDirection = RefreshPullDirection.TopToBottom;
+		private IRefreshInfoProviderAdapter? m_refreshInfoProviderAdapter;
+		private readonly SerialDisposable m_refreshVisualizerSizeChangedToken = new SerialDisposable();
+
+		private bool m_hasDefaultRefreshVisualizer = false;
+		private bool m_hasDefaultRefreshInfoProviderAdapter = false;
+	}
+}

src/Uno.UI/Microsoft/UI/Xaml/Controls/PullToRefresh/RefreshContainer/RefreshContainer.Properties.cs

@@ -0,0 +1,31 @@
+using Windows.UI.Xaml;
+
+namespace Microsoft.UI.Xaml.Controls
+{
+	public partial class RefreshContainer
+	{
+		public RefreshPullDirection PullDirection
+		{
+			get => (RefreshPullDirection)GetValue(PullDirectionProperty);
+			set => SetValue(PullDirectionProperty, value);
+		}
+
+		public static DependencyProperty PullDirectionProperty { get; } =
+			DependencyProperty.Register(nameof(PullDirection), typeof(RefreshPullDirection), typeof(RefreshContainer), new FrameworkPropertyMetadata(RefreshPullDirection.TopToBottom, OnPropertyChanged));
+
+		public RefreshVisualizer Visualizer
+		{
+			get => (RefreshVisualizer)GetValue(VisualizerProperty);
+			set => SetValue(VisualizerProperty, value);
+		}
+
+		public static DependencyProperty VisualizerProperty { get; } =
+			DependencyProperty.Register(nameof(Visualizer), typeof(RefreshVisualizer), typeof(RefreshContainer), new FrameworkPropertyMetadata(null, OnPropertyChanged));
+
+		private static void OnPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
+		{
+			var owner = (RefreshContainer)sender;
+			owner.OnPropertyChanged(args);
+		}
+	}
+}