1 files changed, 69 insertions, 0 deletions
diff --git a/cpp/src/polo/pairing/message/messagelistener.h b/cpp/src/polo/pairing/message/messagelistener.h
new file mode 100644
index 0000000..a3f1347
--- /dev/null
+++ b/cpp/src/polo/pairing/message/messagelistener.h
@@ -0,0 +1,69 @@
+// Copyright 2012 Google Inc. 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.
+
+#ifndef POLO_PAIRING_MESSAGE_MESSAGELISTENER_H_
+#define POLO_PAIRING_MESSAGE_MESSAGELISTENER_H_
+
+#include "polo/pairing/poloerror.h"
+#include "polo/pairing/message/configurationackmessage.h"
+#include "polo/pairing/message/configurationmessage.h"
+#include "polo/pairing/message/optionsmessage.h"
+#include "polo/pairing/message/pairingrequestackmessage.h"
+#include "polo/pairing/message/pairingrequestmessage.h"
+#include "polo/pairing/message/secretackmessage.h"
+#include "polo/pairing/message/secretmessage.h"
+
+namespace polo {
+namespace pairing {
+namespace message {
+
+// A listener interface for Polo messages.
+class MessageListener {
+ public:
+  virtual ~MessageListener() {}
+
+  // Handles a message containing the peer's configuration.
+  virtual void OnConfigurationMessage(
+      const ConfigurationMessage& message) = 0;
+
+  // Handles an acknowledgment that the peer received the local configuration.
+  virtual void OnConfigurationAckMessage(
+      const ConfigurationAckMessage& message) = 0;
+
+  // Handles a message containing the peer's supported pairing options.
+  virtual void OnOptionsMessage(const OptionsMessage& message) = 0;
+
+  // Handles a message from the peer requesting a pairing session.
+  virtual void OnPairingRequestMessage(
+      const PairingRequestMessage& message) = 0;
+
+  // Handles a message from the peer acknowledging a pairing request.
+  virtual void OnPairingRequestAckMessage(
+      const PairingRequestAckMessage& message) = 0;
+
+  // Handles a challenge message from the peer.
+  virtual void OnSecretMessage(const SecretMessage& message) = 0;
+
+  // Handles an challenge response from the peer.
+  virtual void OnSecretAckMessage(const SecretAckMessage& message) = 0;
+
+  // Handles a Polo error.
+  virtual void OnError(PoloError error) = 0;
+};
+
+}  // namespace message
+}  // namespace pairing
+}  // namespace polo
+
+#endif  // POLO_PAIRING_MESSAGE_MESSAGELISTENER_H_