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/* -*- 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
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