mmfenh/enhancedmediaclient/Client/src/Components/ClientProgDLSource/EventAO.h
changeset 0 71ca22bcf22a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/enhancedmediaclient/Client/src/Components/ClientProgDLSource/EventAO.h	Tue Feb 02 01:08:46 2010 +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:  header of EventAO class.
+*
+*/
+
+
+#ifndef C_CEVENTAO_H
+#define C_CEVENTAO_H
+
+//  INCLUDES
+#include <e32base.h>
+
+namespace multimedia
+    {
+    
+    // Observer
+    /**
+     *  Observer that monitors the Source State changes
+     *  @lib EnhancedMediaClient.lib
+     *  @since S60 v3.2
+     */    
+    class MSourceStateObserver
+        {
+        public:
+            virtual void SourceStateChanged() = 0;
+        };
+    
+    /**
+     *  Active Object that monitors the Source State Change
+     *  Event from the Source Side
+     *  @lib EnhancedMediaClient.lib
+     *  @since S60 v3.2
+     */    
+   class CEventAO : public CActive
+        {
+        public:  // Constructors and destructor
+            /**
+             * Function to Create the Object.
+             * @param aObserver Observer to callback the Event.
+             */
+            static CEventAO* NewL(MSourceStateObserver& aObserver);
+            /**
+            * Destructor.
+            */
+            virtual ~CEventAO();
+            
+            /**
+             * From CActive.
+             * Indicates that this active object has issued a
+             * request and that it is now outstanding 
+             *
+             * @since S60 v3.2
+             */            
+            void SetActive();
+
+            /**
+             * From CEventAO.
+             * Returns the Error Stoted on Completion of the Request
+             *
+             * @since S60 v3.2
+             */            
+            TInt Error();
+            
+        protected:
+            // From CActive
+            void RunL();
+            void DoCancel();
+            TInt RunError( TInt aError );
+            
+        private:
+            CEventAO( MSourceStateObserver& aObserver );
+            void ConstructL();
+            
+        private:
+            /**
+            * Observer stored to Callback
+            */
+            MSourceStateObserver& iObserver;
+            /**
+            * Error Stored upon Request Completion
+            */
+            TInt iError;
+        };
+    
+    } // namespace multimedia
+
+#endif // C_CEVENTAO_H
+
+// End of File