/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* which accompanies this distribution, and is available

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*     Phonebook contact editor dialog.

*

*/

#ifndef __CPbkContactEditorDlg_H__

#define __CPbkContactEditorDlg_H__

//  INCLUDES

#include <AknForm.h>    // CAknForm

#include <cntdef.h>     // TContactItemId

#include <babitflags.h>     // TBitFlags

// FORWARD DECLARATIONS

class CAknTitlePane;

class CPbkContextPaneIcon;

class CPbkThumbnailPopup;

class CPbkThumbnailCmd;

class CPbkContactEditorFieldArray;

class CPbkContactEngine;

class CPbkContactItem;

class MPbkContactEditorStrategy;

class MPbkEditorOkToExitCallback;

class CAknNavigationControlContainer;

// CLASS DECLARATION

/**

 * A contact editing dialog implementation. This class can be used

 * to construct an UI editor dialog that is specifically tailored

 * to edit contacts in a similar fashion as in the platform contacts

 * application. 

 */

class CPbkContactEditorDlg :

        public CAknForm

    {

    public:  // Constructors and destructor

        /**

         * Creates an instance of an editor dialog for an aContactItem.

         *

         * @param aEngine   Phonebook engine

         * @param aContactItem  Contact item to edit

         * @param aIsNewContact Set to ETrue if aContactItem is a new contact

         *        (not yet in the database)

         * @param aFocusIndex   Optional index of field to focus initially, 

         *                      default behaviour is to focus the topmost field.

         * @param aEdited   If ETrue sets the contact initially to the edited state.

         *        Use when some data is added to aContactItem

         *        that needs to be saved even if user edits

         *        nothing. Default behaviour is to set the contact to 

         *        non-edited state.

         * @return A new dialog object.

         */

        IMPORT_C static CPbkContactEditorDlg* NewL

            (CPbkContactEngine& aEngine,

            CPbkContactItem& aContactItem,

            TBool aIsNewContact,

            TInt aFocusIndex=-1,

            TBool aEdited=EFalse);

        /**

         * Destructor.

         */

        ~CPbkContactEditorDlg();

    public:  // Interface

        /**

         * Sets aSelfPtr to NULL when this dialog is destroyed.

         * @precond Precondition: !aSelfPtr || *aSelfPtr==this

         */

        IMPORT_C void ResetWhenDestroyed(CPbkContactEditorDlg** aSelfPtr);

        /**

         * Runs the dialog. This object is destroyed when this function

         * returns or leaves.

         * NOTE: Current status pane layout is replaced with the

         *       Phonebook one. Restoring the original pane is left to be

         *       the responsibility of the caller.

         *

         * @return  The id of the saved contact. KNullContactId if not saved.

         *          Please note that the contact item (aContactItem passed

         *          to NewL) might be modified even if it is not saved to the

         *          database.

         */

        IMPORT_C TContactItemId ExecuteLD();

        /**

         * Hides the 'Exit' command from the options menu. This must be called

         * before calling ExecuteLD.

         */

        IMPORT_C void HideExitCommand();

        /**

         * Sets help context. There are many applications using contact editor

         * and they may have an own help topic to be shown, when editor's help

         * is launched. With this command it's possible to define the used

         * help content. If not called after, uses Phonebook's own help context

         * as default.

         * @param aContext Help context to use

         */

        IMPORT_C void SetHelpContext(TCoeHelpContext aContext);

        /**

         * Sets exit callback. The callback is called before exit happens.

         * If the callback returns EFalse, the exit process is cancelled.

         * @param aCallback Exit callback

         */

        IMPORT_C void SetExitCallback(MPbkEditorOkToExitCallback* aCallback);

        /**

         * Sets the exit command in the options menu to forward aCommandId to the

         * application framework. Allows clients to process and capture the exit 

         * command in the application exit situation.

         * @param aCommandId    Command id to send to the framework when the exit

         *                      occurs.

         */

        IMPORT_C void SetExitCommandId(TInt aCommandId);

    private:  // from CCoeControl

        TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType);

        void GetHelpContext(TCoeHelpContext& aContext) const;

    private:  // Command handlers

        void CmdSaveL();

        void CmdDoneL();

        void CmdEditItemLabelL();

        void CmdAddItemL();

        void CmdDeleteItemL();

        void CmdFetchThumbnailL();

        void CmdRemoveThumbnailL();

    private:  // From CAknForm

        void PreLayoutDynInitL();

        void PostLayoutDynInitL();

        void SetInitialCurrentLine();

        void ProcessCommandL(TInt aCommandId);

        void DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);

        TBool OkToExitL(TInt aKeycode);

        void HandleControlStateChangeL(TInt aControlId);

    protected:  // Constructors

        CPbkContactEditorDlg

            (CPbkContactEngine& aEngine,

            CPbkContactItem& aContactItem,

            TInt aFocusIndex);

        void BaseConstructL(TBool aIsNewContact, TBool aEdited);

    protected:  // Implementation

        void StoreTitlePaneTextL();

        void ConstructContextMenuL();

        void ConstructNaviPaneL();

        TBool IsNewContact() const;

        void UpdateTitlePaneL();

        void CloseAllPopups();

        TBool ContactAlreadyExistsL(); 

        TBool DuplicateNameMatchL(CContactIdArray* aIdArray); 

        TBool CheckForDuplicateEntryL(); 

	    void ReloadThumbnailL();

        void WriteContactToDbL();

        /// State flag values for CPbkContactEditorDlg

        enum TStateFlag

            {

            EHideExit, // Hide exit

            EEscKeyReceived, /// Espace key received

            EUnderDestruction // The dialog is under destruction

            };

    protected: // data

        /// Ref: Contact item under editing

        CPbkContactItem& iContactItem;

        /// Own: Contact editor field manager

        CPbkContactEditorFieldArray* iFieldManager;

    private:  // Data

        /// Ref; Contact engine

        CPbkContactEngine& iEngine;

        /// Own: Index of field to focus initially

        TInt iFocusIndex;

        /// Own: state flags

        mutable TBitFlags iStateFlags;

        /// Ref: pointer to ExecuteLD return value

        TContactItemId* iSavedContactPtr;

        /// Ref: application's title pane

        CAknTitlePane* iTitlePane;

        /// Own: Title pane text to restore on exit

        HBufC* iStoredTitlePaneText;

        /// Own: Phonebook context pane icon

        CPbkContextPaneIcon* iContextPaneIcon;

        /// Own: Thumbnail image handler

        CPbkThumbnailPopup* iThumbnailHandler;

        /// Own: context menu bar

        CEikMenuBar* iContextMenuBar;

        /// Own: Thumbnail command handler

        CPbkThumbnailCmd* iThumbnailCmd;

        /// Own: editor dialog strategy

        MPbkContactEditorStrategy* iEditorStrategy;

        /**

         * Ref: self pointer for easier leave handling

         * @invariant !iSelfPtr || *iSelfPtr==this

         */

        CPbkContactEditorDlg** iSelfPtr;

        class CExtension;

        /// Own: for adding extensions

        CExtension* iExtension;

        /// Own: the help context to use

        TCoeHelpContext iHelpContext;

        /// Ref: Contact editor exit callback

        MPbkEditorOkToExitCallback* iExitCallback;

        /// Own: exit command id

        TInt iExitCommandId;

        /// Ref: status pane handle

        CAknNavigationControlContainer* iNaviContainer;

    private: // friends

        friend class CExtension;

     };

#endif // __CPbkContactEditorDlg_H__

// End of File