/*

* 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 the License "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:  Handle dialogs needed for browser operation

*

*/

#ifndef BRCTLDIALOGSPROVIDER_H

#define BRCTLDIALOGSPROVIDER_H

//  INCLUDES

#include <e32std.h>

#include <e32base.h>

/**

* Type of selection list

*/

enum TBrCtlSelectOptionType

    {

    ESelectTypeMultiple,  ///< Multiple select - Display a checkbox

    ESelectTypeSingle,    ///< Single select - Display a radio button

    ESelectTypeNone,      ///< Single select - Do not display any button

    /**

    * No buttons (single selection only)

    * OK softkey is available

    * Cancel button is not available

    */

    ESelectTypeOkOnly,

    /**

     * Added enumeration ESelectTypeWithFindPane at offset of 0x100 so that

     * the limit of different types of dialog boxes can be upto 256.

     * Any user who wants a list with find pane must "|" with a defined type

     * above like ESelectTypeNone | ESelectTypeWithFindPane to obtain a list

     * box with find pane.

     */

    ESelectTypeWithFindPane = 0x100

    };

/**

* Defines the type of image if it cannot be recognized by the

* Symbian image conversion library.

*/

enum TBrCtlImageType

    {

    EImageTypeAny, ///< Automatically recognized by the image converter

    EImageTypeWbmp, ///< Wireless Bitmap (WBMP) image

    EImageTypeOta ///< Over The Air (OTA) image

    };

// FORWARD DECLARATIONS

class TBrCtlSelectOptionData;

class CBrCtlObjectInfo;

class TBrCtlImageCarrier;

/**

* The MBrDialogsProvider class provides functions implemented by

* the Browser Control to display dialogs, such as error notifications,

* authentication requests, and selection lists.

*

* Usage:

*

* @code

*

*

* @see S60 Platform: Browser Control API Developer's Guide Version 2.0

* @lib BrowserEngine.lib

* @endcode     *

*/

class MBrCtlDialogsProvider

    {

    public: // New functions

        /**

        * Notifies the user of an error encountered during a download.

        * Some examples are: insufficient memory, unrecognized URL, and DNS not found.

        * @since 2.8

        * @param aErrCode The error that occured

        * @return void

        */

        virtual void DialogNotifyErrorL(TInt aErrCode) = 0;

        /**

        * Notifies the user of an error from the HTTP server

        * during a download. Some examples are: file not found, redirect error.

        * @since 2.8

        * @param aErrCode The error that occured

        * @param aUri The uri of the request that failed

        * @return void

        */

        virtual void DialogNotifyHttpErrorL(TInt aErrCode, const TDesC& aUri) = 0;

        /**

        * Navigates through your file system and selects a file;

        * analogous to the Browse command in Windows.

        * @since 2.8

        * @param aStartPath The initial displayed directory

        * @param aRootPath The top most directory that the user can go up to

        * @param aSelectedFileName The selected file name.

        * @return ETrue if the user selected a file

        * EFalse if the user cancelled the transaction and did not select a file.

        * @attiontion Returned on cleanup stack. Browser control will free the buffer.

        */

        virtual TBool DialogFileSelectLC(const TDesC& aStartPath,

                                         const TDesC& aRootPath,

                                         HBufC*& aSelectedFileName) = 0;

        /**

        * List selection dialog

        * @since 2.8

        * @param Title of the selection dialog. This is optional.

        * @param aBrCtlSelectOptionType The type of the list box.

        * Values: One of the following:

        * Check boxes (multiple selections allowed)

        * Radio buttons (single selection only). For example, highlight a URL listed

        *   in the session History.

        *   No buttons (single selection only)

        * No buttons (single selection only), OK softkey available

        * For example, if you are about to download a plug-in, you can choose

        * to display the content in the Web page or in a viewer application.

        * @param aOptions A list of options to display

        * @return EFalse if the user canceled the dialog selection

        * ETrue if the user selected an option.

        */

        virtual TBool DialogSelectOptionL(const TDesC& aTitle,

                                          TBrCtlSelectOptionType aBrCtlSelectOptionType,

                                          CArrayFix<TBrCtlSelectOptionData>& aOptions) = 0;

        /**

        * User Authentication dialog.

