--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlefw/inc/framework/aistateobserver.h	Fri Feb 19 23:07:29 2010 +0200
@@ -0,0 +1,88 @@
+/*
+* Copyright (c) 2008 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:  State Observer
+*
+*/
+
+
+#ifndef _AISTATEOBSERVER_H
+#define _AISTATEOBSERVER_H
+
+// System includes
+
+// User includes
+#include <aifwdefs.h>
+
+// Forward declarations
+class THsPublisherInfo;
+
+/**
+ * State Observer
+ * 
+ * @ingroup group_aifw
+ * @lib aifw.lib
+ * @since S60 5.2
+ */
+class MAiStateObserver
+    {
+public:
+    /**
+     * State change notification.
+     * 
+     * @since S60 5.2
+     * @param aReason State change.
+     */
+    virtual void NotifyStateChange( TAiFwState aState ) = 0;
+    
+    /**
+     * Content publisher load request.
+     * 
+     * @since S60 5.2
+     * @param aInfo Publisher Info, which describes the plugin to be loaded.
+     * @param aReason Startup reason, which will be forwarded to the plugin.
+     * @return Error code, KErrNone if succesfully loaded. 
+     */
+    virtual TInt NotifyLoadPlugin( const THsPublisherInfo& aInfo,
+        TAiFwLoadReason aReason ) = 0;
+
+    /**
+     * Content publisher destroy request.
+     * 
+     * @since S60 5.2
+     * @param aInfo Publisher Info, which describes the plugin to be destroyed.
+     * @param aReason Shutdown reason, which will be forwarded to the plugin.
+     */    
+    virtual void NotifyDestroyPlugin( const THsPublisherInfo& aInfo,
+        TAiFwDestroyReason aReason ) = 0;
+    
+    /**
+     * Notifies to update content publishers after Ecom registry change.
+     * 
+     * @since S60 5.2
+     */    
+    virtual void NotifyUpdatePlugins() = 0;
+    
+    /**
+     * Queries whether online state is in use
+     * by any of the currently loaded plugin.
+     * 
+     * @since S60 5.2
+     * @return ETrue if online/offline state needed, EFalse otherwise
+     */
+    virtual TBool OnlineStateInUse() const = 0;    
+    };
+    
+#endif // _AISTATEOBSERVER_H
+
+// End of file