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 "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: 

    15 *

    16 */

    17 

    18 

    19 #include <gsplugininterface.h>

    20 #include "GSEComNotifier.h"

    21 #include "GsLogger.h"

    22 

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

    24 

    25 

    26 // ---------------------------------------------------------------------------

    27 //

    28 // ---------------------------------------------------------------------------

    29 //

    30 CGSEComNotifier::CGSEComNotifier( MGSEComObserver* aObserver,

    31                                   RImplInfoPtrArray aImplInfo )

    32     : CActive( EPriorityStandard ),

    33       iObserver( aObserver ),

    34       iOriginalImplInfo( aImplInfo )

    35     {

    36     CActiveScheduler::Add( this );

    37     }

    38 

    39 

    40 // ---------------------------------------------------------------------------

    41 //

    42 // ---------------------------------------------------------------------------

    43 //

    44 void CGSEComNotifier::ConstructL()

    45     {

    46     iEComSession = REComSession::OpenL();

    47     IssueRequest();

    48     }

    49 

    50 

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

    52 //

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

    54 //

    55 EXPORT_C CGSEComNotifier* CGSEComNotifier::NewL( MGSEComObserver* aObserver,

    56                                                  RImplInfoPtrArray aImplInfo )

    57     {

    58     CGSEComNotifier* self = new( ELeave ) CGSEComNotifier(

    59         aObserver,

    60         aImplInfo );

    61 

    62     CleanupStack::PushL( self );

    63     self->ConstructL();

    64     CleanupStack::Pop( self );

    65     return self;

    66     }

    67 

    68 

    69 // ---------------------------------------------------------------------------

    70 //

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

    72 //

    73 EXPORT_C CGSEComNotifier::~CGSEComNotifier()

    74     {

    75     Cancel();

    76     iEComSession.Close();

    77     }

    78 

    79 

    80 // ---------------------------------------------------------------------------

    81 // See base class.

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

    83 //

    84 void CGSEComNotifier::DoCancel()

    85     {

    86     iEComSession.CancelNotifyOnChange( iStatus );

    87     }

    88 

    89 

    90 // ---------------------------------------------------------------------------

    91 // See base class.

    92 // ---------------------------------------------------------------------------

    93 //

    94 void CGSEComNotifier::RunL()

    95     {

    96     __GSLOGSTRING1( "[CGSEComNotifier::RunL] iStatus:%d", iStatus );

    97 

    98     if( PluginCountDeltaL() < 0 )

    99         {

   100         iObserver->HandleEComEvent( MGSEComObserver::EPluginRemoved );

   101         }

   102 

   103     IssueRequest();

   104 

   105     __GSLOGSTRING1( "[CGSEComNotifier::RunL] iStatus:%d", iStatus );

   106     }

   107 

   108 

   109 // ---------------------------------------------------------------------------

   110 // See base class.

   111 // ---------------------------------------------------------------------------

   112 //

   113 TInt CGSEComNotifier::RunError( TInt aError )

   114     {

   115     __GSLOGSTRING2(

   116         "[CGSEComNotifier::RunError] aError:%d iStatus:%d",

   117         aError, iStatus );

   118 

   119     // Special case: Application can throw KLeaveExit basically anytime so we

   120     // have to forward it upwards to app framework.

   121     if( aError == KLeaveExit )

   122         {

   123         return aError;

   124         }

   125     return KErrNone;

   126     }

   127 

   128 

   129 // ---------------------------------------------------------------------------

   130 //

   131 // ---------------------------------------------------------------------------

   132 //

   133 void CGSEComNotifier::IssueRequest()

   134     {

   135     if( !IsActive() )

   136         {

   137         // NotifyOnChange is single shot.

   138         iEComSession.NotifyOnChange( iStatus );

   139         SetActive();

   140         }

   141     }

   142 

   143 

   144 // ---------------------------------------------------------------------------

   145 //

   146 // ---------------------------------------------------------------------------

   147 //

   148 TInt CGSEComNotifier::PluginCountDeltaL()

   149     {

   150     // Owned

   151     RImplInfoPtrArray newImplInfo;

   152 

   153     REComSession::ListImplementationsL(

   154         KGSPluginInterfaceUid,

   155         newImplInfo );

   156 

   157     TInt oldInfoCount = iOriginalImplInfo.Count();

   158     TInt newInfoCount = newImplInfo.Count();

   159 

   160     __GSLOGSTRING2(

   161         "[CGSEComNotifier::PluginCountDeltaL] iOriginalImplInfo:%d newImplInfo:%d",

   162         oldInfoCount, newInfoCount );

   163 

   164     newImplInfo.ResetAndDestroy();

   165     newImplInfo.Close();

   166 

   167     // Count the delta between old and current infos:

   168     return newInfoCount - oldInfoCount;

   169     }

   170 

   171 

   172 // End of File