feat: callback-based ledger connection (#137)

* feat: callback-based ledger connection
* int -> void use sendToLedgerDeviceCallback only when needed
* fix(ledger): fix binds, make functions static
* update ledger patch
* monero.dart: add ledger callback api

5 files changed, 118 insertions, 140 deletions

diff --git a/impls/monero.dart/lib/monero.dart b/impls/monero.dart/lib/monero.dart
index 17f0a13..a80924e 100644
--- a/impls/monero.dart/lib/monero.dart
+++ b/impls/monero.dart/lib/monero.dart
@@ -3515,87 +3515,95 @@ int MONERO_Wallet_getBytesSent(wallet ptr) {
 }
 
 @Deprecated("TODO")
-bool Wallet_getStateIsConnected(wallet ptr) {
+bool Wallet_getStateIsConnected() {
   debugStart?.call('MONERO_Wallet_getStateIsConnected');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getStateIsConnected(ptr);
+  final ret = lib!.MONERO_Wallet_getStateIsConnected();
   debugEnd?.call('MONERO_Wallet_getStateIsConnected');
   return ret;
 }
 
 @Deprecated("TODO")
-Pointer<UnsignedChar> Wallet_getSendToDevice(wallet ptr) {
+Pointer<UnsignedChar> Wallet_getSendToDevice() {
   debugStart?.call('MONERO_Wallet_getSendToDevice');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getSendToDevice(ptr);
+  final ret = lib!.MONERO_Wallet_getSendToDevice();
   debugEnd?.call('MONERO_Wallet_getSendToDevice');
   return ret;
 }
 
 @Deprecated("TODO")
-int Wallet_getSendToDeviceLength(wallet ptr) {
+int Wallet_getSendToDeviceLength() {
   debugStart?.call('MONERO_Wallet_getSendToDeviceLength');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getSendToDeviceLength(ptr);
+  final ret = lib!.MONERO_Wallet_getSendToDeviceLength();
   debugEnd?.call('MONERO_Wallet_getSendToDeviceLength');
   return ret;
 }
 
 @Deprecated("TODO")
-Pointer<UnsignedChar> Wallet_getReceivedFromDevice(wallet ptr) {
+Pointer<UnsignedChar> Wallet_getReceivedFromDevice() {
   debugStart?.call('MONERO_Wallet_getReceivedFromDevice');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getReceivedFromDevice(ptr);
+  final ret = lib!.MONERO_Wallet_getReceivedFromDevice();
   debugEnd?.call('MONERO_Wallet_getReceivedFromDevice');
   return ret;
 }
 
 @Deprecated("TODO")
-int Wallet_getReceivedFromDeviceLength(wallet ptr) {
+int Wallet_getReceivedFromDeviceLength() {
   debugStart?.call('MONERO_Wallet_getReceivedFromDeviceLength');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getReceivedFromDeviceLength(ptr);
+  final ret = lib!.MONERO_Wallet_getReceivedFromDeviceLength();
   debugEnd?.call('MONERO_Wallet_getReceivedFromDeviceLength');
   return ret;
 }
 
 @Deprecated("TODO")
-bool Wallet_getWaitsForDeviceSend(wallet ptr) {
+bool Wallet_getWaitsForDeviceSend() {
   debugStart?.call('MONERO_Wallet_getWaitsForDeviceSend');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getWaitsForDeviceSend(ptr);
+  final ret = lib!.MONERO_Wallet_getWaitsForDeviceSend();
   debugEnd?.call('MONERO_Wallet_getWaitsForDeviceSend');
   return ret;
 }
 
 @Deprecated("TODO")
-bool Wallet_getWaitsForDeviceReceive(wallet ptr) {
+bool Wallet_getWaitsForDeviceReceive() {
   debugStart?.call('MONERO_Wallet_getWaitsForDeviceReceive');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_getWaitsForDeviceReceive(ptr);
+  final ret = lib!.MONERO_Wallet_getWaitsForDeviceReceive();
   debugEnd?.call('MONERO_Wallet_getWaitsForDeviceReceive');
   return ret;
 }
 
