[NUI] Add SetFocusFinderRootView() and ResetFocusFinderRootView() api

If you enable DefaultAlgorithm of FocusManager, you can automatically move the focus to the nearest View.

However, this is always root based on Window.

We want to change this root.

So I add two apis

1. SetFocusFinderRootView(View root)

  - This will only look for focusable Views within that View tree when looking for the next focus.

2. ResetFocusFinderRootView()

  - the root becomes the window again.

Dependency
https://review.tizen.org/gerrit/#/c/platform/core/uifw/dali-csharp-binder/+/274424/
https://review.tizen.org/gerrit/#/c/platform/core/uifw/dali-toolkit/+/274422/

diff --git a/src/Tizen.NUI/src/internal/Interop/Interop.FocusManager.cs b/src/Tizen.NUI/src/internal/Interop/Interop.FocusManager.cs
index 29dfc0b..cda0680 100755 (executable)
--- a/src/Tizen.NUI/src/internal/Interop/Interop.FocusManager.cs
+++ b/src/Tizen.NUI/src/internal/Interop/Interop.FocusManager.cs
@@ -92,6 +92,12 @@ namespace Tizen.NUI
             [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_KeyboardFocusManager_GetNearestFocusableActor")]
             public static extern global::System.IntPtr GetNearestFocusableActor(global::System.Runtime.InteropServices.HandleRef rootView, global::System.Runtime.InteropServices.HandleRef currentView,  int direction);
 
+            [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_KeyboardFocusManager_SetFocusFinderRootActor")]
+            public static extern void SetFocusFinderRootView(global::System.Runtime.InteropServices.HandleRef jarg1, global::System.Runtime.InteropServices.HandleRef jarg2);
+
+            [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_KeyboardFocusManager_ResetFocusFinderRootActor")]
+            public static extern void ResetFocusFinderRootView(global::System.Runtime.InteropServices.HandleRef jarg1);
+
             [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_KeyboardFocusManager_SWIGUpcast")]
             public static extern global::System.IntPtr Upcast(global::System.IntPtr jarg1);
         }

diff --git a/src/Tizen.NUI/src/public/Input/FocusManager.cs b/src/Tizen.NUI/src/public/Input/FocusManager.cs
index 7706b56..bcd6624 100755 (executable)
--- a/src/Tizen.NUI/src/public/Input/FocusManager.cs
+++ b/src/Tizen.NUI/src/public/Input/FocusManager.cs
@@ -453,6 +453,29 @@ namespace Tizen.NUI
             return ret;
         }
 
+        /// <summary>
+        /// Sets the root view to start moving focus when DefaultAlgorithm is enabled.
+        /// This will only look for focusable Views within that View tree when looking for the next focus.
+        /// </summary>
+        /// <param name="rootView">The root view in which to find the next focusable view.</param>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public void SetFocusFinderRootView(View rootView)
+        {
+            Interop.FocusManager.SetFocusFinderRootView(SwigCPtr, View.getCPtr(rootView));
+            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
+        }
+
+        /// <summary>
+        /// Reset the root view that starts moving focus when DefaultAlgorithm is enabled.
+        /// When reset, the window becomes root.
+        /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public void ResetFocusFinderRootView()
+        {
+            Interop.FocusManager.ResetFocusFinderRootView(SwigCPtr);
+            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
+        }
+
         internal static FocusManager Get()
         {
             FocusManager ret = new FocusManager(Interop.FocusManager.Get(), true);