psmservices/psmserver/src/engine/psmpluginloader.cpp
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     1 /*
       
     2 * Copyright (c) 2007 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:  PSM Plug-in loader
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <ecom/ecom.h>
       
    20 #include <psmpluginbase.h>
       
    21 #include "psmpluginloader.h"
       
    22 #include "psmsrvplugin.h"
       
    23 #include "psmmanager.h"
       
    24 #include "psmtrace.h"
       
    25 
       
    26 // -----------------------------------------------------------------------------
       
    27 // CPsmPluginLoader::NewL
       
    28 // Two-phased constructor.
       
    29 // -----------------------------------------------------------------------------
       
    30 //
       
    31 CPsmPluginLoader* CPsmPluginLoader::NewL( CPsmManager& aManager )
       
    32     {
       
    33     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::NewL()" ) ) );
       
    34 
       
    35     CPsmPluginLoader* self = CPsmPluginLoader::NewLC( aManager );
       
    36     CleanupStack::Pop( self );
       
    37 
       
    38     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::NewL - return 0x%x" ), self ) );
       
    39 
       
    40     return self;
       
    41     }
       
    42 
       
    43 // -----------------------------------------------------------------------------
       
    44 // CPsmPluginLoader::NewLC
       
    45 // Two-phased constructor.
       
    46 // -----------------------------------------------------------------------------
       
    47 //
       
    48 CPsmPluginLoader* CPsmPluginLoader::NewLC( CPsmManager& aManager )
       
    49     {
       
    50     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::NewLC()" ) ) );
       
    51 
       
    52     CPsmPluginLoader* self = new( ELeave ) CPsmPluginLoader( aManager );
       
    53 
       
    54     CleanupStack::PushL( self );
       
    55     self->ConstructL();
       
    56 
       
    57     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::NewLC - return 0x%x" ), self ) );
       
    58 
       
    59     return self;
       
    60     }
       
    61 
       
    62 // -----------------------------------------------------------------------------
       
    63 // CPsmPluginLoader::CPsmPluginLoader
       
    64 // C++ default constructor can NOT contain any code, that
       
    65 // might leave.
       
    66 // -----------------------------------------------------------------------------
       
    67 //
       
    68 CPsmPluginLoader::CPsmPluginLoader( CPsmManager& aManager ) :
       
    69     iManager( aManager )
       
    70     {
       
    71     // Nothing to do
       
    72     }
       
    73 
       
    74 // -----------------------------------------------------------------------------
       
    75 // CPsmPluginLoader::ConstructL
       
    76 // Symbian 2nd phase constructor can leave.
       
    77 // -----------------------------------------------------------------------------
       
    78 //
       
    79 void CPsmPluginLoader::ConstructL()
       
    80     {
       
    81     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::ConstructL()" ) ) );
       
    82     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::ConstructL - return" ) ) );
       
    83     }
       
    84 
       
    85 // -----------------------------------------------------------------------------
       
    86 // Destructor
       
    87 // -----------------------------------------------------------------------------
       
    88 //
       
    89 CPsmPluginLoader::~CPsmPluginLoader()
       
    90     {
       
    91     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::~CPsmPluginLoader()" ) ) );
       
    92 
       
    93     iPluginArray.ResetAndDestroy();
       
    94 
       
    95     REComSession::FinalClose();
       
    96 
       
    97     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::~CPsmPluginLoader - return") ) );
       
    98     }
       
    99 
       
   100 // -----------------------------------------------------------------------------
       
   101 // CPsmPluginLoader::InitializePluginsL
       
   102 // -----------------------------------------------------------------------------
       
   103 //
       
   104 static void ResetAndDestroyArray( TAny* aPtr )
       
   105     {
       
   106     RImplInfoPtrArray* array = static_cast< RImplInfoPtrArray* >( aPtr );
       
   107     array->ResetAndDestroy();
       
   108     array->Close();
       
   109     }
       
   110 
       
   111 // -----------------------------------------------------------------------------
       
   112 // CPsmPluginLoader::InitializePluginsL
       
   113 // -----------------------------------------------------------------------------
       
   114 //
       
   115 void CPsmPluginLoader::InitializePluginsL()
       
   116     {
       
   117     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::InitializePluginsL()" ) ) );
       
   118 
       
   119     // List implementations
       
   120     RImplInfoPtrArray implInfoArray;
       
   121     TCleanupItem cleanupItem( ResetAndDestroyArray, &implInfoArray );
       
   122     CleanupStack::PushL( cleanupItem );
       
   123     
       
   124     REComSession::ListImplementationsL( KPsmPluginControlInterfaceUid, implInfoArray );
       
   125 
       
   126     // Get number of implementations
       
   127     const TInt pluginCount( implInfoArray.Count() );
       
   128 
       
   129     // Loop implementation info and create instances
       
   130     for ( TInt i = 0; i < pluginCount; i++ )
       
   131         {
       
   132         // Get next implementation info
       
   133         CImplementationInformation* info = 
       
   134             static_cast<CImplementationInformation*>( implInfoArray[i] );
       
   135             
       
   136         COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::InitializePluginsL - create plugin 0x%x started" ),
       
   137             info->ImplementationUid().iUid) );
       
   138 
       
   139         // Create new instance of the plugin
       
   140         CPsmSrvPlugin* plugin = NULL;
       
   141         TRAPD(err, plugin = CPsmSrvPlugin::NewL( iManager, info->ImplementationUid() ));
       
   142         if( err == KErrNone )
       
   143             {
       
   144             // Add plugin to array
       
   145             CleanupStack::PushL( plugin );
       
   146             User::LeaveIfError( iPluginArray.Append( plugin ) );
       
   147             CleanupStack::Pop( plugin );
       
   148             }
       
   149         COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::InitializePluginsL - create plugin 0x%x ended with code %d" ),
       
   150             info->ImplementationUid().iUid, err ) );
       
   151         }
       
   152 
       
   153     // Reset and destroy implementations infos
       
   154     CleanupStack::PopAndDestroy(&implInfoArray);
       
   155 
       
   156     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::InitializePluginsL - return plugin count: %d" ), pluginCount ) );
       
   157     }
       
   158 
       
   159 // -----------------------------------------------------------------------------
       
   160 // CPsmPluginLoader::NotifyPlugins
       
   161 // -----------------------------------------------------------------------------
       
   162 //
       
   163 void CPsmPluginLoader::NotifyPlugins()
       
   164     {
       
   165     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::NotifyPlugins()" ) ) );
       
   166 
       
   167     // Current mode
       
   168     const TPsmsrvMode mode( iManager.SettingsProvider().Mode() );
       
   169 
       
   170     // Loop plugins and notify
       
   171     for ( TInt i = 0; i < iPluginArray.Count(); i++ )
       
   172         {
       
   173         iPluginArray[ i ]->NotifyModeChange( mode );
       
   174         }
       
   175 
       
   176     COMPONENT_TRACE( ( _L( "PSM Server - CPsmPluginLoader::NotifyPlugins - return" ) ) );
       
   177     }
       
   178 
       
   179 // End of file