--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/musichomescreen/musiccontentpublisher/src/pluginmanager.cpp	Thu Dec 17 08:45:05 2009 +0200
@@ -0,0 +1,250 @@
+/*
+* Copyright (c) 2008-2008 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:  Plugin manager, responsible to load the plugins.
+*
+*/
+
+#include <mpxlog.h>                     // MPX_DEBUG
+#include <ecom/ecom.h>
+// for CeanupResetAndDestroyPushL
+#include <mmf/common/mmfcontrollerpluginresolver.h>
+
+#include "musiccontentpublisher.h"
+#include "pluginmanager.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CPluginManager::CPluginManager( TUid aUid, 
+        TAny* aParameter, 
+        CMusicContentPublisher* aContentPublisher) :
+                CActive( EPriorityStandard ), 
+                iUid( aUid ), 
+                iParameter( aParameter ), 
+                iContentPublisher(aContentPublisher)
+    {
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CPluginManager::ConstructL()
+    {
+    MPX_DEBUG1("CPluginManager::ConstructL <---");
+    iSession = &REComSession::OpenL();
+    LoadPluginsL();
+    iSession->NotifyOnChange( iStatus );
+    CActiveScheduler::Add( this );
+    SetActive();
+    MPX_DEBUG1("CPluginManager::ConstructL --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CPluginManager* CPluginManager::NewL( TUid aUid, 
+        TAny *aParameter, 
+        CMusicContentPublisher* aContentPublisher )
+    {
+    CPluginManager* self = CPluginManager::NewLC( aUid, 
+            aParameter, 
+            aContentPublisher );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CPluginManager* CPluginManager::NewLC( TUid aUid, 
+        TAny *aParameter,
+        CMusicContentPublisher* aContentPublisher )
+    {
+    CPluginManager* self = new( ELeave ) CPluginManager( aUid, 
+            aParameter, 
+            aContentPublisher );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// destructor
+// ---------------------------------------------------------------------------
+CPluginManager::~CPluginManager()
+    {
+    MPX_DEBUG1("CPluginManager::~CPluginManager <---");
+    Cancel();
+    CleanPluginsTable();
+    iPluginMap.Close();
+    if ( iSession )
+        {
+        iSession->Close();
+        }
+    REComSession::FinalClose();
+    MPX_DEBUG1("CPluginManager::~CPluginManager --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Retuns a plugin by UID
+// ---------------------------------------------------------------------------
+//
+TAny* CPluginManager::GetImplementation( TUid aUid )
+    {
+    TInt32 key = aUid.iUid;
+    TAny* ret= NULL;
+    TAny** imp= NULL;
+    imp = iPluginMap.Find( key );
+    if ( imp )
+        {
+        ret = *imp;
+        }
+    return ret;
+    }
+
+// ---------------------------------------------------------------------------
+// Retuns a plugin by index
+// ---------------------------------------------------------------------------
+//
+TAny* CPluginManager::GetImplementation( TInt aIndex )
+    {
+    TAny* ret= NULL;
+    THashMapIter<TInt32, TAny*> iter( iPluginMap );
+    TAny*const* ptr = iter.NextValue();
+    for ( TInt i( 0 ); ptr; i++ )
+        {
+        if ( i == aIndex )
+            {
+            ret = *ptr;
+            break;
+            }
+        ptr = iter.NextValue();
+        }
+    return ret;
+    }
+
+// ---------------------------------------------------------------------------
+// Returns the count of the plug-ins.
+// ---------------------------------------------------------------------------
+//
+TInt CPluginManager::GetCount()
+    {
+    return iPluginMap.Count();
+    }
+
+// ---------------------------------------------------------------------------
+// Loads the plugins.
+// ---------------------------------------------------------------------------
+//
+void CPluginManager::LoadPluginsL()
+    {
+    MPX_DEBUG1("CPluginManager::LoadPluginsL <---");
+    // Read info about all implementations into infoArray
+    RImplInfoPtrArray infoArray;
+    CleanupResetAndDestroyPushL( infoArray );
+
+    REComSession::ListImplementationsL( iUid, infoArray );
+    for ( TInt i = 0; i < infoArray.Count(); i++ )
+        {
+        TUid current_plugin = infoArray[i]->ImplementationUid();
+        TAny* plug( NULL );
+        TUid temp;
+        TInt err( KErrNone );
+        TRAP( err, plug = REComSession::CreateImplementationL(
+                        current_plugin,
+                        temp,
+                        iParameter ) );
+        if ( err == KErrNone && plug )
+            {
+            CleanupStack::PushL( plug );
+            TInt32 key = current_plugin.iUid;
+            iPluginMap.InsertL( key, plug );
+            CleanupStack::Pop( plug );
+            }
+        }
+
+    CleanupStack::PopAndDestroy( &infoArray );
+    MPX_DEBUG1("CPluginManager::LoadPluginsL --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Unloads the plgugins.
+// ---------------------------------------------------------------------------
+//        
+void CPluginManager::CleanPluginsTable()
+    {
+    MPX_DEBUG1("CPluginManager::CleanPluginsTable <---");
+    THashMapIter<TInt32, TAny*> iter( iPluginMap );
+    TAny*const* ptr = iter.NextValue();
+    CBase* plug( NULL );
+    const TInt32* pluginUid( NULL );
+    while ( ptr )
+        {
+        plug = static_cast<CBase*>( *ptr );
+        delete plug;
+        plug = NULL;
+        pluginUid = iter.CurrentKey();
+        REComSession::DestroyedImplementation( TUid::Uid( *pluginUid ) );
+        ptr = iter.NextValue();
+        pluginUid = NULL;
+        }
+    MPX_DEBUG1("CPluginManager::CleanPluginsTable --->");
+    }
+
+// ---------------------------------------------------------------------------
+//From CActive
+// ---------------------------------------------------------------------------
+//
+void CPluginManager::RunL()
+    {
+    MPX_DEBUG1("CPluginManager::RunL <---");
+    CleanPluginsTable();
+    iPluginMap.Close();
+    iContentPublisher->ResetL();
+    LoadPluginsL();
+    iSession->NotifyOnChange( iStatus );
+    SetActive();
+    MPX_DEBUG1("CPluginManager::RunL --->");
+    }
+
+// ---------------------------------------------------------------------------
+//From CActive
+// ---------------------------------------------------------------------------
+//
+void CPluginManager::DoCancel()
+    {
+    MPX_DEBUG1("CPluginManager::DoCancel <---");
+    iSession->CancelNotifyOnChange( iStatus );
+    MPX_DEBUG1("CPluginManager::DoCancel --->");
+    }
+
+// ---------------------------------------------------------------------------
+//From CActive
+// ---------------------------------------------------------------------------
+//
+TInt CPluginManager::RunError( TInt /*aError*/ )
+    {
+    MPX_DEBUG1("CPluginManager::RunError <---");
+    MPX_DEBUG1("CPluginManager::RunError --->");
+    return KErrNone;
+    }
+
+//  End of File
+