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/*
* 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.Collections.Generic;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
namespace Tizen.Network.Nfc
{
static internal class Globals
{
internal const string LogTag = "Tizen.Network.Nfc";
}
internal static class NfcConvertUtil
{
internal static byte[] IntLengthIntPtrToByteArray(IntPtr nativeValue, int length)
{
byte[] value = new byte[length];
if (nativeValue != IntPtr.Zero)
{
Marshal.Copy(nativeValue, value, 0, length);
}
return value;
}
internal static byte[] UintLengthIntPtrToByteArray(IntPtr nativeValue, uint length)
{
byte[] value = new byte[length];
if (nativeValue != IntPtr.Zero)
{
for (int i = 0; i < length; i++)
{
value[i] = Marshal.ReadByte(nativeValue);
nativeValue += sizeof(byte);
}
}
return value;
}
}
internal partial class NfcManagerImpl : IDisposable
{
private static readonly NfcManagerImpl _instance = new NfcManagerImpl();
private static readonly NfcTagAdapter _instanceTagAdapter = new NfcTagAdapter();
private static readonly NfcP2pAdapter _instanceP2pAdapter = new NfcP2pAdapter();
private static readonly NfcCardEmulationAdapter _instanceCardEmulationAdapter = new NfcCardEmulationAdapter();
private Dictionary<IntPtr, Interop.Nfc.VoidCallback> _callback_map = new Dictionary<IntPtr, Interop.Nfc.VoidCallback>();
private int _requestId = 0;
private bool disposed = false;
internal static NfcManagerImpl Instance
{
get
{
return _instance;
}
}
internal NfcTagAdapter TagAdapter
{
get
{
return _instanceTagAdapter;
}
}
internal NfcP2pAdapter P2pAdapter
{
get
{
return _instanceP2pAdapter;
}
}
internal NfcCardEmulationAdapter CardEmulationAdapter
{
get
{
return _instanceCardEmulationAdapter;
}
}
internal bool IsSupported
{
get
{
bool support = Interop.Nfc.IsSupported();
return support;
}
}
internal bool IsActivated
{
get
{
bool active = Interop.Nfc.IsActivated();
return active;
}
}
internal NfcNdefMessage CachedNdefMessage
{
get
{
IntPtr ndef = IntPtr.Zero; ;
int ret = Interop.Nfc.GetCachedMessage(out ndef);
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to get cached ndef message, Error - " + (NfcError)ret);
}
NfcNdefMessage ndefMessage = new NfcNdefMessage(ndef);
return ndefMessage;
}
}
internal NfcTagFilterType TagFilterType
{
get
{
int type = Interop.Nfc.GetTagFilter();
return (NfcTagFilterType)type;
}
set
{
Interop.Nfc.SetTagFilter((int)value);
}
}
internal NfcSecureElementType SecureElementType
{
get
{
int type;
int ret = Interop.Nfc.GetSecureElementType(out type);
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to get secure element type, Error - " + (NfcError)ret);
}
return (NfcSecureElementType)type;
}
set
{
int ret = Interop.Nfc.SetSecureElementType((int)value);
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to set secure element type, Error - " + (NfcError)ret);
}
}
}
internal bool SystemHandlerEnabled
{
get
{
bool systemhandler = Interop.Nfc.IsSystemHandlerEnabled();
return systemhandler;
}
set
{
int ret = Interop.Nfc.SetSystemHandlerEnable(value);
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to enable system handler, Error - " + (NfcError)ret);
}
}
}
private NfcManagerImpl()
{
Initialize();
}
~NfcManagerImpl()
{
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
Deinitialize();
disposed = true;
}
private void Initialize()
{
int ret = Interop.Nfc.Initialize();
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to Initialize Nfc, Error - " + (NfcError)ret);
NfcErrorFactory.ThrowNfcException(ret);
}
}
private void Deinitialize()
{
int ret = Interop.Nfc.Deinitialize();
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to Deinitialize Nfc, Error - " + (NfcError)ret);
}
}
internal Task SetActivationAsync(bool activation)
{
TaskCompletionSource<bool> task = new TaskCompletionSource<bool>();
IntPtr id = IntPtr.Zero;
lock (_callback_map)
{
id = (IntPtr)_requestId++;
_callback_map[id] = (error, key) =>
{
Log.Debug(Globals.LogTag, "nfc activated");
if (error != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Error occurs during Nfc activating, " + (NfcError)error);
task.SetException(new InvalidOperationException("Error occurs during Nfc activating, " + (NfcError)error));
}
task.SetResult(true);
lock (_callback_map)
{
_callback_map.Remove(key);
}
};
int ret = Interop.Nfc.SetActivation(activation, _callback_map[id], id);
if (ret != (int)NfcError.None)
{
Log.Error(Globals.LogTag, "Failed to activate nfc, Error - " + (NfcError)ret);
NfcErrorFactory.ThrowNfcException(ret);
}
}
return task.Task;
}
}
}
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