/*******************************************************************************

 * Copyright (c) 2007, 2010 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *     Nokia Corporation - S60 implementation

 *******************************************************************************/

#ifndef BROWSERPREFERENCES_H

#define BROWSERPREFERENCES_H

#include "eswtexpanded.hrh"

class CSwtBrowserVpnApItem;

class CSwtBrowserApItem;

const TUint KWmlNoDefaultAccessPoint = KMaxTUint;

/**

 * Struct for MPreferencesObserver

 */

struct TPreferencesValues

{

    // Setting Values

    TUint                           iDefaultAccessPoint;

    CSwtBrowserApItem*              iDefaultAPDetails;  //cache all data

    TUint                           iAssocVpn;

    TBool                           iAccessPointSelectionMode;

    TBool                           iAutoLoadImages;

    TUint                           iFontSize;

    TBool                           iTextWrap;

    TBool                           iCookies;

    TBool                           iPageOverview;

    TBool                           iBackList;

    TBool                           iAutoRefresh;

    TBool                           iEcma;

    TBool                           iIMEINotification;

    TUint32                         iEncoding;

    TBool                           iFullScreen;

    TBool                           iQueryOnExit;

    TBool                           iSendReferrer;

    TUint                           iHomePgType;

    TBool                           iHTTPSecuritySupressed;

    TBool                           iConnDialogs;

    TBool                           iHttpSecurityWarnings;

    TUint                           iMediaVolume;

    HBufC*                          iSearchPgURL;

    HBufC*                          iHomePgURL;

    TBool                           iPopupBlocking;

    TUint                           iFormDataSaving;

    TUint                           iAutomaticUpdating;

    TUint                           iAutomaticUpdatingAP;

    TUint                           iZoomMin;

    TUint                           iZoomMax;

    TUint                           iZoomDef;

};

/**

 * Enum for MPreferencesObserver

 */

enum TPreferencesEvent

{

    EPreferencesActivate,   // Preferences opened

    EPreferencesDeactivate, // Preferences closed

    EPreferencesItemChange  // Setting change has occurred

};

/**

 * MPreferencesObserver

 * Observer for the MPreferences Class.

 * @lib eswt

 */

class MPreferencesObserver

{

public:

    /**

     * From MPreferencesObserver

     * Observer for Preference changes

     * @param aEvent The type of preference event which happened

     * @param aValues A struct of all settings values

     * @return void

     */

    virtual void HandlePreferencesChangeL(const TPreferencesEvent aEvent,

                                          TPreferencesValues& aValues, TBrCtlDefs::TBrCtlSettings aSettingType) = 0;

};

/**

 * MBrowserPreferences

 * Interface for Preferences handling.

 * @lib eswt

 */

class MBrowserPreferences

{

public: // New functions

    /**

     * Returns a structure containing all of the settings according to the

     * central repository values

     * @return Returns references of TPreferencesValues which contains all preferences

     */

    virtual const TPreferencesValues& AllPreferences() const = 0;

    /**

     * To access DefaultAccessPoint setting

     * @return UID for default accesspoint

     */

    virtual TUint DefaultAccessPoint() const = 0;

    /**

     * To access vpn item if exists.

     * @param aDefaultAccessPoint UID for the accesspoint

     * @param aVpnItem Vpn Item

     * @return ETrue when vpn item is valid, EFalse otherwise.

     */

    virtual TBool VpnDataL(TUint aDefaultAccessPoint,

                           CSwtBrowserVpnApItem& aVpnItem) = 0;

    /**

     * To access HTTP security warnings setting

     * @return ETrue if security warnings are enabled

     */

    virtual TBool HttpSecurityWarnings() const = 0;

    /**

     * To check whether the CDMA UI local feature ("R-BrUI2") is

     * supported or not.

     * @param aFeature The feature to check.

     * @return ETrue when the feature is supported, EFalse otherwise.

     */

    virtual TBool CdmaUiLocalFeatureSupported(const TInt aFeature) const  = 0;

    /**

     * To access ShowConnectionDialogs setting

     * @return ETrue if the dialog is confirmed, otherwise EFalse..

