loggingservices/eventlogger/LogCli/inc/LogViewWindowChangeObserver.h
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     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 __LOGVIEWWINDOWCHANGEOBSERVER_H__
       
    17 #define __LOGVIEWWINDOWCHANGEOBSERVER_H__
       
    18 
       
    19 // System includes
       
    20 #include <e32base.h>
       
    21 
       
    22 // User includes
       
    23 #include "LogViewChangeObserverInternal.h"
       
    24 
       
    25 // Classes referenced
       
    26 class RLogSession;
       
    27 
       
    28 
       
    29 /////////////////////////////////////////////////////////////////////////////////////////
       
    30 // -----> CLogViewWindowChangeObserver (header)
       
    31 /////////////////////////////////////////////////////////////////////////////////////////
       
    32 NONSHARABLE_CLASS(CLogViewWindowChangeObserver) : public CBase, public MLogViewChangeObserverInternal
       
    33 /**
       
    34 @internalComponent
       
    35 */
       
    36 	{
       
    37 public:
       
    38 	enum TType
       
    39 		{
       
    40 		ELogEventTypeAdd = 0,
       
    41 		ELogEventTypeChange,
       
    42 		ELogEventTypeDelete
       
    43 		};
       
    44 
       
    45 public:
       
    46 	CLogViewWindowChangeObserver(MLogViewChangeObserverInternal& aObserver);
       
    47 	~CLogViewWindowChangeObserver();
       
    48 
       
    49 public:
       
    50 
       
    51 	/**
       
    52 	 * Request that the next change notification corresponding to the specified
       
    53 	 * log id and change type is ignored.
       
    54 	 */
       
    55 	void IgnoreNextEventL(TLogId aId, TType aType);
       
    56 
       
    57 private: // FROM MLogViewChangeObserver
       
    58 	void HandleLogViewChangeEventAddedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);
       
    59 	void HandleLogViewChangeEventChangedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);
       
    60 	void HandleLogViewChangeEventDeletedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);
       
    61 
       
    62 private: // FROM MLogViewChangeObserverInternal
       
    63 	void HandleLogViewChangeEventLogClearedL();
       
    64 
       
    65 private:
       
    66 	TInt Find(TLogId aId, TType aType) const;
       
    67 
       
    68 private:
       
    69 	class TIgnoreEvent
       
    70 		{
       
    71 	public:
       
    72 		inline TIgnoreEvent(TLogId aId, TType aType) : iId(aId), iType(aType) { }
       
    73 
       
    74 	public:
       
    75 		TLogId iId;
       
    76 		TType iType;
       
    77 		};
       
    78 	
       
    79 private:
       
    80 	MLogViewChangeObserverInternal& iObserver;
       
    81 	RArray<TIgnoreEvent> iIgnoreStack;
       
    82 	};
       
    83 
       
    84 
       
    85 #endif