phonebookengines/VirtualPhonebook/VPbkCntModel/src/CFindViewBase.cpp
branchRCL_3
changeset 63 f4a778e096c2
child 64 c1e8ba0c2b16
equal deleted inserted replaced
62:5b6f26637ad3 63:f4a778e096c2
       
     1 /*
       
     2 * Copyright (c) 2002-2007 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:  Contacts Model store filtered contact view implementation.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDES
       
    20 #include "CFindViewBase.h"
       
    21 
       
    22 // VPbkCntModel
       
    23 #include "CContactStore.h"
       
    24 #include "CRefineView.h"
       
    25 #include "CViewBase.h"
       
    26 #include "CContactLink.h"
       
    27 #include "CContactBookmark.h"
       
    28 
       
    29 // VPbkEng
       
    30 #include <CVPbkFieldTypeRefsList.h>
       
    31 #include <CVPbkContactFieldIterator.h>
       
    32 #include <VPbkError.h>
       
    33 #include <CVPbkAsyncCallback.h>
       
    34 #include <MVPbkContactNameConstructionPolicy.h>
       
    35 #include <MVPbkContactFindPolicy.h>
       
    36 #include <VPbkSendEventUtility.h>
       
    37 
       
    38 // System includes
       
    39 #include <cntviewbase.h>
       
    40 
       
    41 namespace{
       
    42     #ifdef _DEBUG
       
    43         enum TPanic
       
    44             {
       
    45             EPreCond_SetFindStringsL = 1
       
    46             };
       
    47 
       
    48         void Panic(TPanic aPanic)
       
    49             {
       
    50             _LIT(KPanicCat, "CFindViewBase");
       
    51             User::Panic(KPanicCat, aPanic);
       
    52             }
       
    53     #endif // _DEBUG
       
    54 } //namespace
       
    55 
       
    56 namespace VPbkCntModel {
       
    57 
       
    58 // CONSTANTS
       
    59 const TInt KGranularity( 4 );
       
    60 
       
    61 // --------------------------------------------------------------------------
       
    62 // CCompareView::CCompareView
       
    63 // --------------------------------------------------------------------------
       
    64 //
       
    65 CCompareView::CCompareView( const CContactDatabase& aDb ) :
       
    66         CContactViewBase( aDb )
       
    67     {
       
    68     }
       
    69 
       
    70 // --------------------------------------------------------------------------
       
    71 // CCompareView::CompareFieldsL
       
    72 // --------------------------------------------------------------------------
       
    73 //
       
    74 TInt CCompareView::CompareFieldsL( const ::CViewContact &aFirst,
       
    75             const ::CViewContact &aSecond )
       
    76     {
       
    77     return CContactViewBase::CompareFieldsL( aFirst, aSecond );
       
    78     }
       
    79 
       
    80 // --------------------------------------------------------------------------
       
    81 // CFindViewBase::CFindViewBase
       
    82 // --------------------------------------------------------------------------
       
    83 //
       
    84 CFindViewBase::CFindViewBase(
       
    85         MParentViewForFiltering& aParentView,
       
    86         CViewBase& aBaseView,
       
    87         TBool aOwnsContacts ) :
       
    88             iParentView( aParentView ),
       
    89             iBaseView( aBaseView ),
       
    90             iOwnsContacts( aOwnsContacts ),
       
    91             iDestroyed( NULL )
       
    92     {
       
    93     }
       
    94 
       
    95 // --------------------------------------------------------------------------
       
    96 // CFindViewBase::BaseConstructL
       
    97 // --------------------------------------------------------------------------
       
    98 //
       
    99 void CFindViewBase::BaseConstructL( const MDesCArray& aFindStrings,
       
   100         MVPbkContactFindPolicy& aFindPolicy,
       
   101         MVPbkContactViewObserver& aExternalViewObserver )
       
   102     {
       
   103     iObserverOp =
       
   104         CVPbkAsyncObjectOperation<MVPbkContactViewObserver>::NewL();
       
   105     iFilterObsOp =
       
   106         CVPbkAsyncObjectOperation<MFilteredViewSupportObserver>::NewL();
       
   107 
       
   108     iFindStrings = new(ELeave)CDesCArrayFlat( KGranularity );
       
   109     SetFindStringsL( aFindStrings );
       
   110 
       
   111     // Set contact find policy
       
   112     iContactFindPolicy = &aFindPolicy;
       
