/*

 * Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:  USB UI queries notifier class.

 *

 */

// INCLUDE FILES

#include <eikenv.h>          // Eikon environment

#include <bautils.h>         // BAFL utils (for language file)

#include <utf.h>             // Unicode character conversion utilities

#include <StringLoader.h>    // Localisation stringloader

#include <AknQueryDialog.h> 

#include <aknnotewrappers.h>

#include <usbuinotif.h>                     // pck

#include <usbuinotif.rsg>                   // Own resources

#include "usbuinqueriesnotifiermdrv.h"      // Own class definition

#include "usbuinotifdebug.h"                // Debugging macros

#include <SecondaryDisplay/usbuinotifsecondarydisplay.h>     // Dialog index for cover UI

// ================= MEMBER FUNCTIONS =========================================

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::NewL

// Two-phased constructor.

// ----------------------------------------------------------------------------

//

CUSBUIQueriesNotifier* CUSBUIQueriesNotifier::NewL()

    {

        FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::NewL"));

    CUSBUIQueriesNotifier* self = new (ELeave) CUSBUIQueriesNotifier();

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::CUSBUIQueriesNotifier

// C++ default constructor can NOT contain any code, that

// might leave.

// ----------------------------------------------------------------------------

//

CUSBUIQueriesNotifier::CUSBUIQueriesNotifier()

    {

    }

// ----------------------------------------------------------------------------

// Destructor

// ----------------------------------------------------------------------------

//

CUSBUIQueriesNotifier::~CUSBUIQueriesNotifier()

    {

    //Make sure that the request is completed. Note that inside the destructor,

    //this virtual function call is to local CUSBUIQueriesNotifier::Cancel, 

    //not to any possibly derived class implementation. 

    Cancel();

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::RegisterL

// Register notifier.

// ----------------------------------------------------------------------------

//

CUSBUIQueriesNotifier::TNotifierInfo CUSBUIQueriesNotifier::RegisterL()

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::RegisterL"));

    iInfo.iUid = KQueriesNotifier;

    iInfo.iChannel = KQueriesNotifier;

    iInfo.iPriority = ENotifierPriorityVHigh; // must be higher than the one 

        // in cableconnected notifier

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::RegisterL completed"));

    return iInfo;

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::StartL

// Synchronic notifier launch. 

// ----------------------------------------------------------------------------

//

TPtrC8 CUSBUIQueriesNotifier::StartL(const TDesC8& aBuffer)

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::StartL()"));

    TUSBQueriesNotiferParams params; //stores parameters from aBuffef

    TPckgC<TUSBQueriesNotiferParams> pckg( params );

    pckg.Set( aBuffer );

    // Save the type of the query for later use (dialog selection)

    //

    if (pckg().iQuery == EUSBNoMemoryCard)

        {

        TRAPD( err, GetParamsL( aBuffer, 0, iMessage ));

        if (err)

            {

            iNeedToCompleteMessage = EFalse;

            User::Leave( err );

            }

        }

    TPtrC8 ret( KNullDesC8 );

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::StartL() completed"));

    return (ret);

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::GetParamsL

//  Jump to RunL as soon as possible.

// ----------------------------------------------------------------------------

//

void CUSBUIQueriesNotifier::GetParamsL(const TDesC8& aBuffer,

        TInt aReplySlot, const RMessagePtr2& aMessage)

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::GetParamsL"));

    if (iUSBQueryDlg || iReplySlot != 0 || iNeedToCompleteMessage)

        {

        User::Leave( KErrInUse );

        }

    iMessage = aMessage;

    iNeedToCompleteMessage = ETrue;

    iReplySlot = aReplySlot;

    // Get parameters 

    //

    TUSBQueriesNotiferParams params; //stores parameters from aBuffer

    TPckgC<TUSBQueriesNotiferParams> pckg( params );

    pckg.Set( aBuffer );

    // Save the type of the query for later use (dialog selection)

    //

    iQueryType = pckg().iQuery;

    if (iQueryType == EUSBNoMemoryCard)

        {

        iNeedToCompleteMessage = EFalse;

        }

    // Call SetActive() so RunL() will be called by the active scheduler

    //

    SetActive();

    iStatus = KRequestPending;

    TRequestStatus* stat = &iStatus;

    User::RequestComplete( stat, KErrNone );

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::GetParamsL() completed"));

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::RunL

// Ask user response and return it to caller.

// ----------------------------------------------------------------------------

//

void CUSBUIQueriesNotifier::RunL()

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::RunL"));

    TBool isCancelKey = EFalse;

    TBool isErrorQuery = EFalse;

    TInt returnValue = KErrNone;

    // for cover display support

    TInt coverDialogId = EUSBCoverInvalidDialogId;

    // Choose text and other query attributes

    //

    HBufC* stringHolder = GetQueryAttributesLC( coverDialogId, isCancelKey, isErrorQuery );

    //check if query text string loading was successful

    if (NULL != stringHolder)

        {

        DisableKeylock();

        SuppressAppSwitching( ETrue );

        returnValue = QueryUserResponseL( *stringHolder, coverDialogId,

                isCancelKey, isErrorQuery );

        SuppressAppSwitching( EFalse );

        RestoreKeylock();

        CleanupStack::PopAndDestroy( stringHolder );

        }

    else

        {

        returnValue = KErrUnknown;

        }

    CompleteMessage( returnValue );

    // cancelling the notifier so that next one on the queue can be displayed.

