1 files changed, 73 insertions, 0 deletions
diff --git a/mailnews/base/util/nsImapMoveCoalescer.h b/mailnews/base/util/nsImapMoveCoalescer.h
new file mode 100644
index 000000000..2085408fb
--- /dev/null
+++ b/mailnews/base/util/nsImapMoveCoalescer.h
@@ -0,0 +1,73 @@
+/* -*- 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/. */
+
+#ifndef _nsImapMoveCoalescer_H
+#define _nsImapMoveCoalescer_H
+
+#include "msgCore.h"
+#include "nsCOMArray.h"
+#include "nsIMsgWindow.h"
+#include "nsCOMPtr.h"
+#include "MailNewsTypes.h"
+#include "nsTArray.h"
+#include "nsIUrlListener.h"
+#include "nsIMsgCopyServiceListener.h"
+
+// imap move coalescer class - in order to keep nsImapMailFolder from growing like Topsy
+// Logically, we want to keep track of an nsTArray<nsMsgKey> per nsIMsgFolder, and then
+// be able to retrieve them one by one and play back the moves.
+// This utility class will be used by both the filter code and the offline playback code,
+// to avoid multiple moves to the same folder.
+
+class NS_MSG_BASE nsImapMoveCoalescer : public nsIUrlListener
+{
+public:
+  friend class nsMoveCoalescerCopyListener;
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIURLLISTENER
+
+  nsImapMoveCoalescer(nsIMsgFolder *sourceFolder, nsIMsgWindow *msgWindow);
+
+  nsresult AddMove(nsIMsgFolder *folder, nsMsgKey key);
+  nsresult PlaybackMoves(bool doNewMailNotification = false);
+  // this lets the caller store keys in an arbitrary number of buckets. If the bucket
+  // for the passed in index doesn't exist, it will get created.
+  nsTArray<nsMsgKey> *GetKeyBucket(uint32_t keyArrayIndex);
+  nsIMsgWindow *GetMsgWindow() {return m_msgWindow;}
+  bool HasPendingMoves() {return m_hasPendingMoves;}
+protected:
+  virtual ~nsImapMoveCoalescer();
+  // m_sourceKeyArrays and m_destFolders are parallel arrays.
+  nsTArray<nsTArray<nsMsgKey> > m_sourceKeyArrays;
+  nsCOMArray<nsIMsgFolder> m_destFolders;
+  nsCOMPtr <nsIMsgWindow> m_msgWindow;
+  nsCOMPtr <nsIMsgFolder> m_sourceFolder;
+  bool m_doNewMailNotification;
+  bool m_hasPendingMoves;
+  nsTArray<nsMsgKey> m_keyBuckets[2];
+  int32_t m_outstandingMoves;
+};
+
+class nsMoveCoalescerCopyListener final : public nsIMsgCopyServiceListener
+{
+public:
+    nsMoveCoalescerCopyListener(nsImapMoveCoalescer * coalescer, nsIMsgFolder *destFolder);
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIMSGCOPYSERVICELISTENER
+
+    nsCOMPtr <nsIMsgFolder> m_destFolder;
+
+      nsImapMoveCoalescer *m_coalescer;
+    // when we get OnStopCopy, update the folder. When we've finished all the copies,
+    // send the biff notification.
+
+private:
+    ~nsMoveCoalescerCopyListener();
+};
+
+
+#endif // _nsImapMoveCoalescer_H
+