public void ExecuteCommand(Command commandObj)
{
var obj = new CommandWithMemento
{
Command = commandObj,
Memento = commandObj.Execute()
};
UndoStack.Push(obj);
RedoStack.Clear();
}
public string Undo()
{
if (UndoPossible())
{
CommandWithMemento obj = UndoStack.Pop();
var memento = obj.Memento;
var command = obj.Command;
command.Subject.RestoreMemento(memento);
RedoStack.Push(obj);
return("Executed Undo: " + command.Action.Method.Name);
}
else
{
return("Nothing to Undo");
}
}
public string Redo()
{
if (RedoPossible())
{
var obj = RedoStack.Pop();
var obj2 = new CommandWithMemento()
{
Command = obj.Command,
Memento = obj.Command.Execute()
};
UndoStack.Push(obj2);
return("Executed Redo: " + obj2.Command.Action.Method.Name);
}
else
{
return("Nothing to Redo");
}
}