--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingapp/msgappfw/plugins/previewplugin/inc/ccspreviewpluginhandler.h	Fri May 14 15:49:35 2010 +0300
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2007 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:  Message Preview Handler
+ *
+ */
+
+#ifndef _C_CS_PREVIEW_PLUGIN_HANDLER_H_
+#define _C_CS_PREVIEW_PLUGIN_HANDLER_H_
+
+//SYSTEM INCLUDES
+#include <msvapi.h>
+#include <f32file.h>
+#include <thumbnailmanager.h>
+#include <thumbnailmanagerobserver.h>
+#include <thumbnaildata.h>
+#include <sqldb.h>
+
+//USER INCLUDES
+#include "ccspreviewplugin.h"
+#include "UniDataModel.h"
+
+// FORWARD DECLARATION
+class CCsPlugin;
+class CMsvSession;
+class MCsPluginEventObserver;
+class MMsvSessionObserver;
+class CCsConversationEntry;
+class CCsPreviewPlugin;
+class CClientMtmRegistry;
+class CMmsClientMtm;
+
+/*
+ * Thumbnail Request Data
+ */
+struct ThumbnailRequestData
+    {
+    /*
+     * Request Id
+     */
+    TThumbnailRequestId iRequestId;
+
+    /*
+     * Message Id
+     */
+    TMsvId iMsgId;
+    };
+
+/**
+ *  This class interacts with MsvServer to fetch message data
+ */
+class CCsPreviewPluginHandler : public CBase,
+        public MMsvSessionObserver,
+        public MUniDataModelObserver,
+        public MThumbnailManagerObserver
+    {
+
+public:
+
+    /**
+     * Two phase construction
+     */
+    static CCsPreviewPluginHandler* NewL(CCsPreviewPlugin *aMsgObserver);
+
+    /**
+     * Destructor
+     */
+    virtual ~CCsPreviewPluginHandler();
+
+public:
+    //MMsvSessionObserver
+    /**
+     * Handles the MsvServer updates. Implemented for MMsvSessionObserver
+     */
+    void HandleSessionEventL(TMsvSessionEvent aEvent, TAny* aArg1,
+            TAny* aArg2, TAny* aArg3);
+
+public:
+    //MUniDataModelObserver
+    /**
+     */
+    void RestoreReady(TInt aParseResult, TInt aError);
+
+public:
+    // Callbacks from MThumbnailManagerObserver for getting thumbnails
+    void ThumbnailPreviewReady(MThumbnailData& aThumbnail,
+            TThumbnailRequestId aId);
+
+    void ThumbnailReady(TInt aError, MThumbnailData& aThumbnail,
+            TThumbnailRequestId aId);
+
+public:
+
+    /*
+     * Compare by request Id.
+     */
+    static TBool CompareByRequestId(const ThumbnailRequestData& aFirst,
+            const ThumbnailRequestData& aSecond);
+
+private:
+
+    /**
+     * Constructor   
+     */
+    CCsPreviewPluginHandler();
+
+    /**
+     * 2nd phase construtor
+     */
+    void ConstructL(CCsPreviewPlugin *aMsgPlugin);
+
+    /**
+     * Process each entry
+     *@param aSelection, CMsvEntrySelections
+     */
+    void HandleEventL(CMsvEntrySelection* aSelection);
+
+    /**
+     * Bind bodytext to sql statement.
+     *@param sqlStmt, RSqlStatement
+     *@param attachmentId, TMsvAttachmentId
+     */
+    void BindBodyText(RSqlStatement& sqlStmt, TMsvAttachmentId attachmentId);
+
+    /**
+     * Get Thumbnail data from attachment
+     *@param attachmentId, TMsvAttachmentId
+     *@param mimeType, 
+     *@param msgId, message id
+     */
+    void GetThumbNailL(TMsvAttachmentId attachmentId, TDesC8& mimeType,
+            TMsvId msgId);
+
+    /*
+     * Process Thumbnail data
+     * @param aThumbnail MThumbnailData
+     * @param aId TThumbnailRequestId
+     */
+    void HandleThumbnailReadyL(MThumbnailData& aThumbnail,
+            TThumbnailRequestId aId);
+
+private:
+    //Data
+
+    /**
+     * MsvServer session object
+     * Own
+     */
+    CMsvSession* iSession;
+
+    /**
+     * iMsgObserver
+     * The Observer interface
+     * Not Own.
+     */
+    CCsPreviewPlugin *iMsgObserver;
+
+    /**
+     * Mtm registry object
+     * Own
+     */
+    CClientMtmRegistry* iMtmRegistry;
+
+    /**
+     * Mms client mtm object
+     * Own.
+     */
+    CMmsClientMtm* iMmsMtm;
+
+    /*
+     * File session
+     */
+    RFs ifsSession;
+
+    /*
+     * Thumbnail request array.
+     * Own
+     */
+    RArray<ThumbnailRequestData> iThumbnailRequestArray;
+
+    /*
+     * Thumbnail manager.
+     * Own
+     */
+    CThumbnailManager* iThumbnailManager;
+
+    /*
+     * Sqlite DB Handle
+     */
+    RSqlDatabase iSqlDb;
+    };
+
+#endif // _C_CS_PREVIEW_PLUGIN_HANDLER_H_