phonebookui/Phonebook2/UIControls/src/CPbk2AdaptiveSearchGridFiller.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 14 Sep 2010 20:54:53 +0300
branchRCL_3
changeset 21 9da50d567e3c
parent 20 f4a778e096c2
permissions -rw-r--r--
Revision: 201033 Kit: 201035

/*
* Copyright (c) 2005-2007 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:  Phonebook2 contact editor dialog.
*
*/


// INCLUDE FILES
#include "CPbk2AdaptiveSearchGridFiller.h"
#include "MVPbkViewContact.h"
#include "MVPbkContactViewBase.h"
#include "MPbk2ContactNameFormatter.h"
#include "MPbk2FilteredViewStack.h"

#include <MVPbkBaseContactFieldCollection.h>
#include <MVPbkContactFieldTextData.h>
#include <MVPbkBaseContactField.h>


#include <MPbk2ContactViewSupplier.h>
#include <MPbk2ApplicationServices.h>
#include <MPbk2AppUi.h>
#include <CPbk2StoreConfiguration.h>
#include <MPbk2ContactNameFormatter2.h>
#include <FindUtil.h>
#include <badesca.h>
#include <featmgr.h>

#include <CPsRequestHandler.h>

const TInt KMaxAdaptiveGridCacheCount = 10;
const TInt KAdaptiveSearchKeyMapGranularity = 100;
const TInt KAdaptiveSearchRefineStep = 25;
const TInt KContactFormattingFlags = MPbk2ContactNameFormatter::EPreserveLeadingSpaces |
            MPbk2ContactNameFormatter::EReplaceNonGraphicChars |
            MPbk2ContactNameFormatter::EDisableCompanyNameSeparator;

namespace {
enum TNameOrder
    {
    ETopContactOrderNumber = 0,     //TC control data, not shown
    ENameFirstPart,                 //Contact name data
    ENameSecondPart,                //Contact name data
    ENameCompanyPart                //to support Company name
    };
} // namespace

NONSHARABLE_CLASS(CPbk2AdaptiveGrid) : public CBase
	{
	HBufC* iFindText;
	HBufC* iKeyMap;

	public:

		CPbk2AdaptiveGrid()
			{
			}

		~CPbk2AdaptiveGrid()
			{
			delete iFindText;
			delete iKeyMap;
			}

		void SetKeyMapL( const TDesC& aFindText, const TDesC& aKeyMap )
			{
			delete iFindText;
			delete iKeyMap;

			iFindText = iKeyMap = NULL;

			iFindText = aFindText.AllocL();
			iKeyMap = aKeyMap.AllocL();
			}

		const TDesC& GetFindText() const
			{
			return *iFindText;
			}

		const TDesC& GetKeyMap() const
			{
			return *iKeyMap;
			}
	};

// --------------------------------------------------------------------------
// CPbk2ContactEditorDlg::CPbk2ContactEditorDlg
// --------------------------------------------------------------------------
//
CPbk2AdaptiveSearchGridFiller::CPbk2AdaptiveSearchGridFiller( CAknSearchField& aField, MPbk2ContactNameFormatter& aNameFormatter )
	: CActive( CActive::EPriorityIdle ), iSearchField( aField ), iNameFormatter( aNameFormatter ),
	iInvalidateAdaptiveSearchGrid( EFalse ),iSetFocusToSearchGrid( ETrue )
    {
	CActiveScheduler::Add( this );
    }

// --------------------------------------------------------------------------
// CPbk2ContactEditorDlg::~CPbk2ContactEditorDlg
// --------------------------------------------------------------------------
//
CPbk2AdaptiveSearchGridFiller::~CPbk2AdaptiveSearchGridFiller()
    {
    Cancel();
    if ( iPsHandler )
        {
        iPsHandler->RemoveObserver( this );
        delete iPsHandler;
        }
	delete iKeyMap;
	delete iCurrentGrid;
	iAdaptiveGridCache.ResetAndDestroy();
	delete iSearchString;
	delete iFindUtil;
	iDigraphContactsTitleArray.ResetAndDestroy();

    if (iFeatureManagerInitialized)
        {
        // It can be safely called UnInitializeLib as it has been really intialized.
        FeatureManager::UnInitializeLib();  // Decreases ref.count
        }
    }