 @Deprecated("TODO")
-void Wallet_setDeviceReceivedData(
-    wallet ptr, Pointer<UnsignedChar> data, int len) {
+void Wallet_setDeviceReceivedData(Pointer<UnsignedChar> data, int len) {
   debugStart?.call('MONERO_Wallet_setDeviceReceivedData');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_setDeviceReceivedData(ptr, data, len);
+  final ret = lib!.MONERO_Wallet_setDeviceReceivedData(data, len);
   debugEnd?.call('MONERO_Wallet_setDeviceReceivedData');
   return ret;
 }
 
 @Deprecated("TODO")
-void Wallet_setDeviceSendData(wallet ptr, Pointer<UnsignedChar> data, int len) {
+void Wallet_setDeviceSendData(Pointer<UnsignedChar> data, int len) {
   debugStart?.call('MONERO_Wallet_setDeviceSendData');
   lib ??= MoneroC(DynamicLibrary.open(libPath));
-  final ret = lib!.MONERO_Wallet_setDeviceSendData(ptr, data, len);
+  final ret = lib!.MONERO_Wallet_setDeviceSendData(data, len);
   debugEnd?.call('MONERO_Wallet_setDeviceSendData');
   return ret;
 }
-  
+
+@Deprecated("TODO")
+void Wallet_setLedgerCallback(Pointer<NativeFunction<Void Function(Pointer<UnsignedChar>, UnsignedInt)>> callback) {
+  debugStart?.call('MONERO_Wallet_setDeviceSendData');
+  lib ??= MoneroC(DynamicLibrary.open(libPath));
+  final ret = lib!.MONERO_Wallet_setLedgerCallback(callback);
+  debugEnd?.call('MONERO_Wallet_setDeviceSendData');
+  return ret;
+}
+
 // WalletManager
 @Deprecated("TODO")
 typedef WalletManager = Pointer<Void>;
diff --git a/impls/monero.dart/lib/src/checksum_monero.dart b/impls/monero.dart/lib/src/checksum_monero.dart
index b907f7c..fdbfbaa 100644
--- a/impls/monero.dart/lib/src/checksum_monero.dart
+++ b/impls/monero.dart/lib/src/checksum_monero.dart
@@ -1,4 +1,4 @@
 // ignore_for_file: constant_identifier_names
-const String wallet2_api_c_h_sha256 = "9e80c4b59a0509aa02fbf01e8df2881b89f82225d1765bfa7856cbdbaf7af116";
-const String wallet2_api_c_cpp_sha256 = "d229507db508e574bd2badf4819a38dbead8c16a84311ad32c22c887a6003439-0232839913b13cf0ab0bb7ad25fff0c05f37d2fe";
+const String wallet2_api_c_h_sha256 = "91218f60e937753a606b1db899ee2ed66a1b02144eb2d79b950ce59804397f84";
+const String wallet2_api_c_cpp_sha256 = "282128494f3419c128dff7ed67daadd9c2ad0600d10557e829df03d9bc1ad891-0232839913b13cf0ab0bb7ad25fff0c05f37d2fe";
 const String wallet2_api_c_exp_sha256 = "d0f95f1f3bc49f1f59fe4eb0b61826128d7d3bb75405d5a01a252d02db03097d";
diff --git a/impls/monero.dart/lib/src/generated_bindings_monero.g.dart b/impls/monero.dart/lib/src/generated_bindings_monero.g.dart
index 77e2899..81649b1 100644
--- a/impls/monero.dart/lib/src/generated_bindings_monero.g.dart
+++ b/impls/monero.dart/lib/src/generated_bindings_monero.g.dart
@@ -4351,120 +4351,83 @@ class MoneroC {
   late final _MONERO_Wallet_getBytesSent = _MONERO_Wallet_getBytesSentPtr
       .asFunction<int Function(ffi.Pointer<ffi.Void>)>();
 
