1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __LOGVIEWOBSERVER_H__

    17 #define __LOGVIEWOBSERVER_H__

    18 

    19 // System includes

    20 #include <e32base.h>

    21 

    22 // User includes

    23 #include <logwrap.h>

    24 #include <logview.h>

    25 

    26 // Classes referenced

    27 class CLogClient;

    28 class CLogChangeDefinition;

    29 class MLogViewChangeObserverInternal;

    30 

    31 

    32 /////////////////////////////////////////////////////////////////////////////////////////

    33 // -----> CLogViewObserver (header)

    34 /////////////////////////////////////////////////////////////////////////////////////////

    35 NONSHARABLE_CLASS(CLogViewObserver) : public CActive

    36 /**

    37 @internalComponent

    38 */

    39 	{

    40 public:

    41 	static CLogViewObserver* NewL(CLogView& aView, CLogClient& aClient, MLogViewChangeObserverInternal& aObserver, TLogViewId aViewId, TInt aPriority);

    42 	~CLogViewObserver();

    43 

    44 private:

    45 	CLogViewObserver(CLogView& aView, CLogClient& aClient, MLogViewChangeObserverInternal& aObserver, TLogViewId aViewId, TInt aPriority);

    46 	void ConstructL();

    47 

    48 public:

    49 	void RequestChanges();

    50 

    51 private: // FROM CActive

    52 	void RunL();

    53 	void DoCancel();

    54 	TInt RunError(TInt aError);

    55 

    56 private:

    57 	void RequestChangesCancel();

    58 	void FetchChangesL(TInt aBufferSizeRequired);

    59 	void NotifyObserverL();

    60 

    61 private:

    62 	CLogClient& iClient;

    63 	MLogViewChangeObserverInternal& iObserver;

    64 	TLogViewId iViewId;

    65 	CLogChangeDefinition* iChanges;

    66 	CLogView& iView;

    67 	};

    68 

    69 

    70 #endif