placeholder-command.hpp

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/*
  PLACEHOLDER-COMMAND.hpp  -  fake operation to mock command invocation from UI

   Copyright (C)
     2016,            Hermann Vosseler <Ichthyostega@web.de>

  **Lumiera** 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. See the file COPYING for further details.

*/


#ifndef STAGE_TEST_PLACEHOLDER_COMMAND_H
#define STAGE_TEST_PLACEHOLDER_COMMAND_H


#include "lib/error.hpp"
#include "lib/symbol.hpp"
#include "lib/idi/genfunc.hpp"
#include "lib/test/event-log.hpp"
#include "steam/control/command-def.hpp"
#include "lib/format-util.hpp"

#include <vector>
#include <string>


namespace stage {
namespace test{
  
  using std::string;
  using lib::Symbol;
  
    
  
  
  template<typename...ARGS>
  class PlaceholderCommand
    {
      static lib::test::EventLog log_;
      
      static string
      uniqueTypeInstance()
        {
          return lib::idi::generateExtendedID<PlaceholderCommand>();
        }
      
      static string
      fullTypeID()
        {
          return lib::idi::typeFullID<PlaceholderCommand>();
        }
      
      
      static void
      operate (ARGS ...args)
        {
          log_.call(fullTypeID(), "operate", std::forward<ARGS>(args)...);
        }
      
      static string
      capture (ARGS ...args)
        {
          return "Memento⧏" + util::join (util::stringify (args...),"⧓") + "⧐";
        }
      
      static void
      undo (ARGS ..., string memento)
        {
          log_.call(fullTypeID(), "undo", memento);
        }
      
      
    public:
      static steam::control::Command
      fabricateNewInstance (lib::test::EventLog const& invocationLog)
        {
          log_ = invocationLog;
          return steam::control::CommandDef{Symbol{uniqueTypeInstance()}}
                                 .operation(PlaceholderCommand::operate)
                                 .captureUndo(PlaceholderCommand::capture)
                                 .undoOperation(PlaceholderCommand::undo);

        }
    };
  
  
  template<typename...ARGS>
  lib::test::EventLog  PlaceholderCommand<ARGS...>::log_{"test-dummy-"+fullTypeID()};

  
  
  
}} // namespace stage::test
#endif /*STAGE_TEST_PLACEHOLDER_COMMAND_H*/