gecko-dev/lib/libmsg/msgdwnof.cpp

210 строки
6.5 KiB
C++
Исходник Обычный вид История

1998-06-23 02:39:40 +04:00
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "msg.h"
#include "msgdwnof.h"
#include "pmsgsrch.h"
#include "msgfinfo.h"
#include "msgurlq.h"
#include "nwsartst.h"
#include "newsdb.h"
#include "listngst.h"
extern "C"
{
extern int MK_OUT_OF_MEMORY;
}
MSG_DownloadOfflineFoldersState::MSG_DownloadOfflineFoldersState(MSG_Pane *pane)
{
m_folderIterator = new MSG_FolderIterator(pane->GetMaster()->GetFolderTree());
m_pane = pane;
m_newsDB = NULL;
m_oneFolder = FALSE;
m_foundFolderToDownload = FALSE;
m_curFolder = NULL;
}
MSG_DownloadOfflineFoldersState::~MSG_DownloadOfflineFoldersState()
{
delete m_folderIterator;
}
int MSG_DownloadOfflineFoldersState::DoIt()
{
return DoSomeMore();
}
/* static */int MSG_DownloadOfflineFoldersState::FolderDoneCB(void *state, int /* status */)
{
MSG_DownloadOfflineFoldersState *downloadState = (MSG_DownloadOfflineFoldersState *) state;
return downloadState->DoSomeMore();
}
int MSG_DownloadOfflineFoldersState::DownloadOneFolder(MSG_FolderInfo *folder)
{
m_oneFolder = TRUE;
m_folderIterator->AdvanceToFolder(folder);
return DownloadFolder(folder);
}
int MSG_DownloadOfflineFoldersState::DownloadFolder(MSG_FolderInfo *folder)
{
char *url = folder->BuildUrl(NULL, MSG_MESSAGEKEYNONE);
if (!url)
return eOUT_OF_MEMORY;
m_curFolder = folder;
MSG_FolderInfoNews *newsFolder = folder->GetNewsFolderInfo();
XP_ASSERT(newsFolder);
const char* groupname = newsFolder->GetNewsgroupName();
MSG_Master *master = m_pane->GetMaster();
URL_Struct *url_struct;
url_struct = NET_CreateURLStruct(url, NET_DONT_RELOAD);
ListNewsGroupState * listState = new ListNewsGroupState(url, groupname, m_pane);
XPPtrArray referringPanes;
master->FindPanesReferringToFolder(newsFolder, &referringPanes);
for (int i = 0; i < referringPanes.GetSize(); i++)
{
MSG_Pane *pane = (MSG_Pane *) referringPanes.GetAt(i);
if (pane && pane->GetMsgView())
{
listState->SetView(pane->GetMsgView());
break;
}
}
listState->SetMaster(master);
listState->SetGetOldMessages(FALSE); // get messages below highwater mark if we don't have them
newsFolder->SetListNewsGroupState(listState);
url_struct->fe_data = this;
url_struct->msg_pane = m_pane;
MSG_UrlQueue::AddUrlToPane (url_struct, MSG_DownloadOfflineFoldersState::DownloadArticlesCB, m_pane, TRUE, FO_PRESENT);
return eSUCCESS;
}
/* static */ void MSG_DownloadOfflineFoldersState::DownloadArticlesCB(URL_Struct *url , int status, MWContext * /* context */)
{
if (status != MK_INTERRUPTED)
{
MSG_DownloadOfflineFoldersState *downloadState =
(MSG_DownloadOfflineFoldersState *) url->fe_data;
XP_ASSERT (downloadState);
if (downloadState)
downloadState->DownloadArticles(downloadState->GetCurFolder());
}
#ifdef DEBUG_bienvenu
else
XP_Trace("download articles interrupted\n");
#endif
}
int MSG_DownloadOfflineFoldersState::DownloadArticles(MSG_FolderInfo *curFolder)
{
XP_Bool useDefaults, byReadness, unreadOnly, byDate;
int32 daysOld;
int ret = 0;
MSG_GetOfflineRetrievalInfo(curFolder, &useDefaults, &byReadness, &unreadOnly, &byDate, &daysOld);
if (useDefaults)
{
// ### dmb find preferences! Change local variables above based on them.
