photosgallery/viewframework/dataprovider/src/glxbindingset.cpp
changeset 0 4e91876724a2
child 18 bcb43dc84c44
equal deleted inserted replaced
-1:000000000000 0:4e91876724a2
       
     1 /*
       
     2 * Copyright (c) 2008-2009 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:    Implemention of bindings required to populate the visual item
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 #include "glxbindingset.h"     // holds the bindings required to populate the visual item
       
    22 #include <glxlog.h>            // Logging
       
    23 #include <glxtracer.h>
       
    24 // ----------------------------------------------------------------------------
       
    25 // NewLC
       
    26 // ----------------------------------------------------------------------------
       
    27 //
       
    28 CGlxBindingSet* CGlxBindingSet::NewLC( MGlxBindingObserver& aObserver )
       
    29     {
       
    30     TRACER("CGlxBindingSet::NewLC");
       
    31     CGlxBindingSet* set = new ( ELeave ) CGlxBindingSet( aObserver );
       
    32     CleanupStack::PushL( set );
       
    33     return set;
       
    34     }
       
    35 
       
    36 // ----------------------------------------------------------------------------
       
    37 // constructor
       
    38 // ----------------------------------------------------------------------------
       
    39 //
       
    40 CGlxBindingSet::CGlxBindingSet( MGlxBindingObserver& aObserver )
       
    41         : iObserver( aObserver )
       
    42     {
       
    43     }
       
    44     
       
    45 // ----------------------------------------------------------------------------
       
    46 // destructor
       
    47 // ----------------------------------------------------------------------------
       
    48 //
       
    49 CGlxBindingSet::~CGlxBindingSet() 
       
    50     {
       
    51     TRACER("CGlxBindingSet::~CGlxBindingSet");
       
    52     iBindings.ResetAndDestroy();
       
    53     }
       
    54 
       
    55 // ----------------------------------------------------------------------------
       
    56 // AddBindingL
       
    57 // ----------------------------------------------------------------------------
       
    58 //
       
    59 void CGlxBindingSet::AddBindingL( CGlxBinding* aBinding )
       
    60     {
       
    61     TRACER("CGlxBindingSet::AddBindingL");
       
    62     __ASSERT_DEBUG( aBinding, User::Invariant() ); // null binding not accepted
       
    63     iBindings.AppendL( aBinding );
       
    64     //CleanupStack ::Pop( aBinding );
       
    65     aBinding->SetObserver( *this );
       
    66     }
       
    67 
       
    68 // ----------------------------------------------------------------------------
       
    69 // PopulateT
       
    70 // ----------------------------------------------------------------------------
       
    71 //
       
    72 void CGlxBindingSet::PopulateT( Alf::MulVisualItem& aItem, 
       
    73         const TGlxMedia& aMedia, TBool aIsFocused ) const
       
    74     {
       
    75     TRACER("CGlxBindingSet::PopulateT");
       
    76     const TInt count = iBindings.Count();
       
    77     for ( TInt i = 0; i < count; i++ )
       
    78         {
       
    79         iBindings[i]->PopulateT( aItem, aMedia, aIsFocused );
       
    80         }
       
    81     }
       
    82 
       
    83 // ----------------------------------------------------------------------------
       
    84 // HasRelevantAttributes
       
    85 // ----------------------------------------------------------------------------
       
    86 //
       
    87 TBool CGlxBindingSet::HasRelevantAttributes( const RArray< TMPXAttribute >& 
       
    88     aAttributes ) const
       
    89     {
       
    90     TRACER("CGlxBindingSet::HasRelevantAttributes");
       
    91     TBool isRelevant = EFalse;
       
    92     TInt count = iBindings.Count();
       
    93     TInt i = -1;
       
    94     while( ++i < count && !isRelevant )
       
    95         {
       
    96         isRelevant = iBindings[i]->HasRelevantAttributes( aAttributes );
       
    97         }
       
    98     GLX_LOG_INFO1("HasRelevantAttributes::isRelevant %d", isRelevant);
       
    99     return isRelevant;
       
   100     }
       
   101 
       
   102 // ----------------------------------------------------------------------------
       
   103 // HandleFocusChanged
       
   104 // ----------------------------------------------------------------------------
       
   105 //	
       
   106 CGlxBinding::TResponse CGlxBindingSet::HandleFocusChanged( TBool aIsGained) 
       
   107     {
       
   108     TRACER("CGlxBindingSet::HandleFocusChanged");
       
   109     TResponse response = ENoUpdateNeeded;
       
   110     TInt count = iBindings.Count();
       
   111     TInt i = -1;
       
   112     while( ++i < count )
       
   113         {
       
   114         TResponse singleResponse = iBindings[i]->HandleFocusChanged( aIsGained );
       
   115         if ( ENoUpdateNeeded != singleResponse )
       
   116             {
       
   117             response = singleResponse;
       
   118             }
       
   119         }
       
   120     return response;
       
   121     }  
       
   122     
       
   123  // ----------------------------------------------------------------------------
       
   124 // HandleItemChanged
       
   125 // ----------------------------------------------------------------------------
       
   126 //   
       
   127 void CGlxBindingSet::HandleItemChangedL(const CMPXCollectionPath& aPath )
       
   128     {
       
   129     TRACER("CGlxBindingSet::HandleItemChangedL");
       
   130     TInt count = iBindings.Count();
       
   131     TInt i = -1;
       
   132     while( ++i < count )
       
   133         {
       
   134     
       
   135          iBindings[i]->HandleItemChangedL(aPath);
       
   136         }
       
   137     }
       
   138 // ----------------------------------------------------------------------------
       
   139 // HandleBindingChanged
       
   140 // ----------------------------------------------------------------------------
       
   141 //	
       
   142 void CGlxBindingSet::HandleBindingChanged( const CGlxBinding& /*aBinding*/ )
       
   143     {
       
   144     TRACER("CGlxBindingSet::HandleBindingChanged");
       
   145     iObserver.HandleBindingChanged( *this );
       
   146     }
       
   147 
       
   148 // ----------------------------------------------------------------------------
       
   149 // AddRequirementsL
       
   150 // ----------------------------------------------------------------------------
       
   151 //	
       
   152 void CGlxBindingSet::AddRequirementsL(  CGlxAttributeRequirements& 
       
   153     aAttributeRequirement,TSize aSize )
       
   154     {
       
   155     TRACER("CGlxBindingSet::AddRequirementsL");
       
   156     for(TInt i = 0; i < iBindings.Count(); i++ )
       
   157         {
       
   158         iBindings.operator[](i)->AddRequestL( aAttributeRequirement,aSize);
       
   159         }
       
   160     }
       
   161