menufw/hierarchynavigator/hnmetadatamodel/src/hnmdmenuitem.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 13 Oct 2010 14:18:30 +0300
branchRCL_3
changeset 102 ba63c83f4716
parent 83 5456b4e8b3a8
permissions -rw-r--r--
Revision: 201039 Kit: 201041
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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  
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*
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*/
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#include "hnmdmenuitem.h"
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#include "hnglobals.h"
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#include "hnconvutils.h"
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#include "hnstringhandler.h"
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#include "hnconditioninterface.h"
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#include "hnmdeventmappingelement.h"
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#include "hnmdevent.h"
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#include "hnmenuitemmodel.h"
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#include "hnconditionfactory.h"
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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TBool CHnMdMenuItem::IsMenuItemElementName( const TDesC8& aNameToCompare )    
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    {
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    return !aNameToCompare.Compare( KMenuItemElementName8 )
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        || !aNameToCompare.Compare( KMenuItemSpecificElementName8 )
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        || !aNameToCompare.Compare( KMenuItemActionElementName8 );
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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void CHnMdMenuItem::AppendChildItemL( CHnMdMenuItem* aMenuItem )
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    {
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    iChildren.AppendL( aMenuItem );
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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void CHnMdMenuItem::EvaluateL( CHnMenuItemModel* aMenuModel,
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        const CLiwGenericParamList& aQueriesResultsList, TInt aPos )
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    {
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    for ( TInt i( 0 ); i < iChildren.Count(); i++ )
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      {
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      CHnMdMenuItem* mdMenu = iChildren[ i ];
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      if ( mdMenu->IsValidL( aQueriesResultsList, aPos ) )
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          {
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          CHnMenuItemModel* menu = CHnMenuItemModel::NewL( mdMenu->NameL() );
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          mdMenu->EvaluateL( menu, aQueriesResultsList, aPos );
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          aMenuModel->AppendChildMenuL( menu );
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          }
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      }
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    aMenuModel->SetCommand( iEvent );
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    aMenuModel->SetPosition( iPosition );
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    aMenuModel->SetMenuItemType( iType );
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    }
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// ---------------------------------------------------------------------------
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// ConstructL takes as an argument an item xml element. It iterates through 
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// item elements in order to find menuitems.
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// ---------------------------------------------------------------------------
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//
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void CHnMdMenuItem::CreatePropertiesL( TXmlEngElement aElement,
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                                 THnMdCommonPointers* /* aCmnPtrs */ )
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    {
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    iType = CHnMenuItemModel::EItemApplication;
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    if ( !aElement.Name().Compare( KMenuItemSpecificElementName8 ) )
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    	{
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    	iType = CHnMenuItemModel::EItemSpecific;
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    	}
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    else if ( !aElement.Name().Compare( KMenuItemActionElementName8 ) )
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    	{
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    	iType = CHnMenuItemModel::EItemAction;
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    	}
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    // name
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    HBufC* name = HnConvUtils::Str8ToStrLC(
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            aElement.AttributeValueL( KName8 ) );
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    iName.Assign(name);
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    CleanupStack::Pop( name );
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    // position
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    TPtrC8 pos = aElement.AttributeValueL( KPositionAttrName8 );
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    TLex8 lexPosition ( pos );
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    User::LeaveIfError( lexPosition.Val( iPosition ) );
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    // event
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    if( aElement.AttributeValueL( KEventAttrName8 ).Length() && 
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                                            !aElement.HasChildNodes() )
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        { // there might not be the event attribute - submenues
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        TPtrC8 event = aElement.AttributeValueL( KEventAttrName8 );
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        TLex8 lex( event );
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        User::LeaveIfError( lex.Val( iEvent ) );
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        }
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    // condition
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    if( aElement.AttributeValueL( KMenuConditionAttrName8 ).Length() )
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        {
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        iCondition = HnConditionFactory::NewL(  
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          aElement.AttributeNodeL( KMenuConditionAttrName8 ) );
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        }
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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void CHnMdMenuItem::CreateChildrenL( TXmlEngElement aElement,
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                                        THnMdCommonPointers* aCmnPtrs )
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    { 
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    RXmlEngNodeList< TXmlEngElement > children;
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    CleanupClosePushL( children );
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    aElement.GetChildElements( children );
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    TInt count = children.Count();
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    for ( TInt i = 0; i < count; i++ )
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        {
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        TXmlEngElement child = children.Next();
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        if ( IsMenuItemElementName( child.Name() ) )
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            {
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            AppendChildItemL( CHnMdMenuItem::NewL( child, aCmnPtrs ) );
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            }
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        }
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    CleanupStack::PopAndDestroy( &children );
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    }
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// ---------------------------------------------------------------------------
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// ConstructL takes as an argument an item xml element. It iterates through 
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// item elements in order to find menuitems.
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// ---------------------------------------------------------------------------
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//
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void CHnMdMenuItem::ConstructL( TXmlEngElement aElement,
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                                THnMdCommonPointers* aCmnPtrs )
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    {
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    if ( IsMenuItemElementName( aElement.Name() ) )
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        { // this is an ordinary menu item
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        CreatePropertiesL( aElement, aCmnPtrs );
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        CreateChildrenL( aElement, aCmnPtrs ); // in case there are subitems
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        }
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    else
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        { // this is the root level
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        CreateChildrenL( aElement, aCmnPtrs );
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        }
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CHnMdMenuItem* CHnMdMenuItem::NewL( TXmlEngElement aElement,
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        THnMdCommonPointers* aCmnPtrs )
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    {
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    CHnMdMenuItem* self = CHnMdMenuItem::NewLC( aElement, aCmnPtrs );
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CHnMdMenuItem* CHnMdMenuItem::NewLC( TXmlEngElement aElement, 
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        THnMdCommonPointers* aCmnPtrs )
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    {
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    CHnMdMenuItem* self = new( ELeave ) CHnMdMenuItem;
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    CleanupStack::PushL( self );
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    self->ConstructL( aElement, aCmnPtrs );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CHnMdMenuItem::CHnMdMenuItem()
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    {
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CHnMdMenuItem::~CHnMdMenuItem()
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    {
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    iName.Close();
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    iChildren.ResetAndDestroy();
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    iNameValueCache.Close();
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    delete iCondition;
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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const TDesC& CHnMdMenuItem::NameL() 
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    {
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    iNameValueCache.Close();
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    HnStringHandler::LocaliseL( iNameValueCache, iName, NULL /*common params*/);
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    return iNameValueCache;
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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TBool CHnMdMenuItem::IsValidL( const CLiwGenericParamList& aQueryResults, 
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        TInt aPos )    
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    {
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    TBool ret( EFalse );
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    if( !iCondition || iCondition->ResultL( aQueryResults, aPos ) )
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        {
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        ret = ETrue;
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        }
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    return ret;
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    }
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