/*

* Copyright (c) 2009-2010 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 file contains the header file of the IAUpdateEngine

*                class 

*

*/

#ifndef IAUPDATEENGINE_H_

#define IAUPDATEENGINE_H_

#include <QObject>

#include "iaupdateuidefines.h"

#include "iaupdateuicontrollerobserver.h"

#include "iaupdatenode.h"

class IAUpdateServiceProvider;

class CIAUpdateUiController;

class CIAUpdateFWUpdateHandler;

class CIAUpdateParameters;

class CIAUpdateGlobalLockHandler;

class CIAUpdateAutomaticCheck;

class MIAUpdateNode;

class MIAUpdateFwNode;

class CEikonEnv;

class CIdle;

class HbAction;

class IAUpdateResultsDialog;

class IAUpdateEngine : public QObject,

                       public MIAUpdateUiControllerObserver

    {

    Q_OBJECT

public:

    IAUpdateEngine(QObject *parent = 0);

    ~IAUpdateEngine();

    void StartedByLauncherL( bool aRefreshFromNetworkDenied );

     /**

      * When the update check operation is started through

      * the API, the session directs the requests for the UI. UI will

      * handle the operation and inform the observer when the operation is

      * completed.

      * @param aFilterParams These parameters are used when update items

      * are filtered for the UI list.

      */

     void CheckUpdatesRequestL( int wgid, 

                                CIAUpdateParameters* aFilterParams, 

                                bool aForcedRefresh );

     /**

      * When the show update operation is started through

      * the API, the session directs the requests for the UI. UI will

      * hanle the operation and inform the observer when the operation is

      * completed.

      * @param aFilterParams These parameters are used when update items

      * are filtered for the UI list.

      */

     void ShowUpdatesRequestL( int wgid, CIAUpdateParameters* aFilterParams );

     /** 

      * When the update operation is started through

      * the API, the session directs the requests for the UI. UI will

      * hanle the operation and inform the observer when the operation is

      * completed.

      * @param aUid  Uid of the caller of the request

      */

     void ShowUpdateQueryRequestL( int wgid, uint aUid );

     void StartUpdate( bool aFirmwareUpdate );

     /**

      * Set this application visible/unvisible

      * @param aVisible If EFalse application is put background and is hidden in FSW 

      */

      void SetVisibleL( bool aVisible );

      /**

      * Set window group id of client application 

      *

      * @param aWgId Window group id

      */

      void SetClientWgId( int aWgId );

      /**

      * Is client application in background

      *

      * @param True value if client application is in background

      */

      bool ClientInBackgroundL() const;

signals:

    void toMainView();

    /**

    * Refreshes main view 

    * @param aError  Error code

    */              

    void refresh(const RPointerArray<MIAUpdateNode>& nodes,

                 const RPointerArray<MIAUpdateFwNode>& fwNodes,

                 int error);

public slots:    

    void handleAllClientsClosed();    

    void dialogFinished(HbAction* action);

private: // From MIAUpdateUiControllerObserver   

    /**

    * Called when async engine start-up is completed

    *

    * @param aError Error code

    */

    void StartupComplete( TInt aError ); 

    /**

    * Leaving method, called as trapped in StartupComplete

    */

    void StartupCompleteL(); 

    /**

    * Handles leave error. 

    *

    * @param aError Error code

    */      

    void HandleLeaveErrorL( TInt aError );

    /**

    * Handles leave error withot leaving

    *

    * @param aError Error code

    */      

    void HandleLeaveErrorWithoutLeave( TInt aError );

    /**

    * Called when async update list refresh is completed

    *

    * @param aError Error code

    */

    void RefreshCompleteL( TBool aWithViewActivation, TInt aError );

    /**

    * Called when async updating is completed

    *

    * @param aError Error code

    */     

    void UpdateCompleteL( TInt aError );

private:  //new methods

    /**

    * Show results dialog of update

    */ 

    void ShowResultsDialogL();

    void ShowRebootDialogL();

    /**

    * Informs an observer that its async request is completed 

    *

    * @param aError  Error code 

    */ 

    void InformRequestObserver( int aError );

    /**

     * Sets the default connection method used for network access.

     * Connection can be set as an accesspoint or as a snap for example.

     *

     * @param aTotalSilent Set to ETrue if want silent connection

     *

     * @note Not stored persistently. A client needs to set this 

     * again every time it creates the controller.

     *

     * @note Leaves with KErrNotFound if connection method was not

     * set in the repocitory.

     */

    void SetDefaultConnectionMethodL( bool aTotalSilent );   

     /**

     * Choose a usable IAP from all SNAPs

     *

     */  

     /**

     * Choose a usable IAP from Internet SNAP

     *

     */

     /**

     * Choose the best IAP under the given SNAP

     *

     * @param aSNAP SNAP ID

     */  

     /**

     * Shows update query dialog (now/later) 

     */ 

     void ShowUpdateQueryL();

     void HideApplicationInFSWL( bool aHide ) const;

     /**

     * CIdle callback function, that shows update query dialog

     * To be used because a client to be informed immediately that its 

     * async request is issued. Waiting dialog cannot be shown before responding to a client  

     *

     * @param aPtr  Pointer to this instance

     */

     static TInt UpdateQueryCallbackL( TAny* aPtr );

     /**

     * CIdle callback function, that performs automatic update check and query

     *

     * @param aPtr  Pointer to this instance

     */

     static TInt AutomaticCheckCallbackL( TAny* aPtr );

private:

    enum DialogState

        {

        NoDialog,

        Results,

        RebootQuery,

        ShowUpdateQuery

        };

    IAUpdateServiceProvider *mServiceProvider;

    IAUpdateResultsDialog* mResultsDialog;

    CIAUpdateUiController* iController;

    CIAUpdateFWUpdateHandler* iFwUpdateHandler;

    CIAUpdateGlobalLockHandler* iGlobalLockHandler;

    CIAUpdateAutomaticCheck* iAutomaticCheck;

    CEikonEnv* iEikEnv; //not owned

    CIdle* iIdle;

    CIdle* iIdleAutCheck;

    IAUpdateUiDefines::TIAUpdateUiRequestType mRequestType;

    bool mUpdateNow;

    RArray<TUint32> iDestIdArray;

    bool mRequestIssued;

    bool mStartedFromApplication;

    bool mUiRefreshAllowed;

    uint mUpdatequeryUid;

    int mWgId;

    DialogState mDialogState;

    HbAction *mPrimaryAction;

    HbAction *mSecondaryAction;

    };

#endif /* IAUPDATEENGINE_H_ */