1 /*

     2 * Copyright (c) 2008 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:  Responsible for capturing pointer events

    15 *

    16 */

    17 

    18 #ifndef _POINTERCAPTURER_H_

    19 #define _POINTERCAPTURER_H_

    20 

    21 // INCLUDES

    22 #include <e32std.h>

    23 #include <e32base.h>

    24 

    25 class CAlfControl;

    26 class CAlfControlGroup;

    27 class CAlfEnv;

    28 class CAlfDisplay;

    29 

    30 // CLASS DECLARATION

    31 

    32 namespace GestureHelper 

    33 {

    34 

    35 class CGestureHelperImpl;

    36 class CPointerCaptureControl;

    37 

    38 /**

    39  * CPointerCaptureControl

    40  * Gesture control own a gesture helper, and captures any pointer events that 

    41  * no other control captures. After it captures pointer down event, it will 

    42  * capture all pointer events until pointer up. It does this by bringing its

    43  * control group to the top upon pointer down, and lowering the control group

    44  * to the botton upon pointer up.

    45  */

    46 NONSHARABLE_CLASS( CPointerCapturer ) : public CBase

    47     {

    48 public: 

    49     /** Two-phased constructor */

    50     static CPointerCapturer* NewL();

    51     /** Destructor */

    52     ~CPointerCapturer();

    53     

    54     void InitForAlfredL( CGestureHelperImpl& aHelper, CAlfEnv& aEnv, 

    55         CAlfDisplay& aDisplay, TInt aControlGroupId );

    56 

    57     void StartL();

    58     void Stop();

    59     

    60 private:    

    61     /// 

    62     CPointerCaptureControl* iCaptureControl;

    63     TInt iControlGroupId;

    64     };

    65 

    66 } // namespace GestureHelper

    67     

    68 #endif // _POINTERCAPTURER_H_