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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsMsgBaseUndoTxn_h_
#define nsMsgBaseUndoTxn_h_

#include "mozilla/Attributes.h"
#include "nsMsgTxn.h"
#include "nsTArray.h"
#include "nsCOMPtr.h"
#include "MailNewsTypes.h"
#include "nsIMsgFolder.h"


#define NS_MSGREADSTATETXN_IID \
{ /* 121FCE4A-3EA1-455C-8161-839E1557D0CF */ \
  0x121FCE4A, 0x3EA1, 0x455C, \
  { 0x81, 0x61, 0x83, 0x9E, 0x15, 0x57, 0xD0, 0xCF } \
}


//------------------------------------------------------------------------------
// A mark-all transaction handler. Helper for redo/undo of message read states.
//------------------------------------------------------------------------------
class NS_MSG_BASE nsMsgReadStateTxn : public nsMsgTxn
{
public:
  nsMsgReadStateTxn();
  virtual ~nsMsgReadStateTxn();

  nsresult Init(nsIMsgFolder *aParentFolder,
                uint32_t aNumKeys,
                nsMsgKey *aMsgKeyArray);
  NS_IMETHOD UndoTransaction() override;
  NS_IMETHOD RedoTransaction() override;

protected:
  NS_IMETHOD MarkMessages(bool aAsRead);

private:
  nsCOMPtr<nsIMsgFolder> mParentFolder;
  nsTArray<nsMsgKey>     mMarkedMessages;
};

#endif  // nsMsgBaseUndoTxn_h_