/*

* Copyright (c) 2002 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:  

*     Container for main view.

*     Derived from CMceListContainer.

*

*/

#ifndef MCEONEROWMESSAGELISTCONTAINER_H

#define MCEONEROWMESSAGELISTCONTAINER_H

//  INCLUDES

#include <coecntrl.h> // CCoeControl

#include <bldvariant.hrh>

#include <akntreelistobserver.h>

#include <msvstd.h>

#include "MceMessageListContainerBase.h"

#include "MceMessageListContTimer.h"

#include "MceOneRowMessageListArray.h"

// FORWARD DECLARATIONS

class CMceOneRowListItemArray;

class CAknSingleColumnStyleTreeList;

class CAknsBasicBackgroundControlContext;

class CPtiEngine;

class CAknTreeList;

class CMtmUiDataRegistry;

// CLASS DECLARATION

/**

*  Container for main view.

*  Derived from CMceListContainer.

*/

class  CMceOneRowMessageListContainer :

    public CMceMessageListContainerBase,

    public MAknTreeListObserver,

    public MMceOneRowListItemArrayObserver

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CMceOneRowMessageListContainer* NewL(

            CMceMessageListView& aParentView,

            const TRect& aRect,

            CMsvSessionPtr aSession,

            MMtmUiDataRegistryObserver& aRegObserver );

        /**

        * Destructor.

        */

        virtual ~CMceOneRowMessageListContainer();

        /**

        * From MAknTreeListObserver.

        * Handles tree list events.

        */

        TBool HandleTreeListEvent( CAknTreeList& aList, TAknTreeItemID aItem,

            TEvent aEvent );

        /**

        * Resets tree list

        */

        void ResetListbox();

        /**

        * Returns ETrue if empty list or there are items selected.

        */

        TBool DisplayOptionsMenuFromSelectionKey() const;

        /**

        * From MMceOneRowListItemArrayObserver

        */

        void MceListItemArrayChangedL(

            CArrayFixFlat<TInt>& aChangedItems );

        /**

        * From MMceOneRowListItemArrayObserver

        */

        void HandleMarkCommandL( TInt aCommand );

        /**

        * From CMceMessageListContainerBase

        */

        TInt MceListId() const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual TInt Count() const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual TInt MessageCount() const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual TInt FolderCount() const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual TBool SetCurrentItemIdL( TMsvId aEntryId );

        /**

        * From CMceMessageListContainerBase

        */

        virtual void ResetCurrentItemL();

        /**

        * From CMceMessageListContainerBase

        */

        TMsvId FindEntry( const TDesC& aMatchString ) const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual void ItemCountChangedL( TBool aItemsAdded );

        /**

        * From CMceMessageListContainerBase

        */

        virtual void RefreshListbox();

        /**

        * From CMceMessageListContainerBase

        */

        virtual TBool FindFirstUnreadMessageL( TMsvId& aEntryId ) const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual TMessageListItemType CurrentItemType() const;

        /**

        * From CMceMessageListContainerBase

        */

        void SetFolderL( TMsvId aFolderId );

        /**

        * From CMceMessageListContainerBase

        */

        TMsvId CurrentFolderId() const;

        /**

        * From CMceMessageListContainerBase

        */

        const TMsvEntry& FolderEntry() const;

        /**

        * From CMceMessageListContainerBase

        */

        TInt CurrentItemIndex() const;

        /**

        * From CMceMessageListContainerBase

        */

        TMsvId  CurrentItemId() const;

        /**

        * From CMceMessageListContainerBase

        */

        CMsvEntrySelection* CurrentItemSelectionL();

        /**

        * From CMceMessageListContainerBase

        */

        CMsvEntrySelection* CurrentItemSelectionRefreshL();

        /**

        * From CMceMessageListContainerBase

        */

        TInt CurrentItemSelectionCount() const;

