/*

* Copyright (c) 2007-2010 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 module contains the header file of CIAUpdateUiController 

*                class .

*

*/

//INCLUDES

#ifndef IAUPDATEUICONTROLLER_H

#define IAUPDATEUICONTROLLER_H

#include <e32base.h>

#include "iaupdateuidefines.h"

#include "iaupdatecontroller.h"

#include "iaupdatecontrollerobserver.h"

#include "iaupdatenodeobserver.h"

#include "iaupdatewaitdialogobserver.h"

#include "iaupdatestarterobserver.h"

#include "iaupdateroaminghandlerobserver.h"

#include "iaupdaterefreshobserver.h"

#include "iaupdateresultsinfo.h"

#include "iaupdateversion.h"

#include "iaupdateanynode.h"

// FORWARD DECLARATIONS

class CIAUpdateWaitDialog;

class CIAUpdateProgressDialog;

class CIAUpdateNodeFilter;

class CIAUpdateStarter;

class CIAUpdateControllerFile;

class CIAUpdateUiConfigData;

class CIAUpdateRoamingHandler;

class CIAUpdateRefreshHandler;

class MIAUpdateUiControllerObserver;

class MIAUpdateHistory;

class MIAUpdateFwNode;

// CLASS DECLARATION

/**

 *  CIAUpdateUiController controls update flow in UI  

 *

 */

class CIAUpdateUiController : 

    public CBase, 

    public MIAUpdateControllerObserver,

    public MIAUpdateNodeObserver,

    public MIAUpdateWaitDialogObserver,

    public MIAUpdateStarterObserver,

    public MIAUpdateRoamingHandlerObserver,

    public MIAUpdateRefreshObserver

    {

public: //new functions

    /**

     * Symbian two phased constructor.

     * @param aObserver Observer interface of controller

     * @return Instance of the created server object.

     */

    static CIAUpdateUiController* NewLC( 

        MIAUpdateUiControllerObserver& aObserver );    

    /**

     * Symbian two phased constructor.

     * @param aObserver Observer interface of controller

     * @return Instance of the created server object.

     */

    static CIAUpdateUiController* NewL( 

        MIAUpdateUiControllerObserver& aObserver );    

    /**

     * Destructor

     */

    virtual ~CIAUpdateUiController();

    /**

     * @return const CIAUpdateUiConfigData& Configuration data

     * from the configuration file.

     */

    const CIAUpdateUiConfigData& ConfigData() const;

    /**

     * @see MIAController::SetDefaultConnectionMethodL

     */

    void SetDefaultConnectionMethodL( 

        const TIAUpdateConnectionMethod& aMethod );

    /**

     * Check updates

     */

    void CheckUpdatesL();

    /**

     * Start refresh

     */

    void StartRefreshL();

    /**

     * Starts installation

     * @param aNodes An array of nodes to be installed

     */

    void StartInstallL( MIAUpdateNode& aNode );

    /**

     * Starts software updating.

     */

    void StartUpdateL();

    /**

     * Continue software updating, next item is handled.

     * @param aSelfUpdateFinished ETrue if the update is continued right after

     * the self update.

     */

    void ContinueUpdateL( TBool aSelfUpdateFinished );

    /**

     * Get list of nodes

     * @return An array of nodes 

     */    

    const RPointerArray< MIAUpdateNode >& Nodes() const;

    /**

     * Get list of firmware nodes

     * @return An array of nodes 

     */    

    const RPointerArray< MIAUpdateFwNode >& FwNodes() const;

    /**

     * @see MIAUpdateController::HistoryL

     */ 

    MIAUpdateHistory& HistoryL();    

    /**

     * Sets the request type

     * @param aRequestType Request type

     */

    void SetRequestType( 

        IAUpdateUiDefines::TIAUpdateUiRequestType aRequestType );

    /**

     * Cancel ongoing async operation

     **/

    void CancelOperation();

    /**

     * Info about success of updates

     * @return TIAUpdateResultsInfo Describes success

     * of update operations

     **/

    TIAUpdateResultsInfo ResultsInfo() const;

    /**

     * Count of available updates

     * @return Count of available updates

     **/

    TInt CountOfAvailableUpdates() const; 

    /**

     * Gives access to starter object

     * @return Pointer to CIAUpdateStarter instance

     **/

    const CIAUpdateStarter* Starter() const;

    /**

     * Gives access to filter object

     * @return Pointer to CIAUpdateNodeFilte instance

     **/

    const CIAUpdateNodeFilter* Filter() const;

