internetradio2.0/activeidleenginc/iractiveidleeng.h
changeset 0 09774dfdd46b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/internetradio2.0/activeidleenginc/iractiveidleeng.h	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,110 @@
+/*
+* Copyright (c) 2006-2007 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:  ?Description
+*
+*/
+
+#ifndef IRACTIVEIDLEENG_H
+#define IRACTIVEIDLEENG_H
+
+#include "iractiveidleengpubsubnotifyhandler.h"
+
+class CIRActiveIdleEngPubSub;
+class MIRActiveIdleEngNotifyHandler;
+
+/**
+* Engine component for Internet Radio Active Idle plugin.
+*
+* This class is responsible for listening to relevant P&S keys and notifying the UI code whenever the listened keys change.
+* The actual listening is done by multiple CIRActiveIdleStatusObserver objects.
+*/
+NONSHARABLE_CLASS(CIRActiveIdleEng) : public CBase, 
+	public MIRActiveIdleEngPubSubNotifyHandler
+    {
+    public:
+        
+        /**
+        * Static constructor.
+        * @param    aObserver   The observer to be notified of the changes in the keys.
+        * @return   The newly created CIRActiveIdleEng object.
+        */
+    IMPORT_C static CIRActiveIdleEng* NewL( 
+    	MIRActiveIdleEngNotifyHandler& aObserver );
+        
+        /**
+        * Destructor.
+        */
+        IMPORT_C ~CIRActiveIdleEng();
+        
+        /**
+        * Construction finalizer.
+        * Must be called after CIRActiveIdleEng::NewL. 
+        */
+        IMPORT_C void SecondConstructL();
+        
+    protected: // From MIRActiveIdleStatusObserver
+        /**
+    * Invoked when an error occurred while retrieving the new 
+    * value of the key.
+    * @param    aCategory   The category of the key that changed.
+    * @param    aKey        The key that changed.
+    * @param    aError      The error code.
+        */
+    void HandlePropertyChangeErrorL( const TUid& aCategory, TUint aKey, 
+    	TInt aError );
+        
+        /**
+    * Invoked when the listened key is changed.
+    * @param    aCategory   The category of the key that changed.
+    * @param    aKey        The key that changed.
+    * @param    aText       The new value of the key.
+        */
+    void HandlePropertyChangeL( const TUid& aCategory, TUint aKey,
+    	const TDesC8& aText );
+        
+        /**
+    * Invoked when the listened key is changed.
+    * @param    aCategory   The category of the key that changed.
+    * @param    aKey        The key that changed.
+    * @param    aValue      The new value of the key.
+        */
+    void HandlePropertyChangeL( const TUid& aCategory, TUint aKey, 
+    	TInt aValue );
+
+	private:
+    
+        /**
+        * Constructor.
+    * @param    aObserver   The observer to be notified of the changes 
+    * in the keys.
+        */
+        CIRActiveIdleEng( MIRActiveIdleEngNotifyHandler& aObserver );
+    
+        /**
+        * Second-phase constructor.
+        */
+        void ConstructL();        
+        
+    protected:
+    
+        /** The observer to be notified of the changes in the listened keys. */
+        MIRActiveIdleEngNotifyHandler& iObserver;
+        /** Array of status observers. */
+        RPointerArray<CIRActiveIdleEngPubSub> iPropertyObserverArray;
+        
+        TInt		iVolume;
+
+    };
+
+#endif//IRACTIVEIDLEENG_H