/*

* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Supports registration of UI Lib modules.

*

*/

// INCLUDE FILES

#include    "DMgrUiLibPanic.h"

#include    "UiLibLogger.h"

/**

* Extension class.

* 

* This class also acts a common exit observer when UILib is used. It is used not only for 

* deciding if an embedded handler application is runnong or not, but also for indicating 

* if eg. a COD Service Flow is running.

*/

NONSHARABLE_CLASS( CUiLibRegistryExtension ) : public CBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CUiLibRegistryExtension* NewL

             ( CDownloadMgrUiLibRegistry& aRegistry );

        /**

        * Destructor.

        */

        virtual ~CUiLibRegistryExtension();

    protected: // Constructors

        /**

        * C++ default constructor.

        */

        CUiLibRegistryExtension( CDownloadMgrUiLibRegistry& aRegistry );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private: // Data

        CDownloadMgrUiLibRegistry& iRegistry;

    };

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

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

// CUiLibRegistryExtension::CUiLibRegistryExtension

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

//

CUiLibRegistryExtension::CUiLibRegistryExtension

    ( CDownloadMgrUiLibRegistry& aRegistry ) 

:   iRegistry( aRegistry )

    {

    }

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

// CUiLibRegistryExtension::ConstructL

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

//

void CUiLibRegistryExtension::ConstructL()

    {

    CLOG_ENTERFN("CUiLibRegistryExtension::ConstructL");

    CLOG_LEAVEFN("CUiLibRegistryExtension::ConstructL");

    }

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

// CUiLibRegistryExtension::NewL

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

//

CUiLibRegistryExtension* CUiLibRegistryExtension::NewL

    ( CDownloadMgrUiLibRegistry& aRegistry )

    {

    CUiLibRegistryExtension* self = 

        new (ELeave) CUiLibRegistryExtension( aRegistry );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CUiLibRegistryExtension::~CUiLibRegistryExtension()

    {

    CLOG_ENTERFN("CUiLibRegistryExtension::~CUiLibRegistryExtension");

    CLOG_LEAVEFN("CUiLibRegistryExtension::~CUiLibRegistryExtension");

    }

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

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

// CDownloadMgrUiLibRegistry::CDownloadMgrUiLibRegistry

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

//

CDownloadMgrUiLibRegistry::CDownloadMgrUiLibRegistry( RHttpDownloadMgr& aDownloadMgr )

:   iDownloadMgr( aDownloadMgr )

    {

    }

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

// CDownloadMgrUiLibRegistry::ConstructL

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

//

void CDownloadMgrUiLibRegistry::ConstructL()

    {

    // Create the log file

    LOG_CREATE;

    iExtension = CUiLibRegistryExtension::NewL( *this );

    //////////////////////

    // EDlMgrAppUid

    TInt32 appUid( 0 );

    User::LeaveIfError( iDownloadMgr.GetIntAttribute( EDlMgrAppUid, appUid ) );

    iClientAppUid = TUid::Uid( (TInt)appUid );

    }

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

// CDownloadMgrUiLibRegistry::NewL

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

//

EXPORT_C 

CDownloadMgrUiLibRegistry* CDownloadMgrUiLibRegistry::NewL( RHttpDownloadMgr& aDownloadMgr )

    {

    CDownloadMgrUiLibRegistry* self = 

        new ( ELeave ) CDownloadMgrUiLibRegistry( aDownloadMgr );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

EXPORT_C 

CDownloadMgrUiLibRegistry::~CDownloadMgrUiLibRegistry()

    {

    CLOG_ENTERFN("CDownloadMgrUiLibRegistry::~CDownloadMgrUiLibRegistry");

    RemoveUiComponentsAsObservers();

    //

    delete iUserInteractions;

    iUserInteractions = 0;

    CLOG_WRITE("iUserInteractions deleted");

    delete iDownloadsList;

    iDownloadsList = 0;

    CLOG_WRITE("iDownloadsList deleted");

    delete iExtension;

    iExtension = 0;

    CLOG_LEAVEFN("CDownloadMgrUiLibRegistry::~CDownloadMgrUiLibRegistry");

    }

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

// CDownloadMgrUiLibRegistry::RegisterUserInteractionsL

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

//

EXPORT_C 

CDownloadMgrUiUserInteractions& CDownloadMgrUiLibRegistry::RegisterUserInteractionsL()

    {

    CLOG_ENTERFN("CDownloadMgrUiLibRegistry::RegisterUserInteractionsL");

    __ASSERT_ALWAYS( iUserInteractions == NULL, Panic( EUiLibPanNotNull ) );

    iUserInteractions = CDownloadMgrUiUserInteractions::NewL( *this );

    // Register UI component as observer if not done yet

    TRAPD( err, SetUiComponentsAsObserversL() );

        if ( err )

            {

            CLOG_WRITE_FORMAT(" err: %d", err);

