/*

* Copyright (c) 2002 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: 

*     This class is a part of the standard application framework.

*     It instantiates the application views.

*     It also acts as the default command handler for the application.

*

*/

#ifndef __CVRAPPUI_H__

#define __CVRAPPUI_H__

// INCLUDES

#include <aknViewAppUi.h>

#include <apparc.h>			// MApaEmbeddedDocObserver

#include "MVREmbeddedObserver.h"

// FORWARD DECLARATIONS

class MVRSelectionProvider;

class CErrorUI;

class MVRLayoutChangeObserver;

// CLASS DECLARATION

/**

* This class is a part of the standard application framework.

* It instantiates the application views.

* It also acts as the default command handler for the application.

*/

class CVRAppUi

	: public CAknViewAppUi

	{

	public: // Constructors and destructor

		/**

        * Default constructor.

        */

		CVRAppUi();

		/**

		* Destructor.

		*/

		~CVRAppUi();

		/**

        * 2nd phase constructor.

        */

		void ConstructL();

		/**

		* Receive file handle and observer for recording

		* for file new service

		* @param aFile File handle

		* @param aObserver Observer for handing events back to file service

		*/

		void RecordNewFileL( RFile& aFile, MVREmbeddedObserver* aObserver );

		/**

		* Method for setting observer for file new service

		* @param aObserver Observer for handing events back to file service

		*/

		void SetEmbeddedObserver( MVREmbeddedObserver* aObserver );

	private: // from CEikAppUi

		/**

		* Takes care of command handling.

		* @param aCommand Command to be handled

		*/

		void HandleCommandL( TInt aCommand );

		/**

		* Handles a change to the application's resources

		* @param aType The type of changed resource

		*/

		void HandleResourceChangeL( TInt aType );

		/**

		* CEikAppUi::ProcessCommandParametersL() is overwritten here, because

		* otherwise it messes with the document name.

		* @param aCommand The shell command sent to the application

		* @param aDocumentName The document name that will be given to OpenFileL()

		* @param aTail The rest of the command line

		* @return Whether the final document name represents an existing file

		*/

		TBool ProcessCommandParametersL( TApaCommand aCommand,

		    TFileName& aDocumentName, const TDesC8& aTail );

	private: // new methods

		/**

		* Provides access to the current view's MVRSelectionProvider

		* interface.

		* @return pointer to the active view as MVRSelectionProvider.

		*/

		MVRSelectionProvider* SelectionProviderL();

		/**

		* Check USB connection state

		* interface.

		* @return True/False

		*/        

        TBool IsUsbActive();

	private: // data

		/**

		* CActiveScheduler wrapper object. Owned.

		*/

		CActiveSchedulerWait iActiveWait;

		/**

		* Owned: CErrorUI object used to display notes when errors occur

		* in embedded activation

		*/

		CErrorUI* iErrorUI;

		/**

		* Pointer to object that observers layout changes and forwards

		* notification to all UI controls

		*/

		MVRLayoutChangeObserver* iLayoutChangeObserver;

		/**

		* Pointer to embedded observer which is notified (if not null) when

		* embedded recording is ready

		*/

		MVREmbeddedObserver* iEmbeddedObserver;

		/*

		* For help context, whether settings page is active.

		*/

		TBool iIsSettingsOpen;

	};

#endif // __CVRAPPUI_H__