From f3244326cb1f265b9ea6648602ebca2e4c09c47e Mon Sep 17 00:00:00 2001
From: Jay Cho <chojoong@gmail.com>
Date: Tue, 1 Nov 2022 15:14:04 +0900
Subject: [PATCH] [Tizen] Add Shell FlyoutBackDrop

---
 .../Core/Handlers/Shell/Tizen/ShellView.cs    | 22 ++++++++++++++++---
 .../net-tizen/PublicAPI.Unshipped.txt         |  3 ++-
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/src/Controls/src/Core/Handlers/Shell/Tizen/ShellView.cs b/src/Controls/src/Core/Handlers/Shell/Tizen/ShellView.cs
index 5b8092385ab8..de36772d2e04 100644
--- a/src/Controls/src/Core/Handlers/Shell/Tizen/ShellView.cs
+++ b/src/Controls/src/Core/Handlers/Shell/Tizen/ShellView.cs
@@ -1,7 +1,6 @@
 #nullable enable
 
 using System;
-using System.Collections.Generic;
 using Microsoft.Maui.Controls.Handlers;
 using Microsoft.Maui.Controls.Handlers.Items;
 using Microsoft.Maui.Graphics;
@@ -34,6 +33,8 @@ public class ShellView : ViewGroup, IAppearanceObserver, IFlyoutBehaviorObserver
 
 		ShellItemHandler? _currentItemHandler;
 
+		WrapperView? _backdropView;
+
 		bool _isOpen;
 
 		protected Shell? Element { get; set; }
@@ -44,7 +45,9 @@ public class ShellView : ViewGroup, IAppearanceObserver, IFlyoutBehaviorObserver
 
 		protected bool HeaderOnMenu => _headerBehavior == FlyoutHeaderBehavior.Scroll || _headerBehavior == FlyoutHeaderBehavior.CollapseOnScroll;
 
-		protected NColor DefaultBackgroundCorlor = NColor.White;
+		public readonly NColor DefaultBackgroundColor = NColor.White;
+
+		public readonly NColor DefaultBackdropColor = new NColor(0.1f, 0.1f, 0.1f, 0.5f);
 
 		public event EventHandler? Toggled;
 
@@ -123,7 +126,7 @@ public void UpdateFlyout(IView? flyout)
 
 		public void UpdateBackgroundColor(GColor? color)
 		{
-			_navigationView.BackgroundColor = color?.ToNUIColor() ?? DefaultBackgroundCorlor;
+			_navigationView.BackgroundColor = color?.ToNUIColor() ?? DefaultBackgroundColor;
 		}
 
 		public void UpdateCurrentItem(ShellItem newItem, bool animate = true)
@@ -200,6 +203,19 @@ public void UpdateItems()
 
 		public void UpdateFlyoutBackDrop(Brush backdrop)
 		{
+			if (_backdropView == null)
+			{
+				_backdropView = new WrapperView()
+				{
+					WidthSpecification = LayoutParamPolicies.MatchParent,
+					HeightSpecification = LayoutParamPolicies.MatchParent,
+					BackgroundColor = DefaultBackdropColor
+				};
+				_navigationDrawer.Backdrop = _backdropView;
+			}
+
+			if (!backdrop.IsEmpty)
+				_backdropView.UpdateBackground(backdrop);
 		}
 
 		public void SetToolbar(MauiToolbar toolbar)
diff --git a/src/Controls/src/Core/PublicAPI/net-tizen/PublicAPI.Unshipped.txt b/src/Controls/src/Core/PublicAPI/net-tizen/PublicAPI.Unshipped.txt
index 7d1f9df1f9b6..6af294c9c83c 100644
--- a/src/Controls/src/Core/PublicAPI/net-tizen/PublicAPI.Unshipped.txt
+++ b/src/Controls/src/Core/PublicAPI/net-tizen/PublicAPI.Unshipped.txt
@@ -1718,7 +1718,6 @@ Microsoft.Maui.Controls.Platform.ShellSectionView.MauiContext.set -> void
 Microsoft.Maui.Controls.Platform.ShellSectionView.ShellSection.get -> Microsoft.Maui.Controls.ShellSection!
 Microsoft.Maui.Controls.Platform.ShellSectionView.ShellSectionView(Microsoft.Maui.Controls.ShellSection! section, Microsoft.Maui.IMauiContext! context) -> void
 Microsoft.Maui.Controls.Platform.ShellView
-Microsoft.Maui.Controls.Platform.ShellView.DefaultBackgroundCorlor -> Tizen.NUI.Color!
 Microsoft.Maui.Controls.Platform.ShellView.Element.get -> Microsoft.Maui.Controls.Shell?
 Microsoft.Maui.Controls.Platform.ShellView.Element.set -> void
 Microsoft.Maui.Controls.Platform.ShellView.HeaderOnMenu.get -> bool
@@ -3235,6 +3234,8 @@ override sealed Microsoft.Maui.Controls.PlatformBehavior<TView, TPlatformView>.O
 override sealed Microsoft.Maui.Controls.PlatformBehavior<TView, TPlatformView>.OnAttachedTo(TView! bindable) -> void
 override sealed Microsoft.Maui.Controls.PlatformBehavior<TView, TPlatformView>.OnDetachingFrom(Microsoft.Maui.Controls.BindableObject! bindable) -> void
 override sealed Microsoft.Maui.Controls.PlatformBehavior<TView, TPlatformView>.OnDetachingFrom(TView! bindable) -> void
+readonly Microsoft.Maui.Controls.Platform.ShellView.DefaultBackdropColor -> Tizen.NUI.Color!
+readonly Microsoft.Maui.Controls.Platform.ShellView.DefaultBackgroundColor -> Tizen.NUI.Color!
 static Microsoft.Maui.Controls.AbsoluteLayout.AutoSize -> double
 static Microsoft.Maui.Controls.Application.AccentColor.get -> Microsoft.Maui.Graphics.Color?
 static Microsoft.Maui.Controls.Application.AccentColor.set -> void