   113 
       
   114     // Add the external observer
       
   115     iObservers.AppendL( &aExternalViewObserver );
       
   116 
       
   117     //Create field type list
       
   118     iFieldTypeRefsList = CVPbkFieldTypeRefsList::NewL();
       
   119 
       
   120     iViewContact = CViewContact::NewL( iBaseView, SortOrder() );
       
   121     }
       
   122 
       
   123 // --------------------------------------------------------------------------
       
   124 // CFindViewBase::~CFindViewBase
       
   125 // --------------------------------------------------------------------------
       
   126 //
       
   127 CFindViewBase::~CFindViewBase()
       
   128     {
       
   129     delete iObserverOp;
       
   130     delete iFilterObsOp;
       
   131     ResetContacts();
       
   132     iMatchedContacts.Close();
       
   133     iParentView.RemoveFilteringObserver( *this );
       
   134     iObservers.Close();
       
   135     iFilteringObservers.Close();
       
   136 
       
   137     delete iViewContact;
       
   138     delete iFieldTypeRefsList;
       
   139     delete iFindStrings;
       
   140     if ( iDestroyed )
       
   141         {
       
   142         *iDestroyed = ETrue;
       
   143         }
       
   144     }
       
   145 
       
   146 // --------------------------------------------------------------------------
       
   147 // CFindViewBase::ActivateContactMatchL
       
   148 // --------------------------------------------------------------------------
       
   149 //
       
   150 void CFindViewBase::ActivateContactMatchL()
       
   151     {
       
   152     // Remove first if this called second time when updating.
       
   153     iParentView.RemoveFilteringObserver( *this );
       
   154     // This will cause an asynchrnous view event to this view from the
       
   155     // parent view.
       
   156     iParentView.AddFilteringObserverL( *this );
       
   157     }
       
   158 
       
   159 // --------------------------------------------------------------------------
       
   160 // CFindViewBase::ParentObject
       
   161 // --------------------------------------------------------------------------
       
   162 //
       
   163 MVPbkObjectHierarchy& CFindViewBase::ParentObject() const
       
   164     {
       
   165     return iParentView.ParentObject();
       
   166     }
       
   167 
       
   168 // --------------------------------------------------------------------------
       
   169 // CFindViewBase::RefreshL
       
   170 // --------------------------------------------------------------------------
       
   171 //
       
   172 void CFindViewBase::RefreshL()
       
   173     {
       
   174     iParentView.RefreshL();
       
   175     }
       
   176 
       
   177 // --------------------------------------------------------------------------
       
   178 // CFindViewBase::ContactCountL
       
   179 // --------------------------------------------------------------------------
       
   180 //
       
   181 TInt CFindViewBase::ContactCountL() const
       
   182     {
       
   183     return iMatchedContacts.Count();
       
   184     }
       
   185 
       
   186 // --------------------------------------------------------------------------
       
   187 // CFindViewBase::ContactAtL
       
   188 // --------------------------------------------------------------------------
       
   189 //
       
   190 const MVPbkViewContact& CFindViewBase::ContactAtL(
       
   191         TInt aIndex ) const
       
   192     {
       
   193     __ASSERT_ALWAYS( aIndex >= 0,
       
   194         VPbkError::Panic( VPbkError::EInvalidContactIndex ) );
       
   195 
       
   196     if ( aIndex >= ContactCountL() )
       
   197         {
       
   198         User::Leave( KErrArgument );
       
   199         }
       
   200 
       
   201     const ::CViewContact& viewContact = *iMatchedContacts[ aIndex ];
       
   202     iViewContact->SetViewContact(viewContact);
       
   203     return *iViewContact;
       
   204     }
       
   205 
       
   206 // --------------------------------------------------------------------------
       
   207 // CFindViewBase::CreateLinkLC
       
   208 // --------------------------------------------------------------------------
       
   209 //
       
   210 MVPbkContactLink* CFindViewBase::CreateLinkLC(
       
   211         TInt aIndex ) const
       
   212     {
       
   213     __ASSERT_ALWAYS( aIndex >= 0,
       
   214         VPbkError::Panic( VPbkError::EInvalidContactIndex ) );
       
   215 
       
   216     if ( aIndex >= ContactCountL() )
       
   217         {
       
   218         User::Leave( KErrArgument );
       
   219         }
       
   220 
       
   221     TContactItemId contactId = iMatchedContacts[aIndex]->Id();
       
   222     return CContactLink::NewLC( iBaseView.Store(), contactId );
       
