/*

* Copyright (c) 2010 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:  Easy dialing contact data manager.

*

*/

#ifndef __EASYDIALINGCONTACTDATAMANAGER_H__

#define __EASYDIALINGCONTACTDATAMANAGER_H__

#include <MPbk2ImageOperationObservers.h>

#include <MVPbkSingleContactOperationObserver.h>

#include <MVPbkOperationObserver.h>

#include <MVPbkContactViewBase.h>

#include <TPbk2ImageManagerParams.h>

#include <MPbkGlobalSetting.h> // For name order setting

#include <MVPbkContactViewObserver.h>

#include "easydialingcontactdata.h"

// FORWARD DECLARATIONS

class CVPbkContactManager;

class MContactDataManagerObserver;

class MVPbkFieldType;

class CPbk2ImageManager;

class CVPbkTopContactManager;

class CRepository;

/**

 *  CEasyDialingContactDataManager

 *  Handles the loading and storing of thumbnail bitmaps

 */

class CEasyDialingContactDataManager : 

        public CBase,

        public MPbk2ImageGetObserver,

        public MVPbkSingleContactOperationObserver,

        public MVPbkOperationErrorObserver,

        public MVPbkOperationResultObserver<MVPbkContactViewBase*>,

        public MPbkGlobalSettingObserver,

        public MVPbkContactViewObserver

    {

public:

    /**

     * Contact name display order 

     */

    enum TNameOrder

        {

        EFirstnameLastname,

        ELastnameFirstname

        };

    /**

    */

    /**

     * Destructor.

     */

    ~CEasyDialingContactDataManager();

    /**

     * Second phase constructor of the class.

     */

    void ConstructL();

    /**

    * Sets the observer. Observer is notified when thumbnail loading is complete

    * @param aObserver

    */

    void SetObserver(MContactDataManagerObserver* aObserver);

    /**

    * Sets the size of the thumbnails. If the loaded thumbnail is larger than

    * the set size, thumnail is scaled to the size. If the set size is different

    * from the old one, deletes all loaded thumbnails, which causes them to be

    * reloaded when they are needed the next time.

    * @param aSize The size of the thumbnails

    */

    void SetThumbnailSize(const TSize& aSize);

    /**

    * Gets an id string for the thumbnail, if thumbnail exists for the contact.

    * Used when the listbox items are created.

    * @param aContact Contact link

    * @param aMatchThumbnail If true, tries to match the link to the existing thumbnails

    * @param aFav Is this contact a favourite

    * @return id string. caller needs to delete this.

    */

    HBufC* GetThumbnailIdL( MVPbkContactLink* aContact, TBool aMatchThumbnail, TBool aFav );

    /**

    * Gets the thumbnail for a contact item. If thumbnail is not loaded, starts

    * loading it.

    * @param aThumbnail Outparam. Contact thumbnail. NULL if contact doesn't have thumbnail

    * @return true if contact data has been loaded

    */

    /**

    * Deletes all loaded thumbnails and cancel asynchronous operations.

    */

    void Reset();

    /**

    * Returs ETrue if voice call is available for current contact.

    */

    TBool VoiceCallAvailable( TInt aIndex );

    /**

    * Returs ETrue if video call is available for current contact.

    */

    TBool VideoCallAvailable( TInt aIndex );

    /**

    * Returs ETrue if uni-editor is available for current contact.

    */

    TBool UniEditorAvailable( TInt aIndex );

    /**

    * Returns HBufC8 descriptor containing MVPbkContactLink

    * link packaged.

    */

    HBufC8* ContactLinkLC( TInt aIndex );

    /**

     * Sets the iContactThumbnailSetting member variable to either true or false 

     * which is read and if it is false then thumbnails are not shown 

     * @param aContactThumbnailSetting which is cenrep value for ContactThumbnailSetting

     */

    void SetContactThumbnailSetting( TInt aContactThumbnailSetting );

    /**

     * Gets the iContactThumbnailSetting member variable to either true or false 

     * which is read and if it is false then thumbnails are not shown 

     * returns iContactThumbnailSetting which is cenrep value for ContactThumbnailSetting

     */

    TBool GetContactThumbnailSetting( );

    /**

    * Flushes the asynchronous contact data of all contacts.

    */    

    void Reload();

    /**

    * Checks if contact link is a favourite. This is meant to be used for contacts that

    * don't yet have contact data item. Since this needs to go through all the favourites,

    * unnecessary calls should be avoided.

    */    

    TBool IsFavL( MVPbkContactLink* aLink );

    /**

    * @return the number of favourites in contact db

    */

    TInt NumberOfFavsL();

    /**

    * Creates contact link to a favourite contact.

    * @param aIndex Index of the favourite in favourites view

    * @return the newly created link (added to cleanupstack)

    */

    MVPbkContactLink* FavLinkLC( TInt aIndex );

    /**

    * Creates contact string for favourite contact. This string can be used directly

    * in the contact listbox. F.ex. "Firstname Surname\tCompanyname".

