--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappfw_plat/mpx_collection_common_definition_api/inc/mpxcollectionpluginobserver.h	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,101 @@
+/*
+* Copyright (c) 2006 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:  Collection plugin observer
+*
+*/
+
+
+#ifndef MMPXMCOLLECTIONPLUGINOBSERVER_H
+#define MMPXMCOLLECTIONPLUGINOBSERVER_H
+
+
+#include <mpxcollectionframeworkdefs.h>
+#include <mpxmessage2.h>
+#include <mpxcollectionenginecommonobserver.h>
+
+class CMPXCollectionPath;
+
+// CONSTANTS
+
+// CLASS DECLARATION
+
+/**
+ *  MMPXCollectionPluginObserver class
+ *
+ *  Observer interface for Collection plugin
+ */
+NONSHARABLE_CLASS(MMPXCollectionPluginObserver) :
+    public MMPXCollectionEngineCommonObserver
+    {
+public:
+
+   /**
+    * Handle message from plug-in
+    *
+    * @param aMessage, message from the plug-in
+    * @deprecated Please use HandleMessage(CMPXMessage* aMsg, TInt aError)
+    */
+    virtual void HandleMessage(const CMPXMessage& aMsg)
+        {
+        HandleMessage(const_cast<CMPXMessage*>(&aMsg), KErrNone);
+        }
+
+    /**
+     * Handle message from plug-in.
+     * Note: make it as pure virtual when previous callback removed
+     *
+     * @since S60 3.2.3
+     * @param aMessage message from the plug-in. Ownership not transferred.
+     * @param aError error code.
+     */
+     virtual void HandleMessage(CMPXMessage* /*aMsg*/, TInt /*aError*/)
+         {}
+
+    /**
+     * Handle opening a group, e.g. an artist.
+     *
+     * @since S60 3.2.3
+     * @param aMedia media object returned. NULL will be returned if error
+     *               Ownership not transferred.
+     * @param aErr error code
+     */
+    virtual void HandleOpen(CMPXMedia* aMedia, TInt aErr) = 0;
+
+    /**
+     * Handle opening an item.
+     *
+     * @since S60 3.2.3
+     * @param aPath path to the selected item, NULL will be returned if error
+     *              Ownership not transferred
+     * @param aErr error code
+     */
+    virtual void HandleOpen(CMPXCollectionPath* aPath, TInt aErr) = 0;
+
+    /**
+     * Handle opening a group, e.g. an artist.
+     *
+     * @since S60 3.2.3
+     * @param aMedia media object returned. NULL will be returned if error.
+     *        Ownership not transferred.
+     * @param aPath full path to to current level. Including top level nodes as well.
+     *         NULL will be returned if error. Ownership not transferred
+     *         Note. The path does not contain any state info besides a list of ids.
+     * @param aErr error code
+     */
+    virtual void HandleOpen(CMPXMedia* aMedia,
+                            const CMPXCollectionPath* aPath,
+                            TInt aErr) = 0;
+    };
+
+#endif      // MMPXMCOLLECTIONPLUGINOBSERVER_H