   223     }
       
   224 
       
   225 // --------------------------------------------------------------------------
       
   226 // CFindViewBase::IndexOfLinkL
       
   227 // --------------------------------------------------------------------------
       
   228 //
       
   229 TInt CFindViewBase::IndexOfLinkL(
       
   230         const MVPbkContactLink& aContactLink ) const
       
   231     {
       
   232     if (&aContactLink.ContactStore() == &iParentView.ContactStore())
       
   233         {
       
   234         const CContactLink& link =
       
   235             static_cast<const CContactLink&>(aContactLink);
       
   236         const TInt count( iMatchedContacts.Count() );
       
   237         for ( TInt i(0); i < count; ++i )
       
   238             {
       
   239             if ( iMatchedContacts[ i ]->Id() == link.ContactId() )
       
   240                 {
       
   241                 return i;
       
   242                 }
       
   243             }
       
   244         }
       
   245 
       
   246     return KErrNotFound;
       
   247     }
       
   248 
       
   249 // --------------------------------------------------------------------------
       
   250 // CFindViewBase::Type
       
   251 // --------------------------------------------------------------------------
       
   252 //
       
   253 TVPbkContactViewType CFindViewBase::Type() const
       
   254     {
       
   255     return iParentView.Type();
       
   256     }
       
   257 
       
   258 // --------------------------------------------------------------------------
       
   259 // CFindViewBase::ChangeSortOrderL
       
   260 // --------------------------------------------------------------------------
       
   261 //
       
   262 void CFindViewBase::ChangeSortOrderL(const MVPbkFieldTypeList& aSortOrder)
       
   263     {
       
   264     iParentView.ChangeSortOrderL( aSortOrder );
       
   265     }
       
   266 
       
   267 // --------------------------------------------------------------------------
       
   268 // CFindViewBase::SortOrder
       
   269 // --------------------------------------------------------------------------
       
   270 //
       
   271 const MVPbkFieldTypeList& CFindViewBase::SortOrder() const
       
   272     {
       
   273     return iParentView.SortOrder();
       
   274     }
       
   275 
       
   276 // --------------------------------------------------------------------------
       
   277 // CFindViewBase::AddObserverL
       
   278 // --------------------------------------------------------------------------
       
   279 //
       
   280 void CFindViewBase::AddObserverL( MVPbkContactViewObserver& aObserver )
       
   281     {
       
   282     CVPbkAsyncObjectCallback<MVPbkContactViewObserver>* callback =
       
   283         VPbkEngUtils::CreateAsyncObjectCallbackLC(
       
   284             *this,
       
   285             &CFindViewBase::DoAddObserver,
       
   286             &CFindViewBase::DoAddObserverError,
       
   287             aObserver);
       
   288     iObserverOp->CallbackL( callback );
       
   289     CleanupStack::Pop( callback );
       
   290 
       
   291     // Insert to first position because events are send in reverse order.
       
   292     iObservers.InsertL( &aObserver, 0 );
       
   293     }
       
   294 
       
   295 // --------------------------------------------------------------------------
       
   296 // CFindViewBase::RemoveObserver
       
   297 // --------------------------------------------------------------------------
       
   298 //
       
   299 void CFindViewBase::RemoveObserver(MVPbkContactViewObserver& aObserver)
       
   300     {
       
   301     const TInt index = iObservers.Find( &aObserver );
       
   302     if ( index != KErrNotFound )
       
   303         {
       
   304         iObservers.Remove( index );
       
   305         }
       
   306     }
       
   307 
       
   308 // --------------------------------------------------------------------------
       
   309 // CFindViewBase::MatchContactStore
       
   310 // --------------------------------------------------------------------------
       
   311 //
       
   312 TBool CFindViewBase::MatchContactStore(const TDesC& aContactStoreUri) const
       
   313     {
       
   314     return iParentView.MatchContactStore( aContactStoreUri );
       
   315     }
       
   316 
       
   317 // --------------------------------------------------------------------------
       
   318 // CFindViewBase::MatchContactStoreDomain
       
   319 // --------------------------------------------------------------------------
       
   320 //
       
   321 TBool CFindViewBase::MatchContactStoreDomain(const TDesC& aContactStoreDomain) const
       
   322     {
       
   323     return iParentView.MatchContactStoreDomain( aContactStoreDomain );
       
