1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:    Message sending component for MPX views.*

    15 */

    16 

    17 

    18 

    19 

    20 #include "IptvDebug.h"

    21 

    22 #include "vcxviewmessageutility.h"

    23 #include "vcxviewmessageutility.hrh"

    24 

    25 // Each CCoeStatic object must have a unique TUid, let's use dll uid

    26 const TUid KVcxViewMessageUtilitySingletonUid = { KVcxViewMessageUtilityDllUid };

    27 

    28 // Negative priority destroys this singleton after AppUi is destroyed.

    29 // This way all views can remove observers before this object is destroyed.

    30 const TInt KVcxSingletonDestructionPriority( -1 );

    31 

    32 // ---------------------------------------------------------------------------

    33 // Static function that initializes the singleton object

    34 // ---------------------------------------------------------------------------

    35 //

    36 EXPORT_C CVcxViewMessageUtility* CVcxViewMessageUtility::InstanceL()

    37     {

    38     IPTVLOGSTRING_LOW_LEVEL("CVcxViewMessageUtility::InstanceL"); 

    39     // Ownership of the object remains with CCoeEnv

    40     CVcxViewMessageUtility* instance = static_cast<CVcxViewMessageUtility*>( 

    41         CCoeEnv::Static( KVcxViewMessageUtilitySingletonUid ) );

    42     

    43     if ( !instance )

    44         {

    45         IPTVLOGSTRING_LOW_LEVEL("CVcxViewMessageUtility::InstanceL - Creating object"); 

    46         instance = new( ELeave ) CVcxViewMessageUtility();

    47         }

    48     return instance;

    49     }

    50 

    51 // ---------------------------------------------------------------------------

    52 // Destructor

    53 // ---------------------------------------------------------------------------

    54 //

    55 EXPORT_C CVcxViewMessageUtility::~CVcxViewMessageUtility()

    56     {

    57     IPTVLOGSTRING_LOW_LEVEL("CVcxViewMessageUtility destructor"); 

    58     iObservers.Close();

    59     }

    60 

    61 // ---------------------------------------------------------------------------

    62 // Constructor

    63 // ---------------------------------------------------------------------------

    64 //

    65 CVcxViewMessageUtility::CVcxViewMessageUtility() :

    66         CCoeStatic( KVcxViewMessageUtilitySingletonUid, 

    67                     KVcxSingletonDestructionPriority )

    68     {

    69     }

    70 

    71 // -----------------------------------------------------------------------------

    72 // Adds observer

    73 // -----------------------------------------------------------------------------

    74 //

    75 EXPORT_C void CVcxViewMessageUtility::AddObserverL( MVcxViewMessageObserver& aObserver )

    76     {

    77     IPTVLOGSTRING2_LOW_LEVEL("CVcxViewMessageUtility::AddObserverL - Adding %X", &aObserver); 

    78     TInt errorCode = KErrNoMemory;

    79     MtvObserverUtils::AddObserverL(iObservers, aObserver, errorCode);

    80     }

    81 

    82 // -----------------------------------------------------------------------------

    83 // Removes observer

    84 // -----------------------------------------------------------------------------

    85 //

    86 EXPORT_C void CVcxViewMessageUtility::RemoveObserver( MVcxViewMessageObserver& aObserver )

    87     {

    88     MtvObserverUtils::RemoveObserver(iObservers, aObserver );       

    89     }

    90 

    91 // -----------------------------------------------------------------------------

    92 // Forwards messages to views

    93 // -----------------------------------------------------------------------------

    94 //

    95 EXPORT_C void CVcxViewMessageUtility::SendCustomViewMessageL( 

    96         const TUid aMessageUid, const TDesC8 &aCustomMessage )

    97     {

    98     IPTVLOGSTRING2_LOW_LEVEL("CVcxViewMessageUtility::SendCustomViewMessageL Uid=%d", aMessageUid.iUid); 

    99     // Send the same message to all observers.

   100     TInt err( KErrNone );

   101     RUN_NOTIFY_LOOP_L( HandleCustomViewMessageL( aMessageUid, aCustomMessage ), iObservers, err );

   102     User::LeaveIfError( err );

   103     }

   104