--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluirendering/utils/src/xnecomhandler.cpp Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2002-2004 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: Handles ecom plugins
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "xnecomhandler.h"
+#include "xnpanic.h"
+#include "xnarray.h"
+#include "xnpointerarraywithownership.h"
+#include <utf.h>
+#include <ecom/ecom.h>
+#include <ecom/implementationinformation.h>
+#include <f32file.h>
+
+// EXTERNAL DATA STRUCTURES
+//extern ?external_data;
+
+// EXTERNAL FUNCTION PROTOTYPES
+//extern ?external_function( ?arg_type,?arg_type );
+
+// CONSTANTS
+//const ?type ?constant_var = ?constant;
+
+// MACROS
+//#define ?macro ?macro_def
+
+// LOCAL CONSTANTS AND MACROS
+//const ?type ?constant_var = ?constant;
+//#define ?macro_name ?macro_def
+// MODULE DATA STRUCTURES
+//enum ?declaration
+//typedef ?declaration
+
+/**
+* A struct used for holding an implementation pointer and notifying ecom of implementation destruction
+* @since Series 90 2.0
+*/
+struct CXnEcomHandler::CEcomItem : public CBase
+ {
+ CEcomItem(TUid aInterfaceUid, CBase* aPluginImpl, TUid aDestructorId) : iInterfaceUid(aInterfaceUid), iPluginImpl(aPluginImpl), iDestructorId(aDestructorId)
+ {
+ }
+ // plugin interface id
+ TUid iInterfaceUid;
+ // plugin implementation pointer
+ CBase* iPluginImpl;
+ // ecom destructor id
+ TUid iDestructorId;
+ // plugin type
+ HBufC8* iType;
+ // destructor
+ ~CEcomItem()
+ {
+ delete iPluginImpl;
+ delete iType;
+ REComSession::DestroyedImplementation(iDestructorId);
+ }
+ };
+
+// LOCAL FUNCTION PROTOTYPES
+//?type ?function_name( ?arg_type, ?arg_type );
+
+// FORWARD DECLARATIONS
+//class ?FORWARD_CLASSNAME;
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// ?function_name ?description.
+// ?description
+// Returns: ?value_1: ?description
+// ?value_n: ?description_line1
+// ?description_line2
+// -----------------------------------------------------------------------------
+//
+//?type ?function_name(
+// ?arg_type arg, // ?description
+// ?arg_type arg) // ?description
+// {
+
+// ?code // ?comment
+
+ // ?comment
+// ?code
+// }
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CXnEcomHandler::CXnEcomHandler
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CXnEcomHandler::CXnEcomHandler()
+ {
+ }
+
+// -----------------------------------------------------------------------------
+// CXnEcomHandler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CXnEcomHandler::ConstructL()
+ {
+ }
+
+
+// -----------------------------------------------------------------------------
+// CXnEcomHandler::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CXnEcomHandler* CXnEcomHandler::NewL()
+ {
+ CXnEcomHandler* self = new( ELeave ) CXnEcomHandler;
+
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop();
+
+ return self;
+ }
+
+
+// Destructor
+CXnEcomHandler::~CXnEcomHandler()
+ {
+ iPlugins.ResetAndDestroy();
+ }
+
+// -----------------------------------------------------------------------------
+// CXnEcomHandler::PluginsL
+// Get pointers to plugins
+// -----------------------------------------------------------------------------
+EXPORT_C void CXnEcomHandler::PluginsL(TUid aInterfaceUid, const TDesC8& aType, CXnArray& aFunctions)
+ {
+ TBool cached = EFalse;
+ for (TInt i = iPlugins.Count() - 1 ; i >= 0; --i)
+ {
+ CEcomItem* tmp = iPlugins[i];
+ if (tmp->iInterfaceUid == aInterfaceUid
+ && *(tmp->iType) == aType)
+ {
+ cached = ETrue;
+ if(aFunctions.Container().Append(tmp->iPluginImpl) != KErrNone)
+ {
+ User::Leave(KXnErrAppendingPluginFailed);
+ }
+ }
+ }
+ if (cached)
+ {
+ return;
+ }
+ HBufC8* defaultData = aType.AllocL();
+ CleanupStack::PushL(defaultData);
+ TEComResolverParams resolverParams;
+ resolverParams.SetDataType(*defaultData);
+ RImplInfoPtrArray implInfoArray;
+ CXnPointerArrayWithOwnership* safeArray = CXnPointerArrayWithOwnership::NewL();
+ CleanupStack::PushL(safeArray);
+ REComSession::ListImplementationsL(aInterfaceUid, resolverParams, implInfoArray);
+// REComSession::ListImplementationsL(aInterfaceUid, implInfoArray);
+ TInt count = implInfoArray.Count();
+ for (TInt i = implInfoArray.Count() - 1; i >= 0; --i)
+ {
+ CImplementationInformation* impl = implInfoArray[i];
+ (safeArray->Container()).Insert(impl, 0);
+ }
+ if ((safeArray->Container()).Count() != count)
+ {
+ (safeArray->Container()).Reset();
+ implInfoArray.ResetAndDestroy();
+ User::Leave(KErrNoMemory);
+ }
+ implInfoArray.Reset();
+ for (TInt i = safeArray->Container().Count() - 1; i >= 0; --i)
+ {
+ CImplementationInformation* impl = static_cast<CImplementationInformation*>(safeArray->Container()[i]);
+ TUid dtorIdKey;
+ CBase* plugin = (CBase*) REComSession::CreateImplementationL(impl->ImplementationUid(), dtorIdKey);
+ CleanupStack::PushL(plugin);
+ CEcomItem* tmp = new (ELeave) CEcomItem(aInterfaceUid, plugin, dtorIdKey);
+ CleanupStack::PushL(tmp);
+ tmp->iType = aType.AllocL();
+ //tmp->iType = impl->DataType().AllocL();
+ if(iPlugins.Append(tmp) != KErrNone)
+ {
+ User::Leave(KXnErrAppendingPluginFailedAgain);
+ }
+ CleanupStack::Pop(tmp);
+ CleanupStack::Pop(plugin);
+ }
+ for (TInt i = iPlugins.Count() - 1 ; i >= 0; --i)
+ {
+ CEcomItem* tmp = iPlugins[i];
+ if (tmp->iInterfaceUid == aInterfaceUid
+ && *(tmp->iType) == aType)
+ {
+ cached = ETrue;
+ if(aFunctions.Container().Append(tmp->iPluginImpl) != KErrNone)
+ {
+ User::Leave(KXnErrAppendingPluginImplFailed);
+ }
+ }
+ }
+ CleanupStack::PopAndDestroy(safeArray);
+ CleanupStack::PopAndDestroy(defaultData);
+ }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+//?type ?classname::?member_function(
+// ?arg_type arg,
+// ?arg_type arg )
+// {
+
+// ?code
+
+// }
+
+
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+// -----------------------------------------------------------------------------
+// ?function_name implements...
+// ?implementation_description.
+// Returns: ?value_1: ?description
+// ?value_n: ?description
+// ?description
+// -----------------------------------------------------------------------------
+//
+//?type ?function_name(
+// ?arg_type arg, // ?description
+// ?arg_type arg ) // ?description
+// {
+
+// ?code
+
+// }
+
+
+// End of File