-  bool MONERO_Wallet_getStateIsConnected(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getStateIsConnected(
-      wallet_ptr,
-    );
+  bool MONERO_Wallet_getStateIsConnected() {
+    return _MONERO_Wallet_getStateIsConnected();
   }
 
   late final _MONERO_Wallet_getStateIsConnectedPtr =
-      _lookup<ffi.NativeFunction<ffi.Bool Function(ffi.Pointer<ffi.Void>)>>(
+      _lookup<ffi.NativeFunction<ffi.Bool Function()>>(
           'MONERO_Wallet_getStateIsConnected');
   late final _MONERO_Wallet_getStateIsConnected =
-      _MONERO_Wallet_getStateIsConnectedPtr.asFunction<
-          bool Function(ffi.Pointer<ffi.Void>)>();
+      _MONERO_Wallet_getStateIsConnectedPtr.asFunction<bool Function()>();
 
-  ffi.Pointer<ffi.UnsignedChar> MONERO_Wallet_getSendToDevice(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getSendToDevice(
-      wallet_ptr,
-    );
+  ffi.Pointer<ffi.UnsignedChar> MONERO_Wallet_getSendToDevice() {
+    return _MONERO_Wallet_getSendToDevice();
   }
 
-  late final _MONERO_Wallet_getSendToDevicePtr = _lookup<
-      ffi.NativeFunction<
-          ffi.Pointer<ffi.UnsignedChar> Function(
-              ffi.Pointer<ffi.Void>)>>('MONERO_Wallet_getSendToDevice');
-  late final _MONERO_Wallet_getSendToDevice =
-      _MONERO_Wallet_getSendToDevicePtr.asFunction<
-          ffi.Pointer<ffi.UnsignedChar> Function(ffi.Pointer<ffi.Void>)>();
+  late final _MONERO_Wallet_getSendToDevicePtr =
+      _lookup<ffi.NativeFunction<ffi.Pointer<ffi.UnsignedChar> Function()>>(
+          'MONERO_Wallet_getSendToDevice');
+  late final _MONERO_Wallet_getSendToDevice = _MONERO_Wallet_getSendToDevicePtr
+      .asFunction<ffi.Pointer<ffi.UnsignedChar> Function()>();
 
-  int MONERO_Wallet_getSendToDeviceLength(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getSendToDeviceLength(
-      wallet_ptr,
-    );
+  int MONERO_Wallet_getSendToDeviceLength() {
+    return _MONERO_Wallet_getSendToDeviceLength();
   }
 
   late final _MONERO_Wallet_getSendToDeviceLengthPtr =
-      _lookup<ffi.NativeFunction<ffi.Size Function(ffi.Pointer<ffi.Void>)>>(
+      _lookup<ffi.NativeFunction<ffi.Size Function()>>(
           'MONERO_Wallet_getSendToDeviceLength');
   late final _MONERO_Wallet_getSendToDeviceLength =
-      _MONERO_Wallet_getSendToDeviceLengthPtr.asFunction<
-          int Function(ffi.Pointer<ffi.Void>)>();
+      _MONERO_Wallet_getSendToDeviceLengthPtr.asFunction<int Function()>();
 
-  ffi.Pointer<ffi.UnsignedChar> MONERO_Wallet_getReceivedFromDevice(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getReceivedFromDevice(
-      wallet_ptr,
-    );
+  ffi.Pointer<ffi.UnsignedChar> MONERO_Wallet_getReceivedFromDevice() {
+    return _MONERO_Wallet_getReceivedFromDevice();
   }
 
-  late final _MONERO_Wallet_getReceivedFromDevicePtr = _lookup<
-      ffi.NativeFunction<
-          ffi.Pointer<ffi.UnsignedChar> Function(
-              ffi.Pointer<ffi.Void>)>>('MONERO_Wallet_getReceivedFromDevice');
+  late final _MONERO_Wallet_getReceivedFromDevicePtr =
+      _lookup<ffi.NativeFunction<ffi.Pointer<ffi.UnsignedChar> Function()>>(
+          'MONERO_Wallet_getReceivedFromDevice');
   late final _MONERO_Wallet_getReceivedFromDevice =
       _MONERO_Wallet_getReceivedFromDevicePtr.asFunction<
-          ffi.Pointer<ffi.UnsignedChar> Function(ffi.Pointer<ffi.Void>)>();
+          ffi.Pointer<ffi.UnsignedChar> Function()>();
 
