/*

* Copyright (c) 2010 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: Class for managing user notification and query objects, 

* and for serializing access to the notification server.

*

*/

#include "btnotificationmanager.h"

#include "btnotifserver.h"

#include "bluetoothnotification.h"

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

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

// C++ default constructor

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

//

CBTNotificationManager::CBTNotificationManager( const CBTNotifServer* aServer )

:   iServer( aServer )

    {

    }

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

// Symbian 2nd-phase constructor

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

//

void CBTNotificationManager::ConstructL()

    {

    }

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

// NewL.

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

//

CBTNotificationManager* CBTNotificationManager::NewL( const CBTNotifServer* aServer )

    {

    CBTNotificationManager* self = new( ELeave ) CBTNotificationManager( aServer );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor

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

//

CBTNotificationManager::~CBTNotificationManager()

    {

    BOstraceFunctionEntry0( DUMMY_DEVLIST );

    iNotificationQ.ResetAndDestroy();

    iNotificationQ.Close();

    BOstraceFunctionExit0( DUMMY_DEVLIST );

    }

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

// Get a new notification

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

//

CBluetoothNotification* CBTNotificationManager::GetNotification()

    {

    BOstraceFunctionEntry0( DUMMY_DEVLIST );

    CBluetoothNotification* notification = NULL;

    TRAP_IGNORE( notification = CBluetoothNotification::NewL( this ) );

    if( notification )

        {

        if( iNotificationQ.Append( notification ) )

            {

            // In case the appending fails, we just delete the notification.

            // Otherwise we cannot keep track of it anymore.

            delete notification;

            notification = NULL;

            }

        }

    BOstraceFunctionExit0( DUMMY_DEVLIST );

    return notification;

    }

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

// Release the notification

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

//

void CBTNotificationManager::ReleaseNotification( CBluetoothNotification* aNotification )

    {

    BOstraceFunctionEntry0( DUMMY_DEVLIST );

    __ASSERT_ALWAYS( aNotification, PanicServer( EBTNotifPanicBadArgument ) );

    TInt pos = iNotificationQ.Find( aNotification );

    __ASSERT_ALWAYS( pos > KErrNotFound, PanicServer( EBTNotifPanicMissing ) );

    delete iNotificationQ[pos];

    iNotificationQ.Remove( pos );

    iNotificationQ.Compress();

    BOstraceFunctionExit0( DUMMY_DEVLIST );

    }

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

// Queue the notification with given priority

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

//

void CBTNotificationManager::QueueNotificationL(

        CBluetoothNotification* aNotification,

        TNotificationPriority aPriority )

    {

    BOstraceFunctionEntry0( DUMMY_DEVLIST );

    (void) aPriority;

    TInt pos = iNotificationQ.Find( aNotification );

    __ASSERT_ALWAYS( pos > KErrNotFound, PanicServer( EBTNotifPanicMissing ) );

    // Always move the newly added notification on top

    if(pos != 0 )

        {

        CBluetoothNotification* notification = NULL;

        notification = iNotificationQ[pos];

        iNotificationQ.Remove( pos );

        iNotificationQ.InsertL(notification,0);

        }

    ProcessNotificationQueueL();

    BOstraceFunctionExit0( DUMMY_DEVLIST );

    }

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

// Process the notification queue and launch the next notification.

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

//

void CBTNotificationManager::ProcessNotificationQueueL()

    {

    BOstraceFunctionEntry0( DUMMY_DEVLIST );

    if( iNotificationQ.Count() )

        {

        iNotificationQ[0]->ShowL();

        }

    else

        {

        // No outstanding notifications

        iNotificationQ.Compress(); // the queue is empty, reset it.

        }

    BOstraceFunctionExit0( DUMMY_DEVLIST );

    }