            RemoveUiComponentsAsObservers();

            User::Leave( err );

            }

    CLOG_LEAVEFN("CDownloadMgrUiLibRegistry::RegisterUserInteractionsL");

    return *iUserInteractions;

    }

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

// CDownloadMgrUiLibRegistry::RegisterDownloadsListL

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

//

EXPORT_C 

CDownloadMgrUiDownloadsList& CDownloadMgrUiLibRegistry::RegisterDownloadsListL()

    {

    CLOG_ENTERFN("CDownloadMgrUiLibRegistry::RegisterDownloadsListL");

    __ASSERT_ALWAYS( iDownloadsList == NULL, Panic( EUiLibPanNotNull ) );

    iDownloadsList = CDownloadMgrUiDownloadsList::NewL( *this );

    // Register UI component as observer if not done yet

    TRAPD( err, SetUiComponentsAsObserversL() );

        if ( err )

            {

            CLOG_WRITE_FORMAT(" err: %d", err);

            RemoveUiComponentsAsObservers();

            User::Leave( err );

            }

    CLOG_LEAVEFN("CDownloadMgrUiLibRegistry::RegisterDownloadsListL");

    return *iDownloadsList;

    }

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

// CDownloadMgrUiLibRegistry::ClientAppUid

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

//

TUid CDownloadMgrUiLibRegistry::ClientAppUid() const

    {

    CLOG_WRITE_FORMAT("iClientAppUid: %d", iClientAppUid);

    return (iClientAppUid);

    }

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

// CDownloadMgrUiLibRegistry::DownloadsListInstalled

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

//

TBool CDownloadMgrUiLibRegistry::DownloadsListInstalled() const

    {

    CLOG_WRITE_FORMAT("DownloadsListInstalled: %x", iDownloadsList);

    return (iDownloadsList!=NULL);

    }

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

// CDownloadMgrUiLibRegistry::DownloadsList

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

//

CDownloadMgrUiDownloadsList& CDownloadMgrUiLibRegistry::DownloadsList() const

    {

    __ASSERT_DEBUG( iDownloadsList, Panic( EUiLibPanNull ) );

    return (*iDownloadsList);

    }

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

// CDownloadMgrUiLibRegistry::UserInteractionsInstalled

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

//

TBool CDownloadMgrUiLibRegistry::UserInteractionsInstalled() const

    {

    CLOG_WRITE_FORMAT("UserInteractionsInstalled: %x", iUserInteractions);

    return (iUserInteractions!=NULL);

    }

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

// CDownloadMgrUiLibRegistry::UserInteractions

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

//

CDownloadMgrUiUserInteractions& CDownloadMgrUiLibRegistry::UserInteractions() const

    {

    __ASSERT_DEBUG( iUserInteractions, Panic( EUiLibPanNull ) );

    return (*iUserInteractions);

    }

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

// CDownloadMgrUiLibRegistry::DownloadMgr

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

//

RHttpDownloadMgr& CDownloadMgrUiLibRegistry::DownloadMgr() const

    {

    CLOG_WRITE_FORMAT("DownloadMgr: %x", &iDownloadMgr);

    return (iDownloadMgr);

    }

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

// CDownloadMgrUiLibRegistry::DownloadCount

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

//

TInt CDownloadMgrUiLibRegistry::DownloadCount() const

    {

    return (iDownloadMgr.CurrentDownloads().Count());

    }

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

// CDownloadMgrUiLibRegistry::SetUiComponentsAsObserversL

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

//

void CDownloadMgrUiLibRegistry::SetUiComponentsAsObserversL()

    {

    if ( iUserInteractions )

        {

        CLOG_WRITE(" AddObserverL iUserInteractions ...");

        iDownloadMgr.AddObserverL( *iUserInteractions );

        CLOG_WRITE(" AddObserverL iUserInteractions OK");

        }

    if ( iDownloadsList )

        {

        CLOG_WRITE(" AddObserverL iDownloadsList ...");

        iDownloadMgr.AddObserverL( *iDownloadsList );

        CLOG_WRITE(" AddObserverL iDownloadsList OK");

        }

    }

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

// CDownloadMgrUiLibRegistry::RemoveUiComponentsAsObservers

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

//

void CDownloadMgrUiLibRegistry::RemoveUiComponentsAsObservers()

    {

    if ( iUserInteractions )

        {

        CLOG_WRITE(" RemoveObserver iUserInteractions ...");

        iDownloadMgr.RemoveObserver( *iUserInteractions );

        CLOG_WRITE(" RemoveObserver iUserInteractions OK");

        }

    if ( iDownloadsList )

        {

        CLOG_WRITE(" RemoveObserver iDownloadsList ...");

        iDownloadMgr.RemoveObserver( *iDownloadsList );

        CLOG_WRITE(" RemoveObserver iDownloadsList OK");

        }

    }

// End of file.