phonebookui/Phonebook2/UIControls/src/cpbk2filteredviewstackelement.cpp
changeset 0 e686773b3f54
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/Phonebook2/UIControls/src/cpbk2filteredviewstackelement.cpp	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,487 @@
+/*
+* Copyright (c) 2006-2007 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:  Phonebook 2 view stack element.
+*
+*/
+
+
+#include "cpbk2filteredviewstackelement.h"
+
+// Virtual Phonebook
+#include <CVPbkContactFindPolicy.h>
+#include <MVPbkContactViewFiltering.h>
+#include <MVPbkContactViewBase.h>
+
+// Debugging headers
+#include <Pbk2Debug.h>
+
+/// Unnamed namespace for local definitions
+namespace {
+
+#ifdef _DEBUG
+enum TPanicCode
+    {
+    EPreCond_CreateViewL = 1,
+    EBaseViewHasNoFilter,
+    EViewAlreadyExists,
+    EPreCond_UpdateFilterL,
+    EPreCond_SetUnderDestruction,
+    EPreCond_FindMustBeDigraphicL
+    };
+
+void Panic(TPanicCode aReason)
+    {
+    _LIT(KPanicText, "CPbk2FilteredViewStackElement");
+    User::Panic(KPanicText, aReason);
+    }
+
+#endif // _DEBUG
+
+} /// namespace
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::CPbk2FilteredViewStackBaseElement
+// --------------------------------------------------------------------------
+//
+inline CPbk2FilteredViewStackBaseElement::CPbk2FilteredViewStackBaseElement( 
+        MVPbkContactViewBase& aBaseView ) :
+        iBaseView( aBaseView )
+    {
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::NewL
+// --------------------------------------------------------------------------
+//
+CPbk2FilteredViewStackBaseElement* CPbk2FilteredViewStackBaseElement::NewL( 
+        MVPbkContactViewBase& aBaseView )
+    {
+    CPbk2FilteredViewStackBaseElement* self =
+        new ( ELeave ) CPbk2FilteredViewStackBaseElement( aBaseView );
+    return self;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::CreateViewL
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackBaseElement::CreateViewL( 
+        MVPbkContactViewBase& /*aBaseView*/,
+        MVPbkContactViewBase& /*aParentView*/,
+        MVPbkContactViewObserver& /*aObserver*/ )
+    {
+    // Base element gets the view in constructor
+    __ASSERT_DEBUG( EFalse, Panic( EViewAlreadyExists ) );
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::View
+// --------------------------------------------------------------------------
+//  
+MVPbkContactViewBase* CPbk2FilteredViewStackBaseElement::View() const
+    {
+    return &iBaseView;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::FindArray
+// --------------------------------------------------------------------------
+//  
+const MDesCArray& CPbk2FilteredViewStackBaseElement::FindArray() const
+    {
+    CDesCArray* nil = NULL;
+    return *nil;
+    }
+    
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::Level
+// --------------------------------------------------------------------------
+//  
+TInt CPbk2FilteredViewStackBaseElement::Level() const
+    {
+    // Level is always zero for base element
+    return 0;
+    }
+    
+// --------------------------------------------------------------------------
+// CPbk2ViewStackBaseElement::AlwaysIncluded
+// --------------------------------------------------------------------------
+//  
+const MVPbkContactBookmarkCollection* 
+        CPbk2FilteredViewStackBaseElement::AlwaysIncluded() const
+    {
+    return NULL;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::IsSame
+// --------------------------------------------------------------------------
+//
+TBool CPbk2FilteredViewStackBaseElement::IsSame( 
+        const MPbk2FilteredViewStackElement& aOther ) const
+    {
+    // For all contacts view element it enough to compare levels
+    return aOther.Level() == Level();  
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::UpdateFilterL
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackBaseElement::UpdateFilterL( 
+        MVPbkContactViewBase& /*aBaseView*/,
+        MVPbkContactViewObserver& /*aObserver*/,
+        const MDesCArray& /*aSearchLevelArray*/,
+        const MVPbkContactBookmarkCollection* /*aAlwaysIncluded*/ )
+    {
+    __ASSERT_DEBUG( EFalse, Panic( EBaseViewHasNoFilter ) );
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::ViewState
+// --------------------------------------------------------------------------
+//
+MPbk2FilteredViewStackElement::TViewState 
+        CPbk2FilteredViewStackBaseElement::ViewState() const
+    {
+    return iState;    
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::SetViewState
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackBaseElement::SetViewState( TViewState aState )
+    {
+    iState = aState;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::UnderDestruction
+// --------------------------------------------------------------------------
+//
+TBool CPbk2FilteredViewStackBaseElement::UnderDestruction() const
+    {
