/*

* Copyright (c) 2002-2006 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:  ?Description

*

*/

#include <AknQueryDialog.h>

#include <aknnotewrappers.h>

#include <commondialogs.rsg>

#include <aknmemorycarddialog.h>

#include <pathinfo.h> //PathInfo

#include <e32property.h>

#include "CAknMemorySelectionEventHandler.h"

#include "CAknMemorySelectionDialog.h"

#include "MAknMemorySelectionObserver.h"

#include "maknmemoryselectiondriveobserver.h"

#include "maknmemoryselectionmodel.h"

//#include "CAknMemorySelectionModel.h"

#include "AknCFDUtility.h"

// CActiveDriveMonitor for monitoring drive adding or removing.

NONSHARABLE_CLASS(CActiveDriveMonitor) : public CActive,

                                         public MAknMemoryCardDialogObserver

    {

public:

    /**

     * Implement this method to be notified when the memory card

     * unlock operation is complete. aResult contains the result

     * of the unlock operation:-

     *

     * - KErrNone on success

     * - KErrCancel if the dialog has been canceled

     * - Any other standard system error codes, see SDK for details

     */

    void UnlockComplete(TInt aResult)

        {

        iRet = aResult;

        if ( iWait.IsStarted() )

            {

            iWait.AsyncStop();

            }

        }

    void Start()

        {

        iRet = 0;

        iWait.Start();

        }

    CActiveDriveMonitor( MAknMemorySelectionModel* aModel );

    ~CActiveDriveMonitor()

        {

        Cancel();

        delete iDptr; // cancels request if still active

        CAknEnv::StopSchedulerWaitWithBusyMessage(iWait);

        }

    /**

     * Start ActiveObject to listen if a drive is added/removed.

     */

    void StartMonitoring(

        MAknMemorySelectionDriveObserver* aObserver );

    TBool IsStarted() const

        {

        return iWait.IsStarted();

        }

private:

    /**

     * Sets file system event

     * @since s60 5.0

     */

    void Setup();

protected:

// from base class CActive

    /**

     * From CActive

     */

    void RunL();

    /**

     * From CActive

     */

    void DoCancel();

public: // Data

    CAknMemoryCardDialog* iDptr;

    CActiveSchedulerWait iWait;

    TInt iRet;

    // Ref: Model

    MAknMemorySelectionModel* iModel;

    // Ref: object needed to be notified about drive insertion/deletion

    MAknMemorySelectionDriveObserver* iObserver; // not own

    };

// CActiveRemotePropertySubscriber for listening if remote drive is connected.

NONSHARABLE_CLASS(CActiveRemotePropertySubscriber) : public CActive

    {

public:

    /**

     * NewL function

     */

    static CActiveRemotePropertySubscriber* NewL(

        MAknMemorySelectionModel* aModel );

    /**

     * Destructor

     */

    ~CActiveRemotePropertySubscriber()

        {

        Cancel();

        iProperty.Close();

        }

    /**

     * Start ActiveObject to listen if remote drive is connected.

     */

    void Subscribe( MAknMemorySelectionDriveObserver* aObserver );

protected:

// from base class CActive

    /**

     * From CActive

     */

    void RunL();

    /**

     * From CActive

     */

    void DoCancel();

private:

    /**

     * C++ Constructor.

     */

    CActiveRemotePropertySubscriber( MAknMemorySelectionModel* aModel );

    /**

     * ConstructL function

     */

    void ConstructL();

    /**

     * Start ActiveObject

     */

    void Setup();

private: // Data

    // Ref: Model

    MAknMemorySelectionModel* iModel;

    // Ref: object needed to be notified

    //      about remote drive connection/disconnection

    MAknMemorySelectionDriveObserver* iObserver; // not own

    // Own: PS handle

    RProperty iProperty;

    };

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

// CActiveDriveMonitor

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

// C++ constructor

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

//

CActiveDriveMonitor::CActiveDriveMonitor( MAknMemorySelectionModel* aModel )

    :CActive( EPriorityStandard ),

     iModel( aModel )

    {

    CActiveScheduler::Add( this );

    }

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

// CActiveDriveMonitor::StartMonitoring

//

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

//

void CActiveDriveMonitor::StartMonitoring(

        MAknMemorySelectionDriveObserver* aObserver )

