1 files changed, 126 insertions, 0 deletions
diff --git a/mailnews/news/src/nsNewsDownloader.h b/mailnews/news/src/nsNewsDownloader.h
new file mode 100644
index 000000000..b9a018032
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+++ b/mailnews/news/src/nsNewsDownloader.h
@@ -0,0 +1,126 @@
+/* -*- Mode: C++; tab-width: 4; 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 _nsNewsDownloader_H_
+#define _nsNewsDownloader_H_
+
+
+#include "nsIMsgDatabase.h"
+#include "nsIUrlListener.h"
+#include "nsIMsgFolder.h"
+#include "nsIMsgHdr.h"
+#include "nsIMsgWindow.h"
+#include "nsIMsgSearchNotify.h"
+#include "nsIMsgSearchSession.h"
+
+// base class for downloading articles in a single newsgroup. Keys to download are passed in
+// to DownloadArticles method.
+class nsNewsDownloader : public nsIUrlListener, public nsIMsgSearchNotify
+{
+public:
+  nsNewsDownloader(nsIMsgWindow *window, nsIMsgDatabase *db, nsIUrlListener *listener);
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIURLLISTENER
+  NS_DECL_NSIMSGSEARCHNOTIFY
+
+  virtual nsresult DownloadArticles(nsIMsgWindow *window, nsIMsgFolder *folder, nsTArray<nsMsgKey> *pKeyArray);
+
+  bool ShouldAbort() const { return m_abort; }
+
+protected:
+  virtual ~nsNewsDownloader();
+
+  virtual int32_t Write(const char * /*block*/, int32_t length) {return length;}
+  virtual void Abort();
+  virtual void Complete();
+  virtual bool GetNextHdrToRetrieve();
+  virtual nsresult DownloadNext(bool firstTimeP);
+  virtual int32_t FinishDownload() {return 0;}
+  virtual int32_t  StartDownload() {return 0;}
+  virtual nsresult ShowProgress(const char16_t *progressString, int32_t percent);
+
+  nsTArray<nsMsgKey>      m_keysToDownload;
+  nsCOMPtr <nsIMsgFolder>  m_folder;
+  nsCOMPtr <nsIMsgDatabase> m_newsDB;
+  nsCOMPtr <nsIUrlListener> m_listener;
+  bool m_downloadFromKeys;
+  bool m_existedP;
+  bool m_wroteAnyP;
+  bool m_summaryValidP;
+  bool m_abort;
+  int32_t     m_numwrote;
+  nsMsgKey    m_keyToDownload;
+  nsCOMPtr <nsIMsgWindow> m_window;
+  nsCOMPtr <nsIMsgStatusFeedback> m_statusFeedback;
+  nsCOMPtr <nsIMsgSearchSession> m_searchSession;
+  int32_t m_lastPercent;
+  int64_t m_lastProgressTime;
+  nsresult  m_status;
+};
+
+
+// class for downloading articles in a single newsgroup to the offline store.
+class DownloadNewsArticlesToOfflineStore : public nsNewsDownloader
+{
+public:
+  DownloadNewsArticlesToOfflineStore(nsIMsgWindow *window, nsIMsgDatabase *db, nsIUrlListener *listener);
+  virtual ~DownloadNewsArticlesToOfflineStore();
+
+  NS_IMETHOD OnStartRunningUrl(nsIURI* url);
+  NS_IMETHOD OnStopRunningUrl(nsIURI* url, nsresult exitCode);
+protected:
+  virtual int32_t  StartDownload();
+  virtual int32_t FinishDownload();
+  virtual bool GetNextHdrToRetrieve();
+
+  nsCOMPtr <nsISimpleEnumerator>  m_headerEnumerator;
+  nsCOMPtr <nsIMsgDBHdr>  m_newsHeader;
+};
+
+// class for downloading all the articles that match the passed in search criteria
+// for a single newsgroup.
+class DownloadMatchingNewsArticlesToNewsDB : public DownloadNewsArticlesToOfflineStore
+{
+public:
+  DownloadMatchingNewsArticlesToNewsDB(nsIMsgWindow *window, nsIMsgFolder *folder, nsIMsgDatabase *newsDB,  nsIUrlListener *listener);
+  virtual ~DownloadMatchingNewsArticlesToNewsDB();
+  nsresult RunSearch(nsIMsgFolder *folder, nsIMsgDatabase *newsDB, nsIMsgSearchSession *searchSession);
+protected:
+};
+
+// this class iterates all the news servers for each group on the server that's configured for
+// offline use, downloads the messages that meet the download criteria for that newsgroup/server
+class nsMsgDownloadAllNewsgroups : public nsIUrlListener
+{
+public:
+  nsMsgDownloadAllNewsgroups(nsIMsgWindow *window, nsIUrlListener *listener);
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIURLLISTENER
+
+  nsresult ProcessNextGroup();
+
+protected:
+  virtual ~nsMsgDownloadAllNewsgroups();
+
+  bool     AdvanceToNextServer();
+  bool     AdvanceToNextGroup();
+  nsresult DownloadMsgsForCurrentGroup();
+
+  DownloadMatchingNewsArticlesToNewsDB *m_downloaderForGroup;
+
+  nsCOMPtr <nsIMsgFolder> m_currentFolder;
+  nsCOMPtr <nsIMsgWindow> m_window;
+  nsCOMPtr <nsIArray> m_allServers;
+  nsCOMPtr <nsIArray> m_allFolders;
+  nsCOMPtr <nsIMsgIncomingServer> m_currentServer;
+  nsCOMPtr <nsISimpleEnumerator> m_serverEnumerator;
+  nsCOMPtr <nsIUrlListener> m_listener;
+
+  bool m_downloadedHdrsForCurGroup;
+};
+
+#endif