    * @param aIndex Index of the favourite in favourites view

    * @param aNameOrder Name ordering to be used

    * @return the newly created string (added to cleanupstack)

    */

    HBufC* FavContactStringLC( TInt aIndex, TNameOrder aNameOrder );

    /**

     * @return Contact name display order

     */

    TNameOrder NameOrder();

    /**

     * Pause the loading of contact data. This is used to make sure listbox is responsive

     * and smooth during panning and flicking.

     * @param aPause Pause on/off

     */

    void Pause( TBool aPause );

public:

    /**

     * From MPbk2ImageGetObserver.

     */

    void Pbk2ImageGetComplete(MPbk2ImageOperation& aOperation, CFbsBitmap* aBitmap);

    /**

     * From MPbk2ImageGetObserver.

     */

    void Pbk2ImageGetFailed(MPbk2ImageOperation& aOperation, TInt aError);

public:

    /**

     * From MPbkGlobalSettingObserver.

     */

    void SettingChangedL( MPbkGlobalSetting::TPbkGlobalSetting aKey );

private: 

    /**

     * From MVPbkSingleContactOperationObserver.

     */

    void VPbkSingleContactOperationComplete(

            MVPbkContactOperationBase& aOperation,

            MVPbkStoreContact* aContact );

    /**

     * From MVPbkSingleContactOperationObserver.

     */

    void VPbkSingleContactOperationFailed(

            MVPbkContactOperationBase& aOperation, 

            TInt aError );

private:

    /**

     */

    void StoreReady( MVPbkContactStore& aContactStore );

    /**

     */

    void StoreUnavailable( MVPbkContactStore& aContactStore, TInt aReason );

    /**

     */

private:

    /**

     * From MVPbkOperationErrorObserver.

     */

    void VPbkOperationFailed(

            MVPbkContactOperationBase* aOperation,

            TInt aError );

private:

    /**

     * From MVPbkOperationResultObserver.

     */

    void VPbkOperationResultCompleted(

            MVPbkContactOperationBase* aOperation,

            MVPbkContactViewBase* aOperationResult );

private:

    /**

     * From MVPbkContactViewObserver.

     * For observing changes to favourites view.

     */

    virtual void ContactViewReady(

            MVPbkContactViewBase& aView );

    virtual void ContactViewUnavailable(

            MVPbkContactViewBase& aView );

    virtual void ContactAddedToView(

            MVPbkContactViewBase& aView, 

            TInt aIndex, 

            const MVPbkContactLink& aContactLink );

    virtual void ContactRemovedFromView(

            MVPbkContactViewBase& aView, 

            TInt aIndex, 

            const MVPbkContactLink& aContactLink );

    virtual void ContactViewError(

            MVPbkContactViewBase& aView, 

            TInt aError, 

            TBool aErrorNotified );

private:

    void InitReady();

    TInt FindContactIndex( MVPbkContactLink* aContact );

    void LoadNextContactDataL();

    void DoHandleImageGetCompleteL(CFbsBitmap* aBitmap, TInt aIndex);

    void HandleError(TInt aError);

    void DoHandleContactOperationCompleteL( MVPbkStoreContact* aContact, TInt aIndex);

    void GetAvailableServicesL( MVPbkStoreContact* aContact, TInt aIndex );

    void InformObserver();

    void UpdateNameOrderL();

private:

    /** Array that contains all loaded contact data. Owned. */

    RPointerArray<CEasyDialingContactData> iContactDataArray;

    /** Array that contains indexes of thumbnails that are waiting to be loaded. Owned. */

    RArray<TInt> iWaitingContacts;

    /** Phonebook image manager. Owned. */

    CPbk2ImageManager* iImageManager;

    /** Parameters for image manager. Contains info about the size of thumbnails. */

    TPbk2ImageManagerParams iImageManagerParams;

    /** Field type. Not owned. */

    const MVPbkFieldType* iThumbnailFieldType;

    /** Image loading operation. Owned. */

    MPbk2ImageOperation* iImageOperation;

    /** Contact item for which a thumbnail is being loaded. Owned. */

    MVPbkStoreContact* iStoreContact;

    CVPbkContactManager* iContactManager;

    /** Contact data manager observer. Not owned. */

    MContactDataManagerObserver* iObserver;

    /** Top (i.e. favourite) contacts manager. Owned. */

    CVPbkTopContactManager* iVPbkTopContactManager;

    /** Virtual phonebook operation handle. Owned. */

    MVPbkContactOperationBase* iContactOperation;

    /** Variable which tells either to show or hide contact thumbnails. */

    TBool iContactThumbnailSetting;

    /** ETrue if asynchronous opening of the contac store is ready. */

    TBool iStoreReady;

    /** View to vpbk containing all favourite contacts. Owned. */

    MVPbkContactViewBase* iFavsView;

    /** Favourites view is ready to be used. */

    TBool iFavsViewReady;

    /** Virtual phonebook operation handle for getting favourites. Owned. */

    MVPbkContactOperationBase* iFavsOperation;

    /** Phonebook settings interface. */

    MPbkGlobalSetting* iPbkSettings;

    /** Contact name display order. */

    TNameOrder iNameOrder;

    /** Contact data manager pause status */

    TBool iPause;

    };

#endif //__EASYDIALINGTHUMBNAILMANAGER_H__