        * @since 2.8

        * @param aUrl The url requiring authentication

        * @param aRealm The realm requiring authentication

        * @param aDefaultUserName The user name that was used before for this realm and path, if any

        * @param aReturnedUserName The user name entered by the user

        * @param aReturnedPasswd The password entered by the user

        * @param aBasicAuthentication ETrue if basic authentication is required.

        * EFalse if another type of authentication is required; for example, Digest.

        * Default: EFalse

        * @return EFalse if the user cancelled the selection

        * ETrue if the user selected an option.

        @ attiontion User name and password are returned on cleanup stack.

        */

        virtual TBool DialogUserAuthenticationLC(const TDesC& aUrl,

                                                 const TDesC& aRealm,

                                                 const TDesC& aDefaultUserName,

                                                 HBufC*& aReturnedUserName,

                                                 HBufC*& aReturnedPasswd,

                                                 TBool aBasicAuthentication = EFalse) = 0;

        /**

        * Displays a message to the user.

        * For example, the message may inform the user

        * about an error encountered while processing a request.

        * @since 2.8

        * @param aMessage The message to display

        * @return void

        * @attention Softkeys are not supported.

        * The message disappears after a time out.

        */

        virtual void DialogNoteL(const TDesC& aMessage) = 0;

        /**

        * Display a note to the user with ok softkey only

        * @since 2.8

        * @param aTitle The title, could be empty

        * @param aMessage The message to display

        * @return void

        * @attention The OK softkey is supported.

        * The message displays until the user presses OK.

        */

        virtual void DialogAlertL(const TDesC& aTitle, const TDesC& aMessage) = 0;

        /**

        * Display confirmation message to the user.

        * For example, Are you sure you want to delete this?

        * @since 2.8

        * @param aTitle The title, could be empty

        * @param aMessage The message to display

        * @param aYesMessage The text to display on left softkey

        * @param aNoMessage The text to display on right softkey

        * @return EFalse if the user cancelled the selection

        * ETrue if the user selected an option.

        */

        virtual TBool DialogConfirmL(const TDesC& aTitle,

                                     const TDesC& aMessage,

                                     const TDesC& aYesMessage,

                                     const TDesC& aNoMessage) = 0;

        /**

        * Displays an input dialog to the user. Asks the user to input data.

        * @since 2.8

        * @param aTitle The title, could be empty

        * @param aMessage The message to display

        * @param aDefaultInput The default input if available

        * @param aReturnedInput The input entered by the user.

        * @return EFalse if the user cancelled the selection

        * ETrue if the user selected an option.

        * @attention Returned on the cleanup stack.

        */

        virtual TBool DialogPromptLC(const TDesC& aTitle,

                                     const TDesC& aMessage,

                                     const TDesC& aDefaultInput,

                                     HBufC*& aReturnedInput) = 0;

        /**

        * Displays information about the Netscape plug-in object and

        * requests confirmation before downloading the object.

        * @since 2.8

        * @param aBrCtlObjectInfo Information about the object to be downloaded.

        * The following information is passes as part of this object:

        * Content type

        * Size

        * Flag to indicate whether a viewer application exists for this content

        * Flag to indicate whether a Netscape plug-in exists that supports this content

        * Name of the application or Netscape plug-in with which the content can

        * be viewed on the mobile phone

        * @return EFalse if the user cancelled the selection

        * ETrue if the user selected an option.

        */

        virtual TBool DialogDownloadObjectL(CBrCtlObjectInfo* aBrCtlObjectInfo) = 0;

        /**

        * Display the images that appear in the current page

        * @since 2.8

        * @param aPageImages Array describing the images that appear in the current page.

        * The array contains the following elements for each image:

        * Image data

        * URL of the image

        * Title for the image

        * Image type

        * If the image type is WBMP or OTA, it must be specified.

        * Symbian can detect any other image type.

        * @return void

        */

        virtual void DialogDisplayPageImagesL(CArrayFixFlat<TBrCtlImageCarrier>& aPageImages) = 0;

        /**

        * Cancels the dialog displayed due to browser exit or destroyed pages.

