mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-30 20:48:52 +00:00
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/* -*- 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.
|
|
*/
|
|
|
|
#ifndef _MsgBg_H_
|
|
#define _MsgBg_H_
|
|
|
|
#include "msgzap.h"
|
|
|
|
class MSG_Pane;
|
|
|
|
class msg_Background : public MSG_ZapIt {
|
|
public:
|
|
msg_Background();
|
|
virtual ~msg_Background();
|
|
|
|
/* Begin() kicks things off. Sometime after making this call, calls will
|
|
be made to DoSomeWork(). This will interrupt any current background
|
|
operation or URL running on the given MSG_Pane. */
|
|
virtual int Begin(MSG_Pane* pane);
|
|
|
|
|
|
/* Interrupt() interrupts the running background operation. Just does an
|
|
InterruptContext on the pane's context. */
|
|
virtual void Interrupt();
|
|
|
|
/* Whether we are currently doing our background operation. */
|
|
virtual XP_Bool IsRunning();
|
|
|
|
|
|
// This routine is called from netlib (via msgglue) to cause us to actually
|
|
// do something.
|
|
static int ProcessBackground(URL_Struct* urlstruct);
|
|
|
|
protected:
|
|
|
|
static msg_Background* FindBGObj(URL_Struct* urlstruct);
|
|
|
|
static void PreExit_s(URL_Struct* urlstruct, int status,
|
|
MWContext* context);
|
|
virtual void PreExit(URL_Struct* urlstruct, int status,
|
|
MWContext* context);
|
|
|
|
|
|
|
|
/* The below are the only routines typically redefined by subclasses. */
|
|
|
|
|
|
/* DoSomeWork() keeps getting called. If it returns
|
|
MK_WAITING_FOR_CONNECTION, that means it hasn't finished its stuff. If
|
|
it returns MK_CONNECTED, that means it has successfully finished. If it
|
|
returns a negative value, that means we failed and it's an error
|
|
condition. */
|
|
virtual int DoSomeWork() = 0;
|
|
|
|
|
|
/* AllDone() gets called when things are finished. If the given status is
|
|
negative, then we were interrupted or had an error. This is a good
|
|
place to kick off another background operation. If it returns TRUE,
|
|
then this background object will be destroyed. */
|
|
virtual XP_Bool AllDone(int status);
|
|
|
|
MSG_Pane* m_pane;
|
|
URL_Struct* m_urlstruct;
|
|
|
|
};
|
|
|
|
|
|
#endif /* _MsgBg_H_ */
|