logsui/EngineSrc/CLogsClearDuplicates.cpp
changeset 0 e686773b3f54
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     1 /*
       
     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description: 
       
    15 *     Recent list duplicate cleaner
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 
       
    22 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
       
    23 #include <logfilterandeventconstants.hrh>
       
    24 #endif
       
    25 #include <logview.h>
       
    26 #include "CLogsClearDuplicates.h"
       
    27 
       
    28 // MODULE DATA STRUCTURES
       
    29 
       
    30 
       
    31 // CONSTANTS
       
    32 
       
    33 
       
    34 // ----------------------------------------------------------------------------
       
    35 // CLogsClearDuplicates::NewL
       
    36 // ----------------------------------------------------------------------------
       
    37 //
       
    38 CLogsClearDuplicates* CLogsClearDuplicates::NewL( RFs& aFsSession )
       
    39     {
       
    40     CLogsClearDuplicates* self = new (ELeave) CLogsClearDuplicates( aFsSession );
       
    41     CleanupStack::PushL( self );
       
    42     self->ConstructL();
       
    43     CleanupStack::Pop();
       
    44     return self;
       
    45     }
       
    46 
       
    47 // ----------------------------------------------------------------------------
       
    48 // CLogsClearDuplicates::CLogsClearDuplicates
       
    49 // ----------------------------------------------------------------------------
       
    50 //
       
    51 CLogsClearDuplicates::CLogsClearDuplicates( RFs& aFsSession ) :
       
    52     CActive( EPriorityStandard ),
       
    53     iFsSession( aFsSession )
       
    54     {
       
    55     }
       
    56 
       
    57 // ----------------------------------------------------------------------------
       
    58 // CLogsClearDuplicates::
       
    59 // ----------------------------------------------------------------------------
       
    60 //
       
    61 void CLogsClearDuplicates::ConstructL()
       
    62     {
       
    63     iLogClient = CLogClient::NewL( iFsSession );
       
    64     
       
    65     // Initialize database view for log events having "read" flag unset 
       
    66     iFlagClearView = CLogViewRecent::NewL( *iLogClient, *this );
       
    67     iFilterFlagClear = CLogFilter::NewL();
       
    68     iFilterFlagClear->SetFlags( KLogEventRead );
       
    69     iFilterFlagClear->SetNullFields( ELogFlagsField );
       
    70     
       
    71     // Initialize database view for log events having "ALS" flag set 
       
    72     iFlagClearViewALS = CLogViewRecent::NewL( *iLogClient, *this );
       
    73     iFilterFlagClearALS = CLogFilter::NewL();
       
    74     iFilterFlagClearALS->SetFlags( KLogEventALS );
       
    75     iClearViewALSIsSet = EFalse;  	
       
    76 	
       
    77     CActiveScheduler::Add( this ); 
       
    78     SetFlagClearViewL();
       
    79     }
       
    80 
       
    81 // ----------------------------------------------------------------------------
       
    82 // CLogsClearDuplicates::~CLogsClearDuplicates
       
    83 // ----------------------------------------------------------------------------
       
    84 //
       
    85 CLogsClearDuplicates::~CLogsClearDuplicates()
       
    86     {
       
    87     Cancel();     
       
    88     delete iFlagClearView;
       
    89     delete iFilterFlagClear;
       
    90     
       
    91     delete iFlagClearViewALS;
       
    92     delete iFilterFlagClearALS;
       
    93     
       
    94     delete iLogClient;
       
    95     }
       
    96 
       
    97 // ----------------------------------------------------------------------------
       
    98 // CLogsClearDuplicates::DoCancel
       
    99 // ----------------------------------------------------------------------------
       
   100 //
       
   101 void CLogsClearDuplicates::DoCancel()
       
   102     {     
       
   103     if( iFlagClearView )
       
   104         {
       
   105         iFlagClearView->Cancel();
       
   106         }
       
   107 
       
   108     if( iFlagClearViewALS )
       
   109         {
       
   110         iFlagClearViewALS->Cancel();
       
   111         }
       
   112         
       
   113     if( iLogClient )
       
   114         {
       
   115         iLogClient->Cancel();
       
   116         }
       
   117     }
       
   118 
       
   119 // ----------------------------------------------------------------------------
       
   120 // CLogsClearDuplicates::RunL
       
   121 // ----------------------------------------------------------------------------
       
   122 //
       
   123 void CLogsClearDuplicates::RunL()
       
   124     {
       
   125     // If iClearViewALSIsSet is false, the asynchronous request made in 
       
   126     // SetFlagClearViewL is finished. So we can proceed to call SetFlagClearViewALSL.
       
