1 files changed, 127 insertions, 0 deletions
diff --git a/Tizen.Network.Nfc/Tizen.Network.Nfc/NfcTagAdapter.cs b/Tizen.Network.Nfc/Tizen.Network.Nfc/NfcTagAdapter.cs
new file mode 100644
index 0000000..815b75f
--- /dev/null
+++ b/Tizen.Network.Nfc/Tizen.Network.Nfc/NfcTagAdapter.cs
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * 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.
+ */
+
+using System;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+
+namespace Tizen.Network.Nfc
+{
+    /// <summary>
+    /// A class for NFC Tag mode. It allows applications to handle Tag informations.
+    /// </summary>
+    /// <privilege>http://tizen.org/privilege/nfc</privilege>
+    public class NfcTagAdapter : IDisposable
+    {
+        private NfcTag _tag;
+        private bool disposed = false;
+
+        private event EventHandler<TagDiscoveredEventArgs> _tagDiscovered;
+
+        private Interop.Nfc.TagDiscoveredCallback _tagDiscoveredCallback;
+
+        /// <summary>
+        /// The event for receiving tag discovered notification.
+        /// </summary>
+        public event EventHandler<TagDiscoveredEventArgs> TagDiscovered
+        {
+            add
+            {
+                if (_tagDiscovered == null)
+                {
+                    RegisterTagDiscoveredEvent();
+                }
+                _tagDiscovered += value;
+            }
+            remove
+            {
+                _tagDiscovered -= value;
+                if (_tagDiscovered == null)
+                {
+                    UnregisterTagDiscoveredEvent();
+                }
+            }
+        }
+
+        internal NfcTagAdapter()
+        {
+        }
+
+        ~NfcTagAdapter()
+        {
+            Dispose(false);
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        private void Dispose(bool disposing)
+        {
+            if (disposed)
+                return;
+
+            if (disposing)
+            {
+                // Free managed objects.
+            }
+            //Free unmanaged objects
+            disposed = true;
+        }
+
+        /// <summary>
+        /// Gets current connected tag.
+        /// </summary>
+        /// <returns>NfcTag object.</returns>
+        public NfcTag GetConnectedTag()
+        {
+            IntPtr tagHandle = IntPtr.Zero;
+            int ret = Interop.Nfc.GetConnectedTag(out tagHandle);
+
+            if (ret != (int)NfcError.None)
+            {
+                Log.Error(Globals.LogTag, "Failed to get connected tag, Error - " + (NfcError)ret);
+                NfcErrorFactory.ThrowNfcException(ret);
+            }
+            _tag = new NfcTag(tagHandle);
+
+            return _tag;
+        }
+
+        private void RegisterTagDiscoveredEvent()
+        {
+            _tagDiscoveredCallback = (int type, IntPtr tagHandle, IntPtr userData) =>
+            {
+                NfcDiscoveredType tagType = (NfcDiscoveredType)type;
+                TagDiscoveredEventArgs e = new TagDiscoveredEventArgs(tagType, tagHandle);
+                _tagDiscovered.SafeInvoke(null, e);
+            };
+
+            int ret = Interop.Nfc.SetTagDiscoveredCallback(_tagDiscoveredCallback, IntPtr.Zero);
+            if (ret != (int)NfcError.None)
+            {
+                Log.Error(Globals.LogTag, "Failed to set tag discovered callback, Error - " + (NfcError)ret);
+            }
+        }
+
+        private void UnregisterTagDiscoveredEvent()
+        {
+            Interop.Nfc.UnsetTagDiscoveredCallback();
+        }
+    }
+}