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 the License "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: 

    15 *      Internal class for storing a window.

    16 *  

    17 *

    18 */

    19 

    20 

    21 #ifndef __MULTIPLE_WINDOWS_WINDOWQUEUE_H__

    22 #define __MULTIPLE_WINDOWS_WINDOWQUEUE_H__

    23 

    24 // INCLUDES FILES

    25 #include "WmlBrowserBuild.h"

    26 #include <e32base.h>

    27 

    28 // FORWARD DECLARATIONS

    29 class CBrowserWindow;

    30 

    31 // CLASS DECLARATION

    32 

    33 // multiple linked queue for windows

    34 // iPrev and iNext for stepping through all the queue

    35 // iParent points to the window's parent

    36 class CBrowserWindowQue: public CBase

    37     {

    38     public:  // default constructor to have a valid window

    39         CBrowserWindowQue( CBrowserWindow* aWindow ) : 

    40              iWindow(aWindow), iParent(NULL),

    41              iPrev(NULL), iNext(NULL), iStatus( 0 ) {}

    42         ~CBrowserWindowQue();

    43 

    44     public:

    45         // returns the last item in the queue

    46         inline CBrowserWindowQue* LastItem() const ;

    47         // appends an iten at the end of the queue

    48         void AppendL( CBrowserWindowQue* aItem );

    49         // points to the 'next' window which is not deleted

    50         CBrowserWindowQue* Next() const;

    51         // points to the 'prev' window which is not deleted

    52         CBrowserWindowQue* Prev() const;

    53 

    54         

    55     public:

    56         enum TWindowStatus {  // bit mask

    57             EWindowNone = 0,

    58             EWindowDeleted = 1

    59         };

    60 

    61     public:  // data members

    62         CBrowserWindow* iWindow;

    63         CBrowserWindowQue* iParent;

    64         CBrowserWindowQue* iPrev;

    65         CBrowserWindowQue* iNext;

    66         TInt iStatus;  // bitmask

    67     };

    68 

    69 

    70 #endif  // __MULTIPLE_WINDOWS_WINDOWQUEUE_H__

    71 

    72 // End of File