--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/meetingrequest/mrpolicy/src/cesmrpolicyextensionmanager.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2008-2009 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:  ESMR policy extension manager implementation
+*
+*/
+
+#include "emailtrace.h"
+#include "cesmrpolicyextensionmanager.h"
+
+#include "esmrinternaluid.h"
+
+// System includes
+#include <bautils.h>    // BaflUtils
+#include <coemain.h>    // CCoeEnv
+#include <ecom/implementationinformation.h> // RImplInfoPtrArray
+#include <ecom/ecom.h>  // REComSession
+
+/// Unnamed namespace for local definitions
+namespace {
+const TInt KESMRExtensionResourceFileOffset ( 2 );
+
+/**
+ * Custom cleanup function.
+ * @param aObj  Object to clean.
+ */
+void CleanupResetAndDestroy( TAny* aObj )
+    {
+    if ( aObj )
+        {
+        static_cast<RImplInfoPtrArray*>( aObj )->ResetAndDestroy();
+        }
+    }
+
+} // namespace
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CESMRExtensionResourceFile::CESMRExtensionResourceFile
+// ---------------------------------------------------------------------------
+//
+CESMRExtensionResourceFile::CESMRExtensionResourceFile( RFs& aFs )
+: iFsSession( aFs )
+    {
+    FUNC_LOG;
+    // do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRExtensionResourceFile::NewL
+// ---------------------------------------------------------------------------
+//
+CESMRExtensionResourceFile*
+CESMRExtensionResourceFile::NewL( const TDesC& aPath, RFs& aFs )
+    {
+    CESMRExtensionResourceFile* self =
+        new (ELeave) CESMRExtensionResourceFile( aFs );
+    CleanupStack::PushL( self );
+    self->ConstructL( aPath );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRExtensionResourceFile::~CESMRExtensionResourceFile
+// ---------------------------------------------------------------------------
+//
+CESMRExtensionResourceFile::~CESMRExtensionResourceFile()
+    {
+    FUNC_LOG;
+    iResFile.Close();
+    // Don't close the fssession, we have only reference to CCoeEnv's RFs
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRExtensionResourceFile::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CESMRExtensionResourceFile::ConstructL( const TDesC& aPath )
+    {
+    FUNC_LOG;
+    TFindFile findFile( iFsSession );
+    TInt error = findFile.FindByDir( aPath, KNullDesC() );
+    if ( error == KErrNone )
+        {
+        TFileName fileName;
+        fileName.Append( findFile.File() );
+        // Solve the FullPath
+        BaflUtils::NearestLanguageFile(iFsSession, fileName);
+        iResFile.OpenL(iFsSession, fileName);
+        iResFile.ConfirmSignatureL();
+
+        // Extension resource should be always the first resource in the
+        // rss file.
+        iResId = iResFile.Offset() + KESMRExtensionResourceFileOffset;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRExtensionResourceFile::ResId
+// ---------------------------------------------------------------------------
+//
+TInt CESMRExtensionResourceFile::ResId() const
+    {
+    FUNC_LOG;
+    return iResId;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRExtensionResourceFile::ResFile
+// ---------------------------------------------------------------------------
+//
+RResourceFile& CESMRExtensionResourceFile::ResFile()
+    {
+    FUNC_LOG;
+    return iResFile;
+    }
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::CESMRPolicyExtensionManager
+// ---------------------------------------------------------------------------
+//
+CESMRPolicyExtensionManager::CESMRPolicyExtensionManager( CCoeEnv& aCoeEnv )
+: iCoeEnv( aCoeEnv )
+    {
+    FUNC_LOG;
+    // do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::NewL
+// ---------------------------------------------------------------------------
+//
+CESMRPolicyExtensionManager* CESMRPolicyExtensionManager::NewL(
+        CCoeEnv& aCoeEnv )
+    {
+    FUNC_LOG;
+    CESMRPolicyExtensionManager* self =
+        new (ELeave) CESMRPolicyExtensionManager( aCoeEnv );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::~CESMRPolicyExtensionManager
+// ---------------------------------------------------------------------------
+//
+CESMRPolicyExtensionManager::~CESMRPolicyExtensionManager()
+    {
+    FUNC_LOG;
+    iResourceFiles.ResetAndDestroy();
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CESMRPolicyExtensionManager::ConstructL()
+    {
+    FUNC_LOG;
+    // do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::ReadResourcesFromExtensionsL
+// ---------------------------------------------------------------------------
+//
+void CESMRPolicyExtensionManager::ReadResourcesFromExtensionsL()
+    {
+    FUNC_LOG;
+    RImplInfoPtrArray implementations;
+    REComSession::ListImplementationsL(TUid::Uid(
+            KESMRSchedulingviewInterfaceUid), implementations);
+    CleanupStack::PushL(TCleanupItem(
+            CleanupResetAndDestroy, &implementations));
+
+    // loop through UI extensions in reverse order
+    const TInt count = implementations.Count();
+    for (TInt i = count - 1; i >= 0; --i)
+        {
+        CImplementationInformation* implInfo = implementations[i];
+        CleanupStack::PushL(implInfo);
+        implementations.Remove(i);
+
+        TFileName resourceFileName;
+        resourceFileName.Copy(implInfo->OpaqueData());
+        if ( resourceFileName != KNullDesC() && resourceFileName.Length() != 0 )
+            {
+            CESMRExtensionResourceFile* resFile = NULL;
+            TRAPD( err, resFile = CESMRExtensionResourceFile::NewL(
+                    resourceFileName, iCoeEnv.FsSession() ) );
+            if ( err == KErrNone  && resFile )
+                {
+                iResourceFiles.AppendL( resFile );
+                }
+            }
+        CleanupStack::PopAndDestroy( implInfo );
+        }
+    CleanupStack::PopAndDestroy(); // implementations
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::ReadBufferL
+// ---------------------------------------------------------------------------
+//
+HBufC8* CESMRPolicyExtensionManager::ReadBufferL( TInt aResourceId )
+    {
+    FUNC_LOG;
+    HBufC8* buffer = NULL;
+    TInt count( iResourceFiles.Count() );
+    for ( TInt i = 0; i < count; ++i )
+        {
+        CESMRExtensionResourceFile* resFile = iResourceFiles[i];
+        if ( resFile->ResId() == aResourceId )
+            {
+            buffer = resFile->ResFile().AllocReadL(aResourceId);
+            }
+        }
+
+    return buffer;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyExtensionManager::ExtensionResourceFile
+// ---------------------------------------------------------------------------
+//
+CESMRExtensionResourceFile* CESMRPolicyExtensionManager::ExtensionResourceFile(
+        TInt aResourceId )
+    {
+    FUNC_LOG;
+    CESMRExtensionResourceFile* file = NULL;
+    TInt count( iResourceFiles.Count() );
+    for ( TInt i = 0; i < count; ++i )
+        {
+        CESMRExtensionResourceFile* resFile = iResourceFiles[i];
+        if ( resFile->ResId() == aResourceId )
+            {
+            file = resFile;
+            break;
+            }
+        }
+
+    return file;
+    }
+
+//EOF
+