   324     }
       
   325 
       
   326 // --------------------------------------------------------------------------
       
   327 // CFindViewBase::CreateBookmarkLC
       
   328 // --------------------------------------------------------------------------
       
   329 //
       
   330 MVPbkContactBookmark* CFindViewBase::CreateBookmarkLC(
       
   331         TInt aIndex ) const
       
   332     {
       
   333     __ASSERT_ALWAYS( aIndex >= 0,
       
   334         VPbkError::Panic( VPbkError::EInvalidContactIndex ) );
       
   335 
       
   336     TContactItemId contactId = iMatchedContacts[aIndex]->Id();
       
   337     // Link implements also the bookmark interface in this store
       
   338     return CContactBookmark::NewLC( contactId, iBaseView.Store() );
       
   339     }
       
   340 
       
   341 // --------------------------------------------------------------------------
       
   342 // CFindViewBase::IndexOfBookmarkL
       
   343 // --------------------------------------------------------------------------
       
   344 //
       
   345 TInt CFindViewBase::IndexOfBookmarkL(
       
   346         const MVPbkContactBookmark& aContactBookmark ) const
       
   347     {
       
   348     // Bookmark is implemented in this store
       
   349     const CContactBookmark* bookmark =
       
   350         dynamic_cast<const CContactBookmark*>(&aContactBookmark);
       
   351     if (bookmark &&
       
   352         &bookmark->ContactStore() == &iParentView.ContactStore() )
       
   353         {
       
   354         const TInt count( iMatchedContacts.Count() );
       
   355         for ( TInt i(0); i < count; ++i )
       
   356             {
       
   357             if ( iMatchedContacts[ i ]->Id() == bookmark->ContactId() )
       
   358                 {
       
   359                 return i;
       
   360                 }
       
   361             }
       
   362         }
       
   363     return KErrNotFound;
       
   364     }
       
   365 
       
   366 // --------------------------------------------------------------------------
       
   367 // CFindViewBase::AddFilteringObserverL
       
   368 // --------------------------------------------------------------------------
       
   369 //
       
   370 void CFindViewBase::AddFilteringObserverL(
       
   371         MFilteredViewSupportObserver& aObserver )
       
   372     {
       
   373     // Insert observer in callback function. That ensures that the observer
       
   374     // will always get the event asynchronously.
       
   375 
       
   376     CVPbkAsyncObjectCallback<MFilteredViewSupportObserver>* callback =
       
   377         VPbkEngUtils::CreateAsyncObjectCallbackLC(
       
   378             *this,
       
   379             &CFindViewBase::DoAddFilteringObserverL,
       
   380             &CFindViewBase::DoAddFilteringObserverError,
       
   381             aObserver);
       
   382 
       
   383     iFilterObsOp->CallbackL( callback );
       
   384     CleanupStack::Pop( callback );
       
   385     }
       
   386 
       
   387 // --------------------------------------------------------------------------
       
   388 // CFindViewBase::RemoveFilteringObserver
       
   389 // --------------------------------------------------------------------------
       
   390 //
       
   391 void CFindViewBase::RemoveFilteringObserver(
       
   392         MFilteredViewSupportObserver& aObserver )
       
   393     {
       
   394     iFilterObsOp->CancelCallback( &aObserver );
       
   395     const TInt index( iFilteringObservers.Find( &aObserver ) );
       
   396     if ( index != KErrNotFound )
       
   397         {
       
   398         iFilteringObservers.Remove( index );
       
   399         }
       
   400     }
       
   401 
       
   402 // --------------------------------------------------------------------------
       
   403 // CFindViewBase::ViewFiltering
       
   404 // --------------------------------------------------------------------------
       
   405 //
       
   406 MVPbkContactViewFiltering* CFindViewBase::ViewFiltering()
       
   407     {
       
   408     // This view supports further filtering.
       
   409     return this;
       
   410     }
       
   411 
       
   412 // --------------------------------------------------------------------------
       
   413 // CFindViewBase::CreateFilteredViewLC
       
   414 // --------------------------------------------------------------------------
       
   415 //
       
   416 MVPbkContactViewBase* CFindViewBase::CreateFilteredViewLC(
       
   417         MVPbkContactViewObserver& aObserver,
       
   418         const MDesCArray& aFindWords,
       
   419         const MVPbkContactBookmarkCollection* /*aAlwaysIncludedContacts*/ )
       
   420     {
       
   421     // NOTE: aAlwaysIncludedContacts is commented because in VPbkCntModel
       
   422     // filtered views are linked. CFindView->CRefineView->CRefineView etc.
       