// --------------------------------------------------------------------------
// CPbk2ContactEditorDlg::NewL
// --------------------------------------------------------------------------
//
CPbk2AdaptiveSearchGridFiller* CPbk2AdaptiveSearchGridFiller::NewL(  CAknSearchField& aField, MPbk2ContactNameFormatter& aNameFormatter )
    {
    CPbk2AdaptiveSearchGridFiller* self =
        new(ELeave) CPbk2AdaptiveSearchGridFiller( aField, aNameFormatter );
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop(self);
    return self;
    }


// --------------------------------------------------------------------------
// CPbk2ContactEditorDlg::ConstructL
// --------------------------------------------------------------------------
//
void CPbk2AdaptiveSearchGridFiller::ConstructL()
    {
	iKeyMap = HBufC::NewL( KAdaptiveSearchKeyMapGranularity );
	iFindUtil = CFindUtil::NewL();

    // Initialize feature manager
    FeatureManager::InitializeLibL();
    iFeatureManagerInitialized = ETrue;
    // UI Language
	TLanguage uiLanguage = User::Language();
	if ( uiLanguage != ELangJapanese && uiLanguage != ELangPrcChinese && 
	        uiLanguage != ELangHongKongChinese && uiLanguage != ELangTaiwanChinese &&
	        uiLanguage != ELangKorean )
	    {  
        iPsHandler = CPSRequestHandler::NewL();
        iPsHandler->AddObserverL( this );
	    }
    }

void CPbk2AdaptiveSearchGridFiller::StartFillingL( const MVPbkContactViewBase& aView,
        const TDesC& aSearchString, TBool aClearCache )
	{
	
    if( aClearCache )
        {
        ClearCache();
        }
    
	if ( IsActive() && iView == &aView && iViewItemCount == aView.ContactCountL() 
	        && iSearchString && !iSearchString->Compare( aSearchString ) )
	    {
	    return;
	    }
	else
	    {
	    StopFilling();
	    }

    CPbk2AdaptiveGrid* keyMap = KeyMapFromCache( aSearchString );
    
    if( keyMap )
        {
        iSearchField.SetAdaptiveGridChars( keyMap->GetKeyMap() );
        return;
        }
    
	iViewItemCount = aView.ContactCountL();
	delete iSearchString;
	iSearchString = NULL;

	iSearchString = aSearchString.AllocL();

	// If there is no search word, the user is not searching any contacts
	// so we should reset the array to prepare for the next searching.
    if ( iSearchString->Length() == 0 )
    	{
    	iDigraphContactsTitleArray.ResetAndDestroy();
    	}
	iView = &aView;

	iKeyMap->Des().Zero();

	iCounter = 0;

	if ( iSearchString->Length() <= KPsAdaptiveGridSupportedMaxLen && GridFromPsEngineL( aView ) )
	    {
	    return;
	    }
	
	SetActive();
	TRequestStatus* status = &iStatus;
	User::RequestComplete( status, KErrNone );
	}

void CPbk2AdaptiveSearchGridFiller::StopFilling()
	{
	Cancel();
	iView = NULL;
	}

void CPbk2AdaptiveSearchGridFiller::RunL()
	{
	if( !iView )
		{
		return;
		}

	TInt stopCount = iCounter + KAdaptiveSearchRefineStep;
	const TInt itemCount = iView->ContactCountL();
    
	if( stopCount > itemCount )
		{
		stopCount = itemCount;
		}

	TInt maxSpacesNumber = 0;