-  int MONERO_Wallet_getReceivedFromDeviceLength(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getReceivedFromDeviceLength(
-      wallet_ptr,
-    );
+  int MONERO_Wallet_getReceivedFromDeviceLength() {
+    return _MONERO_Wallet_getReceivedFromDeviceLength();
   }
 
   late final _MONERO_Wallet_getReceivedFromDeviceLengthPtr =
-      _lookup<ffi.NativeFunction<ffi.Size Function(ffi.Pointer<ffi.Void>)>>(
+      _lookup<ffi.NativeFunction<ffi.Size Function()>>(
           'MONERO_Wallet_getReceivedFromDeviceLength');
   late final _MONERO_Wallet_getReceivedFromDeviceLength =
       _MONERO_Wallet_getReceivedFromDeviceLengthPtr.asFunction<
-          int Function(ffi.Pointer<ffi.Void>)>();
+          int Function()>();
 
-  bool MONERO_Wallet_getWaitsForDeviceSend(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getWaitsForDeviceSend(
-      wallet_ptr,
-    );
+  bool MONERO_Wallet_getWaitsForDeviceSend() {
+    return _MONERO_Wallet_getWaitsForDeviceSend();
   }
 
   late final _MONERO_Wallet_getWaitsForDeviceSendPtr =
-      _lookup<ffi.NativeFunction<ffi.Bool Function(ffi.Pointer<ffi.Void>)>>(
+      _lookup<ffi.NativeFunction<ffi.Bool Function()>>(
           'MONERO_Wallet_getWaitsForDeviceSend');
   late final _MONERO_Wallet_getWaitsForDeviceSend =
-      _MONERO_Wallet_getWaitsForDeviceSendPtr.asFunction<
-          bool Function(ffi.Pointer<ffi.Void>)>();
+      _MONERO_Wallet_getWaitsForDeviceSendPtr.asFunction<bool Function()>();
 
-  bool MONERO_Wallet_getWaitsForDeviceReceive(
-    ffi.Pointer<ffi.Void> wallet_ptr,
-  ) {
-    return _MONERO_Wallet_getWaitsForDeviceReceive(
-      wallet_ptr,
-    );
+  bool MONERO_Wallet_getWaitsForDeviceReceive() {
+    return _MONERO_Wallet_getWaitsForDeviceReceive();
   }
 
   late final _MONERO_Wallet_getWaitsForDeviceReceivePtr =
-      _lookup<ffi.NativeFunction<ffi.Bool Function(ffi.Pointer<ffi.Void>)>>(
+      _lookup<ffi.NativeFunction<ffi.Bool Function()>>(
           'MONERO_Wallet_getWaitsForDeviceReceive');
   late final _MONERO_Wallet_getWaitsForDeviceReceive =
-      _MONERO_Wallet_getWaitsForDeviceReceivePtr.asFunction<
-          bool Function(ffi.Pointer<ffi.Void>)>();
+      _MONERO_Wallet_getWaitsForDeviceReceivePtr.asFunction<bool Function()>();
 
   void MONERO_Wallet_setDeviceReceivedData(
-    ffi.Pointer<ffi.Void> wallet_ptr,
     ffi.Pointer<ffi.UnsignedChar> data,
     int len,
   ) {
     return _MONERO_Wallet_setDeviceReceivedData(
-      wallet_ptr,
       data,
       len,
     );
@@ -4472,22 +4435,17 @@ class MoneroC {
 