   423     // Only the CFindView saves the always included contacts and they
       
   424     // are used also by all CRefineView instances through
       
   425     // MAlwaysIncludedContacts interface.
       
   426     CRefineView* refineView = CRefineView::NewLC( aFindWords, *this,
       
   427         iBaseView, aObserver, *iContactFindPolicy,
       
   428         *this );
       
   429     refineView->ActivateContactMatchL();
       
   430     return refineView;
       
   431     }
       
   432 
       
   433 // --------------------------------------------------------------------------
       
   434 // CFindViewBase::ContactViewReady
       
   435 // --------------------------------------------------------------------------
       
   436 //
       
   437 void CFindViewBase::ContactViewReady(
       
   438         MVPbkContactViewBase& /*aView*/ )
       
   439     {
       
   440     SendViewStateEventToObservers();
       
   441     }
       
   442 
       
   443 // --------------------------------------------------------------------------
       
   444 // CFindViewBase::ContactViewUnavailable
       
   445 // --------------------------------------------------------------------------
       
   446 //
       
   447 void CFindViewBase::ContactViewUnavailable(
       
   448         MVPbkContactViewBase& /*aView*/ )
       
   449     {
       
   450     SendViewStateEventToObservers();
       
   451     }
       
   452 
       
   453 // --------------------------------------------------------------------------
       
   454 // CFindViewBase::ContactAddedToView
       
   455 // --------------------------------------------------------------------------
       
   456 //
       
   457 void CFindViewBase::ContactAddedToView(
       
   458         MVPbkContactViewBase& aView,
       
   459         TInt aIndex,
       
   460         const MVPbkContactLink& aContactLink )
       
   461     {
       
   462     TRAPD( error, HandleContactAddedToViewL( aView, aIndex, aContactLink ) );
       
   463     if ( error != KErrNone )
       
   464         {
       
   465         ContactViewError( aView, error, EFalse );
       
   466         }
       
   467     }
       
   468 
       
   469 // --------------------------------------------------------------------------
       
   470 // CFindViewBase::ContactRemovedFromView
       
   471 // --------------------------------------------------------------------------
       
   472 //
       
   473 void CFindViewBase::ContactRemovedFromView(
       
   474         MVPbkContactViewBase& aView,
       
   475         TInt aIndex,
       
   476         const MVPbkContactLink& aContactLink )
       
   477     {
       
   478     TRAPD( error, HandleContactRemovedFromViewL( aView, aIndex, aContactLink ) );
       
   479     if ( error != KErrNone )
       
   480         {
       
   481         ContactViewError( aView, error, EFalse );
       
   482         }
       
   483     }
       
   484 
       
   485 // --------------------------------------------------------------------------
       
   486 // CFindViewBase::ContactViewError
       
   487 // --------------------------------------------------------------------------
       
   488 //
       
   489 void CFindViewBase::ContactViewError( MVPbkContactViewBase& /*aView*/,
       
   490         TInt aError, TBool aErrorNotified )
       
   491     {
       
   492     iViewReady = EFalse;
       
   493     ResetContacts();
       
   494     SendContactViewErrorEvent( aError, aErrorNotified );
       
   495     }
       
   496 
       
   497 // --------------------------------------------------------------------------
       
   498 // CFindViewBase::ContactViewReadyForFiltering
       
   499 // --------------------------------------------------------------------------
       
   500 //
       
   501 void CFindViewBase::ContactViewReadyForFiltering(
       
   502         MParentViewForFiltering& aView )
       
   503     {
       
   504     TRAPD( error, DoContactViewReadyForFilteringL( aView ) );
       
   505     if ( error != KErrNone )
       
   506         {
       
   507         ContactViewError( aView, error, EFalse );
       
   508         }
       
   509     else
       
   510         {
       
   511         ContactViewReady( aView );
       
   512         }
       
   513     }
       
   514 
       
   515 // --------------------------------------------------------------------------
       
   516 // CFindViewBase::ContactViewUnavailableForFiltering
       
   517 // --------------------------------------------------------------------------
       
   518 //
       
   519 void CFindViewBase::ContactViewUnavailableForFiltering(
       
   520         MParentViewForFiltering& /*aView*/ )
       
   521     {
       
   522     iViewReady = EFalse;
       