        /**

        * From CMceMessageListContainerBase

        */

        TInt SelectionCount() const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual TBool IsItemSelected( TMsvId aItemId );

        /**

        * From CMceMessageListContainerBase

        */

        void ClearSelection();

        /**

        * From CMceMessageListContainerBase

        */

        void MarkItemSelectionL();

        /**

        * From CMceMessageListContainerBase

        */

        void AddCurrentItemToSelectionL();

        /**

        * From CMceMessageListContainerBase

        */

        void RemoveCurrentItemFromSelection();

        /**

        * From CMceMessageListContainerBase

        */

        void RefreshSelectionIndexesL( TBool aForceUpdate = EFalse );

        /**

        * From CMceMessageListContainerBase

        */

        void AddAllToSelectionL();

        /**

        * From CMceMessageListContainerBase

        */

        void MarkAllReadMessagesL();

        /**

        * From CMceMessageListContainerBase

        */

        TInt MarkedItemsCount();

        /**

        * From CMceMessageListContainerBase 

        */

        TBool IsCurrentItemFolder() const;

        /**

        * From CMceMessageListContainerBase

        */

        TBool IsItemFolder( TMsvId aItemId ) const;

        /**

        * From CMceMessageListContainerBase

        */

        TBool IsItemFolder( TInt aIndex ) const;

        /**

        * From CMceMessageListContainerBase

        */

        TBool IsItemRemote( TMsvId aItemId ) const;

        /**

        * From CMceMessageListContainerBase

        */

        TBool IsOpenedFolder( TMsvId aFolderId ) const;

        /**

        * From CMceMessageListContainerBase

        */

        virtual void SetSortTypeL( TInt aSortType, TBool aOrdering );

        /**

        * From CMceMessageListContainerBase

        */

        virtual void SetMtmUiDataRegistry( MMtmUiDataRegistryObserver* aRegistryObserver );

        /**

        * From CMceMessageListContainerBase

        */

        void SetListEmptyTextL(const TDesC& aText);

        /**

        * From CCoeControl

        */

        void GetHelpContext(TCoeHelpContext& aContext) const;

        /**

        * From CMceMessageListContainerBase

        */

        void SetAnchorItemIdL(

            TMessageListOperationType aOperationType );

        /**

        * From CMceMessageListContainerBase

        */

        void HandleMsvSessionEventL(

            MMsvSessionObserver::TMsvSessionEvent aEvent,

            CMsvEntrySelection& aSelection,

            TBool aDraw );

        /**

        * From CMceMessageListContainerBase 

        */

        TUint OptionsCommandSupported() const;

        /**

        * From CMceMessageListContainerBase 

        */

        void HandleOptionsCommandL( TInt aCommand );

        /**

        * From CMceMessageListContainerBase 

        */

        void DateTimeFormatChangedL( TInt aChangeFlag );

        /**

        * From CMceMessageListContainerBase 

        */

        TInt SetSpecialMskL();

        /**

        * Expands focused node

        */

        void ExpandFocusedNode();

        /**

        * Collapses focused node

        */

        void CollapseFocusedNode();

        /**

        * From CMceMessageListContainerBase 

        */

        void UpdateIconArrayL( );

    public:     // Functions from base classes

        /**

        * From CCoeControl

        */

        TInt CountComponentControls() const;

        /**

        * From CCoeControl

        */

        CCoeControl* ComponentControl(TInt aIndex) const;

        /**

        * From CCoeControl

        */

        virtual TKeyResponse OfferKeyEventL(

            const TKeyEvent& aKeyEvent,

            TEventCode aType );

        /**

        * From CCoeControl

        */

        void SizeChanged();

        /**

        * From CAknAppUi

        */

        void HandleResourceChange( TInt aType );

        /**

        * From MEikCommandObserver

        */

        virtual void ProcessCommandL(TInt aCommand);

        /**

        * Retrieves an object of the same type as that encapsulated in aId.

        *

        * @param aId An encapsulated object type ID.