    {

    iObserver = aObserver;

    Setup();

    }

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

// CActiveDriveMonitor::Setup

//

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

//

void CActiveDriveMonitor::Setup()

    {

    if ( !IsActive() )

        {

        CEikonEnv::Static()->FsSession().NotifyChange( ENotifyDisk, iStatus );

        SetActive();

        }

    }

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

// CActiveDriveMonitor::RunL

//

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

//

void CActiveDriveMonitor::RunL()

    {

    TInt status = iStatus.Int();

    Setup();

    if ( ( status == KErrNone ) && ( iObserver != NULL ) )

        {

        // Update data arrays in model

        iModel->UpdateDataArraysL();

        // Update memory names in model

        iModel->UpdateItemsL();

        // Notify observer memory card insertion

        iObserver->NotifyDrivesChangedL( iModel );

        }

    }

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

// CActiveDriveMonitor::DoCancel

//

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

//

void CActiveDriveMonitor::DoCancel()

    {

    CEikonEnv::Static()->FsSession().NotifyChangeCancel();

    iObserver = NULL;

    }

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

// CActiveRemotePropertySubscriber

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

// CActiveRemotePropertySubscriber::NewL

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

//

CActiveRemotePropertySubscriber* CActiveRemotePropertySubscriber::NewL(

    MAknMemorySelectionModel* aModel )

    {

    CActiveRemotePropertySubscriber* self =

        new ( ELeave ) CActiveRemotePropertySubscriber( aModel );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CActiveRemotePropertySubscriber::Subscribe

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

//

void CActiveRemotePropertySubscriber::Subscribe(

        MAknMemorySelectionDriveObserver* aObserver )

    {

    iObserver = aObserver;

    Setup();

    }

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

// CActiveRemotePropertySubscriber::Setup

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

//

void CActiveRemotePropertySubscriber::Setup()

    {

    if ( !IsActive() )

        {

        iProperty.Subscribe( iStatus );

        SetActive();

        }

    }

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

// C++ constructor

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

//

CActiveRemotePropertySubscriber::CActiveRemotePropertySubscriber(

    MAknMemorySelectionModel* aModel )

    :CActive( EPriorityStandard ),

     iModel( aModel )

    {

    }

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

// CActiveRemotePropertySubscriber::ConstructL

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

//

void CActiveRemotePropertySubscriber::ConstructL()

    {

    CActiveScheduler::Add(this);

    }

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

// CActiveRemotePropertySubscriber::RunL

//

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

//

void CActiveRemotePropertySubscriber::RunL()

    {

    TInt statusValue = iStatus.Int();

    Setup();

    if ( ( statusValue == KErrNone ) && ( iObserver != NULL ) )

        {

        // Update memory names in model

        iModel->UpdateItemsL();

        // Notify observer memory card insertion

        iObserver->NotifyDrivesChangedL( iModel );

        }

    }

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

// CActiveRemotePropertySubscriber::DoCancel

//

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

//

void CActiveRemotePropertySubscriber::DoCancel()

    {

    iProperty.Cancel();

    iObserver = NULL;

    }

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

// CAknMemorySelectionEventHandler

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

// CAknMemorySelectionEventHandler::CAknMemorySelectionEventHandler

//

//

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

//

CAknMemorySelectionEventHandler::CAknMemorySelectionEventHandler(

    CCoeEnv* aCoeEnv,

    MAknMemorySelectionModel* aModel,

    MAknMemorySelectionObserver* aObserver )

    :   iCoeEnv( aCoeEnv ),

        iModel( aModel ),

        iObserver( aObserver ),

        iCanceledAllActions( EFalse )

    {

    }

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

// CAknMemorySelectionEventHandler::ConstructL

//

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

//

void CAknMemorySelectionEventHandler::ConstructL()

    {

    iDriveMonitor = new ( ELeave ) CActiveDriveMonitor( iModel );

    iRemotePropertySubscriber = CActiveRemotePropertySubscriber::NewL( iModel );

    }

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

// CAknMemorySelectionEventHandler::NewL

//

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

//

CAknMemorySelectionEventHandler* CAknMemorySelectionEventHandler::NewL(

    CCoeEnv* aCoeEnv,

    MAknMemorySelectionModel* aModel,

    MAknMemorySelectionObserver* aObserver )