   523     ResetContacts();
       
   524     VPbkEng::SendViewEventToObservers( *this, iFilteringObservers,
       
   525         &MFilteredViewSupportObserver::ContactViewUnavailableForFiltering,
       
   526         &MVPbkContactViewObserver::ContactViewError );
       
   527     }
       
   528 
       
   529 // --------------------------------------------------------------------------
       
   530 // CFindViewBase::IsMatchL
       
   531 // --------------------------------------------------------------------------
       
   532 //
       
   533 TBool CFindViewBase::IsMatchL( const MVPbkViewContact& aViewContact )
       
   534     {
       
   535     return iContactFindPolicy->MatchContactNameL( *iFindStrings,
       
   536                                                   aViewContact );
       
   537     }
       
   538 
       
   539 // --------------------------------------------------------------------------
       
   540 // CFindViewBase::FindStrings
       
   541 // --------------------------------------------------------------------------
       
   542 //
       
   543 const MDesCArray& CFindViewBase::FindStrings() const
       
   544     {
       
   545     return *iFindStrings;
       
   546     }
       
   547 
       
   548 // -------------------------------------------------------------------------
       
   549 // CFindViewBase::SetFindStringsL
       
   550 // --------------------------------------------------------------------------
       
   551 //
       
   552 void CFindViewBase::SetFindStringsL( const MDesCArray& aFindStrings )
       
   553     {
       
   554     __ASSERT_DEBUG( iFindStrings, Panic( EPreCond_SetFindStringsL ) );
       
   555 
       
   556     iFindStrings->Reset();
       
   557     const TInt count = aFindStrings.MdcaCount();
       
   558     for ( TInt i = 0; i < count; ++i )
       
   559         {
       
   560         iFindStrings->AppendL( aFindStrings.MdcaPoint( i ) );
       
   561         }
       
   562     }
       
   563 
       
   564 // -------------------------------------------------------------------------
       
   565 // CFindViewBase::SendViewStateEventToObservers
       
   566 // --------------------------------------------------------------------------
       
   567 //
       
   568 void CFindViewBase::SendViewStateEventToObservers()
       
   569     {
       
   570     // Cancel any new AddObserverL callbacks to avoid duplicate event
       
   571     // sending.
       
   572     iObserverOp->Purge();
       
   573 
       
   574     void (MVPbkContactViewObserver::*notifyFunc)(MVPbkContactViewBase&);
       
   575     notifyFunc = &MVPbkContactViewObserver::ContactViewReady;
       
   576 
       
   577     if ( !iViewReady )
       
   578         {
       
   579         notifyFunc = &MVPbkContactViewObserver::ContactViewUnavailable;
       
   580         }
       
   581 
       
   582     VPbkEng::SendViewEventToObservers( *this, iObservers,
       
   583         notifyFunc, &MVPbkContactViewObserver::ContactViewError );
       
   584     VPbkEng::SendViewEventToObservers( *this, iFilteringObservers,
       
   585         notifyFunc, &MVPbkContactViewObserver::ContactViewError );
       
   586     }
       
   587 
       
   588 // -------------------------------------------------------------------------
       
   589 // CFindViewBase::DoContactViewReadyForFilteringL
       
   590 // --------------------------------------------------------------------------
       
   591 //
       
   592 void CFindViewBase::DoContactViewReadyForFilteringL(
       
   593         MVPbkContactViewBase& /*aView*/ )
       
   594     {
       
   595     ContactMatchL();
       
   596     iViewReady = ETrue;
       
   597     // Send ContactViewReadyForFiltering event so that other views in
       
   598     // stack can rebuild themselves before external observer are notified.
       
   599     VPbkEng::SendViewEventToObservers( *this, iFilteringObservers,
       
   600         &MFilteredViewSupportObserver::ContactViewReadyForFiltering,
       
   601         &MVPbkContactViewObserver::ContactViewError );
       
   602     }
       
   603 
       
   604 // --------------------------------------------------------------------------
       
   605 // CFindViewBase::HandleContactAddedToViewL
       
   606 // --------------------------------------------------------------------------
       
   607 //
       
   608 void CFindViewBase::HandleContactAddedToViewL( MVPbkContactViewBase& aView,
       
   609         TInt aIndex, const MVPbkContactLink& aContactLink )
       
   610     {
       
   611     if ( &iParentView == &aView )
       
   612         {
       
   613         // Let sub class do the addition if needed
       
   614         DoContactAddedToViewL( aView, aIndex, aContactLink,
       
   615             iMatchedContacts );
       
   616 
       
   617         // Get the index of the new contact in this view.
       
