/*

* 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 "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 class for email header

*

*/

#ifndef __NCSEMAILHEADERUI_H__

#define __NCSEMAILHEADERUI_H__

#include <aknlongtapdetector.h>

#include "FreestyleEmailUi.hrh"

#include "ncsaddressinputfield.h"

#include "ncsfieldsizeobserver.h"

#include "ncsconstants.h"

class CFSMailBox;

class CNcsAttachmentField;

class CNcsEmailAddressObject;

class CNcsPopupListBox;

class CNcsSubjectField;

/**

*  CNcsHeaderContainer

*/

class CNcsHeaderContainer : public CCoeControl, public MNcsAddressPopupList

    {

public:

    /** Initialisation flags. */

    enum TInitFlags

        {

        ECcFieldVisible  = 0x01,

        EBccFieldVisible = 0x02

        };

    /**

     * Two-phased constructor.

     * Create a CNcsHeaderContainer object, which will draw itself to aRect

     * @param aRect The rectangle this view will be drawn to.

     * @param aMailBox reference to current mailbox item

     * @param aFlags Initialisation flags.

     * @return a pointer to the created instance of CNcsHeaderContainer.

     */

    static CNcsHeaderContainer* NewL( CCoeControl& aParent,

        CFSMailBox& aMailBox, TInt aFlags = NULL );

    /**

     * ~CNcsHeaderContainer

     * Destructor

     */

    virtual ~CNcsHeaderContainer();

private: // constructor/destructor

    /**

    * CNcsHeaderContainer

    * C++ constructor.

    * @param aParent Parent control.

    * @param aMailBox reference to current mailbox item

    */

	CNcsHeaderContainer( CCoeControl& aParent, CFSMailBox& aMailBox );

	/**

	* ConstructL

	* 2nd phase constructor.

	*/

	void ConstructL( TInt aFlags );

public: // function members

	/**

	* GetToFieldAddressesL

	* Get addresses in TO-field.

	* @return Array of addresses.

	*/

	const RPointerArray<CNcsEmailAddressObject>& GetToFieldAddressesL( 

        TBool aParseNow = ETrue );

	/**

	* GetCcFieldAddressesL

	* Get addresses in CC-field.

	* @return Array of addresses.

	*/

	const RPointerArray<CNcsEmailAddressObject>& GetCcFieldAddressesL( 

        TBool aParseNow = ETrue );

	/**

	* GetBccFieldAddressesL

	* Get addresses in BCC-field.

	* @return Array of addresses.

	*/

	const RPointerArray<CNcsEmailAddressObject>& GetBccFieldAddressesL( 

        TBool aParseNow = ETrue );

	/**

	* GetSubjectLC

	* Get text in SUBJECT-field.

	* @return Subject text.

	*/

	HBufC* GetSubjectLC() const;

	/**

	* GetToFieldLength

	* Get TO-field text length.

	* @return Text length.

	*/

	TInt GetToFieldLength() const;

	/**

	* GetCcFieldLength

	* Get CC-field text length.

	* @return Text length.

	*/

	TInt GetCcFieldLength() const;

	/**

	* GetBccFieldLength

	* Get BCC-field text length.

	* @return Text length.

	*/

	TInt GetBccFieldLength() const;

	/**

	* GetSubjectFieldLength

	* Get SUBJECT-field text length.

	* @return Text length.

	*/

	TInt GetSubjectFieldLength() const;

	/**

	* GetAttachmentCount

	* Get number of attachments.

	* @return Attachment count.

	*/

	TInt GetAttachmentCount() const;

    /**

    * HasRemoteAttachments

    * Tells if the message has one or more remote attachments

    * @return ETrue if the message has at least one remote attachment.

    */

    TBool HasRemoteAttachments() const;

    /**

	* GetToFieldSelectionLength

	* Get selected text length in TO-field.

	* @return Text length.

	*/

	TInt GetToFieldSelectionLength() const;

	/**

	* GetCcFieldSelectionLength

	* Get selected text length in CC-field.

	* @return Text length.

	*/

	TInt GetCcFieldSelectionLength() const;

	/**

	* GetBccFieldSelectionLength

	* Get selected text length in BCC-field.

	* @return Text length.

	*/

	TInt GetBccFieldSelectionLength() const;

	/**

	* GetLookupTextLC

	* Get lookup text in focused AIF.

	* @return Lookup text.

	*/

	HBufC* GetLookupTextLC() const;

	/**

	* SetToFieldAddressesL

	* Set addresses in TO-field.

	* @param aAddress Address array.

	*/

	void SetToFieldAddressesL( 

        const RPointerArray<CNcsEmailAddressObject>& aAddress );

	/**

	* SetCcFieldAddressesL

	* Set addresses in CC-field.

	* @param aAddress Address array.

	*/

	void SetCcFieldAddressesL( 

        const RPointerArray<CNcsEmailAddressObject>& aAddress );

	void SetBccFieldAddressesL( 

        const RPointerArray<CNcsEmailAddressObject>& aAddress );

	void AppendToFieldAddressesL( 

        const RPointerArray<CNcsEmailAddressObject>& aAddress );

	void AppendCcFieldAddressesL( 

        const RPointerArray<CNcsEmailAddressObject>& aAddress );

	void AppendBccFieldAddressesL( 

        const RPointerArray<CNcsEmailAddressObject>& aAddress );

	void SetSubjectL( const TDesC& aSubject );

	void SetMenuBar( CEikButtonGroupContainer* aMenuBar );

    void SetAttachmentLabelTextsLD( CDesCArray* aAttachmentNames, 

                                    CDesCArray* aAttachmentSizes );