    /**

     * Do cancel depending on request type and state

     * @return True value if possible cancel has been performed 

     *         and/or application can be closed by client

     **/

    TBool DoCancelIfAllowed(); 

    /**

     * Depending on request type and state closing Application update is

     * allowed or not by a client application

     *

     * @return True if closing is allowed by a client

     **/

    TBool ClosingAllowedByClient();

    /**

     * Starts CIdle before update check. That's because waiting dialogs 

     * may be shown before update check, still client's request to be responsed immediately  

     *

     * @param aParams Update parameters passed from a client

     **/

    void CheckUpdatesDeferredL( CIAUpdateParameters* aParams, TBool aRefreshFromNetworkDenied );

    void PrepareRoamingHandlerL();

    /**

     * This function handles situation when the iaupdate has been restarted after

     * self update. If restart has occurred, then the update operation will be continued

     * to the end as in normal update case.

     *

     * @param aShutdownRequest True value means that update was completed by end key, 

     *                         only purchase history to be updated in this function 

     *

     * @return TBool ETrue if the restart has occurred. EFalse if the application was

     * not started from self updater.

     */

    TBool HandlePossibleSelfUpdateRestartL( TBool aShutdownRequest );

    /**

    * This is used to get information after self update when

    * IAD is restarted.

    *

    * @return CIAUpdateParameters* Parameter object that is read

    * from the file. NULL if file was not found. 

    * Ownership is not transferred.

    */

    CIAUpdateParameters* ParamsReadAndRemoveFileL();

    /**

     * Is client role "testing"

     *

     * @return ETrue when client's role is "testing"

     **/

    TBool TestRole() const; 

public: // MIAUpdateControllerObserver     

    /**

     * @see MIAUpdateControllerObserver::StartupComplete 

     **/

    void StartupComplete( TInt aError );

    /**

     * @see MIAUpdateControllerObserver::RefreshComplete

     **/

    void RefreshComplete( const RPointerArray< MIAUpdateAnyNode >& aNodes,

                          TInt aError );

    /**

     * @see MIAUpdateControllerObserver::SelfUpdaterComplete

     **/

    void SelfUpdaterComplete( TInt aErrorCode );

    /**

     * @see MIAUpdateControllerObserver::ServerReportSent

     **/

    void ServerReportSent( TInt aError );

    /**

     * @see MIAUpdateControllerObserver::ClientRole

     **/

    void ClientRole( const TDesC& aClientRole );

public: // MIAUpdateNodeObserver

    /**

     * @see MIAUpdateNodeObserver::DownloadProgress

     **/

    void DownloadProgress( MIAUpdateNode& aNode, 

                           TUint aProgress,

                           TUint aMaxProgress );

    /**

     * @see MIAUpdateNodeObserver::DownloadComplete

     **/

    void DownloadComplete( MIAUpdateNode& aNode,

                           TInt aError );

    /**

     * @see MIAUpdateNodeObserver::InstallProgress

     **/

    void InstallProgress( MIAUpdateNode& aNode, 

                          TUint aProgress,

                          TUint aMaxProgress );

    /**

     * @see MIAUpdateNodeObserver::InstallComplete

     **/

    void InstallComplete( MIAUpdateNode& aNode,

                          TInt aError );

private: // MIAUpdateStarterObserver    

    /**

     * Called when an outstanding request is completed

     *

     * @param aError Error code that informs the result 

     * of the start operation. KErrNone if operation was

     * succesfull.

     */

     void StartExecutableCompletedL( TInt aError );

private:  // MIAUpdateRoamingHandlerObserver

     /**

      * Called when roaming handler is prepared

      */

     void RoamingHandlerPrepared();

private: // From MIAUpdateWaitDialogObserver    

    /**

     * This is called when the dialog is about to be closed.

     * @param aButtonId - Id of the button, which was used to cancel the dialog.

     * @return ETrue, if it's ok to close the dialog, EFalse otherwise.

     */

    TBool HandleDialogExitL( TInt aButtonId );   

private: // From MIAUpdateRefreshObserver   

     void HandleUiRefreshL();

private: // construction

    /**

     * Perform the second phase construction of a CIAUpdateUiController object

     * this needs to be public due to the way the framework constructs the AppUi 

     */

    void ConstructL();

    /**

     * Perform the first phase of two phase construction.

     * This needs to be public due to the way the framework constructs the AppUi 

     * @param aObserver Observer interface of controller

     */

    CIAUpdateUiController( MIAUpdateUiControllerObserver& aObserver );

private: // new functions

    /**

     * Called when refreshing updates list is completed.

