/*

* 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 compose view

*

*/

#ifndef CNCSCOMPOSEVIEWCONTAINER_H

#define CNCSCOMPOSEVIEWCONTAINER_H

#include <AknDef.h>

#include <AknsControlContext.h>

#include <eikedwob.h>

#include <aknphysicsobserveriface.h> // MAknPhysicsObserver

#include "ncsfieldsizeobserver.h"

#include "ncsconstants.h"

#include "FreestyleEmailUiContactHandlerObserver.h"

#include "FreestyleEmailUi.hrh"

#include <aknlongtapdetector.h>

#include "FSAsyncTextFormatter.h"

class CAknPhysics;

class CNcsEditor;

class CNcsComposeView;

class CNcsHeaderContainer;

class CAknLongTapDetector;

class CAknDoubleSpanScrollBar;

class CFSMailBox;

class CAknsLayeredBackgroundControlContext;

class CFsAutoSaver;

class CNcsEmailAddressObject;

enum TAppendAddresses 

	{

	EAppendTo,

	EAppendCc,

	EAppendBcc

	};

/**

*  CNcsComposeViewContainer container control class.

*/

class CNcsComposeViewContainer: public CCoeControl, public MNcsFieldSizeObserver,

                                public MEikScrollBarObserver,

                                public MFSEmailUiContactHandlerObserver,

                                public MAknLongTapDetectorCallBack,

                                public MEikEdwinObserver,

                                public MEikEdwinSizeObserver,

                                public MAknPhysicsObserver,

                                public MAsyncTextFormatterObserver

    {

public:

    /** Initialisation flags. */

    enum TInitFlags

        {

        ECcFieldVisible  = 0x1,

        EBccFieldVisible = 0x2

        };

    /**

    * Two-phased constructor.

    * Create a CNcsComposeViewContainer object, that draws itself to aRect

    * @param aView The parent view of this container.

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

    * @param aMailBox reference to current mailbox item.

    * @param aFlags Initilisation flags defined in @c TInitFlag enumeration.

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

    */

    static CNcsComposeViewContainer* NewL( CNcsComposeView& aView, 

        const TRect& aRect, CFSMailBox& aMailBox, CFsAutoSaver& aAutoSaver,

        TInt aFlags = NULL );

    /**

    * Destructor.

    */

    virtual ~CNcsComposeViewContainer();

public: // new functions

    /**

    * UpdateScrollBar

    * Updates scroll bar data.

    */

    void UpdateScrollBar();

    /**

    * GetToFieldAddressesL

    * Get addresses in TO-field.

    * @return Array of address objects.

    */

    const RPointerArray<CNcsEmailAddressObject>& 

    GetToFieldAddressesL( TBool aParseNow=ETrue );

    /**

    * GetCcFieldAddressesL

    * Get addresses in CC-field.

    * @return Array of address objects.

    */

    const RPointerArray<CNcsEmailAddressObject>& 

    GetCcFieldAddressesL( TBool aParseNow=ETrue );

    /**

    * GetBccFieldAddressesL

    * Get addresses in BCC-field.

    * @return Array of address objects.

    */

    const RPointerArray<CNcsEmailAddressObject>& 

    GetBccFieldAddressesL( TBool aParseNow=ETrue );

    /**

    * GetSubjectLC

    * Get text in subject field.

    * @return Descriptor containing subject field text.

    */

    HBufC* GetSubjectLC() const;

    /**

    * GetToFieldSelectionLength

    * Get the length of selected text in TO-field.

    * @return Selection length.

    */

    TInt GetToFieldSelectionLength() const;

    /**

    * GetCcFieldSelectionLength

    * Get the length of selected text in CC-field.

    * @return Selection length.

    */

    TInt GetCcFieldSelectionLength() const;

    /**

    * GetBccFieldSelectionLength

    * Get the length of selected text in BCC-field.

    * @return Selection length.

    */

    TInt GetBccFieldSelectionLength() 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;

    /**

    * GetMessageFieldLength

    * Get MESSAGE-field text length.

    * @return Text length.

    */

    TInt GetMessageFieldLength() 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;

    /**

    * GetLookupTextLC

    * Get the text to match for fast addressing or remote lookup.

    * @return Match text.

