1 /*

     2 * Copyright (c) 2002 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:  MsgBaseControlObserver  declaration

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef INC_MSGBASECONTROLOBSERVER_H

    21 #define INC_MSGBASECONTROLOBSERVER_H

    22 

    23 // ========== INCLUDE FILES ================================

    24 

    25 // ========== CONSTANTS ====================================

    26 

    27 // ========== MACROS =======================================

    28 

    29 // ========== DATA TYPES ===================================

    30 

    31 enum TMsgControlEventRequest

    32     {

    33     EMsgEnsureCorrectFormPosition,

    34     EMsgRotateFocusUp,

    35     EMsgRotateFocusDown,

    36     EMsgHeightChanged,

    37     EMsgScrollForm,

    38     EMsgCheckIfFocusIsAboveThis,

    39     EMsgDenyCut,

    40     EMsgDenyCopy,

    41     EMsgDenyPaste,

    42     EMsgUpdateScrollbar,

    43     EMsgStateFlags,

    44     EMsgGetNaviIndicators,

    45     EMsgButtonPressed

    46     };    

    47 

    48 // ========== FUNCTION PROTOTYPES ==========================

    49 

    50 // ========== FORWARD DECLARATIONS =========================

    51 

    52 class CMsgBaseControl;

    53 

    54 // ========== CLASS DECLARATION ============================

    55 

    56 /**

    57 *

    58 */

    59 class MMsgBaseControlObserver

    60     {

    61 

    62     public:

    63         

    64         /**

    65         * Returns whether view is initialized.

    66         */

    67         virtual TBool ViewInitialized() const = 0;

    68         

    69         /**

    70         * Returns the current view rectangle.

    71         * @return

    72         */

    73         virtual TRect ViewRect() const = 0;

    74         

    75         /**

    76         * Handles an event from a control.

    77         * @param aControl

    78         * @param aRequest

    79         * @param aDelta

    80         * @return

    81         */

    82         virtual TBool HandleBaseControlEventRequestL(

    83             CMsgBaseControl*        aControl,

    84             TMsgControlEventRequest aRequest,

    85             TInt                    aDelta) = 0;

    86 

    87         /**

    88         * Handles an event from a control.

    89         * @param aControl

    90         * @param aRequest

    91         * @return

    92         */

    93         virtual TBool HandleBaseControlEventRequestL(

    94             CMsgBaseControl*        aControl,

    95             TMsgControlEventRequest aRequest) = 0;

    96 

    97         /**

    98         * Handles an event from a control.

    99         * @param aControl

   100         * @param aRequest

   101         * @param aArg1

   102         * @param aArg2

   103         * @param aArg3

   104         * @return

   105         */

   106         virtual TInt HandleEditObserverEventRequestL(

   107             const CCoeControl*      aControl,

   108             TMsgControlEventRequest aRequest,

   109             TAny*                   aArg1 = 0,

   110             TAny*                   aArg2 = 0,

   111             TAny*                   aArg3 = 0

   112             ) = 0;

   113     };

   114 

   115 #endif

   116 

   117 // End of File