MessageHandler.h

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/*
 * Copyright (c) 2018 pongasoft
 *
 * Licensed under the Apache License, Version 2.0 or the MIT license,
 * at your option. You may not use this file except in compliance with
 * one of these licenses. You may obtain copies of the licenses at:
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 * https://opensource.org/licenses/MIT
 *
 * 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.
 * 
 * @author Yan Pujante
 */
 
#pragma once
 
#include "Messaging.h"
 
#include <map>
 
namespace pongasoft {
namespace VST {

class IMessageHandler
{
public:
  virtual ~IMessageHandler() = default;
  virtual tresult handleMessage(Message const &iMessage) = 0;
};

class MessageHandler : public IMessageHandler
{
public:
  // handleMessage
  tresult handleMessage(Message const &iMessage) override;
 
  // registerHandler
  void registerHandler(MessageID iMessageID, IMessageHandler *iMessageHandler);
 
private:
  // map of messageID to a handler
  std::map<MessageID, IMessageHandler *> fHandlers{};
};
 
}
}