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:  Data buffer transaction

    15 *

    16 */

    17 

    18 

    19 #ifndef C_DATABUFFERTRANSACTIONELEMENT_H

    20 #define C_DATABUFFERTRANSACTIONELEMENT_H

    21 

    22 #include "transactionelement.h"

    23 

    24 namespace AiUtility

    25     {

    26     class CContentPriorityMap;

    27     }

    28 

    29 class CXnNodeAppIf;

    30 

    31 namespace AiXmlUiController

    32 {

    33 

    34 /**

    35  *  @ingroup group_xmluicontroller

    36  * 

    37  * CDataBufferTransactionElement corresponds one text content publishing operation.

    38  *

    39  *  @lib AiXmlUiMain

    40  */

    41 class CDataBufferTransactionElement : public CTransactionElement

    42     {

    43 public:  // Constructors and destructor

    44     

    45     static CDataBufferTransactionElement*

    46         NewL( AiUtility::CContentPriorityMap& aContentPriorityMap );

    47     

    48     virtual ~CDataBufferTransactionElement();

    49 

    50 // New functions

    51     

    52     /**

    53     * Initializes this transaction element to publish content aData

    54     * to node aTarget.

    55     *

    56     * @param aTarget - the target of publishing.

    57     * @param aData - the content. 

    58     */

    59     void InitializeL(CXnNodeAppIf& aTarget, const TDesC8& aData);

    60     

    61     /**

    62      * Checks if given content type is supported by target ui element.

    63      *

    64      * @param aTarget target ui element.

    65      * @param aContentType content type

    66      * @return ETrue if content type is supported

    67      */

    68     static TBool IsSupported( CXnNodeAppIf& aTarget,

    69                               const TDesC8& aContentType );

    70     

    71 // Functions from CTransactionElement

    72 

    73     void Reset();

    74 

    75     void UpdateDataL();

    76     

    77 private:

    78 

    79     CDataBufferTransactionElement(

    80         AiUtility::CContentPriorityMap& aContentPriorityMap );

    81 

    82     void CheckTypeL( CXnNodeAppIf& aTarget );

    83     

    84     void SetDataL();

    85     

    86 private:    // Data

    87 

    88     /**

    89      * New content.

    90      */

    91     TPtrC8 iNewData;

    92         

    93     };

    94 

    95 }   // namespace AiXmlUiController

    96 

    97 #endif      // C_TEXTTRANSACTIONELEMENT_H  

    98            

    99 //  End of File