зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
3.6 KiB
C++
116 строки
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsProgressManager_h__
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#define nsProgressManager_h__
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#include "nsITransferListener.h"
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#include "nsTime.h"
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#include "prtypes.h"
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#include "plhash.h"
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#include "structs.h" // for MWContext
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/**
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* An <tt>nsProgressManager</tt> object is used to manage the progress
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* bar and status bar for a context.
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*/
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class nsProgressManager : public nsITransferListener
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{
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protected:
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/**
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* The context to which the progress manager is bound.
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*/
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MWContext* fContext;
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nsProgressManager(MWContext* context);
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virtual ~nsProgressManager(void);
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public:
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/**
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* Ensure that a progress manager exists in the specified context,
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* creating a new one if necessary. If the context is a nested grid
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* context, this may recursively create progress managers in
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* parent contexts as well.
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*/
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static void Ensure(MWContext* context);
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/**
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* Release the progress manager from the current context. This may
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* or may not destroy the progress manager, depending on the progress
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* manager's reference count. Note that the context's
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* <b>progressManager</b> field is maintained by the progress manager
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* object, and will be set to <b>NULL</b> only when the progress
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* manager's reference count goes to zero and the progress manager
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* is destroyed.
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*/
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static void Release(MWContext* context);
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NS_DECL_ISUPPORTS
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// The nsITransferListener interface.
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NS_IMETHOD
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OnStartBinding(const URL_Struct* url) = 0;
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NS_IMETHOD
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OnProgress(const URL_Struct* url, PRUint32 bytesReceived, PRUint32 contentLength) = 0;
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NS_IMETHOD
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OnStatus(const URL_Struct* url, const char* message) = 0;
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NS_IMETHOD
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OnSuspend(const URL_Struct* url) = 0;
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NS_IMETHOD
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OnResume(const URL_Struct* url) = 0;
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NS_IMETHOD
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OnStopBinding(const URL_Struct* url, PRInt32 status, const char* message) = 0;
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};
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#endif // nsProgressManager_h__
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