        */

        TTypeUid::Ptr MopSupplyObject( TTypeUid aId );

        /**

        * Tries to find item from the currently opened list and retuns

        * list index if found. KErrNotFound if not found.

        * @param aId: item id to be searched

        * @return List index of the item.

        */

        TInt ItemIndex( TMsvId aId ) const;

        /**

        * From CCoeControl.

        * Draws this CHierarchicalColumnListAppView to the screen.

        *

        * @param aRect the rectangle of this view that needs updating.

        */

        void Draw( const TRect& aRect ) const;

        /**

        * Sets MSK command

        * @param aLabelResourceId Resource Id for MSK

        */

        void ChangeMskCommand( TInt aLabelResourceId );

        /**

        * From CMceMessageListContainerBase 

        */

        void SetContainerFlag( TMceContainerFlags aFlag, TBool aState );

    protected:  // Functions from base classes

        // From CCoeControl

        void FocusChanged(TDrawNow aDrawNow);

    private:

        /**

        * Symbian OS constructor.

        */

        void ConstructL(

            const TRect& aRect,

            CMsvSessionPtr aSession,

            MMtmUiDataRegistryObserver& aRegObserver );

        /**

        * Constructor is private.

        */

        CMceOneRowMessageListContainer( CMceMessageListView& aParentView );

        /**

         * Function that check if a key can be search

         * @param aPointerEvent The pointer event

         * @return ETrue if it can

         * since 3.2

         */

        TBool IsValidSearchKey(const TKeyEvent& aKeyEvent);

        /**

        * Add children items to specified node

        * @param aParentId Parent node Id

        */

        void AddChildrenL( TAknTreeItemID aParentId );

        /**

        * Removes children from specified node

        * @param aParentId Parent node Id

        */

        void RemoveChildren( TAknTreeItemID aParentId );

        /**

        * Gets number of marked items

        * @return number of marked items

        */

        TInt GetMarkedItemsCountL() const;

        /**

        * Adds default icons

        */

        void AddDefaultIconsL();

        /**

        * Adds an entry to tree list

        * @param aEntryIndex index of new entry

        */

        void AddEntryL( TInt aEntryIndex );

        /**

        * Updates an entry

        * @param aEntryId TMsvId of the entry to be changed

        */

        void UpdateEntryL( TMsvId aEntryId );

        /**

        * Updates tree list when new entry created

        * @param aSelection Items created

        * @param aDraw Will list be drawed immediality

        */

        void EntryCreatedL( 

            CMsvEntrySelection& aSelection,

            TBool aDraw );

        /**

        * Updates tree list when entry deleted

        * @param aSelection Items deleted

        * @param aDraw Will list be drawed immediality

        */

        void EntryDeletedL( 

            CMsvEntrySelection& aSelection,

            TBool aDraw );

        /**

         * Handles shortcut for search

         * Since 5.0

         */

        void HandleShortcutForSearchL( const TKeyEvent& aKeyEvent );

        /*

        * Function that check if * key can change msglist state

        * @return ETrue if it can

        * Since 5.0

        */

        TBool StateCanBeChangedByStarKeyL() const;

        /*

        *  Check if * key has been handled

        *  @return ETrue if it's handled

        *  Since 5.0

        */

        TBool HasHandleStarKeyDoneL();

        /*

        *  mark item read/unread

        * Since 5.0

        */

        void MarkReadUnreadWithStarKeyL();

        /*

        * Check if message list is sort by date

        *  @return ETrue if it is

        *  Since 5.0

        */

        TBool IsSortByDate();

        /*

        * Get icon id for subtitle icon

        * @param aSortType used sorting 

        * @param aSetUnread ETrue if unread type of icon

        * @return Icon id 

        */

        TInt GetSubtitleIcon ( TBool aSetUnread );

        /*

        * Updates subtitle icon

        * @param aSubtitleID: subtitle ID

        * @param aReadStatusKnown: ETrue if there is known unread item under subtitle