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// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#ifndef __LOGVIEWWINDOWFETCHER_H__
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#define __LOGVIEWWINDOWFETCHER_H__
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// System includes
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#include <e32base.h>
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// User includes
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#include <logwrap.h>
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#include "LogCliServShared.h"
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#include <logviewchangeobserver.h>
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// Classes referenced
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class RLogSession;
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/////////////////////////////////////////////////////////////////////////////////////////
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// -----> MLogViewWindowFetcherObserver (header)
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/////////////////////////////////////////////////////////////////////////////////////////
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class MLogViewWindowFetcherObserver
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/**
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@internalComponent
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*/
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{
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public:
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virtual void HandleFetchedWindowItemL(TInt aItemIndex, CLogEvent* aEvent) = 0;
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};
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/////////////////////////////////////////////////////////////////////////////////////////
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// -----> CLogViewWindowFetcher (header)
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/////////////////////////////////////////////////////////////////////////////////////////
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NONSHARABLE_CLASS(CLogViewWindowFetcher) : public CActive
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/**
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@internalComponent
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*/
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{
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public:
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CLogViewWindowFetcher(RLogSession& aSession, TLogViewId aViewId, MLogViewWindowFetcherObserver& aObserver, TInt aPriority);
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~CLogViewWindowFetcher();
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void ConstructL();
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public:
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/**
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* Fetch the specified window.
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*/
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void PrepareToFetchWindowL(const TLogWindowAndCursor& aRequestedWindow);
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/**
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* Start the asynchronous fetch
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*/
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void Start(TRequestStatus& aObserver);
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/**
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* Cancel any fetch operation but without notifying the observer
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*/
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void SilentCancel();
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/**
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* Access the window & cursor for the requested window
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*/
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inline const TLogWindowAndCursor& RequestedWindow() const;
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private:
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void Fetch(const TLogWindow& aWindow);
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void CompleteObserver(TInt aError);
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private: // FROM CActive
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void RunL();
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void DoCancel();
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TInt RunError(TInt aError);
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private:
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RLogSession& iSession;
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const TLogViewId iViewId;
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MLogViewWindowFetcherObserver& iObserver;
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private:
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TLogWindowAndCursor iRequestedWindow;
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//
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TRequestStatus* iObserverRequestStatus;
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CBufBase* iBuffer;
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TPtr8 iBufferPointer;
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TPckgBuf<TLogTransferWindow> iFetchWindowData;
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TPckgBuf<TLogClientServerData> iData;
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TLogWindowAndCursor iWindowReq;
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};
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/////////////////////////////////////////////////////////////////////////////////////////
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// -----> CLogViewWindowFetcher (inline)
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/////////////////////////////////////////////////////////////////////////////////////////
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inline const TLogWindowAndCursor& CLogViewWindowFetcher::RequestedWindow() const
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{
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return iRequestedWindow;
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}
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#endif
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