1 /*

     2 * Copyright (c) 2007 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 * Version     : 2 << Don't touch! Updated by Synergy at check-out.

    16 *

    17 */

    18 

    19 #include "mmitemsdatacache.h"

    20 #include "mmcacheforitem.h"

    21 

    22 const TInt KItemCacheArrGranularity = 20;

    23 

    24 // -----------------------------------------------------------------------------

    25 //

    26 // -----------------------------------------------------------------------------

    27 //

    28 CMmItemsDataCache* CMmItemsDataCache::NewLC()

    29     {

    30     CMmItemsDataCache* self = new (ELeave) CMmItemsDataCache();

    31     CleanupStack::PushL( self );

    32     self->ConstructL();

    33     return self;

    34     }

    35 

    36 // -----------------------------------------------------------------------------

    37 //

    38 // -----------------------------------------------------------------------------

    39 //

    40 CMmItemsDataCache* CMmItemsDataCache::NewL()

    41     {

    42     CMmItemsDataCache* self = NewLC();

    43     CleanupStack::Pop( self );

    44     return self;

    45     }

    46 

    47 // -----------------------------------------------------------------------------

    48 //

    49 // -----------------------------------------------------------------------------

    50 //

    51 CMmCacheForItem* CMmItemsDataCache::GetItemCacheL( TInt aItemIndex )

    52     {

    53     ASSERT( aItemIndex >= 0 );

    54     while ( iItemCacheArr.Count() <= aItemIndex )

    55         {

    56         CMmCacheForItem* cacheForItem = CMmCacheForItem::NewLC( *this );

    57         iItemCacheArr.AppendL( cacheForItem );

    58         CleanupStack::Pop( cacheForItem );

    59         }

    60     return iItemCacheArr[aItemIndex];

    61     }

    62 

    63 // -----------------------------------------------------------------------------

    64 //

    65 // -----------------------------------------------------------------------------

    66 //

    67 TInt CMmItemsDataCache::GetTemplateIdentifierL( const TDesC8& aTemplateName )

    68     {

    69     TInt identifier = KErrNotFound;

    70     

    71     // this looks very primitive, but RPointerArray::FindL just compares pointers

    72     // so I guess there is no other way

    73     TInt templateCount = iTemplateNames.Count();

    74     for ( TInt i = 0; i < templateCount; ++i )

    75         {

    76         if ( iTemplateNames[i]->Compare( aTemplateName ) == 0 )

    77             {

    78             identifier = i;

    79             break;

    80             }

    81         }

    82     

    83     if ( identifier == KErrNotFound )

    84         {

    85         HBufC8* templateNameCopy = HBufC8::NewLC( aTemplateName.Length() );

    86         templateNameCopy->Des().Copy( aTemplateName );

    87         iTemplateNames.AppendL( templateNameCopy );

    88         CleanupStack::Pop( templateNameCopy );

    89         identifier = iTemplateNames.Count() - 1;

    90         }

    91     return identifier;

    92     }

    93 

    94 // -----------------------------------------------------------------------------

    95 //

    96 // -----------------------------------------------------------------------------

    97 //

    98 const TDesC8& CMmItemsDataCache::GetTemplateNameByIdentifier(

    99         TInt aTemplateIdentifier ) const

   100     {

   101     return *( iTemplateNames[aTemplateIdentifier] );

   102     }

   103 

   104 // -----------------------------------------------------------------------------

   105 //

   106 // -----------------------------------------------------------------------------

   107 //

   108 void CMmItemsDataCache::Invalidate()

   109     {

   110     const TInt count = iItemCacheArr.Count();

   111     for ( TInt i = 0; i < count; ++i )

   112         {

   113         iItemCacheArr[i]->SetValid( EFalse );

   114         }

   115     }

   116 

   117 // -----------------------------------------------------------------------------

   118 //

   119 // -----------------------------------------------------------------------------

   120 //

   121 void CMmItemsDataCache::Trim( TInt aItemCount )

   122     {

   123     __ASSERT_ALWAYS( aItemCount >= 0, User::Invariant() );

   124     for ( TInt i = iItemCacheArr.Count() - 1; i >= aItemCount; --i )

   125         {

   126         CMmCacheForItem* cache = iItemCacheArr[i];

   127         iItemCacheArr.Remove( i );

   128         delete cache;

   129         }

   130     }

   131 

   132 // -----------------------------------------------------------------------------

   133 //

   134 // -----------------------------------------------------------------------------

   135 //

   136 CMmItemsDataCache::~CMmItemsDataCache()

   137     {

   138     iItemCacheArr.ResetAndDestroy();

   139     iItemCacheArr.Close();

   140     iTemplateNames.ResetAndDestroy();

   141     iTemplateNames.Close();

   142     }

   143 

   144 // -----------------------------------------------------------------------------

   145 //

   146 // -----------------------------------------------------------------------------

   147 //

   148 CMmItemsDataCache::CMmItemsDataCache()

   149     : iItemCacheArr( KItemCacheArrGranularity )

   150     {

   151     }

   152 

   153 // -----------------------------------------------------------------------------

   154 //

   155 // -----------------------------------------------------------------------------

   156 //

   157 void CMmItemsDataCache::ConstructL()

   158     {

   159     }