vtuis/videotelui/inc/commands/cvtuicommandmodifybase.h
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     1 /*
       
     2 * Copyright (c) 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:  Command modifier base class definition.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef C_VTUICOMMANDMODIFYBASE_H
       
    20 #define C_VTUICOMMANDMODIFYBASE_H
       
    21 
       
    22 #include <e32base.h>
       
    23 
       
    24 #include "mvtuicommandsetting.h"
       
    25 
       
    26 /**
       
    27  *  CVtUiCommandModifyBase
       
    28  *
       
    29  *  Command modifier base class. Command modifiers can be used for modifying
       
    30  *  different command sets. E.g. in toolbar and number entry a command modifiers
       
    31  *  are being used for modifying softkeys.
       
    32  *
       
    33  *  @since S60 v3.2
       
    34  */
       
    35 NONSHARABLE_CLASS( CVtUiCommandModifyBase ) : public CBase
       
    36     {
       
    37 
       
    38 public: // static methods
       
    39 
       
    40     /**
       
    41      * Returns TLinearOrder<> for priority ordering.
       
    42      */
       
    43     static TLinearOrder< CVtUiCommandModifyBase > PriorityOrder();
       
    44 
       
    45 private: // static methods
       
    46 
       
    47     /**
       
    48      * Priority ordering function.
       
    49      */
       
    50     static TInt PriorityOrderFunc( const CVtUiCommandModifyBase& aM1,
       
    51         const CVtUiCommandModifyBase& aM2 );
       
    52 
       
    53 public: // pure virtual methods
       
    54 
       
    55     /**
       
    56      * Modifies command set.
       
    57      */
       
    58     virtual void ModifyCommandsL( MVtUiCommandSetting& aCommandSettings ) = 0;
       
    59 
       
    60     /**
       
    61      * Returns ETrue if this modifier supports given command set type.
       
    62      */
       
    63     virtual TBool Supports( MVtUiCommandSetting::Type aType ) const = 0;
       
    64 
       
    65 protected:
       
    66 
       
    67     /**
       
    68      * Constructor
       
    69      */
       
    70     CVtUiCommandModifyBase( TInt aPriority );
       
    71 
       
    72 private:
       
    73 
       
    74     // Modifier priority
       
    75     const TInt iPriority;
       
    76 
       
    77     };
       
    78 
       
    79 #endif // C_VTUICOMMANDMODIFYBASE_H