        * @since 2.8

        * @return void

        */

        virtual void CancelAll() = 0;

        /**

        * Displays a dialog for searching on the page.

        * @since 3.0

        * @return void

        */

       virtual void DialogFindL() = 0;

    };

/**

* The TBrCtlSelectOptionData class represents a list of elements

* to display in the list box. This class is used for the List Selection Dialog.

* @code

* @lib BrowserEngine.lib

* @since 2.8

* @endcode     *

*/

class TBrCtlSelectOptionData

    {

    public:

        /**

        * Default Constructor

        * @return TbrCtlSelectOptionData object

        * @since 2.8

        */

        inline TBrCtlSelectOptionData()

                {

                iText.Set(NULL, 0);

                iIsSelected = EFalse;

                iIsOptGroup = EFalse;

                iHasOnPick = EFalse;

                }

        /**

        * Constructor

        * @since 2.8

        * @param aText The text to display with this element

        * @param aIsSelected If the element is selected

        * @param aIsOptGroup If a title of option group or an element

        * @param aHasOnPick If has onPick, The dialog should close when the element is selected

        * @return TbrCtlSelectOptionData object

        */

        inline TBrCtlSelectOptionData( const TDesC& aText,

                                        TBool aIsSelected,

                                        TBool aIsOptGroup,

                                        TBool aHasOnPick )

                                                            {

                                                            iText.Set(aText);

                                                            iIsSelected = aIsSelected;

                                                            iIsOptGroup = aIsOptGroup;

                                                            iHasOnPick = aHasOnPick;

                                                            }

        /**

        * Gets the display text associated with a specified option.

        * @since 2.8

        * @return A reference to a Symbian TDesC object that

        * contains the text associated with this option.

        */

        inline const TDesC& Text() const {return iText;}

        /**

        * Indicates whether or not an option is selected.

        * @since 2.8

        * @return ETrue if the option is selected

        * EFalse if the option is not selected

        */

        inline TBool IsSelected() const {return iIsSelected;}

        /**

        * Indicates whether an option group member

        * variable is a group title or a selectable option.

        * @since 2.8

        * @return ETrue if the listed item is the title of an option group

        * EFalse if the listed item is one of the options from which to select

        */

        inline TBool IsOptGroup() const {return iIsOptGroup;}

        /**

        * Indicates whether or not the dialog closes when an option is selected.

        * @since 2.8

        * @return ETrue if the dialog closes when the element is selected.

        * This is known as having OnPick capability.

        * EFalse if the dialog does not close when the element is selected

        */

        inline TBool HasOnPick() const {return iHasOnPick;}

        /**

        * Sets the text of the option object.

        * @since 2.8

        * @param aText A reference to a TDesC object that contains the

        * text to associate with a particular option.

        * @return None

        */

        inline void SetText( TDesC& aText )             { iText.Set( aText ); }

        /**

        * Sets the selection state of an option.

        * @since 2.8

        * @param aIsSelected The state of the IsSelected member variable.

        * Value:

        * ETrue if the option is selected

        * EFalse if the option is not selected

        * @return None

        */

        inline void SetIsSelected( TBool aIsSelected )  { iIsSelected = aIsSelected; }

        /**

        * Sets the state of the option group member variable.

        * Indicates whether an option group member variable is a group title

        * or a selectable option.

        * @since 2.8

        * @param aIsOptGroup The state of the option group.

        * Value:

        * ETrue if the listed item is the title of an option group.

        * EFalse if the listed item is one of the options from which to select.

        * @return None

        */

        inline void SetIsOptGroup( TBool aIsOptGroup )  { iIsOptGroup = aIsOptGroup; }

        /**

        * Sets the state of the hasOnPick member variable.

        * Indicates whether or not the dialog closes when an option is selected.

        * @since 2.8

        * @param aHasOnPick

        * ETrue if the dialog closes when the element is selected. This

        * is known as having OnPick capability.

        * EFalse if the dialog does not close when the element is selected

        * @return None

        */

        inline void SetHasOnPick( TBool aHasOnPick )    { iHasOnPick = aHasOnPick; }

    private:    // Data

        // The text associated with the element

        TPtrC iText;

        // Flag if the element is selected

        TBool iIsSelected;

        // Flag if an element or oprion group title

        TBool iIsOptGroup;

        // Flag if the element has onPick

        TBool iHasOnPick;

    };

/**

* The CBrCtlObjectInfo class used to represent the information about the

* plugin object.

