1 /*

     2 * Copyright (c) 2005-2007 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:  Transaction element for publishing empty content

    15 *

    16 */

    17 

    18 

    19 #include "xntype.h"

    20 #include "xnnewsticker.h"

    21 #include "xnbitmap.h"

    22 #include "xntext.h"

    23 #include "emptycontenttransactionelement.h"

    24 #include "aixmluiconstants.h"

    25 #include "aixmluiutils.h"

    26 

    27 using namespace AiXmlUiController;

    28 using namespace XnImageInterface;

    29 using namespace XnTextInterface;

    30 using namespace AiUiDef::xml;

    31 

    32 const TInt KControlIndexOffset = 1;

    33 

    34 // ======== MEMBER FUNCTIONS ========

    35 

    36 CEmptyContentTransactionElement::CEmptyContentTransactionElement(

    37                                 AiUtility::CContentPriorityMap& aContentPriorityMap)

    38     : CTransactionElement( aContentPriorityMap ),

    39       iIndex( KErrNotFound )

    40     {

    41     }

    42 

    43 CEmptyContentTransactionElement* CEmptyContentTransactionElement::NewL(

    44                                 AiUtility::CContentPriorityMap& aContentPriorityMap)

    45     {

    46     CEmptyContentTransactionElement* self =

    47             new( ELeave ) CEmptyContentTransactionElement( aContentPriorityMap );

    48     return self;

    49     }

    50 

    51 CEmptyContentTransactionElement::~CEmptyContentTransactionElement()

    52     {

    53     }

    54 

    55 void CEmptyContentTransactionElement::InitializeL( CXnNodeAppIf& aTarget, TInt aIndex )

    56     {

    57     SetTarget( aTarget );

    58     

    59     // Indexes in XML theme run 1...n, but in control interface 0...n-1

    60     iIndex = aIndex - KControlIndexOffset;

    61     }

    62 

    63 void CEmptyContentTransactionElement::Reset()

    64     {

    65     CTransactionElement::Reset();

    66     iIndex = KErrNotFound;

    67     }

    68 

    69 void CEmptyContentTransactionElement::UpdateDataL()

    70     {

    71     CXnType* type = Target().Type();

    72 

    73     if ( type->Type() == XnImageInterface::MXnImageInterface::Type() )

    74         {

    75         MXnImageInterface* imageIntr = NULL;

    76         if ( !XnComponentInterface::MakeInterfaceL( imageIntr, Target() ) )

    77             {

    78             User::Leave( KErrNotSupported );

    79             }

    80         // Clears the bitmaps from component

    81         imageIntr->SetContentBitmaps( NULL, NULL );

    82         }

    83     else if ( type->Type() == XnTextInterface::MXnTextInterface::Type() ) // text element

    84             {

    85             // Get control interface

    86             XnTextInterface::MXnTextInterface* textControl = NULL;

    87             XnComponentInterface::MakeInterfaceL( textControl, Target() );

    88             LeaveIfNull( textControl, KErrNotSupported );

    89             

    90             // Clears the text from component

    91             textControl->SetTextL( KNullDesC );

    92             }

    93     else

    94         {

    95         CXnNodeAppIf* parent = Target().ParentL();

    96         LeaveIfNull( parent, KErrNotSupported );

    97         const TDesC8& type = LeaveIfNull( parent->Type(), KErrNotSupported )->Type();

    98             

    99         if ( type == XnNewstickerInterface::MXnNewstickerInterface::Type() )

   100             {

   101             XnNewstickerInterface::MXnNewstickerInterface* newsticker = NULL;

   102             XnComponentInterface::MakeInterfaceL( newsticker, *parent );

   103             LeaveIfNull( newsticker, KErrGeneral );

   104             TInt titleIndexVal = -1;

   105             CXnProperty* titleIndex = Target().GetPropertyL( XnPropertyNames::title::KTitleIndex );

   106             if ( titleIndex )

   107                 {

   108                 TLex8 lex( titleIndex->StringValue() );

   109                 TInt err = lex.Val( titleIndexVal );

   110                 if ( err == KErrNone && titleIndexVal > -1 )

   111                     {

   112                     newsticker->DeleteTitle( titleIndexVal );

   113                     }

   114                 }

   115             }

   116         }

   117     // Clear current content priority

   118     ClearContentPriorityL();

   119     }