    CDesC16Array* searchWordsArray = SplitSearchFieldTextIntoArrayLC( *iSearchString );
    TInt searchStringSpacesNumber = searchWordsArray->MdcaCount() - 1;
    
	for( ; iCounter < stopCount; iCounter++ )
		{
		const MVPbkViewContact& contact = iView->ContactAtL( iCounter );
		const TInt titleLength = iNameFormatter.MaxTitleLength( contact.Fields(), KContactFormattingFlags );
		HBufC* title = NULL;
		
		if( FeatureManager::FeatureSupported( KFeatureIdFfContactsCompanyNames ) )
            {
            MPbk2ContactNameFormatter2* nameformatterExtension =
                    reinterpret_cast<MPbk2ContactNameFormatter2*>( iNameFormatter.
                    ContactNameFormatterExtension( MPbk2ContactNameFormatterExtension2Uid ) );
            if ( nameformatterExtension && titleLength )
                {
                title = nameformatterExtension->GetContactTitleWithCompanyNameL( contact.Fields(),
                    KContactFormattingFlags );
                
                }
            }
        else if ( titleLength )
            {
            title = iNameFormatter.GetContactTitleL( contact.Fields(), KContactFormattingFlags );
            
            // In FDN, the number will be displayed in the list if the contact is no name.
            // If it is, set the search string as NULL.
            if ( IsActualTitleEmpty( contact ) )    
                {
                delete title;
                title = NULL;
            	}
            }
		
		if ( !title )
		    {
		    title = HBufC::NewL( titleLength );
		    }

        CleanupStack::PushL( title );
		BuildGridL( *title, searchWordsArray, iKeyMap );
		
		// check number of spaces in the contact title
		TInt numberOfSpaces = NumberOfSpacesInString( *title );
		if ( numberOfSpaces > maxSpacesNumber )
		    {
		    maxSpacesNumber = numberOfSpaces;
		    }
		// Check if the contact's title include drgraphs,
		// if it is, add it to array to save.
		if ( IsDigraphContactsTitleL( *title ) )
			{			
			iDigraphContactsTitleArray.AppendL( title );
			CleanupStack::Pop(); //title
			}
		else
			{
			CleanupStack::PopAndDestroy( title );
			}
		}
	// If there are titles in array, we should add them to build grids again,
	// because the contacts include drgraphs will be filtered 
	// when the application builds grids again.
    if ( iDigraphContactsTitleArray.Count()!= 0 )
    	{
    	for( TInt i(0); i < iDigraphContactsTitleArray.Count() ; i++ )
    		{
    		TPtr ptrContactsTitle = iDigraphContactsTitleArray[i]->Des();
        	BuildGridL( ptrContactsTitle, searchWordsArray, iKeyMap );
    		}
		}

    CleanupStack::PopAndDestroy( searchWordsArray ); //searchWordsArray

	if( stopCount == itemCount )
		{
		SetAdaptiveGridCharsL( maxSpacesNumber, searchStringSpacesNumber );
		AddKeyMapToCacheL( *iSearchString, *iKeyMap );
		}
	else
		{
		//else continue
		SetActive();
		TRequestStatus* status = &iStatus;
		User::RequestComplete( status, KErrNone );
		}
	}

void CPbk2AdaptiveSearchGridFiller::DoCancel()
	{
	iView = NULL;
	}

TInt CPbk2AdaptiveSearchGridFiller::RunError( TInt /*aError*/ )
	{
	//ignore errors, nothing critical has happened, lets forget it
	return KErrNone;
	}

CPbk2AdaptiveGrid* CPbk2AdaptiveSearchGridFiller::KeyMapFromCache( const TDesC& aFindText )
	{
	const TInt count = iAdaptiveGridCache.Count();

	for( TInt i( 0 ); i < count; i++ )
		{
		if( iAdaptiveGridCache[i] != NULL
		    && !aFindText.Compare( iAdaptiveGridCache[i]->GetFindText() ) )
			{
			return iAdaptiveGridCache[i];
			}
		}

	return NULL;
	}

void CPbk2AdaptiveSearchGridFiller::AddKeyMapToCacheL( const TDesC& aFindText, const TDesC& aKeyMap )
	{
    CPbk2AdaptiveGrid* keyMap = new( ELeave )CPbk2AdaptiveGrid;
    CleanupStack::PushL( keyMap );
    keyMap->SetKeyMapL( aFindText, aKeyMap );

