update

Packages/app.rive.rive-unity/Runtime/DataBinding/Values/ViewModelInstanceArtboardProperty.cs

@@ -0,0 +1,85 @@
+using System;
+using System.Runtime.InteropServices;
+using Rive.Utils;
+
+namespace Rive
+{
+    /// <summary>
+    /// A view model instance property for artboard properties.
+    /// </summary>
+    public sealed class ViewModelInstanceArtboardProperty : ViewModelInstancePrimitiveProperty
+    {
+        public ViewModelInstanceArtboardProperty(IntPtr instanceValuePtr, ViewModelInstance instance) : base(instanceValuePtr, instance)
+        {
+        }
+
+        /// <summary>
+        /// Sets the artboard value for this property.
+        /// </summary>
+        public BindableArtboard Value
+        {
+            set
+            {
+                ThrowIfOwnerDisposed();
+                SetArtboardInternal(value);
+            }
+        }
+
+        /// <summary>
+        /// Raised when the artboard property is changed in the Rive graphic.
+        /// </summary>
+        public event Action OnValueChanged
+        {
+            add => AddPropertyCallback(value, ref m_onValueChanged);
+            remove => RemovePropertyCallback(value, ref m_onValueChanged);
+        }
+        private Action m_onValueChanged;
+
+        /// <summary>
+        /// Sets the artboard for the property.
+        /// </summary>
+        private void SetArtboardInternal(BindableArtboard artboard)
+        {
+            if (artboard != null && artboard.NativeBindableArtboard == IntPtr.Zero)
+            {
+                DebugLogger.Instance.LogError("Trying to assign an invalid artboard.");
+                return;
+            }
+
+
+            bool wasSuccess = setViewModelInstanceArtboardValue(
+                InstancePropertyPtr,
+                artboard?.NativeBindableArtboard ?? IntPtr.Zero,
+                artboard?.ViewModelInstanceHandle ?? ViewModelInstanceSafeHandle.Null);
+
+
+            if (!wasSuccess)
+            {
+                DebugLogger.Instance.LogError("Failed to set artboard.");
+            }
+        }
+
+        internal override void RaiseChangedEvent()
+        {
+            m_onValueChanged?.Invoke();
+        }
+
+        internal override void ClearAllCallbacks()
+        {
+            m_onValueChanged = null;
+            base.ClearAllCallbacks();
+        }
+
+        internal override void ClearDelegatesOnly()
+        {
+            m_onValueChanged = null;
+        }
+
+        [DllImport(NativeLibrary.name)]
+        private static extern bool setViewModelInstanceArtboardValue(
+            IntPtr instanceProperty,
+            IntPtr artboard,
+            ViewModelInstanceSafeHandle viewModelInstance);
+
+    }
+}