camerauis/cameraapp/generic/inc/CamObserverHandler.h
branchRCL_3
changeset 24 bac7acad7cb3
parent 0 1ddebce53859
child 25 2c87b2808fd7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/CamObserverHandler.h	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,89 @@
+/*
+* 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:  observer handler class
+*
+*  Copyright © 2007 Nokia.  All rights reserved.
+*  This material, including documentation and any related computer
+*  programs, is protected by copyright controlled by Nokia.  All
+*  rights are reserved.  Copying, including reproducing, storing,
+*  adapting or translating, any or all of this material requires the
+*  prior written consent of Nokia.  This material also contains
+*  confidential information which may not be disclosed to others
+*  without the prior written consent of Nokia.
+
+*
+*
+*/
+
+
+#include <e32base.h>
+#include "CamObservable.h"
+
+#ifndef CAMOBSERVERHANDLER_H
+#define CAMOBSERVERHANDLER_H
+
+class CCamObserverHandler : public CBase, public MCamObservable
+    {
+public:
+	/**
+	*	Static factory construction function
+    *   @since 2.8
+	*	@return pointer to constructed instance of CCamNaviCounterModel
+	*/
+	static CCamObserverHandler* NewL();
+
+    /**
+    * Destructor.
+    */
+    ~CCamObserverHandler();
+    
+    
+public:
+    /**
+    * Registers an observer if not previously registered
+    * @param aObserver The observer concerned
+    * @since 3.0
+    */
+    void RegisterObserverL(MCamObserver* aObserver);
+    
+    /**
+    * Deregisters an observer if previously registered
+    * @param aObserver The observer concerned
+    * @since 3.0
+    */
+    void DeregisterObserver(MCamObserver* aObserver);
+    
+    /**
+    * Broadcasts an event code to all registered observers
+    * @param aEvent The event code
+    */    
+    void BroadcastEvent(TCamObserverEvent aEvent);
+
+protected:
+    /**
+    * C++ Constructor
+    */
+    CCamObserverHandler();
+    
+    /**
+    * Second-phase constructor
+    */
+    void ConstructL();
+    
+private:
+    // Internal list of observers
+    RPointerArray<MCamObserver> iObservers;
+    };
+        
+#endif // CAMOBSERVERHANDLER_H