    // Keep always in the cache at position 0 the grid cache element for empty find box,
    // which is the one that requires more time to be built
    if ( aFindText.Length() == 0 )
        {
        if ( iAdaptiveGridCache.Count() > 0 )
            {
            delete iAdaptiveGridCache[0];
            iAdaptiveGridCache.Remove( 0 );
            }

        iAdaptiveGridCache.InsertL( keyMap, 0 );
        }
    else
        {
        if ( iAdaptiveGridCache.Count() == 0 )
        {
        iAdaptiveGridCache.InsertL( NULL, 0 );
        }

        iAdaptiveGridCache.InsertL( keyMap, 1 );
    
        // Delete oldest cache element
        if( iAdaptiveGridCache.Count() > KMaxAdaptiveGridCacheCount )
            {
            delete iAdaptiveGridCache[KMaxAdaptiveGridCacheCount];
            iAdaptiveGridCache.Remove( KMaxAdaptiveGridCacheCount );
            }
        }

    CleanupStack::Pop(); //keyMap
	}

void CPbk2AdaptiveSearchGridFiller::ClearCache()
	{
	iAdaptiveGridCache.ResetAndDestroy();
	if ( iCurrentGrid )
	    {
        delete iCurrentGrid;
        iCurrentGrid = NULL;
	    }
	}

void CPbk2AdaptiveSearchGridFiller::InvalidateAdaptiveSearchGrid()
	{
	iInvalidateAdaptiveSearchGrid = ETrue;
	}

void CPbk2AdaptiveSearchGridFiller::SetFocusToAdaptiveSearchGrid()
    {
    iSetFocusToSearchGrid = ETrue;
    }

void CPbk2AdaptiveSearchGridFiller::SetAdaptiveGridCharsL(
        const TInt aMaxSpacesNumber, const TInt aSearchStringSpacesNumber )
    {
    // Add space character only if:
	// - user typed already some characters in the find pane,
	// - and more spaces can be found in contacts than in the current search string,
	// - and space is not the last character in the search string.
    TBool addSpace = ( iSearchString->Length() > 0 
                       && aMaxSpacesNumber > aSearchStringSpacesNumber
                       && (*iSearchString)[iSearchString->Length() - 1] != TChar( ' ' ) );

    SortGridL( addSpace ); 

	if( iCurrentGrid )
		{
		if( !iCurrentGrid->Des().Compare( *iKeyMap ) )
			{
			//same grid again
			if( !iInvalidateAdaptiveSearchGrid )
				{
				//if grid hasn't been invalidated, we do not need to set it again
				return;
				}
			}
		}

	delete iCurrentGrid;
	iCurrentGrid = NULL;
	iCurrentGrid = iKeyMap->Des().AllocL();

	iSearchField.SetAdaptiveGridChars( *iKeyMap );
    
    iInvalidateAdaptiveSearchGrid = EFalse;
    
	if ( iSetFocusToSearchGrid )
	    {
        // set the focus to findbox
	    iSearchField.DrawDeferred();
	    iSetFocusToSearchGrid = EFalse;
	    }

	}

void CPbk2AdaptiveSearchGridFiller::SortGridL( TBool aAddSpace )
    {
    TPtr ptr = iKeyMap->Des();

    // Do upper case for all characters
    ptr.UpperCase();
    CDesCArray* array = new (ELeave) CDesCArrayFlat( KAdaptiveSearchKeyMapGranularity );
    CleanupStack::PushL( array );
    TInt length = ptr.Length();

    for( TInt ii = 0; ii < length; ii++ )
        {
        array->AppendL( ptr.Mid( ii, 1 ) );
        }

    // Alphabetical sort
    array->Sort( ECmpCollated );
    ptr.Zero();

    if ( aAddSpace )
        {
        ptr.Append( TChar( ' ' ) );
        }
     
    for( TInt ii = 0; ii < length; ii++ )
        {
        ptr.Append( array->MdcaPoint( ii ) );
        }
    CleanupStack::PopAndDestroy();//array
    }

CDesC16Array* CPbk2AdaptiveSearchGridFiller::SplitContactFieldTextIntoArrayLC(
        const TDesC& aText )
    {
    // Attempt to minimize the allocations considering 3 words for the search fields:
    // FirstName, LastName, CompanyName.
    const TInt KGranularity = 2; // Attempt to minimize the allocations

