diff -r dcf0eedfc1a3 -r d189ee25cf9d emailuis/nmailuiengine/inc/nmuiengine.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmailuiengine/inc/nmuiengine.h	Tue Aug 31 15:04:17 2010 +0300
@@ -0,0 +1,246 @@
+/*
+* Copyright (c) 2009 - 2010 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 NMUIENGINE_H
+#define NMUIENGINE_H
+
+#include <QObject>
+#include <QList>
+#include <xqsharablefile.h>
+
+#include "nmcommon.h"
+#include "nmuienginedef.h"
+
+class QAbstractItemModel;
+class NmMailboxListModel;
+class NmMessageListModel;
+class NmDataManager;
+class NmDataPluginFactory;
+class NmMailboxMetaData;
+class NmMessage;
+class NmMessagePart;
+class NmMessageEnvelope;
+class NmOperation;
+class NmMessageCreationOperation;
+class NmStoreEnvelopesOperation;
+class NmAddAttachmentsOperation;
+class NmMessageSendingOperation;
+
+
+class NMUIENGINE_EXPORT NmUiEngine: public QObject
+{
+    Q_OBJECT
+
+public:
+
+    static NmUiEngine *instance();
+
+    static void releaseInstance(NmUiEngine *&instance);
+
+    NmMailboxListModel &mailboxListModel();
+
+    void refreshMailboxListModel();
+
+    NmMessageListModel &messageListModel(const NmId &mailboxId,
+                                         const NmId &folderId);
+
+    NmMessageListModel &messageListModelForSearch(const NmId &mailboxId);
+
+    NmId standardFolderId(const NmId &mailboxId, NmFolderType folderType);
+
+    NmMessage *message(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId);
+
+    QPointer<NmOperation> fetchMessage(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId);
+
+    QPointer<NmOperation> fetchMessagePart(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        const NmId &messagePartId);
+
+    QPointer<NmOperation> fetchMessageParts(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        const QList<NmId> &messagePartIds);
+
+    XQSharableFile messagePartFile(
+       const NmId &mailboxId,
+       const NmId &folderId,
+       const NmId &messageId,
+       const NmId &messagePartId);
+
+    NmMailboxMetaData *mailboxById(const NmId &mailboxId);
+
+    int contentToMessagePart(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const NmId &messageId,
+        NmMessagePart &messagePart);
+
+    NmMessage *createMessage(
+        const NmId &mailboxId,
+        const NmId &folderId);
+
+    int deleteMessages(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        const QList<NmId> &messageIdList);
+
+    QPointer<NmStoreEnvelopesOperation> setEnvelopes(
+        const NmId &mailboxId,
+        const NmId &folderId,
+        NmEnvelopeProperties property,
+        const QList<const NmMessageEnvelope*> &envelopeList);
+
+    QPointer<NmMessageCreationOperation> createNewMessage(const NmId &mailboxId);
+
+    QPointer<NmMessageCreationOperation> createForwardMessage(
+        const NmId &mailboxId,
+        const NmId &originalMessageId);
+
+    QPointer<NmMessageCreationOperation> createReplyMessage(
+        const NmId &mailboxId,
+        const NmId &originalMessageId,
+        bool replyAll);
+
+    int saveMessage(const NmMessage &message);
+
+    int refreshMailbox(const NmId &mailboxId);
+
+    int goOnline(const NmId &mailboxId);
+
+    int goOffline(const NmId &mailboxId);
+
+    int removeMessage(const NmId &mailboxId,
+                      const NmId &folderId,
+                      const NmId &messageId);
+
+    void removeDraftMessage(NmMessage *message);
+
+    void saveDraftMessage(NmMessage *message,
+                          const QList<NmOperation*> &preliminaryOperations);
+
+    void sendMessage(NmMessage *message,
+                     const QList<NmOperation*> &preliminaryOperations);
+
+    bool isSendingMessage() const;
+
+    const NmMessage *messageBeingSent() const;
+
+    QPointer<NmAddAttachmentsOperation> addAttachments(
+        const NmMessage &message,
+        const QList<QString> &fileList);
+
+    QPointer<NmOperation> removeAttachment(
+        const NmMessage &message,
+        const NmId &attachmentPartId);
+
+    NmSyncState syncState(const NmId& mailboxId);
+
+    NmConnectState connectionState(const NmId& mailboxId);
+
+    int search(const NmId &mailboxId,
+               const QStringList &searchStrings);
+
+    int cancelSearch(const NmId &mailboxId);
+
+    NmFolderType folderTypeById(NmId mailboxId, NmId folderId);
+
+    void updateActiveFolder(const NmId &mailboxId, const NmId &folderId);
+
+    void enableSyncIndicator(bool enabled);
+
+    int getSignature(const NmId &mailboxId, QString *&signature);
+
+public slots:
+
+    void handleCompletedSendOperation();
+    void handleCompletedRemoveDraftOperation();
+    void handleCompletedSaveDraftOperation();
+
+    void handleSyncStateEvent(NmSyncState syncState,
+                              const NmOperationCompletionEvent &event);
+
+    void handleConnectEvent(NmConnectState connectState,
+                            const NmId &mailboxId,
+                            const int errorCode);
+
+
+private slots:
+
+    void handleMessageEvent(NmMessageEvent event,
+                            const NmId &folderId,
+                            const QList<NmId> &messageIds,
+                            const NmId& mailboxId);
+
+    void handleMailboxEvent(NmMailboxEvent event,
+                            const QList<NmId> &mailboxIds);
+
+    void handleMatchFound(const NmId &messageId, const NmId &folderId);
+
+    void messageEventForListModel(NmMessageEvent event,
+                            const NmId &folderId,
+                            const QList<NmId> &messageIds,
+                            const NmId& mailboxId);
+
+
+signals:
+
+    void syncStateEvent(NmSyncState, const NmId &);
+    void connectionEvent(NmConnectState, const NmId &);
+    void operationCompleted(const NmOperationCompletionEvent &event);
+    void sendOperationCompleted();
+    void messageDeleted(const NmId &mailboxId, const NmId &folderId, const NmId &messageId);
+    void mailboxDeleted(const NmId &mailboxId);
+    void matchFound(const NmId &, const NmId &);
+    void searchComplete();
+
+
+private:
+
+    NmUiEngine();
+
+    virtual ~NmUiEngine();
+
+
+private: // Data
+
+    static NmUiEngine *mInstance;
+    static int	mReferenceCount;
+
+    NmDataPluginFactory *mPluginFactory;
+    NmDataManager *mDataManager;                // Owned
+    NmMailboxListModel *mMailboxListModel;      // Owned
+    NmMessageListModel *mInboxListModel;      // Owned
+    NmMessageListModel *mMessageListModel;      // Owned
+    NmMessageListModel *mMessageSearchListModel; // Owned
+    QPointer<NmMessageSendingOperation> mSendOperation;  // Not owned
+    QPointer<NmOperation> mRemoveDraftOperation; // not owned
+    QPointer<NmOperation> mSaveDraftOperation;   // not owned
+    NmMessage *mDraftMessage; // owned
+};
+
+
+#endif /* NMUIENGINE_H */
+