}
MSG_SearchTermArray termArray;
MSG_SearchValue value;
if (byReadness && unreadOnly)
{
value.attribute = attribMsgStatus;
value.u.msgStatus = kIsRead;
termArray.Add(new MSG_SearchTerm(attribMsgStatus, opIsnt, &value, MSG_SearchBooleanAND, NULL));
}
if (byDate)
{
value.attribute = attribAgeInDays;
value.u.age = daysOld;
termArray.Add(new MSG_SearchTerm(attribAgeInDays, opIsLessThan, &value, MSG_SearchBooleanAND, NULL));
}
if (termArray.GetSize() == 0) // cons up a search term that will match every msg we need
{
value.attribute = attribMsgStatus;
value.u.msgStatus = kOffline;
termArray.Add(new MSG_SearchTerm(attribMsgStatus, opIsnt, &value, MSG_SearchBooleanAND, NULL));
}
char *url = curFolder->BuildUrl(NULL, MSG_MESSAGEKEYNONE);
if (!url)
return MK_OUT_OF_MEMORY;
MsgERR err = NewsGroupDB::Open(url, m_pane->GetMaster(), &m_newsDB);
if (err == eSUCCESS)
ret = DownloadMatchingNewsArticlesToNewsDB::SaveMatchingMessages(m_pane->GetContext(), curFolder,
m_newsDB, termArray, FolderDoneCB, this);
for (int32 index = 0; index < termArray.GetSize(); index++)
{
MSG_SearchTerm *doomedSearchTerm = termArray.GetAt(index);
if (doomedSearchTerm)
delete doomedSearchTerm;
}
return ret;
}
int MSG_DownloadOfflineFoldersState::DoSomeMore()
{
int ret = 0;
MSG_FolderInfo *nextFolder = m_folderIterator->Next();
XP_Bool prevFolderWasCategory = (m_curFolder) ? (m_curFolder->GetFlags() & MSG_FOLDER_FLAG_CATEGORY) != 0 : FALSE;
if (m_newsDB != NULL)
m_newsDB->Close();
m_newsDB = NULL;
if (m_oneFolder && !prevFolderWasCategory) // if we're only doing one folder, we're done.
return ret;
while (nextFolder)
{
MSG_FolderInfo *nextCategoryContainer = (prevFolderWasCategory) ? MSG_GetCategoryContainerForCategory(nextFolder) : 0;
uint32 folderPrefFlags = (nextCategoryContainer)
? nextCategoryContainer->GetFolderPrefFlags() : nextFolder->GetFolderPrefFlags();
// if we're doing one folder, and the category container has changed, we're done
if (m_oneFolder && prevFolderWasCategory &&
nextCategoryContainer != MSG_GetCategoryContainerForCategory(m_curFolder))
return ret;
MSG_FolderInfoNews *newsFolder = nextFolder->GetNewsFolderInfo();
if (newsFolder && newsFolder->IsSubscribed() && ((folderPrefFlags & MSG_FOLDER_PREF_OFFLINE) != 0) || m_oneFolder)
{
ret = DownloadFolder(nextFolder);
m_foundFolderToDownload = TRUE;
break;
}
else
nextFolder = m_folderIterator->Next();
}
ret = (m_foundFolderToDownload) ? ret : -1; // didn't find one folder!
if (nextFolder == NULL || ret == MK_CONNECTED)
{
if (m_pane && m_pane->GetURLChain())
m_pane->GetURLChain()->GetNextURL();
delete this; // would be nice to do this at a higher level.
}
return ret;
}