photosgallery/slideshow/view/src/shwmediakeyshandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 20:19:20 +0200
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/*
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* Copyright (c) 2006-2006 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:    Command object factory
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*
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*/
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#include <glxlog.h>
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#include <glxtracer.h>
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#include <coemain.h>
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//#include <ViaPlayerMediaKeyObserver.h>  // CViaPlayerMediaKeyObserver
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#include <e32keys.h>
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#include <e32event.h>
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#include "shwmediakeyshandler.h"
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//   
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CShwMediaKeyUtility::CShwMediaKeyUtility()
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    {
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    TRACER("CShwMediaKeyUtility::CShwMediaKeyUtility");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::CShwMediaKeyUtility()");
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    }
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// ---------------------------------------------------------------------------
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// Destructor.  Remove itself as a listner from the ViaPlayerMediaKeyObserver
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// ---------------------------------------------------------------------------
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//   
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CShwMediaKeyUtility::~CShwMediaKeyUtility()
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    {
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    TRACER("CShwMediaKeyUtility::~CShwMediaKeyUtility");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::~CShwMediaKeyUtility()");
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    delete iInterfaceSelector;
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    }
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// ---------------------------------------------------------------------------
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// NewLC - Standard two phase constructor placing itself on the cleanup stack
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// ---------------------------------------------------------------------------
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//   
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CShwMediaKeyUtility* CShwMediaKeyUtility::NewLC()
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    {
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    TRACER("CShwMediaKeyUtility::NewLC");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::NewLC()");
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    CShwMediaKeyUtility* self = new (ELeave) CShwMediaKeyUtility();
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// NewL - Standard two phase constructor
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// ---------------------------------------------------------------------------
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//   
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CShwMediaKeyUtility* CShwMediaKeyUtility::NewL()
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    {
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    TRACER("CShwMediaKeyUtility::NewL");
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    GLX_LOG_ENTRY_EXIT_LEAVE_L("CShwMediaKeyUtility::NewL()");
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    CShwMediaKeyUtility* self = CShwMediaKeyUtility::NewLC();
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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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// ConstructL - Adds istself as a media key listener to the
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//              ViaPlayerMediaKeyObserver
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// ---------------------------------------------------------------------------
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//   
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void CShwMediaKeyUtility::ConstructL()
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    {
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    TRACER("CShwMediaKeyUtility::ConstructL");
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    GLX_LOG_ENTRY_EXIT_LEAVE_L("CShwMediaKeyUtility::ConstructL()");
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    iInterfaceSelector = CRemConInterfaceSelector::NewL();
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    iCoreTarget = CRemConCoreApiTarget::NewL(*iInterfaceSelector, *this);
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    iInterfaceSelector->OpenTargetL();
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    }
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// ----------------------------------------------------------------------------
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// MrccatoCommand()
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// Receives events (press/click/release) from the following buttons:
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// 'Play/Pause', 'Volume Up', 'Volume Down', 'Stop', 'Rewind', 'Forward'
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// ----------------------------------------------------------------------------
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//   
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void CShwMediaKeyUtility::MrccatoCommand(TRemConCoreApiOperationId aOperationId, 
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                                     TRemConCoreApiButtonAction aButtonAct)
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    {
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    TRACER("CShwMediaKeyUtility::MrccatoCommand");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::MediaKeyEventL()");
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    TStdScanCode scanCode = TranslateKeyEvent(aOperationId);
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    DispatchKeyEvent(aButtonAct, scanCode);
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    }
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// ---------------------------------------------------------------------------
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// DoSimulateKeyEvent - Add key event to application queue
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// ---------------------------------------------------------------------------
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//   
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void CShwMediaKeyUtility::DoSimulateKeyEvent(TRawEvent::TType aKeyCode, 
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                                                        TStdScanCode aScanCode )
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	{
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	TRACER("CShwMediaKeyUtility::DoSimulateKeyEvent");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::DoSimulateKeyEvent()");
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    TRawEvent rawEvent;
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    rawEvent.Set(aKeyCode, aScanCode);
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    UserSvr::AddEvent(rawEvent);  
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	}
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   123
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// ---------------------------------------------------------------------------
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// TranslateKeyEvent - Translates RemCon keys into standard scan codes
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// ---------------------------------------------------------------------------
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//   
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TStdScanCode CShwMediaKeyUtility::TranslateKeyEvent(TRemConCoreApiOperationId aOperationId)
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    {
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    TRACER("CShwMediaKeyUtility::TranslateKeyEvent");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::TranslateKeyEvent()");
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    TStdScanCode scanCode = EStdKeyNull;
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    TRequestStatus status;
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    switch (aOperationId)
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        {
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    case ERemConCoreApiVolumeUp:
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        scanCode = EStdKeyIncVolume;
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        break;
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    case ERemConCoreApiVolumeDown:
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        scanCode = EStdKeyDecVolume;
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        break;
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    case ERemConCoreApiPausePlayFunction:
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        scanCode = EStdKeyDictaphonePlay;
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        iCoreTarget->PausePlayFunctionResponse(status, KErrNone); 
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        User::WaitForRequest(status);
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        break;
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    default:
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        break;
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        }
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    return scanCode;
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    }
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   158
    
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// ---------------------------------------------------------------------------
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// DispatchKeyEvent - Interperets the button action and acts accordingly
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// ---------------------------------------------------------------------------
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//   
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void CShwMediaKeyUtility::DispatchKeyEvent(TRemConCoreApiButtonAction aButtonAct,
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                                                            TStdScanCode aScanCode)
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    {
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    TRACER("CShwMediaKeyUtility::DispatchKeyEvent");
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    GLX_LOG_ENTRY_EXIT("CShwMediaKeyUtility::DispatchKeyEvent()");
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   168
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    if (EStdKeyNull == aScanCode)
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        {
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        return;
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        }
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    switch (aButtonAct)
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        {
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    case ERemConCoreApiButtonPress:
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        DoSimulateKeyEvent(TRawEvent::EKeyDown, aScanCode);
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        break;
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   179
        
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    case ERemConCoreApiButtonRelease:
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        DoSimulateKeyEvent(TRawEvent::EKeyUp, aScanCode);
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   182
        break;
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   183
        
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   184
    case ERemConCoreApiButtonClick:
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        DoSimulateKeyEvent(TRawEvent::EKeyDown, aScanCode);
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        DoSimulateKeyEvent(TRawEvent::EKeyUp, aScanCode);
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        break;
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   188
        }
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    }
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   190