diff -r dcf0eedfc1a3 -r d189ee25cf9d emailuis/nmailuiengine/inc/nmdataplugininterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmailuiengine/inc/nmdataplugininterface.h	Tue Aug 31 15:04:17 2010 +0300
@@ -0,0 +1,204 @@
+/*
+* Copyright (c) 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:
+*
+*/
+
+#ifndef NMDATAPLUGININTERFACE_H_
+#define NMDATAPLUGININTERFACE_H_
+
+#include <QList>
+#include <QPointer>
+#include <xqsharablefile.h>
+
+#include "nmcommon.h"
+
+class NmMailbox;
+class NmMessage;
+class NmMessagePart;
+class NmFolder;
+class NmMessageEnvelope;
+class NmOperation;
+class NmMessageCreationOperation;
+class NmStoreEnvelopesOperation;
+class NmAddAttachmentsOperation;
+class NmMessageSendingOperation;
+
+/*!
+    \class NmDataPluginInterface
+    \brief The class NmDataPluginInterface provides an interface to access email data from
+    protocol plugins.
+    Implementation classes of this interface are expected to emit following signals:
+    void mailboxEvent(NmMailboxEvent event,
+                      const QList<NmId> &mailboxIds);
+    void messageEvent(NmMessageEvent event,
+                      const NmId &folderId,
+                      const QList<NmId> &messageIds);
+                      const NmId& mailboxId);
+ */
+class NmDataPluginInterface
+{
+public:
+
+    virtual ~NmDataPluginInterface() {};
+    
+    virtual int listMailboxIds(QList<NmId> &mailboxIdList) = 0;
+    
+    virtual int listMailboxes(QList<NmMailbox*> &mailboxList) = 0;
+    
+    virtual int getMailboxById(const NmId &id, NmMailbox *&mailbox) = 0;
+    
+    virtual QPointer<NmOperation> deleteMailboxById(const NmId &id) = 0;
+    
+    virtual int getMessageById(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        NmMessage *&message) = 0;
+		
+    virtual int getFolderById(
+        const NmId& mailboxId, 
+        const NmId& folderId, 
+        NmFolder*& folder ) = 0;
+    
+    virtual int listFolders(
+        const NmId &mailboxId,
+        QList<NmFolder*> &folderList) = 0;
+    
+    virtual int listMessages(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        QList<NmMessageEnvelope*> &messageEnvelopeList) = 0;  
+    
+    virtual int listMessages(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        QList<NmMessageEnvelope*> &messageEnvelopeList, 
+		const int maxAmountOfEnvelopes ) = 0;
+    
+    virtual int listMessages(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        QList<NmMessage*> &messageList, 
+        const int maxAmountOfMessages = NmMaxItemsInMessageList) = 0;
+    
+    virtual QPointer<NmOperation> fetchMessage( 
+        const NmId &mailboxId, 
+        const NmId &folderId,
+        const NmId &messageId ) = 0;
+    
+    virtual QPointer<NmOperation> fetchMessagePart( 
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        const NmId &messagePartId) = 0;
+ 
+     virtual  QPointer<NmOperation> fetchMessageParts( 
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        const QList<NmId> &messagePartIds) = 0;
+    
+    virtual XQSharableFile messagePartFile(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        const NmId &messagePartId) = 0;
+    
+    virtual NmId getStandardFolderId(
+        const NmId &mailbox,
+        NmFolderType folderType ) = 0;
+    
+    virtual int refreshMailbox(NmId mailboxId) = 0;
+    
+    virtual int goOnline(const NmId &mailboxId) = 0;
+    
+    virtual int goOffline(const NmId &mailboxId) = 0;
+    
+    virtual int contentToMessagePart(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        NmMessagePart &messagePart) = 0;
+    
+    virtual int deleteMessages(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const QList<NmId> &messageIdList) = 0;
+
+    virtual QPointer<NmStoreEnvelopesOperation> storeEnvelopes(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const QList<const NmMessageEnvelope*> &envelopeList) = 0;
+
+    virtual QPointer<NmMessageCreationOperation> createNewMessage(const NmId &mailboxId) = 0;
+
+    virtual QPointer<NmMessageCreationOperation> createForwardMessage(
+        const NmId &mailboxId,
+        const NmId &originalMessageId) = 0;
+
+    virtual QPointer<NmMessageCreationOperation> createReplyMessage(
+        const NmId &mailboxId,
+        const NmId &originalMessageId,
+        const bool replyAll) = 0;
+
+    virtual int saveMessage(const NmMessage &message) = 0;
+
+    virtual QPointer<NmOperation> saveMessageWithSubparts(const NmMessage &message) = 0;
+
+    virtual int removeMessage(
+        const NmId& mailboxId,
+        const NmId& folderId,
+        const NmId& messageId) = 0;
+
+    virtual void subscribeMailboxEvents(const NmId& mailboxId) = 0;
+    
+    virtual void unsubscribeMailboxEvents(const NmId& mailboxId) = 0;
+
+    virtual QPointer<NmMessageSendingOperation> sendMessage(NmMessage *message) = 0;
+    
+    virtual QPointer<NmAddAttachmentsOperation> addAttachments(
+        const NmMessage &message,
+        const QList<QString> &fileList) = 0;
+    
+    virtual QPointer<NmOperation> removeAttachment(
+        const NmMessage &message,
+        const NmId &attachmentPartId) = 0;
+
+    virtual NmSyncState syncState(const NmId& mailboxId) const = 0;
+    
+    virtual NmConnectState connectionState(const NmId& mailboxId) const = 0;
+
+    virtual int search(const NmId &mailboxId,
+        const QStringList &searchStrings) = 0;
+
+    virtual int cancelSearch(const NmId &mailboxId) = 0;
+
+    virtual QPointer<NmOperation> removeDraftMessage(NmMessage *message) = 0;
+
+    virtual int copyMessages(
+        const NmId &mailboxId,
+        const QList<quint64> &messageIds, 
+        const NmId &sourceFolderId,
+        const NmId &destinationFolderId) = 0;
+
+    virtual int getSignature(const NmId &mailboxId, QString *&signature) = 0;
+};
+
+Q_DECLARE_INTERFACE(NmDataPluginInterface, "sf.app.commonmail.emailuis.nmailuiengine.NmDataPluginInterface/1.0")
+
+
+#endif /* NMDATAPLUGININTERFACE_H_ */
+
+