+    // Base element can not be under destruction
+    return EFalse;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackBaseElement::SetUnderDestruction
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackBaseElement::SetUnderDestruction()
+    {
+    __ASSERT_DEBUG( EFalse, Panic( EPreCond_SetUnderDestruction ) );
+    }
+    
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::CPbk2FilteredViewStackElement
+// --------------------------------------------------------------------------
+//
+inline CPbk2FilteredViewStackElement::CPbk2FilteredViewStackElement( 
+        MVPbkContactFindPolicy& aFindPolicy,
+        const MVPbkContactBookmarkCollection* aAlwaysIncluded,
+        const MDesCArray* aSearchLevelArray )
+        :   iFindPolicy( aFindPolicy ),
+            iAlwaysIncluded( aAlwaysIncluded ),
+            iSearchLevelArray( aSearchLevelArray )
+    {
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::ConstructL
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackElement::ConstructL()
+    {
+    iLengthOfSearchArray = CountLengthOfStrings( *iSearchLevelArray );
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::NewL
+// --------------------------------------------------------------------------
+//
+CPbk2FilteredViewStackElement* CPbk2FilteredViewStackElement::NewL( 
+        MVPbkContactFindPolicy& aFindPolicy,
+        const MDesCArray* aSearchLevelArray,
+        const MVPbkContactBookmarkCollection* aAlwaysIncluded )
+    {
+    CPbk2FilteredViewStackElement* self = 
+            new ( ELeave ) CPbk2FilteredViewStackElement( aFindPolicy, 
+                aAlwaysIncluded, aSearchLevelArray );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::~CPbk2FilteredViewStackElement
+// --------------------------------------------------------------------------
+//
+CPbk2FilteredViewStackElement::~CPbk2FilteredViewStackElement()
+    {
+    delete iView;
+    delete iSearchLevelArray; //from FilteredViewStack
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::CreateViewL
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackElement::CreateViewL( 
+        MVPbkContactViewBase& aBaseView,
+        MVPbkContactViewBase& aParentView,
+        MVPbkContactViewObserver& aObserver )
+    {
+    __ASSERT_DEBUG( !iView && aParentView.ViewFiltering(), 
+            Panic ( EPreCond_CreateViewL ) );
+
+    if( FindMustBeDigraphicL() )
+        {
+        PBK2_DEBUG_PRINT( PBK2_DEBUG_STRING
+                ("FilteredViewStackElement::CreateViewL: Ortographic") );
+        // Use base view as the filtering view.
+        // This is needed to prevent accidentally filtering out contacts
+        // that include diraphic characters. For example with Croatian
+        // locale a contact name beginning with "nj" character would
+        // be filtered out with the (parent) find filter "n" and it would
+        // not be shown with find filter "nj".
+        iView = aBaseView.ViewFiltering()->CreateFilteredViewLC( 
+            aObserver, *iSearchLevelArray, iAlwaysIncluded );
+        }
+    else
+        {
+        PBK2_DEBUG_PRINT( PBK2_DEBUG_STRING
+                ("FilteredViewStackElement::CreateViewL: No ortographic") );
+        iView = aParentView.ViewFiltering()->CreateFilteredViewLC( 
+            aObserver, *iSearchLevelArray, iAlwaysIncluded );  
+        }
+
+    CleanupStack::Pop(); // iView
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::View
+// --------------------------------------------------------------------------
+//
+MVPbkContactViewBase* CPbk2FilteredViewStackElement::View() const
+    {
+    return iView;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::FindArray
+// --------------------------------------------------------------------------
+//
+const MDesCArray& CPbk2FilteredViewStackElement::FindArray() const
+    {
+    return *iSearchLevelArray;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::FindMustBeDigraphicL
+// --------------------------------------------------------------------------
+//
+TBool CPbk2FilteredViewStackElement::FindMustBeDigraphicL() const
+    {
+    __ASSERT_DEBUG( iSearchLevelArray, Panic( EPreCond_FindMustBeDigraphicL ) );
+
+    TBool isDigraphic( EFalse );
+
+    // Go through the find string tokens one-by-one and check if they
+    // include digraphs
+    for ( TInt i(0); i < iSearchLevelArray->MdcaCount(); i++ )
+        {
+        TPtrC findStringToken = iSearchLevelArray->MdcaPoint( i );
+        const TInt KDigraphLength(2);
+        const TInt tokenLength( findStringToken.Length() );
+        // No need to check single character find strings
+        if( tokenLength >= KDigraphLength )
+            {
+            TPtrC substring = findStringToken.Left( tokenLength - 1 );
+            if( !iFindPolicy.MatchRefineL( findStringToken, substring ) )
+                {
+                // The substring did not match the characters of the find
+                // string token -> the find string token must include digraphs