     *

     * @param aNodes An array of nodes

     * @param aError Error code

     */

    void RefreshCompleteL( const RPointerArray< MIAUpdateAnyNode >& aNodes,

                           TInt aError );

    /**

     * Called when refreshing updates list is completed. 

     *

     * @param aNodes An array of nodes

     * @param aError Error code

     */

    void RefreshUiCompleteL( const RPointerArray< MIAUpdateAnyNode >& aNodes,

                             TInt aError );

    /**

     * Called when downloading of an update is completed

     *

     * @param aNode Downloaded node

     * @param aError Error code

     */

    void DownloadCompleteL( MIAUpdateNode& aNode, TInt aError );

    /**

     * Called when installation of an update is completed

     *

     * @param aNode Installed node

     * @param aError Error code

     */

    void InstallCompleteL( MIAUpdateNode& aNode, TInt aError );

    /**

     * Called when updating is completed

     *

     * @param aError Error code

     */

    void UpdateCompleteL( TInt aError );

    /**

     * Finishes the update flow after server reports are sent

     * or when cancel is called while sending.

     *

     * @param aError Error code

     */

    void EndUpdateFlowL( TInt aError );

    /**

     * Callback of CIdle, calls CheckUpdates()

     *

     * @param aPtr Pointer to this instance

     */

    static TInt CheckUpdatesDeferredCallbackL( TAny* aPtr );

    /**

     * Shows waiting/progress dialog during update process.

     *

     * @param aTextResourceId Resource id of text (Downloading or Installing)

     * @param aName           Name of update

     * @param aNumber         Counter of current update

     * @param aTotalCount     Total count of updates to be updated

     */                   

    void ShowUpdatingDialogL( TInt aTextResourceId,

                              const TDesC& aName,

                              TInt aNumber,

                              TInt aTotalCount );  

    /**

     * Shows waiting dialog during update process.

     *

     * @param aDisplayString       A string to be displayed

     * @param aVisibilityDelayOff  ETrue if visibility delay is off

     */                  

    void ShowWaitDialogL( const TDesC& aDisplayString, 

                          TBool aVisibilityDelayOff ); 

    /**

     * Shows progress dialog during update process.

     *

     * @param aDisplayString       A string to be displayed

     * @param aVisibilityDelayOff  ETrue if visibility delay is off

     */  

    void ShowProgressDialogL( const TDesC& aDisplayString, 

                              TBool aVisibilityDelayOff ); 

    /**

     * Removes all possible existing update flow dialogs.

     * This method is a general way to handle removal of 

     * wait or progress dialogs.

     */

    void RemoveUpdatingDialogsL();

    /**

     * Removes waiting dialog.

     */ 

    void RemoveWaitDialogL();

    /**

     * Removes progress dialog.

     */ 

    void RemoveProgressDialogL();

    /**

     * Checks if refreshing of update list allowed from a network

     * @return ETrue if network refresh allowed

     */

    TBool AllowNetworkRefreshL();

    /**

     * Checks if local update list cache is expired

     * @return ETrue if local cache is expired

     */

    TBool LocalNodesExpiredL();

    /**

     * Updates local update list cache controller file

     */

    void UpdateControllerFileL();

    /**

     * Checks if a phone is connected in a roaming network

     * @return ETrue if roaming network 

     */ 

    TBool IsRoaming();

    /**

     * Checks how iaupdate is started

     * @return ETrue if started by iaupdatelauncher, otherwise started by a client application 

     */

    TBool IsStartedByLauncher();

    /**

     * Starts the self updater process if there exists updates that require separate

     * updater.

     * @return TBool ETrue if the updater is started. 

     *               EFalse if updater was not started.

     */

    TBool StartPossibleSelfUpdateL();

    /**

     * Updates self update item error codes into the purchase history

     * after self updater could not do its job.

     * @param aErrorCode Error code that self updater has failed with.

     */

    void UpdateFailedSelfUpdaterInfoToPurchaseHistoryL( TInt aErrorCode );

   /**

     * Handles user cancel

     */    

    void HandleUserCancelL();

    /**

     * @return TBool ETrue if IAD has been started right after

     * the self update. In other words, self update related data

     * has not been handled yet. Else EFalse.

     */

    TBool CIAUpdateUiController::RestartedFromSelfUpdate();

    /**

     * Writes the possible parameter information into the temporary

     * file. This is used to save paremeter data during self update.

     */    

    void ParamsWriteFileL();

    /**

     * Removes the temporary parameters file if it exists.

     */

    void ParamsRemoveFileL();

    void CreateSelectedNodesArrayL();

    TBool IAUpdateEnabledL() const;