/*

* Copyright (c) 2007 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 "Symbian Foundation License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  FreestyleEmailUi double line list visualiser definition 

*

*/

#ifndef __FREESTYLEEMAILUI_MAILLISTVISUALISER_H__

#define __FREESTYLEEMAILUI_MAILLISTVISUALISER_H__

// SYSTEM INCLUDES

#include <EIKMOBS.H>

//<cmail>

#include "fscontrolbarobserver.h"

#include "fstreelistobserver.h"

#include "CFSMailCommon.h"

#include "MFSMailEventObserver.h"

#include "fsccontactactionmenudefines.h"

//</cmail>

#include "FSEmailBuildFlags.h"

// INTERNAL INCLUDES

#include "FreestyleEmailUiViewBase.h"

#include "FreestyleEmailUiListVisualiser.h"

#include "FreestyleEmailUiConstants.h"

#include "FreestyleEmailUiControlBarCallback.h"

#include "FreestyleEmailUiUtilities.h"

#include "FreestyleEmailUiContactHandlerObserver.h"

// FORWARD DECLARATIONS

class CAlfTextVisual;

class CAlfGridLayout;

class CFSEmailUiList;

class CAlfImageVisual;

class CAlfDeckLayout;

class CAlfAnchorLayout;

class CFSEmailUiMailListModelItem;

class CFSEmailUiMailListModel;

class CListModeChanger;

class CFreestyleEmailUiTextureManager;

class CFSMailFolder;

class CFSMailClient;

class CFSMailAddress;

class CFsTreeList;

class CFsTreeVisualizerBase;

class MFsTreeItemData;

class MFsTreeItemVisualizer;

class CFreestyleEmailUiTextureManager;

class CFreestyleEmailUiMailListControl;

class CFreestyleEmailUiAppUi;

class CFsControlBar;

class CFSMailMessage;

class CFsMailFolder;

class CFsTreePlainOneLineNodeData;

class CFsTreePlainOneLineNodeVisualizer;

class MFsControlButtonInterface;

class CPbkxContactActionMenu;

class CMailListUpdater;

class CMsgMovedNoteTimer;

class CIdle;

class CESMRIcalViewer;

class CAknWaitDialog;

class CDateChangeTimer;

class CFsTreePlainTwoLineItemData;

class CFsTreePlainTwoLineItemVisualizer;

//<cmail>

class CEUiEmailListTouchManager;

//</cmail>

class CAknStylusPopUpMenu;

struct SMailListItem

	{

	TFsTreeItemId iListItemId;

	MFsTreeItemData* iTreeItemData;

	MFsTreeItemVisualizer* iTreeItemVisualiser;

	};

struct STimeDateFormats

	{

	TDateFormat iDateFormat;	

	TChar iDateSeparator;

	TTimeFormat iTimeFormat;

	TChar iTimeSeparator;

	TLocalePos iAmPmPosition;

	};

enum TMailListUiControls

	{

	EControlBarComponent=0,

	EMailListComponent

	};

enum TListControlType

	{

	EListControlTypeSingleLinePreviewOff=0,

	EListControlTypeSingleLinePreviewOn,

	EListControlTypeDoubleLinePreviewOff,

	EListControlTypeDoubleLinePreviewOn

	};

enum TListControlSeparatorValue

	{

	EListControlSeparatorDisabled=0,

	EListControlSeparatorEnabled

	};

// <cmail>

class CFSEmailUiMailListVisualiser : public CFsEmailUiViewBase, 

									 public MFsControlBarObserver, 

									 public MFSEmailUiFolderListCallback, 

									 public MFSEmailUiSortListCallback,

									 public MFsTreeListObserver,

									 public MFSEmailUiContactHandlerObserver,

									 public MFsActionMenuPositionGiver

// </cmail>

	{

friend class CMailListUpdater;

public:

	static CFSEmailUiMailListVisualiser* NewL(CAlfEnv& aEnv, CFreestyleEmailUiAppUi* aAppUi, CAlfControlGroup& aMailListControlGroup);

	static CFSEmailUiMailListVisualiser* NewLC(CAlfEnv& aEnv, CFreestyleEmailUiAppUi* aAppUi, CAlfControlGroup& aMailListControlGroup);

    virtual ~CFSEmailUiMailListVisualiser();

    void PrepareForExit();

	void DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);