   late final _MONERO_Wallet_setDeviceReceivedDataPtr = _lookup<
       ffi.NativeFunction<
-          ffi.Void Function(
-              ffi.Pointer<ffi.Void>,
-              ffi.Pointer<ffi.UnsignedChar>,
+          ffi.Void Function(ffi.Pointer<ffi.UnsignedChar>,
               ffi.Size)>>('MONERO_Wallet_setDeviceReceivedData');
   late final _MONERO_Wallet_setDeviceReceivedData =
       _MONERO_Wallet_setDeviceReceivedDataPtr.asFunction<
-          void Function(
-              ffi.Pointer<ffi.Void>, ffi.Pointer<ffi.UnsignedChar>, int)>();
+          void Function(ffi.Pointer<ffi.UnsignedChar>, int)>();
 
   void MONERO_Wallet_setDeviceSendData(
-    ffi.Pointer<ffi.Void> wallet_ptr,
     ffi.Pointer<ffi.UnsignedChar> data,
     int len,
   ) {
     return _MONERO_Wallet_setDeviceSendData(
-      wallet_ptr,
       data,
       len,
     );
@@ -4495,14 +4453,40 @@ class MoneroC {
 
   late final _MONERO_Wallet_setDeviceSendDataPtr = _lookup<
       ffi.NativeFunction<
-          ffi.Void Function(
-              ffi.Pointer<ffi.Void>,
-              ffi.Pointer<ffi.UnsignedChar>,
+          ffi.Void Function(ffi.Pointer<ffi.UnsignedChar>,
               ffi.Size)>>('MONERO_Wallet_setDeviceSendData');
   late final _MONERO_Wallet_setDeviceSendData =
       _MONERO_Wallet_setDeviceSendDataPtr.asFunction<
+          void Function(ffi.Pointer<ffi.UnsignedChar>, int)>();
+
+  void MONERO_Wallet_setLedgerCallback(
+    ffi.Pointer<
+            ffi.NativeFunction<
+                ffi.Void Function(ffi.Pointer<ffi.UnsignedChar> command,
+                    ffi.UnsignedInt cmd_len)>>
+        sendToLedgerDevice,
+  ) {
+    return _MONERO_Wallet_setLedgerCallback(
+      sendToLedgerDevice,
+    );
+  }
+
+  late final _MONERO_Wallet_setLedgerCallbackPtr = _lookup<
+          ffi.NativeFunction<
+              ffi.Void Function(
+                  ffi.Pointer<
+                      ffi.NativeFunction<
+                          ffi.Void Function(
+                              ffi.Pointer<ffi.UnsignedChar> command,
+                              ffi.UnsignedInt cmd_len)>>)>>(
+      'MONERO_Wallet_setLedgerCallback');
+  late final _MONERO_Wallet_setLedgerCallback =
+      _MONERO_Wallet_setLedgerCallbackPtr.asFunction<
           void Function(
-              ffi.Pointer<ffi.Void>, ffi.Pointer<ffi.UnsignedChar>, int)>();
+              ffi.Pointer<
+                  ffi.NativeFunction<
+                      ffi.Void Function(ffi.Pointer<ffi.UnsignedChar> command,
+                          ffi.UnsignedInt cmd_len)>>)>();
 
   ffi.Pointer<ffi.Void> MONERO_WalletManager_createWallet(
     ffi.Pointer<ffi.Void> wm_ptr,
diff --git a/impls/monero.dart/lib/src/monero.dart b/impls/monero.dart/lib/src/monero.dart
index b2eb8c7..e142d6b 100644
--- a/impls/monero.dart/lib/src/monero.dart
+++ b/impls/monero.dart/lib/src/monero.dart
@@ -1033,14 +1033,12 @@ class MoneroWallet implements Wallet2Wallet {
     return monero.Wallet_getPolyseed(walletPtr, passphrase: passphrase);
   }
   
-  @override
-  Pointer<UnsignedChar> getReceivedFromDevice() {
-    return monero.Wallet_getReceivedFromDevice(walletPtr);
+  static Pointer<UnsignedChar> getReceivedFromDevice() {
+    return monero.Wallet_getReceivedFromDevice();
   }
   
-  @override
-  int getReceivedFromDeviceLength() {
-    return monero.Wallet_getReceivedFromDeviceLength(walletPtr);
+  static int getReceivedFromDeviceLength() {
+    return monero.Wallet_getReceivedFromDeviceLength();
   }
   
