1 files changed, 104 insertions, 0 deletions
diff --git a/mailnews/news/src/nsNNTPArticleList.cpp b/mailnews/news/src/nsNNTPArticleList.cpp
new file mode 100644
index 000000000..106f5439f
--- /dev/null
+++ b/mailnews/news/src/nsNNTPArticleList.cpp
@@ -0,0 +1,104 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#include "msgCore.h"    // precompiled header...
+
+#include "nsCOMPtr.h"
+#include "nsNNTPArticleList.h"
+#include "nsIMsgFolder.h"
+#include "nsAutoPtr.h"
+#include "nsMsgKeyArray.h"
+
+NS_IMPL_ISUPPORTS(nsNNTPArticleList, nsINNTPArticleList)
+
+nsNNTPArticleList::nsNNTPArticleList()
+{
+}
+
+nsNNTPArticleList::~nsNNTPArticleList()
+{
+  if (m_newsDB) {
+    m_newsDB->Commit(nsMsgDBCommitType::kSessionCommit);
+    m_newsDB->Close(true);
+    m_newsDB = nullptr;
+  }
+
+  m_newsFolder = nullptr;
+}
+
+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(getter_AddRefs(m_newsDB));
+    NS_ENSURE_SUCCESS(rv,rv);
+    if (!m_newsDB) return NS_ERROR_UNEXPECTED;
+
+    RefPtr<nsMsgKeyArray> keys = new nsMsgKeyArray;
+    rv = m_newsDB->ListAllKeys(keys);
+    NS_ENSURE_SUCCESS(rv,rv);
+    keys->Sort();
+    m_idsInDB.AppendElements(keys->m_keys);
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNNTPArticleList::AddArticleKey(nsMsgKey key)
+{
+#ifdef DEBUG
+  m_idsOnServer.AppendElement(key);
+#endif
+
+  if (m_dbIndex < m_idsInDB.Length())
+  {
+    nsMsgKey idInDBToCheck = m_idsInDB[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.
+    // We'll add to m_idsDeleted for now and remove the id later
+    while (idInDBToCheck < key)
+    {
+      m_idsDeleted.AppendElement(idInDBToCheck);
+      if (m_dbIndex >= m_idsInDB.Length())
+        break;
+      idInDBToCheck = m_idsInDB[++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 and remove them now.
+  if (m_dbIndex < m_idsInDB.Length())
+    m_idsDeleted.AppendElements(&m_idsInDB[m_dbIndex],
+      m_idsInDB.Length() - m_dbIndex);
+  
+  if (m_idsDeleted.Length())
+    m_newsFolder->RemoveMessages(m_idsDeleted);
+
+#ifdef DEBUG
+  // make sure none of the deleted turned up on the idsOnServer list
+  for (uint32_t i = 0; i < m_idsDeleted.Length(); i++) {
+    NS_ASSERTION(!m_idsOnServer.Contains((nsMsgKey)m_idsDeleted[i]),
+      "a deleted turned up on the idsOnServer list");
+  }
+#endif
+  return NS_OK;
+}