	// Refresh the whole list

	void RefreshL( TFSMailMsgId* aFocusToMessage = NULL );

	// From view 

	TUid Id() const;	

	// <cmail> Toolbar

	/*void DoActivateL(const TVwsViewId& aPrevViewId,

	                 TUid aCustomMessageId,

	                 const TDesC8& aCustomMessage);*/

    // </cmail> Toolbar

	TInt NewEmailsInModelL() const;

	TInt EmailsInModelL() const;	              

	CFSEmailUiMailListModel* Model();	

	// Current active folder

	TFSMailMsgId FolderId();

	// Dynamic variant switch, called by appui

	void HandleDynamicVariantSwitchL( CFsEmailUiViewBase::TDynamicSwitchType aType );

	void HandleDynamicVariantSwitchOnBackgroundL( CFsEmailUiViewBase::TDynamicSwitchType aType );

	// Handle foregroundevent

	void HandleForegroundEventL();

	// Sets softkeys

	void SetViewSoftkeysL( TInt aResourceId );	

	void SetMskL();

	// Highlighted index

	TInt HighlightedIndex() const;

	void SetHighlightedIndexL( TInt aWantedIndex );

	// Event handling forwarded from control

	TBool OfferEventL( const TAlfEvent& aEvent ); 

    // <cmail>

	/**

	 * Open highlighted mail or node. 

	 * (Touchwork: Called from touch manager)

	 */

	void DoHandleListItemOpenL();

	/**

     * Open folderlist or shortlist.  

     * (Touchwork: Called from touch manager)

     * 

     * @param TInt button id. (shortlist or folderlist) 

     */

	void DoHandleControlBarOpenL( TInt aControlBarButtonId );

    /**

     * Open action menu.   

     * (Touchwork: Called from touch manager)

     */

	void DoHandleListItemLongTapL();

    /**

     * Get control which is currently focused.    

     * (Touchwork: Called from touch manager)

     * 

     * @return TInt id of control

     */

	TInt GetFocusedControl() const; 

    /**

     * Set control bar as focused control.   

     * (Touchwork: Called from touch manager)

     */

	void SetControlBarFocusedL();

    /**

     * Set tree list as focused control.   

     * (Touchwork: Called from touch manager)

     */

	void SetTreeListFocusedL(); 

    /**

     * Helper function for disable controls to send 

     * any events.    

     * (Touchwork)

     * 

     * @param TBool state of controls. 

     */

	void DisableMailList( TBool aValue );

	// </cmail>

	// Command handling

	void HandleCommandL(TInt aCommand);

	// Read status 

	void ChangeReadStatusOfHighlightedL( TBool aRead );

	void ChangeReadStatusOfMarkedL( TBool aRead );

	void ChangeReadStatusOfIndexL( TBool aRead, TInt aIndex );

	// Delete messages 

	void DeleteMessagesL(); 	

	// Move to drafts

	void MoveMessagesToDraftsL();

	// From base class MFSEmailUiFolderListCallback

	// Handle folder list selection

	void FolderSelectedL( TFSMailMsgId aSelectedFolderId,

	 					 TFSEmailUiCtrlBarResponse aResponse );

	void MailboxSelectedL( TFSMailMsgId aSelectedFolderId );

	TRect FolderButtonRect();

	// From base class MFSEmailUiSortListCallback

	void SortOrderChangedL( TFSMailSortField aSortField,

	 					   TFSEmailUiCtrlBarResponse aResponse );

	TRect SortButtonRect();

	// Navigation functions, used mainly from viewer

	TBool IsNextMsgAvailable( TFSMailMsgId aCurrentMsgId, TFSMailMsgId& aFoundNextMsgId, TFSMailMsgId& aFoundNextMsgFolder ) const;

	TBool IsPreviousMsgAvailable( TFSMailMsgId aCurrentMsgId, TFSMailMsgId& aFoundPreviousMsgId, TFSMailMsgId& aFoundPrevMsgFolder ) const;

	TInt MoveToNextMsgL( TFSMailMsgId aCurrentMsgId, TFSMailMsgId& aFoundNextMsgId );

	TInt MoveToPreviousMsgL( TFSMailMsgId aCurrentMsgId, TFSMailMsgId& aFoundPreviousMsgId );

	/**

     * Sets the manual mailbox syncronisation flag if the user chose   

     * to synchorise mail box from the menu

     */

    void ManualMailBoxSync( TBool aManualMailBoxSync );

    // Returns ETrue if mailbox is syncronizing and EFalse if not

    TBool GetLatestSyncState();

	void GetMarkedMessagesL( RArray<TFSMailMsgId>& aMessageIDs ) const;

	CFsTreeList& GetMailList();

	// Get message ID corresponding given list ID. If the list ID is for a node, its first child message ID is returned.

