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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 nsProgressManager_h__
#define nsProgressManager_h__
#include "nsITransferListener.h"
#include "nsTime.h"
#include "prtypes.h"
#include "plhash.h"
#include "structs.h" // for MWContext
/**
* An <tt>nsProgressManager</tt> object is used to manage the progress
* bar and status bar for a context.
*/
class nsProgressManager : public nsITransferListener
{
protected:
/**
* The context to which the progress manager is bound.
*/
MWContext* fContext;
nsProgressManager(MWContext* context);
virtual ~nsProgressManager(void);
public:
/**
* Ensure that a progress manager exists in the specified context,
* creating a new one if necessary. If the context is a nested grid
* context, this may recursively create progress managers in
* parent contexts as well.
*/
static void Ensure(MWContext* context);
/**
* Release the progress manager from the current context. This may
* or may not destroy the progress manager, depending on the progress
* manager's reference count. Note that the context's
* <b>progressManager</b> field is maintained by the progress manager
* object, and will be set to <b>NULL</b> only when the progress
* manager's reference count goes to zero and the progress manager
* is destroyed.
*/
static void Release(MWContext* context);
NS_DECL_ISUPPORTS
// The nsITransferListener interface.
NS_IMETHOD
OnStartBinding(const URL_Struct* url) = 0;
NS_IMETHOD
OnProgress(const URL_Struct* url, PRUint32 bytesReceived, PRUint32 contentLength) = 0;
NS_IMETHOD
OnStatus(const URL_Struct* url, const char* message) = 0;
NS_IMETHOD
OnSuspend(const URL_Struct* url) = 0;
NS_IMETHOD
OnResume(const URL_Struct* url) = 0;
NS_IMETHOD
OnStopBinding(const URL_Struct* url, PRInt32 status, const char* message) = 0;
};
#endif // nsProgressManager_h__
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