    CDesCArrayFlat* array = new ( ELeave ) CDesCArrayFlat( KGranularity );
    CleanupStack::PushL( array );
    const TInt textLength = aText.Length();
    for ( TInt beg = 0; beg < textLength; beg++ )
        {
        // Skip separators before next word
        if ( iNameFormatter.IsFindSeparatorChar( aText[beg] ) )
            {
            continue;
            }
        
        // Scan till the end of the word
        TInt end;
        for ( end = beg + 1;
              end < textLength && !iNameFormatter.IsFindSeparatorChar( aText[end] );
              ++end )
            {
            }

        // Append found word to the array
        array->AppendL( aText.Mid( beg, end - beg) );

        // Scan for next word
        beg = end;
        }
    
    // consonent based adaptive search:
    if ( FeatureManager::FeatureSupported( KFeatureIdKorean ) )
       {
       /*
       When user has a contact with first name "??" and last name "?",
       It should be displayed with "? ??" in Korea variant.
       That means it should be found with search keyword, "?" or "??".
       Thus, need to put the "? ??" in the item list which is delivered to FindUtil.
       no need to care about just one word like "???"
       */       
       if ( array->MdcaCount() != 1 )
           {
           array->AppendL( aText );
           }
        }
	
    return array;
    }

CDesC16Array* CPbk2AdaptiveSearchGridFiller::SplitSearchFieldTextIntoArrayLC(
        const TDesC& aText )
    {
    CDesC16Array* searchWordsArray = SplitContactFieldTextIntoArrayLC( aText );

    // In searchWordsArray, the last word is the only one which generates new keymap characters
    // for the grid; the other words are used only for matching the contact words.
    //
    // KNullDesC fake word as last word in search string will match all contact words so that all
    // initials of contact words will be put into the grid.
    // We do this in case the search string is empty or the last character is a space separator.
    
    if( searchWordsArray->MdcaCount() == 0 ||
        ( aText.Length() > 0 && aText[aText.Length() - 1] == TChar(' ') ) )
        {
        searchWordsArray->AppendL( KNullDesC );
        }

    return searchWordsArray;
    }

void CPbk2AdaptiveSearchGridFiller::BuildGridL( const TDesC& aContactString, const CDesC16Array* aSearchWords, HBufC*& aKeyMap )
	{
    CDesC16Array* contactWords = SplitContactFieldTextIntoArrayLC( aContactString );
	
    const TInt contactWordCount = contactWords->MdcaCount();
	const TInt searchWordCount = aSearchWords->MdcaCount();

    TPtrC searchWord;
    TPtrC contactWord;

    // Try to make as fast algorithm as possible if there is only one search word,
    // which is the most common case    
    if ( searchWordCount == 1 )
        {
        searchWord.Set( aSearchWords->MdcaPoint( 0 ) ); // Search word

        for( TInt j = 0; j < contactWordCount; j++ )
            {
            contactWord.Set( contactWords->MdcaPoint( j ) );
    
            iFindUtil->Interface()->MatchAdaptiveRefineL( contactWord, searchWord, aKeyMap );
            }
        }
    
    // The clients of this method will provide at least one search word, so 0 is unexpected
    else if ( searchWordCount > 1 )
        {
        RArray<TBool> contactWordsMatchedArray;
        contactWordsMatchedArray.ReserveL( contactWordCount );
        for ( TInt i = 0; i < contactWordCount; ++i )
            {
            contactWordsMatchedArray.AppendL( EFalse );
            }

        TBool matched = ETrue;

        // Scan search words except for the last one
        for ( TInt i = 0; matched && i < searchWordCount - 1; i++ )
            {
            searchWord.Set( aSearchWords->MdcaPoint( i ) );

            matched = EFalse; // Search word not matched yet
            
            // Check if the search word is matched in the contact
            for( TInt j = 0; !matched && j < contactWordCount; j++ )
                {
                contactWord.Set( contactWords->MdcaPoint( j ) );
    
