PECengine/StorageManager2/ClientSrc/CPEngSIDContainer.cpp
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     1 /*
       
     2 * Copyright (c) 2005 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:  Storage Id container
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 #include    <e32std.h>
       
    22 #include    "CPEngSIdContainer.h"
       
    23 #include	"CPEngObserverContainer.h"
       
    24 
       
    25 
       
    26 // ============================ MEMBER FUNCTIONS ===============================
       
    27 
       
    28 // -----------------------------------------------------------------------------
       
    29 // CPEngSIdContainer::CPEngSIdContainer
       
    30 // C++ default constructor can NOT contain any code, that might leave.
       
    31 // -----------------------------------------------------------------------------
       
    32 //
       
    33 CPEngSIdContainer::CPEngSIdContainer()
       
    34         : iObservers( 2 ) // usually 2 observers for same SID
       
    35     {
       
    36     }
       
    37 
       
    38 // -----------------------------------------------------------------------------
       
    39 // CPEngSIdContainer::ConstructL
       
    40 // Symbian 2nd phase constructor can leave.
       
    41 // -----------------------------------------------------------------------------
       
    42 //
       
    43 void CPEngSIdContainer::ConstructL(
       
    44     const TDesC& aSId )
       
    45     {
       
    46     iSId = aSId.AllocL();
       
    47     // allocated some slots for observers
       
    48     User::LeaveIfError( AllocateSlots( 1 ) );
       
    49     }
       
    50 
       
    51 // -----------------------------------------------------------------------------
       
    52 // CPEngSIdContainer::NewLC
       
    53 // Two-phased constructor.
       
    54 // -----------------------------------------------------------------------------
       
    55 //
       
    56 CPEngSIdContainer* CPEngSIdContainer::NewLC(
       
    57     const TDesC& aSId )
       
    58     {
       
    59     CPEngSIdContainer* self = new( ELeave ) CPEngSIdContainer();
       
    60 
       
    61     CleanupStack::PushL( self );
       
    62     self->ConstructL( aSId );
       
    63 
       
    64     return self;
       
    65     }
       
    66 
       
    67 
       
    68 // Destructor
       
    69 CPEngSIdContainer::~CPEngSIdContainer()
       
    70     {
       
    71     // remove SID from Observers
       
    72     TInt count ( iObservers.Count() );
       
    73     for ( TInt x( 0 ) ; x < count; x++ )
       
    74         {
       
    75         iObservers[ x ]->RemoveSIdContainer( this );
       
    76         }
       
    77     iObservers.Reset();
       
    78     delete iSId;
       
    79     }
       
    80 
       
    81 
       
    82 // =============================================================================
       
    83 // Another function of the CPEngSIdContainer
       
    84 // =============================================================================
       
    85 
       
    86 
       
    87 // =============================================================================
       
    88 // New function of the MPEngSIDContainer class
       
    89 // =============================================================================
       
    90 
       
    91 // -----------------------------------------------------------------------------
       
    92 // CPEngSIdContainer::SId()
       
    93 // -----------------------------------------------------------------------------
       
    94 //
       
    95 const TDesC& CPEngSIdContainer::SId() const
       
    96     {
       
    97     return *iSId;
       
    98     }
       
    99 
       
   100 
       
   101 // -----------------------------------------------------------------------------
       
   102 // CPEngSIdContainer::AddObserverContainer()
       
   103 // -----------------------------------------------------------------------------
       
   104 //
       
   105 TInt CPEngSIdContainer::AddObserverContainer(
       
   106     const CPEngObserverContainer* aObserver )
       
   107     {
       
   108     TInt err ( iObservers.InsertInAddressOrder( aObserver ) );
       
   109     if  ( ( err == KErrNone ) || ( err == KErrAlreadyExists ) )
       
   110         {
       
   111 
       
   112         return KErrNone;
       
   113         }
       
   114     return err;
       
   115     }
       
   116 
       
   117 
       
   118 // -----------------------------------------------------------------------------
       
   119 // CPEngSIdContainer::RemoveObserverContainer()
       
   120 // -----------------------------------------------------------------------------
       
   121 //
       
   122 void CPEngSIdContainer::RemoveObserverContainer(
       
   123     const CPEngObserverContainer* aObserver )
       
   124     {
       
   125     TInt index ( iObservers.FindInAddressOrder( aObserver ) );
       
   126     if ( index != KErrNotFound )
       
   127         {
       
   128         iObservers.Remove( index );
       
   129         }
       
   130     }
       
   131 
       
   132 
       
   133 // =============================================================================
       
   134 // New function of the class
       
   135 // =============================================================================
       
   136 
       
   137 // -----------------------------------------------------------------------------
       
   138 // CPEngSIdContainer::NotifySIdChangeL()
       
   139 // -----------------------------------------------------------------------------
       
   140 //
       
   141 void CPEngSIdContainer::NotifySIdChangeL()
       
   142     {
       
   143     TInt count( iObservers.Count() );
       
   144     for ( TInt x ( 0 ) ; x < count ; ++x )
       
   145         {
       
   146         iObservers[ x ]->SIdHasChangedL( *iSId );
       
   147         }
       
   148     }
       
   149 
       
   150 
       
   151 // -----------------------------------------------------------------------------
       
   152 // CPEngSIdContainer::SIdPublished()
       
   153 // -----------------------------------------------------------------------------
       
   154 //
       
   155 TBool CPEngSIdContainer::SIdPublished() const
       
   156     {
       
   157     return iPublished;
       
   158     }
       
   159 
       
   160 
       
   161 // -----------------------------------------------------------------------------
       
   162 // CPEngSIdContainer::SetSIdPublished()
       
   163 // -----------------------------------------------------------------------------
       
   164 //
       
   165 void CPEngSIdContainer::SetSIdPublished()
       
   166     {
       
   167     iPublished = ETrue;
       
   168     }
       
   169 
       
   170 
       
   171 // -----------------------------------------------------------------------------
       
   172 // CPEngSIdContainer::ObserverCount()
       
   173 // -----------------------------------------------------------------------------
       
   174 //
       
   175 TInt CPEngSIdContainer::ObserverCount() const
       
   176     {
       
   177     return iObservers.Count();
       
   178     }
       
   179 
       
   180 
       
   181 // -----------------------------------------------------------------------------
       
   182 // CPEngSIdContainer::AllocateSlots()
       
   183 // -----------------------------------------------------------------------------
       
   184 //
       
   185 TInt CPEngSIdContainer::AllocateSlots(
       
   186     TInt aCount,
       
   187     TInt aDone )
       
   188     {
       
   189     TInt err ( iObservers.Append( NULL  ) );
       
   190 
       
   191     if ( err != KErrNone )
       
   192         {
       
   193         return err;
       
   194         }
       
   195     aDone++;
       
   196     if ( aCount < aDone )
       
   197         {
       
   198         err = AllocateSlots( aCount, aDone );
       
   199         }
       
   200     // remove last element from array = count minus 1
       
   201     iObservers.Remove( iObservers.Count() - 1 );
       
   202     return err;
       
   203     }
       
   204 
       
   205 //  End of File