	TFSMailMsgId MsgIdFromListId( TFsTreeItemId aListId ) const;

    void HandleMailBoxEventL( TFSMailEvent aEvent, TFSMailMsgId aMailbox,

        TAny* aParam1, TAny* aParam2, TAny* aParam3 );

// from base class MFsTreeListObserver

    /** Handles tree list events. */

    // <cmail> Touch

    void TreeListEventL( const TFsTreeListEvent aEvent, const TFsTreeItemId aId );

    // </cmail>

// from base class MFSEmailUiContactHandlerObserver

    /** Handles completed contact handler event. */

    void OperationCompleteL( TContactHandlerCmd aCmd,

        const RPointerArray<CFSEmailUiClsItem>& aContacts );

    void OperationErrorL( TContactHandlerCmd, TInt aError );

    /**

    * Called when CDateChangeTimer completes. This happens when either when date

    * changes or when user alters the system time. Redraws the list to ensure that

    * time stamp texts in emails and nodes are up-to-date.

    */ 

    void NotifyDateChangedL();

// <cmail>

    TPoint ActionMenuPosition();

// </cmail>

private: // from

    /**

     * @see CFsEmailUiViewBase::ChildDoActivateL

     */

    void ChildDoActivateL( const TVwsViewId& aPrevViewId,

            TUid aCustomMessageId,

            const TDesC8& aCustomMessage );

    void ChildDoDeactivate();

    void GetParentLayoutsL( RPointerArray<CAlfVisual>& aLayoutArray ) const;

    /**

	 * @see CFsEmailUiViewBase::SetStatusBarLayout

	 */ 

    void SetStatusBarLayout();

private: // Private functions

    CFSEmailUiMailListVisualiser( CAlfEnv& aEnv, CFreestyleEmailUiAppUi* aAppUi,

        CAlfControlGroup& aMailListControlGroup );

    void ConstructL();

	// Refresh funcions

    void InsertNewMessagesL( const RArray<TFSMailMsgId>& aMessages );

    void InsertNewMessageL( CFSMailMessage* aNewMessage, const TBool aAllowRefresh ); // ownership is transferred

    void RefreshListItemsL();

    // Refresh the list order only

    void RefreshOrderL();

    // To start refreshing asynchronously

    void RefreshDeferred( TFSMailMsgId* aFocusToMessage = NULL );

    static TInt DoRefresh( TAny* aSelfPtr );

    void CompletePendingRefresh();

    // Create and insert one list node item according to given model item.

    // Omitting the argument aChildIdx causes the new node to be appended at the end of the list.

    TFsTreeItemId InsertNodeItemL( TInt aModelIndex, TInt aChildIndex = KErrNotFound, const TBool aAllowRefresh = EFalse );

    // Create and insert one list item according the given model item. The item is added under the given node.

    // Omitting the argument aChildIdx causes the new item to be appended as last child of the node.

    TFsTreeItemId InsertListItemL( TInt aModelIndex, TFsTreeItemId aParentNodeId, TInt aChildIdx = KErrNotFound, TBool aAllowRefresh = ETrue );

	// Mail model update

	void UpdateMailListModelL();

	void CreateModelItemsL( RPointerArray<CFSMailMessage>& aMessages );

	// Create title divider model item for the given message. Separator text depends on active sorting mode.

	CFSEmailUiMailListModelItem* CreateSeparatorModelItemLC( CFSMailMessage& aMessage ) const;

	// Checks if the given messages belong under the same title divider. This depends on the currect sorting mode.