    TInt FocusedAttachmentLabelIndex();

    void ShowAttachmentLabelL();

	void HideAttachmentLabel();

	void SetCcFieldVisibleL( 

        TBool aVisible, 

        TDrawNow aDrawNow = EDrawNow, 

        TBool aFocus = ETrue );

	void SetBccFieldVisibleL( 

        TBool aVisible, 

        TDrawNow aDrawNow = EDrawNow, 

        TBool aFocus = ETrue );

	void FixSemicolonInAddressFieldsL();

	TBool IsBccFieldVisible() const;

	TBool IsCcFieldVisible() const;

	TBool IsFocusAttachments() const;

	TBool IsFocusTo() const;

	TBool IsFocusCc() const;

	TBool IsFocusBcc() const;

	void IncludeAddressL();

	void IncludeAddressL( const CNcsEmailAddressObject& eml );

	// Update the field positions arround the anchor

    void UpdateFieldPosition( CCoeControl* aAnchor );

	// Check if the AIF menu should be displayed

	TBool NeedsAifMenu() const;

	// Get the total number of scrollable lines to update the scroll bar

	TInt ScrollableLines() const;

	// Get the total line count of all the controls in this container.

	TInt LineCount() const;

	// Get the current cursor position relative to the top of the container.

	TInt CursorPosition() const;

    // Get the cursor line number.

    TInt CursorLineNumber() const;

	void HandleControlArrayEventL(

		CCoeControlArray::TEvent aEvent,

		const CCoeControlArray *aArray,

		CCoeControl *aControl,

		TInt aControlId );

	//Set Middlesoftkey

	void SetMskL();

	void HandlePointerEventL( const TPointerEvent& aPointerEvent );

	void OpenPhonebookL();

	void HandleLongTap( const TPoint& aPenEventLocation, 

						 const TPoint& aPenEventScreenLocation );

    TBool NeedsLongTapL( const TPoint& aPenEventLocation );

	// Process a key event

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

	// Delete the selected address from the current AIF

	void DeleteSelectionL();

	TInt GetNumChars() const;

	void SelectAllToFieldTextL();

	void SelectAllCcFieldTextL();

	void SelectAllBccFieldTextL();

	void SelectAllSubjectFieldTextL();

	void FocusToField();

	void FocusAttachmentField();

    void SetPriority( TMsgPriority aPriority );

    void SetFollowUp( TBool aFollowUp );

    TBool AreAddressFieldsEmpty() const;

    void DoPopupSelectL();

    TBool IsPopupActive() const;

	void ClosePopupContactListL();

	void ShowPopupMenuBarL( TBool aShow );

	TBool IsToFieldEmpty() const;

	TBool IsCcFieldEmpty() const;

	TBool IsBccFieldEmpty() const;

    TBool IsSubjectFieldEmpty() const;

    void HandleDynamicVariantSwitchL();

    // sets up iSwitchChangeMskOff falg 

    void SwitchChangeMskOff(TBool aTag);

    virtual TInt LayoutLineCount() const;

    TBool IsAddressInputField( const CCoeControl* aControl ) const;

    TBool IsRemoteSearchInprogress() const;

    /**

     * Shows/hides cursor.

     * 

     * @param aShow ETrue - shows, EFalse - hides cursor.

     */

    void ShowCursor( TBool aShow );

    void DoScrollL();

private: // Function members

	void FocusChanged(TDrawNow aDrawNow);

	void UpdatePopupContactListL( const TDesC& aMatchString, TBool aListAll );

	CCoeControl* FindFocused() const;

	void Draw( const TRect& aRect ) const;

	void DrawAttachmentFocusNow();

	TKeyResponse ChangeFocusL( const TKeyEvent& aKeyEvent );

	void SizeChanged();

	void PositionChanged();

	TInt GetTotalHeight() const;

	void ChangePositions();

	TTypeUid::Ptr MopSupplyObject( TTypeUid aId );

    TRect CalculatePopupRect();

    void HandleAttachmentsOpenCommand();

    /**

    * Execute Remote Lookup Search.

    *

    * @param aExitReason RCL exit reason.

    * @param aSearchText Search text.

    * @return Selected email address object.

    */

    CNcsEmailAddressObject* ExecuteRemoteSearchL(

        CPbkxRemoteContactLookupServiceUiContext::TResult::TExitReason& 

            aExitReason,

        const TDesC& aSearchText );

    void ChangeMskCommandL( TInt aLabelResourceId );

    void CommitFieldL( CCoeControl* aField );

private:  //From MAknLongTapDetectorCallBack

    void HandleLongTapEventL( const TPoint& aPenEventLocation, 

            const TPoint& aPenEventScreenLocation );

private: // Data members

    /*

    * Parent window

    * Not Own

    */

    CCoeControl& iParent;

    MNcsFieldSizeObserver& iFieldSizeObserver;

    CAknLongTapDetector*      iLongTapDetector;

    CEikButtonGroupContainer* iMenuBar;

    CNcsAddressInputField* iToField;

    CNcsAddressInputField* iCcField;

    CNcsAddressInputField* iBccField;

    CNcsSubjectField* iSubjectField;

    CNcsAttachmentField* iAttachmentField;

	// The attachments count

    TInt iAttachmentCount;

	// Address popup data members

	CNcsPopupListBox* iAacListBox;

	CFSMailBox& iMailBox;

    //flag which disables changes of MSK label if any popup dialog is open

    TBool iSwitchChangeMskOff;

    CAknsBasicBackgroundControlContext* iBgContext;

    TBool iLongTapEventConsumed;

    TBool iRALInProgress;

    // Currently focused control

    CCoeControl* iFocused;

    };

#endif