    // it may be that the client calls cancel too, but it is ok

    iManager->CancelNotifier( iInfo.iUid );

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::RunL() completed"));

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::Cancel

// Release all own resources (member variables)

// ----------------------------------------------------------------------------

//

void CUSBUIQueriesNotifier::Cancel()

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::Cancel"));

    if (iUSBQueryDlg)

        {

        delete iUSBQueryDlg;

        iUSBQueryDlg = NULL;

        }

    CompleteMessage( KErrCancel );

    CUSBUINotifierBase::Cancel();

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::Cancel() completed"));

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::QueryUserResponseL

// Show query dialog. 

// ----------------------------------------------------------------------------

//

TInt CUSBUIQueriesNotifier::QueryUserResponseL(const TDesC& aStringHolder,

        TInt aCoverDialogId, TBool aIsCancelKey, TBool aIsErrorQuery)

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::QueryUserResponseL"));

    TInt returnValue = KErrNone;

    iUSBQueryDlg = CAknQueryDialog::NewL( CAknQueryDialog::EConfirmationTone );

    // Show dialog with or without the Cancel

    //

    if (aIsErrorQuery) 

        {

        // aIsErrorQuery flag is set in GetQueryAttributesLC()

        // there is no defined QueryDialogError in resources so QueryOTGerror is used (contains Stop icon)

        iUSBQueryDlg->PrepareLC( R_USB_QUERY_OTG_ERROR );

        }

    else if (aIsCancelKey)

        {

        iUSBQueryDlg->PrepareLC( R_USB_QUERY_WITH_CANCEL );

        }

    else

        {

        iUSBQueryDlg->PrepareLC( R_USB_QUERY_WITHOUT_CANCEL );

        }

    if (iCoverDisplaySupported)

        {

        iUSBQueryDlg->PublishDialogL( aCoverDialogId, KUSBUINotifCategory );

        }

    iUSBQueryDlg->SetPromptL( aStringHolder );

    iUSBQueryDlg->SetFocus( ETrue );

        FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::QueryUserResponseL calling RunLD"));

    TInt keypress = iUSBQueryDlg->RunLD();

    iUSBQueryDlg = NULL;

    if (keypress) // User has accepted the dialog

        {

        returnValue = KErrNone;

            FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::QueryUserResponseL keypress"));

        }

    else

        {

        returnValue = KErrCancel;

            FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::QueryUserResponseL NO keypress"));

        }

        FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::QueryUserResponseL completed"));

    return returnValue;

    }

// ----------------------------------------------------------------------------

// CUSBUIQueriesNotifier::GetQueryAttributesLC

// Get query text and the other attributes for the query dialog. 

// ----------------------------------------------------------------------------

//

HBufC* CUSBUIQueriesNotifier::GetQueryAttributesLC(TInt& aCoverDialogId,

        TBool& aIsCancelKey, TBool& aIsErrorQuery)

    {

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::GetQueryAttributesLC"));

    HBufC* stringHolder = NULL; // The text for the query

    aIsCancelKey = EFalse;

    aIsErrorQuery = EFalse;

    switch (iQueryType)

        {

        case EUSBStorageMediaFailure:

            {

            stringHolder = StringLoader::LoadLC( R_USB_STORAGE_MEDIA_FAILURE );

            aCoverDialogId = EUSBCoverStorageMediaFailure;

            break;

            }

        case EUSBChangeFromMassStorage:

            {

            aIsCancelKey = ETrue;

            aCoverDialogId = EUSBCoverChangeFromMassStorage;

            break;

            }

        case EUSBNoMemoryCard:

            {

            stringHolder = StringLoader::LoadLC( R_USB_NO_MEMORY_CARD );

            aCoverDialogId = EUSBCoverNoMemoryCard;

            break;

            } 

        case EUSBNotEnoughRam:

          	{

            FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::EUSBNotEnoughRam"));

            stringHolder = StringLoader::LoadLC( R_USB_ERROR_MEMORY_NOT_ENOUGH );

            aCoverDialogId = EUSBCoverNoMemoryCard;

            //set flag to change the icon of querydialog (see QueryUserResponseL())

            aIsErrorQuery = ETrue;

            break;

            }

        default:

            {

            }

        }

    FLOG(_L("[USBUINOTIF]\t CUSBUIQueriesNotifier::GetQueryAttributesLC completed"));

    return stringHolder;

    }

// End of File