/*
* s_mcchuiobserver.h :Copyright (c) 2008-2008 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 definition for CCH UI clients
*
*/


#ifndef M_CCHUIOBSERVER_H
#define M_CCHUIOBSERVER_H

/**
 *  CCH UI Observer declaration class.
 *
 *  This class defines observer implementation for the CCH UI
 *  clients. Every client must derive this class in order to
 *  be able to use services provided by CCH UI and to be able
 *  to receive observer callbacks.
 *  @code
 *  inherit in header:
 *  class CMyClass : public CBase, public MCchUiObserver
 *  @endcode
 *
 *  @lib cchui.lib
 *  @since S60 5.0
 */
class MCchUiObserver
    {
public:

    /**  Defines dialog types available through this API */
    enum TCchUiDialogType
        {
        ECchUiDialogTypeNotSet,
        // For connecting note showing
        ECchUiDialogTypeConnecting,
        // For disconnecting note showing
        ECchUiDialogTypeDisconnecting,
        // For showing info note about invalid username/password.
        // Will also automatically show username/password query after
        // showing info note.
        ECchUiDialogTypeUsernamePasswordFailed,
        // For showing username/password query.
        ECchUiDialogTypeAuthenticationFailed,
        // For showing no connections defined query. When user inputs
        // username/password and accepts query, CCHUI will save them
        // and also will re-enable service.
        ECchUiDialogTypeNoConnectionDefined,    
        // For showing no connections available query. When user selects
        // new access point, CCHUI adds it to service´s SNAP and re-enables
        // service automatically.
        ECchUiDialogTypeNoConnectionAvailable,   
        // For showing confirmation query to change connection.
        // Will show automatically also change connection query if
        // confirmation query accepted by user.
        ECchUiDialogTypeConfirmChangeConnection,
        // For showing change connection query. When user selects
        // new access point, CCHUI add it to service´s SNAP and re-enables
        // service. CCHUI will also delete old access point from service´s
        // SNAP if access point is not used by other service(s).
        ECchUiDialogTypeChangeConnection,
        // For showing defective settings info note.
        ECchUiDialogTypeDefectiveSettings,
        // For showing error in connection info note.
        // Will show automatically also confirm change connection query
        // and confirmation query is accepted by user, change connection
        // query is showed also.
        ECchUiDialogTypeErrorInConnection
        };
        
    /**  Defines operation results ie. indicates what have been done. 
         Client can implement handling based on these on callback. */
    enum TCchUiOperationResult
        {
        // Operation result not set
        ECchUiClientOperationResultNotSet,
        // User has cancelled query.
        ECchUiClientOperationResultUserCancelled,
        // Failure that prevents enabling service has happened.
        ECchUiClientOperationResultGeneralFailure,
        // CCHUI has added new access point to service´s SNAP.
        ECchUiClientOperationResultAccessPointAdded,
        // CCHUI has added new access point to service´s SNAP. 
        // CCHUI has also removed previously used access point from
        // service´s SNAP if it was not used by other service(s).
        ECchUiClientOperationResultConnectionChanged,
        // CCHUI has saved new username/password for service
        ECchUiClientOperationResultCredentialsChanged
        };
        
    /**
     * Gets called when cchui has finished showing connectivity dialogs
     * and possible connectivity related operations based on user
     * actions in those dialogs. 
     *
     * @since S60 5.0
     * @param aServiceId Service id.
     * @param aServiceState Service state after cchui operations.
     * @param aOperationResult Contains last cchui operation.
     * @return None
     */
    virtual void ConnectivityDialogsCompletedL(
        TInt aServiceId, 
        TCchUiOperationResult aOperationResult ) = 0;
    };

#endif // M_CCHUIOBSERVER_H