RetroZilla/mailnews/news/src/nsNNTPArticleList.cpp
2015-10-20 23:03:22 -04:00

136 lines
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#include "msgCore.h" // precompiled header...
#include "nsCOMPtr.h"
#include "nsNNTPArticleList.h"
#include "nsIMsgFolder.h"
NS_IMPL_ISUPPORTS1(nsNNTPArticleList, nsINNTPArticleList)
nsNNTPArticleList::nsNNTPArticleList()
{
}
nsNNTPArticleList::~nsNNTPArticleList()
{
if (m_newsDB) {
m_newsDB->Commit(nsMsgDBCommitType::kSessionCommit);
m_newsDB->Close(PR_TRUE);
m_newsDB = nsnull;
}
m_newsFolder = nsnull;
}
NS_IMETHODIMP
nsNNTPArticleList::Initialize(nsIMsgNewsFolder *newsFolder)
{
nsresult rv;
NS_ENSURE_ARG_POINTER(newsFolder);
m_dbIndex = 0;
m_newsFolder = newsFolder;
nsCOMPtr <nsIMsgFolder> folder = do_QueryInterface(m_newsFolder, &rv);
NS_ENSURE_SUCCESS(rv,rv);
rv = folder->GetMsgDatabase(nsnull /* msgWindow */, getter_AddRefs(m_newsDB));
NS_ENSURE_SUCCESS(rv,rv);
if (!m_newsDB) return NS_ERROR_UNEXPECTED;
rv = m_newsDB->ListAllKeys(m_idsInDB);
NS_ENSURE_SUCCESS(rv,rv);
return NS_OK;
}
NS_IMETHODIMP
nsNNTPArticleList::AddArticleKey(PRInt32 key)
{
#ifdef DEBUG
m_idsOnServer.Add(key);
#endif
if (m_dbIndex < m_idsInDB.GetSize())
{
PRInt32 idInDBToCheck = m_idsInDB.GetAt(m_dbIndex);
// if there are keys in the database that aren't in the newsgroup
// on the server, remove them. We probably shouldn't do this if
// we have a copy of the article offline.
while (idInDBToCheck < key)
{
m_newsFolder->RemoveMessage(idInDBToCheck);
#ifdef DEBUG
m_idsDeleted.Add(idInDBToCheck);
#endif
if (m_dbIndex >= m_idsInDB.GetSize())
break;
idInDBToCheck = m_idsInDB.GetAt(++m_dbIndex);
}
if (idInDBToCheck == key)
m_dbIndex++;
}
return NS_OK;
}
NS_IMETHODIMP
nsNNTPArticleList::FinishAddingArticleKeys()
{
// if the last n messages in the group are cancelled, they won't have gotten removed
// so we have to go an removed them now.
PRUint32 totalCount = m_idsInDB.GetSize();
PRUint32 i;
for (i = m_dbIndex; i < totalCount; i++) {
m_newsFolder->RemoveMessage(m_idsInDB.GetAt(i));
#ifdef DEBUG
m_idsDeleted.Add(m_idsInDB.GetAt(i));
#endif
}
#ifdef DEBUG
// make sure none of the deleted turned up on the idsOnServer list
for (i = 0; i < m_idsDeleted.GetSize(); i++) {
NS_ASSERTION(m_idsOnServer.FindIndex((nsMsgKey)(m_idsDeleted.GetAt(i)), 0) == nsMsgViewIndex_None, "a deleted turned up on the idsOnServer list");
}
#endif
return NS_OK;
}