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90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "msg.h"
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#include "msgoffnw.h"
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#include "msgpane.h"
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#include "msgfinfo.h"
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#include "newsdb.h"
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#include "newshdr.h"
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extern "C"
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{
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extern int MK_NEWS_ITEM_UNAVAILABLE;
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}
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MSG_OfflineNewsArtState::MSG_OfflineNewsArtState(MSG_Pane *pane,
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const char * /*group*/,
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uint32 messageNumber)
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{
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m_pane = pane;
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m_bytesReadSoFar = 0;
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if (!pane->GetFolder() || !pane->GetFolder()->IsNews())
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return ;
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MessageDBView *view = pane->GetMsgView();
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if (!view)
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return ;
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m_newsDB = view->GetDB()->GetNewsDB();
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if (m_newsDB)
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{
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m_newsHeader = m_newsDB->GetNewsHdrForKey(messageNumber);
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m_articleLength = (m_newsHeader) ? m_newsHeader->GetOfflineMessageLength(m_newsDB->GetDB()) : 0;
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}
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else
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m_newsHeader = NULL;
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}
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MSG_OfflineNewsArtState::~MSG_OfflineNewsArtState()
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{
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delete m_newsHeader;
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}
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// Returns negative error codes for errors, 0 for done, positive number
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// for number of bytes read.
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int MSG_OfflineNewsArtState::Process(char *outputBuffer, int outputBufSize)
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{
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int32 bytesRead;
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if (!m_newsHeader)
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return MK_NEWS_ITEM_UNAVAILABLE;
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if (m_bytesReadSoFar >= m_articleLength)
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{
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// m_newsHeader->OrFlags(kOffline); // eh? we're pulling it out of the db - no need to change flag
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return 0;
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}
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int bytesToCopy = MIN(outputBufSize, m_articleLength - m_bytesReadSoFar);
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bytesRead = m_newsHeader->ReadFromArticle(outputBuffer, bytesToCopy, m_bytesReadSoFar, m_newsDB->GetDB());
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m_bytesReadSoFar += bytesRead;
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return bytesRead;
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}
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int MSG_OfflineNewsArtState::Interrupt()
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{
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if (m_newsHeader != NULL)
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{
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delete m_newsHeader;
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m_newsHeader = NULL;
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}
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return 0;
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}
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