1 /*

     2 * Copyright (c) 2007-2009 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:  MR observer for the custom list pane

    15 *

    16 */

    17 

    18 #ifndef MMRFIELDCONTAINEROBSERVER_H

    19 #define MMRFIELDCONTAINEROBSERVER_H

    20 

    21 //<cmail>

    22 #include "esmrdef.h"

    23 //</cmail>

    24 

    25 class CESMRField;

    26 

    27 /**

    28  *  Observer interface for scrolling fields up and down.

    29  *

    30  *  @see cmrlistpane.h

    31  *  @lib esmrgui.lib

    32  */

    33  class MMRFieldContainerObserver

    34     {

    35 public:

    36     /**

    37      * Scrolls list items up

    38      * @param aPx Amount of scroll in pixels

    39      */

    40     virtual void ScrollFieldsUp( TInt aPx ) = 0;

    41     

    42     /**

    43      * Scrolls list items down

    44      * @param aPx Amount of scroll in pixels

    45      */

    46     virtual void ScrollFieldsDown( TInt aPx ) = 0;

    47     

    48     /**

    49      * Tells to the list pane that scroll bar 

    50      * and physics require updating.

    51      *

    52      * @param aPx Amount of scroll in pixels

    53      */

    54     virtual void UpdateScrollBarAndPhysics() = 0;

    55     

    56     };

    57 

    58 #endif // MMRFIELDCONTAINERPOSITIONOBSERVER_H