    */

    HBufC* GetLookupTextLC() const;

    /**

    * SetToFieldAddressesL

    * Set TO-field addresses.

    * @param aAddress Array of address objects.

    */

    void SetToFieldAddressesL( 

            RPointerArray<CNcsEmailAddressObject>& aAddress );

    /**

    * SetCcFieldAddressesL

    * Set CC-field addresses.

    * @param aAddress Array of address objects.

    */

    void SetCcFieldAddressesL( 

            RPointerArray<CNcsEmailAddressObject>& aAddress );

    /**

    * SetBccFieldAddressesL

    * Set BCC-field addresses.

    * @param aAddress Array of address objects.

    */

    void SetBccFieldAddressesL( 

            RPointerArray<CNcsEmailAddressObject>& aAddress );

    /**

    * AppendToFieldAddressesL

    * Append TO-field addresses.

    * @param aAddress Array of address objects.

    */

    void AppendToFieldAddressesL( 

            RPointerArray<CNcsEmailAddressObject>& aAddress );

    /**

    * AppendCcFieldAddressesL

    * Append CC-field addresses.

    * @param aAddress Array of address objects.

    */

    void AppendCcFieldAddressesL( 

            RPointerArray<CNcsEmailAddressObject>& aAddress );

    /**

    * AppendBccFieldAddressesL

    * Append BCC-field addresses.

    * @param aAddress Array of address objects.

    */

    void AppendBccFieldAddressesL( 

            RPointerArray<CNcsEmailAddressObject>& aAddress );

    /**

    * SetSubjectL

    * Set SUBJECT-field text.

    * @param aSubject Text.

    */

    void SetSubjectL( const TDesC& aSubject );

    /**

    * SetCcFieldVisibleL

    * Set the visibility of CC-field.

    * @param aVisible True if the field is to be visible.

    * @param aFocus True if the field is to be focused.

    */

    void SetCcFieldVisibleL( TBool aVisible, TBool aFocus=ETrue );

    /**

    * SetBccFieldVisibleL

    * Set the visibility of BCC-field.

    * @param aVisible True if the field is to be visible.

    * @param aFocus True if the field is to be focused.

    */

    void SetBccFieldVisibleL( TBool aVisible, TBool aFocus=ETrue );

    /**

    * SetMenuBar

    * Set the menu bar.

    * @param aMenuBar The menu bar.

    */

    void SetMenuBar( CEikButtonGroupContainer* aMenuBar );

    /**

     * SetAttachmentLabelTextsL

     * Set attachment label informations from arrays of file name and

     * size informations. Some decorations may be added. 

     * The file name will be truncated autoamtically if needed.

     * The method takes ownership of the passed arrays.

     * @param  aAttachmentNames Descriptor array containing file names.

     * @param  aAttachmentSizes Descriptor array containing file sizes.

     */

    void SetAttachmentLabelTextsLD( CDesCArray* aAttachmentNames, 

                                    CDesCArray* aAttachmentSizes );

    /**

     * FocusedAttachmentLabelIndex

     * Returns the index of the attachment label that is currently focused

     * @return Index of the focused attachment label.

     */

    TInt FocusedAttachmentLabelIndex();

    /**

     * FixSemicolonL

     * Fixes possibly missing semicolon in message header address fields.

     */

    void FixSemicolonL();

    void HideAttachmentLabel();

    /**

    * IsCcFieldVisible

    * Test if CC-field is visible.

    * @return True if visible.

    */

    TBool IsCcFieldVisible() const;

    /**

    * IsBccFieldVisible

    * Test if BCC-field is visible.

    * @return True if visible.

    */

    TBool IsBccFieldVisible() const;

    /**

    * IsFocusTo

    * Test if TO-field is focused.

    * @return True if focused.

    */

    TBool IsFocusTo() const;

    /**

    * IsFocusCc

    * Test if CC-field is focused.

    * @return True if focused.

    */

    TBool IsFocusCc() const;

    /**

    * IsFocusBcc

    * Test if BCC-field is focused.

    * @return True if focused.

    */

    TBool IsFocusBcc() const;

    /**

    * IsFocusAttachments

    * Test if ATTACHMENTS-field is focused.

    * @return True if focused.