   618         TInt index( IndexOfLinkL( aContactLink ) );
       
   619         if ( index != KErrNotFound )
       
   620             {
       
   621             VPbkEng::SendViewEventToObservers( *this, index, aContactLink,
       
   622                 iObservers,
       
   623                 &MVPbkContactViewObserver::ContactAddedToView,
       
   624                 &MVPbkContactViewObserver::ContactViewError );
       
   625             VPbkEng::SendViewEventToObservers( *this, index, aContactLink,
       
   626                 iFilteringObservers,
       
   627                 &MVPbkContactViewObserver::ContactAddedToView,
       
   628                 &MVPbkContactViewObserver::ContactViewError );
       
   629             }
       
   630         }
       
   631     }
       
   632 
       
   633 // --------------------------------------------------------------------------
       
   634 // CFindViewBase::HandleContactRemovedFromViewL
       
   635 // --------------------------------------------------------------------------
       
   636 //
       
   637 void CFindViewBase::HandleContactRemovedFromViewL(
       
   638         MVPbkContactViewBase& aView, TInt /*aIndex*/,
       
   639         const MVPbkContactLink& aContactLink )
       
   640     {
       
   641     if ( &iParentView == &aView )
       
   642         {
       
   643         TInt index = KErrNotFound;
       
   644 
       
   645         CCntModelViewContact* removedContact = NULL;
       
   646         CViewContact* viewContact = CViewContact::NewL( iBaseView, SortOrder() );
       
   647         CleanupStack::PushL( viewContact );
       
   648         const TInt count( iMatchedContacts.Count() );
       
   649         for ( TInt i= 0; i < count && !removedContact; ++i  )
       
   650             {
       
   651             CCntModelViewContact* contact = iMatchedContacts[i];
       
   652             viewContact->SetViewContact( *contact );
       
   653 
       
   654             // Filter away the removed contact
       
   655             if ( aContactLink.RefersTo( *viewContact ) )
       
   656                 {
       
   657                 // Remove contact from the array
       
   658                 iMatchedContacts.Remove( i );
       
   659                 // Save the removed index for the observers
       
   660                 index = i;
       
   661                 // At this point nobody owns removedContact.
       
   662                 removedContact = contact;
       
   663                 }
       
   664             }
       
   665         CleanupStack::PopAndDestroy( viewContact );
       
   666         TBool takeCareOfOwnership = (removedContact && iOwnsContacts);
       
   667 
       
   668         // Notice: we can not delete the contact instance before
       
   669         // all observers have received the event. This is because
       
   670         // in case of CRefineView, iMatchedContacts contains references
       
   671         // to CCntModelViewContact instances. If we delete the contact
       
   672         // before notifying observer then the there will be invalid
       
   673         // pointer.
       
   674         if ( takeCareOfOwnership )
       
   675             {
       
   676             CleanupStack::PushL( removedContact );
       
   677             }
       
   678 
       
   679         if ( index != KErrNotFound )
       
   680             {
       
   681             VPbkEng::SendViewEventToObservers( *this, index, aContactLink,
       
   682                 iObservers,
       
   683                 &MVPbkContactViewObserver::ContactRemovedFromView,
       
   684                 &MVPbkContactViewObserver::ContactViewError );
       
   685             VPbkEng::SendViewEventToObservers( *this, index, aContactLink,
       
   686                 iFilteringObservers,
       
   687                 &MVPbkContactViewObserver::ContactRemovedFromView,
       
   688                 &MVPbkContactViewObserver::ContactViewError );
       
   689             }
       
   690 
       
   691         if ( takeCareOfOwnership)
       
   692             {
       
   693             // After all observers have received the Removed -event, it's
       
   694             // safe to actually destroy the contact.
       
