1 /*!

     2 * Copyright (c) 2010 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: Implements key sequence recognition filter for Dialpad.

    15 *

    16 */

    17 

    18 #ifndef DIALPADKEYSEQUENCEEVENTFILTER_H

    19 #define DIALPADKEYSEQUENCEEVENTFILTER_H

    20 

    21 #include <qobject>

    22 

    23 class Dialpad;

    24 

    25 /*!

    26     DialpadKeySequenceEventFilter

    27     Class provides key sequence recognition and handling.

    28 */

    29 class DialpadKeySequenceEventFilter : public QObject

    30 {

    31     Q_OBJECT

    32 

    33 public:

    34     explicit DialpadKeySequenceEventFilter(

    35         Dialpad* dialpad, 

    36         QObject* parent = 0);

    37     virtual ~DialpadKeySequenceEventFilter();

    38 

    39 public:

    40     bool eventFilter(QObject *watched, QEvent *event);

    41 

    42 private:

    43     /*!

    44        \fn bool preValidateKeySequence()

    45 

    46        Checks if the given sequence conforms key sequence command syntax.

    47        

    48        \return true if sequence conforms key sequence command syntax, 

    49        false otherwise.  

    50     */

    51     bool preValidateKeySequence(const QString &sequence);

    52     

    53 private:

    54     /*! Dialpad. Not own. */

    55     Dialpad* mDialpad;

    56 };

    57 

    58 #endif // DIALPADKEYSEQUENCEEVENTFILTER_H