                // Partially or fully matched
                if ( iFindUtil->Interface()->MatchRefineL( contactWord, searchWord ) )
                    {
                    // Allow one search word to match only one contact word.
                    // This could be done better if both search and grid creation would
                    // work in the same way for contacts matching...
                    // Example: Contact: "Dim Din Dit"
                    //          Search:  "DIN DI"
                    //          - DIN is matched fully
                    //          - DI is matched partially and assigned to "Dim"
                    //          - The grid will show "_T" instead of "_MT"
                    contactWordsMatchedArray[j] = ETrue;    
                    matched = ETrue;
                    }
                }
            }

        // If all search words before the last one matched (fully or partially),
        // add characters to the grid using last search word.
        if ( matched )
            {
            searchWord.Set( aSearchWords->MdcaPoint( searchWordCount - 1 ) ); // Last search word
    
            for( TInt j = 0; j < contactWordCount; j++ )
                {
                // skip Contact words matched by previous search words
                if (contactWordsMatchedArray[j])
                    {
                    continue;
                    }
    
                contactWord.Set( contactWords->MdcaPoint( j ) );
    
                iFindUtil->Interface()->MatchAdaptiveRefineL( contactWord, searchWord, aKeyMap );
                }
            }
    
        contactWordsMatchedArray.Close();
        }
        
	CleanupStack::PopAndDestroy( contactWords );
	}

TInt CPbk2AdaptiveSearchGridFiller::NumberOfSpacesInString(
    const TDesC& aSearchString )
    {
    TInt numberOfSpaces = 0;
	TInt searchResult = 0;
	TPtrC ptr = aSearchString;
	while ( searchResult != KErrNotFound )
	    {
		searchResult = ptr.Locate( TChar( ' ' ) );
		if ( searchResult != KErrNotFound )
		    {
		    numberOfSpaces++;
		    ptr.Set( ptr.Right( ptr.Length() - searchResult - 1 ) );
		    }
		}
    return numberOfSpaces;
    }

TBool CPbk2AdaptiveSearchGridFiller::IsDigraphContactsTitleL(const TDesC& aContactTitle)
	{
	TBool isDigraphic( EFalse );
	// Go through the contactTitles one-by-one and check if they
	// include digraphs
	const TInt KDigraphLength(2);
	if ( aContactTitle.Length()>= KDigraphLength )
		{
		TPtrC substring = aContactTitle.Left(1);
		if( !iFindUtil->Interface()->MatchRefineL( aContactTitle, substring ) )
			{
			// The substring did not match the characters of the contactTitles
			// For example with Croatian locale the contactTitles "nj" does
			// not include the substring "n" because "nj" is a digraph
			isDigraphic = ETrue;
			}
		}
	return isDigraphic;
	}

void CPbk2AdaptiveSearchGridFiller::HandlePsResultsUpdate(
        RPointerArray<CPsClientData>& /*searchResults*/,
        RPointerArray<CPsPattern>& /*searchSeqs*/ )
    {
    
    }

void CPbk2AdaptiveSearchGridFiller::HandlePsError( TInt /*aErrorCode*/ )
    {
    
    }

void CPbk2AdaptiveSearchGridFiller::CachingStatus( TCachingStatus& aStatus, TInt& /*aError*/ )
    {
    TRAP_IGNORE(
    MVPbkContactViewBase* allContactsView = Phonebook2::Pbk2AppUi()->ApplicationServices().ViewSupplier().AllContactsViewL();
    
    const MPbk2FilteredViewStack* filteredView = dynamic_cast<const MPbk2FilteredViewStack*> ( iView );
    
    if ( aStatus >= ECachingComplete && filteredView && filteredView->Level() == 0 && &filteredView->BaseView() == allContactsView )
        {
        HBufC* string = iSearchString->AllocL();
        CleanupStack::PushL( string );
        StartFillingL( *iView, *string, ETrue );
        CleanupStack::PopAndDestroy( string  );
        }
        );
    }

