/*

* Copyright (c) 2006 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:  

*

*/

#ifndef C_CMAPPLICATIONSETTINGSUI_H

#define C_CMAPPLICATIONSETTINGSUI_H

#include <e32def.h>

#include <e32base.h>

class CCmConnSettingsUiImpl;

namespace CMManager

    {

    /**

    * CCmApplicationSettingsUi::RunApplicationSettingsL leaves with this 

    * error code if the selection dialog would have zero elements caused 

    * by filtering out all the Connection Methods with the aFilterArray

    * and not requesting other list elements by the aListItems bitfield.

    * See the comment of the RunApplicationSettingsL method for more 

    * detailes.

    * This error code is supported by the error resolver. 

    */

    const TInt KErrConnectionNotFound = -32700;

    /** 

    * The selection type of a list item in application settings UI

    */

    enum TCmSettingSelectionMode

        {

        EAlwaysAsk,         /**<

                            * The user selected Always ask 

                            */

        EDestination,       /**<

                            * The user selected a destination

                            */

        EConnectionMethod,  /**<

                            * The user selected a connection method

                            */

        EDefaultConnection // The user selected Default Connection 

        };

    /** 

    * These bitmasks controls what items does the selection UI containes.

    * Bitmasks not listed in the enum are reserved for future usage and they

    * are disabled by default. So extending these bitmasks does not cause 

    * BC break later.

    */

    enum TCmSelectionDialogItems

        {

        EShowAlwaysAsk = 0x01,          /**<

                                        * AlwaysAsk is added to the 

                                        * selection UI.

                                        */                                

        EShowDefaultConnection = 0x02,  /**<

                                        * DefaultConnection is added to the 

                                        * selection UI.

                                        */           

        /**

        * The following enumerations controls how destinations and 

        * Connection Methods are presented in the selection UI.

        * EShowDestinations is set and EShowConnectionMethods is set:

        *   Destination list is added to the selection UI and a Connection

        *   Method can be selected inside a Destination.

        * EShowDestinations is set and EShowConnectionMethods is not set:

        *   Destination list is added to the selection UI and no Connection

        *   Method can be selected inside a Destination. 

        * EShowDestinations is not set and EShowConnectionMethods is set:

        *   Connection Method list is added to the selection UI. Connection

        *   Methods are ordered according to the global bearer type 

        *   priorities. Destination cannot be selected.

        * EShowDestinations is not set and EShowConnectionMethods is not set:

        *   The selection UI will not contain any Destination or Connection 

        *   Method. E.g. If EShowAlwaysAsk and EShowDefaultConnection was set

        *   then the selection UI will contain two entries (AlwaysAsk and 

        *   DefaultConnection).

        */

        EShowDestinations = 0x04,       /**<

                                        * Destination list is added to the 

                                        * selection UI. Destinations which

                                        * does not contain any Connection

                                        * Methods are not shown.

                                        */

        EShowConnectionMethods = 0x08,  /**<

                                        * If EShowDestinations is set:

                                        *   Connection Method can be selected

                                        *   inside a destination.

                                        * If EShowDestinations is not set:

                                        *   Connection Method list is added to 

                                        *   the selection UI.

                                        */                                  

        };    

    }// namespace CMManger

    // Structs

/**

 * Stores the details of a setting selection

 *

 *  @lib cmmanager.lib

 *  @since S60 3.2

 */

NONSHARABLE_STRUCT( TCmSettingSelection )

    {

    /**

    * Selection mode, refers to the type of the list item which is selected

    */

    CMManager::TCmSettingSelectionMode iResult;

    /**

    * Id of the selected destination or connection method

    */

    TUint iId;

    };

/**

* Typedef of the bearer filter array.

* This type of array is used to filter Connection Methods

* by bearer types.

*

* The array elements are bearer IDs. The IDs are defined in the bearer

* type specific cmplugin...def.h files. E.g. the ID of the CSD bearer

* type (KUidCSDBearerType) can be found in the cmplugincsddef.h header.

*/

typedef RArray<TUint32> TBearerFilterArray;

/**

 * For launching the Application Settings UI

 *

 * Displays a radio button page for an application used to select

 * a destination or connection method

 *

 *  @lib cmmanager.lib

 *  @since S60 3.2

 */

NONSHARABLE_CLASS( CCmApplicationSettingsUi ) : public CBase

    {

    public: // construction/destruction

        /** Epoc constructor */

        IMPORT_C static CCmApplicationSettingsUi* NewL();

        /** Epoc constructor 

        * Pushes the object on the cleanup stack

        */

        IMPORT_C static CCmApplicationSettingsUi* NewLC();

        /** Destructor. */

        virtual ~CCmApplicationSettingsUi();

    //=======================================================================

    // UI API

    //

    public:

        /**

        * Launches the 'easy to use' Settings UI provided for applications

        * for handling Destinations and Connection Methods.