    {

    CAknMemorySelectionEventHandler* self =

        new( ELeave ) CAknMemorySelectionEventHandler(

            aCoeEnv, aModel, aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CAknMemorySelectionEventHandler::~CAknMemorySelectionEventHandler()

    {

    if( iDriveMonitor )

        {

        iDriveMonitor->Cancel();

        delete iDriveMonitor;

        iDriveMonitor = NULL;

        }

    if ( iRemotePropertySubscriber )

        {

        iRemotePropertySubscriber->Cancel();

        delete iRemotePropertySubscriber;

        iRemotePropertySubscriber = NULL;

        }

    }

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

// CAknMemorySelectionEventHandler::ShowSimplePwdQueryL

//

//

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

//

TInt CAknMemorySelectionEventHandler::ShowSimplePwdQueryL( TDes& aPwd, TInt aResourceId ) const

    {

    HBufC* dlgText = iCoeEnv->AllocReadResourceLC( aResourceId );

    CAknTextQueryDialog* pwdDlg = CAknTextQueryDialog::NewL( aPwd );

    TInt ret( pwdDlg->ExecuteLD( R_CFD_PASSWORD_QUERY_DIALOG, *dlgText ) );

    CleanupStack::PopAndDestroy( ); // dlgText

    return ret;

    }

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

// CAknMemorySelectionEventHandler::ConvertCharsToPwd

//

//

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

//

void CAknMemorySelectionEventHandler::ConvertCharsToPwd( TDesC& aWord, TDes8& aConverted ) const

    {

    // Make sure the target password is empty

    aConverted.FillZ( aConverted.MaxLength() );

    aConverted.Zero();

    if( aWord.Length() )

        {

        // Copy the pwd as raw data

        aConverted.Copy( ( TUint8* ) ( &aWord[ 0 ] ), aWord.Size() );

        }

    }

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

// CAknMemorySelectionEventHandler::UnlockMMC

//

//

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

//

TBool CAknMemorySelectionEventHandler::UnlockMMC( TMediaPassword& aPswd ) const

    {

    // This functions is not used, so why put it here?

    RFs& fs = iCoeEnv->FsSession();

    return fs.UnlockDrive( EDriveE, aPswd, ETrue ) == KErrNone;

    }

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

// CAknMemorySelectionEventHandler::TryToUnlockDriveL

//

//

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

//

TBool CAknMemorySelectionEventHandler::TryToUnlockDriveL(

    TDriveNumber aDrive )

    {

    iDriveMonitor->iDptr = CAknMemoryCardDialog::NewLC( iDriveMonitor );

    iDriveMonitor->iDptr->SetSelfPointer( &( iDriveMonitor->iDptr ) );

    iDriveMonitor->iDptr->UnlockCardLD( aDrive, ETrue );

    iDriveMonitor->Start();

    iDriveMonitor->iDptr = NULL;

    return (iDriveMonitor->iRet == KErrNone);

    }

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

// CAknMemorySelectionEventHandler::HandleEventL

//

//

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

//

MAknCommonDialogsEventObserver::TAction

    CAknMemorySelectionEventHandler::HandleEventL(

        TEvent aEvent,

        TInt& aFocusedItemIndex,

        TInt& /* aTopItemIndex */,

        CEikButtonGroupContainer* aContainer )

    {

    if ( aEvent == ECancelAllActions )

        {

        iCanceledAllActions = ETrue;

        if ( iDriveMonitor->iDptr )

            {

            delete iDriveMonitor->iDptr; // eventually stops the activeschedulerwait

            iDriveMonitor->iDptr = NULL;

            return MAknCommonDialogsEventObserver::ECanceled;

            }

        else

            {

            return MAknCommonDialogsEventObserver::EDidNothing;

            }

        }

    // Check status of the highlighted drive

    TBuf<KMaxPath> selectedPath;

    iModel->GetDrive( aFocusedItemIndex, selectedPath );

    TDriveNumber driveNumber(

        TDriveNumber( AknCFDUtility::DriveNumber( selectedPath ) ) );

    TCFDDriveStatus driveStatus =

        AknCFDUtility::DriveStatusL( driveNumber );