From 183047bee19b2ddc8c7dc7bda9dc5b085bd38e6c Mon Sep 17 00:00:00 2001
From: jmm <j0064423.lee@samsung.com>
Date: Wed, 11 Dec 2024 14:45:40 +0900
Subject: [PATCH] [NUI] Add View.OffScreenRendering property

Signed-off-by: jmm <j0064423.lee@samsung.com>
---
 .../internal/Interop/Interop.ViewProperty.cs  |  3 ++
 .../src/public/BaseComponents/View.cs         | 33 ++++++++++++++++++-
 .../src/public/BaseComponents/ViewEnum.cs     | 27 +++++++++++++++
 3 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/src/Tizen.NUI/src/internal/Interop/Interop.ViewProperty.cs b/src/Tizen.NUI/src/internal/Interop/Interop.ViewProperty.cs
index 879dfea3c2c..4be6ff4dbf2 100755
--- a/src/Tizen.NUI/src/internal/Interop/Interop.ViewProperty.cs
+++ b/src/Tizen.NUI/src/internal/Interop/Interop.ViewProperty.cs
@@ -92,6 +92,9 @@ internal static partial class ViewProperty
 
             [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_View_Property_AUTOMATION_ID_get")]
             public static extern int AutomationIdGet();
+
+            [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_View_Property_OFFSCREEN_RENDERING_get")]
+            public static extern int OffScreenRenderingGet();
         }
     }
 }
diff --git a/src/Tizen.NUI/src/public/BaseComponents/View.cs b/src/Tizen.NUI/src/public/BaseComponents/View.cs
index cceabf2b545..5afa20ab158 100755
--- a/src/Tizen.NUI/src/public/BaseComponents/View.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/View.cs
@@ -429,7 +429,6 @@ static View()
                 DispatchHoverMotionProperty = BindableProperty.Create(nameof(DispatchHoverMotion), typeof(bool), typeof(View), false,
                     propertyChanged: SetInternalDispatchHoverMotionProperty, defaultValueCreator: GetInternalDispatchHoverMotionProperty);
 
-
                 RegisterPropertyGroup(PositionProperty, positionPropertyGroup);
                 RegisterPropertyGroup(Position2DProperty, positionPropertyGroup);
                 RegisterPropertyGroup(PositionXProperty, positionPropertyGroup);
@@ -5990,5 +5989,37 @@ public string VoiceInteractionName
                 return AutomationId;
             }
         }
+
+        /// <summary>
+        /// Gets of sets the current offscreen rendering type of the view.
+        /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public OffScreenRenderingType OffScreenRendering
+        {
+            get
+            {
+                return GetInternalOffScreenRendering();
+            }
+            set
+            {
+                SetInternalOffScreenRendering(value);
+                NotifyPropertyChanged();
+            }
+        }
+        private void SetInternalOffScreenRendering(OffScreenRenderingType value)
+        {
+            Object.InternalSetPropertyInt(SwigCPtr, Property.OffScreenRendering, (int)value);
+        }
+        private OffScreenRenderingType GetInternalOffScreenRendering()
+        {
+            int temp = Object.InternalGetPropertyInt(SwigCPtr, Property.OffScreenRendering);
+            switch (temp)
+            {
+                case 0: return OffScreenRenderingType.None;
+                case 1: return OffScreenRenderingType.RefreshOnce;
+                case 2: return OffScreenRenderingType.RefreshAlways;
+                default: return OffScreenRenderingType.None;
+            }
+        }
     }
 }
diff --git a/src/Tizen.NUI/src/public/BaseComponents/ViewEnum.cs b/src/Tizen.NUI/src/public/BaseComponents/ViewEnum.cs
index c7bc20d6663..35792fd1ad6 100755
--- a/src/Tizen.NUI/src/public/BaseComponents/ViewEnum.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/ViewEnum.cs
@@ -163,6 +163,32 @@ public enum FocusDirection
             CounterClockwise,
         }
 
+        /// <summary>
+        /// Describes offscreen rendering types.
+        /// View with this property enabled renders at offscreen buffer, with all its children.
+        /// The property expects to reduce many repetitive render calls.
+        /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public enum OffScreenRenderingType
+        {
+          /// <summary>
+          /// No offscreen rendering.
+          /// </summary>
+          [EditorBrowsable(EditorBrowsableState.Never)]
+          None,
+          /// <summary>
+          /// Draw offscreen only once.
+          /// </summary>
+          [EditorBrowsable(EditorBrowsableState.Never)]
+          RefreshOnce,
+          /// <summary>
+          /// Draw offscreen every frame.
+          /// </summary>
+          [EditorBrowsable(EditorBrowsableState.Never)]
+          RefreshAlways,
+        };
+
+
         /// <summary>
         /// Actions property value to update visual property.
         /// Note : Only few kind of properies can be update. Update with invalid property action is undefined.
@@ -266,6 +292,7 @@ internal class Property
             internal static readonly int UpdateAreaHint = Interop.ActorProperty.UpdateAreaHintGet();
             internal static readonly int DispatchTouchMotion = Interop.ActorProperty.DispatchTouchMotionGet();
             internal static readonly int DispatchHoverMotion = Interop.ActorProperty.DispatchHoverMotionGet();
+            internal static readonly int OffScreenRendering = Interop.ViewProperty.OffScreenRenderingGet();
         }
     }
 }