   695             CleanupStack::PopAndDestroy( removedContact );
       
   696             }
       
   697         }
       
   698     }
       
   699 
       
   700 // --------------------------------------------------------------------------
       
   701 // CFindViewBase::DoAddObserver
       
   702 // --------------------------------------------------------------------------
       
   703 //
       
   704 void CFindViewBase::DoAddObserver( MVPbkContactViewObserver& aObserver )
       
   705     {
       
   706     if (iViewReady)
       
   707         {
       
   708         // If this view is ready and there was no error,
       
   709         // tell it to the observer
       
   710         aObserver.ContactViewReady( *this );
       
   711         }
       
   712     else
       
   713         {
       
   714         aObserver.ContactViewUnavailable( *this );
       
   715         }
       
   716     }
       
   717 
       
   718 // --------------------------------------------------------------------------
       
   719 // CFindViewBase::DoAddObserverError
       
   720 // --------------------------------------------------------------------------
       
   721 //
       
   722 void CFindViewBase::DoAddObserverError(
       
   723         MVPbkContactViewObserver& /*aObserver*/, TInt /*aError*/ )
       
   724     {
       
   725     // DoAddObserver doesn't leave so nothing to implement here
       
   726     }
       
   727 
       
   728 // --------------------------------------------------------------------------
       
   729 // CFindViewBase::DoAddFilteringObserverL
       
   730 // --------------------------------------------------------------------------
       
   731 //
       
   732 void CFindViewBase::DoAddFilteringObserverL(
       
   733         MFilteredViewSupportObserver& aObserver )
       
   734     {
       
   735     // Insert to first position because events are send in reverse order.
       
   736     iFilteringObservers.InsertL( &aObserver, 0 );
       
   737 
       
   738     if (iViewReady)
       
   739         {
       
   740         aObserver.ContactViewReadyForFiltering( *this );
       
   741         aObserver.ContactViewReady( *this );
       
   742         }
       
   743     else
       
   744         {
       
   745         aObserver.ContactViewUnavailableForFiltering( *this );
       
   746         aObserver.ContactViewUnavailable( *this );
       
   747         }
       
   748     }
       
   749 
       
   750 // --------------------------------------------------------------------------
       
   751 // CFindViewBase::DoAddFilteringObserverError
       
   752 // --------------------------------------------------------------------------
       
   753 //
       
   754 void CFindViewBase::DoAddFilteringObserverError(
       
   755         MFilteredViewSupportObserver& aObserver, TInt aError )
       
   756     {
       
   757     // See DoAddFilteringObserverL. If it leaves then adding the aObserver
       
   758     // failed.
       
   759     aObserver.ContactViewError( *this, aError, EFalse );
       
   760     }
       
   761 
       
   762 // --------------------------------------------------------------------------
       
   763 // CFindViewBase::ContactMatchL
       
   764 // --------------------------------------------------------------------------
       
   765 //
       
   766 void CFindViewBase::ContactMatchL()
       
   767     {
       
   768     // Reset current content
       
   769     ResetContacts();
       
   770     // Subclass matches
       
   771     MatchL( iMatchedContacts );
       
   772     }
       
   773 
       
   774 
       
   775 // --------------------------------------------------------------------------
       
   776 // CFindViewBase::ResetContacts
       
   777 // --------------------------------------------------------------------------
       
   778 //
       
   779 void CFindViewBase::ResetContacts()
       
   780     {
       
   781     if ( iOwnsContacts )
       
   782         {
       
   783         iMatchedContacts.ResetAndDestroy();
       
   784         }
       
   785     else
       
   786         {
       
   787         iMatchedContacts.Reset();
       
   788         }
       
   789     }
       
   790 
       
   791 // --------------------------------------------------------------------------
       
   792 // CFindViewBase::SendContactViewErrorEvent
       
   793 // --------------------------------------------------------------------------
       
   794 //
       
   795 void CFindViewBase::SendContactViewErrorEvent( TInt aError,
       
   796         TBool aErrorNotified )
       
   797     {
       
   798     TBool destroy = EFalse;
       
   799     iDestroyed = &destroy;
       
   800 
       
   801     // Send first to external observers...
       
   802     VPbkEng::SendEventToObserversWhenNotDestroyed( *this, aError, aErrorNotified, iObservers,
       
   803         &MVPbkContactViewObserver::ContactViewError, destroy );
       
   804     // ...then to internal. This ensures that events come first from lower
       
   805     // level find view.
       
   806     VPbkEng::SendEventToObserversWhenNotDestroyed( *this, aError, aErrorNotified,
       
   807         iFilteringObservers, &MVPbkContactViewObserver::ContactViewError, destroy );
       
   808     
       
   809     if ( !destroy )
       
   810         {
       
   811         iDestroyed = NULL;
       
   812         }
       
   813     }
       
   814 } // namespace VPbkCntModel
       
   815 // End of File