/*
* Copyright (c) 2009 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:  ESMR Description field.
 *
*/


#ifndef CESMRDESCRIPTIONFIELD_H
#define CESMRDESCRIPTIONFIELD_H

#include <e32base.h>
#include <eikedwob.h>
#include <frmtlay.h>
#include "cesmrfield.h"

class CESMREditor;
class CCalEntry;
class CESMRRichTextLink;
class CESMRFeatureSettings;
class CAknsBasicBackgroundControlContext;
class CESMRUrlParserPlugin;

/**
 * This class is a custom field control that shows the description of calendar events
 */
NONSHARABLE_CLASS( CESMRDescriptionField ): public CESMRField,
                                            public MEikEdwinSizeObserver,
                                            public MEikEdwinObserver
    {
    public:
        /**
         * Creates new CESMRDescriptionField object. Ownership
         * is transferred to caller.
         * @return Pointer to created object,
         */
        static CESMRDescriptionField* NewL();

        /**
         * C++ Destructor.
         */
        ~CESMRDescriptionField();

    public: // From CESMRField
        void InitializeL();
        void InternalizeL( MESMRCalEntry& aEntry );
        void ExternalizeL( MESMRCalEntry& aEntry );
        void SetOutlineFocusL( TBool aFocus );
        TInt GetVerticalFocusPosition();
        void GetCursorLineVerticalPos(TInt& aUpper, TInt& aLower);
        void ListObserverSet();
        TBool ExecuteGenericCommandL( TInt aCommand );

    public: // From CCoeControl
        TKeyResponse OfferKeyEventL(const TKeyEvent& aEvent, TEventCode aType);
        TInt CountComponentControls() const;
        CCoeControl* ComponentControl( TInt aInd ) const;
        void SizeChanged();
        TSize MinimumSize();
        void SetContainerWindowL(
                const CCoeControl& aContainer );

    public: // From MEikEdwinSizeObserver
        TBool HandleEdwinSizeEventL( CEikEdwin* aEdwin, TEdwinSizeEvent aType, TSize aSize );

    public: // From MEikEdwinObserver
        void HandleEdwinEventL(CEikEdwin* aEdwin,TEdwinEvent aEventType);

    private:
        /**
         * Constructor.
         */
        CESMRDescriptionField();

        /**
         * Second phase constructor.
         */
        void ConstructL();

        /**
         * Converts raw URL text to a link in description editor field
         *
         * @param aEntry Calendar entry from which the description text is received
         */
        void StoreLinkL( MESMRCalEntry& aEntry );

        /**
         * Adds link to the beginning of text from editor field
         *
         * @param abuf initial description text buffer before addition
         *
         * @return The description text buffer with link added
         */
        HBufC* AddLinkToTextL( const TDesC& aBuf );

        /**
         * Gets feature settings
         */
        CESMRFeatureSettings& FeaturesL();

        /**
         * Converts location URL to vCal GEO value in calendar entry
         */
        void StoreGeoValueL( CCalEntry& aCalEntry,
                             const TDesC& aLocationUrl );

        CESMRUrlParserPlugin& UrlParserL();

    private:
        // Not owned. Description editor object.
        CESMREditor* iDescription;
        // Field size.
        TSize iSize;
        // Own: Location Url link
       CESMRRichTextLink* iLocationLink;
        // Own: Feature settings.
       CESMRFeatureSettings* iFeatures;
        // Field editor line count
        TInt iLineCount;
        // Own: Background for the editor when it is focused
        CAknsBasicBackgroundControlContext* iBgControlContext;
        // Field rect for comparison purposes
        TRect iFieldRect;
        // Own: URL parser plugin
        CESMRUrlParserPlugin* iUrlParser;
    };

#endif  // CESMRDESCRIPTIONFIELD_H