	TBool MessagesBelongUnderSameSeparatorL( const CFSMailMessage& aMessage1, const CFSMailMessage& aMessage2 ) const;

	// Rescale UI	

	void SetMailListLayoutAnchors();

	// Control bar functions

	void CreateControlBarLayoutL();

	void ScaleControlBarL();

	void SetSortButtonTextAndIconL();

    void HandleControlBarEvent( TFsControlBarEvent aEvent, TInt aData );

	// Followup flag

	void SetMessageFollowupFlagL();

	void CreatePlainNodeL( const TDesC* aItemDataBuff,

                           CFsTreePlainOneLineNodeData* &aItemData,   

                           CFsTreePlainOneLineNodeVisualizer* &aNodeVisualizer ) const;                           	

	// Move messages to folder

	TInt MoveMsgsToFolderL( const TFSMailMsgId& aDestinationFolderId );

	// Collapse/Expand nodes

	void ExpandAllNodesL();

	void CollapseAllNodesL();

	void ExpandOrCollapseL();

	// Mark control functions

	void MarkAllItemsL();

	void UnmarkAllItemsL();

	TInt CountMarkedItemsL();

	void MarkMessagesIfFoundL( const RArray<TFSMailMsgId>& aMessageIDs );

	// Message deletion internal functions

	void DeleteFocusedMessageL();

	void DeleteMarkedMessagesL();

	static TInt DoDeleteMarkedMessages( TAny* aSelfPtr );

	// Helper functions to access model data

	TFSMailMsgId MsgIdFromIndex( TInt aItemIdx ) const;

	CFSMailMessage& MsgPtrFromListIdL( TFsTreeItemId aListId );	

    const CFSMailMessage& MsgPtrFromListIdL( TFsTreeItemId aListId ) const; 

	// Item data and visualiser helper functions 

	MFsTreeItemData* ItemDataFromItemId( TFsTreeItemId aItemId );										

	MFsTreeItemVisualizer* ItemVisualiserFromItemId( TFsTreeItemId aItemId );

	// Helpers to get the ordinal of a message in the iModel

	TInt ItemIndexFromMessageId( const TFSMailMsgId& aMessageId ) const;

	TInt NextMessageIndex( TInt aCurMsgIdx ) const;

	TInt PreviousMessageIndex( TInt aCurMsgIdx ) const;

	TInt ModelIndexFromListId( TFsTreeItemId aItemId ) const;

	// Open highlighted mail

	void OpenHighlightedMailL();

	void OpenMailItemL( TFsTreeItemId aMailItem );

	// Create folder name buffer, either from database or from actual folder name

	HBufC* CreateFolderNameLC( const CFSMailFolder* aFolder ) const;

	// Shortcut specific toggles

	void ShortcutReadUnreadToggleL();

	void ShortcutCollapseExpandAllToggleL();

	// Utility functions to check if all nodes are expanded or collapsed

	TBool AllNodesCollapsed() const;

	TBool AllNodesExpanded() const;

	// Utility functions to check if mark as read/unread options should be available in menus

	TBool IsMarkAsReadAvailableL() const;

	TBool IsMarkAsUnreadAvailableL() const;

	// Utility function to get list of entries which will be targeted by the Actions menu commands.

	// The list contains either marked entries or the focused message entry or is empty.

	void GetActionsTargetEntriesL( RFsTreeItemIdList& aListItems ) const;

	// Action menu specific functions

	void LaunchActionMenuL();

	void HandleActionMenuCommandL( TActionMenuCustomItemId itemId );

	void LaunchStylusPopupMenuL();

	// Compose, reply, reply all and forward

	void CreateNewMsgL();

	void ReplyL( CFSMailMessage* aMsgPtr );

	void ReplyAllL( CFSMailMessage* aMsgPtr );

	void ForwardL( CFSMailMessage* aMsgPtr );

	void DoReplyForwardL( TEditorLaunchMode aMode, CFSMailMessage* aMsgPtr = NULL );

	// Some misc housekeeping functions

	void RemoveUnnecessaryNodesL();

	void UpdateMailListSettingsL();	

	void UpdateMailListTimeDateSettings();

	STimeDateFormats MailListTimeDateSettings();

	// Request to update list item data from given message pointer

    void UpdateItemDataL( CFsTreePlainTwoLineItemData* aData, const CFSMailMessage* aMsgPtr );

