photosgallery/slideshow/view/src/shwslideshowkeyhandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 20:19:20 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:    The view key handling control for the slideshow
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 *
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*/
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//  CLASS HEADER
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#include "shwslideshowkeyhandler.h"
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//  EXTERNAL INCLUDES
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//  INTERNAL INCLUDES
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#include <glxlog.h>
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#include <glxtracer.h>
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#include <glxuiutility.h>
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#include "shwslideshowengine.h"
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#include "shwslideshowpausehandler.h"
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#include "shwslideshowview.h"
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// -----------------------------------------------------------------------------
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// C++ Constructor. 
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// -----------------------------------------------------------------------------
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inline CShwSlideShowKeyHandler::CShwSlideShowKeyHandler(
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        CShwSlideshowEngine& aEngine, 
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        CShwSlideShowPauseHandler& aPauseHandler,
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        TInt& aState ) 
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    : iEngine( aEngine ),iPauseHandler( aPauseHandler ), iState( aState )
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    {
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    TRACER("CShwSlideShowKeyHandler::CShwSlideShowKeyHandler");
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    GLX_LOG_INFO("CShwSlideShowKeyHandler::CShwSlideShowKeyHandler");
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    // No implementation required
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    }
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// -----------------------------------------------------------------------------
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// ConstructL
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// -----------------------------------------------------------------------------
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void CShwSlideShowKeyHandler::ConstructL()
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    {
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    TRACER("CShwSlideShowKeyHandler::ConstructL");
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    GLX_LOG_INFO("CShwSlideShowKeyHandler::ConstructL");
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    iUiUtility = CGlxUiUtility::UtilityL();
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    }
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// -----------------------------------------------------------------------------
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// NewL. Static construction
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// -----------------------------------------------------------------------------
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CShwSlideShowKeyHandler* CShwSlideShowKeyHandler::NewL(
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        CShwSlideshowEngine& aEngine,
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        CShwSlideShowPauseHandler& aPauseHandler,
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        TInt& aState )
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    {
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    TRACER("CShwSlideShowKeyHandler::NewL");
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    GLX_LOG_INFO("CShwSlideShowKeyHandler::NewL");
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    CShwSlideShowKeyHandler* self = 
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        new( ELeave ) CShwSlideShowKeyHandler( aEngine, aPauseHandler,
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                aState );
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(self);
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// Destructor.
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// -----------------------------------------------------------------------------
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CShwSlideShowKeyHandler::~CShwSlideShowKeyHandler()
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    {
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    TRACER("CShwSlideShowKeyHandler::~CShwSlideShowKeyHandler");
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    GLX_LOG_INFO("CShwSlideShowKeyHandler::~CShwSlideShowKeyHandler");
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    if ( iUiUtility )
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        {
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        iUiUtility->Close();
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        }
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    // No implementation required
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    }
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// -----------------------------------------------------------------------------
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// OfferKeyEventL.
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// -----------------------------------------------------------------------------
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TKeyResponse CShwSlideShowKeyHandler::OfferKeyEventL(
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        const TKeyEvent& aKeyEvent, TEventCode aType )
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    {
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    TRACER("CShwSlideShowKeyHandler::OfferKeyEventL");
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    GLX_LOG_INFO( "CShwSlideShowKeyHandler::OfferKeyEventL" );
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    TKeyResponse retVal = EKeyWasNotConsumed;
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    if( aType == EEventKeyDown )
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        {
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        switch( aKeyEvent.iScanCode )
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            {
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            case EStdKeyIncVolume : // volume up
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                {
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                iEngine.VolumeUpL();
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                retVal = EKeyWasConsumed;
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                break;
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                }
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            case EStdKeyDecVolume : // volume down
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                {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   112
                iEngine.VolumeDownL();
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   113
                retVal = EKeyWasConsumed;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   114
                break;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   115
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   116
            case EStdKeyLeftArrow :	// this gets rotated in landscape
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   117
                {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   118
                // show previous image
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   119
                iEngine.PreviousItemL();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   120
                retVal = EKeyWasConsumed;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   121
                break;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   122
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   123
            case EStdKeyRightArrow : // this gets rotated in landscape
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   124
                {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   125
                iEngine.NextItemL();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   126
                retVal = EKeyWasConsumed;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   127
                break;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   128
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   129
            case EStdKeyDevice0 : // left soft key
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   130
                {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   131
                iEngine.LSKPressedL();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   132
                // key was consumed
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   133
                retVal = EKeyWasConsumed;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   134
                break;                
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   135
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   136
            case EStdKeyDevice3 : // navi select
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   137
                {
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   138
                iPauseHandler.ToggleUiControlsVisibiltyL();
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
                // key was consumed
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   140
                retVal = EKeyWasConsumed;
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   141
                break;
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
                }
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
            case EStdKeyDevice1 : // right soft key
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   144
                {
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
                // Exiting so revert to showing the system skin
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
                // Note: this has to be done here, not in the view deactivation
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   147
                // as when we come to deactivate, the screen furniture will
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   148
                // match the view id to the active view (e.g. the tile view)
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   149
                //@todo-check
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   150
                //iScreenFurniture.DisableSystemSkinL( iViewId.iUid,
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   151
                //    CGlxScreenFurniture::EGlxSfItemLeftSoftkey, EFalse );
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   152
                //iScreenFurniture.DisableSystemSkinL( iViewId.iUid,
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   153
                //    CGlxScreenFurniture::EGlxSfItemRightSoftkey, EFalse );
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
                // Note that in practice it doesn't matter whether we return
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
                // EKeyWasConsumed or EKeyWasNotConsumed as the result is
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
                // the same (we still get back to the last view). This is due to
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
                // HUI's key handling. So, for safety's sake, if in future there 
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
                // are changes to HUI to cease processing the key events when 
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
                // EKeyWasConsumed is returned, then we return EKeyWasNotConsumed to
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
                // ensure that the command is forwarded to the back command handler.
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
                break;                
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
                }
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
            default:	
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
                {
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   165
                retVal = EKeyWasNotConsumed;
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
                break;
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
                }
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
            }// end switch
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
        }// end if
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
    // if its a system generated exit event
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
    // set the state 
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   172
    else if (aType == EEventKey && aKeyEvent.iScanCode == EStdKeyNo)
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
    	{
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
  
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
 //       iState = CShwSlideshowView::EShwExiting;
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
    	iUiUtility->SetExitingState(ETrue);
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
    	} // end if else
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
    return retVal; 
4e91876724a2 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
    }