TBool CPbk2AdaptiveSearchGridFiller::GridFromPsEngineL( const MVPbkContactViewBase& aView )
    {
    if ( iPsHandler == NULL )
        {
        return EFalse;
        }
    MPbk2ApplicationServices& appServices = Phonebook2::Pbk2AppUi()->ApplicationServices();
    MVPbkContactViewBase* allContactsView = appServices.ViewSupplier().AllContactsViewL();
    const MPbk2FilteredViewStack* filteredView = dynamic_cast<const MPbk2FilteredViewStack*> ( &aView );
        
    if ( filteredView && filteredView->Level() == 0 && &filteredView->BaseView() == allContactsView )
        {
        CPbk2StoreConfiguration& config = appServices.StoreConfiguration();
        CVPbkContactStoreUriArray* stores = NULL;
        stores = config.CurrentConfigurationL();
        if ( !stores || stores->Count() == 0 )
            {
            delete stores;
            return EFalse;
            }
        
        TInt count = stores->Count();
        CleanupStack::PushL(stores);
        
        CDesCArrayFlat* array = new ( ELeave ) CDesCArrayFlat( count );
        CleanupStack::PushL( array );
        
        for ( TInt i = 0; i < count; ++i)
            {
            TVPbkContactStoreUriPtr uriPtr = stores->operator[](i);
            array->AppendL( uriPtr.UriDes() );
            }

        TBool companyName = EFalse;
        TBuf<KPsAdaptiveGridStringMaxLen> gridChars;
        if( FeatureManager::FeatureSupported( KFeatureIdFfContactsCompanyNames ) )
            {
            companyName = ETrue;
            }
        iPsHandler->GetAdaptiveGridCharactersL( *array, *iSearchString, companyName, gridChars );
        
        CleanupStack::PopAndDestroy( array );
        CleanupStack::PopAndDestroy( stores );
        
        if ( !gridChars.Length() && iViewItemCount > 0 )
            {
            // grid should be created on standard way
            return EFalse;
            }
        if ( iKeyMap->Des().MaxLength() < gridChars.Length() )
            {
            iKeyMap = iKeyMap->ReAllocL( gridChars.Length() );
            }
        iKeyMap->Des().Copy( gridChars );
        // Sort the grid, space is not needed
        SortGridL( EFalse );
        
        delete iCurrentGrid;
        iCurrentGrid = NULL;
        iCurrentGrid = iKeyMap->Des().AllocL();

        iSearchField.SetAdaptiveGridChars( *iKeyMap );
        
        iInvalidateAdaptiveSearchGrid = EFalse;
        
        if ( iSetFocusToSearchGrid )
            {
            // set the focus to findbox
            iSearchField.DrawDeferred();
            iSetFocusToSearchGrid = EFalse;
            }
        AddKeyMapToCacheL( *iSearchString, *iKeyMap );
        return ETrue;
        }
    else
        {
        return EFalse;
        }
    }

TBool CPbk2AdaptiveSearchGridFiller::IsActualTitleEmpty( const MVPbkViewContact& aContact )
    {
    TBool result = ETrue;
    const TInt fieldCount = aContact.Fields().FieldCount();
    if ( fieldCount > ENameCompanyPart )
        {
        const MVPbkBaseContactField& field = aContact.Fields().FieldAt( ENameCompanyPart );
        if ( iNameFormatter.IsTitleField( field ) )
            {
            return EFalse;
            }
        }
   
    if ( fieldCount > ENameFirstPart ) 
        {
        const MVPbkBaseContactField& field = aContact.Fields().FieldAt( ENameFirstPart );
        if ( iNameFormatter.IsTitleField( field ) )
            {
            const MVPbkContactFieldData& fieldData = field.FieldData();
            if ( fieldData.DataType() == EVPbkFieldStorageTypeText )
                {
                const TDesC& fieldText = MVPbkContactFieldTextData::Cast( fieldData ).Text();
                TInt length = fieldText.Length();
                    
                if ( length > 0 )
                    {
                    TInt firstNonSpaceChar = 0;
                    while ( firstNonSpaceChar < length 
                        && TChar( fieldText[firstNonSpaceChar] ).IsSpace() )
                        {
                        ++firstNonSpaceChar;
                        }
                    if ( firstNonSpaceChar != length )
                        {
                        result = EFalse;
                        }
                    }   
                }
            }
        }
    return result;
    }
// End of File