   @override
@@ -1052,20 +1050,17 @@ class MoneroWallet implements Wallet2Wallet {
   String getSeedLanguage() {
     return monero.Wallet_getSeedLanguage(walletPtr);
   }
-  
-  @override
-  Pointer<UnsignedChar> getSendToDevice() {
-    return monero.Wallet_getSendToDevice(walletPtr);
+
+  static Pointer<UnsignedChar> getSendToDevice() {
+    return monero.Wallet_getSendToDevice();
   }
   
-  @override
-  int getSendToDeviceLength() {
-    return monero.Wallet_getSendToDeviceLength(walletPtr);
+  static int getSendToDeviceLength() {
+    return monero.Wallet_getSendToDeviceLength();
   }
   
-  @override
-  bool getStateIsConnected() {
-    return monero.Wallet_getStateIsConnected(walletPtr);
+  static bool getStateIsConnected() {
+    return monero.Wallet_getStateIsConnected();
   }
   
   @override
@@ -1083,14 +1078,12 @@ class MoneroWallet implements Wallet2Wallet {
     return monero.Wallet_getUserNote(walletPtr, txid: txid);
   }
   
-  @override
-  bool getWaitsForDeviceReceive() {
-    return monero.Wallet_getWaitsForDeviceReceive(walletPtr);
+  static bool getWaitsForDeviceReceive() {
+    return monero.Wallet_getWaitsForDeviceReceive();
   }
   
-  @override
-  bool getWaitsForDeviceSend() {
-    return monero.Wallet_getWaitsForDeviceSend(walletPtr);
+  static bool getWaitsForDeviceSend() {
+    return monero.Wallet_getWaitsForDeviceSend();
   }
   
   @override
@@ -1357,14 +1350,16 @@ class MoneroWallet implements Wallet2Wallet {
     return monero.Wallet_setDevicePin(walletPtr, passphrase: passphrase);
   }
   
-  @override
-  void setDeviceReceivedData(Pointer<UnsignedChar> data, int len) {
-    monero.Wallet_setDeviceReceivedData(walletPtr, data, len);
+  static void setDeviceReceivedData(Pointer<UnsignedChar> data, int len) {
+    monero.Wallet_setDeviceReceivedData(data, len);
   }
   
-  @override
-  void setDeviceSendData(Pointer<UnsignedChar> data, int len) {
-    monero.Wallet_setDeviceSendData(walletPtr, data, len);
+  static void setDeviceSendData(Pointer<UnsignedChar> data, int len) {
+    monero.Wallet_setDeviceSendData(data, len);
+  }
+
+  static void setLedgerCallback(Pointer<NativeFunction<Void Function(Pointer<UnsignedChar>, UnsignedInt)>> callback) {
+    monero.Wallet_setLedgerCallback(callback);
   }
   
   @override
diff --git a/impls/monero.dart/lib/src/wallet2.dart b/impls/monero.dart/lib/src/wallet2.dart
index 2c07548..8c41ffa 100644
--- a/impls/monero.dart/lib/src/wallet2.dart
+++ b/impls/monero.dart/lib/src/wallet2.dart
@@ -364,15 +364,6 @@ abstract class Wallet2Wallet {
   String deviceShowAddress({required int accountIndex, required int addressIndex});
   bool reconnectDevice();
   int getBytesReceived();
-  bool getStateIsConnected();
-  Pointer<UnsignedChar> getSendToDevice();
-  int getSendToDeviceLength();
-  Pointer<UnsignedChar> getReceivedFromDevice();
-  int getReceivedFromDeviceLength();
-  bool getWaitsForDeviceSend();
-  bool getWaitsForDeviceReceive();
-  void setDeviceReceivedData(Pointer<UnsignedChar> data, int len);
-  void setDeviceSendData(Pointer<UnsignedChar> data, int len);
   int getBytesSent();
   Wallet2WalletListener getWalletListener();
 }