     */

    virtual TBool ShowConnectionDialogs() const = 0;

    /**

     * To check that a ui local feature is supported or not

     * @param aFeature Feature to check

     * @return Returns ETrue if feature is supported

     */

    virtual TBool UiLocalFeatureSupported(const TInt aFeature) const  = 0;

    /**

     * To modify DefaultAccessPoint setting.

     * @param aDefaultAccessPoint Id of default accesspoint/

     * @param aAssocVpn Associated Vpn.

     * @return void.

     */

    virtual void SetDefaultAccessPointL(TUint aDefaultAccessPoint,

                                        TUint aAssocVpn = KWmlNoDefaultAccessPoint) = 0;

    /**

     * To modify FontSize setting

     * @param aFontSize Set new font size

     * @return void.

     */

    virtual void SetFontSizeL(TInt aFontSize) = 0;

    /**

    * To modify Encoding setting

    * @param aEncoding The encoding to set.

    * @return void.

    */

    virtual void SetEncodingL(TUint32 aEncoding) = 0;

    /**

     * To access to the list of self download content types.

     * See CBrCtlInterface::SetSelfDownloadContentTypesL()!

     * @return Returns the pointer to the string which indicates download content types.

     */

    virtual TPtrC SelfDownloadContentTypesL() = 0;

    /**

     * To access Default Access Point Always Ask settings.

     * @return Returns ETrue when always ask mode is on, otherwise EFalse.

     */

    virtual TBool AccessPointSelectionMode() = 0;

    /**

     * To modify Default Access Point Settings

     * @param aAccessPointSelectionMode Access point selection mode.

     * @return void.

     */

    virtual void SetAccessPointSelectionModeL(

        TWmlSettingsAccessPointSelectionMode aAccessPointSelectionMode) = 0;

    /**

     * To access AutoLoadImages setting.

     * @return Value of setting

     */

    virtual TBool AutoLoadImages() const = 0;

    /**

     * To access BackList setting.

     * @return Value of setting

     */

    virtual TBool BackList() const = 0;

    /**

     * To access AutoRefresh setting.

     * @return Value of setting

     */

    virtual TBool AutoRefresh() const = 0;

    /**

     * To access Cookies setting

     * @return TWmlSettingsCookies

     */

    virtual TBool Cookies() const = 0;

    /**

     * To access ECMA setting

     * @return TWmlSettingsECMA

     */

    virtual TBool Ecma() const = 0;

    /**

     * Get IMEI notification setting

     * @return EWmlSettingsIMEIEnable if notification is enabled,

     * otherwise EWmlSettingsIMEIDisable

     */

    virtual TBool IMEINotification() const = 0;

    /**

     * Sends/Don not send the referrer header

     * 0 = Do not send the referrer header

     * 1 = Send the referrer header

     * @return ETrue if Send referrer header is enabled

     */

    virtual TBool SendReferrer() const = 0;

    /**

     * To access PageOverview setting.

     * @return Value of setting

     */

    virtual TBool PageOverview() const = 0;

    /**

     * To access Form Data Saving setting.

     * @return value of setting

     */

    virtual TUint FormDataSaving() const = 0;

    /**

     * Adds an observer to be notified about changes. Derived classes MUST

     * notify all observers when preferences changed!

     * @param anObserver Observer to be notified about events.

     * @return void.

     */

    virtual void AddObserverL(MPreferencesObserver* anObserver) = 0;

    /**

     * Removes an observer.

     * @param anObserver The observer.

     * @return void.

     */

    virtual void RemoveObserver(MPreferencesObserver* anObserver) = 0;

    /**

     * Notifies observer.

     * @param TPreferencesEvent The preference event.

     * @param aSettingType the setting type.

     * @return void.

     */

    virtual void NotifyObserversL(TPreferencesEvent aEvent,

                                  TBrCtlDefs::TBrCtlSettings aSettingType) = 0;

};

#endif // BROWSERPREFERENCES_H