        * This function call launches the same selection dialog as the 

        * the extended RunApplicationSettingsL do (see below) with the

        * list items Default Connection, Destinations and  Connection Methods 

        * without any filtering.

        *

        * @since 3.2

        * @param aSelection If initialised to a valid value, sets the higlight to the

        * corresponding list item at startup. If a list of Destinations is displayed, and

        * the initial highlight is set to a Connection Method, the parent Destination

        * gets highlighted. On return, holds user selection.

        * @return TBool seleceted or not.

        */

        IMPORT_C TBool RunApplicationSettingsL( 

                                        TCmSettingSelection& aSelection );

        /**

        * Launches the 'easy to use' Settings UI provided for applications

        * for handling Destinations and Connection Methods

        *

        * @since 3.2

        * @param aSelection If initialised to a valid value, sets the higlight to the

        * corresponding list item at startup. If a list of Destinations is displayed, and

        * the initial highlight is set to a Connection Method, the parent Destination

        * gets highlighted. On return, holds user selection.

        * @param aListItems A bit field which indicates which items shoud be

        *                   shown in the selection dialog. The bitmasks are 

        *                   defined in the TCmSelectionDialogItems enum.

        *

        * The function leaves with KErrNotSupported  if all the items which 

        * were set to be shown are not supported/enabled. 

        * E.g. Default Connection availability/support is controlled by the 

        * Feature Manager so if only EShowDefaultConnection is set and the 

        * Default Connection feature is not enabled than the function leaves

        * with KErrNotSupported.

        *

        * In other cases (when an item or items are not supported/enabled but

        * not all) the selected but not supported/enabled items are not added

        * to the list. The request to show such an item is silently ignored.

        *

        *

        * Special note about the EShowDestinations and EShowConnectionMethods

        * bitmasks:      

        *   The following enumerations controls how how destinations and 

        *   Connection Methods are presented in the selection UI.

        *   General rule about the EShowDestinations:

        *     Destinations which does not contain any Connection Methods are 

        *     not shown in the selection dialog. The same rule is applied if

        *     the Destination containes Connection Methods but all of them 

        *     are filtered out by the filtering criteria.

        *   EShowDestinations is set and EShowConnectionMethods is set:

        *     Destination list is added to the selection UI and a Connection

        *     Method can be selected inside a Destination.

        *   EShowDestinations is set and EShowConnectionMethods is not set:

        *     Destination list is added to the selection UI and no Connection

        *     Method can be selected inside a Destination. 

        *   EShowDestinations is not set and EShowConnectionMethods is set:

        *     Connection Method list is added to the selection UI. Connection

        *     Methods are ordered according to the global bearer type 

        *     priorities. Destination cannot be selected.

        *   EShowDestinations is not set and EShowConnectionMethods is not set:

        *     The selection UI will not contain any Destination or Connection 

        *     Method. E.g. If EShowAlwaysAsk and EShowDefaultConnection was 

        *     set then the selection UI will contain two entries (AlwaysAsk

        *     and DefaultConnection).

        *

        * @param aFilterArray Only Connection Methods with bearer types from

        *                     the aFilterArray will be shown. 

        *                     All Connection Methods will be listed if the 

        *                     array has no element.

        * @return TBool seleceted or not.

        *

        * @leave KErrArgument If the selection dialog would have zero 

        *                     elements based on the aListItems bitmask

        *                     (aListItems is equal to zero). 

        *

        * @leave KErrNotSupported 

        *                     If the selection dialog would have zero 

        *                     elements based on the aListItems bitmask

        *                     (all the selected elements in aListItems  

        *	                  are not supported/disabled).

        *                     E.g. aListItems = EShowDefaultConnection but 

        *                     Default Connection feature is not enabled.

        *

        * @leave KErrConnectionNotFound 

        *                     If the selection dialog would have zero 

        *                     elements caused by filtering out all the 

        *                     Connection Methods with the aFilterArray

        *                     and not requesting other list elements by 

        *                     the aListItems bitfield than the function 

        *                     call leaves with KErrConnectionNotFound 

        *                     error code. A corresponding error note can

        *                     be shown using the error resolver. 

        *                     E.g. 

        *                       - aListItems = EShowConnectionMethods

        *                     but all Connection Methods are filtered 

        *                     out by the aFilterArray.

        */

        IMPORT_C TBool RunApplicationSettingsL( 

                                        TCmSettingSelection& aSelection, 

                                        TUint aListItems,

                                        TBearerFilterArray& aFilterArray);

    private:

        /** C++ constructor */

        CCmApplicationSettingsUi();

        /**

        * Epoc 2nd phase constructor

        *

        * @since S60 3.2        

        */

        void ConstructL();

    private: // data

        /**

         * implementation of the class

         */

        CCmConnSettingsUiImpl* iImpl;    

    };

#endif // C_CMAPPLICATIONSETTINGSUI_H