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os/persistentdata/loggingservices/eventlogger/LogCli/inc/LogViewWindow.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     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 __LOGVIEWWINDOW_H__

    17 #define __LOGVIEWWINDOW_H__

    18 

    19 // System includes

    20 #include <e32base.h>

    21 

    22 // User includes

    23 #include <logwrap.h>

    24 #include "LogServShared.h"

    25 #include "LogViewWindowFetcher.h"

    26 #include "LogViewWindowLockObserver.h"

    27 #include "LogViewChangeObserverInternal.h"

    28 

    29 // Classes referenced

    30 class CLogClient;

    31 class CLogPackage;

    32 class CLogChangeDefinition;

    33 class CLogFilterList;

    34 class MLogViewChangeObserver;

    35 class CLogViewSetupClientOp;

    36 class CLogViewWindowFetcher;

    37 class CLogViewWindowLockObserver;

    38 class CLogViewWindowChangeObserver;

    39 

    40 

    41 /////////////////////////////////////////////////////////////////////////////////////////

    42 // -----> CLogViewWindow (header)

    43 /////////////////////////////////////////////////////////////////////////////////////////

    44 NONSHARABLE_CLASS(CLogViewWindow) : public CLogActive, public MLogViewChangeObserverInternal, public MLogViewWindowFetcherObserver, public MLogViewWindowLockObserver

    45 /**

    46 @internalComponent

    47 */

    48 	{

    49 public:

    50 	CLogViewWindow(RLogSession& aSession, TLogViewId aViewId, TInt aWindowSize, MLogViewChangeObserver* aCascadeObserver, TInt aPriority);

    51 	~CLogViewWindow();

    52 	void ConstructL(CLogPackage& aPackage);

    53 

    54 public:

    55 

    56 	/**

    57 	 * Prepare the view

    58 	 */

    59 	TInt Setup(const CLogFilterList& aFilterList, TInt aParam, TLogFilterConstructionType aFilterConstructionType);

    60 

    61 	/**

    62 	 * Move the view position

    63 	 */

    64 	TBool NavigateL(TLogNavigation aNavigate, TRequestStatus& aStatus);

    65 

    66 	/**

    67 	 * Remove the specified log event from the window if its present

    68 	 */

    69 	void RemoveFromWindowIfPresentL(TLogId aId);

    70 

    71 	/**

    72 	 * Access the change observer (needed to construct the view)

    73 	 */

    74 	MLogViewChangeObserverInternal& ChangeObserver();

    75 

    76 	/**

    77 	 * Access the event at the current position

    78 	 */

    79 	const CLogEvent& CurrsorEvent() const;

    80 

    81 	/** gets iViewRecordCount */

    82 	inline TInt ViewRecordCount() const;

    83 

    84 private: // FROM MLogViewWindowLockObserver

    85 	void HandleWindowLockStatusChangeL(TLogViewLockStatus aStatus);

    86 

    87 private: // FROM MLogViewWindowFetcherObserver

    88 	void HandleFetchedWindowItemL(TInt aItemIndex, CLogEvent* aEvent);

    89 

    90 public: // FROM MLogViewChangeObserver

    91 	void HandleLogViewChangeEventAddedL(TLogId aId,   TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);

    92 	void HandleLogViewChangeEventChangedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);

    93 	void HandleLogViewChangeEventDeletedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);

    94 

    95 private: // FROM MLogViewChangeObserverInternal

    96 	void HandleLogViewChangeEventLogClearedL();

    97 

    98 private: // FROM CLogActive

    99 	void DoRunL();

   100 	void DoCancel();

   101 	void DoComplete(TInt& aComplete);

   102 

   103 private:

   104 	enum TWindowState

   105 		{

   106 		EStateIdle = 0,

   107 		EStateFetchingWindow,

   108 		EStateProcessingWindow,

   109 		EStateNavigateWithinWindow,

   110 		EStateLocked

   111 		};

   112 

   113 private:

   114 	void StateHandleWindowFetchStarting();

   115 	void StateHandleWindowFetchedL();

   116 	void StateHandleNavigation();

   117 

   118 private:

   119 	void CompleteRequest(TInt aCompletionCode = KErrNone);

   120 	void CalculateWindowForCursorPosition(TInt aCursorPosition, TLogWindow& aWindow) const;

   121 	void Reset();

   122 	void SilentCancel();

   123 	void RefetchL(const TLogWindow& aWindow, TInt aCursor);

   124 	void ChangeState(TWindowState aNewState);

   125 	void RemoveEvent(TInt aIndex);

   126 	TInt CalculateCursorPosition(TLogNavigation aNavigate) const;

   127 	TInt FindEvent(TLogId aId);

   128 	TInt FindAndRemoveEvent(TLogId aId);

   129 

   130 private:

   131 	RLogSession& iSession;

   132 	const TLogViewId iViewId;

   133 	const TInt iWindowSize;

   134 	MLogViewChangeObserver* iCascadeObserver;

   135 	RPointerArray<CLogEvent> iEvents;

   136 

   137 	TWindowState iState;

   138 	TLogWindowAndCursor iWindow;

   139 	TInt iViewRecordCount;

   140 

   141 	CLogViewSetupClientOp* iWindowPreparer;

   142 	CLogViewWindowFetcher* iWindowFetcher;

   143 	CLogViewWindowLockObserver* iWindowLockObserver;

   144 	CLogViewWindowChangeObserver* iWindowChangeObserver;

   145 	};

   146 

   147 

   148 inline 

   149 TInt CLogViewWindow::ViewRecordCount() const

   150 	{

   151 	return iViewRecordCount;

   152 	}

   153 

   154 #endif
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