* @code

* @lib BrowserEngine.lib

* @since 3.0

* @endcode     *

*/

class CBrCtlObjectInfo : public CBase

  {

  public:

        /**

        * Default Constructor

        * @since 2.8

        */

        CBrCtlObjectInfo();

        /**

        * Constructor

        * @since 3.0

        * @param aAppSupported A flag if there is a viewer app for this object

        * @param aPluginSupported A flag if there is a netscape plugin for this object

        * @param aSize The size of the object

        * @param aAppName The name of the viewer app or netscape plugin that supports this object

        * @param aFileType The content type of the object

        * @return CBrCtlObjectInfo object

        */

    CBrCtlObjectInfo(TBool aAppSupported, TBool aPluginSupported,

                         const TDesC& aSize, const TDesC& aAppName,

                         const TDesC& aFileType);

  public:

        /**

        * Sets the flag if there is a viewer app for this object

        * @since 3.0

        * @param aAppSupported ETrue if there is a viewer app for this object

        * EFalse if there is not a viewer app for this object.

        * @return None

        */

        inline void SetAppSupported(TBool aAppSupported) {iAppSupported = aAppSupported;}

        /**

        * Sets the flag if there is a netscape plugin for this object

        * @since 3.0

        * @param aPluginSupported ETrue if there is a netscape plugin for this object

        * EFalse if there is not a netscape plugin for this object.

        * @return None

        */

        inline void SetPluginSupported(TBool aPluginSupported) {iPluginSupported = aPluginSupported;}

        /**

        * Sets the size of the object

        * @since 3.0

        * @param aSize Symbian descriptor containing the size of the object

        * @return None

        */

        inline void SetSize(const TDesC& aSize) {iSize.Set(aSize);}

        /**

        * Sets the name of the viewer app or netscape plugin that supports this object

        * @since 3.0

        * @param aAppName  Symbian descriptor containing the name of

        * the viewer app or netscape plugin that supports this object.

        * @return None

        */

    inline void SetAppName(const TDesC& aAppName) {iAppName.Set(aAppName);}

        /**

        * Sets the content type of the object

        * @since 3.0

        * @param aFileType Symbian descriptor holding content type of the object

        * @return None

        */

    inline void SetFileType(const TDesC& aFileType) {iFileType.Set(aFileType);}

        /**

        * Tells if there is a viewer app for this object

        * @since 3.0

        * @param None

        * @return  ETrue if there is a viewer app for this object

        * EFalse if there is not a viewer app for this object.

        */

        inline TBool AppSupported() {return iAppSupported;}

        /**

        * Tells if there is a netscape plugin for this object

        * @since 3.0

        * @param None

        * @return ETrue if there is a netscape plugin for this object

        * EFalse if there is not a netscape plugin for this object.

        */

        inline TBool PluginSupported() {return iPluginSupported;}

        /**

        * Gets the size of the object

        * @since 3.0

        * @param None

        * @return Symbian descriptor containing the size of the object

        */

        inline const TDesC& Size() const {return iSize;}

        /**

        * Gets the name of the viewer app or netscape plugin that supports this object

        * @since 3.0

        * @param None

        * @return Symbian descriptor containing the name of

        * the viewer app or netscape plugin that supports this object.

        */

    inline const TDesC& AppName() const {return iAppName;}

        /**

        * Gets the content type of the object

        * @since 3.0

        * @param None

        * @return Symbian descriptor holding content type of the object

        */

    inline const TDesC& FileType() const {return iFileType;}

  private:

    // A flag if there is a viewer app for this object

        TBool iAppSupported;

        // A flag if there is a Netscape plugin for this object

    TBool iPluginSupported;

        // The size of the object

    TPtrC iSize;

        // The name of the viewer app or Netscape plugin

    TPtrC iAppName;

        // The content type of the object

    TPtrC iFileType;

  };

/**

* TheTBrCtlImageCarrier class used to give the information about the

* image.

* @code