+                // For example with Croatian locale the find string "nj" does
+                // not include the substring "n" because "nj" is a digraph
+                isDigraphic = ETrue;
+                break;
+                }
+            }
+        }
+
+    return isDigraphic;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::Level
+// --------------------------------------------------------------------------
+//
+TInt CPbk2FilteredViewStackElement::Level() const
+    {
+    return iLengthOfSearchArray;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::AlwaysIncluded
+// --------------------------------------------------------------------------
+//
+const MVPbkContactBookmarkCollection* 
+        CPbk2FilteredViewStackElement::AlwaysIncluded() const
+    {
+    return iAlwaysIncluded;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::IsSame
+// --------------------------------------------------------------------------
+//
+TBool CPbk2FilteredViewStackElement::IsSame( 
+        const MPbk2FilteredViewStackElement& aOther ) const
+    {
+    // Elements are same if:
+    // 1) Filter level is same
+    // 2) Find texts match
+    return ( aOther.Level() == Level() && 
+             Match( aOther.FindArray(), FindArray() ) );
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::UpdateFilterL
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackElement::UpdateFilterL(
+        MVPbkContactViewBase& aBaseView,
+        MVPbkContactViewObserver& aObserver,
+        const MDesCArray& aSearchLevelArray,
+        const MVPbkContactBookmarkCollection* aAlwaysIncluded )
+    {
+    __ASSERT_DEBUG( iView, Panic( EPreCond_UpdateFilterL ) );
+
+    // update find text, first copy it to new array
+    TInt count = aSearchLevelArray.MdcaCount();
+    CDesCArrayFlat* temp = new ( ELeave ) CDesCArrayFlat( count );
+    
+    for ( TInt i = 0; i < count; ++i )
+        {
+        temp->AppendL( aSearchLevelArray.MdcaPoint( i ) );
+        }
+
+    delete iSearchLevelArray;
+    iSearchLevelArray = temp;
+
+    if( FindMustBeDigraphicL() )
+        {
+        delete iView;
+        iView = 0;
+        iView = aBaseView.ViewFiltering()->CreateFilteredViewLC( 
+            aObserver, *iSearchLevelArray, iAlwaysIncluded );
+        CleanupStack::Pop(); // iView
+        }
+    else
+        {
+        iView->ViewFiltering()->UpdateFilterL( 
+            *iSearchLevelArray, aAlwaysIncluded );
+        iState = EUpdating;
+        }
+    }
+
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::ViewState
+// --------------------------------------------------------------------------
+//
+MPbk2FilteredViewStackElement::TViewState 
+        CPbk2FilteredViewStackElement::ViewState() const
+    {
+    return iState;    
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::SetViewState
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackElement::SetViewState( TViewState aState )
+    {
+    iState = aState;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::UnderDestruction
+// --------------------------------------------------------------------------
+//
+TBool CPbk2FilteredViewStackElement::UnderDestruction() const
+    {
+    return iUnderDestruction;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::SetUnderDestruction
+// --------------------------------------------------------------------------
+//
+void CPbk2FilteredViewStackElement::SetUnderDestruction()
+    {
+    iUnderDestruction = ETrue;
+    }
+
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::Match
+// --------------------------------------------------------------------------
+//
+TBool CPbk2FilteredViewStackElement::Match( const MDesCArray& aArray1, 
+        const MDesCArray& aArray2 ) const
+    {
+    TBool isMatch = EFalse;    
+    TInt count = aArray1.MdcaCount();
+    if ( count == aArray2.MdcaCount() )
+        {
+        for ( TInt i = 0; i < count; ++i )
+            {
+            if ( aArray1.MdcaPoint( i ).CompareC( 
+                 aArray2.MdcaPoint( i ) ) == 0 )
+                {
+                isMatch = ETrue;
+                }
+            else
+                {
+                isMatch = EFalse;
+                break;
+                }
+            }
+        }
+    return isMatch;
+    }
+    
+// --------------------------------------------------------------------------
+// CPbk2FilteredViewStackElement::CountLengthOfStrings
+// Counts characters of array of strings
+// --------------------------------------------------------------------------
+//
+TInt CPbk2FilteredViewStackElement::CountLengthOfStrings( const MDesCArray& 
+    aStringArray ) const
+    {
+    TInt stringCount = aStringArray.MdcaCount();
+    TInt totalLength = 0;
+    for ( TInt i = 0; i < stringCount; ++i )
+        {
+        totalLength += aStringArray.MdcaPoint( i ).Length();
+        }
+        
+    return totalLength;
+    }
+    
+// End of File