	// Request to update preview pane data for list id with msg ptr

	void UpdatePreviewPaneTextForItemL( TFsTreeItemId aListItemId, CFSMailMessage* aMsgPtr );

	void UpdatePreviewPaneTextForItemL( CFsTreePlainTwoLineItemData* aTwoLineItemData, CFSMailMessage* aMsgPtr );

    void UpdatePreviewPaneTextIfNecessaryL( TFsTreeItemId aListItemId, TBool aUpdateItem = ETrue );

	// Sender/Recipient text depending on the mail folder

	HBufC* GetListFirstTextLineL( const CFSMailMessage* aMsgPtr );

	// Reload message pointer from mail client and update list item contents to match it. Item is

	// removed if it isn't valid anymore.

	void UpdateItemAtIndexL( TInt aIndex );

	// Check validity of highlighted msg and remove from list if needed

	// EFalse indicates that mail was not valid anymore.

	TBool CheckValidityOfHighlightedMsgL();

	// Icon update for msg item

	void UpdateMsgIconAndBoldingL( CFSMailMessage* aMsgPtr );

	void UpdateMsgIconAndBoldingL( TInt aListIndex, TBool aRefreshItem = ETrue );

	void UpdateMsgIconAndBoldingL( CFsTreePlainTwoLineItemData* aItemData,

	                               CFsTreePlainTwoLineItemVisualizer* aItemVis,

	                               CFSMailMessage* aMsgPtr );

	// Message removing from list if found

	void RemoveMsgItemsFromListIfFoundL( const RArray<TFSMailMsgId>& aEntryIds );

	// Branding functions

	void SetBrandedMailBoxIconL();

	void SetMailboxNameToStatusPaneL();

	void SetBrandedListWatermarkL();

    // Gives the parent node if the item has one. Returns KErrNotFound if no parent node available.

    TFsTreeItemId ParentNode( TFsTreeItemId aItemId ) const;

    // Either marks or unmarks the current item depending on the current marking state

    // as stored in iListMarkItemsState. Used for marking when shift is depressed while

    // scrolling. Returns ETrue if the highlighted item is markable.

    TBool DoScrollMarkUnmarkL();

    /**

     * Mark/unmark items under current separator.

     * 

     * @param aMarked If ETrue mark all items else unmark.

     * @param aSeparatorId Id of the separator.

     */

    void MarkItemsUnderSeparatorL( TBool aMarked, TInt aSeparatorId );

    //When maillist is activated this method handles the connection icon change

    void ConnectionIconHandling();

    void SetListAndCtrlBarFocusL();

    void SetMailListItemsExtendedL();

    void DoFirstStartL();

    // Called when flip state is changed

    void FlipStateChangedL( TBool aFlipOpen );

    /**

     * Handles the focus state changes

     * @param aShow Indicates if focus should become visible or removed

     */

    void HandleTimerFocusStateChange( TBool aShow );

private: // data types

private: // Private objects

    // Reference to Alf environment

    CAlfEnv& iEnv;

  	// Mail list updater timer

	// Timer delays mail update to prevent unnesessary redraw events

	CMailListUpdater* iMailListUpdater; 

	// Msg moved note timer

	CMsgMovedNoteTimer* iMsgNoteTimer; 

  	// Screen layout uses iMailListControl

	CAlfAnchorLayout* iScreenAnchorLayout;

  	// Control bar control and layout and store visual pointer

	CFsControlBar* iControlBarControl;

	CAlfVisual* iControlBarVisual;

 	CAlfDeckLayout* iControlBarLayout;  

  	// Mail List control and layout

    CFreestyleEmailUiMailListControl* iMailListControl;

 	CAlfDeckLayout* iListLayout;

// <cmail> this feature is waiting for title divider bg graphics

    CAlfImageVisual* iTitleDividerBgVisual;

// </cmail>

    CFSEmailUiMailListModel* iModel; 

  	CFsTreeList* iMailList;

    CFsTreeVisualizerBase* iMailTreeListVisualizer;

  	TInt iNumSlots;		

   	CFSMailFolder* iMailFolder;

    TInt iNewEmailsInModel; 	

	RArray<SMailListItem> iTreeItemArray;   

    RArray<TInt> iButtonsIds;

    TInt iFocusedControl;

    TBool iToolbarInUse;