gecko-dev/lib/libmsg/newspane.h

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3.2 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 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
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*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
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*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
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*/
#ifndef MSG_NEWSSEARCH_PANE_H
#define MSG_NEWSSEARCH_PANE_H
#include "msgspane.h"
#include "idarray.h"
typedef int OfflineNewsSearchExit(void *exitData);
typedef void OfflineNewsReportHit(void *hitData, MessageKey hitKey);
// this class is used to search off-line news databases, usually for
// applying off-line retrieval options to a database, or for applying
// header/article retention policies. We are using search to get its
// background url handling for free, and its matching engine.
// We had to subclass MSG_SearchPane to override GetURL (so we can provide
// our own exit function so that we can go on to the next part of the process)
// We subclass the Starting and Ending Update functions so we can look at
// each result as it comes in.
// Searches for retrieving off-line will typically look like this:
// Date > 01/23/96 AND Date < 01/23/97 AND Size < 5000 AND Status != isRead
// AND Status != Offline
// Searches for purging articles will typically look like this:
// Date < 01/23/96 AND Status == isRead AND Status == Offline
// Searches for purging headers will typically look like this:
// Date < 01/23/96 AND Status == isRead
// Customers will either wait for the whole array of matching keys
// to be constructed before acting on them (e.g., Offline retrieval)
// or will act on each key in turn (purging articles or headers). We
// could require that customers who want notification of each add
// become view listeners. Oh sure, why not.
class MSG_OfflineNewsSearchPane : public MSG_SearchPane
{
public:
MSG_OfflineNewsSearchPane(MWContext* context, MSG_Master* master);
virtual ~MSG_OfflineNewsSearchPane();
virtual int GetURL (URL_Struct *url, XP_Bool isSafe);
virtual void StartingUpdate(MSG_NOTIFY_CODE code, MSG_ViewIndex where,
int32 num);
virtual void EndingUpdate(MSG_NOTIFY_CODE code, MSG_ViewIndex where,
int32 num);
void CallExitFunc();
static void SearchExitFunc(URL_Struct *url , int status, MWContext *context);
IDArray *GetKeysFound() {return &m_keysFound;}
virtual void SetExitFunc(OfflineNewsSearchExit *exitFunc, void *exitFuncData);
virtual void SetReportHitFunction(OfflineNewsReportHit *hitFunc, void *hitData);
protected:
IDArray m_keysFound;
OfflineNewsSearchExit *m_exitFunc;
void *m_exitFuncData;
OfflineNewsReportHit *m_hitFunc;
void *m_hitFuncData;
};
#endif