    */

    TBool IsFocusAttachments() const;

    /**

    * IncludeAddressL

    */

    void IncludeAddressL();

    /**

    * IncludeAddressL

    */

    void IncludeAddressL(const CNcsEmailAddressObject& eml);

    /**

    * ClosePopupContactListL

    * Closes the popup listbox.

    */

    void ClosePopupContactListL();

    /**

    * DeleteSelectionL

    * Deletes selected text in focused AIF

    */

    void DeleteSelectionL();

    /**

     * Set the contents of the message body.

     * @param aMessage Contents of MESSAGE-field.

     * @parem aReadOnlyQuote Contents of read-only quote field.

     */

    void SetBodyContentL( const TDesC& aMessage, const TDesC& aReadOnlyQuote );

    /**

     * Set the contents of the message body in asnchronous way.

     * @param aMessage Contents of MESSAGE-field.

     * @param aReadOnlyQuote Contents of read-only quote field.

     */

    void SetBodyContentAsyncL( const TDesC& aMessage, const TDesC& aReadOnlyQuote );

    /**

     * Get the contents of message body. The message body consists of

     * MESSAGE-field followed by optional read-only quote field.

     * @return Message body.

     */

    HBufC* GetBodyContentLC();

    /**

     * BodyText

     * Gets modifiable reference to the text in body text field.

     */

    CRichText& BodyText();

    /**

    * SetFocusToToField

    * Focuses the TO-field.

    */

    void SetFocusToToField();

    /**

    * SetFocusToAttachmentField

    * Focuses the ATTACHEMENT-field.

    */

    void SetFocusToAttachmentField();

    /**

    * SetFocusToMessageFieldL

    * Focuses the MESSAGE-field.

    */

    void SetFocusToMessageFieldL();

    /**

    * AddQuickTextL

    * Inserts text in current cursor position.

    * @param aText Text to insert.

    */

    void AddQuickTextL( const TDesC& aText );

    /**

    * SelectAllToFieldTextL

    * Selects all TO-field text.

    */

    void SelectAllToFieldTextL();

    /**

    * SelectAllCcFieldTextL

    * Selects all CC-field text.

    */

    void SelectAllCcFieldTextL();

    /**

    * SelectAllBccFieldTextL

    * Selects all BCC-field text.

    */

    void SelectAllBccFieldTextL();

    /**

    * SelectAllSubjectFieldTextL

    * Selects all SUBJECT-field text.

    */

    void SelectAllSubjectFieldTextL();

    /**

    * IsSubjectFieldEmpty

    * Tells if SUBJECT-field is empty (has default text or is empty).

    * @return True if user has not put anything to the field.

    */

    TBool IsSubjectFieldEmpty();

    /**

    * AppendAddressesL

    * Displays contacts dialog and appends selected addresses in 

    * focused AIF.

    *

    * @return ETrue if addresses we tried to append, EFalse otherwise. 

    */

    TBool AppendAddressesL();

    /**

    * HandleAttachmentsOpenCommand

    * 

    */

    void HandleAttachmentsOpenCommandL();

    /**

    * LaunchStylusPopupMenu

    * 

    */

    void LaunchStylusPopupMenu( const TPoint& aPenEventScreenLocation );

    /**

    * AreAddressFieldsEmpty

    * 

    */

    TBool AreAddressFieldsEmpty();

    void DoPopupSelectL();

    void HandleLayoutChangeL();

    void HandleSkinChangeL();

    TInt ContentTotalHeight();

    /**

    * CommitL

    * Commits changes to message

    */

    void CommitL( TFieldToCommit aFieldToCommit = EAllFields );

    /**

     * SwitchChangeMskOff

     * Sets up iSwitchChangeMskOff falg, which disables changes of MSK label

     * if any popup dialog is open

     */

    void SwitchChangeMskOff(TBool aTag);

    /**

     * Scroll

     * @param aTargetPos Scrolls display to given position

     */

    void Scroll( TInt aTargetPos, TBool aDrawNow = ETrue );

    /**

     * Stopping asynchronous text formatting of message body.

     */

    void StopAsyncTextFormatter();

public: // from MAsyncTextFormatterObserver

    /**

     * Called when text formatting was cancelled.

     */

    void FormatAllTextCancelled();

    /**

     * Called when text formatting is complete.