[NUI] depense code for crash of GetProperty()'s null parameter

[platform/core/csapi/tizenfx.git] / src / Tizen.NUI / src / internal / Object.cs

diff --git a/src/Tizen.NUI/src/internal/Object.cs b/src/Tizen.NUI/src/internal/Object.cs
index 54bc5af..2d64e4c 100755 (executable)
--- a/src/Tizen.NUI/src/internal/Object.cs
+++ b/src/Tizen.NUI/src/internal/Object.cs
@@ -1,40 +1,52 @@
-/** Copyright (c) 2017 Samsung Electronics Co., Ltd.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-* http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*
-*/
-
-/**
- * Static Helper class for Property
- * Internal
+/*
+ * Copyright(c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
  */
 
+
 namespace Tizen.NUI
 {
+    /// <summary>
+    /// Static Helper class for Property
+    /// Internal
+    /// </summary>
+    /// <since_tizen> 3 </since_tizen>
+    internal static class Object
+    {
+        public static PropertyValue GetProperty(global::System.Runtime.InteropServices.HandleRef handle, int index)
+        {
+            if(handle.Handle == System.IntPtr.Zero)
+            {
+                throw new System.InvalidOperationException("Error! NUI's native dali object is already disposed. OR the native dali object handle of NUI becomes null!");
+            }
 
-public static class Object
-{
-  public static PropertyValue GetProperty(global::System.Runtime.InteropServices.HandleRef handle, int index) {
-    PropertyValue ret = new PropertyValue(NDalicPINVOKE.Handle_GetProperty(handle, index), true);
-    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
-    return ret;
-  }
+            PropertyValue ret = new PropertyValue(NDalicPINVOKE.Handle_GetProperty(handle, index), true);
+            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
+            return ret;
+        }
 
-  public static void SetProperty( global::System.Runtime.InteropServices.HandleRef handle, int index, PropertyValue propertyValue)
-  {
-    NDalicPINVOKE.Handle_SetProperty(handle, index, PropertyValue.getCPtr(propertyValue));
-    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
-  }
-}
+        public static void SetProperty(global::System.Runtime.InteropServices.HandleRef handle, int index, PropertyValue propertyValue)
+        {
+            if (handle.Handle == System.IntPtr.Zero)
+            {
+                throw new System.InvalidOperationException("Error! NUI's native dali object is already disposed. OR the native dali object handle of NUI becomes null!");
+            }
+
+            NDalicPINVOKE.Handle_SetProperty(handle, index, PropertyValue.getCPtr(propertyValue));
+            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
+        }
+    }
 
 }