   127     if ( !iClearViewALSIsSet )
       
   128     	{
       
   129     	SetFlagClearViewALSL();
       
   130     	}
       
   131     
       
   132     }
       
   133 
       
   134 // ----------------------------------------------------------------------------
       
   135 // CLogsClearDuplicates::SetFlagClearViewALSL
       
   136 // 
       
   137 // Note: this will only get called if CLogsClearDuplicates::SetFlagClearViewL()
       
   138 // calls SetActive (there are unread events in the view)
       
   139 // ----------------------------------------------------------------------------
       
   140 //
       
   141 void CLogsClearDuplicates::SetFlagClearViewALSL()
       
   142     {
       
   143     Cancel();
       
   144     
       
   145     if( iFlagClearViewALS->SetRecentListL( ELogsMissedModel, *iFilterFlagClearALS, iStatus ))
       
   146         {
       
   147         iClearViewALSIsSet = ETrue;  // Set to ETrue, so RunL won't call this again
       
   148         SetActive();   
       
   149         }
       
   150     }
       
   151     
       
   152 // ----------------------------------------------------------------------------
       
   153 // CLogsClearDuplicates::SetFlagClearViewL
       
   154 // ----------------------------------------------------------------------------
       
   155 //
       
   156 void CLogsClearDuplicates::SetFlagClearViewL()
       
   157     {
       
   158     Cancel();
       
   159     
       
   160     if( iFlagClearView->SetRecentListL( ELogsMissedModel, *iFilterFlagClear, iStatus ) )
       
   161         {
       
   162         SetActive();
       
   163         }
       
   164     }
       
   165 
       
   166 // ----------------------------------------------------------------------------
       
   167 // CLogsClearDuplicates::HandleLogViewChangeEventAddedL
       
   168 // ----------------------------------------------------------------------------
       
   169 //
       
   170 void CLogsClearDuplicates::HandleLogViewChangeEventAddedL(
       
   171     TLogId /*aId*/,
       
   172     TInt /*aViewIndex*/,
       
   173     TInt /*aChangeIndex*/,
       
   174     TInt aTotalChangeCount )
       
   175     {
       
   176     if( aTotalChangeCount && !IsActive() )
       
   177         {
       
   178         iClearViewALSIsSet = EFalse;
       
   179         SetFlagClearViewL();
       
   180         }
       
   181     }
       
   182 
       
   183 // ----------------------------------------------------------------------------
       
   184 // CLogsClearDuplicates::HandleLogViewChangeEventChangedL
       
   185 // ----------------------------------------------------------------------------
       
   186 //
       
   187 void CLogsClearDuplicates::HandleLogViewChangeEventChangedL(
       
   188     TLogId /*aId*/,
       
   189     TInt /*aViewIndex*/,
       
   190     TInt /*aChangeIndex*/,
       
   191     TInt /*aTotalChangeCount*/ ) // no need to do anything in change notification
       
   192     {
       
   193     }
       
   194 
       
   195 // ----------------------------------------------------------------------------
       
   196 // CLogsClearDuplicates::HandleLogViewChangeEventDeletedL
       
   197 // ----------------------------------------------------------------------------
       
   198 //
       
   199 void CLogsClearDuplicates::HandleLogViewChangeEventDeletedL(
       
   200     TLogId /*aId*/,
       
   201     TInt /*aViewIndex*/,
       
   202     TInt /*aChangeIndex*/,
       
   203     TInt /*aTotalChangeCount*/ ) // no need to do anything in delete notification
       
   204     {
       
   205     }
       
   206 
       
   207 // ----------------------------------------------------------------------------
       
   208 // CLogsClearDuplicates::ClearDuplicatesL
       
   209 // ----------------------------------------------------------------------------
       
   210 //
       
   211 void CLogsClearDuplicates::ClearDuplicatesL( 
       
   212     TBool aDuplicates,
       
   213     CLogViewRecent* aView )
       
   214     {  
       
   215     // aDuplicates is true if there are events in missed view that have duplicates.
       
   216     // Clear all duplicates from provided CLogViewRecent
       
   217     if( aDuplicates && aView )
       
   218         {
       
   219         aView->ClearDuplicatesL();
       
   220         }
       
   221     
       
   222 
       
   223     // First flag all "not read" events to the secondary number (ALS) as "read". 
       
   224     // This has to be done separately cause just calling 
       
   225     // iFlagClearView->SetFlagsL(KLogEventRead) below would overwrite the ALS flag.  
       
   226     if( aView && iFlagClearViewALS->CountL() )  
       
   227         {        
       
   228         iFlagClearViewALS->SetFlagsL( KLogEventRead | KLogEventALS );
       
   229         }
       
   230         
       
   231     //Then flag all remaining "not read" events to "read" status. The "read" flag needs to be set
       
   232     //to prevent the already processd duplicates to show up later again. This is 
       
   233     //because an existing event turn to be a duplicate again if a new similar event 
       
   234     //is later inserted to db. So ClearDuplicatesL() just is not enough for this.
       
   235     if( aView && iFlagClearView->CountL() )  
       
   236         {        
       
   237         iFlagClearView->SetFlagsL( KLogEventRead );
       
   238         }
       
   239   	
       
   240     // 	
       
   241     iClearViewALSIsSet = EFalse;
       
   242    
       
   243     }