MaximaIPC.h

// -*- mode: c++; c-file-style: "linux"; c-basic-offset: 2; indent-tabs-mode: nil -*-
//
//  Copyright (C) 2020      Kuba Ober <kuba@bertec.com>
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
//  SPDX-License-Identifier: GPL-2.0+
 
#ifndef WXMAXIMA_MAXIMA_IPC_H
#define WXMAXIMA_MAXIMA_IPC_H
 
#include <memory>
#include <unordered_map>
#include <vector>
#include <utility>
#include <wx/hashmap.h>
#include <wx/string.h>
 
class wxMaxima;
class wxEvent;
class wxEvtHandler;
 
class MaximaIPC
{
public:
  explicit MaximaIPC(wxMaxima *wxm);
 
  void ReadInputData(const wxString &data);
  static void EnableIPC() { m_enabled = true; }
  static bool  GetEnableIPC() { return m_enabled; }
 
  bool DrainQueue();
 
private:
  wxMaxima *m_wxMaxima = nullptr;
  std::unordered_map<wxString, wxEvtHandler*, wxStringHash> m_eventTargets;
 
  struct QueuedEvent {
    wxEvtHandler *target;
    std::unique_ptr<wxEvent> event;
    QueuedEvent(wxEvtHandler *target, std::unique_ptr<wxEvent> &&event)
      : target(target), event(std::move(event)) {}
  };
  std::size_t m_queueTail = 0;
  std::vector<QueuedEvent> m_queue;
 
  static bool m_enabled;
};
 
#endif